From aecbce283db243ebfc786879e50b0da8d7006ed8 Mon Sep 17 00:00:00 2001
From: goldsimon <goldsimon@gmx.de>
Date: Tue, 21 Oct 2014 11:09:07 +0200
Subject: [PATCH] fixed bug #38219 Assert on TCP netconn_write with sndtimeout
 set

---
 CHANGELOG         | 3 +++
 src/api/api_msg.c | 1 +
 2 files changed, 4 insertions(+)

diff --git a/CHANGELOG b/CHANGELOG
index 321c1c89..0bea06dd 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -127,6 +127,9 @@ HISTORY
 
   ++ Bugfixes:
 
+  2014-10-21: Simon Goldschmidt
+  * api_msg.c: fixed bug #38219 Assert on TCP netconn_write with sndtimeout set
+
   2014-09-16: Kevin Cernekee
   * dns.c: patch #8480 Fix handling of dns_seqno wraparound
 
diff --git a/src/api/api_msg.c b/src/api/api_msg.c
index 8b92549d..2a90e93e 100644
--- a/src/api/api_msg.c
+++ b/src/api/api_msg.c
@@ -1266,6 +1266,7 @@ lwip_netconn_do_writemore(struct netconn *conn)
       /* partial write */
       err = ERR_OK;
       conn->current_msg->msg.w.len = conn->write_offset;
+      conn->write_offset = 0;
     }
   } else
 #endif /* LWIP_SO_SNDTIMEO */