projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| bb0cfa24 | 1 | /* |
| 01b2928e | 2 | * Copyright (c) 1983, 1987, 1989 The Regents of the University of California. |
| 7ee32d6e KB |
3 | * All rights reserved. |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms are permitted | |
| 6 | * provided that the above copyright notice and this paragraph are | |
| 7 | * duplicated in all such forms and that any documentation, | |
| 8 | * advertising materials, and other materials related to such | |
| 9 | * distribution and use acknowledge that the software was developed | |
| 10 | * by the University of California, Berkeley. The name of the | |
| 11 | * University may not be used to endorse or promote products derived | |
| 12 | * from this software without specific prior written permission. | |
| 13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
| 14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
| 15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
| bb0cfa24 | 16 | * |
| 01b2928e | 17 | * @(#)resolv.h 5.8 (Berkeley) %G% |
| bb0cfa24 DF |
18 | */ |
| 19 | ||
| c363c908 MK |
20 | /* |
| 21 | * Resolver configuration file. | |
| 22 | * Normally not present, but may contain the address of the | |
| 23 | * inital name server(s) to query and the domain search list. | |
| 24 | */ | |
| 25 | ||
| 26 | #ifndef _PATH_RESCONF | |
| 27 | #define _PATH_RESCONF "/etc/resolv.conf" | |
| 28 | #endif | |
| 29 | ||
| a4b4ca70 RC |
30 | /* |
| 31 | * Global defines and variables for resolver stub. | |
| 32 | */ | |
| 8fa684c1 | 33 | #define MAXNS 3 /* max # name servers we'll track */ |
| 01b2928e MK |
34 | #define MAXDFLSRCH 3 /* # default domain levels to try */ |
| 35 | #define MAXDNSRCH 6 /* max # domains in search path */ | |
| e0bab101 | 36 | #define LOCALDOMAINPARTS 2 /* min levels in name that is "local" */ |
| 8fa684c1 | 37 | |
| c363c908 | 38 | #define RES_TIMEOUT 5 /* min. seconds between retries */ |
| 8fa684c1 | 39 | |
| a4b4ca70 | 40 | struct state { |
| 8fa684c1 | 41 | int retrans; /* retransmition time interval */ |
| a4b4ca70 | 42 | int retry; /* number of times to retransmit */ |
| 1ca41cc2 | 43 | long options; /* option flags - see below. */ |
| 8fa684c1 KD |
44 | int nscount; /* number of name servers */ |
| 45 | struct sockaddr_in nsaddr_list[MAXNS]; /* address of name server */ | |
| 46 | #define nsaddr nsaddr_list[0] /* for backward compatibility */ | |
| a4b4ca70 RC |
47 | u_short id; /* current packet id */ |
| 48 | char defdname[MAXDNAME]; /* default domain */ | |
| e0bab101 | 49 | char *dnsrch[MAXDNSRCH+1]; /* components of domain to search */ |
| a4b4ca70 RC |
50 | }; |
| 51 | ||
| 52 | /* | |
| 53 | * Resolver options | |
| 54 | */ | |
| 1ca41cc2 JB |
55 | #define RES_INIT 0x0001 /* address initialized */ |
| 56 | #define RES_DEBUG 0x0002 /* print debug messages */ | |
| 57 | #define RES_AAONLY 0x0004 /* authoritative answers only */ | |
| 58 | #define RES_USEVC 0x0008 /* use virtual circuit */ | |
| 59 | #define RES_PRIMARY 0x0010 /* query primary server only */ | |
| 60 | #define RES_IGNTC 0x0020 /* ignore trucation errors */ | |
| 61 | #define RES_RECURSE 0x0040 /* recursion desired */ | |
| 62 | #define RES_DEFNAMES 0x0080 /* use default domain name */ | |
| 63 | #define RES_STAYOPEN 0x0100 /* Keep TCP socket open */ | |
| e0bab101 MK |
64 | #define RES_DNSRCH 0x0200 /* search up local domain tree */ |
| 65 | ||
| 66 | #define RES_DEFAULT (RES_RECURSE | RES_DEFNAMES | RES_DNSRCH) | |
| a4b4ca70 RC |
67 | |
| 68 | extern struct state _res; | |
| 69 | extern char *p_cdname(), *p_rr(), *p_type(), *p_class(); |