patcyh.mm

   1 /* patcyh - you should pronounce it like patch
   2  * Copyright (C) 2015  Jay Freeman (saurik)
   3 */
   4
   5 /* GNU General Public License, Version 3 {{{ */
   6 /*
   7  * Cydia is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published
   9  * by the Free Software Foundation, either version 3 of the License,
  10  * or (at your option) any later version.
  11  *
  12  * Cydia is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with Cydia.  If not, see <http://www.gnu.org/licenses/>.
  19 **/
  20 /* }}} */
  21
  22 #include <objc/runtime.h>
  23 #include <Foundation/Foundation.h>
  24
  25 @interface MIFileManager
  26 + (MIFileManager *) defaultManager;
  27 - (NSURL *) destinationOfSymbolicLinkAtURL:(NSURL *)url error:(NSError *)error;
  28 @end
  29
  30 static Class $MIFileManager;
  31
  32 static NSArray *(*_MIFileManager$urlsForItemsInDirectoryAtURL$ignoringSymlinks$error$)(MIFileManager *self, SEL _cmd, NSURL *url, BOOL ignoring, NSError *error);
  33
  34 static NSArray *$MIFileManager$urlsForItemsInDirectoryAtURL$ignoringSymlinks$error$(MIFileManager *self, SEL _cmd, NSURL *url, BOOL ignoring, NSError *error) {
  35     MIFileManager *manager(reinterpret_cast<MIFileManager *>([$MIFileManager defaultManager]));
  36     NSURL *destiny([manager destinationOfSymbolicLinkAtURL:url error:NULL]);
  37     if (destiny == nil)
  38         return _MIFileManager$urlsForItemsInDirectoryAtURL$ignoringSymlinks$error$(self, _cmd, url, NO, error);
  39
  40     NSArray *prefix([url pathComponents]);
  41     size_t skip([[destiny pathComponents] count]);
  42     NSMutableArray *items([NSMutableArray array]);
  43     for (NSURL *item in _MIFileManager$urlsForItemsInDirectoryAtURL$ignoringSymlinks$error$(self, _cmd, destiny, NO, error)) {
  44         NSArray *components([item pathComponents]);
  45         [items addObject:[NSURL fileURLWithPathComponents:[prefix arrayByAddingObjectsFromArray:[components subarrayWithRange:NSMakeRange(skip, [components count] - skip)]]]];
  46     }
  47
  48     return items;
  49 }
  50
  51 __attribute__((__constructor__))
  52 static void initialize() {
  53     $MIFileManager = objc_getClass("MIFileManager");
  54     SEL sel(@selector(urlsForItemsInDirectoryAtURL:ignoringSymlinks:error:));
  55     Method method(class_getInstanceMethod($MIFileManager, sel));
  56     _MIFileManager$urlsForItemsInDirectoryAtURL$ignoringSymlinks$error$ = reinterpret_cast<NSArray *(*)(MIFileManager *, SEL, NSURL *, BOOL, NSError *)>(method_getImplementation(method));
  57     method_setImplementation(method, reinterpret_cast<IMP>(&$MIFileManager$urlsForItemsInDirectoryAtURL$ignoringSymlinks$error$));
  58 }