60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
/* This testcase is part of GDB, the GNU debugger.
|
|
|
|
Copyright 2012-2016 Free Software Foundation, Inc.
|
|
|
|
This program 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.
|
|
|
|
This program 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/>. */
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <signal.h>
|
|
#include <sys/wait.h>
|
|
#include <unistd.h>
|
|
|
|
void
|
|
do_nothing (void)
|
|
{
|
|
}
|
|
|
|
void
|
|
handle (int sig)
|
|
{
|
|
do_nothing (); /* handle marker */
|
|
}
|
|
|
|
int
|
|
main ()
|
|
{
|
|
int i;
|
|
signal (SIGHUP, handle);
|
|
|
|
raise (SIGHUP); /* first HUP */
|
|
|
|
signal (SIGCHLD, handle);
|
|
for (i = 0; i < 3; i++) /* fork loop */
|
|
{
|
|
switch (fork())
|
|
{
|
|
case -1:
|
|
perror ("fork");
|
|
exit (1);
|
|
case 0:
|
|
exit (0);
|
|
}
|
|
wait (NULL);
|
|
}
|
|
|
|
raise (SIGHUP); /* second HUP */
|
|
|
|
raise (SIGHUP); /* third HUP */
|
|
}
|
|
|