348 lines
9.5 KiB
C
348 lines
9.5 KiB
C
/*
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*
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* Copyright (c) International Business Machines Corp., 2001
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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* Test Name: lseek05
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*
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* Test Description:
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* Verify that,
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* 1. lseek() returns -1 and sets errno to ESPIPE, if the file handle of
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* the specified file is associated with a pipe, socket, or FIFO.
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* 2. lseek() returns -1 and sets errno to EINVAL, if the 'Whence' argument
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* is not a proper value.
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* 3. lseek() returns -1 and sets errno to EBADF, if the file handle of
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* the specified file is not valid.
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*
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* Expected Result:
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* lseek() should fail with return value -1 and set expected errno.
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*
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* Algorithm:
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* Setup:
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* Setup signal handling.
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* Create temporary directory.
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* Pause for SIGUSR1 if option specified.
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*
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* Test:
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* Loop if the proper options are given.
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* Execute system call
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* Check return code, if system call failed (return=-1)
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* if errno set == expected errno
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* Issue sys call fails with expected return value and errno.
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* Otherwise,
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* Issue sys call fails with unexpected errno.
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* Otherwise,
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* Issue sys call returns unexpected value.
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*
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* Cleanup:
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* Print errno log and/or timing stats if options given
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* Delete the temporary directory(s)/file(s) created.
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*
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* Usage: <for command-line>
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* lseek05 [-c n] [-e] [-i n] [-I x] [-p x] [-t]
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* where, -c n : Run n copies concurrently.
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* -e : Turn on errno logging.
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* -i n : Execute test n times.
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* -I x : Execute test for x seconds.
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* -P x : Pause for x seconds between iterations.
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* -t : Turn on syscall timing.
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*
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* HISTORY
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* 07/2001 Ported by Wayne Boyer
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*
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* RESTRICTIONS:
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* None.
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <errno.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <utime.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <signal.h>
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#include "test.h"
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#include "usctest.h"
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#define TEMP_FILE1 "tmp_file1"
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#define TEMP_FILE2 "tmp_file2"
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#define TEMP_FILE3 "tmp_file3"
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#define FILE_MODE S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH
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#define PIPE_MODE S_IFIFO | S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH
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#define SEEK_TOP 10
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char *TCID="lseek05"; /* Test program identifier. */
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int TST_TOTAL=3; /* Total number of test cases. */
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extern int Tst_count; /* Test Case counter for tst_* routines */
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int exp_enos[]={ESPIPE, EINVAL, EBADF, 0};
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int no_setup();
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int setup1(); /* setup function to test lseek() for ESPIPE */
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int setup2(); /* setup function to test lseek() for EINVAL */
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int setup3(); /* setup function to test lseek() for EBADF */
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int fd1; /* file handle for testfile1 */
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int fd2; /* file handle for testfile2 */
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int fd3; /* file handle for testfile3 */
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struct test_case_t { /* test case struct. to hold ref. test cond's*/
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int fd;
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int Whence;
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char *desc;
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int exp_errno;
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int (*setupfunc)();
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} Test_cases[] = {
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{ 1, SEEK_SET, "'fd' associated with a pipe/fifo", ESPIPE, setup1 },
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{ 2, SEEK_TOP, "'whence' argument is not valid", EINVAL, setup2 },
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{ 3, SEEK_SET, "'fd' is not an open file descriptor", EBADF, setup3 },
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{ 0, 0, NULL, 0, no_setup }
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};
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void setup(); /* Main setup function of test */
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void cleanup(); /* cleanup function for the test */
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int
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main(int ac, char **av)
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{
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int lc; /* loop counter */
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const char *msg; /* message returned from parse_opts */
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int fildes; /* file handle for testfile */
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int whence; /* position of file handle in the file */
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char *test_desc; /* test specific error message */
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int ind; /* counter to test different test conditions */
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/* Parse standard options given to run the test. */
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msg = parse_opts(ac, av, (option_t *) NULL, NULL);
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if (msg != (char *) NULL) {
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tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
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tst_exit();
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}
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/* Perform global setup for test */
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setup();
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/* set the expected errnos... */
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TEST_EXP_ENOS(exp_enos);
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/* Check looping state if -i option given */
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for (lc = 0; TEST_LOOPING(lc); lc++) {
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/* Reset Tst_count in case we are looping. */
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Tst_count=0;
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for (ind = 0; Test_cases[ind].desc != NULL; ind++) {
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fildes = Test_cases[ind].fd;
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test_desc = Test_cases[ind].desc;
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whence = Test_cases[ind].Whence;
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/* Assign the 'fd' values appropriatly */
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if (fildes == 1) {
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fildes = fd1;
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} else if (fildes == 2) {
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fildes = fd2;
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} else {
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fildes = fd3;
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}
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/*
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* Invoke lseek(2) to test different test conditions.
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* Verify that it fails with -1 return value and
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* sets appropriate errno.
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*/
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TEST(lseek(fildes, 0, whence));
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/* check return code of lseek(2) */
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if (TEST_RETURN != (off_t)-1) {
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tst_resm(TFAIL, "lseek() returned %d, expected "
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"-1, errno:%d", TEST_RETURN,
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Test_cases[ind].exp_errno);
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continue;
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}
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TEST_ERROR_LOG(TEST_ERRNO);
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if (TEST_ERRNO == Test_cases[ind].exp_errno) {
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tst_resm(TPASS, "lseek() fails, %s, errno:%d",
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test_desc, TEST_ERRNO);
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} else {
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tst_resm(TFAIL, "lseek() fails, %s, errno:%d, "
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"expected errno:%d", test_desc,
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TEST_ERRNO, Test_cases[ind].exp_errno);
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}
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}
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}
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/* Call cleanup() to undo setup done for the test. */
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cleanup();
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/*NOTREACHED*/
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} /* End main */
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/*
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* setup() - performs all ONE TIME setup for this test.
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* Create a temporary directory and change directory to it.
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* Invoke individual test setup functions according to the order
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* set in test struct. definition.
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*/
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void
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setup()
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{
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int ind; /* counter for test setup function */
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/* capture signals */
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tst_sig(NOFORK, DEF_HANDLER, cleanup);
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/* Pause if that option was specified */
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TEST_PAUSE;
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/* make a temp directory and cd to it */
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tst_tmpdir();
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/* call individual setup functions */
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for (ind = 0; Test_cases[ind].desc != NULL; ind++) {
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Test_cases[ind].setupfunc();
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}
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}
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/*
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* no_setup() - This is a dummy function which simply returns 0.
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*/
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int
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no_setup()
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{
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return 0;
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}
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/*
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* setup1() - setup function for a test condition for which lseek(2)
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* returns -1 and sets errno to ESPIPE.
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* Creat a named pipe/fifo using mknod() and open it for
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* reading/writing.
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* This function returns 0 on success.
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*/
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int
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setup1()
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{
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/* Creat a named pipe/fifo using mknod() */
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if (mknod(TEMP_FILE1, PIPE_MODE, 0) < 0) {
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tst_brkm(TBROK, cleanup,
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"mknod(%s, %#o, 0) Failed, errno=%d :%s",
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TEMP_FILE1, FILE_MODE, errno, strerror(errno));
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}
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/* Open the named pipe/fifo for reading/writing */
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if ((fd1 = open(TEMP_FILE1, O_RDWR)) < 0) {
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tst_brkm(TBROK, cleanup,
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"open(%s, O_RDWR) Failed, errno=%d, :%s",
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TEMP_FILE1, errno, strerror(errno));
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}
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return 0;
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}
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/*
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* setup2() - setup function for a test condition for which lseek(2)
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* returns -1 and sets errno to EINVAL.
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* Creat a temporary file for reading/writing and write some data
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* into it.
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* This function returns 0 on success.
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*/
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int
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setup2()
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{
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char write_buff[BUFSIZ]; /* buffer to hold data */
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/* Get the data to be written to temporary file */
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strcpy(write_buff, "abcdefg");
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/* Creat/open a temporary file under above directory */
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if ((fd2 = open(TEMP_FILE2, O_RDWR | O_CREAT, FILE_MODE)) == -1) {
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tst_brkm(TBROK, cleanup,
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"open(%s, O_RDWR|O_CREAT, %#o) Failed, errno=%d :%s",
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TEMP_FILE2, FILE_MODE, errno, strerror(errno));
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}
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/* Write data into temporary file */
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if(write(fd2, write_buff, sizeof(write_buff)) <= 0) {
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tst_brkm(TBROK, cleanup,
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"write(2) on %s Failed, errno=%d : %s",
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TEMP_FILE2, errno, strerror(errno));
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}
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return 0;
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}
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/*
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* setup3() - setup function for a test condition for which lseek(2)
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* returns -1 and sets errno to EBADF.
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* Creat a temporary file for reading/writing and close it.
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* This function returns 0 on success.
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*/
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int
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setup3()
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{
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/* Creat/open a temporary file under above directory */
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if ((fd3 = open(TEMP_FILE3, O_RDWR | O_CREAT, FILE_MODE)) == -1) {
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tst_brkm(TBROK, cleanup,
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"open(%s, O_RDWR|O_CREAT, %#o) Failed, errno=%d :%s",
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TEMP_FILE3, FILE_MODE, errno, strerror(errno));
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}
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/* Close the temporary file created above */
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if (close(fd3) < 0) {
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tst_brkm(TBROK, cleanup,
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"close(%s) Failed, errno=%d : %s:",
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TEMP_FILE3, errno, strerror(errno));
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}
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return 0;
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}
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/*
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* cleanup() - performs all ONE TIME cleanup for this test at
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* completion or premature exit.
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* Remove the test directory and testfile(s) created in the setup.
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*/
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void
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cleanup()
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{
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/*
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* print timing stats if that option was specified.
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* print errno log if that option was specified.
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*/
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TEST_CLEANUP;
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/* Close the temporary file(s) created in setup1/setup2*/
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if (close(fd1) < 0) {
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tst_brkm(TFAIL, NULL,
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"close(%s) Failed, errno=%d : %s:",
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TEMP_FILE1, errno, strerror(errno));
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}
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if (close(fd2) < 0) {
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tst_brkm(TFAIL, NULL,
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"close(%s) Failed, errno=%d : %s:",
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TEMP_FILE2, errno, strerror(errno));
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}
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/* Remove tmp dir and all files in it */
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tst_rmdir();
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/* exit with return code appropriate for results */
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tst_exit();
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}
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