1 /* Test all open message queues descriptors are closed during exec*.
2 Copyright (C) 2004-2019 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
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.
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.
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/>. */
30 #define OPT_AFTEREXEC 20000
32 static mqd_t after_exec
= (mqd_t
) -1;
34 #define CMDLINE_OPTIONS \
35 { "after-exec", required_argument, NULL, OPT_AFTEREXEC },
37 #define CMDLINE_PROCESS \
39 after_exec = (mqd_t) strtoul (optarg, NULL, 0); \
48 if (mq_getattr (after_exec
, &attr
) == 0)
50 puts ("mq_getattr after exec unexpectedly succeeded");
53 else if (errno
!= EBADF
)
55 printf ("mq_getattr after exec did not fail with EBADF: %m\n");
63 do_test (int argc
, char **argv
)
65 if (after_exec
!= (mqd_t
) -1)
66 return do_after_exec ();
68 char name
[sizeof "/tst-mqueue7-" + sizeof (pid_t
) * 3];
69 snprintf (name
, sizeof (name
), "/tst-mqueue7-%u", getpid ());
71 struct mq_attr attr
= { .mq_maxmsg
= 10, .mq_msgsize
= 1 };
72 mqd_t q
= mq_open (name
, O_CREAT
| O_EXCL
| O_WRONLY
, 0600, &attr
);
76 printf ("mq_open failed with: %m\n");
79 else if (mq_unlink (name
) != 0)
81 printf ("mq_unlink failed with: %m\n");
85 if (mq_getattr (q
, &attr
) != 0)
87 printf ("mq_getattr failed: %m\n");
91 char after_exec_arg
[sizeof "--after-exec=0x" + sizeof (long) * 3];
92 snprintf (after_exec_arg
, sizeof (after_exec_arg
),
93 "--after-exec=0x%lx", (long) q
);
95 const char *newargv
[argc
+ 2];
96 for (int i
= 1; i
< argc
; ++i
)
97 newargv
[i
- 1] = argv
[i
];
98 newargv
[argc
- 1] = "--direct";
99 newargv
[argc
] = after_exec_arg
;
100 newargv
[argc
+ 1] = NULL
;
102 /* Verify that exec* has the effect of mq_close (q). */
103 execv (newargv
[0], (char * const *) newargv
);
104 printf ("execv failed: %m\n");
108 #include "../test-skeleton.c"