signals.c
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 /*
  * Copyright (C) 2001-2003 FhG Fokus
  *
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  * This file is part of Kamailio, a free SIP server.
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  *
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  * Kamailio is free software; you can redistribute it and/or modify
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  * 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
  *
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  * Kamailio is distributed in the hope that it will be useful,
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  * 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 
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  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
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  */
 
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 /*!
  * \file
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  * \brief Kamailio core :: Handle the signals
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  * \ingroup core
  * Module: \ref core
  */
 
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 #include "signals.h"
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 #include "dprint.h"
 
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 #include <signal.h>
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 #include <string.h> /* memset */
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 #ifdef USE_SIGACTION
 void (*set_sig_h(int sig, void (*handler) (int) ))(int)
 {
 	struct sigaction act;
 	struct sigaction old;
 	
 	memset(&act, 0, sizeof(act));
 	act.sa_handler=handler;
 	/*
 	sigemptyset(&act.sa_mask);
 	act.sa_flags=0;
 	*/
 	/* sa_sigaction not set, we use sa_hanlder instead */ 
 	return (sigaction (sig, &act, &old)==-1)?SIG_ERR:old.sa_handler;
 }
 #endif