From 7f888234088415a34c244f1fbe71dc68a8585186 Mon Sep 17 00:00:00 2001
From: sisong <housisong@hotmail.com>
Date: Mon, 12 Aug 2024 20:25:47 +0800
Subject: [PATCH] fix re read head data for gzip when decompress multi
 concatenated gzip;

---
 programs/gzip_decompress_by_stream_mt.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/programs/gzip_decompress_by_stream_mt.cpp b/programs/gzip_decompress_by_stream_mt.cpp
index 58375263..da01a35f 100644
--- a/programs/gzip_decompress_by_stream_mt.cpp
+++ b/programs/gzip_decompress_by_stream_mt.cpp
@@ -77,7 +77,7 @@ static int _gzip_decompress_by_stream(struct libdeflate_decompressor *d,
         {//gzip head
             if (code_cur+GZIP_MIN_OVERHEAD>code_buf_size)
                 _read_code_from_file();
-            ret=libdeflate_gzip_decompress_head(code_buf,code_buf_size-code_cur,&actual_in_nbytes_ret);
+            ret=libdeflate_gzip_decompress_head(code_buf+code_cur,code_buf_size-code_cur,&actual_in_nbytes_ret);
             _check_d(ret);
             code_cur+=actual_in_nbytes_ret;
         }