zlib 1.2.3.1

FAQ

@@ -77,7 +77,7 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
 
 11. Can zlib handle .zip archives?
 
-    Not by itself, no.  See the directory contrib/minizip in the zlib
+    Not by itself, no. See the directory contrib/minizip in the zlib
     distribution.
 
 12. Can zlib handle .Z files?
@@ -217,10 +217,14 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
 
 29. Does zlib work on MVS, OS/390, CICS, etc.?
 
-    We don't know for sure. We have heard occasional reports of success on
-    these systems. If you do use it on one of these, please provide us with
-    a report, instructions, and patches that we can reference when we get
-    these questions. Thanks.
+    Yes, there are working ports of zlib 1.1.4 to MVS which you can find
+    here:
+
+    http://www.homerow.net/asm/zlib390.htm
+    http://www.homerow.net/asm/zlibLE.htm
+
+    If these are updated to more recent versions of zlib, please let us
+    know. Thanks.
 
 30. Is there some simpler, easier to read version of inflate I can look at
     to understand the deflate format?
@@ -271,7 +275,9 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
         http://www.ijs.si/software/snprintf/
 
     Note that you should be using the most recent version of zlib. Versions
-    1.1.3 and before were subject to a double-free vulnerability.
+    1.1.3 and before were subject to a double-free vulnerability, and version
+    1.2.1 was subject to an access exception when decompressing invalid
+    compressed data.
 
 34. Is there a Java version of zlib?
 
@@ -292,8 +298,8 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
     performing a conditional jump that depends on an uninitialized value.
     Isn't that a bug?
 
-    No.  That is intentional for performance reasons, and the output of
-    deflate is not affected.  This only started showing up recently since
+    No. That is intentional for performance reasons, and the output of
+    deflate is not affected. This only started showing up recently since
     zlib 1.2.x uses malloc() by default for allocations, whereas earlier
     versions used calloc(), which zeros out the allocated memory.
 
@@ -333,7 +339,23 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
     In any case, the compression improvements are so modest compared to other
     more modern approaches, that it's not worth the effort to implement.
 
-41. Can you please sign these lengthy legal documents and fax them back to us
+41. I'm having a problem with the zip functions in zlib, can you help?
+
+    There are no zip functions in zlib. You are probably using minizip by
+    Giles Vollant, which is found in the contrib directory of zlib. It is not
+    part of zlib. In fact none of the stuff in contrib is part of zlib. The
+    files in there are not supported by the zlib authors. You need to contact
+    the authors of the contribution for help.
+
+42. The match.asm code in contrib is under the GNU General Public License.
+    Since it's part of zlib, doesn't that mean that all of zlib falls under the
+    GNU GPL?
+
+    No. The files in contrib are not part of zlib. They were contributed by
+    other authors and are provided as a convenience to the user within the zlib
+    distribution. Each of the items in contrib have their own license.
+
+43. Can you please sign these lengthy legal documents and fax them back to us
     so that we can use your software in our product?
 
     No. Go away. Shoo.