1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
/* waitdaemon -- Verify that waitdaemon() is functional.
Copyright (C) 2010-2025 Free Software Foundation, Inc.
This file is part of GNU Inetutils.
GNU Inetutils is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
GNU Inetutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see `http://www.gnu.org/licenses/'. */
/* Verify that waitdaemon() in libinetutils.a is functional.
This is needed by syslogd.
*/
#include <config.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <signal.h>
#include <errno.h>
#include <error.h>
#include <progname.h>
#include <libinetutils.h>
#include <attribute.h>
extern int waitdaemon (int nochdir, int noclose, int maxwait);
void
doexit (int signo MAYBE_UNUSED)
{
_exit (EXIT_SUCCESS);
}
int
main (int argc MAYBE_UNUSED, char *argv[])
{
pid_t ppid;
set_program_name (argv[0]);
signal (SIGTERM, doexit); /* Parent exits nicely at SIGTERM. */
ppid = waitdaemon (0, 0, 5); /* Five seconds of delay. */
/* Child should return here before parent. */
if (ppid > 0)
kill (ppid, SIGTERM); /* Bless the parent process. */
/* Only grand child reaches this statement. */
return EXIT_FAILURE;
}
|
