307 lines
11 KiB
C
307 lines
11 KiB
C
/*-
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* SPDX-License-Identifier: (BSD-3-Clause AND ISC)
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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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* -
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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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* $FreeBSD$
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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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#ifndef _IN_ADDR_T_DECLARED
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typedef __uint32_t in_addr_t;
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#define _IN_ADDR_T_DECLARED
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#endif
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#ifndef _IN_PORT_T_DECLARED
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typedef __uint16_t in_port_t;
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#define _IN_PORT_T_DECLARED
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#endif
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#ifndef _SIZE_T_DECLARED
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typedef __size_t size_t;
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#define _SIZE_T_DECLARED
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#endif
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#ifndef _SOCKLEN_T_DECLARED
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typedef __socklen_t socklen_t;
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#define _SOCKLEN_T_DECLARED
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#endif
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#ifndef _UINT32_T_DECLARED
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typedef __uint32_t uint32_t;
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#define _UINT32_T_DECLARED
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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_SERVICES_DB "/var/db/services.db"
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#define h_errno (*__h_errno())
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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 compatibility */
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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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uint32_t 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; /* AF_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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socklen_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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#define IPPORT_RESERVED 1024
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/*
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* Error return codes from gethostbyname() and gethostbyaddr()
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* (left in 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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#if 0
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/* obsoleted */
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#define EAI_ADDRFAMILY 1 /* address family for hostname not supported */
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#endif
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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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#if 0
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/* obsoleted */
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#define EAI_NODATA 7 /* no address associated with hostname */
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#endif
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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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/*
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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 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 | AI_ALL | AI_V4MAPPED)
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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_NUMERICSCOPE 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 endnetent(void);
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void endprotoent(void);
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void endservent(void);
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#if __BSD_VISIBLE || (__POSIX_VISIBLE && __POSIX_VISIBLE <= 200112)
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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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#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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void sethostent(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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size_t, char *, size_t, int);
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void freeaddrinfo(struct addrinfo *);
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const char *gai_strerror(int);
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void setservent(int);
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#if __BSD_VISIBLE
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void endnetgrent(void);
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void freehostent(struct hostent *);
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int gethostbyaddr_r(const void *, socklen_t, int, struct hostent *,
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char *, size_t, struct hostent **, int *);
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int gethostbyname_r(const char *, struct hostent *, char *, size_t,
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struct hostent **, int *);
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struct hostent *gethostbyname2(const char *, int);
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int gethostbyname2_r(const char *, int, struct hostent *, char *,
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size_t, struct hostent **, int *);
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int gethostent_r(struct hostent *, char *, size_t,
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struct hostent **, int *);
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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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int getnetbyaddr_r(uint32_t, int, struct netent *, char *, size_t,
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struct netent**, int *);
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int getnetbyname_r(const char *, struct netent *, char *, size_t,
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struct netent **, int *);
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int getnetent_r(struct netent *, char *, size_t, struct netent **,
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int *);
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int getnetgrent(char **, char **, char **);
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int getnetgrent_r(char **, char **, char **, char *, size_t);
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int getprotobyname_r(const char *, struct protoent *, char *,
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size_t, struct protoent **);
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int getprotobynumber_r(int, struct protoent *, char *, size_t,
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struct protoent **);
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int getprotoent_r(struct protoent *, char *, size_t,
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struct protoent **);
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int getservbyname_r(const char *, const char *, struct servent *,
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char *, size_t, struct servent **);
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int getservbyport_r(int, const char *, struct servent *, char *,
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size_t, struct servent **);
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int getservent_r(struct servent *, char *, size_t,
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struct servent **);
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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 setnetgrent(const char *);
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#endif
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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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int * __h_errno(void);
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__END_DECLS
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#endif /* !_NETDB_H_ */
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