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