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/* This testcase is part of GDB, the GNU debugger.
Copyright 1997-2021 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 <unistd.h>
#include <limits.h>
#include <string.h>
int
main (int argc, char ** argv)
{
int pid;
/* A statement before vfork to make sure a breakpoint on main isn't
set on vfork below. */
pid = 1 + argc;
pid = vfork (); /* VFORK */
if (pid == 0) {
char prog[PATH_MAX];
int len;
strcpy (prog, argv[0]);
len = strlen (prog);
/* Replace "foll-vfork" with "vforked-prog". */
memcpy (prog + len - 10, "vforked-prog", 12);
prog[len + 2] = 0;
printf ("I'm the child!\n");
execlp (prog, prog, (char *) 0);
perror ("exec failed");
_exit (1);
}
else {
printf ("I'm the proud parent of child #%d!\n", pid);
}
}
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