mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-25 06:20:06 +00:00
80 lines
2.2 KiB
C
80 lines
2.2 KiB
C
/* Test setgroups as root and in the presence of threads (Bug 26248)
|
|
Copyright (C) 2020-2023 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 <stdlib.h>
|
|
#include <limits.h>
|
|
#include <grp.h>
|
|
#include <errno.h>
|
|
#include <error.h>
|
|
#include <support/xthread.h>
|
|
#include <support/support.h>
|
|
#include <support/test-driver.h>
|
|
#include <support/xunistd.h>
|
|
|
|
/* The purpose of this test is to test the setgroups API as root and in
|
|
the presence of threads. Once we create a thread the setgroups
|
|
implementation must ensure that all threads are set to the same
|
|
group and this operation should not fail. Lastly we test setgroups
|
|
with a zero sized group and a bad address and verify we get EPERM. */
|
|
|
|
static void *
|
|
start_routine (void *args)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
int size;
|
|
/* NB: Stack address can be at 0xfffXXXXX on 32-bit OSes. */
|
|
gid_t list[NGROUPS_MAX];
|
|
int status = EXIT_SUCCESS;
|
|
|
|
pthread_t thread = xpthread_create (NULL, start_routine, NULL);
|
|
|
|
size = getgroups (sizeof (list) / sizeof (list[0]), list);
|
|
if (size < 0)
|
|
{
|
|
status = EXIT_FAILURE;
|
|
error (0, errno, "getgroups failed");
|
|
}
|
|
if (setgroups (size, list) < 0)
|
|
{
|
|
if (errno == EPERM)
|
|
status = EXIT_UNSUPPORTED;
|
|
else
|
|
{
|
|
status = EXIT_FAILURE;
|
|
error (0, errno, "setgroups failed");
|
|
}
|
|
}
|
|
|
|
if (status == EXIT_SUCCESS && setgroups (0, list) < 0)
|
|
{
|
|
status = EXIT_FAILURE;
|
|
error (0, errno, "setgroups failed");
|
|
}
|
|
|
|
xpthread_join (thread);
|
|
|
|
return status;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|