int uagent_fix(char *buffer, int maxlen) {
	/* makes useragent strings into something 
	 * clean and simple ap@geekz.com.au */
	int x, y=0, len;
	char junk[128];

	/* convert to lowercase */
	strnlower(buffer, maxlen);

	/* trim any leading space off */
	len = strlen(buffer);
	for(x = 0; x < len && x < maxlen; x++)
		if( !isspace(buffer[x]) )
			break;
	if(x > 0)
		strncpy(buffer, &buffer[x], maxlen);

	/* delete any weird characters & duplicate spaces */
	len = strlen(buffer);
	for ( x = 0; x < len && x < maxlen && buffer[x] != 0; x++ )
		if ( ( isspace(buffer[x]) && isspace(buffer[x + 1]) ) || (!isprint(buffer[x]) && !isspace(buffer[x])) )
		{
			strncpy(&buffer[x], &buffer[x + 1], maxlen - x);
			x--;
		}

	/* change mozilla to netscape */
	if( fastcmp(buffer, "mozilla/", 8) ) {
		strncpy(junk, buffer, sizeof(junk) - 1);
		strncpy(junk, &junk[8], sizeof(junk) - 1);
		strncpy(buffer, "netscape ", maxlen);
		strncpy(&buffer[9], junk, maxlen - 9);
	}

	/* change microsoft internet explorer to msie */
	if( fastcmp(buffer, "microsoft internet explorer", 27) ) {
		strncpy(junk, buffer, sizeof(junk) - 1);
		strncpy(junk, &junk[27], sizeof(junk) - 1);
		strncpy(buffer, "msie", maxlen);
		strncpy(&buffer[4], junk, maxlen - 9);
	}

	/* detect comaptibility hack */
	len=strlen(buffer);
	for( x = 0; x < len && x < maxlen; x++ )
		if( buffer[x] == '(' && fastcmp(&buffer[x], "(compatible;", 12) )
			goto chack;

	goto nochack;	/* jump over compatibility hack */

	/* we only get here if we have a compatibility hack on our hands */
	chack:
	x += 13;
	for( ; x < len && x < maxlen; x++ )
	{
		if ( buffer[x] == ';' || buffer[x] == ')' )
			break;
		buffer[y] = buffer[x];
		y++;
	}
	buffer[y] = 0;
	len = strlen(buffer);

	/* check if a mozilla/... was on the end of the compat string (some dumb programmer fucked up) */
	for( x = 0; x < len - 8 && x < maxlen - 7; x++ )
		if ( buffer[x] == 'm' &&
			  buffer[x + 1] == 'o' &&
			  buffer[x + 2] == 'z' &&
			  buffer[x + 3] == 'i' &&
			  buffer[x + 4] == 'l' &&
			  buffer[x + 5] == 'l' &&
			  buffer[x + 6] == 'a' &&
			  buffer[x + 7] == '/' ) buffer[x] = 0;

	/* some msie's come out as msie+4 or msie.4 - change to msie/... */
	if ( buffer[0] == 'm' && buffer[1] == 's' &&
		  buffer[2] == 'i' && buffer[3] == 'e' &&
		  buffer[4] != '/' && !isalnum(buffer[4]) ) buffer[4] = '/';

	nochack:

	/* trim trailing junk in brackets off */
	for( x = 0; x < len && x < maxlen; x++ )
		if( buffer[x] == '(' )
			buffer[x] = 0;

	/* trim trailing spaces off */
	len = strlen(buffer);
	if( maxlen < len ) len = maxlen;
	for( x = len - 1; x >= 1; x-- )
		if ( isspace(buffer[x]) )
			buffer[x] = 0;
		else break;

	/* if msie/ or netscape/ */
	if ( strncmp(buffer, "msie", 4) == 0 ||
		  strncmp(buffer, "netscape", 8) == 0)
	{
		/* remove any crap after the version # */
		len = strlen(buffer);
		for( y = x = 0; x < len && x < maxlen; x++ )
			if ( buffer[x] == ' ' )
			{
				if ( y++ )
				{
					buffer[x] = 0;
					break;
				}
				else buffer[x] = '/';
			}

		/* remove -c... c-... -... and trailing c crap */
		if ( strncmp(buffer, "netscape", 8) == 0 )
		{
			len = strlen(buffer);
			for ( x = 0; x < len && x < maxlen; x++ )
				if ( (buffer[x] == '-' && buffer[x + 1] == 'c') ||
					  (buffer[x] == 'c' && buffer[x + 1] == '-') ||
					  (buffer[x] == '-') )
				{
					buffer[x] = 0; break;
				}

			len = strlen(buffer);
			if ( buffer[x - 1] == 'c' ) buffer[x - 1] = 0;
		}
	}

	/* delete any weird characters and convert _'s to spaces */
	len = strlen(buffer);
	for ( x = 0; x < len && x < maxlen && buffer[x] != 0; x++ )
	{
		if ( buffer[x] >= 'a' && buffer[x] <= 'z' ) /* do nothing */;
		else if ( buffer[x] >= '0' && buffer[x] <= '9' ) /* do nothing */;
		else if ( buffer[x] == '.' || buffer[x] == '/' ||
					 buffer[x] == '-' || buffer[x] == '[' ||
					 buffer[x] == ']' || buffer[x] == ' ') /* do nothing */;
		else if ( buffer[x] == '_' ) buffer[x] = ' ';
		else
		{
			strncpy(&buffer[x], &buffer[x + 1], maxlen - x);
			x--;
		}
	}

	/* trim any leading space off result */
	len = strlen(buffer);
	for( x = 0; x < len && x < maxlen; x++ )
		if( !isspace(buffer[x]) ) break;
	if( x > 0 )
		strncpy(buffer, &buffer[x], maxlen);

	/* anything 1 or 2 chars is considered 'unknown' */
	len = strlen(buffer);
	if ( len <= 2 ) strncpy(buffer, "unknown", maxlen);

	return 1;
}