File _service:tar_scm_kernel_repo:backport-Handle-ca... of Package zlib

File _service:tar_scm_kernel_repo:backport-Handle-case-where-inflateSync-used-when-header-never.patch of Package zlib

From 44e8ac810d7d50381429a15cdc6e48816beafd2b Mon Sep 17 00:00:00 2001
From: Mark Adler <madler@alumni.caltech.edu>
Date: Sun, 16 Apr 2017 08:35:33 -0700
Subject: [PATCH] Handle case where inflateSync used when header never
 processed.

If zlib and/or gzip header processing was requested, but a header
was never provided and inflateSync was used successfully, then the
inflate state would be inconsistent, trying to compute a check
value but with no flags set. This commit sets the inflate mode to
raw in this case, since there is no other assumption that can be
made if a header was requested but never seen.

Reference:https://github.com/madler/zlib/commit/44e8ac810d7d50381429a15cdc6e48816beafd2b
Conflict:NA
---
 inflate.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/inflate.c b/inflate.c
index a4b5b68..575fcdf 100644
--- a/inflate.c
+++ b/inflate.c
@@ -1433,6 +1433,8 @@ z_streamp strm;
 
     /* return no joy or set up to restart inflate() on a new block */
     if (state->have != 4) return Z_DATA_ERROR;
+    if (state->mode == HEAD)
+        state->wrap = 0;    /* never processed header, so assume raw */
     in = strm->total_in;  out = strm->total_out;
     inflateReset(strm);
     strm->total_in = in;  strm->total_out = out;
-- 
2.23.0