enum channel_operation_status channel_join(struct channel_data *chan, struct map_session_data *sd, const char *password, bool silent)
{
	bool stealth = false;

	nullpo_retr(HCS_STATUS_FAIL, chan);
	nullpo_retr(HCS_STATUS_FAIL, sd);

	if (idb_exists(chan->users, sd->status.char_id)) {
		return HCS_STATUS_ALREADY;
	}

	if (chan->password[0] != '\0' && strcmp(chan->password, password) != 0) {
		if (pc_has_permission(sd, PC_PERM_HCHSYS_ADMIN)) {
			stealth = true;
		} else {
			return HCS_STATUS_NOPERM;
		}
	}

	if (chan->banned && idb_exists(chan->banned, sd->status.account_id))
	{
		struct channel_ban_entry *banentry = (struct channel_ban_entry *)idb_get(chan->banned, sd->status.account_id);
		time_t i;
		if ( banentry == NULL ) // well somehow it's null
			return HCS_STATUS_BANNED;

		i =  atoi(banentry->time);

		if ( i >= time(NULL) )
			return HCS_STATUS_BANNED;
	}

	if (!silent && !(chan->options&HCS_OPT_ANNOUNCE_JOIN)) {
		char output[CHAT_SIZE_MAX];
		if (chan->type == HCS_TYPE_MAP) {
			sprintf(output, msg_sd(sd,1435), chan->name, map->list[chan->m].name); // You're now in the '#%s' channel for '%s'
		} else {
			sprintf(output, msg_sd(sd,1403), chan->name); // You're now in the '%s' channel
		}
		clif->colormes(sd->fd, COLOR_DEFAULT, output);
	}

	if (chan->type == HCS_TYPE_ALLY) {
		struct guild *g = sd->guild;
		int i;
		for (i = 0; i < MAX_GUILDALLIANCE; i++) {
			struct guild *sg = NULL;
			if (g->alliance[i].opposition == 0 && g->alliance[i].guild_id && (sg = guild->search(g->alliance[i].guild_id))) {
				if (!(sg->channel->banned && idb_exists(sg->channel->banned, sd->status.account_id))) {
					channel->join_sub(sg->channel, sd, stealth);
				}
			}
		}
	}

	channel->join_sub(chan, sd, stealth);

	return HCS_STATUS_OK;
}