15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2010 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef SANDBOX_SANDBOX_POC_POCDLL_UTILS_H__ 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define SANDBOX_SANDBOX_POC_POCDLL_UTILS_H__ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <stdio.h> 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <io.h> 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/basictypes.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Class to convert a HANDLE to a FILE *. The FILE * is closed when the 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// object goes out of scope 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class HandleToFile { 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) HandleToFile() { 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) file_ = NULL; 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Note: c_file_handle_ does not need to be closed because fclose does it. 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ~HandleToFile() { 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (file_) { 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) fflush(file_); 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) fclose(file_); 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Translates a HANDLE (handle) to a FILE * opened with the mode "mode". 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The return value is the FILE * or NULL if there is an error. 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FILE* Translate(HANDLE handle, const char *mode) { 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (file_) { 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) HANDLE new_handle; 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) BOOL result = ::DuplicateHandle(::GetCurrentProcess(), 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) handle, 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ::GetCurrentProcess(), 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &new_handle, 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 0, // Don't ask for a specific 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // desired access. 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FALSE, // Not inheritable. 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DUPLICATE_SAME_ACCESS); 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!result) { 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int c_file_handle = _open_osfhandle(reinterpret_cast<LONG_PTR>(new_handle), 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 0); // No flags 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (-1 == c_file_handle) { 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) file_ = _fdopen(c_file_handle, mode); 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return file_; 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // the FILE* returned. We need to closed it at the end. 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FILE* file_; 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(HandleToFile); 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // SANDBOX_SANDBOX_POC_POCDLL_UTILS_H__ 66