Annotation of src/include/netdb.h, Revision 1.7
1.7 ! deraadt 1: /* $OpenBSD: netdb.h,v 1.6 1999/06/23 21:55:29 cmetz Exp $ */
1.3 downsj 2:
1.2 dm 3: /*
4: * ++Copyright++ 1980, 1983, 1988, 1993
5: * -
6: * Copyright (c) 1980, 1983, 1988, 1993
7: * The Regents of the University of California. All rights reserved.
1.1 deraadt 8: *
9: * Redistribution and use in source and binary forms, with or without
10: * modification, are permitted provided that the following conditions
11: * are met:
12: * 1. Redistributions of source code must retain the above copyright
13: * notice, this list of conditions and the following disclaimer.
14: * 2. Redistributions in binary form must reproduce the above copyright
15: * notice, this list of conditions and the following disclaimer in the
16: * documentation and/or other materials provided with the distribution.
17: * 3. All advertising materials mentioning features or use of this software
18: * must display the following acknowledgement:
19: * This product includes software developed by the University of
20: * California, Berkeley and its contributors.
21: * 4. Neither the name of the University nor the names of its contributors
22: * may be used to endorse or promote products derived from this software
23: * without specific prior written permission.
24: *
25: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35: * SUCH DAMAGE.
1.2 dm 36: * -
37: * Portions Copyright (c) 1993 by Digital Equipment Corporation.
1.1 deraadt 38: *
1.2 dm 39: * Permission to use, copy, modify, and distribute this software for any
40: * purpose with or without fee is hereby granted, provided that the above
41: * copyright notice and this permission notice appear in all copies, and that
42: * the name of Digital Equipment Corporation not be used in advertising or
43: * publicity pertaining to distribution of the document or software without
44: * specific, written prior permission.
45: *
46: * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
47: * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
48: * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
49: * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
50: * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
51: * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
52: * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
53: * SOFTWARE.
54: * -
55: * --Copyright--
56: */
57:
58: /*
1.5 deraadt 59: * %%% portions-copyright-cmetz-96
60: * Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
61: * Reserved. The Inner Net License Version 2 applies to these portions of
62: * the software.
63: * You should have received a copy of the license with this software. If
64: * you didn't get a copy, you may request one from <license@inner.net>.
65: */
66:
67: /*
1.2 dm 68: * @(#)netdb.h 8.1 (Berkeley) 6/2/93
1.3 downsj 69: * $From: netdb.h,v 8.7 1996/05/09 05:59:09 vixie Exp $
1.1 deraadt 70: */
71:
72: #ifndef _NETDB_H_
73: #define _NETDB_H_
74:
1.2 dm 75: #include <sys/param.h>
76: #if (!defined(BSD)) || (BSD < 199306)
77: # include <sys/bitypes.h>
78: #endif
79: #include <sys/cdefs.h>
80:
1.1 deraadt 81: #define _PATH_HEQUIV "/etc/hosts.equiv"
82: #define _PATH_HOSTS "/etc/hosts"
83: #define _PATH_NETWORKS "/etc/networks"
84: #define _PATH_PROTOCOLS "/etc/protocols"
85: #define _PATH_SERVICES "/etc/services"
86:
1.2 dm 87: extern int h_errno;
88:
1.1 deraadt 89: /*
90: * Structures returned by network data base library. All addresses are
91: * supplied in host order, and returned in network order (suitable for
92: * use in system calls).
93: */
94: struct hostent {
95: char *h_name; /* official name of host */
96: char **h_aliases; /* alias list */
97: int h_addrtype; /* host address type */
98: int h_length; /* length of address */
99: char **h_addr_list; /* list of addresses from name server */
100: #define h_addr h_addr_list[0] /* address, for backward compatiblity */
101: };
102:
103: /*
104: * Assumption here is that a network number
1.4 millert 105: * fits in an in_addr_t -- probably a poor one.
1.1 deraadt 106: */
107: struct netent {
108: char *n_name; /* official name of net */
109: char **n_aliases; /* alias list */
110: int n_addrtype; /* net address type */
1.4 millert 111: in_addr_t n_net; /* network # */
1.1 deraadt 112: };
113:
114: struct servent {
115: char *s_name; /* official service name */
116: char **s_aliases; /* alias list */
117: int s_port; /* port # */
118: char *s_proto; /* protocol to use */
119: };
120:
121: struct protoent {
122: char *p_name; /* official protocol name */
123: char **p_aliases; /* alias list */
124: int p_proto; /* protocol # */
125: };
126:
127: /*
128: * Error return codes from gethostbyname() and gethostbyaddr()
129: * (left in extern int h_errno).
130: */
131:
1.2 dm 132: #define NETDB_INTERNAL -1 /* see errno */
133: #define NETDB_SUCCESS 0 /* no problem */
1.1 deraadt 134: #define HOST_NOT_FOUND 1 /* Authoritative Answer Host not found */
135: #define TRY_AGAIN 2 /* Non-Authoritive Host not found, or SERVERFAIL */
136: #define NO_RECOVERY 3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */
137: #define NO_DATA 4 /* Valid name, no data record of requested type */
138: #define NO_ADDRESS NO_DATA /* no address, look for MX record */
139:
1.5 deraadt 140: /* Values for getaddrinfo() and getnameinfo() */
141: #define AI_PASSIVE 1 /* socket address is intended for bind() */
142: #define AI_CANONNAME 2 /* request for canonical name */
143: #define AI_NUMERICHOST 4 /* don't ever try nameservice */
1.6 cmetz 144: #define AI_EXT 8 /* enable non-portable extensions */
1.5 deraadt 145:
146: #define NI_NUMERICHOST 1 /* return the host address, not the name */
147: #define NI_NUMERICSERV 2 /* return the service address, not the name */
148: #define NI_NOFQDN 4 /* return a short name if in the local domain */
149: #define NI_NAMEREQD 8 /* fail if either host or service name is unknown */
150: #define NI_DGRAM 16 /* look up datagram service instead of stream */
151:
1.7 ! deraadt 152: #define NI_MAXHOST MAXHOSTNAMELEN /* max host name returned by getnameinfo */
1.5 deraadt 153: #define NI_MAXSERV 32 /* max serv. name length returned by getnameinfo */
154:
155: #define EAI_BADFLAGS -1 /* invalid value for ai_flags */
156: #define EAI_NONAME -2 /* name or service is not known */
157: #define EAI_AGAIN -3 /* temporary failure in name resolution */
158: #define EAI_FAIL -4 /* non-recoverable failure in name resolution */
159: #define EAI_NODATA -5 /* no address associated with name */
160: #define EAI_FAMILY -6 /* ai_family not supported */
161: #define EAI_SOCKTYPE -7 /* ai_socktype not supported */
162: #define EAI_SERVICE -8 /* service not supported for ai_socktype */
163: #define EAI_ADDRFAMILY -9 /* address family for name not supported */
164: #define EAI_MEMORY -10 /* memory allocation failure */
165: #define EAI_SYSTEM -11 /* system error (code indicated in errno) */
166:
167: struct addrinfo {
168: int ai_flags; /* input flags */
169: int ai_family; /* protocol family for socket */
170: int ai_socktype; /* socket type */
171: int ai_protocol; /* protocol for socket */
172: int ai_addrlen; /* length of socket-address */
173: struct sockaddr *ai_addr; /* socket-address for socket */
174: char *ai_canonname; /* canonical name for service location (iff req) */
175: struct addrinfo *ai_next; /* pointer to next in list */
176: };
177:
1.1 deraadt 178: __BEGIN_DECLS
179: void endhostent __P((void));
180: void endnetent __P((void));
181: void endprotoent __P((void));
182: void endservent __P((void));
183: struct hostent *gethostbyaddr __P((const char *, int, int));
184: struct hostent *gethostbyname __P((const char *));
1.2 dm 185: struct hostent *gethostbyname2 __P((const char *, int));
1.1 deraadt 186: struct hostent *gethostent __P((void));
1.4 millert 187: struct netent *getnetbyaddr __P((in_addr_t, int));
1.1 deraadt 188: struct netent *getnetbyname __P((const char *));
189: struct netent *getnetent __P((void));
190: struct protoent *getprotobyname __P((const char *));
191: struct protoent *getprotobynumber __P((int));
192: struct protoent *getprotoent __P((void));
193: struct servent *getservbyname __P((const char *, const char *));
194: struct servent *getservbyport __P((int, const char *));
195: struct servent *getservent __P((void));
196: void herror __P((const char *));
1.2 dm 197: const char *hstrerror __P((int));
1.1 deraadt 198: void sethostent __P((int));
199: /* void sethostfile __P((const char *)); */
200: void setnetent __P((int));
201: void setprotoent __P((int));
202: void setservent __P((int));
1.5 deraadt 203:
204: int getaddrinfo __P((const char *name, const char *service,
205: const struct addrinfo *req, struct addrinfo **pai));
206: void freeaddrinfo __P((struct addrinfo *ai));
207: int getnameinfo __P((const struct sockaddr *sa, size_t addrlen,
208: char *host, size_t hostlen, char *serv, size_t servlen,
209: int flags));
210: char *gai_strerror __P((int ecode));
1.7 ! deraadt 211: int net_addrcmp __P((struct sockaddr *, struct sockaddr *));
1.1 deraadt 212: __END_DECLS
1.2 dm 213:
214: /* This is nec'y to make this include file properly replace the sun version. */
215: #ifdef sun
216: #ifdef __GNU_LIBRARY__
217: #include <rpc/netdb.h>
218: #else
219: struct rpcent {
220: char *r_name; /* name of server for this rpc program */
221: char **r_aliases; /* alias list */
222: int r_number; /* rpc program number */
223: };
224: struct rpcent *getrpcbyname(), *getrpcbynumber(), *getrpcent();
225: #endif /* __GNU_LIBRARY__ */
226: #endif /* sun */
1.1 deraadt 227:
228: #endif /* !_NETDB_H_ */
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