| /* |
| * |
| * Copyright (C) Bull S.A. 2001 |
| * 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: fstat05 |
| * |
| * Test Description: |
| * Verify that, |
| * if buffer points outside user's accessible address space fstat(2) |
| * either returns -1 and sets errno to EFAULT |
| * or SIGSEGV is returned instead of EFAULT |
| * |
| * Expected Result: |
| * fstat() should fail with return value -1 and set expected errno. |
| * or |
| * fstat() should fail with SIGSEGV returned. |
| * Both results are considered as acceptable. |
| * |
| * Algorithm: |
| * Setup: |
| * Setup signal handling SIGSEGV included. |
| * Switch to nobody user. |
| * Pause for SIGUSR1 if option specified. |
| * Create temporary directory. |
| * Create a testfile under temporary directory. |
| * |
| * Test: |
| * Buffer points outside user's accessible address space. |
| * 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. |
| * |
| * Sighandler: |
| * if signal == SIGSEGV |
| * Issue sys call fails with expected signal |
| * Otherwise, |
| * Issue sys call fails with unexpected signal. |
| * |
| * Cleanup: |
| * Print errno log and/or timing stats if options given |
| * Close the test file |
| * Delete the temporary directory(s)/file(s) created. |
| * |
| * Usage: <for command-line> |
| * fstat05 [-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 |
| * 05/2002 Jacky Malcles |
| * -Ported |
| * |
| * Restrictions: |
| * This test must be run as root. |
| */ |
| |
| #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 <pwd.h> |
| |
| #include "test.h" |
| #include "safe_macros.h" |
| |
| #define TEST_FILE "testfile" |
| |
| char nobody_uid[] = "nobody"; |
| struct passwd *ltpuser; |
| |
| char *TCID = "fstat05"; |
| int TST_TOTAL = 1; |
| |
| int fildes; /* testfile descriptor */ |
| |
| void setup(); /* Main setup function for the tests */ |
| void cleanup(); /* cleanup function for the test */ |
| void sighandler(int sig); /* signals handler function for the test */ |
| |
| int siglist[] = { SIGHUP, SIGINT, SIGQUIT, SIGILL, SIGTRAP, SIGABRT, SIGIOT, |
| SIGBUS, SIGFPE, SIGUSR1, SIGSEGV, SIGUSR2, SIGPIPE, SIGALRM, |
| SIGTERM, |
| #ifdef SIGSTKFLT |
| SIGSTKFLT, |
| #endif |
| SIGCHLD, SIGCONT, SIGTSTP, SIGTTIN, |
| SIGTTOU, SIGURG, SIGXCPU, SIGXFSZ, SIGVTALRM, SIGPROF, |
| SIGWINCH, SIGIO, SIGPWR, SIGSYS, |
| #ifdef SIGUNUSED |
| SIGUNUSED |
| #endif |
| }; |
| |
| int SIG_SEEN = sizeof(siglist) / sizeof(int); |
| |
| #if !defined(UCLINUX) |
| |
| int main(int ac, char **av) |
| { |
| struct stat *ptr_str = tst_get_bad_addr(NULL); |
| int lc; |
| |
| tst_parse_opts(ac, av, NULL, NULL); |
| |
| /* |
| * Invoke setup function |
| */ |
| setup(); |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| |
| tst_count = 0; |
| |
| /* |
| * Call fstat(2). |
| * verify that it fails with -1 return value and |
| * sets appropriate errno. |
| */ |
| TEST(fstat(fildes, ptr_str)); |
| |
| /* Check return code from fstat(2) */ |
| if (TEST_RETURN == -1) { |
| if (TEST_ERRNO == EFAULT) |
| tst_resm(TPASS, |
| "fstat failed with EFAULT as expected"); |
| else |
| tst_resm(TFAIL | TTERRNO, |
| "fstat failed unexpectedly"); |
| } else |
| tst_resm(TFAIL, "fstat() returned %ld but we wanted -1", |
| TEST_RETURN); |
| |
| } |
| |
| /* |
| * Invoke cleanup() to delete the test directory/file(s) created |
| * in the setup(). |
| */ |
| cleanup(); |
| tst_exit(); |
| } |
| |
| #else |
| |
| int main(void) |
| { |
| tst_brkm(TCONF, NULL, "test is not available on uClinux"); |
| } |
| |
| #endif /* if !defined(UCLINUX) */ |
| |
| /* |
| * 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. |
| */ |
| void setup(void) |
| { |
| int i; |
| |
| tst_require_root(); |
| |
| /* |
| * Capture unexpected signals SIGSEGV included |
| * SIGSEGV being considered as acceptable as returned value |
| */ |
| for (i = 0; i < SIG_SEEN; i++) |
| signal(siglist[i], &sighandler); |
| |
| ltpuser = getpwnam(nobody_uid); |
| SAFE_SETUID(NULL, ltpuser->pw_uid); |
| |
| tst_tmpdir(); |
| |
| /* Create a testfile under temporary directory */ |
| fildes = SAFE_OPEN(cleanup, TEST_FILE, O_RDWR | O_CREAT, 0666); |
| |
| TEST_PAUSE; |
| } |
| |
| /* |
| * 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) |
| { |
| |
| SAFE_CLOSE(cleanup, fildes); |
| |
| tst_rmdir(); |
| |
| } |
| |
| /* |
| * sighandler() - handle the signals |
| */ |
| |
| void sighandler(int sig) |
| { |
| if (sig == SIGSEGV) |
| tst_resm(TPASS, "fstat failed as expected with SIGSEGV"); |
| else |
| tst_brkm(TBROK, NULL, "Unexpected signal %d received.", sig); |
| cleanup(); |
| tst_exit(); |
| } |