From d9442969134417a95b7fdf528a1799e3aea5196f Mon Sep 17 00:00:00 2001
From: Remi Gacogne <remi.gacogne@powerdns.com>
Date: Fri, 7 Jul 2017 00:11:49 +0200
Subject: [PATCH] dnsdist: Fix TCP short writes handling

---
 pdns/iputils.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pdns/iputils.cc b/pdns/iputils.cc
index 8b8601966..53308e5d6 100644
--- a/pdns/iputils.cc
+++ b/pdns/iputils.cc
@@ -357,6 +357,7 @@ bool sendSizeAndMsgWithTimeout(int sock, uint16_t bufferLen, const char* buffer,
       do {
         if (written < iov[pos].iov_len) {
           iov[pos].iov_len -= written;
+          iov[pos].iov_base = reinterpret_cast<void*>(reinterpret_cast<char*>(iov[pos].iov_base) + written);
           written = 0;
         }
         else {
-- 
2.50.0