summaryrefslogtreecommitdiff
path: root/include/netdb.h
blob: 5db0adee0dab5e3c5674d70a7c192fda230eee9a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
/*	$OpenBSD: netdb.h,v 1.13 2001/06/05 02:38:05 deraadt Exp $	*/

/*
 * ++Copyright++ 1980, 1983, 1988, 1993
 * -
 * Copyright (c) 1980, 1983, 1988, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * -
 * Portions Copyright (c) 1993 by Digital Equipment Corporation.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies, and that
 * the name of Digital Equipment Corporation not be used in advertising or
 * publicity pertaining to distribution of the document or software without
 * specific, written prior permission.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
 * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
 * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
 * SOFTWARE.
 * -
 * --Copyright--
 */

/*
 * Copyright (c) 1995, 1996, 1997, 1998, 1999 Craig Metz. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the author nor the names of any contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

/*
 *      @(#)netdb.h	8.1 (Berkeley) 6/2/93
 *	$From: netdb.h,v 8.7 1996/05/09 05:59:09 vixie Exp $
 */

#ifndef _NETDB_H_
#define _NETDB_H_

#include <sys/param.h>
#if (!defined(BSD)) || (BSD < 199306)
# include <sys/bitypes.h>
#endif
#include <sys/cdefs.h>

#define	_PATH_HEQUIV	"/etc/hosts.equiv"
#define	_PATH_HOSTS	"/etc/hosts"
#define	_PATH_NETWORKS	"/etc/networks"
#define	_PATH_PROTOCOLS	"/etc/protocols"
#define	_PATH_SERVICES	"/etc/services"

extern int h_errno;

/*
 * Structures returned by network data base library.  All addresses are
 * supplied in host order, and returned in network order (suitable for
 * use in system calls).
 */
struct	hostent {
	char	*h_name;	/* official name of host */
	char	**h_aliases;	/* alias list */
	int	h_addrtype;	/* host address type */
	int	h_length;	/* length of address */
	char	**h_addr_list;	/* list of addresses from name server */
#define	h_addr	h_addr_list[0]	/* address, for backward compatiblity */
};

/*
 * Assumption here is that a network number
 * fits in an in_addr_t -- probably a poor one.
 */
struct	netent {
	char		*n_name;	/* official name of net */
	char		**n_aliases;	/* alias list */
	int		n_addrtype;	/* net address type */
	in_addr_t	n_net;		/* network # */
};

struct	servent {
	char	*s_name;	/* official service name */
	char	**s_aliases;	/* alias list */
	int	s_port;		/* port # */
	char	*s_proto;	/* protocol to use */
};

struct	protoent {
	char	*p_name;	/* official protocol name */
	char	**p_aliases;	/* alias list */
	int	p_proto;	/* protocol # */
};

/*
 * Error return codes from gethostbyname() and gethostbyaddr()
 * (left in extern int h_errno).
 */

#define	NETDB_INTERNAL	-1	/* see errno */
#define	NETDB_SUCCESS	0	/* no problem */
#define	HOST_NOT_FOUND	1 /* Authoritative Answer Host not found */
#define	TRY_AGAIN	2 /* Non-Authoritive Host not found, or SERVERFAIL */
#define	NO_RECOVERY	3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */
#define	NO_DATA		4 /* Valid name, no data record of requested type */
#define	NO_ADDRESS	NO_DATA		/* no address, look for MX record */

/* Values for getaddrinfo() and getnameinfo() */
#define AI_PASSIVE	1	/* socket address is intended for bind() */
#define AI_CANONNAME	2	/* request for canonical name */
#define AI_NUMERICHOST	4	/* don't ever try nameservice */
#define AI_EXT		8	/* enable non-portable extensions */
/* valid flags for addrinfo */
#define AI_MASK		(AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST)

#define NI_NUMERICHOST	1	/* return the host address, not the name */
#define NI_NUMERICSERV	2	/* return the service address, not the name */
#define NI_NOFQDN	4	/* return a short name if in the local domain */
#define NI_NAMEREQD	8	/* fail if either host or service name is unknown */
#define NI_DGRAM	16	/* look up datagram service instead of stream */
#define NI_WITHSCOPEID	32	/* KAME hack: attach scopeid to host portion */

#define NI_MAXHOST	MAXHOSTNAMELEN	/* max host name returned by getnameinfo */
#define NI_MAXSERV	32	/* max serv. name length returned by getnameinfo */

/*
 * Scope delimit character (KAME hack)
 */
#define SCOPE_DELIMITER '%'

#define EAI_BADFLAGS	-1	/* invalid value for ai_flags */
#define EAI_NONAME	-2	/* name or service is not known */
#define EAI_AGAIN	-3	/* temporary failure in name resolution */
#define EAI_FAIL	-4	/* non-recoverable failure in name resolution */
#define EAI_NODATA	-5	/* no address associated with name */
#define EAI_FAMILY	-6	/* ai_family not supported */
#define EAI_SOCKTYPE	-7	/* ai_socktype not supported */
#define EAI_SERVICE	-8	/* service not supported for ai_socktype */
#define EAI_ADDRFAMILY	-9	/* address family for name not supported */
#define EAI_MEMORY	-10	/* memory allocation failure */
#define EAI_SYSTEM	-11	/* system error (code indicated in errno) */
#define EAI_BADHINTS	-12	/* invalid value for hints */
#define EAI_PROTOCOL	-13	/* resolved protocol is unknown */

struct addrinfo {
	int ai_flags;		/* input flags */
	int ai_family;		/* protocol family for socket */
	int ai_socktype;	/* socket type */
	int ai_protocol;	/* protocol for socket */
	socklen_t ai_addrlen;	/* length of socket-address */
	struct sockaddr *ai_addr; /* socket-address for socket */
	char *ai_canonname;	/* canonical name for service location (iff req) */
	struct addrinfo *ai_next; /* pointer to next in list */
};

__BEGIN_DECLS
void		endhostent __P((void));
void		endnetent __P((void));
void		endprotoent __P((void));
void		endservent __P((void));
struct hostent	*gethostbyaddr __P((const char *, int, int));
struct hostent	*gethostbyname __P((const char *));
struct hostent	*gethostbyname2 __P((const char *, int));
struct hostent	*gethostent __P((void));
struct netent	*getnetbyaddr __P((in_addr_t, int));
struct netent	*getnetbyname __P((const char *));
struct netent	*getnetent __P((void));
struct protoent	*getprotobyname __P((const char *));
struct protoent	*getprotobynumber __P((int));
struct protoent	*getprotoent __P((void));
struct servent	*getservbyname __P((const char *, const char *));
struct servent	*getservbyport __P((int, const char *));
struct servent	*getservent __P((void));
void		herror __P((const char *));
const char	*hstrerror __P((int));
void		sethostent __P((int));
/* void		sethostfile __P((const char *)); */
void		setnetent __P((int));
void		setprotoent __P((int));
void		setservent __P((int));

int		getaddrinfo __P((const char *, const char *,
		    const struct addrinfo *, struct addrinfo **));
void		freeaddrinfo __P((struct addrinfo *));
int		getnameinfo __P((const struct sockaddr *, socklen_t,
		    char *, size_t, char *, size_t,
		    int));
char		*gai_strerror __P((int));
int		net_addrcmp __P((struct sockaddr *, struct sockaddr *));
__END_DECLS

/* This is nec'y to make this include file properly replace the sun version. */
#ifdef sun
#ifdef __GNU_LIBRARY__
#include <rpc/netdb.h>
#else
struct rpcent {
	char	*r_name;	/* name of server for this rpc program */
	char	**r_aliases;	/* alias list */
	int	r_number;	/* rpc program number */
};
struct rpcent	*getrpcbyname(), *getrpcbynumber(), *getrpcent();
#endif /* __GNU_LIBRARY__ */
#endif /* sun */

#endif /* !_NETDB_H_ */