From: Harry Sintonen <sintonen@iki.fi>
Date: Thu, 26 Jul 2018 22:04:29 +0000 (+0300)
Subject: HTTP: Don't attempt to needlessly decompress redirect body
X-Git-Tag: curl-7_61_1~104
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=1836d59ed8a3f052a3fa6aa676c10721d8b57492;p=curl

HTTP: Don't attempt to needlessly decompress redirect body

This change fixes a regression where redirect body would needlessly be
decompressed even though it was to be ignored anyway. As it happens this
causes secondary issues since there appears to be a bug in apache2 that
it in certain conditions generates a corrupt zlib response. The
regression was created by commit:
dbcced8e32b50c068ac297106f0502ee200a1ebd

Discovered-by: Harry Sintonen
Closes #2798
---

diff --git a/lib/transfer.c b/lib/transfer.c
index 435d3e1ec..43f567c4f 100644
--- a/lib/transfer.c
+++ b/lib/transfer.c
@@ -797,7 +797,7 @@ static CURLcode readwrite_data(struct Curl_easy *data,
                                            nread);
             }
           }
-          else
+          else if(!k->ignorebody)
             result = Curl_unencode_write(conn, k->writer_stack, k->str, nread);
         }
         k->badheader = HEADER_NORMAL; /* taken care of now */