summaryrefslogtreecommitdiffstats
path: root/include/netdb.h
blob: 9ed6e61471e5b22cdf5339726cc07339998487b8 (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
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
/*-
 * 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. 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--
 */

/*
 *      @(#)netdb.h	8.1 (Berkeley) 6/2/93
 *      From: Id: netdb.h,v 8.9 1996/11/19 08:39:29 vixie Exp $
 * $FreeBSD$
 */

#ifndef _NETDB_H_
#define _NETDB_H_

#include <sys/cdefs.h>
#include <sys/_types.h>

#ifndef _SIZE_T_DECLARED
typedef	__size_t	size_t;
#define	_SIZE_T_DECLARED
#endif

#ifndef _SOCKLEN_T_DECLARED
typedef	__socklen_t	socklen_t;
#define	_SOCKLEN_T_DECLARED
#endif

#ifndef _UINT32_T_DECLARED
typedef	__uint32_t	uint32_t;
#define	_UINT32_T_DECLARED
#endif

#ifndef _PATH_HEQUIV
# define	_PATH_HEQUIV	"/etc/hosts.equiv"
#endif
#define	_PATH_HOSTS	"/etc/hosts"
#define	_PATH_NETWORKS	"/etc/networks"
#define	_PATH_PROTOCOLS	"/etc/protocols"
#define	_PATH_SERVICES	"/etc/services"
#define	_PATH_SERVICES_DB "/var/db/services.db"

#define	h_errno (*__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 compatibility */
};

struct netent {
	char		*n_name;	/* official name of net */
	char		**n_aliases;	/* alias list */
	int		n_addrtype;	/* net address type */
	uint32_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 # */
};

struct addrinfo {
	int	ai_flags;	/* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */
	int	ai_family;	/* PF_xxx */
	int	ai_socktype;	/* SOCK_xxx */
	int	ai_protocol;	/* 0 or IPPROTO_xxx for IPv4 and IPv6 */
	socklen_t ai_addrlen;	/* length of ai_addr */
	char	*ai_canonname;	/* canonical name for hostname */
	struct	sockaddr *ai_addr;	/* binary address */
	struct	addrinfo *ai_next;	/* next structure in linked list */
};

/*
 * Error return codes from gethostbyname() and gethostbyaddr()
 * (left in 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-Authoritative 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 */

/*
 * Error return codes from getaddrinfo()
 */
#if 0
/* obsoleted */
#define	EAI_ADDRFAMILY	 1	/* address family for hostname not supported */
#endif
#define	EAI_AGAIN	 2	/* temporary failure in name resolution */
#define	EAI_BADFLAGS	 3	/* invalid value for ai_flags */
#define	EAI_FAIL	 4	/* non-recoverable failure in name resolution */
#define	EAI_FAMILY	 5	/* ai_family not supported */
#define	EAI_MEMORY	 6	/* memory allocation failure */
#if 0
/* obsoleted */
#define	EAI_NODATA	 7	/* no address associated with hostname */
#endif
#define	EAI_NONAME	 8	/* hostname nor servname provided, or not known */
#define	EAI_SERVICE	 9	/* servname not supported for ai_socktype */
#define	EAI_SOCKTYPE	10	/* ai_socktype not supported */
#define	EAI_SYSTEM	11	/* system error returned in errno */
#define	EAI_BADHINTS	12	/* invalid value for hints */
#define	EAI_PROTOCOL	13	/* resolved protocol is unknown */
#define	EAI_OVERFLOW	14	/* argument buffer overflow */
#define	EAI_MAX		15

/*
 * Flag values for getaddrinfo()
 */
#define	AI_PASSIVE	0x00000001 /* get address to use bind() */
#define	AI_CANONNAME	0x00000002 /* fill ai_canonname */
#define	AI_NUMERICHOST	0x00000004 /* prevent host name resolution */
#define	AI_NUMERICSERV	0x00000008 /* prevent service name resolution */
/* valid flags for addrinfo (not a standard def, apps should not use it) */
#define AI_MASK \
    (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_NUMERICSERV | \
    AI_ADDRCONFIG)

#define	AI_ALL		0x00000100 /* IPv6 and IPv4-mapped (with AI_V4MAPPED) */
#define	AI_V4MAPPED_CFG	0x00000200 /* accept IPv4-mapped if kernel supports */
#define	AI_ADDRCONFIG	0x00000400 /* only if any address is assigned */
#define	AI_V4MAPPED	0x00000800 /* accept IPv4-mapped IPv6 address */
/* special recommended flags for getipnodebyname */
#define	AI_DEFAULT	(AI_V4MAPPED_CFG | AI_ADDRCONFIG)

/*
 * Constants for getnameinfo()
 */
#define	NI_MAXHOST	1025
#define	NI_MAXSERV	32

/*
 * Flag values for getnameinfo()
 */
#define	NI_NOFQDN	0x00000001
#define	NI_NUMERICHOST	0x00000002
#define	NI_NAMEREQD	0x00000004
#define	NI_NUMERICSERV	0x00000008
#define	NI_DGRAM	0x00000010
#if 0 /* obsolete */
#define NI_WITHSCOPEID	0x00000020
#endif

/*
 * Scope delimit character
 */
#define	SCOPE_DELIMITER	'%'

__BEGIN_DECLS
void		endhostent(void);
void		endnetent(void);
void		endprotoent(void);
void		endservent(void);
#if __BSD_VISIBLE || (__POSIX_VISIBLE && __POSIX_VISIBLE <= 200112)
struct hostent	*gethostbyaddr(const void *, socklen_t, int);
struct hostent	*gethostbyname(const char *);
#endif
struct hostent	*gethostent(void);
struct netent	*getnetbyaddr(uint32_t, int);
struct netent	*getnetbyname(const char *);
struct netent	*getnetent(void);
struct protoent	*getprotobyname(const char *);
struct protoent	*getprotobynumber(int);
struct protoent	*getprotoent(void);
struct servent	*getservbyname(const char *, const char *);
struct servent	*getservbyport(int, const char *);
struct servent	*getservent(void);
void		sethostent(int);
/* void		sethostfile(const char *); */
void		setnetent(int);
void		setprotoent(int);
int		getaddrinfo(const char *, const char *,
			    const struct addrinfo *, struct addrinfo **);
int		getnameinfo(const struct sockaddr *, socklen_t, char *,
			    size_t, char *, size_t, int);
void		freeaddrinfo(struct addrinfo *);
const char	*gai_strerror(int);
void		setservent(int);

#if __BSD_VISIBLE
void		endnetgrent(void);
void		freehostent(struct hostent *);
int		gethostbyaddr_r(const void *, socklen_t, int, struct hostent *,
    char *, size_t, struct hostent **, int *);
int		gethostbyname_r(const char *, struct hostent *, char *, size_t,
    struct hostent **, int *);
struct hostent	*gethostbyname2(const char *, int);
int		gethostbyname2_r(const char *, int, struct hostent *, char *,
    size_t, struct hostent **, int *);
int		gethostent_r(struct hostent *, char *, size_t,
    struct hostent **, int *);
struct hostent	*getipnodebyaddr(const void *, size_t, int, int *);
struct hostent	*getipnodebyname(const char *, int, int, int *);
int		getnetbyaddr_r(uint32_t, int, struct netent *, char *, size_t,
    struct netent**, int *);
int		getnetbyname_r(const char *, struct netent *, char *, size_t,
    struct netent **, int *);
int		getnetent_r(struct netent *, char *, size_t, struct netent **,
    int *);
int		getnetgrent(char **, char **, char **);
int		getprotobyname_r(const char *, struct protoent *, char *,
    size_t, struct protoent **);
int		getprotobynumber_r(int, struct protoent *, char *, size_t,
    struct protoent **);
int		getprotoent_r(struct protoent *, char *, size_t,
    struct protoent **);
int		getservbyname_r(const char *, const char *, struct servent *,
    char *, size_t, struct servent **);
int		getservbyport_r(int, const char *, struct servent *, char *,
    size_t, struct servent **);
int		getservent_r(struct servent *, char *, size_t,
    struct servent **);
void		herror(const char *);
const char	*hstrerror(int);
int		innetgr(const char *, const char *, const char *, const char *);
void		setnetgrent(const char *);
#endif


/*
 * PRIVATE functions specific to the FreeBSD implementation
 */

/* DO NOT USE THESE, THEY ARE SUBJECT TO CHANGE AND ARE NOT PORTABLE!!! */
int	* __h_errno(void);
__END_DECLS

#endif /* !_NETDB_H_ */
OpenPOWER on IntegriCloud