[Bug 222136] [regression] [zlib] [patch] embedded Tomcat web server gzip compression broken after latest zlib import

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Fri Sep 8 10:29:38 UTC 2017


            Bug ID: 222136
           Summary: [regression] [zlib] [patch] embedded Tomcat web server
                    gzip compression broken after latest zlib import
           Product: Base System
           Version: 11.1-STABLE
          Hardware: Any
                OS: Any
            Status: New
          Keywords: patch, regression
          Severity: Affects Some People
          Priority: ---
         Component: bin
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: eugen at freebsd.org
          Keywords: patch, regression

Created attachment 186164
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=186164&action=edit
upstream fix for deflate.c

I've just upgraded my FreeBSD 11.0 server upto recent 11.1-STABLE without
touching other software. The server runs UniFi Controller containing embedded
Tomcat web server that uses gzip to compress HTML responses.

After FreeBSD upgrade, it started producing broken gzip stream and "curl -vvvv
--compress localhost:8880/guest/s/default/" confirms that complaining "Error
while processing content unencoding: invalid block type".

The problem is exactly the same described in
https://bugs.launchpad.net/ubuntu/+source/zlib/+bug/1692870 that points to the
upstream fix:
that I've attached to this PR (deflate.c part, without comment part in zlib.h)

This patch fixes the problem.

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