source: trunk/libs/newlib/src/newlib/libc/sys/linux/include/netdb.h

Last change on this file was 444, checked in by satin@…, 6 years ago

add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
File size: 10.7 KB
Line 
1/*-
2 * Copyright (c) 1980, 1983, 1988, 1993
3 *      The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *      This product includes software developed by the University of
16 *      California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * -
34 * Portions Copyright (c) 1993 by Digital Equipment Corporation.
35 *
36 * Permission to use, copy, modify, and distribute this software for any
37 * purpose with or without fee is hereby granted, provided that the above
38 * copyright notice and this permission notice appear in all copies, and that
39 * the name of Digital Equipment Corporation not be used in advertising or
40 * publicity pertaining to distribution of the document or software without
41 * specific, written prior permission.
42 *
43 * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
44 * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
45 * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
46 * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
47 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
48 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
49 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
50 * SOFTWARE.
51 * -
52 * --Copyright--
53 */
54
55/*
56 *      @(#)netdb.h     8.1 (Berkeley) 6/2/93
57 *      From: Id: netdb.h,v 8.9 1996/11/19 08:39:29 vixie Exp $
58 * $FreeBSD: src/include/netdb.h,v 1.23 2002/03/23 17:24:53 imp Exp $
59 */
60
61#ifndef _NETDB_H_
62#define _NETDB_H_
63
64#include <sys/cdefs.h>
65#include <sys/types.h>
66#include <machine/ansi.h>
67#include <stdio.h>
68
69#ifndef __socklen_t_defined
70typedef unsigned int socklen_t;
71#define __socklen_t_defined 1
72#endif
73
74#ifdef  _BSD_SOCKLEN_T_
75typedef _BSD_SOCKLEN_T_ socklen_t;
76#undef  _BSD_SOCKLEN_T_
77#endif
78
79#ifndef _PATH_HEQUIV
80# define        _PATH_HEQUIV    "/etc/hosts.equiv"
81#endif
82#define _PATH_HOSTS     "/etc/hosts"
83#define _PATH_NETWORKS  "/etc/networks"
84#define _PATH_PROTOCOLS "/etc/protocols"
85#define _PATH_SERVICES  "/etc/services"
86#define _PATH_NSSWITCH_CONF  "/etc/nsswitch.conf"
87
88
89extern int *__h_errno_location(void);
90
91#define h_errno (*(__h_errno_location()))
92
93#define MAXALIASES      35
94  /* For now, only support one return address. */
95#define MAXADDRS         2
96/*
97 * Structures returned by network data base library.  All addresses are
98 * supplied in host order, and returned in network order (suitable for
99 * use in system calls).
100 */
101struct hostent {
102  char  *h_name;        /* official name of host */
103  char  **h_aliases;    /* alias list */
104  int   h_addrtype;     /* host address type */
105  int   h_length;       /* length of address */
106  char  **h_addr_list;  /* list of addresses from name server */
107  char *h_addr;         /* address, for backward compatibility */
108  /* private data, for re-entrancy */
109  char *__host_addrs[MAXADDRS];
110  char *__host_aliases[MAXALIASES];
111  unsigned int __host_addr[4];
112};
113
114/*
115 * Assumption here is that a network number
116 * fits in an unsigned long -- probably a poor one.
117 */
118struct netent {
119        char            *n_name;        /* official name of net */
120        char            **n_aliases;    /* alias list */
121        int             n_addrtype;     /* net address type */
122        unsigned long   n_net;          /* network # */
123};
124
125struct servent {
126        char    *s_name;        /* official service name */
127        char    **s_aliases;    /* alias list */
128        int     s_port;         /* port # */
129        char    *s_proto;       /* protocol to use */
130};
131
132struct protoent {
133        char    *p_name;        /* official protocol name */
134        char    **p_aliases;    /* alias list */
135        int     p_proto;        /* protocol # */
136};
137
138struct addrinfo {
139        int     ai_flags;       /* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */
140        int     ai_family;      /* PF_xxx */
141        int     ai_socktype;    /* SOCK_xxx */
142        int     ai_protocol;    /* 0 or IPPROTO_xxx for IPv4 and IPv6 */
143        size_t  ai_addrlen;     /* length of ai_addr */
144        char    *ai_canonname;  /* canonical name for hostname */
145        struct  sockaddr *ai_addr;      /* binary address */
146        struct  addrinfo *ai_next;      /* next structure in linked list */
147};
148
149/*
150 * Error return codes from gethostbyname() and gethostbyaddr()
151 * (left in extern int h_errno).
152 */
153
154#define NETDB_INTERNAL  -1      /* see errno */
155#define NETDB_SUCCESS   0       /* no problem */
156#define HOST_NOT_FOUND  1 /* Authoritative Answer Host not found */
157#define TRY_AGAIN       2 /* Non-Authoritative Host not found, or SERVERFAIL */
158#define NO_RECOVERY     3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */
159#define NO_DATA         4 /* Valid name, no data record of requested type */
160#define NO_ADDRESS      NO_DATA         /* no address, look for MX record */
161
162/*
163 * Error return codes from getaddrinfo()
164 */
165/* Error values for `getaddrinfo' function.  */
166# define EAI_BADFLAGS     -1    /* Invalid value for `ai_flags' field.  */
167# define EAI_NONAME       -2    /* NAME or SERVICE is unknown.  */
168# define EAI_AGAIN        -3    /* Temporary failure in name resolution.  */
169# define EAI_FAIL         -4    /* Non-recoverable failure in name res.  */
170# define EAI_NODATA       -5    /* No address associated with NAME.  */
171# define EAI_FAMILY       -6    /* `ai_family' not supported.  */
172# define EAI_SOCKTYPE     -7    /* `ai_socktype' not supported.  */
173# define EAI_SERVICE      -8    /* SERVICE not supported for `ai_socktype'.  */
174# define EAI_ADDRFAMILY   -9    /* Address family for NAME not supported.  */
175# define EAI_MEMORY       -10   /* Memory allocation failure.  */
176# define EAI_SYSTEM       -11   /* System error returned in `errno'.  */
177# define EAI_OVERFLOW     -12   /* Argument buffer overflow.  */
178# ifdef __USE_GNU
179#  define EAI_INPROGRESS  -100  /* Processing request in progress.  */
180#  define EAI_CANCELED    -101  /* Request canceled.  */
181#  define EAI_NOTCANCELED -102  /* Request not canceled.  */
182#  define EAI_ALLDONE     -103  /* All requests done.  */
183#  define EAI_INTR        -104  /* Interrupted by a signal.  */
184#  define EAI_IDN_ENCODE  -105  /* IDN encoding failed.  */
185# endif
186
187/*
188 * Flag values for getaddrinfo()
189 */
190#define AI_PASSIVE      0x00000001 /* get address to use bind() */
191#define AI_CANONNAME    0x00000002 /* fill ai_canonname */
192#define AI_NUMERICHOST  0x00000004 /* prevent name resolution */
193#define AI_NUMERICSERV  0x00000008 /* don't use name resolution. */
194/* valid flags for addrinfo */
195#define AI_MASK \
196    (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_ADDRCONFIG)
197
198#define AI_ALL          0x00000100 /* IPv6 and IPv4-mapped (with AI_V4MAPPED) */
199#define AI_V4MAPPED_CFG 0x00000200 /* accept IPv4-mapped if kernel supports */
200#define AI_ADDRCONFIG   0x00000400 /* only if any address is assigned */
201#define AI_V4MAPPED     0x00000800 /* accept IPv4-mapped IPv6 address */
202/* special recommended flags for getipnodebyname */
203#define AI_DEFAULT      (AI_V4MAPPED_CFG | AI_ADDRCONFIG)
204
205/*
206 * Constants for getnameinfo()
207 */
208#define NI_MAXHOST      1025
209#define NI_MAXSERV      32
210
211/*
212 * Flag values for getnameinfo()
213 */
214#define NI_NOFQDN       0x00000001
215#define NI_NUMERICHOST  0x00000002
216#define NI_NAMEREQD     0x00000004
217#define NI_NUMERICSERV  0x00000008
218#define NI_DGRAM        0x00000010
219#define NI_WITHSCOPEID  0x00000020
220
221/*
222 * Scope delimit character
223 */
224#define SCOPE_DELIMITER '%'
225
226__BEGIN_DECLS
227void            endhostent(void);
228void            endhostent_r(FILE **, int *);
229void            endnetent(void);
230void            endnetgrent(void);
231void            endprotoent(void);
232void            endservent(void);
233void            freehostent(struct hostent *);
234struct hostent  *gethostbyaddr(const void *, socklen_t, int);
235struct hostent  *gethostbyname(const char *);
236struct hostent  *gethostbyname2(const char *, int);
237struct hostent  *gethostent(void);
238int             gethostent_r(struct hostent *, char *, int, int *, FILE **);
239struct hostent  *getipnodebyaddr(const void *, size_t, int, int *);
240struct hostent  *getipnodebyname(const char *, int, int, int *);
241struct netent   *getnetbyaddr(uint32_t, int);
242struct netent   *getnetbyname(const char *);
243struct netent   *getnetent(void);
244int             getnetgrent(char **, char **, char **);
245struct protoent *getprotobyname(const char *);
246struct protoent *getprotobynumber(int);
247struct protoent *getprotoent(void);
248struct servent  *getservbyname(const char *, const char *);
249struct servent  *getservbyport(int, const char *);
250struct servent  *getservent(void);
251void            herror(const char *);
252__const char    *hstrerror(int);
253int             innetgr(const char *, const char *, const char *, const char *);
254void            sethostent(int);
255void            sethostent_r(int, FILE **, int *);
256/* void         sethostfile(const char *); */
257void            setnetent(int);
258void            setprotoent(int);
259int             getaddrinfo(const char *__restrict, const char *__restrict,
260                            const struct addrinfo *__restrict,
261                            struct addrinfo **__restrict);
262int             getnameinfo(const struct sockaddr *__restrict, socklen_t,
263                            char *__restrict, socklen_t, char *__restrict,
264                            socklen_t, unsigned int);
265void            freeaddrinfo(struct addrinfo *);
266char            *gai_strerror(int);
267int             setnetgrent(const char *);
268void            setservent(int);
269
270/*
271 * PRIVATE functions specific to the FreeBSD implementation
272 */
273
274/* DO NOT USE THESE, THEY ARE SUBJECT TO CHANGE AND ARE NOT PORTABLE!!! */
275void    _sethosthtent(int);
276void    _sethosthtent_r(int, FILE **, int *);
277void    _endhosthtent(void);
278void    _endhosthtent_r(FILE **, int *);
279void    _sethostdnsent(int);
280void    _endhostdnsent(void);
281void    _setnethtent(int);
282void    _endnethtent(void);
283void    _setnetdnsent(int);
284void    _endnetdnsent(void);
285struct hostent * _gethostbynisname(const char *, int);
286struct hostent * _gethostbynisaddr(const char *, int, int);
287void _map_v4v6_address(const char *, char *);
288void _map_v4v6_hostent(struct hostent *, char **, int *);
289__END_DECLS
290
291#endif /* !_NETDB_H_ */
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