#!/bin/sh

# Set initial variables:
CWD=`pwd`
if [ "$TMP" = "" ]; then
  TMP=$CWD
fi
PKG=$TMP/package-dhcp

VERSION=4.2.5
ARCH=i386
BUILD=1

if [ ! -d $TMP ]; then
  mkdir -p $TMP # location to build the source
fi
if [ ! -d $PKG ]; then
  mkdir -p $PKG # place for the package to be built
fi

# Explode the package framework:
cd $PKG
explodepkg $CWD/_dhcp.tar.gz

echo "+=============+"
echo "| dhcp-$VERSION |"
echo "+=============+"
cd $TMP
tar xzvf $CWD/dhcp-$VERSION.tar.gz
cd dhcp-$VERSION

# Borrowed from https://github.com/ipfire/ipfire-3.x/tree/master/dhcp/patches
# Apply patches in a special order.
PATCHES="dhcp-4.2.5-remove-bind.patch \
	dhcp-4.2.4-P1-remove-dst.patch \
	dhcp-4.2.0-errwarn-message.patch \
	dhcp-4.2.0-release-by-ifup.patch \
	dhcp-4.2.4-unicast-bootp.patch \
	dhcp-4.2.0-default-requested-options.patch \
	dhcp-4.2.2-xen-checksum.patch \
	dhcp-4.2.5-manpages.patch \
	dhcp-4.2.0-garbage-chars.patch \
	dhcp-4.2.0-add_timeout_when_NULL.patch \
	dhcp-4.2.4-64_bit_lease_parse.patch \
	dhcp-4.2.0-logpid.patch \
	dhcp-4.2.4-UseMulticast.patch \
	dhcp-4.2.4-improved-xid.patch \
	dhcp-4.2.5-systemtap.patch \
	dhcp-4.2.3-P2-log_perror.patch \
	dhcp-4.2.4-getifaddrs.patch \
	dhcp-4.2.4-send_release.patch \
	dhcp-4.2.5-rfc5970-dhcpv6-options-for-network-boot.patch \
	dhcp-4.2.4-failOverPeer.patch \
	dhcp-4.2.5b1-atf-pkgconfig.patch \
	dhcp-4.2.4-P1-interval.patch \
	dhcp-4.2.4-P2-conflex-do-forward-updates.patch \
	dhcp-4.2.4-P2-dupl-key.patch \
	dhcp-4.2.5-next-server.patch"

for P in $PATCHES ; do
	echo "Applying patch $P"
	patch -p1 < $CWD/ipfire-3.x/dhcp/patches/$P || exit 
done

#patch -p1 < $CWD/dhcp-4.2.5-remove-bind.patch || exit 1
#patch -p1 < $CWD/dhcp-4.2.4-getifaddrs.patch || exit 1

export MAKEFLAGS="-j10"
 ./configure  --enable-ipv4-pktinfo \
	--disable-static \
	--with-srv-lease-file=/var/state/dhcp/dhcpd.leases \
	--with-srv6-lease-file=/var/state/dhcp/dhcpd6.leases \
	--with-cli-lease-file=/var/state/dhcp/dhclient.leases \
	--with-cli6-lease-file=/var/state/dhcp/dhclient6.leases  || exit 1

make  DEBUG="-O2 -march=i386 -mcpu=i686" || exit 1
mkdir -p $PKG/usr/doc/dhcp-$VERSION
cp -a ANONCVS CHANGES COPYRIGHT README RELNOTES $PKG/usr/doc/dhcp-$VERSION
mkdir -p $PKG/usr/doc/dhcp-$VERSION/examples
cp -a client/dhclient.conf server/dhcpd.conf \
  $PKG/usr/doc/dhcp-$VERSION/examples
chown -R root.root $PKG/usr/doc/dhcp-$VERSION
cat << EOF > $PKG/etc/dhcpd.conf.new
# dhcpd.conf
#
# Configuration file for ISC dhcpd (see 'man dhcpd.conf')
#
allow unknown-clients;
ddns-updates off;

subnet 192.168.0.0 netmask 255.255.255.0 {
  range 192.168.0.100 192.168.0.254;
  option domain-name-servers 192.168.0.1,192.168.0.1;
  option routers 192.168.0.1;
  option domain-name "";
}
EOF

cat << EOF > $PKG/etc/dhclient.conf.new
# dhclient.conf
#
# Configuration file for ISC dhclient (see 'man dhclient.conf')
#
EOF

mkdir -p $PKG/service/dhcpd
cat << EOF > $PKG/service/dhcpd/run
#!/bin/bash
exec /usr/sbin/dhcpd -f
EOF

mkdir -p $PKG/etc/postinst.d
cp $CWD/post.dhcp $PKG/etc/postinst.d || exit 1
chmod +x $PKG/etc/postinst.d/post.dhcp || exit 1

chmod +x $PKG/service/dhcpd/run
cat client/scripts/linux > $PKG/sbin/dhclient-script
chmod 700 $PKG/sbin/dhclient-script
( cd work.linux-2.2
  strip server/dhcpd client/dhclient relay/dhcrelay
  cat server/dhcpd > $PKG/usr/sbin/dhcpd
  cat relay/dhcrelay > $PKG/usr/sbin/dhcrelay
  cat client/dhclient > $PKG/sbin/dhclient )
mkdir -p $PKG/usr/man/man5
mkdir -p $PKG/usr/man/man8
for dir in client server ; do
  cd $dir
  for file in *.5 ; do
    cat $file | sed -e "s#ETCDIR#/etc#g" -e "s#DBDIR#/var/db#g" \
      -e "s#RUNDIR#/var/run#g" | gzip -9c > $PKG/usr/man/man5/$file.gz
  done
  for file in *.8 ; do
    cat $file | sed -e "s#ETCDIR#/etc#g" -e "s#DBDIR#/var/db#g" \
      -e "s#RUNDIR#/var/run#g" | gzip -9c > $PKG/usr/man/man8/$file.gz
  done
  cd ..
done
cat relay/dhcrelay.8 | sed -e "s#ETCDIR#/etc#g" -e "s#DBDIR#/var/db#g" \
  -e "s#RUNDIR#/var/run#g" | gzip -9c > $PKG/usr/man/man8/dhcrelay.8.gz
mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

# Build the package:
cd $PKG
NAME=`echo $0|cut -f2 -d'.'`
makepkg -l y -c n $CWD/$NAME.pkg > /dev/null &&
echo $VERSION > $CWD/$NAME.version &&
arch > $CWD/$NAME.arch &&

# Clean up the extra stuff:
if [ ! "$1" = "--nocleanup" ]; then
 rm -rf $TMP/dhcp-$VERSION
 rm -rf $PKG
fi