linux-kernel - [PATCH 05/16] dynamic_debug: replace strcpy with strlcpy, in ddebug_setup

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Date:	Mon, 19 Dec 2011 17:12:29 -0500
From:	Jason Baron <jbaron@...hat.com>
To:	greg@...ah.com
Cc:	jim.cromie@...il.com, joe@...ches.com, bart.vanassche@...il.com,
	linux-kernel@...r.kernel.org
Subject: [PATCH 05/16] dynamic_debug: replace strcpy with strlcpy, in ddebug_setup_query()

From: Jim Cromie <jim.cromie@...il.com>

Replace strcpy with strlcpy, and add define for the size constant.

[jbaron@...hat.com: Use DDEBUG_STRING_SIZE for overflow check]
Signed-off-by: Jim Cromie <jim.cromie@...il.com>
Signed-off-by: Jason Baron <jbaron@...hat.com>
---
 lib/dynamic_debug.c |    8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index 8c88b89..6fc8622 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -525,14 +525,16 @@ EXPORT_SYMBOL(__dynamic_netdev_dbg);
 
 #endif
 
-static __initdata char ddebug_setup_string[1024];
+#define DDEBUG_STRING_SIZE 1024
+static __initdata char ddebug_setup_string[DDEBUG_STRING_SIZE];
+
 static __init int ddebug_setup_query(char *str)
 {
-	if (strlen(str) >= 1024) {
+	if (strlen(str) >= DDEBUG_STRING_SIZE) {
 		pr_warn("ddebug boot param string too large\n");
 		return 0;
 	}
-	strcpy(ddebug_setup_string, str);
+	strlcpy(ddebug_setup_string, str, DDEBUG_STRING_SIZE);
 	return 1;
 }
 
-- 
1.7.7.3

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