From 2d22507636ea9deff5909d548d376e4cb626de13 Mon Sep 17 00:00:00 2001
From: Holger Weiss <holger@zedat.fu-berlin.de>
Date: Sun, 20 Dec 2015 23:30:11 +0100
Subject: [PATCH] ejabberd_http: Cope with large POST/PUT requests

gen_tcp returns 'enomem' if we try to receive more than 64 MiB.
---
 src/ejabberd_http.erl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/ejabberd_http.erl b/src/ejabberd_http.erl
index 6d54a7eda..920361017 100644
--- a/src/ejabberd_http.erl
+++ b/src/ejabberd_http.erl
@@ -513,8 +513,8 @@ recv_data(#state{trail = Trail} = State, Len, <<>>) when byte_size(Trail) > Len
 recv_data(State, Len, Acc) ->
     case State#state.trail of
 	<<>> ->
-	    case (State#state.sockmod):recv(State#state.socket, Len,
-					    300000)
+	    case (State#state.sockmod):recv(State#state.socket,
+					    min(Len, 16#4000000), 300000)
 	    of
 		{ok, Data} ->
 		    recv_data(State, Len - byte_size(Data), <<Acc/binary, Data/binary>>);