/*- * 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. * * - * 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-- */ /* * @(#)netdb.h 8.1 (Berkeley) 6/2/93 * From: Id: netdb.h,v 8.9 1996/11/19 08:39:29 vixie Exp $ * $FreeBSD: src/include/netdb.h,v 1.23 2002/03/23 17:24:53 imp Exp $ */ #ifndef _NETDB_H_ #define _NETDB_H_ #include #include #include #include #ifndef __socklen_t_defined typedef unsigned int socklen_t; #define __socklen_t_defined 1 #endif #ifdef _BSD_SOCKLEN_T_ typedef _BSD_SOCKLEN_T_ socklen_t; #undef _BSD_SOCKLEN_T_ #endif #ifndef _PATH_HEQUIV # define _PATH_HEQUIV "/etc/hosts.equiv" #endif #define _PATH_HOSTS "/etc/hosts" #define _PATH_NETWORKS "/etc/networks" #define _PATH_PROTOCOLS "/etc/protocols" #define _PATH_SERVICES "/etc/services" #define _PATH_NSSWITCH_CONF "/etc/nsswitch.conf" extern int *__h_errno_location(void); #define h_errno (*(__h_errno_location())) #define MAXALIASES 35 /* For now, only support one return address. */ #define MAXADDRS 2 /* * 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 */ char *h_addr; /* address, for backward compatibility */ /* private data, for re-entrancy */ char *__host_addrs[MAXADDRS]; char *__host_aliases[MAXALIASES]; unsigned int __host_addr[4]; }; /* * 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 # */ }; 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 # */ }; 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 */ size_t ai_addrlen; /* length of ai_addr */ char *ai_canonname; /* canonical name for hostname */ struct sockaddr *ai_addr; /* binary address */ struct addrinfo *ai_next; /* next structure in linked list */ }; /* * Error return codes from gethostbyname() and gethostbyaddr() * (left in extern int h_errno). */ #define NETDB_INTERNAL -1 /* see errno */ #define NETDB_SUCCESS 0 /* no problem */ #define HOST_NOT_FOUND 1 /* Authoritative Answer Host not found */ #define TRY_AGAIN 2 /* Non-Authoritative Host not found, or SERVERFAIL */ #define NO_RECOVERY 3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */ #define NO_DATA 4 /* Valid name, no data record of requested type */ #define NO_ADDRESS NO_DATA /* no address, look for MX record */ /* * Error return codes from getaddrinfo() */ /* Error values for `getaddrinfo' function. */ # define EAI_BADFLAGS -1 /* Invalid value for `ai_flags' field. */ # define EAI_NONAME -2 /* NAME or SERVICE is unknown. */ # define EAI_AGAIN -3 /* Temporary failure in name resolution. */ # define EAI_FAIL -4 /* Non-recoverable failure in name res. */ # define EAI_NODATA -5 /* No address associated with NAME. */ # define EAI_FAMILY -6 /* `ai_family' not supported. */ # define EAI_SOCKTYPE -7 /* `ai_socktype' not supported. */ # define EAI_SERVICE -8 /* SERVICE not supported for `ai_socktype'. */ # define EAI_ADDRFAMILY -9 /* Address family for NAME not supported. */ # define EAI_MEMORY -10 /* Memory allocation failure. */ # define EAI_SYSTEM -11 /* System error returned in `errno'. */ # define EAI_OVERFLOW -12 /* Argument buffer overflow. */ # ifdef __USE_GNU # define EAI_INPROGRESS -100 /* Processing request in progress. */ # define EAI_CANCELED -101 /* Request canceled. */ # define EAI_NOTCANCELED -102 /* Request not canceled. */ # define EAI_ALLDONE -103 /* All requests done. */ # define EAI_INTR -104 /* Interrupted by a signal. */ # define EAI_IDN_ENCODE -105 /* IDN encoding failed. */ # endif /* * Flag values for getaddrinfo() */ #define AI_PASSIVE 0x00000001 /* get address to use bind() */ #define AI_CANONNAME 0x00000002 /* fill ai_canonname */ #define AI_NUMERICHOST 0x00000004 /* prevent name resolution */ #define AI_NUMERICSERV 0x00000008 /* don't use name resolution. */ /* valid flags for addrinfo */ #define AI_MASK \ (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_ADDRCONFIG) #define AI_ALL 0x00000100 /* IPv6 and IPv4-mapped (with AI_V4MAPPED) */ #define AI_V4MAPPED_CFG 0x00000200 /* accept IPv4-mapped if kernel supports */ #define AI_ADDRCONFIG 0x00000400 /* only if any address is assigned */ #define AI_V4MAPPED 0x00000800 /* accept IPv4-mapped IPv6 address */ /* special recommended flags for getipnodebyname */ #define AI_DEFAULT (AI_V4MAPPED_CFG | AI_ADDRCONFIG) /* * Constants for getnameinfo() */ #define NI_MAXHOST 1025 #define NI_MAXSERV 32 /* * Flag values for getnameinfo() */ #define NI_NOFQDN 0x00000001 #define NI_NUMERICHOST 0x00000002 #define NI_NAMEREQD 0x00000004 #define NI_NUMERICSERV 0x00000008 #define NI_DGRAM 0x00000010 #define NI_WITHSCOPEID 0x00000020 /* * Scope delimit character */ #define SCOPE_DELIMITER '%' __BEGIN_DECLS void endhostent(void); void endhostent_r(FILE **, int *); void endnetent(void); void endnetgrent(void); void endprotoent(void); void endservent(void); void freehostent(struct hostent *); struct hostent *gethostbyaddr(const void *, socklen_t, int); struct hostent *gethostbyname(const char *); struct hostent *gethostbyname2(const char *, int); struct hostent *gethostent(void); int gethostent_r(struct hostent *, char *, int, int *, FILE **); struct hostent *getipnodebyaddr(const void *, size_t, int, int *); struct hostent *getipnodebyname(const char *, int, int, int *); struct netent *getnetbyaddr(uint32_t, int); struct netent *getnetbyname(const char *); struct netent *getnetent(void); int getnetgrent(char **, char **, char **); struct protoent *getprotobyname(const char *); struct protoent *getprotobynumber(int); struct protoent *getprotoent(void); struct servent *getservbyname(const char *, const char *); struct servent *getservbyport(int, const char *); struct servent *getservent(void); void herror(const char *); __const char *hstrerror(int); int innetgr(const char *, const char *, const char *, const char *); void sethostent(int); void sethostent_r(int, FILE **, int *); /* void sethostfile(const char *); */ void setnetent(int); void setprotoent(int); int getaddrinfo(const char *__restrict, const char *__restrict, const struct addrinfo *__restrict, struct addrinfo **__restrict); int getnameinfo(const struct sockaddr *__restrict, socklen_t, char *__restrict, socklen_t, char *__restrict, socklen_t, unsigned int); void freeaddrinfo(struct addrinfo *); char *gai_strerror(int); int setnetgrent(const char *); void setservent(int); /* * PRIVATE functions specific to the FreeBSD implementation */ /* DO NOT USE THESE, THEY ARE SUBJECT TO CHANGE AND ARE NOT PORTABLE!!! */ void _sethosthtent(int); void _sethosthtent_r(int, FILE **, int *); void _endhosthtent(void); void _endhosthtent_r(FILE **, int *); void _sethostdnsent(int); void _endhostdnsent(void); void _setnethtent(int); void _endnethtent(void); void _setnetdnsent(int); void _endnetdnsent(void); struct hostent * _gethostbynisname(const char *, int); struct hostent * _gethostbynisaddr(const char *, int, int); void _map_v4v6_address(const char *, char *); void _map_v4v6_hostent(struct hostent *, char **, int *); __END_DECLS #endif /* !_NETDB_H_ */