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#!/bin/sh

# Slackware build script for OpenDKIM

# Copyright 2015 Gerardo Zamudio <gerardo.zamudio@linux.com> Mexico City, Mexico
# 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=opendkim
VERSION=${VERSION:-2.10.3}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

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

CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i386" ]; then
  SLKCFLAGS="-O2 -march=i386 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$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

DKUSER=${DKUSER:-opendkim}
DKGROUP=${DKGROUP:-opendkim}

# Check the system user and group for opendkim:
if ! grep -q ^"$DKGROUP": /etc/group ; then
  echo "  You will need a dedicated group to run opendkim"
  echo "    # groupadd -g 305 $DKGROUP"
  echo "  should do the job."
  exit 1
fi

if ! grep -q ^"$DKUSER": /etc/passwd ; then
  echo "  You will need a dedicated user to run opendkim, something like"
  echo "    # useradd -r -u 305 -g $DKGROUP -d /var/run/opendkim/ -s /sbin/nologin -c 'OpenDKIM Milter' $DKUSER"
  exit 1
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
cd $PRGNAM-$VERSION
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 {} \;

if [ "${USE_MYSQL:-no}" == "yes" ]; then
  MYSQL="--with-sql-backend --with-odbx"
else
  MYSQL=""
fi

if [ "${USE_UNBOUND:-no}" == "yes" ]; then
  UNBOUND="--with-libevent --with-ldns --with-unbound"
else
  UNBOUND=""
fi

patch -p1 < $CWD/openssl_1.1.0_compat.patch
autoreconf -vif

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --mandir=/usr/man \
  --docdir=/usr/doc/$PRGNAM-$VERSION \
  --enable-static=no \
  --with-openssl \
  --with-libcurl \
  --build=$ARCH-slackware-linux \
  $MYSQL \
  $UNBOUND

make
make install-strip 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

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a FEATURES INSTALL KNOWNBUGS LICENSE* README* RELEASE_NOTES* $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/var/run/opendkim
chown $USER:$GROUP $PKG/var/run/opendkim/
install -m 0640 -D $PRGNAM/opendkim.conf.simple $PKG/etc/opendkim.conf.new
install -m 0755 -D $CWD/rc.opendkim $PKG/etc/rc.d/rc.opendkim.new

# Change KeyFile to match rc.opendkim
sed -i 's|^KeyFile.*|KeyFile /etc/opendkim/keys/default.private|' $PKG/etc/opendkim.conf.new

echo "UserID $DKUSER:$DKGROUP" >> $PKG/etc/opendkim.conf.new

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 $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}