#!/bin/sh
# 
# Install Distcc with aptitude or apt-get, run the script and 
# copy the init-file to /etc/init.d/distcc
#
# www.northernsecurity.net
#
# updated 050527
#


CHROOTDIR="/var/chroot/distccd"
USERNAME="distccd"
GROUPNAME="nogroup"

BINARY="/usr/bin/distccd"
GCC="/usr/bin/gcc*"
GCCVERS="3.3"
CPP="/usr/bin/cpp-$GCCVERS"
AS="/usr/bin/as"
MAKE="/usr/bin/make"
G="/usr/bin/g++-$GCCVERS"
CC1PATH="/usr/lib/gcc-lib/i486-linux/3.3.5"
CC1="$CC1PATH/cc1"

echo "Creating directories in $CHROOTDIR"
mkdir -p $CHROOTDIR/usr/lib/i686/cmov/ $CHROOTDIR/lib/tls $CHROOTDIR/etc/default \
	 $CHROOTDIR/dev $CHROOTDIR/var/log/ $CHROOTDIR/tmp $CHROOTDIR/usr/{bin,sbin} \
	 $CHROOTDIR/var/run/distccd $CHROOTDIR/usr/lib/gcc-lib/i486-linux/3.3.5/
	 
echo "Creating devices"
mknod -m 0444 $CHROOTDIR/dev/random c 1 8
mknod -m 0444 $CHROOTDIR/dev/urandom c 1 9
mknod -m 0666 $CHROOTDIR/dev/null c 1 3

echo "Adding $USERNAME to $CHROOTDIR/etc/passwd and group"
grep $USERNAME /etc/passwd > $CHROOTDIR/etc/passwd
egrep '$GROUPNAME|adm' /etc/group > $CHROOTDIR/etc/group

echo "Copying system files" 
cp /etc/{nsswitch.conf,host.conf,resolv.conf,hosts,localtime} $CHROOTDIR/etc
cp /lib/{libnsl*,libnss_*,libresolv*} $CHROOTDIR/lib
cp /lib/{*.so,*.so.*}  $CHROOTDIR/lib
cp /lib/tls/{*.so,*.so.*} $CHROOTDIR/lib/tls

echo "Copying dependencies"
LDDRESULT=`ldd {$BINARY,$GCC,$G,$AS,$MAKE,$CPP,$CC1} | awk '{print $3}'`
	for i in $LDDRESULT; do
		cp $i $CHROOTDIR$i
        done

echo "Copying binaries and config files"
	for i in {$BINARY,$GCC,$G,$AS,$MAKE,$CPP}; do
		cp -L $i $CHROOTDIR$i
	done

cp -Rp $CC1PATH/* $CHROOTDIR$CC1PATH/

cd $CHROOTDIR/usr/bin
ln -s gcc cc
rm {gcc,gccbug}
ln -s gcc-$GCCVERS gcc
ln -s gccbug-$GCCVERS gccbug
ln -s g++-$GCCVERS g++
ln -s g++-$GCCVERS c++
ln -s cpp-$GCCVERS cpp

touch $CHROOTDIR/var/log/distccd.log
touch $CHROOTDIR/var/run/distccd/distccd.pid

mv /var/log/distccd.log /var/log/distccd.`date "+%s"`.log

cd /var/log/
ln -s $CHROOTDIR/var/log/distccd.log

echo "Setting permissions"
chown $USERNAME:adm $CHROOTDIR/var/log/distccd.log
chown $USERNAME:adm $CHROOTDIR/var/run/distccd
chmod 0444 $CHROOTDIR/etc/{group,host.conf,hosts,localtime,nsswitch.conf}
chmod 0444 $CHROOTDIR/etc/{passwd,resolv.conf}
chmod 1777 $CHROOTDIR/tmp

echo "Done"
echo ""
echo "  Don't forget to modify your init-script"
echo ""