1 /* $NetBSD: dname_39.c,v 1.4 2014/12/10 04:37:59 christos Exp $ */
2
3 /*
4 * Copyright (C) 2004, 2007, 2009 Internet Systems Consortium, Inc. ("ISC")
5 * Copyright (C) 1999-2001 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: dname_39.c,v 1.40 2009/12/04 22:06:37 tbox Exp */
21
22 /* Reviewed: Wed Mar 15 16:52:38 PST 2000 by explorer */
23
24 /* RFC2672 */
25
26 #ifndef RDATA_GENERIC_DNAME_39_C
27 #define RDATA_GENERIC_DNAME_39_C
28
29 #define RRTYPE_DNAME_ATTRIBUTES (DNS_RDATATYPEATTR_SINGLETON)
30
31 static inline isc_result_t
fromtext_dname(ARGS_FROMTEXT)32 fromtext_dname(ARGS_FROMTEXT) {
33 isc_token_t token;
34 dns_name_t name;
35 isc_buffer_t buffer;
36
37 REQUIRE(type == 39);
38
39 UNUSED(type);
40 UNUSED(rdclass);
41 UNUSED(callbacks);
42
43 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
44 ISC_FALSE));
45
46 dns_name_init(&name, NULL);
47 buffer_fromregion(&buffer, &token.value.as_region);
48 origin = (origin != NULL) ? origin : dns_rootname;
49 RETTOK(dns_name_fromtext(&name, &buffer, origin, options, target));
50 return (ISC_R_SUCCESS);
51 }
52
53 static inline isc_result_t
totext_dname(ARGS_TOTEXT)54 totext_dname(ARGS_TOTEXT) {
55 isc_region_t region;
56 dns_name_t name;
57 dns_name_t prefix;
58 isc_boolean_t sub;
59
60 REQUIRE(rdata->type == 39);
61 REQUIRE(rdata->length != 0);
62
63 dns_name_init(&name, NULL);
64 dns_name_init(&prefix, NULL);
65
66 dns_rdata_toregion(rdata, ®ion);
67 dns_name_fromregion(&name, ®ion);
68
69 sub = name_prefix(&name, tctx->origin, &prefix);
70
71 return (dns_name_totext(&prefix, sub, target));
72 }
73
74 static inline isc_result_t
fromwire_dname(ARGS_FROMWIRE)75 fromwire_dname(ARGS_FROMWIRE) {
76 dns_name_t name;
77
78 REQUIRE(type == 39);
79
80 UNUSED(type);
81 UNUSED(rdclass);
82
83 dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE);
84
85 dns_name_init(&name, NULL);
86 return(dns_name_fromwire(&name, source, dctx, options, target));
87 }
88
89 static inline isc_result_t
towire_dname(ARGS_TOWIRE)90 towire_dname(ARGS_TOWIRE) {
91 dns_name_t name;
92 dns_offsets_t offsets;
93 isc_region_t region;
94
95 REQUIRE(rdata->type == 39);
96 REQUIRE(rdata->length != 0);
97
98 dns_compress_setmethods(cctx, DNS_COMPRESS_NONE);
99 dns_name_init(&name, offsets);
100 dns_rdata_toregion(rdata, ®ion);
101 dns_name_fromregion(&name, ®ion);
102
103 return (dns_name_towire(&name, cctx, target));
104 }
105
106 static inline int
compare_dname(ARGS_COMPARE)107 compare_dname(ARGS_COMPARE) {
108 dns_name_t name1;
109 dns_name_t name2;
110 isc_region_t region1;
111 isc_region_t region2;
112
113 REQUIRE(rdata1->type == rdata2->type);
114 REQUIRE(rdata1->rdclass == rdata2->rdclass);
115 REQUIRE(rdata1->type == 39);
116 REQUIRE(rdata1->length != 0);
117 REQUIRE(rdata2->length != 0);
118
119 dns_name_init(&name1, NULL);
120 dns_name_init(&name2, NULL);
121
122 dns_rdata_toregion(rdata1, ®ion1);
123 dns_rdata_toregion(rdata2, ®ion2);
124
125 dns_name_fromregion(&name1, ®ion1);
126 dns_name_fromregion(&name2, ®ion2);
127
128 return (dns_name_rdatacompare(&name1, &name2));
129 }
130
131 static inline isc_result_t
fromstruct_dname(ARGS_FROMSTRUCT)132 fromstruct_dname(ARGS_FROMSTRUCT) {
133 dns_rdata_dname_t *dname = source;
134 isc_region_t region;
135
136 REQUIRE(type == 39);
137 REQUIRE(source != NULL);
138 REQUIRE(dname->common.rdtype == type);
139 REQUIRE(dname->common.rdclass == rdclass);
140
141 UNUSED(type);
142 UNUSED(rdclass);
143
144 dns_name_toregion(&dname->dname, ®ion);
145 return (isc_buffer_copyregion(target, ®ion));
146 }
147
148 static inline isc_result_t
tostruct_dname(ARGS_TOSTRUCT)149 tostruct_dname(ARGS_TOSTRUCT) {
150 isc_region_t region;
151 dns_rdata_dname_t *dname = target;
152 dns_name_t name;
153
154 REQUIRE(rdata->type == 39);
155 REQUIRE(target != NULL);
156 REQUIRE(rdata->length != 0);
157
158 dname->common.rdclass = rdata->rdclass;
159 dname->common.rdtype = rdata->type;
160 ISC_LINK_INIT(&dname->common, link);
161
162 dns_name_init(&name, NULL);
163 dns_rdata_toregion(rdata, ®ion);
164 dns_name_fromregion(&name, ®ion);
165 dns_name_init(&dname->dname, NULL);
166 RETERR(name_duporclone(&name, mctx, &dname->dname));
167 dname->mctx = mctx;
168 return (ISC_R_SUCCESS);
169 }
170
171 static inline void
freestruct_dname(ARGS_FREESTRUCT)172 freestruct_dname(ARGS_FREESTRUCT) {
173 dns_rdata_dname_t *dname = source;
174
175 REQUIRE(source != NULL);
176 REQUIRE(dname->common.rdtype == 39);
177
178 if (dname->mctx == NULL)
179 return;
180
181 dns_name_free(&dname->dname, dname->mctx);
182 dname->mctx = NULL;
183 }
184
185 static inline isc_result_t
additionaldata_dname(ARGS_ADDLDATA)186 additionaldata_dname(ARGS_ADDLDATA) {
187 UNUSED(rdata);
188 UNUSED(add);
189 UNUSED(arg);
190
191 REQUIRE(rdata->type == 39);
192
193 return (ISC_R_SUCCESS);
194 }
195
196 static inline isc_result_t
digest_dname(ARGS_DIGEST)197 digest_dname(ARGS_DIGEST) {
198 isc_region_t r;
199 dns_name_t name;
200
201 REQUIRE(rdata->type == 39);
202
203 dns_rdata_toregion(rdata, &r);
204 dns_name_init(&name, NULL);
205 dns_name_fromregion(&name, &r);
206
207 return (dns_name_digest(&name, digest, arg));
208 }
209
210 static inline isc_boolean_t
checkowner_dname(ARGS_CHECKOWNER)211 checkowner_dname(ARGS_CHECKOWNER) {
212
213 REQUIRE(type == 39);
214
215 UNUSED(name);
216 UNUSED(type);
217 UNUSED(rdclass);
218 UNUSED(wildcard);
219
220 return (ISC_TRUE);
221 }
222
223 static inline isc_boolean_t
checknames_dname(ARGS_CHECKNAMES)224 checknames_dname(ARGS_CHECKNAMES) {
225
226 REQUIRE(rdata->type == 39);
227
228 UNUSED(rdata);
229 UNUSED(owner);
230 UNUSED(bad);
231
232 return (ISC_TRUE);
233 }
234
235 static inline int
casecompare_dname(ARGS_COMPARE)236 casecompare_dname(ARGS_COMPARE) {
237 return (compare_dname(rdata1, rdata2));
238 }
239 #endif /* RDATA_GENERIC_DNAME_39_C */
240