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/* Nessus
* Copyright (C) 1998 - 2004 Renaud Deraison
*
* Adapted for the Netbios Auditing Tool by Javier Fernandez-Sanguino
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2,
* as published by the Free Software Foundation
*
* 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.
*
*
* Signals handlers
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "sighandler.h"
#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_RESOURCE_H
#include <sys/resource.h>
#endif
extern void close_sockets(void);
void (*set_signal(int signum, void (*handler)(int)))(int)
{
struct sigaction saNew,saOld;
/* Init new handler */
sigfillset(&saNew.sa_mask);
sigdelset(&saNew.sa_mask, SIGALRM); /* make sleep() work */
saNew.sa_flags = 0;
# ifdef HAVE_SIGNAL_SA_RESTORER
saNew.sa_restorer = 0; /* not avail on Solaris - jordan */
# endif
saNew.sa_handler = handler;
sigaction(signum, &saNew, &saOld);
return saOld.sa_handler;
}
void sighandler(sign)
int sign;
{
char * sig = NULL;
int murderer = 0;
switch(sign)
{
case SIGTERM:
sig = "TERM";
close_sockets();
break;
case SIGINT :
sig = "INT";
close_sockets();
break;
case SIGPIPE :
sig = "PIPE";
close_sockets();
break;
case SIGSEGV :
#ifdef HAVE__EXIT
signal(SIGSEGV, _exit);
#else
signal(SIGSEGV, exit);
#endif
sig = "SEGV";
break;
default:
sig = "unknown signal";
}
fprintf(stderr, "Received signal %s!\n", sig);
#ifdef HAVE__EXIT
_exit(1);
#else
exit(1);
#endif
}
void sighand_segv()
{
#ifdef HAVE__EXIT
signal(SIGSEGV, _exit);
#else
signal(SIGSEGV, exit);
#endif
fprintf(stderr, "Received SIGSEGV!\n");
#ifdef HAVE__EXIT
_exit(1);
#else
exit(1);
#endif
}
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