#!/bin/sh
# Heavily based on the Slackware 13.0 SlackBuild
# chkrootkit
# http://www.chkrootkit.org/
# The Italian Slackware Community
# http://www.slacky.eu/
# Packager ulisse89 (riccardo.trebbi89 AT gmail DOT com)

NAME=chkrootkit	
VERSION=${VERSION:-0.49}
ARCH=${ARCH:-i486}
BUILD=${BUILD:-2}
TAG=${TAG:-uls}	

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

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
fi

set -e # Exit on most errors

rm -rf $PKG
mkdir -p $TMP $PKG
cd $TMP
rm -rf $NAME-$VERSION
tar xvf $CWD/$NAME.tar.gz
cd $NAME-$VERSION
chown -R root:root .
find . \
 \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
 -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
 -exec chmod 644 {} \;

# Since it is a really simple program, it does not need the configure command
make sense

# Since it does not have a 'make install' option, we have to copy files manually
mkdir -p $PKG/usr/sbin/
mkdir -p $PKG/usr/lib/$NAME
find $TMP/$NAME-$VERSION -executable -type f -exec cp -a {} $PKG/usr/lib/$NAME \;

cat > $PKG/usr/sbin/$NAME << EOF
#!/bin/sh
# This script simply move to chkrootkit directory and executes it

# Exit on most errors
set -e

# Execute the program in his base directory
cd /usr/lib/$NAME
./$NAME
EOF

chmod 755 $PKG/usr/sbin/$NAME

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

# Copy program documentation into the package
mkdir -p $PKG/usr/doc/$NAME-$VERSION
cp -a \
  ACKNOWLEDGMENTS COPYRIGHT README.* README \
  $PKG/usr/doc/$NAME-$VERSION
cat $CWD/$NAME.SlackBuild > $PKG/usr/doc/$NAME-$VERSION/$NAME.SlackBuild

# Copy the slack-desc into ./install
mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

# Call requiredbuilder
requiredbuilder -v -y -s $CWD $PKG

# Make the package
cd $PKG
/sbin/makepkg -l y -c n $CWD/$NAME-$VERSION-$ARCH-$BUILD$TAG.txz

if [ "$1" = "--cleanup" ]; then
 rm -rf $TMP
fi