1 /* $NetBSD: ntp_rfc2553.h,v 1.5 2020/05/25 20:47:20 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