1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 5 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1997-2016 The PHP Group |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 3.01 of the PHP license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.php.net/license/3_01.txt |
11 | If you did not receive a copy of the PHP license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@php.net so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Author: Jason Greene <jason@inetgurus.net> |
16 +----------------------------------------------------------------------+
17 */
18
19 /* $Id$ */
20
21 #include "TSRM.h"
22 #include "php_signal.h"
23 #include "Zend/zend.h"
24 #include "Zend/zend_signal.h"
25
26 /* php_signal using sigaction is derived from Advanced Programing
27 * in the Unix Environment by W. Richard Stevens p 298. */
28 Sigfunc *php_signal4(int signo, Sigfunc *func, int restart, int mask_all)
29 {
30 struct sigaction act,oact;
31 #ifdef ZEND_SIGNALS
32 TSRMLS_FETCH();
33 #endif
34 act.sa_handler = func;
35 if (mask_all) {
36 sigfillset(&act.sa_mask);
37 } else {
38 sigemptyset(&act.sa_mask);
39 }
40 act.sa_flags = 0;
41 if (signo == SIGALRM || (! restart)) {
42 #ifdef SA_INTERRUPT
43 act.sa_flags |= SA_INTERRUPT; /* SunOS */
44 #endif
45 } else {
46 #ifdef SA_RESTART
47 act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */
48 #endif
49 }
50 #ifdef ZEND_SIGNALS
51 if (zend_sigaction(signo, &act, &oact TSRMLS_CC) < 0)
52 #else
53 if (sigaction(signo, &act, &oact) < 0)
54 #endif
55 {
56 return SIG_ERR;
57 }
58
59 return oact.sa_handler;
60 }
61
62 Sigfunc *php_signal(int signo, Sigfunc *func, int restart)
63 {
64 return php_signal4(signo, func, restart, 0);
65 }
66
67 /*
68 * Local variables:
69 * tab-width: 4
70 * c-basic-offset: 4
71 * End:
72 * vim600: noet sw=4 ts=4 fdm=marker
73 * vim<600: noet sw=4 ts=4
74 */