110 lines
2.4 KiB
C
110 lines
2.4 KiB
C
/*
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* Copyright (c) International Business Machines Corp., 2002
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* Copyright (c) 2013 Wanlong Gao <gaowanlong@cn.fujitsu.com>
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* Description:
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* 1. open an O_WRONLY file, test if read failed.
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* 2. open an O_RDONLY file, test if write failed.
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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 <stdio.h>
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#include <fcntl.h>
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#include "test.h"
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char *TCID = "open09";
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int TST_TOTAL = 2;
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#define PASSED 1
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#define FAILED 0
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static char tempfile[40] = "";
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static void setup(void);
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static void cleanup(void);
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int main(int ac, char *av[])
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{
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int fildes;
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int ret = 0;
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char pbuf[BUFSIZ];
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int lc;
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tst_parse_opts(ac, av, NULL, NULL);
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setup();
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for (lc = 0; TEST_LOOPING(lc); lc++) {
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fildes = open(tempfile, O_WRONLY);
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if (fildes == -1)
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tst_brkm(TFAIL, cleanup, "\t\t\topen failed");
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ret = read(fildes, pbuf, 1);
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if (ret != -1)
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tst_resm(TFAIL, "read should not succeed");
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else
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tst_resm(TPASS, "Test passed in O_WRONLY.");
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close(fildes);
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fildes = open(tempfile, O_RDONLY);
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if (fildes == -1) {
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tst_resm(TFAIL, "\t\t\topen failed");
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} else {
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ret = write(fildes, pbuf, 1);
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if (ret != -1)
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tst_resm(TFAIL, "write should not succeed");
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else
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tst_resm(TPASS, "Test passed in O_RDONLY.");
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}
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close(fildes);
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}
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cleanup();
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tst_exit();
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}
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static void setup(void)
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{
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int fildes;
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tst_sig(NOFORK, DEF_HANDLER, cleanup);
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TEST_PAUSE;
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tst_tmpdir();
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sprintf(tempfile, "open09.%d", getpid());
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fildes = creat(tempfile, 0600);
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if (fildes == -1) {
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tst_brkm(TBROK, cleanup, "\t\t\tcan't create '%s'",
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tempfile);
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} else {
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close(fildes);
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}
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}
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static void cleanup(void)
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{
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unlink(tempfile);
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tst_rmdir();
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}
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