SystemConfiguration.fproj/SCNetwork.c

   1 /*
   2  * Copyright (c) 2000-2003 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
  26 /*
  27  * Modification History
  28  *
  29  * January 19, 2003             Allan Nathanson <ajn@apple.com>
  30  * - add advanced reachability APIs
  31  *
  32  * June 10, 2001                Allan Nathanson <ajn@apple.com>
  33  * - updated to use service-based "State:" information
  34  *
  35  * June 1, 2001                 Allan Nathanson <ajn@apple.com>
  36  * - public API conversion
  37  *
  38  * January 30, 2001             Allan Nathanson <ajn@apple.com>
  39  * - initial revision
  40  */
  41
  42 #include <sys/types.h>
  43 #include <netinet/in.h>
  44 #include <unistd.h>
  45 #include <sys/socket.h>
  46
  47 #include <SystemConfiguration/SystemConfiguration.h>
  48 #include <SystemConfiguration/SCPrivate.h>
  49
  50 #ifndef kSCEntNetRefreshConfiguration
  51 #define kSCEntNetRefreshConfiguration   CFSTR("RefreshConfiguration")
  52 #endif kSCEntNetRefreshConfiguration
  53
  54 Boolean
  55 SCNetworkCheckReachabilityByAddress(const struct sockaddr       *address,
  56                                     const int                   addrlen,
  57                                     SCNetworkConnectionFlags    *flags)
  58 {
  59         SCNetworkReachabilityRef                networkAddress;
  60         Boolean                 ok;
  61         struct sockaddr_storage ss;
  62
  63         if (!address ||
  64             (addrlen == 0) ||
  65             (addrlen > (int)sizeof(struct sockaddr_storage))) {
  66                 _SCErrorSet(kSCStatusInvalidArgument);
  67                 return FALSE;
  68         }
  69
  70         bzero(&ss, sizeof(ss));
  71         bcopy(address, &ss, addrlen);
  72         ss.ss_len = addrlen;
  73
  74         networkAddress = SCNetworkReachabilityCreateWithAddress(NULL, (struct sockaddr *)&ss);
  75         ok = SCNetworkReachabilityGetFlags(networkAddress, flags);
  76         CFRelease(networkAddress);
  77         return ok;
  78 }
  79
  80
  81 Boolean
  82 SCNetworkCheckReachabilityByName(const char                     *nodename,
  83                                  SCNetworkConnectionFlags       *flags)
  84 {
  85         SCNetworkReachabilityRef        networkAddress;
  86         Boolean         ok;
  87
  88         if (!nodename) {
  89                 _SCErrorSet(kSCStatusInvalidArgument);
  90                 return FALSE;
  91         }
  92
  93         networkAddress = SCNetworkReachabilityCreateWithName(NULL, nodename);
  94         ok = SCNetworkReachabilityGetFlags(networkAddress, flags);
  95         CFRelease(networkAddress);
  96         return ok;
  97 }
  98
  99 Boolean
 100 SCNetworkInterfaceRefreshConfiguration(CFStringRef ifName)
 101 {
 102         CFStringRef             key;
 103         Boolean                 ret = FALSE;
 104         SCDynamicStoreRef       store = NULL;
 105
 106         store = SCDynamicStoreCreate(NULL,
 107                                      CFSTR("SCNetworkInterfaceRefreshConfiguration"),
 108                                      NULL, NULL);
 109         if (store == NULL) {
 110                 goto done;
 111         }
 112         key = SCDynamicStoreKeyCreateNetworkInterfaceEntity(NULL,
 113                                                             kSCDynamicStoreDomainState,
 114                                                             ifName,
 115                                                             kSCEntNetRefreshConfiguration);
 116         ret = SCDynamicStoreNotifyValue(store, key);
 117         CFRelease(key);
 118
 119  done:
 120         if (store != NULL) {
 121                 CFRelease(store);
 122         }
 123         return (ret);
 124 }