unplugged-system/external/ltp/testcases/kernel/syscalls/setfsgid/setfsgid01.c

49 lines
903 B
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) International Business Machines Corp., 2001
* Ported by Wayne Boyer
* Copyright (c) 2022 SUSE LLC Avinesh Kumar <avinesh.kumar@suse.com>
*/
/*\
* [Description]
*
* Verify that setfsgid() correctly updates the filesystem group ID
* to the value given in fsgid argument.
*/
#include <pwd.h>
#include <unistd.h>
#include "tst_test.h"
#include "compat_tst_16.h"
static gid_t nobody_gid;
static void setup(void)
{
struct passwd *nobody;
nobody = SAFE_GETPWNAM("nobody");
nobody_gid = nobody->pw_gid;
}
static void run(void)
{
gid_t gid;
gid = getegid();
GID16_CHECK(gid, setfsgid);
SAFE_SETEUID(0);
TST_EXP_VAL(SETFSGID(nobody_gid), gid);
TST_EXP_VAL(SETFSGID(-1), nobody_gid);
TST_EXP_VAL_SILENT(SETFSGID(gid), nobody_gid);
}
static struct tst_test test = {
.setup = setup,
.test_all = run,
.needs_root = 1
};