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Editing: traceroute-nanog

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#!/bin/sh
#
#   Copyright (c)  2007             Dmitry K. Butskoy
#                                   <buc@citadel.stu.neva.ru>
#   License:  GPL v2 or any later
#
#   See COPYING for the status of this software.
#

#
#  Shell wrapper providing traceroute-nanog(8) command line interface.
#
#  The original implementation of traceroute-nanog(8) can be obtained
#  from ftp://ftp.login.com/pub/software/traceroute/
#

prgname=$0
opts=""
spray=""

usage () {
    echo "Usage: $prgname [-adnruvAMOPQU$] [-w wait] [-S start_ttl]
		[-m max_ttl] [-p port] [-q nqueries] [-g gateway] [-t tos]
		[-s src_addr] [-I proto]  host  [data_size]" >&2
}

warning () {
    echo "$prgname: Option '$1' is not implemented in this wrapper" >&2
}

PARSED=`getopt 'adnruvAMOPQU$w:S:m:p:q:g:t:s:I:f:T:' "$@"`
[ $? != 0 ] && {
    usage
    exit 2
}

eval set -- "$PARSED"

while [ $# -gt 0 ]
do
    case "$1" in
	-[Adrn])  opts="$opts $1"; shift ;;
	-[gmpqstw])  opts="$opts $1 $2"; shift 2 ;;
	-I)  case "$2" in
		icmp)  opts="$opts -I" ;;
		tcp)  opts="$opts -T" ;;
		udp)   ;;
		udplite)  opts="$opts -UL" ;;
		*)  opts="$opts -P $2" ;;
	     esac
	     shift 2  ;;
	-S)  opts="$opts -f $2"; shift 2 ;;
	-P)  spray=1; shift ;;
	-f)  opts="$opts --sport=$2"; shift 2 ;;
	-u)  ;;
	-$)  opts="-f 64 -m 64 -q 1"; shift ;;
	-M)  opts="$opts --mtu"; shift ;;
	-[aUOvQ])  warning $1; shift ;;
	-T)  warning $1; shift 2 ;;
	--)  shift; break ;;
	*)  echo "$prgname: Internal parsing error" >&2; exit 2 ;;
    esac
done

[ $# -eq 0 ] && {
    usage
    exit 2
}

[ -z "$spray" ] && opts="$opts -N 1"

exec /usr/bin/traceroute.db $opts $1 $2