iputils.c

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#include <headers.h>
#include <datatypes.h>
#include <options.h>
#include <utils.h>
 
int split_ip( char *text, u8b *dest, int place )
{
  int dotcount;
 
  /* Don't touch this, unless you like pointer aritmethic */
 
  *dest = 0;
 
  if( !text )
    return -1;
 
  for( dotcount = 0; (dotcount < place) && ( text ); text++ )
      if( *text == '.' )
    dotcount++;
 
  if( !text )
    return -2;
 
  while(( *text != '.' ) && ( *text != '\0' ))
    {
      *dest *= 10;
      *dest += (u8b)(*text-48);
      /* 48 is not a hack, is just the code of 0 */
      text++;
    }
 
  return 0;
}
 
int get_ip( char *text, u32b *dest )
{
  /* Don't touch this, unless you like pointer aritmethic */
 
  *dest = 0;
 
  if( !text )
    return -1;
 
  while( *text != '\0' )
    {
      if( *text == '.' )
    {
      *dest = *dest << 8;
      text++;
      continue;
    }
      *dest *= 10;
      *dest += (u8b)(*text-48);
      /* 48 is not a hack, is just the code of 0 */
      text++;
    }
 
  return 0;
}