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/* -*- Mode: C; tab-width: 4 -*-
*
* Copyright (c) 2002-2004 Apple Computer, Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
Change History (most recent first):
$Log: mDNSUNP.h,v $
Revision 1.19 2006/08/14 23:24:47 cheshire
Re-licensed mDNSResponder daemon source code under Apache License, Version 2.0
Revision 1.18 2005/04/08 21:37:57 ksekar
<rdar://problem/3792767> get_ifi_info doesn't return IPv6 interfaces on Linux
Revision 1.17 2004/12/17 19:32:43 cheshire
Add missing semicolon
Revision 1.16 2004/12/01 04:25:05 cheshire
<rdar://problem/3872803> Darwin patches for Solaris and Suse
Provide daemon() for platforms that don't have it
Revision 1.15 2004/11/30 22:37:01 cheshire
Update copyright dates and add "Mode: C; tab-width: 4" headers
Revision 1.14 2004/10/16 00:17:01 cheshire
<rdar://problem/3770558> Replace IP TTL 255 check with local subnet source address check
Revision 1.13 2004/03/20 05:37:09 cheshire
Fix contributed by Terry Lambert & Alfred Perlstein:
Don't use uint8_t -- it requires stdint.h, which doesn't exist on FreeBSD 4.x
Revision 1.12 2004/01/28 21:12:15 cheshire
Reconcile mDNSIPv6Support & HAVE_IPV6 into a single flag (HAVE_IPV6)
Revision 1.11 2003/12/13 05:43:09 bradley
Fixed non-sa_len and non-IPv6 version of GET_SA_LEN macro to cast as sockaddr to access
sa_family so it works with any sockaddr-compatible address structure (e.g. sockaddr_storage).
Revision 1.10 2003/12/11 03:03:51 rpantos
Clean up mDNSPosix so that it builds on OS X again.
Revision 1.9 2003/12/08 20:47:02 rpantos
Add support for mDNSResponder on Linux.
Revision 1.8 2003/08/12 19:56:26 cheshire
Update to APSL 2.0
Revision 1.7 2003/08/06 18:20:51 cheshire
Makefile cleanup
Revision 1.6 2003/07/02 21:19:59 cheshire
<rdar://problem/3313413> Update copyright notices, etc., in source code comments
Revision 1.5 2003/03/13 03:46:21 cheshire
Fixes to make the code build on Linux
Revision 1.4 2002/12/23 22:13:32 jgraessl
Reviewed by: Stuart Cheshire
Initial IPv6 support for mDNSResponder.
Revision 1.3 2002/09/21 20:44:53 zarzycki
Added APSL info
Revision 1.2 2002/09/19 04:20:44 cheshire
Remove high-ascii characters that confuse some systems
Revision 1.1 2002/09/17 06:24:35 cheshire
First checkin
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#ifndef __mDNSUNP_h
#define __mDNSUNP_h
#include <sys/types.h>
#include <sys/socket.h>
#include <net/if.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#ifdef HAVE_LINUX
#include <linux/socket.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
#ifdef NOT_HAVE_SOCKLEN_T
typedef unsigned int socklen_t;
#endif
#if !defined(_SS_MAXSIZE)
#if HAVE_IPV6
#define sockaddr_storage sockaddr_in6
#else
#define sockaddr_storage sockaddr
#endif // HAVE_IPV6
#endif // !defined(_SS_MAXSIZE)
#ifndef NOT_HAVE_SA_LEN
#define GET_SA_LEN(X) (sizeof(struct sockaddr) > ((struct sockaddr*)&(X))->sa_len ? \
sizeof(struct sockaddr) : ((struct sockaddr*)&(X))->sa_len )
#elif HAVE_IPV6
#define GET_SA_LEN(X) (((struct sockaddr*)&(X))->sa_family == AF_INET ? sizeof(struct sockaddr_in) : \
((struct sockaddr*)&(X))->sa_family == AF_INET6 ? sizeof(struct sockaddr_in6) : sizeof(struct sockaddr))
#else
#define GET_SA_LEN(X) (((struct sockaddr*)&(X))->sa_family == AF_INET ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr))
#endif
#define IFI_NAME 16 /* same as IFNAMSIZ in <net/if.h> */
#define IFI_HADDR 8 /* allow for 64-bit EUI-64 in future */
// Renamed from my_in_pktinfo because in_pktinfo is used by Linux.
struct my_in_pktinfo {
struct sockaddr_storage ipi_addr;
int ipi_ifindex; /* received interface index */
char ipi_ifname[IFI_NAME]; /* received interface name */
};
/* From the text (Stevens, section 20.2): */
/* 'As an example of recvmsg we will write a function named recvfrom_flags that */
/* is similar to recvfrom but also returns: */
/* 1. the returned msg_flags value, */
/* 2. the destination addres of the received datagram (from the IP_RECVDSTADDR socket option, and */
/* 3. the index of the interface on which the datagram was received (the IP_RECVIF socket option).' */
extern ssize_t recvfrom_flags(int fd, void *ptr, size_t nbytes, int *flagsp,
struct sockaddr *sa, socklen_t *salenptr, struct my_in_pktinfo *pktp, u_char *ttl);
struct ifi_info {
char ifi_name[IFI_NAME]; /* interface name, null terminated */
u_char ifi_haddr[IFI_HADDR]; /* hardware address */
u_short ifi_hlen; /* #bytes in hardware address: 0, 6, 8 */
short ifi_flags; /* IFF_xxx constants from <net/if.h> */
short ifi_myflags; /* our own IFI_xxx flags */
int ifi_index; /* interface index */
struct sockaddr *ifi_addr; /* primary address */
struct sockaddr *ifi_netmask;
struct sockaddr *ifi_brdaddr;/* broadcast address */
struct sockaddr *ifi_dstaddr;/* destination address */
struct ifi_info *ifi_next; /* next of these structures */
};
#if defined(AF_INET6) && HAVE_IPV6 && HAVE_LINUX
#define PROC_IFINET6_PATH "/proc/net/if_inet6"
extern struct ifi_info *get_ifi_info_linuxv6(int family, int doaliases);
#endif
#if defined(AF_INET6) && HAVE_IPV6
#define INET6_ADDRSTRLEN 46 /*Maximum length of IPv6 address */
#endif
#define IFI_ALIAS 1 /* ifi_addr is an alias */
/* From the text (Stevens, section 16.6): */
/* 'Since many programs need to know all the interfaces on a system, we will develop a */
/* function of our own named get_ifi_info that returns a linked list of structures, one */
/* for each interface that is currently "up."' */
extern struct ifi_info *get_ifi_info(int family, int doaliases);
/* 'The free_ifi_info function, which takes a pointer that was */
/* returned by get_ifi_info and frees all the dynamic memory.' */
extern void free_ifi_info(struct ifi_info *);
#ifdef NOT_HAVE_DAEMON
extern int daemon(int nochdir, int noclose);
#endif
#ifdef __cplusplus
}
#endif
#endif
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