Annotation of src/include/netdb.h, Revision 1.16
1.16 ! millert 1: /* $OpenBSD: netdb.h,v 1.15 2002/02/16 21:27:17 millert 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: /*
1.13 deraadt 59: * Copyright (c) 1995, 1996, 1997, 1998, 1999 Craig Metz. All rights reserved.
60: *
61: * Redistribution and use in source and binary forms, with or without
62: * modification, are permitted provided that the following conditions
63: * are met:
64: * 1. Redistributions of source code must retain the above copyright
65: * notice, this list of conditions and the following disclaimer.
66: * 2. Redistributions in binary form must reproduce the above copyright
67: * notice, this list of conditions and the following disclaimer in the
68: * documentation and/or other materials provided with the distribution.
69: * 3. Neither the name of the author nor the names of any contributors
70: * may be used to endorse or promote products derived from this software
71: * without specific prior written permission.
72: *
73: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
74: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
75: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
76: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
77: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
78: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
79: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
80: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
81: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
82: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
83: * SUCH DAMAGE.
1.5 deraadt 84: */
85:
86: /*
1.2 dm 87: * @(#)netdb.h 8.1 (Berkeley) 6/2/93
1.3 downsj 88: * $From: netdb.h,v 8.7 1996/05/09 05:59:09 vixie Exp $
1.1 deraadt 89: */
90:
91: #ifndef _NETDB_H_
92: #define _NETDB_H_
93:
1.2 dm 94: #include <sys/param.h>
95: #if (!defined(BSD)) || (BSD < 199306)
96: # include <sys/bitypes.h>
97: #endif
98: #include <sys/cdefs.h>
99:
1.1 deraadt 100: #define _PATH_HEQUIV "/etc/hosts.equiv"
101: #define _PATH_HOSTS "/etc/hosts"
102: #define _PATH_NETWORKS "/etc/networks"
103: #define _PATH_PROTOCOLS "/etc/protocols"
104: #define _PATH_SERVICES "/etc/services"
105:
1.2 dm 106: extern int h_errno;
107:
1.1 deraadt 108: /*
109: * Structures returned by network data base library. All addresses are
110: * supplied in host order, and returned in network order (suitable for
111: * use in system calls).
112: */
113: struct hostent {
114: char *h_name; /* official name of host */
115: char **h_aliases; /* alias list */
116: int h_addrtype; /* host address type */
117: int h_length; /* length of address */
118: char **h_addr_list; /* list of addresses from name server */
119: #define h_addr h_addr_list[0] /* address, for backward compatiblity */
120: };
121:
122: /*
123: * Assumption here is that a network number
1.4 millert 124: * fits in an in_addr_t -- probably a poor one.
1.1 deraadt 125: */
126: struct netent {
127: char *n_name; /* official name of net */
128: char **n_aliases; /* alias list */
129: int n_addrtype; /* net address type */
1.4 millert 130: in_addr_t n_net; /* network # */
1.1 deraadt 131: };
132:
133: struct servent {
134: char *s_name; /* official service name */
135: char **s_aliases; /* alias list */
136: int s_port; /* port # */
137: char *s_proto; /* protocol to use */
138: };
139:
140: struct protoent {
141: char *p_name; /* official protocol name */
142: char **p_aliases; /* alias list */
143: int p_proto; /* protocol # */
144: };
145:
146: /*
147: * Error return codes from gethostbyname() and gethostbyaddr()
148: * (left in extern int h_errno).
149: */
150:
1.2 dm 151: #define NETDB_INTERNAL -1 /* see errno */
152: #define NETDB_SUCCESS 0 /* no problem */
1.1 deraadt 153: #define HOST_NOT_FOUND 1 /* Authoritative Answer Host not found */
154: #define TRY_AGAIN 2 /* Non-Authoritive Host not found, or SERVERFAIL */
155: #define NO_RECOVERY 3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */
156: #define NO_DATA 4 /* Valid name, no data record of requested type */
157: #define NO_ADDRESS NO_DATA /* no address, look for MX record */
158:
1.5 deraadt 159: /* Values for getaddrinfo() and getnameinfo() */
160: #define AI_PASSIVE 1 /* socket address is intended for bind() */
161: #define AI_CANONNAME 2 /* request for canonical name */
162: #define AI_NUMERICHOST 4 /* don't ever try nameservice */
1.6 cmetz 163: #define AI_EXT 8 /* enable non-portable extensions */
1.9 itojun 164: /* valid flags for addrinfo */
165: #define AI_MASK (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST)
1.5 deraadt 166:
167: #define NI_NUMERICHOST 1 /* return the host address, not the name */
168: #define NI_NUMERICSERV 2 /* return the service address, not the name */
169: #define NI_NOFQDN 4 /* return a short name if in the local domain */
170: #define NI_NAMEREQD 8 /* fail if either host or service name is unknown */
171: #define NI_DGRAM 16 /* look up datagram service instead of stream */
1.8 itojun 172: #define NI_WITHSCOPEID 32 /* KAME hack: attach scopeid to host portion */
1.5 deraadt 173:
1.7 deraadt 174: #define NI_MAXHOST MAXHOSTNAMELEN /* max host name returned by getnameinfo */
1.5 deraadt 175: #define NI_MAXSERV 32 /* max serv. name length returned by getnameinfo */
176:
1.8 itojun 177: /*
178: * Scope delimit character (KAME hack)
179: */
1.9 itojun 180: #define SCOPE_DELIMITER '%'
1.8 itojun 181:
1.5 deraadt 182: #define EAI_BADFLAGS -1 /* invalid value for ai_flags */
183: #define EAI_NONAME -2 /* name or service is not known */
184: #define EAI_AGAIN -3 /* temporary failure in name resolution */
185: #define EAI_FAIL -4 /* non-recoverable failure in name resolution */
186: #define EAI_NODATA -5 /* no address associated with name */
187: #define EAI_FAMILY -6 /* ai_family not supported */
188: #define EAI_SOCKTYPE -7 /* ai_socktype not supported */
189: #define EAI_SERVICE -8 /* service not supported for ai_socktype */
190: #define EAI_ADDRFAMILY -9 /* address family for name not supported */
191: #define EAI_MEMORY -10 /* memory allocation failure */
192: #define EAI_SYSTEM -11 /* system error (code indicated in errno) */
1.8 itojun 193: #define EAI_BADHINTS -12 /* invalid value for hints */
194: #define EAI_PROTOCOL -13 /* resolved protocol is unknown */
1.5 deraadt 195:
196: struct addrinfo {
197: int ai_flags; /* input flags */
198: int ai_family; /* protocol family for socket */
199: int ai_socktype; /* socket type */
200: int ai_protocol; /* protocol for socket */
1.12 itojun 201: socklen_t ai_addrlen; /* length of socket-address */
1.5 deraadt 202: struct sockaddr *ai_addr; /* socket-address for socket */
203: char *ai_canonname; /* canonical name for service location (iff req) */
204: struct addrinfo *ai_next; /* pointer to next in list */
205: };
206:
1.14 jakob 207: /*
208: * Flags for getrrsetbyname()
209: */
210: #define RRSET_VALIDATED 1
211:
212: /*
213: * Return codes for getrrsetbyname()
214: */
215: #define ERRSET_SUCCESS 0
216: #define ERRSET_NOMEMORY 1
217: #define ERRSET_FAIL 2
218: #define ERRSET_INVAL 3
219: #define ERRSET_NONAME 4
220: #define ERRSET_NODATA 5
221:
222: /*
223: * Structures used by getrrsetbyname() and freerrset()
224: */
225: struct rdatainfo {
226: unsigned int rdi_length; /* length of data */
227: unsigned char *rdi_data; /* record data */
228: };
229:
230: struct rrsetinfo {
231: unsigned int rri_flags; /* RRSET_VALIDATED ... */
232: unsigned int rri_rdclass; /* class number */
233: unsigned int rri_rdtype; /* RR type number */
234: unsigned int rri_ttl; /* time to live */
235: unsigned int rri_nrdatas; /* size of rdatas array */
236: unsigned int rri_nsigs; /* size of sigs array */
237: char *rri_name; /* canonical name */
238: struct rdatainfo *rri_rdatas; /* individual records */
239: struct rdatainfo *rri_sigs; /* individual signatures */
240: };
241:
1.1 deraadt 242: __BEGIN_DECLS
1.15 millert 243: void endhostent(void);
244: void endnetent(void);
245: void endprotoent(void);
246: void endservent(void);
247: struct hostent *gethostbyaddr(const char *, int, int);
248: struct hostent *gethostbyname(const char *);
249: struct hostent *gethostbyname2(const char *, int);
250: struct hostent *gethostent(void);
251: struct netent *getnetbyaddr(in_addr_t, int);
252: struct netent *getnetbyname(const char *);
253: struct netent *getnetent(void);
254: struct protoent *getprotobyname(const char *);
255: struct protoent *getprotobynumber(int);
256: struct protoent *getprotoent(void);
257: struct servent *getservbyname(const char *, const char *);
258: struct servent *getservbyport(int, const char *);
259: struct servent *getservent(void);
260: void herror(const char *);
261: const char *hstrerror(int);
262: void sethostent(int);
263: /* void sethostfile(const char *); */
264: void setnetent(int);
265: void setprotoent(int);
266: void setservent(int);
1.5 deraadt 267:
1.16 ! millert 268: int getaddrinfo(const char *, const char *,
! 269: const struct addrinfo *, struct addrinfo **);
1.15 millert 270: void freeaddrinfo(struct addrinfo *);
1.16 ! millert 271: int getnameinfo(const struct sockaddr *, socklen_t,
! 272: char *, size_t, char *, size_t, int);
1.15 millert 273: char *gai_strerror(int);
274: int net_addrcmp(struct sockaddr *, struct sockaddr *);
1.14 jakob 275: int getrrsetbyname(const char *, unsigned int, unsigned int, unsigned int, struct rrsetinfo **);
276: void freerrset(struct rrsetinfo *);
1.1 deraadt 277: __END_DECLS
1.2 dm 278:
279: /* This is nec'y to make this include file properly replace the sun version. */
280: #ifdef sun
281: #ifdef __GNU_LIBRARY__
282: #include <rpc/netdb.h>
283: #else
284: struct rpcent {
285: char *r_name; /* name of server for this rpc program */
286: char **r_aliases; /* alias list */
287: int r_number; /* rpc program number */
288: };
289: struct rpcent *getrpcbyname(), *getrpcbynumber(), *getrpcent();
290: #endif /* __GNU_LIBRARY__ */
291: #endif /* sun */
1.1 deraadt 292:
293: #endif /* !_NETDB_H_ */
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