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
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
|
/*
* Copyright (c) 1995 - 2002 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/* $Id: resolve.h 14773 2005-04-12 11:29:18Z lha $ */
#ifndef __RESOLVE_H__
#define __RESOLVE_H__
#ifndef ROKEN_LIB_FUNCTION
#ifdef _WIN32
#define ROKEN_LIB_FUNCTION _stdcall
#else
#define ROKEN_LIB_FUNCTION
#endif
#endif
typedef enum {
rk_ns_t_invalid = 0, /* Cookie. */
rk_ns_t_a = 1, /* Host address. */
rk_ns_t_ns = 2, /* Authoritative server. */
rk_ns_t_md = 3, /* Mail destination. */
rk_ns_t_mf = 4, /* Mail forwarder. */
rk_ns_t_cname = 5, /* Canonical name. */
rk_ns_t_soa = 6, /* Start of authority zone. */
rk_ns_t_mb = 7, /* Mailbox domain name. */
rk_ns_t_mg = 8, /* Mail group member. */
rk_ns_t_mr = 9, /* Mail rename name. */
rk_ns_t_null = 10, /* Null resource record. */
rk_ns_t_wks = 11, /* Well known service. */
rk_ns_t_ptr = 12, /* Domain name pointer. */
rk_ns_t_hinfo = 13, /* Host information. */
rk_ns_t_minfo = 14, /* Mailbox information. */
rk_ns_t_mx = 15, /* Mail routing information. */
rk_ns_t_txt = 16, /* Text strings. */
rk_ns_t_rp = 17, /* Responsible person. */
rk_ns_t_afsdb = 18, /* AFS cell database. */
rk_ns_t_x25 = 19, /* X_25 calling address. */
rk_ns_t_isdn = 20, /* ISDN calling address. */
rk_ns_t_rt = 21, /* Router. */
rk_ns_t_nsap = 22, /* NSAP address. */
rk_ns_t_nsap_ptr = 23, /* Reverse NSAP lookup (deprecated). */
rk_ns_t_sig = 24, /* Security signature. */
rk_ns_t_key = 25, /* Security key. */
rk_ns_t_px = 26, /* X.400 mail mapping. */
rk_ns_t_gpos = 27, /* Geographical position (withdrawn). */
rk_ns_t_aaaa = 28, /* Ip6 Address. */
rk_ns_t_loc = 29, /* Location Information. */
rk_ns_t_nxt = 30, /* Next domain (security). */
rk_ns_t_eid = 31, /* Endpoint identifier. */
rk_ns_t_nimloc = 32, /* Nimrod Locator. */
rk_ns_t_srv = 33, /* Server Selection. */
rk_ns_t_atma = 34, /* ATM Address */
rk_ns_t_naptr = 35, /* Naming Authority PoinTeR */
rk_ns_t_kx = 36, /* Key Exchange */
rk_ns_t_cert = 37, /* Certification record */
rk_ns_t_a6 = 38, /* IPv6 address (deprecates AAAA) */
rk_ns_t_dname = 39, /* Non-terminal DNAME (for IPv6) */
rk_ns_t_sink = 40, /* Kitchen sink (experimentatl) */
rk_ns_t_opt = 41, /* EDNS0 option (meta-RR) */
rk_ns_t_apl = 42, /* Address prefix list (RFC 3123) */
rk_ns_t_ds = 43, /* Delegation Signer (RFC 3658) */
rk_ns_t_sshfp = 44, /* SSH fingerprint */
rk_ns_t_tkey = 249, /* Transaction key */
rk_ns_t_tsig = 250, /* Transaction signature. */
rk_ns_t_ixfr = 251, /* Incremental zone transfer. */
rk_ns_t_axfr = 252, /* Transfer zone of authority. */
rk_ns_t_mailb = 253, /* Transfer mailbox records. */
rk_ns_t_maila = 254, /* Transfer mail agent records. */
rk_ns_t_any = 255, /* Wildcard match. */
rk_ns_t_zxfr = 256, /* BIND-specific, nonstandard. */
rk_ns_t_max = 65536
} rk_ns_type;
/* We use these, but they are not always present in <arpa/nameser.h> */
#ifndef C_IN
#define C_IN 1
#endif
#ifndef T_A
#define T_A 1
#endif
#ifndef T_NS
#define T_NS 2
#endif
#ifndef T_CNAME
#define T_CNAME 5
#endif
#ifndef T_SOA
#define T_SOA 5
#endif
#ifndef T_PTR
#define T_PTR 12
#endif
#ifndef T_MX
#define T_MX 15
#endif
#ifndef T_TXT
#define T_TXT 16
#endif
#ifndef T_AFSDB
#define T_AFSDB 18
#endif
#ifndef T_SIG
#define T_SIG 24
#endif
#ifndef T_KEY
#define T_KEY 25
#endif
#ifndef T_AAAA
#define T_AAAA 28
#endif
#ifndef T_SRV
#define T_SRV 33
#endif
#ifndef T_NAPTR
#define T_NAPTR 35
#endif
#ifndef T_CERT
#define T_CERT 37
#endif
#ifndef T_SSHFP
#define T_SSHFP 44
#endif
#ifndef MAXDNAME
#define MAXDNAME 1025
#endif
#define dns_query rk_dns_query
#define mx_record rk_mx_record
#define srv_record rk_srv_record
#define key_record rk_key_record
#define sig_record rk_sig_record
#define cert_record rk_cert_record
#define sshfp_record rk_sshfp_record
#define resource_record rk_resource_record
#define dns_reply rk_dns_reply
#define dns_lookup rk_dns_lookup
#define dns_free_data rk_dns_free_data
#define dns_string_to_type rk_dns_string_to_type
#define dns_type_to_string rk_dns_type_to_string
#define dns_srv_order rk_dns_srv_order
struct dns_query{
char *domain;
unsigned type;
unsigned class;
};
struct mx_record{
unsigned preference;
char domain[1];
};
struct srv_record{
unsigned priority;
unsigned weight;
unsigned port;
char target[1];
};
struct key_record {
unsigned flags;
unsigned protocol;
unsigned algorithm;
size_t key_len;
u_char key_data[1];
};
struct sig_record {
unsigned type;
unsigned algorithm;
unsigned labels;
unsigned orig_ttl;
unsigned sig_expiration;
unsigned sig_inception;
unsigned key_tag;
char *signer;
unsigned sig_len;
char sig_data[1]; /* also includes signer */
};
struct cert_record {
unsigned type;
unsigned tag;
unsigned algorithm;
size_t cert_len;
u_char cert_data[1];
};
struct sshfp_record {
unsigned algorithm;
unsigned type;
size_t sshfp_len;
u_char sshfp_data[1];
};
struct ds_record {
unsigned key_tag;
unsigned algorithm;
unsigned digest_type;
unsigned digest_len;
u_char digest_data[1];
};
struct resource_record{
char *domain;
unsigned type;
unsigned class;
unsigned ttl;
unsigned size;
union {
void *data;
struct mx_record *mx;
struct mx_record *afsdb; /* mx and afsdb are identical */
struct srv_record *srv;
struct in_addr *a;
char *txt;
struct key_record *key;
struct cert_record *cert;
struct sig_record *sig;
struct sshfp_record *sshfp;
struct ds_record *ds;
}u;
struct resource_record *next;
};
#define rk_DNS_MAX_PACKET_SIZE 0xffff
struct dns_header {
unsigned id;
unsigned flags;
#define rk_DNS_HEADER_RESPONSE_FLAG 1
#define rk_DNS_HEADER_AUTHORITIVE_ANSWER 2
#define rk_DNS_HEADER_TRUNCATED_MESSAGE 4
#define rk_DNS_HEADER_RECURSION_DESIRED 8
#define rk_DNS_HEADER_RECURSION_AVAILABLE 16
#define rk_DNS_HEADER_AUTHENTIC_DATA 32
#define rk_DNS_HEADER_CHECKING_DISABLED 64
unsigned opcode;
unsigned response_code;
unsigned qdcount;
unsigned ancount;
unsigned nscount;
unsigned arcount;
};
struct dns_reply{
struct dns_header h;
struct dns_query q;
struct resource_record *head;
};
struct dns_reply* ROKEN_LIB_FUNCTION
dns_lookup(const char *, const char *);
void ROKEN_LIB_FUNCTION
dns_free_data(struct dns_reply *);
int ROKEN_LIB_FUNCTION
dns_string_to_type(const char *name);
const char *ROKEN_LIB_FUNCTION
dns_type_to_string(int type);
void ROKEN_LIB_FUNCTION
dns_srv_order(struct dns_reply*);
#endif /* __RESOLVE_H__ */
|
