#!/bin/sh

# Copyright 2008  Patrick J. Volkerding, Sebeka, MN, USA
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''AS IS'' AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

VERSION=4.0.0
LIBVER=1.0.0
ARCH=${ARCH:-x86_64}
BUILD=${BUILD:-1}

NUMJOBS=${NUMJOBS:--j6}

CWD=$(pwd)
TMP=${TMP:-/tmp}
PKG=$TMP/package-tcpdump

mkdir -p $TMP $PKG

echo "+================+"
echo "| libpcap-$LIBVER |"
echo "+================+"
cd $TMP
rm -rf libpcap-$LIBVER
tar xvf $CWD/libpcap-$LIBVER.tar.gz
cd libpcap-$LIBVER
find . -type d -name CVS -exec rm -rf {} \;
chown -R root:root .
CFLAGS="$(getconf LFS_CFLAGS)" \
./configure \
  --prefix=/usr \
  --mandir=/usr/man \
  --docdir=/usr/doc/libpcap-$LIBVER \
  --enable-ipv6 \
  --build=$ARCH-pc-linux
make $NUMJOBS || make || exit 1
mkdir -p $PKG/usr/bin	# otherwise it errors out on install
make install DESTDIR=$PKG
mkdir -p $PKG/usr/doc/libpcap-$LIBVER
cp -a \
  CHANGES CREDITS FILES INSTALL.txt LICENSE README README.linux TODO VERSION \
  $PKG/usr/doc/libpcap-$LIBVER

echo "+================+"
echo "| tcpdump-$VERSION |"
echo "+================+"
cd $TMP
rm -rf tcpdump-$VERSION
tar xvf $CWD/tcpdump-$VERSION.tar.gz
cd tcpdump-$VERSION
find . -type d -name CVS -exec rm -rf {} \;
chown -R root:root .
./configure \
  --prefix=/usr \
  --mandir=/usr/man \
  --docdir=/usr/doc/tcpdump-$VERSION \
  --enable-ipv6 \
  --build=$ARCH-pc-linux
make $NUMJOBS || make || exit 1
make install DESTDIR=$PKG
mkdir -p $PKG/usr/doc/tcpdump-$VERSION
cp -a \
  CHANGES FILES INSTALL README \
  $PKG/usr/doc/tcpdump-$VERSION

( cd $PKG
  find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
  find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
)

# Compress man pages
( cd $PKG/usr/man
  find . -type f -exec gzip -9 {} \;
  for i in $(find . -type l) ; do ln -s $(readlink $i).gz $i.gz ; rm $i ; done
)

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $TMP/tcpdump-$VERSION-$ARCH-$BUILD.txz

# Clean up the extra stuff:
if [ "$1" = "--cleanup" ]; then
  rm -rf $TMP/libpcap-$LIBVER
  rm -rf $TMP/tcpdump-$VERSION
  rm -rf $PKG
fi