rkpad

#! /bin/sh

# Copyright (C) 2013 Ivo van Poorten
# All rights reserved
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
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# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

MAJOR=5
MINOR=2

test "$#" -eq 3 || { cat << __EOF__

rkpad v$MAJOR.$MINOR

usage:    rkpad size infile outfile

    copy infile to outfile and pad with zeroes up to the specified size.
    size is in blocks of 512 bytes (!) i.e. equal to the partition sizes.

    e.g. rkpad 0x00002000 foo bar

__EOF__
exit
}

dd if=/dev/zero of="$3" bs=512 count=$(($1))

dd if="$2" of="$3" conv=notrunc