xref: /aosp_15_r20/external/ltp/testcases/kernel/fs/stream/stream02.c (revision 49cdfc7efb34551c7342be41a7384b9c40d7cab7)

/*
 *
 *   Copyright (c) International Business Machines  Corp., 2002
 *
 *   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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */
/* ported from SPIE section2/filesuite/stream2.c, by Airong Zhang */

/*======================================================================
	=================== TESTPLAN SEGMENT ===================
>KEYS:  < fseek() mknod() fopen()
>WHAT:  < 1)
>HOW:   < 1)
>BUGS:  <
======================================================================*/

#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "test.h"

char *TCID = "stream02";
int TST_TOTAL = 1;
int local_flag;

#define PASSED 1
#define FAILED 0

char progname[] = "stream02()";
char tempfile1[40] = "";

/* XXX: add cleanup + setup. */

/*--------------------------------------------------------------------*/
int main(int ac, char *av[])
{
	FILE *stream;
	int fd;
	int lc;

	/*
	 * parse standard options
	 */
	tst_parse_opts(ac, av, NULL, NULL);

	local_flag = PASSED;
	tst_tmpdir();

	for (lc = 0; TEST_LOOPING(lc); lc++) {

		sprintf(tempfile1, "stream1.%d", getpid());
	/*--------------------------------------------------------------------*/
		//block0:
		if (mknod(tempfile1, (S_IFIFO | 0666), 0) != 0) {
			tst_resm(TFAIL, "mknod failed in block0: %s",
				 strerror(errno));
			local_flag = FAILED;
			goto block1;
		}
		if ((stream = fopen(tempfile1, "w+")) == NULL) {
			tst_resm(TFAIL, "fopen(%s) w+ failed for pipe file: %s",
				 tempfile1, strerror(errno));
			local_flag = FAILED;
		} else {
			fclose(stream);
		}
		if ((stream = fopen(tempfile1, "a+")) == NULL) {
			tst_resm(TFAIL, "fopen(%s) a+ failed: %s", tempfile1,
				 strerror(errno));
			local_flag = FAILED;
		} else {
			fclose(stream);
			unlink(tempfile1);
		}
		if (local_flag == PASSED) {
			tst_resm(TPASS, "Test passed in block0.");
		} else {
			tst_resm(TFAIL, "Test failed in block0.");
		}
		local_flag = PASSED;

	/*--------------------------------------------------------------------*/
block1:
		if ((fd = open("/dev/tty", O_WRONLY)) >= 0) {
			close(fd);
			if ((stream = fopen("/dev/tty", "w")) == NULL) {
				tst_resm(TFAIL | TERRNO,
					 "fopen(/dev/tty) write failed");
				local_flag = FAILED;
			} else {
				fclose(stream);
			}
		}
		if (local_flag == PASSED) {
			tst_resm(TPASS, "Test passed in block1.");
		} else {
			tst_resm(TFAIL, "Test failed in block1.");
		}

	/*--------------------------------------------------------------------*/
	}			/* end for */
	tst_rmdir();
	tst_exit();
}