1/*
2 * Copyright (C) 2004-2008  Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (C) 1998-2001  Internet Software Consortium.
4 *
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
10 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
11 * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
13 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
14 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
15 * PERFORMANCE OF THIS SOFTWARE.
16 */
17
18/* $Id: rdatatype.h,v 1.26 2008/09/25 04:02:39 tbox Exp $ */
19
20#ifndef DNS_RDATATYPE_H
21#define DNS_RDATATYPE_H 1
22
23/*! \file dns/rdatatype.h */
24
25#include <isc/lang.h>
26
27#include <dns/types.h>
28
29ISC_LANG_BEGINDECLS
30
31isc_result_t
32dns_rdatatype_fromtext(dns_rdatatype_t *typep, isc_textregion_t *source);
33/*%<
34 * Convert the text 'source' refers to into a DNS rdata type.
35 *
36 * Requires:
37 *\li	'typep' is a valid pointer.
38 *
39 *\li	'source' is a valid text region.
40 *
41 * Returns:
42 *\li	ISC_R_SUCCESS			on success
43 *\li	DNS_R_UNKNOWN			type is unknown
44 */
45
46isc_result_t
47dns_rdatatype_totext(dns_rdatatype_t type, isc_buffer_t *target);
48/*%<
49 * Put a textual representation of type 'type' into 'target'.
50 *
51 * Requires:
52 *\li	'type' is a valid type.
53 *
54 *\li	'target' is a valid text buffer.
55 *
56 * Ensures,
57 *	if the result is success:
58 *\li		The used space in 'target' is updated.
59 *
60 * Returns:
61 *\li	#ISC_R_SUCCESS			on success
62 *\li	#ISC_R_NOSPACE			target buffer is too small
63 */
64
65void
66dns_rdatatype_format(dns_rdatatype_t rdtype,
67		     char *array, unsigned int size);
68/*%<
69 * Format a human-readable representation of the type 'rdtype'
70 * into the character array 'array', which is of size 'size'.
71 * The resulting string is guaranteed to be null-terminated.
72 */
73
74#define DNS_RDATATYPE_FORMATSIZE sizeof("NSEC3PARAM")
75
76/*%<
77 * Minimum size of array to pass to dns_rdatatype_format().
78 * May need to be adjusted if a new RR type with a very long
79 * name is defined.
80 */
81
82ISC_LANG_ENDDECLS
83
84#endif /* DNS_RDATATYPE_H */
85