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#!/bin/sh
#
# This script is called when ppp connects to the network.
#
# Here is where we'll start sendmail if needed, and will
# run the queue in either case.
#
# 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
#
# ALSO: make sure ipparam is specified somewhere in the ppp options;
# it will be used as the name of a file in /etc/mail/peers
#
# Exit by default, check for validity before commenting out the next line:
exit 0;
# Define our domain name (from PPP) for sendmail.
# These variables are for the use of the scripts run by run-parts
#PPP_IFACE="$1";
#PPP_TTY="$2";
#PPP_SPEED="$3";
#PPP_LOCAL="$4";
#PPP_REMOTE="$5";
#PPP_IPPARAM="$6";
if [ ! -z "$PPP_LOCAL" ]; then
addr=$PPP_LOCAL;
provider=$PPP_IPPARAM;
else
addr=$1;
provider=$2;
fi;
# Determine our fqdn from our ISP
maxloop=20;
cntr=0;
name="";
until (test ! -z "$name"); do
cntr=$(($cntr+1));
rev=$(host $addr);
name=$(echo "$rev" | grep '^Name:' | awk '{print $2}');
if [ -z "$name" ]; then
name=${rev##*domain name pointer };
name=${name%.};
fi;
test=$(echo $name | cut -d ' ' -f 1);
if [ "$name" != "**" ]; then
break;
elif (($cntr > $maxloop)); then
name='';
break;
fi;
done;
echo "addr=$addr, name=$name";
file="/etc/mail/dialup.m4";
#file="dialup.m4";
if [ ! -z "$name" ]; then
cat <<-EOT > $file;
LOCAL_CONFIG
#------------------------------------------------------------
#
# Dynamic updates from $0
#
# NOTE: the following line *MUST* be in /etc/mail/sendmail.mc
dnl include(\`/etc/mail/dialup.m4')dnl
#
# Chose one of the following options:
# * Add our true hostname as a Virtual Host (we'll accept
# mail for it, but keep our local name for SMTP AUTH, etc)
dnl C{VirtHost}$name
# * Define our true hostname (from our ISP) becomes \$j
dnl define(\`confDOMAIN_NAME', \`$name')dnl
#
# Make sure we accept mail as this name (for bounces, etc)
Cw$name
# Add our hostname to class G for genericstable support
CG$name
#------------------------------------------------------------
EOT
fi;
# Add smarthost information (if any)... But not if provider.m4 is a link !
file="/etc/mail/provider.m4";
#file="provider.m4";
if [ -f /etc/mail/peers/$provider -a ! -L $file ]; then
cat <<-EOT > $file;
LOCAL_CONFIG
#------------------------------------------------------------
#
# Dynamic updates from $0
#
# NOTE: the following line *MUST* be in /etc/mail/sendmail.mc
dnl include(\`/etc/mail/provider.m4')dnl
#
# Provider information from /etc/mail/peers/$provider
EOT
cat /etc/mail/peers/$provider >> $file;
cat <<-EOT >> $file;
#------------------------------------------------------------
EOT
fi;
#exit 0
# Build a new sendmail.cf from sendmail.mc, including our address.
# 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
m4 /etc/mail/sendmail.mc \
> /etc/mail/sendmail.cf.pnew;
chmod 0644 /etc/mail/sendmail.cf.pnew;
chown mail:mail /etc/mail/sendmail.cf.pnew;
mv -f /etc/mail/sendmail.cf.pnew /etc/mail/sendmail.cf;
# Purge any latent host status that might cause us to *NOT* send mail
AM='-Am';
if [ ! -f /usr/share/sendmail/cf/feature/msp.m4 ]; then
AM='';
fi;
sendmail $AM -bH -O Timeout.hoststatus=1s;
# Start/reload sendmail as needed
/etc/init.d/sendmail reload; # may be up, or down
# Process the sendmail queue (background so as to not defer other ip-up work)
runq &
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