| /* |
| * Copyright (c) 2014 Fujitsu Ltd. |
| * Author: Zeng Linggang <zenglg.jy@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 Library 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| * |
| */ |
| /* |
| * Test Description: |
| * Verify that, |
| * 1. bufsiz is 0, EINVAL should be returned. |
| * 2. The named file is not a symbolic link, EINVAL should be returned. |
| * 3. The component of the path prefix is not a directory, ENOTDIR should be |
| * returned. |
| * 4. pathname is relative and dirfd is a file descriptor referring to a file |
| * other than a directory, ENOTDIR should be returned. |
| */ |
| |
| #include <fcntl.h> |
| #include <unistd.h> |
| #include <errno.h> |
| |
| #include "test.h" |
| #include "safe_macros.h" |
| #include "lapi/readlinkat.h" |
| #include "linux_syscall_numbers.h" |
| |
| #define TEST_FILE "test_file" |
| #define SYMLINK_FILE "symlink_file" |
| #define BUFF_SIZE 256 |
| |
| static int file_fd, dir_fd; |
| |
| static struct test_case_t { |
| int *dirfd; |
| const char *pathname; |
| size_t bufsiz; |
| int exp_errno; |
| } test_cases[] = { |
| {&dir_fd, SYMLINK_FILE, 0, EINVAL}, |
| {&dir_fd, TEST_FILE, BUFF_SIZE, EINVAL}, |
| {&file_fd, SYMLINK_FILE, BUFF_SIZE, ENOTDIR}, |
| {&dir_fd, "test_file/test_file", BUFF_SIZE, ENOTDIR}, |
| }; |
| |
| char *TCID = "readlinkat02"; |
| int TST_TOTAL = ARRAY_SIZE(test_cases); |
| static void setup(void); |
| static void cleanup(void); |
| static void readlinkat_verify(const struct test_case_t *); |
| |
| int main(int argc, char **argv) |
| { |
| int i, lc; |
| const char *msg; |
| |
| msg = parse_opts(argc, argv, NULL, NULL); |
| if (msg != NULL) |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| |
| setup(); |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| tst_count = 0; |
| for (i = 0; i < TST_TOTAL; i++) |
| readlinkat_verify(&test_cases[i]); |
| } |
| |
| cleanup(); |
| tst_exit(); |
| } |
| |
| static void setup(void) |
| { |
| tst_sig(NOFORK, DEF_HANDLER, cleanup); |
| |
| TEST_PAUSE; |
| |
| tst_tmpdir(); |
| |
| dir_fd = SAFE_OPEN(cleanup, "./", O_RDONLY); |
| |
| file_fd = SAFE_OPEN(cleanup, TEST_FILE, O_RDWR | O_CREAT, 0644); |
| |
| SAFE_SYMLINK(cleanup, TEST_FILE, SYMLINK_FILE); |
| } |
| |
| static void readlinkat_verify(const struct test_case_t *test) |
| { |
| char buf[BUFF_SIZE]; |
| TEST(readlinkat(*test->dirfd, test->pathname, buf, test->bufsiz)); |
| |
| if (TEST_RETURN != -1) { |
| tst_resm(TFAIL, "readlinkat succeeded unexpectedly"); |
| return; |
| } |
| |
| if (TEST_ERRNO == test->exp_errno) { |
| tst_resm(TPASS | TTERRNO, "readlinkat failed as expected"); |
| } else { |
| tst_resm(TFAIL | TTERRNO, |
| "readlinkat failed unexpectedly; expected: %d - %s", |
| test->exp_errno, strerror(test->exp_errno)); |
| } |
| } |
| |
| static void cleanup(void) |
| { |
| tst_rmdir(); |
| } |