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/* Copyright (C) 2007-2012 Open Information Security Foundation
*
* You can copy, redistribute or modify this Program 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
* version 2 along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
/**
* \file
*
* \author Anoop Saldanha <anoopsaldanha@gmail.com>
*/
#include "suricata-common.h"
#include "suricata.h"
#include "util-debug.h"
#include "util-signal.h"
int UtilSignalBlock(int signum)
{
#ifndef OS_WIN32
sigset_t x;
if (sigemptyset(&x) < 0)
return -1;
if (sigaddset(&x, signum) < 0)
return -1;
/* don't use sigprocmask(), as it's undefined for
* multithreaded programs. Use phtread_sigmask().
*/
if (pthread_sigmask(SIG_BLOCK, &x, NULL) != 0)
return -1;
#endif
return 0;
}
int UtilSignalUnblock(int signum)
{
#ifndef OS_WIN32
sigset_t x;
if (sigemptyset(&x) < 0)
return -1;
if (sigaddset(&x, signum) < 0)
return -1;
if (pthread_sigmask(SIG_UNBLOCK, &x, NULL) != 0)
return -1;
#endif
return 0;
}
void UtilSignalHandlerSetup(int sig, void (*handler)(int))
{
#ifdef OS_WIN32
signal(sig, handler);
#else
struct sigaction action;
memset(&action, 0x00, sizeof(struct sigaction));
action.sa_handler = handler;
sigemptyset(&(action.sa_mask));
sigaddset(&(action.sa_mask),sig);
action.sa_flags = 0;
sigaction(sig, &action, 0);
#endif /* OS_WIN32 */
return;
}
#if 0
int UtilSignalIsHandler(int sig, void (*handler)(int))
{
struct sigaction action;
memset(&action, 0x00, sizeof(struct sigaction));
sigaction(sig, NULL, &action);
return (action.sa_handler == handler);
}
#endif
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