1 /* $NetBSD: mf_4.c,v 1.1 2024/02/18 20:57:42 christos Exp $ */
2
3 /*
4 * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
5 *
6 * SPDX-License-Identifier: MPL-2.0
7 *
8 * This Source Code Form is subject to the terms of the Mozilla Public
9 * License, v. 2.0. If a copy of the MPL was not distributed with this
10 * file, you can obtain one at https://mozilla.org/MPL/2.0/.
11 *
12 * See the COPYRIGHT file distributed with this work for additional
13 * information regarding copyright ownership.
14 */
15
16 #ifndef RDATA_GENERIC_MF_4_C
17 #define RDATA_GENERIC_MF_4_C
18
19 #define RRTYPE_MF_ATTRIBUTES (0)
20
21 static isc_result_t
fromtext_mf(ARGS_FROMTEXT)22 fromtext_mf(ARGS_FROMTEXT) {
23 isc_token_t token;
24 dns_name_t name;
25 isc_buffer_t buffer;
26
27 REQUIRE(type == dns_rdatatype_mf);
28
29 UNUSED(type);
30 UNUSED(rdclass);
31 UNUSED(callbacks);
32
33 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
34 false));
35
36 dns_name_init(&name, NULL);
37 buffer_fromregion(&buffer, &token.value.as_region);
38 if (origin == NULL) {
39 origin = dns_rootname;
40 }
41 RETTOK(dns_name_fromtext(&name, &buffer, origin, options, target));
42 return (ISC_R_SUCCESS);
43 }
44
45 static isc_result_t
totext_mf(ARGS_TOTEXT)46 totext_mf(ARGS_TOTEXT) {
47 isc_region_t region;
48 dns_name_t name;
49 dns_name_t prefix;
50 bool sub;
51
52 REQUIRE(rdata->type == dns_rdatatype_mf);
53 REQUIRE(rdata->length != 0);
54
55 dns_name_init(&name, NULL);
56 dns_name_init(&prefix, NULL);
57
58 dns_rdata_toregion(rdata, ®ion);
59 dns_name_fromregion(&name, ®ion);
60
61 sub = name_prefix(&name, tctx->origin, &prefix);
62
63 return (dns_name_totext(&prefix, sub, target));
64 }
65
66 static isc_result_t
fromwire_mf(ARGS_FROMWIRE)67 fromwire_mf(ARGS_FROMWIRE) {
68 dns_name_t name;
69
70 REQUIRE(type == dns_rdatatype_mf);
71
72 UNUSED(type);
73 UNUSED(rdclass);
74
75 dns_decompress_setmethods(dctx, DNS_COMPRESS_GLOBAL14);
76
77 dns_name_init(&name, NULL);
78 return (dns_name_fromwire(&name, source, dctx, options, target));
79 }
80
81 static isc_result_t
towire_mf(ARGS_TOWIRE)82 towire_mf(ARGS_TOWIRE) {
83 dns_name_t name;
84 dns_offsets_t offsets;
85 isc_region_t region;
86
87 REQUIRE(rdata->type == dns_rdatatype_mf);
88 REQUIRE(rdata->length != 0);
89
90 dns_compress_setmethods(cctx, DNS_COMPRESS_GLOBAL14);
91
92 dns_name_init(&name, offsets);
93 dns_rdata_toregion(rdata, ®ion);
94 dns_name_fromregion(&name, ®ion);
95
96 return (dns_name_towire(&name, cctx, target));
97 }
98
99 static int
compare_mf(ARGS_COMPARE)100 compare_mf(ARGS_COMPARE) {
101 dns_name_t name1;
102 dns_name_t name2;
103 isc_region_t region1;
104 isc_region_t region2;
105
106 REQUIRE(rdata1->type == rdata2->type);
107 REQUIRE(rdata1->rdclass == rdata2->rdclass);
108 REQUIRE(rdata1->type == dns_rdatatype_mf);
109 REQUIRE(rdata1->length != 0);
110 REQUIRE(rdata2->length != 0);
111
112 dns_name_init(&name1, NULL);
113 dns_name_init(&name2, NULL);
114
115 dns_rdata_toregion(rdata1, ®ion1);
116 dns_rdata_toregion(rdata2, ®ion2);
117
118 dns_name_fromregion(&name1, ®ion1);
119 dns_name_fromregion(&name2, ®ion2);
120
121 return (dns_name_rdatacompare(&name1, &name2));
122 }
123
124 static isc_result_t
fromstruct_mf(ARGS_FROMSTRUCT)125 fromstruct_mf(ARGS_FROMSTRUCT) {
126 dns_rdata_mf_t *mf = source;
127 isc_region_t region;
128
129 REQUIRE(type == dns_rdatatype_mf);
130 REQUIRE(mf != NULL);
131 REQUIRE(mf->common.rdtype == type);
132 REQUIRE(mf->common.rdclass == rdclass);
133
134 UNUSED(type);
135 UNUSED(rdclass);
136
137 dns_name_toregion(&mf->mf, ®ion);
138 return (isc_buffer_copyregion(target, ®ion));
139 }
140
141 static isc_result_t
tostruct_mf(ARGS_TOSTRUCT)142 tostruct_mf(ARGS_TOSTRUCT) {
143 dns_rdata_mf_t *mf = target;
144 isc_region_t r;
145 dns_name_t name;
146
147 REQUIRE(rdata->type == dns_rdatatype_mf);
148 REQUIRE(mf != NULL);
149 REQUIRE(rdata->length != 0);
150
151 mf->common.rdclass = rdata->rdclass;
152 mf->common.rdtype = rdata->type;
153 ISC_LINK_INIT(&mf->common, link);
154
155 dns_name_init(&name, NULL);
156 dns_rdata_toregion(rdata, &r);
157 dns_name_fromregion(&name, &r);
158 dns_name_init(&mf->mf, NULL);
159 RETERR(name_duporclone(&name, mctx, &mf->mf));
160 mf->mctx = mctx;
161 return (ISC_R_SUCCESS);
162 }
163
164 static void
freestruct_mf(ARGS_FREESTRUCT)165 freestruct_mf(ARGS_FREESTRUCT) {
166 dns_rdata_mf_t *mf = source;
167
168 REQUIRE(mf != NULL);
169 REQUIRE(mf->common.rdtype == dns_rdatatype_mf);
170
171 if (mf->mctx == NULL) {
172 return;
173 }
174 dns_name_free(&mf->mf, mf->mctx);
175 mf->mctx = NULL;
176 }
177
178 static isc_result_t
additionaldata_mf(ARGS_ADDLDATA)179 additionaldata_mf(ARGS_ADDLDATA) {
180 dns_name_t name;
181 dns_offsets_t offsets;
182 isc_region_t region;
183
184 REQUIRE(rdata->type == dns_rdatatype_mf);
185
186 dns_name_init(&name, offsets);
187 dns_rdata_toregion(rdata, ®ion);
188 dns_name_fromregion(&name, ®ion);
189
190 return ((add)(arg, &name, dns_rdatatype_a));
191 }
192
193 static isc_result_t
digest_mf(ARGS_DIGEST)194 digest_mf(ARGS_DIGEST) {
195 isc_region_t r;
196 dns_name_t name;
197
198 REQUIRE(rdata->type == dns_rdatatype_mf);
199
200 dns_rdata_toregion(rdata, &r);
201 dns_name_init(&name, NULL);
202 dns_name_fromregion(&name, &r);
203
204 return (dns_name_digest(&name, digest, arg));
205 }
206
207 static bool
checkowner_mf(ARGS_CHECKOWNER)208 checkowner_mf(ARGS_CHECKOWNER) {
209 REQUIRE(type == dns_rdatatype_mf);
210
211 UNUSED(name);
212 UNUSED(type);
213 UNUSED(rdclass);
214 UNUSED(wildcard);
215
216 return (true);
217 }
218
219 static bool
checknames_mf(ARGS_CHECKNAMES)220 checknames_mf(ARGS_CHECKNAMES) {
221 REQUIRE(rdata->type == dns_rdatatype_mf);
222
223 UNUSED(rdata);
224 UNUSED(owner);
225 UNUSED(bad);
226
227 return (true);
228 }
229
230 static int
casecompare_mf(ARGS_COMPARE)231 casecompare_mf(ARGS_COMPARE) {
232 return (compare_mf(rdata1, rdata2));
233 }
234
235 #endif /* RDATA_GENERIC_MF_4_C */
236