On Tue, Mar 06, 2018 at 10:46:23AM +0100, Jan Johansson wrote:
> >Synopsis: Bus error in smtpctl spf walk (on certain domains)
> >Category: user
> >Environment:
> System : OpenBSD 6.3
> Details : OpenBSD 6.3-beta (GENERIC.MP) #26: Fri Mar 2 22:56:04
> MST 2018
>
> [email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
>
> Architecture: OpenBSD.amd64
> Machine : amd64
> >Description:
> Got a mail with "Return-Path: [email protected]"
> and wanted to add it to my white list but smtpctl spf walk says "Bus error".
> Other domains like facebookmail.com works without problem.
> http://www.kitterman.com/spf/validate.html seems to think sendgrid.meetup.com
> has a valid record.
>
> >How-To-Repeat:
> echo sendgrid.meetup.com | smtpctl spf walk
>
> >Fix:
> Not known
Try this,
-Otto
Index: spfwalk.c
===================================================================
RCS file: /cvs/src/usr.sbin/smtpd/spfwalk.c,v
retrieving revision 1.5
diff -u -p -r1.5 spfwalk.c
--- spfwalk.c 26 Jan 2018 08:00:54 -0000 1.5
+++ spfwalk.c 6 Mar 2018 12:12:42 -0000
@@ -140,6 +140,8 @@ dispatch_txt(struct dns_rr *rr)
char *end;
ssize_t n;
+ if (rr->rr_type != T_TXT)
+ return;
n = parse_txt(rr->rr.other.rdata, rr->rr.other.rdlen, buf, sizeof(buf));
if (n == -1 || n == sizeof(buf))
return;
