Merge pull request #248 from LemonBoy/chantypes

Implement CHANTYPES support

25 files changed, 122 insertions, 91 deletions

diff --git a/src/core/servers.h b/src/core/servers.h
index d6afbdf5..f39c650b 100644
--- a/src/core/servers.h
+++ b/src/core/servers.h
@@ -18,7 +18,7 @@
 	(SERVER_CONNECT(conn) ? TRUE : FALSE)
 
 #define server_ischannel(server, channel) \
-        (server)->ischannel(server, channel)
+	((server)->ischannel(server, channel))
 
 /* all strings should be either NULL or dynamically allocated */
 /* address and nick are mandatory, rest are optional */
diff --git a/src/fe-common/irc/dcc/fe-dcc-chat.c b/src/fe-common/irc/dcc/fe-dcc-chat.c
index e2706ba3..5bcb3475 100644
--- a/src/fe-common/irc/dcc/fe-dcc-chat.c
+++ b/src/fe-common/irc/dcc/fe-dcc-chat.c
@@ -44,7 +44,7 @@ static void dcc_request(CHAT_DCC_REC *dcc)
         if (!IS_DCC_CHAT(dcc)) return;
 
 	printformat(dcc->server, NULL, MSGLEVEL_DCC,
-		    ischannel(*dcc->target) ? IRCTXT_DCC_CHAT_CHANNEL :
+		    server_ischannel(SERVER(dcc->server), dcc->target) ? IRCTXT_DCC_CHAT_CHANNEL :
 		    IRCTXT_DCC_CHAT, dcc->id, dcc->addrstr,
 		    dcc->port, dcc->target);
 }
diff --git a/src/fe-common/irc/dcc/fe-dcc-get.c b/src/fe-common/irc/dcc/fe-dcc-get.c
index 451463f9..675cab65 100644
--- a/src/fe-common/irc/dcc/fe-dcc-get.c
+++ b/src/fe-common/irc/dcc/fe-dcc-get.c
@@ -21,6 +21,7 @@
 #include "module.h"
 #include "signals.h"
 #include "levels.h"
+#include "servers.h"
 
 #include "irc.h"
 #include "dcc-file.h"
@@ -35,12 +36,12 @@ static void dcc_request(GET_DCC_REC *dcc)
 {
 	char *sizestr;
 
-        if (!IS_DCC_GET(dcc)) return;
+	if (!IS_DCC_GET(dcc)) return;
 
 	sizestr = dcc_get_size_str(dcc->size);
 
 	printformat(dcc->server, NULL, MSGLEVEL_DCC,
-		    ischannel(*dcc->target) ? IRCTXT_DCC_SEND_CHANNEL :
+		    server_ischannel(SERVER(dcc->server), dcc->target) ? IRCTXT_DCC_SEND_CHANNEL :
 		    IRCTXT_DCC_SEND, dcc->nick, dcc->addrstr,
 		    dcc->port, dcc->arg, sizestr, dcc->target);
 
diff --git a/src/fe-common/irc/fe-common-irc.c b/src/fe-common/irc/fe-common-irc.c
index 72606263..d6ab30ce 100644
--- a/src/fe-common/irc/fe-common-irc.c
+++ b/src/fe-common/irc/fe-common-irc.c
@@ -28,13 +28,11 @@
 
 #include "themes.h"
 #include "fe-irc-server.h"
+#include "fe-irc-channels.h"
 
 void fe_irc_modules_init(void);
 void fe_irc_modules_deinit(void);
 
-void fe_irc_channels_init(void);
-void fe_irc_channels_deinit(void);
-
 void fe_irc_queries_init(void);
 void fe_irc_queries_deinit(void);
 
diff --git a/src/fe-common/irc/fe-ctcp.c b/src/fe-common/irc/fe-ctcp.c
index 2321bb7a..cbb591ba 100644
--- a/src/fe-common/irc/fe-ctcp.c
+++ b/src/fe-common/irc/fe-ctcp.c
@@ -49,7 +49,7 @@ static void ctcp_default_msg(IRC_SERVER_REC *server, const char *data,
                 data = p+1;
 	}
 
-	printformat(server, ischannel(*target) ? target : nick, MSGLEVEL_CTCPS,
+	printformat(server, server_ischannel(SERVER(server), target) ? target : nick, MSGLEVEL_CTCPS,
 		    IRCTXT_CTCP_REQUESTED_UNKNOWN,
 		    nick, addr, cmd, data, target);
         g_free(cmd);
@@ -113,8 +113,8 @@ static void ctcp_default_reply(IRC_SERVER_REC *server, const char *data,
 		ctcpdata = ptr+1;
 	}
 
-	printformat(server, ischannel(*target) ? target : nick, MSGLEVEL_CTCPS,
-		    ischannel(*target) ? IRCTXT_CTCP_REPLY_CHANNEL :
+	printformat(server, server_ischannel(SERVER(server), target) ? target : nick, MSGLEVEL_CTCPS,
+		    server_ischannel(SERVER(server), target) ? IRCTXT_CTCP_REPLY_CHANNEL :
 		    IRCTXT_CTCP_REPLY, ctcp, nick, ctcpdata, target);
 	g_free(ctcp);
 }
@@ -137,7 +137,7 @@ static void ctcp_ping_reply(IRC_SERVER_REC *server, const char *data,
 
         g_get_current_time(&tv);
 	usecs = get_timeval_diff(&tv, &tv2);
-        printformat(server, ischannel(*target) ? target : nick, MSGLEVEL_CTCPS,
+        printformat(server, server_ischannel(SERVER(server), target) ? target : nick, MSGLEVEL_CTCPS,
                     IRCTXT_CTCP_PING_REPLY, nick, usecs/1000, usecs%1000);
 }
 
diff --git a/src/fe-common/irc/fe-events-numeric.c b/src/fe-common/irc/fe-events-numeric.c
index ec7669ab..3eb124fc 100644
--- a/src/fe-common/irc/fe-events-numeric.c
+++ b/src/fe-common/irc/fe-events-numeric.c
@@ -400,7 +400,7 @@ static void event_target_unavailable(IRC_SERVER_REC *server, const char *data,
 	g_return_if_fail(data != NULL);
 
 	params = event_get_params(data, 2, NULL, &target);
-	if (!ischannel(*target)) {
+	if (!server_ischannel(SERVER(server), target)) {
 		/* nick unavailable */
 		printformat(server, NULL, MSGLEVEL_CRAP,
 			    IRCTXT_NICK_UNAVAILABLE, target);
@@ -583,7 +583,7 @@ static void print_event_received(IRC_SERVER_REC *server, const char *data,
 		return;
 	ptr++;
 
-	if (ischannel(*data)) /* directed at channel */
+	if (server_ischannel(SERVER(server), data)) /* directed at channel */
 		target = g_strndup(data, (int)(ptr - data - 1));
 	else if (!target_param || *ptr == ':' || (ptr2 = strchr(ptr, ' ')) == NULL)
 		target = NULL;
diff --git a/src/fe-common/irc/fe-events.c b/src/fe-common/irc/fe-events.c
index 5cde9e4b..068ee543 100644
--- a/src/fe-common/irc/fe-events.c
+++ b/src/fe-common/irc/fe-events.c
@@ -52,15 +52,17 @@ static void event_privmsg(IRC_SERVER_REC *server, const char *data,
 	params = event_get_params(data, 2 | PARAM_FLAG_GETREST, &target, &msg);
 	if (nick == NULL) nick = server->real_address;
 	if (addr == NULL) addr = "";
-	if (*target == '@' && ischannel(target[1])) {
+
+	if (fe_channel_is_opchannel(server, target)) {
 		/* Hybrid 6 feature, send msg to all ops in channel */
-		recoded = recode_in(SERVER(server), msg, target+1);
+		target = (char *)fe_channel_skip_prefix(server, target);
+		recoded = recode_in(SERVER(server), msg, target);
 		signal_emit("message irc op_public", 5,
 			    server, recoded, nick, addr,
-			    get_visible_target(server, target+1));
+			    get_visible_target(server, target));
 	} else {
-		recoded = recode_in(SERVER(server), msg, ischannel(*target) ? target : nick);
-		signal_emit(ischannel(*target) ?
+		recoded = recode_in(SERVER(server), msg, server_ischannel(SERVER(server), target) ? target : nick);
+		signal_emit(server_ischannel(SERVER(server), target) ?
 			    "message public" : "message private", 5,
 			    server, recoded, nick, addr,
 			    get_visible_target(server, target));
diff --git a/src/fe-common/irc/fe-irc-channels.c b/src/fe-common/irc/fe-irc-channels.c
index e884aef4..d5f17bd0 100644
--- a/src/fe-common/irc/fe-irc-channels.c
+++ b/src/fe-common/irc/fe-irc-channels.c
@@ -31,6 +31,51 @@
 #include "fe-windows.h"
 #include "window-items.h"
 
+int fe_channel_is_opchannel(IRC_SERVER_REC *server, const char *target)
+{
+	const char *statusmsg;
+
+	/* Quick check */
+	if (server == NULL || server->prefix[(int)(unsigned char)*target] == 0)
+		return FALSE;
+
+	statusmsg = g_hash_table_lookup(server->isupport, "statusmsg");
+	if (statusmsg == NULL)
+		statusmsg = "@+";
+
+	return strchr(statusmsg, *target) != NULL;
+}
+
+const char *fe_channel_skip_prefix(IRC_SERVER_REC *server, const char *target)
+{
+	const char *statusmsg;
+
+	/* Quick check */
+	if (server == NULL || server->prefix[(int)(unsigned char)*target] == 0)
+		return target;
+
+	/* Exit early if target doesn't name a channel */
+	if (server_ischannel(SERVER(server), target) == FALSE)
+		return FALSE;
+
+	statusmsg = g_hash_table_lookup(server->isupport, "statusmsg");
+
+	/* Hack: for bahamut 1.4 which sends neither STATUSMSG nor
+	 * WALLCHOPS in 005, accept @#chan and @+#chan (but not +#chan) */
+	if (statusmsg == NULL && *target != '@')
+		return target;
+
+	if (statusmsg == NULL)
+		statusmsg = "@+";
+
+	/* Strip the leading statusmsg prefixes */
+	while (strchr(statusmsg, *target) != NULL) {
+		target++;
+	}
+
+	return target;
+}
+
 static void sig_channel_rejoin(SERVER_REC *server, REJOIN_REC *rec)
 {
 	g_return_if_fail(rec != NULL);
@@ -46,7 +91,7 @@ static void sig_event_forward(SERVER_REC *server, const char *data,
 	char *params, *from, *to;
 
 	params = event_get_params(data, 3, NULL, &from, &to);
-	if (from != NULL && to != NULL && ischannel(*from) && ischannel(*to)) {
+	if (from != NULL && to != NULL && server_ischannel(server, from) && server_ischannel(server, to)) {
 		channel = irc_channel_find(server, from);
 		if (channel != NULL && irc_channel_find(server, to) == NULL) {
 			window_bind_add(window_item_window(channel),
diff --git a/src/fe-common/irc/fe-irc-channels.h b/src/fe-common/irc/fe-irc-channels.h
new file mode 100644
index 00000000..d05c91a5
--- /dev/null
+++ b/src/fe-common/irc/fe-irc-channels.h
@@ -0,0 +1,10 @@
+#ifndef __FE_IRC_CHANNELS_H
+#define __FE_IRC_CHANNELS_H
+
+int fe_channel_is_opchannel(IRC_SERVER_REC *server, const char *target);
+const char *fe_channel_skip_prefix(IRC_SERVER_REC *server, const char *target);
+
+void fe_irc_channels_init(void);
+void fe_irc_channels_deinit(void);
+
+#endif
diff --git a/src/fe-common/irc/fe-irc-messages.c b/src/fe-common/irc/fe-irc-messages.c
index 94d1ad4a..b2736a2c 100644
--- a/src/fe-common/irc/fe-irc-messages.c
+++ b/src/fe-common/irc/fe-irc-messages.c
@@ -37,32 +37,6 @@
 #include "fe-queries.h"
 #include "window-items.h"
 
-static const char *skip_target(IRC_SERVER_REC *server, const char *target)
-{
-	int i = 0;
-	const char *val, *chars;
-
-	/* Quick check */
-	if (server == NULL || server->prefix[(int)(unsigned char)*target] == 0)
-		return target;
-
-	/* Hack: for bahamut 1.4 which sends neither STATUSMSG nor
-	 * WALLCHOPS in 005, accept @#chan and @+#chan (but not +#chan) */
-	val = g_hash_table_lookup(server->isupport, "STATUSMSG");
-	if (val == NULL && *target != '@')
-		return target;
-	chars = val ? val : "@+";
-	for(i = 0; target[i] != '\0'; i++) {
-		if (strchr(chars, target[i]) == NULL)
-			break;
-	};
-
-	if(ischannel(target[i]))
-		target += i;
-
-	return target;
-}
-
 static void sig_message_own_public(SERVER_REC *server, const char *msg,
 				   const char *target, const char *origtarget)
 {
@@ -72,7 +46,7 @@ static void sig_message_own_public(SERVER_REC *server, const char *msg,
 	if (!IS_IRC_SERVER(server))
 		return;
 	oldtarget = target;
-	target = skip_target(IRC_SERVER(server), target);
+	target = fe_channel_skip_prefix(IRC_SERVER(server), target);
 	if (target != oldtarget) {
 		/* Hybrid 6 / Bahamut feature, send msg to all
 		   ops / ops+voices in channel */
@@ -135,8 +109,8 @@ static void sig_message_own_action(IRC_SERVER_REC *server, const char *msg,
         char *freemsg = NULL;
 
 	oldtarget = target;
-	target = skip_target(IRC_SERVER(server), target);
-        if (ischannel(*target))
+	target = fe_channel_skip_prefix(IRC_SERVER(server), target);
+	if (server_ischannel(SERVER(server), target))
 		item = irc_channel_find(server, target);
 	else
 		item = irc_query_find(server, target);
@@ -146,7 +120,7 @@ static void sig_message_own_action(IRC_SERVER_REC *server, const char *msg,
 
 	printformat(server, target,
 		    MSGLEVEL_ACTIONS | MSGLEVEL_NOHILIGHT | MSGLEVEL_NO_ACT |
-		    (ischannel(*target) ? MSGLEVEL_PUBLIC : MSGLEVEL_MSGS),
+		    (server_ischannel(SERVER(server), target) ? MSGLEVEL_PUBLIC : MSGLEVEL_MSGS),
 		    item != NULL && oldtarget == target ? IRCTXT_OWN_ACTION : IRCTXT_OWN_ACTION_TARGET,
 		    server->nick, msg, oldtarget);
         g_free_not_null(freemsg);
@@ -163,10 +137,10 @@ static void sig_message_irc_action(IRC_SERVER_REC *server, const char *msg,
 	int own = FALSE;
 
 	oldtarget = target;
-	target = skip_target(IRC_SERVER(server), target);
+	target = fe_channel_skip_prefix(IRC_SERVER(server), target);
 
 	level = MSGLEVEL_ACTIONS |
-		(ischannel(*target) ? MSGLEVEL_PUBLIC : MSGLEVEL_MSGS);
+		(server_ischannel(SERVER(server), target) ? MSGLEVEL_PUBLIC : MSGLEVEL_MSGS);
 
 	if (ignore_check(SERVER(server), nick, address, target, msg, level))
 		return;
@@ -175,7 +149,7 @@ static void sig_message_irc_action(IRC_SERVER_REC *server, const char *msg,
 			 level | MSGLEVEL_NO_ACT))
 		level |= MSGLEVEL_NO_ACT;
 
-	if (ischannel(*target)) {
+	if (server_ischannel(SERVER(server), target)) {
 		item = irc_channel_find(server, target);
 	} else {
 		own = (!g_strcmp0(nick, server->nick));
@@ -185,7 +159,7 @@ static void sig_message_irc_action(IRC_SERVER_REC *server, const char *msg,
 	if (settings_get_bool("emphasis"))
 		msg = freemsg = expand_emphasis(item, msg);
 
-	if (ischannel(*target)) {
+	if (server_ischannel(SERVER(server), target)) {
 		/* channel action */
 		if (window_item_is_active(item) && target == oldtarget) {
 			/* message to active channel in window */
@@ -219,7 +193,7 @@ static void sig_message_irc_action(IRC_SERVER_REC *server, const char *msg,
 static void sig_message_own_notice(IRC_SERVER_REC *server, const char *msg,
 				   const char *target)
 {
-	printformat(server, skip_target(server, target), MSGLEVEL_NOTICES |
+	printformat(server, fe_channel_skip_prefix(server, target), MSGLEVEL_NOTICES |
 		    MSGLEVEL_NOHILIGHT | MSGLEVEL_NO_ACT,
 		    IRCTXT_OWN_NOTICE, target, msg);
 }
@@ -232,7 +206,7 @@ static void sig_message_irc_notice(SERVER_REC *server, const char *msg,
 	int level = MSGLEVEL_NOTICES;
 
 	oldtarget = target;
-	target = skip_target(IRC_SERVER(server), target);
+	target = fe_channel_skip_prefix(IRC_SERVER(server), target);
 
 	if (address == NULL || *address == '\0') {
 		/* notice from server */
@@ -245,16 +219,16 @@ static void sig_message_irc_notice(SERVER_REC *server, const char *msg,
 	}
 
 	if (ignore_check(server, nick, address,
-			 ischannel(*target) ? target : NULL,
+			 server_ischannel(SERVER(server), target) ? target : NULL,
 			 msg, level))
 		return;
 
 	if (ignore_check(server, nick, address,
-			 ischannel(*target) ? target : NULL,
+			 server_ischannel(SERVER(server), target) ? target : NULL,
 			 msg, level | MSGLEVEL_NO_ACT))
 		level |= MSGLEVEL_NO_ACT;
 
-        if (ischannel(*target)) {
+        if (server_ischannel(SERVER(server), target)) {
 		/* notice in some channel */
 		printformat(server, target, level,
 			    IRCTXT_NOTICE_PUBLIC, nick, oldtarget, msg);
@@ -270,7 +244,7 @@ static void sig_message_irc_notice(SERVER_REC *server, const char *msg,
 static void sig_message_own_ctcp(IRC_SERVER_REC *server, const char *cmd,
 				 const char *data, const char *target)
 {
-	printformat(server, skip_target(server, target), MSGLEVEL_CTCPS |
+	printformat(server, fe_channel_skip_prefix(server, target), MSGLEVEL_CTCPS |
 		    MSGLEVEL_NOHILIGHT | MSGLEVEL_NO_ACT,
 		    IRCTXT_OWN_CTCP, target, cmd, data);
 }
@@ -282,8 +256,8 @@ static void sig_message_irc_ctcp(IRC_SERVER_REC *server, const char *cmd,
 	const char *oldtarget;
 
 	oldtarget = target;
-	target = skip_target(server, target);
-	printformat(server, ischannel(*target) ? target : nick, MSGLEVEL_CTCPS,
+	target = fe_channel_skip_prefix(server, target);
+	printformat(server, server_ischannel(SERVER(server), target) ? target : nick, MSGLEVEL_CTCPS,
 		    IRCTXT_CTCP_REQUESTED, nick, addr, cmd, data, oldtarget);
 }
 
diff --git a/src/fe-common/irc/fe-irc-queries.c b/src/fe-common/irc/fe-irc-queries.c
index 0861c9e4..b2faefbc 100644
--- a/src/fe-common/irc/fe-irc-queries.c
+++ b/src/fe-common/irc/fe-irc-queries.c
@@ -63,7 +63,7 @@ static void event_privmsg(SERVER_REC *server, const char *data,
 
 	g_return_if_fail(data != NULL);
 
-	if (nick == NULL || address == NULL || ischannel(*data) ||
+	if (nick == NULL || address == NULL || server_ischannel(server, data) ||
 	    !settings_get_bool("query_track_nick_changes"))
                 return;
 
diff --git a/src/fe-common/irc/fe-modes.c b/src/fe-common/irc/fe-modes.c
index e5317c0f..53e56c97 100644
--- a/src/fe-common/irc/fe-modes.c
+++ b/src/fe-common/irc/fe-modes.c
@@ -168,7 +168,7 @@ static void sig_message_mode(IRC_SERVER_REC *server, const char *channel,
 			 mode, MSGLEVEL_MODES))
 		return;
 
-	if (!ischannel(*channel)) {
+	if (!server_ischannel(SERVER(server), channel)) {
 		/* user mode change */
 		printformat(server, NULL, MSGLEVEL_MODES,
 			    IRCTXT_USERMODE_CHANGE, mode, channel);
diff --git a/src/fe-common/irc/fe-netjoin.c b/src/fe-common/irc/fe-netjoin.c
index 35c463e4..f5cb081e 100644
--- a/src/fe-common/irc/fe-netjoin.c
+++ b/src/fe-common/irc/fe-netjoin.c
@@ -400,7 +400,7 @@ static void msg_mode(IRC_SERVER_REC *server, const char *channel,
 	int show;
 
 	g_return_if_fail(data != NULL);
-	if (!ischannel(*channel) || addr != NULL)
+	if (!server_ischannel(SERVER(server), channel) || addr != NULL)
 		return;
 
 	params = event_get_params(data, 2 | PARAM_FLAG_GETREST,
diff --git a/src/irc/core/bans.c b/src/irc/core/bans.c
index b60e681b..68dd45c0 100644
--- a/src/irc/core/bans.c
+++ b/src/irc/core/bans.c
@@ -186,7 +186,7 @@ static void command_set_ban(const char *data, IRC_SERVER_REC *server,
 
 	if (!cmd_get_params(data, &free_arg, 2 | PARAM_FLAG_OPTCHAN | PARAM_FLAG_GETREST,
 			    item, &channel, &nicks)) return;
-	if (!ischannel(*channel)) cmd_param_error(CMDERR_NOT_JOINED);
+	if (!server_ischannel(SERVER(server), channel)) cmd_param_error(CMDERR_NOT_JOINED);
 	if (*nicks == '\0') {
 		if (g_strcmp0(data, "*") != 0)
 			cmd_param_error(CMDERR_NOT_ENOUGH_PARAMS);
diff --git a/src/irc/core/channel-rejoin.c b/src/irc/core/channel-rejoin.c
index 68a1dee1..154035ae 100644
--- a/src/irc/core/channel-rejoin.c
+++ b/src/irc/core/channel-rejoin.c
@@ -149,7 +149,7 @@ static void event_target_unavailable(IRC_SERVER_REC *server, const char *data)
 	g_return_if_fail(data != NULL);
 
 	params = event_get_params(data, 2, NULL, &channel);
-	if (ischannel(*channel)) {
+	if (server_ischannel(SERVER(server), channel)) {
 		chanrec = irc_channel_find(server, channel);
 		if (chanrec != NULL && chanrec->joined) {
 			/* dalnet event - can't change nick while
diff --git a/src/irc/core/irc-channels.c b/src/irc/core/irc-channels.c
index e38cb98b..add18acf 100644
--- a/src/irc/core/irc-channels.c
+++ b/src/irc/core/irc-channels.c
@@ -99,7 +99,7 @@ static void irc_channels_join(IRC_SERVER_REC *server, const char *data,
 	tmp = chanlist;
 	for (;; tmp++) {
 		if (*tmp !=  NULL) {
-			channel = ischannel(**tmp) ? g_strdup(*tmp) :
+			channel = server_ischannel(SERVER(server), *tmp) ? g_strdup(*tmp) :
 			g_strdup_printf("#%s", *tmp);
 
 			chanrec = irc_channel_find(server, channel);
@@ -134,7 +134,7 @@ static void irc_channels_join(IRC_SERVER_REC *server, const char *data,
 			if (use_keys)
 				cmdlen += outkeys->len;
 			if (*tmpstr != NULL)
-				cmdlen += ischannel(**tmpstr) ? strlen(*tmpstr) :
+				cmdlen += server_ischannel(SERVER(server), *tmpstr) ? strlen(*tmpstr) :
 					  strlen(*tmpstr)+1;
 			if (*tmpkey != NULL)
 				cmdlen += strlen(*tmpkey);
diff --git a/src/irc/core/irc-commands.c b/src/irc/core/irc-commands.c
index e7fb5067..f2cd49c0 100644
--- a/src/irc/core/irc-commands.c
+++ b/src/irc/core/irc-commands.c
@@ -191,7 +191,7 @@ static void cmd_kick(const char *data, IRC_SERVER_REC *server, WI_ITEM_REC *item
 		return;
 
 	if (*channame == '\0' || *nicks == '\0') cmd_param_error(CMDERR_NOT_ENOUGH_PARAMS);
-	if (!ischannel(*channame)) cmd_param_error(CMDERR_NOT_JOINED);
+	if (!server_ischannel(SERVER(server), channame)) cmd_param_error(CMDERR_NOT_JOINED);
 
 	recoded = recode_out(SERVER(server), reason, channame);
 	g_string_printf(tmpstr, "KICK %s %s :%s", channame, nicks, recoded);
diff --git a/src/irc/core/irc-nicklist.c b/src/irc/core/irc-nicklist.c
index 5438509e..667016aa 100644
--- a/src/irc/core/irc-nicklist.c
+++ b/src/irc/core/irc-nicklist.c
@@ -394,7 +394,7 @@ static void event_target_unavailable(IRC_SERVER_REC *server, const char *data)
 	g_return_if_fail(data != NULL);
 
 	params = event_get_params(data, 2, NULL, &channel);
-	if (!ischannel(*channel)) {
+	if (!server_ischannel(SERVER(server), channel)) {
 		/* nick is unavailable. */
 		event_nick_in_use(server, data);
 	}
diff --git a/src/irc/core/irc-queries.c b/src/irc/core/irc-queries.c
index 72c17df1..12861744 100644
--- a/src/irc/core/irc-queries.c
+++ b/src/irc/core/irc-queries.c
@@ -60,8 +60,8 @@ static void check_query_changes(IRC_SERVER_REC *server, const char *nick,
 {
 	QUERY_REC *query;
 
-	if (ischannel(*target))
-                return;
+	if (server_ischannel(SERVER(server), target))
+		return;
 
 	query = irc_query_find(server, nick);
 	if (query == NULL)
diff --git a/src/irc/core/irc-servers.c b/src/irc/core/irc-servers.c
index e9920d91..b2718ae1 100644
--- a/src/irc/core/irc-servers.c
+++ b/src/irc/core/irc-servers.c
@@ -72,13 +72,20 @@ static int isnickflag_func(SERVER_REC *server, char flag)
 
 static int ischannel_func(SERVER_REC *server, const char *data)
 {
-	if (*data == '@') {
-		/* @#channel, @+#channel */
+	IRC_SERVER_REC *irc_server = (IRC_SERVER_REC *) server;
+	char *chantypes, *statusmsg;
+
+	chantypes = g_hash_table_lookup(irc_server->isupport, "chantypes");
+	if (chantypes == NULL)
+		chantypes = "#&!+"; /* normal, local, secure, modeless */
+	statusmsg = g_hash_table_lookup(irc_server->isupport, "statusmsg");
+	if (statusmsg == NULL)
+		statusmsg = "@+";
+
+	while (strchr(statusmsg, *data) != NULL)
 		data++;
-		if (*data == '+' && ischannel(data[1]))
-			return 1;
-	}
-	return ischannel(*data);
+
+	return strchr(chantypes, *data) != NULL;
 }
 
 static char **split_line(const SERVER_REC *server, const char *line,
diff --git a/src/irc/core/irc.h b/src/irc/core/irc.h
index de19e084..b5bd833a 100644
--- a/src/irc/core/irc.h
+++ b/src/irc/core/irc.h
@@ -22,12 +22,6 @@ typedef struct _REDIRECT_REC REDIRECT_REC;
 #define isnickflag(server, a) \
 	(server->prefix[(int)(unsigned char) a] != '\0')
 
-#define ischannel(a) \
-	((a) == '#' || /* normal */ \
-	(a) == '&' || /* local */ \
-	(a) == '!' || /* secure */ \
-	(a) == '+') /* modeless */
-
 #define IS_IRC_ITEM(rec) (IS_IRC_CHANNEL(rec) || IS_IRC_QUERY(rec))
 #define IRC_PROTOCOL (chat_protocol_lookup("IRC"))
 
diff --git a/src/irc/core/modes.c b/src/irc/core/modes.c
index a812691c..32a0c169 100644
--- a/src/irc/core/modes.c
+++ b/src/irc/core/modes.c
@@ -488,7 +488,7 @@ static void event_mode(IRC_SERVER_REC *server, const char *data,
 	params = event_get_params(data, 2 | PARAM_FLAG_GETREST,
 				  &channel, &mode);
 
-	if (!ischannel(*channel)) {
+	if (!server_ischannel(SERVER(server), channel)) {
 		/* user mode change */
 		parse_user_mode(server, mode);
 	} else {
@@ -536,7 +536,7 @@ static void sig_req_usermode_change(IRC_SERVER_REC *server, const char *data,
 
 	params = event_get_params(data, 2 | PARAM_FLAG_GETREST,
 				  &target, &mode);
-	if (!ischannel(*target)) {
+	if (!server_ischannel(SERVER(server), target)) {
                 /* we requested a user mode change, save this */
 		mode = modes_join(NULL, server->wanted_usermode, mode, FALSE);
                 g_free_not_null(server->wanted_usermode);
@@ -856,7 +856,7 @@ static void cmd_mode(const char *data, IRC_SERVER_REC *server,
 			target = chanrec->name;
 
 		irc_send_cmdv(server, "MODE %s", target);
-	} else if (ischannel(*target))
+	} else if (server_ischannel(SERVER(server), target))
 		channel_set_mode(server, target, mode);
 	else {
 		if (g_ascii_strcasecmp(target, server->nick) == 0) {
diff --git a/src/irc/dcc/dcc-autoget.c b/src/irc/dcc/dcc-autoget.c
index 38170c56..de23a5d1 100644
--- a/src/irc/dcc/dcc-autoget.c
+++ b/src/irc/dcc/dcc-autoget.c
@@ -51,7 +51,7 @@ static void sig_dcc_request(GET_DCC_REC *dcc, const char *nickaddr)
 
 	/* Unless specifically said in dcc_autoget_masks, don't do autogets
 	   sent to channels. */
-	if (*masks == '\0' && dcc->target != NULL && ischannel(*dcc->target))
+	if (*masks == '\0' && dcc->target != NULL && server_ischannel(SERVER(dcc->server), dcc->target))
 		return;
 
 	/* don't autoget files beginning with a dot, if download dir is
diff --git a/src/irc/flood/flood.c b/src/irc/flood/flood.c
index 29502ca6..0944a6eb 100644
--- a/src/irc/flood/flood.c
+++ b/src/irc/flood/flood.c
@@ -250,7 +250,7 @@ static void flood_privmsg(IRC_SERVER_REC *server, const char *data,
 
 	params = event_get_params(data, 2, &target, &text);
 
-	level = ischannel(*target) ? MSGLEVEL_PUBLIC : MSGLEVEL_MSGS;
+	level = server_ischannel(SERVER(server), target) ? MSGLEVEL_PUBLIC : MSGLEVEL_MSGS;
 	if (addr != NULL && !ignore_check(SERVER(server), nick, addr, target, text, level))
 		flood_newmsg(server, level, nick, addr, target);
 
@@ -287,7 +287,7 @@ static void flood_ctcp(IRC_SERVER_REC *server, const char *data,
 		return;
 
 	level = g_ascii_strncasecmp(data, "ACTION ", 7) != 0 ? MSGLEVEL_CTCPS :
-		(ischannel(*target) ? MSGLEVEL_PUBLIC : MSGLEVEL_MSGS);
+		(server_ischannel(SERVER(server), target) ? MSGLEVEL_PUBLIC : MSGLEVEL_MSGS);
 	if (!ignore_check(SERVER(server), nick, addr, target, data, level))
 		flood_newmsg(server, level, nick, addr, target);
 }
diff --git a/src/irc/proxy/listen.c b/src/irc/proxy/listen.c
index 2b7c7bda..ae5af5fb 100644
--- a/src/irc/proxy/listen.c
+++ b/src/irc/proxy/listen.c
@@ -262,7 +262,7 @@ static void handle_client_cmd(CLIENT_REC *client, char *cmd, char *args,
 
 		ignore_next = TRUE;
 		if (*msg != '\001' || msg[strlen(msg)-1] != '\001') {
-	        	signal_emit(ischannel(*target) ?
+			signal_emit(server_ischannel(SERVER(client->server), target) ?
 				    "message own_public" : "message own_private", 4,
 				    client->server, msg, target, target);
 		} else if (strncmp(msg+1, "ACTION ", 7) == 0) {