# UToronto.cf
#
# University of Toronto siteinfo.cf file
#
provide siteinfo

# If hostnames aren't fully qualified around here, define default net.
orgdomain=toronto.edu

#| Specify your primary organizational domain name.

# If your organization is known under multiple (pseudo-)domain names, list here:
orgdomains='toronto.edu|utoronto.ca|toronto.cdn|toronto.csnet'

#| If $orgdomain is the only name your organization is known under,
#| specify it: orgdomains=$orgdomain

# My official hostname
if [ -f /bin/hostname ]; then
	rawhostname=$(/bin/hostname)
elif [ -f /etc/sys_id ]; then
	read rawhostname < /etc/sys_id
else
	rawhostname=$(/bin/uname -n)
fi

#| There are several ways of obtaining the host's own idea of what its
#| hostname is.  They depend on the variant of UNIX running on the
#| machine.  The choices here cover all operating systems to which the
#| mailer has been ported.

hostname=$(canon $rawhostname)	# in case you don't like $orgdomain baggage

#| If the hostname is not a fully qualified name, we need to canonicalize
#| it.  This means we look up the host's idea of the name in the
#| nameserver or the /etc/hosts file, and use the primary name found.

tsift $hostname in
.+\.(edu|gov|mil|oth|org|net|ca|dk|uk)		# add toplevels as you please
	break ;;				# do nothing
.*	hostname=$hostname.$orgdomain ;;	# default domain
tfist

#| This is a sanity check on the hostname we have determined so far.

# set hostname to enable message-id generation and checking
hostname $hostname

#| We enable message-ids because we want to be able to trace messages
#| when something goes wrong.  Besides, it is required by RFC822.


# For a hostname of 'ephemeral.ai.toronto.edu', this is what should happen:

#| We need to do some more sanity checking.  In case the nameserver is
#| broken, for example, it may not return a fully qualified name.  We
#| also need to make sure $orgdomains contains $orgdomain, to avoid
#| potential problems.

tsift $hostname in
(.*\.)?([^.]+)\.((ca|edu|gov|mil|oth|org|net|us|uucp)|(ac|co|re)\...)

#| This pattern will work for organizational domains in Canada, the DARPA
#| namespace, the United States, and countries using AC, CO, and RE
#| second-level subdomains, like the United Kingdom.  If you are not
#| covered by these, you will need to change this pattern or section of
#| code.

	orgdomain=\2.\3			# toronto.edu or utoronto.ca
	case "$orgdomain" in
	$orgdomains)
		break ;;
	*)	if [ x$orgdomains = x ]; then
			orgdomains=$orgdomain
		else
			echo warning: $orgdomain is not matched by ${orgdomains}!
			orgdomains="$orgdomain|$orgdomains"
		fi ;;
	esac
	break ;;
.*	echo mailer: config: cannot interpret $hostname properly
	exit 1 ;;
tfist

#| Change this for whatever conventions are in place at your organization.

# If we are a subdomain of an organizational domain, we may wish to do
# hostname hiding. Figure out what name we should masquerade as within
# our organizational domain. If not, disable the first case label.

tsift $hostname in
(.*\.)?([^.]+)\.$orgdomain
	subdomain=\2				# ai
	break ;;
(.*)?\.$orgdomain
	subdomain=\1				# ephemeral.ai
	break ;;
tfist


# This is what it will say on out mail
mydomain=$subdomain.$orgdomain

# Any domain name with these toplevels will not be canonicalized
toplevels='ca|edu|com|net|mil|int|gov|org'