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/*
*
* 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
*/
/*
* NAME
* write02.c
*
* DESCRIPTION
* Basic functionality test: does the return from write match the count
* of the number of bytes written.
*
*
* ALGORITHM
* Create a file and write some bytes out to it.
* Check the return count against the number returned.
*
* USAGE: <for command-line>
* write02 [-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
* 07/2001 John George
* -Ported
*
* Restrictions
* None
*/
#include <errno.h>
#include <stdio.h>
#include "test.h"
#include "usctest.h"
char *TCID = "write02()";
int TST_TOTAL = 1;
extern int Tst_count;
void cleanup(void);
void setup(void);
char pfiln[40] = "";
main(int argc, char **argv)
{
int lc; /* loop counter */
const char *msg; /* message returned from parse_opts */
int cwrite;
int fild;
int iws;
int badcount = 0;
char pwbuf[BUFSIZ + 1];
/* parse standard options */
if (msg = parse_opts(argc, argv, (option_t *) NULL, NULL)) {
tst_brkm(TBROK, cleanup, "OPTION PARSING ERROR - %s", msg);
/*NOTREACHED*/
}
setup(); /* global setup for test */
/* The following loop checks looping state if -i option given */
for (lc = 0; TEST_LOOPING(lc); lc++) {
/* reset Tst_count in case we are looping */
Tst_count = 0;
block1:
tst_resm(TINFO, "Block 1: test to see write() returns proper "
"write count");
for (iws = 0; iws < BUFSIZ; iws++) {
pwbuf[iws] = 'A' + (iws % 26);
}
pwbuf[BUFSIZ] = '\n';
if ((fild = creat(pfiln, 0777)) == -1) {
tst_brkm(TBROK, cleanup, "Can't creat Xwrit");
/*NOTREACHED*/
}
for (iws = BUFSIZ; iws > 0; iws--) {
if ((cwrite = write(fild, pwbuf, iws)) != iws) {
TEST_ERROR_LOG(errno);
badcount++;
tst_resm(TINFO, "bad write count");
}
}
if (badcount != 0) {
tst_resm(TFAIL, "write() FAILED to return proper cnt");
} else {
tst_resm(TPASS, "write() PASSED");
}
tst_resm(TINFO, "block 1 passed");
close(fild);
}
cleanup();
/*NOTREACHED*/
}
/*
* setup() - performs all ONE TIME setup for this test
*/
void
setup(void)
{
/* capture signals */
tst_sig(FORK, DEF_HANDLER, cleanup);
umask(0);
/* Pause if that option was specified
* TEST_PAUSE contains the code to fork the test with the -i option.
* You want to make sure you do this before you create your temporary
* directory.
*/
TEST_PAUSE;
/* make a temp directory and cd to it */
tst_tmpdir();
sprintf(pfiln, "./write1.%d", getpid());
}
/*
* cleanup() - performs all ONE TIME cleanup for this test at completion or
* premature exit.
*/
void
cleanup(void)
{
/*
* print timing stats if that option was specified.
* print errno log if that option was specified.
*/
TEST_CLEANUP;
unlink(pfiln);
/* Remove tmp dir and all files in it */
tst_rmdir();
/* exit with return code appropriate for results */
tst_exit();
}
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