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ARM Club 3
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netlib_1
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!NetLib
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h
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netdb
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1995-08-19
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155 lines
/*-
* Copyright (c) 1980, 1983, 1988 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.
*
* @(#)netdb.h 5.15 (Berkeley) 4/3/91
*/
#ifndef __netdb_h
#define __netdb_h
/* Freenet programmers interface - netdb.h - edited by andy 23/5/95 */
#include "sys/types.h"
/*
* Maximum length of a hostname
*/
#define MAXHOSTNAMELEN 256
/*
* 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 */
};
/*
* Structure describing a network entry
*/
struct netent {
char *n_name; /* Official name of this network */
char **n_aliases; /* Alternative names for network */
int n_addrtype; /* Network address type */
u_long n_net; /* Network number */
};
/*
* Structure describing a service entry
*/
struct servent {
char *s_name; /* Official name of service */
char **s_aliases; /* Alternative names for service */
int s_port; /* Port number to use */
char *s_proto; /* Protocol to use */
};
/*
* Structure describing a protocol entry
*/
struct protoent {
char *p_name; /* Official protocol name */
char **p_aliases; /* Alternative names for protocol */
int p_proto; /* Protocol number */
};
struct rpcent {
char *r_name; /* name of server for this rpc program */
char **r_aliases; /* alias list */
int r_number; /* rpc program number */
};
/*
* 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-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 */
/*
* Routines to fetch host entries
*/
extern int sethostent(int /*stayopen*/);
extern struct hostent *gethostent(void);
extern int endhostent(void);
extern struct hostent *gethostbyname(const char */*name*/);
extern struct hostent *gethostbyaddr(const char */*addr*/, int /*len*/, int /*type*/);
/*
* Routines to fetch network entries
*/
extern int setnetent(int /*stayopen*/);
extern struct netent *getnetent(void);
extern int endnetent(void);
extern struct netent *getnetbyname(const char */*name*/);
extern struct netent *getnetbyaddr(long /*net*/, int /*type*/);
/*
* Routines to fetch service entries
*/
extern int setservent(int /*stayopen*/);
extern struct servent *getservent(void);
extern int endservent(void);
extern struct servent *getservbyname(const char */*name*/, const char */*proto*/);
extern struct servent *getservbyport(int /*port*/, const char */*proto*/);
/*
* Routines to fetch protocol entries
*/
extern int setprotoent(int /*stayopen*/);
extern struct protoent *getprotoent(void);
extern int endprotoent(void);
extern struct protoent *getprotobyname(const char */*name*/);
extern struct protoent *getprotobynumber(int /*proto*/);
/*
* Routines to fetch rpc entries - coming soon..
*/
extern int setrpcent(int /*stayopen*/);
extern struct rpcent *getrpcent(void);
extern int endrpcent(void);
extern struct rpcent *getrpcbyname(const char */*name*/);
extern struct rpcent *getrpcbynumber(int /*proto*/);
#endif