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6f1acb30 | 1 | /* Signal handler and mask set in thread which calls exec. |
d614a753 | 2 | Copyright (C) 2003-2020 Free Software Foundation, Inc. |
6f1acb30 UD |
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 | |
59ba27a6 | 17 | License along with the GNU C Library; if not, see |
5a82c748 | 18 | <https://www.gnu.org/licenses/>. */ |
6f1acb30 UD |
19 | |
20 | #include <pthread.h> | |
21 | #include <signal.h> | |
22 | #include <stdio.h> | |
23 | #include <stdlib.h> | |
24 | #include <unistd.h> | |
02802faf | 25 | #include <support/xsignal.h> |
6f1acb30 UD |
26 | |
27 | static void * | |
28 | tf (void *arg) | |
29 | { | |
30 | /* Ignore SIGUSR1 and block SIGUSR2. */ | |
02802faf | 31 | xsignal (SIGUSR1, SIG_IGN); |
6f1acb30 UD |
32 | |
33 | sigset_t ss; | |
34 | sigemptyset (&ss); | |
35 | sigaddset (&ss, SIGUSR2); | |
36 | if (pthread_sigmask (SIG_BLOCK, &ss, NULL) != 0) | |
37 | { | |
38 | puts ("1st run: sigmask failed"); | |
39 | exit (1); | |
40 | } | |
41 | ||
42 | char **oldargv = (char **) arg; | |
43 | size_t n = 1; | |
44 | while (oldargv[n] != NULL) | |
45 | ++n; | |
46 | ||
47 | char **argv = (char **) alloca ((n + 1) * sizeof (char *)); | |
48 | for (n = 0; oldargv[n + 1] != NULL; ++n) | |
49 | argv[n] = oldargv[n + 1]; | |
50 | argv[n++] = (char *) "--direct"; | |
51 | argv[n] = NULL; | |
52 | ||
53 | execv (argv[0], argv); | |
54 | ||
55 | puts ("execv failed"); | |
56 | ||
57 | exit (1); | |
58 | } | |
59 | ||
60 | ||
61 | static int | |
62 | do_test (int argc, char *argv[]) | |
63 | { | |
64 | if (argc == 1) | |
65 | { | |
66 | /* This is the second call. Perform the test. */ | |
67 | struct sigaction sa; | |
68 | ||
69 | if (sigaction (SIGUSR1, NULL, &sa) != 0) | |
70 | { | |
71 | puts ("2nd run: sigaction failed"); | |
72 | return 1; | |
73 | } | |
74 | if (sa.sa_handler != SIG_IGN) | |
75 | { | |
76 | puts ("SIGUSR1 not ignored"); | |
77 | return 1; | |
78 | } | |
79 | ||
80 | sigset_t ss; | |
81 | if (pthread_sigmask (SIG_SETMASK, NULL, &ss) != 0) | |
82 | { | |
83 | puts ("2nd run: sigmask failed"); | |
84 | return 1; | |
85 | } | |
86 | if (! sigismember (&ss, SIGUSR2)) | |
87 | { | |
88 | puts ("SIGUSR2 not blocked"); | |
89 | return 1; | |
90 | } | |
91 | ||
92 | return 0; | |
93 | } | |
94 | ||
95 | pthread_t th; | |
96 | if (pthread_create (&th, NULL, tf, argv) != 0) | |
97 | { | |
98 | puts ("create failed"); | |
99 | exit (1); | |
100 | } | |
101 | ||
102 | /* This call should never return. */ | |
103 | pthread_join (th, NULL); | |
104 | ||
105 | puts ("join returned"); | |
106 | ||
107 | return 1; | |
108 | } | |
109 | ||
110 | #define TEST_FUNCTION do_test (argc, argv) | |
111 | #include "../test-skeleton.c" |