| /* |
| * |
| * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| /* |
| * NAME |
| * dup204.c |
| * |
| * DESCRIPTION |
| * Testcase to check the basic functionality of dup2(2). |
| * |
| * ALGORITHM |
| * attempt to call dup2() on read/write ends of a pipe |
| * |
| * USAGE: <for command-line> |
| * dup204 [-c n] [-f] [-i n] [-I x] [-P x] [-t] |
| * where, -c n : Run n copies concurrently. |
| * -f : Turn off functionality Testing. |
| * -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. |
| * |
| * RESTRICTION |
| * NONE |
| */ |
| |
| #ifndef _GNU_SOURCE |
| #define _GNU_SOURCE |
| #endif |
| #include <sys/types.h> |
| #include <sys/fcntl.h> |
| #include <sys/stat.h> |
| #include <errno.h> |
| #include <signal.h> |
| #include <string.h> |
| #include "test.h" |
| |
| void setup(); |
| void cleanup(); |
| |
| char *TCID = "dup204"; |
| int TST_TOTAL = 2; |
| |
| int fd[2]; |
| int nfd[2]; |
| |
| int main(int ac, char **av) |
| { |
| int lc; |
| const char *msg; |
| int i; |
| struct stat oldbuf, newbuf; |
| |
| if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| |
| setup(); |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| |
| tst_count = 0; |
| |
| /* loop through the test cases */ |
| for (i = 0; i < TST_TOTAL; i++) { |
| TEST(dup2(fd[i], nfd[i])); |
| |
| if (TEST_RETURN == -1) { |
| tst_resm(TFAIL, "call failed unexpectedly"); |
| continue; |
| } |
| |
| if (fstat(fd[i], &oldbuf) == -1) |
| tst_brkm(TBROK, cleanup, "fstat() #1 " |
| "failed"); |
| if (fstat(nfd[i], &newbuf) == -1) |
| tst_brkm(TBROK, cleanup, "fstat() #2 " |
| "failed"); |
| |
| if (oldbuf.st_ino != newbuf.st_ino) |
| tst_resm(TFAIL, "original and duped " |
| "inodes do not match"); |
| else |
| tst_resm(TPASS, "original and duped " |
| "inodes are the same"); |
| |
| if (close(TEST_RETURN) == -1) |
| tst_brkm(TBROK | TERRNO, cleanup, |
| "close failed"); |
| } |
| } |
| |
| cleanup(); |
| tst_exit(); |
| } |
| |
| void setup(void) |
| { |
| fd[0] = -1; |
| |
| tst_sig(FORK, DEF_HANDLER, cleanup); |
| |
| TEST_PAUSE; |
| |
| tst_tmpdir(); |
| |
| if (pipe(fd) == -1) |
| tst_brkm(TBROK | TERRNO, cleanup, "pipe failed"); |
| } |
| |
| void cleanup(void) |
| { |
| int i; |
| |
| for (i = 0; i < (sizeof(fd) / sizeof(fd[0])); i++) { |
| close(fd[i]); |
| close(nfd[i]); |
| } |
| |
| tst_rmdir(); |
| } |