#!/bin/sh
# Set initial variables:
CWD=`pwd`
if [ "$TMP" = "" ]; then
  TMP=/tmp
fi
PKG=$TMP/package-tcpdump

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/_tcpdump.tar.gz

echo "+================+"
echo "| libpcap-0.6.1 |"
echo "+================+"
cd $TMP
tar xzvf $CWD/libpcap-0.6.1.tar.gz
cd libpcap-0.6.1
./configure --prefix=/usr i386-slackware-linux
make
cat libpcap.a > $PKG/usr/lib/libpcap.a
cat pcap.h > $PKG/usr/include/pcap.h
cat pcap-namedb.h > $PKG/usr/include/pcap-namedb.h
cat net/bpf.h > $PKG/usr/include/net/bpf.h
mkdir -p $PKG/usr/doc/libpcap-0.6.1
cp -a CHANGES FILES INSTALL README $PKG/usr/doc/libpcap-0.6.1
chown -R root.root $PKG/usr/doc/libpcap-0.6.1
mkdir -p $PKG/usr/man/man3
cat pcap.3 | gzip -9c > $PKG/usr/man/man3/pcap.3.gz

echo "+================+"
echo "| tcpdump-3.6.1 |"
echo "+================+"
cd $TMP
tar xzvf $CWD/tcpdump-3.6.1.tar.gz
cd tcpdump-3.6.1
./configure --prefix=/usr i386-slackware-linux
make
strip tcpdump
cat tcpdump > $PKG/usr/sbin/tcpdump
cat tcpdump.1 | gzip -9c > $PKG/usr/man/man1/tcpdump.1.gz
mkdir -p $PKG/usr/doc/tcpdump-3.6.1
cp -a CHANGES FILES INSTALL README $PKG/usr/doc/tcpdump-3.6.1
chown -R root.root $PKG/usr/doc/tcpdump-3.6.1

# Build the package:
cd $PKG
tar czvf $TMP/tcpdump.tgz .

# Warn of zero-length files:
find . -type f -size 0c | while read file ; do
  echo "WARNING: zero length file $file"
done
find . -type f -name '*.gz' -size 20c | while read file ; do
  echo "WARNING: possible empty gzipped file $file"
done

# Clean up the extra stuff:
if [ "$1" = "--cleanup" ]; then
  rm -rf $TMP/libpcap-0.6.1
  rm -rf $TMP/tcpdump-3.6.1
  rm -rf $PKG
fi