/* +----------------------------------------------------------------------+ | PHP Version 5 | +----------------------------------------------------------------------+ | Copyright (c) 1997-2008 The PHP Group | +----------------------------------------------------------------------+ | This source file is subject to version 3.01 of the PHP license, | | that is bundled with this package in the file LICENSE, and is | | available through the world-wide-web at the following url: | | http://www.php.net/license/3_01.txt | | If you did not receive a copy of the PHP license and are unable to | | obtain it through the world-wide-web, please send a note to | | license@php.net so we can mail you a copy immediately. | +----------------------------------------------------------------------+ | Author: Jason Greene <jason@inetgurus.net> | +----------------------------------------------------------------------+ */ /* $Id: php_signal.c,v 1.9.2.1.2.2 2007/12/31 07:20:09 sebastian Exp $ */ #include "php_signal.h" /* php_signal using sigaction is derrived from Advanced Programing * in the Unix Environment by W. Richard Stevens p 298. */ Sigfunc *php_signal(int signo, Sigfunc *func, int restart) { struct sigaction act,oact; act.sa_handler = func; sigemptyset(&act.sa_mask); act.sa_flags = 0; if (signo == SIGALRM || (! restart)) { #ifdef SA_INTERRUPT act.sa_flags |= SA_INTERRUPT; /* SunOS */ #endif } else { #ifdef SA_RESTART act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ #endif } if (sigaction(signo, &act, &oact) < 0) return SIG_ERR; return oact.sa_handler; }