/* * file_provider_win32.c * * Copyright 2014, 2015 Michael Zillgith * * This file is part of libIEC61850. * * libIEC61850 is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * libIEC61850 is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with libIEC61850. If not, see . * * See COPYING file for the complete license text. */ #include #include #include #include #include #include #include "hal_filesystem.h" #include "platform_endian.h" #include "lib_memory.h" #include #include struct sDirectoryHandle { HANDLE handle; WIN32_FIND_DATAW findData; char utf8Filename[MAX_PATH * 3 + 1]; bool available; }; FileHandle FileSystem_openFile(char* fileName, bool readWrite) { FileHandle newHandle = NULL; if (readWrite) newHandle = (FileHandle) fopen(fileName, "wb"); else newHandle = (FileHandle) fopen(fileName, "rb"); return newHandle; } int FileSystem_readFile(FileHandle handle, uint8_t* buffer, int maxSize) { return fread(buffer, 1, maxSize, (FILE*) handle); } int FileSystem_writeFile(FileHandle handle, uint8_t* buffer, int size) { return fwrite(buffer, 1, size, (FILE*) handle); } void FileSystem_closeFile(FileHandle handle) { fclose((FILE*) handle); } bool FileSystem_getFileInfo(char* filename, uint32_t* fileSize, uint64_t* lastModificationTimestamp) { WIN32_FILE_ATTRIBUTE_DATA fad; if (GetFileAttributesEx(filename, GetFileExInfoStandard, &fad) == 0) return false; if (lastModificationTimestamp != NULL) { FILETIME lastModTime = fad.ftLastWriteTime; uint64_t now; static const uint64_t DIFF_TO_UNIXTIME = 11644473600000LL; now = (LONGLONG) lastModTime.dwLowDateTime + ((LONGLONG)(lastModTime.dwHighDateTime) << 32LL); *lastModificationTimestamp = (now / 10000LL) - DIFF_TO_UNIXTIME; } if (fileSize != NULL) *fileSize = (uint32_t) fad.nFileSizeLow; return true; } DirectoryHandle FileSystem_openDirectory(char* directoryName) { DirectoryHandle dirHandle = (DirectoryHandle) GLOBAL_CALLOC(1, sizeof(struct sDirectoryHandle)); char fullPath[MAX_PATH + 1]; strncpy(fullPath, directoryName, MAX_PATH - 3); strncat(fullPath, "\\*", MAX_PATH); /* convert UTF-8 path name to WCHAR */ WCHAR unicodeFullPath[MAX_PATH + 1]; MultiByteToWideChar(CP_UTF8, 0, fullPath, -1, unicodeFullPath, MAX_PATH); dirHandle->handle = FindFirstFileW(unicodeFullPath, &(dirHandle->findData)); if (dirHandle->handle != NULL) { dirHandle->available = true; /* convert WCHAR to UTF-8 */ WideCharToMultiByte(CP_UTF8, 0, dirHandle->findData.cFileName, -1, dirHandle->utf8Filename, (MAX_PATH * 3) + 1, NULL, NULL); } if (dirHandle->handle == INVALID_HANDLE_VALUE) { GLOBAL_FREEMEM(dirHandle); return NULL; } else return dirHandle; } static char* getNextDirectoryEntry(DirectoryHandle directory, bool* isDirectory) { if (directory->available == true) { directory->available = false; if (directory->findData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) *isDirectory = true; else *isDirectory = false; return directory->utf8Filename; } else { if (FindNextFileW(directory->handle, &(directory->findData)) != 0) { if (directory->findData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) *isDirectory = true; else *isDirectory = false; /* convert WCHAR to UTF-8 */ WideCharToMultiByte(CP_UTF8, 0, directory->findData.cFileName, -1, directory->utf8Filename, (MAX_PATH * 3) + 1, NULL, NULL); return directory->utf8Filename; } else return NULL; } } bool FileSystem_deleteFile(char* filename) { if (remove(filename) == 0) return true; else return false; } bool FileSystem_renameFile(char* oldFilename, char* newFilename) { if (rename(oldFilename, newFilename) == 0) return true; else return false; } char* FileSystem_readDirectory(DirectoryHandle directory, bool* isDirectory) { char* fileName = getNextDirectoryEntry(directory, isDirectory); if (fileName != NULL) { if (fileName[0] == '.') return FileSystem_readDirectory(directory, isDirectory); else return fileName; } return NULL; } void FileSystem_closeDirectory(DirectoryHandle directory) { FindClose(directory->handle); GLOBAL_FREEMEM(directory); }