1 /*
2 * Copyright (C) 2004, 2005, 2007, 2009, 2014, 2015 Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (C) 1999-2002 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: x25_19.c,v 1.41 2009/12/04 22:06:37 tbox Exp $ */
19
20 /* Reviewed: Thu Mar 16 16:15:57 PST 2000 by bwelling */
21
22 /* RFC1183 */
23
24 #ifndef RDATA_GENERIC_X25_19_C
25 #define RDATA_GENERIC_X25_19_C
26
27 #define RRTYPE_X25_ATTRIBUTES (0)
28
29 static inline isc_result_t
fromtext_x25(ARGS_FROMTEXT)30 fromtext_x25(ARGS_FROMTEXT) {
31 isc_token_t token;
32 unsigned int i;
33
34 REQUIRE(type == dns_rdatatype_x25);
35
36 UNUSED(type);
37 UNUSED(rdclass);
38 UNUSED(origin);
39 UNUSED(options);
40 UNUSED(callbacks);
41
42 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_qstring,
43 ISC_FALSE));
44 if (token.value.as_textregion.length < 4)
45 RETTOK(DNS_R_SYNTAX);
46 for (i = 0; i < token.value.as_textregion.length; i++)
47 if (!isdigit(token.value.as_textregion.base[i] & 0xff))
48 RETTOK(ISC_R_RANGE);
49 RETTOK(txt_fromtext(&token.value.as_textregion, target));
50 return (ISC_R_SUCCESS);
51 }
52
53 static inline isc_result_t
totext_x25(ARGS_TOTEXT)54 totext_x25(ARGS_TOTEXT) {
55 isc_region_t region;
56
57 UNUSED(tctx);
58
59 REQUIRE(rdata->type == dns_rdatatype_x25);
60 REQUIRE(rdata->length != 0);
61
62 dns_rdata_toregion(rdata, ®ion);
63 return (txt_totext(®ion, ISC_TRUE, target));
64 }
65
66 static inline isc_result_t
fromwire_x25(ARGS_FROMWIRE)67 fromwire_x25(ARGS_FROMWIRE) {
68 isc_region_t sr;
69
70 REQUIRE(type == dns_rdatatype_x25);
71
72 UNUSED(type);
73 UNUSED(dctx);
74 UNUSED(rdclass);
75 UNUSED(options);
76
77 isc_buffer_activeregion(source, &sr);
78 if (sr.length < 5)
79 return (DNS_R_FORMERR);
80 return (txt_fromwire(source, target));
81 }
82
83 static inline isc_result_t
towire_x25(ARGS_TOWIRE)84 towire_x25(ARGS_TOWIRE) {
85 UNUSED(cctx);
86
87 REQUIRE(rdata->type == dns_rdatatype_x25);
88 REQUIRE(rdata->length != 0);
89
90 return (mem_tobuffer(target, rdata->data, rdata->length));
91 }
92
93 static inline int
compare_x25(ARGS_COMPARE)94 compare_x25(ARGS_COMPARE) {
95 isc_region_t r1;
96 isc_region_t r2;
97
98 REQUIRE(rdata1->type == rdata2->type);
99 REQUIRE(rdata1->rdclass == rdata2->rdclass);
100 REQUIRE(rdata1->type == dns_rdatatype_x25);
101 REQUIRE(rdata1->length != 0);
102 REQUIRE(rdata2->length != 0);
103
104 dns_rdata_toregion(rdata1, &r1);
105 dns_rdata_toregion(rdata2, &r2);
106 return (isc_region_compare(&r1, &r2));
107 }
108
109 static inline isc_result_t
fromstruct_x25(ARGS_FROMSTRUCT)110 fromstruct_x25(ARGS_FROMSTRUCT) {
111 dns_rdata_x25_t *x25 = source;
112 isc_uint8_t i;
113
114 REQUIRE(type == dns_rdatatype_x25);
115 REQUIRE(source != NULL);
116 REQUIRE(x25->common.rdtype == type);
117 REQUIRE(x25->common.rdclass == rdclass);
118 REQUIRE(x25->x25 != NULL && x25->x25_len != 0);
119
120 UNUSED(type);
121 UNUSED(rdclass);
122
123 if (x25->x25_len < 4)
124 return (ISC_R_RANGE);
125
126 for (i = 0; i < x25->x25_len; i++)
127 if (!isdigit(x25->x25[i] & 0xff))
128 return (ISC_R_RANGE);
129
130 RETERR(uint8_tobuffer(x25->x25_len, target));
131 return (mem_tobuffer(target, x25->x25, x25->x25_len));
132 }
133
134 static inline isc_result_t
tostruct_x25(ARGS_TOSTRUCT)135 tostruct_x25(ARGS_TOSTRUCT) {
136 dns_rdata_x25_t *x25 = target;
137 isc_region_t r;
138
139 REQUIRE(rdata->type == dns_rdatatype_x25);
140 REQUIRE(target != NULL);
141 REQUIRE(rdata->length != 0);
142
143 x25->common.rdclass = rdata->rdclass;
144 x25->common.rdtype = rdata->type;
145 ISC_LINK_INIT(&x25->common, link);
146
147 dns_rdata_toregion(rdata, &r);
148 x25->x25_len = uint8_fromregion(&r);
149 isc_region_consume(&r, 1);
150 x25->x25 = mem_maybedup(mctx, r.base, x25->x25_len);
151 if (x25->x25 == NULL)
152 return (ISC_R_NOMEMORY);
153
154 x25->mctx = mctx;
155 return (ISC_R_SUCCESS);
156 }
157
158 static inline void
freestruct_x25(ARGS_FREESTRUCT)159 freestruct_x25(ARGS_FREESTRUCT) {
160 dns_rdata_x25_t *x25 = source;
161 REQUIRE(source != NULL);
162 REQUIRE(x25->common.rdtype == dns_rdatatype_x25);
163
164 if (x25->mctx == NULL)
165 return;
166
167 if (x25->x25 != NULL)
168 isc_mem_free(x25->mctx, x25->x25);
169 x25->mctx = NULL;
170 }
171
172 static inline isc_result_t
additionaldata_x25(ARGS_ADDLDATA)173 additionaldata_x25(ARGS_ADDLDATA) {
174 REQUIRE(rdata->type == dns_rdatatype_x25);
175
176 UNUSED(rdata);
177 UNUSED(add);
178 UNUSED(arg);
179
180 return (ISC_R_SUCCESS);
181 }
182
183 static inline isc_result_t
digest_x25(ARGS_DIGEST)184 digest_x25(ARGS_DIGEST) {
185 isc_region_t r;
186
187 REQUIRE(rdata->type == dns_rdatatype_x25);
188
189 dns_rdata_toregion(rdata, &r);
190
191 return ((digest)(arg, &r));
192 }
193
194 static inline isc_boolean_t
checkowner_x25(ARGS_CHECKOWNER)195 checkowner_x25(ARGS_CHECKOWNER) {
196
197 REQUIRE(type == dns_rdatatype_x25);
198
199 UNUSED(name);
200 UNUSED(type);
201 UNUSED(rdclass);
202 UNUSED(wildcard);
203
204 return (ISC_TRUE);
205 }
206
207 static inline isc_boolean_t
checknames_x25(ARGS_CHECKNAMES)208 checknames_x25(ARGS_CHECKNAMES) {
209
210 REQUIRE(rdata->type == dns_rdatatype_x25);
211
212 UNUSED(rdata);
213 UNUSED(owner);
214 UNUSED(bad);
215
216 return (ISC_TRUE);
217 }
218
219 static inline int
casecompare_x25(ARGS_COMPARE)220 casecompare_x25(ARGS_COMPARE) {
221 return (compare_x25(rdata1, rdata2));
222 }
223
224 #endif /* RDATA_GENERIC_X25_19_C */
225