/*
* Unreal Internet Relay Chat Daemon, src/modules/m_pingpong.c
* (C) 2000-2001 Carsten V. Munk and the UnrealIRCd Team
* Moved to modules by Fish (Justin Hammond)
*
* 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 "config.h"
#include "struct.h"
#include "common.h"
#include "sys.h"
#include "numeric.h"
#include "msg.h"
#include "channel.h"
#include <time.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef _WIN32
#include <io.h>
#endif
#include <fcntl.h>
#include "h.h"
#include "proto.h"
#ifdef STRIPBADWORDS
#include "badwords.h"
#endif
#ifdef _WIN32
#include "version.h"
#endif
DLLFUNC int m_ping(aClient *cptr, aClient *sptr, int parc, char *parv[]);
DLLFUNC int m_pong(aClient *cptr, aClient *sptr, int parc, char *parv[]);
DLLFUNC int m_nospoof(aClient *cptr, aClient *sptr, int parc, char *parv[]);
/* Place includes here */
#define MSG_PING "PING" /* PING */
#define TOK_PING "8" /* 56 */
#define MSG_PONG "PONG" /* PONG */
#define TOK_PONG "9" /* 57 */
ModuleHeader MOD_HEADER(m_pingpong)
= {
"pingpong", /* Name of module */
"$Id$", /* Version */
"ping, pong and nospoof", /* Short description of module */
"3.2-b8-1",
NULL
};
/* This is called on module init, before Server Ready */
DLLFUNC int MOD_INIT(m_pingpong)(ModuleInfo *modinfo)
{
/*
* We call our add_Command crap here
*/
Debug((DEBUG_NOTICE, "INIT"));
add_Command(MSG_PING, TOK_PING, m_ping, MAXPARA);
add_CommandX(MSG_PONG, TOK_PONG, m_pong, MAXPARA, M_UNREGISTERED|M_USER|M_SERVER|M_SHUN|M_VIRUS);
MARK_AS_OFFICIAL_MODULE(modinfo);
return MOD_SUCCESS;
}
/* Is first run when server is 100% ready */
DLLFUNC int MOD_LOAD(m_pingpong)(int module_load)
{
return MOD_SUCCESS;
}
/* Called when module is unloaded */
DLLFUNC int MOD_UNLOAD(m_pingpong)(int module_unload)
{
if (del_Command(MSG_PING, TOK_PING, m_ping) < 0)
{
sendto_realops("Failed to delete command ping when unloading %s",
MOD_HEADER(m_pingpong).name);
}
if (del_Command(MSG_PONG, TOK_PONG, m_pong) < 0)
{
sendto_realops("Failed to delete command pong when unloading %s",
MOD_HEADER(m_pingpong).name);
}
return MOD_SUCCESS;
}
/*
** m_ping
** parv[0] = sender prefix
** parv[1] = origin
** parv[2] = destination
*/
DLLFUNC int m_ping(aClient *cptr, aClient *sptr, int parc, char *parv[])
{
aClient *acptr;
char *origin, *destination;
if (parc < 2 || *parv[1] == '\0')
{
sendto_one(sptr, err_str(ERR_NOORIGIN), me.name, parv[0]);
return 0;
}
origin = parv[1];
destination = parv[2]; /* Will get NULL or pointer (parc >= 2!!) */
if (!MyClient(sptr))
{
/* I've no idea who invented this or what it is supposed to do.. */
acptr = find_client(origin, NULL);
if (!acptr)
acptr = find_server_quick(origin);
if (acptr && acptr != sptr)
origin = cptr->name;
}
if (!BadPtr(destination) && mycmp(destination, me.name) != 0)
{
if (MyClient(sptr))
origin = sptr->name; /* Make sure origin is not spoofed */
if ((acptr = find_server_quick(destination)) && (acptr != &me))
sendto_one(acptr, ":%s PING %s :%s", parv[0], origin, destination);
else
{
sendto_one(sptr, err_str(ERR_NOSUCHSERVER),
me.name, parv[0], destination);
return 0;
}
}
else
sendto_one(sptr, ":%s %s %s :%s", me.name,
IsToken(cptr) ? TOK_PONG : MSG_PONG,
(destination) ? destination : me.name, origin);
return 0;
}
/*
** m_nospoof - allows clients to respond to no spoofing patch
** parv[0] = prefix
** parv[1] = code
*/
DLLFUNC int m_nospoof(aClient *cptr, aClient *sptr, int parc, char *parv[])
{
unsigned long result;
Debug((DEBUG_NOTICE, "NOSPOOF"));
if (IsNotSpoof(cptr))
return 0;
if (IsRegistered(cptr))
return 0;
if (!*sptr->name)
return 0;
if (BadPtr(parv[1]))
goto temp;
result = strtoul(parv[1], NULL, 16);
/* Accept code in second parameter (ircserv) */
if (result != sptr->nospoof)
{
if (BadPtr(parv[2]))
goto temp;
result = strtoul(parv[2], NULL, 16);
if (result != sptr->nospoof)
goto temp;
}
sptr->nospoof = 0;
if (USE_BAN_VERSION && MyConnect(sptr))
sendto_one(sptr, ":IRC!IRC@%s PRIVMSG %s :\1VERSION\1",
me.name, sptr->name);
if (sptr->user && *sptr->user->username && sptr->name[0] && !CHECKPROTO(sptr, PROTO_CLICAP))
return register_user(cptr, sptr, sptr->name,
sptr->user->username, NULL, NULL, NULL);
return 0;
temp:
/* Homer compatibility */
sendto_one(cptr, ":%X!nospoof@%s PRIVMSG %s :\1VERSION\1",
cptr->nospoof, me.name, cptr->name);
return 0;
}
/*
** m_pong
** parv[0] = sender prefix
** parv[1] = origin
** parv[2] = destination
*/
DLLFUNC int m_pong(aClient *cptr, aClient *sptr, int parc, char *parv[])
{
aClient *acptr;
char *origin, *destination;
if (!IsRegistered(cptr))
return m_nospoof(cptr, sptr, parc, parv);
if (parc < 2 || *parv[1] == '\0')
{
sendto_one(sptr, err_str(ERR_NOORIGIN), me.name, parv[0]);
return 0;
}
origin = parv[1];
destination = parv[2];
cptr->flags &= ~FLAGS_PINGSENT;
sptr->flags &= ~FLAGS_PINGSENT;
/* Remote pongs for clients? uhh... */
if (MyClient(sptr) || !IsRegistered(sptr))
destination = NULL;
if (!BadPtr(destination) && mycmp(destination, me.name) != 0)
{
if ((acptr = find_client(destination, NULL)) ||
(acptr = find_server_quick(destination)))
{
if (!IsServer(cptr) && !IsServer(acptr))
{
sendto_one(sptr, err_str(ERR_NOSUCHSERVER),
me.name, parv[0], destination);
return 0;
}
else
sendto_one(acptr, ":%s PONG %s %s",
parv[0], origin, destination);
}
else
{
sendto_one(sptr, err_str(ERR_NOSUCHSERVER),
me.name, parv[0], destination);
return 0;
}
}
#ifdef DEBUGMODE
else
Debug((DEBUG_NOTICE, "PONG: %s %s", origin,
destination ? destination : "*"));
#endif
return 0;
}
