/*
 * bugEyed 10-18-99
 * This will run through a text file and take out all of the IP's it can find.
 * I know that there are some problems with it, but it works for the purposes
 * I need it for. The problems I know of are:
 *    sometimes you might see an IP like 14202.234.10.1
 *    - this problem results when before the actual IP you have something like
 *      domain214.com has address 202.234.10.1
 *      I'm working on how to fix this, but for now it is easy to spot out of 
 *      of the output file and you can just delete the uneeded numbers
 *    - The other problem is the array size: It is only big enough to hold 15
 *      characters. But when something like above occurs then you get 
 *      an overflow. Just change the array to something bigger or find the 
 *      line that is causing the problem and make it shorter.
 * 
 * If you find any more problems just give me an email letting me know 
 * what it is. You can email me at bbugeyed@hotmail.com
 * /
#include <iostream.h>
#include <fstream.h>

int main ( int argc, char* argv[] )  {
   ifstream inFile;
   ofstream outFile;
   char oldInput = '\n';
   char address[15], input, dummy;
   int location = 0;
   
   // check to see if in correct format
   if ( argc != 3 ) {
      cout << "Usage: " << argv[0] << " 'input file' 'output file'\n";
      return 1;
   }
   
   inFile.open(argv[1]);
   outFile.open(argv[2]);
   if ( !inFile || !outFile ) {
      cout << "Can not open file\n";
      return 1;
   }
   for ( int x = 0; x < 15; x++ )
     address[x] = 't';
   
   // 46.   48-57
   while ( inFile ) {
      inFile.get(input);
      if ( input == 46 || oldInput == ' ' || input >= 48 && input <= 57 
	  && oldInput >= 48 && oldInput <= 57 || oldInput == 46) {
	 inFile.get(dummy);
	 if ( dummy == 46 || dummy >= 48 && dummy <= 57 || dummy == '\n') {
	    address[location] = input;
	    location++;
	    inFile.putback(dummy);  // put it back on i/o stream
	 }
      }
   
      if ( input == '\n'  && oldInput != '\n') {
	 int y = 0;
	 
	 while ( address[y] != 't' ) {
	    outFile << address[y];
	    y++;
	 }
	 outFile << endl;
	 location = 0;
	 for ( y = 0; y < 15; y++ ) 
	   address[y] = 't';
      }
      oldInput = input;
   }
   return 0;
}