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 /*
23 * Copyright 2014 Garrett D'Amore <garrett@damore.org>
24 */
25 /* Copyright (c) 1992 Sun Microsystems, Inc. */
26 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
27 /* All Rights Reserved */
28
29 /*
30 * netdir.h
31 *
32 * This is the include file that defines various structures and
33 * constants used by the netdir routines.
34 */
35
36 #ifndef _NETDIR_H
37 #define _NETDIR_H
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
47 extern "C" {
48 #endif
49
50 struct nd_addrlist {
51 int n_cnt; /* number of netbufs */
52 struct netbuf *n_addrs; /* the netbufs */
53 };
54
55 struct nd_hostservlist {
56 int h_cnt; /* number of nd_hostservs */
57 struct nd_hostserv *h_hostservs; /* the entries */
58 };
59
60 struct nd_hostserv {
61 char *h_host; /* the host name */
62 char *h_serv; /* the service name */
63 };
64
65 struct 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
75 extern int *__nderror();
76 #define _nderror (*(__nderror()))
77 #else
78 extern int _nderror;
79 #endif /* _REENTRANT */
80
81
82 int netdir_options(struct netconfig *, int option, int fd, char *par);
83 int netdir_getbyname(struct netconfig *, struct nd_hostserv *,
84 struct nd_addrlist **);
85 int netdir_getbyaddr(struct netconfig *, struct nd_hostservlist **,
86 struct netbuf *);
87 int __netdir_getbyaddr_nosrv(struct netconfig *, struct nd_hostservlist **,
88 struct netbuf *);
89 int netdir_mergeaddr(struct netconfig *, char **muaddr, char *uaddr,
90 char *ruaddr);
91 void netdir_free(void *, int);
92 struct netbuf *uaddr2taddr(struct netconfig *, char *);
93 char *taddr2uaddr(struct netconfig *, struct netbuf *);
94 void netdir_perror(char *);
95 char *netdir_sperror();
96 struct nd_addrlist *_netdir_getbyname(struct netconfig *, struct nd_hostserv *);
97 struct nd_hostservlist *_netdir_getbyaddr(struct netconfig *, struct netbuf *);
98 struct netbuf *_uaddr2taddr(struct netconfig *, char *);
99 char *_taddr2uaddr(struct netconfig *, struct netbuf *);
100 char *_netdir_mergeaddr(struct netconfig *, char *uaddr, char *ruaddr);
101
102 /*
103 * These are all objects that can be freed by netdir_free
104 */
105 #define ND_HOSTSERV 0
106 #define ND_HOSTSERVLIST 1
107 #define ND_ADDR 2
108 #define ND_ADDRLIST 3
109
110 /*
111 * These are the various errors that can be encountered while attempting
112 * to translate names to addresses. Note that none of them (except maybe
113 * no memory) are truely fatal unless the ntoa deamon is on its last attempt
114 * to translate the name. First four errors are to failitate return values
115 * from DNS, that are used by mail and others.
116 *
117 * Negative errors terminate the search resolution process, positive errors
118 * are treated as warnings.
119 */
120
121 #define ND_TRY_AGAIN -5 /* Non-Authoritive Host not found, or */
122 /* SERVERFAIL */
123 #define ND_NO_RECOVERY -4 /* Non recoverable errors, FORMERR, REFUSED, */
124 /* NOTIMP */
125 #define ND_NO_DATA -3 /* Valid name, no data record of requested */
126 /* type */
127 #define ND_NO_ADDRESS ND_NO_DATA /* no address, look for MX record */
128 #define ND_BADARG -2 /* Bad arguments passed */
129 #define ND_NOMEM -1 /* No virtual memory left */
130 #define ND_OK 0 /* Translation successful */
131 #define ND_NOHOST 1 /* Hostname was not resolvable */
132 #define ND_NOSERV 2 /* Service was unknown */
133 #define ND_NOSYM 3 /* Couldn't resolve symbol */
134 #define ND_OPEN 4 /* File couldn't be opened */
135 #define ND_ACCESS 5 /* File is not accessable */
136 #define ND_UKNWN 6 /* Unknown object to be freed */
137 #define ND_NOCTRL 7 /* Unknown option passed to netdir_options */
138 #define ND_FAILCTRL 8 /* Option failed in netdir_options */
139 #define ND_SYSTEM 9 /* Other System error */
140
141 /*
142 * The following netdir_options commands can be given to the fd. These is
143 * a way of providing for any transport specific action which the caller
144 * may want to initiate on his transport. It is up to the trasport provider
145 * to support the netdir_options he wants to support.
146 */
147
148 #define ND_SET_BROADCAST 1 /* Do t_optmgmt to support broadcast */
149 #define ND_SET_RESERVEDPORT 2 /* bind it to reserve address */
150 #define ND_CHECK_RESERVEDPORT 3 /* check if address is reserved */
151 #define ND_MERGEADDR 4 /* Merge universal address */
152
153 /*
154 * The following special case host names are used to give the underlying
155 * transport provides a clue as to the intent of the request.
156 */
157
158 #define HOST_SELF "\\1"
159 #define HOST_ANY "\\2"
160 #define HOST_BROADCAST "\\3"
161 #define HOST_SELF_BIND HOST_SELF
162 #define HOST_SELF_CONNECT "\\4"
163
164 #ifdef __cplusplus
165 }
166 #endif
167
168 #endif /* _NETDIR_H */