From 66fa83f7b5eb2171042aa1f804f254c94b4ddb77 Mon Sep 17 00:00:00 2001
From: Witold Filipczyk <witekfl@poczta.onet.pl>
Date: Sat, 22 Aug 2015 19:28:50 +0200
Subject: [PATCH] deflate once again.

---
 src/encoding/deflate.c | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/src/encoding/deflate.c b/src/encoding/deflate.c
index 29401355..975c2a87 100644
--- a/src/encoding/deflate.c
+++ b/src/encoding/deflate.c
@@ -64,7 +64,11 @@ deflate_open(int window_size, struct stream_encoded *stream, int fd)
 	data->after_first_read = 0;
 	data->after_end = 0;
 
-	err = inflateInit2(&data->deflate_stream, window_size);
+	if (window_size > 0) {
+		err = inflateInit2(&data->deflate_stream, window_size);
+	} else {
+		err = inflateInit(&data->deflate_stream);
+	}
 	if (err != Z_OK) {
 		mem_free(data);
 		return -1;
@@ -197,11 +201,21 @@ deflate_decode_buffer(struct stream_encoded *st, int window_size, unsigned char
 		buffer		 = new_buffer;
 		stream->next_out  = buffer + stream->total_out;
 		stream->avail_out = MAX_STR_LEN;
-
+restart2:
 		error = inflate(stream, Z_SYNC_FLUSH);
 		if (error == Z_STREAM_END) {
 			break;
 		}
+		if (error == Z_DATA_ERROR && !enc_data->after_first_read) {
+			(void)inflateEnd(stream);
+			error = inflateInit2(stream, -MAX_WBITS);
+			if (error == Z_OK) {
+				enc_data->after_first_read = 1;
+				stream->next_in = data;
+				stream->avail_in = len;
+				goto restart2; 
+			}
+		}
 	} while (error == Z_OK && stream->avail_in > 0);
 
 	if (error == Z_STREAM_END) {