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#!/bin/sh
# $Id: dropbear.Slackbuild,v 1.7 2008/03/13 13:42:33 root Exp root $
#  Copyright 2007, Piter Punk, São Paulo, Brazil 
# Adaptations for Slackware installer:
#  Copyright 2008, Eric Hameleers, Eindhoven, Netherlands
# 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.

PRGNAM=dropbear
VERSION=20171018_fa3b0dd3
BUILD=${BUILD:-1}
TAG=${TAG:-''}

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

# The programs we want to have as symlinks to dropbearmulti binary:
PROGS="dropbear dbclient dropbearkey dropbearconvert scp ssh"

# We build for the Slackware installer:
#  This means, installing into /bin and /sbin ;
#  and adding symlinks for ssh and scp without worry
#  about overwriting any pre-existing binaries.

CWD=$(pwd)
TMP=${TMP:-/tmp}
PKG=$TMP/pkg-$PRGNAM

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

rm -rf $PKG
mkdir -p $TMP $PKG
cd $TMP || exit 1
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.?z || exit 1
cd $PRGNAM-$VERSION || exit 1

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 {} \;

# Patch to allow empty passwords (used in Slackware's installer):
patch -p1 < $CWD/dropbear_emptypass.patch || exit 1

autoconf || exit 1
autoheader || exit 1

cp $CWD/localoptions.h .

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/ \
  --mandir=/usr/man \
  --disable-syslog \
  --disable-utmp \
  --disable-utmpx \
  --disable-wtmp \
  --disable-wtmpx \
  --disable-pututline \
  --disable-pututxline \
  --build=$ARCH-slackware-linux

make PROGRAMS="$PROGS" MULTI="1" SCPPROGRESS="1" || exit 1
mkdir -p $PKG/sbin $PKG/bin $PKG/lib
make DESTDIR=$PKG MULTI="1" install || exit 1

# Copy manpages to package
mkdir -p $PKG/usr/man/man1
mkdir -p $PKG/usr/man/man8
cp dbclient.1 $PKG/usr/man/man1
cp dropbearkey.8 dropbear.8 $PKG/usr/man/man8

if [ -d $PKG/usr/man ]; then
  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
fi

# Link binaries to dropbearmulti since the 'make install' does not do that
# if we build a multicall binary.
(cd $PKG/bin
 ln -s ../bin/dropbearmulti ../sbin/dropbear
 for i in $(echo $PROGS | sed -e 's/dropbear //') ; do
   ln -s dropbearmulti $i
 done
)

make install DESTDIR=$PKG

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | \
  grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

mkdir -p $PKG/etc/rc.d $PKG/etc/dropbear
cp $CWD/rc.dropbear.new $PKG/etc/rc.d/ # doinst.sh will handle .new

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a CHANGES INSTALL LICENSE MULTI README SMALL TODO \
  $PKG/usr/doc/$PRGNAM-$VERSION

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

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