SystemConfiguration.fproj/SCP.c

   1 /*
   2  * Copyright (c) 2000, 2001, 2003-2005, 2007-2009 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->tv_sec       = statBuf->st_mtimespec.tv_sec;
  56         sig->tv_nsec      = statBuf->st_mtimespec.tv_nsec;
  57         sig->st_size      = statBuf->st_size;
  58         return signature;
  59 }
  60
  61
  62 __private_extern__ char *
  63 __SCPreferencesPath(CFAllocatorRef      allocator,
  64                     CFStringRef         prefsID,
  65                     Boolean             useNewPrefs)
  66 {
  67         CFStringRef     path            = NULL;
  68         char            *pathStr;
  69
  70         if (prefsID == NULL) {
  71                 /* default preference ID */
  72                 path = CFStringCreateWithFormat(allocator,
  73                                                 NULL,
  74                                                 CFSTR("%@/%@"),
  75                                                 useNewPrefs ? PREFS_DEFAULT_DIR    : PREFS_DEFAULT_DIR_OLD,
  76                                                 useNewPrefs ? PREFS_DEFAULT_CONFIG : PREFS_DEFAULT_CONFIG_OLD);
  77         } else if (CFStringHasPrefix(prefsID, CFSTR("/"))) {
  78                 /* if absolute path */
  79                 path = CFStringCreateCopy(allocator, prefsID);
  80         } else {
  81                 /* relative path */
  82                 path = CFStringCreateWithFormat(allocator,
  83                                                 NULL,
  84                                                 CFSTR("%@/%@"),
  85                                                 useNewPrefs ? PREFS_DEFAULT_DIR : PREFS_DEFAULT_DIR_OLD,
  86                                                 prefsID);
  87                 if (useNewPrefs && CFStringHasSuffix(path, CFSTR(".xml"))) {
  88                         CFMutableStringRef      newPath;
  89
  90                         newPath = CFStringCreateMutableCopy(allocator, 0, path);
  91                         CFStringReplace(newPath,
  92                                         CFRangeMake(CFStringGetLength(newPath)-4, 4),
  93                                         CFSTR(".plist"));
  94                         CFRelease(path);
  95                         path = newPath;
  96                 }
  97         }
  98
  99         /*
 100          * convert CFStringRef path to C-string path
 101          */
 102         pathStr = _SC_cfstring_to_cstring(path, NULL, 0, kCFStringEncodingASCII);
 103         if (pathStr == NULL) {
 104                 SCLog(_sc_verbose, LOG_DEBUG, CFSTR("could not convert path to C string"));
 105         }
 106
 107         CFRelease(path);
 108         return pathStr;
 109 }
 110
 111
 112 CFDataRef
 113 SCPreferencesGetSignature(SCPreferencesRef prefs)
 114 {
 115         SCPreferencesPrivateRef prefsPrivate    = (SCPreferencesPrivateRef)prefs;
 116
 117         if (prefs == NULL) {
 118                 /* sorry, you must provide a session */
 119                 _SCErrorSet(kSCStatusNoPrefsSession);
 120                 return NULL;
 121         }
 122
 123         __SCPreferencesAccess(prefs);
 124
 125         return prefsPrivate->signature;
 126 }
 127
 128
 129 __private_extern__ CFStringRef
 130 _SCPNotificationKey(CFAllocatorRef      allocator,
 131                     CFStringRef         prefsID,
 132                     int                 keyType)
 133 {
 134         CFStringRef     keyStr;
 135         char            *path;
 136         CFStringRef     pathStr;
 137         CFStringRef     storeKey;
 138
 139         switch (keyType) {
 140                 case kSCPreferencesKeyLock :
 141                         keyStr = CFSTR("lock");
 142                         break;
 143                 case kSCPreferencesKeyCommit :
 144                         keyStr = CFSTR("commit");
 145                         break;
 146                 case kSCPreferencesKeyApply :
 147                         keyStr = CFSTR("apply");
 148                         break;
 149                 default :
 150                         return NULL;
 151         }
 152
 153         path = __SCPreferencesPath(allocator, prefsID, TRUE);
 154         if (path == NULL) {
 155                 return NULL;
 156         }
 157
 158         pathStr = CFStringCreateWithCStringNoCopy(allocator,
 159                                                   path,
 160                                                   kCFStringEncodingASCII,
 161                                                   kCFAllocatorNull);
 162
 163         storeKey = CFStringCreateWithFormat(allocator,
 164                                             NULL,
 165                                             CFSTR("%@%@:%@"),
 166                                             kSCDynamicStoreDomainPrefs,
 167                                             keyStr,
 168                                             pathStr);
 169
 170         CFRelease(pathStr);
 171         CFAllocatorDeallocate(NULL, path);
 172         return storeKey;
 173 }
 174
 175
 176 CFStringRef
 177 SCDynamicStoreKeyCreatePreferences(CFAllocatorRef       allocator,
 178                                    CFStringRef          prefsID,
 179                                    SCPreferencesKeyType keyType)
 180 {
 181         return _SCPNotificationKey(allocator, prefsID, keyType);
 182 }