unzip: add CVE-2016-9844 patch

srcpkgs/unzip/patches/patch-zipinfo.c.patch

@@ -0,0 +1,27 @@
+$NetBSD: patch-zipinfo.c,v 1.1 2017/02/04 23:25:59 wiz Exp $
+
+Fix crash in zipinfo, CVE-2016-9844.
+http://www.openwall.com/lists/oss-security/2016/12/05/19
+
+--- zipinfo.c.orig	2009-02-08 17:04:30.000000000 +0000
++++ zipinfo.c
+@@ -1921,7 +1921,18 @@ static int zi_short(__G)   /* return PK-
+         ush  dnum=(ush)((G.crec.general_purpose_bit_flag>>1) & 3);
+         methbuf[3] = dtype[dnum];
+     } else if (methnum >= NUM_METHODS) {   /* unknown */
+-        sprintf(&methbuf[1], "%03u", G.crec.compression_method);
++        /* 2016-12-05 SMS.
++         * https://launchpad.net/bugs/1643750
++         * Unexpectedly large compression methods overflow
++         * &methbuf[].  Use the old, three-digit decimal format
++         * for values which fit.  Otherwise, sacrifice the "u",
++         * and use four-digit hexadecimal.
++         */
++        if (G.crec.compression_method <= 999) {
++            sprintf( &methbuf[ 1], "%03u", G.crec.compression_method);
++        } else {
++            sprintf( &methbuf[ 0], "%04X", G.crec.compression_method);
++        }
+     }
+ 
+     for (k = 0;  k < 15;  ++k)

srcpkgs/unzip/template

@@ -1,7 +1,7 @@
 # Template file for 'unzip'
 pkgname=unzip
 version=6.0
-revision=10
+revision=11
 makedepends="bzip2-devel"
 wrksrc=unzip60
 short_desc="List, test and extract compressed files in a ZIP archive"