+++ /dev/null
-/*
- * Copyright (c) 2002-2003 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- *
- * This file is not normally used.
- * It can be conditionally compiled in by defining RUN_ON_PUMA_WITHOUT_IFADDRS
- * in CFSocket.c. It is included mainly as sample code for people building
- * for other platforms that (like Puma) lack the getifaddrs() call.
- * NOTE: YOU CANNOT use this code to build an mDNSResponder daemon for Puma
- * that works just like the Jaguar one, because Puma lacks other necessary
- * functionality (like the LibInfo support to receive MIG messages from clients).
-
- Change History (most recent first):
-
-$Log: mDNSMacOSXPuma.c,v $
-Revision 1.4 2003/08/12 19:56:25 cheshire
-Update to APSL 2.0
-
-Revision 1.3 2003/07/02 21:19:51 cheshire
-<rdar://problem/3313413> Update copyright notices, etc., in source code comments
-
-Revision 1.2 2002/09/21 20:44:51 zarzycki
-Added APSL info
-
-Revision 1.1 2002/09/17 01:36:23 cheshire
-Move Puma support to CFSocketPuma.c
-
- */
-
-#include <sys/ioctl.h>
-#include <sys/sockio.h>
-#define ifaddrs ifa_info
-#ifndef ifa_broadaddr
-#define ifa_broadaddr ifa_dstaddr /* broadcast address interface */
-#endif
-#include <sys/cdefs.h>
-
-/* Our own header for the programs that need interface configuration info.
- Include this file, instead of "unp.h". */
-
-#define IFA_NAME 16 /* same as IFNAMSIZ in <net/if.h> */
-#define IFA_HADDR 8 /* allow for 64-bit EUI-64 in future */
-
-struct ifa_info {
- char ifa_name[IFA_NAME]; /* interface name, null terminated */
- u_char ifa_haddr[IFA_HADDR]; /* hardware address */
- u_short ifa_hlen; /* #bytes in hardware address: 0, 6, 8 */
- short ifa_flags; /* IFF_xxx constants from <net/if.h> */
- short ifa_myflags; /* our own IFI_xxx flags */
- struct sockaddr *ifa_addr; /* primary address */
- struct sockaddr *ifa_brdaddr;/* broadcast address */
- struct sockaddr *ifa_dstaddr;/* destination address */
- struct ifa_info *ifa_next; /* next of these structures */
-};
-
-#define IFI_ALIAS 1 /* ifa_addr is an alias */
-
- /* function prototypes */
-struct ifa_info *get_ifa_info(int, int);
-struct ifa_info *Get_ifa_info(int, int);
-void free_ifa_info(struct ifa_info *);
-
-#define HAVE_SOCKADDR_SA_LEN 1
-
-struct ifa_info *
-get_ifa_info(int family, int doaliases)
-{
- struct ifa_info *ifi, *ifihead, **ifipnext;
- int sockfd, len, lastlen, flags, myflags;
- char *ptr, *buf, lastname[IFNAMSIZ], *cptr;
- struct ifconf ifc;
- struct ifreq *ifr, ifrcopy;
- struct sockaddr_in *sinptr;
-
- sockfd = socket(AF_INET, SOCK_DGRAM, 0);
-
- lastlen = 0;
- len = 100 * sizeof(struct ifreq); /* initial buffer size guess */
- for ( ; ; ) {
- buf = (char *) malloc(len);
- ifc.ifc_len = len;
- ifc.ifc_buf = buf;
- if (ioctl(sockfd, SIOCGIFCONF, &ifc) < 0) {
- if (errno != EINVAL || lastlen != 0)
- debugf("ioctl error");
- } else {
- if (ifc.ifc_len == lastlen)
- break; /* success, len has not changed */
- lastlen = ifc.ifc_len;
- }
- len += 10 * sizeof(struct ifreq); /* increment */
- free(buf);
- }
- ifihead = NULL;
- ifipnext = &ifihead;
- lastname[0] = 0;
-/* end get_ifa_info1 */
-
-/* include get_ifa_info2 */
- for (ptr = buf; ptr < buf + ifc.ifc_len; ) {
- ifr = (struct ifreq *) ptr;
-
-#ifdef HAVE_SOCKADDR_SA_LEN
- len = MAX(sizeof(struct sockaddr), ifr->ifr_addr.sa_len);
-#else
- switch (ifr->ifr_addr.sa_family) {
-#ifdef IPV6
- case AF_INET6:
- len = sizeof(struct sockaddr_in6);
- break;
-#endif
- case AF_INET:
- default:
- len = sizeof(struct sockaddr);
- break;
- }
-#endif /* HAVE_SOCKADDR_SA_LEN */
- ptr += sizeof(ifr->ifr_name) + len; /* for next one in buffer */
-
- if (ifr->ifr_addr.sa_family != family)
- continue; /* ignore if not desired address family */
-
- myflags = 0;
- if ( (cptr = strchr(ifr->ifr_name, ':')) != NULL)
- *cptr = 0; /* replace colon will null */
- if (strncmp(lastname, ifr->ifr_name, IFNAMSIZ) == 0) {
- if (doaliases == 0)
- continue; /* already processed this interface */
- myflags = IFI_ALIAS;
- }
- memcpy(lastname, ifr->ifr_name, IFNAMSIZ);
-
- ifrcopy = *ifr;
- ioctl(sockfd, SIOCGIFFLAGS, &ifrcopy);
- flags = ifrcopy.ifr_flags;
- if ((flags & IFF_UP) == 0)
- continue; /* ignore if interface not up */
-
- ifi = (struct ifa_info *) calloc(1, sizeof(struct ifa_info));
- *ifipnext = ifi; /* prev points to this new one */
- ifipnext = &ifi->ifa_next; /* pointer to next one goes here */
-
- ifi->ifa_flags = flags; /* IFF_xxx values */
- ifi->ifa_myflags = myflags; /* IFI_xxx values */
- memcpy(ifi->ifa_name, ifr->ifr_name, IFA_NAME);
- ifi->ifa_name[IFA_NAME-1] = '\0';
-/* end get_ifa_info2 */
-/* include get_ifa_info3 */
- switch (ifr->ifr_addr.sa_family) {
- case AF_INET:
- sinptr = (struct sockaddr_in *) &ifr->ifr_addr;
- if (ifi->ifa_addr == NULL) {
- ifi->ifa_addr = (struct sockaddr *) calloc(1, sizeof(struct sockaddr_in));
- memcpy(ifi->ifa_addr, sinptr, sizeof(struct sockaddr_in));
-
-#ifdef SIOCGIFBRDADDR
- if (flags & IFF_BROADCAST) {
- ioctl(sockfd, SIOCGIFBRDADDR, &ifrcopy);
- sinptr = (struct sockaddr_in *) &ifrcopy.ifr_broadaddr;
- ifi->ifa_brdaddr = (struct sockaddr *) calloc(1, sizeof(struct sockaddr_in));
- memcpy(ifi->ifa_brdaddr, sinptr, sizeof(struct sockaddr_in));
- }
-#endif
-
-#ifdef SIOCGIFDSTADDR
- if (flags & IFF_POINTOPOINT) {
- ioctl(sockfd, SIOCGIFDSTADDR, &ifrcopy);
- sinptr = (struct sockaddr_in *) &ifrcopy.ifr_dstaddr;
- ifi->ifa_dstaddr = (struct sockaddr *) calloc(1, sizeof(struct sockaddr_in));
- memcpy(ifi->ifa_dstaddr, sinptr, sizeof(struct sockaddr_in));
- }
-#endif
- }
- break;
-
- default:
- break;
- }
- }
- free(buf);
- return(ifihead); /* pointer to first structure in linked list */
-}
-/* end get_ifa_info3 */
-
-/* include free_ifa_info */
-mDNSlocal void freeifaddrs(struct ifa_info *ifihead)
-{
- struct ifa_info *ifi, *ifinext;
-
- for (ifi = ifihead; ifi != NULL; ifi = ifinext) {
- if (ifi->ifa_addr != NULL)
- free(ifi->ifa_addr);
- if (ifi->ifa_brdaddr != NULL)
- free(ifi->ifa_brdaddr);
- if (ifi->ifa_dstaddr != NULL)
- free(ifi->ifa_dstaddr);
- ifinext = ifi->ifa_next; /* can't fetch ifa_next after free() */
- free(ifi); /* the ifa_info{} itself */
- }
-}
-/* end free_ifa_info */
-
-struct ifa_info *
-Get_ifa_info(int family, int doaliases)
-{
- struct ifa_info *ifi;
-
- if ( (ifi = get_ifa_info(family, doaliases)) == NULL)
- debugf("get_ifa_info error");
- return(ifi);
-}
-
-mDNSlocal int getifaddrs(struct ifa_info **ifalist)
- {
- *ifalist = get_ifa_info(PF_INET, false);
- if( ifalist == nil )
- return -1;
- else
- return(0);
- }
projects / apple / mdnsresponder.git / blobdiff