diff options
Diffstat (limited to 'resolv')
| -rw-r--r-- | resolv/netdb.h | 447 |
1 files changed, 298 insertions, 149 deletions
diff --git a/resolv/netdb.h b/resolv/netdb.h index 38367e3..cca3060 100644 --- a/resolv/netdb.h +++ b/resolv/netdb.h @@ -1,72 +1,35 @@ -/* - * ++Copyright++ 1980, 1983, 1988, 1993 - * - - * 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 - * $Id$ - */ - -#ifndef _NETDB_H_ -#define _NETDB_H_ - -#include <sys/param.h> -#if (!defined(BSD)) || (BSD < 199306) -# include <sys/bitypes.h> -#endif -#include <sys/cdefs.h> +/* Copyright (C) 1996 Free Software Foundation, Inc. + This file is part of the GNU C Library. + The GNU C Library is free software; you can redistribute it + and/or modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be + useful, but WITHOUT ANY WARRANTY; without even the implied warranty + of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., 59 Temple Place - + Suite 330, Boston, MA 02111-1307, USA. */ + +/* All data returned by the network data base library are supplied in + host order and returned in network order (suitable for use in + system calls). */ + +#ifndef _NETDB_H + +#define _NETDB_H 1 +#include <features.h> + +/* This is necessary to make this include file properly replace the + Sun version. */ +#include <rpc/netdb.h> + +/* Absolute file name for network data base files. */ #define _PATH_HEQUIV "/etc/hosts.equiv" #define _PATH_HOSTS "/etc/hosts" #define _PATH_NETWORKS "/etc/networks" @@ -74,98 +37,284 @@ #define _PATH_PROTOCOLS "/etc/protocols" #define _PATH_SERVICES "/etc/services" + +__BEGIN_DECLS + +/* Error status for non-reentrant lookup functions. */ extern int h_errno; -/* - * 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 */ -#define h_addr h_addr_list[0] /* address, for backward compatiblity */ -}; +/* Possible values left in `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-Authoritive 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. */ + +/* Print error indicated by `h_errno' variable on standard error. STR + if non-null is printed before the error string. */ +extern void herror __P ((__const char *__str)); + +/* Return string associated with error ERR_NUM. */ +extern __const char *hstrerror __P ((int __err_num)); + -/* - * 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 # */ + +/* Description of data base entry for a single host. */ +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. */ +#define h_addr h_addr_list[0] /* Address, for backward compatiblity. */ }; -struct servent { - char *s_name; /* official service name */ - char **s_aliases; /* alias list */ - int s_port; /* port # */ - char *s_proto; /* protocol to use */ +/* Open host data base files and mark them as staying open even after + a later search if STAY_OPEN is non-zero. */ +extern void sethostent __P ((int __stay_open)); + +/* Close host data base files and clear `stay open' flag. */ +extern void endhostent __P ((void)); + +/* Get next entry from host data base file. Open data base if + necessary. */ +extern struct hostent *gethostent __P ((void)); + +/* Return entry from host data base which address match ADDR with + length LEN and type TYPE. */ +extern struct hostent *gethostbyaddr __P ((__const char *__addr, int __len, + int __type)); + +/* Return entry from host data base for host with NAME. */ +extern struct hostent *gethostbyname __P ((__const char *__name)); + +/* Return entry from host data base for host with NAME. AF must be + set to the address type which as `AF_INET' for IPv4 or `AF_INET6' + for IPv6. */ +extern struct hostent *gethostbyname2 __P ((__const char *__name, int __af)); + +#ifdef __USE_REENTRANT +/* Reentrant versions of the functions above. The additional + arguments specify a buffer of BUFLEN starting at BUF. The last + argument is a pointer to a variable which gets the value which + would be stored in the global variable `herrno' by the + non-reentrant functions. */ +extern struct hostent *__gethostent_r __P ((struct hostent *__result_buf, + char *__buf, int __buf_len, + int *__h_errnop)); +extern struct hostent *gethostent_r __P ((struct hostent *__result_buf, + char *__buf, int __buf_len, + int *__h_errnop)); + +extern struct hostent *__gethostbyaddr_r __P ((__const char *__addr, int __len, + int __type, + struct hostent *__result_buf, + char *__buf, int __buflen, + int *__h_errnop)); +extern struct hostent *gethostbyaddr_r __P ((__const char *__addr, int __len, + int __type, + struct hostent *__result_buf, + char *__buf, int __buflen, + int *__h_errnop)); + +extern struct hostent *__gethostbyname_r __P ((__const char *__name, + struct hostent *__result_buf, + char *__buf, int __buflen, + int *__h_errnop)); +extern struct hostent *gethostbyname_r __P ((__const char *__name, + struct hostent *__result_buf, + char *__buf, int __buflen, + int *__h_errnop)); + +extern struct hostent *__gethostbyname2_r __P ((__const char *__name, int __af, + struct hostent *__result_buf, + char *__buf, int __buflen, + int *__h_errnop)); +extern struct hostent *gethostbyname2_r __P ((__const char *__name, int __af, + struct hostent *__result_buf, + char *__buf, int __buflen, + int *__h_errnop)); +#endif /* reentrant */ + + +/* Description of data base entry for a single network. NOTE: here a + poor assumption is made. The network number is expected to fit + into an unsigned long int variable. */ +struct netent +{ + char *n_name; /* Official name of network. */ + char **n_aliases; /* Alias list. */ + int n_addrtype; /* Net address type. */ + unsigned long int n_net; /* Network number. */ }; -struct protoent { - char *p_name; /* official protocol name */ - char **p_aliases; /* alias list */ - int p_proto; /* protocol # */ +/* Open network data base files and mark them as staying open even + after a later search if STAY_OPEN is non-zero. */ +extern void setnetent __P ((int __stay_open)); + +/* Close network data base files and clear `stay open' flag. */ +extern void endnetent __P ((void)); + +/* Get next entry from network data base file. Open data base if + necessary. */ +extern struct netent *getnetent __P ((void)); + +/* Return entry from network data base which address match NET and + type TYPE. */ +extern struct netent *getnetbyaddr __P ((unsigned long int __net, + int __type)); + +/* Return entry from network data base for network with NAME. */ +extern struct netent *getnetbyname __P ((__const char *__name)); + +#ifdef __USE_REENTRANT +/* Reentrant versions of the functions above. The additional + arguments specify a buffer of BUFLEN starting at BUF. The last + argument is a pointer to a variable which gets the value which + would be stored in the global variable `herrno' by the + non-reentrant functions. */ +extern struct netent *__getnetent_r __P ((struct netent *__result_buf, + char *__buf, int __buf_len, + int *__h_errnop)); +extern struct netent *getnetent_r __P ((struct netent *__result_buf, + char *__buf, int __buf_len, + int *__h_errnop)); + +extern struct netent *__getnetbyaddr_r __P ((unsigned long int __net, + int __type, + struct netent *__result_buf, + char *__buf, int __buflen, + int *__h_errnop)); +extern struct netent *getnetbyaddr_r __P ((unsigned long int __net, + int __type, + struct netent *__result_buf, + char *__buf, int __buflen, + int *__h_errnop)); + +extern struct netent *__getnetbyname_r __P ((__const char *__name, + struct netent *__result_buf, + char *__buf, int __buflen, + int *__h_errnop)); +extern struct netent *getnetbyname_r __P ((__const char *__name, + struct netent *__result_buf, + char *__buf, int __buflen, + int *__h_errnop)); +#endif /* reentrant */ + + +/* Description of data base entry for a single service. */ +struct servent +{ + char *s_name; /* Official service name. */ + char **s_aliases; /* Alias list. */ + int s_port; /* Port number. */ + char *s_proto; /* Protocol to use. */ }; -/* - * Error return codes from gethostbyname() and gethostbyaddr() - * (left in extern int h_errno). - */ +/* Open service data base files and mark them as staying open even + after a later search if STAY_OPEN is non-zero. */ +extern void setservent __P ((int __stay_open)); -#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-Authoritive 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 */ +/* Close service data base files and clear `stay open' flag. */ +extern void endservent __P ((void)); -__BEGIN_DECLS -void endhostent __P((void)); -void endnetent __P((void)); -void endprotoent __P((void)); -void endservent __P((void)); -struct hostent *gethostbyaddr __P((const char *, int, int)); -struct hostent *gethostbyname __P((const char *)); -struct hostent *gethostbyname2 __P((const char *, int)); -struct hostent *gethostent __P((void)); -struct netent *getnetbyaddr __P((unsigned long, int)); -struct netent *getnetbyname __P((const char *)); -struct netent *getnetent __P((void)); -struct protoent *getprotobyname __P((const char *)); -struct protoent *getprotobynumber __P((int)); -struct protoent *getprotoent __P((void)); -struct servent *getservbyname __P((const char *, const char *)); -struct servent *getservbyport __P((int, const char *)); -struct servent *getservent __P((void)); -void herror __P((const char *)); -const char *hstrerror __P((int)); -void sethostent __P((int)); -/* void sethostfile __P((const char *)); */ -void setnetent __P((int)); -void setprotoent __P((int)); -void setservent __P((int)); -__END_DECLS +/* Get next entry from service data base file. Open data base if + necessary. */ +extern struct servent *getservent __P ((void)); -/* This is nec'y to make this include file properly replace the sun version. */ -#ifdef __GNU_LIBRARY__ -#include <rpc/netdb.h> -#else -#ifdef sun -struct rpcent { - char *r_name; /* name of server for this rpc program */ - char **r_aliases; /* alias list */ - int r_number; /* rpc program number */ +/* Return entry from network data base for network with NAME and + protocol PROTO. */ +extern struct servent *getservbyname __P ((__const char *__name, + __const char *__proto)); + +/* Return entry from service data base which matches port PORT and + protocol PROTO. */ +extern struct servent *getservbyport __P ((int __port, __const char *__proto)); + + +#ifdef __USE_REENTRANT +/* Reentrant versions of the functions above. The additional + arguments specify a buffer of BUFLEN starting at BUF. */ +extern struct servent *__getservent_r __P ((struct servent *__result_buf, + char *__buf, int __buf_len)); +extern struct servent *getservent_r __P ((struct servent *__result_buf, + char *__buf, int __buf_len)); + +extern struct servent *__getservbyname_r __P ((__const char *__name, + __const char *__proto, + struct servent *__result_buf, + char *__buf, int __buflen)); +extern struct servent *getservbyname_r __P ((__const char *__name, + __const char *__proto, + struct servent *__result_buf, + char *__buf, int __buflen)); + +extern struct servent *__getservbyport_r __P ((int __port, + __const char *__proto, + struct servent *__result_buf, + char *__buf, int __buflen)); +extern struct servent *getservbyport_r __P ((int __port, __const char *__proto, + struct servent *__result_buf, + char *__buf, int __buflen)); +#endif /* reentrant */ + + +/* Description of data base entry for a single service. */ +struct protoent +{ + char *p_name; /* Official protocol name. */ + char **p_aliases; /* Alias list. */ + int p_proto; /* Protocol number. */ }; -struct rpcent *getrpcbyname(), *getrpcbynumber(), *getrpcent(); -#endif /* sun */ -#endif /* __GNU_LIBRARY__ */ -#endif /* !_NETDB_H_ */ +/* Open protocol data base files and mark them as staying open even + after a later search if STAY_OPEN is non-zero. */ +extern void setprotoent __P ((int __stay_open)); + +/* Close protocol data base files and clear `stay open' flag. */ +extern void endprotoent __P ((void)); + +/* Get next entry from protocol data base file. Open data base if + necessary. */ +extern struct protoent *getprotoent __P ((void)); + +/* Return entry from protocol data base for network with NAME. */ +extern struct protoent *getprotobyname __P ((__const char *__name)); + +/* Return entry from protocol data base which number is PROTO. */ +extern struct protoent *getprotobynumber __P ((int __proto)); + + +#ifdef __USE_REENTRANT +/* Reentrant versions of the functions above. The additional + arguments specify a buffer of BUFLEN starting at BUF. */ +extern struct protoent *__getprotoent_r __P ((struct protoent *__result_buf, + char *__buf, int __buf_len)); +extern struct protoent *getprotoent_r __P ((struct protoent *__result_buf, + char *__buf, int __buf_len)); + +extern struct protoent *__getprotobyname_r __P ((__const char *__name, + struct protoent *__result_buf, + char *__buf, int __buflen)); +extern struct protoent *getprotobyname_r __P ((__const char *__name, + struct protoent *__result_buf, + char *__buf, int __buflen)); + +extern struct protoent *__getprotobynumber_r __P ((int __proto, + struct protoent *__res_buf, + char *__buf, int __buflen)); +extern struct protoent *getprotobynumber_r __P ((int __proto, + struct protoent *__result_buf, + char *__buf, int __buflen)); +#endif /* reentrant */ + + +__END_DECLS + +#endif /* netdb.h */ |