@@ -1,208 +1,109 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
- *
- * 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
+ * Copyright (c) International Business Machines Corp., 2001
+ * 07/2001 Ported by Wayne Boyer
*/
-/*
- * NAME
- * dup203.c
+/*\
+ * [Description]
*
- * DESCRIPTION
- * Testcase to check the basic functionality of dup2().
+ * Testcase to check the basic functionality of dup2().
*
- * ALGORITHM
- * 1. Attempt to dup2() on an open file descriptor.
- * 2. Attempt to dup2() on a close file descriptor.
- *
- * USAGE: <for command-line>
- * dup203 [-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.
- *
- * HISTORY
- * 07/2001 Ported by Wayne Boyer
- *
- * RESTRICTIONS
- * NONE
+ * - Attempt to dup2() on an open file descriptor.
+ * - Attempt to dup2() on a close file descriptor.
*/
-#include <fcntl.h>
-#include <sys/param.h>
#include <errno.h>
-#include <string.h>
-#include "test.h"
-#include "safe_macros.h"
-
-void setup(void);
-void cleanup(void);
-
-char *TCID = "dup203";
-int TST_TOTAL = 1;
-
-int main(int ac, char **av)
+#include <stdio.h>
+#include <unistd.h>
+#include "tst_test.h"
+#include "tst_safe_macros.h"
+
+static char filename0[40], filename1[40];
+static int fd0, fd1;
+
+static struct tcase {
+ char *desc;
+ int is_close;
+} tcases[] = {
+ {"Test duping over an open fd", 0},
+ {"Test duping over a close fd", 1},
+};
+
+static void run(unsigned int i)
{
- int fd0, fd1, fd2, rval;
- char filename0[40], filename1[40];
+ int fd2, rval;
char buf[40];
- int lc;
-
- tst_parse_opts(ac, av, NULL, NULL);
-
- setup();
-
- for (lc = 0; TEST_LOOPING(lc); lc++) {
-
- tst_count = 0;
-//block1:
- tst_resm(TINFO, "Enter block 1");
- tst_resm(TINFO, "Test duping over an open fd");
-
- sprintf(filename0, "dup202.file0.%d\n", getpid());
- sprintf(filename1, "dup202.file1.%d\n", getpid());
- unlink(filename0);
- unlink(filename1);
-
- if ((fd0 = creat(filename0, 0666)) == -1)
- tst_brkm(TBROK, cleanup, "cannot create first file");
- if (write(fd0, filename0, strlen(filename0)) == -1)
- tst_brkm(TBROK, cleanup, "filename0: write(2) failed");
-
- if ((fd1 = creat(filename1, 0666)) == -1)
- tst_brkm(TBROK, cleanup, "Cannot create second file");
- if (write(fd1, filename1, strlen(filename1)) == -1)
- tst_brkm(TBROK, cleanup, "filename1: write(2) failed");
+ struct tcase *tc = tcases + i;
- SAFE_CLOSE(cleanup, fd0);
- if ((fd0 = open(filename0, O_RDONLY)) == -1)
- tst_brkm(TBROK, cleanup, "open(2) on filename0 failed");
+ tst_res(TINFO, tc->desc);
- SAFE_CLOSE(cleanup, fd1);
- if ((fd1 = open(filename1, O_RDONLY)) == -1)
- tst_brkm(TBROK, cleanup, "open(2) on filename1 failed");
+ fd0 = SAFE_CREAT(filename0, 0666);
+ SAFE_WRITE(1, fd0, filename0, strlen(filename0));
+ SAFE_CLOSE(fd0);
- TEST(dup2(fd0, fd1));
-
- if ((fd2 = TEST_RETURN) == -1) {
- tst_resm(TFAIL, "call failed unexpectedly");
- } else {
- if (fd1 != fd2) {
- tst_resm(TFAIL, "file descriptors don't match");
- break;
- }
-
- memset(buf, 0, sizeof(buf));
- if (read(fd2, buf, sizeof(buf)) == -1)
- tst_brkm(TBROK, cleanup, "read(2) failed");
- if (strcmp(buf, filename0) != 0)
- tst_resm(TFAIL, "read from file got bad data");
- tst_resm(TPASS, "dup2 test 1 functionality is correct");
- }
-
- close(fd0);
- close(fd1);
- close(fd2);
- unlink(filename0);
- unlink(filename1);
-
- tst_resm(TINFO, "Exit block 1");
-
-//block2:
- tst_resm(TINFO, "Enter block 2");
- tst_resm(TINFO, "Test close on exec flag");
-
- sprintf(filename0, "dup02.%d\n", getpid());
- unlink(filename0);
-
- if ((fd0 = creat(filename0, 0666)) == -1) {
- tst_brkm(TBROK, cleanup, "Cannot create first file");
- }
- if (fcntl(fd0, F_SETFD, 1) == -1) {
- tst_brkm(TBROK, cleanup, "setting close on exec flag "
- "on fd0 failed");
- }
-
- if ((fd2 = creat(filename1, 0666)) == -1) {
- tst_brkm(TBROK, cleanup, "Cannot create second file");
- }
+ fd1 = SAFE_CREAT(filename1, 0666);
+ SAFE_WRITE(1, fd1, filename1, strlen(filename1));
+ fd0 = SAFE_OPEN(filename0, O_RDONLY);
+ SAFE_FCNTL(fd0, F_SETFD, 1);
+ if (tc->is_close) {
/* SAFE_CLOSE() sets the fd to -1 avoid it here */
- rval = fd2;
- SAFE_CLOSE(cleanup, rval);
-
- TEST(dup2(fd0, fd2));
-
- if ((fd1 = TEST_RETURN) == -1) {
- tst_resm(TFAIL, "call failed unexpectedly");
- } else {
- if (fd1 != fd2) {
- tst_resm(TFAIL, "bad dup2 descriptor %d", fd1);
- break;
- }
-
- if ((rval = fcntl(fd1, F_GETFD, 0)) != 0) {
- tst_resm(TBROK | TERRNO,
- "fcntl F_GETFD on fd1 failed; expected a "
- "return value of 0x0, got %#x", rval);
- break;
- }
- if ((rval = (fcntl(fd0, F_GETFL, 0) & O_ACCMODE)) !=
- O_WRONLY) {
- tst_resm(TFAIL, "fctnl F_GETFL bad rval on fd0 "
- "Expected %#x got %#x", O_WRONLY,
- rval);
- }
- tst_resm(TPASS, "dup2 test 2 functionality is correct");
- }
-
- close(fd0);
- close(fd1);
-
- unlink(filename0);
- unlink(filename1);
- tst_resm(TINFO, "Exit block 2");
+ rval = fd1;
+ SAFE_CLOSE(rval);
+ }
+
+ TEST(dup2(fd0, fd1));
+ fd2 = TST_RET;
+ if (TST_RET == -1) {
+ tst_res(TFAIL, "call failed unexpectedly");
+ goto free;
+ }
+ if (fd1 != fd2) {
+ tst_res(TFAIL, "file descriptors don't match");
+ goto free;
}
- cleanup();
- tst_exit();
+ memset(buf, 0, sizeof(buf));
+ SAFE_READ(0, fd2, buf, sizeof(buf));
+ if (strcmp(buf, filename0) != 0)
+ tst_res(TFAIL, "read from file got bad data");
+ else
+ tst_res(TPASS, "test the content of file is correct");
+
+ rval = SAFE_FCNTL(fd2, F_GETFD);
+ if (rval != 0)
+ tst_res(TFAIL, "fcntl F_GETFD on fd2 failed; expected a "
+ "return value of 0x0, got %#x", rval);
+ else
+ tst_res(TPASS, "test the FD_CLOEXEC flag is correct");
+free:
+ SAFE_CLOSE(fd0);
+ SAFE_CLOSE(fd1);
+ SAFE_UNLINK(filename0);
+ SAFE_UNLINK(filename1);
}
-/*
- * setup() - performs all ONE TIME setup for this test.
- */
-void setup(void)
+static void setup(void)
{
+ int pid;
- tst_sig(NOFORK, DEF_HANDLER, cleanup);
-
- TEST_PAUSE;
-
- tst_tmpdir();
+ pid = getpid();
+ sprintf(filename0, "dup203.file0.%d\n", pid);
+ sprintf(filename1, "dup203.file1.%d\n", pid);
}
-/*
- * cleanup() - performs all ONE TIME cleanup for this test at
- * completion or premature exit.
- */
-void cleanup(void)
+static void cleanup(void)
{
- tst_rmdir();
+ close(fd0);
+ close(fd1);
}
+
+static struct tst_test test = {
+ .setup = setup,
+ .tcnt = ARRAY_SIZE(tcases),
+ .needs_tmpdir = 1,
+ .test = run,
+ .cleanup = cleanup,
+};