CFSystemDirectories.c

   1 /*
   2  * Copyright (c) 2012 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 /*      CFSystemDirectories.c
  25         Copyright (c) 1997-2011, Apple Inc. All rights reserved.
  26         Responsibility: Kevin Perry
  27 */
  28
  29 /*
  30         This file defines CFCopySearchPathForDirectoriesInDomains().
  31         On MacOS 8, this function returns empty array.
  32         On Mach, it calls the System.framework enumeration functions.
  33         On Windows, it calls the enumeration functions defined here.
  34 */
  35
  36 #include <CoreFoundation/CFPriv.h>
  37 #include "CFInternal.h"
  38
  39 #if DEPLOYMENT_TARGET_MACOSX || DEPLOYMENT_TARGET_EMBEDDED
  40
  41 /* We use the System framework implementation on Mach.
  42 */
  43 #include <libc.h>
  44 #include <stdio.h>
  45 #include <stdlib.h>
  46 #include <NSSystemDirectories.h>
  47
  48 CFSearchPathEnumerationState __CFStartSearchPathEnumeration(CFSearchPathDirectory dir, CFSearchPathDomainMask domainMask) {
  49     return NSStartSearchPathEnumeration(dir, domainMask);
  50 }
  51
  52 CFSearchPathEnumerationState __CFGetNextSearchPathEnumeration(CFSearchPathEnumerationState state, uint8_t *path, CFIndex pathSize) {
  53     CFSearchPathEnumerationState result;
  54     // NSGetNextSearchPathEnumeration requires a MAX_PATH size
  55     if (pathSize < PATH_MAX) {
  56         uint8_t tempPath[PATH_MAX];
  57         result = NSGetNextSearchPathEnumeration(state, (char *)tempPath);
  58         strlcpy((char *)path, (char *)tempPath, pathSize);
  59     } else {
  60         result = NSGetNextSearchPathEnumeration(state, (char *)path);
  61     }
  62     return result;
  63 }
  64
  65 #endif
  66
  67
  68 #if DEPLOYMENT_TARGET_MACOSX || DEPLOYMENT_TARGET_EMBEDDED || DEPLOYMENT_TARGET_WINDOWS
  69
  70 CFArrayRef CFCopySearchPathForDirectoriesInDomains(CFSearchPathDirectory directory, CFSearchPathDomainMask domainMask, Boolean expandTilde) {
  71     CFMutableArrayRef array;
  72     CFSearchPathEnumerationState state;
  73     CFIndex homeLen = -1;
  74     char cPath[CFMaxPathSize], home[CFMaxPathSize];
  75
  76     array = CFArrayCreateMutable(kCFAllocatorSystemDefault, 0, &kCFTypeArrayCallBacks);
  77     state = __CFStartSearchPathEnumeration(directory, domainMask);
  78     while ((state = __CFGetNextSearchPathEnumeration(state, (uint8_t *)cPath, sizeof(cPath)))) {
  79         CFURLRef url = NULL;
  80         if (expandTilde && (cPath[0] == '~')) {
  81             if (homeLen < 0) {
  82                 CFURLRef homeURL = CFCopyHomeDirectoryURLForUser(NULL);
  83                 if (homeURL) {
  84                     CFURLGetFileSystemRepresentation(homeURL, true, (uint8_t *)home, CFMaxPathSize);
  85                     homeLen = strlen(home);
  86                     CFRelease(homeURL);
  87                 }
  88             }
  89             if (homeLen + strlen(cPath) < CFMaxPathSize) {
  90                 home[homeLen] = '\0';
  91                 strlcat(home, &cPath[1], sizeof(home));
  92                 url = CFURLCreateFromFileSystemRepresentation(kCFAllocatorSystemDefault, (uint8_t *)home, strlen(home), true);
  93             }
  94         } else {
  95             url = CFURLCreateFromFileSystemRepresentation(kCFAllocatorSystemDefault, (uint8_t *)cPath, strlen(cPath), true);
  96         }
  97         if (url) {
  98             CFArrayAppendValue(array, url);
  99             CFRelease(url);
 100         }
 101     }
 102     return array;
 103 }
 104
 105 #endif
 106
 107 #undef numDirs
 108 #undef numApplicationDirs
 109 #undef numLibraryDirs
 110 #undef numDomains
 111 #undef invalidDomains
 112 #undef invalidDomains
 113