#!/bin/sh
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#$Id$
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#
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# Script created by: Stephen R. van den Berg <srb@cuci.nl>, 1999/04/18
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# Donated to the public domain.
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#
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# This script transforms the output of "ip" into more readable text.
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# "ip" is the Linux-advanced-routing configuration tool part of the
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# iproute package.
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#
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test "X-h" = "X$1" && echo "Usage: $0 [tablenr [raw ip args...]]" && exit 64
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test -z "$*" && set 0
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ip route list table "$@" |
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while read network rest
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do set xx $rest
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shift
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proto=""
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via=""
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dev=""
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scope=""
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src=""
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table=""
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case $network in
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broadcast|local|unreachable) via=$network
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network=$1
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shift
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;;
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esac
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while test $# != 0
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do
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case "$1" in
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proto|via|dev|scope|src|table)
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key=$1
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val=$2
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eval "$key='$val'"
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shift 2
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;;
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dead|onlink|pervasive|offload|notify|linkdown|unresolved)
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shift
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;;
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*)
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# avoid infinite loop on unknown keyword without value at line end
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shift
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shift
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;;
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esac
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done
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echo "$network $via $src $proto $scope $dev $table"
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done | awk -F ' ' '
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BEGIN {
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format="%15s%-3s %15s %15s %8s %8s%7s %s\n";
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printf(format,"target","","gateway","source","proto","scope","dev","tbl");
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}
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{ network=$1;
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mask="";
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if(match(network,"/"))
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{ mask=" "substr(network,RSTART+1);
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network=substr(network,0,RSTART);
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}
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via=$2;
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src=$3;
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proto=$4;
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scope=$5;
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dev=$6;
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table=$7;
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printf(format,network,mask,via,src,proto,scope,dev,table);
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}
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'
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