glibc/stdlib/tst-empty-env.c
Paul Eggert 2b778ceb40 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master
2021-01-02 12:17:34 -08:00

58 lines
1.9 KiB
C

/* Test that passing a NULL value does not hang environment traversal in
tunables.
Copyright (C) 2017-2021 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
<https://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 TEST_FUNCTION_ARGV do_test
#include <support/test-driver.c>