1 |
/* |
2 |
* include/irc_res.h for referencing functions in src/irc_res.c |
3 |
* |
4 |
* $Id$ |
5 |
*/ |
6 |
|
7 |
#ifndef INCLUDED_irc_res_h |
8 |
#define INCLUDED_irc_res_h |
9 |
|
10 |
#include "config.h" |
11 |
|
12 |
struct Client; /* XXX */ |
13 |
|
14 |
/* Here we define some values lifted from nameser.h */ |
15 |
#define NS_NOTIFY_OP 4 |
16 |
#define NS_INT16SZ 2 |
17 |
#define NS_IN6ADDRSZ 16 |
18 |
#define NS_INADDRSZ 4 |
19 |
#define NS_INT32SZ 4 |
20 |
#define NS_CMPRSFLGS 0xc0 |
21 |
#define NS_MAXCDNAME 255 |
22 |
#define QUERY 0 |
23 |
#define IQUERY 1 |
24 |
#define NO_ERRORS 0 |
25 |
#define SERVFAIL 2 |
26 |
#define NXDOMAIN 3 |
27 |
#define T_A 1 |
28 |
#define T_AAAA 28 |
29 |
#define T_PTR 12 |
30 |
#define T_CNAME 5 |
31 |
#define T_NULL 10 |
32 |
#define C_IN 1 |
33 |
#define QFIXEDSZ 4 |
34 |
#define RRFIXEDSZ 10 |
35 |
#define HFIXEDSZ 12 |
36 |
|
37 |
|
38 |
|
39 |
typedef struct |
40 |
{ |
41 |
unsigned id :16; /* query identification number */ |
42 |
#ifdef WORDS_BIGENDIAN |
43 |
/* fields in third byte */ |
44 |
unsigned qr: 1; /* response flag */ |
45 |
unsigned opcode: 4; /* purpose of message */ |
46 |
unsigned aa: 1; /* authoritive answer */ |
47 |
unsigned tc: 1; /* truncated message */ |
48 |
unsigned rd: 1; /* recursion desired */ |
49 |
/* fields in fourth byte */ |
50 |
unsigned ra: 1; /* recursion available */ |
51 |
unsigned unused :1; /* unused bits (MBZ as of 4.9.3a3) */ |
52 |
unsigned ad: 1; /* authentic data from named */ |
53 |
unsigned cd: 1; /* checking disabled by resolver */ |
54 |
unsigned rcode :4; /* response code */ |
55 |
#else |
56 |
/* fields in third byte */ |
57 |
unsigned rd :1; /* recursion desired */ |
58 |
unsigned tc :1; /* truncated message */ |
59 |
unsigned aa :1; /* authoritive answer */ |
60 |
unsigned opcode :4; /* purpose of message */ |
61 |
unsigned qr :1; /* response flag */ |
62 |
/* fields in fourth byte */ |
63 |
unsigned rcode :4; /* response code */ |
64 |
unsigned cd: 1; /* checking disabled by resolver */ |
65 |
unsigned ad: 1; /* authentic data from named */ |
66 |
unsigned unused :1; /* unused bits (MBZ as of 4.9.3a3) */ |
67 |
unsigned ra :1; /* recursion available */ |
68 |
#endif |
69 |
/* remaining bytes */ |
70 |
unsigned qdcount :16; /* number of question entries */ |
71 |
unsigned ancount :16; /* number of answer entries */ |
72 |
unsigned nscount :16; /* number of authority entries */ |
73 |
unsigned arcount :16; /* number of resource entries */ |
74 |
} HEADER; |
75 |
|
76 |
typedef void (*dns_callback_fnc)(void *, const struct irc_ssaddr *, const char *); |
77 |
|
78 |
extern void init_resolver(void); |
79 |
extern void restart_resolver(void); |
80 |
extern void delete_resolver_queries(const void *); |
81 |
extern void report_dns_servers(struct Client *); |
82 |
extern void gethost_byname_type(dns_callback_fnc , void *, const char *, int); |
83 |
extern void gethost_byname(dns_callback_fnc, void *, const char *); |
84 |
extern void gethost_byaddr(dns_callback_fnc, void *, const struct irc_ssaddr *); |
85 |
extern void add_local_domain(char *, size_t); |
86 |
|
87 |
#endif |