52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 1997-2017 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <stdio.h>
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#include <unistd.h>
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#include <limits.h>
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#include <string.h>
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int
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main (int argc, char ** argv)
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{
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int pid;
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/* A statement before vfork to make sure a breakpoint on main isn't
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set on vfork below. */
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pid = 1 + argc;
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pid = vfork (); /* VFORK */
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if (pid == 0) {
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char prog[PATH_MAX];
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int len;
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strcpy (prog, argv[0]);
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len = strlen (prog);
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/* Replace "foll-vfork" with "vforked-prog". */
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memcpy (prog + len - 10, "vforked-prog", 12);
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prog[len + 2] = 0;
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printf ("I'm the child!\n");
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execlp (prog, prog, (char *) 0);
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perror ("exec failed");
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_exit (1);
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}
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else {
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printf ("I'm the proud parent of child #%d!\n", pid);
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}
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}
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