From 8422543ac90bdaece011b229f4d28d15090fc6ab Mon Sep 17 00:00:00 2001
From: Dan Walmsley <dan@walms.co.uk>
Date: Fri, 9 Aug 2019 11:51:45 +0100
Subject: [PATCH] free string in dtor

---
 native/Avalonia.Native/src/OSX/AvnString.mm | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/native/Avalonia.Native/src/OSX/AvnString.mm b/native/Avalonia.Native/src/OSX/AvnString.mm
index 7b6f4c0a3e..b62fe8a968 100644
--- a/native/Avalonia.Native/src/OSX/AvnString.mm
+++ b/native/Avalonia.Native/src/OSX/AvnString.mm
@@ -18,14 +18,21 @@ public:
     FORWARD_IUNKNOWN()
     
     AvnStringImpl(NSString* string)
-    {
+    { 
         auto cstring = [string cStringUsingEncoding:NSUTF8StringEncoding];
         _length = (int)[string lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
         
-        _cstring = (const char*)malloc(_length);
+        _cstring = (const char*)malloc(_length + 5);
+        
+        memset((void*)_cstring, 0, _length + 5);
         memcpy((void*)_cstring, (void*)cstring, _length);
     }
     
+    virtual ~AvnStringImpl()
+    {
+        free((void*)_cstring);
+    }
+    
     virtual HRESULT Pointer(void**retOut) override
     {
         @autoreleasepool