#!/bin/bash
ulimit -s unlimited
shopt -s extglob

# shadow.SlackBuild
#
# Copyright 2005-2010  Patrick J. Volkerding, Sebeka, Minnesota, 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.

# Record toolchain & other info for the build log:
slackbuildinfo

# Paths to skeleton port's source & real Slackware source tree:
slackset_var_cwds

# Temporary build locations:
export TMPBUILD=$TMP/build-$PKGNAM
export PKG=$TMP/package-$PKGNAM
mkpkgdirs # Delete & re-create temporary directories then cd into $TMPBUILD

# Extract source:
tar xvvf $CWD/$PKGNAM-$VERSION.tar.!(*sign|*asc|*sig)
cd $PKGNAM-$VERSION || exit 1
slackhousekeeping

# Apply some patches taken from the svn trunk that
# fix some of the more serious bugs in 4.1.4.3:
for patch in $CWD/patches/*.diff.gz ; do
  zcat $patch | patch -p0 --verbose || exit 1
done

# Relax the restrictions on "su -c" when it is used to become root.
# It's not likely that root is going to try to inject commands back into
# the user's shell to hack it, and the unnecessary restriction is causing
# breakage:
zcat $CWD/shadow.CVE-2005-4890.relax.diff.gz | patch -p1 --verbose || exit 1

# Even if gethostname() returns the FQDN (long hostname), just display the
# short version up to the first '.' on the login prompt:
zcat $CWD/shadow.login.display.short.hostname.diff.gz | patch -p1 --verbose || exit 1

# Add missing file:
if [ ! -r man/login.defs.d/HOME_MODE.xml ]; then
  zcat $CWD/HOME_MODE.xml.gz > man/login.defs.d/HOME_MODE.xml
fi

# Choose correct options depending on whether PAM is installed:
if [ -L /lib${LIBDIRSUFFIX}/libpam.so.? ]; then
   PAM_OPTIONS="--with-libpam"
   unset SHADOW_OPTIONS
   # By default, use the shadow version of /bin/su:
   SHIP_SU=${SHIP_SU:-YES}
else
   unset PAM_OPTIONS
   SHADOW_OPTIONS="--enable-shadowgrp --without-libcrack"
   # By default, use the shadow version of /bin/su:
   SHIP_SU=${SHIP_SU:-YES}
fi


# Configure:
[ ! -r ./configure ] && ./autogen.sh
CFLAGS="$SLKCFLAGS" \
./configure \
   --prefix=/usr \
   --sysconfdir=/etc \
   --mandir=/usr/man \
   --sbindir=/usr/sbin \
   --bindir=/usr/bin \
   --docdir=/usr/doc/shadow-$VERSION \
   --enable-man \
   --disable-shared \
   --with-group-name-max-length=32 \
   --enable-subordinate-ids \
   $SHADOW_OPTIONS \
   $PAM_OPTIONS \
   --build=${SLK_ARCH_BUILD} || failconfig

# Build:
make $NUMJOBS || make || failmake

# Install into package framework:
make install DESTDIR=$PKG || failinstall

# Fix user group = 100:
zcat $CWD/useradd.gz > $PKG/etc/default/useradd
mv -fv $PKG/etc/default/useradd $PKG/etc/default/useradd.new

# Put some stuff back in "old" locations and make symlinks for compat
mkdir -p $PKG/bin $PKG/sbin
( cd $PKG/usr/bin
  mv groups ../../bin
  mv login ../../bin
  mv su ../../bin
  mv faillog ../sbin
  mv lastlog ../sbin
  ln -s ../sbin/faillog
  ln -s ../sbin/lastlog )
mv -fv $PKG/usr/sbin/nologin $PKG/sbin/nologin

if [ ! -z "$PAM_OPTIONS" ]; then
  # Don't ship the login utilities. We'll be using the ones from util-linux:
  for file in /bin/login /sbin/runuser /usr/bin/chfn /usr/bin/chsh \
    /usr/man/man1/chfn.1.gz /usr/man/man1/chsh.1.gz /usr/man/man1/login.1.gz \
    /usr/man/man1/runuser.1.gz ; do
    rm -f $PKG${file}
  done
  # Install config files in /etc/pam.d/. We'll use our own copies... I'm not
  # sure that I trust upstream enough to let them handle this stuff.
  rm -rf $PKG/etc/pam.d
  mkdir -p $PKG/etc/pam.d
  for file in $CWD/pam.d/* ; do
    cp -fav ${file} $PKG/etc/pam.d/
  done

  if [ "$SHIP_SU" = "YES" ]; then
     cp -fav $CWD/pam.d-su/* $PKG/etc/pam.d/
  fi

  # Ensure correct perms/ownership on files in /etc/pam.d/:
  chown root:root $PKG/etc/pam.d/*
  chmod 644 $PKG/etc/pam.d/*
  # Don't clobber existing config files:
  find $PKG/etc/pam.d -type f -exec mv {} {}.new \;
  # Install a login.defs with unsurprising defaults:
  rm -f $PKG/etc/login.defs
  zcat $CWD/login.defs.pam.gz > $PKG/etc/login.defs.new
else # not using PAM
  mv $PKG/etc/login.access $PKG/etc/login.access.new
  # Install a login.defs with unsurprising defaults:
  rm -f $PKG/etc/login.defs
  zcat $CWD/login.defs.shadow.gz > $PKG/etc/login.defs.new
fi

# If we aren't using this version of su, remove the files:
if [ "$SHIP_SU" = "NO" ]; then
   rm -fv $PKG/bin/su
   find $PKG/usr/man -name su.1 | xargs rm
   find $PKG/usr/man -name suauth.5 | xargs rm
fi

# /bin/groups is provided by coreutils.
rm -f $PKG/bin/groups
find $PKG -name groups.1 -exec rm {} \;

# /etc/suauth doesn't work with PAM, even if configure.ac is hacked to try
# to turn the feature on, so remove the man pages if we're using PAM:
if [ -L /lib${LIBDIRSUFFIX}/libpam.so.? ]; then
   find $PKG/usr/man -name suauth.5 | xargs rm
fi

# I don't think this works well enough to recommend it.
#mv $PKG/etc/limits $PKG/etc/limits.new
rm -f $PKG/etc/limits

# Add the friendly 'adduser' script:
cat $CWD/adduser > $PKG/usr/sbin/adduser
chmod 0755 $PKG/usr/sbin/adduser

# Add sulogin to the package:
cp -a src/sulogin $PKG/sbin
( cd $PKG/bin ; ln -s ../sbin/sulogin )
cp -a ./man/zh_CN/man8/sulogin.8 $PKG/usr/man/zh_CN/man8/sulogin.8 || exit 1
cp -a ./man/ru/man8/sulogin.8 $PKG/usr/man/ru/man8/sulogin.8 || exit 1
cp -a ./man/de/man8/sulogin.8 $PKG/usr/man/de/man8/sulogin.8 || exit 1
cp -a ./man/ja/man8/sulogin.8 $PKG/usr/man/ja/man8/sulogin.8 || exit 1
cp -a ./man/man8/sulogin.8 $PKG/usr/man/man8/sulogin.8 || exit 1

# Add the empty faillog log file:
mkdir -p $PKG/var/log
touch $PKG/var/log/faillog.new

# Fixup a few permissions:
# Use 4711 rather than 4755 permissions where setuid root is required:
find $PKG -type f -perm 4755 -exec chmod 4711 "{}" \;

# Copy docs:
mkdir -p $PKG/usr/doc/shadow-$VERSION
cp -a \
  COPYING* NEWS README* TODO doc/{README*,HOWTO,WISHLIST,*.txt} \
  $PKG/usr/doc/shadow-$VERSION
changelogliposuction ChangeLog $PKGNAM $VERSION # Trim down a "ChangeLog" file

# Apply generic Slackware packaging policies:
cd $PKG
slackstripall   # strip all .a archives and all ELFs
slack_delete_lafiles # delete usr/lib{,64}/*.la
#slackstriprpaths     # strip rpaths
slackgzpages -i # compress man & info pages and delete usr/info/dir
slack644docs    # set doc file permissions to 644
# Don't do this because we set permissions above.
#slackslack      # chown -R root:root, chmod -R og-w, slackchown, slack644docs
slackdesc       # install slack-desc and doinst.sh
slackmp         # run makepkg -l y -c n

# Perform any final checks on the package:
cd $PKG
slackhlinks     # search for any hard links