From 3c522386e961d61768ea527d04713b5402356dd4 Mon Sep 17 00:00:00 2001
From: yhirose <yuji.hirose.bug@gmail.com>
Date: Sun, 12 Sep 2021 19:24:48 -0400
Subject: [PATCH] Fix "Issue 38551 in oss-fuzz: cpp-httplib:server_fuzzer:
 Timeout in server_fuzze"

---
 httplib.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/httplib.h b/httplib.h
index fae47fa..392f895 100644
--- a/httplib.h
+++ b/httplib.h
@@ -2971,7 +2971,14 @@ inline bool gzip_decompressor::decompress(const char *data, size_t data_length,
       strm_.avail_out = static_cast<uInt>(buff.size());
       strm_.next_out = reinterpret_cast<Bytef *>(buff.data());
 
+      auto prev_avail_in = strm_.avail_in;
+
       ret = inflate(&strm_, Z_NO_FLUSH);
+
+      if (prev_avail_in - strm_.avail_in == 0) {
+        return false;
+      }
+
       assert(ret != Z_STREAM_ERROR);
       switch (ret) {
       case Z_NEED_DICT: