glibc/nss/tst-nss-test_errno.c

62 lines
1.7 KiB
C

/* getpwent failure when dlopen clobbers errno (bug 28953).
Copyright (C) 2022-2023 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 <nss.h>
#include <support/check.h>
#include <stdlib.h>
#include <errno.h>
#include <stdbool.h>
#include <pwd.h>
#include <string.h>
static int
do_test (void)
{
__nss_configure_lookup ("passwd", "files test_errno");
errno = 0;
setpwent ();
TEST_COMPARE (errno, 0);
bool root_seen = false;
while (true)
{
errno = 0;
struct passwd *e = getpwent ();
if (e == NULL)
break;
if (strcmp (e->pw_name, "root"))
root_seen = true;
}
TEST_COMPARE (errno, 0);
TEST_VERIFY (root_seen);
errno = 0;
endpwent ();
TEST_COMPARE (errno, 0);
TEST_COMPARE_STRING (getenv ("_nss_test_errno_setpwent"), "yes");
TEST_COMPARE_STRING (getenv ("_nss_test_errno_getpwent_r"), "yes");
TEST_COMPARE_STRING (getenv ("_nss_test_errno_endpwent"), "yes");
return 0;
}
#include <support/test-driver.c>