70 lines
1.5 KiB
C
70 lines
1.5 KiB
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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* 07/2001 Ported by Wayne Boyer
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* Copyright (c) 2022 SUSE LLC Avinesh Kumar <avinesh.kumar@suse.com>
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*/
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/*\
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* [Description]
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*
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* Verify that rename() fails with EPERM or EACCES when the directory
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* containing oldpath has the sticky bit (S_ISVTX) set and the caller
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* is not privileged.
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*/
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#include <stdio.h>
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#include <pwd.h>
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#include "tst_test.h"
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#define MNT_POINT "mntpoint"
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#define TEMP_DIR "tempdir"
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#define TEMP_FILE1 TEMP_DIR"/tmpfile1"
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#define TEMP_FILE2 TEMP_DIR"/tmpfile2"
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static uid_t nobody_uid;
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static struct stat buf1;
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static 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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nobody_uid = pw->pw_uid;
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SAFE_CHDIR(MNT_POINT);
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SAFE_MKDIR(TEMP_DIR, 0777);
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SAFE_STAT(TEMP_DIR, &buf1);
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SAFE_CHMOD(TEMP_DIR, buf1.st_mode | S_ISVTX);
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SAFE_TOUCH(TEMP_FILE1, 0700, NULL);
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}
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static void run(void)
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{
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SAFE_SETEUID(nobody_uid);
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TEST(rename(TEMP_FILE1, TEMP_FILE2));
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if (TST_RET == -1 && (TST_ERR == EPERM || TST_ERR == EACCES))
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tst_res(TPASS | TTERRNO, "rename() failed as expected");
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else if (TST_RET == 0)
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tst_res(TFAIL, "rename() succeeded unexpectedly");
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else
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tst_res(TFAIL | TTERRNO, "rename() failed, but not with expected errno");
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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 = run,
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.needs_root = 1,
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.mntpoint = MNT_POINT,
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.mount_device = 1,
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.all_filesystems = 1,
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.skip_filesystems = (const char *const[]){
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"exfat",
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"vfat",
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"fuse",
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"ntfs",
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NULL
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},
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};
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