kike: implement the ISON command

1 files changed, 23 insertions, 0 deletions

diff --git a/src/kike.c b/src/kike.c
index 020e8c3..82b3385 100644
--- a/src/kike.c
+++ b/src/kike.c
@@ -808,6 +808,7 @@ enum
 
 	IRC_RPL_AWAY                  = 301,
 	IRC_RPL_USERHOST              = 302,
+	IRC_RPL_ISON                  = 303,
 	IRC_RPL_UNAWAY                = 305,
 	IRC_RPL_NOWAWAY               = 306,
 	IRC_RPL_ENDOFWHO              = 315,
@@ -876,6 +877,7 @@ static const char *g_default_replies[] =
 
 	[IRC_RPL_AWAY] = "%s :%s",
 	[IRC_RPL_USERHOST] = ":%s",
+	[IRC_RPL_ISON] = ":%s",
 	[IRC_RPL_UNAWAY] = ":You are no longer marked as being away",
 	[IRC_RPL_NOWAWAY] = ":You have been marked as being away",
 	[IRC_RPL_ENDOFWHO] = "%s :End of WHO list",
@@ -1837,6 +1839,26 @@ irc_handle_away (const struct irc_message *msg, struct client *c)
 	}
 }
 
+static void
+irc_handle_ison (const struct irc_message *msg, struct client *c)
+{
+	if (msg->params.len < 1)
+		RETURN_WITH_REPLY (c, IRC_ERR_NEEDMOREPARAMS, msg->command);
+
+	struct str result;
+	str_init (&result);
+
+	const char *nick;
+	if (str_map_find (&c->ctx->users, (nick = msg->params.vector[0])))
+		str_append (&result, nick);
+	for (size_t i = 1; i < msg->params.len; i++)
+		if (str_map_find (&c->ctx->users, (nick = msg->params.vector[i])))
+			str_append_printf (&result, " %s", nick);
+
+	irc_send_reply (c, IRC_RPL_ISON, result.str);
+	str_free (&result);
+}
+
 // -----------------------------------------------------------------------------
 
 struct irc_command
@@ -1879,6 +1901,7 @@ irc_register_handlers (struct server_context *ctx)
 		{ "LIST",     true,  irc_handle_list     },
 		{ "NAMES",    true,  irc_handle_names    },
 		{ "WHO",      true,  irc_handle_who      },
+		{ "ISON",     true,  irc_handle_ison     },
 	};
 
 	for (size_t i = 0; i < N_ELEMENTS (message_handlers); i++)