|
|
/* $OpenBSD: netdb.h,v 1.32 2014/04/28 21:38:59 sperreault 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/cdefs.h>
|
|
|
|
|
|
#if __BSD_VISIBLE
|
|
|
#include <sys/param.h>
|
|
|
#endif
|
|
|
#include <netinet/in.h>
|
|
|
|
|
|
#ifndef _SOCKLEN_T_DEFINED_
|
|
|
#define _SOCKLEN_T_DEFINED_
|
|
|
typedef __socklen_t socklen_t; /* length type for network syscalls */
|
|
|
#endif
|
|
|
|
|
|
#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"
|
|
|
|
|
|
/*
|
|
|
* 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 # */
|
|
|
};
|
|
|
|
|
|
#if __BSD_VISIBLE || __POSIX_VISIBLE < 200809
|
|
|
extern int h_errno;
|
|
|
|
|
|
/*
|
|
|
* 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 */
|
|
|
#endif /* __BSD_VISIBLE || __POSIX_VISIBLE < 200809 */
|
|
|
|
|
|
/* 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 */
|
|
|
#define AI_FQDN 32 /* return the FQDN that was resolved */
|
|
|
#define AI_ADDRCONFIG 64 /* return configured address families only */
|
|
|
/* valid flags for addrinfo */
|
|
|
#define AI_MASK \
|
|
|
(AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_NUMERICSERV | AI_FQDN | \
|
|
|
AI_ADDRCONFIG)
|
|
|
|
|
|
#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_NUMERICSCOPE 32 return the scope number, not the name */
|
|
|
|
|
|
#if __BSD_VISIBLE
|
|
|
#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 '%'
|
|
|
#endif
|
|
|
|
|
|
#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 */
|
|
|
};
|
|
|
|
|
|
#if __BSD_VISIBLE
|
|
|
/*
|
|
|
* 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 */
|
|
|
};
|
|
|
|
|
|
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);
|
|
|
void endservent(void);
|
|
|
#if __BSD_VISIBLE || __POSIX_VISIBLE < 200809
|
|
|
struct hostent *gethostbyaddr(const void *, socklen_t, int);
|
|
|
struct hostent *gethostbyname(const char *);
|
|
|
#endif
|
|
|
#if __BSD_VISIBLE
|
|
|
struct hostent *gethostbyname2(const char *, int);
|
|
|
#endif
|
|
|
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);
|
|
|
struct servent *getservbyname(const char *, const char *);
|
|
|
struct servent *getservbyport(int, const char *);
|
|
|
struct servent *getservent(void);
|
|
|
#if __BSD_VISIBLE
|
|
|
void herror(const char *);
|
|
|
const char *hstrerror(int);
|
|
|
#endif
|
|
|
void sethostent(int);
|
|
|
/* void sethostfile(const char *); */
|
|
|
void setnetent(int);
|
|
|
void setprotoent(int);
|
|
|
void setservent(int);
|
|
|
|
|
|
#if __BSD_VISIBLE
|
|
|
void endprotoent_r(struct protoent_data *);
|
|
|
void endservent_r(struct servent_data *);
|
|
|
int getprotobyname_r(const char *, struct protoent *,
|
|
|
struct protoent_data *);
|
|
|
int getprotobynumber_r(int, struct protoent *,
|
|
|
struct protoent_data *);
|
|
|
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 *);
|
|
|
int getprotoent_r(struct protoent *, struct protoent_data *);
|
|
|
void setprotoent_r(int, struct protoent_data *);
|
|
|
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);
|
|
|
|
|
|
#if __BSD_VISIBLE
|
|
|
int getrrsetbyname(const char *, unsigned int, unsigned int, unsigned int, struct rrsetinfo **);
|
|
|
void freerrset(struct rrsetinfo *);
|
|
|
#endif
|
|
|
__END_DECLS
|
|
|
|
|
|
#endif /* !_NETDB_H_ */
|