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1/* Signal handler and mask set in thread which calls exec.
2 Copyright (C) 2003-2019 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
5
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
10
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <http://www.gnu.org/licenses/>. */
19
20#include <pthread.h>
21#include <signal.h>
22#include <stdio.h>
23#include <stdlib.h>
24#include <unistd.h>
25
26
27static void *
28tf (void *arg)
29{
30 /* Ignore SIGUSR1 and block SIGUSR2. */
31 if (sigignore (SIGUSR1) != 0)
32 {
33 puts ("sigignore failed");
34 exit (1);
35 }
36
37 sigset_t ss;
38 sigemptyset (&ss);
39 sigaddset (&ss, SIGUSR2);
40 if (pthread_sigmask (SIG_BLOCK, &ss, NULL) != 0)
41 {
42 puts ("1st run: sigmask failed");
43 exit (1);
44 }
45
46 char **oldargv = (char **) arg;
47 size_t n = 1;
48 while (oldargv[n] != NULL)
49 ++n;
50
51 char **argv = (char **) alloca ((n + 1) * sizeof (char *));
52 for (n = 0; oldargv[n + 1] != NULL; ++n)
53 argv[n] = oldargv[n + 1];
54 argv[n++] = (char *) "--direct";
55 argv[n] = NULL;
56
57 execv (argv[0], argv);
58
59 puts ("execv failed");
60
61 exit (1);
62}
63
64
65static int
66do_test (int argc, char *argv[])
67{
68 if (argc == 1)
69 {
70 /* This is the second call. Perform the test. */
71 struct sigaction sa;
72
73 if (sigaction (SIGUSR1, NULL, &sa) != 0)
74 {
75 puts ("2nd run: sigaction failed");
76 return 1;
77 }
78 if (sa.sa_handler != SIG_IGN)
79 {
80 puts ("SIGUSR1 not ignored");
81 return 1;
82 }
83
84 sigset_t ss;
85 if (pthread_sigmask (SIG_SETMASK, NULL, &ss) != 0)
86 {
87 puts ("2nd run: sigmask failed");
88 return 1;
89 }
90 if (! sigismember (&ss, SIGUSR2))
91 {
92 puts ("SIGUSR2 not blocked");
93 return 1;
94 }
95
96 return 0;
97 }
98
99 pthread_t th;
100 if (pthread_create (&th, NULL, tf, argv) != 0)
101 {
102 puts ("create failed");
103 exit (1);
104 }
105
106 /* This call should never return. */
107 pthread_join (th, NULL);
108
109 puts ("join returned");
110
111 return 1;
112}
113
114#define TEST_FUNCTION do_test (argc, argv)
115#include "../test-skeleton.c"
116

Warning: That file was not part of the compilation database. It may have many parsing errors.