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
>                        
> dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
> 
>       Architecture: OpenBSD.amd64
>       Machine     : amd64
> >Description:
>         Got a mail with "Return-Path: bounces+abcd1...@sendgrid.meetup.com" 
> 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;

Reply via email to