62 lines
1.2 KiB
C
62 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) Bull S.A. 2001
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* Copyright (c) International Business Machines Corp., 2001
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* Copyright (c) 2017 Cyril Hrubis <chrubis@suse.cz>
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*/
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/*
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* DESCRIPTION
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* Testcase for testing that fchdir(2) sets EACCES errno
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*
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* ALGORITHM
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* 1. create a child process, sets its uid to ltpuser1
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* 2. this child creates a directory with perm 400,
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* 3. this child opens the directory and gets a file descriptor
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* 4. this child attempts to fchdir(2) to the directory created in 2.
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* and expects to get an EACCES.
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*/
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#include <errno.h>
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#include <pwd.h>
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#include "tst_test.h"
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#define DIRNAME "fchdir03_dir"
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static int fd;
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void verify_fchdir(void)
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{
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TEST(fchdir(fd));
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if (TST_RET != -1) {
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tst_res(TFAIL, "fchdir() succeeded unexpectedly");
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return;
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}
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if (TST_ERR != EACCES) {
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tst_res(TFAIL | TTERRNO, "fchdir() should fail with EACCES");
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return;
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}
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tst_res(TPASS | TTERRNO, "fchdir() failed expectedly");
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}
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void setup(void)
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{
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struct passwd *pw;
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pw = SAFE_GETPWNAM("nobody");
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SAFE_SETEUID(pw->pw_uid);
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SAFE_MKDIR(DIRNAME, 0400);
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fd = SAFE_OPEN(DIRNAME, O_RDONLY);
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}
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static struct tst_test test = {
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.setup = setup,
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.test_all = verify_fchdir,
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.needs_tmpdir = 1,
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.needs_root = 1,
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};
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