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/*
* Copyright (c) 1983, 1987 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*
* @(#)resolv.h 5.5 (Berkeley) 5/12/87
*/
/*
* Global defines and variables for resolver stub.
*/
#define MAXNS 3 /* max # name servers we'll track */
#define MAXDNSRCH 3 /* max # default domain levels to try */
#define LOCALDOMAINPARTS 2 /* min levels in name that is "local" */
#define RES_TIMEOUT 4 /* seconds between retries */
struct state {
int retrans; /* retransmition time interval */
int retry; /* number of times to retransmit */
long options; /* option flags - see below. */
int nscount; /* number of name servers */
struct sockaddr_in nsaddr_list[MAXNS]; /* address of name server */
#define nsaddr nsaddr_list[0] /* for backward compatibility */
u_short id; /* current packet id */
char defdname[MAXDNAME]; /* default domain */
char *dnsrch[MAXDNSRCH+1]; /* components of domain to search */
};
/*
* Resolver options
*/
#define RES_INIT 0x0001 /* address initialized */
#define RES_DEBUG 0x0002 /* print debug messages */
#define RES_AAONLY 0x0004 /* authoritative answers only */
#define RES_USEVC 0x0008 /* use virtual circuit */
#define RES_PRIMARY 0x0010 /* query primary server only */
#define RES_IGNTC 0x0020 /* ignore trucation errors */
#define RES_RECURSE 0x0040 /* recursion desired */
#define RES_DEFNAMES 0x0080 /* use default domain name */
#define RES_STAYOPEN 0x0100 /* Keep TCP socket open */
#define RES_DNSRCH 0x0200 /* search up local domain tree */
#define RES_DEFAULT (RES_RECURSE | RES_DEFNAMES | RES_DNSRCH)
extern struct state _res;
extern char *p_cdname(), *p_rr(), *p_type(), *p_class();
#ifndef __STRICT_BSD__
int res_mkquery (int op, char *dname, int class, int type,
char *data, int datalen, struct rrec *newrr,
char *buf, int buflen);
int res_send (char *msg, int msglen, char *answer, int anslen);
int res_init (void);
int dn_comp (char *exp_dn, char *comp_dn, int length,
char **dnptrs, char **lastdnptr);
int dn_expand (unsigned char *msg, unsigned char *eomorig,
unsigned char *comp_dn, unsigned char *exp_dn,
int length);
#endif
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.