tools/btranslate.cc

   1 /*
   2     Copyright (C) 2005-2008, Net Direct Inc. (http://www.netdirect.ca/)
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13     See the GNU General Public License in the COPYING file at the
  14     root directory of this project for more details.
  15 */
  16
  17 #include <iostream>
  18 #include <iomanip>
  19 #include <sstream>
  20 #include <string.h>
  21 #include <stdlib.h>
  22 #include <limits.h>
  23
  24 using namespace std;
  25
  26 bool IsHexData(const char *str)
  27 {
  28         for( int i = 0; i < 4 && *str; str++, i++ )
  29                 if( *str != ' ' )
  30                         return false;
  31
  32         for( int i = 0; i < 8 && *str; str++, i++ )
  33                 if( !isdigit(*str) && !(*str >= 'a' && *str <= 'f') )
  34                         return false;
  35
  36         if( *str != ':' )
  37                 return false;
  38
  39         return true;
  40 }
  41
  42 void PrintHex(const char *str)
  43 {
  44         cout << setiosflags(ios::left) << setw(14 + 16 * 3 + 1) << str;
  45         cout << setw(0);
  46         str += 14;
  47         char *endpos = (char*) str;
  48         while( *endpos ) {
  49                 long c = strtol(str, &endpos, 16);
  50                 if( c == LONG_MIN || c == LONG_MAX )
  51                         break;
  52                 if( isprint(c) )
  53                         cout << (char)c;
  54                 else
  55                         cout << '.';
  56                 str = endpos;
  57         }
  58         cout << '\n';
  59 }
  60
  61 int main()
  62 {
  63         cout.sync_with_stdio(false);
  64
  65         while( cin ) {
  66                 char buff[1024];
  67                 cin.getline(buff, sizeof(buff));
  68                 if( IsHexData(buff) ) {
  69                         // strip whitespace
  70                         size_t sln = strlen(buff);
  71                         while( sln && (buff[sln] == 0 || isspace(buff[sln])) ){
  72                                 buff[sln--] = 0;
  73                         }
  74                         PrintHex(buff);
  75                 }
  76                 else {
  77                         cout << buff << "\n";
  78                 }
  79
  80                 if( cin.fail() && !cin.eof() ) {
  81                         // getline busted its buffer... discard the
  82                         // rest of the line.
  83                         while( cin.fail() && !cin.eof() ) {
  84                                 cin.clear();
  85                                 cin.getline(buff, sizeof(buff));
  86                         }
  87                 }
  88         }
  89 }
  90