1/*
2 * Copyright (c) 2000, 2001, 2004-2006, 2010 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 * June 1, 2001			Allan Nathanson <ajn@apple.com>
28 * - public API conversion
29 *
30 * November 9, 2000		Allan Nathanson <ajn@apple.com>
31 * - initial revision
32 */
33
34#include <SystemConfiguration/SystemConfiguration.h>
35#include <SystemConfiguration/SCPrivate.h>
36#include "SCPreferencesInternal.h"
37#include "SCHelper_client.h"
38
39
40static Boolean
41__SCPreferencesApplyChanges_helper(SCPreferencesRef prefs)
42{
43	Boolean			ok;
44	SCPreferencesPrivateRef	prefsPrivate	= (SCPreferencesPrivateRef)prefs;
45	uint32_t		status		= kSCStatusOK;
46
47	if (prefsPrivate->helper_port == MACH_PORT_NULL) {
48		// if no helper
49		goto fail;
50	}
51
52	// have the helper "apply" the prefs
53//	status = kSCStatusOK;
54	ok = _SCHelperExec(prefsPrivate->helper_port,
55			   SCHELPER_MSG_PREFS_APPLY,
56			   NULL,
57			   &status,
58			   NULL);
59	if (!ok) {
60		goto fail;
61	}
62
63	if (status != kSCStatusOK) {
64		goto error;
65	}
66
67	return TRUE;
68
69    fail :
70
71	// close helper
72	if (prefsPrivate->helper_port != MACH_PORT_NULL) {
73		_SCHelperClose(&prefsPrivate->helper_port);
74	}
75
76	status = kSCStatusAccessError;
77
78    error :
79
80	// return error
81	_SCErrorSet(status);
82	return FALSE;
83}
84
85
86Boolean
87SCPreferencesApplyChanges(SCPreferencesRef prefs)
88{
89	Boolean			ok		= FALSE;
90	SCPreferencesPrivateRef	prefsPrivate	= (SCPreferencesPrivateRef)prefs;
91	Boolean			wasLocked;
92
93	if (prefs == NULL) {
94		/* sorry, you must provide a session */
95		_SCErrorSet(kSCStatusNoPrefsSession);
96		return FALSE;
97	}
98
99	/*
100	 * Determine if the we have exclusive access to the preferences
101	 * and acquire the lock if necessary.
102	 */
103	wasLocked = prefsPrivate->locked;
104	if (!wasLocked) {
105		if (!SCPreferencesLock(prefs, TRUE)) {
106			SCLog(_sc_verbose, LOG_DEBUG, CFSTR("SCPreferencesApplyChanges SCPreferencesLock() failed"));
107			return FALSE;
108		}
109	}
110
111	if (prefsPrivate->authorizationData != NULL) {
112		ok = __SCPreferencesApplyChanges_helper(prefs);
113		goto done;
114	}
115
116	/* post notification */
117	if (prefsPrivate->session == NULL) {
118		ok = TRUE;
119	} else {
120		ok = SCDynamicStoreNotifyValue(prefsPrivate->session, prefsPrivate->sessionKeyApply);
121		if (!ok) {
122			SCLog(_sc_verbose, LOG_DEBUG, CFSTR("SCPreferencesApplyChanges SCDynamicStoreNotifyValue() failed"));
123			_SCErrorSet(kSCStatusFailed);
124		}
125	}
126
127    done :
128
129	if (!wasLocked) {
130		uint32_t	status;
131
132		status = SCError();	// preserve status across unlock
133		(void) SCPreferencesUnlock(prefs);
134		_SCErrorSet(status);
135	}
136	return ok;
137}
138