]>
Commit | Line | Data |
---|---|---|
6f1acb30 | 1 | /* Signal handler and mask set in thread which calls exec. |
2b778ceb | 2 | Copyright (C) 2003-2021 Free Software Foundation, Inc. |
6f1acb30 | 3 | This file is part of the GNU C Library. |
6f1acb30 UD |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
6f1acb30 UD |
18 | |
19 | #include <pthread.h> | |
20 | #include <signal.h> | |
21 | #include <stdio.h> | |
22 | #include <stdlib.h> | |
23 | #include <unistd.h> | |
02802faf | 24 | #include <support/xsignal.h> |
6f1acb30 UD |
25 | |
26 | static void * | |
27 | tf (void *arg) | |
28 | { | |
29 | /* Ignore SIGUSR1 and block SIGUSR2. */ | |
02802faf | 30 | xsignal (SIGUSR1, SIG_IGN); |
6f1acb30 UD |
31 | |
32 | sigset_t ss; | |
33 | sigemptyset (&ss); | |
34 | sigaddset (&ss, SIGUSR2); | |
35 | if (pthread_sigmask (SIG_BLOCK, &ss, NULL) != 0) | |
36 | { | |
37 | puts ("1st run: sigmask failed"); | |
38 | exit (1); | |
39 | } | |
40 | ||
41 | char **oldargv = (char **) arg; | |
42 | size_t n = 1; | |
43 | while (oldargv[n] != NULL) | |
44 | ++n; | |
45 | ||
46 | char **argv = (char **) alloca ((n + 1) * sizeof (char *)); | |
47 | for (n = 0; oldargv[n + 1] != NULL; ++n) | |
48 | argv[n] = oldargv[n + 1]; | |
49 | argv[n++] = (char *) "--direct"; | |
50 | argv[n] = NULL; | |
51 | ||
52 | execv (argv[0], argv); | |
53 | ||
54 | puts ("execv failed"); | |
55 | ||
56 | exit (1); | |
57 | } | |
58 | ||
59 | ||
60 | static int | |
61 | do_test (int argc, char *argv[]) | |
62 | { | |
63 | if (argc == 1) | |
64 | { | |
65 | /* This is the second call. Perform the test. */ | |
66 | struct sigaction sa; | |
67 | ||
68 | if (sigaction (SIGUSR1, NULL, &sa) != 0) | |
69 | { | |
70 | puts ("2nd run: sigaction failed"); | |
71 | return 1; | |
72 | } | |
73 | if (sa.sa_handler != SIG_IGN) | |
74 | { | |
75 | puts ("SIGUSR1 not ignored"); | |
76 | return 1; | |
77 | } | |
78 | ||
79 | sigset_t ss; | |
80 | if (pthread_sigmask (SIG_SETMASK, NULL, &ss) != 0) | |
81 | { | |
82 | puts ("2nd run: sigmask failed"); | |
83 | return 1; | |
84 | } | |
85 | if (! sigismember (&ss, SIGUSR2)) | |
86 | { | |
87 | puts ("SIGUSR2 not blocked"); | |
88 | return 1; | |
89 | } | |
90 | ||
91 | return 0; | |
92 | } | |
93 | ||
94 | pthread_t th; | |
95 | if (pthread_create (&th, NULL, tf, argv) != 0) | |
96 | { | |
97 | puts ("create failed"); | |
98 | exit (1); | |
99 | } | |
100 | ||
101 | /* This call should never return. */ | |
102 | pthread_join (th, NULL); | |
103 | ||
104 | puts ("join returned"); | |
105 | ||
106 | return 1; | |
107 | } | |
108 | ||
109 | #define TEST_FUNCTION do_test (argc, argv) | |
110 | #include "../test-skeleton.c" |