Come up with sillier names for the binaries

I'm not entirely sure, but it looks like some people might not like
jokes about the Holocaust.

On a more serious note, the project has become more serious over
the 7 or so years of its existence.

1 files changed, 0 insertions, 14473 deletions

diff --git a/degesch.c b/degesch.c
deleted file mode 100644
index 0f8f22b..0000000
--- a/degesch.c
+++ /dev/null
@@ -1,14473 +0,0 @@
-/*
- * degesch.c: a terminal-based IRC client
- *
- * Copyright (c) 2015 - 2021, Přemysl Eric Janouch <p@janouch.name>
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- */
-
-// A table of all attributes we use for output
-#define ATTR_TABLE(XX)                                                  \
-	XX( PROMPT,      prompt,      Terminal attrs for the prompt       ) \
-	XX( RESET,       reset,       String to reset terminal attributes ) \
-	XX( DATE_CHANGE, date_change, Terminal attrs for date change      ) \
-	XX( READ_MARKER, read_marker, Terminal attrs for the read marker  ) \
-	XX( WARNING,     warning,     Terminal attrs for warnings         ) \
-	XX( ERROR,       error,       Terminal attrs for errors           ) \
-	XX( EXTERNAL,    external,    Terminal attrs for external lines   ) \
-	XX( TIMESTAMP,   timestamp,   Terminal attrs for timestamps       ) \
-	XX( HIGHLIGHT,   highlight,   Terminal attrs for highlights       ) \
-	XX( ACTION,      action,      Terminal attrs for user actions     ) \
-	XX( USERHOST,    userhost,    Terminal attrs for user@host        ) \
-	XX( JOIN,        join,        Terminal attrs for joins            ) \
-	XX( PART,        part,        Terminal attrs for parts            )
-
-enum
-{
-#define XX(x, y, z) ATTR_ ## x,
-	ATTR_TABLE (XX)
-#undef XX
-	ATTR_COUNT
-};
-
-// User data for logger functions to enable formatted logging
-#define print_fatal_data    ((void *) ATTR_ERROR)
-#define print_error_data    ((void *) ATTR_ERROR)
-#define print_warning_data  ((void *) ATTR_WARNING)
-
-#include "config.h"
-#define PROGRAM_NAME "degesch"
-
-#include "common.c"
-#include "kike-replies.c"
-
-#include <math.h>
-#include <langinfo.h>
-#include <locale.h>
-#include <pwd.h>
-#include <sys/utsname.h>
-#include <wchar.h>
-
-#include <termios.h>
-#include <sys/ioctl.h>
-
-#include <curses.h>
-#include <term.h>
-
-// Literally cancer
-#undef lines
-#undef columns
-
-#include <ffi.h>
-
-#ifdef HAVE_LUA
-#include <lua.h>
-#include <lualib.h>
-#include <lauxlib.h>
-#endif // HAVE_LUA
-
-// --- Terminal information ----------------------------------------------------
-
-static struct
-{
-	bool initialized;                   ///< Terminal is available
-	bool stdout_is_tty;                 ///< `stdout' is a terminal
-	bool stderr_is_tty;                 ///< `stderr' is a terminal
-
-	struct termios termios;             ///< Terminal attributes
-	char *color_set_fg[256];            ///< Codes to set the foreground colour
-	char *color_set_bg[256];            ///< Codes to set the background colour
-
-	int lines;                          ///< Number of lines
-	int columns;                        ///< Number of columns
-}
-g_terminal;
-
-static void
-update_screen_size (void)
-{
-#ifdef TIOCGWINSZ
-	if (!g_terminal.stdout_is_tty)
-		return;
-
-	struct winsize size;
-	if (!ioctl (STDOUT_FILENO, TIOCGWINSZ, (char *) &size))
-	{
-		char *row = getenv ("LINES");
-		char *col = getenv ("COLUMNS");
-		unsigned long tmp;
-		g_terminal.lines =
-			(row && xstrtoul (&tmp, row, 10)) ? tmp : size.ws_row;
-		g_terminal.columns =
-			(col && xstrtoul (&tmp, col, 10)) ? tmp : size.ws_col;
-	}
-#endif // TIOCGWINSZ
-}
-
-static bool
-init_terminal (void)
-{
-	int tty_fd = -1;
-	if ((g_terminal.stderr_is_tty = isatty (STDERR_FILENO)))
-		tty_fd = STDERR_FILENO;
-	if ((g_terminal.stdout_is_tty = isatty (STDOUT_FILENO)))
-		tty_fd = STDOUT_FILENO;
-
-	int err;
-	if (tty_fd == -1 || setupterm (NULL, tty_fd, &err) == ERR)
-		return false;
-
-	// Make sure all terminal features used by us are supported
-	if (!set_a_foreground || !set_a_background
-	 || !enter_bold_mode || !exit_attribute_mode
-	 || tcgetattr (tty_fd, &g_terminal.termios))
-	{
-		del_curterm (cur_term);
-		return false;
-	}
-
-	// Make sure newlines are output correctly
-	g_terminal.termios.c_oflag |= ONLCR;
-	(void) tcsetattr (tty_fd, TCSADRAIN, &g_terminal.termios);
-
-	g_terminal.lines   = tigetnum ("lines");
-	g_terminal.columns = tigetnum ("cols");
-	update_screen_size ();
-
-	int max = MIN (256, max_colors);
-	for (int i = 0; i < max; i++)
-	{
-		g_terminal.color_set_fg[i] = xstrdup (tparm (set_a_foreground,
-			i, 0, 0, 0, 0, 0, 0, 0, 0));
-		g_terminal.color_set_bg[i] = xstrdup (tparm (set_a_background,
-			i, 0, 0, 0, 0, 0, 0, 0, 0));
-	}
-	return g_terminal.initialized = true;
-}
-
-static void
-free_terminal (void)
-{
-	if (!g_terminal.initialized)
-		return;
-
-	for (int i = 0; i < 256; i++)
-	{
-		free (g_terminal.color_set_fg[i]);
-		free (g_terminal.color_set_bg[i]);
-	}
-	del_curterm (cur_term);
-}
-
-// --- User interface ----------------------------------------------------------
-
-// I'm not sure which one of these backends is worse: whether it's GNU Readline
-// or BSD Editline.  They both have their own annoying problems.  We use lots
-// of hacks to get the results we want and need.
-//
-// The abstraction is a necessary evil.  It's still not 100%, though.
-
-/// Some arbitrary limit for the history
-#define HISTORY_LIMIT 10000
-
-/// Characters that separate words
-#define WORD_BREAKING_CHARS " \f\n\r\t\v"
-
-struct input
-{
-	struct input_vtable *vtable;        ///< Virtual methods
-	void (*add_functions) (void *);     ///< Define functions for binding
-	void *user_data;                    ///< User data for callbacks
-};
-
-typedef void *input_buffer_t;           ///< Pointer alias for input buffers
-
-/// Named function that can be bound to a sequence of characters
-typedef bool (*input_fn) (int count, int key, void *user_data);
-
-// A little bit better than tons of forwarder functions in our case
-#define CALL(self, name)        ((self)->vtable->name ((self)))
-#define CALL_(self, name, ...)  ((self)->vtable->name ((self), __VA_ARGS__))
-
-struct input_vtable
-{
-	/// Start the interface under the given program name
-	void (*start) (void *input, const char *program_name);
-	/// Stop the interface
-	void (*stop) (void *input);
-	/// Prepare or unprepare terminal for our needs
-	void (*prepare) (void *input, bool enabled);
-	/// Destroy the object
-	void (*destroy) (void *input);
-
-	/// Hide the prompt if shown
-	void (*hide) (void *input);
-	/// Show the prompt if hidden
-	void (*show) (void *input);
-	/// Retrieve current prompt string
-	const char *(*get_prompt) (void *input);
-	/// Change the prompt string; takes ownership
-	void (*set_prompt) (void *input, char *prompt);
-	/// Ring the terminal bell
-	void (*ding) (void *input);
-
-	/// Create a new input buffer
-	input_buffer_t (*buffer_new) (void *input);
-	/// Destroy an input buffer
-	void (*buffer_destroy) (void *input, input_buffer_t buffer);
-	/// Switch to a different input buffer
-	void (*buffer_switch) (void *input, input_buffer_t buffer);
-
-	/// Register a function that can be bound to character sequences
-	void (*register_fn) (void *input,
-		const char *name, const char *help, input_fn fn, void *user_data);
-	/// Bind an arbitrary sequence of characters to the given named function
-	void (*bind) (void *input, const char *seq, const char *fn);
-	/// Bind Ctrl+key to the given named function
-	void (*bind_control) (void *input, char key, const char *fn);
-	/// Bind Alt+key to the given named function
-	void (*bind_meta) (void *input, char key, const char *fn);
-
-	/// Get the current line input
-	char *(*get_line) (void *input);
-	/// Clear the current line input
-	void (*clear_line) (void *input);
-	/// Insert text at current position
-	bool (*insert) (void *input, const char *text);
-
-	/// Handle terminal resize
-	void (*on_tty_resized) (void *input);
-	/// Handle terminal input
-	void (*on_tty_readable) (void *input);
-};
-
-#define INPUT_VTABLE(XX)                                                       \
-	XX (start) XX (stop) XX (prepare) XX (destroy)                             \
-	XX (hide) XX (show) XX (get_prompt) XX (set_prompt) XX (ding)              \
-	XX (buffer_new) XX (buffer_destroy) XX (buffer_switch)                     \
-	XX (register_fn) XX (bind) XX (bind_control) XX (bind_meta)                \
-	XX (get_line) XX (clear_line) XX (insert)                                  \
-	XX (on_tty_resized) XX (on_tty_readable)
-
-// --- GNU Readline ------------------------------------------------------------
-
-#ifdef HAVE_READLINE
-
-#include <readline/readline.h>
-#include <readline/history.h>
-
-#define INPUT_START_IGNORE  RL_PROMPT_START_IGNORE
-#define INPUT_END_IGNORE    RL_PROMPT_END_IGNORE
-
-struct input_rl_fn
-{
-	ffi_closure closure;                ///< Closure
-
-	LIST_HEADER (struct input_rl_fn)
-	input_fn callback;                  ///< Real callback
-	void *user_data;                    ///< Real callback user data
-};
-
-struct input_rl_buffer
-{
-	HISTORY_STATE *history;             ///< Saved history state
-	char *saved_line;                   ///< Saved line content
-	int saved_point;                    ///< Saved cursor position
-	int saved_mark;                     ///< Saved mark
-};
-
-struct input_rl
-{
-	struct input super;                 ///< Parent class
-
-	bool active;                        ///< Interface has been started
-	char *prompt;                       ///< The prompt we use
-	int prompt_shown;                   ///< Whether the prompt is shown now
-
-	char *saved_line;                   ///< Saved line content
-	int saved_point;                    ///< Saved cursor position
-	int saved_mark;                     ///< Saved mark
-
-	struct input_rl_fn *fns;            ///< Named functions
-	struct input_rl_buffer *current;    ///< Current input buffer
-};
-
-static void
-input_rl_ding (void *input)
-{
-	(void) input;
-	rl_ding ();
-}
-
-static const char *
-input_rl_get_prompt (void *input)
-{
-	struct input_rl *self = input;
-	return self->prompt;
-}
-
-static void
-input_rl_set_prompt (void *input, char *prompt)
-{
-	struct input_rl *self = input;
-	cstr_set (&self->prompt, prompt);
-
-	if (!self->active || self->prompt_shown <= 0)
-		return;
-
-	// First reset the prompt to work around a bug in readline
-	rl_set_prompt ("");
-	rl_redisplay ();
-
-	rl_set_prompt (self->prompt);
-	rl_redisplay ();
-}
-
-static void
-input_rl_clear_line (void *input)
-{
-	(void) input;
-	rl_replace_line ("", false);
-	rl_redisplay ();
-}
-
-static void
-input_rl__erase (struct input_rl *self)
-{
-	rl_set_prompt ("");
-	input_rl_clear_line (self);
-}
-
-static bool
-input_rl_insert (void *input, const char *s)
-{
-	struct input_rl *self = input;
-	rl_insert_text (s);
-	if (self->prompt_shown > 0)
-		rl_redisplay ();
-
-	// GNU Readline, contrary to Editline, doesn't care about validity
-	return true;
-}
-
-static char *
-input_rl_get_line (void *input)
-{
-	(void) input;
-	return rl_copy_text (0, rl_end);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-input_rl_bind (void *input, const char *seq, const char *function_name)
-{
-	(void) input;
-	rl_bind_keyseq (seq, rl_named_function (function_name));
-}
-
-static void
-input_rl_bind_meta (void *input, char key, const char *function_name)
-{
-	// This one seems to actually work
-	char keyseq[] = { '\\', 'e', key, 0 };
-	input_rl_bind (input, keyseq, function_name);
-#if 0
-	// While this one only fucks up UTF-8
-	// Tested with urxvt and xterm, on Debian Jessie/Arch, default settings
-	// \M-<key> behaves exactly the same
-	rl_bind_key (META (key), rl_named_function (function_name));
-#endif
-}
-
-static void
-input_rl_bind_control (void *input, char key, const char *function_name)
-{
-	char keyseq[] = { '\\', 'C', '-', key, 0 };
-	input_rl_bind (input, keyseq, function_name);
-}
-
-static void
-input_rl__forward (ffi_cif *cif, void *ret, void **args, void *user_data)
-{
-	(void) cif;
-
-	struct input_rl_fn *data = user_data;
-	if (!data->callback
-		(*(int *) args[0], UNMETA (*(int *) args[1]), data->user_data))
-		rl_ding ();
-	*(int *) ret = 0;
-}
-
-static void
-input_rl_register_fn (void *input,
-	const char *name, const char *help, input_fn callback, void *user_data)
-{
-	struct input_rl *self = input;
-	(void) help;
-
-	void *bound_fn = NULL;
-	struct input_rl_fn *data = ffi_closure_alloc (sizeof *data, &bound_fn);
-	hard_assert (data);
-
-	static ffi_cif cif;
-	static ffi_type *args[2] = { &ffi_type_sint, &ffi_type_sint };
-	hard_assert (ffi_prep_cif
-		(&cif, FFI_DEFAULT_ABI, 2, &ffi_type_sint, args) == FFI_OK);
-
-	data->prev = data->next = NULL;
-	data->callback = callback;
-	data->user_data = user_data;
-	hard_assert (ffi_prep_closure_loc (&data->closure,
-		&cif, input_rl__forward, data, bound_fn) == FFI_OK);
-
-	rl_add_defun (name, (rl_command_func_t *) bound_fn, -1);
-	LIST_PREPEND (self->fns, data);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static int app_readline_init (void);
-static void on_readline_input (char *line);
-static char **app_readline_completion (const char *text, int start, int end);
-
-static void
-input_rl_start (void *input, const char *program_name)
-{
-	struct input_rl *self = input;
-	using_history ();
-	// This can cause memory leaks, or maybe even a segfault.  Funny, eh?
-	stifle_history (HISTORY_LIMIT);
-
-	const char *slash = strrchr (program_name, '/');
-	rl_readline_name = slash ? ++slash : program_name;
-	rl_startup_hook = app_readline_init;
-	rl_catch_sigwinch = false;
-	rl_change_environment = false;
-
-	rl_basic_word_break_characters = WORD_BREAKING_CHARS;
-	rl_completer_word_break_characters = NULL;
-	rl_attempted_completion_function = app_readline_completion;
-
-	// We shouldn't produce any duplicates that the library would help us
-	// autofilter, and we don't generally want alphabetic ordering at all
-	rl_sort_completion_matches = false;
-
-	hard_assert (self->prompt != NULL);
-	// The inputrc is read before any callbacks are called, so we need to
-	// register all functions that our user may want to map up front
-	self->super.add_functions (self->super.user_data);
-	rl_callback_handler_install (self->prompt, on_readline_input);
-
-	self->prompt_shown = 1;
-	self->active = true;
-}
-
-static void
-input_rl_stop (void *input)
-{
-	struct input_rl *self = input;
-	if (self->prompt_shown > 0)
-		input_rl__erase (self);
-
-	// This is okay as long as we're not called from within readline
-	rl_callback_handler_remove ();
-	self->active = false;
-	self->prompt_shown = false;
-}
-
-static void
-input_rl_prepare (void *input, bool enabled)
-{
-	(void) input;
-	if (enabled)
-		rl_prep_terminal (true);
-	else
-		rl_deprep_terminal ();
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-// The following part shows you why it's not a good idea to use
-// GNU Readline for this kind of software.  Or for anything else, really.
-
-static void
-input_rl__save_buffer (struct input_rl *self, struct input_rl_buffer *buffer)
-{
-	(void) self;
-
-	buffer->history = history_get_history_state ();
-	buffer->saved_line = rl_copy_text (0, rl_end);
-	buffer->saved_point = rl_point;
-	buffer->saved_mark = rl_mark;
-
-	rl_replace_line ("", true);
-	if (self->prompt_shown > 0)
-		rl_redisplay ();
-}
-
-static void
-input_rl__restore_buffer (struct input_rl *self, struct input_rl_buffer *buffer)
-{
-	if (buffer->history)
-	{
-		// history_get_history_state() just allocates a new HISTORY_STATE
-		// and fills it with its current internal data.  We don't need that
-		// shell anymore after reviving it.
-		history_set_history_state (buffer->history);
-		free (buffer->history);
-		buffer->history = NULL;
-	}
-	else
-	{
-		// This should get us a clean history while keeping the flags.
-		// Note that we've either saved the previous history entries, or we've
-		// cleared them altogether, so there should be nothing to leak.
-		HISTORY_STATE *state = history_get_history_state ();
-		state->offset = state->length = state->size = 0;
-		state->entries = NULL;
-		history_set_history_state (state);
-		free (state);
-	}
-
-	if (buffer->saved_line)
-	{
-		rl_replace_line (buffer->saved_line, true);
-		rl_point = buffer->saved_point;
-		rl_mark = buffer->saved_mark;
-		cstr_set (&buffer->saved_line, NULL);
-
-		if (self->prompt_shown > 0)
-			rl_redisplay ();
-	}
-}
-
-static void
-input_rl_buffer_switch (void *input, input_buffer_t input_buffer)
-{
-	struct input_rl *self = input;
-	struct input_rl_buffer *buffer = input_buffer;
-	// There could possibly be occurences of the current undo list in some
-	// history entry.  We either need to free the undo list, or move it
-	// somewhere else to load back later, as the buffer we're switching to
-	// has its own history state.
-	rl_free_undo_list ();
-
-	// Save this buffer's history so that it's independent for each buffer
-	if (self->current)
-		input_rl__save_buffer (self, self->current);
-	else
-		// Just throw it away; there should always be an active buffer however
-#if RL_READLINE_VERSION >= 0x0603
-		rl_clear_history ();
-#else // RL_READLINE_VERSION < 0x0603
-		// At least something... this may leak undo entries
-		clear_history ();
-#endif // RL_READLINE_VERSION < 0x0603
-
-	input_rl__restore_buffer (self, buffer);
-	self->current = buffer;
-}
-
-static void
-input_rl__buffer_destroy_wo_history (struct input_rl_buffer *self)
-{
-	free (self->history);
-	free (self->saved_line);
-	free (self);
-}
-
-static void
-input_rl_buffer_destroy (void *input, input_buffer_t input_buffer)
-{
-	(void) input;
-	struct input_rl_buffer *buffer = input_buffer;
-
-	// rl_clear_history, being the only way I know of to get rid of the complete
-	// history including attached data, is a pretty recent addition.  *sigh*
-#if RL_READLINE_VERSION >= 0x0603
-	if (buffer->history)
-	{
-		// See input_rl_buffer_switch() for why we need to do this BS
-		rl_free_undo_list ();
-
-		// This is probably the only way we can free the history fully
-		HISTORY_STATE *state = history_get_history_state ();
-
-		history_set_history_state (buffer->history);
-		rl_clear_history ();
-		// rl_clear_history just removes history entries,
-		// we have to reclaim memory for their actual container ourselves
-		free (buffer->history->entries);
-		free (buffer->history);
-		buffer->history = NULL;
-
-		history_set_history_state (state);
-		free (state);
-	}
-#endif // RL_READLINE_VERSION
-
-	input_rl__buffer_destroy_wo_history (buffer);
-}
-
-static input_buffer_t
-input_rl_buffer_new (void *input)
-{
-	(void) input;
-	struct input_rl_buffer *self = xcalloc (1, sizeof *self);
-	return self;
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-// Since {save,restore}_buffer() store history, we can't use them here like we
-// do with libedit, because then buffer_destroy() can free memory that's still
-// being used by readline.  This situation is bound to happen on quit.
-
-static void
-input_rl__save (struct input_rl *self)
-{
-	hard_assert (!self->saved_line);
-
-	self->saved_point = rl_point;
-	self->saved_mark = rl_mark;
-	self->saved_line = rl_copy_text (0, rl_end);
-}
-
-static void
-input_rl__restore (struct input_rl *self)
-{
-	hard_assert (self->saved_line);
-
-	rl_set_prompt (self->prompt);
-	rl_replace_line (self->saved_line, false);
-	rl_point = self->saved_point;
-	rl_mark = self->saved_mark;
-	cstr_set (&self->saved_line, NULL);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-input_rl_hide (void *input)
-{
-	struct input_rl *self = input;
-	if (!self->active || self->prompt_shown-- < 1)
-		return;
-
-	input_rl__save (self);
-	input_rl__erase (self);
-}
-
-static void
-input_rl_show (void *input)
-{
-	struct input_rl *self = input;
-	if (!self->active || ++self->prompt_shown < 1)
-		return;
-
-	input_rl__restore (self);
-	rl_redisplay ();
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-input_rl_on_tty_resized (void *input)
-{
-	(void) input;
-	// This fucks up big time on terminals with automatic wrapping such as
-	// rxvt-unicode or newer VTE when the current line overflows, however we
-	// can't do much about that
-	rl_resize_terminal ();
-}
-
-static void
-input_rl_on_tty_readable (void *input)
-{
-	(void) input;
-	rl_callback_read_char ();
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-input_rl_destroy (void *input)
-{
-	struct input_rl *self = input;
-	free (self->saved_line);
-	LIST_FOR_EACH (struct input_rl_fn, iter, self->fns)
-		ffi_closure_free (iter);
-	free (self->prompt);
-	free (self);
-}
-
-#define XX(a) .a = input_rl_ ## a,
-static struct input_vtable input_rl_vtable = { INPUT_VTABLE (XX) };
-#undef XX
-
-static struct input *
-input_rl_new (void)
-{
-	struct input_rl *self = xcalloc (1, sizeof *self);
-	self->super.vtable = &input_rl_vtable;
-	return &self->super;
-}
-
-#define input_new input_rl_new
-#endif // HAVE_READLINE
-
-// --- BSD Editline ------------------------------------------------------------
-
-#ifdef HAVE_EDITLINE
-
-#include <histedit.h>
-
-#define INPUT_START_IGNORE  '\x01'
-#define INPUT_END_IGNORE    '\x01'
-
-struct input_el_fn
-{
-	ffi_closure closure;                ///< Closure
-
-	LIST_HEADER (struct input_el_fn)
-	input_fn callback;                  ///< Real callback
-	void *user_data;                    ///< Real callback user data
-
-	wchar_t *name;                      ///< Function name
-	wchar_t *help;                      ///< Function help
-};
-
-struct input_el_buffer
-{
-	HistoryW *history;                  ///< The history object
-	wchar_t *saved_line;                ///< Saved line content
-	int saved_len;                      ///< Length of the saved line
-	int saved_point;                    ///< Saved cursor position
-};
-
-struct input_el
-{
-	struct input super;                 ///< Parent class
-	EditLine *editline;                 ///< The EditLine object
-
-	bool active;                        ///< Are we a thing?
-	char *prompt;                       ///< The prompt we use
-	int prompt_shown;                   ///< Whether the prompt is shown now
-
-	struct input_el_fn *fns;            ///< Named functions
-	struct input_el_buffer *current;    ///< Current input buffer
-};
-
-static void app_editline_init (struct input_el *self);
-
-static int
-input_el__get_termios (int character, int fallback)
-{
-	if (!g_terminal.initialized)
-		return fallback;
-
-	cc_t value = g_terminal.termios.c_cc[character];
-	if (value == _POSIX_VDISABLE)
-		return fallback;
-	return value;
-}
-
-static void
-input_el__redisplay (void *input)
-{
-	// See rl_redisplay()
-	struct input_el *self = input;
-	char x[] = { input_el__get_termios (VREPRINT, 'R' - 0x40), 0 };
-	el_push (self->editline, x);
-
-	// We have to do this or it gets stuck and nothing is done
-	int count = 0;
-	(void) el_wgets (self->editline, &count);
-}
-
-static char *
-input_el__make_prompt (EditLine *editline)
-{
-	struct input_el *self;
-	el_get (editline, EL_CLIENTDATA, &self);
-	if (!self->prompt)
-		return "";
-	return self->prompt;
-}
-
-static char *
-input_el__make_empty_prompt (EditLine *editline)
-{
-	(void) editline;
-	return "";
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-input_el_ding (void *input)
-{
-	// XXX: this isn't probably very portable;
-	//   we could use "bell" from terminfo but that creates a dependency
-	(void) input;
-	write (STDOUT_FILENO, "\a", 1);
-}
-
-static const char *
-input_el_get_prompt (void *input)
-{
-	struct input_el *self = input;
-	return self->prompt;
-}
-
-static void
-input_el_set_prompt (void *input, char *prompt)
-{
-	struct input_el *self = input;
-	cstr_set (&self->prompt, prompt);
-
-	if (self->prompt_shown > 0)
-		input_el__redisplay (self);
-}
-
-static void
-input_el_clear_line (void *input)
-{
-	struct input_el *self = input;
-	const LineInfoW *info = el_wline (self->editline);
-	int len = info->lastchar - info->buffer;
-	int point = info->cursor - info->buffer;
-	el_cursor (self->editline, len - point);
-	el_wdeletestr (self->editline, len);
-	input_el__redisplay (self);
-}
-
-static void
-input_el__erase (struct input_el *self)
-{
-	el_set (self->editline, EL_PROMPT, input_el__make_empty_prompt);
-	input_el_clear_line (self);
-}
-
-static bool
-input_el_insert (void *input, const char *s)
-{
-	struct input_el *self = input;
-	bool success = !*s || !el_insertstr (self->editline, s);
-	if (self->prompt_shown > 0)
-		input_el__redisplay (self);
-	return success;
-}
-
-static char *
-input_el_get_line (void *input)
-{
-	struct input_el *self = input;
-	const LineInfo *info = el_line (self->editline);
-	return xstrndup (info->buffer, info->lastchar - info->buffer);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-input_el_bind (void *input, const char *seq, const char *function_name)
-{
-	struct input_el *self = input;
-	el_set (self->editline, EL_BIND, seq, function_name, NULL);
-}
-
-static void
-input_el_bind_meta (void *input, char key, const char *function_name)
-{
-	char keyseq[] = { 'M', '-', key, 0 };
-	input_el_bind (input, keyseq, function_name);
-}
-
-static void
-input_el_bind_control (void *input, char key, const char *function_name)
-{
-	char keyseq[] = { '^', key, 0 };
-	input_el_bind (input, keyseq, function_name);
-}
-
-static void
-input_el__forward (ffi_cif *cif, void *ret, void **args, void *user_data)
-{
-	(void) cif;
-
-	struct input_el_fn *data = user_data;
-	*(unsigned char *) ret = data->callback
-		(1, *(int *) args[1], data->user_data) ? CC_NORM : CC_ERROR;
-}
-
-static wchar_t *
-ascii_to_wide (const char *ascii)
-{
-	size_t len = strlen (ascii) + 1;
-	wchar_t *wide = xcalloc (sizeof *wide, len);
-	while (len--)
-		hard_assert ((wide[len] = (unsigned char) ascii[len]) < 0x80);
-	return wide;
-}
-
-static void
-input_el_register_fn (void *input,
-	const char *name, const char *help, input_fn callback, void *user_data)
-{
-	void *bound_fn = NULL;
-	struct input_el_fn *data = ffi_closure_alloc (sizeof *data, &bound_fn);
-	hard_assert (data);
-
-	static ffi_cif cif;
-	static ffi_type *args[2] = { &ffi_type_pointer, &ffi_type_sint };
-	hard_assert (ffi_prep_cif
-		(&cif, FFI_DEFAULT_ABI, 2, &ffi_type_uchar, args) == FFI_OK);
-
-	data->user_data = user_data;
-	data->callback = callback;
-	data->name = ascii_to_wide (name);
-	data->help = ascii_to_wide (help);
-	hard_assert (ffi_prep_closure_loc (&data->closure,
-		&cif, input_el__forward, data, bound_fn) == FFI_OK);
-
-	struct input_el *self = input;
-	el_wset (self->editline, EL_ADDFN, data->name, data->help, bound_fn);
-	LIST_PREPEND (self->fns, data);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-input_el_start (void *input, const char *program_name)
-{
-	struct input_el *self = input;
-	self->editline = el_init (program_name, stdin, stdout, stderr);
-	el_set (self->editline, EL_CLIENTDATA, self);
-	el_set (self->editline, EL_PROMPT_ESC,
-		input_el__make_prompt, INPUT_START_IGNORE);
-	el_set (self->editline, EL_SIGNAL, false);
-	el_set (self->editline, EL_UNBUFFERED, true);
-	el_set (self->editline, EL_EDITOR, "emacs");
-
-	app_editline_init (self);
-
-	self->prompt_shown = 1;
-	self->active = true;
-}
-
-static void
-input_el_stop (void *input)
-{
-	struct input_el *self = input;
-	if (self->prompt_shown > 0)
-		input_el__erase (self);
-
-	el_end (self->editline);
-	self->editline = NULL;
-	self->active = false;
-	self->prompt_shown = false;
-}
-
-static void
-input_el_prepare (void *input, bool enabled)
-{
-	struct input_el *self = input;
-	el_set (self->editline, EL_PREP_TERM, enabled);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-input_el__save_buffer (struct input_el *self, struct input_el_buffer *buffer)
-{
-	const LineInfoW *info = el_wline (self->editline);
-	int len = info->lastchar - info->buffer;
-	int point = info->cursor - info->buffer;
-
-	wchar_t *line = calloc (sizeof *info->buffer, len + 1);
-	memcpy (line, info->buffer, sizeof *info->buffer * len);
-	el_cursor (self->editline, len - point);
-	el_wdeletestr (self->editline, len);
-
-	buffer->saved_line = line;
-	buffer->saved_point = point;
-	buffer->saved_len = len;
-}
-
-static void
-input_el__save (struct input_el *self)
-{
-	if (self->current)
-		input_el__save_buffer (self, self->current);
-}
-
-static void
-input_el__restore_buffer (struct input_el *self, struct input_el_buffer *buffer)
-{
-	if (buffer->saved_line)
-	{
-		el_winsertstr (self->editline, buffer->saved_line);
-		el_cursor (self->editline,
-			-(buffer->saved_len - buffer->saved_point));
-		free (buffer->saved_line);
-		buffer->saved_line = NULL;
-	}
-}
-
-static void
-input_el__restore (struct input_el *self)
-{
-	if (self->current)
-		input_el__restore_buffer (self, self->current);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-input_el_buffer_switch (void *input, input_buffer_t input_buffer)
-{
-	struct input_el *self = input;
-	struct input_el_buffer *buffer = input_buffer;
-
-	if (self->current)
-		input_el__save_buffer (self, self->current);
-
-	input_el__restore_buffer (self, buffer);
-	el_wset (self->editline, EL_HIST, history, buffer->history);
-	self->current = buffer;
-}
-
-static void
-input_el_buffer_destroy (void *input, input_buffer_t input_buffer)
-{
-	(void) input;
-	struct input_el_buffer *buffer = input_buffer;
-
-	history_wend (buffer->history);
-	free (buffer->saved_line);
-	free (buffer);
-}
-
-static input_buffer_t
-input_el_buffer_new (void *input)
-{
-	(void) input;
-	struct input_el_buffer *self = xcalloc (1, sizeof *self);
-	self->history = history_winit ();
-
-	HistEventW ev;
-	history_w (self->history, &ev, H_SETSIZE, HISTORY_LIMIT);
-	return self;
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-input_el_hide (void *input)
-{
-	struct input_el *self = input;
-	if (!self->active || self->prompt_shown-- < 1)
-		return;
-
-	input_el__save (self);
-	input_el__erase (self);
-}
-
-static void
-input_el_show (void *input)
-{
-	struct input_el *self = input;
-	if (!self->active || ++self->prompt_shown < 1)
-		return;
-
-	input_el__restore (self);
-	el_set (self->editline,
-		EL_PROMPT_ESC, input_el__make_prompt, INPUT_START_IGNORE);
-	input_el__redisplay (self);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-input_el_on_tty_resized (void *input)
-{
-	struct input_el *self = input;
-	el_resize (self->editline);
-}
-
-static void
-input_el_on_tty_readable (void *input)
-{
-	// We bind the return key to process it how we need to
-	struct input_el *self = input;
-
-	// el_gets() with EL_UNBUFFERED doesn't work with UTF-8,
-	// we must use the wide-character interface
-	int count = 0;
-	const wchar_t *buf = el_wgets (self->editline, &count);
-	if (!buf || count-- <= 0)
-		return;
-
-	if (count == 0 && buf[0] == ('D' - 0x40) /* hardcoded VEOF in editline */)
-	{
-		el_deletestr (self->editline, 1);
-		input_el__redisplay (self);
-		input_el_ding (self);
-	}
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-input_el_destroy (void *input)
-{
-	struct input_el *self = input;
-	LIST_FOR_EACH (struct input_el_fn, iter, self->fns)
-	{
-		free (iter->name);
-		free (iter->help);
-		ffi_closure_free (iter);
-	}
-	free (self->prompt);
-	free (self);
-}
-
-#define XX(a) .a = input_el_ ## a,
-static struct input_vtable input_el_vtable = { INPUT_VTABLE (XX) };
-#undef XX
-
-static struct input *
-input_el_new (void)
-{
-	struct input_el *self = xcalloc (1, sizeof *self);
-	self->super.vtable = &input_el_vtable;
-	return &self->super;
-}
-
-#define input_new input_el_new
-#endif // HAVE_EDITLINE
-
-// --- Application data --------------------------------------------------------
-
-// All text stored in our data structures is encoded in UTF-8.  Or at least
-// should be--our only ways of retrieving strings are: via the command line
-// (converted from locale, no room for errors), via the configuration file
-// (restrictive ASCII grammar for bare words and an internal check for strings),
-// and via plugins (meticulously validated).
-//
-// The only exception is IRC identifiers.
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-// We need a few reference countable objects with support for both strong
-// and weak references (mainly used for scripted plugins).
-//
-// Beware that if you don't own the object, you will most probably want
-// to keep the weak reference link so that you can get rid of it later.
-// Also note that you have to make sure the user_data don't leak resources.
-//
-// Having a callback is more versatile than just nulling out a pointer.
-
-/// Callback just before a reference counted object is destroyed
-typedef void (*destroy_cb_fn) (void *object, void *user_data);
-
-struct weak_ref_link
-{
-	LIST_HEADER (struct weak_ref_link)
-
-	destroy_cb_fn on_destroy;           ///< Called when object is destroyed
-	void *user_data;                    ///< User data
-};
-
-static struct weak_ref_link *
-weak_ref (struct weak_ref_link **list, destroy_cb_fn cb, void *user_data)
-{
-	struct weak_ref_link *link = xcalloc (1, sizeof *link);
-	link->on_destroy = cb;
-	link->user_data = user_data;
-	LIST_PREPEND (*list, link);
-	return link;
-}
-
-static void
-weak_unref (struct weak_ref_link **list, struct weak_ref_link **link)
-{
-	if (*link)
-		LIST_UNLINK (*list, *link);
-	free (*link);
-	*link = NULL;
-}
-
-#define REF_COUNTABLE_HEADER                                                   \
-	size_t ref_count;                   /**< Reference count                */ \
-	struct weak_ref_link *weak_refs;    /**< To remove any weak references  */
-
-#define REF_COUNTABLE_METHODS(name)                                            \
-	static struct name *                                                       \
-	name ## _ref (struct name *self)                                           \
-	{                                                                          \
-		self->ref_count++;                                                     \
-		return self;                                                           \
-	}                                                                          \
-																			   \
-	static void                                                                \
-	name ## _unref (struct name *self)                                         \
-	{                                                                          \
-		if (--self->ref_count)                                                 \
-			return;                                                            \
-		LIST_FOR_EACH (struct weak_ref_link, iter, self->weak_refs)            \
-		{                                                                      \
-			iter->on_destroy (self, iter->user_data);                          \
-			free (iter);                                                       \
-		}                                                                      \
-		name ## _destroy (self);                                               \
-	}                                                                          \
-																			   \
-	static struct weak_ref_link *                                              \
-	name ## _weak_ref (struct name *self, destroy_cb_fn cb, void *user_data)   \
-	{ return weak_ref (&self->weak_refs, cb, user_data); }                     \
-																			   \
-	static void                                                                \
-	name ## _weak_unref (struct name *self, struct weak_ref_link **link)       \
-	{ weak_unref (&self->weak_refs, link); }
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-// Simple introspection framework to simplify exporting stuff to Lua, since
-// there is a lot of it.  While not fully automated, at least we have control
-// over which fields are exported.
-
-enum ispect_type
-{
-	ISPECT_BOOL, ISPECT_INT, ISPECT_UINT, ISPECT_SIZE, ISPECT_STRING,
-
-	ISPECT_STR,                         ///< "struct str"
-	ISPECT_STR_MAP,                     ///< "struct str_map"
-	ISPECT_REF                          ///< Weakly referenced object
-};
-
-struct ispect_field
-{
-	const char *name;                   ///< Name of the field
-	size_t offset;                      ///< Offset in the structure
-	enum ispect_type type;              ///< Type of the field
-
-	enum ispect_type subtype;           ///< STR_MAP subtype
-	struct ispect_field *fields;        ///< REF target fields
-	bool is_list;                       ///< REF target is a list
-};
-
-#define ISPECT(object, field, type)                                            \
-	{ #field, offsetof (struct object, field), ISPECT_##type, 0, NULL, false },
-#define ISPECT_REF(object, field, is_list, ref_type)                           \
-	{ #field, offsetof (struct object, field), ISPECT_REF, 0,                  \
-	  g_##ref_type##_ispect, is_list },
-#define ISPECT_MAP(object, field, subtype)                                     \
-	{ #field, offsetof (struct object, field), ISPECT_STR_MAP,                 \
-	  ISPECT_##subtype, NULL, false },
-#define ISPECT_MAP_REF(object, field, is_list, ref_type)                       \
-	{ #field, offsetof (struct object, field), ISPECT_STR_MAP,                 \
-	  ISPECT_REF, g_##ref_type##_ispect, is_list },
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-struct user_channel
-{
-	LIST_HEADER (struct user_channel)
-
-	struct channel *channel;            ///< Reference to channel
-};
-
-static struct user_channel *
-user_channel_new (struct channel *channel)
-{
-	struct user_channel *self = xcalloc (1, sizeof *self);
-	self->channel = channel;
-	return self;
-}
-
-static void
-user_channel_destroy (struct user_channel *self)
-{
-	// The "channel" reference is weak and this object should get
-	// destroyed whenever the user stops being in the channel.
-	free (self);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-// We keep references to user information in channels and buffers,
-// and weak references in the name lookup table.
-
-struct user
-{
-	REF_COUNTABLE_HEADER
-
-	char *nickname;                     ///< Literal nickname
-	bool away;                          ///< User is away
-
-	struct user_channel *channels;      ///< Channels the user is on (with us)
-};
-
-static struct ispect_field g_user_ispect[] =
-{
-	ISPECT( user, nickname, STRING )
-	ISPECT( user, away,     BOOL   )
-	{}
-};
-
-static struct user *
-user_new (char *nickname)
-{
-	struct user *self = xcalloc (1, sizeof *self);
-	self->ref_count = 1;
-	self->nickname = nickname;
-	return self;
-}
-
-static void
-user_destroy (struct user *self)
-{
-	free (self->nickname);
-	LIST_FOR_EACH (struct user_channel, iter, self->channels)
-		user_channel_destroy (iter);
-	free (self);
-}
-
-REF_COUNTABLE_METHODS (user)
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-struct channel_user
-{
-	LIST_HEADER (struct channel_user)
-
-	struct user *user;                  ///< Reference to user
-	char *prefixes;                     ///< Ordered @+... characters
-};
-
-static struct channel_user *
-channel_user_new (struct user *user, const char *prefixes)
-{
-	struct channel_user *self = xcalloc (1, sizeof *self);
-	self->user = user;
-	self->prefixes = xstrdup (prefixes);
-	return self;
-}
-
-static void
-channel_user_destroy (struct channel_user *self)
-{
-	user_unref (self->user);
-	free (self->prefixes);
-	free (self);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-// We keep references to channels in their buffers,
-// and weak references in their users and the name lookup table.
-
-struct channel
-{
-	REF_COUNTABLE_HEADER
-
-	struct server *s;                   ///< Server
-
-	char *name;                         ///< Channel name
-	char *topic;                        ///< Channel topic
-
-	// XXX: write something like an ordered set of characters object?
-	struct str no_param_modes;          ///< No parameter channel modes
-	struct str_map param_modes;         ///< Parametrized channel modes
-
-	struct channel_user *users;         ///< Channel users
-	struct strv names_buf;              ///< Buffer for RPL_NAMREPLY
-	size_t users_len;                   ///< User count
-
-	bool left_manually;                 ///< Don't rejoin on reconnect
-	bool show_names_after_who;          ///< RPL_ENDOFWHO delays RPL_ENDOFNAMES
-};
-
-static struct ispect_field g_channel_ispect[] =
-{
-	ISPECT( channel, name,           STRING  )
-	ISPECT( channel, topic,          STRING  )
-	ISPECT( channel, no_param_modes, STR     )
-	ISPECT_MAP( channel, param_modes, STRING )
-	ISPECT( channel, users_len,      SIZE    )
-	ISPECT( channel, left_manually,  BOOL    )
-	{}
-};
-
-static struct channel *
-channel_new (struct server *s, char *name)
-{
-	struct channel *self = xcalloc (1, sizeof *self);
-	self->ref_count = 1;
-	self->s = s;
-	self->name = name;
-	self->no_param_modes = str_make ();
-	self->param_modes = str_map_make (free);
-	self->names_buf = strv_make ();
-	return self;
-}
-
-static void
-channel_destroy (struct channel *self)
-{
-	free (self->name);
-	free (self->topic);
-	str_free (&self->no_param_modes);
-	str_map_free (&self->param_modes);
-	// Owner has to make sure we have no users by now
-	hard_assert (!self->users && !self->users_len);
-	strv_free (&self->names_buf);
-	free (self);
-}
-
-REF_COUNTABLE_METHODS (channel)
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-enum formatter_item_type
-{
-	FORMATTER_ITEM_END,                 ///< Sentinel value for arrays
-	FORMATTER_ITEM_TEXT,                ///< Text
-	FORMATTER_ITEM_ATTR,                ///< Formatting attributes
-	FORMATTER_ITEM_FG_COLOR,            ///< Foreground colour
-	FORMATTER_ITEM_BG_COLOR,            ///< Background colour
-	FORMATTER_ITEM_SIMPLE,              ///< Toggle mIRC formatting
-	FORMATTER_ITEM_IGNORE_ATTR          ///< Un/set attribute ignoration
-};
-
-struct formatter_item
-{
-	enum formatter_item_type type : 16; ///< Type of this item
-	int attribute                 : 16; ///< Attribute ID
-	int color;                          ///< Colour
-	char *text;                         ///< String
-};
-
-static void
-formatter_item_free (struct formatter_item *self)
-{
-	free (self->text);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-struct formatter
-{
-	struct app_context *ctx;            ///< Application context
-	struct server *s;                   ///< Server
-
-	struct formatter_item *items;       ///< Items
-	size_t items_len;                   ///< Items used
-	size_t items_alloc;                 ///< Items allocated
-};
-
-static struct formatter
-formatter_make (struct app_context *ctx, struct server *s)
-{
-	struct formatter self = { .ctx = ctx, .s = s };
-	self.items = xcalloc (sizeof *self.items, (self.items_alloc = 16));
-	return self;
-}
-
-static void
-formatter_free (struct formatter *self)
-{
-	for (size_t i = 0; i < self->items_len; i++)
-		formatter_item_free (&self->items[i]);
-	free (self->items);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-enum buffer_line_flags
-{
-	BUFFER_LINE_STATUS      = 1 << 0,   ///< Status message
-	BUFFER_LINE_ERROR       = 1 << 1,   ///< Error message
-	BUFFER_LINE_HIGHLIGHT   = 1 << 2,   ///< The user was highlighted by this
-	BUFFER_LINE_SKIP_FILE   = 1 << 3,   ///< Don't log this to file
-	BUFFER_LINE_INDENT      = 1 << 4,   ///< Just indent the line
-	BUFFER_LINE_UNIMPORTANT = 1 << 5    ///< Joins, parts, similar spam
-};
-
-struct buffer_line
-{
-	LIST_HEADER (struct buffer_line)
-
-	int flags;                          ///< Flags
-	time_t when;                        ///< Time of the event
-	struct formatter_item items[];      ///< Line data
-};
-
-/// Create a new buffer line stealing all data from the provided formatter
-struct buffer_line *
-buffer_line_new (struct formatter *f)
-{
-	// We make space for one more item that gets initialized to all zeros,
-	// meaning FORMATTER_ITEM_END (because it's the first value in the enum)
-	size_t items_size = f->items_len * sizeof *f->items;
-	struct buffer_line *self =
-		xcalloc (1, sizeof *self + items_size + sizeof *self->items);
-	memcpy (self->items, f->items, items_size);
-
-	// We've stolen pointers from the formatter, let's destroy it altogether
-	free (f->items);
-	memset (f, 0, sizeof *f);
-	return self;
-}
-
-static void
-buffer_line_destroy (struct buffer_line *self)
-{
-	for (struct formatter_item *iter = self->items; iter->type; iter++)
-		formatter_item_free (iter);
-	free (self);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-enum buffer_type
-{
-	BUFFER_GLOBAL,                      ///< Global information
-	BUFFER_SERVER,                      ///< Server-related messages
-	BUFFER_CHANNEL,                     ///< Channels
-	BUFFER_PM                           ///< Private messages (query)
-};
-
-struct buffer
-{
-	LIST_HEADER (struct buffer)
-	REF_COUNTABLE_HEADER
-
-	enum buffer_type type;              ///< Type of the buffer
-	char *name;                         ///< The name of the buffer
-
-	struct input *input;                ///< API for "input_data"
-	input_buffer_t input_data;          ///< User interface data
-
-	// Buffer contents:
-
-	struct buffer_line *lines;          ///< All lines in this buffer
-	struct buffer_line *lines_tail;     ///< The tail of buffer lines
-	unsigned lines_count;               ///< How many lines we have
-
-	unsigned new_messages_count;        ///< # messages since last left
-	unsigned new_unimportant_count;     ///< How much of that is unimportant
-	bool highlighted;                   ///< We've been highlighted
-	bool hide_unimportant;              ///< Hide unimportant messages
-
-	FILE *log_file;                     ///< Log file
-
-	// Origin information:
-
-	struct server *server;              ///< Reference to server
-	struct channel *channel;            ///< Reference to channel
-	struct user *user;                  ///< Reference to user
-};
-
-static struct ispect_field g_server_ispect[];
-static struct ispect_field g_buffer_ispect[] =
-{
-	ISPECT( buffer, name,                  STRING )
-	ISPECT( buffer, new_messages_count,    UINT   )
-	ISPECT( buffer, new_unimportant_count, UINT   )
-	ISPECT( buffer, highlighted,           BOOL   )
-	ISPECT( buffer, hide_unimportant,      BOOL   )
-	ISPECT_REF( buffer, server,  false, server    )
-	ISPECT_REF( buffer, channel, false, channel   )
-	ISPECT_REF( buffer, user,    false, user      )
-	{}
-};
-
-static struct buffer *
-buffer_new (struct input *input, enum buffer_type type, char *name)
-{
-	struct buffer *self = xcalloc (1, sizeof *self);
-	self->ref_count = 1;
-	self->input = input;
-	self->input_data = CALL (input, buffer_new);
-	self->type = type;
-	self->name = name;
-	return self;
-}
-
-static void
-buffer_destroy (struct buffer *self)
-{
-	free (self->name);
-	if (self->input_data)
-	{
-#ifdef HAVE_READLINE
-		// FIXME: can't really free "history" contents from here, as we cannot
-		//   be sure that the user interface pointer is valid and usable
-		input_rl__buffer_destroy_wo_history (self->input_data);
-#else // ! HAVE_READLINE
-		CALL_ (self->input, buffer_destroy, self->input_data);
-#endif // ! HAVE_READLINE
-	}
-	LIST_FOR_EACH (struct buffer_line, iter, self->lines)
-		buffer_line_destroy (iter);
-	if (self->log_file)
-		(void) fclose (self->log_file);
-	if (self->user)
-		user_unref (self->user);
-	if (self->channel)
-		channel_unref (self->channel);
-	free (self);
-}
-
-REF_COUNTABLE_METHODS (buffer)
-#define buffer_ref do_not_use_dangerous
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-// The only real purpose of this is to abstract away TLS
-struct transport
-{
-	/// Initialize the transport
-	bool (*init) (struct server *s, const char *hostname, struct error **e);
-	/// Destroy the user data pointer
-	void (*cleanup) (struct server *s);
-
-	/// The underlying socket may have become readable, update `read_buffer'
-	enum socket_io_result (*try_read) (struct server *s);
-	/// The underlying socket may have become writeable, flush `write_buffer'
-	enum socket_io_result (*try_write) (struct server *s);
-	/// Return event mask to use in the poller
-	int (*get_poll_events) (struct server *s);
-
-	/// Called just before closing the connection from our side
-	void (*in_before_shutdown) (struct server *s);
-};
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-enum server_state
-{
-	IRC_DISCONNECTED,                   ///< Not connected
-	IRC_CONNECTING,                     ///< Connecting to the server
-	IRC_CONNECTED,                      ///< Trying to register
-	IRC_REGISTERED,                     ///< We can chat now
-	IRC_CLOSING,                        ///< Flushing output before shutdown
-	IRC_HALF_CLOSED                     ///< Connection shutdown from our side
-};
-
-/// Convert an IRC identifier character to lower-case
-typedef int (*irc_tolower_fn) (int);
-
-/// Key conversion function for hashmap lookups
-typedef size_t (*irc_strxfrm_fn) (char *, const char *, size_t);
-
-struct server
-{
-	REF_COUNTABLE_HEADER
-	struct app_context *ctx;            ///< Application context
-
-	char *name;                         ///< Server identifier
-	struct buffer *buffer;              ///< The buffer for this server
-	struct config_item *config;         ///< Configuration root
-
-	// Connection:
-
-	enum server_state state;            ///< Connection state
-	struct connector *connector;        ///< Connection establisher
-	struct socks_connector *socks_conn; ///< SOCKS connection establisher
-	unsigned reconnect_attempt;         ///< Number of reconnect attempt
-	bool manual_disconnect;             ///< Don't reconnect after disconnect
-
-	int socket;                         ///< Socket FD of the server
-	struct str read_buffer;             ///< Input yet to be processed
-	struct str write_buffer;            ///< Outut yet to be be sent out
-	struct poller_fd socket_event;      ///< We can read from the socket
-
-	struct transport *transport;        ///< Transport method
-	void *transport_data;               ///< Transport data
-
-	// Events:
-
-	struct poller_timer ping_tmr;       ///< We should send a ping
-	struct poller_timer timeout_tmr;    ///< Connection seems to be dead
-	struct poller_timer reconnect_tmr;  ///< We should reconnect now
-	struct poller_timer autojoin_tmr;   ///< Re/join channels as appropriate
-
-	// IRC:
-
-	// TODO: an output queue to prevent excess floods (this will be needed
-	//   especially for away status polling)
-
-	bool rehashing;                     ///< Rehashing IRC identifiers
-
-	struct str_map irc_users;           ///< IRC user data
-	struct str_map irc_channels;        ///< IRC channel data
-	struct str_map irc_buffer_map;      ///< Maps IRC identifiers to buffers
-
-	struct user *irc_user;              ///< Our own user
-	int nick_counter;                   ///< Iterates "nicks" when registering
-	struct str irc_user_mode;           ///< Our current user modes
-	char *irc_user_host;                ///< Our current user@host
-	bool autoaway_active;               ///< Autoaway is currently active
-
-	struct strv cap_ls_buf;             ///< Buffer for IRCv3.2 CAP LS
-	bool cap_echo_message;              ///< Whether the server echoes messages
-	bool cap_away_notify;               ///< Whether we get AWAY notifications
-	bool cap_sasl;                      ///< Whether SASL is available
-
-	// Server-specific information (from RPL_ISUPPORT):
-
-	irc_tolower_fn irc_tolower;         ///< Server tolower()
-	irc_strxfrm_fn irc_strxfrm;         ///< Server strxfrm()
-
-	char *irc_chantypes;                ///< Channel types (name prefixes)
-	char *irc_idchan_prefixes;          ///< Prefixes for "safe channels"
-	char *irc_statusmsg;                ///< Prefixes for channel targets
-
-	char irc_extban_prefix;             ///< EXTBAN prefix or \0
-	char *irc_extban_types;             ///< EXTBAN types
-
-	char *irc_chanmodes_list;           ///< Channel modes for lists
-	char *irc_chanmodes_param_always;   ///< Channel modes with mandatory param
-	char *irc_chanmodes_param_when_set; ///< Channel modes with param when set
-	char *irc_chanmodes_param_never;    ///< Channel modes without param
-
-	char *irc_chanuser_prefixes;        ///< Channel user prefixes
-	char *irc_chanuser_modes;           ///< Channel user modes
-
-	unsigned irc_max_modes;             ///< Max parametrized modes per command
-};
-
-static struct ispect_field g_server_ispect[] =
-{
-	ISPECT( server, name,              STRING )
-	ISPECT( server, state,             INT    )
-	ISPECT( server, reconnect_attempt, UINT   )
-	ISPECT( server, manual_disconnect, BOOL   )
-	ISPECT( server, irc_user_host,     STRING )
-	ISPECT( server, autoaway_active,   BOOL   )
-	ISPECT( server, cap_echo_message,  BOOL   )
-	ISPECT_REF( server, buffer, false, buffer )
-
-	// TODO: either rename the underlying field or fix the plugins
-	{ "user",      offsetof (struct server, irc_user),
-	  ISPECT_REF, 0, g_user_ispect, false },
-	{ "user_mode", offsetof (struct server, irc_user_mode),
-	  ISPECT_STR, 0, NULL, false },
-
-	{}
-};
-
-static void on_irc_timeout (void *user_data);
-static void on_irc_ping_timeout (void *user_data);
-static void on_irc_autojoin_timeout (void *user_data);
-static void irc_initiate_connect (struct server *s);
-
-static void
-server_init_specifics (struct server *self)
-{
-	// Defaults as per the RPL_ISUPPORT drafts, or RFC 1459
-
-	self->irc_tolower                   = irc_tolower;
-	self->irc_strxfrm                   = irc_strxfrm;
-
-	self->irc_chantypes                 = xstrdup ("#&");
-	self->irc_idchan_prefixes           = xstrdup ("");
-	self->irc_statusmsg                 = xstrdup ("");
-
-	self->irc_extban_prefix             = 0;
-	self->irc_extban_types              = xstrdup ("");
-
-	self->irc_chanmodes_list            = xstrdup ("b");
-	self->irc_chanmodes_param_always    = xstrdup ("k");
-	self->irc_chanmodes_param_when_set  = xstrdup ("l");
-	self->irc_chanmodes_param_never     = xstrdup ("imnpst");
-
-	self->irc_chanuser_prefixes         = xstrdup ("@+");
-	self->irc_chanuser_modes            = xstrdup ("ov");
-
-	self->irc_max_modes                 = 3;
-}
-
-static void
-server_free_specifics (struct server *self)
-{
-	free (self->irc_chantypes);
-	free (self->irc_idchan_prefixes);
-	free (self->irc_statusmsg);
-
-	free (self->irc_extban_types);
-
-	free (self->irc_chanmodes_list);
-	free (self->irc_chanmodes_param_always);
-	free (self->irc_chanmodes_param_when_set);
-	free (self->irc_chanmodes_param_never);
-
-	free (self->irc_chanuser_prefixes);
-	free (self->irc_chanuser_modes);
-}
-
-static struct server *
-server_new (struct poller *poller)
-{
-	struct server *self = xcalloc (1, sizeof *self);
-	self->ref_count = 1;
-
-	self->socket = -1;
-	self->read_buffer = str_make ();
-	self->write_buffer = str_make ();
-	self->state = IRC_DISCONNECTED;
-
-	self->timeout_tmr = poller_timer_make (poller);
-	self->timeout_tmr.dispatcher = on_irc_timeout;
-	self->timeout_tmr.user_data = self;
-
-	self->ping_tmr = poller_timer_make (poller);
-	self->ping_tmr.dispatcher = on_irc_ping_timeout;
-	self->ping_tmr.user_data = self;
-
-	self->reconnect_tmr = poller_timer_make (poller);
-	self->reconnect_tmr.dispatcher = (poller_timer_fn) irc_initiate_connect;
-	self->reconnect_tmr.user_data = self;
-
-	self->autojoin_tmr = poller_timer_make (poller);
-	self->autojoin_tmr.dispatcher = on_irc_autojoin_timeout;
-	self->autojoin_tmr.user_data = self;
-
-	self->irc_users = str_map_make (NULL);
-	self->irc_users.key_xfrm = irc_strxfrm;
-	self->irc_channels = str_map_make (NULL);
-	self->irc_channels.key_xfrm = irc_strxfrm;
-	self->irc_buffer_map = str_map_make (NULL);
-	self->irc_buffer_map.key_xfrm = irc_strxfrm;
-
-	self->irc_user_mode = str_make ();
-
-	self->cap_ls_buf = strv_make ();
-	server_init_specifics (self);
-	return self;
-}
-
-static void
-server_destroy (struct server *self)
-{
-	free (self->name);
-
-	if (self->connector)
-	{
-		connector_free (self->connector);
-		free (self->connector);
-	}
-	if (self->socks_conn)
-	{
-		socks_connector_free (self->socks_conn);
-		free (self->socks_conn);
-	}
-
-	if (self->transport
-	 && self->transport->cleanup)
-		self->transport->cleanup (self);
-
-	if (self->socket != -1)
-	{
-		poller_fd_reset (&self->socket_event);
-		xclose (self->socket);
-	}
-	str_free (&self->read_buffer);
-	str_free (&self->write_buffer);
-
-	poller_timer_reset (&self->ping_tmr);
-	poller_timer_reset (&self->timeout_tmr);
-	poller_timer_reset (&self->reconnect_tmr);
-	poller_timer_reset (&self->autojoin_tmr);
-
-	str_map_free (&self->irc_users);
-	str_map_free (&self->irc_channels);
-	str_map_free (&self->irc_buffer_map);
-
-	if (self->irc_user)
-		user_unref (self->irc_user);
-	str_free (&self->irc_user_mode);
-	free (self->irc_user_host);
-
-	strv_free (&self->cap_ls_buf);
-	server_free_specifics (self);
-	free (self);
-}
-
-REF_COUNTABLE_METHODS (server)
-#define server_ref do_not_use_dangerous
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-struct plugin
-{
-	LIST_HEADER (struct plugin)
-
-	char *name;                         ///< Name of the plugin
-	struct plugin_vtable *vtable;       ///< Methods
-};
-
-struct plugin_vtable
-{
-	/// Collect garbage
-	void (*gc) (struct plugin *self);
-	/// Unregister and free the plugin including all relevant resources
-	void (*free) (struct plugin *self);
-};
-
-static void
-plugin_destroy (struct plugin *self)
-{
-	self->vtable->free (self);
-	free (self->name);
-	free (self);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-// This is a bit ugly since insertion is O(n) and the need to get rid of the
-// specific type because of list macros, however I don't currently posses any
-// strictly better, ordered data structure
-
-struct hook
-{
-	LIST_HEADER (struct hook)
-	int priority;                       ///< The lesser the sooner
-};
-
-static struct hook *
-hook_insert (struct hook *list, struct hook *item)
-{
-	// Corner cases: list is empty or we precede everything
-	if (!list || item->priority < list->priority)
-	{
-		LIST_PREPEND (list, item);
-		return list;
-	}
-
-	// Otherwise fast-forward to the last entry that precedes us
-	struct hook *before = list;
-	while (before->next && before->next->priority < item->priority)
-		before = before->next;
-
-	// And link ourselves in between it and its successor
-	if ((item->next = before->next))
-		item->next->prev = item;
-	before->next = item;
-	item->prev = before;
-	return list;
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-struct input_hook
-{
-	struct hook super;                  ///< Common hook fields
-
-	/// Takes over the ownership of "input", returns either NULL if input
-	/// was thrown away, or a possibly modified version of it
-	char *(*filter) (struct input_hook *self,
-		struct buffer *buffer, char *input);
-};
-
-struct irc_hook
-{
-	struct hook super;                  ///< Common hook fields
-
-	/// Takes over the ownership of "message", returns either NULL if message
-	/// was thrown away, or a possibly modified version of it
-	char *(*filter) (struct irc_hook *self,
-		struct server *server, char *message);
-};
-
-struct prompt_hook
-{
-	struct hook super;                  ///< Common hook fields
-
-	/// Returns what the prompt should look like right now based on other state
-	char *(*make) (struct prompt_hook *self);
-};
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-struct completion_word
-{
-	size_t start;                       ///< Offset to start of word
-	size_t end;                         ///< Offset to end of word
-};
-
-struct completion
-{
-	char *line;                         ///< The line which is being completed
-
-	struct completion_word *words;      ///< Word locations
-	size_t words_len;                   ///< Number of words
-	size_t words_alloc;                 ///< Number of words allocated
-
-	size_t location;                    ///< Which word is being completed
-};
-
-struct completion_hook
-{
-	struct hook super;                  ///< Common hook fields
-
-	/// Tries to add possible completions of "word" to "output"
-	void (*complete) (struct completion_hook *self,
-		struct completion *data, const char *word, struct strv *output);
-};
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-struct app_context
-{
-	char *attrs_defaults[ATTR_COUNT];   ///< Default terminal attributes
-
-	// Configuration:
-
-	struct config config;               ///< Program configuration
-	char *attrs[ATTR_COUNT];            ///< Terminal attributes
-	bool isolate_buffers;               ///< Isolate global/server buffers
-	bool beep_on_highlight;             ///< Beep on highlight
-	bool logging;                       ///< Logging to file enabled
-	bool show_all_prefixes;             ///< Show all prefixes before nicks
-	bool word_wrapping;                 ///< Enable simple word wrapping
-
-	struct str_map servers;             ///< Our servers
-
-	// Events:
-
-	struct poller_fd tty_event;         ///< Terminal input event
-	struct poller_fd signal_event;      ///< Signal FD event
-
-	struct poller_timer flush_timer;    ///< Flush all open files (e.g. logs)
-	struct poller_timer date_chg_tmr;   ///< Print a date change
-	struct poller_timer autoaway_tmr;   ///< Autoaway timer
-
-	struct poller poller;               ///< Manages polled descriptors
-	bool quitting;                      ///< User requested quitting
-	bool polling;                       ///< The event loop is running
-
-	// Buffers:
-
-	struct buffer *buffers;             ///< All our buffers in order
-	struct buffer *buffers_tail;        ///< The tail of our buffers
-
-	struct buffer *global_buffer;       ///< The global buffer
-	struct buffer *current_buffer;      ///< The current buffer
-	struct buffer *last_buffer;         ///< Last used buffer
-
-	struct str_map buffers_by_name;     ///< Buffers by name
-
-	unsigned backlog_limit;             ///< Limit for buffer lines
-	time_t last_displayed_msg_time;     ///< Time of last displayed message
-
-	// Terminal:
-
-	iconv_t term_to_utf8;               ///< Terminal encoding to UTF-8
-	iconv_t term_from_utf8;             ///< UTF-8 to terminal encoding
-
-	struct input *input;                ///< User interface
-
-	struct poller_idle prompt_event;    ///< Deferred prompt refresh
-	struct poller_idle input_event;     ///< Pending input event
-	struct strv pending_input;          ///< Pending input lines
-
-	int *nick_palette;                  ///< A 256-colour palette for nicknames
-	size_t nick_palette_len;            ///< Number of entries in nick_palette
-
-	bool awaiting_mirc_escape;          ///< Awaiting a mIRC attribute escape
-	bool in_bracketed_paste;            ///< User is pasting some content
-	struct str input_buffer;            ///< Buffered pasted content
-
-	bool running_backlog_helper;        ///< Running a backlog helper
-	bool running_editor;                ///< Running editor for the input
-	char *editor_filename;              ///< The file being edited by user
-	int terminal_suspended;             ///< Terminal suspension level
-
-	struct plugin *plugins;             ///< Loaded plugins
-	struct hook *input_hooks;           ///< Input hooks
-	struct hook *irc_hooks;             ///< IRC hooks
-	struct hook *prompt_hooks;          ///< Prompt hooks
-	struct hook *completion_hooks;      ///< Autocomplete hooks
-}
-*g_ctx;
-
-static struct ispect_field g_ctx_ispect[] =
-{
-	ISPECT_MAP_REF( app_context, servers,    false, server )
-	ISPECT_REF( app_context, buffers,        true,  buffer )
-	ISPECT_REF( app_context, global_buffer,  false, buffer )
-	ISPECT_REF( app_context, current_buffer, false, buffer )
-	{}
-};
-
-static int *
-filter_color_cube_for_acceptable_nick_colors (size_t *len)
-{
-	// This is a pure function and we don't use threads, static storage is fine
-	static int table[6 * 6 * 6];
-	size_t len_counter = 0;
-	for (int x = 0; x < (int) N_ELEMENTS (table); x++)
-	{
-		int r =  x / 36;
-		int g = (x / 6) % 6;
-		int b = (x % 6);
-
-		// The first step is 95/255, the rest are 40/255,
-		// as an approximation we can double the first step
-		double linear_R = pow ((r + !!r) / 6., 2.2);
-		double linear_G = pow ((g + !!g) / 6., 2.2);
-		double linear_B = pow ((b + !!b) / 6., 2.2);
-
-		// Use the relative luminance of colours within the cube to filter
-		// colours that look okay-ish on terminals with both black and white
-		// backgrounds (use the test-nick-colors script to calibrate)
-		double Y = 0.2126 * linear_R + 0.7152 * linear_G + 0.0722 * linear_B;
-		if (Y >= .25 && Y <= .4)
-			table[len_counter++] = 16 + x;
-	}
-	*len = len_counter;
-	return table;
-}
-
-static bool
-app_iconv_open (iconv_t *target, const char *to, const char *from)
-{
-	if (ICONV_ACCEPTS_TRANSLIT)
-	{
-		char *to_real = xstrdup_printf ("%s//TRANSLIT", to);
-		*target = iconv_open (to_real, from);
-		free (to_real);
-	}
-	else
-		*target = iconv_open (to, from);
-	return *target != (iconv_t) -1;
-}
-
-static void
-app_context_init (struct app_context *self)
-{
-	memset (self, 0, sizeof *self);
-
-	self->config = config_make ();
-	poller_init (&self->poller);
-
-	self->servers = str_map_make ((str_map_free_fn) server_unref);
-	self->servers.key_xfrm = tolower_ascii_strxfrm;
-
-	self->buffers_by_name = str_map_make (NULL);
-	self->buffers_by_name.key_xfrm = tolower_ascii_strxfrm;
-
-	// So that we don't lose the logo shortly after startup
-	self->backlog_limit = 1000;
-	self->last_displayed_msg_time = time (NULL);
-
-	char *native = nl_langinfo (CODESET);
-	if (!app_iconv_open (&self->term_from_utf8, native, "UTF-8")
-	 || !app_iconv_open (&self->term_to_utf8, "UTF-8", native))
-		exit_fatal ("creating the UTF-8 conversion object failed: %s",
-			strerror (errno));
-
-	self->input = input_new ();
-	self->input->user_data = self;
-	self->pending_input = strv_make ();
-	self->input_buffer = str_make ();
-
-	self->nick_palette =
-		filter_color_cube_for_acceptable_nick_colors (&self->nick_palette_len);
-}
-
-static void
-app_context_free (struct app_context *self)
-{
-	// Plugins can try to use of the other fields when destroyed
-	LIST_FOR_EACH (struct plugin, iter, self->plugins)
-		plugin_destroy (iter);
-
-	config_free (&self->config);
-	for (size_t i = 0; i < ATTR_COUNT; i++)
-	{
-		free (self->attrs_defaults[i]);
-		free (self->attrs[i]);
-	}
-
-	LIST_FOR_EACH (struct buffer, iter, self->buffers)
-	{
-#ifdef HAVE_READLINE
-		// We can use the user interface here; see buffer_destroy()
-		CALL_ (self->input, buffer_destroy, iter->input_data);
-		iter->input_data = NULL;
-#endif // HAVE_READLINE
-		buffer_unref (iter);
-	}
-	str_map_free (&self->buffers_by_name);
-
-	str_map_free (&self->servers);
-	poller_free (&self->poller);
-
-	iconv_close (self->term_from_utf8);
-	iconv_close (self->term_to_utf8);
-
-	CALL (self->input, destroy);
-	strv_free (&self->pending_input);
-	str_free (&self->input_buffer);
-
-	free (self->editor_filename);
-}
-
-static void
-refresh_prompt (struct app_context *ctx)
-{
-	// XXX: the need for this conditional could probably be resolved
-	//   by some clever reordering
-	if (ctx->prompt_event.poller)
-		poller_idle_set (&ctx->prompt_event);
-}
-
-// --- Configuration -----------------------------------------------------------
-
-static void
-on_config_debug_mode_change (struct config_item *item)
-{
-	g_debug_mode = item->value.boolean;
-}
-
-static void
-on_config_show_all_prefixes_change (struct config_item *item)
-{
-	struct app_context *ctx = item->user_data;
-	ctx->show_all_prefixes = item->value.boolean;
-	refresh_prompt (ctx);
-}
-
-static void on_config_backlog_limit_change (struct config_item *item);
-static void on_config_attribute_change (struct config_item *item);
-static void on_config_logging_change (struct config_item *item);
-
-#define TRIVIAL_BOOLEAN_ON_CHANGE(name)                                        \
-	static void                                                                \
-	on_config_ ## name ## _change (struct config_item *item)                   \
-	{                                                                          \
-		struct app_context *ctx = item->user_data;                             \
-		ctx->name = item->value.boolean;                                       \
-	}
-
-TRIVIAL_BOOLEAN_ON_CHANGE (isolate_buffers)
-TRIVIAL_BOOLEAN_ON_CHANGE (beep_on_highlight)
-TRIVIAL_BOOLEAN_ON_CHANGE (word_wrapping)
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static bool
-config_validate_nonjunk_string
-	(const struct config_item *item, struct error **e)
-{
-	if (item->type == CONFIG_ITEM_NULL)
-		return true;
-
-	hard_assert (config_item_type_is_string (item->type));
-	for (size_t i = 0; i < item->value.string.len; i++)
-	{
-		// Not even a tabulator
-		unsigned char c = item->value.string.str[i];
-		if (iscntrl_ascii (c))
-		{
-			error_set (e, "control characters are not allowed");
-			return false;
-		}
-	}
-	return true;
-}
-
-static bool
-config_validate_addresses
-	(const struct config_item *item, struct error **e)
-{
-	if (item->type == CONFIG_ITEM_NULL)
-		return true;
-	if (!config_validate_nonjunk_string (item, e))
-		return false;
-
-	// Comma-separated list of "host[:port]" pairs
-	regex_t re;
-	int err = regcomp (&re, "^([^/:,]+(:[^/:,]+)?)?"
-		"(,([^/:,]+(:[^/:,]+)?)?)*$", REG_EXTENDED | REG_NOSUB);
-	hard_assert (!err);
-
-	bool result = !regexec (&re, item->value.string.str, 0, NULL, 0);
-	if (!result)
-		error_set (e, "invalid address list string");
-
-	regfree (&re);
-	return result;
-}
-
-static bool
-config_validate_nonnegative
-	(const struct config_item *item, struct error **e)
-{
-	if (item->type == CONFIG_ITEM_NULL)
-		return true;
-
-	hard_assert (item->type == CONFIG_ITEM_INTEGER);
-	if (item->value.integer >= 0)
-		return true;
-
-	error_set (e, "must be non-negative");
-	return false;
-}
-
-static struct config_schema g_config_server[] =
-{
-	{ .name      = "nicks",
-	  .comment   = "IRC nickname",
-	  .type      = CONFIG_ITEM_STRING_ARRAY,
-	  .validate  = config_validate_nonjunk_string },
-	{ .name      = "username",
-	  .comment   = "IRC user name",
-	  .type      = CONFIG_ITEM_STRING,
-	  .validate  = config_validate_nonjunk_string },
-	{ .name      = "realname",
-	  .comment   = "IRC real name/e-mail",
-	  .type      = CONFIG_ITEM_STRING,
-	  .validate  = config_validate_nonjunk_string },
-
-	{ .name      = "addresses",
-	  .comment   = "Addresses of the IRC network (e.g. \"irc.net:6667\")",
-	  .type      = CONFIG_ITEM_STRING_ARRAY,
-	  .validate  = config_validate_addresses },
-	{ .name      = "password",
-	  .comment   = "Password to connect to the server, if any",
-	  .type      = CONFIG_ITEM_STRING,
-	  .validate  = config_validate_nonjunk_string },
-	// XXX: if we add support for new capabilities, the value stays unchanged
-	{ .name      = "capabilities",
-	  .comment   = "Capabilities to use if supported by server",
-	  .type      = CONFIG_ITEM_STRING_ARRAY,
-	  .validate  = config_validate_nonjunk_string,
-	  .default_  = "\"multi-prefix,invite-notify,server-time,echo-message,"
-		"message-tags,away-notify,cap-notify,chghost\"" },
-
-	{ .name      = "tls",
-	  .comment   = "Whether to use TLS",
-	  .type      = CONFIG_ITEM_BOOLEAN,
-	  .default_  = "off" },
-	{ .name      = "tls_cert",
-	  .comment   = "Client TLS certificate (PEM)",
-	  .type      = CONFIG_ITEM_STRING },
-	{ .name      = "tls_verify",
-	  .comment   = "Whether to verify certificates",
-	  .type      = CONFIG_ITEM_BOOLEAN,
-	  .default_  = "on" },
-	{ .name      = "tls_ca_file",
-	  .comment   = "OpenSSL CA bundle file",
-	  .type      = CONFIG_ITEM_STRING },
-	{ .name      = "tls_ca_path",
-	  .comment   = "OpenSSL CA bundle path",
-	  .type      = CONFIG_ITEM_STRING },
-	{ .name      = "tls_ciphers",
-	  .comment   = "OpenSSL cipher preference list",
-	  .type      = CONFIG_ITEM_STRING,
-	  .default_  = "\"DEFAULT:!MEDIUM:!LOW\"" },
-
-	{ .name      = "autoconnect",
-	  .comment   = "Connect automatically on startup",
-	  .type      = CONFIG_ITEM_BOOLEAN,
-	  .default_  = "on" },
-	{ .name      = "autojoin",
-	  .comment   = "Channels to join on start (e.g. \"#abc,#def key,#ghi\")",
-	  .type      = CONFIG_ITEM_STRING_ARRAY,
-	  .validate  = config_validate_nonjunk_string },
-	{ .name      = "command",
-	  .comment   = "Command to execute after a successful connect",
-	  .type      = CONFIG_ITEM_STRING },
-	{ .name      = "command_delay",
-	  .comment   = "Delay between executing \"command\" and joining channels",
-	  .type      = CONFIG_ITEM_INTEGER,
-	  .validate  = config_validate_nonnegative,
-	  .default_  = "0" },
-	{ .name      = "reconnect",
-	  .comment   = "Whether to reconnect on error",
-	  .type      = CONFIG_ITEM_BOOLEAN,
-	  .default_  = "on" },
-	{ .name      = "reconnect_delay",
-	  .comment   = "Time between reconnecting",
-	  .type      = CONFIG_ITEM_INTEGER,
-	  .validate  = config_validate_nonnegative,
-	  .default_  = "5" },
-
-	{ .name      = "socks_host",
-	  .comment   = "Address of a SOCKS 4a/5 proxy",
-	  .type      = CONFIG_ITEM_STRING,
-	  .validate  = config_validate_nonjunk_string },
-	{ .name      = "socks_port",
-	  .comment   = "SOCKS port number",
-	  .type      = CONFIG_ITEM_INTEGER,
-	  .validate  = config_validate_nonnegative,
-	  .default_  = "1080" },
-	{ .name      = "socks_username",
-	  .comment   = "SOCKS auth. username",
-	  .type      = CONFIG_ITEM_STRING },
-	{ .name      = "socks_password",
-	  .comment   = "SOCKS auth. password",
-	  .type      = CONFIG_ITEM_STRING },
-	{}
-};
-
-static struct config_schema g_config_behaviour[] =
-{
-	{ .name      = "isolate_buffers",
-	  .comment   = "Don't leak messages from the server and global buffers",
-	  .type      = CONFIG_ITEM_BOOLEAN,
-	  .default_  = "off",
-	  .on_change = on_config_isolate_buffers_change },
-	{ .name      = "beep_on_highlight",
-	  .comment   = "Beep when highlighted or on a new invisible PM",
-	  .type      = CONFIG_ITEM_BOOLEAN,
-	  .default_  = "on",
-	  .on_change = on_config_beep_on_highlight_change },
-	{ .name      = "show_all_prefixes",
-	  .comment   = "Show all prefixes in front of nicknames",
-	  .type      = CONFIG_ITEM_BOOLEAN,
-	  .default_  = "off",
-	  .on_change = on_config_show_all_prefixes_change },
-	{ .name      = "word_wrapping",
-	  .comment   = "Enable simple word wrapping in buffers",
-	  .type      = CONFIG_ITEM_BOOLEAN,
-	  .default_  = "on",
-	  .on_change = on_config_word_wrapping_change },
-	{ .name      = "date_change_line",
-	  .comment   = "Input to strftime(3) for the date change line",
-	  .type      = CONFIG_ITEM_STRING,
-	  .default_  = "\"%F\"" },
-	{ .name      = "read_marker_char",
-	  .comment   = "The character to use for the read marker line",
-	  .type      = CONFIG_ITEM_STRING,
-	  .default_  = "\"-\"",
-	  .validate  = config_validate_nonjunk_string },
-	{ .name      = "logging",
-	  .comment   = "Log buffer contents to file",
-	  .type      = CONFIG_ITEM_BOOLEAN,
-	  .default_  = "off",
-	  .on_change = on_config_logging_change },
-	{ .name      = "save_on_quit",
-	  .comment   = "Save configuration before quitting",
-	  .type      = CONFIG_ITEM_BOOLEAN,
-	  .default_  = "on" },
-	{ .name      = "debug_mode",
-	  .comment   = "Produce some debugging output",
-	  .type      = CONFIG_ITEM_BOOLEAN,
-	  .default_  = "off",
-	  .on_change = on_config_debug_mode_change },
-
-	{ .name      = "backlog_limit",
-	  .comment   = "Maximum number of lines stored in the backlog",
-	  .type      = CONFIG_ITEM_INTEGER,
-	  .validate  = config_validate_nonnegative,
-	  .default_  = "1000",
-	  .on_change = on_config_backlog_limit_change },
-	{ .name      = "backlog_helper",
-	  .comment   = "Shell command to display a buffer's history",
-	  .type      = CONFIG_ITEM_STRING,
-	  .default_  = "\"LESSSECURE=1 less -M -R +Gb\"" },
-	{ .name      = "backlog_helper_strip_formatting",
-	  .comment   = "Strip formatting from backlog helper input",
-	  .type      = CONFIG_ITEM_BOOLEAN,
-	  .default_  = "off" },
-
-	{ .name      = "reconnect_delay_growing",
-	  .comment   = "Growing factor for reconnect delay",
-	  .type      = CONFIG_ITEM_INTEGER,
-	  .validate  = config_validate_nonnegative,
-	  .default_  = "2" },
-	{ .name      = "reconnect_delay_max",
-	  .comment   = "Maximum reconnect delay in seconds",
-	  .type      = CONFIG_ITEM_INTEGER,
-	  .validate  = config_validate_nonnegative,
-	  .default_  = "600" },
-
-	{ .name      = "autoaway_message",
-	  .comment   = "Automated away message",
-	  .type      = CONFIG_ITEM_STRING,
-	  .default_  = "\"I'm not here right now\"" },
-	{ .name      = "autoaway_delay",
-	  .comment   = "Delay from the last keypress in seconds",
-	  .type      = CONFIG_ITEM_INTEGER,
-	  .validate  = config_validate_nonnegative,
-	  .default_  = "1800" },
-
-	{ .name      = "plugin_autoload",
-	  .comment   = "Plugins to automatically load on start",
-	  .type      = CONFIG_ITEM_STRING_ARRAY,
-	  .validate  = config_validate_nonjunk_string },
-	{}
-};
-
-static struct config_schema g_config_attributes[] =
-{
-#define XX(x, y, z) { .name = #y, .comment = #z, .type = CONFIG_ITEM_STRING, \
-	.on_change = on_config_attribute_change },
-	ATTR_TABLE (XX)
-#undef XX
-	{}
-};
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-load_config_behaviour (struct config_item *subtree, void *user_data)
-{
-	config_schema_apply_to_object (g_config_behaviour,  subtree, user_data);
-}
-
-static void
-load_config_attributes (struct config_item *subtree, void *user_data)
-{
-	config_schema_apply_to_object (g_config_attributes, subtree, user_data);
-}
-
-static void
-register_config_modules (struct app_context *ctx)
-{
-	struct config *config = &ctx->config;
-	// The servers are loaded later when we can create buffers for them
-	config_register_module (config, "servers",    NULL, NULL);
-	config_register_module (config, "aliases",    NULL, NULL);
-	config_register_module (config, "plugins",    NULL, NULL);
-	config_register_module (config, "behaviour",  load_config_behaviour,  ctx);
-	config_register_module (config, "attributes", load_config_attributes, ctx);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static const char *
-get_config_string (struct config_item *root, const char *key)
-{
-	struct config_item *item = config_item_get (root, key, NULL);
-	hard_assert (item);
-	if (item->type == CONFIG_ITEM_NULL)
-		return NULL;
-	hard_assert (config_item_type_is_string (item->type));
-	return item->value.string.str;
-}
-
-static bool
-set_config_string
-	(struct config_item *root, const char *key, const char *value)
-{
-	struct config_item *item = config_item_get (root, key, NULL);
-	hard_assert (item);
-
-	struct config_item *new_ = config_item_string_from_cstr (value);
-	struct error *e = NULL;
-	if (config_item_set_from (item, new_, &e))
-		return true;
-
-	config_item_destroy (new_);
-	print_error ("couldn't set `%s' in configuration: %s", key, e->message);
-	error_free (e);
-	return false;
-}
-
-static int64_t
-get_config_integer (struct config_item *root, const char *key)
-{
-	struct config_item *item = config_item_get (root, key, NULL);
-	hard_assert (item && item->type == CONFIG_ITEM_INTEGER);
-	return item->value.integer;
-}
-
-static bool
-get_config_boolean (struct config_item *root, const char *key)
-{
-	struct config_item *item = config_item_get (root, key, NULL);
-	hard_assert (item && item->type == CONFIG_ITEM_BOOLEAN);
-	return item->value.boolean;
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static struct str_map *
-get_servers_config (struct app_context *ctx)
-{
-	return &config_item_get (ctx->config.root, "servers", NULL)->value.object;
-}
-
-static struct str_map *
-get_aliases_config (struct app_context *ctx)
-{
-	return &config_item_get (ctx->config.root, "aliases", NULL)->value.object;
-}
-
-static struct str_map *
-get_plugins_config (struct app_context *ctx)
-{
-	return &config_item_get (ctx->config.root, "plugins", NULL)->value.object;
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-serialize_configuration (struct config_item *root, struct str *output)
-{
-	str_append (output,
-		"# " PROGRAM_NAME " " PROGRAM_VERSION " configuration file\n"
-		"#\n"
-		"# Relative paths are searched for in ${XDG_CONFIG_HOME:-~/.config}\n"
-		"# /" PROGRAM_NAME " as well as in $XDG_CONFIG_DIRS/" PROGRAM_NAME "\n"
-		"#\n"
-		"# Everything is in UTF-8.  Any custom comments will be overwritten.\n"
-		"\n");
-
-	config_item_write (root, true, output);
-}
-
-// --- Terminal output ---------------------------------------------------------
-
-/// Default colour pair
-#define COLOR_DEFAULT -1
-
-/// Bright versions of the basic colour set
-#define COLOR_BRIGHT(x) (COLOR_ ## x + 8)
-
-/// Builds a colour pair for 256-colour terminals with a 16-colour backup value
-#define COLOR_256(name, c256) \
-	(((COLOR_ ## name) & 0xFFFF) | (((c256) & 0xFFFF) << 16))
-
-typedef int (*terminal_printer_fn) (int);
-
-static int
-putchar_stderr (int c)
-{
-	return fputc (c, stderr);
-}
-
-static terminal_printer_fn
-get_attribute_printer (FILE *stream)
-{
-	if (stream == stdout && g_terminal.stdout_is_tty)
-		return putchar;
-	if (stream == stderr && g_terminal.stderr_is_tty)
-		return putchar_stderr;
-	return NULL;
-}
-
-static void
-vprint_attributed (struct app_context *ctx,
-	FILE *stream, intptr_t attribute, const char *fmt, va_list ap)
-{
-	terminal_printer_fn printer = get_attribute_printer (stream);
-	if (!attribute)
-		printer = NULL;
-
-	if (printer)
-		tputs (ctx->attrs[attribute], 1, printer);
-
-	vfprintf (stream, fmt, ap);
-
-	if (printer)
-		tputs (ctx->attrs[ATTR_RESET], 1, printer);
-}
-
-static void
-print_attributed (struct app_context *ctx,
-	FILE *stream, intptr_t attribute, const char *fmt, ...)
-{
-	va_list ap;
-	va_start (ap, fmt);
-	vprint_attributed (ctx, stream, attribute, fmt, ap);
-	va_end (ap);
-}
-
-static void
-log_message_attributed (void *user_data, const char *quote, const char *fmt,
-	va_list ap)
-{
-	FILE *stream = stderr;
-	struct app_context *ctx = g_ctx;
-
-	CALL (ctx->input, hide);
-
-	print_attributed (ctx, stream, (intptr_t) user_data, "%s", quote);
-	vprint_attributed (ctx, stream, (intptr_t) user_data, fmt, ap);
-	fputs ("\n", stream);
-
-	CALL (ctx->input, show);
-}
-
-static ssize_t
-attr_by_name (const char *name)
-{
-	static const char *table[ATTR_COUNT] =
-	{
-#define XX(x, y, z) [ATTR_ ## x] = #y,
-		ATTR_TABLE (XX)
-#undef XX
-	};
-
-	for (size_t i = 0; i < N_ELEMENTS (table); i++)
-		if (!strcmp (name, table[i]))
-			return i;
-	return -1;
-}
-
-static void
-on_config_attribute_change (struct config_item *item)
-{
-	struct app_context *ctx = item->user_data;
-	ssize_t id = attr_by_name (item->schema->name);
-	if (id != -1)
-	{
-		cstr_set (&ctx->attrs[id], xstrdup (item->type == CONFIG_ITEM_NULL
-			? ctx->attrs_defaults[id]
-			: item->value.string.str));
-	}
-}
-
-static void
-init_colors (struct app_context *ctx)
-{
-	bool have_ti = init_terminal ();
-	char **defaults = ctx->attrs_defaults;
-
-#define INIT_ATTR(id, ti) defaults[ATTR_ ## id] = xstrdup (have_ti ? (ti) : "")
-
-	INIT_ATTR (PROMPT,      enter_bold_mode);
-	INIT_ATTR (RESET,       exit_attribute_mode);
-	INIT_ATTR (DATE_CHANGE, enter_bold_mode);
-	INIT_ATTR (READ_MARKER, g_terminal.color_set_fg[COLOR_MAGENTA]);
-	INIT_ATTR (WARNING,     g_terminal.color_set_fg[COLOR_YELLOW]);
-	INIT_ATTR (ERROR,       g_terminal.color_set_fg[COLOR_RED]);
-
-	INIT_ATTR (EXTERNAL,    g_terminal.color_set_fg[COLOR_WHITE]);
-	INIT_ATTR (TIMESTAMP,   g_terminal.color_set_fg[COLOR_WHITE]);
-	INIT_ATTR (ACTION,      g_terminal.color_set_fg[COLOR_RED]);
-	INIT_ATTR (USERHOST,    g_terminal.color_set_fg[COLOR_CYAN]);
-	INIT_ATTR (JOIN,        g_terminal.color_set_fg[COLOR_GREEN]);
-	INIT_ATTR (PART,        g_terminal.color_set_fg[COLOR_RED]);
-
-	char *highlight = have_ti ? xstrdup_printf ("%s%s%s",
-		g_terminal.color_set_fg[COLOR_YELLOW],
-		g_terminal.color_set_bg[COLOR_MAGENTA],
-		enter_bold_mode) : NULL;
-	INIT_ATTR (HIGHLIGHT, highlight);
-	free (highlight);
-
-#undef INIT_ATTR
-
-	// This prevents formatters from obtaining an attribute printer function
-	if (!have_ti)
-	{
-		g_terminal.stdout_is_tty = false;
-		g_terminal.stderr_is_tty = false;
-	}
-
-	g_log_message_real = log_message_attributed;
-
-	// Apply the default values so that we start with any formatting at all
-	config_schema_call_changed
-		(config_item_get (ctx->config.root, "attributes", NULL));
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-// A little tool that tries to make the most of the terminal's capabilities
-// to set up text attributes.  It mostly targets just terminal emulators as that
-// is what people are using these days.  At least no stupid ncurses limits us
-// with colour pairs.
-
-enum
-{
-	TEXT_BOLD        = 1 << 0,
-	TEXT_ITALIC      = 1 << 1,
-	TEXT_UNDERLINE   = 1 << 2,
-	TEXT_INVERSE     = 1 << 3,
-	TEXT_BLINK       = 1 << 4,
-	TEXT_CROSSED_OUT = 1 << 5
-};
-
-struct attr_printer
-{
-	char **attrs;                       ///< Named attributes
-	FILE *stream;                       ///< Output stream
-	bool dirty;                         ///< Attributes are set
-};
-
-#define ATTR_PRINTER_INIT(ctx, stream) { ctx->attrs, stream, true }
-
-static void
-attr_printer_filtered_puts (FILE *stream, const char *attr)
-{
-	for (; *attr; attr++)
-	{
-		// sgr/set_attributes and sgr0/exit_attribute_mode like to enable or
-		// disable the ACS with SO/SI (e.g. for TERM=screen), however `less -R`
-		// does not skip over these characters and it screws up word wrapping
-		if (*attr == 14 /* SO */ || *attr == 15 /* SI */)
-			continue;
-
-		// Trivially skip delay sequences intended to be processed by tputs()
-		const char *end = NULL;
-		if (attr[0] == '$' && attr[1] == '<' && (end = strchr (attr, '>')))
-			attr = end;
-		else
-			fputc (*attr, stream);
-	}
-}
-
-static void
-attr_printer_tputs (struct attr_printer *self, const char *attr)
-{
-	terminal_printer_fn printer = get_attribute_printer (self->stream);
-	if (printer)
-		tputs (attr, 1, printer);
-	else
-		// We shouldn't really do this but we need it to output formatting
-		// to the backlog helper--it should be SGR-only
-		attr_printer_filtered_puts (self->stream, attr);
-}
-
-static void
-attr_printer_reset (struct attr_printer *self)
-{
-	if (self->dirty)
-		attr_printer_tputs (self, self->attrs[ATTR_RESET]);
-
-	self->dirty = false;
-}
-
-static void
-attr_printer_apply_named (struct attr_printer *self, int attribute)
-{
-	attr_printer_reset (self);
-	if (attribute != ATTR_RESET)
-	{
-		attr_printer_tputs (self, self->attrs[attribute]);
-		self->dirty = true;
-	}
-}
-
-// NOTE: commonly terminals have:
-//   8 colours (worst, bright fg often with BOLD, bg sometimes with BLINK)
-//   16 colours (okayish, we have the full basic range guaranteed)
-//   88 colours (the same plus a 4^3 RGB cube and a few shades of grey)
-//   256 colours (best, like above but with a larger cube and more grey)
-
-/// Interpolate from the 256-colour palette to the 88-colour one
-static int
-attr_printer_256_to_88 (int color)
-{
-	// These colours are the same everywhere
-	if (color < 16)
-		return color;
-
-	// 24 -> 8 extra shades of grey
-	if (color >= 232)
-		return 80 + (color - 232) / 3;
-
-	// 6 * 6 * 6 cube -> 4 * 4 * 4 cube
-	int x[6] = { 0, 1, 1, 2, 2, 3 };
-	int index = color - 16;
-	return 16 +
-		( x[ index / 36      ] << 8
-		| x[(index /  6) % 6 ] << 4
-		| x[(index %  6)     ] );
-}
-
-static int
-attr_printer_decode_color (int color, bool *is_bright)
-{
-	int16_t c16  = color;        hard_assert (c16  < 16);
-	int16_t c256 = color >> 16;  hard_assert (c256 < 256);
-
-	*is_bright = false;
-	switch (max_colors)
-	{
-	case 8:
-		if (c16 >= 8)
-		{
-			c16 -= 8;
-			*is_bright = true;
-		}
-		// Fall-through
-	case 16:
-		return c16;
-
-	case 88:
-		return c256 <= 0 ? c16 : attr_printer_256_to_88 (c256);
-	case 256:
-		return c256 <= 0 ? c16 : c256;
-
-	default:
-		// Unsupported palette
-		return -1;
-	}
-}
-
-static void
-attr_printer_apply (struct attr_printer *self,
-	int text_attrs, int wanted_fg, int wanted_bg)
-{
-	bool fg_is_bright;
-	int fg = attr_printer_decode_color (wanted_fg, &fg_is_bright);
-	bool bg_is_bright;
-	int bg = attr_printer_decode_color (wanted_bg, &bg_is_bright);
-
-	bool have_inverse = !!(text_attrs & TEXT_INVERSE);
-	if (have_inverse)
-	{
-		bool tmp = fg_is_bright;
-		fg_is_bright = bg_is_bright;
-		bg_is_bright = tmp;
-	}
-
-	// In 8 colour mode, some terminals don't support bright backgrounds.
-	// However, we can make use of the fact that the brightness change caused
-	// by the bold attribute is retained when inverting the colours.
-	// This has the downside of making the text bold when it's not supposed
-	// to be, and we still can't make both colours bright, so it's more of
-	// an interesting hack rather than anything else.
-	if (!fg_is_bright && bg_is_bright && have_inverse)
-		text_attrs |= TEXT_BOLD;
-	else if (!fg_is_bright && bg_is_bright
-		&& !have_inverse && fg >= 0 && bg >= 0)
-	{
-		// As long as none of the colours is the default, we can swap them
-		int tmp = fg; fg = bg; bg = tmp;
-		text_attrs |= TEXT_BOLD | TEXT_INVERSE;
-	}
-	else
-	{
-		// This often works, however...
-		if (fg_is_bright) text_attrs |= TEXT_BOLD;
-		// this turns out to be annoying if implemented "correctly"
-		if (bg_is_bright) text_attrs |= TEXT_BLINK;
-	}
-
-	attr_printer_reset (self);
-
-	if (text_attrs)
-		attr_printer_tputs (self, tparm (set_attributes,
-			0,   // standout
-			text_attrs & TEXT_UNDERLINE,
-			text_attrs & TEXT_INVERSE,
-			text_attrs & TEXT_BLINK,
-			0,   // dim
-			text_attrs & TEXT_BOLD,
-			0,   // blank
-			0,   // protect
-			0)); // acs
-	if ((text_attrs & TEXT_ITALIC) && enter_italics_mode)
-		attr_printer_tputs (self, enter_italics_mode);
-
-	char *smxx = NULL;
-	if ((text_attrs & TEXT_CROSSED_OUT)
-	 && (smxx = tigetstr ("smxx")) && smxx != (char *) -1)
-		attr_printer_tputs (self, smxx);
-
-	if (fg >= 0)
-		attr_printer_tputs (self, g_terminal.color_set_fg[fg]);
-	if (bg >= 0)
-		attr_printer_tputs (self, g_terminal.color_set_bg[bg]);
-
-	self->dirty = true;
-}
-
-// --- Helpers -----------------------------------------------------------------
-
-static int
-irc_server_strcmp (struct server *s, const char *a, const char *b)
-{
-	int x;
-	while (*a || *b)
-		if ((x = s->irc_tolower (*a++) - s->irc_tolower (*b++)))
-			return x;
-	return 0;
-}
-
-static int
-irc_server_strncmp (struct server *s, const char *a, const char *b, size_t n)
-{
-	int x;
-	while (n-- && (*a || *b))
-		if ((x = s->irc_tolower (*a++) - s->irc_tolower (*b++)))
-			return x;
-	return 0;
-}
-
-static char *
-irc_cut_nickname (const char *prefix)
-{
-	return cstr_cut_until (prefix, "!@");
-}
-
-static const char *
-irc_find_userhost (const char *prefix)
-{
-	const char *p = strchr (prefix, '!');
-	return p ? p + 1 : NULL;
-}
-
-static bool
-irc_is_this_us (struct server *s, const char *prefix)
-{
-	// This shouldn't be called before successfully registering.
-	// Better safe than sorry, though.
-	if (!s->irc_user)
-		return false;
-
-	char *nick = irc_cut_nickname (prefix);
-	bool result = !irc_server_strcmp (s, nick, s->irc_user->nickname);
-	free (nick);
-	return result;
-}
-
-static bool
-irc_is_channel (struct server *s, const char *ident)
-{
-	return *ident
-		&& (!!strchr (s->irc_chantypes,       *ident) ||
-			!!strchr (s->irc_idchan_prefixes, *ident));
-}
-
-// Message targets can be prefixed by a character filtering their targets
-static const char *
-irc_skip_statusmsg (struct server *s, const char *target)
-{
-	return target + (*target && strchr (s->irc_statusmsg, *target));
-}
-
-static bool
-irc_is_extban (struct server *s, const char *target)
-{
-	// Some servers have a prefix, and some support negation
-	if (s->irc_extban_prefix && *target++ != s->irc_extban_prefix)
-		return false;
-	if (*target == '~')
-		target++;
-
-	// XXX: we don't know if it's supposed to have an argument, or not
-	return *target && strchr (s->irc_extban_types, *target++)
-		&& strchr (":\0", *target);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-// As of 2020, everything should be in UTF-8.  And if it's not, we'll decode it
-// as ISO Latin 1.  This function should not be called on the whole message.
-static char *
-irc_to_utf8 (const char *text)
-{
-	if (!text)
-		return NULL;
-
-	// XXX: the validation may be unnecessarily harsh, could do with a lenient
-	//   first pass, then replace any errors with the replacement character
-	size_t len = strlen (text) + 1;
-	if (utf8_validate (text, len))
-		return xstrdup (text);
-
-	// Windows 1252 redefines several silly C1 control characters as glyphs
-	static const char c1[32][4] =
-	{
-		"\xe2\x82\xac", "\xc2\x81",     "\xe2\x80\x9a", "\xc6\x92",
-		"\xe2\x80\x9e", "\xe2\x80\xa6", "\xe2\x80\xa0", "\xe2\x80\xa1",
-		"\xcb\x86",     "\xe2\x80\xb0", "\xc5\xa0",     "\xe2\x80\xb9",
-		"\xc5\x92",     "\xc2\x8d",     "\xc5\xbd",     "\xc2\x8f",
-		"\xc2\x90",     "\xe2\x80\x98", "\xe2\x80\x99", "\xe2\x80\x9c",
-		"\xe2\x80\x9d", "\xe2\x80\xa2", "\xe2\x80\x93", "\xe2\x80\x94",
-		"\xcb\x9c",     "\xe2\x84\xa2", "\xc5\xa1",     "\xe2\x80\xba",
-		"\xc5\x93",     "\xc2\x9d",     "\xc5\xbe",     "\xc5\xb8",
-	};
-
-	struct str s = str_make ();
-	for (const char *p = text; *p; p++)
-	{
-		int c = *(unsigned char *) p;
-		if (c < 0x80)
-			str_append_c (&s, c);
-		else if (c < 0xA0)
-			str_append (&s, c1[c & 0x1f]);
-		else
-			str_append_data (&s,
-				(char[]) {0xc0 | (c >> 6), 0x80 | (c & 0x3f)}, 2);
-	}
-	return str_steal (&s);
-}
-
-// --- Output formatter --------------------------------------------------------
-
-// This complicated piece of code makes attributed text formatting simple.
-// We use a printf-inspired syntax to push attributes and text to the object,
-// then flush it either to a terminal, or a log file with formatting stripped.
-//
-// Format strings use a #-quoted notation, to differentiate from printf:
-//   #s inserts a string (expected to be in UTF-8)
-//   #d inserts a signed integer
-//   #l inserts a locale-encoded string
-//
-//   #S inserts a string from the server with unknown encoding
-//   #m inserts a mIRC-formatted string (auto-resets at boundaries)
-//   #n cuts the nickname from a string and automatically colours it
-//   #N is like #n but also appends userhost, if present
-//
-//   #a inserts named attributes (auto-resets)
-//   #r resets terminal attributes
-//   #c sets foreground colour
-//   #C sets background colour
-//
-// Modifiers:
-//    & free() the string argument after using it
-
-static void
-formatter_add_item (struct formatter *self, struct formatter_item template_)
-{
-	if (template_.text)
-		template_.text = xstrdup (template_.text);
-
-	if (self->items_len == self->items_alloc)
-		self->items = xreallocarray
-			(self->items, sizeof *self->items, (self->items_alloc <<= 1));
-	self->items[self->items_len++] = template_;
-}
-
-#define FORMATTER_ADD_ITEM(self, type_, ...) formatter_add_item ((self), \
-	(struct formatter_item) { .type = FORMATTER_ITEM_ ## type_, __VA_ARGS__ })
-
-#define FORMATTER_ADD_RESET(self) \
-	FORMATTER_ADD_ITEM ((self), ATTR, .attribute = ATTR_RESET)
-#define FORMATTER_ADD_TEXT(self, text_) \
-	FORMATTER_ADD_ITEM ((self), TEXT, .text = (text_))
-#define FORMATTER_ADD_SIMPLE(self, attribute_) \
-	FORMATTER_ADD_ITEM ((self), SIMPLE, .attribute = TEXT_ ## attribute_)
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-enum
-{
-	MIRC_WHITE,  MIRC_BLACK,    MIRC_BLUE,   MIRC_GREEN,
-	MIRC_L_RED,  MIRC_RED,      MIRC_PURPLE, MIRC_ORANGE,
-	MIRC_YELLOW, MIRC_L_GREEN,  MIRC_CYAN,   MIRC_L_CYAN,
-	MIRC_L_BLUE, MIRC_L_PURPLE, MIRC_GRAY,   MIRC_L_GRAY,
-};
-
-// We use estimates from the 16 colour terminal palette, or the 256 colour cube,
-// which is not always available.  The mIRC orange colour is only in the cube.
-
-static const int g_mirc_to_terminal[] =
-{
-	[MIRC_WHITE]    = COLOR_256 (BRIGHT (WHITE),  231),
-	[MIRC_BLACK]    = COLOR_256         (BLACK,    16),
-	[MIRC_BLUE]     = COLOR_256         (BLUE,     19),
-	[MIRC_GREEN]    = COLOR_256         (GREEN,    34),
-	[MIRC_L_RED]    = COLOR_256 (BRIGHT (RED),    196),
-	[MIRC_RED]      = COLOR_256         (RED,     124),
-	[MIRC_PURPLE]   = COLOR_256         (MAGENTA, 127),
-	[MIRC_ORANGE]   = COLOR_256 (BRIGHT (YELLOW), 214),
-	[MIRC_YELLOW]   = COLOR_256 (BRIGHT (YELLOW), 226),
-	[MIRC_L_GREEN]  = COLOR_256 (BRIGHT (GREEN),   46),
-	[MIRC_CYAN]     = COLOR_256         (CYAN,     37),
-	[MIRC_L_CYAN]   = COLOR_256 (BRIGHT (CYAN),    51),
-	[MIRC_L_BLUE]   = COLOR_256 (BRIGHT (BLUE),    21),
-	[MIRC_L_PURPLE] = COLOR_256 (BRIGHT (MAGENTA),201),
-	[MIRC_GRAY]     = COLOR_256 (BRIGHT (BLACK),  244),
-	[MIRC_L_GRAY]   = COLOR_256         (WHITE,   252),
-};
-
-// https://modern.ircdocs.horse/formatting.html
-// http://anti.teamidiot.de/static/nei/*/extended_mirc_color_proposal.html
-static const char g_extra_to_256[100 - 16] =
-{
-	 52,  94, 100,  58,  22,  29,  23,  24,  17,  54,  53,  89,
-	 88, 130, 142,  64,  28,  35,  30,  25,  18,  91,  90, 125,
-	124, 166, 184, 106,  34,  49,  37,  33,  19, 129, 127, 161,
-	196, 208, 226, 154,  46,  86 , 51,  75,  21, 171, 201, 198,
-	203, 215, 227, 191,  83, 122,  87, 111,  63, 177, 207, 205,
-	217, 223, 229, 193, 157, 158, 159, 153, 147, 183, 219, 212,
-	 16, 233, 235, 237, 239, 241, 244, 247, 250, 254, 231,  -1
-};
-
-static const char *
-formatter_parse_mirc_color (struct formatter *self, const char *s)
-{
-	if (!isdigit_ascii (*s))
-	{
-		FORMATTER_ADD_ITEM (self, FG_COLOR, .color = -1);
-		FORMATTER_ADD_ITEM (self, BG_COLOR, .color = -1);
-		return s;
-	}
-
-	int fg = *s++ - '0';
-	if (isdigit_ascii (*s))
-		fg = fg * 10 + (*s++ - '0');
-	if (fg < 16)
-		FORMATTER_ADD_ITEM (self, FG_COLOR, .color = g_mirc_to_terminal[fg]);
-	else
-		FORMATTER_ADD_ITEM (self, FG_COLOR,
-			.color = COLOR_256 (DEFAULT, g_extra_to_256[fg]));
-
-	if (*s != ',' || !isdigit_ascii (s[1]))
-		return s;
-	s++;
-
-	int bg = *s++ - '0';
-	if (isdigit_ascii (*s))
-		bg = bg * 10 + (*s++ - '0');
-	if (bg < 16)
-		FORMATTER_ADD_ITEM (self, BG_COLOR, .color = g_mirc_to_terminal[bg]);
-	else
-		FORMATTER_ADD_ITEM (self, BG_COLOR,
-			.color = COLOR_256 (DEFAULT, g_extra_to_256[bg]));
-
-	return s;
-}
-
-static void
-formatter_parse_mirc (struct formatter *self, const char *s)
-{
-	FORMATTER_ADD_RESET (self);
-
-	struct str buf = str_make ();
-	unsigned char c;
-	while ((c = *s++))
-	{
-		if (buf.len && c < 0x20)
-		{
-			FORMATTER_ADD_TEXT (self, buf.str);
-			str_reset (&buf);
-		}
-
-		switch (c)
-		{
-		case '\x02': FORMATTER_ADD_SIMPLE (self, BOLD);        break;
-		case '\x11': /* monospace, N/A */                      break;
-		case '\x1d': FORMATTER_ADD_SIMPLE (self, ITALIC);      break;
-		case '\x1e': FORMATTER_ADD_SIMPLE (self, CROSSED_OUT); break;
-		case '\x1f': FORMATTER_ADD_SIMPLE (self, UNDERLINE);   break;
-		case '\x16': FORMATTER_ADD_SIMPLE (self, INVERSE);     break;
-
-		case '\x03':
-			s = formatter_parse_mirc_color (self, s);
-			break;
-		case '\x0f':
-			FORMATTER_ADD_RESET (self);
-			break;
-		default:
-			str_append_c (&buf, c);
-		}
-	}
-
-	if (buf.len)
-		FORMATTER_ADD_TEXT (self, buf.str);
-
-	str_free (&buf);
-	FORMATTER_ADD_RESET (self);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-formatter_parse_nick (struct formatter *self, const char *s)
-{
-	// For outgoing messages; maybe we should add a special #t for them
-	// which would also make us not cut off the userhost part, ever
-	if (irc_is_channel (self->s, irc_skip_statusmsg (self->s, s)))
-	{
-		char *tmp = irc_to_utf8 (s);
-		FORMATTER_ADD_TEXT (self, tmp);
-		free (tmp);
-		return;
-	}
-
-	char *nick = irc_cut_nickname (s);
-	int color = siphash_wrapper (nick, strlen (nick)) % 7;
-
-	// Never use the black colour, could become transparent on black terminals;
-	// white is similarly excluded from the range
-	if (color == COLOR_BLACK)
-		color = (uint16_t) -1;
-
-	// Use a colour from the 256-colour cube if available
-	color |= self->ctx->nick_palette[siphash_wrapper (nick,
-		strlen (nick)) % self->ctx->nick_palette_len] << 16;
-
-	// We always use the default colour for ourselves
-	if (self->s && irc_is_this_us (self->s, nick))
-		color = -1;
-
-	FORMATTER_ADD_ITEM (self, FG_COLOR, .color = color);
-
-	char *x = irc_to_utf8 (nick);
-	free (nick);
-	FORMATTER_ADD_TEXT (self, x);
-	free (x);
-
-	// Need to reset the colour afterwards
-	FORMATTER_ADD_ITEM (self, FG_COLOR, .color = -1);
-}
-
-static void
-formatter_parse_nick_full (struct formatter *self, const char *s)
-{
-	formatter_parse_nick (self, s);
-
-	const char *userhost;
-	if (!(userhost = irc_find_userhost (s)))
-		return;
-
-	FORMATTER_ADD_TEXT (self, " (");
-	FORMATTER_ADD_ITEM (self, ATTR, .attribute = ATTR_USERHOST);
-
-	char *x = irc_to_utf8 (userhost);
-	FORMATTER_ADD_TEXT (self, x);
-	free (x);
-
-	FORMATTER_ADD_RESET (self);
-	FORMATTER_ADD_TEXT (self, ")");
-}
-
-static const char *
-formatter_parse_field (struct formatter *self,
-	const char *field, struct str *buf, va_list *ap)
-{
-	bool free_string = false;
-	char *s = NULL;
-	char *tmp = NULL;
-	int c;
-
-restart:
-	switch ((c = *field++))
-	{
-		// We can push boring text content to the caller's buffer
-		// and let it flush the buffer only when it's actually needed
-	case 'd':
-		tmp = xstrdup_printf ("%d", va_arg (*ap, int));
-		str_append (buf, tmp);
-		free (tmp);
-		break;
-	case 's':
-		str_append (buf, (s = va_arg (*ap, char *)));
-		break;
-	case 'l':
-		if (!(tmp = iconv_xstrdup (self->ctx->term_to_utf8,
-			(s = va_arg (*ap, char *)), -1, NULL)))
-			print_error ("character conversion failed for: %s", "output");
-		else
-			str_append (buf, tmp);
-		free (tmp);
-		break;
-
-	case 'S':
-		tmp = irc_to_utf8 ((s = va_arg (*ap, char *)));
-		str_append (buf, tmp);
-		free (tmp);
-		break;
-	case 'm':
-		tmp = irc_to_utf8 ((s = va_arg (*ap, char *)));
-		formatter_parse_mirc (self, tmp);
-		free (tmp);
-		break;
-	case 'n':
-		formatter_parse_nick (self, (s = va_arg (*ap, char *)));
-		break;
-	case 'N':
-		formatter_parse_nick_full (self, (s = va_arg (*ap, char *)));
-		break;
-
-	case 'a':
-		FORMATTER_ADD_ITEM (self, ATTR, .attribute = va_arg (*ap, int));
-		break;
-	case 'c':
-		FORMATTER_ADD_ITEM (self, FG_COLOR, .color = va_arg (*ap, int));
-		break;
-	case 'C':
-		FORMATTER_ADD_ITEM (self, BG_COLOR, .color = va_arg (*ap, int));
-		break;
-	case 'r':
-		FORMATTER_ADD_RESET (self);
-		break;
-
-	default:
-		if (c == '&' && !free_string)
-			free_string = true;
-		else if (c)
-			hard_assert (!"unexpected format specifier");
-		else
-			hard_assert (!"unexpected end of format string");
-		goto restart;
-	}
-
-	if (free_string)
-		free (s);
-	return field;
-}
-
-// I was unable to take a pointer of a bare "va_list" when it was passed in
-// as a function argument, so it has to be a pointer from the beginning
-static void
-formatter_addv (struct formatter *self, const char *format, va_list *ap)
-{
-	struct str buf = str_make ();
-	while (*format)
-	{
-		if (*format != '#' || *++format == '#')
-		{
-			str_append_c (&buf, *format++);
-			continue;
-		}
-		if (buf.len)
-		{
-			FORMATTER_ADD_TEXT (self, buf.str);
-			str_reset (&buf);
-		}
-
-		format = formatter_parse_field (self, format, &buf, ap);
-	}
-
-	if (buf.len)
-		FORMATTER_ADD_TEXT (self, buf.str);
-
-	str_free (&buf);
-}
-
-static void
-formatter_add (struct formatter *self, const char *format, ...)
-{
-	va_list ap;
-	va_start (ap, format);
-	formatter_addv (self, format, &ap);
-	va_end (ap);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-struct line_char_attrs
-{
-	short named;                        ///< Named attribute or -1
-	short text;                         ///< Text attributes
-	int fg;                             ///< Foreground colour (-1 for default)
-	int bg;                             ///< Background colour (-1 for default)
-};
-
-// We can get rid of the linked list and do this in one allocation (use strlen()
-// for the upper bound)--since we only prepend and/or replace characters, add
-// a member to specify the prepended character and how many times to repeat it.
-// Tabs may nullify the wide character but it's not necessary.
-//
-// This would be slighly more optimal but it would also set the algorithm in
-// stone and complicate flushing.
-
-struct line_char
-{
-	LIST_HEADER (struct line_char)
-
-	wchar_t wide;                       ///< The character as a wchar_t
-	int width;                          ///< Width of the character in cells
-	struct line_char_attrs attrs;       ///< Attributes
-};
-
-static struct line_char *
-line_char_new (wchar_t wc)
-{
-	struct line_char *self = xcalloc (1, sizeof *self);
-	self->width = wcwidth ((self->wide = wc));
-
-	// Typically various control characters
-	if (self->width < 0)
-		self->width = 0;
-
-	self->attrs.bg = self->attrs.fg = -1;
-	self->attrs.named = ATTR_RESET;
-	return self;
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-struct line_wrap_mark
-{
-	struct line_char *start;            ///< First character
-	int used;                           ///< Display cells used
-};
-
-static void
-line_wrap_mark_push (struct line_wrap_mark *mark, struct line_char *c)
-{
-	if (!mark->start)
-		mark->start = c;
-	mark->used += c->width;
-}
-
-struct line_wrap_state
-{
-	struct line_char *result;           ///< Head of result
-	struct line_char *result_tail;      ///< Tail of result
-
-	int line_used;                      ///< Line length before marks
-	int line_max;                       ///< Maximum line length
-	struct line_wrap_mark chunk;        ///< All buffered text
-	struct line_wrap_mark overflow;     ///< Overflowing text
-};
-
-static void
-line_wrap_flush_split (struct line_wrap_state *s, struct line_wrap_mark *before)
-{
-	struct line_char *nl = line_char_new (L'\n');
-	LIST_INSERT_WITH_TAIL (s->result, s->result_tail, nl, before->start);
-	s->line_used = before->used;
-}
-
-static void
-line_wrap_flush (struct line_wrap_state *s, bool force_split)
-{
-	if (!s->overflow.start)
-		s->line_used += s->chunk.used;
-	else if (force_split || s->chunk.used > s->line_max)
-	{
-#ifdef WRAP_UNNECESSARILY
-		// When the line wraps at the end of the screen and a background colour
-		// is set, the terminal paints the entire new line with that colour.
-		// Explicitly inserting a newline with the default attributes fixes it.
-		line_wrap_flush_split (s, &s->overflow);
-#else
-		// Splitting here breaks link searching mechanisms in some terminals,
-		// though, so we make a trade-off and let the chunk wrap naturally.
-		// Fuck terminals, really.
-		s->line_used = s->overflow.used;
-#endif
-	}
-	else
-		// Print the chunk in its entirety on a new line
-		line_wrap_flush_split (s, &s->chunk);
-
-	memset (&s->chunk,    0, sizeof s->chunk);
-	memset (&s->overflow, 0, sizeof s->overflow);
-}
-
-static void
-line_wrap_nl (struct line_wrap_state *s)
-{
-	line_wrap_flush (s, true);
-	struct line_char *nl = line_char_new (L'\n');
-	LIST_APPEND_WITH_TAIL (s->result, s->result_tail, nl);
-	s->line_used = 0;
-}
-
-static void
-line_wrap_tab (struct line_wrap_state *s, struct line_char *c)
-{
-	line_wrap_flush (s, true);
-	if (s->line_used >= s->line_max)
-		line_wrap_nl (s);
-
-	// Compute the number of characters needed to get to the next tab stop
-	int tab_width = ((s->line_used + 8) & ~7) - s->line_used;
-	// On overflow just fill the rest of the line with spaces
-	if (s->line_used + tab_width > s->line_max)
-		tab_width = s->line_max - s->line_used;
-
-	s->line_used += tab_width;
-	while (tab_width--)
-	{
-		struct line_char *space = line_char_new (L' ');
-		space->attrs = c->attrs;
-		LIST_APPEND_WITH_TAIL (s->result, s->result_tail, space);
-	}
-}
-
-static void
-line_wrap_push_char (struct line_wrap_state *s, struct line_char *c)
-{
-	// Note that when processing whitespace here, any non-WS chunk has already
-	// been flushed, and thus it matters little if we flush with force split
-	if (wcschr (L"\r\f\v", c->wide))
-		/* Skip problematic characters */;
-	else if (c->wide == L'\n')
-		line_wrap_nl (s);
-	else if (c->wide == L'\t')
-		line_wrap_tab (s, c);
-	else
-		goto use_as_is;
-	free (c);
-	return;
-
-use_as_is:
-	if (s->overflow.start
-	 || s->line_used + s->chunk.used + c->width > s->line_max)
-	{
-		if (s->overflow.used + c->width > s->line_max)
-		{
-#ifdef WRAP_UNNECESSARILY
-			// If the overflow overflows, restart on a new line
-			line_wrap_nl (s);
-#else
-			// See line_wrap_flush(), we would end up on a new line anyway
-			line_wrap_flush (s, true);
-			s->line_used = 0;
-#endif
-		}
-		else
-			line_wrap_mark_push (&s->overflow, c);
-	}
-	line_wrap_mark_push (&s->chunk, c);
-	LIST_APPEND_WITH_TAIL (s->result, s->result_tail, c);
-}
-
-/// Basic word wrapping that respects wcwidth(3) and expands tabs.
-/// Besides making text easier to read, it also fixes the problem with
-/// formatting spilling over the entire new line on line wrap.
-static struct line_char *
-line_wrap (struct line_char *line, int max_width)
-{
-	struct line_wrap_state s = { .line_max = max_width };
-	bool last_was_word_char = false;
-	LIST_FOR_EACH (struct line_char, c, line)
-	{
-		// Act on the right boundary of (\s*\S+) chunks
-		bool this_is_word_char = !wcschr (L" \t\r\n\f\v", c->wide);
-		if (last_was_word_char && !this_is_word_char)
-			line_wrap_flush (&s, false);
-		last_was_word_char = this_is_word_char;
-
-		LIST_UNLINK (line, c);
-		line_wrap_push_char (&s, c);
-	}
-
-	// Make sure to process the last word and return the modified list
-	line_wrap_flush (&s, false);
-	return s.result;
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-struct exploder
-{
-	struct app_context *ctx;            ///< Application context
-	struct line_char *result;           ///< Result
-	struct line_char *result_tail;      ///< Tail of result
-	struct line_char_attrs attrs;       ///< Current attributes
-};
-
-static bool
-explode_formatter_attr (struct exploder *self, struct formatter_item *item)
-{
-	switch (item->type)
-	{
-	case FORMATTER_ITEM_ATTR:
-		self->attrs.named = item->attribute;
-		self->attrs.text = 0;
-		self->attrs.fg = -1;
-		self->attrs.bg = -1;
-		return true;
-	case FORMATTER_ITEM_SIMPLE:
-		self->attrs.named = -1;
-		self->attrs.text ^= item->attribute;
-		return true;
-	case FORMATTER_ITEM_FG_COLOR:
-		self->attrs.named = -1;
-		self->attrs.fg = item->color;
-		return true;
-	case FORMATTER_ITEM_BG_COLOR:
-		self->attrs.named = -1;
-		self->attrs.bg = item->color;
-		return true;
-	default:
-		return false;
-	}
-}
-
-static void
-explode_text (struct exploder *self, const char *text)
-{
-	// Throw away any potentially harmful control characters first
-	struct str filtered = str_make ();
-	for (const char *p = text; *p; p++)
-		if (!strchr ("\a\b\x0e\x0f\x1b" /* BEL BS SO SI ESC */, *p))
-			str_append_c (&filtered, *p);
-
-	size_t term_len = 0;
-	char *term = iconv_xstrdup (self->ctx->term_from_utf8,
-		filtered.str, filtered.len + 1, &term_len);
-	str_free (&filtered);
-
-	mbstate_t ps;
-	memset (&ps, 0, sizeof ps);
-
-	wchar_t wch;
-	size_t len, processed = 0;
-	while ((len = mbrtowc (&wch, term + processed, term_len - processed, &ps)))
-	{
-		hard_assert (len != (size_t) -2 && len != (size_t) -1);
-		processed += len;
-
-		struct line_char *c = line_char_new (wch);
-		c->attrs = self->attrs;
-		LIST_APPEND_WITH_TAIL (self->result, self->result_tail, c);
-	}
-	free (term);
-}
-
-static struct line_char *
-formatter_to_chars (struct formatter *formatter)
-{
-	struct exploder self = { .ctx = formatter->ctx };
-	self.attrs.fg = self.attrs.bg = self.attrs.named = -1;
-
-	int attribute_ignore = 0;
-	for (size_t i = 0; i < formatter->items_len; i++)
-	{
-		struct formatter_item *iter = &formatter->items[i];
-		if      (iter->type == FORMATTER_ITEM_TEXT)
-			explode_text (&self, iter->text);
-		else if (iter->type == FORMATTER_ITEM_IGNORE_ATTR)
-			attribute_ignore += iter->attribute;
-		else if (attribute_ignore <= 0
-			&& !explode_formatter_attr (&self, iter))
-				hard_assert (!"unhandled formatter item type");
-	}
-	return self.result;
-}
-
-enum
-{
-	FLUSH_OPT_RAW    = (1 << 0),        ///< Print raw attributes
-	FLUSH_OPT_NOWRAP = (1 << 1)         ///< Do not wrap
-};
-
-/// The input is a bunch of wide characters--respect shift state encodings
-static void
-formatter_putc (struct line_char *c, FILE *stream)
-{
-	static mbstate_t mb;
-	char buf[MB_LEN_MAX] = {};
-	size_t len = wcrtomb (buf, c ? c->wide : L'\0', &mb);
-	if (len != (size_t) -1 && len)
-		fwrite (buf, len - !c, 1, stream);
-	free (c);
-}
-
-static void
-formatter_flush (struct formatter *self, FILE *stream, int flush_opts)
-{
-	struct line_char *line = formatter_to_chars (self);
-
-	bool is_tty = !!get_attribute_printer (stream);
-	if (!is_tty && !(flush_opts & FLUSH_OPT_RAW))
-	{
-		LIST_FOR_EACH (struct line_char, c, line)
-			formatter_putc (c, stream);
-		formatter_putc (NULL, stream);
-		return;
-	}
-
-	if (self->ctx->word_wrapping && !(flush_opts & FLUSH_OPT_NOWRAP))
-		line = line_wrap (line, g_terminal.columns);
-
-	struct attr_printer state = ATTR_PRINTER_INIT (self->ctx, stream);
-	struct line_char_attrs attrs = {};  // Won't compare equal to anything
-	LIST_FOR_EACH (struct line_char, c, line)
-	{
-		if (attrs.fg    != c->attrs.fg
-		 || attrs.bg    != c->attrs.bg
-		 || attrs.named != c->attrs.named
-		 || attrs.text  != c->attrs.text)
-		{
-			formatter_putc (NULL, stream);
-
-			attrs = c->attrs;
-			if (attrs.named != -1)
-				attr_printer_apply_named (&state, attrs.named);
-			else
-				attr_printer_apply (&state, attrs.text, attrs.fg, attrs.bg);
-		}
-
-		formatter_putc (c, stream);
-	}
-	formatter_putc (NULL, stream);
-	attr_printer_reset (&state);
-}
-
-// --- Buffers -----------------------------------------------------------------
-
-static void
-buffer_pop_excess_lines (struct app_context *ctx, struct buffer *self)
-{
-	int to_delete = (int) self->lines_count - (int) ctx->backlog_limit;
-	while (to_delete-- > 0 && self->lines)
-	{
-		struct buffer_line *excess = self->lines;
-		LIST_UNLINK_WITH_TAIL (self->lines, self->lines_tail, excess);
-		buffer_line_destroy (excess);
-		self->lines_count--;
-	}
-}
-
-static void
-on_config_backlog_limit_change (struct config_item *item)
-{
-	struct app_context *ctx = item->user_data;
-	ctx->backlog_limit = MIN (item->value.integer, INT_MAX);
-
-	LIST_FOR_EACH (struct buffer, iter, ctx->buffers)
-		buffer_pop_excess_lines (ctx, iter);
-}
-
-static void
-buffer_update_time (struct app_context *ctx, time_t now, FILE *stream,
-	int flush_opts)
-{
-	struct tm last, current;
-	if (!localtime_r (&ctx->last_displayed_msg_time, &last)
-	 || !localtime_r (&now, &current))
-	{
-		// Strange but nonfatal
-		print_error ("%s: %s", "localtime_r", strerror (errno));
-		return;
-	}
-
-	ctx->last_displayed_msg_time = now;
-	if (last.tm_year == current.tm_year
-	 && last.tm_mon  == current.tm_mon
-	 && last.tm_mday == current.tm_mday)
-		return;
-
-	char buf[64] = "";
-	const char *format =
-		get_config_string (ctx->config.root, "behaviour.date_change_line");
-	if (!strftime (buf, sizeof buf, format, &current))
-	{
-		print_error ("%s: %s", "strftime", strerror (errno));
-		return;
-	}
-
-	struct formatter f = formatter_make (ctx, NULL);
-	formatter_add (&f, "#a#s\n", ATTR_DATE_CHANGE, buf);
-	formatter_flush (&f, stream, flush_opts);
-	// Flush the trailing formatting reset item
-	fflush (stream);
-	formatter_free (&f);
-}
-
-static void
-buffer_line_flush (struct buffer_line *line, struct formatter *f, FILE *output,
-	int flush_opts)
-{
-	int flags = line->flags;
-	if (flags & BUFFER_LINE_INDENT)  formatter_add (f, "    ");
-	if (flags & BUFFER_LINE_STATUS)  formatter_add (f, " -  ");
-	if (flags & BUFFER_LINE_ERROR)   formatter_add (f, "#a=!=#r ", ATTR_ERROR);
-
-	for (struct formatter_item *iter = line->items; iter->type; iter++)
-		formatter_add_item (f, *iter);
-
-	formatter_add (f, "\n");
-	formatter_flush (f, output, flush_opts);
-	formatter_free (f);
-}
-
-static void
-buffer_line_write_time (struct formatter *f, struct buffer_line *line,
-	FILE *stream, int flush_opts)
-{
-	// Normal timestamps don't include the date, make sure the user won't be
-	// confused as to when an event has happened
-	buffer_update_time (f->ctx, line->when, stream, flush_opts);
-
-	struct tm current;
-	char buf[9];
-	if (!localtime_r (&line->when, &current))
-		print_error ("%s: %s", "localtime_r", strerror (errno));
-	else if (!strftime (buf, sizeof buf, "%T", &current))
-		print_error ("%s: %s", "strftime", "buffer too small");
-	else
-		formatter_add (f, "#a#s#r ", ATTR_TIMESTAMP, buf);
-}
-
-#define buffer_line_will_show_up(buffer, line) \
-	(!(buffer)->hide_unimportant || !((line)->flags & BUFFER_LINE_UNIMPORTANT))
-
-static void
-buffer_line_display (struct app_context *ctx,
-	struct buffer *buffer, struct buffer_line *line, bool is_external)
-{
-	if (!buffer_line_will_show_up (buffer, line))
-		return;
-
-	CALL (ctx->input, hide);
-
-	struct formatter f = formatter_make (ctx, NULL);
-	buffer_line_write_time (&f, line, stdout, 0);
-
-	// Ignore all formatting for messages coming from other buffers, that is
-	// either from the global or server buffer.  Instead print them in grey.
-	if (is_external)
-	{
-		formatter_add (&f, "#a", ATTR_EXTERNAL);
-		FORMATTER_ADD_ITEM (&f, IGNORE_ATTR, .attribute = 1);
-	}
-	buffer_line_flush (line, &f, stdout, 0);
-	// Flush the trailing formatting reset item
-	fflush (stdout);
-
-	CALL (ctx->input, show);
-}
-
-static void
-buffer_line_write_to_backlog (struct app_context *ctx,
-	struct buffer_line *line, FILE *log_file, int flush_opts)
-{
-	struct formatter f = formatter_make (ctx, NULL);
-	buffer_line_write_time (&f, line, log_file, flush_opts);
-	buffer_line_flush (line, &f, log_file, flush_opts);
-}
-
-static void
-buffer_line_write_to_log (struct app_context *ctx,
-	struct buffer_line *line, FILE *log_file)
-{
-	if (line->flags & BUFFER_LINE_SKIP_FILE)
-		return;
-
-	struct formatter f = formatter_make (ctx, NULL);
-	struct tm current;
-	char buf[20];
-	if (!gmtime_r (&line->when, &current))
-		print_error ("%s: %s", "gmtime_r", strerror (errno));
-	else if (!strftime (buf, sizeof buf, "%F %T", &current))
-		print_error ("%s: %s", "strftime", "buffer too small");
-	else
-		formatter_add (&f, "#s ", buf);
-
-	// The target is not a terminal, thus it won't wrap in spite of the 0
-	buffer_line_flush (line, &f, log_file, 0);
-}
-
-static void
-log_formatter (struct app_context *ctx,
-	struct buffer *buffer, int flags, struct formatter *f)
-{
-	if (!buffer)
-		buffer = ctx->global_buffer;
-
-	struct buffer_line *line = buffer_line_new (f);
-	line->flags = flags;
-	// TODO: allow providing custom time (IRCv3.2 server-time)
-	line->when = time (NULL);
-
-	buffer_pop_excess_lines (ctx, buffer);
-	LIST_APPEND_WITH_TAIL (buffer->lines, buffer->lines_tail, line);
-	buffer->lines_count++;
-
-	if (buffer->log_file)
-		buffer_line_write_to_log (ctx, line, buffer->log_file);
-
-	bool unseen_pm = buffer->type == BUFFER_PM
-		&& buffer != ctx->current_buffer
-		&& !(flags & BUFFER_LINE_UNIMPORTANT);
-	bool important = (flags & BUFFER_LINE_HIGHLIGHT) || unseen_pm;
-	if (ctx->beep_on_highlight && important)
-		// XXX: this may disturb any other foreground process
-		CALL (ctx->input, ding);
-
-	bool can_leak = false;
-	if ((buffer == ctx->global_buffer)
-	 || (ctx->current_buffer->type == BUFFER_GLOBAL
-		&& buffer->type == BUFFER_SERVER)
-	 || (ctx->current_buffer->type != BUFFER_GLOBAL
-		&& buffer == ctx->current_buffer->server->buffer))
-		can_leak = true;
-
-	bool displayed = true;
-	if (ctx->terminal_suspended > 0)
-		// Another process is using the terminal
-		displayed = false;
-	else if (buffer == ctx->current_buffer)
-		buffer_line_display (ctx, buffer, line, false);
-	else if (!ctx->isolate_buffers && can_leak)
-		buffer_line_display (ctx, buffer, line, true);
-	else
-		displayed = false;
-
-	// Advance the unread marker in active buffers but don't create a new one
-	if (!displayed
-	 || (buffer == ctx->current_buffer && buffer->new_messages_count))
-	{
-		buffer->new_messages_count++;
-		if (flags & BUFFER_LINE_UNIMPORTANT)
-			buffer->new_unimportant_count++;
-		buffer->highlighted |= important;
-	}
-	if (!displayed)
-		refresh_prompt (ctx);
-}
-
-static void
-log_full (struct app_context *ctx, struct server *s, struct buffer *buffer,
-	int flags, const char *format, ...)
-{
-	va_list ap;
-	va_start (ap, format);
-
-	struct formatter f = formatter_make (ctx, s);
-	formatter_addv (&f, format, &ap);
-	log_formatter (ctx, buffer, flags, &f);
-
-	va_end (ap);
-}
-
-#define log_global(ctx, flags, ...)                                            \
-	log_full ((ctx), NULL, (ctx)->global_buffer, flags, __VA_ARGS__)
-#define log_server(s, buffer, flags, ...)                                      \
-	log_full ((s)->ctx, s, (buffer), flags, __VA_ARGS__)
-
-#define log_global_status(ctx, ...)                                            \
-	log_global ((ctx), BUFFER_LINE_STATUS, __VA_ARGS__)
-#define log_global_error(ctx, ...)                                             \
-	log_global ((ctx), BUFFER_LINE_ERROR,  __VA_ARGS__)
-#define log_global_indent(ctx, ...)                                            \
-	log_global ((ctx), BUFFER_LINE_INDENT, __VA_ARGS__)
-
-#define log_server_status(s, buffer, ...)                                      \
-	log_server ((s), (buffer), BUFFER_LINE_STATUS, __VA_ARGS__)
-#define log_server_error(s, buffer, ...)                                       \
-	log_server ((s), (buffer), BUFFER_LINE_ERROR,  __VA_ARGS__)
-
-#define log_global_debug(ctx, ...)                                             \
-	BLOCK_START                                                                \
-		if (g_debug_mode)                                                      \
-			log_global ((ctx), 0, "(*) " __VA_ARGS__);                         \
-	BLOCK_END
-
-#define log_server_debug(s, ...)                                               \
-	BLOCK_START                                                                \
-		if (g_debug_mode)                                                      \
-			log_server ((s), (s)->buffer, 0, "(*) " __VA_ARGS__);              \
-	BLOCK_END
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-// Lines that are used in more than one place
-
-#define log_nick_self(s, buffer, new_)                                         \
-	log_server ((s), (buffer), BUFFER_LINE_STATUS | BUFFER_LINE_UNIMPORTANT,   \
-		"You are now known as #n", (new_))
-#define log_nick(s, buffer, old, new_)                                         \
-	log_server ((s), (buffer), BUFFER_LINE_STATUS | BUFFER_LINE_UNIMPORTANT,   \
-		"#n is now known as #n", (old), (new_))
-
-#define log_chghost_self(s, buffer, new_)                                      \
-	log_server ((s), (buffer), BUFFER_LINE_STATUS | BUFFER_LINE_UNIMPORTANT,   \
-		"You are now #N", (new_))
-#define log_chghost(s, buffer, old, new_)                                      \
-	log_server ((s), (buffer), BUFFER_LINE_STATUS | BUFFER_LINE_UNIMPORTANT,   \
-		"#N is now #N", (old), (new_))
-
-#define log_outcoming_notice(s, buffer, who, text)                             \
-	log_server_status ((s), (buffer), "#s(#n): #m", "Notice", (who), (text))
-#define log_outcoming_privmsg(s, buffer, prefixes, who, text)                  \
-	log_server ((s), (buffer), 0, "<#s#n> #m", (prefixes), (who), (text))
-#define log_outcoming_action(s, buffer, who, text)                             \
-	log_server ((s), (buffer), 0, " #a*#r  #n #m", ATTR_ACTION, (who), (text))
-
-#define log_outcoming_orphan_notice(s, target, text)                           \
-	log_server_status ((s), (s)->buffer, "Notice -> #n: #m", (target), (text))
-#define log_outcoming_orphan_privmsg(s, target, text)                          \
-	log_server_status ((s), (s)->buffer, "MSG(#n): #m", (target), (text))
-
-#define log_ctcp_query(s, target, tag)                                         \
-	log_server_status ((s), (s)->buffer, "CTCP query to #S: #S", target, tag)
-#define log_ctcp_reply(s, target, reply /* freed! */)                          \
-	log_server_status ((s), (s)->buffer, "CTCP reply to #S: #&S", target, reply)
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-make_log_filename (const char *filename, struct str *output)
-{
-	for (const char *p = filename; *p; p++)
-		// XXX: anything more to replace?
-		if (strchr ("/\\ ", *p))
-			str_append_c (output, '_');
-		else
-			str_append_c (output, tolower_ascii (*p));
-}
-
-static char *
-buffer_get_log_path (struct buffer *buffer)
-{
-	struct str path = str_make ();
-	get_xdg_home_dir (&path, "XDG_DATA_HOME", ".local/share");
-	str_append_printf (&path, "/%s/%s", PROGRAM_NAME, "logs");
-
-	(void) mkdir_with_parents (path.str, NULL);
-
-	str_append_c (&path, '/');
-	make_log_filename (buffer->name, &path);
-	str_append (&path, ".log");
-	return str_steal (&path);
-}
-
-static void
-buffer_open_log_file (struct app_context *ctx, struct buffer *buffer)
-{
-	if (!ctx->logging || buffer->log_file)
-		return;
-
-	// TODO: should we try to reopen files wrt. case mapping?
-	//  - Need to read the whole directory and look for matches:
-	//    irc_server_strcmp(buffer->s, d_name, make_log_filename())
-	//    remember to strip the ".log" suffix from d_name, case-sensitively.
-	//  - The tolower_ascii() in make_log_filename() is a perfect overlap,
-	//    it may stay as-is.
-	//  - buffer_get_log_path() will need to return a FILE *,
-	//    or an error that includes the below message.
-	char *path = buffer_get_log_path (buffer);
-	if (!(buffer->log_file = fopen (path, "ab")))
-		log_global_error (ctx, "Couldn't open log file `#s': #l",
-			path, strerror (errno));
-	else
-		set_cloexec (fileno (buffer->log_file));
-	free (path);
-}
-
-static void
-buffer_close_log_file (struct buffer *buffer)
-{
-	if (buffer->log_file)
-		(void) fclose (buffer->log_file);
-	buffer->log_file = NULL;
-}
-
-static void
-on_config_logging_change (struct config_item *item)
-{
-	struct app_context *ctx = item->user_data;
-	ctx->logging = item->value.boolean;
-
-	for (struct buffer *buffer = ctx->buffers; buffer; buffer = buffer->next)
-		if (ctx->logging)
-			buffer_open_log_file (ctx, buffer);
-		else
-			buffer_close_log_file (buffer);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static struct buffer *
-buffer_by_name (struct app_context *ctx, const char *name)
-{
-	return str_map_find (&ctx->buffers_by_name, name);
-}
-
-static void
-buffer_add (struct app_context *ctx, struct buffer *buffer)
-{
-	hard_assert (!buffer_by_name (ctx, buffer->name));
-
-	str_map_set (&ctx->buffers_by_name, buffer->name, buffer);
-	LIST_APPEND_WITH_TAIL (ctx->buffers, ctx->buffers_tail, buffer);
-
-	buffer_open_log_file (ctx, buffer);
-
-	// Normally this doesn't cause changes in the prompt but a prompt hook
-	// could decide to show some information for all buffers nonetheless
-	refresh_prompt (ctx);
-}
-
-static void
-buffer_remove (struct app_context *ctx, struct buffer *buffer)
-{
-	hard_assert (buffer != ctx->current_buffer);
-	hard_assert (buffer != ctx->global_buffer);
-
-	CALL_ (ctx->input, buffer_destroy, buffer->input_data);
-	buffer->input_data = NULL;
-
-	// And make sure to unlink the buffer from "irc_buffer_map"
-	struct server *s = buffer->server;
-	if (buffer->channel)
-		str_map_set (&s->irc_buffer_map, buffer->channel->name, NULL);
-	if (buffer->user)
-		str_map_set (&s->irc_buffer_map, buffer->user->nickname, NULL);
-
-	if (buffer == ctx->last_buffer)
-		ctx->last_buffer = NULL;
-	if (buffer->type == BUFFER_SERVER)
-		buffer->server->buffer = NULL;
-
-	str_map_set (&ctx->buffers_by_name, buffer->name, NULL);
-	LIST_UNLINK_WITH_TAIL (ctx->buffers, ctx->buffers_tail, buffer);
-	buffer_unref (buffer);
-
-	refresh_prompt (ctx);
-}
-
-static void
-buffer_print_read_marker (struct app_context *ctx, FILE *stream, int flush_opts)
-{
-	struct formatter f = formatter_make (ctx, NULL);
-	const int timestamp_width = 8;  // hardcoded to %T right now, simple
-	const char *marker_char = get_config_string (ctx->config.root,
-		"behaviour.read_marker_char");
-
-	// We could turn this off on FLUSH_OPT_NOWRAP, however our default pager
-	// wraps lines for us even if we don't do it ourselves, and thus there's
-	// no need to worry about inconsistency.
-	if (*marker_char)
-	{
-		struct str s = str_make ();
-		for (int i = 0; i < timestamp_width; i++)
-			str_append (&s, marker_char);
-		formatter_add (&f, "#a#s#r", ATTR_TIMESTAMP, s.str);
-		str_reset (&s);
-		for (int i = timestamp_width; i < g_terminal.columns; i++)
-			str_append (&s, marker_char);
-		formatter_add (&f, "#a#s#r\n", ATTR_READ_MARKER, s.str);
-		str_free (&s);
-	}
-	else
-		formatter_add (&f, "#a-- -- -- ---\n", ATTR_READ_MARKER);
-
-	formatter_flush (&f, stream, flush_opts);
-	// Flush the trailing formatting reset item
-	fflush (stream);
-	formatter_free (&f);
-}
-
-static void
-buffer_print_backlog (struct app_context *ctx, struct buffer *buffer)
-{
-	// The prompt can take considerable time to redraw
-	CALL (ctx->input, hide);
-
-	// Simulate curses-like fullscreen buffers if the terminal allows it
-	if (g_terminal.initialized && clear_screen)
-	{
-		terminal_printer_fn printer = get_attribute_printer (stdout);
-		tputs (clear_screen, 1, printer);
-		if (cursor_to_ll)
-			tputs (cursor_to_ll, 1, printer);
-		else if (row_address)
-			tputs (tparm (row_address, g_terminal.lines - 1,
-				0, 0, 0, 0, 0, 0, 0, 0), 1, printer);
-		else if (cursor_address)
-			tputs (tparm (cursor_address, g_terminal.lines - 1,
-				0, 0, 0, 0, 0, 0, 0, 0), 1, printer);
-		fflush (stdout);
-
-		// We should update "last_displayed_msg_time" here just to be sure
-		// that the first date marker, if necessary, is shown, but in practice
-		// the value should always be from today when this function is called
-	}
-	else
-	{
-		char *buffer_name_localized =
-			iconv_xstrdup (ctx->term_from_utf8, buffer->name, -1, NULL);
-		print_status ("%s", buffer_name_localized);
-		free (buffer_name_localized);
-	}
-
-	// That is, minus the readline prompt (taking at least one line)
-	int display_limit = MAX (10, g_terminal.lines - 1);
-	int to_display = 0;
-
-	struct buffer_line *line;
-	for (line = buffer->lines_tail; line; line = line->prev)
-	{
-		to_display++;
-		if (buffer_line_will_show_up (buffer, line))
-			display_limit--;
-		if (!line->prev || display_limit <= 0)
-			break;
-	}
-
-	// Once we've found where we want to start with the backlog, print it
-	int until_marker = to_display - (int) buffer->new_messages_count;
-	for (; line; line = line->next)
-	{
-		if (until_marker-- == 0
-		 && buffer->new_messages_count != buffer->lines_count)
-			buffer_print_read_marker (ctx, stdout, 0);
-		buffer_line_display (ctx, buffer, line, 0);
-	}
-
-	// So that it is obvious if the last line in the buffer is not from today
-	buffer_update_time (ctx, time (NULL), stdout, 0);
-
-	refresh_prompt (ctx);
-	CALL (ctx->input, show);
-}
-
-static void
-buffer_activate (struct app_context *ctx, struct buffer *buffer)
-{
-	if (ctx->current_buffer == buffer)
-		return;
-
-	// This is the only place where the unread messages marker
-	// and highlight indicator are reset
-	if (ctx->current_buffer)
-	{
-		ctx->current_buffer->new_messages_count = 0;
-		ctx->current_buffer->new_unimportant_count = 0;
-		ctx->current_buffer->highlighted = false;
-	}
-
-	buffer_print_backlog (ctx, buffer);
-	CALL_ (ctx->input, buffer_switch, buffer->input_data);
-
-	// Now at last we can switch the pointers
-	ctx->last_buffer = ctx->current_buffer;
-	ctx->current_buffer = buffer;
-
-	refresh_prompt (ctx);
-}
-
-static void
-buffer_merge (struct app_context *ctx,
-	struct buffer *buffer, struct buffer *merged)
-{
-	// XXX: anything better to do?  This situation is arguably rare and I'm
-	//   not entirely sure what action to take.
-	log_full (ctx, NULL, buffer, BUFFER_LINE_STATUS,
-		"Buffer #s was merged into this buffer", merged->name);
-
-	// Find all lines from "merged" newer than the newest line in "buffer"
-	struct buffer_line *start = merged->lines;
-	if (buffer->lines_tail)
-		while (start && start->when < buffer->lines_tail->when)
-			start = start->next;
-	if (!start)
-		return;
-
-	// Count how many of them we have
-	size_t n = 0;
-	for (struct buffer_line *iter = start; iter; iter = iter->next)
-		n++;
-	struct buffer_line *tail = merged->lines_tail;
-
-	// Cut them from the original buffer
-	if (start == merged->lines)
-		merged->lines = NULL;
-	else if (start->prev)
-		start->prev->next = NULL;
-	merged->lines_tail = start->prev;
-	merged->lines_count -= n;
-
-	// And append them to current lines in the buffer
-	buffer->lines_tail->next = start;
-	start->prev = buffer->lines_tail;
-	buffer->lines_tail = tail;
-	buffer->lines_count += n;
-
-	log_full (ctx, NULL, buffer, BUFFER_LINE_STATUS | BUFFER_LINE_SKIP_FILE,
-		"End of merged content");
-}
-
-static void
-buffer_rename (struct app_context *ctx,
-	struct buffer *buffer, const char *new_name)
-{
-	struct buffer *collision = str_map_find (&ctx->buffers_by_name, new_name);
-	if (collision == buffer)
-		return;
-
-	hard_assert (!collision);
-
-	str_map_set (&ctx->buffers_by_name, buffer->name, NULL);
-	str_map_set (&ctx->buffers_by_name, new_name, buffer);
-
-	cstr_set (&buffer->name, xstrdup (new_name));
-
-	buffer_close_log_file (buffer);
-	buffer_open_log_file (ctx, buffer);
-
-	// We might have renamed the current buffer
-	refresh_prompt (ctx);
-}
-
-static void
-buffer_clear (struct buffer *buffer)
-{
-	LIST_FOR_EACH (struct buffer_line, iter, buffer->lines)
-		buffer_line_destroy (iter);
-
-	buffer->lines = buffer->lines_tail = NULL;
-	buffer->lines_count = 0;
-}
-
-static struct buffer *
-buffer_at_index (struct app_context *ctx, int n)
-{
-	int i = 0;
-	LIST_FOR_EACH (struct buffer, iter, ctx->buffers)
-		if (++i == n)
-			return iter;
-	return NULL;
-}
-
-static struct buffer *
-buffer_next (struct app_context *ctx, int count)
-{
-	struct buffer *new_buffer = ctx->current_buffer;
-	while (count-- > 0)
-		if (!(new_buffer = new_buffer->next))
-			new_buffer = ctx->buffers;
-	return new_buffer;
-}
-
-static struct buffer *
-buffer_previous (struct app_context *ctx, int count)
-{
-	struct buffer *new_buffer = ctx->current_buffer;
-	while (count-- > 0)
-		if (!(new_buffer = new_buffer->prev))
-			new_buffer = ctx->buffers_tail;
-	return new_buffer;
-}
-
-static bool
-buffer_goto (struct app_context *ctx, int n)
-{
-	struct buffer *buffer = buffer_at_index (ctx, n);
-	if (!buffer)
-		return false;
-
-	buffer_activate (ctx, buffer);
-	return true;
-}
-
-static int
-buffer_count (struct app_context *ctx)
-{
-	int total = 0;
-	LIST_FOR_EACH (struct buffer, iter, ctx->buffers)
-		total++;
-	return total;
-}
-
-static void
-buffer_move (struct app_context *ctx, struct buffer *buffer, int n)
-{
-	hard_assert (n >= 1 && n <= buffer_count (ctx));
-	LIST_UNLINK_WITH_TAIL (ctx->buffers, ctx->buffers_tail, buffer);
-
-	struct buffer *following = ctx->buffers;
-	while (--n && following)
-		following = following->next;
-
-	LIST_INSERT_WITH_TAIL (ctx->buffers, ctx->buffers_tail, buffer, following);
-	refresh_prompt (ctx);
-}
-
-static int
-buffer_get_index (struct app_context *ctx, struct buffer *buffer)
-{
-	int index = 1;
-	LIST_FOR_EACH (struct buffer, iter, ctx->buffers)
-	{
-		if (iter == buffer)
-			return index;
-		index++;
-	}
-	return -1;
-}
-
-static void
-buffer_remove_safe (struct app_context *ctx, struct buffer *buffer)
-{
-	if (buffer == ctx->current_buffer)
-		buffer_activate (ctx, ctx->last_buffer
-			? ctx->last_buffer
-			: buffer_next (ctx, 1));
-	buffer_remove (ctx, buffer);
-}
-
-static void
-init_global_buffer (struct app_context *ctx)
-{
-	struct buffer *global = ctx->global_buffer =
-		buffer_new (ctx->input, BUFFER_GLOBAL, xstrdup (PROGRAM_NAME));
-
-	buffer_add (ctx, global);
-	buffer_activate (ctx, global);
-}
-
-// --- Users, channels ---------------------------------------------------------
-
-static char *
-irc_make_buffer_name (struct server *s, const char *target)
-{
-	if (!target)
-		return xstrdup (s->name);
-
-	// XXX: this may be able to trigger the uniqueness assertion with non-UTF-8
-	char *target_utf8 = irc_to_utf8 (target);
-	char *result = xstrdup_printf ("%s.%s", s->name, target_utf8);
-	free (target_utf8);
-	return result;
-}
-
-static void
-irc_user_on_destroy (void *object, void *user_data)
-{
-	struct user *user = object;
-	struct server *s = user_data;
-	if (!s->rehashing)
-		str_map_set (&s->irc_users, user->nickname, NULL);
-}
-
-static struct user *
-irc_make_user (struct server *s, char *nickname)
-{
-	hard_assert (!str_map_find (&s->irc_users, nickname));
-
-	struct user *user = user_new (nickname);
-	(void) user_weak_ref (user, irc_user_on_destroy, s);
-	str_map_set (&s->irc_users, user->nickname, user);
-	return user;
-}
-
-struct user *
-irc_get_or_make_user (struct server *s, const char *nickname)
-{
-	struct user *user = str_map_find (&s->irc_users, nickname);
-	if (user)
-		return user_ref (user);
-	return irc_make_user (s, xstrdup (nickname));
-}
-
-static struct buffer *
-irc_get_or_make_user_buffer (struct server *s, const char *nickname)
-{
-	struct buffer *buffer = str_map_find (&s->irc_buffer_map, nickname);
-	if (buffer)
-		return buffer;
-
-	struct user *user = irc_get_or_make_user (s, nickname);
-
-	// Open a new buffer for the user
-	buffer = buffer_new (s->ctx->input,
-		BUFFER_PM, irc_make_buffer_name (s, nickname));
-	buffer->server = s;
-	buffer->user = user;
-	str_map_set (&s->irc_buffer_map, user->nickname, buffer);
-
-	buffer_add (s->ctx, buffer);
-	return buffer;
-}
-
-static void
-irc_get_channel_user_prefix (struct server *s,
-	struct channel_user *channel_user, struct str *output)
-{
-	if (s->ctx->show_all_prefixes)
-		str_append (output, channel_user->prefixes);
-	else if (channel_user->prefixes[0])
-		str_append_c (output, channel_user->prefixes[0]);
-}
-
-static bool
-irc_channel_is_joined (struct channel *channel)
-{
-	// TODO: find a better way of checking if we're on a channel
-	return !!channel->users_len;
-}
-
-// Note that this eats the user reference
-static void
-irc_channel_link_user (struct channel *channel, struct user *user,
-	const char *prefixes)
-{
-	struct user_channel *user_channel = user_channel_new (channel);
-	LIST_PREPEND (user->channels, user_channel);
-
-	struct channel_user *channel_user = channel_user_new (user, prefixes);
-	LIST_PREPEND (channel->users, channel_user);
-	channel->users_len++;
-}
-
-static void
-irc_channel_unlink_user
-	(struct channel *channel, struct channel_user *channel_user)
-{
-	// First destroy the user's weak references to the channel
-	struct user *user = channel_user->user;
-	LIST_FOR_EACH (struct user_channel, iter, user->channels)
-		if (iter->channel == channel)
-		{
-			LIST_UNLINK (user->channels, iter);
-			user_channel_destroy (iter);
-		}
-
-	// TODO: poll the away status for users we don't share a channel with.
-	//   It might or might not be worth to auto-set this on with RPL_AWAY.
-	if (!user->channels && user != channel->s->irc_user)
-		user->away = false;
-
-	// Then just unlink the user from the channel
-	LIST_UNLINK (channel->users, channel_user);
-	channel_user_destroy (channel_user);
-	channel->users_len--;
-}
-
-static void
-irc_channel_on_destroy (void *object, void *user_data)
-{
-	struct channel *channel = object;
-	struct server *s = user_data;
-	LIST_FOR_EACH (struct channel_user, iter, channel->users)
-		irc_channel_unlink_user (channel, iter);
-	if (!s->rehashing)
-		str_map_set (&s->irc_channels, channel->name, NULL);
-}
-
-static struct channel *
-irc_make_channel (struct server *s, char *name)
-{
-	hard_assert (!str_map_find (&s->irc_channels, name));
-
-	struct channel *channel = channel_new (s, name);
-	(void) channel_weak_ref (channel, irc_channel_on_destroy, s);
-	str_map_set (&s->irc_channels, channel->name, channel);
-	return channel;
-}
-
-static struct channel_user *
-irc_channel_get_user (struct channel *channel, struct user *user)
-{
-	LIST_FOR_EACH (struct channel_user, iter, channel->users)
-		if (iter->user == user)
-			return iter;
-	return NULL;
-}
-
-static void
-irc_remove_user_from_channel (struct user *user, struct channel *channel)
-{
-	struct channel_user *channel_user = irc_channel_get_user (channel, user);
-	if (channel_user)
-		irc_channel_unlink_user (channel, channel_user);
-}
-
-static void
-irc_left_channel (struct channel *channel)
-{
-	strv_reset (&channel->names_buf);
-	channel->show_names_after_who = false;
-
-	LIST_FOR_EACH (struct channel_user, iter, channel->users)
-		irc_channel_unlink_user (channel, iter);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-remove_conflicting_buffer (struct server *s, struct buffer *buffer)
-{
-	log_server_status (s, s->buffer,
-		"Removed buffer #s because of casemapping conflict", buffer->name);
-	if (s->ctx->current_buffer == buffer)
-		buffer_activate (s->ctx, s->buffer);
-	buffer_remove (s->ctx, buffer);
-}
-
-static void
-irc_try_readd_user (struct server *s,
-	struct user *user, struct buffer *buffer)
-{
-	if (str_map_find (&s->irc_users, user->nickname))
-	{
-		// Remove user from all channels and destroy any PM buffer
-		user_ref (user);
-		LIST_FOR_EACH (struct user_channel, iter, user->channels)
-			irc_remove_user_from_channel (user, iter->channel);
-		if (buffer)
-			remove_conflicting_buffer (s, buffer);
-		user_unref (user);
-	}
-	else
-	{
-		str_map_set (&s->irc_users, user->nickname, user);
-		str_map_set (&s->irc_buffer_map, user->nickname, buffer);
-	}
-}
-
-static void
-irc_try_readd_channel (struct channel *channel, struct buffer *buffer)
-{
-	struct server *s = channel->s;
-	if (str_map_find (&s->irc_channels, channel->name))
-	{
-		// Remove all users from channel and destroy any channel buffer
-		channel_ref (channel);
-		LIST_FOR_EACH (struct channel_user, iter, channel->users)
-			irc_channel_unlink_user (channel, iter);
-		if (buffer)
-			remove_conflicting_buffer (s, buffer);
-		channel_unref (channel);
-	}
-	else
-	{
-		str_map_set (&s->irc_channels, channel->name, channel);
-		str_map_set (&s->irc_buffer_map, channel->name, buffer);
-	}
-}
-
-static void
-irc_rehash_and_fix_conflicts (struct server *s)
-{
-	// Save the old maps and initialize new ones
-	struct str_map old_users      = s->irc_users;
-	struct str_map old_channels   = s->irc_channels;
-	struct str_map old_buffer_map = s->irc_buffer_map;
-
-	s->irc_users      = str_map_make (NULL);
-	s->irc_channels   = str_map_make (NULL);
-	s->irc_buffer_map = str_map_make (NULL);
-
-	s->irc_users     .key_xfrm = s->irc_strxfrm;
-	s->irc_channels  .key_xfrm = s->irc_strxfrm;
-	s->irc_buffer_map.key_xfrm = s->irc_strxfrm;
-
-	// Prevent channels and users from unsetting themselves
-	// from server maps upon removing the last reference to them
-	s->rehashing = true;
-
-	// XXX: to be perfectly sure, we should also check
-	//   whether any users collide with channels and vice versa
-
-	// Our own user always takes priority, add him first
-	if (s->irc_user)
-		irc_try_readd_user (s, s->irc_user,
-			str_map_find (&old_buffer_map, s->irc_user->nickname));
-
-	struct str_map_iter iter;
-	struct user *user;
-	struct channel *channel;
-
-	iter = str_map_iter_make (&old_users);
-	while ((user = str_map_iter_next (&iter)))
-		irc_try_readd_user (s, user,
-			str_map_find (&old_buffer_map, user->nickname));
-
-	iter = str_map_iter_make (&old_channels);
-	while ((channel = str_map_iter_next (&iter)))
-		irc_try_readd_channel (channel,
-			str_map_find (&old_buffer_map, channel->name));
-
-	// Hopefully we've either moved or destroyed all the old content
-	s->rehashing = false;
-
-	str_map_free (&old_users);
-	str_map_free (&old_channels);
-	str_map_free (&old_buffer_map);
-}
-
-static void
-irc_set_casemapping (struct server *s,
-	irc_tolower_fn tolower, irc_strxfrm_fn strxfrm)
-{
-	if (tolower == s->irc_tolower
-	 && strxfrm == s->irc_strxfrm)
-		return;
-
-	s->irc_tolower = tolower;
-	s->irc_strxfrm = strxfrm;
-
-	// Ideally we would never have to do this but I can't think of a workaround
-	irc_rehash_and_fix_conflicts (s);
-}
-
-// --- Core functionality ------------------------------------------------------
-
-static bool
-irc_is_connected (struct server *s)
-{
-	return s->state != IRC_DISCONNECTED && s->state != IRC_CONNECTING;
-}
-
-static void
-irc_update_poller (struct server *s, const struct pollfd *pfd)
-{
-	int new_events = s->transport->get_poll_events (s);
-	hard_assert (new_events != 0);
-
-	if (!pfd || pfd->events != new_events)
-		poller_fd_set (&s->socket_event, new_events);
-}
-
-static void
-irc_cancel_timers (struct server *s)
-{
-	poller_timer_reset (&s->timeout_tmr);
-	poller_timer_reset (&s->ping_tmr);
-	poller_timer_reset (&s->reconnect_tmr);
-	poller_timer_reset (&s->autojoin_tmr);
-}
-
-static void
-irc_reset_connection_timeouts (struct server *s)
-{
-	poller_timer_set (&s->timeout_tmr, 3 * 60 * 1000);
-	poller_timer_set (&s->ping_tmr, (3 * 60 + 30) * 1000);
-	poller_timer_reset (&s->reconnect_tmr);
-}
-
-static int64_t
-irc_get_reconnect_delay (struct server *s)
-{
-	int64_t delay = get_config_integer (s->config, "reconnect_delay");
-	int64_t delay_factor = get_config_integer (s->ctx->config.root,
-		"behaviour.reconnect_delay_growing");
-	for (unsigned i = 0; i < s->reconnect_attempt; i++)
-	{
-		if (delay_factor && delay > INT64_MAX / delay_factor)
-			break;
-		delay *= delay_factor;
-	}
-
-	int64_t delay_max = get_config_integer (s->ctx->config.root,
-		"behaviour.reconnect_delay_max");
-	return MIN (delay, delay_max);
-}
-
-static void
-irc_queue_reconnect (struct server *s)
-{
-	// As long as the user wants us to, that is
-	if (!get_config_boolean (s->config, "reconnect"))
-		return;
-
-	// XXX: maybe add a state for when a connect is queued?
-	hard_assert (s->state == IRC_DISCONNECTED);
-
-	int64_t delay = irc_get_reconnect_delay (s);
-	s->reconnect_attempt++;
-
-	log_server_status (s, s->buffer,
-		"Trying to reconnect in #&s seconds...",
-		xstrdup_printf ("%" PRId64, delay));
-	poller_timer_set (&s->reconnect_tmr, delay * 1000);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void irc_process_sent_message
-	(const struct irc_message *msg, struct server *s);
-static void irc_send (struct server *s,
-	const char *format, ...) ATTRIBUTE_PRINTF (2, 3);
-
-static void
-irc_send (struct server *s, const char *format, ...)
-{
-	if (!soft_assert (irc_is_connected (s)))
-	{
-		log_server_debug (s, "sending a message to a dead server connection");
-		return;
-	}
-
-	if (s->state == IRC_CLOSING
-	 || s->state == IRC_HALF_CLOSED)
-		return;
-
-	va_list ap;
-	va_start (ap, format);
-	struct str str = str_make ();
-	str_append_vprintf (&str, format, ap);
-	va_end (ap);
-
-	log_server_debug (s, "#a<< \"#S\"#r", ATTR_PART, str.str);
-
-	struct irc_message msg;
-	irc_parse_message (&msg, str.str);
-	irc_process_sent_message (&msg, s);
-	irc_free_message (&msg);
-
-	str_append_str (&s->write_buffer, &str);
-	str_free (&str);
-	str_append (&s->write_buffer, "\r\n");
-	irc_update_poller (s, NULL);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-irc_real_shutdown (struct server *s)
-{
-	hard_assert (irc_is_connected (s) && s->state != IRC_HALF_CLOSED);
-
-	if (s->transport
-	 && s->transport->in_before_shutdown)
-		s->transport->in_before_shutdown (s);
-
-	while (shutdown (s->socket, SHUT_WR) == -1)
-		// XXX: we get ENOTCONN with OpenSSL (not plain) when a localhost
-		// server is aborted, why?  strace says read 0, write 31, shutdown -1.
-		if (!soft_assert (errno == EINTR))
-			break;
-
-	s->state = IRC_HALF_CLOSED;
-}
-
-static void
-irc_shutdown (struct server *s)
-{
-	if (s->state == IRC_CLOSING
-	 || s->state == IRC_HALF_CLOSED)
-		return;
-
-	// TODO: set a timer to cut the connection if we don't receive an EOF
-	s->state = IRC_CLOSING;
-
-	// Either there's still some data in the write buffer and we wait
-	// until they're sent, or we send an EOF to the server right away
-	if (!s->write_buffer.len)
-		irc_real_shutdown (s);
-}
-
-static void
-irc_destroy_connector (struct server *s)
-{
-	if (s->connector)
-		connector_free (s->connector);
-	free (s->connector);
-	s->connector = NULL;
-
-	if (s->socks_conn)
-		socks_connector_free (s->socks_conn);
-	free (s->socks_conn);
-	s->socks_conn = NULL;
-
-	// Not connecting anymore
-	s->state = IRC_DISCONNECTED;
-}
-
-static void
-try_finish_quit (struct app_context *ctx)
-{
-	if (!ctx->quitting)
-		return;
-
-	bool disconnected_all = true;
-	struct str_map_iter iter = str_map_iter_make (&ctx->servers);
-	struct server *s;
-	while ((s = str_map_iter_next (&iter)))
-		if (irc_is_connected (s))
-			disconnected_all = false;
-
-	if (disconnected_all)
-		ctx->polling = false;
-}
-
-static void
-irc_destroy_transport (struct server *s)
-{
-	if (s->transport
-	 && s->transport->cleanup)
-		s->transport->cleanup (s);
-	s->transport = NULL;
-
-	poller_fd_reset (&s->socket_event);
-	xclose (s->socket);
-	s->socket = -1;
-	s->state = IRC_DISCONNECTED;
-
-	str_reset (&s->read_buffer);
-	str_reset (&s->write_buffer);
-}
-
-static void
-irc_destroy_state (struct server *s)
-{
-	struct str_map_iter iter = str_map_iter_make (&s->irc_channels);
-	struct channel *channel;
-	while ((channel = str_map_iter_next (&iter)))
-		irc_left_channel (channel);
-
-	if (s->irc_user)
-	{
-		user_unref (s->irc_user);
-		s->irc_user = NULL;
-	}
-
-	str_reset (&s->irc_user_mode);
-	cstr_set (&s->irc_user_host, NULL);
-
-	strv_reset (&s->cap_ls_buf);
-	s->cap_away_notify = false;
-	s->cap_echo_message = false;
-	s->cap_sasl = false;
-
-	// Need to call this before server_init_specifics()
-	irc_set_casemapping (s, irc_tolower, irc_strxfrm);
-
-	server_free_specifics (s);
-	server_init_specifics (s);
-}
-
-static void
-irc_disconnect (struct server *s)
-{
-	hard_assert (irc_is_connected (s));
-
-	struct str_map_iter iter = str_map_iter_make (&s->irc_buffer_map);
-	struct buffer *buffer;
-	while ((buffer = str_map_iter_next (&iter)))
-		log_server (s, buffer, BUFFER_LINE_STATUS | BUFFER_LINE_UNIMPORTANT,
-			"Disconnected from server");
-
-	irc_cancel_timers (s);
-	irc_destroy_transport (s);
-	irc_destroy_state (s);
-
-	// Take any relevant actions
-	if (s->ctx->quitting)
-		try_finish_quit (s->ctx);
-	else if (s->manual_disconnect)
-		s->manual_disconnect = false;
-	else
-	{
-		s->reconnect_attempt = 0;
-		irc_queue_reconnect (s);
-	}
-
-	refresh_prompt (s->ctx);
-}
-
-static void
-irc_initiate_disconnect (struct server *s, const char *reason)
-{
-	hard_assert (irc_is_connected (s));
-
-	// It can take a very long time for sending QUIT to take effect
-	if (s->manual_disconnect)
-	{
-		log_server_error (s, s->buffer, "#s: #s", "Disconnected from server",
-			"connection torn down early per user request");
-		irc_disconnect (s);
-		return;
-	}
-
-	if (reason)
-		irc_send (s, "QUIT :%s", reason);
-	else
-		// TODO: make the default QUIT message customizable
-		//   -> global/per server/both?
-		//   -> implement it with an output hook in a plugin?
-		irc_send (s, "QUIT :%s", PROGRAM_NAME " " PROGRAM_VERSION);
-
-	s->manual_disconnect = true;
-	irc_shutdown (s);
-}
-
-static void
-request_quit (struct app_context *ctx, const char *message)
-{
-	if (!ctx->quitting)
-	{
-		log_global_status (ctx, "Shutting down");
-		ctx->quitting = true;
-
-		// Disable the user interface
-		CALL (ctx->input, hide);
-	}
-
-	struct str_map_iter iter = str_map_iter_make (&ctx->servers);
-	struct server *s;
-	while ((s = str_map_iter_next (&iter)))
-	{
-		// There may be a timer set to reconnect to the server
-		poller_timer_reset (&s->reconnect_tmr);
-
-		if (irc_is_connected (s))
-			irc_initiate_disconnect (s, message);
-		else if (s->state == IRC_CONNECTING)
-			irc_destroy_connector (s);
-	}
-
-	try_finish_quit (ctx);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-on_irc_ping_timeout (void *user_data)
-{
-	struct server *s = user_data;
-	log_server_error (s, s->buffer,
-		"#s: #s", "Disconnected from server", "timeout");
-	irc_disconnect (s);
-}
-
-static void
-on_irc_timeout (void *user_data)
-{
-	// Provoke a response from the server
-	struct server *s = user_data;
-	irc_send (s, "PING :%" PRIi64, (int64_t) time (NULL));
-}
-
-static void
-on_irc_autojoin_timeout (void *user_data)
-{
-	struct server *s = user_data;
-
-	// Since we may not have information from RPL_ISUPPORT yet,
-	// it's our safest bet to send the channels one at a time
-
-	struct str_map joins_sent = str_map_make (NULL);
-
-	// We don't know the casemapping yet either, however ASCII should do
-	joins_sent.key_xfrm = tolower_ascii_strxfrm;
-
-	// First join autojoin channels in their given order
-	const char *autojoin = get_config_string (s->config, "autojoin");
-	if (autojoin)
-	{
-		struct strv v = strv_make ();
-		cstr_split (autojoin, ",", true, &v);
-		for (size_t i = 0; i < v.len; i++)
-		{
-			irc_send (s, "JOIN %s", v.vector[i]);
-			str_map_set (&joins_sent, v.vector[i], (void *) 1);
-		}
-		strv_free (&v);
-	}
-
-	// Then also rejoin any channels from the last disconnect
-	struct str_map_iter iter = str_map_iter_make (&s->irc_channels);
-	struct channel *channel;
-	while ((channel = str_map_iter_next (&iter)))
-	{
-		struct str target = str_make ();
-		str_append (&target, channel->name);
-
-		const char *key;
-		if ((key = str_map_find (&channel->param_modes, "k")))
-			str_append_printf (&target, " %s", key);
-
-		// When a channel is both autojoined and rejoined, both keys are tried
-		if (!channel->left_manually
-		 && !str_map_find (&joins_sent, target.str))
-			irc_send (s, "JOIN %s", target.str);
-		str_free (&target);
-	}
-
-	str_map_free (&joins_sent);
-}
-
-// --- Server I/O --------------------------------------------------------------
-
-static char *
-irc_process_hooks (struct server *s, char *input)
-{
-	log_server_debug (s, "#a>> \"#S\"#r", ATTR_JOIN, input);
-	uint64_t hash = siphash_wrapper (input, strlen (input));
-	LIST_FOR_EACH (struct hook, iter, s->ctx->irc_hooks)
-	{
-		struct irc_hook *hook = (struct irc_hook *) iter;
-		if (!(input = hook->filter (hook, s, input)))
-		{
-			log_server_debug (s, "#a>= #s#r", ATTR_JOIN, "thrown away by hook");
-			return NULL;
-		}
-
-		// The old input may get freed, so we compare against a hash of it
-		uint64_t new_hash = siphash_wrapper (input, strlen (input));
-		if (new_hash != hash)
-			log_server_debug (s, "#a>= \"#S\"#r", ATTR_JOIN, input);
-		hash = new_hash;
-	}
-	return input;
-}
-
-static void irc_process_message
-	(const struct irc_message *msg, struct server *s);
-
-static void
-irc_process_buffer_custom (struct server *s, struct str *buf)
-{
-	const char *start = buf->str, *end = start + buf->len;
-	for (const char *p = start; p + 1 < end; p++)
-	{
-		// Split the input on newlines
-		if (p[0] != '\r' || p[1] != '\n')
-			continue;
-
-		char *processed = irc_process_hooks (s, xstrndup (start, p - start));
-		start = p + 2;
-		if (!processed)
-			continue;
-
-		struct irc_message msg;
-		irc_parse_message (&msg, processed);
-		irc_process_message (&msg, s);
-		irc_free_message (&msg);
-
-		free (processed);
-	}
-	str_remove_slice (buf, 0, start - buf->str);
-}
-
-static enum socket_io_result
-irc_try_read (struct server *s)
-{
-	enum socket_io_result result = s->transport->try_read (s);
-	if (s->read_buffer.len >= (1 << 20))
-	{
-		// XXX: this is stupid; if anything, count it in dependence of time;
-		//   we could make transport_tls_try_read() limit the immediate amount
-		//   of data read like socket_io_try_read() does and remove this check
-		log_server_error (s, s->buffer,
-			"The IRC server seems to spew out data frantically");
-		return SOCKET_IO_ERROR;
-	}
-	if (s->read_buffer.len)
-		irc_process_buffer_custom (s, &s->read_buffer);
-	return result;
-}
-
-static enum socket_io_result
-irc_try_write (struct server *s)
-{
-	enum socket_io_result result = s->transport->try_write (s);
-	if (result == SOCKET_IO_OK)
-	{
-		// If we're flushing the write buffer and our job is complete, we send
-		// an EOF to the server, changing the state to IRC_HALF_CLOSED
-		if (s->state == IRC_CLOSING && !s->write_buffer.len)
-			irc_real_shutdown (s);
-	}
-	return result;
-}
-
-static bool
-irc_try_read_write (struct server *s)
-{
-	enum socket_io_result read_result;
-	enum socket_io_result write_result;
-	if ((read_result  = irc_try_read  (s)) == SOCKET_IO_ERROR
-	 || (write_result = irc_try_write (s)) == SOCKET_IO_ERROR)
-	{
-		log_server_error (s, s->buffer, "Server connection failed");
-		return false;
-	}
-
-	// FIXME: this may probably fire multiple times when we're flushing,
-	//   we should probably store a flag next to the state
-	if (read_result  == SOCKET_IO_EOF
-	 || write_result == SOCKET_IO_EOF)
-		log_server_error (s, s->buffer, "Server closed the connection");
-
-	// If the write needs to read and we receive an EOF, we can't flush
-	if (write_result == SOCKET_IO_EOF)
-		return false;
-
-	if (read_result  == SOCKET_IO_EOF)
-	{
-		// Eventually initiate shutdown to flush the write buffer
-		irc_shutdown (s);
-
-		// If there's nothing to write, we can disconnect now
-		if (s->state == IRC_HALF_CLOSED)
-			return false;
-	}
-	return true;
-}
-
-static void
-on_irc_ready (const struct pollfd *pfd, struct server *s)
-{
-	if (irc_try_read_write (s))
-	{
-		// XXX: shouldn't we rather wait for PONG messages?
-		irc_reset_connection_timeouts (s);
-		irc_update_poller (s, pfd);
-	}
-	else
-		// We don't want to keep the socket anymore
-		irc_disconnect (s);
-}
-
-// --- Plain transport ---------------------------------------------------------
-
-static enum socket_io_result
-transport_plain_try_read (struct server *s)
-{
-	enum socket_io_result result =
-		socket_io_try_read (s->socket, &s->read_buffer);
-	if (result == SOCKET_IO_ERROR)
-		print_debug ("%s: %s", __func__, strerror (errno));
-	return result;
-}
-
-static enum socket_io_result
-transport_plain_try_write (struct server *s)
-{
-	enum socket_io_result result =
-		socket_io_try_write (s->socket, &s->write_buffer);
-	if (result == SOCKET_IO_ERROR)
-		print_debug ("%s: %s", __func__, strerror (errno));
-	return result;
-}
-
-static int
-transport_plain_get_poll_events (struct server *s)
-{
-	int events = POLLIN;
-	if (s->write_buffer.len)
-		events |= POLLOUT;
-	return events;
-}
-
-static struct transport g_transport_plain =
-{
-	.try_read         = transport_plain_try_read,
-	.try_write        = transport_plain_try_write,
-	.get_poll_events  = transport_plain_get_poll_events,
-};
-
-// --- TLS transport -----------------------------------------------------------
-
-struct transport_tls_data
-{
-	SSL_CTX *ssl_ctx;                   ///< SSL context
-	SSL *ssl;                           ///< SSL connection
-	bool ssl_rx_want_tx;                ///< SSL_read() wants to write
-	bool ssl_tx_want_rx;                ///< SSL_write() wants to read
-};
-
-/// The index in SSL_CTX user data for a reference to the server
-static int g_transport_tls_data_index = -1;
-
-static int
-transport_tls_verify_callback (int preverify_ok, X509_STORE_CTX *ctx)
-{
-	SSL *ssl = X509_STORE_CTX_get_ex_data
-		(ctx, SSL_get_ex_data_X509_STORE_CTX_idx ());
-	struct server *s = SSL_CTX_get_ex_data
-		(SSL_get_SSL_CTX (ssl), g_transport_tls_data_index);
-
-	X509 *cert = X509_STORE_CTX_get_current_cert (ctx);
-	char *subject = X509_NAME_oneline (X509_get_subject_name (cert), NULL, 0);
-	char *issuer  = X509_NAME_oneline (X509_get_issuer_name  (cert), NULL, 0);
-
-	log_server_status (s, s->buffer, "Certificate subject: #s", subject);
-	log_server_status (s, s->buffer, "Certificate issuer: #s", issuer);
-
-	if (!preverify_ok)
-	{
-		log_server_error (s, s->buffer,
-			"Certificate verification failed: #s",
-			X509_verify_cert_error_string (X509_STORE_CTX_get_error (ctx)));
-	}
-
-	free (subject);
-	free (issuer);
-	return preverify_ok;
-}
-
-static bool
-transport_tls_init_ca_set (SSL_CTX *ssl_ctx, const char *file, const char *path,
-	struct error **e)
-{
-	ERR_clear_error ();
-
-	if (file || path)
-	{
-		if (SSL_CTX_load_verify_locations (ssl_ctx, file, path))
-			return true;
-
-		return error_set (e, "%s: %s",
-			"Failed to set locations for the CA certificate bundle",
-			xerr_describe_error ());
-	}
-
-	if (!SSL_CTX_set_default_verify_paths (ssl_ctx))
-		return error_set (e, "%s: %s",
-			"Couldn't load the default CA certificate bundle",
-			xerr_describe_error ());
-	return true;
-}
-
-static bool
-transport_tls_init_ca (struct server *s, SSL_CTX *ssl_ctx, struct error **e)
-{
-	const char *ca_file = get_config_string (s->config, "tls_ca_file");
-	const char *ca_path = get_config_string (s->config, "tls_ca_path");
-
-	char *full_ca_file = ca_file
-		? resolve_filename (ca_file, resolve_relative_config_filename) : NULL;
-	char *full_ca_path = ca_path
-		? resolve_filename (ca_path, resolve_relative_config_filename) : NULL;
-
-	bool ok = false;
-	if      (ca_file && !full_ca_file)
-		error_set (e, "Couldn't find the CA bundle file");
-	else if (ca_path && !full_ca_path)
-		error_set (e, "Couldn't find the CA bundle path");
-	else
-		ok = transport_tls_init_ca_set (ssl_ctx, full_ca_file, full_ca_path, e);
-
-	free (full_ca_file);
-	free (full_ca_path);
-	return ok;
-}
-
-static bool
-transport_tls_init_ctx (struct server *s, SSL_CTX *ssl_ctx, struct error **e)
-{
-	bool verify = get_config_boolean (s->config, "tls_verify");
-	SSL_CTX_set_verify (ssl_ctx, verify ? SSL_VERIFY_PEER : SSL_VERIFY_NONE,
-		transport_tls_verify_callback);
-
-	if (g_transport_tls_data_index == -1)
-		g_transport_tls_data_index =
-			SSL_CTX_get_ex_new_index (0, "server", NULL, NULL, NULL);
-	SSL_CTX_set_ex_data (ssl_ctx, g_transport_tls_data_index, s);
-
-	const char *ciphers = get_config_string (s->config, "tls_ciphers");
-	if (ciphers && !SSL_CTX_set_cipher_list (ssl_ctx, ciphers))
-		log_server_error (s, s->buffer,
-			"Failed to select any cipher from the cipher list");
-	SSL_CTX_set_mode (ssl_ctx,
-		SSL_MODE_ENABLE_PARTIAL_WRITE | SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER);
-
-	// Disable deprecated protocols (see RFC 7568)
-	SSL_CTX_set_options (ssl_ctx, SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3);
-
-	// This seems to consume considerable amounts of memory while not giving
-	// that much in return; in addition to that, I'm not sure about security
-	// (see RFC 7525, section 3.3)
-#ifdef SSL_OP_NO_COMPRESSION
-	SSL_CTX_set_options (ssl_ctx, SSL_OP_NO_COMPRESSION);
-#endif // SSL_OP_NO_COMPRESSION
-#ifdef LOMEM
-	SSL_CTX_set_mode (ssl_ctx, SSL_MODE_RELEASE_BUFFERS);
-#endif // LOMEM
-
-	struct error *error = NULL;
-	if (!transport_tls_init_ca (s, ssl_ctx, &error))
-	{
-		if (verify)
-		{
-			error_propagate (e, error);
-			return false;
-		}
-
-		// Just inform the user if we're not actually verifying
-		log_server_error (s, s->buffer, "#s", error->message);
-		error_free (error);
-	}
-	return true;
-}
-
-static bool
-transport_tls_init_cert (struct server *s, SSL *ssl, struct error **e)
-{
-	const char *tls_cert = get_config_string (s->config, "tls_cert");
-	if (!tls_cert)
-		return true;
-
-	ERR_clear_error ();
-
-	bool result = false;
-	char *path = resolve_filename (tls_cert, resolve_relative_config_filename);
-	if (!path)
-		error_set (e, "%s: %s", "Cannot open file", tls_cert);
-	// XXX: perhaps we should read the file ourselves for better messages
-	else if (!SSL_use_certificate_file (ssl, path, SSL_FILETYPE_PEM)
-		|| !SSL_use_PrivateKey_file (ssl, path, SSL_FILETYPE_PEM))
-		error_set (e, "%s: %s", "Setting the TLS client certificate failed",
-			xerr_describe_error ());
-	else
-		result = true;
-	free (path);
-	return result;
-}
-
-static bool
-transport_tls_init (struct server *s, const char *hostname, struct error **e)
-{
-	ERR_clear_error ();
-
-	struct error *error = NULL;
-	SSL_CTX *ssl_ctx = SSL_CTX_new (SSLv23_client_method ());
-	if (!ssl_ctx)
-		goto error_ssl_1;
-	if (!transport_tls_init_ctx (s, ssl_ctx, &error))
-		goto error_ssl_2;
-
-	SSL *ssl = SSL_new (ssl_ctx);
-	if (!ssl)
-		goto error_ssl_2;
-
-	if (!transport_tls_init_cert (s, ssl, &error))
-	{
-		// XXX: is this a reason to abort the connection?
-		log_server_error (s, s->buffer, "#s", error->message);
-		error_free (error);
-		error = NULL;
-	}
-
-	SSL_set_connect_state (ssl);
-	if (!SSL_set_fd (ssl, s->socket))
-		goto error_ssl_3;
-
-	// Enable SNI, FWIW; literal IP addresses aren't allowed
-	struct in6_addr dummy;
-	if (!inet_pton (AF_INET,  hostname, &dummy)
-	 && !inet_pton (AF_INET6, hostname, &dummy))
-		SSL_set_tlsext_host_name (ssl, hostname);
-
-	struct transport_tls_data *data = xcalloc (1, sizeof *data);
-	data->ssl_ctx = ssl_ctx;
-	data->ssl = ssl;
-
-	// Forces a handshake even if neither side wants to transmit data
-	data->ssl_rx_want_tx = true;
-
-	s->transport_data = data;
-	return true;
-
-error_ssl_3:
-	SSL_free (ssl);
-error_ssl_2:
-	SSL_CTX_free (ssl_ctx);
-error_ssl_1:
-	if (!error)
-		error_set (&error, "%s: %s", "Could not initialize TLS",
-			xerr_describe_error ());
-
-	error_propagate (e, error);
-	return false;
-}
-
-static void
-transport_tls_cleanup (struct server *s)
-{
-	struct transport_tls_data *data = s->transport_data;
-	if (data->ssl)
-		SSL_free (data->ssl);
-	if (data->ssl_ctx)
-		SSL_CTX_free (data->ssl_ctx);
-	free (data);
-}
-
-static enum socket_io_result
-transport_tls_try_read (struct server *s)
-{
-	struct transport_tls_data *data = s->transport_data;
-	if (data->ssl_tx_want_rx)
-		return SOCKET_IO_OK;
-
-	struct str *buf = &s->read_buffer;
-	data->ssl_rx_want_tx = false;
-	while (true)
-	{
-		ERR_clear_error ();
-		str_reserve (buf, 512);
-		int n_read = SSL_read (data->ssl, buf->str + buf->len,
-			buf->alloc - buf->len - 1 /* null byte */);
-
-		const char *error_info = NULL;
-		switch (xssl_get_error (data->ssl, n_read, &error_info))
-		{
-		case SSL_ERROR_NONE:
-			buf->str[buf->len += n_read] = '\0';
-			continue;
-		case SSL_ERROR_ZERO_RETURN:
-			return SOCKET_IO_EOF;
-		case SSL_ERROR_WANT_READ:
-			return SOCKET_IO_OK;
-		case SSL_ERROR_WANT_WRITE:
-			data->ssl_rx_want_tx = true;
-			return SOCKET_IO_OK;
-		case XSSL_ERROR_TRY_AGAIN:
-			continue;
-		default:
-			LOG_FUNC_FAILURE ("SSL_read", error_info);
-			return SOCKET_IO_ERROR;
-		}
-	}
-}
-
-static enum socket_io_result
-transport_tls_try_write (struct server *s)
-{
-	struct transport_tls_data *data = s->transport_data;
-	if (data->ssl_rx_want_tx)
-		return SOCKET_IO_OK;
-
-	struct str *buf = &s->write_buffer;
-	data->ssl_tx_want_rx = false;
-	while (buf->len)
-	{
-		ERR_clear_error ();
-		int n_written = SSL_write (data->ssl, buf->str, buf->len);
-
-		const char *error_info = NULL;
-		switch (xssl_get_error (data->ssl, n_written, &error_info))
-		{
-		case SSL_ERROR_NONE:
-			str_remove_slice (buf, 0, n_written);
-			continue;
-		case SSL_ERROR_ZERO_RETURN:
-			return SOCKET_IO_EOF;
-		case SSL_ERROR_WANT_WRITE:
-			return SOCKET_IO_OK;
-		case SSL_ERROR_WANT_READ:
-			data->ssl_tx_want_rx = true;
-			return SOCKET_IO_OK;
-		case XSSL_ERROR_TRY_AGAIN:
-			continue;
-		default:
-			LOG_FUNC_FAILURE ("SSL_write", error_info);
-			return SOCKET_IO_ERROR;
-		}
-	}
-	return SOCKET_IO_OK;
-}
-
-static int
-transport_tls_get_poll_events (struct server *s)
-{
-	struct transport_tls_data *data = s->transport_data;
-
-	int events = POLLIN;
-	if (s->write_buffer.len || data->ssl_rx_want_tx)
-		events |= POLLOUT;
-
-	// While we're waiting for an opposite event, we ignore the original
-	if (data->ssl_rx_want_tx)  events &= ~POLLIN;
-	if (data->ssl_tx_want_rx)  events &= ~POLLOUT;
-	return events;
-}
-
-static void
-transport_tls_in_before_shutdown (struct server *s)
-{
-	struct transport_tls_data *data = s->transport_data;
-	(void) SSL_shutdown (data->ssl);
-}
-
-static struct transport g_transport_tls =
-{
-	.init               = transport_tls_init,
-	.cleanup            = transport_tls_cleanup,
-	.try_read           = transport_tls_try_read,
-	.try_write          = transport_tls_try_write,
-	.get_poll_events    = transport_tls_get_poll_events,
-	.in_before_shutdown = transport_tls_in_before_shutdown,
-};
-
-// --- Connection establishment ------------------------------------------------
-
-static bool
-irc_autofill_user_info (struct server *s, struct error **e)
-{
-	const char *nicks    = get_config_string (s->config, "nicks");
-	const char *username = get_config_string (s->config, "username");
-	const char *realname = get_config_string (s->config, "realname");
-
-	if (nicks && *nicks && username && *username && realname)
-		return true;
-
-	// Read POSIX user info and fill the configuration if needed
-	errno = 0;
-	struct passwd *pwd = getpwuid (geteuid ());
-	if (!pwd)
-	{
-		return error_set (e,
-			"cannot retrieve user information: %s", strerror (errno));
-	}
-
-	// FIXME: set_config_strings() writes errors on its own
-	if (!nicks    || !*nicks)
-		set_config_string (s->config, "nicks",    pwd->pw_name);
-	if (!username || !*username)
-		set_config_string (s->config, "username", pwd->pw_name);
-
-	// Not all systems have the GECOS field but the vast majority does
-	if (!realname)
-	{
-		char *gecos = pwd->pw_gecos;
-
-		// The first comma, if any, ends the user's real name
-		char *comma = strchr (gecos, ',');
-		if (comma)
-			*comma = '\0';
-
-		set_config_string (s->config, "realname", gecos);
-	}
-
-	return true;
-}
-
-static char *
-irc_fetch_next_nickname (struct server *s)
-{
-	struct strv v = strv_make ();
-	cstr_split (get_config_string (s->config, "nicks"), ",", true, &v);
-
-	char *result = NULL;
-	if (s->nick_counter >= 0 && (size_t) s->nick_counter < v.len)
-		result = xstrdup (v.vector[s->nick_counter++]);
-	if ((size_t) s->nick_counter >= v.len)
-		// Exhausted all nicknames
-		s->nick_counter = -1;
-
-	strv_free (&v);
-	return result;
-}
-
-static void
-irc_register (struct server *s)
-{
-	// Fill in user information automatically if needed
-	irc_autofill_user_info (s, NULL);
-
-	const char *username = get_config_string (s->config, "username");
-	const char *realname = get_config_string (s->config, "realname");
-	hard_assert (username && realname);
-
-	// Start IRCv3 capability negotiation, with up to 3.2 features;
-	// at worst the server will ignore this or send a harmless error message
-	irc_send (s, "CAP LS 302");
-
-	const char *password = get_config_string (s->config, "password");
-	if (password)
-		irc_send (s, "PASS :%s", password);
-
-	s->nick_counter = 0;
-
-	char *nickname = irc_fetch_next_nickname (s);
-	if (nickname)
-		irc_send (s, "NICK :%s", nickname);
-	else
-		log_server_error (s, s->buffer, "No nicks present in configuration");
-	free (nickname);
-
-	// IRC servers may ignore the last argument if it's empty
-	irc_send (s, "USER %s 8 * :%s", username, *realname ? realname : " ");
-}
-
-static void
-irc_finish_connection (struct server *s, int socket, const char *hostname)
-{
-	struct app_context *ctx = s->ctx;
-
-	// Most of our output comes from the user one full command at a time and we
-	// use output buffering, so it makes a lot of sense to avoid these delays
-	int yes = 1;
-	soft_assert (setsockopt (socket, IPPROTO_TCP, TCP_NODELAY,
-		&yes, sizeof yes) != -1);
-
-	set_blocking (socket, false);
-	s->socket = socket;
-	s->transport = get_config_boolean (s->config, "tls")
-		? &g_transport_tls
-		: &g_transport_plain;
-
-	struct error *e = NULL;
-	if (s->transport->init && !s->transport->init (s, hostname, &e))
-	{
-		log_server_error (s, s->buffer, "Connection failed: #s", e->message);
-		error_free (e);
-
-		xclose (s->socket);
-		s->socket = -1;
-
-		s->transport = NULL;
-		return;
-	}
-
-	log_server_status (s, s->buffer, "Connection established");
-	s->state = IRC_CONNECTED;
-
-	s->socket_event = poller_fd_make (&ctx->poller, s->socket);
-	s->socket_event.dispatcher = (poller_fd_fn) on_irc_ready;
-	s->socket_event.user_data = s;
-
-	irc_update_poller (s, NULL);
-	irc_reset_connection_timeouts (s);
-	irc_register (s);
-
-	refresh_prompt (s->ctx);
-}
-
-/// Unwrap IPv6 addresses in format_host_port_pair() format
-static void
-irc_split_host_port (char *s, char **host, char **port)
-{
-	*host = s;
-	*port = "6667";
-
-	char *right_bracket = strchr (s, ']');
-	if (s[0] == '[' && right_bracket)
-	{
-		*right_bracket = '\0';
-		*host = s + 1;
-		s = right_bracket + 1;
-	}
-
-	char *colon = strchr (s, ':');
-	if (colon)
-	{
-		*colon = '\0';
-		*port = colon + 1;
-	}
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-irc_on_connector_connecting (void *user_data, const char *address)
-{
-	struct server *s = user_data;
-	log_server_status (s, s->buffer, "Connecting to #s...", address);
-}
-
-static void
-irc_on_connector_error (void *user_data, const char *error)
-{
-	struct server *s = user_data;
-	log_server_error (s, s->buffer, "Connection failed: #s", error);
-}
-
-static void
-irc_on_connector_failure (void *user_data)
-{
-	struct server *s = user_data;
-	irc_destroy_connector (s);
-	irc_queue_reconnect (s);
-}
-
-static void
-irc_on_connector_connected (void *user_data, int socket, const char *hostname)
-{
-	struct server *s = user_data;
-	char *hostname_copy = xstrdup (hostname);
-	irc_destroy_connector (s);
-	irc_finish_connection (s, socket, hostname_copy);
-	free (hostname_copy);
-}
-
-static void
-irc_setup_connector (struct server *s, const struct strv *addresses)
-{
-	struct connector *connector = xmalloc (sizeof *connector);
-	connector_init (connector, &s->ctx->poller);
-	s->connector = connector;
-
-	connector->user_data     = s;
-	connector->on_connecting = irc_on_connector_connecting;
-	connector->on_error      = irc_on_connector_error;
-	connector->on_connected  = irc_on_connector_connected;
-	connector->on_failure    = irc_on_connector_failure;
-
-	for (size_t i = 0; i < addresses->len; i++)
-	{
-		char *host, *port;
-		irc_split_host_port (addresses->vector[i], &host, &port);
-		connector_add_target (connector, host, port);
-	}
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-// TODO: see if we can further merge code for the two connectors, for example
-//   by making SOCKS 4A and 5 mere plugins for the connector, or by using
-//   a virtual interface common to them both (seems more likely)
-
-static void
-irc_on_socks_connecting (void *user_data,
-	const char *address, const char *via, const char *version)
-{
-	struct server *s = user_data;
-	log_server_status (s, s->buffer,
-		"Connecting to #s via #s (#s)...", address, via, version);
-}
-
-static bool
-irc_setup_connector_socks (struct server *s, const struct strv *addresses,
-	struct error **e)
-{
-	const char *socks_host = get_config_string (s->config, "socks_host");
-	int64_t socks_port_int = get_config_integer (s->config, "socks_port");
-
-	if (!socks_host)
-		return false;
-
-	struct socks_connector *connector = xmalloc (sizeof *connector);
-	socks_connector_init (connector, &s->ctx->poller);
-	s->socks_conn = connector;
-
-	connector->user_data     = s;
-	connector->on_connecting = irc_on_socks_connecting;
-	connector->on_error      = irc_on_connector_error;
-	connector->on_connected  = irc_on_connector_connected;
-	connector->on_failure    = irc_on_connector_failure;
-
-	for (size_t i = 0; i < addresses->len; i++)
-	{
-		char *host, *port;
-		irc_split_host_port (addresses->vector[i], &host, &port);
-
-		if (!socks_connector_add_target (connector, host, port, e))
-			return false;
-	}
-
-	char *service = xstrdup_printf ("%" PRIi64, socks_port_int);
-	socks_connector_run (connector, socks_host, service,
-		get_config_string (s->config, "socks_username"),
-		get_config_string (s->config, "socks_password"));
-	free (service);
-
-	// The SOCKS connector can have already failed; we mustn't return true then
-	if (!s->socks_conn)
-		return error_set (e, "SOCKS connection failed");
-	return true;
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-irc_initiate_connect (struct server *s)
-{
-	hard_assert (s->state == IRC_DISCONNECTED);
-
-	const char *addresses = get_config_string (s->config, "addresses");
-	if (!addresses || !addresses[strspn (addresses, ",")])
-	{
-		// No sense in trying to reconnect
-		log_server_error (s, s->buffer,
-			"No addresses specified in configuration");
-		return;
-	}
-
-	struct strv servers = strv_make ();
-	cstr_split (addresses, ",", true, &servers);
-
-	struct error *e = NULL;
-	if (!irc_setup_connector_socks (s, &servers, &e) && !e)
-		irc_setup_connector (s, &servers);
-
-	strv_free (&servers);
-
-	if (e)
-	{
-		irc_destroy_connector (s);
-
-		log_server_error (s, s->buffer, "#s", e->message);
-		error_free (e);
-		irc_queue_reconnect (s);
-	}
-	else if (s->state != IRC_CONNECTED)
-		s->state = IRC_CONNECTING;
-}
-
-// --- Input prompt ------------------------------------------------------------
-
-static void
-make_unseen_prefix (struct app_context *ctx, struct str *active_buffers)
-{
-	size_t buffer_no = 0;
-	LIST_FOR_EACH (struct buffer, iter, ctx->buffers)
-	{
-		buffer_no++;
-		if (!(iter->new_messages_count - iter->new_unimportant_count)
-		 || iter == ctx->current_buffer)
-			continue;
-
-		if (active_buffers->len)
-			str_append_c (active_buffers, ',');
-		if (iter->highlighted)
-			str_append_c (active_buffers, '!');
-		str_append_printf (active_buffers, "%zu", buffer_no);
-	}
-}
-
-static void
-make_chanmode_postfix (struct channel *channel, struct str *modes)
-{
-	if (channel->no_param_modes.len)
-		str_append (modes, channel->no_param_modes.str);
-
-	struct str_map_iter iter = str_map_iter_make (&channel->param_modes);
-	char *param;
-	while ((param = str_map_iter_next (&iter)))
-		str_append_c (modes, iter.link->key[0]);
-}
-
-static void
-make_server_postfix_registered (struct buffer *buffer, struct str *output)
-{
-	struct server *s = buffer->server;
-	if (buffer->type == BUFFER_CHANNEL)
-	{
-		struct channel_user *channel_user =
-			irc_channel_get_user (buffer->channel, s->irc_user);
-		if (channel_user)
-			irc_get_channel_user_prefix (s, channel_user, output);
-	}
-	str_append (output, s->irc_user->nickname);
-	if (s->irc_user_mode.len)
-		str_append_printf (output, "(%s)", s->irc_user_mode.str);
-}
-
-static void
-make_server_postfix (struct buffer *buffer, struct str *output)
-{
-	struct server *s = buffer->server;
-	str_append_c (output, ' ');
-	if (!irc_is_connected (s))
-		str_append (output, "(disconnected)");
-	else if (s->state != IRC_REGISTERED)
-		str_append (output, "(unregistered)");
-	else
-		make_server_postfix_registered (buffer, output);
-}
-
-static void
-make_prompt (struct app_context *ctx, struct str *output)
-{
-	LIST_FOR_EACH (struct hook, iter, ctx->prompt_hooks)
-	{
-		struct prompt_hook *hook = (struct prompt_hook *) iter;
-		char *made = hook->make (hook);
-		if (made)
-		{
-			str_append (output, made);
-			free (made);
-			return;
-		}
-	}
-
-	struct buffer *buffer = ctx->current_buffer;
-	if (!buffer)
-		return;
-
-	str_append_c (output, '[');
-
-	struct str active_buffers = str_make ();
-	make_unseen_prefix (ctx, &active_buffers);
-	if (active_buffers.len)
-		str_append_printf (output, "(%s) ", active_buffers.str);
-	str_free (&active_buffers);
-
-	str_append_printf (output, "%d:%s",
-		buffer_get_index (ctx, buffer), buffer->name);
-	// We remember old modes, don't show them while we're not on the channel
-	if (buffer->type == BUFFER_CHANNEL
-	 && buffer->channel->users_len)
-	{
-		struct str modes = str_make ();
-		make_chanmode_postfix (buffer->channel, &modes);
-		if (modes.len)
-			str_append_printf (output, "(+%s)", modes.str);
-		str_free (&modes);
-
-		str_append_printf (output, "{%zu}", buffer->channel->users_len);
-	}
-	if (buffer->hide_unimportant)
-		str_append (output, "<H>");
-
-	if (buffer != ctx->global_buffer)
-		make_server_postfix (buffer, output);
-
-	str_append_c (output, ']');
-	str_append_c (output, ' ');
-}
-
-static void
-input_maybe_set_prompt (struct input *self, char *new_prompt)
-{
-	// Fix libedit's expectations to see a non-control character following
-	// the end mark (see prompt.c and literal.c) by cleaning this up
-	for (char *p = new_prompt; *p; )
-		if (p[0] == INPUT_END_IGNORE && p[1] == INPUT_START_IGNORE)
-			memmove (p, p + 2, strlen (p + 2) + 1);
-		else
-			p++;
-
-	// Redisplay can be an expensive operation
-	const char *prompt = CALL (self, get_prompt);
-	if (prompt && !strcmp (new_prompt, prompt))
-		free (new_prompt);
-	else
-		CALL_ (self, set_prompt, new_prompt);
-}
-
-static void
-on_refresh_prompt (struct app_context *ctx)
-{
-	poller_idle_reset (&ctx->prompt_event);
-	bool have_attributes = !!get_attribute_printer (stdout);
-
-	struct str prompt = str_make ();
-	make_prompt (ctx, &prompt);
-
-	// libedit has a weird bug where it misapplies ignores when they're not
-	// followed by anything else, so let's try to move a trailing space,
-	// which will at least fix the default prompt.
-	const char *attributed_suffix = "";
-#ifdef HAVE_EDITLINE
-	if (have_attributes && prompt.len && prompt.str[prompt.len - 1] == ' ')
-	{
-		prompt.str[--prompt.len] = 0;
-		attributed_suffix = " ";
-	}
-
-	// Also enable a uniform interface for prompt hooks by assuming it uses
-	// GNU Readline escapes: turn this into libedit's almost-flip-flop
-	for (size_t i = 0; i < prompt.len; i++)
-		if (prompt.str[i] == '\x01' || prompt.str[i] == '\x02')
-			prompt.str[i] = INPUT_START_IGNORE /* == INPUT_END_IGNORE */;
-#endif // HAVE_EDITLINE
-
-	char *localized = iconv_xstrdup (ctx->term_from_utf8, prompt.str, -1, NULL);
-	str_free (&prompt);
-
-	if (have_attributes)
-	{
-		// XXX: to be completely correct, we should use tputs, but we cannot
-		input_maybe_set_prompt (ctx->input, xstrdup_printf ("%c%s%c%s%c%s%c%s",
-			INPUT_START_IGNORE, ctx->attrs[ATTR_PROMPT],
-			INPUT_END_IGNORE,
-			localized,
-			INPUT_START_IGNORE, ctx->attrs[ATTR_RESET],
-			INPUT_END_IGNORE,
-			attributed_suffix));
-		free (localized);
-	}
-	else
-		input_maybe_set_prompt (ctx->input, localized);
-}
-
-// --- Helpers -----------------------------------------------------------------
-
-static struct buffer *
-irc_get_buffer_for_message (struct server *s,
-	const struct irc_message *msg, const char *target)
-{
-	// TODO: display such messages differently
-	target = irc_skip_statusmsg (s, target);
-
-	struct buffer *buffer = str_map_find (&s->irc_buffer_map, target);
-	if (irc_is_channel (s, target))
-	{
-		struct channel *channel = str_map_find (&s->irc_channels, target);
-		hard_assert (channel || !buffer);
-
-		// This is weird
-		if (!channel)
-			return NULL;
-	}
-	else if (!buffer)
-	{
-		// Outgoing messages needn't have a prefix, no buffer associated
-		if (!msg->prefix)
-			return NULL;
-
-		// Don't make user buffers for servers (they can send NOTICEs)
-		if (!irc_find_userhost (msg->prefix))
-			return s->buffer;
-
-		char *nickname = irc_cut_nickname (msg->prefix);
-		if (irc_is_this_us (s, target))
-			buffer = irc_get_or_make_user_buffer (s, nickname);
-		free (nickname);
-
-		// With the IRCv3.2 echo-message capability, we can receive messages
-		// as they are delivered to the target; in that case we return NULL
-		// and the caller should check the origin
-	}
-	return buffer;
-}
-
-static bool
-irc_is_highlight (struct server *s, const char *message)
-{
-	// This may be called by notices before even successfully registering
-	if (!s->irc_user)
-		return false;
-
-	// Strip formatting from the message so that it doesn't interfere
-	// with nickname detection (colour sequences in particular)
-	struct formatter f = formatter_make (s->ctx, NULL);
-	formatter_parse_mirc (&f, message);
-
-	struct str stripped = str_make ();
-	for (size_t i = 0; i < f.items_len; i++)
-	{
-		if (f.items[i].type == FORMATTER_ITEM_TEXT)
-			str_append (&stripped, f.items[i].text);
-	}
-	formatter_free (&f);
-
-	// Well, this is rather crude but it should make most users happy.
-	// We could do this in proper Unicode but that's two more conversions per
-	// message when both the nickname and the message are likely valid UTF-8.
-	char *copy = str_steal (&stripped);
-	cstr_transform (copy, s->irc_tolower);
-
-	char *nick = xstrdup (s->irc_user->nickname);
-	cstr_transform (nick, s->irc_tolower);
-
-	// Special characters allowed in nicknames by RFC 2812: []\`_^{|} and -
-	// Also excluded from the ASCII: common user channel prefixes: +%@&~
-	// XXX: why did I exclude those?  It won't match when IRC newbies use them.
-	const char *delimiters = ",.;:!?()<>/=#$* \t\r\n\v\f\"'";
-
-	bool result = false;
-	char *save = NULL;
-	for (char *token = strtok_r (copy, delimiters, &save);
-		token; token = strtok_r (NULL, delimiters, &save))
-		if (!strcmp (token, nick))
-		{
-			result = true;
-			break;
-		}
-
-	free (copy);
-	free (nick);
-	return result;
-}
-
-static char *
-irc_get_privmsg_prefix (struct server *s, struct user *user, const char *target)
-{
-	struct str prefix = str_make ();
-	if (user && irc_is_channel (s, (target = irc_skip_statusmsg (s, target))))
-	{
-		struct channel *channel;
-		struct channel_user *channel_user;
-		if ((channel = str_map_find (&s->irc_channels, target))
-		 && (channel_user = irc_channel_get_user (channel, user)))
-			irc_get_channel_user_prefix (s, channel_user, &prefix);
-	}
-	return str_steal (&prefix);
-}
-
-// --- Mode processor ----------------------------------------------------------
-
-struct mode_processor
-{
-	char **params;                      ///< Mode string parameters
-	bool adding;                        ///< Currently adding modes
-	char mode_char;                     ///< Currently processed mode char
-
-	// User data:
-
-	struct server *s;                   ///< Server
-	struct channel *channel;            ///< The channel being modified
-	unsigned changes;                   ///< Count of all changes
-	unsigned usermode_changes;          ///< Count of all usermode changes
-};
-
-/// Process a single mode character
-typedef bool (*mode_processor_apply_fn) (struct mode_processor *);
-
-static const char *
-mode_processor_next_param (struct mode_processor *self)
-{
-	if (!*self->params)
-		return NULL;
-	return *self->params++;
-}
-
-static void
-mode_processor_run (struct mode_processor *self,
-	char **params, mode_processor_apply_fn apply_cb)
-{
-	self->params = params;
-
-	const char *mode_string;
-	while ((mode_string = mode_processor_next_param (self)))
-	{
-		self->adding = true;
-		while ((self->mode_char = *mode_string++))
-		{
-			if      (self->mode_char == '+') self->adding = true;
-			else if (self->mode_char == '-') self->adding = false;
-			else if (!apply_cb (self))
-				break;
-		}
-	}
-}
-
-static int
-mode_char_cmp (const void *a, const void *b)
-{
-	return *(const char *) a - *(const char *) b;
-}
-
-/// Add/remove the current mode character to/from the given ordered list
-static void
-mode_processor_toggle (struct mode_processor *self, struct str *modes)
-{
-	const char *pos = strchr (modes->str, self->mode_char);
-	if (self->adding == !!pos)
-		return;
-
-	if (self->adding)
-	{
-		str_append_c (modes, self->mode_char);
-		qsort (modes->str, modes->len, 1, mode_char_cmp);
-	}
-	else
-		str_remove_slice (modes, pos - modes->str, 1);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-mode_processor_do_user (struct mode_processor *self)
-{
-	const char *nickname;
-	struct user *user;
-	struct channel_user *channel_user;
-	if (!(nickname = mode_processor_next_param (self))
-	 || !(user = str_map_find (&self->s->irc_users, nickname))
-	 || !(channel_user = irc_channel_get_user (self->channel, user)))
-		return;
-
-	// Translate mode character to user prefix character
-	const char *all_prefixes = self->s->irc_chanuser_prefixes;
-	const char *all_modes    = self->s->irc_chanuser_modes;
-
-	const char *mode = strchr (all_modes, self->mode_char);
-	hard_assert (mode && (size_t) (mode - all_modes) < strlen (all_prefixes));
-	char prefix = all_prefixes[mode - all_modes];
-
-	char **prefixes = &channel_user->prefixes;
-	char *pos = strchr (*prefixes, prefix);
-	if (self->adding == !!pos)
-		return;
-
-	if (self->adding)
-	{
-		// Add the new mode prefix while retaining the right order
-		struct str buf = str_make ();
-		for (const char *p = all_prefixes; *p; p++)
-			if (*p == prefix || strchr (*prefixes, *p))
-				str_append_c (&buf, *p);
-		cstr_set (prefixes, str_steal (&buf));
-	}
-	else
-		memmove (pos, pos + 1, strlen (pos));
-}
-
-static void
-mode_processor_do_param_always (struct mode_processor *self)
-{
-	const char *param = NULL;
-	if (!(param = mode_processor_next_param (self)))
-		return;
-
-	char key[2] = { self->mode_char, 0 };
-	str_map_set (&self->channel->param_modes, key,
-		self->adding ? xstrdup (param) : NULL);
-}
-
-static void
-mode_processor_do_param_when_set (struct mode_processor *self)
-{
-	const char *param = NULL;
-	if (self->adding && !(param = mode_processor_next_param (self)))
-		return;
-
-	char key[2] = { self->mode_char, 0 };
-	str_map_set (&self->channel->param_modes, key,
-		self->adding ? xstrdup (param) : NULL);
-}
-
-static bool
-mode_processor_apply_channel (struct mode_processor *self)
-{
-	self->changes++;
-	if      (strchr (self->s->irc_chanuser_modes,           self->mode_char))
-	{
-		self->usermode_changes++;
-		mode_processor_do_user (self);
-	}
-	else if (strchr (self->s->irc_chanmodes_list,           self->mode_char))
-		// Nothing to do here, just skip the next argument if there's any
-		(void) mode_processor_next_param (self);
-	else if (strchr (self->s->irc_chanmodes_param_always,   self->mode_char))
-		mode_processor_do_param_always (self);
-	else if (strchr (self->s->irc_chanmodes_param_when_set, self->mode_char))
-		mode_processor_do_param_when_set (self);
-	else if (strchr (self->s->irc_chanmodes_param_never,    self->mode_char))
-		mode_processor_toggle (self, &self->channel->no_param_modes);
-	else
-		// It's not safe to continue, results could be undesired
-		return false;
-	return true;
-}
-
-/// Returns whether the change has only affected channel user modes
-static bool
-irc_handle_mode_channel (struct channel *channel, char **params)
-{
-	struct mode_processor p = { .s = channel->s, .channel = channel };
-	mode_processor_run (&p, params, mode_processor_apply_channel);
-	return p.changes == p.usermode_changes;
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static bool
-mode_processor_apply_user (struct mode_processor *self)
-{
-	mode_processor_toggle (self, &self->s->irc_user_mode);
-	return true;
-}
-
-static void
-irc_handle_mode_user (struct server *s, char **params)
-{
-	struct mode_processor p = { .s = s };
-	mode_processor_run (&p, params, mode_processor_apply_user);
-}
-
-// --- Output processing -------------------------------------------------------
-
-// Both user and plugins can send whatever the heck they want to,
-// we need to parse it back so that it's evident what's happening
-
-static void
-irc_handle_sent_cap (struct server *s, const struct irc_message *msg)
-{
-	if (msg->params.len < 1)
-		return;
-
-	const char *subcommand = msg->params.vector[0];
-	const char *args = (msg->params.len > 1) ? msg->params.vector[1] : "";
-	if (!strcasecmp_ascii (subcommand, "REQ"))
-		log_server_status (s, s->buffer,
-			"#s: #S", "Capabilities requested", args);
-}
-
-static void
-irc_handle_sent_notice_text (struct server *s,
-	const struct irc_message *msg, struct str *text)
-{
-	const char *target = msg->params.vector[0];
-	struct buffer *buffer = irc_get_buffer_for_message (s, msg, target);
-	if (buffer && soft_assert (s->irc_user))
-		log_outcoming_notice (s, buffer, s->irc_user->nickname, text->str);
-	else
-		log_outcoming_orphan_notice (s, target, text->str);
-}
-
-static void
-irc_handle_sent_notice (struct server *s, const struct irc_message *msg)
-{
-	if (msg->params.len < 2 || s->cap_echo_message)
-		return;
-
-	// This ignores empty messages which we should not normally send
-	struct ctcp_chunk *chunks = ctcp_parse (msg->params.vector[1]);
-	LIST_FOR_EACH (struct ctcp_chunk, iter, chunks)
-	{
-		if (iter->is_extended)
-			log_ctcp_reply (s, msg->params.vector[0],
-				xstrdup_printf ("%s %s", iter->tag.str, iter->text.str));
-		else
-			irc_handle_sent_notice_text (s, msg, &iter->text);
-	}
-	ctcp_destroy (chunks);
-}
-
-static void
-irc_handle_sent_privmsg_text (struct server *s,
-	const struct irc_message *msg, struct str *text, bool is_action)
-{
-	const char *target = msg->params.vector[0];
-	struct buffer *buffer = irc_get_buffer_for_message (s, msg, target);
-	if (buffer && soft_assert (s->irc_user))
-	{
-		char *prefixes = irc_get_privmsg_prefix (s, s->irc_user, target);
-		if (is_action)
-			log_outcoming_action (s, buffer, s->irc_user->nickname, text->str);
-		else
-			log_outcoming_privmsg (s, buffer,
-				prefixes, s->irc_user->nickname, text->str);
-		free (prefixes);
-	}
-	else
-		// TODO: also handle actions here
-		log_outcoming_orphan_privmsg (s, target, text->str);
-}
-
-static void
-irc_handle_sent_privmsg (struct server *s, const struct irc_message *msg)
-{
-	if (msg->params.len < 2 || s->cap_echo_message)
-		return;
-
-	// This ignores empty messages which we should not normally send
-	// and the server is likely going to reject with an error reply anyway
-	struct ctcp_chunk *chunks = ctcp_parse (msg->params.vector[1]);
-	LIST_FOR_EACH (struct ctcp_chunk, iter, chunks)
-	{
-		if (!iter->is_extended)
-			irc_handle_sent_privmsg_text (s, msg, &iter->text, false);
-		else if (!strcmp (iter->tag.str, "ACTION"))
-			irc_handle_sent_privmsg_text (s, msg, &iter->text, true);
-		else
-			log_ctcp_query (s, msg->params.vector[0], iter->tag.str);
-	}
-	ctcp_destroy (chunks);
-}
-
-static struct irc_handler
-{
-	const char *name;
-	void (*handler) (struct server *s, const struct irc_message *msg);
-}
-g_irc_sent_handlers[] =
-{
-	// This list needs to stay sorted
-	{ "CAP",     irc_handle_sent_cap     },
-	{ "NOTICE",  irc_handle_sent_notice  },
-	{ "PRIVMSG", irc_handle_sent_privmsg },
-};
-
-static int
-irc_handler_cmp_by_name (const void *a, const void *b)
-{
-	const struct irc_handler *first  = a;
-	const struct irc_handler *second = b;
-	return strcasecmp_ascii (first->name, second->name);
-}
-
-static void
-irc_process_sent_message (const struct irc_message *msg, struct server *s)
-{
-	// The server is free to reject even a matching prefix
-	// XXX: even though no prefix should normally be present, this is racy
-	if (msg->prefix && !irc_is_this_us (s, msg->prefix))
-		return;
-
-	struct irc_handler key = { .name = msg->command };
-	struct irc_handler *handler = bsearch (&key, g_irc_sent_handlers,
-		N_ELEMENTS (g_irc_sent_handlers), sizeof key, irc_handler_cmp_by_name);
-	if (handler)
-		handler->handler (s, msg);
-}
-
-// --- Input handling ----------------------------------------------------------
-
-static void
-irc_handle_authenticate (struct server *s, const struct irc_message *msg)
-{
-	if (msg->params.len < 1)
-		return;
-
-	// Empty challenge -> empty response for e.g. SASL EXTERNAL,
-	// abort anything else as it doesn't make much sense to let the user do it
-	if (!strcmp (msg->params.vector[0], "+"))
-		irc_send (s, "AUTHENTICATE +");
-	else
-		irc_send (s, "AUTHENTICATE *");
-}
-
-static void
-irc_handle_away (struct server *s, const struct irc_message *msg)
-{
-	if (!msg->prefix)
-		return;
-
-	char *nickname = irc_cut_nickname (msg->prefix);
-	struct user *user = str_map_find (&s->irc_users, nickname);
-	free (nickname);
-
-	// Let's allow the server to make us away
-	if (user)
-		user->away = !!msg->params.len;
-}
-
-static void
-irc_process_cap_ls (struct server *s)
-{
-	log_server_status (s, s->buffer,
-		"#s: #&S", "Capabilities supported", strv_join (&s->cap_ls_buf, " "));
-
-	struct strv chosen = strv_make ();
-	struct strv use    = strv_make ();
-
-	cstr_split (get_config_string (s->config, "capabilities"), ",", true, &use);
-
-	// Filter server capabilities for ones we can make use of
-	for (size_t i = 0; i < s->cap_ls_buf.len; i++)
-	{
-		const char *cap = s->cap_ls_buf.vector[i];
-		size_t cap_name_len = strcspn (cap, "=");
-		for (size_t k = 0; k < use.len; k++)
-			if (!strncasecmp_ascii (use.vector[k], cap, cap_name_len))
-				strv_append_owned (&chosen, xstrndup (cap, cap_name_len));
-	}
-	strv_reset (&s->cap_ls_buf);
-
-	char *chosen_str = strv_join (&chosen, " ");
-	strv_free (&chosen);
-	strv_free (&use);
-
-	// XXX: with IRCv3.2, this may end up being too long for one message,
-	// and we need to be careful with CAP END.  One probably has to count
-	// the number of sent CAP REQ vs the number of received CAP ACK/NAK.
-	if (s->state == IRC_CONNECTED)
-		irc_send (s, "CAP REQ :%s", chosen_str);
-
-	free (chosen_str);
-}
-
-static void
-irc_toggle_cap (struct server *s, const char *cap, bool active)
-{
-	if (!strcasecmp_ascii (cap, "echo-message")) s->cap_echo_message = active;
-	if (!strcasecmp_ascii (cap, "away-notify"))  s->cap_away_notify  = active;
-	if (!strcasecmp_ascii (cap, "sasl"))         s->cap_sasl         = active;
-}
-
-static void
-irc_try_finish_cap_negotiation (struct server *s)
-{
-	// It does not make sense to do this post-registration, although it would
-	// not hurt either, as the server must ignore it in that case
-	if (s->state == IRC_CONNECTED)
-		irc_send (s, "CAP END");
-}
-
-static void
-irc_handle_cap (struct server *s, const struct irc_message *msg)
-{
-	if (msg->params.len < 2)
-		return;
-
-	struct strv v = strv_make ();
-	const char *args = "";
-	if (msg->params.len > 2)
-		cstr_split ((args = msg->params.vector[2]), " ", true, &v);
-
-	const char *subcommand = msg->params.vector[1];
-	if (!strcasecmp_ascii (subcommand, "ACK"))
-	{
-		log_server_status (s, s->buffer,
-			"#s: #S", "Capabilities acknowledged", args);
-		for (size_t i = 0; i < v.len; i++)
-		{
-			const char *cap = v.vector[i];
-			bool active = true;
-			if (*cap == '-')
-			{
-				active = false;
-				cap++;
-			}
-			irc_toggle_cap (s, cap, active);
-		}
-		if (s->cap_sasl && s->transport == &g_transport_tls)
-			irc_send (s, "AUTHENTICATE EXTERNAL");
-		else
-			irc_try_finish_cap_negotiation (s);
-	}
-	else if (!strcasecmp_ascii (subcommand, "NAK"))
-	{
-		log_server_error (s, s->buffer,
-			"#s: #S", "Capabilities not acknowledged", args);
-		irc_try_finish_cap_negotiation (s);
-	}
-	else if (!strcasecmp_ascii (subcommand, "DEL"))
-	{
-		log_server_error (s, s->buffer,
-			"#s: #S", "Capabilities deleted", args);
-		for (size_t i = 0; i < v.len; i++)
-			irc_toggle_cap (s, v.vector[i], false);
-	}
-	else if (!strcasecmp_ascii (subcommand, "LS"))
-	{
-
-		if (msg->params.len > 3 && !strcmp (args, "*"))
-			cstr_split (msg->params.vector[3], " ", true, &s->cap_ls_buf);
-		else
-		{
-			strv_append_vector (&s->cap_ls_buf, v.vector);
-			irc_process_cap_ls (s);
-		}
-	}
-
-	strv_free (&v);
-}
-
-static void
-irc_handle_chghost (struct server *s, const struct irc_message *msg)
-{
-	if (!msg->prefix || msg->params.len < 2)
-		return;
-
-	char *nickname = irc_cut_nickname (msg->prefix);
-	struct user *user = str_map_find (&s->irc_users, nickname);
-	free (nickname);
-	if (!user)
-		return;
-
-	char *new_prefix = xstrdup_printf ("%s!%s@%s", user->nickname,
-		msg->params.vector[0], msg->params.vector[1]);
-
-	if (irc_is_this_us (s, msg->prefix))
-	{
-		cstr_set (&s->irc_user_host, xstrdup_printf ("%s@%s",
-			msg->params.vector[0], msg->params.vector[1]));
-
-		log_chghost_self (s, s->buffer, new_prefix);
-
-		// Log a message in all open buffers on this server
-		struct str_map_iter iter = str_map_iter_make (&s->irc_buffer_map);
-		struct buffer *buffer;
-		while ((buffer = str_map_iter_next (&iter)))
-			log_chghost_self (s, buffer, new_prefix);
-	}
-	else
-	{
-		// Log a message in any PM buffer
-		struct buffer *buffer =
-			str_map_find (&s->irc_buffer_map, user->nickname);
-		if (buffer)
-			log_chghost (s, buffer, msg->prefix, new_prefix);
-
-		// Log a message in all channels the user is in
-		LIST_FOR_EACH (struct user_channel, iter, user->channels)
-		{
-			buffer = str_map_find (&s->irc_buffer_map, iter->channel->name);
-			hard_assert (buffer != NULL);
-			log_chghost (s, buffer, msg->prefix, new_prefix);
-		}
-	}
-
-	free (new_prefix);
-}
-
-static void
-irc_handle_error (struct server *s, const struct irc_message *msg)
-{
-	if (msg->params.len < 1)
-		return;
-
-	log_server_error (s, s->buffer, "#m", msg->params.vector[0]);
-}
-
-static void
-irc_handle_invite (struct server *s, const struct irc_message *msg)
-{
-	if (!msg->prefix || msg->params.len < 2)
-		return;
-
-	const char *target       = msg->params.vector[0];
-	const char *channel_name = msg->params.vector[1];
-
-	struct buffer *buffer;
-	if (!(buffer = str_map_find (&s->irc_buffer_map, channel_name)))
-		buffer = s->buffer;
-
-	// IRCv3.2 invite-notify extension allows the target to be someone else
-	if (irc_is_this_us (s, target))
-		log_server_status (s, buffer,
-			"#n has invited you to #S", msg->prefix, channel_name);
-	else
-		log_server_status (s, buffer,
-			"#n has invited #n to #S", msg->prefix, target, channel_name);
-}
-
-static void
-irc_handle_join (struct server *s, const struct irc_message *msg)
-{
-	if (!msg->prefix || msg->params.len < 1)
-		return;
-
-	const char *channel_name = msg->params.vector[0];
-	if (!irc_is_channel (s, channel_name))
-		return;
-
-	struct channel *channel = str_map_find (&s->irc_channels, channel_name);
-	struct buffer *buffer = str_map_find (&s->irc_buffer_map, channel_name);
-	hard_assert (channel || !buffer);
-
-	// We've joined a new channel
-	if (!channel)
-	{
-		// This is weird, ignoring
-		if (!irc_is_this_us (s, msg->prefix))
-			return;
-
-		buffer = buffer_new (s->ctx->input,
-			BUFFER_CHANNEL, irc_make_buffer_name (s, channel_name));
-		buffer->server = s;
-		buffer->channel = channel =
-			irc_make_channel (s, xstrdup (channel_name));
-		str_map_set (&s->irc_buffer_map, channel->name, buffer);
-
-		buffer_add (s->ctx, buffer);
-
-		char *input = CALL (s->ctx->input, get_line);
-		if (!*input)
-			buffer_activate (s->ctx, buffer);
-		else
-			buffer->highlighted = true;
-		free (input);
-	}
-
-	if (irc_is_this_us (s, msg->prefix))
-	{
-		// Reset the field so that we rejoin the channel after reconnecting
-		channel->left_manually = false;
-
-		// Request the channel mode as we don't get it automatically
-		str_reset (&channel->no_param_modes);
-		str_map_clear (&channel->param_modes);
-		irc_send (s, "MODE %s", channel_name);
-
-		if ((channel->show_names_after_who = s->cap_away_notify))
-			irc_send (s, "WHO %s", channel_name);
-	}
-
-	// Add the user to the channel
-	char *nickname = irc_cut_nickname (msg->prefix);
-	irc_channel_link_user (channel, irc_get_or_make_user (s, nickname), "");
-	free (nickname);
-
-	// Finally log the message
-	if (buffer)
-	{
-		log_server (s, buffer, BUFFER_LINE_UNIMPORTANT, "#a-->#r #N #a#s#r #S",
-			ATTR_JOIN, msg->prefix, ATTR_JOIN, "has joined", channel_name);
-	}
-}
-
-static void
-irc_handle_kick (struct server *s, const struct irc_message *msg)
-{
-	if (!msg->prefix || msg->params.len < 2)
-		return;
-
-	const char *channel_name = msg->params.vector[0];
-	const char *target = msg->params.vector[1];
-	if (!irc_is_channel (s, channel_name)
-	 || irc_is_channel (s, target))
-		return;
-
-	const char *message = NULL;
-	if (msg->params.len > 2)
-		message = msg->params.vector[2];
-
-	struct user *user = str_map_find (&s->irc_users, target);
-	struct channel *channel = str_map_find (&s->irc_channels, channel_name);
-	struct buffer *buffer = str_map_find (&s->irc_buffer_map, channel_name);
-	hard_assert (channel || !buffer);
-
-	// It would be weird for this to be false
-	if (user && channel)
-	{
-		if (irc_is_this_us (s, target))
-			irc_left_channel (channel);
-		else
-			irc_remove_user_from_channel (user, channel);
-	}
-
-	if (buffer)
-	{
-		struct formatter f = formatter_make (s->ctx, s);
-		formatter_add (&f, "#a<--#r #N #a#s#r #n",
-			ATTR_PART, msg->prefix, ATTR_PART, "has kicked", target);
-		if (message)
-			formatter_add (&f, " (#m)", message);
-		log_formatter (s->ctx, buffer, 0, &f);
-	}
-}
-
-static void
-irc_handle_kill (struct server *s, const struct irc_message *msg)
-{
-	if (!msg->prefix || msg->params.len < 2)
-		return;
-
-	const char *target  = msg->params.vector[0];
-	const char *comment = msg->params.vector[1];
-
-	if (irc_is_this_us (s, target))
-		log_server_status (s, s->buffer,
-			"You've been killed by #n (#m)", msg->prefix, comment);
-}
-
-static void
-irc_handle_mode (struct server *s, const struct irc_message *msg)
-{
-	if (!msg->prefix || msg->params.len < 1)
-		return;
-
-	const char *context = msg->params.vector[0];
-
-	// Join the modes back to a single string
-	struct strv copy = strv_make ();
-	strv_append_vector (&copy, msg->params.vector + 1);
-	char *modes = strv_join (&copy, " ");
-	strv_free (&copy);
-
-	if (irc_is_channel (s, context))
-	{
-		struct channel *channel = str_map_find (&s->irc_channels, context);
-		struct buffer *buffer = str_map_find (&s->irc_buffer_map, context);
-		hard_assert (channel || !buffer);
-
-		int flags = 0;
-		if (channel
-		 && irc_handle_mode_channel (channel, msg->params.vector + 1))
-			// This is 90% automode spam, let's not let it steal attention,
-			// maybe this behaviour should be configurable though
-			flags = BUFFER_LINE_UNIMPORTANT;
-
-		if (buffer)
-		{
-			log_server (s, buffer, BUFFER_LINE_STATUS | flags,
-				"Mode #S [#S] by #n", context, modes, msg->prefix);
-		}
-	}
-	else if (irc_is_this_us (s, context))
-	{
-		irc_handle_mode_user (s, msg->params.vector + 1);
-		log_server_status (s, s->buffer,
-			"User mode [#S] by #n", modes, msg->prefix);
-	}
-
-	free (modes);
-}
-
-static void
-irc_handle_nick (struct server *s, const struct irc_message *msg)
-{
-	if (!msg->prefix || msg->params.len < 1)
-		return;
-
-	const char *new_nickname = msg->params.vector[0];
-
-	char *nickname = irc_cut_nickname (msg->prefix);
-	struct user *user = str_map_find (&s->irc_users, nickname);
-	free (nickname);
-	if (!user)
-		return;
-
-	bool lexicographically_different =
-		!!irc_server_strcmp (s, user->nickname, new_nickname);
-
-	// What the fuck, someone renamed themselves to ourselves
-	// TODO: probably log a message and force a reconnect
-	if (lexicographically_different
-	 && !irc_server_strcmp (s, new_nickname, s->irc_user->nickname))
-		return;
-
-	// Log a message in any PM buffer (we may even have one for ourselves)
-	struct buffer *pm_buffer =
-		str_map_find (&s->irc_buffer_map, user->nickname);
-	if (pm_buffer)
-	{
-		if (irc_is_this_us (s, msg->prefix))
-			log_nick_self (s, pm_buffer, new_nickname);
-		else
-			log_nick (s, pm_buffer, msg->prefix, new_nickname);
-	}
-
-	// The new nickname may collide with a user referenced by a PM buffer,
-	// or in case of data inconsistency with the server, channels.
-	// In the latter case we need the colliding user to leave all of them.
-	struct user *user_collision = NULL;
-	if (lexicographically_different
-	 && (user_collision = str_map_find (&s->irc_users, new_nickname)))
-		LIST_FOR_EACH (struct user_channel, iter, user_collision->channels)
-			irc_remove_user_from_channel (user_collision, iter->channel);
-
-	struct buffer *buffer_collision = NULL;
-	if (lexicographically_different
-	 && (buffer_collision = str_map_find (&s->irc_buffer_map, new_nickname)))
-	{
-		hard_assert (buffer_collision->type == BUFFER_PM);
-		hard_assert (buffer_collision->user == user_collision);
-
-		user_unref (buffer_collision->user);
-		buffer_collision->user = user_ref (user);
-	}
-
-	if (pm_buffer && buffer_collision)
-	{
-		// There's not much else we can do other than somehow try to merge
-		// one buffer into the other.  In our case, the original buffer wins.
-		buffer_merge (s->ctx, buffer_collision, pm_buffer);
-		if (s->ctx->current_buffer == pm_buffer)
-			buffer_activate (s->ctx, buffer_collision);
-		buffer_remove (s->ctx, pm_buffer);
-		pm_buffer = buffer_collision;
-	}
-
-	// The colliding user should be completely gone by now
-	if (lexicographically_different)
-		hard_assert (!str_map_find (&s->irc_users, new_nickname));
-
-	// Now we can rename the PM buffer to reflect the new nickname
-	if (pm_buffer)
-	{
-		str_map_set (&s->irc_buffer_map, user->nickname, NULL);
-		str_map_set (&s->irc_buffer_map, new_nickname, pm_buffer);
-
-		char *x = xstrdup_printf ("%s.%s", s->name, new_nickname);
-		buffer_rename (s->ctx, pm_buffer, x);
-		free (x);
-	}
-
-	if (irc_is_this_us (s, msg->prefix))
-	{
-		log_nick_self (s, s->buffer, new_nickname);
-
-		// Log a message in all open buffers on this server
-		struct str_map_iter iter = str_map_iter_make (&s->irc_buffer_map);
-		struct buffer *buffer;
-		while ((buffer = str_map_iter_next (&iter)))
-		{
-			// We've already done that
-			if (buffer != pm_buffer)
-				log_nick_self (s, buffer, new_nickname);
-		}
-	}
-	else
-	{
-		// Log a message in all channels the user is in
-		LIST_FOR_EACH (struct user_channel, iter, user->channels)
-		{
-			struct buffer *buffer =
-				str_map_find (&s->irc_buffer_map, iter->channel->name);
-			hard_assert (buffer != NULL);
-			log_nick (s, buffer, msg->prefix, new_nickname);
-		}
-	}
-
-	// Finally rename the user as it should be safe now
-	str_map_set (&s->irc_users, user->nickname, NULL);
-	str_map_set (&s->irc_users, new_nickname, user);
-
-	cstr_set (&user->nickname, xstrdup (new_nickname));
-}
-
-static void
-irc_handle_ctcp_reply (struct server *s,
-	const struct irc_message *msg, struct ctcp_chunk *chunk)
-{
-	const char *target = msg->params.vector[0];
-	if (irc_is_this_us (s, msg->prefix))
-		log_ctcp_reply (s, target,
-			xstrdup_printf ("%s %s", chunk->tag.str, chunk->text.str));
-	else
-		log_server_status (s, s->buffer, "CTCP reply from #n: #S #S",
-			msg->prefix, chunk->tag.str, chunk->text.str);
-}
-
-static void
-irc_handle_notice_text (struct server *s,
-	const struct irc_message *msg, struct str *text)
-{
-	const char *target = msg->params.vector[0];
-	struct buffer *buffer = irc_get_buffer_for_message (s, msg, target);
-	if (!buffer)
-	{
-		if (irc_is_this_us (s, msg->prefix))
-			log_outcoming_orphan_notice (s, target, text->str);
-		return;
-	}
-
-	char *nick = irc_cut_nickname (msg->prefix);
-	// IRCv3.2 echo-message could otherwise cause us to highlight ourselves
-	if (!irc_is_this_us (s, msg->prefix) && irc_is_highlight (s, text->str))
-		log_server (s, buffer, BUFFER_LINE_STATUS | BUFFER_LINE_HIGHLIGHT,
-			"#a#s(#S)#r: #m", ATTR_HIGHLIGHT, "Notice", nick, text->str);
-	else
-		log_outcoming_notice (s, buffer, msg->prefix, text->str);
-	free (nick);
-}
-
-static void
-irc_handle_notice (struct server *s, const struct irc_message *msg)
-{
-	if (!msg->prefix || msg->params.len < 2)
-		return;
-
-	// This ignores empty messages which we should never receive anyway
-	struct ctcp_chunk *chunks = ctcp_parse (msg->params.vector[1]);
-	LIST_FOR_EACH (struct ctcp_chunk, iter, chunks)
-		if (!iter->is_extended)
-			irc_handle_notice_text (s, msg, &iter->text);
-		else
-			irc_handle_ctcp_reply (s, msg, iter);
-	ctcp_destroy (chunks);
-}
-
-static void
-irc_handle_part (struct server *s, const struct irc_message *msg)
-{
-	if (!msg->prefix || msg->params.len < 1)
-		return;
-
-	const char *channel_name = msg->params.vector[0];
-	if (!irc_is_channel (s, channel_name))
-		return;
-
-	const char *message = NULL;
-	if (msg->params.len > 1)
-		message = msg->params.vector[1];
-
-	char *nickname = irc_cut_nickname (msg->prefix);
-	struct user *user = str_map_find (&s->irc_users, nickname);
-	free (nickname);
-
-	struct channel *channel = str_map_find (&s->irc_channels, channel_name);
-	struct buffer *buffer = str_map_find (&s->irc_buffer_map, channel_name);
-	hard_assert (channel || !buffer);
-
-	// It would be weird for this to be false
-	if (user && channel)
-	{
-		if (irc_is_this_us (s, msg->prefix))
-			irc_left_channel (channel);
-		else
-			irc_remove_user_from_channel (user, channel);
-	}
-
-	if (buffer)
-	{
-		struct formatter f = formatter_make (s->ctx, s);
-		formatter_add (&f, "#a<--#r #N #a#s#r #S",
-			ATTR_PART, msg->prefix, ATTR_PART, "has left", channel_name);
-		if (message)
-			formatter_add (&f, " (#m)", message);
-		log_formatter (s->ctx, buffer, BUFFER_LINE_UNIMPORTANT, &f);
-	}
-}
-
-static void
-irc_handle_ping (struct server *s, const struct irc_message *msg)
-{
-	if (msg->params.len)
-		irc_send (s, "PONG :%s", msg->params.vector[0]);
-	else
-		irc_send (s, "PONG");
-}
-
-static char *
-ctime_now (char buf[26])
-{
-	struct tm tm_;
-	time_t now = time (NULL);
-	if (!asctime_r (localtime_r (&now, &tm_), buf))
-		return NULL;
-
-	// Annoying thing
-	*strchr (buf, '\n') = '\0';
-	return buf;
-}
-
-static void irc_send_ctcp_reply (struct server *s, const char *recipient,
-	const char *format, ...) ATTRIBUTE_PRINTF (3, 4);
-
-static void
-irc_send_ctcp_reply (struct server *s,
-	const char *recipient, const char *format, ...)
-{
-	struct str m = str_make ();
-
-	va_list ap;
-	va_start (ap, format);
-	str_append_vprintf (&m, format, ap);
-	va_end (ap);
-
-	irc_send (s, "NOTICE %s :\x01%s\x01", recipient, m.str);
-	str_free (&m);
-}
-
-static void
-irc_handle_ctcp_request (struct server *s,
-	const struct irc_message *msg, struct ctcp_chunk *chunk)
-{
-	const char *target = msg->params.vector[0];
-	if (irc_is_this_us (s, msg->prefix))
-	{
-		if (s->cap_echo_message)
-			log_ctcp_query (s, target, chunk->tag.str);
-		if (!irc_is_this_us (s, target))
-			return;
-	}
-
-	struct formatter f = formatter_make (s->ctx, s);
-	formatter_add (&f, "CTCP requested by #n", msg->prefix);
-	if (irc_is_channel (s, irc_skip_statusmsg (s, target)))
-		formatter_add (&f, " (to #S)", target);
-	formatter_add (&f, ": #S", chunk->tag.str);
-	log_formatter (s->ctx, s->buffer, BUFFER_LINE_STATUS, &f);
-
-	char *nickname = irc_cut_nickname (msg->prefix);
-
-	if (!strcmp (chunk->tag.str, "CLIENTINFO"))
-		irc_send_ctcp_reply (s, nickname, "CLIENTINFO %s %s %s %s",
-			"PING", "VERSION", "TIME", "CLIENTINFO");
-	else if (!strcmp (chunk->tag.str, "PING"))
-		irc_send_ctcp_reply (s, nickname, "PING %s", chunk->text.str);
-	else if (!strcmp (chunk->tag.str, "VERSION"))
-	{
-		struct utsname info;
-		if (uname (&info))
-			LOG_LIBC_FAILURE ("uname");
-		else
-			irc_send_ctcp_reply (s, nickname, "VERSION %s %s on %s %s",
-				PROGRAM_NAME, PROGRAM_VERSION, info.sysname, info.machine);
-	}
-	else if (!strcmp (chunk->tag.str, "TIME"))
-	{
-		char buf[26];
-		if (!ctime_now (buf))
-			LOG_LIBC_FAILURE ("asctime_r");
-		else
-			irc_send_ctcp_reply (s, nickname, "TIME %s", buf);
-	}
-
-	free (nickname);
-}
-
-static void
-irc_handle_privmsg_text (struct server *s,
-	const struct irc_message *msg, struct str *text, bool is_action)
-{
-	const char *target = msg->params.vector[0];
-	struct buffer *buffer = irc_get_buffer_for_message (s, msg, target);
-	if (!buffer)
-	{
-		if (irc_is_this_us (s, msg->prefix))
-			log_outcoming_orphan_privmsg (s, target, text->str);
-		return;
-	}
-
-	char *nickname = irc_cut_nickname (msg->prefix);
-	char *prefixes = irc_get_privmsg_prefix
-		(s, str_map_find (&s->irc_users, nickname), target);
-
-	// Make autocomplete offer recent speakers first on partial matches
-	// (note that freshly joined users also move to the front)
-	struct user *user;
-	struct channel_user *channel_user;
-	if (!irc_is_this_us (s, msg->prefix) && buffer->channel
-	 && (user = str_map_find (&s->irc_users, nickname))
-	 && (channel_user = irc_channel_get_user (buffer->channel, user)))
-	{
-		LIST_UNLINK (buffer->channel->users, channel_user);
-		LIST_PREPEND (buffer->channel->users, channel_user);
-	}
-
-	// IRCv3.2 echo-message could otherwise cause us to highlight ourselves
-	if (irc_is_this_us (s, msg->prefix) || !irc_is_highlight (s, text->str))
-	{
-		if (is_action)
-			log_outcoming_action (s, buffer, nickname, text->str);
-		else
-			log_outcoming_privmsg (s, buffer, prefixes, nickname, text->str);
-	}
-	else if (is_action)
-		log_server (s, buffer, BUFFER_LINE_HIGHLIGHT,
-			" #a*#r  #n #m", ATTR_HIGHLIGHT, msg->prefix, text->str);
-	else
-		log_server (s, buffer, BUFFER_LINE_HIGHLIGHT,
-			"#a<#S#S>#r #m", ATTR_HIGHLIGHT, prefixes, nickname, text->str);
-
-	free (nickname);
-	free (prefixes);
-}
-
-static void
-irc_handle_privmsg (struct server *s, const struct irc_message *msg)
-{
-	if (!msg->prefix || msg->params.len < 2)
-		return;
-
-	// This ignores empty messages which we should never receive anyway
-	struct ctcp_chunk *chunks = ctcp_parse (msg->params.vector[1]);
-	LIST_FOR_EACH (struct ctcp_chunk, iter, chunks)
-		if (!iter->is_extended)
-			irc_handle_privmsg_text (s, msg, &iter->text, false);
-		else if (!strcmp (iter->tag.str, "ACTION"))
-			irc_handle_privmsg_text (s, msg, &iter->text, true);
-		else
-			irc_handle_ctcp_request (s, msg, iter);
-	ctcp_destroy (chunks);
-}
-
-static void
-log_quit (struct server *s,
-	struct buffer *buffer, const char *prefix, const char *reason)
-{
-	struct formatter f = formatter_make (s->ctx, s);
-	formatter_add (&f, "#a<--#r #N #a#s#r",
-		ATTR_PART, prefix, ATTR_PART, "has quit");
-	if (reason)
-		formatter_add (&f, " (#m)", reason);
-	log_formatter (s->ctx, buffer, BUFFER_LINE_UNIMPORTANT, &f);
-}
-
-static void
-irc_handle_quit (struct server *s, const struct irc_message *msg)
-{
-	if (!msg->prefix)
-		return;
-
-	// What the fuck, the server never sends this back
-	if (irc_is_this_us (s, msg->prefix))
-		return;
-
-	char *nickname = irc_cut_nickname (msg->prefix);
-	struct user *user = str_map_find (&s->irc_users, nickname);
-	free (nickname);
-	if (!user)
-		return;
-
-	const char *message = NULL;
-	if (msg->params.len > 0)
-		message = msg->params.vector[0];
-
-	// Log a message in any PM buffer
-	struct buffer *buffer =
-		str_map_find (&s->irc_buffer_map, user->nickname);
-	if (buffer)
-	{
-		log_quit (s, buffer, msg->prefix, message);
-
-		// TODO: set some kind of a flag in the buffer and when the user
-		//   reappears on a channel (JOIN), log a "is back online" message.
-		//   Also set this flag when we receive a "no such nick" numeric
-		//   and reset it when we send something to the buffer.
-	}
-
-	// Log a message in all channels the user is in
-	LIST_FOR_EACH (struct user_channel, iter, user->channels)
-	{
-		if ((buffer = str_map_find (&s->irc_buffer_map, iter->channel->name)))
-			log_quit (s, buffer, msg->prefix, message);
-
-		// This destroys "iter" which doesn't matter to us
-		irc_remove_user_from_channel (user, iter->channel);
-	}
-}
-
-static void
-irc_handle_tagmsg (struct server *s, const struct irc_message *msg)
-{
-	// TODO: here we can process "typing" tags, once we find this useful
-	(void) s;
-	(void) msg;
-}
-
-static void
-irc_handle_topic (struct server *s, const struct irc_message *msg)
-{
-	if (!msg->prefix || msg->params.len < 2)
-		return;
-
-	const char *channel_name = msg->params.vector[0];
-	const char *topic = msg->params.vector[1];
-	if (!irc_is_channel (s, channel_name))
-		return;
-
-	struct channel *channel = str_map_find (&s->irc_channels, channel_name);
-	struct buffer *buffer = str_map_find (&s->irc_buffer_map, channel_name);
-	hard_assert (channel || !buffer);
-
-	// It would be weird for this to be false
-	if (channel)
-		cstr_set (&channel->topic, xstrdup (topic));
-
-	if (buffer)
-	{
-		log_server (s, buffer, BUFFER_LINE_STATUS, "#n #s \"#m\"",
-			msg->prefix, "has changed the topic to", topic);
-	}
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static struct irc_handler g_irc_handlers[] =
-{
-	// This list needs to stay sorted
-	{ "AUTHENTICATE", irc_handle_authenticate },
-	{ "AWAY",         irc_handle_away         },
-	{ "CAP",          irc_handle_cap          },
-	{ "CHGHOST",      irc_handle_chghost      },
-	{ "ERROR",        irc_handle_error        },
-	{ "INVITE",       irc_handle_invite       },
-	{ "JOIN",         irc_handle_join         },
-	{ "KICK",         irc_handle_kick         },
-	{ "KILL",         irc_handle_kill         },
-	{ "MODE",         irc_handle_mode         },
-	{ "NICK",         irc_handle_nick         },
-	{ "NOTICE",       irc_handle_notice       },
-	{ "PART",         irc_handle_part         },
-	{ "PING",         irc_handle_ping         },
-	{ "PRIVMSG",      irc_handle_privmsg      },
-	{ "QUIT",         irc_handle_quit         },
-	{ "TAGMSG",       irc_handle_tagmsg       },
-	{ "TOPIC",        irc_handle_topic        },
-};
-
-static bool
-irc_try_parse_word_for_userhost (struct server *s, const char *word)
-{
-	regex_t re;
-	int err = regcomp (&re, "^[^!@]+!([^!@]+@[^!@]+)$", REG_EXTENDED);
-	if (!soft_assert (!err))
-		return false;
-
-	regmatch_t matches[2];
-	bool result = false;
-	if (!regexec (&re, word, 2, matches, 0))
-	{
-		cstr_set (&s->irc_user_host, xstrndup (word + matches[1].rm_so,
-			matches[1].rm_eo - matches[1].rm_so));
-		result = true;
-	}
-	regfree (&re);
-	return result;
-}
-
-static void
-irc_try_parse_welcome_for_userhost (struct server *s, const char *m)
-{
-	struct strv v = strv_make ();
-	cstr_split (m, " ", true, &v);
-	for (size_t i = 0; i < v.len; i++)
-		if (irc_try_parse_word_for_userhost (s, v.vector[i]))
-			break;
-	strv_free (&v);
-}
-
-static bool process_input_utf8
-	(struct app_context *, struct buffer *, const char *, int);
-static void on_autoaway_timer (struct app_context *ctx);
-
-static void
-irc_on_registered (struct server *s, const char *nickname)
-{
-	s->irc_user = irc_get_or_make_user (s, nickname);
-	str_reset (&s->irc_user_mode);
-	cstr_set (&s->irc_user_host, NULL);
-
-	s->state = IRC_REGISTERED;
-	refresh_prompt (s->ctx);
-
-	// XXX: we can also use WHOIS if it's not supported (optional by RFC 2812)
-	// TODO: maybe rather always use RPL_ISUPPORT NICKLEN & USERLEN & HOSTLEN
-	//   since we don't seem to follow any subsequent changes in userhost;
-	//   unrealircd sends RPL_HOSTHIDDEN (396), which has an optional user part,
-	//   and there is also CAP CHGHOST which /may/ send it to ourselves
-	irc_send (s, "USERHOST %s", s->irc_user->nickname);
-
-	// A little hack that reinstates auto-away status when we get disconnected
-	if (s->autoaway_active)
-		on_autoaway_timer (s->ctx);
-
-	const char *command = get_config_string (s->config, "command");
-	if (command)
-	{
-		log_server_debug (s, "Executing \"#s\"", command);
-		process_input_utf8 (s->ctx, s->buffer, command, 0);
-	}
-
-	int64_t command_delay = get_config_integer (s->config, "command_delay");
-	log_server_debug (s, "Autojoining channels in #&s seconds...",
-		xstrdup_printf ("%" PRId64, command_delay));
-	poller_timer_set (&s->autojoin_tmr, command_delay * 1000);
-}
-
-static void
-irc_handle_rpl_userhost (struct server *s, const struct irc_message *msg)
-{
-	if (msg->params.len < 2)
-		return;
-
-	const char *response = msg->params.vector[1];
-	struct strv v = strv_make ();
-	cstr_split (response, " ", true, &v);
-
-	for (size_t i = 0; i < v.len; i++)
-	{
-		char *nick = v.vector[i];
-		char *equals = strchr (nick, '=');
-
-		if (!equals || equals == nick)
-			continue;
-
-		// User is an IRC operator
-		if (equals[-1] == '*')
-			equals[-1] = '\0';
-		else
-			equals[ 0] = '\0';
-
-		// TODO: make use of this (away status polling?)
-		char away_status = equals[1];
-		if (!strchr ("+-", away_status))
-			continue;
-
-		char *userhost = equals + 2;
-		if (irc_is_this_us (s, nick))
-			cstr_set (&s->irc_user_host, xstrdup (userhost));
-	}
-	strv_free (&v);
-}
-
-static void
-irc_handle_rpl_umodeis (struct server *s, const struct irc_message *msg)
-{
-	if (msg->params.len < 2)
-		return;
-
-	str_reset (&s->irc_user_mode);
-	irc_handle_mode_user (s, msg->params.vector + 1);
-
-	// XXX: do we want to log a message?
-}
-
-static void
-irc_handle_rpl_namreply (struct server *s, const struct irc_message *msg)
-{
-	if (msg->params.len < 4)
-		return;
-
-	const char *channel_name = msg->params.vector[2];
-	const char *nicks        = msg->params.vector[3];
-
-	// Just push the nicknames to a string vector to process later
-	struct channel *channel = str_map_find (&s->irc_channels, channel_name);
-	if (channel)
-		cstr_split (nicks, " ", true, &channel->names_buf);
-	else
-		log_server_status (s, s->buffer, "Users on #S: #S",
-			channel_name, nicks);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-struct channel_user_sort_entry
-{
-	struct server *s;                   ///< Server (because of the qsort API)
-	struct channel_user *channel_user;  ///< Channel user
-};
-
-static int
-channel_user_sort_entry_cmp (const void *entry_a, const void *entry_b)
-{
-	const struct channel_user_sort_entry *a = entry_a;
-	const struct channel_user_sort_entry *b = entry_b;
-	struct server *s = a->s;
-
-	// First order by the most significant channel user prefix
-	const char *prio_a = strchr (s->irc_chanuser_prefixes,
-		a->channel_user->prefixes[0]);
-	const char *prio_b = strchr (s->irc_chanuser_prefixes,
-		b->channel_user->prefixes[0]);
-
-	// Put unrecognized prefixes at the end of the list
-	if (prio_a || prio_b)
-	{
-		if (!prio_a) return  1;
-		if (!prio_b) return -1;
-
-		if (prio_a != prio_b)
-			return prio_a - prio_b;
-	}
-
-	return irc_server_strcmp (s,
-		a->channel_user->user->nickname,
-		b->channel_user->user->nickname);
-}
-
-static void
-irc_sort_channel_users (struct channel *channel)
-{
-	size_t n_users = channel->users_len;
-	struct channel_user_sort_entry entries[n_users], *p = entries;
-	LIST_FOR_EACH (struct channel_user, iter, channel->users)
-	{
-		p->s = channel->s;
-		p->channel_user = iter;
-		p++;
-	}
-
-	qsort (entries, n_users, sizeof *entries, channel_user_sort_entry_cmp);
-
-	channel->users = NULL;
-	while (p-- != entries)
-		LIST_PREPEND (channel->users, p->channel_user);
-}
-
-static char *
-make_channel_users_list (struct channel *channel)
-{
-	size_t n_users = channel->users_len;
-	struct channel_user_sort_entry entries[n_users], *p = entries;
-	LIST_FOR_EACH (struct channel_user, iter, channel->users)
-	{
-		p->s = channel->s;
-		p->channel_user = iter;
-		p++;
-	}
-
-	qsort (entries, n_users, sizeof *entries, channel_user_sort_entry_cmp);
-
-	// Make names of users that are away italicised, constructing a formatter
-	// and adding a new attribute seems like unnecessary work
-	struct str list = str_make ();
-	for (size_t i = 0; i < n_users; i++)
-	{
-		struct channel_user *channel_user = entries[i].channel_user;
-		if (channel_user->user->away) str_append_c (&list, '\x1d');
-		irc_get_channel_user_prefix (channel->s, channel_user, &list);
-		str_append (&list, channel_user->user->nickname);
-		if (channel_user->user->away) str_append_c (&list, '\x1d');
-		str_append_c (&list, ' ');
-	}
-	if (list.len)
-		list.str[--list.len] = '\0';
-	return str_steal (&list);
-}
-
-static void
-irc_sync_channel_user (struct channel *channel, const char *nickname,
-	const char *prefixes)
-{
-	struct user *user = irc_get_or_make_user (channel->s, nickname);
-	struct channel_user *channel_user =
-		irc_channel_get_user (channel, user);
-	if (!channel_user)
-	{
-		irc_channel_link_user (channel, user, prefixes);
-		return;
-	}
-
-	user_unref (user);
-
-	// If our idea of the user's modes disagrees with what the server's
-	// sent us (the most powerful modes differ), use the latter one
-	if (channel_user->prefixes[0] != prefixes[0])
-		cstr_set (&channel_user->prefixes, xstrdup (prefixes));
-}
-
-static void
-irc_process_names_finish (struct channel *channel)
-{
-	struct server *s = channel->s;
-	struct buffer *buffer = str_map_find (&s->irc_buffer_map, channel->name);
-	if (buffer)
-	{
-		log_server_status (channel->s, buffer, "Users on #S: #&m",
-			channel->name, make_channel_users_list (channel));
-	}
-}
-
-static void
-irc_process_names (struct channel *channel)
-{
-	struct str_map present = str_map_make (NULL);
-	present.key_xfrm = channel->s->irc_strxfrm;
-
-	// Either that, or there is no other inhabitant, and sorting does nothing
-	bool we_have_just_joined = channel->users_len == 1;
-
-	struct strv *updates = &channel->names_buf;
-	for (size_t i = 0; i < updates->len; i++)
-	{
-		const char *item = updates->vector[i];
-		size_t n_prefixes = strspn (item, channel->s->irc_chanuser_prefixes);
-		const char *nickname = item + n_prefixes;
-
-		// Store the nickname in a hashset
-		str_map_set (&present, nickname, (void *) 1);
-
-		char *prefixes = xstrndup (item, n_prefixes);
-		irc_sync_channel_user (channel, nickname, prefixes);
-		free (prefixes);
-	}
-
-	// Get rid of channel users missing from "updates"
-	LIST_FOR_EACH (struct channel_user, iter, channel->users)
-		if (!str_map_find (&present, iter->user->nickname))
-			irc_channel_unlink_user (channel, iter);
-
-	str_map_free (&present);
-	strv_reset (&channel->names_buf);
-
-	if (we_have_just_joined)
-		irc_sort_channel_users (channel);
-	if (!channel->show_names_after_who)
-		irc_process_names_finish (channel);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-irc_handle_rpl_endofnames (struct server *s, const struct irc_message *msg)
-{
-	if (msg->params.len < 2)
-		return;
-
-	const char *channel_name = msg->params.vector[1];
-	struct channel *channel = str_map_find (&s->irc_channels, channel_name);
-	if (!strcmp (channel_name, "*"))
-	{
-		struct str_map_iter iter = str_map_iter_make (&s->irc_channels);
-		struct channel *channel;
-		while ((channel = str_map_iter_next (&iter)))
-			irc_process_names (channel);
-	}
-	else if (channel)
-		irc_process_names (channel);
-}
-
-static bool
-irc_handle_rpl_whoreply (struct server *s, const struct irc_message *msg)
-{
-	if (msg->params.len < 7)
-		return false;
-
-	// Sequence: channel, user, host, server, nick, chars
-	const char *channel_name = msg->params.vector[1];
-	const char *nickname     = msg->params.vector[5];
-	const char *chars        = msg->params.vector[6];
-
-	struct channel *channel = str_map_find (&s->irc_channels, channel_name);
-	struct user *user = str_map_find (&s->irc_users, nickname);
-
-	// This makes sense to set only with the away-notify capability so far.
-	if (!channel || !channel->show_names_after_who)
-		return false;
-
-	// We track ourselves by other means and we can't track PM-only users yet.
-	if (user && user != s->irc_user && user->channels)
-		user->away = *chars == 'G';
-	return true;
-}
-
-static bool
-irc_handle_rpl_endofwho (struct server *s, const struct irc_message *msg)
-{
-	if (msg->params.len < 2)
-		return false;
-
-	const char *target = msg->params.vector[1];
-
-	struct channel *channel = str_map_find (&s->irc_channels, target);
-	if (!channel || !channel->show_names_after_who)
-		return false;
-
-	irc_process_names_finish (channel);
-	channel->show_names_after_who = false;
-	return true;
-}
-
-static void
-irc_handle_rpl_topic (struct server *s, const struct irc_message *msg)
-{
-	if (msg->params.len < 3)
-		return;
-
-	const char *channel_name = msg->params.vector[1];
-	const char *topic        = msg->params.vector[2];
-
-	struct channel *channel = str_map_find (&s->irc_channels, channel_name);
-	struct buffer *buffer = str_map_find (&s->irc_buffer_map, channel_name);
-	hard_assert (channel || !buffer);
-
-	if (channel)
-		cstr_set (&channel->topic, xstrdup (topic));
-
-	if (buffer)
-		log_server_status (s, buffer, "The topic is: #m", topic);
-}
-
-static void
-irc_handle_rpl_channelmodeis (struct server *s, const struct irc_message *msg)
-{
-	if (msg->params.len < 2)
-		return;
-
-	const char *channel_name = msg->params.vector[1];
-
-	struct channel *channel = str_map_find (&s->irc_channels, channel_name);
-	struct buffer *buffer = str_map_find (&s->irc_buffer_map, channel_name);
-	hard_assert (channel || !buffer);
-
-	if (channel)
-	{
-		str_reset (&channel->no_param_modes);
-		str_map_clear (&channel->param_modes);
-
-		irc_handle_mode_channel (channel, msg->params.vector + 1);
-	}
-
-	// XXX: do we want to log a message?
-}
-
-static char *
-make_time_string (time_t time)
-{
-	char buf[32];
-	struct tm tm;
-	strftime (buf, sizeof buf, "%a %b %d %Y %T", localtime_r (&time, &tm));
-	return xstrdup (buf);
-}
-
-static void
-irc_handle_rpl_creationtime (struct server *s, const struct irc_message *msg)
-{
-	if (msg->params.len < 3)
-		return;
-
-	const char *channel_name  = msg->params.vector[1];
-	const char *creation_time = msg->params.vector[2];
-
-	unsigned long created;
-	if (!xstrtoul (&created, creation_time, 10))
-		return;
-
-	struct channel *channel = str_map_find (&s->irc_channels, channel_name);
-	struct buffer *buffer = str_map_find (&s->irc_buffer_map, channel_name);
-	hard_assert (channel || !buffer);
-
-	if (buffer)
-	{
-		log_server_status (s, buffer, "Channel created on #&s",
-			make_time_string (created));
-	}
-}
-
-static void
-irc_handle_rpl_topicwhotime (struct server *s, const struct irc_message *msg)
-{
-	if (msg->params.len < 4)
-		return;
-
-	const char *channel_name = msg->params.vector[1];
-	const char *who          = msg->params.vector[2];
-	const char *change_time  = msg->params.vector[3];
-
-	unsigned long changed;
-	if (!xstrtoul (&changed, change_time, 10))
-		return;
-
-	struct channel *channel = str_map_find (&s->irc_channels, channel_name);
-	struct buffer *buffer = str_map_find (&s->irc_buffer_map, channel_name);
-	hard_assert (channel || !buffer);
-
-	if (buffer)
-	{
-		log_server_status (s, buffer, "Topic set by #N on #&s",
-			who, make_time_string (changed));
-	}
-}
-
-static void
-irc_handle_rpl_inviting (struct server *s, const struct irc_message *msg)
-{
-	if (msg->params.len < 3)
-		return;
-
-	const char *nickname     = msg->params.vector[1];
-	const char *channel_name = msg->params.vector[2];
-
-	struct buffer *buffer;
-	if (!(buffer = str_map_find (&s->irc_buffer_map, channel_name)))
-		buffer = s->buffer;
-
-	log_server_status (s, buffer,
-		"You have invited #n to #S", nickname, channel_name);
-}
-
-static void
-irc_handle_err_nicknameinuse (struct server *s, const struct irc_message *msg)
-{
-	if (msg->params.len < 2)
-		return;
-
-	log_server_error (s, s->buffer,
-		"Nickname is already in use: #S", msg->params.vector[1]);
-
-	// Only do this while we haven't successfully registered yet
-	if (s->state != IRC_CONNECTED)
-		return;
-
-	char *nickname = irc_fetch_next_nickname (s);
-	if (nickname)
-	{
-		log_server_status (s, s->buffer, "Retrying with #s...", nickname);
-		irc_send (s, "NICK :%s", nickname);
-		free (nickname);
-	}
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-irc_handle_isupport_prefix (struct server *s, char *value)
-{
-	char *modes = value;
-	char *prefixes = strchr (value, ')');
-	size_t n_prefixes = prefixes - modes;
-	if (*modes++ != '(' || !prefixes++ || strlen (value) != 2 * n_prefixes--)
-		return;
-
-	cstr_set (&s->irc_chanuser_modes,    xstrndup (modes,    n_prefixes));
-	cstr_set (&s->irc_chanuser_prefixes, xstrndup (prefixes, n_prefixes));
-}
-
-static void
-irc_handle_isupport_casemapping (struct server *s, char *value)
-{
-	if      (!strcmp (value, "ascii"))
-		irc_set_casemapping (s, tolower_ascii,      tolower_ascii_strxfrm);
-	else if (!strcmp (value, "rfc1459"))
-		irc_set_casemapping (s, irc_tolower,        irc_strxfrm);
-	else if (!strcmp (value, "rfc1459-strict"))
-		irc_set_casemapping (s, irc_tolower_strict, irc_strxfrm_strict);
-}
-
-static void
-irc_handle_isupport_chantypes (struct server *s, char *value)
-{
-	cstr_set (&s->irc_chantypes, xstrdup (value));
-}
-
-static void
-irc_handle_isupport_idchan (struct server *s, char *value)
-{
-	struct str prefixes = str_make ();
-	struct strv v = strv_make ();
-	cstr_split (value, ",", true, &v);
-	for (size_t i = 0; i < v.len; i++)
-	{
-		// Not using or validating the numeric part
-		const char *pair = v.vector[i];
-		const char *colon = strchr (pair, ':');
-		if (colon)
-			str_append_data (&prefixes, pair, colon - pair);
-	}
-	strv_free (&v);
-	cstr_set (&s->irc_idchan_prefixes, str_steal (&prefixes));
-}
-
-static void
-irc_handle_isupport_statusmsg (struct server *s, char *value)
-{
-	cstr_set (&s->irc_statusmsg, xstrdup (value));
-}
-
-static void
-irc_handle_isupport_extban (struct server *s, char *value)
-{
-	s->irc_extban_prefix = 0;
-	if (*value && *value != ',')
-		s->irc_extban_prefix = *value++;
-
-	cstr_set (&s->irc_extban_types, xstrdup (*value == ',' ? ++value : ""));
-}
-
-static void
-irc_handle_isupport_chanmodes (struct server *s, char *value)
-{
-	struct strv v = strv_make ();
-	cstr_split (value, ",", true, &v);
-	if (v.len >= 4)
-	{
-		cstr_set (&s->irc_chanmodes_list,           xstrdup (v.vector[0]));
-		cstr_set (&s->irc_chanmodes_param_always,   xstrdup (v.vector[1]));
-		cstr_set (&s->irc_chanmodes_param_when_set, xstrdup (v.vector[2]));
-		cstr_set (&s->irc_chanmodes_param_never,    xstrdup (v.vector[3]));
-	}
-	strv_free (&v);
-}
-
-static void
-irc_handle_isupport_modes (struct server *s, char *value)
-{
-	unsigned long modes;
-	if (!*value)
-		s->irc_max_modes = UINT_MAX;
-	else if (xstrtoul (&modes, value, 10) && modes && modes <= UINT_MAX)
-		s->irc_max_modes = modes;
-}
-
-static void
-unescape_isupport_value (const char *value, struct str *output)
-{
-	const char *alphabet = "0123456789abcdef", *a, *b;
-	for (const char *p = value; *p; p++)
-	{
-		if (p[0] == '\\'
-		 && p[1] == 'x'
-		 && p[2] && (a = strchr (alphabet, tolower_ascii (p[2])))
-		 && p[3] && (b = strchr (alphabet, tolower_ascii (p[3]))))
-		{
-			str_append_c (output, (a - alphabet) << 4 | (b - alphabet));
-			p += 3;
-		}
-		else
-			str_append_c (output, *p);
-	}
-}
-
-static void
-dispatch_isupport (struct server *s, const char *name, char *value)
-{
-#define MATCH(from, to) if (!strcmp (name, (from))) { (to) (s, value); return; }
-
-	// TODO: also make use of TARGMAX to split client commands as necessary
-
-	MATCH ("PREFIX",      irc_handle_isupport_prefix);
-	MATCH ("CASEMAPPING", irc_handle_isupport_casemapping);
-	MATCH ("CHANTYPES",   irc_handle_isupport_chantypes);
-	MATCH ("IDCHAN",      irc_handle_isupport_idchan);
-	MATCH ("STATUSMSG",   irc_handle_isupport_statusmsg);
-	MATCH ("EXTBAN",      irc_handle_isupport_extban);
-	MATCH ("CHANMODES",   irc_handle_isupport_chanmodes);
-	MATCH ("MODES",       irc_handle_isupport_modes);
-
-#undef MATCH
-}
-
-static void
-irc_handle_rpl_isupport (struct server *s, const struct irc_message *msg)
-{
-	if (msg->params.len < 2)
-		return;
-
-	for (size_t i = 1; i < msg->params.len - 1; i++)
-	{
-		// TODO: if the parameter starts with "-", it resets to default
-		char *param = msg->params.vector[i];
-		char *value = param + strcspn (param, "=");
-		if (*value) *value++ = '\0';
-
-		struct str value_unescaped = str_make ();
-		unescape_isupport_value (value, &value_unescaped);
-		dispatch_isupport (s, param, value_unescaped.str);
-		str_free (&value_unescaped);
-	}
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-irc_process_numeric (struct server *s,
-	const struct irc_message *msg, unsigned long numeric)
-{
-	// Numerics typically have human-readable information
-
-	// Get rid of the first parameter, if there's any at all,
-	// as it contains our nickname and is of no practical use to the user
-	struct strv copy = strv_make ();
-	strv_append_vector (&copy, msg->params.vector + !!msg->params.len);
-
-	struct buffer *buffer = s->buffer;
-	int flags = BUFFER_LINE_STATUS;
-	switch (numeric)
-	{
-	case IRC_RPL_WELCOME:
-		irc_on_registered (s, msg->params.vector[0]);
-
-		// We still issue a USERHOST anyway as this is in general unreliable
-		if (msg->params.len == 2)
-			irc_try_parse_welcome_for_userhost (s, msg->params.vector[1]);
-		break;
-
-	case IRC_RPL_ISUPPORT:
-		irc_handle_rpl_isupport      (s, msg);                break;
-	case IRC_RPL_USERHOST:
-		irc_handle_rpl_userhost      (s, msg);                break;
-	case IRC_RPL_UMODEIS:
-		irc_handle_rpl_umodeis       (s, msg); buffer = NULL; break;
-	case IRC_RPL_NAMREPLY:
-		irc_handle_rpl_namreply      (s, msg); buffer = NULL; break;
-	case IRC_RPL_ENDOFNAMES:
-		irc_handle_rpl_endofnames    (s, msg); buffer = NULL; break;
-	case IRC_RPL_TOPIC:
-		irc_handle_rpl_topic         (s, msg); buffer = NULL; break;
-	case IRC_RPL_CHANNELMODEIS:
-		irc_handle_rpl_channelmodeis (s, msg); buffer = NULL; break;
-	case IRC_RPL_CREATIONTIME:
-		irc_handle_rpl_creationtime  (s, msg); buffer = NULL; break;
-	case IRC_RPL_TOPICWHOTIME:
-		irc_handle_rpl_topicwhotime  (s, msg); buffer = NULL; break;
-	case IRC_RPL_INVITING:
-		irc_handle_rpl_inviting      (s, msg); buffer = NULL; break;
-
-	case IRC_ERR_NICKNAMEINUSE:
-		irc_handle_err_nicknameinuse (s, msg); buffer = NULL; break;
-
-		// Auto-away spams server buffers with activity
-	case IRC_RPL_NOWAWAY:
-		flags |= BUFFER_LINE_UNIMPORTANT;
-		if (s->irc_user) s->irc_user->away = true;
-		break;
-	case IRC_RPL_UNAWAY:
-		flags |= BUFFER_LINE_UNIMPORTANT;
-		if (s->irc_user) s->irc_user->away = false;
-		break;
-
-	case IRC_RPL_WHOREPLY:
-		if (irc_handle_rpl_whoreply (s, msg))  buffer = NULL;
-		break;
-	case IRC_RPL_ENDOFWHO:
-		if (irc_handle_rpl_endofwho (s, msg))  buffer = NULL;
-		break;
-
-	case IRC_ERR_NICKLOCKED:
-	case IRC_RPL_SASLSUCCESS:
-	case IRC_ERR_SASLFAIL:
-	case IRC_ERR_SASLTOOLONG:
-	case IRC_ERR_SASLABORTED:
-	case IRC_ERR_SASLALREADY:
-		irc_try_finish_cap_negotiation (s);
-		break;
-
-	case IRC_RPL_LIST:
-
-	case IRC_ERR_UNKNOWNCOMMAND:
-	case IRC_ERR_NEEDMOREPARAMS:
-		// Just preventing these commands from getting printed in a more
-		// specific buffer as that would be unwanted
-		break;
-
-	default:
-		// If the second parameter is something we have a buffer for
-		// (a channel, a PM buffer), log it in that buffer.  This is very basic.
-		// TODO: whitelist/blacklist a lot more replies in here.
-		// TODO: we should either strip the first parameter from the resulting
-		//   buffer line, or at least put it in brackets
-		if (msg->params.len > 1)
-		{
-			struct buffer *x;
-			if ((x = str_map_find (&s->irc_buffer_map, msg->params.vector[1])))
-				buffer = x;
-		}
-	}
-
-	if (buffer)
-	{
-		// Join the parameter vector back and send it to the server buffer
-		log_server (s, buffer, flags, "#&m", strv_join (&copy, " "));
-	}
-
-	strv_free (&copy);
-}
-
-static void
-irc_sanitize_cut_off_utf8 (char **line)
-{
-	// A variation on utf8_validate(), we need to detect the -2 return
-	const char *p = *line, *end = strchr (p, 0);
-	int32_t codepoint;
-	while ((codepoint = utf8_decode (&p, end - p)) >= 0
-		&& utf8_validate_cp (codepoint))
-		;
-	if (codepoint != -2)
-		return;
-
-	struct str fixed_up = str_make ();
-	str_append_data (&fixed_up, *line, p - *line);
-	str_append (&fixed_up, "\xEF\xBF\xBD" /* U+FFFD */);
-	cstr_set (line, str_steal (&fixed_up));
-}
-
-static void
-irc_process_message (const struct irc_message *msg, struct server *s)
-{
-	if (msg->params.len)
-		irc_sanitize_cut_off_utf8 (&msg->params.vector[msg->params.len - 1]);
-
-	// TODO: make use of IRCv3.2 server-time (with fallback to unixtime_msec())
-	//   -> change all calls to log_{server,nick,chghost,outcoming,ctcp}*()
-	//   to take an extra numeric argument specifying time
-	struct irc_handler key = { .name = msg->command };
-	struct irc_handler *handler = bsearch (&key, g_irc_handlers,
-		N_ELEMENTS (g_irc_handlers), sizeof key, irc_handler_cmp_by_name);
-	if (handler)
-		handler->handler (s, msg);
-
-	unsigned long numeric;
-	if (xstrtoul (&numeric, msg->command, 10))
-		irc_process_numeric (s, msg, numeric);
-
-	// Better always make sure everything is in sync rather than care about
-	// each case explicitly whether anything might have changed
-	refresh_prompt (s->ctx);
-}
-
-// --- Message autosplitting magic ---------------------------------------------
-
-// This is the most basic acceptable algorithm; something like ICU with proper
-// locale specification would be needed to make it work better.
-
-static size_t
-wrap_text_for_single_line (const char *text, size_t text_len,
-	size_t line_len, struct str *output)
-{
-	size_t eaten = 0;
-
-	// First try going word by word
-	const char *word_start;
-	const char *word_end = text + strcspn (text, " ");
-	size_t word_len = word_end - text;
-	while (line_len && word_len <= line_len)
-	{
-		if (word_len)
-		{
-			str_append_data (output, text, word_len);
-
-			text += word_len;
-			eaten += word_len;
-			line_len -= word_len;
-		}
-
-		// Find the next word's end
-		word_start = text + strspn (text, " ");
-		word_end = word_start + strcspn (word_start, " ");
-		word_len = word_end - text;
-	}
-
-	if (eaten)
-		// Discard whitespace between words if split
-		return eaten + (word_start - text);
-
-	// And if that doesn't help, cut the longest valid block of characters
-	for (const char *p = text; (size_t) (p - text) <= line_len; )
-	{
-		eaten = p - text;
-		hard_assert (utf8_decode (&p, text_len - eaten) >= 0);
-	}
-	str_append_data (output, text, eaten);
-	return eaten;
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static bool
-wrap_message (const char *message,
-	int line_max, struct strv *output, struct error **e)
-{
-	if (line_max <= 0)
-		goto error;
-
-	int message_left = strlen (message);
-	while (message_left > line_max)
-	{
-		struct str m = str_make ();
-
-		size_t eaten = wrap_text_for_single_line
-			(message, message_left, line_max, &m);
-		if (!eaten)
-		{
-			str_free (&m);
-			goto error;
-		}
-
-		strv_append_owned (output, str_steal (&m));
-		message += eaten;
-		message_left -= eaten;
-	}
-
-	if (message_left)
-		strv_append (output, message);
-
-	return true;
-
-error:
-	// Well, that's just weird
-	error_set (e,
-		"Message splitting was unsuccessful as there was "
-		"too little room for UTF-8 characters");
-	return false;
-}
-
-/// Automatically splits messages that arrive at other clients with our prefix
-/// so that they don't arrive cut off by the server
-static bool
-irc_autosplit_message (struct server *s, const char *message,
-	int fixed_part, struct strv *output, struct error **e)
-{
-	// :<nick>!<user>@<host> <fixed-part><message>
-	int space_in_one_message = 0;
-	if (s->irc_user && s->irc_user_host)
-		space_in_one_message = 510
-			- 1 - (int) strlen (s->irc_user->nickname)
-			- 1 - (int) strlen (s->irc_user_host)
-			- 1 - fixed_part;
-
-	// However we don't always have the full info for message splitting
-	if (!space_in_one_message)
-		strv_append (output, message);
-	else if (!wrap_message (message, space_in_one_message, output, e))
-		return false;
-	return true;
-}
-
-static void
-send_autosplit_message (struct server *s,
-	const char *command, const char *target, const char *message,
-	const char *prefix, const char *suffix)
-{
-	struct buffer *buffer = str_map_find (&s->irc_buffer_map, target);
-	int fixed_part = strlen (command) + 1 + strlen (target) + 1 + 1
-		+ strlen (prefix) + strlen (suffix);
-
-	// We might also want to preserve attributes across splits but
-	// that would make this code a lot more complicated
-
-	struct strv lines = strv_make ();
-	struct error *e = NULL;
-	if (!irc_autosplit_message (s, message, fixed_part, &lines, &e))
-	{
-		log_server_error (s, buffer ? buffer : s->buffer, "#s", e->message);
-		error_free (e);
-	}
-	else
-	{
-		for (size_t i = 0; i < lines.len; i++)
-			irc_send (s, "%s %s :%s%s%s", command, target,
-				prefix, lines.vector[i], suffix);
-	}
-	strv_free (&lines);
-}
-
-#define SEND_AUTOSPLIT_ACTION(s, target, message)                              \
-	send_autosplit_message ((s), "PRIVMSG", (target), (message),               \
-		"\x01" "ACTION ", "\x01")
-
-#define SEND_AUTOSPLIT_PRIVMSG(s, target, message)                             \
-	send_autosplit_message ((s), "PRIVMSG", (target), (message), "", "")
-
-#define SEND_AUTOSPLIT_NOTICE(s, target, message)                              \
-	send_autosplit_message ((s), "NOTICE", (target), (message), "", "")
-
-// --- Configuration dumper ----------------------------------------------------
-
-struct config_dump_data
-{
-	struct strv path;                   ///< Levels
-	struct strv *output;                ///< Where to place new entries
-};
-
-static void config_dump_item
-	(struct config_item *item, struct config_dump_data *data);
-
-static void
-config_dump_children
-	(struct config_item *object, struct config_dump_data *data)
-{
-	hard_assert (object->type == CONFIG_ITEM_OBJECT);
-
-	struct str_map_iter iter = str_map_iter_make (&object->value.object);
-	struct config_item *child;
-	while ((child = str_map_iter_next (&iter)))
-	{
-		strv_append_owned (&data->path, iter.link->key);
-		config_dump_item (child, data);
-		strv_steal (&data->path, data->path.len - 1);
-	}
-}
-
-static void
-config_dump_item (struct config_item *item, struct config_dump_data *data)
-{
-	// Empty objects will show as such
-	if (item->type == CONFIG_ITEM_OBJECT
-	 && item->value.object.len)
-	{
-		config_dump_children (item, data);
-		return;
-	}
-
-	// Currently there's no reason for us to dump unknown items
-	struct config_schema *schema = item->schema;
-	if (!schema)
-		return;
-
-	struct str line = str_make ();
-	if (data->path.len)
-		str_append (&line, data->path.vector[0]);
-	for (size_t i = 1; i < data->path.len; i++)
-		str_append_printf (&line, ".%s", data->path.vector[i]);
-
-	struct str value = str_make ();
-	config_item_write (item, false, &value);
-
-	// Don't bother writing out null values everywhere
-	bool has_default = schema && schema->default_;
-	if (item->type != CONFIG_ITEM_NULL || has_default)
-	{
-		str_append (&line, " = ");
-		str_append_str (&line, &value);
-	}
-
-	if (!schema)
-		str_append (&line, " (unrecognized)");
-	else if (has_default && strcmp (schema->default_, value.str))
-		str_append_printf (&line, " (default: %s)", schema->default_);
-	else if (!has_default && item->type != CONFIG_ITEM_NULL)
-		str_append_printf (&line, " (default: %s)", "null");
-
-	str_free (&value);
-	strv_append_owned (data->output, str_steal (&line));
-}
-
-static void
-config_dump (struct config_item *root, struct strv *output)
-{
-	struct config_dump_data data;
-	data.path = strv_make ();
-	data.output = output;
-
-	config_dump_item (root, &data);
-
-	hard_assert (!data.path.len);
-	strv_free (&data.path);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static int
-strv_sort_cb (const void *a, const void *b)
-{
-	return strcmp (*(const char **) a, *(const char **) b);
-}
-
-static void
-strv_sort (struct strv *self)
-{
-	qsort (self->vector, self->len, sizeof *self->vector, strv_sort_cb);
-}
-
-static void
-dump_matching_options
-	(struct config_item *root, const char *mask, struct strv *output)
-{
-	config_dump (root, output);
-	strv_sort (output);
-
-	// Filter out results by wildcard matching
-	for (size_t i = 0; i < output->len; i++)
-	{
-		// Yeah, I know
-		char *key = cstr_cut_until (output->vector[i], " ");
-		if (fnmatch (mask, key, 0))
-			strv_remove (output, i--);
-		free (key);
-	}
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-save_configuration (struct app_context *ctx)
-{
-	struct str data = str_make ();
-	serialize_configuration (ctx->config.root, &data);
-
-	struct error *e = NULL;
-	char *filename = write_configuration_file (NULL, &data, &e);
-	str_free (&data);
-
-	if (!filename)
-	{
-		log_global_error (ctx,
-			"#s: #s", "Saving configuration failed", e->message);
-		error_free (e);
-	}
-	else
-		log_global_status (ctx, "Configuration written to `#s'", filename);
-	free (filename);
-}
-
-// --- Server management -------------------------------------------------------
-
-static bool
-validate_server_name (const char *name)
-{
-	for (const unsigned char *p = (const unsigned char *) name; *p; p++)
-		if (iscntrl_ascii (*p) || *p == '.')
-			return false;
-	return true;
-}
-
-static const char *
-check_server_name_for_addition (struct app_context *ctx, const char *name)
-{
-	if (!strcasecmp_ascii (name, ctx->global_buffer->name))
-		return "name collides with the global buffer";
-	if (str_map_find (&ctx->servers, name))
-		return "server already exists";
-	if (!validate_server_name (name))
-		return "invalid server name";
-	return NULL;
-}
-
-static struct server *
-server_add (struct app_context *ctx,
-	const char *name, struct config_item *subtree)
-{
-	hard_assert (!str_map_find (&ctx->servers, name));
-
-	struct server *s = server_new (&ctx->poller);
-	s->ctx = ctx;
-	s->name = xstrdup (name);
-	str_map_set (&ctx->servers, s->name, s);
-	s->config = subtree;
-
-	// Add a buffer and activate it
-	struct buffer *buffer = s->buffer = buffer_new (ctx->input,
-		BUFFER_SERVER, irc_make_buffer_name (s, NULL));
-	buffer->server = s;
-
-	buffer_add (ctx, buffer);
-	buffer_activate (ctx, buffer);
-
-	config_schema_apply_to_object (g_config_server, subtree, s);
-	config_schema_call_changed (subtree);
-
-	if (get_config_boolean (s->config, "autoconnect"))
-		// Connect to the server ASAP
-		poller_timer_set (&s->reconnect_tmr, 0);
-	return s;
-}
-
-static void
-server_add_new (struct app_context *ctx, const char *name)
-{
-	// Note that there may already be something in the configuration under
-	// that key that we've ignored earlier, and there may also be
-	// a case-insensitive conflict.  Those things may only happen as a result
-	// of manual edits to the configuration, though, and they're not really
-	// going to break anything.  They only cause surprises when loading.
-	struct str_map *servers = get_servers_config (ctx);
-	struct config_item *subtree = config_item_object ();
-	str_map_set (servers, name, subtree);
-
-	struct server *s = server_add (ctx, name, subtree);
-	struct error *e = NULL;
-	if (!irc_autofill_user_info (s, &e))
-	{
-		log_server_error (s, s->buffer,
-			"#s: #s", "Failed to fill in user details", e->message);
-		error_free (e);
-	}
-}
-
-static void
-server_remove (struct app_context *ctx, struct server *s)
-{
-	hard_assert (!irc_is_connected (s));
-
-	if (s->buffer)
-		buffer_remove_safe (ctx, s->buffer);
-
-	struct str_map_unset_iter iter =
-		str_map_unset_iter_make (&s->irc_buffer_map);
-	struct buffer *buffer;
-	while ((buffer = str_map_unset_iter_next (&iter)))
-		buffer_remove_safe (ctx, buffer);
-	str_map_unset_iter_free (&iter);
-
-	hard_assert (!s->buffer);
-	hard_assert (!s->irc_buffer_map.len);
-	hard_assert (!s->irc_channels.len);
-	soft_assert (!s->irc_users.len);
-
-	str_map_set (get_servers_config (ctx), s->name, NULL);
-	s->config = NULL;
-
-	// This actually destroys the server as it's owned by the map
-	str_map_set (&ctx->servers, s->name, NULL);
-}
-
-static void
-server_rename (struct app_context *ctx, struct server *s, const char *new_name)
-{
-	hard_assert (!str_map_find (&ctx->servers, new_name));
-	str_map_set (&ctx->servers, new_name,
-		str_map_steal (&ctx->servers, s->name));
-
-	struct str_map *servers = get_servers_config (ctx);
-	str_map_set (servers, new_name, str_map_steal (servers, s->name));
-
-	cstr_set (&s->name, xstrdup (new_name));
-	buffer_rename (ctx, s->buffer, new_name);
-
-	struct str_map_iter iter = str_map_iter_make (&s->irc_buffer_map);
-	struct buffer *buffer;
-	while ((buffer = str_map_iter_next (&iter)))
-	{
-		// TODO: creation of buffer names should be centralized -> replace
-		//   calls to buffer_rename() and manual setting of buffer names
-		//   with something like buffer_autorename() -- just mind the mess
-		//   in irc_handle_nick(), which can hopefully be simplified
-		char *x = NULL;
-		switch (buffer->type)
-		{
-		case BUFFER_PM:
-			x = xstrdup_printf ("%s.%s", s->name, buffer->user->nickname);
-			break;
-		case BUFFER_CHANNEL:
-			x = xstrdup_printf ("%s.%s", s->name, buffer->channel->name);
-			break;
-		default:
-			hard_assert (!"unexpected type of server-related buffer");
-		}
-		buffer_rename (ctx, buffer, x);
-		free (x);
-	}
-}
-
-// --- Plugins -----------------------------------------------------------------
-
-/// Returns the basename of the plugin's name without any extensions,
-/// or NULL if the name isn't suitable (starts with a dot)
-static char *
-plugin_config_name (struct plugin *self)
-{
-	const char *begin = self->name;
-	for (const char *p = begin; *p; )
-		if (*p++ == '/')
-			begin = p;
-
-	size_t len = strcspn (begin, ".");
-	if (!len)
-		return NULL;
-
-	// XXX: we might also allow arbitrary strings as object keys (except dots)
-	char *copy = xstrndup (begin, len);
-	for (char *p = copy; *p; p++)
-		if (!config_tokenizer_is_word_char (*p))
-			*p = '_';
-	return copy;
-}
-
-// --- Lua ---------------------------------------------------------------------
-
-// Each plugin has its own Lua state object, so that a/ they don't disturb each
-// other and b/ unloading a plugin releases all resources.
-//
-// References to internal objects (buffers, servers) are all weak.
-
-#ifdef HAVE_LUA
-
-struct lua_plugin
-{
-	struct plugin super;                ///< The structure we're deriving
-	struct app_context *ctx;            ///< Application context
-	lua_State *L;                       ///< Lua state for the main thread
-
-	struct lua_schema_item *schemas;    ///< Registered schema items
-};
-
-static void
-lua_plugin_gc (struct plugin *self_)
-{
-	struct lua_plugin *self = (struct lua_plugin *) self_;
-	lua_gc (self->L, LUA_GCCOLLECT, 0 /* Lua 5.3 required, 5.4 varargs */);
-}
-
-static void
-lua_plugin_free (struct plugin *self_)
-{
-	struct lua_plugin *self = (struct lua_plugin *) self_;
-	lua_close (self->L);
-}
-
-struct plugin_vtable lua_plugin_vtable =
-{
-	.gc   = lua_plugin_gc,
-	.free = lua_plugin_free,
-};
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-// The registry can be used as a cache for weakly referenced objects
-
-static bool
-lua_cache_get (lua_State *L, void *object)
-{
-	lua_rawgetp (L, LUA_REGISTRYINDEX, object);
-	if (lua_isnil (L, -1))
-	{
-		lua_pop (L, 1);
-		return false;
-	}
-	return true;
-}
-
-static void
-lua_cache_store (lua_State *L, void *object, int index)
-{
-	lua_pushvalue (L, index);
-	lua_rawsetp (L, LUA_REGISTRYINDEX, object);
-}
-
-static void
-lua_cache_invalidate (lua_State *L, void *object)
-{
-	lua_pushnil (L);
-	lua_rawsetp (L, LUA_REGISTRYINDEX, object);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-/// Append a traceback to all errors so that we can later extract it
-static int
-lua_plugin_error_handler (lua_State *L)
-{
-	luaL_traceback (L, L, luaL_checkstring (L, 1), 1);
-	return 1;
-}
-
-static bool
-lua_plugin_process_error (struct lua_plugin *self, const char *message,
-	struct error **e)
-{
-	struct strv v = strv_make ();
-	cstr_split (message, "\n", true, &v);
-
-	if (v.len < 2)
-		error_set (e, "%s", message);
-	else
-	{
-		error_set (e, "%s", v.vector[0]);
-		log_global_debug (self->ctx, "Lua: plugin \"#s\": #s",
-			self->super.name, v.vector[1]);
-		for (size_t i = 2; i < v.len; i++)
-			log_global_debug (self->ctx, " #s", v.vector[i]);
-	}
-
-	strv_free (&v);
-	return false;
-}
-
-/// Call a Lua function and process errors using our special error handler
-static bool
-lua_plugin_call (struct lua_plugin *self,
-	int n_params, int n_results, struct error **e)
-{
-	// XXX: this may eventually be called from a thread, then this is wrong
-	lua_State *L = self->L;
-
-	// We need to pop the error handler at the end
-	lua_pushcfunction (L, lua_plugin_error_handler);
-	int error_handler_idx = -n_params - 2;
-	lua_insert (L, error_handler_idx);
-
-	if (!lua_pcall (L, n_params, n_results, error_handler_idx))
-	{
-		lua_remove (L, -n_results - 1);
-		return true;
-	}
-
-	(void) lua_plugin_process_error (self, lua_tostring (L, -1), e);
-	lua_pop (L, 2);
-	return false;
-}
-
-/// Convenience function; replaces the "original" string or produces an error
-static bool
-lua_plugin_handle_string_filter_result (struct lua_plugin *self,
-	char **original, bool utf8, struct error **e)
-{
-	lua_State *L = self->L;
-	if (lua_isnil (L, -1))
-	{
-		cstr_set (original, NULL);
-		return true;
-	}
-	if (!lua_isstring (L, -1))
-		return error_set (e, "must return either a string or nil");
-
-	size_t len;
-	const char *processed = lua_tolstring (L, -1, &len);
-	if (utf8 && !utf8_validate (processed, len))
-		return error_set (e, "must return valid UTF-8");
-
-	// Only replace the string if it's different
-	if (strcmp (processed, *original))
-		cstr_set (original, xstrdup (processed));
-	return true;
-}
-
-static const char *
-lua_plugin_check_utf8 (lua_State *L, int arg)
-{
-	size_t len;
-	const char *s = luaL_checklstring (L, arg, &len);
-	luaL_argcheck (L, utf8_validate (s, len), arg, "must be valid UTF-8");
-	return s;
-}
-
-static void
-lua_plugin_log_error
-	(struct lua_plugin *self, const char *where, struct error *error)
-{
-	log_global_error (self->ctx, "Lua: plugin \"#s\": #s: #s",
-		self->super.name, where, error->message);
-	error_free (error);
-}
-
-/// Pop "n" values from the stack into a table, using their indexes as keys
-static void
-lua_plugin_pack (lua_State *L, int n)
-{
-	lua_createtable (L, n, 0);
-	lua_insert (L, -n - 1);
-	for (int i = n; i; i--)
-		lua_rawseti (L, -i - 1, i);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-lua_plugin_kv (lua_State *L, const char *key, const char *value)
-{
-	lua_pushstring (L, value);
-	lua_setfield (L, -2, key);
-}
-
-static void
-lua_plugin_push_message (lua_State *L, const struct irc_message *msg)
-{
-	lua_createtable (L, 0, 4);
-
-	lua_createtable (L, msg->tags.len, 0);
-	struct str_map_iter iter = str_map_iter_make (&msg->tags);
-	const char *value;
-	while ((value = str_map_iter_next (&iter)))
-		lua_plugin_kv (L, iter.link->key, value);
-	lua_setfield (L, -2, "tags");
-
-	// TODO: parse the prefix further?
-	if (msg->prefix)   lua_plugin_kv (L, "prefix",  msg->prefix);
-	if (msg->command)  lua_plugin_kv (L, "command", msg->command);
-
-	lua_createtable (L, msg->params.len, 0);
-	for (size_t i = 0; i < msg->params.len; i++)
-	{
-		lua_pushstring (L, msg->params.vector[i]);
-		lua_rawseti (L, -2, i + 1);
-	}
-	lua_setfield (L, -2, "params");
-}
-
-static int
-lua_plugin_parse (lua_State *L)
-{
-	struct irc_message msg;
-	irc_parse_message (&msg, luaL_checkstring (L, 1));
-	lua_plugin_push_message (L, &msg);
-	irc_free_message (&msg);
-	return 1;
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-// Lua code can use weakly referenced wrappers for internal objects.
-
-typedef struct weak_ref_link *
-	(*lua_weak_ref_fn) (void *object, destroy_cb_fn cb, void *user_data);
-typedef void (*lua_weak_unref_fn) (void *object, struct weak_ref_link **link);
-
-struct lua_weak_info
-{
-	const char *name;                   ///< Metatable name
-	struct ispect_field *ispect;        ///< Introspection data
-
-	lua_weak_ref_fn ref;                ///< Weak link invalidator
-	lua_weak_unref_fn unref;            ///< Weak link generator
-};
-
-struct lua_weak
-{
-	struct lua_plugin *plugin;          ///< The plugin we belong to
-	struct lua_weak_info *info;         ///< Introspection data
-	void *object;                       ///< The object
-	struct weak_ref_link *weak_ref;     ///< A weak reference link
-};
-
-static void
-lua_weak_invalidate (void *object, void *user_data)
-{
-	struct lua_weak *wrapper = user_data;
-	wrapper->object = NULL;
-	wrapper->weak_ref = NULL;
-	// This can in theory call the GC, order isn't arbitrary here
-	lua_cache_invalidate (wrapper->plugin->L, object);
-}
-
-static void
-lua_weak_push (lua_State *L, struct lua_plugin *plugin, void *object,
-	struct lua_weak_info *info)
-{
-	if (!object)
-	{
-		lua_pushnil (L);
-		return;
-	}
-	if (lua_cache_get (L, object))
-		return;
-
-	struct lua_weak *wrapper = lua_newuserdata (L, sizeof *wrapper);
-	luaL_setmetatable (L, info->name);
-	wrapper->plugin = plugin;
-	wrapper->info = info;
-	wrapper->object = object;
-	wrapper->weak_ref = NULL;
-	if (info->ref)
-		wrapper->weak_ref = info->ref (object, lua_weak_invalidate, wrapper);
-	lua_cache_store (L, object, -1);
-}
-
-static int
-lua_weak_gc (lua_State *L, const struct lua_weak_info *info)
-{
-	struct lua_weak *wrapper = luaL_checkudata (L, 1, info->name);
-	if (wrapper->object)
-	{
-		lua_cache_invalidate (L, wrapper->object);
-		if (info->unref)
-			info->unref (wrapper->object, &wrapper->weak_ref);
-		wrapper->object = NULL;
-	}
-	return 0;
-}
-
-static struct lua_weak *
-lua_weak_deref (lua_State *L, const struct lua_weak_info *info)
-{
-	struct lua_weak *weak = luaL_checkudata (L, 1, info->name);
-	luaL_argcheck (L, weak->object, 1, "dead reference used");
-	return weak;
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-#define LUA_WEAK_DECLARE(id, metatable_id)                                     \
-	static struct lua_weak_info lua_ ## id ## _info =                          \
-	{                                                                          \
-		.name   = metatable_id,                                                \
-		.ispect = g_ ## id ## _ispect,                                         \
-		.ref    = (lua_weak_ref_fn)   id ## _weak_ref,                         \
-		.unref  = (lua_weak_unref_fn) id ## _weak_unref,                       \
-	};
-
-#define XLUA_USER_METATABLE    "user"     ///< Identifier for Lua metatable
-#define XLUA_CHANNEL_METATABLE "channel"  ///< Identifier for Lua metatable
-#define XLUA_BUFFER_METATABLE  "buffer"   ///< Identifier for Lua metatable
-#define XLUA_SERVER_METATABLE  "server"   ///< Identifier for Lua metatable
-
-LUA_WEAK_DECLARE (user,    XLUA_USER_METATABLE)
-LUA_WEAK_DECLARE (channel, XLUA_CHANNEL_METATABLE)
-LUA_WEAK_DECLARE (buffer,  XLUA_BUFFER_METATABLE)
-LUA_WEAK_DECLARE (server,  XLUA_SERVER_METATABLE)
-
-// The global context is kind of fake and doesn't have any ref-counting,
-// however it's still very much an object
-static struct lua_weak_info lua_ctx_info =
-{
-	.name = PROGRAM_NAME,
-	.ispect = g_ctx_ispect,
-};
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static int
-lua_user_gc (lua_State *L)
-{
-	return lua_weak_gc (L, &lua_user_info);
-}
-
-static int
-lua_user_get_channels (lua_State *L)
-{
-	struct lua_weak *wrapper = lua_weak_deref (L, &lua_user_info);
-	struct user *user = wrapper->object;
-
-	int i = 1;
-	lua_newtable (L);
-	LIST_FOR_EACH (struct user_channel, iter, user->channels)
-	{
-		lua_weak_push (L, wrapper->plugin, iter->channel, &lua_channel_info);
-		lua_rawseti (L, -2, i++);
-	}
-	return 1;
-}
-
-static luaL_Reg lua_user_table[] =
-{
-	{ "__gc",         lua_user_gc           },
-	{ "get_channels", lua_user_get_channels },
-	{ NULL,           NULL                  }
-};
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static int
-lua_channel_gc (lua_State *L)
-{
-	return lua_weak_gc (L, &lua_channel_info);
-}
-
-static int
-lua_channel_get_users (lua_State *L)
-{
-	struct lua_weak *wrapper = lua_weak_deref (L, &lua_channel_info);
-	struct channel *channel = wrapper->object;
-
-	int i = 1;
-	lua_newtable (L);
-	LIST_FOR_EACH (struct channel_user, iter, channel->users)
-	{
-		lua_createtable (L, 0, 2);
-		lua_weak_push (L, wrapper->plugin, iter->user, &lua_user_info);
-		lua_setfield (L, -2, "user");
-		lua_plugin_kv (L, "prefixes", iter->prefixes);
-
-		lua_rawseti (L, -2, i++);
-	}
-	return 1;
-}
-
-static luaL_Reg lua_channel_table[] =
-{
-	{ "__gc",      lua_channel_gc        },
-	{ "get_users", lua_channel_get_users },
-	{ NULL,        NULL                  }
-};
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static int
-lua_buffer_gc (lua_State *L)
-{
-	return lua_weak_gc (L, &lua_buffer_info);
-}
-
-static int
-lua_buffer_log (lua_State *L)
-{
-	struct lua_weak *wrapper = lua_weak_deref (L, &lua_buffer_info);
-	struct buffer *buffer = wrapper->object;
-	const char *message = lua_plugin_check_utf8 (L, 2);
-	log_full (wrapper->plugin->ctx, buffer->server, buffer,
-		BUFFER_LINE_STATUS, "#s", message);
-	return 0;
-}
-
-static int
-lua_buffer_execute (lua_State *L)
-{
-	struct lua_weak *wrapper = lua_weak_deref (L, &lua_buffer_info);
-	struct buffer *buffer = wrapper->object;
-	const char *line = lua_plugin_check_utf8 (L, 2);
-	process_input_utf8 (wrapper->plugin->ctx, buffer, line, 0);
-	return 0;
-}
-
-static luaL_Reg lua_buffer_table[] =
-{
-	{ "__gc",        lua_buffer_gc          },
-	{ "log",         lua_buffer_log         },
-	{ "execute",     lua_buffer_execute     },
-	{ NULL,          NULL                   }
-};
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static int
-lua_server_gc (lua_State *L)
-{
-	return lua_weak_gc (L, &lua_server_info);
-}
-
-static int
-lua_server_get_state (lua_State *L)
-{
-	struct lua_weak *wrapper = lua_weak_deref (L, &lua_server_info);
-	struct server *server = wrapper->object;
-	switch (server->state)
-	{
-	case IRC_DISCONNECTED: lua_pushstring (L, "disconnected"); break;
-	case IRC_CONNECTING:   lua_pushstring (L, "connecting");   break;
-	case IRC_CONNECTED:    lua_pushstring (L, "connected");    break;
-	case IRC_REGISTERED:   lua_pushstring (L, "registered");   break;
-	case IRC_CLOSING:      lua_pushstring (L, "closing");      break;
-	case IRC_HALF_CLOSED:  lua_pushstring (L, "half_closed");  break;
-	}
-	return 1;
-}
-
-static int
-lua_server_send (lua_State *L)
-{
-	struct lua_weak *wrapper = lua_weak_deref (L, &lua_server_info);
-	struct server *server = wrapper->object;
-	irc_send (server, "%s", luaL_checkstring (L, 2));
-	return 0;
-}
-
-static luaL_Reg lua_server_table[] =
-{
-	{ "__gc",       lua_server_gc         },
-	{ "get_state",  lua_server_get_state  },
-	{ "send",       lua_server_send       },
-	{ NULL,         NULL                  }
-};
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-#define XLUA_HOOK_METATABLE "hook"      ///< Identifier for the Lua metatable
-
-enum lua_hook_type
-{
-	XLUA_HOOK_DEFUNCT,                  ///< No longer functional
-	XLUA_HOOK_INPUT,                    ///< Input hook
-	XLUA_HOOK_IRC,                      ///< IRC hook
-	XLUA_HOOK_PROMPT,                   ///< Prompt hook
-	XLUA_HOOK_COMPLETION,               ///< Autocomplete
-};
-
-struct lua_hook
-{
-	struct lua_plugin *plugin;          ///< The plugin we belong to
-	enum lua_hook_type type;            ///< Type of the hook
-	int ref_callback;                   ///< Reference to the callback
-	union
-	{
-		struct hook hook;               ///< Hook base structure
-		struct input_hook input_hook;   ///< Input hook
-		struct irc_hook irc_hook;       ///< IRC hook
-		struct prompt_hook prompt_hook; ///< IRC hook
-		struct completion_hook c_hook;  ///< Autocomplete hook
-	}
-	data;                               ///< Hook data
-};
-
-static int
-lua_hook_unhook (lua_State *L)
-{
-	struct lua_hook *hook = luaL_checkudata (L, 1, XLUA_HOOK_METATABLE);
-	switch (hook->type)
-	{
-	case XLUA_HOOK_INPUT:
-		LIST_UNLINK (hook->plugin->ctx->input_hooks,      &hook->data.hook);
-		break;
-	case XLUA_HOOK_IRC:
-		LIST_UNLINK (hook->plugin->ctx->irc_hooks,        &hook->data.hook);
-		break;
-	case XLUA_HOOK_PROMPT:
-		LIST_UNLINK (hook->plugin->ctx->prompt_hooks,     &hook->data.hook);
-		refresh_prompt (hook->plugin->ctx);
-		break;
-	case XLUA_HOOK_COMPLETION:
-		LIST_UNLINK (hook->plugin->ctx->completion_hooks, &hook->data.hook);
-		break;
-	default:
-		hard_assert (!"invalid hook type");
-	case XLUA_HOOK_DEFUNCT:
-		break;
-	}
-
-	luaL_unref (L, LUA_REGISTRYINDEX, hook->ref_callback);
-	hook->ref_callback = LUA_REFNIL;
-
-	// The hook no longer has to stay alive
-	hook->type = XLUA_HOOK_DEFUNCT;
-	lua_cache_invalidate (L, hook);
-	return 0;
-}
-
-// The hook dies either when the plugin requests it or at plugin unload
-static luaL_Reg lua_hook_table[] =
-{
-	{ "unhook", lua_hook_unhook },
-	{ "__gc",   lua_hook_unhook },
-	{ NULL,     NULL            }
-};
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static char *
-lua_input_hook_filter (struct input_hook *self, struct buffer *buffer,
-	char *input)
-{
-	struct lua_hook *hook =
-		CONTAINER_OF (self, struct lua_hook, data.input_hook);
-	struct lua_plugin *plugin = hook->plugin;
-	lua_State *L = plugin->L;
-
-	lua_rawgeti (L, LUA_REGISTRYINDEX, hook->ref_callback);
-	lua_rawgetp (L, LUA_REGISTRYINDEX, hook);             // 1: hook
-	lua_weak_push (L, plugin, buffer, &lua_buffer_info);  // 2: buffer
-	lua_pushstring (L, input);                            // 3: input
-
-	struct error *e = NULL;
-	if (lua_plugin_call (plugin, 3, 1, &e))
-	{
-		lua_plugin_handle_string_filter_result (plugin, &input, true, &e);
-		lua_pop (L, 1);
-	}
-	if (e)
-		lua_plugin_log_error (plugin, "input hook", e);
-	return input;
-}
-
-static char *
-lua_irc_hook_filter (struct irc_hook *self, struct server *s, char *message)
-{
-	struct lua_hook *hook =
-		CONTAINER_OF (self, struct lua_hook, data.irc_hook);
-	struct lua_plugin *plugin = hook->plugin;
-	lua_State *L = plugin->L;
-
-	lua_rawgeti (L, LUA_REGISTRYINDEX, hook->ref_callback);
-	lua_rawgetp (L, LUA_REGISTRYINDEX, hook);        // 1: hook
-	lua_weak_push (L, plugin, s, &lua_server_info);  // 2: server
-	lua_pushstring (L, message);                     // 3: message
-
-	struct error *e = NULL;
-	if (lua_plugin_call (plugin, 3, 1, &e))
-	{
-		lua_plugin_handle_string_filter_result (plugin, &message, false, &e);
-		lua_pop (L, 1);
-	}
-	if (e)
-		lua_plugin_log_error (plugin, "IRC hook", e);
-	return message;
-}
-
-static char *
-lua_prompt_hook_make (struct prompt_hook *self)
-{
-	struct lua_hook *hook =
-		CONTAINER_OF (self, struct lua_hook, data.prompt_hook);
-	struct lua_plugin *plugin = hook->plugin;
-	lua_State *L = plugin->L;
-
-	lua_rawgeti (L, LUA_REGISTRYINDEX, hook->ref_callback);
-	lua_rawgetp (L, LUA_REGISTRYINDEX, hook);  // 1: hook
-
-	struct error *e = NULL;
-	char *prompt = xstrdup ("");
-	if (lua_plugin_call (plugin, 1, 1, &e))
-	{
-		lua_plugin_handle_string_filter_result (plugin, &prompt, true, &e);
-		lua_pop (L, 1);
-	}
-	if (e)
-		lua_plugin_log_error (plugin, "prompt hook", e);
-	return prompt;
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-lua_plugin_push_completion (lua_State *L, struct completion *data)
-{
-	lua_createtable (L, 0, 3);
-
-	lua_pushstring (L, data->line);
-	lua_setfield (L, -2, "line");
-
-	lua_createtable (L, data->words_len, 0);
-	for (size_t i = 0; i < data->words_len; i++)
-	{
-		lua_pushlstring (L, data->line + data->words[i].start,
-			data->words[i].end - data->words[i].start);
-		lua_rawseti (L, -2, i + 1);
-	}
-	lua_setfield (L, -2, "words");
-
-	lua_pushinteger (L, data->location);
-	lua_setfield (L, -2, "location");
-}
-
-static bool
-lua_completion_hook_process_value (lua_State *L, struct strv *output,
-	struct error **e)
-{
-	if (lua_type (L, -1) != LUA_TSTRING)
-	{
-		return error_set (e,
-			"%s: %s", "invalid type", lua_typename (L, lua_type (L, -1)));
-	}
-
-	size_t len;
-	const char *value = lua_tolstring (L, -1, &len);
-	if (!utf8_validate (value, len))
-		return error_set (e, "must be valid UTF-8");
-
-	strv_append (output, value);
-	return true;
-}
-
-static bool
-lua_completion_hook_process (lua_State *L, struct strv *output,
-	struct error **e)
-{
-	if (lua_isnil (L, -1))
-		return true;
-	if (!lua_istable (L, -1))
-		return error_set (e, "must return either a table or nil");
-
-	bool success = true;
-	for (lua_Integer i = 1; success && lua_rawgeti (L, -1, i); i++)
-		if ((success = lua_completion_hook_process_value (L, output, e)))
-			lua_pop (L, 1);
-	lua_pop (L, 1);
-	return success;
-}
-
-static void
-lua_completion_hook_complete (struct completion_hook *self,
-	struct completion *data, const char *word, struct strv *output)
-{
-	struct lua_hook *hook =
-		CONTAINER_OF (self, struct lua_hook, data.c_hook);
-	struct lua_plugin *plugin = hook->plugin;
-	lua_State *L = plugin->L;
-
-	lua_rawgeti (L, LUA_REGISTRYINDEX, hook->ref_callback);
-	lua_rawgetp (L, LUA_REGISTRYINDEX, hook);  // 1: hook
-	lua_plugin_push_completion (L, data);      // 2: data
-
-	lua_weak_push (L, plugin, plugin->ctx->current_buffer, &lua_buffer_info);
-	lua_setfield (L, -2, "buffer");
-
-	lua_pushstring (L, word);                  // 3: word
-
-	struct error *e = NULL;
-	if (lua_plugin_call (plugin, 3, 1, &e))
-	{
-		lua_completion_hook_process (L, output, &e);
-		lua_pop (L, 1);
-	}
-	if (e)
-		lua_plugin_log_error (plugin, "autocomplete hook", e);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static struct lua_hook *
-lua_plugin_push_hook (lua_State *L, struct lua_plugin *plugin,
-	int callback_index, enum lua_hook_type type, int priority)
-{
-	luaL_checktype (L, callback_index, LUA_TFUNCTION);
-
-	struct lua_hook *hook = lua_newuserdata (L, sizeof *hook);
-	luaL_setmetatable (L, XLUA_HOOK_METATABLE);
-	memset (hook, 0, sizeof *hook);
-	hook->data.hook.priority = priority;
-	hook->type = type;
-	hook->plugin = plugin;
-
-	lua_pushvalue (L, callback_index);
-	hook->ref_callback = luaL_ref (L, LUA_REGISTRYINDEX);
-
-	// Make sure the hook doesn't get garbage collected and return it
-	lua_cache_store (L, hook, -1);
-	return hook;
-}
-
-static int
-lua_plugin_hook_input (lua_State *L)
-{
-	struct lua_plugin *plugin = lua_touserdata (L, lua_upvalueindex (1));
-	struct lua_hook *hook = lua_plugin_push_hook
-		(L, plugin, 1, XLUA_HOOK_INPUT, luaL_optinteger (L, 2, 0));
-	hook->data.input_hook.filter = lua_input_hook_filter;
-	plugin->ctx->input_hooks =
-		hook_insert (plugin->ctx->input_hooks, &hook->data.hook);
-	return 1;
-}
-
-static int
-lua_plugin_hook_irc (lua_State *L)
-{
-	struct lua_plugin *plugin = lua_touserdata (L, lua_upvalueindex (1));
-	struct lua_hook *hook = lua_plugin_push_hook
-		(L, plugin, 1, XLUA_HOOK_IRC, luaL_optinteger (L, 2, 0));
-	hook->data.irc_hook.filter = lua_irc_hook_filter;
-	plugin->ctx->irc_hooks =
-		hook_insert (plugin->ctx->irc_hooks, &hook->data.hook);
-	return 1;
-}
-
-static int
-lua_plugin_hook_prompt (lua_State *L)
-{
-	struct lua_plugin *plugin = lua_touserdata (L, lua_upvalueindex (1));
-	struct lua_hook *hook = lua_plugin_push_hook
-		(L, plugin, 1, XLUA_HOOK_PROMPT, luaL_optinteger (L, 2, 0));
-	hook->data.prompt_hook.make = lua_prompt_hook_make;
-	plugin->ctx->prompt_hooks =
-		hook_insert (plugin->ctx->prompt_hooks, &hook->data.hook);
-	refresh_prompt (plugin->ctx);
-	return 1;
-}
-
-static int
-lua_plugin_hook_completion (lua_State *L)
-{
-	struct lua_plugin *plugin = lua_touserdata (L, lua_upvalueindex (1));
-	struct lua_hook *hook = lua_plugin_push_hook
-		(L, plugin, 1, XLUA_HOOK_COMPLETION, luaL_optinteger (L, 2, 0));
-	hook->data.c_hook.complete = lua_completion_hook_complete;
-	plugin->ctx->completion_hooks =
-		hook_insert (plugin->ctx->completion_hooks, &hook->data.hook);
-	return 1;
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-#define XLUA_SCHEMA_METATABLE "schema"  ///< Identifier for the Lua metatable
-
-struct lua_schema_item
-{
-	LIST_HEADER (struct lua_schema_item)
-
-	struct lua_plugin *plugin;          ///< The plugin we belong to
-	struct config_item *item;           ///< The item managed by the schema
-	struct config_schema schema;        ///< Schema itself
-
-	int ref_validate;                   ///< Reference to "validate" callback
-	int ref_on_change;                  ///< Reference to "on_change" callback
-};
-
-static void
-lua_schema_item_discard (struct lua_schema_item *self)
-{
-	if (self->item)
-	{
-		self->item->schema = NULL;
-		self->item->user_data = NULL;
-		self->item = NULL;
-		LIST_UNLINK (self->plugin->schemas, self);
-	}
-
-	// Now that we've disconnected from the item, allow garbage collection
-	lua_cache_invalidate (self->plugin->L, self);
-}
-
-static int
-lua_schema_item_gc (lua_State *L)
-{
-	struct lua_schema_item *self =
-		luaL_checkudata (L, 1, XLUA_SCHEMA_METATABLE);
-	lua_schema_item_discard (self);
-
-	free ((char *) self->schema.name);
-	free ((char *) self->schema.comment);
-	free ((char *) self->schema.default_);
-
-	luaL_unref (L, LUA_REGISTRYINDEX, self->ref_validate);
-	luaL_unref (L, LUA_REGISTRYINDEX, self->ref_on_change);
-	return 0;
-}
-
-static luaL_Reg lua_schema_table[] =
-{
-	{ "__gc", lua_schema_item_gc },
-	{ NULL,   NULL               }
-};
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-/// Unfortunately this has the same problem as JSON libraries in that Lua
-/// cannot store null values in containers (it has no distinct "undefined" type)
-static void
-lua_plugin_push_config_item (lua_State *L, const struct config_item *item)
-{
-	switch (item->type)
-	{
-	case CONFIG_ITEM_NULL:
-		lua_pushnil (L);
-		break;
-	case CONFIG_ITEM_OBJECT:
-	{
-		lua_createtable (L, 0, item->value.object.len);
-
-		struct str_map_iter iter = str_map_iter_make (&item->value.object);
-		struct config_item *child;
-		while ((child = str_map_iter_next (&iter)))
-		{
-			lua_plugin_push_config_item (L, child);
-			lua_setfield (L, -2, iter.link->key);
-		}
-		break;
-	}
-	case CONFIG_ITEM_BOOLEAN:
-		lua_pushboolean (L, item->value.boolean);
-		break;
-	case CONFIG_ITEM_INTEGER:
-		lua_pushinteger (L, item->value.integer);
-		break;
-	case CONFIG_ITEM_STRING:
-	case CONFIG_ITEM_STRING_ARRAY:
-		lua_pushlstring (L, item->value.string.str, item->value.string.len);
-		break;
-	}
-}
-
-static bool
-lua_schema_item_validate (const struct config_item *item, struct error **e)
-{
-	struct lua_schema_item *self = item->user_data;
-	if (self->ref_validate == LUA_REFNIL)
-		return true;
-
-	lua_State *L = self->plugin->L;
-	lua_rawgeti (L, LUA_REGISTRYINDEX, self->ref_validate);
-	lua_plugin_push_config_item (L, item);
-
-	// The callback can make use of error("...", 0) to produce nice messages
-	return lua_plugin_call (self->plugin, 1, 0, e);
-}
-
-static void
-lua_schema_item_on_change (struct config_item *item)
-{
-	struct lua_schema_item *self = item->user_data;
-	if (self->ref_on_change == LUA_REFNIL)
-		return;
-
-	lua_State *L = self->plugin->L;
-	lua_rawgeti (L, LUA_REGISTRYINDEX, self->ref_on_change);
-	lua_plugin_push_config_item (L, item);
-
-	struct error *e = NULL;
-	if (!lua_plugin_call (self->plugin, 1, 0, &e))
-		lua_plugin_log_error (self->plugin, "schema on_change", e);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static int
-lua_plugin_decode_config_item_type (const char *type)
-{
-	if (!strcmp (type, "null"))         return CONFIG_ITEM_NULL;
-	if (!strcmp (type, "object"))       return CONFIG_ITEM_OBJECT;
-	if (!strcmp (type, "boolean"))      return CONFIG_ITEM_BOOLEAN;
-	if (!strcmp (type, "integer"))      return CONFIG_ITEM_INTEGER;
-	if (!strcmp (type, "string"))       return CONFIG_ITEM_STRING;
-	if (!strcmp (type, "string_array")) return CONFIG_ITEM_STRING_ARRAY;
-	return -1;
-}
-
-static bool
-lua_plugin_check_field (lua_State *L, int idx, const char *name,
-	int expected, bool optional)
-{
-	int found = lua_getfield (L, idx, name);
-	if (found == expected)
-		return true;
-	if (optional && found == LUA_TNIL)
-		return false;
-
-	const char *message = optional
-		? "invalid field \"%s\" (found: %s, expected: %s or nil)"
-		: "invalid or missing field \"%s\" (found: %s, expected: %s)";
-	return luaL_error (L, message, name,
-		lua_typename (L, found), lua_typename (L, expected));
-}
-
-static int
-lua_plugin_add_config_schema (lua_State *L, struct lua_plugin *plugin,
-	struct config_item *subtree, const char *name)
-{
-	struct config_item *item = str_map_find (&subtree->value.object, name);
-	// This should only ever happen because of a conflict with another plugin;
-	// this is the price we pay for simplicity
-	if (item && item->schema)
-	{
-		struct lua_schema_item *owner = item->user_data;
-		return luaL_error (L, "conflicting schema item: %s (owned by: %s)",
-			name, owner->plugin->super.name);
-	}
-
-	// Create and initialize a full userdata wrapper for the schema item
-	struct lua_schema_item *self = lua_newuserdata (L, sizeof *self);
-	luaL_setmetatable (L, XLUA_SCHEMA_METATABLE);
-	memset (self, 0, sizeof *self);
-
-	self->plugin = plugin;
-	self->ref_on_change = LUA_REFNIL;
-	self->ref_validate = LUA_REFNIL;
-
-	struct config_schema *schema = &self->schema;
-	schema->name      = xstrdup (name);
-	schema->comment   = NULL;
-	schema->default_  = NULL;
-	schema->type      = CONFIG_ITEM_NULL;
-	schema->on_change = lua_schema_item_on_change;
-	schema->validate  = lua_schema_item_validate;
-
-	// Try to update the defaults with values provided by the plugin
-	int values = lua_absindex (L, -2);
-	(void) lua_plugin_check_field (L, values, "type", LUA_TSTRING, false);
-	int item_type = schema->type =
-		lua_plugin_decode_config_item_type (lua_tostring (L, -1));
-	if (item_type == -1)
-		return luaL_error (L, "invalid type of schema item");
-
-	if (lua_plugin_check_field (L, values, "comment",   LUA_TSTRING, true))
-		schema->comment = xstrdup (lua_tostring (L, -1));
-	if (lua_plugin_check_field (L, values, "default",   LUA_TSTRING, true))
-		schema->default_ = xstrdup (lua_tostring (L, -1));
-
-	lua_pop (L, 3);
-
-	(void) lua_plugin_check_field (L, values, "on_change", LUA_TFUNCTION, true);
-	self->ref_on_change = luaL_ref (L, LUA_REGISTRYINDEX);
-	(void) lua_plugin_check_field (L, values, "validate",  LUA_TFUNCTION, true);
-	self->ref_validate = luaL_ref (L, LUA_REGISTRYINDEX);
-
-	// Try to install the created schema item into our configuration
-	struct error *warning = NULL, *e = NULL;
-	item = config_schema_initialize_item
-		(&self->schema, subtree, self, &warning, &e);
-
-	if (warning)
-	{
-		log_global_error (plugin->ctx, "Lua: plugin \"#s\": #s",
-			plugin->super.name, warning->message);
-		error_free (warning);
-	}
-	if (e)
-	{
-		const char *error = lua_pushstring (L, e->message);
-		error_free (e);
-		return luaL_error (L, "%s", error);
-	}
-
-	self->item = item;
-	LIST_PREPEND (plugin->schemas, self);
-
-	// On the stack there should be the schema table and the resulting object;
-	// we need to make sure Lua doesn't GC the second and get rid of them both
-	lua_cache_store (L, self, -1);
-	lua_pop (L, 2);
-	return 0;
-}
-
-static int
-lua_plugin_setup_config (lua_State *L)
-{
-	struct lua_plugin *plugin = lua_touserdata (L, lua_upvalueindex (1));
-	luaL_checktype (L, 1, LUA_TTABLE);
-
-	struct app_context *ctx = plugin->ctx;
-	char *config_name = plugin_config_name (&plugin->super);
-	if (!config_name)
-		return luaL_error (L, "unsuitable plugin name");
-
-	struct str_map *plugins = get_plugins_config (ctx);
-	struct config_item *subtree = str_map_find (plugins, config_name);
-	if (!subtree || subtree->type != CONFIG_ITEM_OBJECT)
-		str_map_set (plugins, config_name, (subtree = config_item_object ()));
-	free (config_name);
-
-	LIST_FOR_EACH (struct lua_schema_item, iter, plugin->schemas)
-		lua_schema_item_discard (iter);
-
-	// Load all schema items and apply them to the plugin's subtree
-	lua_pushnil (L);
-	while (lua_next (L, 1))
-	{
-		if (lua_type (L, -2) != LUA_TSTRING
-		 || lua_type (L, -1) != LUA_TTABLE)
-			return luaL_error (L, "%s: %s -> %s", "invalid types",
-				lua_typename (L, lua_type (L, -2)),
-				lua_typename (L, lua_type (L, -1)));
-		lua_plugin_add_config_schema (L, plugin, subtree, lua_tostring (L, -2));
-	}
-
-	// Let the plugin read out configuration via on_change callbacks
-	config_schema_call_changed (subtree);
-	return 0;
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-/// Identifier for the Lua metatable
-#define XLUA_CONNECTION_METATABLE "connection"
-
-struct lua_connection
-{
-	struct lua_plugin *plugin;          ///< The plugin we belong to
-	struct poller_fd socket_event;      ///< Socket is ready
-	int socket_fd;                      ///< Underlying connected socket
-
-	bool got_eof;                       ///< Half-closed by remote host
-	bool closing;                       ///< We're closing the connection
-
-	struct str read_buffer;             ///< Read buffer
-	struct str write_buffer;            ///< Write buffer
-};
-
-static void
-lua_connection_update_poller (struct lua_connection *self)
-{
-	poller_fd_set (&self->socket_event,
-		self->write_buffer.len ? (POLLIN | POLLOUT) : POLLIN);
-}
-
-static int
-lua_connection_send (lua_State *L)
-{
-	struct lua_connection *self =
-		luaL_checkudata (L, 1, XLUA_CONNECTION_METATABLE);
-	if (self->socket_fd == -1)
-		return luaL_error (L, "connection has been closed");
-
-	size_t len;
-	const char *s = luaL_checklstring (L, 2, &len);
-	str_append_data (&self->write_buffer, s, len);
-	lua_connection_update_poller (self);
-	return 0;
-}
-
-static void
-lua_connection_discard (struct lua_connection *self)
-{
-	if (self->socket_fd != -1)
-	{
-		poller_fd_reset (&self->socket_event);
-		xclose (self->socket_fd);
-		self->socket_fd = -1;
-
-		str_free (&self->read_buffer);
-		str_free (&self->write_buffer);
-	}
-
-	// Connection is dead, we don't need to hold onto any resources anymore
-	lua_cache_invalidate (self->plugin->L, self);
-}
-
-static int
-lua_connection_close (lua_State *L)
-{
-	struct lua_connection *self =
-		luaL_checkudata (L, 1, XLUA_CONNECTION_METATABLE);
-	if (self->socket_fd != -1)
-	{
-		self->closing = true;
-		// NOTE: this seems to do nothing on Linux
-		(void) shutdown (self->socket_fd, SHUT_RD);
-
-		// Right now we want to wait until all data is flushed to the socket
-		// and can't call close() here immediately -- a rewrite to use async
-		// would enable the user to await on either :send() or :flush();
-		// a successful send() doesn't necessarily mean anything though
-		if (!self->write_buffer.len)
-			lua_connection_discard (self);
-	}
-	return 0;
-}
-
-static int
-lua_connection_gc (lua_State *L)
-{
-	lua_connection_discard (luaL_checkudata (L, 1, XLUA_CONNECTION_METATABLE));
-	return 0;
-}
-
-static luaL_Reg lua_connection_table[] =
-{
-	{ "send",  lua_connection_send  },
-	{ "close", lua_connection_close },
-	{ "__gc",  lua_connection_gc    },
-	{ NULL,    NULL                 }
-};
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static int
-lua_connection_check_fn (lua_State *L)
-{
-	lua_plugin_check_field (L, 1, luaL_checkstring (L, 2), LUA_TFUNCTION, true);
-	return 1;
-}
-
-// We need to run it in a protected environment because of lua_getfield()
-static bool
-lua_connection_cb_lookup (struct lua_connection *self, const char *name,
-	struct error **e)
-{
-	lua_State *L = self->plugin->L;
-	lua_pushcfunction (L, lua_connection_check_fn);
-	hard_assert (lua_cache_get (L, self));
-	lua_pushstring (L, name);
-	return lua_plugin_call (self->plugin, 2, 1, e);
-}
-
-// Ideally lua_connection_cb_lookup() would return a ternary value
-static bool
-lua_connection_eat_nil (struct lua_connection *self)
-{
-	if (lua_toboolean (self->plugin->L, -1))
-		return false;
-	lua_pop (self->plugin->L, 1);
-	return true;
-}
-
-static bool
-lua_connection_invoke_on_data (struct lua_connection *self, struct error **e)
-{
-	if (!lua_connection_cb_lookup (self, "on_data", e))
-		return false;
-	if (lua_connection_eat_nil (self))
-		return true;
-
-	lua_pushlstring (self->plugin->L,
-		self->read_buffer.str, self->read_buffer.len);
-	return lua_plugin_call (self->plugin, 1, 0, e);
-}
-
-static bool
-lua_connection_invoke_on_eof (struct lua_connection *self, struct error **e)
-{
-	if (!lua_connection_cb_lookup (self, "on_eof", e))
-		return false;
-	if (lua_connection_eat_nil (self))
-		return true;
-	return lua_plugin_call (self->plugin, 0, 0, e);
-}
-
-static bool
-lua_connection_invoke_on_error (struct lua_connection *self,
-	const char *error, struct error **e)
-{
-	// XXX: not sure if ignoring errors after :close() is always desired;
-	//   code might want to make sure that data are transferred successfully
-	if (!self->closing
-	 && lua_connection_cb_lookup (self, "on_error", e)
-	 && !lua_connection_eat_nil (self))
-	{
-		lua_pushstring (self->plugin->L, error);
-		lua_plugin_call (self->plugin, 1, 0, e);
-	}
-	return false;
-}
-
-static bool
-lua_connection_try_read (struct lua_connection *self, struct error **e)
-{
-	// Avoid the read call when it's obviously not going to return any data
-	// and would only cause unwanted invocation of callbacks
-	if (self->closing || self->got_eof)
-		return true;
-
-	enum socket_io_result read_result =
-		socket_io_try_read (self->socket_fd, &self->read_buffer);
-	const char *error = strerror (errno);
-
-	// Dispatch any data that we got before an EOF or any error
-	if (self->read_buffer.len)
-	{
-		if (!lua_connection_invoke_on_data (self, e))
-			return false;
-		str_reset (&self->read_buffer);
-	}
-
-	if (read_result == SOCKET_IO_EOF)
-	{
-		if (!lua_connection_invoke_on_eof (self, e))
-			return false;
-		self->got_eof = true;
-	}
-	if (read_result == SOCKET_IO_ERROR)
-		return lua_connection_invoke_on_error (self, error, e);
-	return true;
-}
-
-static bool
-lua_connection_try_write (struct lua_connection *self, struct error **e)
-{
-	enum socket_io_result write_result =
-		socket_io_try_write (self->socket_fd, &self->write_buffer);
-	const char *error = strerror (errno);
-
-	if (write_result == SOCKET_IO_ERROR)
-		return lua_connection_invoke_on_error (self, error, e);
-	return !self->closing || self->write_buffer.len;
-}
-
-static void
-lua_connection_on_ready (const struct pollfd *pfd, struct lua_connection *self)
-{
-	(void) pfd;
-
-	// Hold a reference so that it doesn't get collected on close()
-	hard_assert (lua_cache_get (self->plugin->L, self));
-
-	struct error *e = NULL;
-	bool keep = lua_connection_try_read (self, &e)
-		&& lua_connection_try_write (self, &e);
-	if (e)
-		lua_plugin_log_error (self->plugin, "network I/O", e);
-	if (keep)
-		lua_connection_update_poller (self);
-	else
-		lua_connection_discard (self);
-
-	lua_pop (self->plugin->L, 1);
-}
-
-static struct lua_connection *
-lua_plugin_push_connection (struct lua_plugin *plugin, int socket_fd)
-{
-	lua_State *L = plugin->L;
-
-	struct lua_connection *self = lua_newuserdata (L, sizeof *self);
-	luaL_setmetatable (L, XLUA_CONNECTION_METATABLE);
-	memset (self, 0, sizeof *self);
-	self->plugin = plugin;
-
-	set_blocking (socket_fd, false);
-	self->socket_event = poller_fd_make
-		(&plugin->ctx->poller, (self->socket_fd = socket_fd));
-	self->socket_event.dispatcher = (poller_fd_fn) lua_connection_on_ready;
-	self->socket_event.user_data = self;
-	poller_fd_set (&self->socket_event, POLLIN);
-
-	self->read_buffer = str_make ();
-	self->write_buffer = str_make ();
-
-	// Make sure the connection doesn't get garbage collected and return it
-	lua_cache_store (L, self, -1);
-	return self;
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-// The script can create as many wait channels as wanted.  They only actually
-// do anything once they get yielded to the main lua_resume() call.
-
-/// Identifier for the Lua metatable
-#define XLUA_WCHANNEL_METATABLE "wchannel"
-
-struct lua_wait_channel
-{
-	LIST_HEADER (struct lua_wait_channel)
-
-	struct lua_task *task;              ///< The task we're active in
-
-	/// Check if the event is ready and eventually push values to the thread;
-	/// the channel then may release any resources
-	bool (*check) (struct lua_wait_channel *self);
-
-	/// Release all resources held by the subclass
-	void (*cleanup) (struct lua_wait_channel *self);
-};
-
-static int
-lua_wchannel_gc (lua_State *L)
-{
-	struct lua_wait_channel *self =
-		luaL_checkudata (L, 1, XLUA_WCHANNEL_METATABLE);
-	if (self->cleanup)
-		self->cleanup (self);
-	return 0;
-}
-
-static luaL_Reg lua_wchannel_table[] =
-{
-	{ "__gc", lua_wchannel_gc },
-	{ NULL,   NULL            }
-};
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-// A task encapsulates a thread so that wait channels yielded from its main
-// function get waited upon by the event loop
-
-#define XLUA_TASK_METATABLE  "task"     ///< Identifier for the Lua metatable
-
-struct lua_task
-{
-	LIST_HEADER (struct lua_task)
-
-	struct lua_plugin *plugin;          ///< The plugin we belong to
-	lua_State *thread;                  ///< Lua thread
-	struct lua_wait_channel *active;    ///< Channels we're waiting on
-	struct poller_idle idle;            ///< Idle job
-};
-
-static void
-lua_task_unregister_channels (struct lua_task *self)
-{
-	LIST_FOR_EACH (struct lua_wait_channel, iter, self->active)
-	{
-		iter->task = NULL;
-		LIST_UNLINK (self->active, iter);
-		lua_cache_invalidate (self->plugin->L, iter);
-	}
-}
-
-static void
-lua_task_cancel_internal (struct lua_task *self)
-{
-	if (self->thread)
-	{
-		lua_cache_invalidate (self->plugin->L, self->thread);
-		self->thread = NULL;
-	}
-	lua_task_unregister_channels (self);
-	poller_idle_reset (&self->idle);
-
-	// The task no longer has to stay alive
-	lua_cache_invalidate (self->plugin->L, self);
-}
-
-static int
-lua_task_cancel (lua_State *L)
-{
-	struct lua_task *self = luaL_checkudata (L, 1, XLUA_TASK_METATABLE);
-	// We could also yield and make lua_task_resume() check "self->thread",
-	// however the main issue here is that the script should just return
-	luaL_argcheck (L, L != self->thread, 1,
-		"cannot cancel task from within itself");
-	lua_task_cancel_internal (self);
-	return 0;
-}
-
-#define lua_task_wakeup(self) poller_idle_set (&(self)->idle)
-
-static bool
-lua_task_schedule (struct lua_task *self, int n, struct error **e)
-{
-	lua_State *L = self->thread;
-	for (int i = -1; -i <= n; i--)
-	{
-		struct lua_wait_channel *channel =
-			luaL_testudata (L, i, XLUA_WCHANNEL_METATABLE);
-		if (!channel)
-			return error_set (e, "bad argument #%d to yield: %s", -i + n + 1,
-				"tasks can only yield wait channels");
-		if (channel->task)
-			return error_set (e, "bad argument #%d to yield: %s", -i + n + 1,
-				"wait channels can only be active in one task at most");
-	}
-	for (int i = -1; -i <= n; i--)
-	{
-		// Quietly ignore duplicate channels
-		struct lua_wait_channel *channel = lua_touserdata (L, i);
-		if (channel->task)
-			continue;
-
-		// By going in reverse the list ends up in the right order
-		channel->task = self;
-		LIST_PREPEND (self->active, channel);
-		lua_cache_store (self->plugin->L, channel, i);
-	}
-	lua_pop (L, n);
-
-	// There doesn't have to be a single channel
-	// We can also be waiting on a channel that is already ready
-	lua_task_wakeup (self);
-	return true;
-}
-
-static void
-lua_task_resume (struct lua_task *self, int index)
-{
-	lua_State *L = self->thread;
-	bool waiting_on_multiple = self->active && self->active->next;
-
-	// Since we've ended the wait, we don't need to hold on to them anymore
-	lua_task_unregister_channels (self);
-
-	// On the first run we also have the main function on the stack,
-	// before any initial arguments
-	int n = lua_gettop (L) - (lua_status (L) == LUA_OK);
-
-	// Pack the values in a table and prepend the index of the channel, so that
-	// the caller doesn't need to care about the number of return values
-	if (waiting_on_multiple)
-	{
-		lua_plugin_pack (L, n);
-		lua_pushinteger (L, index);
-		lua_insert (L, -2);
-		n = 2;
-	}
-
-#if LUA_VERSION_NUM >= 504
-	int nresults = 0;
-	int res = lua_resume (L, NULL, n, &nresults);
-#else
-	int res = lua_resume (L, NULL, n);
-	int nresults = lua_gettop (L);
-#endif
-
-	struct error *error = NULL;
-	if (res == LUA_YIELD)
-	{
-		// AFAIK we don't get any good error context information from here
-		if (lua_task_schedule (self, nresults, &error))
-			return;
-	}
-	// For simplicity ignore any results from successful returns
-	else if (res != LUA_OK)
-	{
-		luaL_traceback (L, L, lua_tostring (L, -1), 0 /* or 1? */);
-		lua_plugin_process_error (self->plugin, lua_tostring (L, -1), &error);
-		lua_pop (L, 2);
-	}
-	if (error)
-		lua_plugin_log_error (self->plugin, "task", error);
-	lua_task_cancel_internal (self);
-}
-
-static void
-lua_task_check (struct lua_task *self)
-{
-	poller_idle_reset (&self->idle);
-
-	lua_Integer i = 0;
-	LIST_FOR_EACH (struct lua_wait_channel, iter, self->active)
-	{
-		i++;
-		if (iter->check (iter))
-		{
-			lua_task_resume (self, i);
-			return;
-		}
-	}
-	if (!self->active)
-		lua_task_resume (self, i);
-}
-
-// The task dies either when it finishes, it is cancelled, or at plugin unload
-static luaL_Reg lua_task_table[] =
-{
-	{ "cancel", lua_task_cancel },
-	{ "__gc",   lua_task_cancel },
-	{ NULL,     NULL            }
-};
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-struct lua_wait_timer
-{
-	struct lua_wait_channel super;      ///< The structure we're deriving
-	struct poller_timer timer;          ///< Timer event
-	bool expired;                       ///< Whether the timer has expired
-};
-
-static bool
-lua_wait_timer_check (struct lua_wait_channel *wchannel)
-{
-	struct lua_wait_timer *self =
-		CONTAINER_OF (wchannel, struct lua_wait_timer, super);
-	return self->super.task && self->expired;
-}
-
-static void
-lua_wait_timer_cleanup (struct lua_wait_channel *wchannel)
-{
-	struct lua_wait_timer *self =
-		CONTAINER_OF (wchannel, struct lua_wait_timer, super);
-	poller_timer_reset (&self->timer);
-}
-
-static void
-lua_wait_timer_dispatch (struct lua_wait_timer *self)
-{
-	self->expired = true;
-	if (self->super.task)
-		lua_task_wakeup (self->super.task);
-}
-
-static int
-lua_plugin_push_wait_timer (struct lua_plugin *plugin, lua_State *L,
-	lua_Integer timeout)
-{
-	struct lua_wait_timer *self = lua_newuserdata (L, sizeof *self);
-	luaL_setmetatable (L, XLUA_WCHANNEL_METATABLE);
-	memset (self, 0, sizeof *self);
-
-	self->super.check = lua_wait_timer_check;
-	self->super.cleanup = lua_wait_timer_cleanup;
-
-	self->timer = poller_timer_make (&plugin->ctx->poller);
-	self->timer.dispatcher = (poller_timer_fn) lua_wait_timer_dispatch;
-	self->timer.user_data = self;
-
-	if (timeout)
-		poller_timer_set (&self->timer, timeout);
-	else
-		self->expired = true;
-	return 1;
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-struct lua_wait_dial
-{
-	struct lua_wait_channel super;      ///< The structure we're deriving
-
-	struct lua_plugin *plugin;          ///< The plugin we belong to
-	struct connector connector;         ///< Connector object
-	bool active;                        ///< Whether the connector is alive
-
-	struct lua_connection *connection;  ///< Established connection
-	char *hostname;                     ///< Target hostname
-	char *last_error;                   ///< Connecting error, if any
-};
-
-static bool
-lua_wait_dial_check (struct lua_wait_channel *wchannel)
-{
-	struct lua_wait_dial *self =
-		CONTAINER_OF (wchannel, struct lua_wait_dial, super);
-
-	lua_State *L = self->super.task->thread;
-	if (self->connection)
-	{
-		// FIXME: this way the connection may leak -- we pass the value to the
-		//   task manager on the stack and forget about it but still leave the
-		//   connection in the cache.  That is because right now, when Lua code
-		//   sets up callbacks in the connection object and returns, it might
-		//   get otherwise GC'd since nothing else keeps referencing it.
-		//   By rewriting lua_connection using async, tasks and wait channels
-		//   would hold a reference, allowing us to remove it from the cache.
-		lua_cache_get (L, self->connection);
-		lua_pushstring (L, self->hostname);
-		self->connection = NULL;
-	}
-	else if (self->last_error)
-	{
-		lua_pushnil (L);
-		lua_pushnil (L);
-		lua_pushstring (L, self->last_error);
-	}
-	else
-		return false;
-	return true;
-}
-
-static void
-lua_wait_dial_cancel (struct lua_wait_dial *self)
-{
-	if (self->active)
-	{
-		connector_free (&self->connector);
-		self->active = false;
-	}
-}
-
-static void
-lua_wait_dial_cleanup (struct lua_wait_channel *wchannel)
-{
-	struct lua_wait_dial *self =
-		CONTAINER_OF (wchannel, struct lua_wait_dial, super);
-
-	lua_wait_dial_cancel (self);
-	if (self->connection)
-		lua_connection_discard (self->connection);
-
-	free (self->hostname);
-	free (self->last_error);
-}
-
-static void
-lua_wait_dial_on_connected (void *user_data, int socket, const char *hostname)
-{
-	struct lua_wait_dial *self = user_data;
-	if (self->super.task)
-		lua_task_wakeup (self->super.task);
-
-	self->connection = lua_plugin_push_connection (self->plugin, socket);
-	// TODO: use the hostname for SNI once TLS is implemented
-	self->hostname = xstrdup (hostname);
-	lua_wait_dial_cancel (self);
-}
-
-static void
-lua_wait_dial_on_failure (void *user_data)
-{
-	struct lua_wait_dial *self = user_data;
-	if (self->super.task)
-		lua_task_wakeup (self->super.task);
-	lua_wait_dial_cancel (self);
-}
-
-static void
-lua_wait_dial_on_error (void *user_data, const char *error)
-{
-	struct lua_wait_dial *self = user_data;
-	cstr_set (&self->last_error, xstrdup (error));
-}
-
-static int
-lua_plugin_push_wait_dial (struct lua_plugin *plugin, lua_State *L,
-	const char *host, const char *service)
-{
-	struct lua_wait_dial *self = lua_newuserdata (L, sizeof *self);
-	luaL_setmetatable (L, XLUA_WCHANNEL_METATABLE);
-	memset (self, 0, sizeof *self);
-
-	self->super.check = lua_wait_dial_check;
-	self->super.cleanup = lua_wait_dial_cleanup;
-
-	struct connector *connector = &self->connector;
-	connector_init (connector, &plugin->ctx->poller);
-	connector_add_target (connector, host, service);
-
-	connector->on_connected  = lua_wait_dial_on_connected;
-	connector->on_connecting = NULL;
-	connector->on_error      = lua_wait_dial_on_error;
-	connector->on_failure    = lua_wait_dial_on_failure;
-	connector->user_data     = self;
-
-	self->plugin = plugin;
-	self->active = true;
-	return 1;
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static int
-lua_async_go (lua_State *L)
-{
-	struct lua_plugin *plugin = lua_touserdata (L, lua_upvalueindex (1));
-	luaL_checktype (L, 1, LUA_TFUNCTION);
-
-	lua_State *thread = lua_newthread (L);
-	lua_cache_store (L, thread, -1);
-	lua_pop (L, 1);
-
-	// Move the main function w/ arguments to the thread
-	lua_xmove (L, thread, lua_gettop (L));
-
-	struct lua_task *task = lua_newuserdata (L, sizeof *task);
-	luaL_setmetatable (L, XLUA_TASK_METATABLE);
-	memset (task, 0, sizeof *task);
-	task->plugin = plugin;
-	task->thread = thread;
-
-	task->idle = poller_idle_make (&plugin->ctx->poller);
-	task->idle.dispatcher = (poller_idle_fn) lua_task_check;
-	task->idle.user_data = task;
-	poller_idle_set (&task->idle);
-
-	// Make sure the task doesn't get garbage collected and return it
-	lua_cache_store (L, task, -1);
-	return 1;
-}
-
-static int
-lua_async_timer_ms (lua_State *L)
-{
-	struct lua_plugin *plugin = lua_touserdata (L, lua_upvalueindex (1));
-	lua_Integer timeout = luaL_checkinteger (L, 1);
-	if (timeout < 0)
-		luaL_argerror (L, 1, "timeout mustn't be negative");
-	return lua_plugin_push_wait_timer (plugin, L, timeout);
-}
-
-static int
-lua_async_dial (lua_State *L)
-{
-	struct lua_plugin *plugin = lua_touserdata (L, lua_upvalueindex (1));
-	return lua_plugin_push_wait_dial (plugin, L,
-		luaL_checkstring (L, 1), luaL_checkstring (L, 2));
-}
-
-static luaL_Reg lua_async_library[] =
-{
-	{ "go",       lua_async_go       },
-	{ "timer_ms", lua_async_timer_ms },
-	{ "dial",     lua_async_dial     },
-	{ NULL,       NULL               },
-};
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static int
-lua_plugin_get_screen_size (lua_State *L)
-{
-	lua_pushinteger (L, g_terminal.lines);
-	lua_pushinteger (L, g_terminal.columns);
-	return 2;
-}
-
-static int
-lua_ctx_gc (lua_State *L)
-{
-	return lua_weak_gc (L, &lua_ctx_info);
-}
-
-static luaL_Reg lua_plugin_library[] =
-{
-	// These are global functions:
-
-	{ "parse",           lua_plugin_parse           },
-	{ "hook_input",      lua_plugin_hook_input      },
-	{ "hook_irc",        lua_plugin_hook_irc        },
-	{ "hook_prompt",     lua_plugin_hook_prompt     },
-	{ "hook_completion", lua_plugin_hook_completion },
-	{ "setup_config",    lua_plugin_setup_config    },
-
-	// And these are methods:
-
-	{ "get_screen_size", lua_plugin_get_screen_size },
-	{ "__gc",            lua_ctx_gc                 },
-	{ NULL,              NULL                       },
-};
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void *
-lua_plugin_alloc (void *ud, void *ptr, size_t o_size, size_t n_size)
-{
-	(void) ud;
-	(void) o_size;
-
-	if (n_size)
-		return realloc (ptr, n_size);
-
-	free (ptr);
-	return NULL;
-}
-
-static int
-lua_plugin_panic (lua_State *L)
-{
-	// XXX: we might be able to do something better
-	print_fatal ("Lua panicked: %s", lua_tostring (L, -1));
-	lua_close (L);
-	exit (EXIT_FAILURE);
-	return 0;
-}
-
-static void
-lua_plugin_push_ref (lua_State *L, struct lua_plugin *self, void *object,
-	struct ispect_field *field)
-{
-	// We create a mapping on object type registration
-	hard_assert (lua_rawgetp (L, LUA_REGISTRYINDEX, field->fields));
-	struct lua_weak_info *info = lua_touserdata (L, -1);
-	lua_pop (L, 1);
-
-	if (!field->is_list)
-	{
-		lua_weak_push (L, self, object, info);
-		return;
-	}
-
-	// As a rule in this codebase, these fields are right at the top of structs
-	struct list_header { LIST_HEADER (void) };
-
-	int i = 1;
-	lua_newtable (L);
-	LIST_FOR_EACH (struct list_header, iter, object)
-	{
-		lua_weak_push (L, self, iter, info);
-		lua_rawseti (L, -2, i++);
-	}
-}
-
-static void lua_plugin_push_map_field (lua_State *L, struct lua_plugin *self,
-	const char *key, void *p, struct ispect_field *field);
-
-static void
-lua_plugin_push_struct (lua_State *L, struct lua_plugin *self,
-	enum ispect_type type, void *value, struct ispect_field *field)
-{
-	if (type == ISPECT_STR)
-	{
-		const struct str *s = value;
-		lua_pushlstring (L, s->str, s->len);
-		return;
-	}
-	if (type == ISPECT_STR_MAP)
-	{
-		struct str_map_iter iter = str_map_iter_make (value);
-
-		void *value;
-		lua_newtable (L);
-		while ((value = str_map_iter_next (&iter)))
-			lua_plugin_push_map_field (L, self, iter.link->key, value, field);
-		return;
-	}
-	hard_assert (!"unhandled introspection object type");
-}
-
-static void
-lua_plugin_push_map_field (lua_State *L, struct lua_plugin *self,
-	const char *key, void *p, struct ispect_field *field)
-{
-	// That would mean maps in maps ad infinitum
-	hard_assert (field->subtype != ISPECT_STR_MAP);
-
-	intptr_t n = (intptr_t) p;
-	switch (field->subtype)
-	{
-	// Here the types are generally casted to a void pointer
-	case ISPECT_BOOL:   lua_pushboolean (L, (bool     ) n); break;
-	case ISPECT_INT:    lua_pushinteger (L, (int      ) n); break;
-	case ISPECT_UINT:   lua_pushinteger (L, (unsigned ) n); break;
-	case ISPECT_SIZE:   lua_pushinteger (L, (size_t   ) n); break;
-	case ISPECT_STRING: lua_pushstring  (L,             p); break;
-	case ISPECT_REF: lua_plugin_push_ref (L, self, p, field); break;
-	default: lua_plugin_push_struct (L, self, field->subtype, p, field);
-	}
-	lua_setfield (L, -2, key);
-}
-
-static bool
-lua_plugin_property_get_ispect (lua_State *L, const char *property_name)
-{
-	struct lua_weak_info *info = lua_touserdata (L, lua_upvalueindex (1));
-	if (!info || !info->ispect)
-		return false;
-
-	struct lua_weak *weak = luaL_checkudata (L, 1, info->name);
-	// TODO: I think we can do better than this, maybe binary search at least?
-	struct ispect_field *field;
-	for (field = info->ispect; field->name; field++)
-		if (!strcmp (property_name, field->name))
-			break;
-	if (!field->name)
-		return false;
-
-	struct lua_plugin *self = weak->plugin;
-	void *p = (uint8_t *) weak->object + field->offset;
-	switch (field->type)
-	{
-	// Here the types are really what's under the pointer
-	case ISPECT_BOOL:   lua_pushboolean (L, *(bool     *) p); break;
-	case ISPECT_INT:    lua_pushinteger (L, *(int      *) p); break;
-	case ISPECT_UINT:   lua_pushinteger (L, *(unsigned *) p); break;
-	case ISPECT_SIZE:   lua_pushinteger (L, *(size_t   *) p); break;
-	case ISPECT_STRING: lua_pushstring  (L, *(char    **) p); break;
-	case ISPECT_REF: lua_plugin_push_ref (L, self, *(void **) p, field); break;
-	default: lua_plugin_push_struct (L, self, field->type, p, field);
-	}
-	return true;
-}
-
-static int
-lua_plugin_property_get (lua_State *L)
-{
-	luaL_checktype (L, 1, LUA_TUSERDATA);
-	const char *property_name = luaL_checkstring (L, 2);
-
-	// Either it's directly present in the metatable
-	if (luaL_getmetafield (L, 1, property_name))
-		return 1;
-
-	// Or we try to find and eventually call a getter method
-	char *getter_name = xstrdup_printf ("get_%s", property_name);
-	bool found = luaL_getmetafield (L, 1, getter_name);
-	free (getter_name);
-
-	if (found)
-	{
-		lua_pushvalue (L, 1);
-		lua_call (L, 1, 1);
-		return 1;
-	}
-
-	// Maybe we can find it via introspection
-	if (lua_plugin_property_get_ispect (L, property_name))
-		return 1;
-
-	// Or we look for a property set by the user (__gc cannot be overriden)
-	if (lua_getuservalue (L, 1) != LUA_TTABLE)
-		lua_pushnil (L);
-	else
-		lua_getfield (L, -1, property_name);
-	return 1;
-}
-
-static int
-lua_plugin_property_set (lua_State *L)
-{
-	luaL_checktype (L, 1, LUA_TUSERDATA);
-	const char *property_name = luaL_checkstring (L, 2);
-	luaL_checkany (L, 3);
-
-	// We use the associated value to store user-defined properties
-	int type = lua_getuservalue (L, 1);
-	if (type == LUA_TNIL)
-	{
-		lua_pop (L, 1);
-		lua_newtable (L);
-		lua_pushvalue (L, -1);
-		lua_setuservalue (L, 1);
-	}
-	else if (type != LUA_TTABLE)
-		return luaL_error (L, "associated value is not a table");
-
-	// Beware that we do not check for conflicts here;
-	// if Lua code writes a conflicting field, it is effectively ignored
-	lua_pushvalue (L, 3);
-	lua_setfield (L, -2, property_name);
-	return 0;
-}
-
-static void
-lua_plugin_add_accessors (lua_State *L, struct lua_weak_info *info)
-{
-	// Emulate properties for convenience
-	lua_pushlightuserdata (L, info);
-	lua_pushcclosure (L, lua_plugin_property_get, 1);
-	lua_setfield (L, -2, "__index");
-	lua_pushcfunction (L, lua_plugin_property_set);
-	lua_setfield (L, -2, "__newindex");
-}
-
-static void
-lua_plugin_reg_meta (lua_State *L, const char *name, luaL_Reg *fns)
-{
-	luaL_newmetatable (L, name);
-	luaL_setfuncs (L, fns, 0);
-	lua_plugin_add_accessors (L, NULL);
-	lua_pop (L, 1);
-}
-
-static void
-lua_plugin_reg_weak (lua_State *L, struct lua_weak_info *info, luaL_Reg *fns)
-{
-	// Create a mapping from the object type (info->ispect) back to metadata
-	// so that we can figure out what to create from ISPECT_REF fields
-	lua_pushlightuserdata (L, info);
-	lua_rawsetp (L, LUA_REGISTRYINDEX, info->ispect);
-
-	luaL_newmetatable (L, info->name);
-	luaL_setfuncs (L, fns, 0);
-	lua_plugin_add_accessors (L, info);
-	lua_pop (L, 1);
-}
-
-static struct plugin *
-lua_plugin_load (struct app_context *ctx, const char *filename,
-	struct error **e)
-{
-	lua_State *L = lua_newstate (lua_plugin_alloc, NULL);
-	if (!L)
-	{
-		error_set (e, "Lua initialization failed");
-		return NULL;
-	}
-
-	lua_atpanic (L, lua_plugin_panic);
-	luaL_openlibs (L);
-
-	struct lua_plugin *plugin = xcalloc (1, sizeof *plugin);
-	plugin->super.name = xstrdup (filename);
-	plugin->super.vtable = &lua_plugin_vtable;
-	plugin->ctx = ctx;
-	plugin->L = L;
-
-	luaL_checkversion (L);
-
-	// Register the degesch library as a singleton with "plugin" as an upvalue
-	// (mostly historical, but rather convenient)
-	luaL_newmetatable (L, lua_ctx_info.name);
-	lua_pushlightuserdata (L, plugin);
-	luaL_setfuncs (L, lua_plugin_library, 1);
-	lua_plugin_add_accessors (L, &lua_ctx_info);
-
-	// Add the asynchronous library underneath
-	lua_newtable (L);
-	lua_pushlightuserdata (L, plugin);
-	luaL_setfuncs (L, lua_async_library, 1);
-	lua_setfield (L, -2, "async");
-	lua_pop (L, 1);
-
-	lua_weak_push (L, plugin, ctx, &lua_ctx_info);
-	lua_setglobal (L, lua_ctx_info.name);
-
-	// Create metatables for our objects
-	lua_plugin_reg_meta (L, XLUA_HOOK_METATABLE,       lua_hook_table);
-	lua_plugin_reg_weak (L, &lua_user_info,            lua_user_table);
-	lua_plugin_reg_weak (L, &lua_channel_info,         lua_channel_table);
-	lua_plugin_reg_weak (L, &lua_buffer_info,          lua_buffer_table);
-	lua_plugin_reg_weak (L, &lua_server_info,          lua_server_table);
-	lua_plugin_reg_meta (L, XLUA_SCHEMA_METATABLE,     lua_schema_table);
-	lua_plugin_reg_meta (L, XLUA_CONNECTION_METATABLE, lua_connection_table);
-
-	lua_plugin_reg_meta (L, XLUA_TASK_METATABLE,       lua_task_table);
-	lua_plugin_reg_meta (L, XLUA_WCHANNEL_METATABLE,   lua_wchannel_table);
-
-	struct error *error = NULL;
-	if (luaL_loadfile (L, filename))
-		error_set (e, "%s: %s", "Lua", lua_tostring (L, -1));
-	else if (!lua_plugin_call (plugin, 0, 0, &error))
-	{
-		error_set (e, "%s: %s", "Lua", error->message);
-		error_free (error);
-	}
-	else
-		return &plugin->super;
-
-	plugin_destroy (&plugin->super);
-	return NULL;
-}
-
-#endif // HAVE_LUA
-
-// --- Plugins -----------------------------------------------------------------
-
-typedef struct plugin *(*plugin_load_fn)
-	(struct app_context *ctx, const char *filename, struct error **e);
-
-// We can potentially add support for other scripting languages if so desired,
-// however this possibility is just a byproduct of abstraction
-static plugin_load_fn g_plugin_loaders[] =
-{
-#ifdef HAVE_LUA
-	lua_plugin_load,
-#endif // HAVE_LUA
-};
-
-static struct plugin *
-plugin_load_from_filename (struct app_context *ctx, const char *filename,
-	struct error **e)
-{
-	struct plugin *plugin = NULL;
-	struct error *error = NULL;
-	for (size_t i = 0; i < N_ELEMENTS (g_plugin_loaders); i++)
-		if ((plugin = g_plugin_loaders[i](ctx, filename, &error)) || error)
-			break;
-
-	if (error)
-		error_propagate (e, error);
-	else if (!plugin)
-	{
-		error_set (e, "no plugin handler for \"%s\"", filename);
-		return NULL;
-	}
-	return plugin;
-}
-
-static struct plugin *
-plugin_find (struct app_context *ctx, const char *name)
-{
-	LIST_FOR_EACH (struct plugin, iter, ctx->plugins)
-		if (!strcmp (name, iter->name))
-			return iter;
-	return NULL;
-}
-
-static char *
-plugin_resolve_relative_filename (const char *filename)
-{
-	struct strv paths = strv_make ();
-	get_xdg_data_dirs (&paths);
-	char *result = resolve_relative_filename_generic
-		(&paths, PROGRAM_NAME "/plugins/", filename);
-	strv_free (&paths);
-	return result;
-}
-
-static struct plugin *
-plugin_load_by_name (struct app_context *ctx, const char *name,
-	struct error **e)
-{
-	struct plugin *plugin = plugin_find (ctx, name);
-	if (plugin)
-	{
-		error_set (e, "plugin already loaded");
-		return NULL;
-	}
-
-	// As a side effect, a plugin can be loaded multiple times by giving
-	// various relative or non-relative paths to the function; this is not
-	// supposed to be fool-proof though, that requires other mechanisms
-	char *filename = resolve_filename (name, plugin_resolve_relative_filename);
-	if (!filename)
-	{
-		error_set (e, "file not found");
-		return NULL;
-	}
-
-	plugin = plugin_load_from_filename (ctx, filename, e);
-	free (filename);
-	return plugin;
-}
-
-static void
-plugin_load (struct app_context *ctx, const char *name)
-{
-	struct error *e = NULL;
-	struct plugin *plugin = plugin_load_by_name (ctx, name, &e);
-	if (plugin)
-	{
-		// FIXME: this way the real name isn't available to the plugin on load,
-		//   which has effect on e.g. plugin_config_name()
-		cstr_set (&plugin->name, xstrdup (name));
-
-		log_global_status (ctx, "Plugin \"#s\" loaded", name);
-		LIST_PREPEND (ctx->plugins, plugin);
-	}
-	else
-	{
-		log_global_error (ctx, "Can't load plugin \"#s\": #s",
-			name, e->message);
-		error_free (e);
-	}
-}
-
-static void
-plugin_unload (struct app_context *ctx, const char *name)
-{
-	struct plugin *plugin = plugin_find (ctx, name);
-	if (!plugin)
-		log_global_error (ctx, "Can't unload plugin \"#s\": #s",
-			name, "plugin not loaded");
-	else
-	{
-		log_global_status (ctx, "Plugin \"#s\" unloaded", name);
-		LIST_UNLINK (ctx->plugins, plugin);
-		plugin_destroy (plugin);
-	}
-}
-
-static void
-load_plugins (struct app_context *ctx)
-{
-	const char *plugins = get_config_string
-		(ctx->config.root, "behaviour.plugin_autoload");
-	if (plugins)
-	{
-		struct strv v = strv_make ();
-		cstr_split (plugins, ",", true, &v);
-		for (size_t i = 0; i < v.len; i++)
-			plugin_load (ctx, v.vector[i]);
-		strv_free (&v);
-	}
-}
-
-// --- User input handling -----------------------------------------------------
-
-// HANDLER_NEEDS_REG is primarily for message sending commands,
-// as they may want to log buffer lines and use our current nickname
-
-enum handler_flags
-{
-	HANDLER_SERVER        = (1 << 0),   ///< Server context required
-	HANDLER_NEEDS_REG     = (1 << 1),   ///< Server registration required
-	HANDLER_CHANNEL_FIRST = (1 << 2),   ///< Channel required, first argument
-	HANDLER_CHANNEL_LAST  = (1 << 3)    ///< Channel required, last argument
-};
-
-struct handler_args
-{
-	struct app_context *ctx;            ///< Application context
-	struct buffer *buffer;              ///< Current buffer
-	struct server *s;                   ///< Related server
-	const char *channel_name;           ///< Related channel name
-	char *arguments;                    ///< Command arguments
-};
-
-/// Cuts the longest non-whitespace portion of text and advances the pointer
-static char *
-cut_word (char **s)
-{
-	char *start = *s;
-	size_t word_len = strcspn (*s, WORD_BREAKING_CHARS);
-	char *end = start + word_len;
-	*s = end + strspn (end, WORD_BREAKING_CHARS);
-	*end = '\0';
-	return start;
-}
-
-/// Validates a word to be cut from a string
-typedef bool (*word_validator_fn) (void *, char *);
-
-static char *
-maybe_cut_word (char **s, word_validator_fn validator, void *user_data)
-{
-	char *start = *s;
-	size_t word_len = strcspn (*s, WORD_BREAKING_CHARS);
-
-	char *word = xstrndup (start, word_len);
-	bool ok = validator (user_data, word);
-	free (word);
-
-	if (!ok)
-		return NULL;
-
-	char *end = start + word_len;
-	*s = end + strspn (end, WORD_BREAKING_CHARS);
-	*end = '\0';
-	return start;
-}
-
-static char *
-maybe_cut_word_from_end (char **s, word_validator_fn validator, void *user_data)
-{
-	// Find the start and end of the last word
-	// Contrary to maybe_cut_word(), we ignore all whitespace at the end
-	char *start = *s, *end = start + strlen (start);
-	while (end  > start &&  strchr (WORD_BREAKING_CHARS, end [-1]))
-		end--;
-	char *word = end;
-	while (word > start && !strchr (WORD_BREAKING_CHARS, word[-1]))
-		word--;
-
-	// There's just one word at maximum, starting at the beginning
-	if (word == start)
-		return maybe_cut_word (s, validator, user_data);
-
-	char *tmp = xstrndup (word, word - start);
-	bool ok = validator (user_data, tmp);
-	free (tmp);
-
-	if (!ok)
-		return NULL;
-
-	// It doesn't start at the beginning, cut it off and return it
-	word[-1] = *end = '\0';
-	return word;
-}
-
-static bool
-validate_channel_name (void *user_data, char *word)
-{
-	return irc_is_channel (user_data, word);
-}
-
-static char *
-try_get_channel (struct handler_args *a,
-	char *(*cutter) (char **, word_validator_fn, void *))
-{
-	char *channel_name = cutter (&a->arguments, validate_channel_name, a->s);
-	if (channel_name)
-		return channel_name;
-	if (a->buffer->type == BUFFER_CHANNEL)
-		return a->buffer->channel->name;
-	return NULL;
-}
-
-static bool
-try_handle_buffer_goto (struct app_context *ctx, const char *word)
-{
-	unsigned long n;
-	if (!xstrtoul (&n, word, 10))
-		return false;
-
-	if (n > INT_MAX || !buffer_goto (ctx, n))
-		log_global_error (ctx, "#s: #s", "No such buffer", word);
-	return true;
-}
-
-static struct buffer *
-try_decode_buffer (struct app_context *ctx, const char *word)
-{
-	unsigned long n;
-	struct buffer *buffer = NULL;
-	if (xstrtoul (&n, word, 10) && n <= INT_MAX)
-		buffer = buffer_at_index (ctx, n);
-	if (buffer || (buffer = buffer_by_name (ctx, word)))
-		return buffer;
-
-	// Basic case insensitive partial matching -- at most one buffer can match
-	int n_matches = 0;
-	LIST_FOR_EACH (struct buffer, iter, ctx->buffers)
-	{
-		char *string  = xstrdup (iter->name);
-		char *pattern = xstrdup_printf ("*%s*", word);
-		for (char *p = string;  *p; p++) *p = tolower_ascii (*p);
-		for (char *p = pattern; *p; p++) *p = tolower_ascii (*p);
-		if (!fnmatch (pattern, string, 0))
-		{
-			n_matches++;
-			buffer = iter;
-		}
-		free (string);
-		free (pattern);
-	}
-	return n_matches == 1 ? buffer : NULL;
-}
-
-static void
-show_buffers_list (struct app_context *ctx)
-{
-	log_global_indent (ctx, "");
-	log_global_indent (ctx, "Buffers list:");
-
-	int i = 1;
-	LIST_FOR_EACH (struct buffer, iter, ctx->buffers)
-	{
-		struct str s = str_make ();
-		int new = iter->new_messages_count - iter->new_unimportant_count;
-		if (new && iter != ctx->current_buffer)
-			str_append_printf (&s, " (%d%s)", new, &"!"[!iter->highlighted]);
-		log_global_indent (ctx,
-			"  [#d] #s#&s", i++, iter->name, str_steal (&s));
-	}
-}
-
-static void
-part_channel (struct server *s, const char *channel_name, const char *reason)
-{
-	if (*reason)
-		irc_send (s, "PART %s :%s", channel_name, reason);
-	else
-		irc_send (s, "PART %s", channel_name);
-
-	struct channel *channel;
-	if ((channel = str_map_find (&s->irc_channels, channel_name)))
-		channel->left_manually = true;
-}
-
-static bool
-handle_buffer_goto (struct app_context *ctx, struct handler_args *a)
-{
-	if (!*a->arguments)
-		return false;
-
-	const char *which = cut_word (&a->arguments);
-	struct buffer *buffer = try_decode_buffer (ctx, which);
-	if (buffer)
-		buffer_activate (ctx, buffer);
-	else
-		log_global_error (ctx, "#s: #s", "No such buffer", which);
-	return true;
-}
-
-static void
-handle_buffer_close (struct app_context *ctx, struct handler_args *a)
-{
-	struct buffer *buffer = NULL;
-	const char *which = NULL;
-	if (!*a->arguments)
-		buffer = a->buffer;
-	else
-		buffer = try_decode_buffer (ctx, (which = cut_word (&a->arguments)));
-
-	if (!buffer)
-		log_global_error (ctx, "#s: #s", "No such buffer", which);
-	else if (buffer == ctx->global_buffer)
-		log_global_error (ctx, "Can't close the global buffer");
-	else if (buffer->type == BUFFER_SERVER)
-		log_global_error (ctx, "Can't close a server buffer");
-	else
-	{
-		// The user would be unable to recreate the buffer otherwise
-		if (buffer->type == BUFFER_CHANNEL
-		 && irc_channel_is_joined (buffer->channel))
-			part_channel (buffer->server, buffer->channel->name, "");
-		buffer_remove_safe (ctx, buffer);
-	}
-}
-
-static bool
-handle_buffer_move (struct app_context *ctx, struct handler_args *a)
-{
-	unsigned long request;
-	if (!xstrtoul (&request, a->arguments, 10))
-		return false;
-
-	if (request == 0 || request > (unsigned long) buffer_count (ctx))
-	{
-		log_global_error (ctx, "#s: #s",
-			"Can't move buffer", "requested position is out of range");
-		return true;
-	}
-	buffer_move (ctx, a->buffer, request);
-	return true;
-}
-
-static bool
-handle_command_buffer (struct handler_args *a)
-{
-	struct app_context *ctx = a->ctx;
-	char *action = cut_word (&a->arguments);
-	if (try_handle_buffer_goto (ctx, action))
-		return true;
-
-	bool result = true;
-	if (!*action || !strcasecmp_ascii (action, "list"))
-		show_buffers_list (ctx);
-	else if (!strcasecmp_ascii (action, "clear"))
-	{
-		buffer_clear (a->buffer);
-		buffer_print_backlog (ctx, a->buffer);
-	}
-	else if (!strcasecmp_ascii (action, "move"))
-		result = handle_buffer_move (ctx, a);
-	else if (!strcasecmp_ascii (action, "goto"))
-		result = handle_buffer_goto (ctx, a);
-	else if (!strcasecmp_ascii (action, "close"))
-		handle_buffer_close (ctx, a);
-	else
-		result = false;
-	return result;
-}
-
-static bool
-handle_command_set_add
-	(struct strv *items, const struct strv *values, struct error **e)
-{
-	for (size_t i = 0; i < values->len; i++)
-	{
-		const char *value = values->vector[i];
-		if (strv_find (items, values->vector[i]) != -1)
-			return error_set (e, "already present in the array: %s", value);
-		strv_append (items, value);
-	}
-	return true;
-}
-
-static bool
-handle_command_set_remove
-	(struct strv *items, const struct strv *values, struct error **e)
-{
-	for (size_t i = 0; i < values->len; i++)
-	{
-		const char *value = values->vector[i];
-		ssize_t i = strv_find (items, value);
-		if (i == -1)
-			return error_set (e, "not present in the array: %s", value);
-		strv_remove (items, i);
-	}
-	return true;
-}
-
-static bool
-handle_command_set_modify
-	(struct config_item *item, const char *value, bool add, struct error **e)
-{
-	struct strv items = strv_make ();
-	if (item->type != CONFIG_ITEM_NULL)
-		cstr_split (item->value.string.str, ",", false, &items);
-	if (items.len == 1 && !*items.vector[0])
-		strv_reset (&items);
-
-	struct strv values = strv_make ();
-	cstr_split (value, ",", false, &values);
-	bool result = add
-		? handle_command_set_add (&items, &values, e)
-		: handle_command_set_remove (&items, &values, e);
-
-	if (result)
-	{
-		char *changed = strv_join (&items, ",");
-		struct str tmp = { .str = changed, .len = strlen (changed) };
-		result = config_item_set_from (item,
-			config_item_string_array (&tmp), e);
-		free (changed);
-	}
-
-	strv_free (&items);
-	strv_free (&values);
-	return result;
-}
-
-static void
-handle_command_set_assign_item (struct app_context *ctx,
-	char *key, struct config_item *new_, bool add, bool remove)
-{
-	struct config_item *item =
-		config_item_get (ctx->config.root, key, NULL);
-	hard_assert (item);
-
-	struct error *e = NULL;
-	if (!item->schema)
-		error_set (&e, "option not recognized");
-	else if (!add && !remove)
-		config_item_set_from (item, config_item_clone (new_), &e);
-	else if (item->schema->type != CONFIG_ITEM_STRING_ARRAY)
-		error_set (&e, "not a string array");
-	else
-		handle_command_set_modify (item, new_->value.string.str, add, &e);
-
-	if (e)
-	{
-		log_global_error (ctx,
-			"Failed to set option \"#s\": #s", key, e->message);
-		error_free (e);
-	}
-	else
-	{
-		struct strv tmp = strv_make ();
-		dump_matching_options (ctx->config.root, key, &tmp);
-		log_global_status (ctx, "Option changed: #s", tmp.vector[0]);
-		strv_free (&tmp);
-	}
-}
-
-static bool
-handle_command_set_assign
-	(struct app_context *ctx, struct strv *all, char *arguments)
-{
-	char *op = cut_word (&arguments);
-	bool add = false;
-	bool remove = false;
-
-	if      (!strcmp (op, "+="))  add = true;
-	else if (!strcmp (op, "-="))  remove = true;
-	else if  (strcmp (op, "="))   return false;
-
-	if (!*arguments)
-		return false;
-
-	struct error *e = NULL;
-	struct config_item *new_ =
-		config_item_parse (arguments, strlen (arguments), true, &e);
-	if (e)
-	{
-		log_global_error (ctx, "Invalid value: #s", e->message);
-		error_free (e);
-		return true;
-	}
-
-	if ((add | remove) && !config_item_type_is_string (new_->type))
-	{
-		log_global_error (ctx, "+= / -= operators need a string argument");
-		config_item_destroy (new_);
-		return true;
-	}
-	for (size_t i = 0; i < all->len; i++)
-	{
-		char *key = cstr_cut_until (all->vector[i], " ");
-		handle_command_set_assign_item (ctx, key, new_, add, remove);
-		free (key);
-	}
-	config_item_destroy (new_);
-	return true;
-}
-
-static bool
-handle_command_set (struct handler_args *a)
-{
-	struct app_context *ctx = a->ctx;
-	char *option = "*";
-	if (*a->arguments)
-		option = cut_word (&a->arguments);
-
-	struct strv all = strv_make ();
-	dump_matching_options (ctx->config.root, option, &all);
-
-	bool result = true;
-	if (!all.len)
-		log_global_error (ctx, "No matches: #s", option);
-	else if (!*a->arguments)
-	{
-		log_global_indent (ctx, "");
-		for (size_t i = 0; i < all.len; i++)
-			log_global_indent (ctx, "#s", all.vector[i]);
-	}
-	else
-		result = handle_command_set_assign (ctx, &all, a->arguments);
-
-	strv_free (&all);
-	return result;
-}
-
-static bool
-handle_command_save (struct handler_args *a)
-{
-	if (*a->arguments)
-		return false;
-
-	save_configuration (a->ctx);
-	return true;
-}
-
-static void
-show_plugin_list (struct app_context *ctx)
-{
-	log_global_indent (ctx, "");
-	log_global_indent (ctx, "Plugins:");
-	LIST_FOR_EACH (struct plugin, iter, ctx->plugins)
-		log_global_indent (ctx, "  #s", iter->name);
-}
-
-static bool
-handle_command_plugin (struct handler_args *a)
-{
-	char *action = cut_word (&a->arguments);
-	if (!*action || !strcasecmp_ascii (action, "list"))
-		show_plugin_list (a->ctx);
-	else if (!strcasecmp_ascii (action, "load"))
-	{
-		if (!*a->arguments)
-			return false;
-
-		plugin_load (a->ctx, cut_word (&a->arguments));
-	}
-	else if (!strcasecmp_ascii (action, "unload"))
-	{
-		if (!*a->arguments)
-			return false;
-
-		plugin_unload (a->ctx, cut_word (&a->arguments));
-	}
-	else
-		return false;
-	return true;
-}
-
-static bool
-show_aliases_list (struct app_context *ctx)
-{
-	log_global_indent (ctx, "");
-	log_global_indent (ctx, "Aliases:");
-
-	struct str_map *aliases = get_aliases_config (ctx);
-	if (!aliases->len)
-	{
-		log_global_indent (ctx, "  (none)");
-		return true;
-	}
-
-	struct str_map_iter iter = str_map_iter_make (aliases);
-	struct config_item *alias;
-	while ((alias = str_map_iter_next (&iter)))
-	{
-		struct str definition = str_make ();
-		if (config_item_type_is_string (alias->type))
-			config_item_write_string (&definition, &alias->value.string);
-		else
-			str_append (&definition, "alias definition is not a string");
-		log_global_indent (ctx, "  /#s: #s", iter.link->key, definition.str);
-		str_free (&definition);
-	}
-	return true;
-}
-
-static bool
-handle_command_alias (struct handler_args *a)
-{
-	if (!*a->arguments)
-		return show_aliases_list (a->ctx);
-
-	// TODO: validate the name; maybe also while loading configuration
-	char *name = cut_word (&a->arguments);
-	if (!*a->arguments)
-		return false;
-
-	struct config_item *alias = config_item_string_from_cstr (a->arguments);
-
-	struct str definition = str_make ();
-	config_item_write_string (&definition, &alias->value.string);
-	str_map_set (get_aliases_config (a->ctx), name, alias);
-	log_global_status (a->ctx, "Created alias /#s: #s", name, definition.str);
-	str_free (&definition);
-	return true;
-}
-
-static bool
-handle_command_unalias (struct handler_args *a)
-{
-	if (!*a->arguments)
-		return false;
-
-	struct str_map *aliases = get_aliases_config (a->ctx);
-	while (*a->arguments)
-	{
-		char *name = cut_word (&a->arguments);
-		if (!str_map_find (aliases, name))
-			log_global_error (a->ctx, "No such alias: #s", name);
-		else
-		{
-			str_map_set (aliases, name, NULL);
-			log_global_status (a->ctx, "Alias removed: #s", name);
-		}
-	}
-	return true;
-}
-
-static bool
-handle_command_msg (struct handler_args *a)
-{
-	if (!*a->arguments)
-		return false;
-
-	char *target = cut_word (&a->arguments);
-	if (!*a->arguments)
-		log_server_error (a->s, a->s->buffer, "No text to send");
-	else
-		SEND_AUTOSPLIT_PRIVMSG (a->s, target, a->arguments);
-	return true;
-}
-
-static bool
-handle_command_query (struct handler_args *a)
-{
-	if (!*a->arguments)
-		return false;
-
-	char *target = cut_word (&a->arguments);
-	if (irc_is_channel (a->s, irc_skip_statusmsg (a->s, target)))
-		log_server_error (a->s, a->s->buffer, "Cannot query a channel");
-	else if (!*a->arguments)
-		buffer_activate (a->ctx, irc_get_or_make_user_buffer (a->s, target));
-	else
-	{
-		buffer_activate (a->ctx, irc_get_or_make_user_buffer (a->s, target));
-		SEND_AUTOSPLIT_PRIVMSG (a->s, target, a->arguments);
-	}
-	return true;
-}
-
-static bool
-handle_command_notice (struct handler_args *a)
-{
-	if (!*a->arguments)
-		return false;
-
-	char *target = cut_word (&a->arguments);
-	if (!*a->arguments)
-		log_server_error (a->s, a->s->buffer, "No text to send");
-	else
-		SEND_AUTOSPLIT_NOTICE (a->s, target, a->arguments);
-	return true;
-}
-
-static bool
-handle_command_squery (struct handler_args *a)
-{
-	if (!*a->arguments)
-		return false;
-
-	char *target = cut_word (&a->arguments);
-	if (!*a->arguments)
-		log_server_error (a->s, a->s->buffer, "No text to send");
-	else
-		irc_send (a->s, "SQUERY %s :%s", target, a->arguments);
-	return true;
-}
-
-static bool
-handle_command_ctcp (struct handler_args *a)
-{
-	if (!*a->arguments)
-		return false;
-
-	char *target = cut_word (&a->arguments);
-	if (!*a->arguments)
-		return false;
-
-	char *tag = cut_word (&a->arguments);
-	cstr_transform (tag, toupper_ascii);
-
-	if (*a->arguments)
-		irc_send (a->s, "PRIVMSG %s :\x01%s %s\x01", target, tag, a->arguments);
-	else
-		irc_send (a->s, "PRIVMSG %s :\x01%s\x01", target, tag);
-	return true;
-}
-
-static bool
-handle_command_me (struct handler_args *a)
-{
-	if (a->buffer->type == BUFFER_CHANNEL)
-		SEND_AUTOSPLIT_ACTION (a->s,
-			a->buffer->channel->name, a->arguments);
-	else if (a->buffer->type == BUFFER_PM)
-		SEND_AUTOSPLIT_ACTION (a->s,
-			a->buffer->user->nickname, a->arguments);
-	else
-		log_server_error (a->s, a->s->buffer,
-			"Can't do this from a server buffer (#s)",
-			"send CTCP actions");
-	return true;
-}
-
-static bool
-handle_command_quit (struct handler_args *a)
-{
-	request_quit (a->ctx, *a->arguments ? a->arguments : NULL);
-	return true;
-}
-
-static bool
-handle_command_join (struct handler_args *a)
-{
-	// XXX: send the last known channel key?
-	if (irc_is_channel (a->s, a->arguments))
-		// XXX: we may want to split the list of channels
-		irc_send (a->s, "JOIN %s", a->arguments);
-	else if (a->buffer->type != BUFFER_CHANNEL)
-		log_server_error (a->s, a->buffer, "#s: #s", "Can't join",
-			"no channel name given and this buffer is not a channel");
-	else if (irc_channel_is_joined (a->buffer->channel))
-		log_server_error (a->s, a->buffer, "#s: #s", "Can't join",
-			"you already are on the channel");
-	else if (*a->arguments)
-		irc_send (a->s, "JOIN %s :%s", a->buffer->channel->name, a->arguments);
-	else
-		irc_send (a->s, "JOIN %s", a->buffer->channel->name);
-	return true;
-}
-
-static bool
-handle_command_part (struct handler_args *a)
-{
-	if (irc_is_channel (a->s, a->arguments))
-	{
-		struct strv v = strv_make ();
-		cstr_split (cut_word (&a->arguments), ",", true, &v);
-		for (size_t i = 0; i < v.len; i++)
-			part_channel (a->s, v.vector[i], a->arguments);
-		strv_free (&v);
-	}
-	else if (a->buffer->type != BUFFER_CHANNEL)
-		log_server_error (a->s, a->buffer, "#s: #s", "Can't part",
-			"no channel name given and this buffer is not a channel");
-	else if (!irc_channel_is_joined (a->buffer->channel))
-		log_server_error (a->s, a->buffer, "#s: #s", "Can't part",
-			"you're not on the channel");
-	else
-		part_channel (a->s, a->buffer->channel->name, a->arguments);
-	return true;
-}
-
-static void
-cycle_channel (struct server *s, const char *channel_name, const char *reason)
-{
-	// If a channel key is set, we must specify it when rejoining
-	const char *key = NULL;
-	struct channel *channel;
-	if ((channel = str_map_find (&s->irc_channels, channel_name)))
-		key = str_map_find (&channel->param_modes, "k");
-
-	if (*reason)
-		irc_send (s, "PART %s :%s", channel_name, reason);
-	else
-		irc_send (s, "PART %s", channel_name);
-
-	if (key)
-		irc_send (s, "JOIN %s :%s", channel_name, key);
-	else
-		irc_send (s, "JOIN %s", channel_name);
-}
-
-static bool
-handle_command_cycle (struct handler_args *a)
-{
-	if (irc_is_channel (a->s, a->arguments))
-	{
-		struct strv v = strv_make ();
-		cstr_split (cut_word (&a->arguments), ",", true, &v);
-		for (size_t i = 0; i < v.len; i++)
-			cycle_channel (a->s, v.vector[i], a->arguments);
-		strv_free (&v);
-	}
-	else if (a->buffer->type != BUFFER_CHANNEL)
-		log_server_error (a->s, a->buffer, "#s: #s", "Can't cycle",
-			"no channel name given and this buffer is not a channel");
-	else if (!irc_channel_is_joined (a->buffer->channel))
-		log_server_error (a->s, a->buffer, "#s: #s", "Can't cycle",
-			"you're not on the channel");
-	else
-		cycle_channel (a->s, a->buffer->channel->name, a->arguments);
-	return true;
-}
-
-static bool
-handle_command_mode (struct handler_args *a)
-{
-	// Channel names prefixed by "+" collide with mode strings,
-	// so we just disallow specifying these channels
-	char *target = NULL;
-	if (strchr ("+-\0", *a->arguments))
-	{
-		if (a->buffer->type == BUFFER_CHANNEL)
-			target = a->buffer->channel->name;
-		if (a->buffer->type == BUFFER_PM)
-			target = a->buffer->user->nickname;
-		if (a->buffer->type == BUFFER_SERVER)
-			target = a->s->irc_user->nickname;
-	}
-	else
-		// If there a->arguments and they don't begin with a mode string,
-		// they're either a user name or a channel name
-		target = cut_word (&a->arguments);
-
-	if (!target)
-		log_server_error (a->s, a->buffer, "#s: #s", "Can't change mode",
-			"no target given and this buffer is neither a PM nor a channel");
-	else if (*a->arguments)
-		// XXX: split channel mode params as necessary using irc_max_modes?
-		irc_send (a->s, "MODE %s %s", target, a->arguments);
-	else
-		irc_send (a->s, "MODE %s", target);
-	return true;
-}
-
-static bool
-handle_command_topic (struct handler_args *a)
-{
-	if (*a->arguments)
-		// FIXME: there's no way to start the topic with whitespace
-		// FIXME: there's no way to unset the topic;
-		//   we could adopt the Tcl style of "-switches" with "--" sentinels,
-		//   or we could accept "strings" in the config format
-		irc_send (a->s, "TOPIC %s :%s", a->channel_name, a->arguments);
-	else
-		irc_send (a->s, "TOPIC %s", a->channel_name);
-	return true;
-}
-
-static bool
-handle_command_kick (struct handler_args *a)
-{
-	if (!*a->arguments)
-		return false;
-
-	char *target = cut_word (&a->arguments);
-	if (*a->arguments)
-		irc_send (a->s, "KICK %s %s :%s",
-			a->channel_name, target, a->arguments);
-	else
-		irc_send (a->s, "KICK %s %s", a->channel_name, target);
-	return true;
-}
-
-static bool
-handle_command_kickban (struct handler_args *a)
-{
-	if (!*a->arguments)
-		return false;
-
-	char *target = cut_word (&a->arguments);
-	if (strpbrk (target, "!@*?"))
-		return false;
-
-	// XXX: how about other masks?
-	irc_send (a->s, "MODE %s +b %s!*@*", a->channel_name, target);
-	if (*a->arguments)
-		irc_send (a->s, "KICK %s %s :%s",
-			a->channel_name, target, a->arguments);
-	else
-		irc_send (a->s, "KICK %s %s", a->channel_name, target);
-	return true;
-}
-
-static void
-mass_channel_mode (struct server *s, const char *channel_name,
-	bool adding, char mode_char, struct strv *v)
-{
-	size_t n;
-	for (size_t i = 0; i < v->len; i += n)
-	{
-		struct str modes  = str_make ();
-		struct str params = str_make ();
-
-		n = MIN (v->len - i, s->irc_max_modes);
-		str_append_printf (&modes, "MODE %s %c", channel_name, "-+"[adding]);
-		for (size_t k = 0; k < n; k++)
-		{
-			str_append_c (&modes, mode_char);
-			str_append_printf (&params, " %s", v->vector[i + k]);
-		}
-
-		irc_send (s, "%s%s", modes.str, params.str);
-
-		str_free (&modes);
-		str_free (&params);
-	}
-}
-
-static void
-mass_channel_mode_mask_list
-	(struct handler_args *a, bool adding, char mode_char)
-{
-	struct strv v = strv_make ();
-	cstr_split (a->arguments, " ", true, &v);
-
-	// XXX: this may be a bit too trivial; we could also map nicknames
-	//   to information from WHO polling or userhost-in-names
-	for (size_t i = 0; i < v.len; i++)
-	{
-		char *target = v.vector[i];
-		if (strpbrk (target, "!@*?") || irc_is_extban (a->s, target))
-			continue;
-
-		v.vector[i] = xstrdup_printf ("%s!*@*", target);
-		free (target);
-	}
-
-	mass_channel_mode (a->s, a->channel_name, adding, mode_char, &v);
-	strv_free (&v);
-}
-
-static bool
-handle_command_ban (struct handler_args *a)
-{
-	if (*a->arguments)
-		mass_channel_mode_mask_list (a, true, 'b');
-	else
-		irc_send (a->s, "MODE %s +b", a->channel_name);
-	return true;
-}
-
-static bool
-handle_command_unban (struct handler_args *a)
-{
-	if (*a->arguments)
-		mass_channel_mode_mask_list (a, false, 'b');
-	else
-		return false;
-	return true;
-}
-
-static bool
-handle_command_invite (struct handler_args *a)
-{
-	struct strv v = strv_make ();
-	cstr_split (a->arguments, " ", true, &v);
-
-	bool result = !!v.len;
-	for (size_t i = 0; i < v.len; i++)
-		irc_send (a->s, "INVITE %s %s", v.vector[i], a->channel_name);
-
-	strv_free (&v);
-	return result;
-}
-
-static struct server *
-resolve_server (struct app_context *ctx, struct handler_args *a,
-	const char *command_name)
-{
-	struct server *s = NULL;
-	if (*a->arguments)
-	{
-		char *server_name = cut_word (&a->arguments);
-		if (!(s = str_map_find (&ctx->servers, server_name)))
-			log_global_error (ctx, "/#s: #s: #s",
-				command_name, "no such server", server_name);
-	}
-	else if (a->buffer->type == BUFFER_GLOBAL)
-		log_global_error (ctx, "/#s: #s",
-			command_name, "no server name given and this buffer is global");
-	else
-		s = a->buffer->server;
-	return s;
-}
-
-static bool
-handle_command_connect (struct handler_args *a)
-{
-	struct server *s = NULL;
-	if (!(s = resolve_server (a->ctx, a, "connect")))
-		return true;
-
-	if (irc_is_connected (s))
-	{
-		log_server_error (s, s->buffer, "Already connected");
-		return true;
-	}
-	if (s->state == IRC_CONNECTING)
-		irc_destroy_connector (s);
-
-	irc_cancel_timers (s);
-
-	s->reconnect_attempt = 0;
-	irc_initiate_connect (s);
-	return true;
-}
-
-static bool
-handle_command_disconnect (struct handler_args *a)
-{
-	struct server *s = NULL;
-	if (!(s = resolve_server (a->ctx, a, "disconnect")))
-		return true;
-
-	if (s->state == IRC_CONNECTING)
-	{
-		log_server_status (s, s->buffer, "Connecting aborted");
-		irc_destroy_connector (s);
-	}
-	else if (poller_timer_is_active (&s->reconnect_tmr))
-	{
-		log_server_status (s, s->buffer, "Connecting aborted");
-		poller_timer_reset (&s->reconnect_tmr);
-	}
-	else if (!irc_is_connected (s))
-		log_server_error (s, s->buffer, "Not connected");
-	else
-		irc_initiate_disconnect (s, *a->arguments ? a->arguments : NULL);
-	return true;
-}
-
-static bool
-show_servers_list (struct app_context *ctx)
-{
-	log_global_indent (ctx, "");
-	log_global_indent (ctx, "Servers list:");
-
-	struct str_map_iter iter = str_map_iter_make (&ctx->servers);
-	struct server *s;
-	while ((s = str_map_iter_next (&iter)))
-		log_global_indent (ctx, "  #s", s->name);
-	return true;
-}
-
-static bool
-handle_server_add (struct handler_args *a)
-{
-	if (!*a->arguments)
-		return false;
-
-	struct app_context *ctx = a->ctx;
-	char *name = cut_word (&a->arguments);
-	const char *err;
-	if ((err = check_server_name_for_addition (ctx, name)))
-		log_global_error (ctx, "Cannot create server `#s': #s", name, err);
-	else
-	{
-		server_add_new (ctx, name);
-		log_global_status (ctx, "Server added: #s", name);
-	}
-	return true;
-}
-
-static bool
-handle_server_remove (struct handler_args *a)
-{
-	struct app_context *ctx = a->ctx;
-	struct server *s = NULL;
-	if (!(s = resolve_server (ctx, a, "server")))
-		return true;
-
-	if (irc_is_connected (s))
-		log_server_error (s, s->buffer, "Can't remove a connected server");
-	else
-	{
-		char *name = xstrdup (s->name);
-		server_remove (ctx, s);
-		log_global_status (ctx, "Server removed: #s", name);
-		free (name);
-	}
-	return true;
-}
-
-static bool
-handle_server_rename (struct handler_args *a)
-{
-	struct app_context *ctx = a->ctx;
-	if (!*a->arguments)
-		return false;
-	char *old_name = cut_word (&a->arguments);
-	if (!*a->arguments)
-		return false;
-	char *new_name = cut_word (&a->arguments);
-
-	struct server *s;
-	const char *err;
-	if (!(s = str_map_find (&ctx->servers, old_name)))
-		log_global_error (ctx, "/#s: #s: #s",
-			"server", "no such server", old_name);
-	else if ((err = check_server_name_for_addition (ctx, new_name)))
-		log_global_error (ctx,
-			"Cannot rename server to `#s': #s", new_name, err);
-	else
-	{
-		server_rename (ctx, s, new_name);
-		log_global_status (ctx, "Server renamed: #s to #s", old_name, new_name);
-	}
-	return true;
-}
-
-static bool
-handle_command_server (struct handler_args *a)
-{
-	if (!*a->arguments)
-		return show_servers_list (a->ctx);
-
-	char *action = cut_word (&a->arguments);
-	if (!strcasecmp_ascii (action, "list"))
-		return show_servers_list (a->ctx);
-	if (!strcasecmp_ascii (action, "add"))
-		return handle_server_add (a);
-	if (!strcasecmp_ascii (action, "remove"))
-		return handle_server_remove (a);
-	if (!strcasecmp_ascii (action, "rename"))
-		return handle_server_rename (a);
-	return false;
-}
-
-static bool
-handle_command_names (struct handler_args *a)
-{
-	char *channel_name = try_get_channel (a, maybe_cut_word);
-	if (channel_name)
-		irc_send (a->s, "NAMES %s", channel_name);
-	else
-		irc_send (a->s, "NAMES");
-	return true;
-}
-
-static bool
-handle_command_whois (struct handler_args *a)
-{
-	if (*a->arguments)
-		irc_send (a->s, "WHOIS %s", a->arguments);
-	else if (a->buffer->type == BUFFER_PM)
-		irc_send (a->s, "WHOIS %s", a->buffer->user->nickname);
-	else if (a->buffer->type == BUFFER_SERVER)
-		irc_send (a->s, "WHOIS %s", a->s->irc_user->nickname);
-	else
-		log_server_error (a->s, a->buffer, "#s: #s", "Can't request info",
-			"no target given and this buffer is neither a PM nor a server");
-	return true;
-}
-
-static bool
-handle_command_whowas (struct handler_args *a)
-{
-	if (*a->arguments)
-		irc_send (a->s, "WHOWAS %s", a->arguments);
-	else if (a->buffer->type == BUFFER_PM)
-		irc_send (a->s, "WHOWAS %s", a->buffer->user->nickname);
-	else
-		log_server_error (a->s, a->buffer, "#s: #s", "Can't request info",
-			"no target given and this buffer is not a PM");
-	return true;
-}
-
-static bool
-handle_command_kill (struct handler_args *a)
-{
-	if (!*a->arguments)
-		return false;
-
-	char *target = cut_word (&a->arguments);
-	if (*a->arguments)
-		irc_send (a->s, "KILL %s :%s", target, a->arguments);
-	else
-		irc_send (a->s, "KILL %s", target);
-	return true;
-}
-
-static bool
-handle_command_nick (struct handler_args *a)
-{
-	if (!*a->arguments)
-		return false;
-
-	irc_send (a->s, "NICK %s", cut_word (&a->arguments));
-	return true;
-}
-
-static bool
-handle_command_quote (struct handler_args *a)
-{
-	irc_send (a->s, "%s", a->arguments);
-	return true;
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static bool
-handle_command_channel_mode
-	(struct handler_args *a, bool adding, char mode_char)
-{
-	const char *targets = a->arguments;
-	if (!*targets)
-	{
-		if (adding)
-			return false;
-
-		targets = a->s->irc_user->nickname;
-	}
-
-	struct strv v = strv_make ();
-	cstr_split (targets, " ", true, &v);
-	mass_channel_mode (a->s, a->channel_name, adding, mode_char, &v);
-	strv_free (&v);
-	return true;
-}
-
-#define CHANMODE_HANDLER(name, adding, mode_char)                              \
-	static bool                                                                \
-	handle_command_ ## name (struct handler_args *a)                           \
-	{                                                                          \
-		return handle_command_channel_mode (a, (adding), (mode_char));         \
-	}
-
-CHANMODE_HANDLER (op,      true,  'o')  CHANMODE_HANDLER (deop,    false, 'o')
-CHANMODE_HANDLER (voice,   true,  'v')  CHANMODE_HANDLER (devoice, false, 'v')
-
-#define TRIVIAL_HANDLER(name, command)                                         \
-	static bool                                                                \
-	handle_command_ ## name (struct handler_args *a)                           \
-	{                                                                          \
-		if (*a->arguments)                                                     \
-			irc_send (a->s, command " %s", a->arguments);                      \
-		else                                                                   \
-			irc_send (a->s, command);                                          \
-		return true;                                                           \
-	}
-
-TRIVIAL_HANDLER (list,  "LIST")
-TRIVIAL_HANDLER (who,   "WHO")
-TRIVIAL_HANDLER (motd,  "MOTD")
-TRIVIAL_HANDLER (oper,  "OPER")
-TRIVIAL_HANDLER (stats, "STATS")
-TRIVIAL_HANDLER (away,  "AWAY")
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static bool handle_command_help (struct handler_args *);
-
-static struct command_handler
-{
-	const char *name;
-	const char *description;
-	const char *usage;
-	bool (*handler) (struct handler_args *a);
-	enum handler_flags flags;
-}
-g_command_handlers[] =
-{
-	{ "help",       "Show help",
-	  "[<command> | <option>]",
-	  handle_command_help,       0 },
-	{ "quit",       "Quit the program",
-	  "[<message>]",
-	  handle_command_quit,       0 },
-	{ "buffer",     "Manage buffers",
-	  "<N> | list | clear | move <N> | goto <N or name> | close [<N or name>]",
-	  handle_command_buffer,     0 },
-	{ "set",        "Manage configuration",
-	  "[<option>]",
-	  handle_command_set,        0 },
-	{ "save",       "Save configuration",
-	  NULL,
-	  handle_command_save,       0 },
-	{ "plugin",     "Manage plugins",
-	  "list | load <name> | unload <name>",
-	  handle_command_plugin,     0 },
-
-	{ "alias",      "List or set aliases",
-	  "[<name> <definition>]",
-	  handle_command_alias,      0 },
-	{ "unalias",    "Unset aliases",
-	  "<name>...",
-	  handle_command_unalias,    0 },
-
-	{ "msg",        "Send message to a nick or channel",
-	  "<target> <message>",
-	  handle_command_msg,        HANDLER_SERVER | HANDLER_NEEDS_REG },
-	{ "query",      "Send a private message to a nick",
-	  "<nick> <message>",
-	  handle_command_query,      HANDLER_SERVER | HANDLER_NEEDS_REG },
-	{ "notice",     "Send notice to a nick or channel",
-	  "<target> <message>",
-	  handle_command_notice,     HANDLER_SERVER | HANDLER_NEEDS_REG },
-	{ "squery",     "Send a message to a service",
-	  "<service> <message>",
-	  handle_command_squery,     HANDLER_SERVER | HANDLER_NEEDS_REG },
-	{ "ctcp",       "Send a CTCP query",
-	  "<target> <tag>",
-	  handle_command_ctcp,       HANDLER_SERVER | HANDLER_NEEDS_REG },
-	{ "me",         "Send a CTCP action",
-	  "<message>",
-	  handle_command_me,         HANDLER_SERVER | HANDLER_NEEDS_REG },
-
-	{ "join",       "Join channels",
-	  "[<channel>[,<channel>...]] [<key>[,<key>...]]",
-	  handle_command_join,       HANDLER_SERVER },
-	{ "part",       "Leave channels",
-	  "[<channel>[,<channel>...]] [<reason>]",
-	  handle_command_part,       HANDLER_SERVER },
-	{ "cycle",      "Rejoin channels",
-	  "[<channel>[,<channel>...]] [<reason>]",
-	  handle_command_cycle,      HANDLER_SERVER },
-
-	{ "op",         "Give channel operator status",
-	  "<nick>...",
-	  handle_command_op,         HANDLER_SERVER | HANDLER_CHANNEL_FIRST },
-	{ "deop",       "Remove channel operator status",
-	  "[<nick>...]",
-	  handle_command_deop,       HANDLER_SERVER | HANDLER_CHANNEL_FIRST },
-	{ "voice",      "Give voice",
-	  "<nick>...",
-	  handle_command_voice,      HANDLER_SERVER | HANDLER_CHANNEL_FIRST },
-	{ "devoice",    "Remove voice",
-	  "[<nick>...]",
-	  handle_command_devoice,    HANDLER_SERVER | HANDLER_CHANNEL_FIRST },
-
-	{ "mode",       "Change mode",
-	  "[<channel>] [<mode>...]",
-	  handle_command_mode,       HANDLER_SERVER },
-	{ "topic",      "Change topic",
-	  "[<channel>] [<topic>]",
-	  handle_command_topic,      HANDLER_SERVER | HANDLER_CHANNEL_FIRST },
-	{ "kick",       "Kick user from channel",
-	  "[<channel>] <user> [<reason>]",
-	  handle_command_kick,       HANDLER_SERVER | HANDLER_CHANNEL_FIRST },
-	{ "kickban",    "Kick and ban user from channel",
-	  "[<channel>] <user> [<reason>]",
-	  handle_command_kickban,    HANDLER_SERVER | HANDLER_CHANNEL_FIRST },
-	{ "ban",        "Ban user from channel",
-	  "[<channel>] [<mask>...]",
-	  handle_command_ban,        HANDLER_SERVER | HANDLER_CHANNEL_FIRST },
-	{ "unban",      "Unban user from channel",
-	  "[<channel>] <mask>...",
-	  handle_command_unban,      HANDLER_SERVER | HANDLER_CHANNEL_FIRST },
-	{ "invite",     "Invite user to channel",
-	  "<user>... [<channel>]",
-	  handle_command_invite,     HANDLER_SERVER | HANDLER_CHANNEL_LAST },
-
-	{ "server",     "Manage servers",
-	  "list | add <name> | remove <name> | rename <old> <new>",
-	  handle_command_server,     0 },
-	{ "connect",    "Connect to the server",
-	  "[<server>]",
-	  handle_command_connect,    0 },
-	{ "disconnect", "Disconnect from the server",
-	  "[<server> [<reason>]]",
-	  handle_command_disconnect, 0 },
-
-	{ "list",       "List channels and their topic",
-	  "[<channel>[,<channel>...]] [<target>]",
-	  handle_command_list,       HANDLER_SERVER },
-	{ "names",      "List users on channel",
-	  "[<channel>[,<channel>...]]",
-	  handle_command_names,      HANDLER_SERVER },
-	{ "who",        "List users",
-	  "[<mask> [o]]",
-	  handle_command_who,        HANDLER_SERVER },
-	{ "whois",      "Get user information",
-	  "[<target>] <mask>",
-	  handle_command_whois,      HANDLER_SERVER },
-	{ "whowas",     "Get user information",
-	  "<user> [<count> [<target>]]",
-	  handle_command_whowas,     HANDLER_SERVER },
-
-	{ "motd",       "Get the Message of The Day",
-	  "[<target>]",
-	  handle_command_motd,       HANDLER_SERVER },
-	{ "oper",       "Authenticate as an IRC operator",
-	  "<name> <password>",
-	  handle_command_oper,       HANDLER_SERVER },
-	{ "kill",       "Kick another user from the server",
-	  "<user> <comment>",
-	  handle_command_kill,       HANDLER_SERVER },
-	{ "stats",      "Query server statistics",
-	  "[<query> [<target>]]",
-	  handle_command_stats,      HANDLER_SERVER },
-	{ "away",       "Set away status",
-	  "[<text>]",
-	  handle_command_away,       HANDLER_SERVER },
-	{ "nick",       "Change current nick",
-	  "<nickname>",
-	  handle_command_nick,       HANDLER_SERVER },
-	{ "quote",      "Send a raw command to the server",
-	  "<command>",
-	  handle_command_quote,      HANDLER_SERVER },
-};
-
-static bool
-try_handle_command_help_option (struct app_context *ctx, const char *name)
-{
-	struct config_item *item =
-		config_item_get (ctx->config.root, name, NULL);
-	if (!item)
-		return false;
-
-	struct config_schema *schema = item->schema;
-	if (!schema)
-	{
-		log_global_error (ctx, "#s: #s", "Option not recognized", name);
-		return true;
-	}
-
-	log_global_indent (ctx, "");
-	log_global_indent (ctx, "Option \"#s\":", name);
-	log_global_indent (ctx, "  Description: #s",
-		schema->comment ? schema->comment : "(none)");
-	log_global_indent (ctx, "  Type: #s", config_item_type_name (schema->type));
-	log_global_indent (ctx, "  Default: #s",
-		schema->default_ ? schema->default_ : "null");
-
-	struct str tmp = str_make ();
-	config_item_write (item, false, &tmp);
-	log_global_indent (ctx, "  Current value: #s", tmp.str);
-	str_free (&tmp);
-	return true;
-}
-
-static bool
-show_command_list (struct app_context *ctx)
-{
-	log_global_indent (ctx, "");
-	log_global_indent (ctx, "Commands:");
-
-	int longest = 0;
-	for (size_t i = 0; i < N_ELEMENTS (g_command_handlers); i++)
-	{
-		int len = strlen (g_command_handlers[i].name);
-		longest = MAX (longest, len);
-	}
-	for (size_t i = 0; i < N_ELEMENTS (g_command_handlers); i++)
-	{
-		struct command_handler *handler = &g_command_handlers[i];
-		log_global_indent (ctx, "  #&s", xstrdup_printf
-			("%-*s  %s", longest, handler->name, handler->description));
-	}
-	return true;
-}
-
-static bool
-show_command_help (struct app_context *ctx, struct command_handler *handler)
-{
-	log_global_indent (ctx, "");
-	log_global_indent (ctx, "/#s: #s", handler->name, handler->description);
-	log_global_indent (ctx, "  Arguments: #s",
-		handler->usage ? handler->usage : "(none)");
-	return true;
-}
-
-static bool
-handle_command_help (struct handler_args *a)
-{
-	struct app_context *ctx = a->ctx;
-	if (!*a->arguments)
-		return show_command_list (ctx);
-
-	const char *word = cut_word (&a->arguments);
-
-	const char *command = word + (*word == '/');
-	for (size_t i = 0; i < N_ELEMENTS (g_command_handlers); i++)
-	{
-		struct command_handler *handler = &g_command_handlers[i];
-		if (!strcasecmp_ascii (command, handler->name))
-			return show_command_help (ctx, handler);
-	}
-
-	if (try_handle_command_help_option (ctx, word))
-		return true;
-
-	if (str_map_find (get_aliases_config (ctx), command))
-		log_global_status (ctx, "/#s is an alias", command);
-	else
-		log_global_error (ctx, "#s: #s", "No such command or option", word);
-	return true;
-}
-
-static void
-init_user_command_map (struct str_map *map)
-{
-	*map = str_map_make (NULL);
-	map->key_xfrm = tolower_ascii_strxfrm;
-
-	for (size_t i = 0; i < N_ELEMENTS (g_command_handlers); i++)
-	{
-		struct command_handler *handler = &g_command_handlers[i];
-		str_map_set (map, handler->name, handler);
-	}
-}
-
-static bool
-process_user_command (struct app_context *ctx, struct buffer *buffer,
-	const char *command_name, char *input)
-{
-	static bool initialized = false;
-	static struct str_map map;
-	if (!initialized)
-	{
-		init_user_command_map (&map);
-		initialized = true;
-	}
-
-	if (try_handle_buffer_goto (ctx, command_name))
-		return true;
-
-	struct handler_args args =
-	{
-		.ctx = ctx,
-		.buffer = buffer,
-		.arguments = input,
-	};
-
-	struct command_handler *handler;
-	if (!(handler = str_map_find (&map, command_name)))
-		return false;
-	hard_assert (handler->flags == 0 || (handler->flags & HANDLER_SERVER));
-
-	if ((handler->flags & HANDLER_SERVER)
-		&& args.buffer->type == BUFFER_GLOBAL)
-		log_global_error (ctx, "/#s: #s",
-			command_name, "can't do this from a global buffer");
-	else if ((handler->flags & HANDLER_SERVER)
-		&& !irc_is_connected ((args.s = args.buffer->server)))
-		log_server_error (args.s, args.s->buffer, "Not connected");
-	else if ((handler->flags & HANDLER_NEEDS_REG)
-		&& args.s->state != IRC_REGISTERED)
-		log_server_error (args.s, args.s->buffer, "Not registered");
-	else if (((handler->flags & HANDLER_CHANNEL_FIRST)
-			&& !(args.channel_name =
-				try_get_channel (&args, maybe_cut_word)))
-		|| ((handler->flags & HANDLER_CHANNEL_LAST)
-			&& !(args.channel_name =
-				try_get_channel (&args, maybe_cut_word_from_end))))
-		log_server_error (args.s, args.buffer, "/#s: #s", command_name,
-			"no channel name given and this buffer is not a channel");
-	else if (!handler->handler (&args))
-		log_global_error (ctx,
-			"#s: /#s #s", "Usage", handler->name, handler->usage);
-	return true;
-}
-
-static const char *
-expand_alias_escape (const char *p, const char *arguments, struct str *output)
-{
-	struct strv words = strv_make ();
-	cstr_split (arguments, " ", true, &words);
-
-	// TODO: eventually also add support for argument ranges
-	//  - Can use ${0}, ${0:}, ${:0}, ${1:-1} with strtol, dispose of $1 syntax
-	//    (default aliases don't use numeric arguments).
-	//  - Start numbering from zero, since we'd have to figure out what to do
-	//    in case we encounter a zero if we keep the current approach.
-	//  - Ignore the sequence altogether if no closing '}' can be found,
-	//    or if the internal format doesn't fit the above syntax.
-	if (*p >= '1' && *p <= '9')
-	{
-		size_t offset = *p - '1';
-		if (offset < words.len)
-			str_append (output, words.vector[offset]);
-	}
-	else if (*p == '*')
-		str_append (output, arguments);
-	else if (strchr ("$;", *p))
-		str_append_c (output, *p);
-	else
-		str_append_printf (output, "$%c", *p);
-
-	strv_free (&words);
-	return ++p;
-}
-
-static void
-expand_alias_definition (const char *definition, const char *arguments,
-	struct strv *commands)
-{
-	struct str expanded = str_make ();
-	bool escape = false;
-	for (const char *p = definition; *p; p++)
-	{
-		if (escape)
-		{
-			p = expand_alias_escape (p, arguments, &expanded) - 1;
-			escape = false;
-		}
-		else if (*p == ';')
-		{
-			strv_append_owned (commands, str_steal (&expanded));
-			expanded = str_make ();
-		}
-		else if (*p == '$' && p[1])
-			escape = true;
-		else
-			str_append_c (&expanded, *p);
-	}
-	strv_append_owned (commands, str_steal (&expanded));
-}
-
-static bool
-expand_alias (struct app_context *ctx,
-	const char *alias_name, char *input, struct strv *commands)
-{
-	struct config_item *entry =
-		str_map_find (get_aliases_config (ctx), alias_name);
-	if (!entry)
-		return false;
-
-	if (!config_item_type_is_string (entry->type))
-	{
-		log_global_error (ctx, "Error executing `/#s': #s",
-			alias_name, "alias definition is not a string");
-		return false;
-	}
-
-	expand_alias_definition (entry->value.string.str, input, commands);
-	return true;
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-send_message_to_target (struct server *s,
-	const char *target, char *message, struct buffer *buffer)
-{
-	if (!irc_is_connected (s))
-		log_server_error (s, buffer, "Not connected");
-	else
-		SEND_AUTOSPLIT_PRIVMSG (s, target, message);
-}
-
-static void
-send_message_to_buffer (struct app_context *ctx, struct buffer *buffer,
-	char *message)
-{
-	hard_assert (buffer != NULL);
-
-	switch (buffer->type)
-	{
-	case BUFFER_CHANNEL:
-		send_message_to_target (buffer->server,
-			buffer->channel->name, message, buffer);
-		break;
-	case BUFFER_PM:
-		send_message_to_target (buffer->server,
-			buffer->user->nickname, message, buffer);
-		break;
-	default:
-		log_full (ctx, NULL, buffer, BUFFER_LINE_ERROR,
-			"This buffer is not a channel");
-	}
-}
-
-static bool
-process_alias (struct app_context *ctx, struct buffer *buffer,
-	struct strv *commands, int level)
-{
-	for (size_t i = 0; i < commands->len; i++)
-		log_global_debug (ctx, "Alias expanded to: ###d: \"#s\"",
-			(int) i, commands->vector[i]);
-	for (size_t i = 0; i < commands->len; i++)
-		if (!process_input_utf8 (ctx, buffer, commands->vector[i], ++level))
-			return false;
-	return true;
-}
-
-static bool
-process_input_utf8_posthook (struct app_context *ctx, struct buffer *buffer,
-	char *input, int alias_level)
-{
-	if (*input != '/' || *++input == '/')
-	{
-		send_message_to_buffer (ctx, buffer, input);
-		return true;
-	}
-
-	char *name = cut_word (&input);
-	if (process_user_command (ctx, buffer, name, input))
-		return true;
-
-	struct strv commands = strv_make ();
-	bool result = false;
-	if (!expand_alias (ctx, name, input, &commands))
-		log_global_error (ctx, "#s: /#s", "No such command or alias", name);
-	else if (alias_level != 0)
-		log_global_error (ctx, "#s: /#s", "Aliases can't nest", name);
-	else
-		result = process_alias (ctx, buffer, &commands, alias_level);
-
-	strv_free (&commands);
-	return result;
-}
-
-static char *
-process_input_hooks (struct app_context *ctx, struct buffer *buffer,
-	char *input)
-{
-	uint64_t hash = siphash_wrapper (input, strlen (input));
-	LIST_FOR_EACH (struct hook, iter, ctx->input_hooks)
-	{
-		struct input_hook *hook = (struct input_hook *) iter;
-		if (!(input = hook->filter (hook, buffer, input)))
-		{
-			log_global_debug (ctx, "Input thrown away by hook");
-			return NULL;
-		}
-
-		uint64_t new_hash = siphash_wrapper (input, strlen (input));
-		if (new_hash != hash)
-			log_global_debug (ctx, "Input transformed to \"#s\"#r", input);
-		hash = new_hash;
-	}
-	return input;
-}
-
-static bool
-process_input_utf8 (struct app_context *ctx, struct buffer *buffer,
-	const char *input, int alias_level)
-{
-	// Note that this also gets called on expanded aliases,
-	// which might or might not be desirable (we can forward "alias_level")
-	char *processed = process_input_hooks (ctx, buffer, xstrdup (input));
-	bool result = !processed
-		|| process_input_utf8_posthook (ctx, buffer, processed, alias_level);
-	free (processed);
-	return result;
-}
-
-static void
-process_input (struct app_context *ctx, char *user_input)
-{
-	char *input;
-	if (!(input = iconv_xstrdup (ctx->term_to_utf8, user_input, -1, NULL)))
-		print_error ("character conversion failed for: %s", "user input");
-	else
-	{
-		struct strv lines = strv_make ();
-
-		// XXX: this interprets commands in pasted text
-		cstr_split (input, "\r\n", false, &lines);
-		for (size_t i = 0; i < lines.len; i++)
-			(void) process_input_utf8 (ctx,
-				ctx->current_buffer, lines.vector[i], 0);
-
-		strv_free (&lines);
-	}
-	free (input);
-}
-
-// --- Word completion ---------------------------------------------------------
-
-// The amount of crap that goes into this is truly insane.
-// It's mostly because of Editline's total ignorance of this task.
-
-static void
-completion_init (struct completion *self)
-{
-	memset (self, 0, sizeof *self);
-}
-
-static void
-completion_free (struct completion *self)
-{
-	free (self->line);
-	free (self->words);
-}
-
-static void
-completion_add_word (struct completion *self, size_t start, size_t end)
-{
-	if (!self->words)
-		self->words = xcalloc ((self->words_alloc = 4), sizeof *self->words);
-	if (self->words_len == self->words_alloc)
-		self->words = xreallocarray (self->words,
-			(self->words_alloc <<= 1), sizeof *self->words);
-	self->words[self->words_len++] = (struct completion_word) { start, end };
-}
-
-static void
-completion_parse (struct completion *self, const char *line, size_t len)
-{
-	self->line = xstrndup (line, len);
-
-	// The first and the last word may be empty
-	const char *s = self->line;
-	while (true)
-	{
-		const char *start = s;
-		size_t word_len = strcspn (s, WORD_BREAKING_CHARS);
-		const char *end = start + word_len;
-		s = end + strspn (end, WORD_BREAKING_CHARS);
-
-		completion_add_word (self, start - self->line, end - self->line);
-		if (s == end)
-			break;
-	}
-}
-
-static void
-completion_locate (struct completion *self, size_t offset)
-{
-	size_t i = 0;
-	for (; i < self->words_len; i++)
-		if (self->words[i].start > offset)
-			break;
-	self->location = i - 1;
-}
-
-static char *
-completion_word (struct completion *self, int word)
-{
-	hard_assert (word >= 0 && word < (int) self->words_len);
-	return xstrndup (self->line + self->words[word].start,
-		self->words[word].end - self->words[word].start);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-// XXX: this isn't completely right because Unicode, but let's keep it simple.
-//   At worst it will stop before a combining mark, or fail to compare
-//   non-ASCII identifiers case-insensitively.
-
-static size_t
-utf8_common_prefix (const char **vector, size_t len)
-{
-	size_t prefix = 0;
-	if (!vector || !len)
-		return 0;
-
-	struct utf8_iter a[len];
-	for (size_t i = 0; i < len; i++)
-		a[i] = utf8_iter_make (vector[i]);
-
-	size_t ch_len;
-	int32_t ch;
-	while ((ch = utf8_iter_next (&a[0], &ch_len)) >= 0)
-	{
-		for (size_t i = 1; i < len; i++)
-		{
-			int32_t other = utf8_iter_next (&a[i], NULL);
-			if (ch == other)
-				continue;
-			// Not bothering with lowercasing non-ASCII
-			if (ch >= 0x80 || other >= 0x80
-			 || tolower_ascii (ch) != tolower_ascii (other))
-				return prefix;
-		}
-		prefix += ch_len;
-	}
-	return prefix;
-}
-
-static void
-complete_command (struct app_context *ctx, struct completion *data,
-	const char *word, struct strv *output)
-{
-	(void) data;
-
-	const char *prefix = "";
-	if (*word == '/')
-	{
-		word++;
-		prefix = "/";
-	}
-
-	size_t word_len = strlen (word);
-	for (size_t i = 0; i < N_ELEMENTS (g_command_handlers); i++)
-	{
-		struct command_handler *handler = &g_command_handlers[i];
-		if (!strncasecmp_ascii (word, handler->name, word_len))
-			strv_append_owned (output,
-				xstrdup_printf ("%s%s", prefix, handler->name));
-	}
-
-	struct str_map_iter iter = str_map_iter_make (get_aliases_config (ctx));
-	struct config_item *alias;
-	while ((alias = str_map_iter_next (&iter)))
-	{
-		if (!strncasecmp_ascii (word, iter.link->key, word_len))
-			strv_append_owned (output,
-				xstrdup_printf ("%s%s", prefix, iter.link->key));
-	}
-}
-
-static void
-complete_option (struct app_context *ctx, struct completion *data,
-	const char *word, struct strv *output)
-{
-	(void) data;
-
-	struct strv options = strv_make ();
-	config_dump (ctx->config.root, &options);
-	strv_sort (&options);
-
-	// Wildcard expansion is an interesting side-effect
-	char *mask = xstrdup_printf ("%s*", word);
-	for (size_t i = 0; i < options.len; i++)
-	{
-		char *key = cstr_cut_until (options.vector[i], " ");
-		if (!fnmatch (mask, key, 0))
-			strv_append_owned (output, key);
-		else
-			free (key);
-	}
-	free (mask);
-	strv_free (&options);
-}
-
-static void
-complete_set_value (struct config_item *item, const char *word,
-	struct strv *output)
-{
-	struct str serialized = str_make ();
-	config_item_write (item, false, &serialized);
-	if (!strncmp (serialized.str, word, strlen (word)))
-		strv_append_owned (output, str_steal (&serialized));
-	else
-		str_free (&serialized);
-}
-
-static void
-complete_set_value_array (struct config_item *item, const char *word,
-	struct strv *output)
-{
-	if (!item->schema || item->schema->type != CONFIG_ITEM_STRING_ARRAY)
-		return;
-
-	struct strv items = strv_make ();
-	cstr_split (item->value.string.str, ",", false, &items);
-	for (size_t i = 0; i < items.len; i++)
-	{
-		struct str wrapped = str_make (), serialized = str_make ();
-		str_append (&wrapped, items.vector[i]);
-		config_item_write_string (&serialized, &wrapped);
-		str_free (&wrapped);
-
-		if (!strncmp (serialized.str, word, strlen (word)))
-			strv_append_owned (output, str_steal (&serialized));
-		else
-			str_free (&serialized);
-	}
-	strv_free (&items);
-}
-
-static void
-complete_set (struct app_context *ctx, struct completion *data,
-	const char *word, struct strv *output)
-{
-	if (data->location == 1)
-	{
-		complete_option (ctx, data, word, output);
-		return;
-	}
-	if (data->location != 3)
-		return;
-
-	char *key = completion_word (data, 1);
-	struct config_item *item = config_item_get (ctx->config.root, key, NULL);
-	if (item)
-	{
-		char *op = completion_word (data, 2);
-		if (!strcmp (op, "-=")) complete_set_value_array (item, word, output);
-		if (!strcmp (op,  "=")) complete_set_value       (item, word, output);
-		free (op);
-	}
-	free (key);
-}
-
-static void
-complete_topic (struct app_context *ctx, struct completion *data,
-	const char *word, struct strv *output)
-{
-	(void) data;
-
-	// TODO: make it work in other server-related buffers, too, i.e. when we're
-	//   completing the third word and the second word is a known channel name
-	struct buffer *buffer = ctx->current_buffer;
-	if (buffer->type != BUFFER_CHANNEL)
-		return;
-
-	const char *topic = buffer->channel->topic;
-	if (topic && !strncasecmp_ascii (word, topic, strlen (word)))
-	{
-		// We must prepend the channel name if the topic itself starts
-		// with something that could be regarded as a channel name
-		strv_append_owned (output, irc_is_channel (buffer->server, topic)
-			? xstrdup_printf ("%s %s", buffer->channel->name, topic)
-			: xstrdup (topic));
-	}
-}
-
-static void
-complete_nicknames (struct app_context *ctx, struct completion *data,
-	const char *word, struct strv *output)
-{
-	struct buffer *buffer = ctx->current_buffer;
-	if (buffer->type == BUFFER_SERVER)
-	{
-		struct user *self_user = buffer->server->irc_user;
-		if (self_user)
-			strv_append (output, self_user->nickname);
-	}
-	if (buffer->type != BUFFER_CHANNEL)
-		return;
-
-	size_t word_len = strlen (word);
-	LIST_FOR_EACH (struct channel_user, iter, buffer->channel->users)
-	{
-		const char *nickname = iter->user->nickname;
-		if (irc_server_strncmp (buffer->server, word, nickname, word_len))
-			continue;
-		strv_append_owned (output, data->location == 0
-			? xstrdup_printf ("%s:", nickname)
-			: xstrdup (nickname));
-	}
-}
-
-static char **
-complete_word (struct app_context *ctx, struct completion *data,
-	const char *word)
-{
-	char *initial = completion_word (data, 0);
-
-	// Start with a placeholder for the longest common prefix
-	struct strv words = strv_make ();
-	strv_append_owned (&words, NULL);
-
-	if      (data->location == 0 && *initial == '/')
-		complete_command   (ctx, data, word, &words);
-	else if (data->location >= 1 && !strcmp (initial, "/set"))
-		complete_set       (ctx, data, word, &words);
-	else if (data->location == 1 && !strcmp (initial, "/help"))
-	{
-		complete_command   (ctx, data, word, &words);
-		complete_option    (ctx, data, word, &words);
-	}
-	else if (data->location == 1 && !strcmp (initial, "/topic"))
-	{
-		complete_topic     (ctx, data, word, &words);
-		complete_nicknames (ctx, data, word, &words);
-	}
-	else
-		complete_nicknames (ctx, data, word, &words);
-
-	cstr_set (&initial, NULL);
-	LIST_FOR_EACH (struct hook, iter, ctx->completion_hooks)
-	{
-		struct completion_hook *hook = (struct completion_hook *) iter;
-		hook->complete (hook, data, word, &words);
-	}
-
-	if (words.len == 1)
-	{
-		// Nothing matched
-		strv_free (&words);
-		return NULL;
-	}
-
-	if (words.len == 2)
-	{
-		words.vector[0] = words.vector[1];
-		words.vector[1] = NULL;
-	}
-	else
-	{
-		size_t prefix = utf8_common_prefix
-			((const char **) words.vector + 1, words.len - 1);
-		if (!prefix)
-			words.vector[0] = xstrdup (word);
-		else
-			words.vector[0] = xstrndup (words.vector[1], prefix);
-	}
-	return words.vector;
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-/// A special wrapper for iconv_xstrdup() that also fixes indexes into the
-/// original string to point to the right location in the output.
-/// Thanks, Readline!  Without you I would have never needed to deal with this.
-static char *
-locale_to_utf8 (struct app_context *ctx, const char *locale,
-	int *indexes[], size_t n_indexes)
-{
-	mbstate_t state;
-	memset (&state, 0, sizeof state);
-
-	size_t remaining = strlen (locale) + 1;
-	const char *p = locale;
-
-	// Reset the shift state, FWIW
-	(void) iconv (ctx->term_to_utf8, NULL, NULL, NULL, NULL);
-
-	bool fixed[n_indexes];
-	memset (fixed, 0, sizeof fixed);
-
-	struct str utf8 = str_make ();
-	while (true)
-	{
-		size_t len = mbrlen (p, remaining, &state);
-
-		// Incomplete multibyte character or illegal sequence (probably)
-		if (len == (size_t) -2
-		 || len == (size_t) -1)
-		{
-			str_free (&utf8);
-			return NULL;
-		}
-
-		// Convert indexes into the multibyte string to UTF-8
-		for (size_t i = 0; i < n_indexes; i++)
-			if (!fixed[i] && *indexes[i] <= p - locale)
-			{
-				*indexes[i] = utf8.len;
-				fixed[i] = true;
-			}
-
-		// End of string
-		if (!len)
-			break;
-
-		// EINVAL (incomplete sequence) should never happen and
-		// EILSEQ neither because we've already checked for that with mbrlen().
-		// E2BIG is what iconv_xstrdup solves.  This must succeed.
-		size_t ch_len;
-		char *ch = iconv_xstrdup (ctx->term_to_utf8, (char *) p, len, &ch_len);
-		hard_assert (ch != NULL);
-		str_append_data (&utf8, ch, ch_len);
-		free (ch);
-
-		p += len;
-		remaining -= len;
-	}
-	return str_steal (&utf8);
-}
-
-static void
-utf8_vector_to_locale (struct app_context *ctx, char **vector)
-{
-	for (; *vector; vector++)
-	{
-		char *converted = iconv_xstrdup
-			(ctx->term_from_utf8, *vector, -1, NULL);
-		if (!soft_assert (converted))
-			converted = xstrdup ("");
-
-		cstr_set (vector, converted);
-	}
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-/// Takes a line in locale-specific encoding and position of a word to complete,
-/// returns a vector of matches in locale-specific encoding.
-static char **
-make_completions (struct app_context *ctx, char *line, int start, int end)
-{
-	int *fixes[] = { &start, &end };
-	char *line_utf8 = locale_to_utf8 (ctx, line, fixes, N_ELEMENTS (fixes));
-	if (!line_utf8)
-		return NULL;
-
-	hard_assert (start >= 0 && end >= 0 && start <= end);
-
-	struct completion c;
-	completion_init (&c);
-	completion_parse (&c, line, strlen (line));
-	completion_locate (&c, start);
-	char *word = xstrndup (line + start, end - start);
-	char **completions = complete_word (ctx, &c, word);
-	free (word);
-	completion_free (&c);
-
-	if (completions)
-		utf8_vector_to_locale (ctx, completions);
-
-	free (line_utf8);
-	return completions;
-}
-
-// --- Common code for user actions --------------------------------------------
-
-static void
-toggle_bracketed_paste (bool enable)
-{
-	fprintf (stdout, "\x1b[?2004%c", "lh"[enable]);
-	fflush (stdout);
-}
-
-static void
-suspend_terminal (struct app_context *ctx)
-{
-	// Terminal can get suspended by both backlog helper and SIGTSTP handling
-	if (ctx->terminal_suspended++ > 0)
-		return;
-
-	toggle_bracketed_paste (false);
-	CALL (ctx->input, hide);
-	poller_fd_reset (&ctx->tty_event);
-
-	CALL_ (ctx->input, prepare, false);
-}
-
-static void
-resume_terminal (struct app_context *ctx)
-{
-	if (--ctx->terminal_suspended > 0)
-		return;
-
-	update_screen_size ();
-	CALL_ (ctx->input, prepare, true);
-	CALL (ctx->input, on_tty_resized);
-
-	toggle_bracketed_paste (true);
-	// In theory we could just print all unseen messages but this is safer
-	buffer_print_backlog (ctx, ctx->current_buffer);
-	// Now it's safe to process any user input
-	poller_fd_set (&ctx->tty_event, POLLIN);
-	CALL (ctx->input, show);
-}
-
-static pid_t
-spawn_helper_child (struct app_context *ctx)
-{
-	suspend_terminal (ctx);
-	pid_t child = fork ();
-	switch (child)
-	{
-	case -1:
-	{
-		int saved_errno = errno;
-		resume_terminal (ctx);
-		errno = saved_errno;
-		break;
-	}
-	case 0:
-		// Put the child in a new foreground process group
-		hard_assert (setpgid (0, 0) != -1);
-		hard_assert (tcsetpgrp (STDOUT_FILENO, getpgid (0)) != -1);
-		break;
-	default:
-		// Make sure of it in the parent as well before continuing
-		(void) setpgid (child, child);
-	}
-	return child;
-}
-
-static void
-redraw_screen (struct app_context *ctx)
-{
-	// If by some circumstance we had the wrong idea
-	CALL (ctx->input, on_tty_resized);
-	update_screen_size ();
-
-	CALL (ctx->input, hide);
-	buffer_print_backlog (ctx, ctx->current_buffer);
-	CALL (ctx->input, show);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static bool
-dump_input_to_file (struct app_context *ctx, char *template, struct error **e)
-{
-	mode_t mask = umask (S_IXUSR | S_IRWXG | S_IRWXO);
-	int fd = mkstemp (template);
-	(void) umask (mask);
-
-	if (fd < 0)
-		return error_set (e, "%s", strerror (errno));
-
-	char *input = CALL (ctx->input, get_line);
-	bool success = xwrite (fd, input, strlen (input), e);
-	free (input);
-
-	if (!success)
-		(void) unlink (template);
-
-	xclose (fd);
-	return success;
-}
-
-static char *
-try_dump_input_to_file (struct app_context *ctx)
-{
-	char *template = resolve_filename
-		("input.XXXXXX", resolve_relative_runtime_template);
-
-	struct error *e = NULL;
-	if (dump_input_to_file (ctx, template, &e))
-		return template;
-
-	log_global_error (ctx, "#s: #s",
-		"Failed to create a temporary file for editing", e->message);
-	error_free (e);
-	free (template);
-	return NULL;
-}
-
-static bool
-on_edit_input (int count, int key, void *user_data)
-{
-	(void) count;
-	(void) key;
-	struct app_context *ctx = user_data;
-
-	char *filename;
-	if (!(filename = try_dump_input_to_file (ctx)))
-		return false;
-
-	const char *command;
-	if (!(command = getenv ("VISUAL"))
-	 && !(command = getenv ("EDITOR")))
-		command = "vi";
-
-	hard_assert (!ctx->running_editor);
-	switch (spawn_helper_child (ctx))
-	{
-	case 0:
-		execlp (command, command, filename, NULL);
-		print_error ("%s: %s",
-			"Failed to launch editor", strerror (errno));
-		_exit (EXIT_FAILURE);
-	case -1:
-		log_global_error (ctx, "#s: #l",
-			"Failed to launch editor", strerror (errno));
-		free (filename);
-		break;
-	default:
-		ctx->running_editor = true;
-		ctx->editor_filename = filename;
-	}
-	return true;
-}
-
-static void
-input_editor_process (struct app_context *ctx)
-{
-	struct str input = str_make ();
-	struct error *e = NULL;
-	if (!read_file (ctx->editor_filename, &input, &e))
-	{
-		log_global_error (ctx, "#s: #s", "Input editing failed", e->message);
-		error_free (e);
-	}
-	else
-		CALL (ctx->input, clear_line);
-
-	if (!CALL_ (ctx->input, insert, input.str))
-		log_global_error (ctx, "#s: #s", "Input editing failed",
-			"could not re-insert the modified text");
-
-	str_free (&input);
-}
-
-static void
-input_editor_cleanup (struct app_context *ctx)
-{
-	if (unlink (ctx->editor_filename))
-		log_global_error (ctx, "Could not unlink `#s': #l",
-			ctx->editor_filename, strerror (errno));
-
-	cstr_set (&ctx->editor_filename, NULL);
-	ctx->running_editor = false;
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-launch_backlog_helper (struct app_context *ctx, int backlog_fd)
-{
-	hard_assert (!ctx->running_backlog_helper);
-	switch (spawn_helper_child (ctx))
-	{
-	case 0:
-		dup2 (backlog_fd, STDIN_FILENO);
-		execl ("/bin/sh", "/bin/sh", "-c", get_config_string
-			(ctx->config.root, "behaviour.backlog_helper"), NULL);
-		print_error ("%s: %s",
-			"Failed to launch backlog helper", strerror (errno));
-		_exit (EXIT_FAILURE);
-	case -1:
-		log_global_error (ctx, "#s: #l",
-			"Failed to launch backlog helper", strerror (errno));
-		break;
-	default:
-		ctx->running_backlog_helper = true;
-	}
-}
-
-static bool
-display_backlog (struct app_context *ctx, int flush_opts)
-{
-	FILE *backlog = tmpfile ();
-	if (!backlog)
-	{
-		log_global_error (ctx, "#s: #l",
-			"Failed to create a temporary file", strerror (errno));
-		return false;
-	}
-
-	if (!get_config_boolean (ctx->config.root,
-		"behaviour.backlog_helper_strip_formatting"))
-		flush_opts |= FLUSH_OPT_RAW;
-
-	struct buffer *buffer = ctx->current_buffer;
-	int until_marker =
-		(int) buffer->lines_count - (int) buffer->new_messages_count;
-	for (struct buffer_line *line = buffer->lines; line; line = line->next)
-	{
-		if (until_marker-- == 0
-		 && buffer->new_messages_count != buffer->lines_count)
-			buffer_print_read_marker (ctx, backlog, flush_opts);
-		if (buffer_line_will_show_up (buffer, line))
-			buffer_line_write_to_backlog (ctx, line, backlog, flush_opts);
-	}
-
-	// So that it is obvious if the last line in the buffer is not from today
-	buffer_update_time (ctx, time (NULL), backlog, flush_opts);
-
-	rewind (backlog);
-	set_cloexec (fileno (backlog));
-	launch_backlog_helper (ctx, fileno (backlog));
-	fclose (backlog);
-	return true;
-}
-
-static bool
-on_display_backlog (int count, int key, void *user_data)
-{
-	(void) count;
-	(void) key;
-	return display_backlog (user_data, 0);
-}
-
-static bool
-on_display_backlog_nowrap (int count, int key, void *user_data)
-{
-	(void) count;
-	(void) key;
-	return display_backlog (user_data, FLUSH_OPT_NOWRAP);
-}
-
-static bool
-on_display_full_log (int count, int key, void *user_data)
-{
-	(void) count;
-	(void) key;
-	struct app_context *ctx = user_data;
-
-	char *path = buffer_get_log_path (ctx->current_buffer);
-	FILE *full_log = fopen (path, "rb");
-	free (path);
-
-	if (!full_log)
-	{
-		log_global_error (ctx, "Failed to open log file for #s: #l",
-			ctx->current_buffer->name, strerror (errno));
-		return false;
-	}
-
-	if (ctx->current_buffer->log_file)
-		// The regular flush will log any error eventually
-		(void) fflush (ctx->current_buffer->log_file);
-
-	set_cloexec (fileno (full_log));
-	launch_backlog_helper (ctx, fileno (full_log));
-	fclose (full_log);
-	return true;
-}
-
-static bool
-on_toggle_unimportant (int count, int key, void *user_data)
-{
-	(void) count;
-	(void) key;
-	struct app_context *ctx = user_data;
-	ctx->current_buffer->hide_unimportant ^= true;
-	buffer_print_backlog (ctx, ctx->current_buffer);
-	return true;
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static bool
-on_goto_buffer (int count, int key, void *user_data)
-{
-	(void) count;
-	struct app_context *ctx = user_data;
-
-	int n = key - '0';
-	if (n < 0 || n > 9)
-		return false;
-
-	// There's no buffer zero
-	if (n == 0)
-		n = 10;
-
-	if (!ctx->last_buffer || buffer_get_index (ctx, ctx->current_buffer) != n)
-		return buffer_goto (ctx, n);
-
-	// Fast switching between two buffers
-	buffer_activate (ctx, ctx->last_buffer);
-	return true;
-}
-
-static bool
-on_previous_buffer (int count, int key, void *user_data)
-{
-	(void) key;
-	buffer_activate (user_data, buffer_previous (user_data, count));
-	return true;
-}
-
-static bool
-on_next_buffer (int count, int key, void *user_data)
-{
-	(void) key;
-	buffer_activate (user_data, buffer_next (user_data, count));
-	return true;
-}
-
-static bool
-on_switch_buffer (int count, int key, void *user_data)
-{
-	(void) count;
-	(void) key;
-	struct app_context *ctx = user_data;
-
-	if (!ctx->last_buffer)
-		return false;
-	buffer_activate (ctx, ctx->last_buffer);
-	return true;
-}
-
-static bool
-on_goto_highlight (int count, int key, void *user_data)
-{
-	(void) count;
-	(void) key;
-
-	struct app_context *ctx = user_data;
-	struct buffer *iter = ctx->current_buffer;;
-	do
-	{
-		if (!(iter = iter->next))
-			iter = ctx->buffers;
-		if (iter == ctx->current_buffer)
-			return false;
-	}
-	while (!iter->highlighted);
-	buffer_activate (ctx, iter);
-	return true;
-}
-
-static bool
-on_goto_activity (int count, int key, void *user_data)
-{
-	(void) count;
-	(void) key;
-
-	struct app_context *ctx = user_data;
-	struct buffer *iter = ctx->current_buffer;
-	do
-	{
-		if (!(iter = iter->next))
-			iter = ctx->buffers;
-		if (iter == ctx->current_buffer)
-			return false;
-	}
-	while (iter->new_messages_count == iter->new_unimportant_count);
-	buffer_activate (ctx, iter);
-	return true;
-}
-
-static bool
-on_move_buffer_left (int count, int key, void *user_data)
-{
-	(void) key;
-
-	struct app_context *ctx = user_data;
-	int total = buffer_count (ctx);
-	int n = buffer_get_index (ctx, ctx->current_buffer) - count;
-	buffer_move (ctx, ctx->current_buffer, n <= 0
-		? (total + n % total)
-		: ((n - 1) % total + 1));
-	return true;
-}
-
-static bool
-on_move_buffer_right (int count, int key, void *user_data)
-{
-	return on_move_buffer_left (-count, key, user_data);
-}
-
-static bool
-on_redraw_screen (int count, int key, void *user_data)
-{
-	(void) count;
-	(void) key;
-
-	redraw_screen (user_data);
-	return true;
-}
-
-static bool
-on_insert_attribute (int count, int key, void *user_data)
-{
-	(void) count;
-	(void) key;
-
-	struct app_context *ctx = user_data;
-	ctx->awaiting_mirc_escape = true;
-	return true;
-}
-
-static bool
-on_start_paste_mode (int count, int key, void *user_data)
-{
-	(void) count;
-	(void) key;
-
-	struct app_context *ctx = user_data;
-	ctx->in_bracketed_paste = true;
-	return true;
-}
-
-static void
-input_add_functions (void *user_data)
-{
-	struct app_context *ctx = user_data;
-#define XX(...) CALL_ (ctx->input, register_fn, __VA_ARGS__, ctx);
-	XX ("previous-buffer",    "Previous buffer",   on_previous_buffer)
-	XX ("next-buffer",        "Next buffer",       on_next_buffer)
-	XX ("goto-buffer",        "Go to buffer",      on_goto_buffer)
-	XX ("switch-buffer",      "Switch buffer",     on_switch_buffer)
-	XX ("goto-highlight",     "Go to highlight",   on_goto_highlight)
-	XX ("goto-activity",      "Go to activity",    on_goto_activity)
-	XX ("move-buffer-left",   "Move buffer left",  on_move_buffer_left)
-	XX ("move-buffer-right",  "Move buffer right", on_move_buffer_right)
-	XX ("display-backlog",    "Show backlog",      on_display_backlog)
-	XX ("display-backlog-nw", "Non-wrapped log",   on_display_backlog_nowrap)
-	XX ("display-full-log",   "Show full log",     on_display_full_log)
-	XX ("toggle-unimportant", "Toggle junk msgs",  on_toggle_unimportant)
-	XX ("edit-input",         "Edit input",        on_edit_input)
-	XX ("redraw-screen",      "Redraw screen",     on_redraw_screen)
-	XX ("insert-attribute",   "mIRC formatting",   on_insert_attribute)
-	XX ("start-paste-mode",   "Bracketed paste",   on_start_paste_mode)
-#undef XX
-}
-
-static void
-bind_common_keys (struct app_context *ctx)
-{
-	struct input *self = ctx->input;
-	CALL_ (self, bind_control, 'p', "previous-buffer");
-	CALL_ (self, bind_control, 'n', "next-buffer");
-
-	// Redefine M-0 through M-9 to switch buffers
-	for (int i = 0; i <= 9; i++)
-		CALL_ (self, bind_meta, '0' + i, "goto-buffer");
-
-	CALL_ (self, bind_meta, '\t', "switch-buffer");
-	CALL_ (self, bind_meta, '!', "goto-highlight");
-	CALL_ (self, bind_meta, 'a', "goto-activity");
-	CALL_ (self, bind_meta, 'm', "insert-attribute");
-	CALL_ (self, bind_meta, 'h', "display-full-log");
-	CALL_ (self, bind_meta, 'H', "toggle-unimportant");
-	CALL_ (self, bind_meta, 'e', "edit-input");
-
-	if (key_f5)     CALL_ (self, bind, key_f5, "previous-buffer");
-	if (key_f6)     CALL_ (self, bind, key_f6, "next-buffer");
-	if (key_ppage)  CALL_ (self, bind, key_ppage, "display-backlog");
-
-	if (clear_screen)
-		CALL_ (self, bind_control, 'l', "redraw-screen");
-
-	CALL_ (self, bind, "\x1b[200~", "start-paste-mode");
-}
-
-// --- GNU Readline user actions -----------------------------------------------
-
-#ifdef HAVE_READLINE
-
-static int
-on_readline_return (int count, int key)
-{
-	(void) count;
-	(void) key;
-
-	// Let readline pass the line to our input handler
-	rl_done = 1;
-
-	struct app_context *ctx = g_ctx;
-	struct input_rl *self = (struct input_rl *) ctx->input;
-
-	// Hide the line, don't redisplay it
-	CALL (ctx->input, hide);
-	input_rl__restore (self);
-	return 0;
-}
-
-static void
-on_readline_input (char *line)
-{
-	struct app_context *ctx = g_ctx;
-	struct input_rl *self = (struct input_rl *) ctx->input;
-
-	if (line)
-	{
-		if (*line)
-			add_history (line);
-
-		// readline always erases the input line after returning from here,
-		// but we don't want that to happen if the command to be executed
-		// would switch the buffer (we'd keep the already executed command in
-		// the old buffer and delete any input restored from the new buffer)
-		strv_append_owned (&ctx->pending_input, line);
-		poller_idle_set (&ctx->input_event);
-	}
-	else
-	{
-		// Prevent readline from showing the prompt twice for w/e reason
-		CALL (ctx->input, hide);
-		input_rl__restore (self);
-
-		CALL (ctx->input, ding);
-	}
-
-	if (self->active)
-		// Readline automatically redisplays it
-		self->prompt_shown = 1;
-}
-
-static char **
-app_readline_completion (const char *text, int start, int end)
-{
-	// We will reconstruct that ourselves
-	(void) text;
-
-	// Don't iterate over filenames and stuff
-	rl_attempted_completion_over = true;
-
-	return make_completions (g_ctx, rl_line_buffer, start, end);
-}
-
-static int
-app_readline_init (void)
-{
-	struct app_context *ctx = g_ctx;
-	struct input *self = ctx->input;
-
-	// XXX: maybe use rl_make_bare_keymap() and start from there;
-	//   our dear user could potentionally rig things up in a way that might
-	//   result in some funny unspecified behaviour
-
-	// For vi mode, enabling "show-mode-in-prompt" is recommended as there is
-	// no easy way to indicate mode changes otherwise.
-
-	rl_add_defun ("send-line", on_readline_return, -1);
-	bind_common_keys (ctx);
-
-	// Move native history commands
-	CALL_ (self, bind_meta, 'p', "previous-history");
-	CALL_ (self, bind_meta, 'n', "next-history");
-
-	// We need to hide the prompt and input first
-	rl_bind_key (RETURN, rl_named_function ("send-line"));
-	CALL_ (self, bind_control, 'j', "send-line");
-
-	rl_variable_bind ("completion-ignore-case", "on");
-	rl_bind_key (TAB, rl_named_function ("menu-complete"));
-	if (key_btab)
-		CALL_ (self, bind, key_btab, "menu-complete-backward");
-	return 0;
-}
-
-#endif // HAVE_READLINE
-
-// --- BSD Editline user actions -----------------------------------------------
-
-#ifdef HAVE_EDITLINE
-
-static unsigned char
-on_editline_complete (EditLine *editline, int key)
-{
-	(void) key;
-	(void) editline;
-
-	struct app_context *ctx = g_ctx;
-
-	// First prepare what Readline would have normally done for us...
-	const LineInfo *info_mb = el_line (editline);
-	int len = info_mb->lastchar - info_mb->buffer;
-	int point = info_mb->cursor - info_mb->buffer;
-	char *copy = xstrndup (info_mb->buffer, len);
-
-	// XXX: possibly incorrect wrt. shift state encodings
-	int el_start = point, el_end = point;
-	while (el_start && !strchr (WORD_BREAKING_CHARS, copy[el_start - 1]))
-		el_start--;
-
-	char **completions = make_completions (ctx, copy, el_start, el_end);
-
-	// XXX: possibly incorrect wrt. shift state encodings
-	copy[el_end] = '\0';
-	int el_len = mbstowcs (NULL, copy + el_start, 0);
-	free (copy);
-
-	if (!completions)
-		return CC_REFRESH_BEEP;
-
-	// Remove the original word
-	el_wdeletestr (editline, el_len);
-
-	// Insert the best match instead
-	el_insertstr (editline, completions[0]);
-	bool only_match = !completions[1];
-	for (char **p = completions; *p; p++)
-		free (*p);
-	free (completions);
-
-	// I'm not sure if Readline's menu-complete can at all be implemented
-	// with Editline.  Spamming the terminal with possible completions
-	// probably isn't what the user wants and we have no way of detecting
-	// what the last executed handler was.
-	if (!only_match)
-		return CC_REFRESH_BEEP;
-
-	// But if there actually is just one match, finish the word
-	el_insertstr (editline, " ");
-	return CC_REFRESH;
-}
-
-static unsigned char
-on_editline_return (EditLine *editline, int key)
-{
-	(void) key;
-	struct app_context *ctx = g_ctx;
-	struct input_el *self = (struct input_el *) ctx->input;
-
-	const LineInfoW *info = el_wline (editline);
-	int len = info->lastchar - info->buffer;
-	int point = info->cursor - info->buffer;
-
-	wchar_t *line = calloc (sizeof *info->buffer, len + 1);
-	memcpy (line, info->buffer, sizeof *info->buffer * len);
-
-	// XXX: Editline seems to remember its position in history,
-	//   so it's not going to work as you'd expect it to
-	if (*line)
-	{
-		HistEventW ev;
-		history_w (self->current->history, &ev, H_ENTER, line);
-		print_debug ("history: %d %ls", ev.num, ev.str);
-	}
-	free (line);
-
-	// process_input() expects a multibyte string
-	const LineInfo *info_mb = el_line (editline);
-	strv_append_owned (&ctx->pending_input,
-		xstrndup (info_mb->buffer, info_mb->lastchar - info_mb->buffer));
-	poller_idle_set (&ctx->input_event);
-
-	el_cursor (editline, len - point);
-	el_wdeletestr (editline, len);
-	return CC_REFRESH;
-}
-
-static void
-app_editline_init (struct input_el *self)
-{
-	// el_set() leaks memory in 20150325 and other versions, we need wchar_t
-	el_wset (self->editline, EL_ADDFN,
-		L"send-line", L"Send line",     on_editline_return);
-	el_wset (self->editline, EL_ADDFN,
-		L"complete",  L"Complete word", on_editline_complete);
-
-	struct input *input = &self->super;
-	input->add_functions (input->user_data);
-	bind_common_keys (g_ctx);
-
-	// Move native history commands
-	CALL_ (input, bind_meta, 'p', "ed-prev-history");
-	CALL_ (input, bind_meta, 'n', "ed-next-history");
-
-	// No, editline, it's not supposed to kill the entire line
-	CALL_ (input, bind_control, 'w', "ed-delete-prev-word");
-	// Just what are you doing?
-	CALL_ (input, bind_control, 'u', "vi-kill-line-prev");
-
-	// We need to hide the prompt and input first
-	CALL_ (input, bind, "\n", "send-line");
-
-	CALL_ (input, bind_control, 'i', "complete");
-
-	// Source the user's defaults file
-	el_source (self->editline, NULL);
-}
-
-#endif // HAVE_EDITLINE
-
-// --- Configuration loading ---------------------------------------------------
-
-static const char *g_first_time_help[] =
-{
-	"",
-	"\x02Welcome to degesch!",
-	"",
-	"To get a list of all commands, type \x02/help\x02.  To obtain",
-	"more information on a command or option, simply add it as",
-	"a parameter, e.g. \x02/help set\x02 or \x02/help behaviour.logging\x02.",
-	"",
-	"To switch between buffers, press \x02"
-		"F5/Ctrl-P\x02 or \x02" "F6/Ctrl-N\x02.",
-	"",
-	"Finally, adding a network is as simple as:",
-	" - \x02/server add freenode\x02",
-	" - \x02/set servers.freenode.addresses = \"chat.freenode.net\"\x02",
-	" - \x02/connect freenode\x02",
-	"",
-	"That should be enough to get you started.  Have fun!",
-	""
-};
-
-static void
-show_first_time_help (struct app_context *ctx)
-{
-	for (size_t i = 0; i < N_ELEMENTS (g_first_time_help); i++)
-		log_global_indent (ctx, "#m", g_first_time_help[i]);
-}
-
-const char *g_default_aliases[][2] =
-{
-	{ "c",     "/buffer clear" }, { "close", "/buffer close" },
-	{ "j",     "/join $*"      }, { "p",     "/part $*"      },
-	{ "k",     "/kick $*"      }, { "kb",    "/kickban $*"   },
-	{ "m",     "/msg $*"       }, { "q",     "/query $*"     },
-	{ "n",     "/names $*"     }, { "t",     "/topic $*"     },
-	{ "w",     "/who $*"       }, { "wi",    "/whois $*"     },
-	{ "ww",    "/whowas $*"    },
-};
-
-static void
-load_default_aliases (struct app_context *ctx)
-{
-	struct str_map *aliases = get_aliases_config (ctx);
-	for (size_t i = 0; i < N_ELEMENTS (g_default_aliases); i++)
-	{
-		const char **pair = g_default_aliases[i];
-		str_map_set (aliases, pair[0], config_item_string_from_cstr (pair[1]));
-	}
-}
-
-static void
-load_configuration (struct app_context *ctx)
-{
-	// In theory, we could ensure that only one instance is running by locking
-	// the configuration file and ensuring here that it exists.  This is
-	// however brittle, as it may be unlinked without the application noticing.
-
-	struct config_item *root = NULL;
-	struct error *e = NULL;
-
-	char *filename = resolve_filename
-		(PROGRAM_NAME ".conf", resolve_relative_config_filename);
-	if (filename)
-		root = config_read_from_file (filename, &e);
-	else
-		log_global_error (ctx, "Configuration file not found");
-	free (filename);
-
-	if (e)
-	{
-		log_global_error (ctx, "Cannot load configuration: #s", e->message);
-		log_global_error (ctx,
-			"Please either fix the configuration file or remove it");
-		error_free (e);
-		exit (EXIT_FAILURE);
-	}
-
-	if (root)
-	{
-		config_load (&ctx->config, root);
-		log_global_status (ctx, "Configuration loaded");
-	}
-	else
-	{
-		show_first_time_help (ctx);
-		load_default_aliases (ctx);
-	}
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-load_servers (struct app_context *ctx)
-{
-	struct str_map_iter iter = str_map_iter_make (get_servers_config (ctx));
-
-	struct config_item *subtree;
-	while ((subtree = str_map_iter_next (&iter)))
-	{
-		const char *name = iter.link->key;
-		const char *err;
-		if (subtree->type != CONFIG_ITEM_OBJECT)
-			log_global_error (ctx, "Error in configuration: "
-				"ignoring server `#s' as it's not an object", name);
-		else if ((err = check_server_name_for_addition (ctx, name)))
-			log_global_error (ctx, "Cannot load server `#s': #s", name, err);
-		else
-			server_add (ctx, name, subtree);
-	}
-}
-
-// --- Signals -----------------------------------------------------------------
-
-static int g_signal_pipe[2];            ///< A pipe used to signal... signals
-
-/// Program termination has been requested by a signal
-static volatile sig_atomic_t g_termination_requested;
-/// The window has changed in size
-static volatile sig_atomic_t g_winch_received;
-
-static void
-postpone_signal_handling (char id)
-{
-	int original_errno = errno;
-	if (write (g_signal_pipe[1], &id, 1) == -1)
-		soft_assert (errno == EAGAIN);
-	errno = original_errno;
-}
-
-static void
-signal_superhandler (int signum)
-{
-	switch (signum)
-	{
-	case SIGWINCH:
-		g_winch_received = true;
-		postpone_signal_handling ('w');
-		break;
-	case SIGINT:
-	case SIGTERM:
-		g_termination_requested = true;
-		postpone_signal_handling ('t');
-		break;
-	case SIGCHLD:
-		postpone_signal_handling ('c');
-		break;
-	case SIGTSTP:
-		postpone_signal_handling ('s');
-		break;
-	default:
-		hard_assert (!"unhandled signal");
-	}
-}
-
-static void
-setup_signal_handlers (void)
-{
-	if (pipe (g_signal_pipe) == -1)
-		exit_fatal ("%s: %s", "pipe", strerror (errno));
-
-	set_cloexec (g_signal_pipe[0]);
-	set_cloexec (g_signal_pipe[1]);
-
-	// So that the pipe cannot overflow; it would make write() block within
-	// the signal handler, which is something we really don't want to happen.
-	// The same holds true for read().
-	set_blocking (g_signal_pipe[0], false);
-	set_blocking (g_signal_pipe[1], false);
-
-	signal (SIGPIPE, SIG_IGN);
-
-	// So that we can write to the terminal while we're running a backlog
-	// helper.  This is also inherited by the child so that it doesn't stop
-	// when it calls tcsetpgrp().
-	signal (SIGTTOU, SIG_IGN);
-
-	struct sigaction sa;
-	sa.sa_flags = SA_RESTART;
-	sa.sa_handler = signal_superhandler;
-	sigemptyset (&sa.sa_mask);
-
-	if (sigaction (SIGWINCH, &sa, NULL) == -1
-	 || sigaction (SIGINT,   &sa, NULL) == -1
-	 || sigaction (SIGTERM,  &sa, NULL) == -1
-	 || sigaction (SIGTSTP,  &sa, NULL) == -1
-	 || sigaction (SIGCHLD,  &sa, NULL) == -1)
-		exit_fatal ("sigaction: %s", strerror (errno));
-}
-
-// --- I/O event handlers ------------------------------------------------------
-
-static bool
-try_reap_child (struct app_context *ctx)
-{
-	int status;
-	pid_t zombie = waitpid (-1, &status, WNOHANG | WUNTRACED);
-
-	if (zombie == -1)
-	{
-		if (errno == ECHILD)  return false;
-		if (errno == EINTR)   return true;
-		exit_fatal ("%s: %s", "waitpid", strerror (errno));
-	}
-	if (!zombie)
-		return false;
-
-	if (WIFSTOPPED (status))
-	{
-		// We could also send SIGCONT but what's the point
-		print_debug ("a child has been stopped, killing its process group");
-		kill (-zombie, SIGKILL);
-		return true;
-	}
-
-	if (ctx->running_backlog_helper)
-		ctx->running_backlog_helper = false;
-	else if (!ctx->running_editor)
-	{
-		log_global_debug (ctx, "An unknown child has died");
-		return true;
-	}
-
-	hard_assert (tcsetpgrp (STDOUT_FILENO, getpgid (0)) != -1);
-	resume_terminal (ctx);
-
-	if (WIFSIGNALED (status))
-		log_global_error (ctx,
-			"Child died from signal #d", WTERMSIG (status));
-	else if (WIFEXITED (status) && WEXITSTATUS (status) != 0)
-		log_global_error (ctx,
-			"Child returned status #d", WEXITSTATUS (status));
-	else if (ctx->running_editor)
-		input_editor_process (ctx);
-
-	if (ctx->running_editor)
-		input_editor_cleanup (ctx);
-	return true;
-}
-
-static void
-on_signal_pipe_readable (const struct pollfd *fd, struct app_context *ctx)
-{
-	char id = 0;
-	(void) read (fd->fd, &id, 1);
-
-	// Stop ourselves cleanly, even if it makes little sense to do this
-	if (id == 's')
-	{
-		suspend_terminal (ctx);
-		kill (getpid (), SIGSTOP);
-		g_winch_received = true;
-		resume_terminal (ctx);
-	}
-
-	// Reap all dead children (since the signal pipe may overflow etc. we run
-	// waitpid() in a loop to return all the zombies it knows about).
-	while (try_reap_child (ctx))
-		;
-
-	if (g_termination_requested)
-	{
-		g_termination_requested = false;
-		request_quit (ctx, NULL);
-	}
-	if (g_winch_received)
-	{
-		g_winch_received = false;
-		redraw_screen (ctx);
-	}
-}
-
-static void
-process_mirc_escape (const struct pollfd *fd, struct app_context *ctx)
-{
-	// There's no other way with libedit, as both el_getc() in a function
-	// handler and CC_ARGHACK would block execution
-	struct str *buf = &ctx->input_buffer;
-	str_reserve (buf, 1);
-	if (read (fd->fd, buf->str + buf->len, 1) != 1)
-		goto error;
-	buf->str[++buf->len] = '\0';
-
-	// XXX: I think this should be global and shared with Readline/libedit
-	mbstate_t state;
-	memset (&state, 0, sizeof state);
-
-	size_t len = mbrlen (buf->str, buf->len, &state);
-
-	// Illegal sequence
-	if (len == (size_t) -1)
-		goto error;
-
-	// Incomplete multibyte character
-	if (len == (size_t) -2)
-		return;
-
-	if (buf->len != 1)
-		goto error;
-	switch (buf->str[0])
-	{
-	case 'b' ^ 96:
-	case 'b': CALL_ (ctx->input, insert, "\x02"); break;
-	case 'c': CALL_ (ctx->input, insert, "\x03"); break;
-	case 'i' ^ 96:
-	case 'i':
-	case ']': CALL_ (ctx->input, insert, "\x1d"); break;
-	case 'x' ^ 96:
-	case 'x':
-	case '^': CALL_ (ctx->input, insert, "\x1e"); break;
-	case 'u' ^ 96:
-	case 'u':
-	case '_': CALL_ (ctx->input, insert, "\x1f"); break;
-	case 'v': CALL_ (ctx->input, insert, "\x16"); break;
-	case 'o': CALL_ (ctx->input, insert, "\x0f"); break;
-
-	default:
-		goto error;
-	}
-	goto done;
-
-error:
-	CALL (ctx->input, ding);
-done:
-	str_reset (buf);
-	ctx->awaiting_mirc_escape = false;
-}
-
-#define BRACKETED_PASTE_LIMIT 102400    ///< How much text can be pasted
-
-static void
-process_bracketed_paste (const struct pollfd *fd, struct app_context *ctx)
-{
-	struct str *buf = &ctx->input_buffer;
-	str_reserve (buf, 1);
-	if (read (fd->fd, buf->str + buf->len, 1) != 1)
-		goto error;
-	buf->str[++buf->len] = '\0';
-
-	static const char stop_mark[] = "\x1b[201~";
-	static const size_t stop_mark_len = sizeof stop_mark - 1;
-	if (buf->len < stop_mark_len)
-		return;
-
-	size_t text_len = buf->len - stop_mark_len;
-	if (memcmp (buf->str + text_len, stop_mark, stop_mark_len))
-		return;
-
-	// Avoid endless flooding of the buffer
-	if (text_len > BRACKETED_PASTE_LIMIT)
-		log_global_error (ctx, "Paste trimmed to #d bytes",
-			(int) (text_len = BRACKETED_PASTE_LIMIT));
-
-	buf->str[text_len] = '\0';
-	if (CALL_ (ctx->input, insert, buf->str))
-		goto done;
-
-error:
-	CALL (ctx->input, ding);
-	log_global_error (ctx, "Paste failed");
-done:
-	str_reset (buf);
-	ctx->in_bracketed_paste = false;
-}
-
-static void
-reset_autoaway (struct app_context *ctx)
-{
-	// Stop the last one if it's been disabled altogether in the meantime
-	poller_timer_reset (&ctx->autoaway_tmr);
-
-	// Unset any automated statuses that are active right at this moment
-	struct str_map_iter iter = str_map_iter_make (&ctx->servers);
-	struct server *s;
-	while ((s = str_map_iter_next (&iter)))
-	{
-		if (s->autoaway_active
-		 && s->irc_user
-		 && s->irc_user->away)
-			irc_send (s, "AWAY");
-
-		s->autoaway_active = false;
-	}
-
-	// And potentially start a new auto-away timer
-	int64_t delay = get_config_integer
-		(ctx->config.root, "behaviour.autoaway_delay");
-	if (delay)
-		poller_timer_set (&ctx->autoaway_tmr, delay * 1000);
-}
-
-static void
-on_autoaway_timer (struct app_context *ctx)
-{
-	// An empty message would unset any away status, so let's ignore that
-	const char *message = get_config_string
-		(ctx->config.root, "behaviour.autoaway_message");
-	if (!message || !*message)
-		return;
-
-	struct str_map_iter iter = str_map_iter_make (&ctx->servers);
-	struct server *s;
-	while ((s = str_map_iter_next (&iter)))
-	{
-		// If the user has already been marked as away,
-		// don't override his current away status
-		if (s->irc_user
-		 && s->irc_user->away)
-			continue;
-
-		irc_send (s, "AWAY :%s", message);
-		s->autoaway_active = true;
-	}
-}
-
-static void
-on_tty_readable (const struct pollfd *fd, struct app_context *ctx)
-{
-	if (fd->revents & ~(POLLIN | POLLHUP | POLLERR))
-		print_debug ("fd %d: unexpected revents: %d", fd->fd, fd->revents);
-
-	if (ctx->awaiting_mirc_escape)
-		process_mirc_escape (fd, ctx);
-	else if (ctx->in_bracketed_paste)
-		process_bracketed_paste (fd, ctx);
-	else if (!ctx->quitting)
-		CALL (ctx->input, on_tty_readable);
-
-	// User activity detected, stop current auto-away and start anew;
-	// since they might have just changed the settings, do this last
-	reset_autoaway (ctx);
-}
-
-static void
-rearm_flush_timer (struct app_context *ctx)
-{
-	poller_timer_set (&ctx->flush_timer, 60 * 1000);
-}
-
-static void
-on_flush_timer (struct app_context *ctx)
-{
-	// I guess we don't need to do anything more complicated
-	fflush (NULL);
-
-	// It would be a bit problematic to handle it properly, so do this at least
-	LIST_FOR_EACH (struct buffer, buffer, ctx->buffers)
-	{
-		if (!buffer->log_file || !ferror (buffer->log_file))
-			continue;
-
-		// Might be a transient error such as running out of disk space,
-		// keep notifying of the problem until it disappears
-		clearerr (buffer->log_file);
-		log_global (ctx, BUFFER_LINE_ERROR | BUFFER_LINE_SKIP_FILE,
-			"Log write failure detected for #s", buffer->name);
-	}
-
-#ifdef LOMEM
-	// Lua should normally be reasonable and collect garbage when needed,
-	// though we can try to push it.  This is a reasonable place.
-	LIST_FOR_EACH (struct plugin, iter, ctx->plugins)
-		if (iter->vtable->gc)
-			iter->vtable->gc (iter);
-#endif // LOMEM
-
-	rearm_flush_timer (ctx);
-}
-
-static void
-rearm_date_change_timer (struct app_context *ctx)
-{
-	struct tm tm_;
-	const time_t now = time (NULL);
-	if (!soft_assert (localtime_r (&now, &tm_)))
-		return;
-
-	tm_.tm_sec = tm_.tm_min = tm_.tm_hour = 0;
-	tm_.tm_mday++;
-	tm_.tm_isdst = -1;
-
-	const time_t midnight = mktime (&tm_);
-	if (!soft_assert (midnight != (time_t) -1))
-		return;
-	poller_timer_set (&ctx->date_chg_tmr, (midnight - now) * 1000);
-}
-
-static void
-on_date_change_timer (struct app_context *ctx)
-{
-	if (ctx->terminal_suspended <= 0)
-	{
-		CALL (ctx->input, hide);
-		buffer_update_time (ctx, time (NULL), stdout, 0);
-		CALL (ctx->input, show);
-	}
-	rearm_date_change_timer (ctx);
-}
-
-static void
-on_pending_input (struct app_context *ctx)
-{
-	poller_idle_reset (&ctx->input_event);
-	for (size_t i = 0; i < ctx->pending_input.len; i++)
-		process_input (ctx, ctx->pending_input.vector[i]);
-	strv_reset (&ctx->pending_input);
-}
-
-static void
-init_poller_events (struct app_context *ctx)
-{
-	ctx->signal_event = poller_fd_make (&ctx->poller, g_signal_pipe[0]);
-	ctx->signal_event.dispatcher = (poller_fd_fn) on_signal_pipe_readable;
-	ctx->signal_event.user_data = ctx;
-	poller_fd_set (&ctx->signal_event, POLLIN);
-
-	ctx->tty_event = poller_fd_make (&ctx->poller, STDIN_FILENO);
-	ctx->tty_event.dispatcher = (poller_fd_fn) on_tty_readable;
-	ctx->tty_event.user_data = ctx;
-	poller_fd_set (&ctx->tty_event, POLLIN);
-
-	ctx->flush_timer = poller_timer_make (&ctx->poller);
-	ctx->flush_timer.dispatcher = (poller_timer_fn) on_flush_timer;
-	ctx->flush_timer.user_data = ctx;
-	rearm_flush_timer (ctx);
-
-	ctx->date_chg_tmr = poller_timer_make (&ctx->poller);
-	ctx->date_chg_tmr.dispatcher = (poller_timer_fn) on_date_change_timer;
-	ctx->date_chg_tmr.user_data = ctx;
-	rearm_date_change_timer (ctx);
-
-	ctx->autoaway_tmr = poller_timer_make (&ctx->poller);
-	ctx->autoaway_tmr.dispatcher = (poller_timer_fn) on_autoaway_timer;
-	ctx->autoaway_tmr.user_data = ctx;
-
-	ctx->prompt_event = poller_idle_make (&ctx->poller);
-	ctx->prompt_event.dispatcher = (poller_idle_fn) on_refresh_prompt;
-	ctx->prompt_event.user_data = ctx;
-
-	ctx->input_event = poller_idle_make (&ctx->poller);
-	ctx->input_event.dispatcher = (poller_idle_fn) on_pending_input;
-	ctx->input_event.user_data = ctx;
-}
-
-// --- Tests -------------------------------------------------------------------
-
-// The application is quite monolithic and can only be partially unit-tested.
-// Locale-, terminal- and filesystem-dependent tests are also somewhat tricky.
-
-#ifdef TESTING
-
-static struct config_schema g_config_test[] =
-{
-	{ .name = "foo",    .type = CONFIG_ITEM_BOOLEAN, .default_ = "off" },
-	{ .name = "bar",    .type = CONFIG_ITEM_INTEGER, .default_ = "1" },
-	{ .name = "foobar", .type = CONFIG_ITEM_STRING,  .default_ = "\"x\\x01\"" },
-	{}
-};
-
-static void
-test_config (void)
-{
-	struct config_item *foo = config_item_object ();
-	config_schema_apply_to_object (g_config_test, foo, NULL);
-	struct config_item *root = config_item_object ();
-	str_map_set (&root->value.object, "top", foo);
-
-	struct strv v = strv_make ();
-	dump_matching_options (root, "*foo*", &v);
-	hard_assert (v.len == 2);
-	hard_assert (!strcmp (v.vector[0], "top.foo = off"));
-	hard_assert (!strcmp (v.vector[1], "top.foobar = \"x\\x01\""));
-	strv_free (&v);
-
-	config_item_destroy (root);
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
-static void
-test_aliases (void)
-{
-	struct strv v = strv_make ();
-	expand_alias_definition ("/foo; /bar $* $$$;;;$1$2$3$4", "foo bar baz", &v);
-	hard_assert (v.len == 4);
-	hard_assert (!strcmp (v.vector[0], "/foo"));
-	hard_assert (!strcmp (v.vector[1], " /bar foo bar baz $;"));
-	hard_assert (!strcmp (v.vector[2], ""));
-	hard_assert (!strcmp (v.vector[3], "foobarbaz"));
-	strv_free (&v);
-}
-
-static void
-test_wrapping (void)
-{
-	static const char *message = " foo bar foobar fóóbárbáz";
-	static const char *split[] =
-		{ " foo", "bar", "foob", "ar", "fó", "ób", "árb", "áz" };
-
-	struct strv v = strv_make ();
-	hard_assert (wrap_message (message, 4, &v, NULL));
-	hard_assert (v.len == N_ELEMENTS (split));
-	for (size_t i = 0; i < N_ELEMENTS (split); i++)
-		hard_assert (!strcmp (v.vector[i], split[i]));
-	strv_free (&v);
-}
-
-static void
-test_utf8 (void)
-{
-	static const char *a[] = { "fřoo", "Fřooř", "fřOOŘ" };
-	hard_assert (utf8_common_prefix (a, N_ELEMENTS (a)) == 5);
-
-	char *cut_off = xstrdup ("ё\xD0");
-	irc_sanitize_cut_off_utf8 (&cut_off);
-	hard_assert (!strcmp (cut_off, "ё\xEF\xBF\xBD"));
-	free (cut_off);
-}
-
-int
-main (int argc, char *argv[])
-{
-	struct test test;
-	test_init (&test, argc, argv);
-	test_add_simple (&test, "/config",   NULL, test_config);
-	test_add_simple (&test, "/aliases",  NULL, test_aliases);
-	test_add_simple (&test, "/wrapping", NULL, test_wrapping);
-	test_add_simple (&test, "/utf8",     NULL, test_utf8);
-	return test_run (&test);
-}
-
-#define main main_shadowed
-#endif // TESTING
-
-// --- Main program ------------------------------------------------------------
-
-static const char *g_logo[] =
-{
-	"     __                    __   ",
-	"  __/ /___________________/ /   ",
-	" /   / , /   / , / __/ __/ _ \\  ",
-	"/ / / __/ / / __/_  / /_/ // /  ",
-	"\\__/\\__/_  /\\__/___/\\__/_//_/   " PROGRAM_VERSION,
-	"      /___/",
-	""
-};
-
-static void
-show_logo (struct app_context *ctx)
-{
-	for (size_t i = 0; i < N_ELEMENTS (g_logo); i++)
-		log_global_indent (ctx, "#m", g_logo[i]);
-}
-
-static void
-format_input_and_die (struct app_context *ctx)
-{
-	char buf[513];
-	while (fgets (buf, sizeof buf, stdin))
-	{
-		struct formatter f = formatter_make (ctx, NULL);
-		formatter_add (&f, "#m", buf);
-		formatter_flush (&f, stdout, FLUSH_OPT_NOWRAP);
-		formatter_free (&f);
-	}
-	exit (EXIT_SUCCESS);
-}
-
-int
-main (int argc, char *argv[])
-{
-	// We include a generated file from kike including this array we don't use;
-	// let's just keep it there and silence the compiler warning instead
-	(void) g_default_replies;
-
-	static const struct opt opts[] =
-	{
-		{ 'h', "help", NULL, 0, "display this help and exit" },
-		{ 'V', "version", NULL, 0, "output version information and exit" },
-		// This is mostly intended for previewing formatted MOTD files
-		{ 'f', "format", NULL, OPT_LONG_ONLY, "format IRC text from stdin" },
-		{ 0, NULL, NULL, 0, NULL }
-	};
-
-	struct opt_handler oh =
-		opt_handler_make (argc, argv, opts, NULL, "Terminal-based IRC client.");
-	bool format_mode = false;
-
-	int c;
-	while ((c = opt_handler_get (&oh)) != -1)
-	switch (c)
-	{
-	case 'h':
-		opt_handler_usage (&oh, stdout);
-		exit (EXIT_SUCCESS);
-	case 'V':
-		printf (PROGRAM_NAME " " PROGRAM_VERSION "\n");
-		exit (EXIT_SUCCESS);
-	case 'f':
-		format_mode = true;
-		break;
-	default:
-		print_error ("wrong options");
-		opt_handler_usage (&oh, stderr);
-		exit (EXIT_FAILURE);
-	}
-	if (optind != argc)
-	{
-		opt_handler_usage (&oh, stderr);
-		exit (EXIT_FAILURE);
-	}
-	opt_handler_free (&oh);
-
-	// We only need to convert to and from the terminal encoding
-	setlocale (LC_CTYPE, "");
-
-	struct app_context ctx;
-	app_context_init (&ctx);
-	g_ctx = &ctx;
-
-	init_openssl ();
-
-	// Bootstrap configuration, so that we can access schema items at all
-	register_config_modules (&ctx);
-	config_load (&ctx.config, config_item_object ());
-
-	// The following part is a bit brittle because of interdependencies
-	init_colors (&ctx);
-	if (format_mode)  format_input_and_die (&ctx);
-	init_global_buffer (&ctx);
-	show_logo (&ctx);
-	setup_signal_handlers ();
-	init_poller_events (&ctx);
-	load_configuration (&ctx);
-
-	// At this moment we can safely call any "on_change" callbacks
-	config_schema_call_changed (ctx.config.root);
-
-	// Initialize input so that we can switch to new buffers
-	on_refresh_prompt (&ctx);
-	ctx.input->add_functions = input_add_functions;
-	CALL_ (ctx.input, start, argv[0]);
-	toggle_bracketed_paste (true);
-	reset_autoaway (&ctx);
-
-	// Finally, we juice the configuration for some servers to create
-	load_plugins (&ctx);
-	load_servers (&ctx);
-
-	ctx.polling = true;
-	while (ctx.polling)
-		poller_run (&ctx.poller);
-
-	CALL (ctx.input, stop);
-
-	if (get_config_boolean (ctx.config.root, "behaviour.save_on_quit"))
-		save_configuration (&ctx);
-
-	app_context_free (&ctx);
-	toggle_bracketed_paste (false);
-	free_terminal ();
-	return EXIT_SUCCESS;
-}