46 lines
834 B
C
46 lines
834 B
C
// 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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* Ported by Wayne Boyer
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*/
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/*\
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* [Description]
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*
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* Test if setgid() system call sets errno to EPERM correctly.
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*
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* [Algorithm]
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*
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* Call setgid() to set the gid to that of root. Run this test as
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* nobody, and expect to get EPERM.
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*/
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#include <pwd.h>
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#include "tst_test.h"
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#include "compat_tst_16.h"
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static void run(void)
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{
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struct passwd *rootpwent;
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rootpwent = SAFE_GETPWNAM("root");
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GID16_CHECK(rootpwent->pw_gid, setgid);
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TST_EXP_FAIL(SETGID(rootpwent->pw_gid), EPERM);
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}
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static void setup(void)
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{
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struct passwd *nobody = SAFE_GETPWNAM("nobody");
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SAFE_SETGID(nobody->pw_gid);
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SAFE_SETUID(nobody->pw_uid);
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}
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static struct tst_test test = {
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.needs_root = 1,
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.setup = setup,
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.test_all = run,
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};
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