1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*	Copyright (c) 1992 Sun Microsystems, Inc.	*/
23/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
24/*	  All Rights Reserved  	*/
25
26
27/*
28 * netdir.h
29 *
30 * This is the include file that defines various structures and
31 * constants used by the netdir routines.
32 */
33
34#ifndef _NETDIR_H
35#define	_NETDIR_H
36
37#pragma ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.5	*/
38
39/*
40 * This files uses struct netconfig, and netconfig.h must be included
41 * before this to avoid warnings.
42 */
43
44#include <netconfig.h>
45
46#ifdef	__cplusplus
47extern "C" {
48#endif
49
50struct nd_addrlist {
51	int 		n_cnt;		/* number of netbufs */
52	struct netbuf 	*n_addrs;	/* the netbufs */
53};
54
55struct nd_hostservlist {
56	int			h_cnt;		/* number of nd_hostservs */
57	struct nd_hostserv	*h_hostservs;	/* the entries */
58};
59
60struct nd_hostserv {
61	char		*h_host;	/* the host name */
62	char		*h_serv;	/* the service name */
63};
64
65struct nd_mergearg {
66	char		*s_uaddr;	/* servers universal address */
67	char		*c_uaddr;	/* clients universal address */
68	char		*m_uaddr;	/* merged universal address */
69};
70
71/*
72 * _nderror is a private variable to the netdir system.
73 */
74#ifdef _REENTRANT
75extern int	*__nderror();
76#define	_nderror	(*(__nderror()))
77#else
78extern int _nderror;
79#endif  /* _REENTRANT */
80
81
82#ifdef __STDC__
83
84int netdir_options(struct netconfig *, int option, int fd, char *par);
85int netdir_getbyname(struct netconfig *, struct nd_hostserv *,
86    struct nd_addrlist **);
87int netdir_getbyaddr(struct netconfig *, struct nd_hostservlist **,
88    struct netbuf *);
89int __netdir_getbyaddr_nosrv(struct netconfig *, struct nd_hostservlist **,
90    struct netbuf *);
91int netdir_mergeaddr(struct netconfig *, char **muaddr, char *uaddr,
92    char *ruaddr);
93void netdir_free(void *, int);
94struct netbuf *uaddr2taddr(struct netconfig *, char *);
95char *taddr2uaddr(struct netconfig *, struct netbuf *);
96void netdir_perror(char *);
97char *netdir_sperror();
98struct nd_addrlist *_netdir_getbyname(struct netconfig *, struct nd_hostserv *);
99struct nd_hostservlist *_netdir_getbyaddr(struct netconfig *, struct netbuf *);
100struct netbuf *_uaddr2taddr(struct netconfig *, char *);
101char *_taddr2uaddr(struct netconfig *, struct netbuf *);
102char *_netdir_mergeaddr(struct netconfig *, char *uaddr, char *ruaddr);
103
104#else	/* __STDC__ */
105
106int netdir_options();
107int netdir_getbyname();
108int netdir_getbyaddr();
109int netdir_mergeaddr();
110void netdir_free();
111struct netbuf *uaddr2taddr();
112void netdir_perror();
113char *netdir_sperror();
114char *taddr2uaddr();
115struct nd_addrlist *_netdir_getbyname();
116struct nd_hostservlist *_netdir_getbyaddr();
117char *_netdir_mergeaddr();
118struct netbuf *_uaddr2taddr();
119char *_taddr2uaddr();
120
121#endif	/* __STDC__ */
122
123/*
124 * These are all objects that can be freed by netdir_free
125 */
126#define	ND_HOSTSERV	0
127#define	ND_HOSTSERVLIST	1
128#define	ND_ADDR		2
129#define	ND_ADDRLIST	3
130
131/*
132 * These are the various errors that can be encountered while attempting
133 * to translate names to addresses. Note that none of them (except maybe
134 * no memory) are truely fatal unless the ntoa deamon is on its last attempt
135 * to translate the name. First four errors are to failitate return values
136 * from DNS, that are used by mail and others.
137 *
138 * Negative errors terminate the search resolution process, positive errors
139 * are treated as warnings.
140 */
141
142#define	ND_TRY_AGAIN	-5	/* Non-Authoritive Host not found, or */
143				/* SERVERFAIL */
144#define	ND_NO_RECOVERY	-4	/* Non recoverable errors, FORMERR, REFUSED, */
145				/* NOTIMP */
146#define	ND_NO_DATA	-3	/* Valid name, no data record of requested */
147				/* type */
148#define	ND_NO_ADDRESS ND_NO_DATA /* no address, look for MX record */
149#define	ND_BADARG	-2	/* Bad arguments passed 	*/
150#define	ND_NOMEM 	-1	/* No virtual memory left	*/
151#define	ND_OK		0	/* Translation successful	*/
152#define	ND_NOHOST	1	/* Hostname was not resolvable	*/
153#define	ND_NOSERV	2	/* Service was unknown		*/
154#define	ND_NOSYM	3	/* Couldn't resolve symbol	*/
155#define	ND_OPEN		4	/* File couldn't be opened	*/
156#define	ND_ACCESS	5	/* File is not accessable	*/
157#define	ND_UKNWN	6	/* Unknown object to be freed	*/
158#define	ND_NOCTRL	7	/* Unknown option passed to netdir_options */
159#define	ND_FAILCTRL	8	/* Option failed in netdir_options */
160#define	ND_SYSTEM	9	/* Other System error		*/
161
162/*
163 * The following netdir_options commands can be given to the fd. These is
164 * a way of providing for any transport specific action which the caller
165 * may want to initiate on his transport. It is up to the trasport provider
166 * to support the netdir_options he wants to support.
167 */
168
169#define	ND_SET_BROADCAST	1	/* Do t_optmgmt to support broadcast */
170#define	ND_SET_RESERVEDPORT	2	/* bind it to reserve address */
171#define	ND_CHECK_RESERVEDPORT	3	/* check if address is reserved */
172#define	ND_MERGEADDR		4	/* Merge universal address */
173
174/*
175 *	The following special case host names are used to give the underlying
176 *	transport provides a clue as to the intent of the request.
177 */
178
179#define	HOST_SELF	"\\1"
180#define	HOST_ANY	"\\2"
181#define	HOST_BROADCAST	"\\3"
182#define	HOST_SELF_BIND	HOST_SELF
183#define	HOST_SELF_CONNECT	"\\4"
184
185#ifdef	__cplusplus
186}
187#endif
188
189#endif	/* _NETDIR_H */
190