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-rw-r--r--src/common/src/file_utils.cpp451
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diff --git a/src/common/src/file_utils.cpp b/src/common/src/file_utils.cpp
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-/**
-* Copyright (C) 2005-2013 Gekko Emulator
-*
-* @file file_utils.cpp
-* @author ShizZy <shizzy247@gmail.com>
-* @date 2013-01-27
-* @brief Crossplatform file utility functions
-* @remark Borrowed from Dolphin Emulator
-*
-* @section LICENSE
-* This program 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 2 of
-* the License, or (at your option) any later version.
-*
-* This program 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 at
-* http://www.gnu.org/copyleft/gpl.html
-*
-* Official project repository can be found at:
-* http://code.google.com/p/gekko-gc-emu/
-*/
-
-#include "types.h"
-#include "file_utils.h"
-
-#ifdef _WIN32
-#include <windows.h>
-#include <shlobj.h> // for SHGetFolderPath
-#include <shellapi.h>
-#include <commdlg.h> // for GetSaveFileName
-#include <io.h>
-#include <direct.h> // getcwd
-#else
-#include <sys/param.h>
-#include <sys/types.h>
-#include <dirent.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <unistd.h>
-#endif
-
-#if defined(__APPLE__)
-#include <CoreFoundation/CFString.h>
-#include <CoreFoundation/CFURL.h>
-#include <CoreFoundation/CFBundle.h>
-#endif
-
-#include <fstream>
-#include <sys/stat.h>
-
-#ifndef S_ISDIR
-#define S_ISDIR(m) (((m)&S_IFMT) == S_IFDIR)
-#endif
-
-#ifdef BSD4_4
-#define stat64 stat
-#define fstat64 fstat
-#endif
-
-#ifdef _MSC_VER
-#define __strdup _strdup
-#define __getcwd _getcwd
-#define __chdir _chdir
-
-#define fseeko _fseeki64
-#define ftello _ftelli64
-#define atoll _atoi64
-#define stat64 _stat64
-#define fstat64 _fstat64
-#define fileno _fileno
-
-#else
-#define __strdup strdup
-#define __getcwd getcwd
-#define __chdir chdir
-#endif
-
-namespace common {
-
-// Remove any ending forward slashes from directory paths
-// Modifies argument.
-static void StripTailDirSlashes(std::string &fname) {
- if (fname.length() > 1) {
- size_t i = fname.length() - 1;
- while (fname[i] == '/') {
- fname[i--] = '\0';
- }
- }
-}
-
-// Returns true if file filename exists
-bool FileExists(const std::string &filename) {
- struct stat64 file_info;
- std::string copy(filename);
- StripTailDirSlashes(copy);
- return (stat64(copy.c_str(), &file_info) == 0);
-}
-
-// Returns true if filename is a directory
-bool IsDirectory(const std::string &filename) {
- struct stat64 file_info;
- std::string copy(filename);
- StripTailDirSlashes(copy);
- if (stat64(copy.c_str(), &file_info) < 0) {
- LOG_WARNING(TCOMMON, "IsDirectory: stat failed on %s", filename.c_str());
- return false;
- }
- return S_ISDIR(file_info.st_mode);
-}
-
-// Deletes a given filename, return true on success
-// Doesn't supports deleting a directory
-bool DeleteFile(const std::string &filename) {
- LOG_INFO(TCOMMON, "Delete: file %s", filename.c_str());
- // Return true because we care about the file no
- // being there, not the actual delete.
- if (!FileExists(filename)) {
- LOG_WARNING(TCOMMON, "Delete: %s does not exists", filename.c_str());
- return true;
- }
- // We can't delete a directory
- if (IsDirectory(filename)) {
- LOG_WARNING(TCOMMON, "Delete failed: %s is a directory", filename.c_str());
- return false;
- }
-#ifdef _WIN32
- if (!DeleteFile(filename.c_str())) {
- LOG_WARNING(TCOMMON, "Delete: DeleteFile failed on %s", filename.c_str());
- return false;
- }
-#else
- if (unlink(filename.c_str()) == -1) {
- LOG_WARNING(TCOMMON, "Delete: unlink failed on %s", filename.c_str());
- return false;
- }
-#endif
- return true;
-}
-
-// Returns true if successful, or path already exists.
-bool CreateDir(const std::string &path) {
- LOG_INFO(TCOMMON, "CreateDir: directory %s", path.c_str());
-#ifdef _WIN32
- if (::CreateDirectory(path.c_str(), NULL)) {
- return true;
- }
- DWORD error = GetLastError();
- if (error == ERROR_ALREADY_EXISTS)
- {
- LOG_WARNING(TCOMMON, "CreateDir: CreateDirectory failed on %s: already exists", path.c_str());
- return true;
- }
- LOG_ERROR(TCOMMON, "CreateDir: CreateDirectory failed on %s: %i", path.c_str(), error);
- return false;
-#else
- if (mkdir(path.c_str(), 0755) == 0) {
- return true;
- }
- int err = errno;
- if (err == EEXIST) {
- LOG_WARNING(TCOMMON, "CreateDir: mkdir failed on %s: already exists", path.c_str());
- return true;
- }
- LOG_ERROR(TCOMMON, "CreateDir: mkdir failed on %s: %s", path.c_str(), strerror(err));
- return false;
-#endif
-}
-
-// Creates the full path of fullPath returns true on success
-bool CreateFullPath(const std::string &fullPath) {
- int panicCounter = 100;
- LOG_INFO(TCOMMON, "CreateFullPath: path %s", fullPath.c_str());
-
- if (FileExists(fullPath)) {
- LOG_INFO(TCOMMON, "CreateFullPath: path exists %s", fullPath.c_str());
- return true;
- }
-
- size_t position = 0;
- while (1) {
- // Find next sub path
- position = fullPath.find('/', position);
-
- // we're done, yay!
- if (position == fullPath.npos) {
- return true;
- }
- std::string subPath = fullPath.substr(0, position);
- if (!IsDirectory(subPath)) CreateDir(subPath);
-
- // A safety check
- panicCounter--;
- if (panicCounter <= 0) {
- LOG_ERROR(TCOMMON, "CreateFullPath: directory structure too deep");
- return false;
- }
- position++;
- }
-}
-
-// Deletes a directory filename, returns true on success
-bool DeleteDir(const std::string &filename) {
- LOG_INFO(TCOMMON, "DeleteDir: directory %s", filename.c_str());
- // check if a directory
- if (!IsDirectory(filename)) {
- LOG_ERROR(TCOMMON, "DeleteDir: Not a directory %s", filename.c_str());
- return false;
- }
-#ifdef _WIN32
- if (::RemoveDirectory(filename.c_str()))
- return true;
-#else
- if (rmdir(filename.c_str()) == 0)
- return true;
-#endif
- LOG_ERROR(TCOMMON, "DeleteDir: %s", filename.c_str());
- return false;
-}
-
-// renames file srcFilename to destFilename, returns true on success
-bool RenameFile(const std::string &srcFilename, const std::string &destFilename) {
- LOG_INFO(TCOMMON, "Rename: %s --> %s",
- srcFilename.c_str(), destFilename.c_str());
- if (rename(srcFilename.c_str(), destFilename.c_str()) == 0)
- return true;
- LOG_ERROR(TCOMMON, "Rename: failed %s --> %s", srcFilename.c_str(), destFilename.c_str());
- return false;
-}
-
-// copies file srcFilename to destFilename, returns true on success
-bool CopyFile(const std::string &srcFilename, const std::string &destFilename) {
- LOG_INFO(TCOMMON, "Copy: %s --> %s",
- srcFilename.c_str(), destFilename.c_str());
-#ifdef _WIN32
- if (::CopyFile(srcFilename.c_str(), destFilename.c_str(), FALSE))
- return true;
-
- LOG_ERROR(TCOMMON, "Copy: failed %s --> %s", srcFilename.c_str(), destFilename.c_str());
- return false;
-#else
- char buffer[1024];
-
- // Open input file
- FILE *input = fopen(srcFilename.c_str(), "rb");
- if (!input) {
- LOG_ERROR(TCOMMON, "Copy: input failed %s --> %s", srcFilename.c_str(),
- destFilename.c_str());
- return false;
- }
- // open output file
- FILE *output = fopen(destFilename.c_str(), "wb");
- if (!output) {
- fclose(input);
- LOG_ERROR(TCOMMON, "Copy: output failed %s --> %s", srcFilename.c_str(),
- destFilename.c_str());
- return false;
- }
- // copy loop
- while (!feof(input)) {
- // read input
- int rnum = fread(buffer, sizeof(char), 1024, input);
- if (rnum != 1024) {
- if (ferror(input) != 0) {
- LOG_ERROR(TCOMMON, "Copy: failed reading from source, %s --> %s",
- srcFilename.c_str(), destFilename.c_str());
- goto bail;
- }
- }
- // write output
- int wnum = fwrite(buffer, sizeof(char), rnum, output);
- if (wnum != rnum) {
- LOG_ERROR(TCOMMON, "Copy: failed writing to output, %s --> %s",
- srcFilename.c_str(), destFilename.c_str());
- goto bail;
- }
- }
- // close flushs
- fclose(input);
- fclose(output);
- return true;
-bail:
- if (input)
- fclose(input);
- if (output)
- fclose(output);
- return false;
-#endif
-}
-
-// Returns the size of filename (64bit)
-u64 GetFileSize(const std::string &filename) {
- if (!FileExists(filename)) {
- LOG_WARNING(TCOMMON, "GetSize: failed %s: No such file", filename.c_str());
- return 0;
- }
- if (IsDirectory(filename)) {
- LOG_WARNING(TCOMMON, "GetSize: failed %s: is a directory", filename.c_str());
- return 0;
- }
- struct stat64 buf;
- if (stat64(filename.c_str(), &buf) == 0) {
- LOG_DEBUG(TCOMMON, "GetSize: %s: %lld", filename.c_str(), (long long)buf.st_size);
- return buf.st_size;
- }
- LOG_ERROR(TCOMMON, "GetSize: Stat failed %s", filename.c_str());
- return 0;
-}
-
-// Overloaded GetSize, accepts file descriptor
-u64 GetFileSize(const int fd) {
- struct stat64 buf;
- if (fstat64(fd, &buf) != 0) {
- LOG_ERROR(TCOMMON, "GetSize: stat failed %i", fd);
- return 0;
- }
- return buf.st_size;
-}
-
-// Overloaded GetSize, accepts FILE*
-u64 GetFileSize(FILE *f) {
- // can't use off_t here because it can be 32-bit
- u64 pos = ftello(f);
- if (fseeko(f, 0, SEEK_END) != 0) {
- LOG_ERROR(TCOMMON, "GetSize: seek failed %p", f);
- return 0;
- }
- u64 size = ftello(f);
- if ((size != pos) && (fseeko(f, pos, SEEK_SET) != 0)) {
- LOG_ERROR(TCOMMON, "GetSize: seek failed %p", f);
- return 0;
- }
- return size;
-}
-
-// creates an empty file filename, returns true on success
-bool CreateEmptyFile(const std::string &filename) {
- LOG_INFO(TCOMMON, "CreateEmptyFile: %s", filename.c_str());
-
- FILE *pFile = fopen(filename.c_str(), "wb");
- if (!pFile) {
- LOG_ERROR(TCOMMON, "CreateEmptyFile: failed %s", filename.c_str());
- return false;
- }
- fclose(pFile);
- return true;
-}
-
-// Deletes the given directory and anything under it. Returns true on success.
-bool DeleteDirRecursively(const std::string &directory) {
- LOG_INFO(TCOMMON, "DeleteDirRecursively: %s", directory.c_str());
-#ifdef _WIN32
- // Find the first file in the directory.
- WIN32_FIND_DATA ffd;
- HANDLE hFind = FindFirstFile((directory + "\\*").c_str(), &ffd);
-
- if (hFind == INVALID_HANDLE_VALUE) {
- FindClose(hFind);
- return false;
- }
-
- // windows loop
- do {
- const std::string virtualName = ffd.cFileName;
-#else
- struct dirent dirent, *result = NULL;
- DIR *dirp = opendir(directory.c_str());
- if (!dirp) {
- return false;
- }
- // non windows loop
- while (!readdir_r(dirp, &dirent, &result) && result) {
- const std::string virtualName = result->d_name;
-#endif
- // check for "." and ".."
- if (((virtualName[0] == '.') && (virtualName[1] == '\0')) ||
- ((virtualName[0] == '.') && (virtualName[1] == '.') &&
- (virtualName[2] == '\0'))) {
- continue;
- }
- std::string newPath = directory + '/' + virtualName;
- if (IsDirectory(newPath)) {
- if (!DeleteDirRecursively(newPath))
- return false;
- } else {
- if (!DeleteFile(newPath))
- return false;
- }
-
-#ifdef _WIN32
- } while (FindNextFile(hFind, &ffd) != 0);
- FindClose(hFind);
-#else
- }
- closedir(dirp);
-#endif
- DeleteDir(directory);
-
- return true;
-}
-
-// Returns the current directory
-std::string GetCurrentDir() {
- char *dir;
- // Get the current working directory (getcwd uses malloc)
- if (!(dir = __getcwd(NULL, 0))) {
-
- LOG_ERROR(TCOMMON, "GetCurrentDirectory failed:");
- return NULL;
- }
- std::string strDir = dir;
- free(dir);
- return strDir;
-}
-
-// Sets the current directory to the given directory
-bool SetCurrentDir(const std::string &directory) {
- return __chdir(directory.c_str()) == 0;
-}
-
-bool WriteStringToFile(bool text_file, const std::string &str, const char *filename) {
- FILE *f = fopen(filename, text_file ? "w" : "wb");
- if (!f) {
- return false;
- }
- size_t len = str.size();
- if (len != fwrite(str.data(), 1, str.size(), f)) {
- fclose(f);
- return false;
- }
- fclose(f);
- return true;
-}
-
-bool ReadFileToString(bool text_file, const char *filename, std::string &str) {
- FILE *f = fopen(filename, text_file ? "r" : "rb");
- if (!f) {
- return false;
- }
- size_t len = (size_t)GetFileSize(f);
- char *buf = new char[len + 1];
- buf[fread(buf, 1, len, f)] = 0;
- str = std::string(buf, len);
- fclose(f);
- delete [] buf;
- return true;
-}
-
-} // namespace
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