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annotate scripts/cidr2ip @ 525:cec7533ed37c draft

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updated a2.o/links
author Nick <nick@somerandomnick.ano>
date Tue, 05 Jul 2011 18:21:54 +0000
parents 31e3b4edf502
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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19
31e3b4edf502 scripts for dom&ip, dn42 resdb, and doc (www.anonet2.org)
Nick <nick@somerandomnick.ano>
parents:
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1 #!/bin/sh
31e3b4edf502 scripts for dom&ip, dn42 resdb, and doc (www.anonet2.org)
Nick <nick@somerandomnick.ano>
parents:
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2
31e3b4edf502 scripts for dom&ip, dn42 resdb, and doc (www.anonet2.org)
Nick <nick@somerandomnick.ano>
parents:
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3 if [ x"$1" = x ]; then
31e3b4edf502 scripts for dom&ip, dn42 resdb, and doc (www.anonet2.org)
Nick <nick@somerandomnick.ano>
parents:
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4 echo "Usage: $0 <cidr>" >&2; exit 255
31e3b4edf502 scripts for dom&ip, dn42 resdb, and doc (www.anonet2.org)
Nick <nick@somerandomnick.ano>
parents:
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5 fi
31e3b4edf502 scripts for dom&ip, dn42 resdb, and doc (www.anonet2.org)
Nick <nick@somerandomnick.ano>
parents:
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6
31e3b4edf502 scripts for dom&ip, dn42 resdb, and doc (www.anonet2.org)
Nick <nick@somerandomnick.ano>
parents:
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7 ip="$(echo "$1" | cut -d/ -f1)"
31e3b4edf502 scripts for dom&ip, dn42 resdb, and doc (www.anonet2.org)
Nick <nick@somerandomnick.ano>
parents:
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8 len="$(echo "$1" | cut -d/ -f2)"
31e3b4edf502 scripts for dom&ip, dn42 resdb, and doc (www.anonet2.org)
Nick <nick@somerandomnick.ano>
parents:
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9 if [ x"$((len%8))" != x0 ]; then
31e3b4edf502 scripts for dom&ip, dn42 resdb, and doc (www.anonet2.org)
Nick <nick@somerandomnick.ano>
parents:
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10 echo "Prefix length must be a multiple of 8" >&2; exit 255
31e3b4edf502 scripts for dom&ip, dn42 resdb, and doc (www.anonet2.org)
Nick <nick@somerandomnick.ano>
parents:
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11 fi
31e3b4edf502 scripts for dom&ip, dn42 resdb, and doc (www.anonet2.org)
Nick <nick@somerandomnick.ano>
parents:
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12 octets="$((len/8))"
31e3b4edf502 scripts for dom&ip, dn42 resdb, and doc (www.anonet2.org)
Nick <nick@somerandomnick.ano>
parents:
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13 for x in `seq 1 $octets` ; do
31e3b4edf502 scripts for dom&ip, dn42 resdb, and doc (www.anonet2.org)
Nick <nick@somerandomnick.ano>
parents:
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14 echo $ip | cut -d. -f$x
31e3b4edf502 scripts for dom&ip, dn42 resdb, and doc (www.anonet2.org)
Nick <nick@somerandomnick.ano>
parents:
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15 done | tr '\n' . | head -c -1 ; echo