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Diffstat (limited to 'winsup/testsuite/winsup.api/ltp/lseek08.c')
| -rw-r--r-- | winsup/testsuite/winsup.api/ltp/lseek08.c | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/winsup/testsuite/winsup.api/ltp/lseek08.c b/winsup/testsuite/winsup.api/ltp/lseek08.c new file mode 100644 index 000000000..061ac3152 --- /dev/null +++ b/winsup/testsuite/winsup.api/ltp/lseek08.c @@ -0,0 +1,242 @@ +/* + * + * 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: lseek03 + * + * Test Description: + * Verify that, lseek() call succeeds to set the file pointer position + * to the end of the file when 'whence' value set to SEEK_END and any + * attempts to read from that position should fail. + * + * Expected Result: + * lseek() should return the offset which is set to the file size measured + * in bytes. read() attempt should fail with -1 return value. + * + * 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> + * lseek03 [-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="lseek03"; /* 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; /* size of the temporary file */ + +void setup(); /* Main setup function of test */ +void cleanup(); /* cleanup function for the test */ + +int +main(int ac, char **av) +{ + int lc; /* loop counter */ + const char *msg; /* message returned from parse_opts */ + char read_buf[1]; /* data read from temp. file */ + + /* Parse standard options given to run the test. */ + msg = parse_opts(ac, av, (option_t *) NULL, NULL); + if (msg != (char *) 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 move the read/write file + * pointer/handle to the END of the file. + */ + TEST(lseek(fildes, 0, SEEK_END)); + + /* 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 file_size. + */ + if (TEST_RETURN != file_size) { + tst_resm(TFAIL, "lseek() returned incorrect " + "value %d, expected %d", + TEST_RETURN, file_size); + continue; + } + /* + * The return value is okay, now attempt to read data + * from the file. This should fail as the file pointer + * should be pointing to END OF FILE. + */ + read_buf[0] = '\0'; + if (read(fildes, &read_buf, sizeof(read_buf)) > 0) { + tst_resm(TFAIL, "read() successful on %s", + TEMP_FILE); + } else { + tst_resm(TPASS, "Functionality of lseek() on " + "%s successful", TEMP_FILE); + } + } else { + tst_resm(TPASS, "call succeeded"); + } + } /* End for TEST_LOOPING */ + + /* Call cleanup() to undo setup done for the test. */ + cleanup(); + + /* NOTREACHED*/ +} /* 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; /* struct. buffer for stat(2) */ + 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\n"); + + /* 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 size of the file using fstat */ + 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; +} + +/* + * 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(); +} |