$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;