+ if(arg == argc) {
+ reply(textclient, user, "NS_MODE_INVALID", modeStr[i]);
+ return;
+ }
+ carg = argv[arg++];
+ if(uaccess < db_canban) {
+ reply(textclient, user, "NS_MODE_CANBAN", chan->name);
+ db_canban = -1;
+ break;
+ }
+ if(db_canban == -1) break;
+ char hostmask_buffer[NICKLEN+USERLEN+HOSTLEN+3];
+ char usermask[NICKLEN+USERLEN+HOSTLEN+3];
+ struct BanNode *ban;
+ int match_count = 0;
+ carg = make_banmask(carg, hostmask_buffer);
+ if(add) {
+ for(chanuser = getChannelUsers(chan, NULL); chanuser; chanuser = getChannelUsers(chan, chanuser)) {
+ cuser = chanuser->user;
+ sprintf(usermask, "%s!%s@%s", cuser->nick, cuser->ident, cuser->host);
+ if(!match(carg, usermask)) {
+ if(isNetworkService(chanuser->user)) {
+ reply(textclient, user, "NS_SERVICE_IMMUNE", chanuser->user->nick);
+ skip = 1;
+ break;
+ }
+ if(isUserProtected(chan, cuser, user)) {
+ reply(textclient, user, "NS_USER_PROTECTED", cuser->nick);
+ skip = 1;
+ break;
+ }
+ match_count++;
+ if(match_count > 4 && (match_count * 3) > chan->usercount && !isGodMode(user)) {
+ skip = 1;
+ reply(textclient, user, "NS_LAME_MASK", carg);
+ break;
+ }
+ }
+ }
+ } else {
+ skip = 1;
+ for(ban = chan->bans; ban; ban = ban->next) {
+ if(!match(carg, ban->mask)) {
+ skip = 0;
+ break;
+ }
+ }
+ }
+ if(!skip) {
+ modeBufferSet(modeBuf, add, 'b', carg);
+ }