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#include <netdb.h> 72#include <isc/net.h> 73 74#include "ntp_types.h" 75#include "ntp_malloc.h" 76 77struct addrinfo *copy_addrinfo_impl(const struct addrinfo * 78#ifdef EREALLOC_CALLSITE /* from ntp_malloc.h */ 79 , 80 const char *, int 81#endif 82 ); 83struct addrinfo *copy_addrinfo_list_impl(const struct addrinfo * 84#ifdef EREALLOC_CALLSITE /* from ntp_malloc.h */ 85 , 86 const char *, int 87#endif 88 ); 89#ifdef EREALLOC_CALLSITE 90# define copy_addrinfo(l) \ 91 copy_addrinfo_impl((l), __FILE__, __LINE__) 92# define copy_addrinfo_list(l) \ 93 copy_addrinfo_list_impl((l), __FILE__, __LINE__) 94#else 95# define copy_addrinfo(l) copy_addrinfo_impl(l) 96# define copy_addrinfo_list(l) copy_addrinfo_list_impl(l) 97#endif 98 99/* 100 * If various macros are not defined we need to define them 101 */ 102 103#ifndef AF_INET6 104# define AF_INET6 AF_MAX 105# define PF_INET6 AF_INET6 106#endif 107 108#if !defined(_SS_MAXSIZE) && !defined(_SS_ALIGNSIZE) 109 110# define _SS_MAXSIZE 128 111# define _SS_ALIGNSIZE (sizeof(ntp_uint64_t)) 112# ifdef ISC_PLATFORM_HAVESALEN 113# define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof(u_char) - sizeof(ntp_u_int8_t)) 114# define _SS_PAD2SIZE (_SS_MAXSIZE - sizeof(u_char) - sizeof(ntp_u_int8_t) - \ 115 _SS_PAD1SIZE - _SS_ALIGNSIZE) 116# else 117# define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof(short)) 118# define _SS_PAD2SIZE (_SS_MAXSIZE - sizeof(short) - \ 119 _SS_PAD1SIZE - _SS_ALIGNSIZE) 120# endif /* ISC_PLATFORM_HAVESALEN */ 121#endif 122 123#ifndef INET6_ADDRSTRLEN 124# define INET6_ADDRSTRLEN 46 /* max len of IPv6 addr in ascii */ 125#endif 126 127/* 128 * If we don't have the sockaddr_storage structure 129 * we need to define it 130 */ 131 132#ifndef HAVE_STRUCT_SOCKADDR_STORAGE 133struct sockaddr_storage { 134#ifdef ISC_PLATFORM_HAVESALEN 135 ntp_u_int8_t ss_len; /* address length */ 136 ntp_u_int8_t ss_family; /* address family */ 137#else 138 short ss_family; /* address family */ 139#endif 140 char __ss_pad1[_SS_PAD1SIZE]; 141 ntp_uint64_t __ss_align; /* force desired structure storage alignment */ 142 char __ss_pad2[_SS_PAD2SIZE]; 143}; 144#endif 145 146/* 147 * Finally if the platform doesn't support IPv6 we need some 148 * additional definitions 149 */ 150 151/* 152 * Flag values for getaddrinfo() 153 */ 154#ifndef AI_PASSIVE 155#define AI_PASSIVE 0x00000001 /* get address to use bind() */ 156#define AI_CANONNAME 0x00000002 /* fill ai_canonname */ 157#define AI_NUMERICHOST 0x00000004 /* prevent name resolution */ 158/* valid flags for addrinfo */ 159#define AI_MASK \ 160 (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_ADDRCONFIG) 161 162#define AI_ADDRCONFIG 0x00000400 /* only if any address is assigned */ 163#endif /* !AI_PASSIVE */ 164 165#ifndef AI_NUMERICHOST /* such as AIX 4.3 */ 166# define Z_AI_NUMERICHOST 0 167#else 168# define Z_AI_NUMERICHOST AI_NUMERICHOST 169#endif 170 171#ifndef AI_NUMERICSERV /* not in RFC 2553 */ 172# define Z_AI_NUMERICSERV 0 173#else 174# define Z_AI_NUMERICSERV AI_NUMERICSERV 175#endif 176 177#ifndef ISC_PLATFORM_HAVEIPV6 178 179#ifdef SYS_WINNT 180# define in6_addr in_addr6 181#endif 182 183struct addrinfo { 184 int ai_flags; /* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */ 185 int ai_family; /* PF_xxx */ 186 int ai_socktype; /* SOCK_xxx */ 187 int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */ 188 size_t ai_addrlen; /* length of ai_addr */ 189 char *ai_canonname; /* canonical name for hostname */ 190 struct sockaddr *ai_addr; /* binary address */ 191 struct addrinfo *ai_next; /* next structure in linked list */ 192}; 193 194/* 195 * Error return codes from getaddrinfo() 196 */ 197#define EAI_ADDRFAMILY 1 /* address family for hostname not supported */ 198#define EAI_AGAIN 2 /* temporary failure in name resolution */ 199#define EAI_BADFLAGS 3 /* invalid value for ai_flags */ 200#define EAI_FAIL 4 /* non-recoverable failure in name resolution */ 201#define EAI_FAMILY 5 /* ai_family not supported */ 202#define EAI_MEMORY 6 /* memory allocation failure */ 203#define EAI_NODATA 7 /* no address associated with hostname */ 204#define EAI_NONAME 8 /* hostname nor servname provided, or not known */ 205#define EAI_SERVICE 9 /* servname not supported for ai_socktype */ 206#define EAI_SOCKTYPE 10 /* ai_socktype not supported */ 207#define EAI_SYSTEM 11 /* system error returned in errno */ 208#define EAI_BADHINTS 12 209#define EAI_PROTOCOL 13 210#define EAI_MAX 14 211 212 213int getaddrinfo (const char *, const char *, 214 const struct addrinfo *, struct addrinfo **); 215int getnameinfo (const struct sockaddr *, u_int, char *, 216 size_t, char *, size_t, int); 217void freeaddrinfo (struct addrinfo *); 218char *gai_strerror (int); 219 220/* 221 * Constants for getnameinfo() 222 */ 223#ifndef NI_MAXHOST 224#define NI_MAXHOST 1025 225#define NI_MAXSERV 32 226#endif 227 228/* 229 * Flag values for getnameinfo() 230 */ 231#ifndef NI_NUMERICHOST 232#define NI_NOFQDN 0x00000001 233#define NI_NUMERICHOST 0x00000002 234#define NI_NAMEREQD 0x00000004 235#define NI_NUMERICSERV 0x00000008 236#define NI_DGRAM 0x00000010 237#define NI_WITHSCOPEID 0x00000020 238#endif 239 240#endif /* !ISC_PLATFORM_HAVEIPV6 */ 241 242/* 243 * Set up some macros to look for IPv6 and IPv6 multicast 244 */ 245 246#if defined(ISC_PLATFORM_HAVEIPV6) && defined(WANT_IPV6) 247# define INCLUDE_IPV6_SUPPORT 248# if defined(IPV6_JOIN_GROUP) && defined(IPV6_LEAVE_GROUP) 249# define INCLUDE_IPV6_MULTICAST_SUPPORT 250# endif /* IPV6 Multicast Support */ 251#endif /* IPv6 Support */ 252 253#endif /* !NTP_RFC2553_H */ 254