#!/bin/sh
# Copyright (c) 2006,2007 Eric Hameleers <alien@slackware.com>
#
# 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=wpa_supplicant
VERSION=${VERSION:-0.5.7}
ARCH=${ARCH:-i486}
BUILD=${BUILD:-1}

CWD=`pwd`

# Place to build (TMP) package (PKG) and output (OUTPUT) the program:
TMP=${TMP:-/tmp/build}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

DOCS="ChangeLog COPYING README* examples wpa_supplicant.conf.sample"

# Support for some of the wireless drivers needs the header files of those
# drivers.
# Change these *_INCLUDES variables to where _your_ driver include directory
# is located. If any of these directories is found, support for the driver
# will be added to wpa_supplicant.
# My madwifi package for Slackware installs the headers here:
MADWIFI_INCLUDES="/usr/include/madwifi"
HERMES_INCLUDES=""
BROADCOM_INCLUDES=""

case "$ARCH" in
  i386)      SLKCFLAGS="-O2 -march=i386 -mtune=i686"
             SLKLDFLAGS=""; LIBDIRSUFFIX=""
             ;;
  i486)      SLKCFLAGS="-O2 -march=i486 -mtune=i686"
             SLKLDFLAGS=""; LIBDIRSUFFIX=""
             ;;
  s390)      SLKCFLAGS="-O2"
             SLKLDFLAGS=""; LIBDIRSUFFIX=""
             ;;
  powerpc)   SLKCFLAGS="-O2"
             SLKLDFLAGS=""; LIBDIRSUFFIX=""
             ;;
  x86_64)    SLKCFLAGS="-O2 -fPIC"
             SLKLDFLAGS="-L/usr/lib64"; LIBDIRSUFFIX="64"
             ;;
  athlon-xp) SLKCFLAGS="-march=athlon-xp -O3 -pipe -fomit-frame-pointer"
             SLKLDFLAGS=""; LIBDIRSUFFIX=""
             ;;
esac

if [ ! -d $TMP/tmp-$PRGNAM ]; then
  mkdir -p $TMP/tmp-$PRGNAM # location to build the source
else
  rm -rf $TMP/tmp-$PRGNAM/*
fi

if [ ! -d $PKG ]; then
  mkdir -p $PKG  # place for the package to be built
else
  rm -rf $PKG/*  # erase content of previous package creation
fi

if [ ! -d $OUTPUT ]; then
  mkdir -p $OUTPUT  # place for the package to be saved
fi

echo "++"
echo "|| $PRGNAM-$VERSION"
echo "++"

cd $TMP/tmp-$PRGNAM

if ! [ -f $CWD/${PRGNAM}-${VERSION}.defconfig ]; then
  echo "Could not find ${PRGNAM}-${VERSION}.defconfig!"
  echo "You need to create that file using ${PRGNAM}-${VERSION}/defconfig as example."
  exit 1
fi

tar xjvf $CWD/${PRGNAM}-${VERSION}.tar.bz2
cd ${PRGNAM}-${VERSION}

# Create the configuration file for wpa_supplicant:
cat $CWD/${PRGNAM}-${VERSION}.defconfig > .config
if [ ! -z $MADWIFI_INCLUDES -a -d $MADWIFI_INCLUDES ]; then
  echo "Adding madwifi driver (Atheros) support"
  cat <<-EOT >> .config
	CONFIG_DRIVER_MADWIFI=y
	CFLAGS += -I${MADWIFI_INCLUDES}
	EOT
fi
if [ ! -z $HERMES_INCLUDES -a -d $HERMES_INCLUDES ]; then
  echo "Adding hermes driver (Agere) support"
  cat <<-EOT >> .config
	CONFIG_DRIVER_HERMES=y
	CFLAGS += -I${HERMES_INCLUDES}
	EOT
fi
if [ ! -z $BROADCOM_INCLUDES -a -d $BROADCOM_INCLUDES ]; then
  echo "Adding broadcom driver support"
  cat <<-EOT >> .config
	CONFIG_DRIVER_BROADCOM=y
	CFLAGS += -I${BROADCOM_INCLUDES}
	EOT
fi

chown -R root:root .
chmod -R u+w,go+r-w,a-s .

echo Building ...

make
# Build the GUI client
make wpa_gui
# Make man pages if needed
pushd doc/docbook
if ! ls *.? >/dev/null 2>&1 ; then
  make man
fi
popd

# Do not build the developer docs
#PATH=".:$PATH" make docs

# This goes in the doc directory later on:
cp wpa_supplicant.conf wpa_supplicant.conf.sample

# Install binaries
mkdir -p $PKG/usr/sbin
cp wpa_supplicant wpa_passphrase wpa_cli wpa_gui/wpa_gui $PKG/usr/sbin/

# Install man pages
for m in 5 8; do
  mkdir -p $PKG/usr/man/man${m}
  cp doc/docbook/*.${m} $PKG/usr/man/man${m}/
done

# Install configuration file
mkdir -p $PKG/etc
cat <<-_EOT_ > $PKG/etc/wpa_supplicant.conf.new
	# See /usr/doc/${PRGNAM}-${VERSION}/wpa_supplicant.conf.sample
	# for many more options that you can use in this file.
	
	# This line enables the use of wpa_cli which is used by rc.wireless
	# if possible (to check for successful association)
	ctrl_interface=/var/run/wpa_supplicant
	# By default, only root (group 0) may use wpa_cli
	ctrl_interface_group=0
	eapol_version=1
	ap_scan=1
	fast_reauth=1
	
	# WPA protected network, supply your own ESSID and WPAPSK here:
	network={
	  scan_ssid=0
	  ssid="your_essid_here"
	  proto=WPA
	  key_mgmt=WPA-PSK
	  pairwise=CCMP TKIP
	  group=CCMP TKIP WEP104 WEP40
	  psk=your_psk_here
	}
	
	# Plaintext connection (no WPA, no IEEE 802.1X),
	# nice for hotel/airport types of WiFi network.
	# You'll need a recent version of wireless-tools for this!
	network={
	  ssid="any"
	  key_mgmt=NONE
	  priority=2
	}
	_EOT_

# 'doinst.sh' script:
mkdir -p $PKG/install 2>/dev/null
cat <<EOINS > $PKG/install/doinst.sh
# Handle the incoming configuration files:
config() {
  for infile in \$1; do
    NEW="\$infile"
    OLD="\`dirname \$NEW\`/\`basename \$NEW .new\`"
    # If there's no config file by that name, mv it over:
    if [ ! -r \$OLD ]; then
      mv \$NEW \$OLD
    elif [ "\`cat \$OLD | md5sum\`" = "\`cat \$NEW | md5sum\`" ]; then
      # toss the redundant copy
      rm \$NEW
    fi
    # Otherwise, we leave the .new copy for the admin to consider...
  done
}
config etc/wpa_supplicant.conf.new

EOINS

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a $DOCS $PKG/usr/doc/$PRGNAM-$VERSION
chmod -R a-w $PKG/usr/doc/$PRGNAM-$VERSION/*

# This should only be read/write by root:
chmod 600 $PKG/etc/wpa_supplicant.conf.new

find $PKG/usr/man -type f -name "*.?" -exec gzip -9f {} \;

pushd $PKG
find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
popd

chmod -R o-w $PKG

cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
makepkg --linkadd y --chown n $OUTPUT/${PRGNAM}-${VERSION}-${ARCH}-${BUILD}.tgz

# Clean up the extra stuff:
if [ "$1" = "--cleanup" ]; then
  rm -rf $TMP/tmp-$PRGNAM
  rm -rf $PKG
fi