change ast_strlen_zero to also check for the string to be defined

git-svn-id: http://svn.digium.com/svn/asterisk/trunk@6862 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 1 insertions, 1 deletions

diff --git a/include/asterisk/strings.h b/include/asterisk/strings.h
index d7d27e515..715061216 100755
--- a/include/asterisk/strings.h
+++ b/include/asterisk/strings.h
@@ -32,7 +32,7 @@
 
 static inline int ast_strlen_zero(const char *s)
 {
-	return (*s == '\0');
+	return (!s || (*s == '\0'));
 }
 
 /*!