: '
: *************************************************************************
:
:			   INFORMIX SOFTWARE, INC.
: 
:			      PROPRIETARY DATA
: 
:	THIS DOCUMENT CONTAINS TRADE SECRET DATA WHICH IS THE PROPERTY OF 
:	INFORMIX SOFTWARE, INC.  THIS DOCUMENT IS SUBMITTED TO RECIPIENT IN
:	CONFIDENCE.  INFORMATION CONTAINED HEREIN MAY NOT BE USED, COPIED OR 
:	DISCLOSED IN WHOLE OR IN PART EXCEPT AS PERMITTED BY WRITTEN AGREEMENT 
:	SIGNED BY AN OFFICER OF INFORMIX SOFTWARE, INC.
:
:	THIS MATERIAL IS ALSO COPYRIGHTED AS AN UNPUBLISHED WORK UNDER
:	SECTIONS 104 AND 408 OF TITLE 17 OF THE UNITED STATES CODE. 
:	UNAUTHORIZED USE, COPYING OR OTHER REPRODUCTION IS PROHIBITED BY LAW.
:
:
:  Title:	installclientsdk
:  Sccsid:	@(#)installesql	9.2	2/19/93  16:36:09
:  Description:	
:		Installation script
:		Derived from 7.1
: **********************************************************************
: '

flags=hiof
installflag=""
need_vers_check="yes"
versionfile="ClientSDK-cr"
file_list="etc/clientsdkfiles"
lvers_file="etc/.lvers_csdk"
ans=""

usage()
{
    echo '
Usage: installclientsdk [-i|-o] [-f]
        -i: To install ClientSDK along with Informix Dynamic Server with
            Universal Data Option
        -o: To install ClientSDK along with Informix Dynamic Server or
	    Informix Dynamic Server with other options
        -f: Force install to override version checking

For installation of ClientSDK along with Informix Dynamic Server with
Universal Data Option (Release 9), installclientsdk should be run as user
"informix".
For installation of ClientSDK along with Informix Dynamic Server (Release 7),
or Informix Dynamic Server with other options, installclientsdk should be
run as "root".
All types of installation require existence of user "informix"'
}


#
# Write the .lvers file used by check_version utility.
# This file is a 'hidden' file that stores the newest
# version of ClientSDK installed by the user.
#
write_lvers_file()
{
   nvers=$1

   if test ! -f $lvers_file ; then
      echo "$nvers" > $lvers_file
      return
   fi

   lvers="`cat $lvers_file`"
   compare_versions "$lvers" "$nvers"
   result=$?

   # Only overwrite the file if the just installed version
   # is a newer release than the previous contents.
   if test "x$result" = "x0" ; then
       echo "$nvers" > $lvers_file
   fi
}


#
# function vers_abort
# If the new version to be installed is older than the
# installed one, abort the install. Called by version_check()
#
vers_abort()
{
   i=$1 ; n=$2

   echo ""
   echo "	*** INSTALL ABORTED ***"
   echo ""
   echo "Installed version: $i"
   echo "New version: $n"
   p="`echo $versionfile|sed 's/-cr//'`"
   echo ""
   echo "	Install of $p aborted to avoid overwrite of identical"
   echo "	or newer version."
   echo "	NOTE: To override version checking, rerun install with -f option"
   exit 1
}

#
# tar/bar/cpio the contents of the clientsdkcontent file
#
extract_content_file()
{
   tarcmd=$1 ; tarfile=$2
   eval $tarcmd $tarfile
}


#
# Extract the -cr file from the etc directory.
# I couldn't use extract_content_file() because the syntax is so
# different b/w tar and cpio.
#
get_version_info()
{
   cmd=$1 ; file=$2
    case $cmd in
      tar | bar ) $cmd xf $file "etc/ClientSDK-cr"
                  ;;
      cpi | cpio ) cpio -icdBum "etc/ClientSDK-cr" < $file > /dev/null 2>&1
             ;;
    esac
}

   
#
# function: version_check()               
# Make sure we're not installing over newer version.
#
version_check()
{
    # Get the tar file name. First find out what type of file (tar, bar, etc.)
    # we are dealing with.
    fil="`echo ${file_list}| sed 's/etc\///' | sed 's/files//'`"content

    # Extract the suffix (e.g. the 'tar' of clientsdkcontent.tar)
    tmps=`ls -t ${fil}* 2>/dev/null |awk '{print $NR}'`
    if test "x$tmps" = "x" ; then 
       echo ""
       echo "	*** INSTALL ABORTED ***"
       echo ""
       echo '	Cannot find clientsdkcontent file'
       exit 1 
    fi
    filtype=`expr $tmps : '.*\.\(.*\)'`
    case $filtype in
      tar | bar ) tarfile="${fil}.${filtype}" ; tarcmd="$filtype xf " ;;
      cpi | cpio ) tarfile="${fil}.${filtype}" ; tarcmd="cpio -icvdBum <" ;;
        * ) tarfile="${fil}.${filtype}" ; tarcmd="$filtype xf " ;;
    esac

    # Make sure the tar file exists
    if test ! -f $tarfile ; then
       echo ""
       echo "	*** INSTALL ABORTED ***"
       echo ""
       echo " Cannot find $tarfile file"
       exit 1
    fi

    # If there is no versionfile (i.e. no previous version)
    # we're ok
    installedversionfile=${INFORMIXDIR}/etc/${versionfile}
    if test ! -f ${installedversionfile} ; then
       need_vers_check="no"
    fi

    # What's the currently installed version?
    if test -f ${installedversionfile} ; then
       ins_vers="`cat ${installedversionfile}|grep Version | awk '{print $NF}'`"
    fi

    # cd to /tmp to extract the ClientSDK-cr file from clientsdkcontent.tar
    tarfile=`pwd`/$tarfile
    olddir=`pwd`
    mkdir /tmp/crdir.$$
    cd /tmp/crdir.$$ 

    get_version_info "$filtype" "$tarfile"
    if test -f etc/$versionfile ; then
       cat etc/$versionfile
       new_vers="`cat etc/$versionfile|grep Version | awk '{print $NF}'`"
    fi
    cd $olddir
    rm -rf /tmp/crdir.$$

    if test "x${need_vers_check}" = "xyes" ; then
       compare_versions $ins_vers $new_vers
       result=$?
       if test "x$result" = "x1" ; then
           vers_abort "$ins_vers" "$new_vers"
       fi
    fi

    # We made it this far, so go ahead and tar down the files
    return
}

#
# Compare two versions, looking for differences.
# returns 0 for new version is a newer release than installed version
# returns 1 for new version is an older release or the same
# Called by version_check() and write_lvers_file()
#
compare_versions()
{
    ivers=$1 ; nvers=$2

    # Compare major versions (e.g. '7' of 7.23.UC1)
    ins_maj=`echo $ivers|awk 'BEGIN {FS="."} {printf "%d", $1}'`
    new_maj=`echo $nvers|awk 'BEGIN {FS="."} {printf "%d", $1}'`

    if test $ins_maj -gt $new_maj ; then
       return 1
    elif test $ins_maj -lt $new_maj ; then
       return 0
    fi 

    # Compare minor versions (e.g. '23' of 7.23.UC1)
    ins_min=`echo $ivers|awk 'BEGIN {FS="."} {printf "%d", $2}'`
    new_min=`echo $nvers|awk 'BEGIN {FS="."} {printf "%d", $2}'`

    if test $ins_min -gt $new_min ; then
       return 1
    elif test $ins_min -lt $new_min ; then
       return 0
    fi

    # Compare release versions (e.g. 'UC' of 7.23.UC1)
    tmp1=`echo $ivers|awk 'BEGIN {FS="."} {print $3}'`
    ins_rel=`expr /$tmp1 : '.*/\([A-Z][A-Z]\)'`

    tmp2=`echo $nvers|awk 'BEGIN {FS="."} {print $3}'`
    new_rel=`expr /$tmp2 : '.*/\([A-Z][A-Z]\)'`

    if test `expr $ins_rel \> $new_rel` = 1 ; then
       return 1
    elif test `expr $ins_rel \< $new_rel` = 1 ; then
       return 0
    fi

    # Compare release number (e.g. '1' of 7.23.UC1)
    ins_num=`echo $tmp1|sed 's/[A-Z][A-Z]//'`
    new_num=`echo $tmp2|sed 's/[A-Z][A-Z]//'`

    if test $ins_num -gt $new_num ; then
       return 1
    elif test $ins_num -lt $new_num ; then
       return 0
    fi

    if test $ins_rel = $new_rel ; then
       return 1
    fi
}

#
# main
#
while getopts $flags flag
do
    case $flag in
	i )  if [ "${installflag}" -ne "" ]
		then
		    usage
		    exit 1
		else
		   installflag="INSTALLIUS"
	        fi
	        ;;
	o) if [ "${installflag}" -ne "" ]
	   then
	       usage
	       exit 1
	   else
	       installflag="INSTALLODS"
	   fi
	   ;;
	f) need_vers_check="no"
	   ;;
	*) usage
	   exit 1
	   ;;
    esac
done


# Before installing, check version of new product against installed version
# to avoid installing an older version over a newer one
version_check

if [ "${installflag}" = "" ]
then
    echo '
Is ClientSDK being installed along with Informix Dynamic Server with
Universal Data Option (Release 9, required to be run as user "informix")?
(yes or no)'
    read ans
    if [ "${ans}" = "yes" -o "${ans}" = "y" ]
    then
	installflag="INSTALLIUS"
    else
	installflag="INSTALLODS"
    fi
fi

echo "Extracting files from clientsdkcontent file..."
echo ""
extract_content_file "$tarcmd" "$tarfile"

if [ "${installflag}" = "INSTALLIUS" ]
then
    echo '
Installing ClientSDK as user informix...'
else
    echo '
Installing ClientSDK as user root...'
fi

etc/installc etc/clientsdkfiles CHECK BRAND NO_UPGRADE $installflag

# Write .lvers_csdk file
write_lvers_file "$new_vers"

# Remove content tar file
rm -f clientsdkcontent.tar