1// Copyright 2012 The Chromium Authors 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#include "base/files/file_util.h" 6 7#import <Foundation/Foundation.h> 8#include <copyfile.h> 9#include <stdlib.h> 10#include <string.h> 11 12#include "base/apple/foundation_util.h" 13#include "base/check_op.h" 14#include "base/files/file_path.h" 15#include "base/strings/string_util.h" 16#include "base/threading/scoped_blocking_call.h" 17 18namespace base { 19 20bool CopyFile(const FilePath& from_path, const FilePath& to_path) { 21 ScopedBlockingCall scoped_blocking_call(FROM_HERE, BlockingType::MAY_BLOCK); 22 if (from_path.ReferencesParent() || to_path.ReferencesParent()) { 23 return false; 24 } 25 return (copyfile(from_path.value().c_str(), to_path.value().c_str(), 26 /*state=*/nullptr, COPYFILE_DATA) == 0); 27} 28 29bool GetTempDir(base::FilePath* path) { 30 // In order to facilitate hermetic runs on macOS, first check 31 // MAC_CHROMIUM_TMPDIR. This is used instead of TMPDIR for historical reasons. 32 // This was originally done for https://crbug.com/698759 (TMPDIR too long for 33 // process singleton socket path), but is hopefully obsolete as of 34 // https://crbug.com/1266817 (allows a longer process singleton socket path). 35 // Continue tracking MAC_CHROMIUM_TMPDIR as that's what build infrastructure 36 // sets on macOS. 37 const char* env_tmpdir = getenv("MAC_CHROMIUM_TMPDIR"); 38 if (env_tmpdir) { 39 *path = base::FilePath(env_tmpdir); 40 return true; 41 } 42 43 // If we didn't find it, fall back to the native function. 44 NSString* tmp = NSTemporaryDirectory(); 45 if (tmp == nil) { 46 return false; 47 } 48 *path = base::apple::NSStringToFilePath(tmp); 49 return true; 50} 51 52FilePath GetHomeDir() { 53 NSString* tmp = NSHomeDirectory(); 54 if (tmp != nil) { 55 FilePath mac_home_dir = base::apple::NSStringToFilePath(tmp); 56 if (!mac_home_dir.empty()) { 57 return mac_home_dir; 58 } 59 } 60 61 // Fall back on temp dir if no home directory is defined. 62 FilePath rv; 63 if (GetTempDir(&rv)) { 64 return rv; 65 } 66 67 // Last resort. 68 return FilePath("/tmp"); 69} 70 71} // namespace base 72