1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
|
/*
* Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
* Copyright (C) 1998-2002 Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $ISC: a_1.c,v 1.46.12.5 2004/03/08 09:04:43 marka Exp $ */
/* Reviewed: Thu Mar 16 16:52:50 PST 2000 by bwelling */
#ifndef RDATA_IN_1_A_1_C
#define RDATA_IN_1_A_1_C
#include <string.h>
#include <isc/net.h>
#define RRTYPE_A_ATTRIBUTES (0)
static inline isc_result_t
fromtext_in_a(ARGS_FROMTEXT) {
isc_token_t token;
struct in_addr addr;
isc_region_t region;
REQUIRE(type == 1);
REQUIRE(rdclass == 1);
UNUSED(type);
UNUSED(origin);
UNUSED(options);
UNUSED(rdclass);
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
ISC_FALSE));
if (getquad(DNS_AS_STR(token), &addr, lexer, callbacks) != 1)
RETTOK(DNS_R_BADDOTTEDQUAD);
isc_buffer_availableregion(target, ®ion);
if (region.length < 4)
return (ISC_R_NOSPACE);
memcpy(region.base, &addr, 4);
isc_buffer_add(target, 4);
return (ISC_R_SUCCESS);
}
static inline isc_result_t
totext_in_a(ARGS_TOTEXT) {
isc_region_t region;
REQUIRE(rdata->type == 1);
REQUIRE(rdata->rdclass == 1);
REQUIRE(rdata->length == 4);
UNUSED(tctx);
dns_rdata_toregion(rdata, ®ion);
return (inet_totext(AF_INET, ®ion, target));
}
static inline isc_result_t
fromwire_in_a(ARGS_FROMWIRE) {
isc_region_t sregion;
isc_region_t tregion;
REQUIRE(type == 1);
REQUIRE(rdclass == 1);
UNUSED(type);
UNUSED(dctx);
UNUSED(options);
UNUSED(rdclass);
isc_buffer_activeregion(source, &sregion);
isc_buffer_availableregion(target, &tregion);
if (sregion.length < 4)
return (ISC_R_UNEXPECTEDEND);
if (tregion.length < 4)
return (ISC_R_NOSPACE);
memcpy(tregion.base, sregion.base, 4);
isc_buffer_forward(source, 4);
isc_buffer_add(target, 4);
return (ISC_R_SUCCESS);
}
static inline isc_result_t
towire_in_a(ARGS_TOWIRE) {
isc_region_t region;
REQUIRE(rdata->type == 1);
REQUIRE(rdata->rdclass == 1);
REQUIRE(rdata->length == 4);
UNUSED(cctx);
isc_buffer_availableregion(target, ®ion);
if (region.length < rdata->length)
return (ISC_R_NOSPACE);
memcpy(region.base, rdata->data, rdata->length);
isc_buffer_add(target, 4);
return (ISC_R_SUCCESS);
}
static inline int
compare_in_a(ARGS_COMPARE) {
isc_region_t r1;
isc_region_t r2;
REQUIRE(rdata1->type == rdata2->type);
REQUIRE(rdata1->rdclass == rdata2->rdclass);
REQUIRE(rdata1->type == 1);
REQUIRE(rdata1->rdclass == 1);
REQUIRE(rdata1->length == 4);
REQUIRE(rdata2->length == 4);
dns_rdata_toregion(rdata1, &r1);
dns_rdata_toregion(rdata2, &r2);
return (isc_region_compare(&r1, &r2));
}
static inline isc_result_t
fromstruct_in_a(ARGS_FROMSTRUCT) {
dns_rdata_in_a_t *a = source;
isc_uint32_t n;
REQUIRE(type == 1);
REQUIRE(rdclass == 1);
REQUIRE(source != NULL);
REQUIRE(a->common.rdtype == type);
REQUIRE(a->common.rdclass == rdclass);
UNUSED(type);
UNUSED(rdclass);
n = ntohl(a->in_addr.s_addr);
return (uint32_tobuffer(n, target));
}
static inline isc_result_t
tostruct_in_a(ARGS_TOSTRUCT) {
dns_rdata_in_a_t *a = target;
isc_uint32_t n;
isc_region_t region;
REQUIRE(rdata->type == 1);
REQUIRE(rdata->rdclass == 1);
REQUIRE(rdata->length == 4);
UNUSED(mctx);
a->common.rdclass = rdata->rdclass;
a->common.rdtype = rdata->type;
ISC_LINK_INIT(&a->common, link);
dns_rdata_toregion(rdata, ®ion);
n = uint32_fromregion(®ion);
a->in_addr.s_addr = htonl(n);
return (ISC_R_SUCCESS);
}
static inline void
freestruct_in_a(ARGS_FREESTRUCT) {
dns_rdata_in_a_t *a = source;
REQUIRE(source != NULL);
REQUIRE(a->common.rdtype == 1);
REQUIRE(a->common.rdclass == 1);
UNUSED(a);
}
static inline isc_result_t
additionaldata_in_a(ARGS_ADDLDATA) {
REQUIRE(rdata->type == 1);
REQUIRE(rdata->rdclass == 1);
UNUSED(rdata);
UNUSED(add);
UNUSED(arg);
return (ISC_R_SUCCESS);
}
static inline isc_result_t
digest_in_a(ARGS_DIGEST) {
isc_region_t r;
REQUIRE(rdata->type == 1);
REQUIRE(rdata->rdclass == 1);
dns_rdata_toregion(rdata, &r);
return ((digest)(arg, &r));
}
static inline isc_boolean_t
checkowner_in_a(ARGS_CHECKOWNER) {
REQUIRE(type == 1);
REQUIRE(rdclass == 1);
UNUSED(type);
UNUSED(rdclass);
return (dns_name_ishostname(name, wildcard));
}
static inline isc_boolean_t
checknames_in_a(ARGS_CHECKNAMES) {
REQUIRE(rdata->type == 1);
REQUIRE(rdata->rdclass == 1);
UNUSED(rdata);
UNUSED(owner);
UNUSED(bad);
return (ISC_TRUE);
}
#endif /* RDATA_IN_1_A_1_C */
|
