357 lines
13 KiB
C
357 lines
13 KiB
C
/* $NetBSD: netdb.h,v 1.65 2012/03/17 21:57:48 christos Exp $ */
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/*
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* ++Copyright++ 1980, 1983, 1988, 1993
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* -
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* Copyright (c) 1980, 1983, 1988, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* -
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* Portions Copyright (c) 1993 by Digital Equipment Corporation.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies, and that
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* the name of Digital Equipment Corporation not be used in advertising or
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* publicity pertaining to distribution of the document or software without
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* specific, written prior permission.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
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* CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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* -
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* Portions Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by WIDE Project and
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* its contributors.
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* 4. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* -
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* --Copyright--
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*/
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/*
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* @(#)netdb.h 8.1 (Berkeley) 6/2/93
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* Id: netdb.h,v 1.22 2008/02/28 05:34:17 marka Exp
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*/
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#ifndef _NETDB_H_
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#define _NETDB_H_
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#include <machine/ansi.h>
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#include <machine/endian_machdep.h>
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#include <sys/ansi.h>
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#include <sys/cdefs.h>
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#include <sys/featuretest.h>
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#include <inttypes.h>
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/*
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* Data types
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*/
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#ifndef socklen_t
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typedef __socklen_t socklen_t;
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#define socklen_t __socklen_t
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#endif
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#ifdef _BSD_SIZE_T_
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typedef _BSD_SIZE_T_ size_t;
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#undef _BSD_SIZE_T_
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#endif
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#if defined(_NETBSD_SOURCE)
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#ifndef _PATH_HEQUIV
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#define _PATH_HEQUIV "/etc/hosts.equiv"
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#endif
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#ifndef _PATH_HOSTS
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#define _PATH_HOSTS "/etc/hosts"
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#endif
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#ifndef _PATH_NETWORKS
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#define _PATH_NETWORKS "/etc/networks"
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#endif
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#ifndef _PATH_PROTOCOLS
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#define _PATH_PROTOCOLS "/etc/protocols"
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#endif
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#ifndef _PATH_SERVICES
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#define _PATH_SERVICES "/etc/services"
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#endif
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#ifndef _PATH_SERVICES_CDB
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#define _PATH_SERVICES_CDB "/var/db/services.cdb"
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#endif
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#ifndef _PATH_SERVICES_DB
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#define _PATH_SERVICES_DB "/var/db/services.db"
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#endif
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#endif
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__BEGIN_DECLS
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extern int h_errno;
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extern int * __h_errno(void);
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#ifdef _REENTRANT
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#define h_errno (*__h_errno())
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#endif
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__END_DECLS
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/*%
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* Structures returned by network data base library. All addresses are
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* supplied in host order, and returned in network order (suitable for
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* use in system calls).
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*/
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struct hostent {
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char *h_name; /*%< official name of host */
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char **h_aliases; /*%< alias list */
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int h_addrtype; /*%< host address type */
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int h_length; /*%< length of address */
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char **h_addr_list; /*%< list of addresses from name server */
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#define h_addr h_addr_list[0] /*%< address, for backward compatiblity */
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};
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/*%
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* Assumption here is that a network number
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* fits in an unsigned long -- probably a poor one.
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*/
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struct netent {
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char *n_name; /*%< official name of net */
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char **n_aliases; /*%< alias list */
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int n_addrtype; /*%< net address type */
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#if (defined(__sparc__) && defined(_LP64)) || \
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(defined(__sh__) && defined(_LP64) && (_BYTE_ORDER == _BIG_ENDIAN))
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int __n_pad0; /* ABI compatibility */
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#endif
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uint32_t n_net; /*%< network # */
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#if defined(__alpha__) || (defined(__i386__) && defined(_LP64)) || \
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(defined(__sh__) && defined(_LP64) && (_BYTE_ORDER == _LITTLE_ENDIAN))
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int __n_pad0; /* ABI compatibility */
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#endif
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};
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struct servent {
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char *s_name; /*%< official service name */
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char **s_aliases; /*%< alias list */
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int s_port; /*%< port # */
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char *s_proto; /*%< protocol to use */
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};
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struct protoent {
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char *p_name; /*%< official protocol name */
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char **p_aliases; /*%< alias list */
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int p_proto; /*%< protocol # */
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};
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/*
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* Note: ai_addrlen used to be a size_t, per RFC 2553.
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* In XNS5.2, and subsequently in POSIX-2001 and
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* draft-ietf-ipngwg-rfc2553bis-02.txt it was changed to a socklen_t.
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* To accommodate for this while preserving binary compatibility with the
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* old interface, we prepend or append 32 bits of padding, depending on
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* the (LP64) architecture's endianness.
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*
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* This should be deleted the next time the libc major number is
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* incremented.
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*/
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#if (_POSIX_C_SOURCE - 0) >= 200112L || (_XOPEN_SOURCE - 0) >= 520 || \
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defined(_NETBSD_SOURCE)
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struct addrinfo {
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int ai_flags; /*%< AI_PASSIVE, AI_CANONNAME */
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int ai_family; /*%< PF_xxx */
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int ai_socktype; /*%< SOCK_xxx */
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int ai_protocol; /*%< 0 or IPPROTO_xxx for IPv4 and IPv6 */
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#if defined(__sparc__) && defined(_LP64)
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int __ai_pad0; /* ABI compatibility */
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#endif
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socklen_t ai_addrlen; /*%< length of ai_addr */
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#if defined(__alpha__) || (defined(__i386__) && defined(_LP64))
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int __ai_pad0; /* ABI compatibility */
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#endif
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char *ai_canonname; /*%< canonical name for hostname */
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struct sockaddr *ai_addr; /*%< binary address */
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struct addrinfo *ai_next; /*%< next structure in linked list */
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};
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#endif
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/*%
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* Error return codes from gethostbyname() and gethostbyaddr()
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* (left in extern int h_errno).
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*/
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#if defined(_NETBSD_SOURCE)
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#define NETDB_INTERNAL -1 /*%< see errno */
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#define NETDB_SUCCESS 0 /*%< no problem */
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#endif
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#define NO_ADDRESS NO_DATA /* no address, look for MX record */
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#define HOST_NOT_FOUND 1 /*%< Authoritative Answer Host not found */
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#define TRY_AGAIN 2 /*%< Non-Authoritive Host not found, or SERVERFAIL */
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#define NO_RECOVERY 3 /*%< Non recoverable errors, FORMERR, REFUSED, NOTIMP */
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#define NO_DATA 4 /*%< Valid name, no data record of requested type */
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#if defined(_NETBSD_SOURCE)
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#define NO_ADDRESS NO_DATA /*%< no address, look for MX record */
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#endif
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/*
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* Error return codes from getaddrinfo()
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*/
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#if (_POSIX_C_SOURCE - 0) >= 200112L || (_XOPEN_SOURCE - 0) >= 520 || \
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defined(_NETBSD_SOURCE)
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#define EAI_ADDRFAMILY 1 /*%< address family for hostname not supported */
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#define EAI_AGAIN 2 /*%< temporary failure in name resolution */
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#define EAI_BADFLAGS 3 /*%< invalid value for ai_flags */
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#define EAI_FAIL 4 /*%< non-recoverable failure in name resolution */
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#define EAI_FAMILY 5 /*%< ai_family not supported */
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#define EAI_MEMORY 6 /*%< memory allocation failure */
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#define EAI_NODATA 7 /*%< no address associated with hostname */
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#define EAI_NONAME 8 /*%< hostname nor servname provided, or not known */
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#define EAI_SERVICE 9 /*%< servname not supported for ai_socktype */
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#define EAI_SOCKTYPE 10 /*%< ai_socktype not supported */
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#define EAI_SYSTEM 11 /*%< system error returned in errno */
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#define EAI_BADHINTS 12 /* invalid value for hints */
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#define EAI_PROTOCOL 13 /* resolved protocol is unknown */
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#define EAI_OVERFLOW 14 /* argument buffer overflow */
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#define EAI_MAX 15
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#endif /* _POSIX_C_SOURCE >= 200112 || _XOPEN_SOURCE >= 520 || _NETBSD_SOURCE */
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/*%
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* Flag values for getaddrinfo()
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*/
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#if (_POSIX_C_SOURCE - 0) >= 200112L || (_XOPEN_SOURCE - 0) >= 520 || \
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defined(_NETBSD_SOURCE)
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#define AI_PASSIVE 0x00000001 /* get address to use bind() */
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#define AI_CANONNAME 0x00000002 /* fill ai_canonname */
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#define AI_NUMERICHOST 0x00000004 /* prevent host name resolution */
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#define AI_NUMERICSERV 0x00000008 /* prevent service name resolution */
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/* valid flags for addrinfo (not a standard def, apps should not use it) */
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#define AI_MASK \
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(AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_NUMERICSERV | \
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AI_ADDRCONFIG)
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#define AI_ADDRCONFIG 0x00000400 /* only if any address is assigned */
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#endif
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#if (_POSIX_C_SOURCE - 0) >= 200112L || (_XOPEN_SOURCE - 0) >= 520 || \
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defined(_NETBSD_SOURCE)
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/*%
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* Constants for getnameinfo()
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*/
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#if defined(_NETBSD_SOURCE)
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#define NI_MAXHOST 1025
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#define NI_MAXSERV 32
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#endif
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/*%
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* Flag values for getnameinfo()
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*/
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#define NI_NOFQDN 0x00000001
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#define NI_NUMERICHOST 0x00000002
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#define NI_NAMEREQD 0x00000004
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#define NI_NUMERICSERV 0x00000008
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#define NI_DGRAM 0x00000010
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#define NI_WITHSCOPEID 0x00000020
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#define NI_NUMERICSCOPE 0x00000040
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/*%
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* Scope delimit character
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*/
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#if defined(_NETBSD_SOURCE)
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#define SCOPE_DELIMITER '%'
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#endif
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#endif /* (_POSIX_C_SOURCE - 0) >= 200112L || ... */
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__BEGIN_DECLS
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void endhostent(void);
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void endnetent(void);
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void endprotoent(void);
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void endservent(void);
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#if (_XOPEN_SOURCE - 0) >= 520 && (_XOPEN_SOURCE - 0) < 600 || \
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defined(_NETBSD_SOURCE)
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#if 0 /* we do not ship this */
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void freehostent(struct hostent *);
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#endif
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#endif
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struct hostent *gethostbyaddr(const char *, socklen_t, int);
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struct hostent *gethostbyname(const char *);
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#if defined(_NETBSD_SOURCE)
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struct hostent *gethostbyname2(const char *, int);
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#endif
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struct hostent *gethostent(void);
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struct netent *getnetbyaddr(uint32_t, int);
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struct netent *getnetbyname(const char *);
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struct netent *getnetent(void);
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struct protoent *getprotobyname(const char *);
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struct protoent *getprotobynumber(int);
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struct protoent *getprotoent(void);
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struct servent *getservbyname(const char *, const char *);
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struct servent *getservbyport(int, const char *);
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struct servent *getservent(void);
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#if defined(_NETBSD_SOURCE)
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void herror(const char *);
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const char *hstrerror(int);
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#endif
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void sethostent(int);
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#if defined(_NETBSD_SOURCE)
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/* void sethostfile(const char *); */
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#endif
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void setnetent(int);
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void setprotoent(int);
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void setservent(int);
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#if (_POSIX_C_SOURCE - 0) >= 200112L || (_XOPEN_SOURCE - 0) >= 520 || \
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defined(_NETBSD_SOURCE)
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int getaddrinfo(const char * __restrict, const char * __restrict,
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const struct addrinfo * __restrict,
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struct addrinfo ** __restrict);
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int getnameinfo(const struct sockaddr * __restrict, socklen_t,
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char * __restrict, socklen_t,
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char * __restrict, socklen_t, int);
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struct addrinfo *allocaddrinfo(socklen_t);
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void freeaddrinfo(struct addrinfo *);
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const char *gai_strerror(int);
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#endif
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__END_DECLS
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#endif /* !_NETDB_H_ */
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