299 lines
8.0 KiB
C
299 lines
8.0 KiB
C
/*
|
|
* 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__ */
|