/contrib/bind9/lib/dns/rdata/generic/mg_8.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: mg_8.c,v 1.45 2009/12/04 22:06:37 tbox Exp $ */
 19
 20/* reviewed: Wed Mar 15 17:49:21 PST 2000 by brister */
 21
 22#ifndef RDATA_GENERIC_MG_8_C
 23#define RDATA_GENERIC_MG_8_C
 24
 25#define RRTYPE_MG_ATTRIBUTES (0)
 26
 27static inline isc_result_t
 28fromtext_mg(ARGS_FROMTEXT) {
 29	isc_token_t token;
 30	dns_name_t name;
 31	isc_buffer_t buffer;
 32
 33	REQUIRE(type == 8);
 34
 35	UNUSED(type);
 36	UNUSED(rdclass);
 37	UNUSED(callbacks);
 38
 39	RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
 40				      ISC_FALSE));
 41
 42	dns_name_init(&name, NULL);
 43	buffer_fromregion(&buffer, &token.value.as_region);
 44	origin = (origin != NULL) ? origin : dns_rootname;
 45	RETTOK(dns_name_fromtext(&name, &buffer, origin, options, target));
 46	return (ISC_R_SUCCESS);
 47}
 48
 49static inline isc_result_t
 50totext_mg(ARGS_TOTEXT) {
 51	isc_region_t region;
 52	dns_name_t name;
 53	dns_name_t prefix;
 54	isc_boolean_t sub;
 55
 56	REQUIRE(rdata->type == 8);
 57	REQUIRE(rdata->length != 0);
 58
 59	dns_name_init(&name, NULL);
 60	dns_name_init(&prefix, NULL);
 61
 62	dns_rdata_toregion(rdata, &region);
 63	dns_name_fromregion(&name, &region);
 64
 65	sub = name_prefix(&name, tctx->origin, &prefix);
 66
 67	return (dns_name_totext(&prefix, sub, target));
 68}
 69
 70static inline isc_result_t
 71fromwire_mg(ARGS_FROMWIRE) {
 72	dns_name_t name;
 73
 74	REQUIRE(type == 8);
 75
 76	UNUSED(type);
 77	UNUSED(rdclass);
 78
 79	dns_decompress_setmethods(dctx, DNS_COMPRESS_GLOBAL14);
 80
 81	dns_name_init(&name, NULL);
 82	return (dns_name_fromwire(&name, source, dctx, options, target));
 83}
 84
 85static inline isc_result_t
 86towire_mg(ARGS_TOWIRE) {
 87	dns_name_t name;
 88	dns_offsets_t offsets;
 89	isc_region_t region;
 90
 91	REQUIRE(rdata->type == 8);
 92	REQUIRE(rdata->length != 0);
 93
 94	dns_compress_setmethods(cctx, DNS_COMPRESS_GLOBAL14);
 95
 96	dns_name_init(&name, offsets);
 97	dns_rdata_toregion(rdata, &region);
 98	dns_name_fromregion(&name, &region);
 99
100	return (dns_name_towire(&name, cctx, target));
101}
102
103static inline int
104compare_mg(ARGS_COMPARE) {
105	dns_name_t name1;
106	dns_name_t name2;
107	isc_region_t region1;
108	isc_region_t region2;
109
110	REQUIRE(rdata1->type == rdata2->type);
111	REQUIRE(rdata1->rdclass == rdata2->rdclass);
112	REQUIRE(rdata1->type == 8);
113	REQUIRE(rdata1->length != 0);
114	REQUIRE(rdata2->length != 0);
115
116	dns_name_init(&name1, NULL);
117	dns_name_init(&name2, NULL);
118
119	dns_rdata_toregion(rdata1, &region1);
120	dns_rdata_toregion(rdata2, &region2);
121
122	dns_name_fromregion(&name1, &region1);
123	dns_name_fromregion(&name2, &region2);
124
125	return (dns_name_rdatacompare(&name1, &name2));
126}
127
128static inline isc_result_t
129fromstruct_mg(ARGS_FROMSTRUCT) {
130	dns_rdata_mg_t *mg = source;
131	isc_region_t region;
132
133	REQUIRE(type == 8);
134	REQUIRE(source != NULL);
135	REQUIRE(mg->common.rdtype == type);
136	REQUIRE(mg->common.rdclass == rdclass);
137
138	UNUSED(type);
139	UNUSED(rdclass);
140
141	dns_name_toregion(&mg->mg, &region);
142	return (isc_buffer_copyregion(target, &region));
143}
144
145static inline isc_result_t
146tostruct_mg(ARGS_TOSTRUCT) {
147	isc_region_t region;
148	dns_rdata_mg_t *mg = target;
149	dns_name_t name;
150
151	REQUIRE(rdata->type == 8);
152	REQUIRE(target != NULL);
153	REQUIRE(rdata->length != 0);
154
155	mg->common.rdclass = rdata->rdclass;
156	mg->common.rdtype = rdata->type;
157	ISC_LINK_INIT(&mg->common, link);
158
159	dns_name_init(&name, NULL);
160	dns_rdata_toregion(rdata, &region);
161	dns_name_fromregion(&name, &region);
162	dns_name_init(&mg->mg, NULL);
163	RETERR(name_duporclone(&name, mctx, &mg->mg));
164	mg->mctx = mctx;
165	return (ISC_R_SUCCESS);
166}
167
168static inline void
169freestruct_mg(ARGS_FREESTRUCT) {
170	dns_rdata_mg_t *mg = source;
171
172	REQUIRE(source != NULL);
173	REQUIRE(mg->common.rdtype == 8);
174
175	if (mg->mctx == NULL)
176		return;
177	dns_name_free(&mg->mg, mg->mctx);
178	mg->mctx = NULL;
179}
180
181static inline isc_result_t
182additionaldata_mg(ARGS_ADDLDATA) {
183	REQUIRE(rdata->type == 8);
184
185	UNUSED(add);
186	UNUSED(arg);
187	UNUSED(rdata);
188
189	return (ISC_R_SUCCESS);
190}
191
192static inline isc_result_t
193digest_mg(ARGS_DIGEST) {
194	isc_region_t r;
195	dns_name_t name;
196
197	REQUIRE(rdata->type == 8);
198
199	dns_rdata_toregion(rdata, &r);
200	dns_name_init(&name, NULL);
201	dns_name_fromregion(&name, &r);
202
203	return (dns_name_digest(&name, digest, arg));
204}
205
206static inline isc_boolean_t
207checkowner_mg(ARGS_CHECKOWNER) {
208
209	REQUIRE(type == 8);
210
211	UNUSED(type);
212	UNUSED(rdclass);
213	UNUSED(wildcard);
214
215	return (dns_name_ismailbox(name));
216}
217
218static inline isc_boolean_t
219checknames_mg(ARGS_CHECKNAMES) {
220
221	REQUIRE(rdata->type == 8);
222
223	UNUSED(rdata);
224	UNUSED(owner);
225	UNUSED(bad);
226
227	return (ISC_TRUE);
228}
229
230static inline int
231casecompare_mg(ARGS_COMPARE) {
232	return (compare_mg(rdata1, rdata2));
233}
234
235#endif	/* RDATA_GENERIC_MG_8_C */