118 lines
2.4 KiB
Bash
Executable File
118 lines
2.4 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2007 Dmitry K. Butskoy
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# <buc@citadel.stu.neva.ru>
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# License: GPL v2 or any later
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#
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# See COPYING for the status of this software.
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#
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#
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# Shell wrapper providing lft(8) command line interface.
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#
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# The original implementation of lft(8) can be obtained
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# from http://pwhois.org/lft/
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#
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prgname=$0
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opts=""
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length=""
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method="-T"
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dport=""
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sport=""
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queries=2
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ahead=5
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scatter=20
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timeout=1000
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usage () {
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echo "Usage: $prgname [-ACEFINRSTUVbehinpruvz] [-d dport] [-s sport]
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[-m retry min] [-M retry max] [-a ahead] [-c scatter ms] [-t timeout ms]
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[-l min ttl] [-H max ttl] [-L length] [-q ISN] [-D device] [--help]
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[gateway ...] target:dport" >&2
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}
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warning () {
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echo "$prgname: Option '$1' is not implemented in this wrapper" >&2
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}
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PARSED=`getopt -o 'ACEFINRSTUVbehinpruvzd:s:m:M:a:c:t:l:H:L:q:D:' -l help -- "$@"`
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[ $? != 0 ] && exit 2
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eval set -- "$PARSED"
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while [ $# -gt 0 ]
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do
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case "$1" in
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-d) dport=$2; shift 2 ;;
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-s) sport=$2; shift 2 ;;
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-z) sport=""; shift ;;
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-m) queries=$2; shift 2 ;;
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-a) ahead=$2; shift 2 ;;
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-c) scatter=$2; shift 2 ;;
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-t) timeout=$2; shift 2 ;;
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-l) opts="$opts -f $2"; shift 2 ;;
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-L) length=$2; shift 2 ;;
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-D) case "$2" in
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[0-9]*) opts="$opts -s $2" ;;
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*) opts="$opts -i $2" ;;
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esac
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shift 2
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;;
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-H) opts="$opts -m $2"; shift 2 ;;
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-I) opts="$opts -t 0x10"; shift ;;
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-n) opts="$opts -n"; shift ;;
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-h) shift ;;
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-F) opts="$opts -O fin"; shift ;;
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-u) method="-U"; shift ;;
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-N) opts="$opts -A"; shift ;;
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-p) method="-I"; shift ;;
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-b) shift ;;
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-A) opts="$opts -A"; shift ;;
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-[ieErCTUV]) warning $1; shift ;;
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-[Mq]) warning $1; shift 2 ;;
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-[RS]) shift ;;
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--help) usage; exit 0 ;;
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-v) echo "\"lft\"-compatible wrapper for new Linux Traceroute" >&2;
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exit 0 ;;
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--) shift; break ;;
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*) echo "$prgname: Internal parsing error" >&2; exit 2 ;;
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esac
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done
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while [ $# -gt 1 ]
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do
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opts="$opts -g $1"
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shift
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done
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[ $# -eq 0 ] && {
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usage
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exit 2
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}
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case "$1" in
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*:*:*) host=$1 ;;
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*:*) dport=${1##*:}; host=${1%:*} ;;
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*) host=$1 ;;
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esac
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[ -n "$dport" ] && opts="$opts -p $dport"
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[ -n "$sport" ] && opts="$opts --sport=$sport"
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opts="$opts -q $queries"
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opts="$opts -N $(($ahead * $queries))"
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opts="$opts -z $scatter"
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timeout=`printf "%04d" $timeout`
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sec=${timeout%???}
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opts="$opts -w $sec.${timeout#$sec}"
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opts="$method $opts"
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exec traceroute $opts $host $length
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