programs/_secretcensor/_secretcensor.in

   1 #! /bin/sh
   2 # implements secret censoring for barf
   3 # Copyright (C) 1999  Henry Spencer.
   4 #
   5 # This program is free software; you can redistribute it and/or modify it
   6 # under the terms of the GNU General Public License as published by the
   7 # Free Software Foundation; either version 2 of the License, or (at your
   8 # option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
   9 #
  10 # This program is distributed in the hope that it will be useful, but
  11 # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  12 # or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13 # for more details.
  14 #
  15 # RCSID $Id: _secretcensor.in,v 1.1 2004/03/15 20:35:27 as Exp $
  16
  17 usage="Usage: $0 [file ...]"
  18 me="ipsec _secretcensor"
  19
  20 for dummy
  21 do
  22         case "$1" in
  23         --help)         echo "$usage" ; exit 0  ;;
  24         --version)      echo "$me $IPSEC_VERSION" ; exit 0              ;;
  25         --)             shift ; break           ;;
  26         -*)             echo "$0: unknown option \`$1'" >&2 ; exit 2    ;;
  27         *)              break                   ;;
  28         esac
  29         shift
  30 done
  31
  32 awk '   function cool(hot,   q, cooled, run) {
  33                 # warning:  may destroy input line!
  34                 q = "'"'"'"     # single quote
  35                 if (hot ~ q)
  36                         return "[cannot be summed]"
  37                 if (hot ~ /^0s/)
  38                         return "[keyid " substr(hot, 3, 9) "]"
  39                 run = "echo " q hot q " | md5sum"
  40                 run | getline
  41                 close(run)
  42                 return "[sums to " substr($1, 1, 4) "...]"
  43         }
  44         /"/ {
  45                 i = match($0, /"[^"]+"/)
  46                 cold1 = substr($0, 1, i)
  47                 cold2 = substr($0, i+RLENGTH-1)
  48                 hot = substr($0, i+1, RLENGTH-2)
  49                 print cold1 cool(hot) cold2
  50                 next
  51         }
  52         /#pubkey=/ {
  53                 i = match($0, /^.*#pubkey=/)
  54                 i += RLENGTH-1
  55                 cold = substr($0, 1, i)
  56                 hot = substr($0, i+1)
  57                 print cold cool(hot)
  58                 next
  59         }
  60         /#IN KEY / {
  61                 i = match($0, /^.*[ \t][^ \t]/)
  62                 i += RLENGTH-2
  63                 cold = substr($0, 1, i)
  64                 hot = substr($0, i+1)
  65                 print cold cool("0s" hot)
  66                 next
  67         }
  68         /^[ \t]+(Modulus|P[a-z]+Exponent|Prime[12]|Exponent[12]|Coefficient):/ {
  69                 i = match($0, /^[^:]*:[ \t]*/)
  70                 i += RLENGTH-1
  71                 cold = substr($0, 1, i)
  72                 print cold "[...]"
  73                 next
  74         }
  75         { print }' $*