Subversion Repositories planix.SVN

#ifndef __NETDB_H__
#define __NETDB_H__

#ifndef _BSD_EXTENSION
    This header file is an extension to ANSI/POSIX
#endif

#pragma lib "/$M/lib/ape/libbsd.a"

/*-
 * 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
 */

#ifdef __cplusplus
extern "C" {
#endif

/*
 * 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 # */
};

/* from 4.0 RPCSRC */
struct rpcent {
        char    *r_name;        /* name of server for this rpc program */
        char    **r_aliases;    /* alias list */
        int     r_number;       /* rpc program number */
};

extern struct hostent   *gethostbyname(const char *),
                        *gethostbyaddr(const void *, int, int),
                        *gethostent(void);
extern struct netent    *getnetbyname(const char *),
                        *getnetbyaddr(long, int),
                        *getnetent(void);
extern struct servent   *getservbyname(const char *, const char *),
                        *getservbyport(int, const char *),
                        *getservent(void);
extern struct protoent  *getprotobyname(const char *),
                        *getprotobynumber(int),
                        *getprotoent(void);
extern struct rpcent    *getrpcbyname(const char *), 
                        *getrpcbynumber(int), 
                        *getrpcent(void);
extern void sethostent(int),  endhostent(void),
            setnetent(int),   endnetent(void),
            setservent(int),  endservent(void),
            setprotoent(int), endprotoent(void),
            setrpcent(int),   endrpcent(void);

/*
 * Error return codes from gethostbyname() and gethostbyaddr()
 * (left in extern int h_errno).
 */
extern int h_errno;
extern void herror(const char *);
extern char *hstrerror(int);

#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 */

#define __HOST_SVC_NOT_AVAIL 99         /* libc internal use only */

#ifdef __cplusplus
}
#endif

#endif /* !__NETDB_H__ */