xref: /titanic_52/usr/src/lib/libbc/inc/include/netdb.h (revision f6e214c7418f43af38bd8c3a557e3d0a1d311cfa)
1 /*
2  * Copyright (c) 1980,1983,1988 Regents of the University of California.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms are permitted
6  * provided that this notice is preserved and that due credit is given
7  * to the University of California at Berkeley. The name of the University
8  * may not be used to endorse or promote products derived from this
9  * software without specific prior written permission. This software
10  * is provided ``as is'' without express or implied warranty.
11  */
12 
13 /*
14  * Structures returned by network data base library.
15  * All addresses are supplied in host order, and
16  * returned in network order (suitable for use in system calls).
17  */
18 
19 #ifndef _netdb_h
20 #define _netdb_h
21 
22 /*	from UCB 5.9 4/5/88	*/
23 
24 #pragma ident	"%Z%%M%	%I%	%E% SMI"
25 
26 #define _PATH_HEQUIV	"/etc/hosts.equiv"
27 #define _PATH_HOSTS	"/etc/hosts"
28 #define _PATH_NETWORKS	"/etc/networks"
29 #define _PATH_PROTOCOLS	"/etc/protocols"
30 #define _PATH_SERVICES	"/etc/services"
31 
32 struct	hostent {
33 	char	*h_name;	/* official name of host */
34 	char	**h_aliases;	/* alias list */
35 	int	h_addrtype;	/* host address type */
36 	int	h_length;	/* length of address */
37 	char	**h_addr_list;	/* list of addresses from name server */
38 #define	h_addr	h_addr_list[0]	/* address, for backward compatiblity */
39 };
40 
41 /*
42  * Assumption here is that a network number
43  * fits in 32 bits -- probably a poor one.
44  */
45 struct	netent {
46 	char		*n_name;	/* official name of net */
47 	char		**n_aliases;	/* alias list */
48 	int		n_addrtype;	/* net address type */
49 	unsigned long	n_net;		/* network # */
50 };
51 
52 struct	servent {
53 	char	*s_name;	/* official service name */
54 	char	**s_aliases;	/* alias list */
55 	int	s_port;		/* port # */
56 	char	*s_proto;	/* protocol to use */
57 };
58 
59 struct	protoent {
60 	char	*p_name;	/* official protocol name */
61 	char	**p_aliases;	/* alias list */
62 	int	p_proto;	/* protocol # */
63 };
64 
65 struct rpcent {
66 	char	*r_name;	/* name of server for this rpc program */
67 	char	**r_aliases;	/* alias list */
68 	int	r_number;	/* rpc program number */
69 };
70 
71 struct hostent	*gethostbyname(), *gethostbyaddr(), *gethostent();
72 struct netent	*getnetbyname(), *getnetbyaddr(), *getnetent();
73 struct servent	*getservbyname(), *getservbyport(), *getservent();
74 struct protoent	*getprotobyname(), *getprotobynumber(), *getprotoent();
75 struct rpcent	*getrpcbyname(), *getrpcbynumber(), *getrpcent();
76 
77 /*
78  * Error return codes from gethostbyname() and gethostbyaddr()
79  * (when using the resolver)
80  */
81 
82 extern  int h_errno;
83 
84 #define	HOST_NOT_FOUND	1 /* Authoritive Answer Host not found */
85 #define	TRY_AGAIN	2 /* Non-Authoritive Host not found, or SERVERFAIL */
86 #define	NO_RECOVERY	3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */
87 #define	NO_DATA		4 /* Valid name, no data record of requested type */
88 #define	NO_ADDRESS	NO_DATA		/* no address, look for MX record */
89 
90 #define MAXALIASES	35
91 #define MAXADDRS	35
92 
93 #endif /*!_netdb_h*/
94