package/arpwatch/patches/021_debian_arp2ethers

   1 Index: arpwatch/arp2ethers
   2 diff -u arpwatch/arp2ethers:1.1.1.1 arpwatch/arp2ethers:1.1.1.1.14.1
   3 --- arpwatch/arp2ethers:1.1.1.1 Tue Apr 17 13:31:36 2001
   4 +++ arpwatch/arp2ethers Tue Apr 17 13:56:38 2001
   5 @@ -1,5 +1,5 @@
   6 -#!/bin/csh -f
   7 -# @(#) $Id$ (LBL)
   8 +#!/bin/sh
   9 +# @(#) $Header$ (LBL)
  10  #
  11  # Convert arp.dat to ethers format
  12  #
  13 @@ -12,12 +12,74 @@
  14  #      - append "-old", "-old1", etc. as necessary
  15  #      - sort
  16  #
  17 +# 1999-04-12   KELEMEN Peter <fuji@debian.org>
  18 +#      Use sh(1) instead of csh(1).
  19 +#
  20 +# 2000-03-21   Erik Warmelink <erik@selwerd.nl>
  21 +#      Use next instead of continue in included p.awk.
  22
  23  sort +2rn arp.dat | \
  24      awk 'NF == 4 { print }' | \
  25 -    awk -f p.awk | \
  26 +# 1999-04-12   KELEMEN Peter <fuji@debian.org>
  27 +#    awk -f p.awk | \
  28 +    awk '
  29 +# Only print the first ethernet address seen
  30 +
  31 +{
  32 +       e = $1
  33 +       if (seen[e])
  34 +               next
  35 +       seen[e] = 1
  36 +       print $0
  37 +}
  38 +    ' | \
  39      egrep -v '\.[0-9][0-9]*$' | \
  40      sed -e 's/ .*      /       /' | \
  41 -    awk -f d.awk | \
  42 -    awk -f e.awk | \
  43 +# 1999-04-12   KELEMEN Peter <fuji@debian.org>
  44 +#    awk -f d.awk | \
  45 +    awk '
  46 +# DECnet hacking
  47 +
  48 +BEGIN {
  49 +       n = 0
  50 +       sdecnet = "aa:0:4:"
  51 +       ldecnet = length(sdecnet)
  52 +}
  53 +
  54 +{
  55 +       ++n
  56 +       e[n] = $1
  57 +       h[n] = $2
  58 +       if (sdecnet == substr($1, 1, ldecnet))
  59 +               decnet[$2] = 1
  60 +}
  61 +
  62 +END {
  63 +       for (i = 1; i <= n; ++i) {
  64 +               if (decnet[h[i]] && sdecnet != substr(e[i], 1, ldecnet))
  65 +                       h[i] = h[i] "-ip"
  66 +               print e[i] "\t" h[i]
  67 +       }
  68 +}
  69 +    ' | \
  70 +# 1999-04-12   KELEMEN Peter <fuji@debian.org>
  71 +#    awk -f e.awk | \
  72 +    awk '
  73 +# Add -old suffix to ethers file, as required. Assumed sorted input
  74 +
  75 +{
  76 +       if (!seen[$2]) {
  77 +               seen[$2] = 1
  78 +               print
  79 +               next
  80 +       }
  81 +       h = $2 "-old"
  82 +       s = h
  83 +       for (n = 1; seen[h]; ++n)
  84 +               h = s n
  85 +       seen[h] = 1
  86 +       print $1 "\t" h
  87 +       next
  88 +}
  89 +    ' | \
  90      sort