1 /*	$NetBSD: rdatatype.h,v 1.4 2014/12/10 04:37:58 christos Exp $	*/
2 
3 /*
4  * Copyright (C) 2004-2008  Internet Systems Consortium, Inc. ("ISC")
5  * Copyright (C) 1998-2001  Internet Software Consortium.
6  *
7  * Permission to use, copy, modify, and/or distribute this software for any
8  * purpose with or without fee is hereby granted, provided that the above
9  * copyright notice and this permission notice appear in all copies.
10  *
11  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
12  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
13  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
14  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
15  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
16  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17  * PERFORMANCE OF THIS SOFTWARE.
18  */
19 
20 /* Id: rdatatype.h,v 1.26 2008/09/25 04:02:39 tbox Exp  */
21 
22 #ifndef DNS_RDATATYPE_H
23 #define DNS_RDATATYPE_H 1
24 
25 /*! \file dns/rdatatype.h */
26 
27 #include <isc/lang.h>
28 
29 #include <dns/types.h>
30 
31 ISC_LANG_BEGINDECLS
32 
33 isc_result_t
34 dns_rdatatype_fromtext(dns_rdatatype_t *typep, isc_textregion_t *source);
35 /*%<
36  * Convert the text 'source' refers to into a DNS rdata type.
37  *
38  * Requires:
39  *\li	'typep' is a valid pointer.
40  *
41  *\li	'source' is a valid text region.
42  *
43  * Returns:
44  *\li	ISC_R_SUCCESS			on success
45  *\li	DNS_R_UNKNOWN			type is unknown
46  */
47 
48 isc_result_t
49 dns_rdatatype_totext(dns_rdatatype_t type, isc_buffer_t *target);
50 /*%<
51  * Put a textual representation of type 'type' into 'target'.
52  *
53  * Requires:
54  *\li	'type' is a valid type.
55  *
56  *\li	'target' is a valid text buffer.
57  *
58  * Ensures,
59  *	if the result is success:
60  *\li		The used space in 'target' is updated.
61  *
62  * Returns:
63  *\li	#ISC_R_SUCCESS			on success
64  *\li	#ISC_R_NOSPACE			target buffer is too small
65  */
66 
67 void
68 dns_rdatatype_format(dns_rdatatype_t rdtype,
69 		     char *array, unsigned int size);
70 /*%<
71  * Format a human-readable representation of the type 'rdtype'
72  * into the character array 'array', which is of size 'size'.
73  * The resulting string is guaranteed to be null-terminated.
74  */
75 
76 #define DNS_RDATATYPE_FORMATSIZE sizeof("NSEC3PARAM")
77 
78 /*%<
79  * Minimum size of array to pass to dns_rdatatype_format().
80  * May need to be adjusted if a new RR type with a very long
81  * name is defined.
82  */
83 
84 ISC_LANG_ENDDECLS
85 
86 #endif /* DNS_RDATATYPE_H */
87