1 files changed, 15 insertions, 2 deletions

diff --git a/mysys/string.c b/mysys/string.c
index 870963abd0d..d9791341c60 100644
--- a/mysys/string.c
+++ b/mysys/string.c
@@ -98,20 +98,21 @@ my_bool dynstr_append_mem(DYNAMIC_STRING *str, const char *append,
 			  size_t length)
 {
   char *new_ptr;
+  DBUG_ENTER("dynstr_append_mem");
   if (str->length+length >= str->max_length)
   {
     size_t new_length=(str->length+length+str->alloc_increment)/
       str->alloc_increment;
     new_length*=str->alloc_increment;
     if (!(new_ptr=(char*) my_realloc(str->str,new_length,MYF(MY_WME))))
-      return TRUE;
+      DBUG_RETURN(TRUE);
     str->str=new_ptr;
     str->max_length=new_length;
   }
   memcpy(str->str + str->length,append,length);
   str->length+=length;
   str->str[str->length]=0;			/* Safety for C programs */
-  return FALSE;
+  DBUG_RETURN(FALSE);
 }
 
 
@@ -180,3 +181,15 @@ void dynstr_free(DYNAMIC_STRING *str)
   my_free(str->str);
   str->str= NULL;
 }
+
+
+/* Give over the control of the dynamic string to caller */
+
+void dynstr_reassociate(DYNAMIC_STRING *str, char **ptr, size_t *length,
+                        size_t *alloc_length)
+{
+  *ptr=          str->str;
+  *length=       str->length;
+  *alloc_length= str->max_length;
+  str->str=0;
+}