pissircd/src/modules/pass.c

142 lines
3.4 KiB
C

/*
* IRC - Internet Relay Chat, src/modules/pass.c
* (C) 2004 The UnrealIRCd Team
*
* See file AUTHORS in IRC package for additional names of
* the programmers.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 1, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "unrealircd.h"
CMD_FUNC(cmd_pass);
#define MSG_PASS "PASS"
ModuleHeader MOD_HEADER
= {
"pass",
"5.0",
"command /pass",
"UnrealIRCd Team",
"unrealircd-5",
};
/* Forward declarations */
int _check_banned(Client *client, int exitflags);
MOD_TEST()
{
MARK_AS_OFFICIAL_MODULE(modinfo);
EfunctionAdd(modinfo->handle, EFUNC_CHECK_BANNED, _check_banned);
return MOD_SUCCESS;
}
MOD_INIT()
{
CommandAdd(modinfo->handle, MSG_PASS, cmd_pass, 1, CMD_UNREGISTERED|CMD_USER|CMD_SERVER);
MARK_AS_OFFICIAL_MODULE(modinfo);
return MOD_SUCCESS;
}
MOD_LOAD()
{
return MOD_SUCCESS;
}
MOD_UNLOAD()
{
return MOD_SUCCESS;
}
/** Handles zlines/gzlines/throttling/unknown connections
* @param client Client to be checked
* @param exitflags Special flag (NO_EXIT_CLIENT) -- only used in very early stages of the connection
* @returns 1 if user is banned and is or should be killed, 0 if not.
*/
int _check_banned(Client *client, int exitflags)
{
TKL *tk;
if ((tk = find_tkline_match_zap(client)))
{
banned_client(client, "Z-Lined", tk->ptr.serverban->reason, (tk->type & TKL_GLOBAL)?1:0, exitflags);
return 1;
}
else
{
int val;
char zlinebuf[512];
if (!(val = throttle_can_connect(client)))
{
if (exitflags & NO_EXIT_CLIENT)
{
ircsnprintf(zlinebuf, sizeof(zlinebuf),
"ERROR :Closing Link: [%s] (Throttled: Reconnecting too fast) - "
"Email %s for more information.\r\n",
client->ip, KLINE_ADDRESS);
(void)send(client->local->fd, zlinebuf, strlen(zlinebuf), 0);
return 1;
} else {
ircsnprintf(zlinebuf, sizeof(zlinebuf),
"Throttled: Reconnecting too fast - "
"Email %s for more information.",
KLINE_ADDRESS);
exit_client(client, NULL, zlinebuf);
return 1;
}
}
else if (val == 1)
add_throttling_bucket(client);
}
return 0;
}
/***************************************************************************
* cmd_pass() - Added Sat, 4 March 1989
***************************************************************************/
/*
** cmd_pass
** parv[1] = password
*/
CMD_FUNC(cmd_pass)
{
char *password = parc > 1 ? parv[1] : NULL;
if (!MyConnect(client) || (!IsUnknown(client) && !IsHandshake(client)))
{
sendnumeric(client, ERR_ALREADYREGISTRED);
return;
}
if (BadPtr(password))
{
sendnumeric(client, ERR_NEEDMOREPARAMS, "PASS");
return;
}
/* Store the password */
safe_strldup(client->local->passwd, password, PASSWDLEN+1);
/* note: the original non-truncated password is supplied as 2nd parameter. */
RunHookReturn2(HOOKTYPE_LOCAL_PASS, client, password, !=0);
}