ntp_rfc2553.h revision 1.1.1.3 1 /* $NetBSD: ntp_rfc2553.h,v 1.1.1.3 2013/12/27 23:30:45 christos Exp $ */
2
3 /*
4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the project nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 /*
33 * Copyright (c) 1982, 1986, 1990, 1993
34 * The Regents of the University of California. All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 * 3. All advertising materials mentioning features or use of this software
45 * must display the following acknowledgement:
46 * This product includes software developed by the University of
47 * California, Berkeley and its contributors.
48 * 4. Neither the name of the University nor the names of its contributors
49 * may be used to endorse or promote products derived from this software
50 * without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
62 * SUCH DAMAGE.
63 *
64 * @(#)in.h 8.3 (Berkeley) 1/3/94
65 */
66
67 /*
68 * Compatability shims with the rfc2553 API to simplify ntp.
69 */
70 #ifndef NTP_RFC2553_H
71 #define NTP_RFC2553_H
72
73 #include <netdb.h>
74 #include <isc/net.h>
75
76 #include "ntp_types.h"
77 #include "ntp_malloc.h"
78
79 struct addrinfo *copy_addrinfo_impl(const struct addrinfo *
80 #ifdef EREALLOC_CALLSITE /* from ntp_malloc.h */
81 ,
82 const char *, int
83 #endif
84 );
85 struct addrinfo *copy_addrinfo_list_impl(const struct addrinfo *
86 #ifdef EREALLOC_CALLSITE /* from ntp_malloc.h */
87 ,
88 const char *, int
89 #endif
90 );
91 #ifdef EREALLOC_CALLSITE
92 # define copy_addrinfo(l) \
93 copy_addrinfo_impl((l), __FILE__, __LINE__)
94 # define copy_addrinfo_list(l) \
95 copy_addrinfo_list_impl((l), __FILE__, __LINE__)
96 #else
97 # define copy_addrinfo(l) copy_addrinfo_impl(l)
98 # define copy_addrinfo_list(l) copy_addrinfo_list_impl(l)
99 #endif
100
101 /*
102 * If various macros are not defined we need to define them
103 */
104
105 #ifndef AF_INET6
106 # define AF_INET6 AF_MAX
107 # define PF_INET6 AF_INET6
108 #endif
109
110 #if !defined(_SS_MAXSIZE) && !defined(_SS_ALIGNSIZE)
111
112 # define _SS_MAXSIZE 128
113 # define _SS_ALIGNSIZE (sizeof(ntp_uint64_t))
114 # ifdef ISC_PLATFORM_HAVESALEN
115 # define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof(u_char) - sizeof(ntp_u_int8_t))
116 # define _SS_PAD2SIZE (_SS_MAXSIZE - sizeof(u_char) - sizeof(ntp_u_int8_t) - \
117 _SS_PAD1SIZE - _SS_ALIGNSIZE)
118 # else
119 # define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof(short))
120 # define _SS_PAD2SIZE (_SS_MAXSIZE - sizeof(short) - \
121 _SS_PAD1SIZE - _SS_ALIGNSIZE)
122 # endif /* ISC_PLATFORM_HAVESALEN */
123 #endif
124
125 #ifndef INET6_ADDRSTRLEN
126 # define INET6_ADDRSTRLEN 46 /* max len of IPv6 addr in ascii */
127 #endif
128
129 /*
130 * If we don't have the sockaddr_storage structure
131 * we need to define it
132 */
133
134 #ifndef HAVE_STRUCT_SOCKADDR_STORAGE
135 struct sockaddr_storage {
136 #ifdef ISC_PLATFORM_HAVESALEN
137 ntp_u_int8_t ss_len; /* address length */
138 ntp_u_int8_t ss_family; /* address family */
139 #else
140 short ss_family; /* address family */
141 #endif
142 char __ss_pad1[_SS_PAD1SIZE];
143 ntp_uint64_t __ss_align; /* force desired structure storage alignment */
144 char __ss_pad2[_SS_PAD2SIZE];
145 };
146 #endif
147
148 /*
149 * Finally if the platform doesn't support IPv6 we need some
150 * additional definitions
151 */
152
153 /*
154 * Flag values for getaddrinfo()
155 */
156 #ifndef AI_PASSIVE
157 #define AI_PASSIVE 0x00000001 /* get address to use bind() */
158 #define AI_CANONNAME 0x00000002 /* fill ai_canonname */
159 #define AI_NUMERICHOST 0x00000004 /* prevent name resolution */
160 /* valid flags for addrinfo */
161 #define AI_MASK \
162 (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_ADDRCONFIG)
163
164 #define AI_ADDRCONFIG 0x00000400 /* only if any address is assigned */
165 #endif /* !AI_PASSIVE */
166
167 #ifndef AI_NUMERICHOST /* such as AIX 4.3 */
168 # define Z_AI_NUMERICHOST 0
169 #else
170 # define Z_AI_NUMERICHOST AI_NUMERICHOST
171 #endif
172
173 #ifndef AI_NUMERICSERV /* not in RFC 2553 */
174 # define Z_AI_NUMERICSERV 0
175 #else
176 # define Z_AI_NUMERICSERV AI_NUMERICSERV
177 #endif
178
179 #ifndef ISC_PLATFORM_HAVEIPV6
180
181 #ifdef SYS_WINNT
182 # define in6_addr in_addr6
183 #endif
184
185 struct addrinfo {
186 int ai_flags; /* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */
187 int ai_family; /* PF_xxx */
188 int ai_socktype; /* SOCK_xxx */
189 int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */
190 size_t ai_addrlen; /* length of ai_addr */
191 char *ai_canonname; /* canonical name for hostname */
192 struct sockaddr *ai_addr; /* binary address */
193 struct addrinfo *ai_next; /* next structure in linked list */
194 };
195
196 /*
197 * Error return codes from getaddrinfo()
198 */
199 #define EAI_ADDRFAMILY 1 /* address family for hostname not supported */
200 #define EAI_AGAIN 2 /* temporary failure in name resolution */
201 #define EAI_BADFLAGS 3 /* invalid value for ai_flags */
202 #define EAI_FAIL 4 /* non-recoverable failure in name resolution */
203 #define EAI_FAMILY 5 /* ai_family not supported */
204 #define EAI_MEMORY 6 /* memory allocation failure */
205 #define EAI_NODATA 7 /* no address associated with hostname */
206 #define EAI_NONAME 8 /* hostname nor servname provided, or not known */
207 #define EAI_SERVICE 9 /* servname not supported for ai_socktype */
208 #define EAI_SOCKTYPE 10 /* ai_socktype not supported */
209 #define EAI_SYSTEM 11 /* system error returned in errno */
210 #define EAI_BADHINTS 12
211 #define EAI_PROTOCOL 13
212 #define EAI_MAX 14
213
214
215 int getaddrinfo (const char *, const char *,
216 const struct addrinfo *, struct addrinfo **);
217 int getnameinfo (const struct sockaddr *, u_int, char *,
218 size_t, char *, size_t, int);
219 void freeaddrinfo (struct addrinfo *);
220 char *gai_strerror (int);
221
222 /*
223 * Constants for getnameinfo()
224 */
225 #ifndef NI_MAXHOST
226 #define NI_MAXHOST 1025
227 #define NI_MAXSERV 32
228 #endif
229
230 /*
231 * Flag values for getnameinfo()
232 */
233 #ifndef NI_NUMERICHOST
234 #define NI_NOFQDN 0x00000001
235 #define NI_NUMERICHOST 0x00000002
236 #define NI_NAMEREQD 0x00000004
237 #define NI_NUMERICSERV 0x00000008
238 #define NI_DGRAM 0x00000010
239 #define NI_WITHSCOPEID 0x00000020
240 #endif
241
242 #endif /* !ISC_PLATFORM_HAVEIPV6 */
243
244 /*
245 * Set up some macros to look for IPv6 and IPv6 multicast
246 */
247
248 #if defined(ISC_PLATFORM_HAVEIPV6) && defined(WANT_IPV6)
249 # define INCLUDE_IPV6_SUPPORT
250 # if defined(IPV6_JOIN_GROUP) && defined(IPV6_LEAVE_GROUP)
251 # define INCLUDE_IPV6_MULTICAST_SUPPORT
252 # endif /* IPV6 Multicast Support */
253 #endif /* IPv6 Support */
254
255 #endif /* !NTP_RFC2553_H */
256