/*-
* 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.
* 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--
*/
/*
* @(#)netdb.h 8.1 (Berkeley) 6/2/93
* From: Id: netdb.h,v 8.9 1996/11/19 08:39:29 vixie Exp $
* $FreeBSD: src/include/netdb.h,v 1.23 2002/03/23 17:24:53 imp Exp $
*/
#ifndef _NETDB_H_
#define _NETDB_H_
#include <sys/cdefs.h>
#include <sys/types.h>
#include <machine/ansi.h>
#include <stdio.h>
#ifndef __socklen_t_defined
typedef unsigned int socklen_t;
#define __socklen_t_defined 1
#endif
#ifdef _BSD_SOCKLEN_T_
typedef _BSD_SOCKLEN_T_ socklen_t;
#undef _BSD_SOCKLEN_T_
#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_NSSWITCH_CONF "/etc/nsswitch.conf"
__BEGIN_DECLS
extern int *__h_errno_location(void);
__END_DECLS
#define h_errno (*(__h_errno_location()))
#define MAXALIASES 35
/* For now, only support one return address. */
#define MAXADDRS 2
/*
* 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 */
char *h_addr; /* address, for backward compatibility */
/* private data, for re-entrancy */
char *__host_addrs[MAXADDRS];
char *__host_aliases[MAXALIASES];
unsigned int __host_addr[4];
};
/*
* Assumption here is that a network number
* fits in an unsigned long -- probably a poor one.
*/
struct netent {
char *n_name; /* official name of net */
char **n_aliases; /* alias list */
int n_addrtype; /* net address type */
unsigned long 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 */
size_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 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-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()
*/
/* Error values for `getaddrinfo' function. */
# define EAI_BADFLAGS -1 /* Invalid value for `ai_flags' field. */
# define EAI_NONAME -2 /* NAME or SERVICE is unknown. */
# define EAI_AGAIN -3 /* Temporary failure in name resolution. */
# define EAI_FAIL -4 /* Non-recoverable failure in name res. */
# 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 returned in `errno'. */
# define EAI_OVERFLOW -12 /* Argument buffer overflow. */
# ifdef __USE_GNU
# define EAI_INPROGRESS -100 /* Processing request in progress. */
# define EAI_CANCELED -101 /* Request canceled. */
# define EAI_NOTCANCELED -102 /* Request not canceled. */
# define EAI_ALLDONE -103 /* All requests done. */
# define EAI_INTR -104 /* Interrupted by a signal. */
# define EAI_IDN_ENCODE -105 /* IDN encoding failed. */
# endif
/*
* 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 name resolution */
#define AI_NUMERICSERV 0x00000008 /* don't use name resolution. */
/* valid flags for addrinfo */
#define AI_MASK \
(AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | 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
#define NI_WITHSCOPEID 0x00000020
/*
* Scope delimit character
*/
#define SCOPE_DELIMITER '%'
__BEGIN_DECLS
void endhostent(void);
void endhostent_r(FILE **, int *);
void endnetent(void);
void endnetgrent(void);
void endprotoent(void);
void endservent(void);
void freehostent(struct hostent *);
struct hostent *gethostbyaddr(const void *, socklen_t, int);
struct hostent *gethostbyname(const char *);
struct hostent *gethostbyname2(const char *, int);
struct hostent *gethostent(void);
int gethostent_r(struct hostent *, char *, int, int *, FILE **);
struct hostent *getipnodebyaddr(const void *, size_t, int, int *);
struct hostent *getipnodebyname(const char *, int, int, int *);
struct netent *getnetbyaddr(uint32_t, int);
struct netent *getnetbyname(const char *);
struct netent *getnetent(void);
int getnetgrent(char **, char **, char **);
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 herror(const char *);
__const char *hstrerror(int);
int innetgr(const char *, const char *, const char *, const char *);
void sethostent(int);
void sethostent_r(int, FILE **, int *);
/* void sethostfile(const char *); */
void setnetent(int);
void setprotoent(int);
int getaddrinfo(const char *__restrict, const char *__restrict,
const struct addrinfo *__restrict,
struct addrinfo **__restrict);
int getnameinfo(const struct sockaddr *__restrict, socklen_t,
char *__restrict, socklen_t, char *__restrict,
socklen_t, unsigned int);
void freeaddrinfo(struct addrinfo *);
char *gai_strerror(int);
int setnetgrent(const char *);
void setservent(int);
/*
* PRIVATE functions specific to the FreeBSD implementation
*/
/* DO NOT USE THESE, THEY ARE SUBJECT TO CHANGE AND ARE NOT PORTABLE!!! */
void _sethosthtent(int);
void _sethosthtent_r(int, FILE **, int *);
void _endhosthtent(void);
void _endhosthtent_r(FILE **, int *);
void _sethostdnsent(int);
void _endhostdnsent(void);
void _setnethtent(int);
void _endnethtent(void);
void _setnetdnsent(int);
void _endnetdnsent(void);
struct hostent * _gethostbynisname(const char *, int);
struct hostent * _gethostbynisaddr(const char *, int, int);
void _map_v4v6_address(const char *, char *);
void _map_v4v6_hostent(struct hostent *, char **, int *);
__END_DECLS
#endif /* !_NETDB_H_ */