| /* |
| * |
| * 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: fchmod03 |
| * |
| * Test Description: |
| * Verify that, fchmod(2) will succeed to change the mode of a file |
| * and set the sticky bit on it if invoked by non-root (uid != 0) |
| * process with the following constraints, |
| * - the process is the owner of the file. |
| * - the effective group ID or one of the supplementary group ID's of the |
| * process is equal to the group ID of the file. |
| * |
| * Expected Result: |
| * fchmod() should return value 0 on success and succeeds to change |
| * the mode of specified file, sets sticky bit on it. |
| * |
| * 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) |
| * Log the errno and Issue a FAIL message. |
| * Otherwise, |
| * Verify the Functionality of system call |
| * if successful, |
| * Issue Functionality-Pass message. |
| * Otherwise, |
| * Issue Functionality-Fail message. |
| * Cleanup: |
| * Print errno log and/or timing stats if options given |
| * Delete the temporary directory created. |
| * |
| * Usage: <for command-line> |
| * fchmod03 [-c n] [-f] [-i n] [-I x] [-P x] [-t] |
| * where, -c n : Run n copies concurrently. |
| * -f : Turn off functionality Testing. |
| * -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 Ported by Wayne Boyer |
| * |
| * RESTRICTIONS: |
| * This test should be run by 'non-super-user' only. |
| * |
| */ |
| |
| #include <stdio.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| #include <errno.h> |
| #include <string.h> |
| #include <signal.h> |
| #include <pwd.h> |
| |
| #include "test.h" |
| #include "safe_macros.h" |
| #include "fchmod.h" |
| |
| int fd; /* file descriptor for test file */ |
| char *TCID = "fchmod03"; |
| int TST_TOTAL = 1; |
| |
| char nobody_uid[] = "nobody"; |
| struct passwd *ltpuser; |
| |
| void setup(); /* Main setup function for the test */ |
| void cleanup(); /* Main cleanup function for the test */ |
| |
| int main(int ac, char **av) |
| { |
| struct stat stat_buf; /* stat struct. */ |
| int lc; |
| mode_t file_mode; /* mode permissions set on testfile */ |
| |
| tst_parse_opts(ac, av, NULL, NULL); |
| |
| setup(); |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| |
| tst_count = 0; |
| |
| TEST(fchmod(fd, PERMS)); |
| |
| if (TEST_RETURN == -1) { |
| tst_resm(TFAIL | TTERRNO, "fchmod failed"); |
| continue; |
| } |
| /* |
| * Get the file information using |
| * fstat(2). |
| */ |
| if (fstat(fd, &stat_buf) == -1) |
| tst_brkm(TFAIL | TERRNO, cleanup, |
| "fstat failed"); |
| file_mode = stat_buf.st_mode; |
| |
| /* Verify STICKY BIT set on testfile */ |
| if ((file_mode & PERMS) != PERMS) |
| tst_resm(TFAIL, "%s: Incorrect modes 0%3o, " |
| "Expected 0777", TESTFILE, file_mode); |
| else |
| tst_resm(TPASS, "Functionality of fchmod(%d, " |
| "%#o) successful", fd, PERMS); |
| } |
| |
| cleanup(); |
| tst_exit(); |
| } |
| |
| void setup(void) |
| { |
| |
| tst_sig(NOFORK, DEF_HANDLER, cleanup); |
| |
| tst_require_root(); |
| |
| ltpuser = getpwnam(nobody_uid); |
| if (ltpuser == NULL) |
| tst_brkm(TBROK | TERRNO, NULL, "getpwnam failed"); |
| SAFE_SETEUID(NULL, ltpuser->pw_uid); |
| |
| TEST_PAUSE; |
| |
| tst_tmpdir(); |
| |
| /* |
| * Create a test file under temporary directory with specified |
| * mode permissios and set the ownership of the test file to the |
| * uid/gid of guest user. |
| */ |
| if ((fd = open(TESTFILE, O_RDWR | O_CREAT, FILE_MODE)) == -1) |
| tst_brkm(TBROK | TERRNO, cleanup, "open failed"); |
| } |
| |
| void cleanup(void) |
| { |
| if (close(fd) == -1) |
| tst_resm(TWARN | TERRNO, "close failed"); |
| |
| tst_rmdir(); |
| |
| } |