/*
 * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
 *
 * Permission to use, copy, modify, and/or 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 ISC DISCLAIMS ALL WARRANTIES WITH
 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS.  IN NO EVENT SHALL ISC 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.
 */

#ifndef GENERIC_OPT_41_H
#define GENERIC_OPT_41_H 1

/* $Id: opt_41.h,v 1.18 2007/06/19 23:47:17 tbox Exp $ */

/*!
 *  \brief Per RFC2671 */

typedef struct dns_rdata_opt_opcode {
		isc_uint16_t	opcode;
		isc_uint16_t	length;
		unsigned char	*data;
} dns_rdata_opt_opcode_t;

typedef struct dns_rdata_opt {
	dns_rdatacommon_t	common;
	isc_mem_t		*mctx;
	unsigned char		*options;
	isc_uint16_t		length;
	/* private */
	isc_uint16_t		offset;
} dns_rdata_opt_t;

/*
 * ISC_LANG_BEGINDECLS and ISC_LANG_ENDDECLS are already done
 * via rdatastructpre.h and rdatastructsuf.h.
 */

isc_result_t
dns_rdata_opt_first(dns_rdata_opt_t *);

isc_result_t
dns_rdata_opt_next(dns_rdata_opt_t *);

isc_result_t
dns_rdata_opt_current(dns_rdata_opt_t *, dns_rdata_opt_opcode_t *);

#endif /* GENERIC_OPT_41_H */
