netdiscover-debian/update-oui-database.sh

   1 #!/bin/bash
   2
   3 # Script for generation "oui.h" file (netdiscover program at
   4 #   http://nixgeneration.com/~jaime/netdiscover/
   5 #
   6 # Obtain data from internet source at:
   7 # lynx -source  http://standards.ieee.org/regauth/oui/oui.txt >oui.txt
   8 #
   9 # Syntax: oui.txt2oui.h_netdiscover
  10 #
  11 # Script generate src/oui.h file.
  12 #
  13 # 16-May-2009 Frantisek Hanzlik <franta@hanzlici.cz> (Original author)
  14 # 07-Jun-2001 Larry Reznick <lreznick@rezfam.com> (fixes & code clean)
  15 #**********************************************************************
  16 #
  17 #  This program is free software; you can redistribute it and/or modify
  18 #  it under the terms of the GNU General Public License as published by
  19 #  the Free Software Foundation; either version 3 of the License, or
  20 #  (at your option) any later version.
  21 #
  22
  23 JA=${0##*/}
  24 DATE=$(date +'%Y%m%d')
  25 ORIGF=oui.txt
  26 DSTD=src
  27 DSTF=oui.h
  28 URL="http://standards.ieee.org/regauth/oui/oui.txt"
  29 TMPF=$ORIGF-$DATE
  30 AWK="gawk"
  31 #AWK="mawk"
  32 #AWK="awk"
  33
  34 [ -d "$DSTD" ] || { echo "$JA: Destdir \"$DSTD\" not exist!"; exit 1; }
  35 #if ! [ -f "$TMPF" -a -s "$TMPF" ]; then
  36 #   echo "Trying download \"$ORIGF\" with lynx..."
  37 #   if ! lynx -source $URL >"$TMPF"; then
  38 #      echo "Trying download \"$ORIGF\" with elinks..."
  39 #      if ! elinks -source $URL >"$TMPF"; then
  40 #         echo "Trying download \"$ORIGF\" with wget..."
  41 #         if ! wget --quiet --output-document="$TMPF" $URL; then
  42 #            echo "$JA: Cann't obtain \"$URL\"!"
  43 #            exit 1
  44 #         fi
  45 #      fi
  46 #   fi
  47 #else
  48 #   echo "\"$TMPF\" already exist, skipping download..."
  49 #fi
  50 if ! [ -f "$TMPF" -a -s "$TMPF" ]; then
  51   echo -n "Trying download \"$ORIGF\" with lynx..."
  52   if [[ -x /usr/bin/lynx ]]; then
  53     lynx -source $URL >"$TMPF"
  54   else
  55      echo -n " with elinks..."
  56      if [[ -x /usr/bin/elinks ]]; then
  57        elinks -source $URL >"$TMPF"
  58      else
  59         echo " with wget..."
  60         if [[ -x /usr/bin/wget ]]; then
  61           wget --quiet --output-document="$TMPF" $URL
  62         else
  63            echo "$JA: Can't obtain \"$URL\"!"
  64            exit 1
  65         fi
  66      fi
  67   fi
  68 else
  69    echo -n "\"$TMPF\" already exist, skipping download..."
  70 fi
  71 echo ""
  72
  73 echo "Process oui.txt (\"$TMPF\")..."
  74
  75 # if RS is null string, then records are separated by blank lines...
  76 # but this isn't true in oui.txt
  77
  78 LANG=C $AWK --re-interval --assign URL="$URL" '
  79 BEGIN {
  80         RS = "\n([[:blank:]]*\n)+";
  81         FS = "\n";
  82         MI = "";
  83         NN = 0;
  84         printf( \
  85           "/*\n" \
  86           " * Organizationally Unique Identifier list at date %s\n" \
  87           " * Automatically generated from %s\n" \
  88           " * For Netdiscover by Jaime Penalba\n" \
  89           " *\n" \
  90           " */\n" \
  91           "\n" \
  92           "struct oui {\n" \
  93           "   char *prefix;   /* 24 bit global prefix */\n" \
  94           "   char *vendor;   /* Vendor id string     */\n" \
  95           "};\n" \
  96           "\n" \
  97           "struct oui oui_table[] = {\n", strftime("%d-%b-%Y"), URL);
  98 }
  99
 100 (/[[:xdigit:]]{6}/) {
 101         N1 = split($1,A1,/\t+/);
 102         N2 = split($2,A2,/\t+/);
 103         N3 = split(A2[1],PN,/ +/);
 104 #       printf("%i,%i,%i>%s<>%s<>%s< $1=%s<, $2=%s<, $3=%s<.\n",N1,N2,N3,PN[1],A1[2],A2[2],$1,$2,$3);
 105 #       V1 = gensub(/^[[:punct:]]+/,"",1,A1[2]);
 106 #       V2 = gensub(/^[[:punct:]]+/,"",1,A2[2]);
 107         V1 = gensub(/^[[:blank:]]+/,"",1,A1[2]);
 108         V2 = gensub(/^[[:blank:]]+/,"",1,A2[2]);
 109         V0 = V2;
 110         if (V0 ~ /^[[:blank:]]*$/) {
 111                 V0 = V1;
 112         }
 113         V = gensub(/\"/,"\\\\\"","g",V0);
 114         if (MI != "")
 115                 printf("   { \"%s\", \"%s\" },\n", MI, MV);
 116         MI = PN[1];
 117         MV = V;
 118         NN++;
 119 }
 120
 121 END {
 122         printf( \
 123           "   { \"%s\", \"%s\" },\n" \
 124           "   { NULL, NULL }\n" \
 125           "};\n" \
 126           "\n" \
 127           "// Total %i items.\n", MI, MV, NN);
 128 }' <"$TMPF" >"$DSTD/$DSTF"
 129
 130 if [ $? -ne 0 ]; then
 131   echo "$JA: $TMPF parsing error !"
 132   exit 1
 133 else
 134   echo "All OK"
 135   ls -oh oui.txt-* src/oui.h
 136 fi