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/*
* ircd-ratbox: A slightly useful ircd.
* m_error.c: Handles error messages from the other end.
*
* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
* Copyright (C) 1996-2002 Hybrid Development Team
* Copyright (C) 2002-2005 ircd-ratbox development team
*
* 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 2 of the License, 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
* $Id: m_error.c 494 2006-01-15 16:08:28Z jilles $
*/
#include "stdinc.h"
#include "client.h"
#include "common.h" /* FALSE */
#include "ircd.h"
#include "numeric.h"
#include "send.h"
#include "msg.h"
#include "modules.h"
#include "logger.h"
#include "s_conf.h"
static int m_error(struct Client *, struct Client *, int, const char **);
static int ms_error(struct Client *, struct Client *, int, const char **);
struct Message error_msgtab = {
"ERROR", 0, 0, 0, MFLG_SLOW | MFLG_UNREG,
{{m_error, 0}, mg_ignore, mg_ignore, {ms_error, 0}, mg_ignore, mg_ignore}
};
mapi_clist_av1 error_clist[] = {
&error_msgtab, NULL
};
DECLARE_MODULE_AV1(error, NULL, NULL, error_clist, NULL, NULL, "$Revision: 494 $");
/* Determine whether an ERROR message is safe to show (no IP address in it) */
static int
is_safe_error(const char *message)
{
char prefix2[100];
const char *p;
if (!strncmp(message, "Closing Link: 127.0.0.1 (", 25))
return 1;
rb_snprintf(prefix2, sizeof prefix2,
"Closing Link: 127.0.0.1 %s (", me.name);
if (!strncmp(message, prefix2, strlen(prefix2)))
return 1;
if (!strncmp(message, "Restart by ", 11))
return 1;
if (!strncmp(message, "Terminated by ", 14))
return 1;
if (!ircncmp(message, "Closing Link", 12))
return 0;
if (strchr(message, '['))
return 0;
p = strchr(message, '.');
if (p != NULL && p[1] != '\0')
return 0;
if (strchr(message, ':'))
return 0;
return 1;
}
/*
* Note: At least at protocol level ERROR has only one parameter,
* although this is called internally from other functions
* --msa
*
* parv[*] = parameters
*/
int
m_error(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
const char *para;
int hideit = ConfigFileEntry.hide_error_messages;
para = (parc > 1 && *parv[1] != '\0') ? parv[1] : "<>";
if (IsAnyServer(client_p))
{
ilog(L_SERVER, "Received ERROR message from %s: %s",
log_client_name(source_p, SHOW_IP), para);
}
if(is_safe_error(para))
hideit = 0;
if(IsAnyServer(client_p))
{
if (hideit < 2)
sendto_realops_snomask(SNO_GENERAL, hideit ? L_ADMIN : (is_remote_connect(client_p) ? L_NETWIDE : L_ALL),
"ERROR :from %s -- %s",
client_p->name, para);
if (hideit > 0)
sendto_realops_snomask(SNO_GENERAL, (hideit == 1 ? L_OPER : L_ALL) | (is_remote_connect(client_p) ? L_NETWIDE : L_ALL),
"ERROR :from %s -- <hidden>",
client_p->name);
}
exit_client(client_p, source_p, source_p, "ERROR");
return 0;
}
static int
ms_error(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
const char *para;
int hideit = ConfigFileEntry.hide_error_messages;
para = (parc > 1 && *parv[1] != '\0') ? parv[1] : "<>";
ilog(L_SERVER, "Received ERROR message from %s: %s",
log_client_name(source_p, SHOW_IP), para);
if(is_safe_error(para))
hideit = 0;
if(hideit == 2)
return 0;
if(client_p == source_p)
{
sendto_realops_snomask(SNO_GENERAL, hideit ? L_ADMIN : L_ALL, "ERROR :from %s -- %s",
client_p->name, para);
}
else
{
sendto_realops_snomask(SNO_GENERAL, hideit ? L_ADMIN : L_ALL, "ERROR :from %s via %s -- %s",
source_p->name, client_p->name, para);
}
return 0;
}
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