On Sat, Aug 24, 2019 at 10:16:26PM +0200, Martijn van Duren wrote:
> On 8/24/19 10:06 PM, Gilles Chehade wrote:
> > On Sat, Aug 24, 2019 at 12:32:05PM -0700, Darren S. wrote:
> >> OpenBSD 6.5 amd64
> >> OpenSMTPD 6.5.0
> >>
> >> port [port]
> >> Listen on the given port instead of the default port 25.
> >>
> >> I wanted to confirm if service names are intended to be supported for
> >> `listen on` option in smtpd.conf.
> >>
> >> These result in syntax failure:
> >>
> >> listen on lo port smtp
> >> listen on lo port smtps
> >>
> >> These do not:
> >>
> >> listen on lo port 25
> >> listen on lo port 465
> >>
> >> This also does not:
> >>
> >> listen on lo port submission
> >>
> >> Found it curious that `submission` may be used in place of a port
> >> number but not the other service names.
> >>
> >
> > this is because `smtp' and `smtps` are keywords, so they must be quoted:
> >
> > listen on lo port "smtp"
> >
> >
> Don't know if there's interest, but considering the port argument is
> non-optional and smtp and smtps are valid (and imho not unreasonable)
> port names I reckon we could add them explicitly so they can be used
> without quotes.
>
You beat me to it, yes this makes sense.
> Index: parse.y
> ===================================================================
> RCS file: /cvs/src/usr.sbin/smtpd/parse.y,v
> retrieving revision 1.258
> diff -u -p -r1.258 parse.y
> --- parse.y 23 Aug 2019 19:05:01 -0000 1.258
> +++ parse.y 24 Aug 2019 20:14:40 -0000
> @@ -1863,6 +1863,38 @@ opt_if_listen : INET4 {
> free($2);
> listen_opts.port = ntohs(servent->s_port);
> }
> + | PORT SMTP {
> + struct servent *servent;
> +
> + if (listen_opts.options & LO_PORT) {
> + yyerror("port already specified");
> + YYERROR;
> + }
> + listen_opts.options |= LO_PORT;
> +
> + servent = getservbyname("smtp", "tcp");
> + if (servent == NULL) {
> + yyerror("invalid port: smtp");
> + YYERROR;
> + }
> + listen_opts.port = ntohs(servent->s_port);
> + }
> + | PORT SMTPS {
> + struct servent *servent;
> +
> + if (listen_opts.options & LO_PORT) {
> + yyerror("port already specified");
> + YYERROR;
> + }
> + listen_opts.options |= LO_PORT;
> +
> + servent = getservbyname("smtps", "tcp");
> + if (servent == NULL) {
> + yyerror("invalid port: smtps");
> + YYERROR;
> + }
> + listen_opts.port = ntohs(servent->s_port);
> + }
> | PORT NUMBER {
> if (listen_opts.options & LO_PORT) {
> yyerror("port already specified");
>
--
Gilles Chehade @poolpOrg
https://www.poolp.org patreon: https://www.patreon.com/gilles
