/*++
Copyright (c) 1991 Microsoft Corporation
Module Name:
netdb.h
Abstract:
This contains the #defines for the tcp/ip net database operations
Author:
Sam Patton (sampa) July 26, 1991
Revision History:
when who what
---- --- ----
7-26-91 sampa initial version
--*/
/*-
* Copyright (c) 1980, 1983, 1988 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that: (1) source distributions retain this entire copyright
* notice and comment, and (2) distributions including binaries display
* the following acknowledgement: ``This product includes software
* developed by the University of California, Berkeley and its contributors''
* in the documentation or other materials provided with the distribution
* and in all advertising materials mentioning features or use of this
* software. 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* @(#)netdb.h 5.11 (Berkeley) 5/21/90
*/
#ifndef NETDB_INCLUDED
#define NETDB_INCLUDED
#define _PATH_HEQUIV "/etc/hosts.equiv"
#define _PATH_HOSTS "/etc/hosts"
#define _PATH_NETWORKS "/etc/networks"
#define _PATH_PROTOCOLS "/etc/protocols"
#define _PATH_SERVICES "/etc/services"
/*
* 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 */
};
/*
* Assumption here is that a network number
* fits in 32 bits -- 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 # */
};
//
// Network table access function prototypes
//
struct hostent *
gethostbyname(
char *name
);
struct hostent *
gethostbyaddr(
char *addr,
int len,
int type
);
void
sethostent(
int stayopen
);
void
endhostent(
void
);
struct netent *
getnetent(
void
);
struct netent *
getnetbyaddr(
unsigned long net,
int type
);
struct netent *
getnetbyname(
char *name
);
void
setnetent(
int stayopen
);
void
endnetent(
void
);
struct protoent *
getprotoent(
void
);
struct protoent *
getprotobynumber(
int proto
);
struct protoent *
getprotobyname(
char *name
);
void
setprotoent(
int stayopen
);
void
endprotoent(
void
);
struct servent *
getservent(
void
);
struct servent *
getservbyport(
int port,
char *proto
);
struct servent *
getservbyname(
char *name,
char *proto
);
void
setservent(
int stayopen
);
void
endservent(
void
);
/*
* Error return codes from gethostbyname() and gethostbyaddr()
* (left in extern int h_errno).
*/
#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 */
#endif //NETDB_INCLUDED
