1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 7 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1997-2018 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. */
php_signal4(int signo,Sigfunc * func,int restart,int mask_all)28 Sigfunc *php_signal4(int signo, Sigfunc *func, int restart, int mask_all)
29 {
30 struct sigaction act,oact;
31
32 #ifdef HAVE_STRUCT_SIGINFO_T
33 act.sa_sigaction = func;
34 #else
35 act.sa_handler = func;
36 #endif
37 if (mask_all) {
38 sigfillset(&act.sa_mask);
39 } else {
40 sigemptyset(&act.sa_mask);
41 }
42 act.sa_flags = 0;
43 #ifdef HAVE_STRUCT_SIGINFO_T
44 act.sa_flags |= SA_SIGINFO;
45 #endif
46 if (signo == SIGALRM || (! restart)) {
47 #ifdef SA_INTERRUPT
48 act.sa_flags |= SA_INTERRUPT; /* SunOS */
49 #endif
50 } else {
51 #ifdef SA_RESTART
52 act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */
53 #endif
54 }
55 if (zend_sigaction(signo, &act, &oact) < 0) {
56 return (Sigfunc*)SIG_ERR;
57 }
58
59 #ifdef HAVE_STRUCT_SIGINFO_T
60 return oact.sa_sigaction;
61 #else
62 return oact.sa_handler;
63 #endif
64 }
65
php_signal(int signo,Sigfunc * func,int restart)66 Sigfunc *php_signal(int signo, Sigfunc *func, int restart)
67 {
68 return php_signal4(signo, func, restart, 0);
69 }
70
71 /*
72 * Local variables:
73 * tab-width: 4
74 * c-basic-offset: 4
75 * End:
76 * vim600: noet sw=4 ts=4 fdm=marker
77 * vim<600: noet sw=4 ts=4
78 */
79
