/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 1989 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*      Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T     */
/*        All Rights Reserved   */

/*
 * Portions of this source code were derived from Berkeley 4.3 BSD
 * under license from the Regents of the University of California.
 */

/*
 * Global defines and variables for resolver stub.
 */

#ifndef _RESOLV_H
#define _RESOLV_H

#include <stdio.h>

#ifdef  __cplusplus
extern "C" {
#endif

/*
 * Resolver configuration file.
 * Normally not present, but may contain the address of the
 * inital name server(s) to query and the domain search list.
 */

#ifndef _PATH_RESCONF
#define _PATH_RESCONF   "/etc/resolv.conf"
#endif

#define ADDRSORT        1               /* enable the address-sorting option */
#define MAXADDR         10              /* max # addresses to sort by */

#define MAXNS           3               /* max # name servers we'll track */
#define MAXDFLSRCH      3               /* # default domain levels to try */
#define MAXDNSRCH       6               /* max # default domain levels to try */
#define LOCALDOMAINPARTS 2              /* min levels in name that is "local" */

#define RES_TIMEOUT     6               /* 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 */
        int     ascount;                /* number of addresses */
        struct  in_addr sort_list[MAXADDR]; /* address sorting list */
};

/*
 * 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;

#ifdef __STDC__
extern char *p_cdname(char *, char *, FILE *);
extern char *p_rr(char *, char *, FILE *);
extern char *p_type(int);
extern char *p_class(int);
extern char *p_time(unsigned long);
#else
extern char *p_cdname(), *p_rr(), *p_type(), *p_class(), *p_time();
#endif  /* __STDC__ */

#ifdef  __cplusplus
}
#endif

#endif  /* _RESOLV_H */