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1/*
2 * Copyright (c) 2000, 2001, 2003-2007, 2018 Apple Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23
24/*
25 * Modification History
26 *
27 * January 19, 2003 Allan Nathanson <ajn@apple.com>
28 * - add advanced reachability APIs
29 *
30 * June 10, 2001 Allan Nathanson <ajn@apple.com>
31 * - updated to use service-based "State:" information
32 *
33 * June 1, 2001 Allan Nathanson <ajn@apple.com>
34 * - public API conversion
35 *
36 * January 30, 2001 Allan Nathanson <ajn@apple.com>
37 * - initial revision
38 */
39
40#include <sys/types.h>
41#include <netinet/in.h>
42#include <unistd.h>
43#include <sys/socket.h>
44
45#include <SystemConfiguration/SystemConfiguration.h>
46#include <SystemConfiguration/SCPrivate.h>
47
48Boolean
49SCNetworkCheckReachabilityByAddress(const struct sockaddr *address,
50 socklen_t addrlen,
51 SCNetworkConnectionFlags *flags)
52{
53 SCNetworkReachabilityRef networkAddress;
54 Boolean ok;
55 struct sockaddr_storage ss;
56
57 if (!address ||
58 (addrlen == 0) ||
59 (addrlen > (int)sizeof(struct sockaddr_storage))) {
60 _SCErrorSet(kSCStatusInvalidArgument);
61 return FALSE;
62 }
63
64 memset(&ss, 0, sizeof(ss));
65 memcpy(&ss, address, addrlen);
66 ss.ss_len = addrlen;
67
68 networkAddress = SCNetworkReachabilityCreateWithAddress(NULL, (struct sockaddr *)&ss);
69 if (networkAddress == NULL) {
70 return FALSE;
71 }
72
73 ok = SCNetworkReachabilityGetFlags(networkAddress, flags);
74 CFRelease(networkAddress);
75 return ok;
76}
77
78
79Boolean
80SCNetworkCheckReachabilityByName(const char *nodename,
81 SCNetworkConnectionFlags *flags)
82{
83 SCNetworkReachabilityRef networkAddress;
84 Boolean ok;
85
86 if (!nodename) {
87 _SCErrorSet(kSCStatusInvalidArgument);
88 return FALSE;
89 }
90
91 networkAddress = SCNetworkReachabilityCreateWithName(NULL, nodename);
92 if (networkAddress == NULL) {
93 return FALSE;
94 }
95
96 ok = SCNetworkReachabilityGetFlags(networkAddress, flags);
97 CFRelease(networkAddress);
98 return ok;
99}