unplugged-system/external/ltp/testcases/kernel/syscalls/setregid/setregid01.c

63 lines
1.3 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
*
* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
* Mountain View, CA 94043, or:
*
* http://www.sgi.com
*
* For further information regarding this notice, see:
*
* http://oss.sgi.com/projects/GenInfo/NoticeExplan/
*
* Author: William Roske
* Co-pilot: Dave Fenner
*/
/*\
* [Description]
*
* Verify the basic functionality of setregid(2) system call.
*/
#include "tst_test.h"
#include "compat_tst_16.h"
static gid_t gid, egid;
static gid_t neg_one = -1;
static struct tcase {
gid_t *arg1;
gid_t *arg2;
const char *msg;
} tcases[] = {
{&neg_one, &neg_one, "Leave real and effective both gids unchanged" },
{&neg_one, &egid, "Change effective to effective gid" },
{&gid, &neg_one, "Change real to real gid" },
{&neg_one, &gid, "Change effective to real gid" },
{&gid, &gid, "Change real and effective both gids to current real gid" }
};
static void run(unsigned int n)
{
struct tcase *tc = &tcases[n];
TST_EXP_PASS(SETREGID(*tc->arg1, *tc->arg2), "%s:", tc->msg);
}
static void setup(void)
{
gid = getgid();
GID16_CHECK(gid, setregid);
egid = getegid();
GID16_CHECK(egid, setregid);
}
static struct tst_test test = {
.tcnt = ARRAY_SIZE(tcases),
.test = run,
.setup = setup,
};