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