46 lines
804 B
C
46 lines
804 B
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) International Business Machines Corp., 2001
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* Copyright (c) Linux Test Project, 2009-2022
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*/
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/*\
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* [Description]
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*
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* This test will switch to nobody user for correct error code collection.
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* Verify setuid returns errno EPERM when it switches to root_user.
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*/
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#include <errno.h>
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#include <pwd.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include "tst_test.h"
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#include "compat_tst_16.h"
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#define ROOT_USER 0
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static void verify_setuid(void)
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{
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TST_EXP_FAIL(SETUID(ROOT_USER), EPERM);
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}
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static void setup(void)
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{
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struct passwd *pw;
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uid_t uid;
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pw = SAFE_GETPWNAM("nobody");
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uid = pw->pw_uid;
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SAFE_SETUID(uid);
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umask(0);
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}
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static struct tst_test test = {
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.setup = setup,
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.needs_root = 1,
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.test_all = verify_setuid,
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};
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