| /* |
| * Copyright (c) International Business Machines Corp., 2001 |
| * 07/2001 Ported by Wayne Boyer |
| * 06/2017 Modified by Guangwen Feng <fenggw-fnst@cn.fujitsu.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| * the GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| /* |
| * DESCRIPTION |
| * 1. open a new file without O_CREAT, ENOENT should be returned. |
| * 2. open a file with O_RDONLY | O_NOATIME and the caller was not |
| * privileged, EPERM should be returned. |
| */ |
| |
| #define _GNU_SOURCE |
| |
| #include <stdio.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <pwd.h> |
| #include "tst_test.h" |
| |
| #define TEST_FILE "test_file" |
| #define TEST_FILE2 "test_file2" |
| |
| static struct tcase { |
| char *filename; |
| int flag; |
| int exp_errno; |
| } tcases[] = { |
| {TEST_FILE, O_RDWR, ENOENT}, |
| {TEST_FILE2, O_RDONLY | O_NOATIME, EPERM}, |
| }; |
| |
| void setup(void) |
| { |
| struct passwd *ltpuser; |
| |
| SAFE_TOUCH(TEST_FILE2, 0644, NULL); |
| |
| ltpuser = SAFE_GETPWNAM("nobody"); |
| |
| SAFE_SETEUID(ltpuser->pw_uid); |
| } |
| |
| static void verify_open(unsigned int n) |
| { |
| struct tcase *tc = &tcases[n]; |
| |
| TEST(open(tc->filename, tc->flag, 0444)); |
| |
| if (TST_RET != -1) { |
| tst_res(TFAIL, "open(%s) succeeded unexpectedly", |
| tc->filename); |
| return; |
| } |
| |
| if (tc->exp_errno != TST_ERR) { |
| tst_res(TFAIL | TTERRNO, |
| "open() should fail with %s", |
| tst_strerrno(tc->exp_errno)); |
| return; |
| } |
| |
| tst_res(TPASS | TTERRNO, "open() failed as expected"); |
| } |
| |
| void cleanup(void) |
| { |
| SAFE_SETEUID(0); |
| } |
| |
| static struct tst_test test = { |
| .tcnt = ARRAY_SIZE(tcases), |
| .needs_root = 1, |
| .needs_tmpdir = 1, |
| .setup = setup, |
| .cleanup = cleanup, |
| .test = verify_open, |
| }; |