mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-30 08:40:07 +00:00
78 lines
2.1 KiB
C
78 lines
2.1 KiB
C
/* Check that strerror, strerror_l do not return NULL on failure (bug 30555).
|
|
Copyright (C) 2023-2024 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/>. */
|
|
|
|
|
|
#include <locale.h>
|
|
#include <stdbool.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <support/check.h>
|
|
#include <support/namespace.h>
|
|
#include <support/xdlfcn.h>
|
|
|
|
/* Interposed malloc that can be used to inject allocation failures. */
|
|
|
|
static volatile bool fail_malloc;
|
|
|
|
void *
|
|
malloc (size_t size)
|
|
{
|
|
if (fail_malloc)
|
|
return NULL;
|
|
|
|
static void *(*original_malloc) (size_t);
|
|
if (original_malloc == NULL)
|
|
original_malloc = xdlsym (RTLD_NEXT, "malloc");
|
|
return original_malloc (size);
|
|
}
|
|
|
|
/* Callbacks for the actual tests. Use fork to run both tests with a
|
|
clean state. */
|
|
|
|
static void
|
|
test_strerror (void *closure)
|
|
{
|
|
fail_malloc = true;
|
|
const char *s = strerror (999);
|
|
fail_malloc = false;
|
|
TEST_COMPARE_STRING (s, "Unknown error");
|
|
}
|
|
|
|
static void
|
|
test_strerror_l (void *closure)
|
|
{
|
|
locale_t loc = newlocale (LC_ALL, "C", (locale_t) 0);
|
|
TEST_VERIFY (loc != (locale_t) 0);
|
|
fail_malloc = true;
|
|
const char *s = strerror_l (999, loc);
|
|
fail_malloc = false;
|
|
TEST_COMPARE_STRING (s, "Unknown error");
|
|
freelocale (loc);
|
|
}
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
support_isolate_in_subprocess (test_strerror, NULL);
|
|
support_isolate_in_subprocess (test_strerror_l, NULL);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|