diff options
Diffstat (limited to 'common.c')
| -rw-r--r-- | common.c | 171 |
1 files changed, 1 insertions, 170 deletions
@@ -20,6 +20,7 @@ #define LIBERTY_WANT_SSL #define LIBERTY_WANT_POLLER +#define LIBERTY_WANT_PROTO_IRC #define print_fatal_data ((void *) LOG_ERR) #define print_error_data ((void *) LOG_ERR) @@ -48,173 +49,3 @@ log_message_syslog (void *user_data, const char *quote, const char *fmt, if (vsnprintf (buf, sizeof buf, fmt, ap) >= 0) syslog (prio, "%s%s", quote, buf); } - -// --- IRC utilities ----------------------------------------------------------- - -struct irc_message -{ - struct str_map tags; ///< IRC 3.2 message tags - char *prefix; ///< Message prefix - char *command; ///< IRC command - struct str_vector params; ///< Command parameters -}; - -static void -irc_parse_message_tags (const char *tags, struct str_map *out) -{ - struct str_vector v; - str_vector_init (&v); - split_str_ignore_empty (tags, ';', &v); - - for (size_t i = 0; i < v.len; i++) - { - char *key = v.vector[i], *equal_sign = strchr (key, '='); - if (equal_sign) - { - *equal_sign = '\0'; - str_map_set (out, key, xstrdup (equal_sign + 1)); - } - else - str_map_set (out, key, xstrdup ("")); - } - - str_vector_free (&v); -} - -static void -irc_parse_message (struct irc_message *msg, const char *line) -{ - str_map_init (&msg->tags); - msg->tags.free = free; - - msg->prefix = NULL; - msg->command = NULL; - str_vector_init (&msg->params); - - // IRC 3.2 message tags - if (*line == '@') - { - size_t tags_len = strcspn (++line, " "); - char *tags = xstrndup (line, tags_len); - irc_parse_message_tags (tags, &msg->tags); - free (tags); - - line += tags_len; - while (*line == ' ') - line++; - } - - // Prefix - if (*line == ':') - { - size_t prefix_len = strcspn (++line, " "); - msg->prefix = xstrndup (line, prefix_len); - line += prefix_len; - } - - // Command name - { - while (*line == ' ') - line++; - - size_t cmd_len = strcspn (line, " "); - msg->command = xstrndup (line, cmd_len); - line += cmd_len; - } - - // Arguments - while (true) - { - while (*line == ' ') - line++; - - if (*line == ':') - { - str_vector_add (&msg->params, ++line); - break; - } - - size_t param_len = strcspn (line, " "); - if (!param_len) - break; - - str_vector_add_owned (&msg->params, xstrndup (line, param_len)); - line += param_len; - } -} - -static void -irc_free_message (struct irc_message *msg) -{ - str_map_free (&msg->tags); - free (msg->prefix); - free (msg->command); - str_vector_free (&msg->params); -} - -static void -irc_process_buffer (struct str *buf, - void (*callback)(const struct irc_message *, const char *, void *), - void *user_data) -{ - char *start = buf->str, *end = start + buf->len; - for (char *p = start; p + 1 < end; p++) - { - // Split the input on newlines - if (p[0] != '\r' || p[1] != '\n') - continue; - - *p = 0; - - struct irc_message msg; - irc_parse_message (&msg, start); - callback (&msg, start, user_data); - irc_free_message (&msg); - - start = p + 2; - } - - // XXX: we might want to just advance some kind of an offset to avoid - // moving memory around unnecessarily. - str_remove_slice (buf, 0, start - buf->str); -} - -static int -irc_tolower (int c) -{ - if (c == '[') return '{'; - if (c == ']') return '}'; - if (c == '\\') return '|'; - if (c == '~') return '^'; - return c >= 'A' && c <= 'Z' ? c + ('a' - 'A') : c; -} - -static size_t -irc_strxfrm (char *dest, const char *src, size_t n) -{ - size_t len = strlen (src); - while (n-- && (*dest++ = irc_tolower (*src++))) - ; - return len; -} - -static int -irc_strcmp (const char *a, const char *b) -{ - int x; - while (*a || *b) - if ((x = irc_tolower (*a++) - irc_tolower (*b++))) - return x; - return 0; -} - -static int -irc_fnmatch (const char *pattern, const char *string) -{ - size_t pattern_size = strlen (pattern) + 1; - size_t string_size = strlen (string) + 1; - char x_pattern[pattern_size], x_string[string_size]; - irc_strxfrm (x_pattern, pattern, pattern_size); - irc_strxfrm (x_string, string, string_size); - return fnmatch (x_pattern, x_string, 0); -} |