[Bf-blender-cvs] [7f4533f] master: String API: BLI_ascii_strtolower/upper now check NULL terminator

[Campbell Barton]

Commit: 7f4533fa496bf18a1278ddf70f8189c0edda2c06
Author: Campbell Barton
Date:   Wed Dec 25 01:20:46 2013 +1100
http://developer.blender.org/rB7f4533fa496bf18a1278ddf70f8189c0edda2c06

String API: BLI_ascii_strtolower/upper now check NULL terminator

This wasn't needed before now, but since recent change to bUnit_ReplaceString,
it uses in a context where NULL terminator is expected - best add.
(spotted by Sergey)

===================================================================

M	source/blender/blenlib/intern/string.c

===================================================================

diff --git a/source/blender/blenlib/intern/string.c b/source/blender/blenlib/intern/string.c
index 572b142..0ce40f7 100644
--- a/source/blender/blenlib/intern/string.c
+++ b/source/blender/blenlib/intern/string.c
@@ -582,7 +582,7 @@ void BLI_ascii_strtolower(char *str, const size_t len)
 {
 	size_t i;
 
-	for (i = 0; i < len; i++)
+	for (i = 0; (i < len) && str[i]; i++)
 		if (str[i] >= 'A' && str[i] <= 'Z')
 			str[i] += 'a' - 'A';
 }
@@ -591,7 +591,7 @@ void BLI_ascii_strtoupper(char *str, const size_t len)
 {
 	size_t i;
 
-	for (i = 0; i < len; i++)
+	for (i = 0; (i < len) && str[i]; i++)
 		if (str[i] >= 'a' && str[i] <= 'z')
 			str[i] -= 'a' - 'A';
 }