2 * Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (C) 1998-2001, 2003 Internet Software Consortium.
5 * Permission to use, copy, modify, and 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.
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.
18 /* $Id: mx_15.c,v 1.48.2.1.2.3 2004/03/06 08:14:08 marka Exp $ */
20 /* reviewed: Wed Mar 15 18:05:46 PST 2000 by brister */
22 #ifndef RDATA_GENERIC_MX_15_C
23 #define RDATA_GENERIC_MX_15_C
25 #define RRTYPE_MX_ATTRIBUTES (0)
27 static inline isc_result_t
28 fromtext_mx(ARGS_FROMTEXT) {
40 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
42 if (token.value.as_ulong > 0xffffU)
44 RETERR(uint16_tobuffer(token.value.as_ulong, target));
46 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
48 dns_name_init(&name, NULL);
49 buffer_fromregion(&buffer, &token.value.as_region);
50 origin = (origin != NULL) ? origin : dns_rootname;
51 RETTOK(dns_name_fromtext(&name, &buffer, origin, options, target));
53 if ((options & DNS_RDATA_CHECKNAMES) != 0)
54 ok = dns_name_ishostname(&name, ISC_FALSE);
55 if (!ok && (options & DNS_RDATA_CHECKNAMESFAIL) != 0)
56 RETTOK(DNS_R_BADNAME);
57 if (!ok && callbacks != NULL)
58 warn_badname(&name, lexer, callbacks);
59 return (ISC_R_SUCCESS);
62 static inline isc_result_t
63 totext_mx(ARGS_TOTEXT) {
68 char buf[sizeof("64000")];
71 REQUIRE(rdata->type == 15);
72 REQUIRE(rdata->length != 0);
74 dns_name_init(&name, NULL);
75 dns_name_init(&prefix, NULL);
77 dns_rdata_toregion(rdata, ®ion);
78 num = uint16_fromregion(®ion);
79 isc_region_consume(®ion, 2);
80 sprintf(buf, "%u", num);
81 RETERR(str_totext(buf, target));
83 RETERR(str_totext(" ", target));
85 dns_name_fromregion(&name, ®ion);
86 sub = name_prefix(&name, tctx->origin, &prefix);
87 return (dns_name_totext(&prefix, sub, target));
90 static inline isc_result_t
91 fromwire_mx(ARGS_FROMWIRE) {
100 dns_decompress_setmethods(dctx, DNS_COMPRESS_GLOBAL14);
102 dns_name_init(&name, NULL);
104 isc_buffer_activeregion(source, &sregion);
105 if (sregion.length < 2)
106 return (ISC_R_UNEXPECTEDEND);
107 RETERR(mem_tobuffer(target, sregion.base, 2));
108 isc_buffer_forward(source, 2);
109 return (dns_name_fromwire(&name, source, dctx, options, target));
112 static inline isc_result_t
113 towire_mx(ARGS_TOWIRE) {
115 dns_offsets_t offsets;
118 REQUIRE(rdata->type == 15);
119 REQUIRE(rdata->length != 0);
121 dns_compress_setmethods(cctx, DNS_COMPRESS_GLOBAL14);
123 dns_rdata_toregion(rdata, ®ion);
124 RETERR(mem_tobuffer(target, region.base, 2));
125 isc_region_consume(®ion, 2);
127 dns_name_init(&name, offsets);
128 dns_name_fromregion(&name, ®ion);
130 return (dns_name_towire(&name, cctx, target));
134 compare_mx(ARGS_COMPARE) {
137 isc_region_t region1;
138 isc_region_t region2;
141 REQUIRE(rdata1->type == rdata2->type);
142 REQUIRE(rdata1->rdclass == rdata2->rdclass);
143 REQUIRE(rdata1->type == 15);
144 REQUIRE(rdata1->length != 0);
145 REQUIRE(rdata2->length != 0);
147 order = memcmp(rdata1->data, rdata2->data, 2);
149 return (order < 0 ? -1 : 1);
151 dns_name_init(&name1, NULL);
152 dns_name_init(&name2, NULL);
154 dns_rdata_toregion(rdata1, ®ion1);
155 dns_rdata_toregion(rdata2, ®ion2);
157 isc_region_consume(®ion1, 2);
158 isc_region_consume(®ion2, 2);
160 dns_name_fromregion(&name1, ®ion1);
161 dns_name_fromregion(&name2, ®ion2);
163 return (dns_name_rdatacompare(&name1, &name2));
166 static inline isc_result_t
167 fromstruct_mx(ARGS_FROMSTRUCT) {
168 dns_rdata_mx_t *mx = source;
172 REQUIRE(source != NULL);
173 REQUIRE(mx->common.rdtype == type);
174 REQUIRE(mx->common.rdclass == rdclass);
179 RETERR(uint16_tobuffer(mx->pref, target));
180 dns_name_toregion(&mx->mx, ®ion);
181 return (isc_buffer_copyregion(target, ®ion));
184 static inline isc_result_t
185 tostruct_mx(ARGS_TOSTRUCT) {
187 dns_rdata_mx_t *mx = target;
190 REQUIRE(rdata->type == 15);
191 REQUIRE(target != NULL);
192 REQUIRE(rdata->length != 0);
194 mx->common.rdclass = rdata->rdclass;
195 mx->common.rdtype = rdata->type;
196 ISC_LINK_INIT(&mx->common, link);
198 dns_name_init(&name, NULL);
199 dns_rdata_toregion(rdata, ®ion);
200 mx->pref = uint16_fromregion(®ion);
201 isc_region_consume(®ion, 2);
202 dns_name_fromregion(&name, ®ion);
203 dns_name_init(&mx->mx, NULL);
204 RETERR(name_duporclone(&name, mctx, &mx->mx));
206 return (ISC_R_SUCCESS);
210 freestruct_mx(ARGS_FREESTRUCT) {
211 dns_rdata_mx_t *mx = source;
213 REQUIRE(source != NULL);
214 REQUIRE(mx->common.rdtype == 15);
216 if (mx->mctx == NULL)
219 dns_name_free(&mx->mx, mx->mctx);
223 static inline isc_result_t
224 additionaldata_mx(ARGS_ADDLDATA) {
226 dns_offsets_t offsets;
229 REQUIRE(rdata->type == 15);
231 dns_name_init(&name, offsets);
232 dns_rdata_toregion(rdata, ®ion);
233 isc_region_consume(®ion, 2);
234 dns_name_fromregion(&name, ®ion);
236 return ((add)(arg, &name, dns_rdatatype_a));
239 static inline isc_result_t
240 digest_mx(ARGS_DIGEST) {
244 REQUIRE(rdata->type == 15);
246 dns_rdata_toregion(rdata, &r1);
248 isc_region_consume(&r2, 2);
250 RETERR((digest)(arg, &r1));
251 dns_name_init(&name, NULL);
252 dns_name_fromregion(&name, &r2);
253 return (dns_name_digest(&name, digest, arg));
256 static inline isc_boolean_t
257 checkowner_mx(ARGS_CHECKOWNER) {
264 return (dns_name_ishostname(name, wildcard));
267 static inline isc_boolean_t
268 checknames_mx(ARGS_CHECKNAMES) {
272 REQUIRE(rdata->type == 15);
276 dns_rdata_toregion(rdata, ®ion);
277 isc_region_consume(®ion, 2);
278 dns_name_init(&name, NULL);
279 dns_name_fromregion(&name, ®ion);
280 if (!dns_name_ishostname(&name, ISC_FALSE)) {
282 dns_name_clone(&name, bad);
288 #endif /* RDATA_GENERIC_MX_15_C */