/*
 * Copyright (C) 1999, 2000  Internet Software Consortium.
 * 
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
 * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
 * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
 * SOFTWARE.
 */

/* $Id: resultclass.h,v 1.7 2000/06/22 21:58:00 tale Exp $ */

#ifndef ISC_RESULTCLASS_H
#define ISC_RESULTCLASS_H 1

/*****
 ***** Registry of Predefined Result Type Classes
 *****/

/*
 * A result class number is an unsigned 16 bit number.  Each class may
 * contain up to 65536 results.  A result code is formed by adding the
 * result number within the class to the class number multiplied by 65536.
 */

#define ISC_RESULTCLASS_FROMNUM(num)		((num) << 16)
#define ISC_RESULTCLASS_TONUM(rclass)		((rclass) >> 16)
#define ISC_RESULTCLASS_SIZE			65536
#define ISC_RESULTCLASS_INCLASS(rclass, result) \
	((rclass) == ((result) & 0xFFFF0000))

/*
 * Classes < 1024 are reserved for ISC use.
 */

#define	ISC_RESULTCLASS_ISC		ISC_RESULTCLASS_FROMNUM(0)
#define	ISC_RESULTCLASS_DNS		ISC_RESULTCLASS_FROMNUM(1)
#define	ISC_RESULTCLASS_DST		ISC_RESULTCLASS_FROMNUM(2)
#define	ISC_RESULTCLASS_DNSRCODE	ISC_RESULTCLASS_FROMNUM(3)
#define	ISC_RESULTCLASS_OMAPI		ISC_RESULTCLASS_FROMNUM(4)

/*
 * Result classes >= 1024 and <= 65535 are reserved for application use.
 */

#endif /* ISC_RESULTCLASS_H */
