8.33. CrackLib-2.10.3

8.33.2. Installation of CrackLib

Create the PKGBUILD for the Cracklib package with the following commands:

mkdir /sources/cracklib
cd /sources/cracklib
cat > PKGBUILD << "REALEOF"
# Maintainer: Linux From Scratch <lfs-dev@lists.linuxfromscratch.org>

pkgname="cracklib"
pkgver="2.10.3"
pkgrel="1"
pkgdesc="The CrackLib package contains a library used to enforce strong passwords by comparing user selected passwords to words in chosen word lists." 
arch=('x86'
      'x86_64')
url="http://www.gnu.org/software/cracklib"
license=('GPLv3')
depends=('glibc'
         'linux-pam')
makedepends=('bash'
             'binutils'
             'coreutils'
             'gcc'
             'glibc'
             'grep'
             'linux-pam'
             'shadow'
             'sed')
source=("https://github.com/cracklib/cracklib/releases/download/v2.10.3/cracklib-2.10.3.tar.xz"
        "https://github.com/cracklib/cracklib/releases/download/v2.10.3/cracklib-words-2.10.3.xz")
md5sums=('e8ea2b86de774fc09fdd0f2829680b19'
         'f27804022dbf2682a7f7c353317f9a53')
install="cracklib.install"
backup=("usr/share/dict/cracklib-extra-words")
options=('emptydirs')

prepare(){
  cd "${pkgname}-${pkgver}"
  # Remove a meaningless warning
  sed -i '/skipping/d' util/packer.c
  # Fix build with newer Python
  sed -i '15209 s/.*/am_cv_python_version=3.13/' configure
}

build(){
  cd "${pkgname}-${pkgver}"
  PYTHON=python3 CPPFLAGS=-I/usr/include/python3.10 \
  ./configure --prefix=/usr    \
              --disable-static \
              --with-default-dict=/usr/lib/cracklib/pw_dict
  make
}

package(){
  cd "${pkgname}-${pkgver}"
  make DESTDIR="${pkgdir}" install
  install -v -m644 -D "${srcdir}/cracklib}-words-${pkgver}.bz2" \
                      "${pkgdir}/usr/share/dict/cracklib-words.bz2"
  bzip2 -d -v "${pkgdir}/usr/share/dict/cracklib-words.bz2"
  ln -v -sf cracklib-words "${pkgdir}/usr/share/dict/words"
  echo "linuxfromscratch" >> "${pkgdir}/usr/share/dict/cracklib-extra-words"
  install -v -m755 -d "${pkgdir}/usr/lib/cracklib"
}
REALEOF

We have also listed an install file in the above PKGBUILD that will install the default dictionary and create our combined wordlists:

cat > cracklib.install << "REALEOF"
post_install(){
  echo $(hostname) >>  /usr/share/dict/cracklib-extra-words
  create-cracklib-dict /usr/share/dict/cracklib-words \
                       /usr/share/dict/cracklib-extra-words
}

post_upgrade(){
  post_install
}
REALEOF

Prepare the build directory for the pacman user and build the package:

chown -R root:pacman .
chmod 2775 .
chmod 664 PKGBUILD
su pacman -c 'makepkg -L --nodeps'

Add the newly created package to the central package repository:

repo-add /srv/pacman/repos/LFS/LFS.db.tar.xz \
         /srv/pacman/repos/LFS/cracklib-2.10.3-1-$(uname -m).pkg.tar.xz

Update the local cache and install the Cracklib package:

pacman -Syu
pacman -S cracklib --overwrite \* -dd --noconfirm

Finally, copy the source files into the source repository and clean up the build directory:

mkdir /srv/pacman/source/LFS/cracklib
cp PKGBUILD /srv/pacman/source/LFS/cracklib
cp cracklib.install /srv/pacman/source/LFS/cracklib
cd /sources
rm -rf cracklib