| /* |
| * |
| * Copyright (c) International Business Machines Corp., 2001 |
| * |
| * 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 |
| */ |
| |
| /* |
| * Test Description: |
| * Verify that, |
| * 1. access() fails with -1 return value and sets errno to EACCES |
| * if the permission bits of the file mode do not permit the |
| * requested (Read/Write/Execute) access. |
| * 2. access() fails with -1 return value and sets errno to EINVAL |
| * if the specified access mode argument is invalid. |
| * 3. access() fails with -1 return value and sets errno to EFAULT |
| * if the pathname points outside allocate address space for the |
| * process. |
| * 4. access() fails with -1 return value and sets errno to ENOENT |
| * if the specified file doesn't exist (or pathname is NULL). |
| * 5. access() fails with -1 return value and sets errno to ENAMETOOLONG |
| * if the pathname size is > PATH_MAX characters. |
| * 6. access() fails with -1 return value and sets errno to ENOTDIR |
| * if a component used as a directory in pathname is not a directory. |
| * 7. access() fails with -1 return value and sets errno to ELOOP |
| * if too many symbolic links were encountered in resolving pathname. |
| * |
| * 07/2001 Ported by Wayne Boyer |
| */ |
| |
| #include <stdio.h> |
| #include <errno.h> |
| #include <unistd.h> |
| #include <fcntl.h> |
| #include <string.h> |
| #include <signal.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <sys/mman.h> |
| #include <pwd.h> |
| |
| #include "test.h" |
| #include "safe_macros.h" |
| |
| #define INV_OK -1 |
| #define TEST_FILE1 "test_file1" |
| #define TEST_FILE2 "test_file2" |
| #define TEST_FILE3 "test_file3" |
| #define TEST_FILE4 "test_file4" |
| #define TEST_FILE5 "test_file5/test_file5" |
| #define TEST_FILE6 "test_file6" |
| |
| |
| #if !defined(UCLINUX) |
| static char high_address_node[64]; |
| #endif |
| |
| static char longpathname[PATH_MAX + 2]; |
| |
| static struct test_case_t { |
| char *pathname; |
| int a_mode; |
| int exp_errno; |
| } test_cases[] = { |
| {TEST_FILE1, R_OK, EACCES}, |
| {TEST_FILE2, W_OK, EACCES}, |
| {TEST_FILE3, X_OK, EACCES}, |
| {TEST_FILE4, INV_OK, EINVAL}, |
| #if !defined(UCLINUX) |
| {(char *)-1, R_OK, EFAULT}, |
| {high_address_node, R_OK, EFAULT}, |
| #endif |
| {"", W_OK, ENOENT}, |
| {longpathname, R_OK, ENAMETOOLONG}, |
| {TEST_FILE5, R_OK, ENOTDIR}, |
| {TEST_FILE6, R_OK, ELOOP}, |
| }; |
| |
| char *TCID = "access05"; |
| int TST_TOTAL = ARRAY_SIZE(test_cases); |
| |
| static const char nobody_uid[] = "nobody"; |
| static struct passwd *ltpuser; |
| |
| static void setup(void); |
| static void access_verify(int i); |
| static void cleanup(void); |
| |
| static char *bad_addr; |
| |
| int main(int ac, char **av) |
| { |
| int lc; |
| const char *msg; |
| int i; |
| |
| msg = parse_opts(ac, av, 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++) |
| access_verify(i); |
| } |
| |
| cleanup(); |
| tst_exit(); |
| } |
| |
| static void setup(void) |
| { |
| int fd; |
| |
| tst_sig(NOFORK, DEF_HANDLER, cleanup); |
| tst_require_root(NULL); |
| |
| ltpuser = SAFE_GETPWNAM(cleanup, nobody_uid); |
| SAFE_SETUID(cleanup, ltpuser->pw_uid); |
| TEST_PAUSE; |
| |
| #if !defined(UCLINUX) |
| bad_addr = mmap(0, 1, PROT_NONE, |
| MAP_PRIVATE_EXCEPT_UCLINUX | MAP_ANONYMOUS, 0, 0); |
| if (bad_addr == MAP_FAILED) |
| tst_brkm(TBROK | TERRNO, NULL, "mmap failed"); |
| test_cases[4].pathname = bad_addr; |
| |
| test_cases[5].pathname = get_high_address(); |
| #endif |
| |
| tst_tmpdir(); |
| |
| /* |
| * create TEST_FILE1 to test R_OK EACCESS |
| */ |
| fd = SAFE_CREAT(cleanup, TEST_FILE1, 0333); |
| SAFE_CLOSE(cleanup, fd); |
| |
| /* |
| * create TEST_FILE2 to test W_OK EACCESS |
| */ |
| fd = SAFE_CREAT(cleanup, TEST_FILE2, 0555); |
| SAFE_CLOSE(cleanup, fd); |
| |
| /* |
| * create TEST_FILE3 to test X_OK EACCESS |
| */ |
| fd = SAFE_CREAT(cleanup, TEST_FILE3, 0666); |
| SAFE_CLOSE(cleanup, fd); |
| |
| /* |
| * create TEST_FILE4 to test EINVAL |
| */ |
| fd = SAFE_CREAT(cleanup, TEST_FILE4, 0333); |
| SAFE_CLOSE(cleanup, fd); |
| |
| /* |
| *setup to create a node with a name length exceeding |
| *the MAX length of PATH_MAX. |
| */ |
| memset(longpathname, 'a', sizeof(longpathname) - 1); |
| |
| /* create test_file5 for test ENOTDIR. */ |
| SAFE_TOUCH(cleanup, "test_file5", 0644, NULL); |
| |
| /* |
| * create two symbolic links who point to each other for |
| * test ELOOP. |
| */ |
| SAFE_SYMLINK(cleanup, "test_file6", "test_file7"); |
| SAFE_SYMLINK(cleanup, "test_file7", "test_file6"); |
| } |
| |
| static void access_verify(int i) |
| { |
| char *file_name; |
| int access_mode; |
| |
| file_name = test_cases[i].pathname; |
| access_mode = test_cases[i].a_mode; |
| |
| TEST(access(file_name, access_mode)); |
| |
| if (TEST_RETURN != -1) { |
| tst_resm(TFAIL, "access(%s, %#o) succeeded unexpectedly", |
| file_name, access_mode); |
| return; |
| } |
| |
| if (TEST_ERRNO == test_cases[i].exp_errno) { |
| tst_resm(TPASS | TTERRNO, "access failed as expected"); |
| } else { |
| tst_resm(TFAIL | TTERRNO, |
| "access failed unexpectedly; expected: " |
| "%d - %s", test_cases[i].exp_errno, |
| strerror(test_cases[i].exp_errno)); |
| } |
| } |
| |
| static void cleanup(void) |
| { |
| tst_rmdir(); |
| } |