From 331c18d09a7bd2fcda91fcdb025178ec8d3a2720 Mon Sep 17 00:00:00 2001
From: Max Bruckner <max@maxbruckner.de>
Date: Sat, 18 Feb 2017 11:58:24 +0100
Subject: [PATCH] ensure: only memcopy what's necessary

We don't need to copy the entire printbuffer, only the part that is
used.
---
 cJSON.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cJSON.c b/cJSON.c
index 4b5005a..89943b5 100644
--- a/cJSON.c
+++ b/cJSON.c
@@ -300,7 +300,7 @@ static unsigned char* ensure(printbuffer *p, size_t needed)
         }
         if (newbuffer)
         {
-            memcpy(newbuffer, p->buffer, p->length);
+            memcpy(newbuffer, p->buffer, p->offset + 1);
         }
         cJSON_free(p->buffer);
     }