2 * Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (C) 1999-2001, 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: rt_21.c,v 1.37.2.3 2004/03/09 06:11:33 marka Exp $ */
20 /* reviewed: Thu Mar 16 15:02:31 PST 2000 by brister */
24 #ifndef RDATA_GENERIC_RT_21_C
25 #define RDATA_GENERIC_RT_21_C
27 #define RRTYPE_RT_ATTRIBUTES (0)
29 static inline isc_result_t
30 fromtext_rt(ARGS_FROMTEXT) {
41 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
43 if (token.value.as_ulong > 0xffffU)
45 RETERR(uint16_tobuffer(token.value.as_ulong, target));
47 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
50 dns_name_init(&name, NULL);
51 buffer_fromregion(&buffer, &token.value.as_region);
52 origin = (origin != NULL) ? origin : dns_rootname;
53 RETTOK(dns_name_fromtext(&name, &buffer, origin, downcase, target));
54 return (ISC_R_SUCCESS);
57 static inline isc_result_t
58 totext_rt(ARGS_TOTEXT) {
63 char buf[sizeof "64000"];
66 REQUIRE(rdata->type == 21);
67 REQUIRE(rdata->length != 0);
69 dns_name_init(&name, NULL);
70 dns_name_init(&prefix, NULL);
72 dns_rdata_toregion(rdata, ®ion);
73 num = uint16_fromregion(®ion);
74 isc_region_consume(®ion, 2);
75 sprintf(buf, "%u", num);
76 RETERR(str_totext(buf, target));
77 RETERR(str_totext(" ", target));
78 dns_name_fromregion(&name, ®ion);
79 sub = name_prefix(&name, tctx->origin, &prefix);
80 return (dns_name_totext(&prefix, sub, target));
83 static inline isc_result_t
84 fromwire_rt(ARGS_FROMWIRE) {
94 dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE);
96 dns_name_init(&name, NULL);
98 isc_buffer_activeregion(source, &sregion);
99 isc_buffer_availableregion(target, &tregion);
100 if (tregion.length < 2)
101 return (ISC_R_NOSPACE);
102 if (sregion.length < 2)
103 return (ISC_R_UNEXPECTEDEND);
104 memcpy(tregion.base, sregion.base, 2);
105 isc_buffer_forward(source, 2);
106 isc_buffer_add(target, 2);
107 return (dns_name_fromwire(&name, source, dctx, downcase, target));
110 static inline isc_result_t
111 towire_rt(ARGS_TOWIRE) {
113 dns_offsets_t offsets;
117 REQUIRE(rdata->type == 21);
118 REQUIRE(rdata->length != 0);
120 dns_compress_setmethods(cctx, DNS_COMPRESS_NONE);
121 isc_buffer_availableregion(target, &tr);
122 dns_rdata_toregion(rdata, ®ion);
124 return (ISC_R_NOSPACE);
125 memcpy(tr.base, region.base, 2);
126 isc_region_consume(®ion, 2);
127 isc_buffer_add(target, 2);
129 dns_name_init(&name, offsets);
130 dns_name_fromregion(&name, ®ion);
132 return (dns_name_towire(&name, cctx, target));
136 compare_rt(ARGS_COMPARE) {
139 isc_region_t region1;
140 isc_region_t region2;
143 REQUIRE(rdata1->type == rdata2->type);
144 REQUIRE(rdata1->rdclass == rdata2->rdclass);
145 REQUIRE(rdata1->type == 21);
146 REQUIRE(rdata1->length != 0);
147 REQUIRE(rdata2->length != 0);
149 order = memcmp(rdata1->data, rdata2->data, 2);
151 return (order < 0 ? -1 : 1);
153 dns_name_init(&name1, NULL);
154 dns_name_init(&name2, NULL);
156 dns_rdata_toregion(rdata1, ®ion1);
157 dns_rdata_toregion(rdata2, ®ion2);
159 isc_region_consume(®ion1, 2);
160 isc_region_consume(®ion2, 2);
162 dns_name_fromregion(&name1, ®ion1);
163 dns_name_fromregion(&name2, ®ion2);
165 return (dns_name_rdatacompare(&name1, &name2));
168 static inline isc_result_t
169 fromstruct_rt(ARGS_FROMSTRUCT) {
170 dns_rdata_rt_t *rt = source;
174 REQUIRE(source != NULL);
175 REQUIRE(rt->common.rdtype == type);
176 REQUIRE(rt->common.rdclass == rdclass);
181 RETERR(uint16_tobuffer(rt->preference, target));
182 dns_name_toregion(&rt->host, ®ion);
183 return (isc_buffer_copyregion(target, ®ion));
186 static inline isc_result_t
187 tostruct_rt(ARGS_TOSTRUCT) {
189 dns_rdata_rt_t *rt = target;
192 REQUIRE(rdata->type == 21);
193 REQUIRE(target != NULL);
194 REQUIRE(rdata->length != 0);
196 rt->common.rdclass = rdata->rdclass;
197 rt->common.rdtype = rdata->type;
198 ISC_LINK_INIT(&rt->common, link);
200 dns_name_init(&name, NULL);
201 dns_rdata_toregion(rdata, ®ion);
202 rt->preference = uint16_fromregion(®ion);
203 isc_region_consume(®ion, 2);
204 dns_name_fromregion(&name, ®ion);
205 dns_name_init(&rt->host, NULL);
206 RETERR(name_duporclone(&name, mctx, &rt->host));
209 return (ISC_R_SUCCESS);
213 freestruct_rt(ARGS_FREESTRUCT) {
214 dns_rdata_rt_t *rt = source;
216 REQUIRE(source != NULL);
217 REQUIRE(rt->common.rdtype == 21);
219 if (rt->mctx == NULL)
222 dns_name_free(&rt->host, rt->mctx);
226 static inline isc_result_t
227 additionaldata_rt(ARGS_ADDLDATA) {
229 dns_offsets_t offsets;
233 REQUIRE(rdata->type == 21);
235 dns_name_init(&name, offsets);
236 dns_rdata_toregion(rdata, ®ion);
237 isc_region_consume(®ion, 2);
238 dns_name_fromregion(&name, ®ion);
240 result = (add)(arg, &name, dns_rdatatype_x25);
241 if (result != ISC_R_SUCCESS)
243 result = (add)(arg, &name, dns_rdatatype_isdn);
244 if (result != ISC_R_SUCCESS)
246 return ((add)(arg, &name, dns_rdatatype_a));
249 static inline isc_result_t
250 digest_rt(ARGS_DIGEST) {
255 REQUIRE(rdata->type == 21);
257 dns_rdata_toregion(rdata, &r1);
259 isc_region_consume(&r2, 2);
261 result = (digest)(arg, &r1);
262 if (result != ISC_R_SUCCESS)
264 dns_name_init(&name, NULL);
265 dns_name_fromregion(&name, &r2);
266 return (dns_name_digest(&name, digest, arg));
269 #endif /* RDATA_GENERIC_RT_21_C */