28 lines
557 B
Text
28 lines
557 B
Text
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#!/usr/bin/env zsh
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typeset -ga PRIVATE_RANGES=(
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00001010 # 10.0.0.0/8
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101011000001 # 172.16.0.0/12
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1100000010101000 # 192.168.0.0/16
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)
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test_range() {
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typeset net addr=$(printf '%.2x' ${(s:.:)1})
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for net in $PRIVATE_RANGES; do
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((16#$addr >> (32 - $#net) == 2#$net)) && return 0
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done
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}
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report() {
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typeset result='private' addr=$1 state=$2
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((state)) && result='not private'
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printf "%s is %s\n" $addr $result
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exit $state
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}
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main() {
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test_range $1 && report $1 0
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report $1 1
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}
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main $@
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