/contrib/bind9/lib/dns/rdata/generic/minfo_14.c

  1/*
  2 * Copyright (C) 2004, 2007, 2009  Internet Systems Consortium, Inc. ("ISC")
  3 * Copyright (C) 1998-2001  Internet Software Consortium.
  4 *
  5 * Permission to use, copy, modify, and/or distribute this software for any
  6 * purpose with or without fee is hereby granted, provided that the above
  7 * copyright notice and this permission notice appear in all copies.
  8 *
  9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
 10 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 11 * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
 12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
 13 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
 14 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 15 * PERFORMANCE OF THIS SOFTWARE.
 16 */
 17
 18/* $Id: minfo_14.c,v 1.47 2009/12/04 22:06:37 tbox Exp $ */
 19
 20/* reviewed: Wed Mar 15 17:45:32 PST 2000 by brister */
 21
 22#ifndef RDATA_GENERIC_MINFO_14_C
 23#define RDATA_GENERIC_MINFO_14_C
 24
 25#define RRTYPE_MINFO_ATTRIBUTES (0)
 26
 27static inline isc_result_t
 28fromtext_minfo(ARGS_FROMTEXT) {
 29	isc_token_t token;
 30	dns_name_t name;
 31	isc_buffer_t buffer;
 32	int i;
 33	isc_boolean_t ok;
 34
 35	REQUIRE(type == 14);
 36
 37	UNUSED(type);
 38	UNUSED(rdclass);
 39	UNUSED(callbacks);
 40
 41	for (i = 0; i < 2; i++) {
 42		RETERR(isc_lex_getmastertoken(lexer, &token,
 43					      isc_tokentype_string,
 44					      ISC_FALSE));
 45		dns_name_init(&name, NULL);
 46		buffer_fromregion(&buffer, &token.value.as_region);
 47		origin = (origin != NULL) ? origin : dns_rootname;
 48		RETTOK(dns_name_fromtext(&name, &buffer, origin,
 49					 options, target));
 50		ok = ISC_TRUE;
 51		if ((options & DNS_RDATA_CHECKNAMES) != 0)
 52			ok = dns_name_ismailbox(&name);
 53		if (!ok && (options & DNS_RDATA_CHECKNAMESFAIL) != 0)
 54			RETTOK(DNS_R_BADNAME);
 55		if (!ok && callbacks != NULL)
 56			warn_badname(&name, lexer, callbacks);
 57	}
 58	return (ISC_R_SUCCESS);
 59}
 60
 61static inline isc_result_t
 62totext_minfo(ARGS_TOTEXT) {
 63	isc_region_t region;
 64	dns_name_t rmail;
 65	dns_name_t email;
 66	dns_name_t prefix;
 67	isc_boolean_t sub;
 68
 69	REQUIRE(rdata->type == 14);
 70	REQUIRE(rdata->length != 0);
 71
 72	dns_name_init(&rmail, NULL);
 73	dns_name_init(&email, NULL);
 74	dns_name_init(&prefix, NULL);
 75
 76	dns_rdata_toregion(rdata, &region);
 77
 78	dns_name_fromregion(&rmail, &region);
 79	isc_region_consume(&region, rmail.length);
 80
 81	dns_name_fromregion(&email, &region);
 82	isc_region_consume(&region, email.length);
 83
 84	sub = name_prefix(&rmail, tctx->origin, &prefix);
 85
 86	RETERR(dns_name_totext(&prefix, sub, target));
 87
 88	RETERR(str_totext(" ", target));
 89
 90	sub = name_prefix(&email, tctx->origin, &prefix);
 91	return (dns_name_totext(&prefix, sub, target));
 92}
 93
 94static inline isc_result_t
 95fromwire_minfo(ARGS_FROMWIRE) {
 96	dns_name_t rmail;
 97	dns_name_t email;
 98
 99	REQUIRE(type == 14);
100
101	UNUSED(type);
102	UNUSED(rdclass);
103
104	dns_decompress_setmethods(dctx, DNS_COMPRESS_GLOBAL14);
105
106	dns_name_init(&rmail, NULL);
107	dns_name_init(&email, NULL);
108
109	RETERR(dns_name_fromwire(&rmail, source, dctx, options, target));
110	return (dns_name_fromwire(&email, source, dctx, options, target));
111}
112
113static inline isc_result_t
114towire_minfo(ARGS_TOWIRE) {
115	isc_region_t region;
116	dns_name_t rmail;
117	dns_name_t email;
118	dns_offsets_t roffsets;
119	dns_offsets_t eoffsets;
120
121	REQUIRE(rdata->type == 14);
122	REQUIRE(rdata->length != 0);
123
124	dns_compress_setmethods(cctx, DNS_COMPRESS_GLOBAL14);
125
126	dns_name_init(&rmail, roffsets);
127	dns_name_init(&email, eoffsets);
128
129	dns_rdata_toregion(rdata, &region);
130
131	dns_name_fromregion(&rmail, &region);
132	isc_region_consume(&region, name_length(&rmail));
133
134	RETERR(dns_name_towire(&rmail, cctx, target));
135
136	dns_name_fromregion(&rmail, &region);
137	isc_region_consume(&region, rmail.length);
138
139	return (dns_name_towire(&rmail, cctx, target));
140}
141
142static inline int
143compare_minfo(ARGS_COMPARE) {
144	isc_region_t region1;
145	isc_region_t region2;
146	dns_name_t name1;
147	dns_name_t name2;
148	int order;
149
150	REQUIRE(rdata1->type == rdata2->type);
151	REQUIRE(rdata1->rdclass == rdata2->rdclass);
152	REQUIRE(rdata1->type == 14);
153	REQUIRE(rdata1->length != 0);
154	REQUIRE(rdata2->length != 0);
155
156	dns_name_init(&name1, NULL);
157	dns_name_init(&name2, NULL);
158
159	dns_rdata_toregion(rdata1, &region1);
160	dns_rdata_toregion(rdata2, &region2);
161
162	dns_name_fromregion(&name1, &region1);
163	dns_name_fromregion(&name2, &region2);
164
165	order = dns_name_rdatacompare(&name1, &name2);
166	if (order != 0)
167		return (order);
168
169	isc_region_consume(&region1, name_length(&name1));
170	isc_region_consume(&region2, name_length(&name2));
171
172	dns_name_init(&name1, NULL);
173	dns_name_init(&name2, NULL);
174
175	dns_name_fromregion(&name1, &region1);
176	dns_name_fromregion(&name2, &region2);
177
178	order = dns_name_rdatacompare(&name1, &name2);
179	return (order);
180}
181
182static inline isc_result_t
183fromstruct_minfo(ARGS_FROMSTRUCT) {
184	dns_rdata_minfo_t *minfo = source;
185	isc_region_t region;
186
187	REQUIRE(type == 14);
188	REQUIRE(source != NULL);
189	REQUIRE(minfo->common.rdtype == type);
190	REQUIRE(minfo->common.rdclass == rdclass);
191
192	UNUSED(type);
193	UNUSED(rdclass);
194
195	dns_name_toregion(&minfo->rmailbox, &region);
196	RETERR(isc_buffer_copyregion(target, &region));
197	dns_name_toregion(&minfo->emailbox, &region);
198	return (isc_buffer_copyregion(target, &region));
199}
200
201static inline isc_result_t
202tostruct_minfo(ARGS_TOSTRUCT) {
203	dns_rdata_minfo_t *minfo = target;
204	isc_region_t region;
205	dns_name_t name;
206	isc_result_t result;
207
208	REQUIRE(rdata->type == 14);
209	REQUIRE(target != NULL);
210	REQUIRE(rdata->length != 0);
211
212	minfo->common.rdclass = rdata->rdclass;
213	minfo->common.rdtype = rdata->type;
214	ISC_LINK_INIT(&minfo->common, link);
215
216	dns_name_init(&name, NULL);
217	dns_rdata_toregion(rdata, &region);
218	dns_name_fromregion(&name, &region);
219	dns_name_init(&minfo->rmailbox, NULL);
220	RETERR(name_duporclone(&name, mctx, &minfo->rmailbox));
221	isc_region_consume(&region, name_length(&name));
222
223	dns_name_fromregion(&name, &region);
224	dns_name_init(&minfo->emailbox, NULL);
225	result = name_duporclone(&name, mctx, &minfo->emailbox);
226	if (result != ISC_R_SUCCESS)
227		goto cleanup;
228	minfo->mctx = mctx;
229	return (ISC_R_SUCCESS);
230
231 cleanup:
232	if (mctx != NULL)
233		dns_name_free(&minfo->rmailbox, mctx);
234	return (ISC_R_NOMEMORY);
235}
236
237static inline void
238freestruct_minfo(ARGS_FREESTRUCT) {
239	dns_rdata_minfo_t *minfo = source;
240
241	REQUIRE(source != NULL);
242	REQUIRE(minfo->common.rdtype == 14);
243
244	if (minfo->mctx == NULL)
245		return;
246
247	dns_name_free(&minfo->rmailbox, minfo->mctx);
248	dns_name_free(&minfo->emailbox, minfo->mctx);
249	minfo->mctx = NULL;
250}
251
252static inline isc_result_t
253additionaldata_minfo(ARGS_ADDLDATA) {
254	REQUIRE(rdata->type == 14);
255
256	UNUSED(rdata);
257	UNUSED(add);
258	UNUSED(arg);
259
260	return (ISC_R_SUCCESS);
261}
262
263static inline isc_result_t
264digest_minfo(ARGS_DIGEST) {
265	isc_region_t r;
266	dns_name_t name;
267	isc_result_t result;
268
269	REQUIRE(rdata->type == 14);
270
271	dns_rdata_toregion(rdata, &r);
272	dns_name_init(&name, NULL);
273	dns_name_fromregion(&name, &r);
274	result = dns_name_digest(&name, digest, arg);
275	if (result != ISC_R_SUCCESS)
276		return (result);
277	isc_region_consume(&r, name_length(&name));
278	dns_name_init(&name, NULL);
279	dns_name_fromregion(&name, &r);
280
281	return (dns_name_digest(&name, digest, arg));
282}
283
284static inline isc_boolean_t
285checkowner_minfo(ARGS_CHECKOWNER) {
286
287	REQUIRE(type == 14);
288
289	UNUSED(name);
290	UNUSED(type);
291	UNUSED(rdclass);
292	UNUSED(wildcard);
293
294	return (ISC_TRUE);
295}
296
297static inline isc_boolean_t
298checknames_minfo(ARGS_CHECKNAMES) {
299	isc_region_t region;
300	dns_name_t name;
301
302	REQUIRE(rdata->type == 14);
303
304	UNUSED(owner);
305
306	dns_rdata_toregion(rdata, &region);
307	dns_name_init(&name, NULL);
308	dns_name_fromregion(&name, &region);
309	if (!dns_name_ismailbox(&name)) {
310		if (bad != NULL)
311			dns_name_clone(&name, bad);
312		return (ISC_FALSE);
313	}
314	isc_region_consume(&region, name_length(&name));
315	dns_name_fromregion(&name, &region);
316	if (!dns_name_ismailbox(&name)) {
317		if (bad != NULL)
318			dns_name_clone(&name, bad);
319		return (ISC_FALSE);
320	}
321	return (ISC_TRUE);
322}
323
324static inline int
325casecompare_minfo(ARGS_COMPARE) {
326	return (compare_minfo(rdata1, rdata2));
327}
328
329#endif	/* RDATA_GENERIC_MINFO_14_C */