Fix an abort() caused by miscalculating the size of an internal buffer.

This can crash applications using "libspf2" (e.g. "milter-greylist")
in an e-mail gets delivered via SMTP over IPv6 depending on the
remote machine's IPv6 address.

mail/libspf2/Makefile

@@ -1,6 +1,7 @@
-# $NetBSD: Makefile,v 1.6 2009/07/17 18:00:18 adrianp Exp $
+# $NetBSD: Makefile,v 1.7 2009/09/08 10:36:27 tron Exp $
 
 DISTNAME=	libspf2-1.2.9
+PKGREVISION=	1
 CATEGORIES=	mail
 MASTER_SITES=	http://www.libspf2.org/spf/
 

mail/libspf2/distinfo

@@ -1,5 +1,6 @@
-$NetBSD: distinfo,v 1.3 2009/01/10 23:34:13 adrianp Exp $
+$NetBSD: distinfo,v 1.4 2009/09/08 10:36:27 tron Exp $
 
 SHA1 (libspf2-1.2.9.tar.gz) = 15dfe3b9172180654f4de4dd85f3f01e3bc11503
 RMD160 (libspf2-1.2.9.tar.gz) = d0754d47e297a00038e4185e17704a24d38a4888
 Size (libspf2-1.2.9.tar.gz) = 518001 bytes
+SHA1 (patch-aa) = 81f60333222b510cb511b80aedbb679d2212ab0d

mail/libspf2/patches/patch-aa

@@ -0,0 +1,18 @@
+$NetBSD: patch-aa,v 1.1 2009/09/08 10:36:27 tron Exp $
+
+Fix an abort() caused by miscalculating the size of an internal buffer.
+This can crash applications using "libspf2" (e.g. "milter-greylist")
+in an e-mail gets delivered via SMTP over IPv6 depending on the
+remote machine's IPv6 address.
+
+--- src/libspf2/spf_expand.c.orig	2008-11-03 21:29:00.000000000 +0000
++++ src/libspf2/spf_expand.c	2009-09-08 11:27:52.000000000 +0100
+@@ -245,7 +245,7 @@
+ 		case PARM_CLIENT_IP:		/* SMTP client IP				*/
+ #ifdef COMPUTE
+ 			if (compute_length) {
+-				len = sizeof(ip6_buf);
++				len = sizeof(ip6_rbuf);
+ 				if (d->dv.url_encode)
+ 					len *= 3;
+ 				buflen += len;