syscalls/mprotect: Cleanup.

Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
diff --git a/testcases/kernel/syscalls/mprotect/mprotect01.c b/testcases/kernel/syscalls/mprotect/mprotect01.c
index e635fed..b781968 100644
--- a/testcases/kernel/syscalls/mprotect/mprotect01.c
+++ b/testcases/kernel/syscalls/mprotect/mprotect01.c
@@ -1,26 +1,22 @@
 /*
+ * Copyright (c) International Business Machines  Corp., 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 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.
  *
- *   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
+ * 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
  */
 
 /*
- * NAME
- *	mprotect01.c
- *
  * DESCRIPTION
  *	Testcase to check the error conditions for mprotect(2)
  *
@@ -36,28 +32,16 @@
  *		Try to set write permission (PROT_WRITE) using mprotect(2).
  *		Check that error is set to EACCES.
  *
- * USAGE:  <for command-line>
- *  mprotect01 [-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
  *	07/2001 Ported by Wayne Boyer
  *	03/2002 Paul Larson: case 1 should expect ENOMEM not EFAULT
- *
- * RESTRICTIONS
- *	None
  */
 
 #include <fcntl.h>
 #include <errno.h>
 #include <sys/mman.h>
 #include <stdlib.h>
-#include <limits.h>		/* for PAGESIZE */
+#include <limits.h>
 #include <unistd.h>
 #include "test.h"
 #include "usctest.h"
@@ -66,19 +50,19 @@
 #define PAGESIZE 4096
 #endif
 
-void cleanup(void);
-void setup(void);
-void setup1(void);
-void setup2(void);
-void setup3(void);
+static void cleanup(void);
+static void setup(void);
+static void setup1(void);
+static void setup2(void);
+static void setup3(void);
 
 char *TCID = "mprotect01";
 int TST_TOTAL = 3;
 
-void *addr1, *addr2, *addr3;
-int fd;
+static void *addr1, *addr2, *addr3;
+static int fd;
 
-int exp_enos[] = { ENOMEM, EINVAL, EACCES, 0 };
+static int exp_enos[] = { ENOMEM, EINVAL, EACCES, 0 };
 
 struct test_case_t {
 	void **addr;
@@ -89,25 +73,21 @@
 } TC[] = {
 #ifdef __ia64__
 	/* Check for ENOMEM passing memory that cannot be accessed. */
-	{
-	&addr1, 1024, PROT_READ, ENOMEM, setup1},
+	{&addr1, 1024, PROT_READ, ENOMEM, setup1},
 #else
 	/* Check for ENOMEM passing memory that cannot be accessed. */
-	{
-	&addr1, 1024, PROT_READ, ENOMEM, NULL},
+	{&addr1, 1024, PROT_READ, ENOMEM, NULL},
 #endif
-	    /*
-	     * Check for EINVAL by passing a pointer which is not a
-	     * multiple of PAGESIZE.
-	     */
-	{
-	&addr2, 1024, PROT_READ, EINVAL, setup2},
-	    /*
-	     * Check for EACCES by trying to mark a section of memory
-	     * which has been mmap'ed as read-only, as PROT_WRITE
-	     */
-	{
-	&addr3, PAGESIZE, PROT_WRITE, EACCES, setup3}
+	/*
+	 * Check for EINVAL by passing a pointer which is not a
+	 * multiple of PAGESIZE.
+	 */
+	{&addr2, 1024, PROT_READ, EINVAL, setup2},
+	/*
+	 * Check for EACCES by trying to mark a section of memory
+	 * which has been mmap'ed as read-only, as PROT_WRITE
+	 */
+	{&addr3, PAGESIZE, PROT_WRITE, EACCES, setup3}
 };
 
 int main(int ac, char **av)
@@ -116,28 +96,21 @@
 	int i;
 	char *msg;
 
-	if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) {
+	if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL)
 		tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
-	}
 
-	setup();		/* global setup */
+	setup();
 
 	/* set up the expected errnos */
 	TEST_EXP_ENOS(exp_enos);
 
-	/* The following loop checks looping state if -i option given */
 	for (lc = 0; TEST_LOOPING(lc); lc++) {
-
-		/* reset tst_count in case we are looping */
 		tst_count = 0;
 
-		/* loop through the test cases */
 		for (i = 0; i < TST_TOTAL; i++) {
 
-			/* perform test specific setup */
-			if (TC[i].setupfunc != NULL) {
+			if (TC[i].setupfunc != NULL)
 				TC[i].setupfunc();
-			}
 
 			TEST(mprotect(*(TC[i].addr), TC[i].len, TC[i].prot));
 
@@ -164,67 +137,43 @@
 	tst_exit();
 }
 
-/*
- * setup1() - sets up conditions for the first test
- */
-void setup1()
+static void setup1(void)
 {
 	TC[0].len = getpagesize() + 1;
 }
 
-/*
- * setup2() - sets up conditions for the second test
- */
-void setup2()
+static void setup2(void)
 {
+	addr2 = malloc(PAGESIZE);
 
-	addr2 = (char *)malloc(PAGESIZE);
-	if (addr2 == NULL) {
+	if (addr2 == NULL)
 		tst_brkm(TINFO, cleanup, "malloc failed");
-	}
+	
 	addr2++;		/* Ensure addr2 is not page aligned */
 }
 
-/*
- * setup3() - sets up conditions for the third test
- */
-void setup3()
+static void setup3(void)
 {
 	fd = open("/etc/passwd", O_RDONLY);
-	if (fd < 0) {
+	if (fd < 0)
 		tst_brkm(TBROK, cleanup, "open failed");
-	}
 
 	/*
 	 * mmap the PAGESIZE bytes as read only.
 	 */
 	addr3 = mmap(0, PAGESIZE, PROT_READ, MAP_SHARED, fd, 0);
-	if (addr3 < 0) {
+	if (addr3 < 0)
 		tst_brkm(TBROK, cleanup, "mmap failed");
-	}
 }
 
-/*
- * setup() - performs all ONE TIME setup for this test
- */
-void setup()
+static void setup(void)
 {
-
 	tst_sig(FORK, DEF_HANDLER, cleanup);
 
 	TEST_PAUSE;
 }
 
-/*
- * cleanup() - performs all the ONE TIME cleanup for this test at completion
- * or premature exit.
- */
-void cleanup()
+static void cleanup(void)
 {
-	/*
-	 * print timing status if that option was specified.
-	 * print errno log if that option was specified
-	 */
 	TEST_CLEANUP;
-
 }
diff --git a/testcases/kernel/syscalls/mprotect/mprotect02.c b/testcases/kernel/syscalls/mprotect/mprotect02.c
index 05f6bfe..afaa5b8 100644
--- a/testcases/kernel/syscalls/mprotect/mprotect02.c
+++ b/testcases/kernel/syscalls/mprotect/mprotect02.c
@@ -1,26 +1,22 @@
 /*
+ * Copyright (c) International Business Machines  Corp., 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 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.
  *
- *   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
+ * 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
  */
 
 /*
- * NAME
- *	mprotect02.c
- *
  * DESCRIPTION
  *	Testcase to check the mprotect(2) system call.
  *
@@ -32,21 +28,9 @@
  *	Again try to write into the mapped region.
  *	Verify that no SIGSEGV is generated.
  *
- * USAGE:  <for command-line>
- *  mprotect02 [-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
  *	05/2002 changed over to use tst_sig instead of sigaction
- *
- * RESTRICTIONS
- *	None
  */
 
 #include <sys/mman.h>
@@ -66,11 +50,11 @@
 
 char *TCID = "mprotect02";
 int TST_TOTAL = 1;
-int fd, status;
-char file1[BUFSIZ];
+static int fd, status;
+static char file1[BUFSIZ];
 
-char *addr = MAP_FAILED;
-char buf[] = "abcdefghijklmnopqrstuvwxyz";
+static char *addr = MAP_FAILED;
+static char buf[] = "abcdefghijklmnopqrstuvwxyz";
 
 int main(int ac, char **av)
 {
@@ -113,7 +97,7 @@
 			tst_brkm(TBROK | TERRNO, cleanup, "fork #1 failed");
 
 		if (pid == 0) {
-			(void)memcpy(addr, buf, strlen(buf));
+			memcpy(addr, buf, strlen(buf));
 			exit(255);
 		}
 
@@ -147,7 +131,7 @@
 						 "fork #2 failed");
 
 				if (pid == 0) {
-					(void)memcpy(addr, buf, strlen(buf));
+					memcpy(addr, buf, strlen(buf));
 					exit(0);
 				}
 
@@ -188,7 +172,7 @@
 	_exit((sig == SIGSEGV) ? 0 : sig);
 }
 
-static void setup()
+static void setup(void)
 {
 	tst_sig(FORK, sighandler, cleanup);
 
@@ -199,7 +183,7 @@
 	sprintf(file1, "mprotect02.tmp.%d", getpid());
 }
 
-static void cleanup()
+static void cleanup(void)
 {
 	TEST_CLEANUP;
 
diff --git a/testcases/kernel/syscalls/mprotect/mprotect03.c b/testcases/kernel/syscalls/mprotect/mprotect03.c
index 524cfe7..49212f3 100644
--- a/testcases/kernel/syscalls/mprotect/mprotect03.c
+++ b/testcases/kernel/syscalls/mprotect/mprotect03.c
@@ -1,20 +1,19 @@
 /*
+ * Copyright (c) International Business Machines  Corp., 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 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.
  *
- *   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
+ * 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
  */
 
 /*
@@ -34,27 +33,15 @@
  *	succeeds only when this sigsegv is generated while attempting to
  *	memcpy() on a shared region with only read permission.
  *
- * USAGE:  <for command-line>
- *  mprotect03 [-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
  *      05/2002 changed over to use tst_sig instead of sigaction
- *
- * RESTRICTIONS
- *	None
  */
 
 #include <errno.h>
 #include <fcntl.h>
 #include <sys/mman.h>
-#include <limits.h>		/* for PAGESIZE */
+#include <limits.h>
 #include <signal.h>
 #include <wait.h>
 #include "test.h"
@@ -65,8 +52,8 @@
 #endif
 #define FAILED 1
 
-void cleanup(void);
-void setup(void);
+static void cleanup(void);
+static void setup(void);
 
 char *TCID = "mprotect03";
 int TST_TOTAL = 1;
@@ -82,32 +69,26 @@
 	int fd, pid;
 	char *buf = "abcdefghijklmnopqrstuvwxyz";
 
-	if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) {
+	if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL)
 		tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
-	}
 
-	setup();		/* global setup */
+	setup();
 
-	/* The following loop checks looping state if -i option given */
 	for (lc = 0; TEST_LOOPING(lc); lc++) {
-
-		/* reset tst_count in case we are looping */
 		tst_count = 0;
 
-		if ((fd = open(file1, O_RDWR | O_CREAT, 0777)) < 0) {	//mode must be specified when O_CREAT is in the flag
+		if ((fd = open(file1, O_RDWR | O_CREAT, 0777)) < 0)
 			tst_brkm(TBROK, cleanup, "open failed");
-		}
 
-		(void)write(fd, buf, strlen(buf));
+		write(fd, buf, strlen(buf));
 
 		/*
 		 * mmap the PAGESIZE bytes as read only.
 		 */
 		addr = mmap(0, strlen(buf), PROT_READ | PROT_WRITE, MAP_SHARED,
 			    fd, 0);
-		if (addr < 0) {
+		if (addr < 0)
 			tst_brkm(TBROK, cleanup, "mmap failed");
-		}
 
 		/*
 		 * Try to change the protection to WRITE.
@@ -120,16 +101,14 @@
 					tst_brkm(TBROK, cleanup, "fork failed");
 				}
 
-				if (pid == 0) {	/* child */
-					(void)memcpy((void *)addr, (void *)buf,
-						     strlen(buf));
+				if (pid == 0) {
+					memcpy(addr, buf, strlen(buf));
 					tst_resm(TINFO, "memcpy() did "
 						 "not generate SIGSEGV");
 					exit(1);
 				}
 
-				/* parent */
-				(void)waitpid(pid, &status, 0);
+				waitpid(pid, &status, 0);
 				if (WEXITSTATUS(status) != 0) {
 					tst_resm(TFAIL, "child returned "
 						 "unexpected status");
@@ -156,12 +135,12 @@
 			tst_brkm(TBROK, cleanup, "unlink failed");
 		}
 	}
+	
 	cleanup();
 	tst_exit();
-
 }
 
-void sighandler(int sig)
+static void sighandler(int sig)
 {
 	if (sig == SIGSEGV) {
 		tst_resm(TINFO, "received signal: SIGSEGV");
@@ -170,32 +149,20 @@
 		tst_brkm(TBROK, 0, "Unexpected signal %d received.", sig);
 }
 
-/*
- * setup() - performs all ONE TIME setup for this test
- */
-void setup()
+static void setup(void)
 {
 	tst_sig(FORK, sighandler, NULL);
 
 	TEST_PAUSE;
 
-	tst_tmpdir();		/* create a temporary directory, cd to it */
+	tst_tmpdir();
 
 	sprintf(file1, "mprotect03.tmp.%d", getpid());
 }
 
-/*
- * cleanup() - performs all the ONE TIME cleanup for this test at completion
- *	       or premature exit.
- */
-void cleanup()
+static void cleanup(void)
 {
-	/*
-	 * print timing status if that option was specified.
-	 * print errno log if that option was specified
-	 */
 	TEST_CLEANUP;
 
 	tst_rmdir();
-
 }