293 lines
9.4 KiB
C
293 lines
9.4 KiB
C
/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1982, 1986, 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)in.h 8.3 (Berkeley) 1/3/94
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*/
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/*
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* Compatability shims with the rfc2553 API to simplify ntp.
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*/
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#ifndef _NTP_RFC2553_H_
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#define _NTP_RFC2553_H_
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/*
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* Ensure that we include the configuration file before we check
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* for IPV6
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*/
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#include <config.h>
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#include <netdb.h>
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#include "ntp_types.h"
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/*
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* Don't include any additional IPv6 definitions
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* We are defining our own here.
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*/
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#define ISC_IPV6_H 1
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/*
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* If various macros are not defined we need to define them
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*/
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#ifndef AF_INET6
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#define AF_INET6 AF_MAX
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#define PF_INET6 AF_INET6
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#endif
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#if !defined(_SS_MAXSIZE) && !defined(_SS_ALIGNSIZE)
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#define _SS_MAXSIZE 128
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#define _SS_ALIGNSIZE (sizeof(ntp_uint64_t))
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#ifdef HAVE_SA_LEN_IN_STRUCT_SOCKADDR
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#define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof(u_char) - sizeof(ntp_u_int8_t))
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#define _SS_PAD2SIZE (_SS_MAXSIZE - sizeof(u_char) - sizeof(ntp_u_int8_t) - \
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_SS_PAD1SIZE - _SS_ALIGNSIZE)
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#else
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#define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof(short))
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#define _SS_PAD2SIZE (_SS_MAXSIZE - sizeof(short) - \
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_SS_PAD1SIZE - _SS_ALIGNSIZE)
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#endif /* HAVE_SA_LEN_IN_STRUCT_SOCKADDR */
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#endif
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/*
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* If we don't have the sockaddr_storage structure
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* we need to define it
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*/
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#ifndef HAVE_STRUCT_SOCKADDR_STORAGE
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struct sockaddr_storage {
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#ifdef HAVE_SA_LEN_IN_STRUCT_SOCKADDR
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ntp_u_int8_t ss_len; /* address length */
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ntp_u_int8_t ss_family; /* address family */
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#else
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short ss_family; /* address family */
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#endif
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char __ss_pad1[_SS_PAD1SIZE];
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ntp_uint64_t __ss_align; /* force desired structure storage alignment */
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char __ss_pad2[_SS_PAD2SIZE];
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};
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#endif
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/*
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* Finally if the platform doesn't support IPv6 we need some
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* additional definitions
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*/
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/*
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* Flag values for getaddrinfo()
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*/
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#ifndef AI_NUMERICHOST
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#define AI_PASSIVE 0x00000001 /* get address to use bind() */
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#define AI_CANONNAME 0x00000002 /* fill ai_canonname */
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#define AI_NUMERICHOST 0x00000004 /* prevent name resolution */
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/* valid flags for addrinfo */
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#define AI_MASK \
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(AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_ADDRCONFIG)
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#define AI_ADDRCONFIG 0x00000400 /* only if any address is assigned */
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#endif
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#ifndef ISC_PLATFORM_HAVEIPV6
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/*
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* Definition of some useful macros to handle IP6 addresses
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*/
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#ifdef ISC_PLATFORM_NEEDIN6ADDRANY
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#ifdef SYS_WINNT
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#define IN6ADDR_ANY_INIT {{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }}
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#else
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#define IN6ADDR_ANY_INIT \
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{{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
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#endif
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#endif
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/*
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* IPv6 address
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*/
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#ifdef SYS_WINNT
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#define in6_addr in_addr6
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#else
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struct in6_addr {
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union {
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ntp_u_int8_t __u6_addr8[16];
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ntp_u_int16_t __u6_addr16[8];
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ntp_u_int32_t __u6_addr32[4];
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} __u6_addr; /* 128-bit IP6 address */
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};
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#define s6_addr __u6_addr.__u6_addr8
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#endif
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#if defined(ISC_PLATFORM_HAVEIPV6) && defined(ISC_PLATFORM_NEEDIN6ADDRANY)
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extern const struct in6_addr in6addr_any;
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#endif
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#define SIN6_LEN
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#ifndef HAVE_SOCKADDR_IN6
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struct sockaddr_in6 {
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#ifdef HAVE_SA_LEN_IN_STRUCT_SOCKADDR
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ntp_u_int8_t sin6_len; /* length of this struct(sa_family_t)*/
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ntp_u_int8_t sin6_family; /* AF_INET6 (sa_family_t) */
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#else
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short sin6_family; /* AF_INET6 (sa_family_t) */
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#endif
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ntp_u_int16_t sin6_port; /* Transport layer port # (in_port_t)*/
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ntp_u_int32_t sin6_flowinfo; /* IP6 flow information */
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struct in6_addr sin6_addr; /* IP6 address */
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ntp_u_int32_t sin6_scope_id; /* scope zone index */
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};
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#endif
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/*
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* Unspecified
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*/
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#ifndef IN6_IS_ADDR_UNSPECIFIED
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#define IN6_IS_ADDR_UNSPECIFIED(a) \
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((*(const ntp_u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
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(*(const ntp_u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
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(*(const ntp_u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
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(*(const ntp_u_int32_t *)(const void *)(&(a)->s6_addr[12]) == 0))
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#endif
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/*
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* Multicast
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*/
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#ifndef IN6_IS_ADDR_MULTICAST
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#define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff)
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#endif
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/*
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* Unicast link / site local.
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*/
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#ifndef IN6_IS_ADDR_LINKLOCAL
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#define IN6_IS_ADDR_LINKLOCAL(a) (\
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(*((u_long *)((a)->s6_addr) ) == 0xfe) && \
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((*((u_long *)((a)->s6_addr) + 1) & 0xc0) == 0x80))
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#endif
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#ifndef IN6_IS_ADDR_SITELOCAL
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#define IN6_IS_ADDR_SITELOCAL(a) (\
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(*((u_long *)((a)->s6_addr) ) == 0xfe) && \
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((*((u_long *)((a)->s6_addr) + 1) & 0xc0) == 0xc0))
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#endif
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struct addrinfo {
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int ai_flags; /* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */
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int ai_family; /* PF_xxx */
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int ai_socktype; /* SOCK_xxx */
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int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */
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size_t ai_addrlen; /* length of ai_addr */
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char *ai_canonname; /* canonical name for hostname */
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struct sockaddr *ai_addr; /* binary address */
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struct addrinfo *ai_next; /* next structure in linked list */
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};
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/*
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* Error return codes from getaddrinfo()
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*/
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#define EAI_ADDRFAMILY 1 /* address family for hostname not supported */
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#define EAI_AGAIN 2 /* temporary failure in name resolution */
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#define EAI_BADFLAGS 3 /* invalid value for ai_flags */
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#define EAI_FAIL 4 /* non-recoverable failure in name resolution */
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#define EAI_FAMILY 5 /* ai_family not supported */
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#define EAI_MEMORY 6 /* memory allocation failure */
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#define EAI_NODATA 7 /* no address associated with hostname */
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#define EAI_NONAME 8 /* hostname nor servname provided, or not known */
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#define EAI_SERVICE 9 /* servname not supported for ai_socktype */
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#define EAI_SOCKTYPE 10 /* ai_socktype not supported */
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#define EAI_SYSTEM 11 /* system error returned in errno */
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#define EAI_BADHINTS 12
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#define EAI_PROTOCOL 13
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#define EAI_MAX 14
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int getaddrinfo P((const char *, const char *,
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const struct addrinfo *, struct addrinfo **));
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int getnameinfo P((const struct sockaddr *, u_int, char *,
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size_t, char *, size_t, int));
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void freeaddrinfo P((struct addrinfo *));
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char *gai_strerror P((int));
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/*
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* Constants for getnameinfo()
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*/
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#ifndef NI_MAXHOST
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#define NI_MAXHOST 1025
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#define NI_MAXSERV 32
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#endif
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/*
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* Flag values for getnameinfo()
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*/
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#ifndef NI_NUMERICHOST
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#define NI_NOFQDN 0x00000001
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#define NI_NUMERICHOST 0x00000002
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#define NI_NAMEREQD 0x00000004
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#define NI_NUMERICSERV 0x00000008
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#define NI_DGRAM 0x00000010
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#define NI_WITHSCOPEID 0x00000020
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#endif
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#endif /* ISC_PLATFORM_HAVEIPV6 */
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#endif /* !_NTP_RFC2553_H_ */
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