From 7d0efafdb36675c75ac4f7b0b62df36922e0a587 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@computergmbh.de>
Date: Wed, 2 Apr 2008 04:31:52 +0200
Subject: [PATCH] condition: remove casts, add const qualifiers

---
 extensions/libxt_condition.c | 12 ++++--------
 extensions/xt_condition.c    | 15 ++++++---------
 2 files changed, 10 insertions(+), 17 deletions(-)

diff --git a/extensions/libxt_condition.c b/extensions/libxt_condition.c
index f6304c9..f295954 100644
--- a/extensions/libxt_condition.c
+++ b/extensions/libxt_condition.c
@@ -21,8 +21,7 @@ static const struct option condition_opts[] = {
 static int condition_parse(int c, char **argv, int invert, unsigned int *flags,
                            const void *entry, struct xt_entry_match **match)
 {
-	struct condition_info *info =
-	    (struct condition_info *) (*match)->data;
+	struct condition_info *info = (void *)(*match)->data;
 
 	if (c == 'X') {
 		if (*flags)
@@ -55,8 +54,7 @@ static void condition_check(unsigned int flags)
 static void condition_print(const void *ip, const struct xt_entry_match *match,
                             int numeric)
 {
-	const struct condition_info *info =
-	    (const struct condition_info *) match->data;
+	const struct condition_info *info = (const void *)match->data;
 
 	printf("condition %s%s ", (info->invert) ? "!" : "", info->name);
 }
@@ -64,8 +62,7 @@ static void condition_print(const void *ip, const struct xt_entry_match *match,
 
 static void condition_save(const void *ip, const struct xt_entry_match *match)
 {
-	const struct condition_info *info =
-	    (const struct condition_info *) match->data;
+	const struct condition_info *info = (const void *)match->data;
 
 	printf("--condition %s\"%s\" ", (info->invert) ? "! " : "", info->name);
 }
@@ -83,8 +80,7 @@ static struct xtables_match condition_match = {
 	.extra_opts 	= condition_opts,
 };
 
-void _init(void);
-void _init(void)
+static void _init(void)
 {
 	xtables_register_match(&condition_match);
 }
diff --git a/extensions/xt_condition.c b/extensions/xt_condition.c
index 5733cba..c9e16a3 100644
--- a/extensions/xt_condition.c
+++ b/extensions/xt_condition.c
@@ -77,8 +77,7 @@ static int
 xt_condition_read_info(char __user *buffer, char **start, off_t offset,
 			int length, int *eof, void *data)
 {
-	struct condition_variable *var =
-	    (struct condition_variable *) data;
+	const struct condition_variable *var = data;
 
 	buffer[0] = (var->enabled) ? '1' : '0';
 	buffer[1] = '\n';
@@ -93,8 +92,7 @@ static int
 xt_condition_write_info(struct file *file, const char __user *buffer,
 			 unsigned long length, void *data)
 {
-	struct condition_variable *var =
-	    (struct condition_variable *) data;
+	struct condition_variable *var = data;
 	char newval;
 
 	if (length>0) {
@@ -111,7 +109,7 @@ xt_condition_write_info(struct file *file, const char __user *buffer,
 		}
 	}
 
-	return (int) length;
+	return length;
 }
 
 static bool
@@ -120,8 +118,7 @@ condition_mt(const struct sk_buff *skb, const struct net_device *in,
              const void *matchinfo, int offset, unsigned int protoff,
              bool *hotdrop)
 {
-	const struct condition_info *info =
-	    (const struct condition_info *) matchinfo;
+	const struct condition_info *info = matchinfo;
 	struct condition_variable *var;
 	int condition_status = 0;
 
@@ -143,7 +140,7 @@ condition_mt_check(const char *tablename, const void *entry,
                    unsigned int hook_mask)
 {
 	static const char * const forbidden_names[]={ "", ".", ".." };
-	struct condition_info *info = (struct condition_info *) matchinfo;
+	const struct condition_info *info = matchinfo;
 	struct list_head *pos;
 	struct condition_variable *var, *newvar;
 
@@ -214,7 +211,7 @@ condition_mt_check(const char *tablename, const void *entry,
 
 static void condition_mt_destroy(const struct xt_match *match, void *matchinfo)
 {
-	struct condition_info *info = (struct condition_info *) matchinfo;
+	const struct condition_info *info = matchinfo;
 	struct list_head *pos;
 	struct condition_variable *var;