check if the user may join the channel he's getting forwarded by +F

diff --git a/ircd/m_join.c b/ircd/m_join.c
index 0dc5ecf0d311d1a85a77856c7764f270c0d46ec0..6a93769cc55de697d612fd52ba7f92a0c1b18575 100644 (file)
--- a/ircd/m_join.c
+++ b/ircd/m_join.c
@@ -278,21 +278,41 @@ int m_join(struct Client *cptr, struct Client *sptr, int parc, char *parv[])
            char *altchan = chptr->mode.altchan;
                
                if (!(chptrb = FindChannel(altchan))) {
-         if (((altchan[0] == '&') && !feature_bool(FEAT_LOCAL_CHANNELS)) || strlen(altchan) > IRCD_MIN(CHANNELLEN, feature_int(FEAT_CHANNELLEN))) {
-          //we don't send an error message here - that would be very strange for the user, because they normaly don't know that mode +F is set
-         } else if ((chptrb = get_channel(sptr, altchan, CGT_CREATE))) {
-           joinbuf_join(&create, chptrb, CHFL_CHANOP | CHFL_CHANNEL_MANAGER);
-                  do_names(sptr, chptrb, NAMES_ALL|NAMES_EON);
-                }
+          if (((altchan[0] == '&') && !feature_bool(FEAT_LOCAL_CHANNELS)) || strlen(altchan) > IRCD_MIN(CHANNELLEN, feature_int(FEAT_CHANNELLEN))) {
+            //we don't send an error message here - that would be very strange for the user, because they normaly don't know that mode +F is set
+          } else if ((chptrb = get_channel(sptr, altchan, CGT_CREATE))) {
+            joinbuf_join(&create, chptrb, CHFL_CHANOP | CHFL_CHANNEL_MANAGER);
+                   do_names(sptr, chptrb, NAMES_ALL|NAMES_EON);
+                 }
                } else {
-                joinbuf_join(&join, chptrb, flags);
-                del_invite(sptr, chptrb);
-         if (chptrb->topic[0]) {
-          send_reply(sptr, RPL_TOPIC, chptrb->chname, chptrb->topic);
-          send_reply(sptr, RPL_TOPICWHOTIME, chptrb->chname, chptrb->topic_nick, chptrb->topic_time);
-         }
-         do_names(sptr, chptrb, NAMES_ALL|NAMES_EON); /* send /names list */
-               }
+                 //first of all check if we may even join this channel
+                 int err2 = 0;
+                 if (chptrb->users == 0 && !chptrb->mode.apass[0] && !(chptrb->mode.mode & MODE_PERSIST)) {
+            /* Joining a zombie channel (zannel): give ops and increment TS. */
+            flags = CHFL_CHANOP;
+            chptrb->creationtime++;
+          } else if (IsInvited(sptr, chptrb)) {
+             /* Invites and key=OVERRIDE bypass these other checks. */
+          } else if (chptrb->mode.mode & MODE_INVITEONLY)
+            err2 = ERR_INVITEONLYCHAN;
+          else if (chptrb->mode.limit && (chptrb->users >= chptrb->mode.limit))
+            err2 = ERR_CHANNELISFULL;
+          else if ((chptrb->mode.mode & MODE_REGONLY) && !IsAccount(sptr))
+            err2 = ERR_NEEDREGGEDNICK;
+          else if (find_ban(sptr, chptrb->banlist))
+            err2 = ERR_BANNEDFROMCHAN;
+          else if (*chptrb->mode.key && (!key || strcmp(key, chptrb->mode.key)))
+            err2 = ERR_BADCHANNELKEY;
+                 if(!err2) {
+                   joinbuf_join(&join, chptrb, flags);
+                   del_invite(sptr, chptrb);
+            if (chptrb->topic[0]) {
+              send_reply(sptr, RPL_TOPIC, chptrb->chname, chptrb->topic);
+              send_reply(sptr, RPL_TOPICWHOTIME, chptrb->chname, chptrb->topic_nick, chptrb->topic_time);
+            }
+            do_names(sptr, chptrb, NAMES_ALL|NAMES_EON); /* send /names list */
+                 }
+           }
          }
          
       if (err) {