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- // Copyright 2016 The Bazel Authors. All rights reserved.
- //
- // Licensed under the Apache License, Version 2.0 (the "License");
- // you may not use this file except in compliance with the License.
- // You may obtain a copy of the License at
- //
- // http://www.apache.org/licenses/LICENSE-2.0
- //
- // Unless required by applicable law or agreed to in writing, software
- // distributed under the License is distributed on an "AS IS" BASIS,
- // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- // See the License for the specific language governing permissions and
- // limitations under the License.
- #include "third_party/ijar/platform_utils.h"
- #include <limits.h>
- #include <stdio.h>
- #if defined(_WIN32) || defined(__CYGWIN__)
- #include <windows.h>
- #else // !(defined(_WIN32) || defined(__CYGWIN__))
- #include <sys/stat.h>
- #include <sys/types.h>
- #include <unistd.h>
- #endif // defined(_WIN32) || defined(__CYGWIN__)
- #include <string>
- namespace devtools_ijar {
- using std::string;
- bool stat_file(const char* path, Stat* result) {
- #if defined(_WIN32) || defined(__CYGWIN__)
- std::wstring wpath;
- std::string error;
- bool success = false;
- BY_HANDLE_FILE_INFORMATION info;
- HANDLE handle = ::CreateFileW(
- /* lpFileName */ wpath.c_str(),
- /* dwDesiredAccess */ GENERIC_READ,
- /* dwShareMode */ FILE_SHARE_READ,
- /* lpSecurityAttributes */ NULL,
- /* dwCreationDisposition */ OPEN_EXISTING,
- /* dwFlagsAndAttributes */ FILE_ATTRIBUTE_NORMAL,
- /* hTemplateFile */ NULL);
- if (handle == INVALID_HANDLE_VALUE) {
- // Opening it as a file failed, try opening it as a directory.
- handle = ::CreateFileW(
- /* lpFileName */ wpath.c_str(),
- /* dwDesiredAccess */ GENERIC_READ,
- /* dwShareMode */ FILE_SHARE_READ,
- /* lpSecurityAttributes */ NULL,
- /* dwCreationDisposition */ OPEN_EXISTING,
- /* dwFlagsAndAttributes */ FILE_FLAG_BACKUP_SEMANTICS,
- /* hTemplateFile */ NULL);
- }
- if (handle != INVALID_HANDLE_VALUE &&
- ::GetFileInformationByHandle(handle, &info)) {
- success = true;
- bool is_dir = (info.dwFileAttributes != INVALID_FILE_ATTRIBUTES) &&
- (info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
- // TODO(laszlocsomor): use info.nFileSizeHigh after we updated total_size to
- // be u8 type.
- result->total_size = is_dir ? 0 : info.nFileSizeLow;
- // TODO(laszlocsomor): query the actual permissions and write in file_mode.
- result->file_mode = 0777;
- result->is_directory = is_dir;
- }
- ::CloseHandle(handle);
- return success;
- #else // !(defined(_WIN32) || defined(__CYGWIN__))
- struct stat statst;
- if (stat(path, &statst) < 0) {
- return false;
- }
- result->total_size = statst.st_size;
- result->file_mode = statst.st_mode;
- result->is_directory = (statst.st_mode & S_IFDIR) != 0;
- return true;
- #endif
- }
- } // namespace devtools_ijar
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