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#!/bin/sh

# Slackware build script for postgrey

# Copyright 2013 Christopher Walker Copperas Cove, TX
# 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=postgrey
VERSION=${VERSION:-1.37}
BUILD=${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}

# Need to run postgrey as anything other than root.  Use nobody account by
# default.  Change this to whatever user you want.
POSTGREYUSR=${POSTGREYUSR:-nobody}
POSTGREYGRP=${POSTGREYGRP:-nogroup}
POSTGREYUID=${POSTGREYUID:-98}
POSTGREYGID=${POSTGREYGID:-99}

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

do_exit() {
  echo ; echo "You must have the ${POSTGREYUSR} user and ${POSTGREYGRP} group
in"
  echo "order to build postgrey.  Sample lines to do so are below:"
  echo "# groupadd -g ${POSTGREYGID} ${POSTGREYGRP}"
  echo "# useradd -u ${POSTGREYUID} -d /var/lib/postgrey -s /bin/false -g ${POSTGREYGRP} ${POSTGREYUSR}"
  echo "Exiting..." ; echo ; exit 1
}

# Check for milter-greylist user and group availability
if ! getent group | grep -q ^${POSTGREYGRP}: 2>/dev/null ; then
  do_exit;
elif ! getent passwd | grep -q ^${POSTGREYUSR}: 2>/dev/null ; then
  do_exit;
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 {} \;

mkdir -p $PKG/usr/bin
cp -a policy-test postgrey contrib/postgreyreport $PKG/usr/bin

mkdir -p $PKG/etc/rc.d
sed -e s/%POSTGREYUSR%/$POSTGREYUSR/g \
    -e s/%POSTGREYGRP%/$POSTGREYGRP/g \
    $CWD/postgrey.conf > $PKG/etc/postgrey.conf.new
sed -e s/%POSTGREYUSR%/$POSTGREYUSR/g \
    -e s/%POSTGREYGRP%/$POSTGREYGRP/g \
    $CWD/rc.postgrey > $PKG/etc/rc.d/rc.postgrey.new

mkdir -p $PKG/var/lib/postgrey
chown ${POSTGREYUSR}:${POSTGREYGRP} $PKG/var/lib/postgrey

mkdir -p $PKG/etc/postfix
cp -a postgrey_whitelist_clients $PKG/etc/postfix/postgrey_whitelist_clients.new
cp -a postgrey_whitelist_recipients $PKG/etc/postfix/postgrey_whitelist_recipients.new

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a COPYING Changes README README.exim $PKG/usr/doc/$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

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