+ /* tell users in this channel about the new client */
+ IRC_WriteStrChannelPrefix(Client, chan, target, false, "JOIN :%s", channame);
+ if (modes[1])
+ IRC_WriteStrChannelPrefix(Client, chan, target, false, "MODE %s +%s %s",
+ channame, &modes[1], Client_ID(target));
+}
+
+
+static bool
+join_send_topic(CLIENT *Client, CLIENT *target, CHANNEL *chan,
+ const char *channame)
+{
+ const char *topic;
+
+ if (Client_Type(Client) != CLIENT_USER)
+ return true;
+ /* acknowledge join */
+ if (!IRC_WriteStrClientPrefix(Client, target, "JOIN :%s", channame))
+ return false;
+
+ /* Send topic to client, if any */
+ topic = Channel_Topic(chan);
+ assert(topic != NULL);
+ if (*topic) {
+ if (!IRC_WriteStrClient(Client, RPL_TOPIC_MSG,
+ Client_ID(Client), channame, topic))
+ return false;
+#ifndef STRICT_RFC
+ if (!IRC_WriteStrClient(Client, RPL_TOPICSETBY_MSG,
+ Client_ID(Client), channame,
+ Channel_TopicWho(chan),
+ Channel_TopicTime(chan)))
+ return false;
+#endif
+ }
+ /* send list of channel members to client */
+ if (!IRC_Send_NAMES(Client, chan))
+ return false;
+ return IRC_WriteStrClient(Client, RPL_ENDOFNAMES_MSG, Client_ID(Client), Channel_Name(chan));
+}
+
+
+GLOBAL bool
+IRC_JOIN( CLIENT *Client, REQUEST *Req )
+{
+ char *channame, *channame_ptr, *key, *key_ptr, *flags;
+ CLIENT *target;
+ CHANNEL *chan;
+
+ assert( Client != NULL );
+ assert( Req != NULL );
+
+ /* Bad number of arguments? */
+ if (Req->argc < 1 || Req->argc > 2)
+ return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Client), Req->command);
+
+ /* Who is the sender? */
+ if (Client_Type(Client) == CLIENT_SERVER)
+ target = Client_Search(Req->prefix);
+ else
+ target = Client;
+
+ if (!target)
+ return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG, Client_ID(Client), Req->prefix);
+
+ /* Is argument "0"? */
+ if (Req->argc == 1 && !strncmp("0", Req->argv[0], 2))
+ return part_from_all_channels(Client, target);
+
+ /* Are channel keys given? */
+ if (Req->argc > 1) {
+ key = Req->argv[1];
+ key_ptr = strchr(key, ',');
+ if (key_ptr) *key_ptr = '\0';
+ } else {
+ key = key_ptr = NULL;
+ }
+ channame = Req->argv[0];
+ channame_ptr = strchr(channame, ',');
+ if (channame_ptr) *channame_ptr = '\0';
+
+ while (channame) {
+ flags = NULL;
+
+ /* Did the server include channel-user-modes? */
+ if (Client_Type(Client) == CLIENT_SERVER) {
+ flags = strchr(channame, 0x7);
+ if (flags) {
+ *flags = '\0';
+ flags++;