/* -*- 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 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 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 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 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 #include #include #include #include #ifdef HAVE_LINUX #include #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 */ #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 */ 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