#! /bin/sh

# wrapper for flashdist.sh - write to a file instead of a device
# for future DD'ing on another platform...
#
# originally hacked together by William Yang
# You can reach me via webform:  http://wdyllc.com/contact/
#
# if products are derived from this code, please give me credit for
# whatever contributions I generate.
#
# uses Flashdist.  http://www.nmedia.net/~chris/soekris/
#  that's where the real magic is....
#
# warning: use of this program may do heinous things.  Don't use it
# unless you're willing to accept the associated risks.
#
# no waranties, express or implied.  no support.  no fitness for any
# particular purpose.  This program is for educational purposes only and 
# is a demonstration of a technique.  it is not intended to be used
# without fully understanding its functions and modifying its
# instructions to fit your specific needs.
#

# I wasn't kidding.  Don't use this without modifying it to fit your
# specific needs.
exit 0

syspath=/
tempfile=/tmp/building-flashdist.$$
device=svnd0
imagefile=$HOME/distrib-tools/MySystem/out/image.fs
kernelfile=/bsd
distfilelist=$HOME/distrib-tools/MySystem/files
flashdistpath=$HOME/distrib-tools/reference/flashdist-20030520/flashdist.sh

## passed on to the flashdist script
# drive geometry information -- get the right one for YOUR flash instead # of using mine!
totalsize=125440        # "total sectors:"
bytessec=512            # "bytes/sector:"
sectorstrack=32         # "sectors/track:"
sectorscylinder=256     # "sectors/cylinder:"
trackscylinder=8        # "tracks/cylinder:"
cylinders=490           # "cylinders:"
# encrypted password
encpass='[sorry, this information was supressed]'
# syslog server
syslogserver="[supressed]"

## end of flashdist customization

export totalsize bytessec sectorstrack sectorscylinder trackscylinder cylinders
export syslogserver encpass

# create an image file, if one doesn't exist.
if [ ! -f $imagefile ] ; then
        dd if=/dev/zero of=$imagefile bs=512 count=$totalsize
fi
# treat the image file as a device in OpenBSD
vnconfig -c $device $imagefile

# remove tempfile if it exists.
[ -f $tempfile ] && /bin/rm -f $tempfile

#
# figure out if you're missing any libraries and add them magically
# to the distribution, if necessary...
#
# this is the only remotely innovative thing I've done with this
# script.
#
cp $distfilelist $tempfile
( cd / ; ldd `egrep -v /usr/lib $distfilelist` 2>/dev/null ) | \
        grep /usr/lib | \
        sed     -e 's/^[^\-]*-/-/g' \
                -e 's/^.*=> /\./g' \
                -e 's/ .*$//g' | \
        sort -u >> $tempfile

# invoke flashdist
$flashdistpath $device $tempfile $kernelfile $syspath

# clean up
[ -f $tempfile ] && /bin/rm -f $tempfile

# no longer treat the image file as a device...
vnconfig -u $device

# done.