commit - 23b07bdf50ef5cc7b57c057b6088e4f5e4d7d6da
commit + de453d71cb1bcd78b365f16e994003e913a03148
blob - e3b754d69815c1aaa0729177b25a80b35986d447
blob + 48ec5d95e98cbdc30e80f4aeb939b0955f680b02
--- doc/Modes.txt
+++ doc/Modes.txt
@@ -58,6 +58,7 @@ users to lists (e.g. "invite list", "ban list"), other
   R	19	Only registered users are allowed to join this channel.
   s	0.9.0	Channel is "secret".
   t	0.3.0	Only ChanOps are allowed to modify the channel topic.
+  V	20	Channel doesn't allow invites.
   z	16	Only users connected via SSL are allowed to join the channel.
 
 III. Channel User Modes
blob - ba7adf17adb204840418b7482b75fef975844138
blob + 1eb3337dfca4e65d09830befd58d9f55984744c3
--- src/ngircd/defines.h
+++ src/ngircd/defines.h
@@ -164,7 +164,7 @@
 #define USERMODES "aBcCiorRswx"
 
 /** Supported channel modes. */
-#define CHANMODES "abehiIklmMnoOPqrRstvz"
+#define CHANMODES "abehiIklmMnoOPqrRstvVz"
 
 /** Away message for users connected to linked servers. */
 #define DEFAULT_AWAY_MSG "Away"
blob - 04f50d77f8d3f5f832912f62dbd1b33211652ab5
blob + a08d4d92b413ef05acc11ac1380c70197b67a497
--- src/ngircd/irc-mode.c
+++ src/ngircd/irc-mode.c
@@ -566,6 +566,7 @@ Channel_Mode(CLIENT *Client, REQUEST *Req, CLIENT *Ori
 				goto chan_exit;
 			}
 		case 'i': /* Invite only */
+		case 'V': /* Invite disallow */
 		case 'M': /* Only identified nicks can write */
 		case 'm': /* Moderated */
 		case 'n': /* Only members can write */
blob - 08495475f60520c7dd899d7cef9e10b4f4852550
blob + 5c12faf78022ac8929d239029a4e7d2e8ff2fe47
--- src/ngircd/irc-op.c
+++ src/ngircd/irc-op.c
@@ -164,6 +164,11 @@ IRC_INVITE(CLIENT *Client, REQUEST *Req)
 		if (!Channel_IsMemberOf(chan, from))
 			return IRC_WriteStrClient(from, ERR_NOTONCHANNEL_MSG, Client_ID(Client), Req->argv[1]);
 
+		/* Is the channel "invite-disallow"? */
+		if (strchr(Channel_Modes(chan), 'V'))
+			return IRC_WriteStrClient(from, ERR_NOINVITE_MSG,
+				Client_ID(from), Channel_Name(chan));
+
 		/* Is the channel "invite-only"? */
 		if (strchr(Channel_Modes(chan), 'i')) {
 			/* Yes. The user must be channel owner/admin/operator/halfop! */
blob - 35d621a6e685f988007325f54974623093b54215
blob + 5c83c5cc7b4c77ee51139b0c6c2c7237d91c4ca1
--- src/ngircd/messages.h
+++ src/ngircd/messages.h
@@ -21,7 +21,7 @@
 #define RPL_YOURHOST_MSG		"002 %s :Your host is %s, running version ngircd-%s (%s/%s/%s)"
 #define RPL_CREATED_MSG			"003 %s :This server has been started %s"
 #define RPL_MYINFO_MSG			"004 %s %s ngircd-%s %s %s"
-#define RPL_ISUPPORT1_MSG		"005 %s RFC2812 IRCD=ngIRCd CHARSET=UTF-8 CASEMAPPING=ascii PREFIX=(qaohv)~&@%%+ CHANTYPES=#&+ CHANMODES=beI,k,l,imMnOPRstz CHANLIMIT=#&+:%d :are supported on this server"
+#define RPL_ISUPPORT1_MSG		"005 %s RFC2812 IRCD=ngIRCd CHARSET=UTF-8 CASEMAPPING=ascii PREFIX=(qaohv)~&@%%+ CHANTYPES=#&+ CHANMODES=beI,k,l,imMnOPRstVz CHANLIMIT=#&+:%d :are supported on this server"
 #define RPL_ISUPPORT2_MSG		"005 %s CHANNELLEN=%d NICKLEN=%d TOPICLEN=%d AWAYLEN=%d KICKLEN=%d MODES=%d MAXLIST=beI:%d EXCEPTS=e INVEX=I PENALTY :are supported on this server"
 
 #define RPL_TRACELINK_MSG		"200 %s Link %s-%s %s %s V%s %ld %d %d"
@@ -148,6 +148,7 @@
 #define ERR_UMODEUNKNOWNFLAG_MSG	"501 %s :Unknown mode"
 #define ERR_UMODEUNKNOWNFLAG2_MSG	"501 %s :Unknown mode \"%c%c\""
 #define ERR_USERSDONTMATCH_MSG		"502 %s :Can't set/get mode for other users"
+#define ERR_NOINVITE_MSG		"518 %s :Cannot invite to %s (+V)"
 
 #ifdef ZLIB
 # define RPL_STATSLINKINFOZIP_MSG	"211 %s %s %d %ld %ld/%ld %ld %ld/%ld :%ld"