#!/bin/sh
#
# ddsplit, Wed Jun 30 1999, Peter Csizmadia
# (first version: 1996.03.18)
#

if [ $# -lt 3 ]; then
	cat << END
usage: ddsplit infile <kilobytes> outfile
magic numbers: 1185 (=1213440 bytes), 1423 (=1457152 bytes)
END
	exit
fi

ifname="$1"
ofsize="$2"
ofname="$3"
ls -l $ifname | awk " \
BEGIN{i=0; ifbytes=0; ofbytes=1024*$ofsize}
{
    	if(i==0)
		ifbytes = \$5
    	++i
}
END{
    	n = (ifbytes+ofbytes-1-((ifbytes+ofbytes-1) % ofbytes)) / ofbytes
    	seek=0
    	for(k=0; k<n-1; ++k) {
		ofsize=$ofsize
		s = sprintf(\"dd if=$ifname of=$ofname.%03d \
bs=1024 count=%d skip=%d\", k, $ofsize, seek)
		print s | \"cat 1>&2\"
		system(s);
		seek += ofsize;
    	}
    	s = sprintf(\"dd if=$ifname of=$ofname.%03d bs=1024 skip=%d\", k, seek)
	print s | \"cat 1>&2\"
	system(s);
}"