[LTP] [PATCH v2 1/2] Refactor getegid01 using new LTP API

[Andrea Cervesato]

From: Andrea Cervesato <andrea.cervesato@suse.com>

This new version also verifies that getegid() effectively returns the
right effective group ID by looking at /proc/self/status information.

Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.com>
---
 testcases/kernel/syscalls/getegid/getegid01.c | 95 ++++---------------
 1 file changed, 20 insertions(+), 75 deletions(-)

diff --git a/testcases/kernel/syscalls/getegid/getegid01.c b/testcases/kernel/syscalls/getegid/getegid01.c
index 271fbb6b6..46cdc680b 100644
--- a/testcases/kernel/syscalls/getegid/getegid01.c
+++ b/testcases/kernel/syscalls/getegid/getegid01.c
@@ -1,87 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * 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/
- *
+ *   William Roske, Dave Fenner
+ * Copyright (C) 2023 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
  */
 
-/*
- *    AUTHOR		: William Roske
- *    CO-PILOT		: Dave Fenner
+/*\
+ * [Description]
+ *
+ * This test checks if getegid() returns the effective group id.
  */
 
-#include <sys/types.h>
-#include <errno.h>
-#include <string.h>
-#include <signal.h>
-
-#include "test.h"
-#include "compat_16.h"
-
-static void setup();
-static void cleanup();
+#include "tst_test.h"
+#include "compat_tst_16.h"
 
-TCID_DEFINE(getegid01);
-int TST_TOTAL = 1;
-
-int main(int ac, char **av)
+static void run(void)
 {
-	int lc;
-
-	tst_parse_opts(ac, av, NULL, NULL);
-
-	setup();
-
-	for (lc = 0; TEST_LOOPING(lc); lc++) {
-
-		tst_count = 0;
-
-		TEST(GETEGID(cleanup));
+	gid_t gid, st_egid;
 
-		if (TEST_RETURN == -1) {
-			tst_resm(TFAIL | TTERRNO, "getegid failed");
-			continue;	/* next loop for MTKERNEL */
-		}
+	SAFE_FILE_LINES_SCANF("/proc/self/status", "Gid: %*d %d", &st_egid);
+	gid = getegid();
 
-		tst_resm(TPASS, "getegid returned %ld", TEST_RETURN);
-	}
-
-	cleanup();
-	tst_exit();
-}
-
-static void setup(void)
-{
-	tst_sig(NOFORK, DEF_HANDLER, cleanup);
-	TEST_PAUSE;
+	if (GID_SIZE_CHECK(st_egid))
+		TST_EXP_EQ_LI(gid, st_egid);
+	else
+		tst_res(TPASS, "getegid() passed");
 }
 
-static void cleanup(void)
-{
-}
+static struct tst_test test = {
+	.test_all = run,
+};
-- 
2.35.3