59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
/* Test that passing a NULL value does not hang environment traversal in
|
|
tunables.
|
|
Copyright (C) 2017 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
/* The test is useful only when the source is configured with
|
|
--enable-hardcoded-path-in-tests since otherwise the execve just picks up
|
|
the system dynamic linker. */
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
|
|
static int
|
|
do_test (int argc, char **argv)
|
|
{
|
|
if (argc == 2)
|
|
return 0;
|
|
|
|
char envname[] = "FOOBAR";
|
|
char *filename = program_invocation_name;
|
|
char *newargv[] = {filename, filename, NULL};
|
|
char *newenviron[] = {envname, NULL};
|
|
|
|
/* This was reported in Fedora:
|
|
|
|
https://bugzilla.redhat.com/show_bug.cgi?id=1414589
|
|
|
|
If one of the environment variables has no value, then the environment
|
|
traversal must skip and also advance to the next environment entry. The
|
|
bug in question would cause this test to hang in an infinite loop. */
|
|
int ret = execve (filename, newargv, newenviron);
|
|
|
|
if (ret != 0)
|
|
printf ("execve failed: %m");
|
|
|
|
/* We will reach here only if we fail execve. */
|
|
return 1;
|
|
}
|
|
|
|
#define TIMEOUT 3
|
|
#define TEST_FUNCTION_ARGV do_test
|
|
#include <support/test-driver.c>
|