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/*
* Copyright (c) 2026 Nakidai Perumenei <nakidai at disroot dot org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "ircd.h"
#include <stddef.h>
#include <string.h>
#include <err.h>
struct Channel channels[CHANNELS_MAX];
size_t channels_c;
int
channel_join(struct Channel *channel, struct Peer *peer)
{
if (channel->users_c == lengthof(channel->users)
|| peer->channels_c == lengthof(peer->channels))
return 1;
peer->channels[peer->channels_c++] = channel;
channel->users[channel->users_c++] = peer;
writechanf(
0,
channel,
":%s!%s@%s JOIN %s",
getnick(peer),
peer->user,
peer->host,
channel->name
);
return 0;
}
int
channel_exit(struct Channel *channel, struct Peer *peer)
{
size_t i;
for (i = 0; i < channel->users_c; ++i)
if (channel->users[i]->fd == peer->fd)
break;
ensure(i != channel->users_c, (void)0, 1);
channel->users[i] = channel->users[--channel->users_c];
for (i = 0; i < peer->channels_c; ++i)
if (!strcmp(peer->channels[i]->name, channel->name))
break;
ensure(i != peer->channels_c, warnx(
"channel_exit(): channel had user, but user hadn't channel"
), 1)
peer->channels[i] = peer->channels[--peer->channels_c];
if (!channel->users_c)
{
for (i = 0; i < channels_c; ++i)
if (!strcmp(channels[i].name, channel->name))
break;
ensure(i != channels_c, warnx(
"channel_exit(): couldn't find empty channel"
), 1);
channels[i] = channels[--channels_c];
}
return 0;
}
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