From 54a2b63c704cd963dd17101477c62afd30d1b319 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Wed, 6 May 2020 23:31:43 +0200
Subject: http2: simplify and clean up trailer handling

Triggered by a crash detected by OSS-Fuzz after the dynbuf introduction in
ed35d6590e72. This should make the trailer handling more straight forward and
hopefully less error-prone.

Deliver the trailer header to the callback already at receive-time. No
longer caches the trailers to get delivered at end of stream.

Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=22030
Closes #5348
---
 lib/dynbuf.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'lib/dynbuf.h')

diff --git a/lib/dynbuf.h b/lib/dynbuf.h
index b4932b535..e21294115 100644
--- a/lib/dynbuf.h
+++ b/lib/dynbuf.h
@@ -53,7 +53,7 @@ size_t Curl_dyn_len(const struct dynbuf *s);
 #define DYN_HAXPROXY        2048
 #define DYN_HTTP_REQUEST    (128*1024)
 #define DYN_H2_HEADERS      (128*1024)
-#define DYN_H2_TRAILERS     (128*1024)
+#define DYN_H2_TRAILER      4096
 #define DYN_APRINTF         8000000
 #define DYN_RTSP_REQ_HEADER (64*1024)
 #define DYN_TRAILERS        (64*1024)
-- 
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