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#!/bin/bash

# Slackware build script for John the Ripper

# Written by Murat D. Kadirov <banderols@gmail.com>

# 20/Nov/2011 * Updated for version 1.7.8 and jambo-patch 8
#               Thanks a lot Kent Fritz for patch with many improvements
# 19/Dec/2011 * Updated for version 1.7.9 and jambo-patch 5
# 10/Nov/2013 * Updated for version 1.8.0
# 24/Feb/2015 * Added support for AVX instructions --  thanks to Matthijs
#               Schuurman for the patch
#               Also removed "MERGEWORDS" option, as it's harmful for cracking
#               slow hashes.

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

PRGNAM=john
VERSION=${VERSION:-1.9.0}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i486 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
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 "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

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

if [ "$ARCH" = "i486" ]; then
  if grep -q ^flags.*avx /proc/cpuinfo; then
    TARGET=linux-x86-avx
  elif grep -q ^flags.*sse2 /proc/cpuinfo; then
    TARGET=linux-x86-sse2
  elif grep -q ^flags.*mmx /proc/cpuinfo; then
    TARGET=linux-x86-mmx
  else
    TARGET=linux-x86-any
  fi
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  if grep -q ^flags.*avx /proc/cpuinfo; then
    TARGET=linux-x86-64-avx2
  elif grep -q ^flags.*avx /proc/cpuinfo; then
    TARGET=linux-x86-64-avx
  else
    TARGET=linux-x86-64
  fi
  LIBDIRSUFFIX="64"
else
  TARGET=generic
  LIBDIRSUFFIX=""
fi

set -e
rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.xz

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 \
 \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
 -exec chmod 644 {} \;

mkdir -p $PKG/usr/share/john
cp -a run/* $PKG/usr/share/john
rm $PKG/usr/share/john/mailer

make -j1 -C src clean $TARGET CFLAGS="-DJOHN_SYSTEMWIDE=1 -c -Wall -O2 -fomit-frame-pointer"

mkdir -p $PKG/usr/bin
cp -a run/$PRGNAM run/mailer $PKG/usr/bin
ln -s $PRGNAM $PKG/usr/bin/unafs
ln -s $PRGNAM $PKG/usr/bin/unique
ln -s $PRGNAM $PKG/usr/bin/unshadow

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a doc/* $PKG/usr/doc/$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

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