#!/bin/bash

# Copyright 2007-2008, Piter Punk, São Paulo, Brazil
# Copyright 2017-2020,2022 Andrew Clemons, Wellington New Zealand
# Copyright 2022 Andrew Clemons, Tokyo Japan
# 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.

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=dropbear
VERSION=${VERSION:-2022.83}
SRCVERSION="DROPBEAR_$VERSION"
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$SRCVERSION
tar xvf $CWD/$PRGNAM-$SRCVERSION.tar.gz
cd $PRGNAM-$SRCVERSION
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

autoreconf -if

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --bindir=/usr/bin \
  --sbindir=/usr/sbin \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --mandir=/usr/man \
  --disable-syslog \
  --disable-utmp \
  --disable-utmpx \
  --disable-wtmp \
  --disable-wtmpx \
  --disable-pututline \
  --disable-pututxline \
  --build=$ARCH-slackware-linux

PROGRAMS="dropbear dbclient dropbearkey dropbearconvert scp"

make strip \
  PROGRAMS="$PROGRAMS" \
  MULTI=1 \
  SCPPROGRESS=1

make install \
  PROGRAMS="$PROGRAMS" \
  MULTI=1 \
  SCPPROGRESS=1 \
  DESTDIR=$PKG

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

WITH_SCP=${WITH_SCP:-no}

# 20220412 bkw: use relative symlinks.
for i in $PROGRAMS; do
  BIN=$PKG/usr/bin/$i
  SBIN=$PKG/usr/sbin/$i

  if [ "$i" = "scp" ] && [ "$WITH_SCP" != "yes" ] ; then
    [ -L $BIN  ] && rm -f $BIN  && ln -s dropbearmulti $BIN.dropbear
    [ -L $SBIN ] && rm -f $SBIN && ln -s ../bin/dropbearmulti $SBIN.dropbear
  else
    [ -L $BIN  ] && rm -f $BIN  && ln -s dropbearmulti $BIN
    [ -L $SBIN ] && rm -f $SBIN && ln -s ../bin/dropbearmulti $SBIN
  fi
done

mkdir -p $PKG/etc/rc.d
cat $CWD/rc.dropbear.new > $PKG/etc/rc.d/rc.dropbear.new

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a CHANGES LICENSE MULTI README SMALL $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

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

if [ "$WITH_SCP" = "yes" ] ; then
  cat << EOF >> $PKG/install/doinst.sh
if [ -e usr/bin/scp ]; then
  mv usr/bin/scp usr/bin/scp.openssh
fi
EOF
fi

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE