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#!/bin/sh
#
# This script is called when a dhcp event occurs.
#
# Here is where we'll start/stop sendmail if needed.
#
# Written By Richard Nelson <cowboy@debian.org>
#
# NOTE: The following lines (without the #) must be in /etc/mail/sendmail.mc:
# include(`/etc/mail/dialup.m4')dnl
# include(`/etc/mail/provider.m4')dnl
#
# NOTE: The dhcp DNS name is used as the peer name in /etc/mail/peers.
#
# No need to continue if we're called with an unsupported option
case "$reason" in
EXPIRE|FAIL|RELEASE|STOP) #down... and TIMEOUT too ???
;;
BOUND|RENEW|REBIND|REBOOT|TIMEOUT) #up... why TIMEOUT here ???
;;
*)
return;
;;
esac;
# Bring in some script functions to handle dynamic configuration
. /usr/share/sendmail/dynamic;
# Note the interface that just changed
update_interface "$interface" "$reason";
# If the domain name has changed, update the provider information
if [ "$new_domain_name" != "$old_domain_name" ]; then
update_provider "$new_domain_name";
fi;
# If the ip address has changed, update the host information
if [ "$new_ip_address" != "$oldnew_ip_address" ]; then
update_host "$new_ip_address";
fi;
# If anything has been changed, update sendmail.cf and reload
# Actually, we'll delay the reload because we'll be hit in a moment
# to handle the change by /etc/network/if-up.d/sendmail
update_sendmail "dhcp" Delayed;
return;
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