Makes up queries.
[adns] / src / adns-internal.h
1 /**/
2
3 #ifndef ADNS_INTERNAL_H_INCLUDED
4 #define ADNS_INTERNAL_H_INCLUDED
5
6 #include <sys/time.h>
7
8 #include "adns.h"
9
10 #define MAXSERVERS 5
11 #define MAXUDPRETRIES 10
12 #define UDPRETRYMS 2000
13 #define TCPMS 20000
14
15 struct adns__query {
16 adns_query next, back;
17 adns_query parent, child;
18 adns_rrtype type;
19 adns_answer *answer;
20 int id, flags, udpretries, nextserver;
21 unsigned long sentudp, senttcp; /* bitmaps indexed by server */
22 struct timeval timeout;
23 void *context;
24 unsigned char *querymsg;
25 int querylen;
26 char owner[1];
27 /* Possible states:
28 * Queue child answer nextserver sentudp senttcp
29 * input null null 0 all bits zero all bits zero
30 * timew null null any at least 1 bit set any
31 * childw set partial any any any
32 * output null set any any any
33 */
34 };
35
36 struct adns__state {
37 adns_initflags iflags;
38 struct { adns_query head, tail; } input, timew, childw, output;
39 int nextid, udpsocket;
40 int qbufavail, tcpbufavail, tcpbufused, tcpbufdone;
41 unsigned char *qbuf, *tcpbuf;
42 int nservers;
43 struct server {
44 struct in_addr addr;
45 enum { server_disc, server_connecting, server_ok } state;
46 int tcpsocket;
47 struct timeval timeout;
48 struct { adns_query head, tail; } connw;
49 } servers[MAXSERVERS];
50 };
51
52 #endif