1 /*- 2 * Copyright (c) 1980, 1983, 1988, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * - 34 * Portions Copyright (c) 1993 by Digital Equipment Corporation. 35 * 36 * Permission to use, copy, modify, and distribute this software for any 37 * purpose with or without fee is hereby granted, provided that the above 38 * copyright notice and this permission notice appear in all copies, and that 39 * the name of Digital Equipment Corporation not be used in advertising or 40 * publicity pertaining to distribution of the document or software without 41 * specific, written prior permission. 42 * 43 * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL 44 * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES 45 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT 46 * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 47 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 48 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS 49 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 50 * SOFTWARE. 51 * - 52 * --Copyright-- 53 */ 54 55 /* 56 * @(#)netdb.h 8.1 (Berkeley) 6/2/93 57 * From: Id: netdb.h,v 8.9 1996/11/19 08:39:29 vixie Exp $ 58 * $FreeBSD$ 59 */ 60 61 #ifndef _NETDB_H_ 62 #define _NETDB_H_ 63 64 #include <sys/cdefs.h> 65 66 #ifndef _PATH_HEQUIV 67 # define _PATH_HEQUIV "/etc/hosts.equiv" 68 #endif 69 #define _PATH_HOSTS "/etc/hosts" 70 #define _PATH_NETWORKS "/etc/networks" 71 #define _PATH_PROTOCOLS "/etc/protocols" 72 #define _PATH_SERVICES "/etc/services" 73 74 extern int h_errno; 75 76 /* 77 * Structures returned by network data base library. All addresses are 78 * supplied in host order, and returned in network order (suitable for 79 * use in system calls). 80 */ 81 struct hostent { 82 char *h_name; /* official name of host */ 83 char **h_aliases; /* alias list */ 84 int h_addrtype; /* host address type */ 85 int h_length; /* length of address */ 86 char **h_addr_list; /* list of addresses from name server */ 87 #define h_addr h_addr_list[0] /* address, for backward compatibility */ 88 }; 89 90 /* 91 * Assumption here is that a network number 92 * fits in an unsigned long -- probably a poor one. 93 */ 94 struct netent { 95 char *n_name; /* official name of net */ 96 char **n_aliases; /* alias list */ 97 int n_addrtype; /* net address type */ 98 unsigned long n_net; /* network # */ 99 }; 100 101 struct servent { 102 char *s_name; /* official service name */ 103 char **s_aliases; /* alias list */ 104 int s_port; /* port # */ 105 char *s_proto; /* protocol to use */ 106 }; 107 108 struct protoent { 109 char *p_name; /* official protocol name */ 110 char **p_aliases; /* alias list */ 111 int p_proto; /* protocol # */ 112 }; 113 114 /* 115 * Error return codes from gethostbyname() and gethostbyaddr() 116 * (left in extern int h_errno). 117 */ 118 119 #define NETDB_INTERNAL -1 /* see errno */ 120 #define NETDB_SUCCESS 0 /* no problem */ 121 #define HOST_NOT_FOUND 1 /* Authoritative Answer Host not found */ 122 #define TRY_AGAIN 2 /* Non-Authoritative Host not found, or SERVERFAIL */ 123 #define NO_RECOVERY 3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */ 124 #define NO_DATA 4 /* Valid name, no data record of requested type */ 125 #define NO_ADDRESS NO_DATA /* no address, look for MX record */ 126 127 __BEGIN_DECLS 128 void endhostent __P((void)); 129 void endnetent __P((void)); 130 void endprotoent __P((void)); 131 void endservent __P((void)); 132 struct hostent *gethostbyaddr __P((const char *, int, int)); 133 struct hostent *gethostbyname __P((const char *)); 134 struct hostent *gethostbyname2 __P((const char *, int)); 135 struct hostent *gethostent __P((void)); 136 struct netent *getnetbyaddr __P((unsigned long, int)); 137 struct netent *getnetbyname __P((const char *)); 138 struct netent *getnetent __P((void)); 139 struct protoent *getprotobyname __P((const char *)); 140 struct protoent *getprotobynumber __P((int)); 141 struct protoent *getprotoent __P((void)); 142 struct servent *getservbyname __P((const char *, const char *)); 143 struct servent *getservbyport __P((int, const char *)); 144 struct servent *getservent __P((void)); 145 void herror __P((const char *)); 146 __const char *hstrerror __P((int)); 147 void sethostent __P((int)); 148 /* void sethostfile __P((const char *)); */ 149 void setnetent __P((int)); 150 void setprotoent __P((int)); 151 void setservent __P((int)); 152 153 /* 154 * PRIVATE functions specific to the FreeBSD implementation 155 */ 156 157 /* DO NOT USE THESE, THEY ARE SUBJECT TO CHANGE AND ARE NOT PORTABLE!!! */ 158 void _sethosthtent __P((int)); 159 void _endhosthtent __P((void)); 160 void _sethostdnsent __P((int)); 161 void _endhostdnsent __P((void)); 162 void _setnethtent __P((int)); 163 void _endnethtent __P((void)); 164 void _setnetdnsent __P((int)); 165 void _endnetdnsent __P((void)); 166 struct hostent * _gethostbyhtname __P((const char *, int)); 167 struct hostent * _gethostbydnsname __P((const char *, int)); 168 struct hostent * _gethostbynisname __P((const char *, int)); 169 struct hostent * _gethostbyhtaddr __P((const char *, int, int)); 170 struct hostent * _gethostbydnsaddr __P((const char *, int, int)); 171 struct hostent * _gethostbynisaddr __P((const char *, int, int)); 172 struct netent * _getnetbyhtname __P((const char *)); 173 struct netent * _getnetbydnsname __P((const char *)); 174 struct netent * _getnetbynisname __P((const char *)); 175 struct netent * _getnetbyhtaddr __P((unsigned long, int)); 176 struct netent * _getnetbydnsaddr __P((unsigned long, int)); 177 struct netent * _getnetbynisaddr __P((unsigned long, int)); 178 void _map_v4v6_address __P((const char *src, char *dst)); 179 void _map_v4v6_hostent __P((struct hostent *hp, char **bp, int *len)); 180 __END_DECLS 181 182 #endif /* !_NETDB_H_ */ 183