[LTP] [PATCH 1/2] syscalls/chmod0{1, 2}: Cleanup and Convert to the new API

[LTP] [PATCH 1/2] syscalls/chmod0{1, 2}: Cleanup and Convert to the new API

[Shiyang Ruan]

Testcases in chmod02 is contained in chmod01. So remove it.

Signed-off-by: Shiyang Ruan <ruansy.fnst@fujitsu.com>
---
 runtest/syscalls                           |   1 -
 testcases/kernel/syscalls/chmod/.gitignore |   1 -
 testcases/kernel/syscalls/chmod/chmod01.c  | 175 +++++----------------
 testcases/kernel/syscalls/chmod/chmod02.c  | 107 -------------
 4 files changed, 37 insertions(+), 247 deletions(-)
 delete mode 100644 testcases/kernel/syscalls/chmod/chmod02.c

diff --git a/runtest/syscalls b/runtest/syscalls
index fe22ae5b6..6108d5fdb 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -61,7 +61,6 @@ chdir04 chdir04
 
 chmod01 chmod01
 chmod01A symlink01 -T chmod01
-chmod02 chmod02
 chmod03 chmod03
 chmod04 chmod04
 chmod05 chmod05
diff --git a/testcases/kernel/syscalls/chmod/.gitignore b/testcases/kernel/syscalls/chmod/.gitignore
index 4e856df43..072fa5b80 100644
--- a/testcases/kernel/syscalls/chmod/.gitignore
+++ b/testcases/kernel/syscalls/chmod/.gitignore
@@ -1,5 +1,4 @@
 /chmod01
-/chmod02
 /chmod03
 /chmod04
 /chmod05
diff --git a/testcases/kernel/syscalls/chmod/chmod01.c b/testcases/kernel/syscalls/chmod/chmod01.c
index 55ddf8a73..cbe83dab0 100644
--- a/testcases/kernel/syscalls/chmod/chmod01.c
+++ b/testcases/kernel/syscalls/chmod/chmod01.c
@@ -1,159 +1,58 @@
+// 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
  */
 
-/*
- * Test Name: chmod01
- *
- * Test Description:
- *  Verify that, chmod(2) succeeds when used to change the mode permissions
- *  of a file.
- *
- * Expected Result:
- *  chmod(2) should return 0 and the mode permissions set on file should match
- *  the specified mode.
- *
- * Algorithm:
- *  Setup:
- *   Setup signal handling.
- *   Create temporary directory.
- *   Pause for SIGUSR1 if option specified.
- *
- *  Test:
- *   Loop if the proper options are given.
- *   Execute system call
- *   Check return code, if system call failed (return=-1)
- *   	Log the errno and Issue a FAIL message.
- *   Otherwise,
- *   	Verify the Functionality of system call
- *      if successful,
- *      	Issue Functionality-Pass message.
- *      Otherwise,
- *		Issue Functionality-Fail message.
- *  Cleanup:
- *   Print errno log and/or timing stats if options given
- *   Delete the temporary directory created.
- *
- * Usage:  <for command-line>
- *  chmod01 [-c n] [-e] [-f] [-i n] [-I x] [-P x] [-t]
- *     where,  -c n : Run n copies concurrently.
- *             -e   : Turn on errno logging.
- *             -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.
+/*\
+ * [DESCRIPTION]
  *
+ * Verify that, chmod(2) succeeds when used to change the mode permissions of
+ * a file/directory, and the mode permissions set on file should match the
+ * specified mode.
  */
 
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
 #include <errno.h>
-#include <string.h>
-#include <signal.h>
-
-#include "test.h"
-#include "safe_macros.h"
-
-#define FILE_MODE	S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH
-#define TESTFILE	"testfile"
-
-char *TCID = "chmod01";
-int TST_TOTAL = 8;
+#include <sys/stat.h>
+#include "tst_test.h"
 
-int modes[] = { 0, 07, 070, 0700, 0777, 02777, 04777, 06777 };
+#define FILE_MODE	(S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)
+#define DIR_MODE	(FILE_MODE | S_IXUSR | S_IXGRP | S_IXOTH)
 
-void setup();
-void cleanup();
+static int tmodes[] = { 0, 07, 070, 0700, 0777, 02777, 04777, 06777 };
+static char *tpaths[] = { "testfile", "testdir" };
 
-int main(int ac, char **av)
+static void verify_chmod(unsigned int i)
 {
 	struct stat stat_buf;
-	int lc;
-	int i;
-	int mode;
-
-	TST_TOTAL = sizeof(modes) / sizeof(int);
-
-	tst_parse_opts(ac, av, NULL, NULL);
-
-	setup();
-
-	for (lc = 0; TEST_LOOPING(lc); lc++) {
-
-		tst_count = 0;
-
-		for (i = 0; i < TST_TOTAL; i++) {
-			mode = modes[i];
+	int tmode = tmodes[i % ARRAY_SIZE(tmodes)];
+	char* tpath = tpaths[i / ARRAY_SIZE(tmodes)];
 
-			TEST(chmod(TESTFILE, mode));
+	TST_EXP_PASS_SILENT(chmod(tpath, tmode), "chmod(%s, %#o)", tpath, tmode);
 
-			if (TEST_RETURN == -1) {
-				tst_resm(TFAIL | TTERRNO,
-					 "chmod(%s, %#o) failed", TESTFILE,
-					 mode);
-				continue;
-			}
-			if (stat(TESTFILE, &stat_buf) < 0)
-				tst_brkm(TFAIL | TERRNO, cleanup,
-					 "stat(%s) failed", TESTFILE);
-			stat_buf.st_mode &= ~S_IFREG;
+	if (stat(tpath, &stat_buf) < 0)
+		tst_brk(TFAIL | TERRNO, "stat(%s) failed", tpath);
 
-			if (stat_buf.st_mode == (unsigned int)mode)
-				tst_resm(TPASS, "Functionality of "
-					 "chmod(%s, %#o) successful",
-					 TESTFILE, mode);
-			else
-				tst_resm(TFAIL, "%s: Incorrect "
-					 "modes 0%03o, Expected 0%03o",
-					 TESTFILE, stat_buf.st_mode,
-					 mode);
-		}
-	}
+	/* Ignore the file/dir flag */
+	stat_buf.st_mode &= ~S_IFREG;
+	stat_buf.st_mode &= ~S_IFDIR;
 
-	cleanup();
-	tst_exit();
+	if (stat_buf.st_mode == (unsigned int)tmode)
+		tst_res(TPASS, "Functionality of chmod(%s, %#o) successful",
+			tpath, tmode);
+	else
+		tst_res(TFAIL, "%s: Incorrect modes %#o, Expected %#o",
+			tpath, stat_buf.st_mode, tmode);
 }
 
-void setup(void)
+static void setup(void)
 {
-	int fd;
-
-	tst_sig(NOFORK, DEF_HANDLER, cleanup);
-
-	TEST_PAUSE;
-
-	tst_tmpdir();
-
-	fd = SAFE_OPEN(cleanup, TESTFILE, O_RDWR | O_CREAT, FILE_MODE);
-	SAFE_CLOSE(cleanup, fd);
-
+	SAFE_TOUCH(tpaths[0], FILE_MODE, NULL);
+	SAFE_MKDIR(tpaths[1], DIR_MODE);
 }
 
-void cleanup(void)
-{
-	tst_rmdir();
-}
+static struct tst_test test = {
+	.needs_tmpdir = 1,
+	.test = verify_chmod,
+	.tcnt = ARRAY_SIZE(tmodes) * ARRAY_SIZE(tpaths),
+	.setup = setup,
+};
diff --git a/testcases/kernel/syscalls/chmod/chmod02.c b/testcases/kernel/syscalls/chmod/chmod02.c
deleted file mode 100644
index 94a77aeb1..000000000
--- a/testcases/kernel/syscalls/chmod/chmod02.c
+++ /dev/null
@@ -1,107 +0,0 @@
-/*
- * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like.  Any license provided herein, whether implied or
- * otherwise, applies only to this software file.  Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA  94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/NoticeExplan/
- */
-
-/*
- * AUTHOR	: William Roske
- * CO-PILOT	: Dave Fenner
- * DATE STARTED	: 03/30/92
- *
- *  Calls chmod(2) with different modes and expects success.
- */
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <string.h>
-#include <signal.h>
-
-#include "test.h"
-#include "safe_macros.h"
-
-static int modes[] = { 0, 07, 070, 0700, 0777, 02777, 04777, 06777 };
-
-char *TCID = "chmod02";
-int TST_TOTAL = ARRAY_SIZE(modes);
-
-#define FNAME "test_file"
-
-static void setup(void);
-static void cleanup(void);
-
-int main(int ac, char **av)
-{
-	int lc, i;
-
-	tst_parse_opts(ac, av, NULL, NULL);
-
-	setup();
-
-	for (lc = 0; TEST_LOOPING(lc); lc++) {
-
-		tst_count = 0;
-
-		for (i = 0; i < TST_TOTAL; i++) {
-
-			TEST(chmod(FNAME, modes[i]));
-
-			if (TEST_RETURN == -1) {
-				tst_resm(TFAIL | TTERRNO,
-					 "chmod(%s, %#o) failed", FNAME, modes[i]);
-			} else {
-				tst_resm(TPASS,
-					 "chmod(%s, %#o) returned %ld",
-					 FNAME, modes[i], TEST_RETURN);
-			}
-		}
-
-	}
-
-	cleanup();
-	tst_exit();
-}
-
-static void setup(void)
-{
-	tst_sig(NOFORK, DEF_HANDLER, cleanup);
-
-	TEST_PAUSE;
-
-	tst_tmpdir();
-
-	SAFE_FILE_PRINTF(cleanup, FNAME, "File content\n");
-}
-
-static void cleanup(void)
-{
-	tst_rmdir();
-}
-- 
2.30.1

[LTP] [PATCH 2/2] syscalls/chmod0{3, 4}: Cleanup and Convert to the new API.

[Shiyang Ruan]

chmod03 and chmod04 test on file and directory with same logic, so
combine them together.

Signed-off-by: Shiyang Ruan <ruansy.fnst@fujitsu.com>
---
 runtest/syscalls                           |   1 -
 testcases/kernel/syscalls/chmod/.gitignore |   1 -
 testcases/kernel/syscalls/chmod/chmod03.c  | 196 ++++-----------------
 testcases/kernel/syscalls/chmod/chmod04.c  | 191 --------------------
 4 files changed, 36 insertions(+), 353 deletions(-)
 delete mode 100644 testcases/kernel/syscalls/chmod/chmod04.c

diff --git a/runtest/syscalls b/runtest/syscalls
index 6108d5fdb..2bf870709 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -62,7 +62,6 @@ chdir04 chdir04
 chmod01 chmod01
 chmod01A symlink01 -T chmod01
 chmod03 chmod03
-chmod04 chmod04
 chmod05 chmod05
 chmod06 chmod06
 chmod07 chmod07
diff --git a/testcases/kernel/syscalls/chmod/.gitignore b/testcases/kernel/syscalls/chmod/.gitignore
index 072fa5b80..27ddfce16 100644
--- a/testcases/kernel/syscalls/chmod/.gitignore
+++ b/testcases/kernel/syscalls/chmod/.gitignore
@@ -1,6 +1,5 @@
 /chmod01
 /chmod03
-/chmod04
 /chmod05
 /chmod06
 /chmod07
diff --git a/testcases/kernel/syscalls/chmod/chmod03.c b/testcases/kernel/syscalls/chmod/chmod03.c
index f53e437e4..e451ca65a 100644
--- a/testcases/kernel/syscalls/chmod/chmod03.c
+++ b/testcases/kernel/syscalls/chmod/chmod03.c
@@ -1,183 +1,59 @@
+// 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
  */
 
-/*
- * Test Name: chmod03
+/*\
+ * [DESCRIPTION]
  *
- * Test Description:
- *  Verify that, chmod(2) will succeed to change the mode of a file
- *  and set the sticky bit on it if invoked by non-root (uid != 0)
- *  process with the following constraints,
- *	- the process is the owner of the file.
+ * Verify that, chmod(2) will succeed to change the mode of a file/directory
+ * and set the sticky bit on it if invoked by non-root (uid != 0) process with
+ * the following constraints:
+ *	- the process is the owner of the directory.
  *	- the effective group ID or one of the supplementary group ID's of the
- *	  process is equal to the group ID of the file.
- *
- * Expected Result:
- *  chmod() should return value 0 on success and succeeds to change
- *  the mode of specified file with sticky bit set on it.
- *
- * Algorithm:
- *  Setup:
- *   Setup signal handling.
- *   Create temporary directory.
- *   Pause for SIGUSR1 if option specified.
- *
- *  Test:
- *   Loop if the proper options are given.
- *   Execute system call
- *   Check return code, if system call failed (return=-1)
- *   	Log the errno and Issue a FAIL message.
- *   Otherwise,
- *   	Verify the Functionality of system call
- *      if successful,
- *      	Issue Functionality-Pass message.
- *      Otherwise,
- *		Issue Functionality-Fail message.
- *  Cleanup:
- *   Print errno log and/or timing stats if options given
- *   Delete the temporary directory created.
- *
- * Usage:  <for command-line>
- *  chmod03 [-c n] [-e] [-f] [-i n] [-I x] [-p x] [-t]
- *     where,  -c n : Run n copies concurrently.
- *             -e   : Turn on errno logging.
- *             -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:
- *  This test should be run by 'non-super-user' only.
- *
+ *	  process is equal to the group ID of the directory.
  */
 
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
 #include <errno.h>
-#include <string.h>
-#include <signal.h>
-#include <pwd.h>
-
-#include "test.h"
-#include "safe_macros.h"
-
-#define FILE_MODE       S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH
-#define PERMS		01777	/*
-				 * Mode permissions of test file with sticky
-				 * bit set.
-				 */
-#define TESTFILE	"testfile"
+#include <sys/stat.h>
+#include "tst_test.h"
 
-char *TCID = "chmod03";
-int TST_TOTAL = 1;
-char nobody_uid[] = "nobody";
-struct passwd *ltpuser;
+#define FILE_MODE	(S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)
+#define DIR_MODE	(S_IRWXU | S_IRWXG | S_IRWXO)
+/* Mode permissions of test directory with sticky bit set. */
+#define PERMS		01777
 
-void setup();			/* Main setup function for the test */
-void cleanup();			/* Main cleanup function for the test */
+static char *tpaths[] = { "testfile", "testdir" };
 
-int main(int ac, char **av)
+static void verify_chmod(unsigned int i)
 {
 	struct stat stat_buf;
-	int lc;
-	mode_t file_mode;
-
-	tst_parse_opts(ac, av, NULL, NULL);
-
-	setup();
+	char *tpath = tpaths[i];
 
-	for (lc = 0; TEST_LOOPING(lc); lc++) {
+	TST_EXP_PASS_SILENT(chmod(tpath, PERMS), "chmod(%s, %#o)", tpath, PERMS);
 
-		tst_count = 0;
+	if (stat(tpath, &stat_buf) < 0)
+		tst_brk(TFAIL | TERRNO, "stat(%s) failed", tpath);
 
-		TEST(chmod(TESTFILE, PERMS));
-
-		if (TEST_RETURN == -1) {
-			tst_resm(TFAIL | TTERRNO, "chmod(%s, %#o) failed",
-				 TESTFILE, PERMS);
-			continue;
-		}
-		if (stat(TESTFILE, &stat_buf) < 0) {
-			tst_brkm(TFAIL | TERRNO, cleanup,
-				 "stat(%s) failed", TESTFILE);
-		}
-		file_mode = stat_buf.st_mode;
-
-		/* Verify STICKY BIT set on testfile */
-		if ((file_mode & PERMS) != PERMS) {
-			tst_resm(TFAIL, "%s: Incorrect modes 0%3o, "
-				 "Expected 0777", TESTFILE, file_mode);
-		} else {
-			tst_resm(TPASS, "Functionality of "
-				 "chmod(%s, %#o) successful",
-				 TESTFILE, PERMS);
-		}
+	/* Verify STICKY BIT SET on file/directory */
+	if ((stat_buf.st_mode & PERMS) == PERMS) {
+		tst_res(TPASS, "Functionality of chmod(%s, %#o) successful",
+			tpath, PERMS);
+	} else {
+		tst_res(TFAIL, "%s: Incorrect modes 0%03o, Expected 0%03o",
+			tpath, stat_buf.st_mode, PERMS);
 	}
-
-	cleanup();
-	tst_exit();
 }
 
 void setup(void)
 {
-	int fd;
-
-	tst_sig(NOFORK, DEF_HANDLER, cleanup);
-
-	tst_require_root();
-	ltpuser = getpwnam(nobody_uid);
-	if (ltpuser == NULL)
-		tst_brkm(TBROK | TERRNO, NULL, "getpwnam failed");
-	SAFE_SETUID(NULL, ltpuser->pw_uid);
-
-	TEST_PAUSE;
-
-	tst_tmpdir();
-
-	/*
-	 * Create a test file under temporary directory with specified
-	 * mode permissios and set the ownership of the test file to the
-	 * uid/gid of guest user.
-	 */
-	if ((fd = open(TESTFILE, O_RDWR | O_CREAT, FILE_MODE)) == -1) {
-		tst_brkm(TBROK | TERRNO, cleanup,
-			 "open(%s, O_RDWR|O_CREAT, %#o) failed",
-			 TESTFILE, FILE_MODE);
-	}
-
-	SAFE_CLOSE(cleanup, fd);
+	SAFE_TOUCH(tpaths[0], FILE_MODE, NULL);
+	SAFE_MKDIR(tpaths[1], DIR_MODE);
 }
 
-/*
- * void
- * cleanup() - performs all ONE TIME cleanup for this test at
- *		completion or premature exit.
- *  Delete the testfile and temporary directory created in setup().
- */
-void cleanup(void)
-{
-
-	tst_rmdir();
-
-}
+static struct tst_test test = {
+	.needs_tmpdir = 1,
+	.tcnt = ARRAY_SIZE(tpaths),
+	.test = verify_chmod,
+	.setup = setup,
+};
diff --git a/testcases/kernel/syscalls/chmod/chmod04.c b/testcases/kernel/syscalls/chmod/chmod04.c
deleted file mode 100644
index cbc13cf61..000000000
--- a/testcases/kernel/syscalls/chmod/chmod04.c
+++ /dev/null
@@ -1,191 +0,0 @@
-/*
- *
- *   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
- */
-
-/*
- * Test Name: chmod04
- *
- * Test Description:
- *  Verify that, chmod(2) will succeed to change the mode of a directory
- *  and set the sticky bit on it if invoked by non-root (uid != 0) process
- *  with the following constraints,
- *	- the process is the owner of the directory.
- *	- the effective group ID or one of the supplementary group ID's of the
- *	  process is equal to the group ID of the directory.
- *
- * Expected Result:
- *  chmod() should return value 0 on success and succeeds to set sticky bit
- *  on the specified directory.
- *
- * Algorithm:
- *  Setup:
- *   Setup signal handling.
- *   Create temporary directory.
- *   Pause for SIGUSR1 if option specified.
- *
- *  Test:
- *   Loop if the proper options are given.
- *   Execute system call
- *   Check return code, if system call failed (return=-1)
- *   	Log the errno and Issue a FAIL message.
- *   Otherwise,
- *   	Verify the Functionality of system call
- *      if successful,
- *      	Issue Functionality-Pass message.
- *      Otherwise,
- *		Issue Functionality-Fail message.
- *  Cleanup:
- *   Print errno log and/or timing stats if options given
- *   Delete the temporary directory created.
- *
- * Usage:  <for command-line>
- *  chmod04 [-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:
- *  This test should be run by 'non-super-user' only.
- *
- */
-
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <string.h>
-#include <signal.h>
-#include <pwd.h>
-
-#include "test.h"
-#include "safe_macros.h"
-
-#define DIR_MODE 	S_IRWXU | S_IRWXG | S_IRWXO
-#define PERMS		01777	/*
-				 * Mode permissions of test directory with
-				 * sticky bit set.
-				 */
-#define TESTDIR		"testdir_4"
-
-char *TCID = "chmod04";
-int TST_TOTAL = 1;
-char nobody_uid[] = "nobody";
-struct passwd *ltpuser;
-
-void setup();
-void cleanup();
-
-int main(int ac, char **av)
-{
-	struct stat stat_buf;	/* stat struct. */
-	int lc;
-	mode_t dir_mode;	/* mode permissions set on testdirectory */
-
-	tst_parse_opts(ac, av, NULL, NULL);
-
-	setup();
-
-	for (lc = 0; TEST_LOOPING(lc); lc++) {
-
-		tst_count = 0;
-
-		/*
-		 * Call chmod(2) with mode argument to
-		 * set sticky bit on TESTDIR
-		 */
-		TEST(chmod(TESTDIR, PERMS));
-
-		if (TEST_RETURN == -1) {
-			tst_resm(TFAIL | TTERRNO, "chmod(%s, %#o) failed",
-				 TESTDIR, PERMS);
-			continue;
-		}
-
-		/*
-		 * Get the file information using
-		 * stat(2).
-		 */
-		if (stat(TESTDIR, &stat_buf) < 0) {
-			tst_brkm(TFAIL, cleanup,
-				 "stat(2) of %s failed, errno:%d",
-				 TESTDIR, TEST_ERRNO);
-		}
-		dir_mode = stat_buf.st_mode;
-
-		/* Verify STICKY BIT SET on directory */
-		if ((dir_mode & PERMS) == PERMS) {
-			tst_resm(TPASS, "Functionality of "
-				 "chmod(%s, %#o) successful",
-				 TESTDIR, PERMS);
-		} else {
-			tst_resm(TFAIL, "%s: Incorrect modes 0%03o, "
-				 "Expected 0%03o",
-				 TESTDIR, dir_mode, PERMS);
-		}
-	}
-
-	cleanup();
-	tst_exit();
-}
-
-/*
- * void
- * setup() - performs all ONE TIME setup for this test.
- *  Create a temporary directory and cd to it.
- *  Create another test directory under temporary directory.
- */
-void setup(void)
-{
-
-	tst_sig(NOFORK, DEF_HANDLER, cleanup);
-
-	tst_require_root();
-	ltpuser = getpwnam(nobody_uid);
-	if (setuid(ltpuser->pw_uid) == -1)
-		tst_resm(TINFO | TERRNO, "setuid(%u) failed", ltpuser->pw_uid);
-
-	TEST_PAUSE;
-
-	tst_tmpdir();
-
-	/*
-	 * Create a test directory under temporary directory with specified
-	 * mode permissios.
-	 */
-	SAFE_MKDIR(cleanup, TESTDIR, DIR_MODE);
-}
-
-/*
- * void
- * cleanup() - performs all ONE TIME cleanup for this test at
- *		completion or premature exit.
- *  Remove the test directory and temporary directory created in setup().
- */
-void cleanup(void)
-{
-
-	tst_rmdir();
-
-}
-- 
2.30.1

[LTP] [PATCH 1/2] syscalls/chmod0{1, 2}: Cleanup and Convert to the new API

[yangx.jy]

On 2021/3/12 14:57, Shiyang Ruan wrote:
> Testcases in chmod02 is contained in chmod01. So remove it.
>
> Signed-off-by: Shiyang Ruan<ruansy.fnst@fujitsu.com>
> ---
>   runtest/syscalls                           |   1 -
>   testcases/kernel/syscalls/chmod/.gitignore |   1 -
>   testcases/kernel/syscalls/chmod/chmod01.c  | 175 +++++----------------
>   testcases/kernel/syscalls/chmod/chmod02.c  | 107 -------------
>   4 files changed, 37 insertions(+), 247 deletions(-)
>   delete mode 100644 testcases/kernel/syscalls/chmod/chmod02.c
>
> diff --git a/runtest/syscalls b/runtest/syscalls
> index fe22ae5b6..6108d5fdb 100644
> --- a/runtest/syscalls
> +++ b/runtest/syscalls
> @@ -61,7 +61,6 @@ chdir04 chdir04
>
>   chmod01 chmod01
>   chmod01A symlink01 -T chmod01
> -chmod02 chmod02
>   chmod03 chmod03
>   chmod04 chmod04
>   chmod05 chmod05
> diff --git a/testcases/kernel/syscalls/chmod/.gitignore b/testcases/kernel/syscalls/chmod/.gitignore
> index 4e856df43..072fa5b80 100644
> --- a/testcases/kernel/syscalls/chmod/.gitignore
> +++ b/testcases/kernel/syscalls/chmod/.gitignore
> @@ -1,5 +1,4 @@
>   /chmod01
> -/chmod02
>   /chmod03
>   /chmod04
>   /chmod05
> diff --git a/testcases/kernel/syscalls/chmod/chmod01.c b/testcases/kernel/syscalls/chmod/chmod01.c
> index 55ddf8a73..cbe83dab0 100644
> --- a/testcases/kernel/syscalls/chmod/chmod01.c
> +++ b/testcases/kernel/syscalls/chmod/chmod01.c
> @@ -1,159 +1,58 @@
> +// 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
>    */
>
> -/*
> - * Test Name: chmod01
> - *
> - * Test Description:
> - *  Verify that, chmod(2) succeeds when used to change the mode permissions
> - *  of a file.
> - *
> - * Expected Result:
> - *  chmod(2) should return 0 and the mode permissions set on file should match
> - *  the specified mode.
> - *
> - * Algorithm:
> - *  Setup:
> - *   Setup signal handling.
> - *   Create temporary directory.
> - *   Pause for SIGUSR1 if option specified.
> - *
> - *  Test:
> - *   Loop if the proper options are given.
> - *   Execute system call
> - *   Check return code, if system call failed (return=-1)
> - *   	Log the errno and Issue a FAIL message.
> - *   Otherwise,
> - *   	Verify the Functionality of system call
> - *      if successful,
> - *      	Issue Functionality-Pass message.
> - *      Otherwise,
> - *		Issue Functionality-Fail message.
> - *  Cleanup:
> - *   Print errno log and/or timing stats if options given
> - *   Delete the temporary directory created.
> - *
> - * Usage:<for command-line>
> - *  chmod01 [-c n] [-e] [-f] [-i n] [-I x] [-P x] [-t]
> - *     where,  -c n : Run n copies concurrently.
> - *             -e   : Turn on errno logging.
> - *             -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.
> +/*\
> + * [DESCRIPTION]
>    *
> + * Verify that, chmod(2) succeeds when used to change the mode permissions of
> + * a file/directory, and the mode permissions set on file should match the
> + * specified mode.
>    */
>
> -#include<stdio.h>
> -#include<sys/types.h>
> -#include<sys/stat.h>
> -#include<fcntl.h>
>   #include<errno.h>
> -#include<string.h>
> -#include<signal.h>
> -
> -#include "test.h"
> -#include "safe_macros.h"
> -
> -#define FILE_MODE	S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH
> -#define TESTFILE	"testfile"
> -
> -char *TCID = "chmod01";
> -int TST_TOTAL = 8;
> +#include<sys/stat.h>
> +#include "tst_test.h"
>
> -int modes[] = { 0, 07, 070, 0700, 0777, 02777, 04777, 06777 };
> +#define FILE_MODE	(S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)
> +#define DIR_MODE	(FILE_MODE | S_IXUSR | S_IXGRP | S_IXOTH)
>
> -void setup();
> -void cleanup();
> +static int tmodes[] = { 0, 07, 070, 0700, 0777, 02777, 04777, 06777 };
> +static char *tpaths[] = { "testfile", "testdir" };
>
> -int main(int ac, char **av)
> +static void verify_chmod(unsigned int i)
>   {
>   	struct stat stat_buf;
> -	int lc;
> -	int i;
> -	int mode;
> -
> -	TST_TOTAL = sizeof(modes) / sizeof(int);
> -
> -	tst_parse_opts(ac, av, NULL, NULL);
> -
> -	setup();
> -
> -	for (lc = 0; TEST_LOOPING(lc); lc++) {
> -
> -		tst_count = 0;
> -
> -		for (i = 0; i<  TST_TOTAL; i++) {
> -			mode = modes[i];
> +	int tmode = tmodes[i % ARRAY_SIZE(tmodes)];
> +	char* tpath = tpaths[i / ARRAY_SIZE(tmodes)];
>
> -			TEST(chmod(TESTFILE, mode));
> +	TST_EXP_PASS_SILENT(chmod(tpath, tmode), "chmod(%s, %#o)", tpath, tmode);
>
> -			if (TEST_RETURN == -1) {
> -				tst_resm(TFAIL | TTERRNO,
> -					 "chmod(%s, %#o) failed", TESTFILE,
> -					 mode);
> -				continue;
> -			}
> -			if (stat(TESTFILE,&stat_buf)<  0)
> -				tst_brkm(TFAIL | TERRNO, cleanup,
> -					 "stat(%s) failed", TESTFILE);
> -			stat_buf.st_mode&= ~S_IFREG;
> +	if (stat(tpath,&stat_buf)<  0)
> +		tst_brk(TFAIL | TERRNO, "stat(%s) failed", tpath);
Hi Ruan,

It is ok to use SAFE_STAT() macro here.

>
> -			if (stat_buf.st_mode == (unsigned int)mode)
> -				tst_resm(TPASS, "Functionality of "
> -					 "chmod(%s, %#o) successful",
> -					 TESTFILE, mode);
> -			else
> -				tst_resm(TFAIL, "%s: Incorrect "
> -					 "modes 0%03o, Expected 0%03o",
> -					 TESTFILE, stat_buf.st_mode,
> -					 mode);
> -		}
> -	}
> +	/* Ignore the file/dir flag */
> +	stat_buf.st_mode&= ~S_IFREG;
> +	stat_buf.st_mode&= ~S_IFDIR;

Why do you need two steps?
How about stat_buf.st_mode &= ~(S_IFREG | S_IFDIR) or stat_buf.st_mode 
&= ~S_IFMT?

Best Regards,
Xiao Yang
>
> -	cleanup();
> -	tst_exit();
> +	if (stat_buf.st_mode == (unsigned int)tmode)
> +		tst_res(TPASS, "Functionality of chmod(%s, %#o) successful",
> +			tpath, tmode);
> +	else
> +		tst_res(TFAIL, "%s: Incorrect modes %#o, Expected %#o",
> +			tpath, stat_buf.st_mode, tmode);
>   }
>
> -void setup(void)
> +static void setup(void)
>   {
> -	int fd;
> -
> -	tst_sig(NOFORK, DEF_HANDLER, cleanup);
> -
> -	TEST_PAUSE;
> -
> -	tst_tmpdir();
> -
> -	fd = SAFE_OPEN(cleanup, TESTFILE, O_RDWR | O_CREAT, FILE_MODE);
> -	SAFE_CLOSE(cleanup, fd);
> -
> +	SAFE_TOUCH(tpaths[0], FILE_MODE, NULL);
> +	SAFE_MKDIR(tpaths[1], DIR_MODE);
>   }
>
> -void cleanup(void)
> -{
> -	tst_rmdir();
> -}
> +static struct tst_test test = {
> +	.needs_tmpdir = 1,
> +	.test = verify_chmod,
> +	.tcnt = ARRAY_SIZE(tmodes) * ARRAY_SIZE(tpaths),
> +	.setup = setup,
> +};
> diff --git a/testcases/kernel/syscalls/chmod/chmod02.c b/testcases/kernel/syscalls/chmod/chmod02.c
> deleted file mode 100644
> index 94a77aeb1..000000000
> --- a/testcases/kernel/syscalls/chmod/chmod02.c
> +++ /dev/null
> @@ -1,107 +0,0 @@
> -/*
> - * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
> - *
> - * This program is free software; you can redistribute it and/or modify it
> - * under the terms of version 2 of the GNU General Public License as
> - * published by the Free Software Foundation.
> - *
> - * This program is distributed in the hope that it would be useful, but
> - * WITHOUT ANY WARRANTY; without even the implied warranty of
> - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> - *
> - * Further, this software is distributed without any warranty that it is
> - * free of the rightful claim of any third person regarding infringement
> - * or the like.  Any license provided herein, whether implied or
> - * otherwise, applies only to this software file.  Patent licenses, if
> - * any, provided herein do not apply to combinations of this program with
> - * other software, or any other product whatsoever.
> - *
> - * You should have received a copy of the GNU General Public License along
> - * with this program; if not, write the Free Software Foundation, Inc.,
> - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
> - *
> - * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
> - * Mountain View, CA  94043, or:
> - *
> - * http://www.sgi.com
> - *
> - * For further information regarding this notice, see:
> - *
> - * http://oss.sgi.com/projects/GenInfo/NoticeExplan/
> - */
> -
> -/*
> - * AUTHOR	: William Roske
> - * CO-PILOT	: Dave Fenner
> - * DATE STARTED	: 03/30/92
> - *
> - *  Calls chmod(2) with different modes and expects success.
> - */
> -
> -#include<sys/types.h>
> -#include<sys/stat.h>
> -#include<fcntl.h>
> -#include<errno.h>
> -#include<string.h>
> -#include<signal.h>
> -
> -#include "test.h"
> -#include "safe_macros.h"
> -
> -static int modes[] = { 0, 07, 070, 0700, 0777, 02777, 04777, 06777 };
> -
> -char *TCID = "chmod02";
> -int TST_TOTAL = ARRAY_SIZE(modes);
> -
> -#define FNAME "test_file"
> -
> -static void setup(void);
> -static void cleanup(void);
> -
> -int main(int ac, char **av)
> -{
> -	int lc, i;
> -
> -	tst_parse_opts(ac, av, NULL, NULL);
> -
> -	setup();
> -
> -	for (lc = 0; TEST_LOOPING(lc); lc++) {
> -
> -		tst_count = 0;
> -
> -		for (i = 0; i<  TST_TOTAL; i++) {
> -
> -			TEST(chmod(FNAME, modes[i]));
> -
> -			if (TEST_RETURN == -1) {
> -				tst_resm(TFAIL | TTERRNO,
> -					 "chmod(%s, %#o) failed", FNAME, modes[i]);
> -			} else {
> -				tst_resm(TPASS,
> -					 "chmod(%s, %#o) returned %ld",
> -					 FNAME, modes[i], TEST_RETURN);
> -			}
> -		}
> -
> -	}
> -
> -	cleanup();
> -	tst_exit();
> -}
> -
> -static void setup(void)
> -{
> -	tst_sig(NOFORK, DEF_HANDLER, cleanup);
> -
> -	TEST_PAUSE;
> -
> -	tst_tmpdir();
> -
> -	SAFE_FILE_PRINTF(cleanup, FNAME, "File content\n");
> -}
> -
> -static void cleanup(void)
> -{
> -	tst_rmdir();
> -}

[LTP] [PATCH 2/2] syscalls/chmod0{3, 4}: Cleanup and Convert to the new API.

[yangx.jy]

Hi Ruan,

After looking into the chmod03 and chmod04, I wonder if we can also 
merge chmod03 and chmod04 into chmod01?
Because of two reasons:
1) All of them just set mode by chmod() and check mode by stat().
2) Without needs_root =1, we can run them with any users(root or no-root).

Best Regards,
Xiao Yang
On 2021/3/12 14:57, Shiyang Ruan wrote:
> chmod03 and chmod04 test on file and directory with same logic, so
> combine them together.
>
> Signed-off-by: Shiyang Ruan<ruansy.fnst@fujitsu.com>
> ---
>   runtest/syscalls                           |   1 -
>   testcases/kernel/syscalls/chmod/.gitignore |   1 -
>   testcases/kernel/syscalls/chmod/chmod03.c  | 196 ++++-----------------
>   testcases/kernel/syscalls/chmod/chmod04.c  | 191 --------------------
>   4 files changed, 36 insertions(+), 353 deletions(-)
>   delete mode 100644 testcases/kernel/syscalls/chmod/chmod04.c
>
> diff --git a/runtest/syscalls b/runtest/syscalls
> index 6108d5fdb..2bf870709 100644
> --- a/runtest/syscalls
> +++ b/runtest/syscalls
> @@ -62,7 +62,6 @@ chdir04 chdir04
>   chmod01 chmod01
>   chmod01A symlink01 -T chmod01
>   chmod03 chmod03
> -chmod04 chmod04
>   chmod05 chmod05
>   chmod06 chmod06
>   chmod07 chmod07
> diff --git a/testcases/kernel/syscalls/chmod/.gitignore b/testcases/kernel/syscalls/chmod/.gitignore
> index 072fa5b80..27ddfce16 100644
> --- a/testcases/kernel/syscalls/chmod/.gitignore
> +++ b/testcases/kernel/syscalls/chmod/.gitignore
> @@ -1,6 +1,5 @@
>   /chmod01
>   /chmod03
> -/chmod04
>   /chmod05
>   /chmod06
>   /chmod07
> diff --git a/testcases/kernel/syscalls/chmod/chmod03.c b/testcases/kernel/syscalls/chmod/chmod03.c
> index f53e437e4..e451ca65a 100644
> --- a/testcases/kernel/syscalls/chmod/chmod03.c
> +++ b/testcases/kernel/syscalls/chmod/chmod03.c
> @@ -1,183 +1,59 @@
> +// 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
>    */
>
> -/*
> - * Test Name: chmod03
> +/*\
> + * [DESCRIPTION]
>    *
> - * Test Description:
> - *  Verify that, chmod(2) will succeed to change the mode of a file
> - *  and set the sticky bit on it if invoked by non-root (uid != 0)
> - *  process with the following constraints,
> - *	- the process is the owner of the file.
> + * Verify that, chmod(2) will succeed to change the mode of a file/directory
> + * and set the sticky bit on it if invoked by non-root (uid != 0) process with
> + * the following constraints:
> + *	- the process is the owner of the directory.
>    *	- the effective group ID or one of the supplementary group ID's of the
> - *	  process is equal to the group ID of the file.
> - *
> - * Expected Result:
> - *  chmod() should return value 0 on success and succeeds to change
> - *  the mode of specified file with sticky bit set on it.
> - *
> - * Algorithm:
> - *  Setup:
> - *   Setup signal handling.
> - *   Create temporary directory.
> - *   Pause for SIGUSR1 if option specified.
> - *
> - *  Test:
> - *   Loop if the proper options are given.
> - *   Execute system call
> - *   Check return code, if system call failed (return=-1)
> - *   	Log the errno and Issue a FAIL message.
> - *   Otherwise,
> - *   	Verify the Functionality of system call
> - *      if successful,
> - *      	Issue Functionality-Pass message.
> - *      Otherwise,
> - *		Issue Functionality-Fail message.
> - *  Cleanup:
> - *   Print errno log and/or timing stats if options given
> - *   Delete the temporary directory created.
> - *
> - * Usage:<for command-line>
> - *  chmod03 [-c n] [-e] [-f] [-i n] [-I x] [-p x] [-t]
> - *     where,  -c n : Run n copies concurrently.
> - *             -e   : Turn on errno logging.
> - *             -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:
> - *  This test should be run by 'non-super-user' only.
> - *
> + *	  process is equal to the group ID of the directory.
>    */
>
> -#include<stdio.h>
> -#include<sys/types.h>
> -#include<sys/stat.h>
> -#include<fcntl.h>
>   #include<errno.h>
> -#include<string.h>
> -#include<signal.h>
> -#include<pwd.h>
> -
> -#include "test.h"
> -#include "safe_macros.h"
> -
> -#define FILE_MODE       S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH
> -#define PERMS		01777	/*
> -				 * Mode permissions of test file with sticky
> -				 * bit set.
> -				 */
> -#define TESTFILE	"testfile"
> +#include<sys/stat.h>
> +#include "tst_test.h"
>
> -char *TCID = "chmod03";
> -int TST_TOTAL = 1;
> -char nobody_uid[] = "nobody";
> -struct passwd *ltpuser;
> +#define FILE_MODE	(S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)
> +#define DIR_MODE	(S_IRWXU | S_IRWXG | S_IRWXO)
> +/* Mode permissions of test directory with sticky bit set. */
> +#define PERMS		01777
>
> -void setup();			/* Main setup function for the test */
> -void cleanup();			/* Main cleanup function for the test */
> +static char *tpaths[] = { "testfile", "testdir" };
>
> -int main(int ac, char **av)
> +static void verify_chmod(unsigned int i)
>   {
>   	struct stat stat_buf;
> -	int lc;
> -	mode_t file_mode;
> -
> -	tst_parse_opts(ac, av, NULL, NULL);
> -
> -	setup();
> +	char *tpath = tpaths[i];
>
> -	for (lc = 0; TEST_LOOPING(lc); lc++) {
> +	TST_EXP_PASS_SILENT(chmod(tpath, PERMS), "chmod(%s, %#o)", tpath, PERMS);
>
> -		tst_count = 0;
> +	if (stat(tpath,&stat_buf)<  0)
> +		tst_brk(TFAIL | TERRNO, "stat(%s) failed", tpath);
>
> -		TEST(chmod(TESTFILE, PERMS));
> -
> -		if (TEST_RETURN == -1) {
> -			tst_resm(TFAIL | TTERRNO, "chmod(%s, %#o) failed",
> -				 TESTFILE, PERMS);
> -			continue;
> -		}
> -		if (stat(TESTFILE,&stat_buf)<  0) {
> -			tst_brkm(TFAIL | TERRNO, cleanup,
> -				 "stat(%s) failed", TESTFILE);
> -		}
> -		file_mode = stat_buf.st_mode;
> -
> -		/* Verify STICKY BIT set on testfile */
> -		if ((file_mode&  PERMS) != PERMS) {
> -			tst_resm(TFAIL, "%s: Incorrect modes 0%3o, "
> -				 "Expected 0777", TESTFILE, file_mode);
> -		} else {
> -			tst_resm(TPASS, "Functionality of "
> -				 "chmod(%s, %#o) successful",
> -				 TESTFILE, PERMS);
> -		}
> +	/* Verify STICKY BIT SET on file/directory */
> +	if ((stat_buf.st_mode&  PERMS) == PERMS) {
> +		tst_res(TPASS, "Functionality of chmod(%s, %#o) successful",
> +			tpath, PERMS);
> +	} else {
> +		tst_res(TFAIL, "%s: Incorrect modes 0%03o, Expected 0%03o",
> +			tpath, stat_buf.st_mode, PERMS);
>   	}
> -
> -	cleanup();
> -	tst_exit();
>   }
>
>   void setup(void)
>   {
> -	int fd;
> -
> -	tst_sig(NOFORK, DEF_HANDLER, cleanup);
> -
> -	tst_require_root();
> -	ltpuser = getpwnam(nobody_uid);
> -	if (ltpuser == NULL)
> -		tst_brkm(TBROK | TERRNO, NULL, "getpwnam failed");
> -	SAFE_SETUID(NULL, ltpuser->pw_uid);
> -
> -	TEST_PAUSE;
> -
> -	tst_tmpdir();
> -
> -	/*
> -	 * Create a test file under temporary directory with specified
> -	 * mode permissios and set the ownership of the test file to the
> -	 * uid/gid of guest user.
> -	 */
> -	if ((fd = open(TESTFILE, O_RDWR | O_CREAT, FILE_MODE)) == -1) {
> -		tst_brkm(TBROK | TERRNO, cleanup,
> -			 "open(%s, O_RDWR|O_CREAT, %#o) failed",
> -			 TESTFILE, FILE_MODE);
> -	}
> -
> -	SAFE_CLOSE(cleanup, fd);
> +	SAFE_TOUCH(tpaths[0], FILE_MODE, NULL);
> +	SAFE_MKDIR(tpaths[1], DIR_MODE);
>   }
>
> -/*
> - * void
> - * cleanup() - performs all ONE TIME cleanup for this test at
> - *		completion or premature exit.
> - *  Delete the testfile and temporary directory created in setup().
> - */
> -void cleanup(void)
> -{
> -
> -	tst_rmdir();
> -
> -}
> +static struct tst_test test = {
> +	.needs_tmpdir = 1,
> +	.tcnt = ARRAY_SIZE(tpaths),
> +	.test = verify_chmod,
> +	.setup = setup,
> +};
> diff --git a/testcases/kernel/syscalls/chmod/chmod04.c b/testcases/kernel/syscalls/chmod/chmod04.c
> deleted file mode 100644
> index cbc13cf61..000000000
> --- a/testcases/kernel/syscalls/chmod/chmod04.c
> +++ /dev/null
> @@ -1,191 +0,0 @@
> -/*
> - *
> - *   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
> - */
> -
> -/*
> - * Test Name: chmod04
> - *
> - * Test Description:
> - *  Verify that, chmod(2) will succeed to change the mode of a directory
> - *  and set the sticky bit on it if invoked by non-root (uid != 0) process
> - *  with the following constraints,
> - *	- the process is the owner of the directory.
> - *	- the effective group ID or one of the supplementary group ID's of the
> - *	  process is equal to the group ID of the directory.
> - *
> - * Expected Result:
> - *  chmod() should return value 0 on success and succeeds to set sticky bit
> - *  on the specified directory.
> - *
> - * Algorithm:
> - *  Setup:
> - *   Setup signal handling.
> - *   Create temporary directory.
> - *   Pause for SIGUSR1 if option specified.
> - *
> - *  Test:
> - *   Loop if the proper options are given.
> - *   Execute system call
> - *   Check return code, if system call failed (return=-1)
> - *   	Log the errno and Issue a FAIL message.
> - *   Otherwise,
> - *   	Verify the Functionality of system call
> - *      if successful,
> - *      	Issue Functionality-Pass message.
> - *      Otherwise,
> - *		Issue Functionality-Fail message.
> - *  Cleanup:
> - *   Print errno log and/or timing stats if options given
> - *   Delete the temporary directory created.
> - *
> - * Usage:<for command-line>
> - *  chmod04 [-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:
> - *  This test should be run by 'non-super-user' only.
> - *
> - */
> -
> -#include<stdio.h>
> -#include<sys/types.h>
> -#include<sys/stat.h>
> -#include<fcntl.h>
> -#include<errno.h>
> -#include<string.h>
> -#include<signal.h>
> -#include<pwd.h>
> -
> -#include "test.h"
> -#include "safe_macros.h"
> -
> -#define DIR_MODE 	S_IRWXU | S_IRWXG | S_IRWXO
> -#define PERMS		01777	/*
> -				 * Mode permissions of test directory with
> -				 * sticky bit set.
> -				 */
> -#define TESTDIR		"testdir_4"
> -
> -char *TCID = "chmod04";
> -int TST_TOTAL = 1;
> -char nobody_uid[] = "nobody";
> -struct passwd *ltpuser;
> -
> -void setup();
> -void cleanup();
> -
> -int main(int ac, char **av)
> -{
> -	struct stat stat_buf;	/* stat struct. */
> -	int lc;
> -	mode_t dir_mode;	/* mode permissions set on testdirectory */
> -
> -	tst_parse_opts(ac, av, NULL, NULL);
> -
> -	setup();
> -
> -	for (lc = 0; TEST_LOOPING(lc); lc++) {
> -
> -		tst_count = 0;
> -
> -		/*
> -		 * Call chmod(2) with mode argument to
> -		 * set sticky bit on TESTDIR
> -		 */
> -		TEST(chmod(TESTDIR, PERMS));
> -
> -		if (TEST_RETURN == -1) {
> -			tst_resm(TFAIL | TTERRNO, "chmod(%s, %#o) failed",
> -				 TESTDIR, PERMS);
> -			continue;
> -		}
> -
> -		/*
> -		 * Get the file information using
> -		 * stat(2).
> -		 */
> -		if (stat(TESTDIR,&stat_buf)<  0) {
> -			tst_brkm(TFAIL, cleanup,
> -				 "stat(2) of %s failed, errno:%d",
> -				 TESTDIR, TEST_ERRNO);
> -		}
> -		dir_mode = stat_buf.st_mode;
> -
> -		/* Verify STICKY BIT SET on directory */
> -		if ((dir_mode&  PERMS) == PERMS) {
> -			tst_resm(TPASS, "Functionality of "
> -				 "chmod(%s, %#o) successful",
> -				 TESTDIR, PERMS);
> -		} else {
> -			tst_resm(TFAIL, "%s: Incorrect modes 0%03o, "
> -				 "Expected 0%03o",
> -				 TESTDIR, dir_mode, PERMS);
> -		}
> -	}
> -
> -	cleanup();
> -	tst_exit();
> -}
> -
> -/*
> - * void
> - * setup() - performs all ONE TIME setup for this test.
> - *  Create a temporary directory and cd to it.
> - *  Create another test directory under temporary directory.
> - */
> -void setup(void)
> -{
> -
> -	tst_sig(NOFORK, DEF_HANDLER, cleanup);
> -
> -	tst_require_root();
> -	ltpuser = getpwnam(nobody_uid);
> -	if (setuid(ltpuser->pw_uid) == -1)
> -		tst_resm(TINFO | TERRNO, "setuid(%u) failed", ltpuser->pw_uid);
> -
> -	TEST_PAUSE;
> -
> -	tst_tmpdir();
> -
> -	/*
> -	 * Create a test directory under temporary directory with specified
> -	 * mode permissios.
> -	 */
> -	SAFE_MKDIR(cleanup, TESTDIR, DIR_MODE);
> -}
> -
> -/*
> - * void
> - * cleanup() - performs all ONE TIME cleanup for this test at
> - *		completion or premature exit.
> - *  Remove the test directory and temporary directory created in setup().
> - */
> -void cleanup(void)
> -{
> -
> -	tst_rmdir();
> -
> -}

[LTP] [PATCH 2/2] syscalls/chmod0{3, 4}: Cleanup and Convert to the new API.

[yangx.jy]

On 2021/3/29 10:57, yangx.jy@fujitsu.com wrote:
> Hi Ruan,
>
> After looking into the chmod03 and chmod04, I wonder if we can also
> merge chmod03 and chmod04 into chmod01?
> Because of two reasons:
> 1) All of them just set mode by chmod() and check mode by stat().
> 2) Without needs_root =1, we can run them with any users(root or no-root).
Hi Ruan,

In addition:
1) I think we can merge chmod07 into chmod01 as well.
2) You can add a new test to verify the behavior of sticky bit on a 
directory, see the chmod(1)'s manpage.

Best Regards,
Xiao Yang
> Best Regards,
> Xiao Yang
> On 2021/3/12 14:57, Shiyang Ruan wrote:
>> chmod03 and chmod04 test on file and directory with same logic, so
>> combine them together.
>>
>> Signed-off-by: Shiyang Ruan<ruansy.fnst@fujitsu.com>
>> ---
>>    runtest/syscalls                           |   1 -
>>    testcases/kernel/syscalls/chmod/.gitignore |   1 -
>>    testcases/kernel/syscalls/chmod/chmod03.c  | 196 ++++-----------------
>>    testcases/kernel/syscalls/chmod/chmod04.c  | 191 --------------------
>>    4 files changed, 36 insertions(+), 353 deletions(-)
>>    delete mode 100644 testcases/kernel/syscalls/chmod/chmod04.c
>>
>> diff --git a/runtest/syscalls b/runtest/syscalls
>> index 6108d5fdb..2bf870709 100644
>> --- a/runtest/syscalls
>> +++ b/runtest/syscalls
>> @@ -62,7 +62,6 @@ chdir04 chdir04
>>    chmod01 chmod01
>>    chmod01A symlink01 -T chmod01
>>    chmod03 chmod03
>> -chmod04 chmod04
>>    chmod05 chmod05
>>    chmod06 chmod06
>>    chmod07 chmod07
>> diff --git a/testcases/kernel/syscalls/chmod/.gitignore b/testcases/kernel/syscalls/chmod/.gitignore
>> index 072fa5b80..27ddfce16 100644
>> --- a/testcases/kernel/syscalls/chmod/.gitignore
>> +++ b/testcases/kernel/syscalls/chmod/.gitignore
>> @@ -1,6 +1,5 @@
>>    /chmod01
>>    /chmod03
>> -/chmod04
>>    /chmod05
>>    /chmod06
>>    /chmod07
>> diff --git a/testcases/kernel/syscalls/chmod/chmod03.c b/testcases/kernel/syscalls/chmod/chmod03.c
>> index f53e437e4..e451ca65a 100644
>> --- a/testcases/kernel/syscalls/chmod/chmod03.c
>> +++ b/testcases/kernel/syscalls/chmod/chmod03.c
>> @@ -1,183 +1,59 @@
>> +// 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
>>     */
>>
>> -/*
>> - * Test Name: chmod03
>> +/*\
>> + * [DESCRIPTION]
>>     *
>> - * Test Description:
>> - *  Verify that, chmod(2) will succeed to change the mode of a file
>> - *  and set the sticky bit on it if invoked by non-root (uid != 0)
>> - *  process with the following constraints,
>> - *	- the process is the owner of the file.
>> + * Verify that, chmod(2) will succeed to change the mode of a file/directory
>> + * and set the sticky bit on it if invoked by non-root (uid != 0) process with
>> + * the following constraints:
>> + *	- the process is the owner of the directory.
>>     *	- the effective group ID or one of the supplementary group ID's of the
>> - *	  process is equal to the group ID of the file.
>> - *
>> - * Expected Result:
>> - *  chmod() should return value 0 on success and succeeds to change
>> - *  the mode of specified file with sticky bit set on it.
>> - *
>> - * Algorithm:
>> - *  Setup:
>> - *   Setup signal handling.
>> - *   Create temporary directory.
>> - *   Pause for SIGUSR1 if option specified.
>> - *
>> - *  Test:
>> - *   Loop if the proper options are given.
>> - *   Execute system call
>> - *   Check return code, if system call failed (return=-1)
>> - *   	Log the errno and Issue a FAIL message.
>> - *   Otherwise,
>> - *   	Verify the Functionality of system call
>> - *      if successful,
>> - *      	Issue Functionality-Pass message.
>> - *      Otherwise,
>> - *		Issue Functionality-Fail message.
>> - *  Cleanup:
>> - *   Print errno log and/or timing stats if options given
>> - *   Delete the temporary directory created.
>> - *
>> - * Usage:<for command-line>
>> - *  chmod03 [-c n] [-e] [-f] [-i n] [-I x] [-p x] [-t]
>> - *     where,  -c n : Run n copies concurrently.
>> - *             -e   : Turn on errno logging.
>> - *             -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:
>> - *  This test should be run by 'non-super-user' only.
>> - *
>> + *	  process is equal to the group ID of the directory.
>>     */
>>
>> -#include<stdio.h>
>> -#include<sys/types.h>
>> -#include<sys/stat.h>
>> -#include<fcntl.h>
>>    #include<errno.h>
>> -#include<string.h>
>> -#include<signal.h>
>> -#include<pwd.h>
>> -
>> -#include "test.h"
>> -#include "safe_macros.h"
>> -
>> -#define FILE_MODE       S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH
>> -#define PERMS		01777	/*
>> -				 * Mode permissions of test file with sticky
>> -				 * bit set.
>> -				 */
>> -#define TESTFILE	"testfile"
>> +#include<sys/stat.h>
>> +#include "tst_test.h"
>>
>> -char *TCID = "chmod03";
>> -int TST_TOTAL = 1;
>> -char nobody_uid[] = "nobody";
>> -struct passwd *ltpuser;
>> +#define FILE_MODE	(S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)
>> +#define DIR_MODE	(S_IRWXU | S_IRWXG | S_IRWXO)
>> +/* Mode permissions of test directory with sticky bit set. */
>> +#define PERMS		01777
>>
>> -void setup();			/* Main setup function for the test */
>> -void cleanup();			/* Main cleanup function for the test */
>> +static char *tpaths[] = { "testfile", "testdir" };
>>
>> -int main(int ac, char **av)
>> +static void verify_chmod(unsigned int i)
>>    {
>>    	struct stat stat_buf;
>> -	int lc;
>> -	mode_t file_mode;
>> -
>> -	tst_parse_opts(ac, av, NULL, NULL);
>> -
>> -	setup();
>> +	char *tpath = tpaths[i];
>>
>> -	for (lc = 0; TEST_LOOPING(lc); lc++) {
>> +	TST_EXP_PASS_SILENT(chmod(tpath, PERMS), "chmod(%s, %#o)", tpath, PERMS);
>>
>> -		tst_count = 0;
>> +	if (stat(tpath,&stat_buf)<   0)
>> +		tst_brk(TFAIL | TERRNO, "stat(%s) failed", tpath);
>>
>> -		TEST(chmod(TESTFILE, PERMS));
>> -
>> -		if (TEST_RETURN == -1) {
>> -			tst_resm(TFAIL | TTERRNO, "chmod(%s, %#o) failed",
>> -				 TESTFILE, PERMS);
>> -			continue;
>> -		}
>> -		if (stat(TESTFILE,&stat_buf)<   0) {
>> -			tst_brkm(TFAIL | TERRNO, cleanup,
>> -				 "stat(%s) failed", TESTFILE);
>> -		}
>> -		file_mode = stat_buf.st_mode;
>> -
>> -		/* Verify STICKY BIT set on testfile */
>> -		if ((file_mode&   PERMS) != PERMS) {
>> -			tst_resm(TFAIL, "%s: Incorrect modes 0%3o, "
>> -				 "Expected 0777", TESTFILE, file_mode);
>> -		} else {
>> -			tst_resm(TPASS, "Functionality of "
>> -				 "chmod(%s, %#o) successful",
>> -				 TESTFILE, PERMS);
>> -		}
>> +	/* Verify STICKY BIT SET on file/directory */
>> +	if ((stat_buf.st_mode&   PERMS) == PERMS) {
>> +		tst_res(TPASS, "Functionality of chmod(%s, %#o) successful",
>> +			tpath, PERMS);
>> +	} else {
>> +		tst_res(TFAIL, "%s: Incorrect modes 0%03o, Expected 0%03o",
>> +			tpath, stat_buf.st_mode, PERMS);
>>    	}
>> -
>> -	cleanup();
>> -	tst_exit();
>>    }
>>
>>    void setup(void)
>>    {
>> -	int fd;
>> -
>> -	tst_sig(NOFORK, DEF_HANDLER, cleanup);
>> -
>> -	tst_require_root();
>> -	ltpuser = getpwnam(nobody_uid);
>> -	if (ltpuser == NULL)
>> -		tst_brkm(TBROK | TERRNO, NULL, "getpwnam failed");
>> -	SAFE_SETUID(NULL, ltpuser->pw_uid);
>> -
>> -	TEST_PAUSE;
>> -
>> -	tst_tmpdir();
>> -
>> -	/*
>> -	 * Create a test file under temporary directory with specified
>> -	 * mode permissios and set the ownership of the test file to the
>> -	 * uid/gid of guest user.
>> -	 */
>> -	if ((fd = open(TESTFILE, O_RDWR | O_CREAT, FILE_MODE)) == -1) {
>> -		tst_brkm(TBROK | TERRNO, cleanup,
>> -			 "open(%s, O_RDWR|O_CREAT, %#o) failed",
>> -			 TESTFILE, FILE_MODE);
>> -	}
>> -
>> -	SAFE_CLOSE(cleanup, fd);
>> +	SAFE_TOUCH(tpaths[0], FILE_MODE, NULL);
>> +	SAFE_MKDIR(tpaths[1], DIR_MODE);
>>    }
>>
>> -/*
>> - * void
>> - * cleanup() - performs all ONE TIME cleanup for this test at
>> - *		completion or premature exit.
>> - *  Delete the testfile and temporary directory created in setup().
>> - */
>> -void cleanup(void)
>> -{
>> -
>> -	tst_rmdir();
>> -
>> -}
>> +static struct tst_test test = {
>> +	.needs_tmpdir = 1,
>> +	.tcnt = ARRAY_SIZE(tpaths),
>> +	.test = verify_chmod,
>> +	.setup = setup,
>> +};
>> diff --git a/testcases/kernel/syscalls/chmod/chmod04.c b/testcases/kernel/syscalls/chmod/chmod04.c
>> deleted file mode 100644
>> index cbc13cf61..000000000
>> --- a/testcases/kernel/syscalls/chmod/chmod04.c
>> +++ /dev/null
>> @@ -1,191 +0,0 @@
>> -/*
>> - *
>> - *   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
>> - */
>> -
>> -/*
>> - * Test Name: chmod04
>> - *
>> - * Test Description:
>> - *  Verify that, chmod(2) will succeed to change the mode of a directory
>> - *  and set the sticky bit on it if invoked by non-root (uid != 0) process
>> - *  with the following constraints,
>> - *	- the process is the owner of the directory.
>> - *	- the effective group ID or one of the supplementary group ID's of the
>> - *	  process is equal to the group ID of the directory.
>> - *
>> - * Expected Result:
>> - *  chmod() should return value 0 on success and succeeds to set sticky bit
>> - *  on the specified directory.
>> - *
>> - * Algorithm:
>> - *  Setup:
>> - *   Setup signal handling.
>> - *   Create temporary directory.
>> - *   Pause for SIGUSR1 if option specified.
>> - *
>> - *  Test:
>> - *   Loop if the proper options are given.
>> - *   Execute system call
>> - *   Check return code, if system call failed (return=-1)
>> - *   	Log the errno and Issue a FAIL message.
>> - *   Otherwise,
>> - *   	Verify the Functionality of system call
>> - *      if successful,
>> - *      	Issue Functionality-Pass message.
>> - *      Otherwise,
>> - *		Issue Functionality-Fail message.
>> - *  Cleanup:
>> - *   Print errno log and/or timing stats if options given
>> - *   Delete the temporary directory created.
>> - *
>> - * Usage:<for command-line>
>> - *  chmod04 [-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:
>> - *  This test should be run by 'non-super-user' only.
>> - *
>> - */
>> -
>> -#include<stdio.h>
>> -#include<sys/types.h>
>> -#include<sys/stat.h>
>> -#include<fcntl.h>
>> -#include<errno.h>
>> -#include<string.h>
>> -#include<signal.h>
>> -#include<pwd.h>
>> -
>> -#include "test.h"
>> -#include "safe_macros.h"
>> -
>> -#define DIR_MODE 	S_IRWXU | S_IRWXG | S_IRWXO
>> -#define PERMS		01777	/*
>> -				 * Mode permissions of test directory with
>> -				 * sticky bit set.
>> -				 */
>> -#define TESTDIR		"testdir_4"
>> -
>> -char *TCID = "chmod04";
>> -int TST_TOTAL = 1;
>> -char nobody_uid[] = "nobody";
>> -struct passwd *ltpuser;
>> -
>> -void setup();
>> -void cleanup();
>> -
>> -int main(int ac, char **av)
>> -{
>> -	struct stat stat_buf;	/* stat struct. */
>> -	int lc;
>> -	mode_t dir_mode;	/* mode permissions set on testdirectory */
>> -
>> -	tst_parse_opts(ac, av, NULL, NULL);
>> -
>> -	setup();
>> -
>> -	for (lc = 0; TEST_LOOPING(lc); lc++) {
>> -
>> -		tst_count = 0;
>> -
>> -		/*
>> -		 * Call chmod(2) with mode argument to
>> -		 * set sticky bit on TESTDIR
>> -		 */
>> -		TEST(chmod(TESTDIR, PERMS));
>> -
>> -		if (TEST_RETURN == -1) {
>> -			tst_resm(TFAIL | TTERRNO, "chmod(%s, %#o) failed",
>> -				 TESTDIR, PERMS);
>> -			continue;
>> -		}
>> -
>> -		/*
>> -		 * Get the file information using
>> -		 * stat(2).
>> -		 */
>> -		if (stat(TESTDIR,&stat_buf)<   0) {
>> -			tst_brkm(TFAIL, cleanup,
>> -				 "stat(2) of %s failed, errno:%d",
>> -				 TESTDIR, TEST_ERRNO);
>> -		}
>> -		dir_mode = stat_buf.st_mode;
>> -
>> -		/* Verify STICKY BIT SET on directory */
>> -		if ((dir_mode&   PERMS) == PERMS) {
>> -			tst_resm(TPASS, "Functionality of "
>> -				 "chmod(%s, %#o) successful",
>> -				 TESTDIR, PERMS);
>> -		} else {
>> -			tst_resm(TFAIL, "%s: Incorrect modes 0%03o, "
>> -				 "Expected 0%03o",
>> -				 TESTDIR, dir_mode, PERMS);
>> -		}
>> -	}
>> -
>> -	cleanup();
>> -	tst_exit();
>> -}
>> -
>> -/*
>> - * void
>> - * setup() - performs all ONE TIME setup for this test.
>> - *  Create a temporary directory and cd to it.
>> - *  Create another test directory under temporary directory.
>> - */
>> -void setup(void)
>> -{
>> -
>> -	tst_sig(NOFORK, DEF_HANDLER, cleanup);
>> -
>> -	tst_require_root();
>> -	ltpuser = getpwnam(nobody_uid);
>> -	if (setuid(ltpuser->pw_uid) == -1)
>> -		tst_resm(TINFO | TERRNO, "setuid(%u) failed", ltpuser->pw_uid);
>> -
>> -	TEST_PAUSE;
>> -
>> -	tst_tmpdir();
>> -
>> -	/*
>> -	 * Create a test directory under temporary directory with specified
>> -	 * mode permissios.
>> -	 */
>> -	SAFE_MKDIR(cleanup, TESTDIR, DIR_MODE);
>> -}
>> -
>> -/*
>> - * void
>> - * cleanup() - performs all ONE TIME cleanup for this test at
>> - *		completion or premature exit.
>> - *  Remove the test directory and temporary directory created in setup().
>> - */
>> -void cleanup(void)
>> -{
>> -
>> -	tst_rmdir();
>> -
>> -}