#!/bin/sh
# --- BEGIN COPYRIGHT BLOCK ---
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
# 
# Copyright (C) 2007 Red Hat, Inc.
# All rights reserved.
# --- END COPYRIGHT BLOCK ---

# Check to insure that this script's original invocation directory
# has not been deleted!
CWD=`/bin/pwd > /dev/null 2>&1`
if [ $? -ne 0 ] ; then
    echo "Cannot invoke '$0' from non-existent directory!"
    exit 255
fi
 

###############################################################################
##  (1) Specify variables used by this script.                               ##
###############################################################################

PRODUCT=[PKI_PRODUCT]
SUBSYSTEM=[PKI_SUBSYSTEM]
COMMAND=[PKI_COMMAND]


###############################################################################
##  (2) Define helper functions.                                             ##
###############################################################################

invalid_operating_system() {
    echo
    echo "ERROR:  '$0' does not execute on the '$1' operating system!"
    echo
}

invalid_architecture() {
    echo
    echo "ERROR:  '$0' does not execute on the '$1' architecture!"
    echo
}


###############################################################################
##  (3) Set environment variables.                                           ##
##                                                                           ##
##      Set the LD_LIBRARY_PATH environment variable to determine the        ##
##      search order this command wrapper uses to find shared libraries.     ##
##                                                                           ##
##      Set the PATH environment variable to determine the search            ##
##      order this command wrapper uses to find binary executables.          ##
##                                                                           ##
##      NOTE:  Since "/bin" is nothing more than a symbolic link to          ##
##             "/usr/bin" on Solaris, this directory will always be          ##
##             excluded from the search path on this platform.               ##
##                                                                           ##
###############################################################################

OS=`uname -s`

if [ "${OS}" = "Linux" ] ; then
    ARCHITECTURE=`uname -i`
    if [ "${ARCHITECTURE}" = "i386" ] ; then
        LD_LIBRARY_PATH=/usr/lib:/lib
        LD_LIBRARY_PATH=/usr/lib/dirsec:${LD_LIBRARY_PATH}
        LD_LIBRARY_PATH=/usr/lib/${PRODUCT}:${LD_LIBRARY_PATH}
        LD_LIBRARY_PATH=/usr/lib/${PRODUCT}/${SUBSYSTEM}:${LD_LIBRARY_PATH}
        export LD_LIBRARY_PATH

        PATH=/usr/lib/${PRODUCT}:/usr/bin:/bin
        PATH=/usr/lib/${PRODUCT}/${SUBSYSTEM}:${PATH}
        export PATH
    elif [ "${ARCHITECTURE}" = "x86_64" ] ; then
        LD_LIBRARY_PATH=/usr/lib:/lib
        LD_LIBRARY_PATH=/usr/lib/dirsec:${LD_LIBRARY_PATH}
        LD_LIBRARY_PATH=/usr/lib/${PRODUCT}:${LD_LIBRARY_PATH}
        LD_LIBRARY_PATH=/usr/lib/${PRODUCT}/${SUBSYSTEM}:${LD_LIBRARY_PATH}
        LD_LIBRARY_PATH=/usr/lib64:/lib64:${LD_LIBRARY_PATH}
        LD_LIBRARY_PATH=/usr/lib64/dirsec:${LD_LIBRARY_PATH}
        LD_LIBRARY_PATH=/usr/lib64/${PRODUCT}:${LD_LIBRARY_PATH}
        LD_LIBRARY_PATH=/usr/lib64/${PRODUCT}/${SUBSYSTEM}:${LD_LIBRARY_PATH}
        export LD_LIBRARY_PATH

        PATH=/usr/lib/${PRODUCT}:/usr/bin:/bin
        PATH=/usr/lib/${PRODUCT}/${SUBSYSTEM}:${PATH}
        PATH=/usr/lib64/${PRODUCT}:${PATH}
        PATH=/usr/lib64/${PRODUCT}/${SUBSYSTEM}:${PATH}
        export PATH
    else
        invalid_architecture "${ARCHITECTURE}"
        exit 255
    fi
elif [ "${OS}" = "SunOS" ] ; then
    ARCHITECTURE=`uname -p`
    if [ "${ARCHITECTURE}" = "sparc" ] &&
       [ -d "/usr/lib/sparcv9/" ] ; then
        ARCHITECTURE="sparcv9"
    fi
    if [ "${ARCHITECTURE}" = "sparc" ] ; then
        LD_LIBRARY_PATH=/usr/lib:/lib
        LD_LIBRARY_PATH=/usr/lib/dirsec:${LD_LIBRARY_PATH}
        LD_LIBRARY_PATH=/usr/lib/${PRODUCT}:${LD_LIBRARY_PATH}
        LD_LIBRARY_PATH=/usr/lib/${PRODUCT}/${SUBSYSTEM}:${LD_LIBRARY_PATH}
        export LD_LIBRARY_PATH

        PATH=/usr/bin
        PATH=/usr/lib/${PRODUCT}:${PATH}
        PATH=/usr/lib/${PRODUCT}/${SUBSYSTEM}:${PATH}
        export PATH
    elif [ "${ARCHITECTURE}" = "sparcv9" ] ; then
        LD_LIBRARY_PATH=/usr/lib:/lib
        LD_LIBRARY_PATH=/usr/lib/dirsec:${LD_LIBRARY_PATH}
        LD_LIBRARY_PATH=/usr/lib/${PRODUCT}:${LD_LIBRARY_PATH}
        LD_LIBRARY_PATH=/usr/lib/${PRODUCT}/${SUBSYSTEM}:${LD_LIBRARY_PATH}
        LD_LIBRARY_PATH=/usr/lib/sparcv9:/lib/sparcv9:${LD_LIBRARY_PATH}
        LD_LIBRARY_PATH=/usr/lib/sparcv9/dirsec:${LD_LIBRARY_PATH}
        LD_LIBRARY_PATH=/usr/lib/sparcv9/${PRODUCT}:${LD_LIBRARY_PATH}
        LD_LIBRARY_PATH=/usr/lib/sparcv9/${PRODUCT}/${SUBSYSTEM}:${LD_LIBRARY_PATH}
        export LD_LIBRARY_PATH

        PATH=/usr/bin/sparcv9
        PATH=/usr/lib/${PRODUCT}:${PATH}
        PATH=/usr/lib/${PRODUCT}/${SUBSYSTEM}:${PATH}
        PATH=/usr/lib/sparcv9/${PRODUCT}:${PATH}
        PATH=/usr/lib/sparcv9/${PRODUCT}/${SUBSYSTEM}:${PATH}
        export PATH
    else
        invalid_architecture "${ARCHITECTURE}"
        exit 255
    fi
else
    invalid_operating_system "${OS}"
    exit 255
fi


###############################################################################
##  (4) Execute the binary executable specified by this command wrapper      ##
##      based upon the preset LD_LIBRARY_PATH and PATH environment variables.##
###############################################################################

ORIGINAL_IFS=${IFS}
IFS=:

for dir in ${PATH}
do
    if [ -x ${dir}/${COMMAND} ]
    then
        IFS=${ORIGINAL_IFS}
        ${dir}/${COMMAND} "$@"
        exit $?
    fi
done

echo "Unable to find \"${COMMAND}\" in \"${PATH}\"!"

exit 255