commit acb66d64637d33661ff4345e9bb37444109e9d11
from: Florian Westphal <fw@strlen.de>
via: Alexander Barton <alex@barton.de>
date: Sun Jul 25 14:18:25 2010 UTC

Allow IRC operators to use MODE command on any channel (closes: #100)

This allows IRC operators to change channel modes of ANY channel,
even without joining these channels first.

commit - 63a304755acc107287ac6fd86d6aca6f7b6e004b
commit + acb66d64637d33661ff4345e9bb37444109e9d11
blob - 80a6003fc576ec6ceac1beb2eb1fe69dfc961cc8
blob + 86a509da52e91bd1f5730b46739d885a3cfe072e
--- src/ngircd/irc-mode.c
+++ src/ngircd/irc-mode.c
@@ -297,7 +297,8 @@ Channel_Mode(CLIENT *Client, REQUEST *Req, CLIENT *Ori
 {
 	char the_modes[COMMAND_LEN], the_args[COMMAND_LEN], x[2],
 	    argadd[CLIENT_PASS_LEN], *mode_ptr;
-	bool connected, set, modeok = true, skiponce, use_servermode = false, retval;
+	bool connected, set, skiponce, retval, onchannel;
+	bool modeok = true, use_servermode = false;
 	int mode_arg, arg_arg;
 	CLIENT *client;
 	long l;
@@ -314,14 +315,13 @@ Channel_Mode(CLIENT *Client, REQUEST *Req, CLIENT *Ori
 	/* Is the user allowed to change modes? */
 	if (Client_Type(Client) == CLIENT_USER) {
 		/* Is the originating user on that channel? */
-		if (!Channel_IsMemberOf(Channel, Origin))
-			return IRC_WriteStrClient(Origin, ERR_NOTONCHANNEL_MSG,
-				Client_ID(Origin), Channel_Name(Channel));
+		onchannel = Channel_IsMemberOf(Channel, Origin);
 		modeok = false;
 		/* channel operator? */
-		if (strchr(Channel_UserModes(Channel, Origin), 'o'))
+		if (onchannel &&
+		    strchr(Channel_UserModes(Channel, Origin), 'o')) {
 			modeok = true;
-		else if (Conf_OperCanMode) {
+		} else if (Conf_OperCanMode) {
 			/* IRC-Operators can use MODE as well */
 			if (Client_OperByMe(Origin)) {
 				modeok = true;
@@ -329,6 +329,10 @@ Channel_Mode(CLIENT *Client, REQUEST *Req, CLIENT *Ori
 					use_servermode = true; /* Change Origin to Server */
 			}
 		}
+
+		if (!onchannel && !use_servermode)
+			return IRC_WriteStrClient(Origin, ERR_NOTONCHANNEL_MSG,
+				Client_ID(Origin), Channel_Name(Channel));
 	}
 
 	mode_arg = 1;