OpenBSD-4.6/include/netdb.h
/* $OpenBSD: netdb.h,v 1.27 2009/06/02 16:47:50 jasper 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. 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>
#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 compatibility */
};
/*
* 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 */
/* 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 hostname lookup */
#define AI_EXT 8 /* enable non-portable extensions */
#define AI_NUMERICSERV 16 /* don't ever try servname lookup */
/* valid flags for addrinfo */
#define AI_MASK \
(AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_NUMERICSERV)
#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_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 */
#define EAI_OVERFLOW -14 /* argument buffer overflow */
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 */
};
/*
* Flags for getrrsetbyname()
*/
#define RRSET_VALIDATED 1
/*
* Return codes for getrrsetbyname()
*/
#define ERRSET_SUCCESS 0
#define ERRSET_NOMEMORY 1
#define ERRSET_FAIL 2
#define ERRSET_INVAL 3
#define ERRSET_NONAME 4
#define ERRSET_NODATA 5
/*
* Structures used by getrrsetbyname() and freerrset()
*/
struct rdatainfo {
unsigned int rdi_length; /* length of data */
unsigned char *rdi_data; /* record data */
};
struct rrsetinfo {
unsigned int rri_flags; /* RRSET_VALIDATED ... */
unsigned int rri_rdclass; /* class number */
unsigned int rri_rdtype; /* RR type number */
unsigned int rri_ttl; /* time to live */
unsigned int rri_nrdatas; /* size of rdatas array */
unsigned int rri_nsigs; /* size of sigs array */
char *rri_name; /* canonical name */
struct rdatainfo *rri_rdatas; /* individual records */
struct rdatainfo *rri_sigs; /* individual signatures */
};
#if __BSD_VISIBLE
struct servent_data {
void *fp;
char **aliases;
int maxaliases;
int stayopen;
char *line;
};
struct protoent_data {
void *fp;
char **aliases;
int maxaliases;
int stayopen;
char *line;
};
#endif
__BEGIN_DECLS
void endhostent(void);
void endnetent(void);
void endprotoent(void);
#if __BSD_VISIBLE
void endprotoent_r(struct protoent_data *);
#endif
void endservent(void);
#if __BSD_VISIBLE
void endservent_r(struct servent_data *);
#endif
struct hostent *gethostbyaddr(const void *, socklen_t, int);
struct hostent *gethostbyname(const char *);
struct hostent *gethostbyname2(const char *, int);
struct hostent *gethostent(void);
struct netent *getnetbyaddr(in_addr_t, int);
struct netent *getnetbyname(const char *);
struct netent *getnetent(void);
struct protoent *getprotobyname(const char *);
struct protoent *getprotobynumber(int);
struct protoent *getprotoent(void);
#if __BSD_VISIBLE
int getprotobyname_r(const char *, struct protoent *,
struct protoent_data *);
int getprotobynumber_r(int, struct protoent *,
struct protoent_data *);
int getprotoent_r(struct protoent *, struct protoent_data *);
#endif
struct servent *getservbyname(const char *, const char *);
struct servent *getservbyport(int, const char *);
struct servent *getservent(void);
#if __BSD_VISIBLE
int getservbyname_r(const char *, const char *, struct servent *,
struct servent_data *);
int getservbyport_r(int, const char *, struct servent *,
struct servent_data *);
int getservent_r(struct servent *, struct servent_data *);
#endif
void herror(const char *);
const char *hstrerror(int);
void sethostent(int);
/* void sethostfile(const char *); */
void setnetent(int);
void setprotoent(int);
#if __BSD_VISIBLE
void setprotoent_r(int, struct protoent_data *);
#endif
void setservent(int);
#if __BSD_VISIBLE
void setservent_r(int, struct servent_data *);
#endif
int getaddrinfo(const char *, const char *,
const struct addrinfo *, struct addrinfo **);
void freeaddrinfo(struct addrinfo *);
int getnameinfo(const struct sockaddr *, socklen_t,
char *, size_t, char *, size_t, int);
const char *gai_strerror(int);
int net_addrcmp(struct sockaddr *, struct sockaddr *);
int getrrsetbyname(const char *, unsigned int, unsigned int, unsigned int, struct rrsetinfo **);
void freerrset(struct rrsetinfo *);
__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_ */