From: Remi Gacogne <remi.gacogne@powerdns.com>
Date: Thu, 6 Jul 2017 22:11:49 +0000 (+0200)
Subject: dnsdist: Fix TCP short writes handling
X-Git-Tag: rec-4.1.0-alpha1~33^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d9442969134417a95b7fdf528a1799e3aea5196f;p=thirdparty%2Fpdns.git

dnsdist: Fix TCP short writes handling
---

diff --git a/pdns/iputils.cc b/pdns/iputils.cc
index 8b8601966d..53308e5d62 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 {