1/*-
2 * SPDX-License-Identifier: BSD-4-Clause
3 *
4 * Copyright (c) 1995
5 *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *	This product includes software developed by Bill Paul.
18 * 4. Neither the name of the author nor the names of any co-contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * $FreeBSD$
35 */
36
37#include <db.h>
38#include <limits.h>
39#include <stdio.h>
40#include <string.h>
41#include <unistd.h>
42#include <sys/cdefs.h>
43#include <sys/types.h>
44#include <rpc/rpc.h>
45#include <rpcsvc/yp.h>
46
47#ifndef _PATH_YP
48#define _PATH_YP "/var/yp/"
49#endif
50
51#ifndef _PATH_LIBEXEC
52#define _PATH_LIBEXEC "/usr/libexec/"
53#endif
54
55#ifndef MAX_CHILDREN
56#define MAX_CHILDREN 20
57#endif
58
59#define YP_SECURE 0x1
60#define YP_INTERDOMAIN 0x2
61
62/*
63 * External functions and variables.
64 */
65
66extern int	debug;
67extern int	ypdb_debug;
68extern int	do_dns;
69extern int	children;
70extern int	resfd;
71extern char 	*progname;
72extern char	*yp_dir;
73extern pid_t	yp_pid;
74
75extern enum ypstat	yp_errno;
76extern void	yp_error(const char *, ...) __printflike(1, 2);
77#ifdef DB_CACHE
78extern int	yp_get_record(DB *, const DBT *, DBT *, int);
79#else
80extern int	yp_get_record(const char *, const char *, const DBT *, DBT *, int);
81#endif
82extern int	yp_first_record(const DB *, DBT *, DBT *, int);
83extern int	yp_next_record(const DB *, DBT *, DBT *, int, int);
84extern char	*yp_dnsname(char *);
85extern char	*yp_dnsaddr(const char *);
86#ifdef DB_CACHE
87extern int	yp_access(const char *, const char *, const struct svc_req *);
88#else
89extern int	yp_access(const char *, const struct svc_req *);
90#endif
91extern int	yp_validdomain(const char *);
92extern DB	*yp_open_db(const char *, const char *);
93extern DB	*yp_open_db_cache(const char *, const char *, const char *, int);
94extern void	yp_flush_all(void);
95extern void	yp_init_dbs(void);
96extern int	yp_testflag(char *, char *, int);
97extern void	load_securenets(void);
98
99#ifdef DB_CACHE
100extern ypstat	yp_select_map(char *, char *, keydat *, int);
101extern ypstat	yp_getbykey(keydat *, valdat *);
102extern ypstat	yp_firstbykey(keydat *, valdat *);
103extern ypstat	yp_nextbykey(keydat *, valdat *);
104#endif
105
106extern unsigned long	svcudp_set_xid(SVCXPRT *, unsigned long);
107extern unsigned long	svcudp_get_xid(SVCXPRT *);
108
109#ifndef RESOLVER_TIMEOUT
110#define RESOLVER_TIMEOUT 3600
111#endif
112
113extern int	yp_init_resolver(void);
114extern void	yp_run_dnsq(void);
115extern void	yp_prune_dnsq(void);
116extern ypstat	yp_async_lookup_name(struct svc_req *, char *, int);
117extern ypstat	yp_async_lookup_addr(struct svc_req *, char *, int);
118