talink_58.c revision 1.1 
1/*	$NetBSD: talink_58.c,v 1.1 2018/08/12 12:08:17 christos Exp $	*/
2
3/*
4 * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
5 *
6 * This Source Code Form is subject to the terms of the Mozilla Public
7 * License, v. 2.0. If a copy of the MPL was not distributed with this
8 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
9 *
10 * See the COPYRIGHT file distributed with this work for additional
11 * information regarding copyright ownership.
12 */
13
14#ifndef RDATA_GENERIC_TALINK_58_C
15#define RDATA_GENERIC_TALINK_58_C
16
17#define RRTYPE_TALINK_ATTRIBUTES 0
18
19static inline isc_result_t
20fromtext_talink(ARGS_FROMTEXT) {
21	isc_token_t token;
22	dns_name_t name;
23	isc_buffer_t buffer;
24	int i;
25
26	REQUIRE(type == dns_rdatatype_talink);
27
28	UNUSED(type);
29	UNUSED(rdclass);
30	UNUSED(callbacks);
31
32	if (origin == NULL)
33		origin = dns_rootname;
34
35	for (i = 0; i < 2; i++) {
36		RETERR(isc_lex_getmastertoken(lexer, &token,
37					      isc_tokentype_string,
38					      ISC_FALSE));
39
40		dns_name_init(&name, NULL);
41		buffer_fromregion(&buffer, &token.value.as_region);
42		RETTOK(dns_name_fromtext(&name, &buffer, origin,
43					 options, target));
44	}
45
46	return (ISC_R_SUCCESS);
47}
48
49static inline isc_result_t
50totext_talink(ARGS_TOTEXT) {
51	isc_region_t dregion;
52	dns_name_t prev;
53	dns_name_t next;
54	dns_name_t prefix;
55	isc_boolean_t sub;
56
57	REQUIRE(rdata->type == dns_rdatatype_talink);
58	REQUIRE(rdata->length != 0);
59
60	dns_name_init(&prev, NULL);
61	dns_name_init(&next, NULL);
62	dns_name_init(&prefix, NULL);
63
64	dns_rdata_toregion(rdata, &dregion);
65
66	dns_name_fromregion(&prev, &dregion);
67	isc_region_consume(&dregion, name_length(&prev));
68
69	dns_name_fromregion(&next, &dregion);
70	isc_region_consume(&dregion, name_length(&next));
71
72	sub = name_prefix(&prev, tctx->origin, &prefix);
73	RETERR(dns_name_totext(&prefix, sub, target));
74
75	RETERR(str_totext(" ", target));
76
77	sub = name_prefix(&next, tctx->origin, &prefix);
78	return(dns_name_totext(&prefix, sub, target));
79}
80
81static inline isc_result_t
82fromwire_talink(ARGS_FROMWIRE) {
83	dns_name_t prev;
84	dns_name_t next;
85
86	REQUIRE(type == dns_rdatatype_talink);
87
88	UNUSED(type);
89	UNUSED(rdclass);
90
91	dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE);
92
93	dns_name_init(&prev, NULL);
94	dns_name_init(&next, NULL);
95
96	RETERR(dns_name_fromwire(&prev, source, dctx, options, target));
97	return(dns_name_fromwire(&next, source, dctx, options, target));
98}
99
100static inline isc_result_t
101towire_talink(ARGS_TOWIRE) {
102	isc_region_t sregion;
103	dns_name_t prev;
104	dns_name_t next;
105	dns_offsets_t moffsets;
106	dns_offsets_t roffsets;
107
108	REQUIRE(rdata->type == dns_rdatatype_talink);
109	REQUIRE(rdata->length != 0);
110
111	dns_compress_setmethods(cctx, DNS_COMPRESS_NONE);
112
113	dns_name_init(&prev, moffsets);
114	dns_name_init(&next, roffsets);
115
116	dns_rdata_toregion(rdata, &sregion);
117
118	dns_name_fromregion(&prev, &sregion);
119	isc_region_consume(&sregion, name_length(&prev));
120	RETERR(dns_name_towire(&prev, cctx, target));
121
122	dns_name_fromregion(&next, &sregion);
123	isc_region_consume(&sregion, name_length(&next));
124	return(dns_name_towire(&next, cctx, target));
125}
126
127static inline int
128compare_talink(ARGS_COMPARE) {
129	isc_region_t region1;
130	isc_region_t region2;
131
132	REQUIRE(rdata1->type == rdata2->type);
133	REQUIRE(rdata1->rdclass == rdata2->rdclass);
134	REQUIRE(rdata1->type == dns_rdatatype_talink);
135	REQUIRE(rdata1->length != 0);
136	REQUIRE(rdata2->length != 0);
137
138	dns_rdata_toregion(rdata1, &region1);
139	dns_rdata_toregion(rdata2, &region2);
140	return (isc_region_compare(&region1, &region2));
141}
142
143static inline isc_result_t
144fromstruct_talink(ARGS_FROMSTRUCT) {
145	dns_rdata_talink_t *talink = source;
146	isc_region_t region;
147
148	REQUIRE(type == dns_rdatatype_talink);
149	REQUIRE(source != NULL);
150	REQUIRE(talink->common.rdtype == type);
151	REQUIRE(talink->common.rdclass == rdclass);
152
153	UNUSED(type);
154	UNUSED(rdclass);
155
156	dns_name_toregion(&talink->prev, &region);
157	RETERR(isc_buffer_copyregion(target, &region));
158	dns_name_toregion(&talink->next, &region);
159	return(isc_buffer_copyregion(target, &region));
160}
161
162static inline isc_result_t
163tostruct_talink(ARGS_TOSTRUCT) {
164	isc_region_t region;
165	dns_rdata_talink_t *talink = target;
166	dns_name_t name;
167	isc_result_t result;
168
169	REQUIRE(rdata->type == dns_rdatatype_talink);
170	REQUIRE(target != NULL);
171	REQUIRE(rdata->length != 0);
172
173	talink->common.rdclass = rdata->rdclass;
174	talink->common.rdtype = rdata->type;
175	ISC_LINK_INIT(&talink->common, link);
176
177	dns_rdata_toregion(rdata, &region);
178
179	dns_name_init(&name, NULL);
180	dns_name_fromregion(&name, &region);
181	isc_region_consume(&region, name_length(&name));
182	dns_name_init(&talink->prev, NULL);
183	RETERR(name_duporclone(&name, mctx, &talink->prev));
184
185	dns_name_fromregion(&name, &region);
186	isc_region_consume(&region, name_length(&name));
187	dns_name_init(&talink->next, NULL);
188	result = name_duporclone(&name, mctx, &talink->next);
189	if (result != ISC_R_SUCCESS)
190		goto cleanup;
191
192	talink->mctx = mctx;
193	return (ISC_R_SUCCESS);
194
195 cleanup:
196	if (mctx != NULL)
197		dns_name_free(&talink->prev, mctx);
198	return (ISC_R_NOMEMORY);
199}
200
201static inline void
202freestruct_talink(ARGS_FREESTRUCT) {
203	dns_rdata_talink_t *talink = source;
204
205	REQUIRE(source != NULL);
206	REQUIRE(talink->common.rdtype == dns_rdatatype_talink);
207
208	if (talink->mctx == NULL)
209		return;
210
211	dns_name_free(&talink->prev, talink->mctx);
212	dns_name_free(&talink->next, talink->mctx);
213	talink->mctx = NULL;
214}
215
216static inline isc_result_t
217additionaldata_talink(ARGS_ADDLDATA) {
218	UNUSED(rdata);
219	UNUSED(add);
220	UNUSED(arg);
221
222	REQUIRE(rdata->type == dns_rdatatype_talink);
223
224	return (ISC_R_SUCCESS);
225}
226
227static inline isc_result_t
228digest_talink(ARGS_DIGEST) {
229	isc_region_t r;
230
231	REQUIRE(rdata->type == dns_rdatatype_talink);
232
233	dns_rdata_toregion(rdata, &r);
234	return ((digest)(arg, &r));
235}
236
237static inline isc_boolean_t
238checkowner_talink(ARGS_CHECKOWNER) {
239
240	REQUIRE(type == dns_rdatatype_talink);
241
242	UNUSED(name);
243	UNUSED(type);
244	UNUSED(rdclass);
245	UNUSED(wildcard);
246
247	return (ISC_TRUE);
248}
249
250static inline isc_boolean_t
251checknames_talink(ARGS_CHECKNAMES) {
252
253	REQUIRE(rdata->type == dns_rdatatype_talink);
254
255	UNUSED(bad);
256	UNUSED(owner);
257
258	return (ISC_TRUE);
259}
260
261static inline int
262casecompare_talink(ARGS_COMPARE) {
263	return (compare_talink(rdata1, rdata2));
264}
265
266#endif	/* RDATA_GENERIC_TALINK_58_C */
267