SystemConfiguration.fproj/SCP.c

   1 /*
   2  * Copyright (c) 2000, 2001, 2003-2005, 2007 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
  38 #include <fcntl.h>
  39 #include <pwd.h>
  40 #include <unistd.h>
  41 #include <sys/errno.h>
  42 #include <sys/param.h>
  43
  44 __private_extern__ CFDataRef
  45 __SCPSignatureFromStatbuf(const struct stat *statBuf)
  46 {
  47         CFMutableDataRef        signature;
  48         SCPSignatureDataRef     sig;
  49
  50         signature = CFDataCreateMutable(NULL, sizeof(SCPSignatureData));
  51         CFDataSetLength(signature, sizeof(SCPSignatureData));
  52         sig = (SCPSignatureDataRef)CFDataGetBytePtr(signature);
  53         sig->st_dev       = statBuf->st_dev;
  54         sig->st_ino       = statBuf->st_ino;
  55         sig->st_mtimespec = statBuf->st_mtimespec;
  56         sig->st_size      = statBuf->st_size;
  57         return signature;
  58 }
  59
  60
  61 __private_extern__ char *
  62 __SCPreferencesPath(CFAllocatorRef      allocator,
  63                     CFStringRef         prefsID,
  64                     Boolean             useNewPrefs)
  65 {
  66         CFStringRef     path            = NULL;
  67         char            *pathStr;
  68
  69         if (prefsID == NULL) {
  70                 /* default preference ID */
  71                 path = CFStringCreateWithFormat(allocator,
  72                                                 NULL,
  73                                                 CFSTR("%@/%@"),
  74                                                 useNewPrefs ? PREFS_DEFAULT_DIR    : PREFS_DEFAULT_DIR_OLD,
  75                                                 useNewPrefs ? PREFS_DEFAULT_CONFIG : PREFS_DEFAULT_CONFIG_OLD);
  76         } else if (CFStringHasPrefix(prefsID, CFSTR("/"))) {
  77                 /* if absolute path */
  78                 path = CFStringCreateCopy(allocator, prefsID);
  79         } else {
  80                 /* relative path */
  81                 path = CFStringCreateWithFormat(allocator,
  82                                                 NULL,
  83                                                 CFSTR("%@/%@"),
  84                                                 useNewPrefs ? PREFS_DEFAULT_DIR : PREFS_DEFAULT_DIR_OLD,
  85                                                 prefsID);
  86                 if (useNewPrefs && CFStringHasSuffix(path, CFSTR(".xml"))) {
  87                         CFMutableStringRef      newPath;
  88
  89                         newPath = CFStringCreateMutableCopy(allocator, 0, path);
  90                         CFStringReplace(newPath,
  91                                         CFRangeMake(CFStringGetLength(newPath)-4, 4),
  92                                         CFSTR(".plist"));
  93                         CFRelease(path);
  94                         path = newPath;
  95                 }
  96         }
  97
  98         /*
  99          * convert CFStringRef path to C-string path
 100          */
 101         pathStr = _SC_cfstring_to_cstring(path, NULL, 0, kCFStringEncodingASCII);
 102         if (pathStr == NULL) {
 103                 SCLog(_sc_verbose, LOG_DEBUG, CFSTR("could not convert path to C string"));
 104         }
 105
 106         CFRelease(path);
 107         return pathStr;
 108 }
 109
 110
 111 CFDataRef
 112 SCPreferencesGetSignature(SCPreferencesRef prefs)
 113 {
 114         SCPreferencesPrivateRef prefsPrivate    = (SCPreferencesPrivateRef)prefs;
 115
 116         if (prefs == NULL) {
 117                 /* sorry, you must provide a session */
 118                 _SCErrorSet(kSCStatusNoPrefsSession);
 119                 return NULL;
 120         }
 121
 122         __SCPreferencesAccess(prefs);
 123
 124         return prefsPrivate->signature;
 125 }
 126
 127
 128 __private_extern__ CFStringRef
 129 _SCPNotificationKey(CFAllocatorRef      allocator,
 130                     CFStringRef         prefsID,
 131                     int                 keyType)
 132 {
 133         CFStringRef     keyStr;
 134         char            *path;
 135         CFStringRef     pathStr;
 136         CFStringRef     storeKey;
 137
 138         switch (keyType) {
 139                 case kSCPreferencesKeyCommit :
 140                         keyStr = CFSTR("commit");
 141                         break;
 142                 case kSCPreferencesKeyApply :
 143                         keyStr = CFSTR("apply");
 144                         break;
 145                 default :
 146                         return NULL;
 147         }
 148
 149         path = __SCPreferencesPath(allocator, prefsID, TRUE);
 150         if (path == NULL) {
 151                 return NULL;
 152         }
 153
 154         pathStr = CFStringCreateWithCStringNoCopy(allocator,
 155                                                   path,
 156                                                   kCFStringEncodingASCII,
 157                                                   kCFAllocatorNull);
 158
 159         storeKey = CFStringCreateWithFormat(allocator,
 160                                             NULL,
 161                                             CFSTR("%@%@:%@"),
 162                                             kSCDynamicStoreDomainPrefs,
 163                                             keyStr,
 164                                             pathStr);
 165
 166         CFRelease(pathStr);
 167         CFAllocatorDeallocate(NULL, path);
 168         return storeKey;
 169 }
 170
 171
 172 CFStringRef
 173 SCDynamicStoreKeyCreatePreferences(CFAllocatorRef       allocator,
 174                                    CFStringRef          prefsID,
 175                                    SCPreferencesKeyType keyType)
 176 {
 177         return _SCPNotificationKey(allocator, prefsID, keyType);
 178 }