| /* |
| * |
| * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| /* |
| * Test Name: lseek09 |
| * |
| * Test Description: |
| * Verify that, lseek() call succeeds to set the file pointer position |
| * to the current specified location, when 'whence' value is set to |
| * SEEK_CUR and the data read from the specified location should match |
| * the expected data. |
| * |
| * Expected Result: |
| * lseek() should return the specified offset from the beginning of the file |
| * measured in bytes. The data read from this location should match the |
| * expected data. |
| *$ |
| * 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> |
| * lseek09 [-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: |
| * None. |
| */ |
| |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <sys/types.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <utime.h> |
| #include <string.h> |
| #include <sys/stat.h> |
| #include <signal.h> |
| |
| #include "test.h" |
| #include "usctest.h" |
| |
| #define TEMP_FILE "tmp_file" |
| #define FILE_MODE S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH |
| |
| char *TCID = "lseek09"; /* Test program identifier. */ |
| int TST_TOTAL = 1; /* Total number of test cases. */ |
| extern int Tst_count; /* Test Case counter for tst_* routines */ |
| int fildes; /* file handle for temp file */ |
| size_t file_size; /* total size of file after data write */ |
| |
| void setup(); /* Main setup function of test */ |
| void cleanup(); /* cleanup function for the test */ |
| |
| int main(int ac, char **av) |
| { |
| int lc; /* loop counter */ |
| char *msg; /* message returned from parse_opts */ |
| char read_buf[BUFSIZ]; /* data read from temp. file */ |
| |
| /* Parse standard options given to run the test. */ |
| <<<<<<< HEAD |
| msg = parse_opts(ac, av, NULL, NULL); |
| ======= |
| msg = parse_opts(ac, av, (option_t *) NULL, NULL); |
| >>>>>>> master |
| if (msg != NULL) { |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| tst_exit(); |
| } |
| |
| /* Perform global setup for test */ |
| setup(); |
| |
| /* Check looping state if -i option given */ |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| /* Reset Tst_count in case we are looping. */ |
| Tst_count = 0; |
| |
| /* |
| * Invoke lseek(2) to set the file |
| * pointer/handle from the current location |
| * of the file descriptor + specified offset. |
| */ |
| TEST(lseek(fildes, 1, SEEK_CUR)); |
| |
| /* check return code of lseek(2) */ |
| if (TEST_RETURN == (off_t) - 1) { |
| tst_resm(TFAIL, "lseek on (%s) Failed, errno=%d : %s", |
| TEMP_FILE, TEST_ERRNO, strerror(TEST_ERRNO)); |
| continue; |
| } |
| /* |
| * Perform functional verification if test |
| * executed without (-f) option. |
| */ |
| if (STD_FUNCTIONAL_TEST) { |
| /* |
| * Check if the return value from lseek(2) is equal |
| * to the 3 positions from the beginning of the file. |
| * ie, 2 positions from lseek() in the setup + |
| * 1 position from above above. |
| */ |
| if (TEST_RETURN != 3) { |
| tst_resm(TFAIL, "lseek() returned incorrect " |
| "value %ld, expected 4", TEST_RETURN); |
| continue; |
| } |
| /* |
| * Read the data byte from this location. |
| */ |
| memset(read_buf, 0, sizeof(read_buf)); |
| if (read(fildes, &read_buf, (file_size - 3)) < 0) { |
| tst_brkm(TFAIL, cleanup, |
| "read() failed on %s, error=%d", |
| TEMP_FILE, errno); |
| } else { |
| /* |
| * Check if read data contains |
| * expected characters |
| * From pos 4 ---> 'defg'. |
| */ |
| if (strcmp(read_buf, "defg")) { |
| tst_resm(TFAIL, "Incorrect data read " |
| "from file %s", TEMP_FILE); |
| } else { |
| tst_resm(TPASS, "Functionality of " |
| "lseek() on %s successful", |
| TEMP_FILE); |
| } |
| } |
| } else { |
| tst_resm(TPASS, "call succeeded"); |
| } |
| |
| /* reset file pointer in case we are looping */ |
| if (lseek(fildes, 2, SEEK_SET) == -1) { |
| tst_brkm(TBROK, cleanup, "lseek failed - could not " |
| "reset file pointer"); |
| } |
| } /* End for TEST_LOOPING */ |
| |
| /* Call cleanup() to undo setup done for the test. */ |
| cleanup(); |
| |
| return 0; |
| } /* End main */ |
| |
| /* |
| * setup() - performs all ONE TIME setup for this test. |
| * Create a temporary directory and change directory to it. |
| * Create a test file under temporary directory and write some |
| * data into it. |
| * Get the size of the file using fstat(). |
| */ |
| void setup() |
| { |
| struct stat stat_buf; /* buffer to hold stat info. */ |
| char write_buf[BUFSIZ]; /* buffer to hold data */ |
| |
| /* capture signals */ |
| tst_sig(NOFORK, DEF_HANDLER, cleanup); |
| |
| /* Pause if that option was specified */ |
| TEST_PAUSE; |
| |
| /* make a temp directory and cd to it */ |
| tst_tmpdir(); |
| |
| /* Get the data to be written to temporary file */ |
| strcpy(write_buf, "abcdefg"); |
| |
| /* Creat/open a temporary file under above directory */ |
| if ((fildes = open(TEMP_FILE, O_RDWR | O_CREAT, FILE_MODE)) == -1) { |
| tst_brkm(TBROK, cleanup, |
| "open(%s, O_RDWR|O_CREAT, %#o) Failed, errno=%d :%s", |
| TEMP_FILE, FILE_MODE, errno, strerror(errno)); |
| } |
| |
| /* Write data into temporary file */ |
| if (write(fildes, write_buf, strlen(write_buf)) <= 0) { |
| tst_brkm(TBROK, cleanup, "write(2) on %s Failed, errno=%d : %s", |
| TEMP_FILE, errno, strerror(errno)); |
| } |
| |
| /* Get the temporary file information */ |
| if (fstat(fildes, &stat_buf) < 0) { |
| tst_brkm(TBROK, cleanup, "fstat(2) on %s Failed, errno=%d : %s", |
| TEMP_FILE, errno, strerror(errno)); |
| } |
| |
| file_size = stat_buf.st_size; |
| |
| /* |
| * Reset the file pointer position to the specified offset |
| * from the beginning of the file. |
| */ |
| if (lseek(fildes, 2, SEEK_SET) != 2) { |
| tst_brkm(TBROK, cleanup, |
| "lseek() fails to set file ptr. to specified offset"); |
| } |
| } |
| |
| /* |
| * cleanup() - performs all ONE TIME cleanup for this test at |
| * completion or premature exit. |
| * Remove the test directory and testfile created in the setup. |
| */ |
| void cleanup() |
| { |
| /* |
| * print timing stats if that option was specified. |
| * print errno log if that option was specified. |
| */ |
| TEST_CLEANUP; |
| |
| /* Close the temporary file created */ |
| if (close(fildes) < 0) { |
| tst_brkm(TFAIL, NULL, "close(%s) Failed, errno=%d : %s:", |
| TEMP_FILE, errno, strerror(errno)); |
| } |
| |
| /* Remove tmp dir and all files in it */ |
| tst_rmdir(); |
| |
| /* exit with return code appropriate for results */ |
| tst_exit(); |
| } |