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#! /bin/sh
#
# Copyright (C) 1997,1998,1999 Dimitrios P. Bouras
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
# For author contact information, look in the README file.
# The following are modified automatically by 'make install'
#------------------------------------------------------------
NetGroup=dialout
XispID=/usr/lib/xisp/xispid
# First setup all variables passed on from pppd
#-----------------------------------------------
interface=$PPP_IFACE
device=$PPP_TTY
speed=$PPP_SPEED
localIP=$PPP_LOCAL
remoteIP=$PPP_REMOTE
ipparam=$PPP_IPPARAM
# Bail out if no ipparam
#------------------------
if [ "$ipparam"x = x ]; then
exit 0
fi
# Then parse the ipparam argument string passed on from xisp
#------------------------------------------------------------
pipefname=`echo $ipparam | sed -e 's/\:.*$//'`
temp=`echo $ipparam | sed -e 's/^[^:]*\://'`
ISPname=`echo $temp | sed -e 's/\:.*$//'`
temp=`echo $temp | sed -e 's/^[^:]*\://'`
DNS1=`echo $temp | sed -e 's/\:.*$//'`
DNS2=`echo $temp | sed -e 's/^.*\://'`
# Make sure that the user who started pppd is indeed a member of $NetGroup
# If not, then this is most probably a system security attack, so bail out
# Also run xispid security checks on the named-pipe file name and modes
#--------------------------------------------------------------------------
userOK=0
for gname in `$XispID -rGn`; do
if [ "$gname" = "$NetGroup" ]; then
userOK=1
fi
done
if [ $userOK ]; then
if ! `$XispID -c $pipefname`; then
exit 0
fi
else
exit 0
fi
# The following command redirects all stdout/stderr output (from this
# script or from any command run within it) to the xisp browser window
#----------------------------------------------------------------------
exec 1>>$pipefname 2>&1
# Remove the lines in /etc/resolv.conf for the DNS entries passed from xisp
#---------------------------------------------------------------------------
umask 022
if [ "$DNS1"x != x ]; then
grep -v "xisp primary DNS line" /etc/resolv.conf > /etc/resolv.conf.new
mv -f /etc/resolv.conf.new /etc/resolv.conf
echo "DNS $DNS1 removed"
fi
if [ "$DNS2"x != x ]; then
grep -v "xisp secondary DNS line" /etc/resolv.conf > /etc/resolv.conf.new
mv -f /etc/resolv.conf.new /etc/resolv.conf
echo "DNS $DNS2 removed"
fi
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