168 lines
3.8 KiB
C
168 lines
3.8 KiB
C
/*
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*
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* Copyright (c) International Business Machines Corp., 2001
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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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* NAME
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* dup202.c
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*
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* DESCRIPTION
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* Is the access mode the same for both file descriptors?
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* 0: read only ? "0444"
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* 1: write only ? "0222"
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* 2: read/write ? "0666"
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*
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* ALGORITHM
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* Creat a file with each access mode; dup each file descriptor;
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* stat each file descriptor and compare modes of each pair
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*
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* USAGE: <for command-line>
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* dup202 [-c n] [-f] [-i n] [-I x] [-P x] [-t]
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* where, -c n : Run n copies concurrently.
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* -f : Turn off functionality Testing.
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* -i n : Execute test n times.
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* -I x : Execute test for x seconds.
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* -P x : Pause for x seconds between iterations.
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* -t : Turn on syscall timing.
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*
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* HISTORY
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* 07/2001 Ported by Wayne Boyer
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*
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* RESTRICTIONS
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* None
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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 <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include "test.h"
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#include "safe_macros.h"
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char *TCID = "dup202";
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int TST_TOTAL = 3;
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void setup(void);
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void cleanup(void);
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char testfile[40];
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int fail;
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int newfd;
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/* set these to a known index into our local file descriptor table */
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int duprdo = 10, dupwro = 20, duprdwr = 30;
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struct test_case_t {
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int *nfd;
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mode_t mode;
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} TC[] = {
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/* The first test creat(es) a file with mode 0444 */
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{
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&duprdo, (S_IRUSR | S_IRGRP | S_IROTH)},
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/* The second test creat(es) a file with mode 0222 */
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{
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&dupwro, (S_IWUSR | S_IWGRP | S_IWOTH)},
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/* The third test creat(es) a file with mode 0666 */
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{
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&duprdwr,
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(S_IRUSR | S_IRGRP | S_IROTH | S_IWUSR | S_IWGRP | S_IWOTH)}
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};
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int main(int ac, char **av)
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{
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int lc;
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int i, ofd;
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struct stat oldbuf, newbuf;
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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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tst_count = 0;
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/* loop through the test cases */
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for (i = 0; i < TST_TOTAL; i++) {
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if ((ofd = creat(testfile, TC[i].mode)) == -1)
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tst_brkm(TBROK | TERRNO, cleanup,
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"creat failed");
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TEST(dup2(ofd, *TC[i].nfd));
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if (TEST_RETURN == -1) {
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tst_resm(TFAIL | TTERRNO,
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"call failed unexpectedly");
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continue;
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}
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/* stat the original file */
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SAFE_FSTAT(cleanup, ofd, &oldbuf);
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/* stat the duped file */
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SAFE_FSTAT(cleanup, *TC[i].nfd, &newbuf);
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if (oldbuf.st_mode != newbuf.st_mode)
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tst_resm(TFAIL, "original and dup "
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"modes do not match");
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else
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tst_resm(TPASS, "fstat shows new and "
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"old modes are the same");
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/* remove the file so that we can use it again */
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if (close(*TC[i].nfd) == -1)
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perror("close failed");
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if (close(ofd) == -1)
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perror("close failed");
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if (unlink(testfile) == -1)
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perror("unlink failed");
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}
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}
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cleanup();
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tst_exit();
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}
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/*
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* setup() - performs all ONE TIME setup for this test.
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*/
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void setup(void)
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{
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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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(void)umask(0);
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sprintf(testfile, "dup202.%d", getpid());
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}
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/*
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* cleanup() - performs all ONE TIME cleanup for this test at
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* completion or premature exit.
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*/
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void cleanup(void)
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{
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tst_rmdir();
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}
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