source: trunk/src/emx/include/netdb.h@ 18

/*- Modified for emx by hv and em 1994-1997
 *
 * 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.
 *
 *      from: @(#)netdb.h       5.15 (Berkeley) 4/3/91
 *      netdb.h,v 1.1 2003/04/16 15:53:07 bird Exp
 */

#ifndef _NETDB_H_
#define _NETDB_H_

#if defined (__cplusplus)
extern "C" {
#endif

#ifndef _EMX_TCPIP
#define _EMX_TCPIP
#endif

#ifdef __RSXNT__    /* convert some int values to short */
#define __INT_T short
#pragma pack(1)
#else /* emx */
#define __INT_T int
#endif

extern int h_errno;

#define _PATH_HEQUIV    "/tcpip/etc/hosts.equiv"
#define _PATH_HOSTS     "/tcpip/etc/hosts"
#define _PATH_NETWORKS  "/tcpip/etc/networks"
#define _PATH_PROTOCOLS "/tcpip/etc/protocols"
#define _PATH_SERVICES  "/tcpip/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_T h_addrtype;     /* host address type */
        __INT_T 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_T         n_addrtype;     /* net address type */
        unsigned long   n_net;          /* network # */
};

struct  servent {
        char    *s_name;        /* official service name */
        char    **s_aliases;    /* alias list */
        __INT_T s_port;         /* port # */
        char    *s_proto;       /* protocol to use */
};

struct  protoent {
        char    *p_name;        /* official protocol name */
        char    **p_aliases;    /* alias list */
        __INT_T p_proto;        /* protocol # */
};

/*
 * Error return codes from gethostbyname() and gethostbyaddr()
 * (left in extern int h_errno).
 */
#if 0
#define h_errno (tcp_h_errno()) /* thread safe */
#endif
#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 */

int             gethostname (char *, int);
void            endhostent (void);
void            endnetent (void);
void            endprotoent (void);
void            endservent (void);
struct hostent  *gethostbyaddr (__const__ char *, int, int);
struct hostent  *gethostbyname (__const__ char *);
struct hostent  *gethostent (void);
struct netent   *getnetbyaddr (u_long, int);
struct netent   *getnetbyname (__const__ char *);
struct netent   *getnetent (void);
struct protoent *getprotobyname (__const__ char *);
struct protoent *getprotobynumber (int);
struct protoent *getprotoent (void);
struct servent  *getservbyname (__const__ char *, __const__ char *);
struct servent  *getservbyport (int, __const__ char *);
struct servent  *getservent (void);
void            herror (__const__ char *);
void            sethostent (int);
void            setnetent (int);
void            setprotoent (int);
void            setservent (int);

#ifdef NETDB_IBM_ADDENDUM

/* IBM addendum structures and functions */
#define _HOSTBUFSIZE    (4096+1)
#define _MAXADDRS       35
#define _MAXALIASES     35
#define _MAXLINELEN     1024

/* this is the internally used data structure to which pointers of 
 * struct hostent ponit to, after gethostbyname_r/gethostbyaddr_r were
 * called. ATTENTION EMX: The component _opaque_ is a pointer to a data
 * structure which is not accessible by EMX
 */
struct hostent_data {
        struct in_addr  host_addr;              /* host address pointer */
        char    *h_addr_ptrs[_MAXADDRS+1];      /* host address */
        char    hostaddr[_MAXADDRS];
        char    hostbuf[_HOSTBUFSIZE+1];        /* host data */
        char    *host_aliases[_MAXALIASES];
        char    *host_addrs[2];
        void    *_opaque_;                      /* EMX: dead component! */
        int     stayopen;                       /* AIX addon */
        u_long  host_addresses[_MAXADDRS];      /* Actual Addresses. */
};                                              

struct servent_data {
        void    *_opaque_;
        char    line[_MAXLINELEN];
        char    *serv_aliases[_MAXALIASES];
        int     _serv_stayopen;
};

int gethostbyname_r(char*, struct hostent*, struct hostent_data*);
int gethostbyaddr_r(char*, int, int, struct hostent*, struct hostent_data*);
int getservbyname_r(char*, char*, struct servent*, struct servent_data*);
struct hostent *_gethtbyname(char*);
struct hostent *_gethtbyaddr(char*, int, int);
int tcp_h_errno(void);  /* thread safe h_errno */

#endif /* NETDB_IBM_ADDENDUM */

#ifdef __RSXNT__
#pragma pack()
#endif
#undef __INT_T

#if defined (__cplusplus)
}
#endif

#endif /* !_NETDB_H_ */