#!/bin/sh
#
# vpnc.SlackBuild
# 2015-04-18
#
# client for cisco vpn concentrator

PRGNAM=vpnc
VERSION=0.5.3

# automatically determine the architecture
if [ -z "$ARCH" ]; then
  case "$(uname -m)" in
    i686) ARCH=i686 ;;
    i?86) ARCH=i486 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$(uname -m) ;;
  esac
fi

BUILD=${BUILD:-3}
TAG=${TAG:-scr}

HOMEPAGE="http://www.unix-ag.uni-kl.de/~massar/vpnc/"
SOURCE="${PRGNAM}-${VERSION}.tar.gz"
DOWNLOAD="${HOMEPAGE}${SOURCE}"
MD5SUM="4378f9551d5b077e1770bbe09995afb3"

VPNCSCRIPT="vpnc-script"
VPNCSCRIPT_DOWNLOAD="http://git.infradead.org/users/dwmw2/vpnc-scripts.git/blob_plain/HEAD:/vpnc-script"
VPNCSCRIPT_MD5SUM="fd3120a98946c9ea8133ff003d1fae4a"

REQUIRES=""

MAINTAINER="Gernot Walzl"
EMAIL="gernot.walzl@gmx.at"

DESC="client for cisco vpn concentrator

${HOMEPAGE}"

DOCS="$(pwd)/$0 COPYING ChangeLog README TODO"

# EOF info


# set initial variables
CWD=$(pwd)
TMP=${TMP:-/tmp}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

# exit on error
set -e

# download the source if needed
if [ ! -f $CWD/$SOURCE ]; then
  wget -O $CWD/$SOURCE $DOWNLOAD || exit 1
fi
if [ ! -f $CWD/$VPNCSCRIPT ]; then
  wget -O $CWD/$VPNCSCRIPT $VPNCSCRIPT_DOWNLOAD || exit 1
fi

# check for correct source file
if [ "$(md5sum $CWD/$SOURCE | cut -f 1 -d ' ')" != "$MD5SUM" ]; then
  exit 1
fi
if [ "$(md5sum $CWD/$VPNCSCRIPT | cut -f 1 -d ' ')" != "$VPNCSCRIPT_MD5SUM" ]; then
  exit 1
fi

# extract the application source
cd $TMP || exit 1
tar xvf $CWD/$SOURCE || exit 1

# change to the application source directory
cd $PRGNAM-$VERSION || exit 1

# fix permissions
chown -R root:root .
chmod -R u+w,go+r-w,a-s .

# set configure options
if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
 elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
 elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
 else
  SLKCFLAGS="-O2"
fi

# configure
sed -i '/^#OPENSSL/s/^#//g' Makefile

# compile the source
make CFLAGS="$SLKCFLAGS" || exit 1

# install everything into the package directory
rm -rf $PKG
mkdir -p $PKG/install
make install DESTDIR=$PKG \
  PREFIX=/usr MANDIR=/usr/man DOCDIR=/usr/doc/$PRGNAM-$VERSION \
  || exit 1

mv $PKG/etc/vpnc/vpnc-script $PKG/etc/vpnc/vpnc-script.orig
install -m 755 $CWD/$VPNCSCRIPT $PKG/etc/vpnc/vpnc-script
sed -i 's#^elif \[ -x /sbin/netconfig \];#elif \[ -x /sbin/netconfig -a ! -e /etc/slackware-version \];#' \
  $PKG/etc/vpnc/vpnc-script

# add documentation
if [ "$DOCS" != "" ]; then
  mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
  cp -a $DOCS $PKG/usr/doc/$PRGNAM-$VERSION
  find $PKG/usr/doc/$PRGNAM-$VERSION -type f -exec chmod 644 {} \;
fi

# compress man pages
if [ -d $PKG/usr/man ]; then
  find $PKG/usr/man -type f -name "*.?" -exec gzip -9 {} \;
  for i in $(find $PKG/usr/man -type l -name "*.?") ; do
    ln -s $(readlink $i).gz $i.gz
    rm $i
  done
fi

# strip binaries
find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null

# add some description to the package
if [ "$DESC" != "" ]; then
  echo "$DESC" | sed 's/^/'$PRGNAM': /g' > $PKG/install/slack-desc
fi

# append dependency information to the package
if [ "$REQUIRES" != "" ]; then
  for REQ in $REQUIRES; do
    echo "$REQ" >> $PKG/install/slack-required
  done
fi

# build the package
cd $PKG
makepkg -l y -c n \
  $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz} \
  || exit 1

# make everything clean
cd $CWD
rm -rf $PKG
rm -rf $TMP/$PRGNAM-$VERSION