commit d4d8102fc99a57e2b1f6604f8a5956c33e88bf2c
from: Alexander Barton <alex@barton.de>
date: Fri Jan 13 09:50:00 2012 UTC

Don't stop join handling on faulty channel, skip it (part #2)

Commit 565523cb allowed processing of further channel names given to the
JOIN command when a single name was invalid.

After this patch, the JOIN command handler continues to process channel
name lists even after errors like "channel is full", "too many channels",
and the like and generates appropriate error messages for all the
channels given by the client.

commit - 77f68b4fd140404848e203a6634ecd472294723f
commit + d4d8102fc99a57e2b1f6604f8a5956c33e88bf2c
blob - 196b5477487cebdfa0c073277a1ff81115a7d798
blob + 77deed7abde03f455c33018d8e01cf33fba47e53
--- src/ngircd/irc-channel.c
+++ src/ngircd/irc-channel.c
@@ -364,7 +364,7 @@ IRC_JOIN( CLIENT *Client, REQUEST *Req )
 			 /* channel must be created, but forbidden by config */
 			IRC_WriteStrClient(Client, ERR_BANNEDFROMCHAN_MSG,
 					   Client_ID(Client), channame);
-			break;
+			goto join_next;
 		}
 
 		/* Local client? */
@@ -377,15 +377,19 @@ IRC_JOIN( CLIENT *Client, REQUEST *Req )
 
 			/* Test if the user has reached the channel limit */
 			if ((Conf_MaxJoins > 0) &&
-			    (Channel_CountForUser(Client) >= Conf_MaxJoins))
-				return IRC_WriteStrClient(Client,
+			    (Channel_CountForUser(Client) >= Conf_MaxJoins)) {
+				if (!IRC_WriteStrClient(Client,
 						ERR_TOOMANYCHANNELS_MSG,
-						Client_ID(Client), channame);
+						Client_ID(Client), channame))
+					return DISCONNECTED;
+				goto join_next;
+			}
+
 			if (chan) {
 				/* Already existing channel: check if the
 				 * client is allowed to join */
 				if (!join_allowed(Client, chan, channame, key))
-					break;
+					goto join_next;
 			} else {
 				/* New channel: first user will become channel
 				 * operator unless this is a modeless channel */