#!/bin/sh

# Copyright 2009  Tom Canich, State College, Pennsylvania, USA
# Copyright 2015-2017  Willy Sudiarto Raharjo <willysr@slackbuilds.org>
# Copyright 2017, 2018, 2019, 2020  Patrick J. Volkerding, Sebeka, MN, USA
# 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)

PKGNAM=krb5
VERSION=${VERSION:-$(echo $PKGNAM-*.tar.?z | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
BUILD=${BUILD:-2}

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

NUMJOBS=${NUMJOBS:-" -j7 "}

TMP=${TMP:-/tmp}
PKG=$TMP/package-$PKGNAM

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

# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PKGNAM-$VERSION-$ARCH-$BUILD.txz"
  exit 0
fi

rm -rf $PKG
mkdir -p $TMP $PKG
cd $TMP
rm -rf $PKGNAM-$VERSION
tar xvf $CWD/$PKGNAM-$VERSION.tar.?z || exit 1
cd $PKGNAM-$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 {} \+

sed -i "/KRB5ROOT=/s/\/local//" src/util/ac_check_krb5.m4

cat $CWD/d775c95af7606a51bf79547a94fa52ddd1cb7f49.patch | patch -p1 --verbose || exit 1

cd src

# Fix configure to support shared libraries for PPC64LE and _REENTRANT for or1k:
if [ -x /usr/share/libtool/build-aux/fix_configure ]; then
  /usr/share/libtool/build-aux/fix_configure  
fi

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
CPPFLAGS+=" -I/usr/include/et" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --sysconfdir=/etc \
  --localstatedir=/var/kerberos \
  --runstatedir=/var/run \
  --mandir=/usr/man \
  --enable-dns-for-realm \
  --with-ldap \
  --with-system-et \
  --with-system-ss \
  --enable-pkinit \
  --with-tls-impl=openssl \
  --with-system-verto=no \
  --with-prng-alg=os \
  --build=$ARCH-slackware-linux || exit 1

# Build:
make $NUMJOBS || make || exit 1

# Double check for proper runstatedir setting:
if ! grep -q /var/run/krb5kdc include/osconf.h ; then
  echo "FATAL: runstatedir not set properly: $(grep KDC_RUN_DIR include/osconf.h)"
  exit 1
fi

# Install:
make install DESTDIR=$PKG || exit 1

# Don't ship .la files:
rm -f $PKG/{,usr/}lib${LIBDIRSUFFIX}/*.la

# Fix perms on shared objects:
find $PKG/usr/lib${LIBDIRSUFFIX} -name "*.so*" -exec chmod 755 "{}" \+

# Install init scripts:
mkdir -p $PKG/etc/rc.d
cp -a $CWD/conf/rc.kadmind $PKG/etc/rc.d/rc.kadmind.new
cp -a $CWD/conf/rc.kpropd $PKG/etc/rc.d/rc.kpropd.new
cp -a $CWD/conf/rc.krb5kdc $PKG/etc/rc.d/rc.krb5kdc.new
chown root:root $PKG/etc/rc.d/*
chmod 644 $PKG/etc/rc.d/*

# Install default options:
mkdir -p $PKG/etc/default
cp -a $CWD/conf/kadmind $PKG/etc/default/kadmind.new
cp -a $CWD/conf/kpropd $PKG/etc/default/kpropd.new
cp -a $CWD/conf/krb5kdc $PKG/etc/default/krb5kdc.new
chown root:root $PKG/etc/default/*
chmod 644 $PKG/etc/default/*

# Install example config files:
mkdir -p $PKG/etc
cp -a $CWD/conf/krb5.conf.example $PKG/etc/krb5.conf.example
chown root:root $PKG/etc/krb5.conf.example
chmod 644 $PKG/etc/krb5.conf.example
mkdir -p /var/kerberos/krb5kdc
cp -a $CWD/conf/kdc.conf.example $PKG/var/kerberos/krb5kdc/kdc.conf.example
chown root:root $PKG/var/kerberos/krb5kdc/kdc.conf.example
chmod 644 $PKG/var/kerberos/krb5kdc/kdc.conf.example

# Move examples to the documentation directory:
mkdir -p $PKG/usr/doc/${PKGNAM}-${VERSION}/examples
mv $PKG/usr/share/examples/krb5/* $PKG/usr/doc/${PKGNAM}-${VERSION}/examples
rmdir $PKG/usr/share/examples/krb5 $PKG/usr/share/examples 2> /dev/null

# Move some libraries to $PKG/lib${LIBDIRSUFFIX}:
mkdir -p $PKG/lib${LIBDIRSUFFIX}
( cd $PKG/usr/lib${LIBDIRSUFFIX}
  for lib in libgssapi_krb5 libkrb5 libk5crypto libkrb5support ; do
    mv ${lib}.so.?.* ../../lib${LIBDIRSUFFIX}
    ln -sf ../../lib${LIBDIRSUFFIX}/${lib}.so.?.* .
    cp -a  ${lib}.so.? ../../lib${LIBDIRSUFFIX}
  done
)

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

rm -rf $PKG/usr/man/cat{1,5,8}

# Compress and link manpages, if any:
if [ -d $PKG/usr/man ]; then
  ( cd $PKG/usr/man
    for manpagedir in $(find . -type d -name "man*") ; do
      ( cd $manpagedir
        for eachpage in $( find . -type l -maxdepth 1 | grep -v '\.gz$') ; do
          ln -s $( readlink $eachpage ).gz $eachpage.gz
          rm $eachpage
        done
        gzip -9 *.?
      )
    done
  )
fi

# krb5 ships with a ton of docs, but for now we'll just include these:
mkdir -p $PKG/usr/doc/$PKGNAM-$VERSION
  cp -a \
  ../NOTICE* ../README* \
  $PKG/usr/doc/$PKGNAM-$VERSION

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

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