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NetBSD/include/netdb.h
kleink a24f74d0fd Turn the flags argument to getnameinfo(3) back into an int (from unsigned 
int); this is consistent with RFC2553, the current draft-ietf-ipngwg-
rfc2553bis-05 and the majority of deployed implementations.

Also, there is an effort under way to have this changed back to int in
XBD6/XSH6, XNS, and POSIX-2001 TC1.
2002-05-22 09:42:37 +00:00

330 lines
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/* $NetBSD: netdb.h,v 1.26 2002/05/22 09:42:37 kleink Exp $ */
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
* 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 project 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 PROJECT 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 PROJECT 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.
*/
/*-
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 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.
*
* @(#)netdb.h 8.1 (Berkeley) 6/2/93
* Id: netdb.h,v 4.9.1.2 1993/05/17 09:59:01 vixie Exp
* -
* 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--
*/
#ifndef _NETDB_H_
#define _NETDB_H_
#include <machine/ansi.h>
#include <sys/ansi.h>
#include <sys/cdefs.h>
#include <inttypes.h>
/*
* Data types
*/
#ifndef socklen_t
typedef __socklen_t socklen_t;
#define socklen_t __socklen_t
#endif
#ifdef _BSD_SIZE_T_
typedef _BSD_SIZE_T_ size_t;
#undef _BSD_SIZE_T_
#endif
#if !defined(_XOPEN_SOURCE)
#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"
#endif
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 compatiblity */
};
/*
* 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 # XXX */
};
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 # */
};
/*
* Note: ai_addrlen used to be a size_t, per RFC 2553.
* In XNS5.2, and subsequently in POSIX-2001 and
* draft-ietf-ipngwg-rfc2553bis-02.txt it was changed to a socklen_t.
* To accomodate for this while preserving binary compatibility with the
* old interface, we prepend or append 32 bits of padding, depending on
* the (LP64) architecture's endianness.
*
* This should be deleted the next time the libc major number is
* incremented.
*/
#if !defined(_XOPEN_SOURCE) || (_XOPEN_SOURCE - 0) >= 520
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 */
#if defined(__sparc64__)
int __ai_pad0;
#endif
socklen_t ai_addrlen; /* length of ai_addr */
#if defined(__alpha__) || (defined(__i386__) && defined(_LP64))
int __ai_pad0;
#endif
char *ai_canonname; /* canonical name for hostname */
struct sockaddr *ai_addr; /* binary address */
struct addrinfo *ai_next; /* next structure in linked list */
};
#endif
/*
* Error return codes from gethostbyname() and gethostbyaddr()
* (left in extern int h_errno).
*/
#if !defined(_XOPEN_SOURCE)
#define NETDB_INTERNAL -1 /* see errno */
#define NETDB_SUCCESS 0 /* no problem */
#endif
#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 */
#if !defined(_XOPEN_SOURCE)
#define NO_ADDRESS NO_DATA /* no address, look for MX record */
#endif
/*
* Error return codes from getaddrinfo()
*/
#if !defined(_XOPEN_SOURCE) || (_XOPEN_SOURCE - 0) >= 520
#define EAI_ADDRFAMILY 1 /* address family for hostname not supported */
#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 */
#define EAI_NODATA 7 /* no address associated with hostname */
#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
#define EAI_PROTOCOL 13
#define EAI_MAX 14
#endif /* !_XOPEN_SOURCE || (_XOPEN_SOURCE - 0) >= 520 */
/*
* Flag values for getaddrinfo()
*/
#if !defined(_XOPEN_SOURCE) || (_XOPEN_SOURCE - 0) >= 520
#define AI_PASSIVE 0x00000001 /* get address to use bind() */
#define AI_CANONNAME 0x00000002 /* fill ai_canonname */
#define AI_NUMERICHOST 0x00000004 /* prevent name resolution */
/* valid flags for addrinfo */
#define AI_MASK (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST)
#endif
#if !defined(_XOPEN_SOURCE) || (_XOPEN_SOURCE - 0) >= 520
#define AI_ALL 0x00000100 /* IPv6 and IPv4-mapped (with AI_V4MAPPED) */
#endif
#if !defined(_XOPEN_SOURCE)
#define AI_V4MAPPED_CFG 0x00000200 /* accept IPv4-mapped if kernel supports */
#endif
#if !defined(_XOPEN_SOURCE) || (_XOPEN_SOURCE - 0) >= 520
#define AI_ADDRCONFIG 0x00000400 /* only if any address is assigned */
#define AI_V4MAPPED 0x00000800 /* accept IPv4-mapped IPv6 address */
#endif
#if !defined(_XOPEN_SOURCE)
/* special recommended flags for getipnodebyname */
#define AI_DEFAULT (AI_V4MAPPED_CFG | AI_ADDRCONFIG)
#endif
#if !defined(_XOPEN_SOURCE) || (_XOPEN_SOURCE - 0) >= 520
/*
* Constants for getnameinfo()
*/
#if !defined(_XOPEN_SOURCE)
#define NI_MAXHOST 1025
#define NI_MAXSERV 32
#endif
/*
* 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 !defined(_XOPEN_SOURCE)
#define NI_WITHSCOPEID 0x00000020 /*KAME extension*/
#endif
/*
* Scope delimit character
*/
#if !defined(_XOPEN_SOURCE)
#define SCOPE_DELIMITER '%' /*KAME extension*/
#endif
#endif /* !_XOPEN_SOURCE || (_XOPEN_SOURCE - 0) >= 520 */
__BEGIN_DECLS
void endhostent __P((void));
void endnetent __P((void));
void endprotoent __P((void));
void endservent __P((void));
#if !defined(_XOPEN_SOURCE) || (_XOPEN_SOURCE - 0) >= 500
void freehostent __P((struct hostent *));
#endif
struct hostent *gethostbyaddr __P((const char *, socklen_t, int));
struct hostent *gethostbyname __P((const char *));
#if !defined(_XOPEN_SOURCE)
struct hostent *gethostbyname2 __P((const char *, int));
#endif
struct hostent *gethostent __P((void));
#if !defined(_XOPEN_SOURCE) || (_XOPEN_SOURCE - 0) >= 520
#if 0 /* we do not ship these */
struct hostent *getipnodebyaddr __P((const void *, size_t, int, int *));
struct hostent *getipnodebyname __P((const char *, int, int, int *));
#endif
#endif
struct netent *getnetbyaddr __P((unsigned long, int));
struct netent *getnetbyname __P((const char *));
struct netent *getnetent __P((void));
struct protoent *getprotobyname __P((const char *));
struct protoent *getprotobynumber __P((int));
struct protoent *getprotoent __P((void));
struct servent *getservbyname __P((const char *, const char *));
struct servent *getservbyport __P((int, const char *));
struct servent *getservent __P((void));
#if !defined(_XOPEN_SOURCE)
void herror __P((const char *));
const char *hstrerror __P((int));
#endif
void sethostent __P((int));
#if !defined(_XOPEN_SOURCE)
/* void sethostfile __P((const char *)); */
#endif
void setnetent __P((int));
void setprotoent __P((int));
#if !defined(_XOPEN_SOURCE) || (_XOPEN_SOURCE - 0) >= 520
int getaddrinfo __P((const char *, const char *,
const struct addrinfo *, struct addrinfo **));
int getnameinfo __P((const struct sockaddr *, socklen_t, char *,
socklen_t, char *, socklen_t, int));
void freeaddrinfo __P((struct addrinfo *));
char *gai_strerror __P((int));
#endif
void setservent __P((int));
__END_DECLS
#endif /* !_NETDB_H_ */
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