245 lines
6.7 KiB
C
245 lines
6.7 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: ftruncate01
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*
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* Test Description:
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* Verify that, ftruncate(2) succeeds to truncate a file to a specified
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* length if the file indicated by file descriptor opened for writing.
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*
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* Expected Result:
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* ftruncate(2) should return a value 0 and the length of the file after
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* truncation should be equal to the length it is truncated to.
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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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* Log the errno and Issue a FAIL message.
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* Otherwise,
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* Verify the Functionality of system call
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* if successful,
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* Issue Functionality-Pass message.
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* Otherwise,
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* Issue Functionality-Fail message.
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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 created.
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*
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* Usage: <for command-line>
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* ftruncate01 [-c n] [-f] [-i n] [-I x] [-P x] [-t]
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* where, -c n : Run n copies concurrently.
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* -f : Turn off functionality Testing.
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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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* This test should be run by 'non-super-user' only.
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*
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/fcntl.h>
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#include <errno.h>
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#include <string.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 TESTFILE "testfile" /* file under test */
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#define FILE_MODE S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH
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#define BUF_SIZE 256 /* buffer size */
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#define FILE_SIZE 1024 /* test file size */
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#define TRUNC_LEN 256 /* truncation length */
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const char *TCID="ftruncate01"; /* Test program identifier. */
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int TST_TOTAL=1; /* Total number of test conditions */
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extern int Tst_count; /* Test Case counter for tst_* routines */
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int fildes; /* file descriptor for test file */
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void setup(); /* setup function for the test */
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void cleanup(void) __attribute__((noreturn)); /* 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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struct stat stat_buf; /* stat(2) struct contents */
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int lc; /* loop counter */
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const char *msg; /* message returned from parse_opts */
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off_t file_length; /* test file length */
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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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/* 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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/*
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* Call ftruncate(2) to truncate a test file to a
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* specified length.
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*/
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TEST(ftruncate(fildes, TRUNC_LEN));
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/* check return code of ftruncate(2) */
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if (TEST_RETURN == -1) {
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tst_resm(TFAIL,
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"ftruncate() of %s Failed, errno=%d : %s",
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TESTFILE, TEST_ERRNO,
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strerror(TEST_ERRNO));
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continue;
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}
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/*
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* Perform functional verification if test
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* executed without (-f) option.
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*/
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if (STD_FUNCTIONAL_TEST) {
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/*
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* Get the testfile information using
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* fstat(2).
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*/
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if (fstat(fildes, &stat_buf) < 0) {
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tst_brkm(TFAIL, cleanup,
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"stat(2) of %s failed, error:%d",
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TESTFILE, errno);
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}
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stat_buf.st_mode &= ~S_IFREG;
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file_length = stat_buf.st_size;
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/*
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* Check for expected size of testfile after
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* truncate(2) on it.
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*/
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if (file_length != TRUNC_LEN) {
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tst_resm(TFAIL, "%s: Incorrect file size %d, "
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"Expected %d", TESTFILE, file_length,
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TRUNC_LEN);
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} else {
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tst_resm(TPASS, "Functionality of ftruncate() "
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"on %s successful", TESTFILE);
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}
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} else {
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tst_resm(TPASS, "call succeeded");
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}
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} /* End for TEST_LOOPING */
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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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* void
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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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* Create a test file under temporary directory and write some
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* data into it.
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*/
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void
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setup()
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{
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int i; /* counter for for loop() */
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int c, c_total = 0; /* bytes to be written to file */
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char tst_buff[BUF_SIZE]; /* buffer to hold data */
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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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/* Fill the test buffer with the known data */
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for (i = 0; i < BUF_SIZE; i++) {
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tst_buff[i] = 'a';
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}
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/* open a file for reading/writing */
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if ((fildes = open(TESTFILE, 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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TESTFILE, FILE_MODE, errno, strerror(errno));
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}
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/* Write to the file 1k data from the buffer */
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while (c_total < FILE_SIZE) {
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if ((c = write(fildes, tst_buff, sizeof(tst_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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TESTFILE, errno, strerror(errno));
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} else {
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c_total += c;
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}
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}
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} /* End setup() */
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/*
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* void
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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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* Close the temporary file.
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* Remove the test directory and testfile 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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*/
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TEST_CLEANUP;
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/* Close the testfile after writing data into it */
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if (close(fildes) == -1) {
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tst_brkm(TFAIL, NULL,
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"close(%s) Failed, errno=%d : %s",
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TESTFILE, 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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} /* End cleanup() */
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