290 lines
11 KiB
C
290 lines
11 KiB
C
/*-
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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. 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 the University of
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* California, Berkeley and its contributors.
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* 4. 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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* -
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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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* --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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* From: Id: netdb.h,v 8.9 1996/11/19 08:39:29 vixie Exp $
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* $FreeBSD: src/include/netdb.h,v 1.23 2002/03/23 17:24:53 imp Exp $
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*/
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#ifndef _NETDB_H_
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#define _NETDB_H_
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <machine/ansi.h>
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#include <stdio.h>
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#ifndef __socklen_t_defined
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typedef unsigned int socklen_t;
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#define __socklen_t_defined 1
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#endif
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#ifdef _BSD_SOCKLEN_T_
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typedef _BSD_SOCKLEN_T_ socklen_t;
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#undef _BSD_SOCKLEN_T_
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#endif
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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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#define _PATH_HOSTS "/etc/hosts"
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#define _PATH_NETWORKS "/etc/networks"
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#define _PATH_PROTOCOLS "/etc/protocols"
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#define _PATH_SERVICES "/etc/services"
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#define _PATH_NSSWITCH_CONF "/etc/nsswitch.conf"
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extern int *__h_errno_location(void);
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#define h_errno (*(__h_errno_location()))
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#define MAXALIASES 35
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/* For now, only support one return address. */
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#define MAXADDRS 2
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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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char *h_addr; /* address, for backward compatibility */
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/* private data, for re-entrancy */
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char *__host_addrs[MAXADDRS];
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char *__host_aliases[MAXALIASES];
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unsigned int __host_addr[4];
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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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unsigned long n_net; /* network # */
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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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struct addrinfo {
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int ai_flags; /* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */
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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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size_t ai_addrlen; /* length of ai_addr */
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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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/*
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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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#define NETDB_INTERNAL -1 /* see errno */
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#define NETDB_SUCCESS 0 /* no problem */
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#define HOST_NOT_FOUND 1 /* Authoritative Answer Host not found */
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#define TRY_AGAIN 2 /* Non-Authoritative 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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#define NO_ADDRESS NO_DATA /* no address, look for MX record */
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/*
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* Error return codes from getaddrinfo()
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*/
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/* Error values for `getaddrinfo' function. */
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# define EAI_BADFLAGS -1 /* Invalid value for `ai_flags' field. */
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# define EAI_NONAME -2 /* NAME or SERVICE is unknown. */
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# define EAI_AGAIN -3 /* Temporary failure in name resolution. */
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# define EAI_FAIL -4 /* Non-recoverable failure in name res. */
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# define EAI_NODATA -5 /* No address associated with NAME. */
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# define EAI_FAMILY -6 /* `ai_family' not supported. */
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# define EAI_SOCKTYPE -7 /* `ai_socktype' not supported. */
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# define EAI_SERVICE -8 /* SERVICE not supported for `ai_socktype'. */
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# define EAI_ADDRFAMILY -9 /* Address family for NAME not supported. */
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# define EAI_MEMORY -10 /* Memory allocation failure. */
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# define EAI_SYSTEM -11 /* System error returned in `errno'. */
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# define EAI_OVERFLOW -12 /* Argument buffer overflow. */
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# ifdef __USE_GNU
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# define EAI_INPROGRESS -100 /* Processing request in progress. */
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# define EAI_CANCELED -101 /* Request canceled. */
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# define EAI_NOTCANCELED -102 /* Request not canceled. */
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# define EAI_ALLDONE -103 /* All requests done. */
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# define EAI_INTR -104 /* Interrupted by a signal. */
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# define EAI_IDN_ENCODE -105 /* IDN encoding failed. */
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# endif
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/*
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* Flag values for getaddrinfo()
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*/
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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 name resolution */
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#define AI_NUMERICSERV 0x00000008 /* don't use name resolution. */
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/* valid flags for addrinfo */
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#define AI_MASK \
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(AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_ADDRCONFIG)
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#define AI_ALL 0x00000100 /* IPv6 and IPv4-mapped (with AI_V4MAPPED) */
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#define AI_V4MAPPED_CFG 0x00000200 /* accept IPv4-mapped if kernel supports */
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#define AI_ADDRCONFIG 0x00000400 /* only if any address is assigned */
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#define AI_V4MAPPED 0x00000800 /* accept IPv4-mapped IPv6 address */
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/* special recommended flags for getipnodebyname */
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#define AI_DEFAULT (AI_V4MAPPED_CFG | AI_ADDRCONFIG)
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/*
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* Constants for getnameinfo()
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*/
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#define NI_MAXHOST 1025
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#define NI_MAXSERV 32
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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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/*
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* Scope delimit character
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*/
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#define SCOPE_DELIMITER '%'
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__BEGIN_DECLS
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void endhostent(void);
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void endhostent_r(FILE **, int *);
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void endnetent(void);
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void endnetgrent(void);
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void endprotoent(void);
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void endservent(void);
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void freehostent(struct hostent *);
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struct hostent *gethostbyaddr(const void *, socklen_t, int);
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struct hostent *gethostbyname(const char *);
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struct hostent *gethostbyname2(const char *, int);
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struct hostent *gethostent(void);
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int gethostent_r(struct hostent *, char *, int, int *, FILE **);
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struct hostent *getipnodebyaddr(const void *, size_t, int, int *);
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struct hostent *getipnodebyname(const char *, int, int, int *);
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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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int getnetgrent(char **, char **, char **);
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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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void herror(const char *);
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__const char *hstrerror(int);
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int innetgr(const char *, const char *, const char *, const char *);
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void sethostent(int);
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void sethostent_r(int, FILE **, int *);
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/* void sethostfile(const char *); */
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void setnetent(int);
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void setprotoent(int);
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int getaddrinfo(const char *, const char *,
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const struct addrinfo *, struct addrinfo **);
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int getnameinfo(const struct sockaddr *, socklen_t, char *,
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socklen_t, char *, socklen_t, unsigned int);
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void freeaddrinfo(struct addrinfo *);
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char *gai_strerror(int);
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int setnetgrent(const char *);
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void setservent(int);
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/*
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* PRIVATE functions specific to the FreeBSD implementation
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*/
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/* DO NOT USE THESE, THEY ARE SUBJECT TO CHANGE AND ARE NOT PORTABLE!!! */
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void _sethosthtent(int);
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void _sethosthtent_r(int, FILE **, int *);
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void _endhosthtent(void);
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void _endhosthtent_r(FILE **, int *);
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void _sethostdnsent(int);
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void _endhostdnsent(void);
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void _setnethtent(int);
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void _endnethtent(void);
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void _setnetdnsent(int);
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void _endnetdnsent(void);
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struct hostent * _gethostbynisname(const char *, int);
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struct hostent * _gethostbynisaddr(const char *, int, int);
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void _map_v4v6_address(const char *, char *);
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void _map_v4v6_hostent(struct hostent *, char **, int *);
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__END_DECLS
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#endif /* !_NETDB_H_ */
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