tweak

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@7701 d0543943-73ff-0310-b7d9-9358b9ac24b2

diff --git a/src/switch_apr.c b/src/switch_apr.c
index 8df64f5fcef31495cef3d4cce01010919da8d187..fff38b14bb81d05bd722d84c49cf39e136f8d21f 100644 (file)
--- a/src/switch_apr.c
+++ b/src/switch_apr.c
@@ -124,6 +124,11 @@ SWITCH_DECLARE(int) switch_vsnprintf(char *buf, switch_size_t len, const char *f
 
 SWITCH_DECLARE(char *) switch_copy_string(char *dst, const char *src, switch_size_t dst_size)
 {
+       if (!dst) return NULL;
+       if (!src) {
+               dst = NULL;
+               return NULL;
+       }
        return apr_cpystrn(dst, src, dst_size);
 }