1 /* $NetBSD: uri_256.c,v 1.1.1.5 2014/12/10 03:34:42 christos Exp $ */
2
3 /*
4 * Copyright (C) 2011, 2012, 2014 Internet Systems Consortium, Inc. ("ISC")
5 *
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
11 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
12 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
13 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
14 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
15 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
16 * PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 /* Id */
20
21 #ifndef GENERIC_URI_256_C
22 #define GENERIC_URI_256_C 1
23
24 #define RRTYPE_URI_ATTRIBUTES (0)
25
26 static inline isc_result_t
fromtext_uri(ARGS_FROMTEXT)27 fromtext_uri(ARGS_FROMTEXT) {
28 isc_token_t token;
29
30 REQUIRE(type == 256);
31
32 UNUSED(type);
33 UNUSED(rdclass);
34 UNUSED(origin);
35 UNUSED(options);
36 UNUSED(callbacks);
37
38 /*
39 * Priority
40 */
41 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
42 ISC_FALSE));
43 if (token.value.as_ulong > 0xffffU)
44 RETTOK(ISC_R_RANGE);
45 RETERR(uint16_tobuffer(token.value.as_ulong, target));
46
47 /*
48 * Weight
49 */
50 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
51 ISC_FALSE));
52 if (token.value.as_ulong > 0xffffU)
53 RETTOK(ISC_R_RANGE);
54 RETERR(uint16_tobuffer(token.value.as_ulong, target));
55
56 /*
57 * Target URI
58 */
59 RETERR(isc_lex_getmastertoken(lexer, &token,
60 isc_tokentype_qstring, ISC_FALSE));
61 if (token.type != isc_tokentype_qstring)
62 RETTOK(DNS_R_SYNTAX);
63 RETTOK(multitxt_fromtext(&token.value.as_textregion, target));
64 return (ISC_R_SUCCESS);
65 }
66
67 static inline isc_result_t
totext_uri(ARGS_TOTEXT)68 totext_uri(ARGS_TOTEXT) {
69 isc_region_t region;
70 unsigned short priority, weight;
71 char buf[sizeof("65000 ")];
72
73 UNUSED(tctx);
74
75 REQUIRE(rdata->type == 256);
76 REQUIRE(rdata->length != 0);
77
78 dns_rdata_toregion(rdata, ®ion);
79
80 /*
81 * Priority
82 */
83 priority = uint16_fromregion(®ion);
84 isc_region_consume(®ion, 2);
85 sprintf(buf, "%u ", priority);
86 RETERR(str_totext(buf, target));
87
88 /*
89 * Weight
90 */
91 weight = uint16_fromregion(®ion);
92 isc_region_consume(®ion, 2);
93 sprintf(buf, "%u ", weight);
94 RETERR(str_totext(buf, target));
95
96 /*
97 * Target URI
98 */
99 RETERR(multitxt_totext(®ion, target));
100 return (ISC_R_SUCCESS);
101 }
102
103 static inline isc_result_t
fromwire_uri(ARGS_FROMWIRE)104 fromwire_uri(ARGS_FROMWIRE) {
105 isc_region_t region;
106
107 REQUIRE(type == 256);
108
109 UNUSED(type);
110 UNUSED(rdclass);
111 UNUSED(dctx);
112 UNUSED(options);
113
114 /*
115 * Priority, weight
116 */
117 isc_buffer_activeregion(source, ®ion);
118 if (region.length < 4)
119 return (ISC_R_UNEXPECTEDEND);
120
121 /*
122 * Priority, weight and target URI
123 */
124 isc_buffer_forward(source, region.length);
125 return (mem_tobuffer(target, region.base, region.length));
126 }
127
128 static inline isc_result_t
towire_uri(ARGS_TOWIRE)129 towire_uri(ARGS_TOWIRE) {
130 isc_region_t region;
131
132 REQUIRE(rdata->type == 256);
133 REQUIRE(rdata->length != 0);
134
135 UNUSED(cctx);
136
137 dns_rdata_toregion(rdata, ®ion);
138 return (mem_tobuffer(target, region.base, region.length));
139 }
140
141 static inline int
compare_uri(ARGS_COMPARE)142 compare_uri(ARGS_COMPARE) {
143 isc_region_t r1;
144 isc_region_t r2;
145 int order;
146
147 REQUIRE(rdata1->type == rdata2->type);
148 REQUIRE(rdata1->rdclass == rdata2->rdclass);
149 REQUIRE(rdata1->type == 256);
150 REQUIRE(rdata1->length != 0);
151 REQUIRE(rdata2->length != 0);
152
153 dns_rdata_toregion(rdata1, &r1);
154 dns_rdata_toregion(rdata2, &r2);
155
156 /*
157 * Priority
158 */
159 order = memcmp(r1.base, r2.base, 2);
160 if (order != 0)
161 return (order < 0 ? -1 : 1);
162 isc_region_consume(&r1, 2);
163 isc_region_consume(&r2, 2);
164
165 /*
166 * Weight
167 */
168 order = memcmp(r1.base, r2.base, 2);
169 if (order != 0)
170 return (order < 0 ? -1 : 1);
171 isc_region_consume(&r1, 2);
172 isc_region_consume(&r2, 2);
173
174 return (isc_region_compare(&r1, &r2));
175 }
176
177 static inline isc_result_t
fromstruct_uri(ARGS_FROMSTRUCT)178 fromstruct_uri(ARGS_FROMSTRUCT) {
179 dns_rdata_uri_t *uri = source;
180
181 REQUIRE(type == 256);
182 REQUIRE(source != NULL);
183 REQUIRE(uri->common.rdtype == type);
184 REQUIRE(uri->common.rdclass == rdclass);
185 REQUIRE(uri->target != NULL && uri->tgt_len != 0);
186
187 UNUSED(type);
188 UNUSED(rdclass);
189
190 /*
191 * Priority
192 */
193 RETERR(uint16_tobuffer(uri->priority, target));
194
195 /*
196 * Weight
197 */
198 RETERR(uint16_tobuffer(uri->weight, target));
199
200 /*
201 * Target URI
202 */
203 return (mem_tobuffer(target, uri->target, uri->tgt_len));
204 }
205
206 static inline isc_result_t
tostruct_uri(ARGS_TOSTRUCT)207 tostruct_uri(ARGS_TOSTRUCT) {
208 dns_rdata_uri_t *uri = target;
209 isc_region_t sr;
210
211 REQUIRE(rdata->type == 256);
212 REQUIRE(target != NULL);
213 REQUIRE(rdata->length != 0);
214
215 uri->common.rdclass = rdata->rdclass;
216 uri->common.rdtype = rdata->type;
217 ISC_LINK_INIT(&uri->common, link);
218
219 dns_rdata_toregion(rdata, &sr);
220
221 /*
222 * Priority
223 */
224 if (sr.length < 2)
225 return (ISC_R_UNEXPECTEDEND);
226 uri->priority = uint16_fromregion(&sr);
227 isc_region_consume(&sr, 2);
228
229 /*
230 * Weight
231 */
232 if (sr.length < 2)
233 return (ISC_R_UNEXPECTEDEND);
234 uri->weight = uint16_fromregion(&sr);
235 isc_region_consume(&sr, 2);
236
237 /*
238 * Target URI
239 */
240 uri->tgt_len = sr.length;
241 uri->target = mem_maybedup(mctx, sr.base, sr.length);
242 if (uri->target == NULL)
243 return (ISC_R_NOMEMORY);
244
245 uri->mctx = mctx;
246 return (ISC_R_SUCCESS);
247 }
248
249 static inline void
freestruct_uri(ARGS_FREESTRUCT)250 freestruct_uri(ARGS_FREESTRUCT) {
251 dns_rdata_uri_t *uri = (dns_rdata_uri_t *) source;
252
253 REQUIRE(source != NULL);
254 REQUIRE(uri->common.rdtype == 256);
255
256 if (uri->mctx == NULL)
257 return;
258
259 if (uri->target != NULL)
260 isc_mem_free(uri->mctx, uri->target);
261 uri->mctx = NULL;
262 }
263
264 static inline isc_result_t
additionaldata_uri(ARGS_ADDLDATA)265 additionaldata_uri(ARGS_ADDLDATA) {
266 REQUIRE(rdata->type == 256);
267
268 UNUSED(rdata);
269 UNUSED(add);
270 UNUSED(arg);
271
272 return (ISC_R_SUCCESS);
273 }
274
275 static inline isc_result_t
digest_uri(ARGS_DIGEST)276 digest_uri(ARGS_DIGEST) {
277 isc_region_t r;
278
279 REQUIRE(rdata->type == 256);
280
281 dns_rdata_toregion(rdata, &r);
282
283 return ((digest)(arg, &r));
284 }
285
286 static inline isc_boolean_t
checkowner_uri(ARGS_CHECKOWNER)287 checkowner_uri(ARGS_CHECKOWNER) {
288
289 REQUIRE(type == 256);
290
291 UNUSED(name);
292 UNUSED(type);
293 UNUSED(rdclass);
294 UNUSED(wildcard);
295
296 return (ISC_TRUE);
297 }
298
299 static inline isc_boolean_t
checknames_uri(ARGS_CHECKNAMES)300 checknames_uri(ARGS_CHECKNAMES) {
301
302 REQUIRE(rdata->type == 256);
303
304 UNUSED(rdata);
305 UNUSED(owner);
306 UNUSED(bad);
307
308 return (ISC_TRUE);
309 }
310
311 static inline int
casecompare_uri(ARGS_COMPARE)312 casecompare_uri(ARGS_COMPARE) {
313 return (compare_uri(rdata1, rdata2));
314 }
315
316 #endif /* GENERIC_URI_256_C */
317