geoip code

GeoIP.h

//...


typedef enum {
	GEOIP_CHARSET_ISO_8859_1 = 0,
	GEOIP_CHARSET_UTF8       = 1
} GeoIPCharset;

//...

GeoIPCity.c

// ...
	/* get city */
	while (record_buf[str_length] != '\0')
		str_length++;
	if (str_length > 0) {
		if ( gi->charset == GEOIP_CHARSET_UTF8 ) {
			record->city = _iso_8859_1__utf8( (const char * ) record_buf );
		} else {
			record->city = malloc(str_length+1);
			strncpy(record->city, ( const char * ) record_buf, str_length+1);
		}
	}

udp-filter.c

//...

		case CITY:{
			GeoIPRecord *grecord;
			char *city;
			int mustFreeCity = 0;
			grecord = GeoIP_record_by_addr(gi, ipaddr);
			if (grecord !=NULL){
				if (grecord->city == NULL){
					strncpy(area, unknown_geography, MAX_BUF_LENGTH);
				} else {
					int len = strlen(grecord->city);
					if (grecord->charset == 0) {
						city = GeoIP_iso_8859_1__utf8(grecord->city);
						mustFreeCity = 1;
					} else {
						city = grecord->city;
					}