From a8e4da80583e01e226f94a3f5d1ccffc1cc080c5 Mon Sep 17 00:00:00 2001
From: Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com>
Date: Fri, 24 Jan 2014 21:54:00 +0900
Subject: [PATCH] deflatehd: Fix wire is not written if length is 0

---
 src/deflatehd.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/deflatehd.c b/src/deflatehd.c
index 4ecb96fa..09181e1a 100644
--- a/src/deflatehd.c
+++ b/src/deflatehd.c
@@ -90,7 +90,11 @@ static void output_to_json(nghttp2_hd_context *deflater,
   json_object_set_new(obj, "percentage_of_original_size",
                       json_real((double)len / inputlen * 100));
   to_hex(hex, buf, len);
-  json_object_set_new(obj, "wire", json_pack("s#", hex, len * 2));
+  if(len == 0) {
+    json_object_set_new(obj, "wire", json_string(""));
+  } else {
+    json_object_set_new(obj, "wire", json_pack("s#", hex, len * 2));
+  }
   json_object_set_new(obj, "headers", dump_headers(nva, nvlen));
   json_object_set_new(obj, "header_table_size",
                       json_integer(config.table_size));