michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim:set ts=2 sw=2 sts=2 et cindent: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "win_dirent.h"
michael@0: #include <errno.h>
michael@0: #include <string.h>
michael@0: 
michael@0: // This file implements the minimum set of dirent APIs used by updater.cpp on
michael@0: // Windows.  If updater.cpp is modified to use more of this API, we need to
michael@0: // implement those parts here too.
michael@0: 
michael@0: static dirent gDirEnt;
michael@0: 
michael@0: DIR::DIR(const WCHAR* path)
michael@0:   : findHandle(INVALID_HANDLE_VALUE)
michael@0: {
michael@0:   memset(name, 0, sizeof(name));
michael@0:   wcsncpy(name, path, sizeof(name)/sizeof(name[0]));
michael@0:   wcsncat(name, L"\\*", sizeof(name)/sizeof(name[0]) - wcslen(name) - 1);
michael@0: }
michael@0: 
michael@0: DIR::~DIR()
michael@0: {
michael@0:   if (findHandle != INVALID_HANDLE_VALUE) {
michael@0:     FindClose(findHandle);
michael@0:   }
michael@0: }
michael@0: 
michael@0: dirent::dirent()
michael@0: {
michael@0:   d_name[0] = L'\0';
michael@0: }
michael@0: 
michael@0: DIR*
michael@0: opendir(const WCHAR* path)
michael@0: {
michael@0:   return new DIR(path);
michael@0: }
michael@0: 
michael@0: int
michael@0: closedir(DIR* dir)
michael@0: {
michael@0:   delete dir;
michael@0:   return 0;
michael@0: }
michael@0: 
michael@0: dirent* readdir(DIR* dir)
michael@0: {
michael@0:   WIN32_FIND_DATAW data;
michael@0:   if (dir->findHandle != INVALID_HANDLE_VALUE) {
michael@0:     BOOL result = FindNextFileW(dir->findHandle, &data);
michael@0:     if (!result) {
michael@0:       if (GetLastError() != ERROR_FILE_NOT_FOUND) {
michael@0:         errno = ENOENT;
michael@0:       }
michael@0:       return 0;
michael@0:     }
michael@0:   } else {
michael@0:     // Reading the first directory entry
michael@0:     dir->findHandle = FindFirstFileW(dir->name, &data);
michael@0:     if (dir->findHandle == INVALID_HANDLE_VALUE) {
michael@0:       if (GetLastError() == ERROR_FILE_NOT_FOUND) {
michael@0:         errno = ENOENT;
michael@0:       } else {
michael@0:         errno = EBADF;
michael@0:       }
michael@0:       return 0;
michael@0:     }
michael@0:   }
michael@0:   memset(gDirEnt.d_name, 0, sizeof(gDirEnt.d_name));
michael@0:   wcsncpy(gDirEnt.d_name, data.cFileName,
michael@0:            sizeof(gDirEnt.d_name)/sizeof(gDirEnt.d_name[0]));
michael@0:   return &gDirEnt;
michael@0: }
michael@0: