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/* Test program for opening already deleted running binaries.
Copyright (C) 2014 Red Hat, Inc.
This file is part of elfutils.
This file 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.
elfutils 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 <config.h>
#include <locale.h>
#include <stdlib.h>
#include <unistd.h>
#include <assert.h>
#include <stdio.h>
#include <errno.h>
#ifdef __linux__
#include <sys/prctl.h>
#endif
extern void libfunc (void);
#if !HAVE_DECL_FORK
int
main (int argc __attribute__ ((unused)), char **argv)
{
fprintf (stderr, "%s: fork() not supported for this architecture\n",
argv[0]);
return 77;
}
#else
int
main (int argc __attribute__ ((unused)), char **argv __attribute__ ((unused)))
{
/* Set locale. */
(void) setlocale (LC_ALL, "");
pid_t pid = fork ();
assert (pid != -1);
if (pid == 0)
{
int err = close (0);
assert (!err);
err = close (1);
assert (!err);
err = close (2);
assert (!err);
/* Make sure eu-stack -p works on this process even with
"restricted ptrace". */
#ifdef PR_SET_PTRACER_ANY
prctl(PR_SET_PTRACER, PR_SET_PTRACER_ANY, 0, 0, 0);
#endif
libfunc ();
abort ();
}
printf ("%d\n", pid);
return EXIT_SUCCESS;
}
#endif
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