From 0ec8817ff4cf66c13fe72c73cd22683ff92c8596 Mon Sep 17 00:00:00 2001
From: Kyle Fuller <inbox@kylefuller.co.uk>
Date: Fri, 25 Oct 2013 11:57:16 +0100
Subject: [PATCH] Fixes an issue writing partial data to output stream

This will manifest in a way where you will get duplicate data because it will
write the same data again and again.
---
 AFNetworking/AFURLConnectionOperation.m | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/AFNetworking/AFURLConnectionOperation.m b/AFNetworking/AFURLConnectionOperation.m
index e9a49aa..9617a41 100644
--- a/AFNetworking/AFURLConnectionOperation.m
+++ b/AFNetworking/AFURLConnectionOperation.m
@@ -609,7 +609,7 @@ didReceiveResponse:(NSURLResponse *)response
 
             NSInteger numberOfBytesWritten = 0;
             while (totalNumberOfBytesWritten < (NSInteger)length) {
-                numberOfBytesWritten = [self.outputStream write:&dataBuffer[0] maxLength:length];
+                numberOfBytesWritten = [self.outputStream write:&dataBuffer[totalNumberOfBytesWritten] maxLength:(length - totalNumberOfBytesWritten)];
                 if (numberOfBytesWritten == -1) {
                     [self.connection cancel];
                     [self performSelector:@selector(connection:didFailWithError:) withObject:self.connection withObject:self.outputStream.streamError];