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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License, Version 1.0 only
      6  * (the "License").  You may not use this file except in compliance
      7  * with the License.
      8  *
      9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
     10  * or http://www.opensolaris.org/os/licensing.
     11  * See the License for the specific language governing permissions
     12  * and limitations under the License.
     13  *
     14  * When distributing Covered Code, include this CDDL HEADER in each
     15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     16  * If applicable, add the following below this CDDL HEADER, with the
     17  * fields enclosed by brackets "[]" replaced with your own identifying
     18  * information: Portions Copyright [yyyy] [name of copyright owner]
     19  *
     20  * CDDL HEADER END
     21  */
     22 /*	Copyright (c) 1992 Sun Microsystems, Inc.	*/
     23 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
     24 /*	  All Rights Reserved  	*/
     25 
     26 
     27 /*
     28  * netdir.h
     29  *
     30  * This is the include file that defines various structures and
     31  * constants used by the netdir routines.
     32  */
     33 
     34 #ifndef _NETDIR_H
     35 #define	_NETDIR_H
     36 
     37 #pragma ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.5	*/
     38 
     39 /*
     40  * This files uses struct netconfig, and netconfig.h must be included
     41  * before this to avoid warnings.
     42  */
     43 
     44 #include <netconfig.h>
     45 
     46 #ifdef	__cplusplus
     47 extern "C" {
     48 #endif
     49 
     50 struct nd_addrlist {
     51 	int 		n_cnt;		/* number of netbufs */
     52 	struct netbuf 	*n_addrs;	/* the netbufs */
     53 };
     54 
     55 struct nd_hostservlist {
     56 	int			h_cnt;		/* number of nd_hostservs */
     57 	struct nd_hostserv	*h_hostservs;	/* the entries */
     58 };
     59 
     60 struct nd_hostserv {
     61 	char		*h_host;	/* the host name */
     62 	char		*h_serv;	/* the service name */
     63 };
     64 
     65 struct nd_mergearg {
     66 	char		*s_uaddr;	/* servers universal address */
     67 	char		*c_uaddr;	/* clients universal address */
     68 	char		*m_uaddr;	/* merged universal address */
     69 };
     70 
     71 /*
     72  * _nderror is a private variable to the netdir system.
     73  */
     74 #ifdef _REENTRANT
     75 extern int	*__nderror();
     76 #define	_nderror	(*(__nderror()))
     77 #else
     78 extern int _nderror;
     79 #endif  /* _REENTRANT */
     80 
     81 
     82 #ifdef __STDC__
     83 
     84 int netdir_options(struct netconfig *, int option, int fd, char *par);
     85 int netdir_getbyname(struct netconfig *, struct nd_hostserv *,
     86     struct nd_addrlist **);
     87 int netdir_getbyaddr(struct netconfig *, struct nd_hostservlist **,
     88     struct netbuf *);
     89 int __netdir_getbyaddr_nosrv(struct netconfig *, struct nd_hostservlist **,
     90     struct netbuf *);
     91 int netdir_mergeaddr(struct netconfig *, char **muaddr, char *uaddr,
     92     char *ruaddr);
     93 void netdir_free(void *, int);
     94 struct netbuf *uaddr2taddr(struct netconfig *, char *);
     95 char *taddr2uaddr(struct netconfig *, struct netbuf *);
     96 void netdir_perror(char *);
     97 char *netdir_sperror();
     98 struct nd_addrlist *_netdir_getbyname(struct netconfig *, struct nd_hostserv *);
     99 struct nd_hostservlist *_netdir_getbyaddr(struct netconfig *, struct netbuf *);
    100 struct netbuf *_uaddr2taddr(struct netconfig *, char *);
    101 char *_taddr2uaddr(struct netconfig *, struct netbuf *);
    102 char *_netdir_mergeaddr(struct netconfig *, char *uaddr, char *ruaddr);
    103 
    104 #else	/* __STDC__ */
    105 
    106 int netdir_options();
    107 int netdir_getbyname();
    108 int netdir_getbyaddr();
    109 int netdir_mergeaddr();
    110 void netdir_free();
    111 struct netbuf *uaddr2taddr();
    112 void netdir_perror();
    113 char *netdir_sperror();
    114 char *taddr2uaddr();
    115 struct nd_addrlist *_netdir_getbyname();
    116 struct nd_hostservlist *_netdir_getbyaddr();
    117 char *_netdir_mergeaddr();
    118 struct netbuf *_uaddr2taddr();
    119 char *_taddr2uaddr();
    120 
    121 #endif	/* __STDC__ */
    122 
    123 /*
    124  * These are all objects that can be freed by netdir_free
    125  */
    126 #define	ND_HOSTSERV	0
    127 #define	ND_HOSTSERVLIST	1
    128 #define	ND_ADDR		2
    129 #define	ND_ADDRLIST	3
    130 
    131 /*
    132  * These are the various errors that can be encountered while attempting
    133  * to translate names to addresses. Note that none of them (except maybe
    134  * no memory) are truely fatal unless the ntoa deamon is on its last attempt
    135  * to translate the name. First four errors are to failitate return values
    136  * from DNS, that are used by mail and others.
    137  *
    138  * Negative errors terminate the search resolution process, positive errors
    139  * are treated as warnings.
    140  */
    141 
    142 #define	ND_TRY_AGAIN	-5	/* Non-Authoritive Host not found, or */
    143 				/* SERVERFAIL */
    144 #define	ND_NO_RECOVERY	-4	/* Non recoverable errors, FORMERR, REFUSED, */
    145 				/* NOTIMP */
    146 #define	ND_NO_DATA	-3	/* Valid name, no data record of requested */
    147 				/* type */
    148 #define	ND_NO_ADDRESS ND_NO_DATA /* no address, look for MX record */
    149 #define	ND_BADARG	-2	/* Bad arguments passed 	*/
    150 #define	ND_NOMEM 	-1	/* No virtual memory left	*/
    151 #define	ND_OK		0	/* Translation successful	*/
    152 #define	ND_NOHOST	1	/* Hostname was not resolvable	*/
    153 #define	ND_NOSERV	2	/* Service was unknown		*/
    154 #define	ND_NOSYM	3	/* Couldn't resolve symbol	*/
    155 #define	ND_OPEN		4	/* File couldn't be opened	*/
    156 #define	ND_ACCESS	5	/* File is not accessable	*/
    157 #define	ND_UKNWN	6	/* Unknown object to be freed	*/
    158 #define	ND_NOCTRL	7	/* Unknown option passed to netdir_options */
    159 #define	ND_FAILCTRL	8	/* Option failed in netdir_options */
    160 #define	ND_SYSTEM	9	/* Other System error		*/
    161 
    162 /*
    163  * The following netdir_options commands can be given to the fd. These is
    164  * a way of providing for any transport specific action which the caller
    165  * may want to initiate on his transport. It is up to the trasport provider
    166  * to support the netdir_options he wants to support.
    167  */
    168 
    169 #define	ND_SET_BROADCAST	1	/* Do t_optmgmt to support broadcast */
    170 #define	ND_SET_RESERVEDPORT	2	/* bind it to reserve address */
    171 #define	ND_CHECK_RESERVEDPORT	3	/* check if address is reserved */
    172 #define	ND_MERGEADDR		4	/* Merge universal address */
    173 
    174 /*
    175  *	The following special case host names are used to give the underlying
    176  *	transport provides a clue as to the intent of the request.
    177  */
    178 
    179 #define	HOST_SELF	"\\1"
    180 #define	HOST_ANY	"\\2"
    181 #define	HOST_BROADCAST	"\\3"
    182 #define	HOST_SELF_BIND	HOST_SELF
    183 #define	HOST_SELF_CONNECT	"\\4"
    184 
    185 #ifdef	__cplusplus
    186 }
    187 #endif
    188 
    189 #endif	/* _NETDIR_H */
    190