mDNSPosix/mDNSUNP.h

   1 /*
   2  * Copyright (c) 2002-2003 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24
  25     Change History (most recent first):
  26
  27 $Log: mDNSUNP.h,v $
  28 Revision 1.8  2003/08/12 19:56:26  cheshire
  29 Update to APSL 2.0
  30
  31 Revision 1.7  2003/08/06 18:20:51  cheshire
  32 Makefile cleanup
  33
  34 Revision 1.6  2003/07/02 21:19:59  cheshire
  35 <rdar://problem/3313413> Update copyright notices, etc., in source code comments
  36
  37 Revision 1.5  2003/03/13 03:46:21  cheshire
  38 Fixes to make the code build on Linux
  39
  40 Revision 1.4  2002/12/23 22:13:32  jgraessl
  41
  42 Reviewed by: Stuart Cheshire
  43 Initial IPv6 support for mDNSResponder.
  44
  45 Revision 1.3  2002/09/21 20:44:53  zarzycki
  46 Added APSL info
  47
  48 Revision 1.2  2002/09/19 04:20:44  cheshire
  49 Remove high-ascii characters that confuse some systems
  50
  51 Revision 1.1  2002/09/17 06:24:35  cheshire
  52 First checkin
  53
  54 */
  55
  56 #ifndef __mDNSUNP_h
  57 #define __mDNSUNP_h
  58
  59 #include <sys/types.h>
  60 #include <sys/socket.h>
  61 #include <net/if.h>
  62 #include <netinet/in.h>
  63
  64 #ifdef  __cplusplus
  65     extern "C" {
  66 #endif
  67
  68 #ifdef NOT_HAVE_SOCKLEN_T
  69     typedef unsigned int socklen_t;
  70 #endif
  71
  72 #if !defined(_SS_MAXSIZE)
  73     #define sockaddr_storage sockaddr
  74 #endif
  75
  76 #ifndef NOT_HAVE_SA_LEN
  77 #define GET_SA_LEN(X) (sizeof(struct sockaddr) > ((struct sockaddr*)&(X))->sa_len ? \
  78                        sizeof(struct sockaddr) : ((struct sockaddr*)&(X))->sa_len   )
  79 #elif mDNSIPv6Support
  80 #define GET_SA_LEN(X) (((struct sockaddr*)&(X))->sa_family == AF_INET  ? sizeof(struct sockaddr_in) : \
  81                        ((struct sockaddr*)&(X))->sa_family == AF_INET6 ? sizeof(struct sockaddr_in6) : sizeof(struct sockaddr))
  82 #else
  83 #define GET_SA_LEN(X) ((X).sa_family == AF_INET ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr))
  84 #endif
  85
  86 #define IFI_NAME    16          /* same as IFNAMSIZ in <net/if.h> */
  87 #define IFI_HADDR    8          /* allow for 64-bit EUI-64 in future */
  88
  89 // Renamed from my_in_pktinfo because in_pktinfo is used by Linux.
  90
  91 struct my_in_pktinfo {
  92     struct sockaddr_storage ipi_addr;
  93     int                     ipi_ifindex;            /* received interface index */
  94     char                    ipi_ifname[IFI_NAME];   /* received interface name  */
  95 };
  96
  97 extern ssize_t recvfrom_flags(int fd, void *ptr, size_t nbytes, int *flagsp,
  98                struct sockaddr *sa, socklen_t *salenptr, struct my_in_pktinfo *pktp);
  99
 100 struct ifi_info {
 101   char    ifi_name[IFI_NAME];   /* interface name, null terminated */
 102   u_char  ifi_haddr[IFI_HADDR]; /* hardware address */
 103   u_short ifi_hlen;             /* #bytes in hardware address: 0, 6, 8 */
 104   short   ifi_flags;            /* IFF_xxx constants from <net/if.h> */
 105   short   ifi_myflags;          /* our own IFI_xxx flags */
 106   int     ifi_index;            /* interface index */
 107   struct sockaddr  *ifi_addr;   /* primary address */
 108   struct sockaddr  *ifi_brdaddr;/* broadcast address */
 109   struct sockaddr  *ifi_dstaddr;/* destination address */
 110   struct ifi_info  *ifi_next;   /* next of these structures */
 111 };
 112
 113 #define IFI_ALIAS   1           /* ifi_addr is an alias */
 114
 115 extern struct ifi_info  *get_ifi_info(int family, int doaliases);
 116 extern void             free_ifi_info(struct ifi_info *);
 117
 118 #ifdef  __cplusplus
 119     }
 120 #endif
 121
 122 #endif