[LTP] [PATCH] statfs03: Rewrite using new LTP API

[Avinesh Kumar]

Signed-off-by: Avinesh Kumar <akumar@suse.de>
---
 testcases/kernel/syscalls/statfs/statfs03.c | 173 +++-----------------
 1 file changed, 27 insertions(+), 146 deletions(-)

diff --git a/testcases/kernel/syscalls/statfs/statfs03.c b/testcases/kernel/syscalls/statfs/statfs03.c
index 32aaf830e..2afdbbf04 100644
--- a/testcases/kernel/syscalls/statfs/statfs03.c
+++ b/testcases/kernel/syscalls/statfs/statfs03.c
@@ -1,165 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
 /*
- *
  *   Copyright (C) Bull S.A. 2001
  *   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
+ *		05/2002 Ported by Jacky Malcles
+ *   Copyright (c) 2022 SUSE LLC Avinesh Kumar <avinesh.kumar@suse.com>
  */
 
-/*
- * NAME
- *	statfs03.c
- *
- * DESCRIPTION
- *	Testcase to check that statfs(2) sets errno to EACCES when
- *	search permission is denied for a component of the path prefix of path.
- *
- * ALGORITHM
- *	 Use a component of the pathname, where search permission
- *	 is denied for a component of the path prefix of path.
- *
- * USAGE:  <for command-line>
- *  statfs03 [-c n] [-e] [-i n] [-I x] [-P x] [-t]
- *     where,  -c n : Run n copies concurrently.
- *             -e   : Turn on errno logging.
- *             -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
- *	05/2002 Ported by Jacky Malcles
- *
- * RESTRICTIONS
- *	NONE
+/*\
+ * [Description]
  *
+ * Verify that statfs(2) fails with errno EACCES when search permission
+ * is denied for a component of the path prefix of path.
  */
-#include <sys/types.h>
-#include <sys/statfs.h>
-#include <sys/stat.h>
-#include <sys/vfs.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <stdio.h>
-#include "test.h"
-#include "safe_macros.h"
-#include <pwd.h>
-
-char *TCID = "statfs03";
-int TST_TOTAL = 1;
-int fileHandle = 0;
 
-char nobody_uid[] = "nobody";
-struct passwd *ltpuser;
-
-char fname[30] = "testfile";
-char path[50];
-struct statfs buf;
+#include <pwd.h>
+#include "tst_test.h"
 
-void setup(void);
-void cleanup(void);
+#define TEMP_DIR "testdir"
+#define TEMP_DIR2 TEMP_DIR"/subdir"
 
-int main(int ac, char **av)
+static void setup(void)
 {
-	int lc;
-
-	tst_parse_opts(ac, av, NULL, NULL);
-
-	setup();
-
-	for (lc = 0; TEST_LOOPING(lc); lc++) {
-
-		tst_count = 0;
+	struct passwd *ltpuser;
 
-		TEST(statfs(path, &buf));
+	SAFE_MKDIR(TEMP_DIR, 0444);
+	SAFE_MKDIR(TEMP_DIR2, 0444);
 
-		if (TEST_RETURN != -1) {
-			tst_resm(TFAIL, "call succeeded unexpectedly");
-
-		} else {
-
-			if (TEST_ERRNO == EACCES) {
-				tst_resm(TPASS, "expected failure - "
-					 "errno = %d : %s", TEST_ERRNO,
-					 strerror(TEST_ERRNO));
-			} else {
-				tst_resm(TFAIL, "unexpected error - %d : %s - "
-					 "expected %d", TEST_ERRNO,
-					 strerror(TEST_ERRNO), EACCES);
-			}
-		}
-	}
-
-	cleanup();
-	tst_exit();
+	ltpuser = SAFE_GETPWNAM("nobody");
+	SAFE_SETEUID(ltpuser->pw_uid);
 }
 
-/*
- * setup() - performs all ONE TIME setup for this test.
- */
-void setup(void)
+static void run(void)
 {
+	struct statfs buf;
 
-	tst_require_root();
-
-	tst_sig(NOFORK, DEF_HANDLER, cleanup);
-
-	TEST_PAUSE;
-
-	/* make a temporary directory and cd to it */
-	tst_tmpdir();
-	SAFE_CHMOD(cleanup, tst_get_tmpdir(), S_IRWXU);
-
-	/* create a test file */
-	sprintf(fname, "%s.%d", fname, getpid());
-	if (mkdir(fname, 0444) == -1) {
-		tst_resm(TFAIL, "creat(2) FAILED to creat temp file");
-	} else {
-		sprintf(path, "%s/%s", fname, fname);
-		if ((fileHandle = creat(path, 0444)) == -1)
-			tst_brkm(TFAIL | TERRNO, cleanup, "creat failed");
-	}
-
-	ltpuser = getpwnam(nobody_uid);
-	if (ltpuser == NULL)
-		tst_brkm(TBROK | TERRNO, cleanup, "getpwnam failed");
-	if (seteuid(ltpuser->pw_uid) == -1) {
-		tst_resm(TINFO | TERRNO, "seteuid failed to "
-			 "to set the effective uid to %d", ltpuser->pw_uid);
-	}
-
+	TST_EXP_FAIL(statfs(TEMP_DIR2, &buf), EACCES);
 }
 
-/*
- * cleanup() - performs all ONE TIME cleanup for this test at
- *	       completion or premature exit.
- */
-void cleanup(void)
-{
-	/* reset the process ID to the saved ID (root) */
-	if (setuid(0) == -1) {
-		tst_resm(TINFO, "setuid(0) failed");
-	}
-
-	/*
-	 * print timing stats if that option was specified.
-	 * print errno log if that option was specified.
-	 */
-	close(fileHandle);
-
-	/* delete the test directory created in setup() */
-	tst_rmdir();
-
-}
+static struct tst_test test = {
+	.setup = setup,
+	.test_all = run,
+	.needs_tmpdir = 1,
+	.needs_root = 1
+};
-- 
2.38.1