grarpamp wrote: > >> http://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml > > > > Zero really is reserved, as mentioned on that list, and has been > > assigned some special meaning under certain circumstances, so it really > > is not valid for SMTP (or any other typical network service). It's ok > > to disallow it. See man 3 socket: you cannot create a socket using port > > 0. > > I tend to forget such things without verbose mention in POSIX, FreeBSD, > or Linux docs, particularly older bind pages, but find some references. > I think you can manually set sin_port zero in the sockaddr struct.
You can. The OS chooses an available port for you in that case. > Then there are raw sockets. If you want to implement your own TCP stack on top of raw sockets, you could do that... ------------------------------------------------------------------------------ Comprehensive Server Monitoring with Site24x7. Monitor 10 servers for $9/Month. Get alerted through email, SMS, voice calls or mobile push notifications. Take corrective actions from your mobile device. http://p.sf.net/sfu/Zoho _______________________________________________ msmtp-users mailing list msmtp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/msmtp-users
