Copied from Fedora.

http://pkgs.fedoraproject.org/cgit/unzip.git/plain/unzip-6.0-attribs-overflow.patch?id=d18f821e

diff -up unzip60/zipinfo.c.attribs-overflow unzip60/zipinfo.c
--- unzip60/zipinfo.c.attribs-overflow	2009-11-30 09:55:39.000000000 +0100
+++ unzip60/zipinfo.c	2009-11-30 09:56:42.844263244 +0100
@@ -1881,7 +1881,7 @@ static int zi_short(__G)   /* return PK-
 #endif
     int         k, error, error_in_archive=PK_COOL;
     unsigned    hostnum, hostver, methid, methnum, xattr;
-    char        *p, workspace[12], attribs[16];
+    char        *p, workspace[12], attribs[17];
     char        methbuf[5];
     static ZCONST char dtype[5]="NXFS"; /* normal, maximum, fast, superfast */
     static ZCONST char Far os[NUM_HOSTS+1][4] = {
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<div class='path'>path: <a href='/guix/log/?id=a46c00a3d8a45e0390fc5e5fd18c74000550554c'>root</a>/<a href='/guix/log/tests?id=a46c00a3d8a45e0390fc5e5fd18c74000550554c'>tests</a>/<a href='/guix/log/tests/import-utils.scm?id=a46c00a3d8a45e0390fc5e5fd18c74000550554c'>import-utils.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/tests/import-utils.scm?id=a46c00a3d8a45e0390fc5e5fd18c74000550554c&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2018-02-16 11:10:12 +0100'>2018-02-16</span></td><td><a href='/guix/commit/tests/import-utils.scm?id=5e2495d09e5ad78f8ebb6bfa6fb4ff09fb305ec4'>import: utils: 'alist-&gt;package' allows false license.</a><span class='msg-avail'>...<span class='msg-tooltip'>Reported by &lt;pkill9@runbox.com&gt;.
Fixes &lt;https://bugs.gnu.org/30470&gt;.

* guix/import/utils.scm (alist-&gt;package): Check whether 'license' is
false and set the 'license' field to #f in this case.
* tests/import-utils.scm ("alist-&gt;package with false license"): New
test.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2017-10-06 14:16:24 +0200'>2017-10-06</span></td><td><a href='/guix/commit/tests/import-utils.scm?id=8b920d707ed07a3251227f77526cf875d86a4417'>import: Use a 'file://' URL in 'alist-&gt;package' test.</a><span class='msg-avail'>...<span class='msg-tooltip'>* tests/import-utils.scm ("alist-&gt;package with simple source"): Use a
'file://' URL.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2017-09-28 13:10:11 +0200'>2017-09-28</span></td><td><a href='/guix/commit/tests/import-utils.scm?id=5e892bc365a3da0d30a0982783ee2ab82ee090f8'>import: Add generic data to package converter.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/import/utils.scm (build-system-modules, lookup-build-system-by-name,
specs-&gt;package-lists, source-spec-&gt;object, alist-&gt;package): New procedures.
* tests/import-utils.scm: Add tests for alist-&gt;package.
</span></span></td><td>Ricardo Wurmus</td></tr>