| /* |
| * |
| * 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 Name: stat03 |
| * |
| * Test Description: |
| * Verify that, |
| * 1) stat(2) returns -1 and sets errno to EACCES if search permission is |
| * denied on a component of the path prefix. |
| * 2) stat(2) returns -1 and sets errno to ENOENT if the specified file |
| * does not exists or empty string. |
| * 3) stat(2) returns -1 and sets errno to EFAULT if pathname points |
| * outside user's accessible address space. |
| * 4) stat(2) returns -1 and sets errno to ENAMETOOLONG if the pathname |
| * component is too long. |
| * 5) stat(2) returns -1 and sets errno to ENOTDIR if the directory |
| * component in pathname is not a directory. |
| * |
| * Expected Result: |
| * stat() should fail with return value -1 and set expected errno. |
| * |
| * Algorithm: |
| * Setup: |
| * Setup signal handling. |
| * Create temporary directory. |
| * Pause for SIGUSR1 if option specified. |
| * |
| * Test: |
| * Loop if the proper options are given. |
| * Execute system call |
| * Check return code, if system call failed (return=-1) |
| * if errno set == expected errno |
| * Issue sys call fails with expected return value and errno. |
| * Otherwise, |
| * Issue sys call fails with unexpected errno. |
| * Otherwise, |
| * Issue sys call returns unexpected value. |
| * |
| * Cleanup: |
| * Print errno log and/or timing stats if options given |
| * Delete the temporary directory(s)/file(s) created. |
| * |
| * Usage: <for command-line> |
| * stat03 [-c n] [-e] [-i n] [-I x] [-p x] [-t] |
| * where, -c n : Run n copies concurrently. |
| * -e : Turn on errno logging. |
| * -i n : Execute test n times. |
| * -I x : Execute test for x seconds. |
| * -P x : Pause for x seconds between iterations. |
| * -t : Turn on syscall timing. |
| * |
| * History |
| * 07/2001 John George |
| * -Ported |
| * |
| * Restrictions: |
| * |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| #include <fcntl.h> |
| #include <errno.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" |
| |
| #define MODE_RWX S_IRWXU | S_IRWXG | S_IRWXO |
| #define FILE_MODE S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH |
| #define DIR_TEMP "testdir_1" |
| #define TEST_FILE1 "testdir_1/tfile_1" |
| #define TEST_FILE2 "t_file/tfile_2" |
| |
| int no_setup(); |
| int setup1(); /* setup function to test chmod for EACCES */ |
| int setup2(); /* setup function to test chmod for ENOTDIR */ |
| int longpath_setup(); /* setup function to test chmod for ENAMETOOLONG */ |
| char nobody_uid[] = "nobody"; |
| struct passwd *ltpuser; |
| |
| char Longpathname[PATH_MAX + 2]; |
| char High_address_node[64]; |
| |
| struct test_case_t { /* test case struct. to hold ref. test cond's */ |
| char *pathname; |
| char *desc; |
| int exp_errno; |
| int (*setupfunc) (); |
| } Test_cases[] = { |
| { |
| TEST_FILE1, "No Search permissions to process", EACCES, setup1}, |
| #if !defined(UCLINUX) |
| { |
| High_address_node, "Address beyond address space", EFAULT, no_setup}, |
| { |
| (char *)-1, "Negative address", EFAULT, no_setup}, |
| #endif |
| { |
| Longpathname, "Pathname too long", ENAMETOOLONG, longpath_setup}, { |
| "", "Pathname is empty", ENOENT, no_setup}, { |
| TEST_FILE2, "Path contains regular file", ENOTDIR, setup2}, { |
| NULL, NULL, 0, no_setup} |
| }; |
| |
| char *TCID = "stat03"; |
| int TST_TOTAL = ARRAY_SIZE(Test_cases); |
| |
| char *bad_addr = 0; |
| |
| void setup(); /* Main setup function for the tests */ |
| void cleanup(); /* cleanup function for the test */ |
| |
| int main(int ac, char **av) |
| { |
| struct stat stat_buf; /* stat structure buffer */ |
| int lc; |
| const char *msg; |
| char *file_name; /* ptr. for file name whose mode is modified */ |
| char *test_desc; /* test specific error message */ |
| int ind; /* counter to test different test conditions */ |
| |
| if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| |
| /* |
| * Invoke setup function to call individual test setup functions |
| * to simulate test conditions. |
| */ |
| setup(); |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| |
| tst_count = 0; |
| |
| for (ind = 0; Test_cases[ind].desc != NULL; ind++) { |
| file_name = Test_cases[ind].pathname; |
| test_desc = Test_cases[ind].desc; |
| |
| #if !defined(UCLINUX) |
| if (file_name == High_address_node) { |
| file_name = (char *)get_high_address(); |
| } |
| #endif |
| |
| /* |
| * Call stat(2) to test different test conditions. |
| * verify that it fails with -1 return value and |
| * sets appropriate errno. |
| */ |
| TEST(stat(file_name, &stat_buf)); |
| |
| /* Check return code from stat(2) */ |
| if (TEST_RETURN == -1) { |
| if (TEST_ERRNO == Test_cases[ind].exp_errno) { |
| tst_resm(TPASS, |
| "stat() fails, %s, errno:%d", |
| test_desc, TEST_ERRNO); |
| } else { |
| tst_resm(TFAIL, |
| "stat() fails, %s, errno:%d, expected errno:%d", |
| test_desc, TEST_ERRNO, |
| Test_cases[ind].exp_errno); |
| } |
| } else { |
| tst_resm(TFAIL, |
| "stat(2) returned %ld, expected -1, errno:%d", |
| TEST_RETURN, |
| Test_cases[ind].exp_errno); |
| } |
| } |
| tst_count++; /* incr TEST_LOOP counter */ |
| } |
| |
| /* |
| * Invoke cleanup() to delete the test directory/file(s) created |
| * in the setup(). |
| */ |
| cleanup(); |
| tst_exit(); |
| |
| } |
| |
| /* |
| * void |
| * setup(void) - performs all ONE TIME setup for this test. |
| * Exit the test program on receipt of unexpected signals. |
| * Create a temporary directory and change directory to it. |
| * Invoke individual test setup functions according to the order |
| * set in struct. definition. |
| */ |
| void setup(void) |
| { |
| int ind; |
| |
| tst_require_root(NULL); |
| |
| /* Capture unexpected signals */ |
| tst_sig(FORK, DEF_HANDLER, cleanup); |
| |
| /* Switch to nobody user for correct error code collection */ |
| ltpuser = getpwnam(nobody_uid); |
| if (setuid(ltpuser->pw_uid) == -1) { |
| tst_resm(TINFO, "setuid failed to " |
| "to set the effective uid to %d", ltpuser->pw_uid); |
| perror("setuid"); |
| } |
| |
| /* Pause if that option was specified |
| * TEST_PAUSE contains the code to fork the test with the -i option. |
| * You want to make sure you do this before you create your temporary |
| * directory. |
| */ |
| TEST_PAUSE; |
| |
| /* Make a temp dir and cd to it */ |
| tst_tmpdir(); |
| |
| #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, cleanup, "mmap failed"); |
| } |
| Test_cases[2].pathname = bad_addr; |
| #endif |
| |
| /* call individual setup functions */ |
| for (ind = 0; Test_cases[ind].desc != NULL; ind++) { |
| Test_cases[ind].setupfunc(); |
| } |
| } |
| |
| /* |
| * int |
| * no_setup() - Some test conditions for stat(2) do not any setup. |
| * Hence, this function just returns 0. |
| * This function simply returns 0. |
| */ |
| int no_setup(void) |
| { |
| return 0; |
| } |
| |
| /* |
| * int |
| * setup1() - setup function for a test condition for which stat(2) |
| * returns -1 and sets errno to EACCES. |
| * Create a test directory under temporary directory and create a test file |
| * under this directory with mode "0666" permissions. |
| * Modify the mode permissions on test directory such that process will not |
| * have search permissions on test directory. |
| * |
| * The function returns 0. |
| */ |
| int setup1(void) |
| { |
| int fd; /* file handle for testfile */ |
| |
| /* Creat a test directory */ |
| if (mkdir(DIR_TEMP, MODE_RWX) < 0) { |
| tst_brkm(TBROK, cleanup, "mkdir(2) of %s failed", DIR_TEMP); |
| } |
| |
| /* Creat a test file under above test directory */ |
| if ((fd = open(TEST_FILE1, O_RDWR | O_CREAT, 0666)) == -1) { |
| tst_brkm(TBROK, cleanup, |
| "open(%s, O_RDWR|O_CREAT, 0666) failed, errno=%d : %s", |
| TEST_FILE1, errno, strerror(errno)); |
| } |
| /* Close the test file */ |
| if (close(fd) == -1) { |
| tst_brkm(TBROK, cleanup, |
| "close(%s) Failed, errno=%d : %s", |
| TEST_FILE1, errno, strerror(errno)); |
| } |
| |
| /* Modify mode permissions on test directory */ |
| if (chmod(DIR_TEMP, FILE_MODE) < 0) { |
| tst_brkm(TBROK, cleanup, "chmod(2) of %s failed", DIR_TEMP); |
| } |
| return 0; |
| } |
| |
| /* |
| * int |
| * setup2() - setup function for a test condition for which stat(2) |
| * returns -1 and sets errno to ENOTDIR. |
| * |
| * Create a test file under temporary directory so that test tries to |
| * change mode of a testfile "tfile_2" under "t_file" which happens to be |
| * another regular file. |
| */ |
| int setup2(void) |
| { |
| int fd; /* File handle for test file */ |
| |
| /* Creat a test file under temporary directory */ |
| if ((fd = open("t_file", O_RDWR | O_CREAT, MODE_RWX)) == -1) { |
| tst_brkm(TBROK, cleanup, |
| "open(2) on t_file failed, errno=%d : %s", |
| errno, strerror(errno)); |
| } |
| /* Close the test file created above */ |
| if (close(fd) == -1) { |
| tst_brkm(TBROK, cleanup, |
| "close(t_file) Failed, errno=%d : %s", |
| errno, strerror(errno)); |
| } |
| return 0; |
| } |
| |
| /* |
| * int |
| * longpath_setup() - setup to create a node with a name length exceeding |
| * the MAX. length of PATH_MAX. |
| * This function retruns 0. |
| */ |
| int longpath_setup(void) |
| { |
| int ind; /* counter variable */ |
| |
| for (ind = 0; ind <= (PATH_MAX + 1); ind++) { |
| Longpathname[ind] = 'a'; |
| } |
| return 0; |
| } |
| |
| /* |
| * void |
| * cleanup() - Performs all ONE TIME cleanup for this test at |
| * completion or premature exit. |
| * Print test timing stats and errno log if test executed with options. |
| * Remove temporary directory and sub-directories/files under it |
| * created during setup(). |
| * Exit the test program with normal exit code. |
| */ |
| void cleanup(void) |
| { |
| |
| /* Restore mode permissions on test directory created in setup2() */ |
| if (chmod(DIR_TEMP, MODE_RWX) < 0) { |
| tst_brkm(TFAIL, NULL, "chmod(2) of %s failed", DIR_TEMP); |
| } |
| |
| tst_rmdir(); |
| } |