#!/bin/bash

#+--------------------------------------------------------------------------------------------
#|Description:  This shell script used download and compile openssl for ARM
#|     Author:  GuoWenxue <guowenxue@gmail.com>
#|  ChangeLog:
#|           1, Initialize 1.0.0 on 2011.04.12
#+--------------------------------------------------------------------------------------------

PREFIX_PATH=`pwd`/install

if [ -z $CROSSTOOL ] ; then
   CROSSTOOL=/opt/rpi/arm-bcm2708/arm-linux-gnueabihf/bin/arm-linux-gnueabihf-
fi

function msg_banner()
{
    echo ""
    echo "+-----------------------------------------------------------------------"
    echo "|  $1 "
    echo "+-----------------------------------------------------------------------"
    echo ""
}

function check_result()
{
    if [ $? != 0 ] ; then
       echo ""
       echo "+-----------------------------------------------------------------------"
       echo "|  $1 "
       echo "+-----------------------------------------------------------------------"
       echo ""
       exit ;
    fi
}

function export_cross()
{
    # export cross toolchain
    export CC=${CROSSTOOL}gcc
    export AS=${CROSSTOOL}as
    export AR=${CROSSTOOL}ar
    export LD=${CROSSTOOL}ld
    export NM=${CROSSTOOL}nm
    export RANLIB=${CROSSTOOL}ranlib
    export OBJDUMP=${CROSSTOOL}objdump
    export STRIP=${CROSSTOOL}strip

    # export cross configure 
    export CONFIG_CROSS=" --build=i686-pc-linux --host=arm-linux "

    # Clear LDFLAGS and CFLAGS
    export LDFLAGS=
    export CFLAGS=
}

function compile_openssl()
{
    SRC_NAME=openssl-0.9.8zf
    PACK_SUFIX=tar.gz

    if [ -f ${PREFIX_PATH}/${IMG_NAME} ] ; then
        return 0;
    fi

    msg_banner "Start cross compile $SRC_NAME "

    if [ ! -f ${SRC_NAME}.${PACK_SUFIX} ] ; then
        wget ftp://ftp.openssl.org/source/old/0.9.x//${SRC_NAME}.${PACK_SUFIX}
        check_result "ERROR: download ${SRC_NAME} failure"
    fi

    tar -xzf ${SRC_NAME}.${PACK_SUFIX}
    cd ${SRC_NAME}


    patch -p1 < ../patch/openssl-0.9.8zf-tls-extensions.patch

    FILE=Makefile
    sed -i -e "s|^INSTALLTOP=.*|INSTALLTOP= $PREFIX_PATH|g" ${FILE}
    sed -i -e "s|^OPENSSLDIR=.*|OPENSSLDIR= $PREFIX_PATH|g" ${FILE}
    sed -i -e "s|^CC=.*|CC= ${CROSSTOOL}gcc|g" ${FILE}
    sed -i -e "s|^AR=.*|AR= ar \$(ARFLAGS) r|g" ${FILE}
    sed -i -e "s|^ARD=.*|ARD= ar \$(ARFLAGS) d|g" ${FILE}
    sed -i -e "s|^RANLIB=.*|RANLIB= ${CROSSTOOL}ranlib|g" ${FILE}
    sed -i -e "s|^OPTIONS=.*|CC= ${CROSSTOOL}gcc|g" ${FILE}
    
    make  && make install
    check_result "ERROR: compile ${SRC_NAME} failure"

    cd -
}


export_cross

compile_openssl