|
|
// Copyright 2014 Citra Emulator Project
|
|
|
// Licensed under GPLv2
|
|
|
// Refer to the license.txt file included.
|
|
|
|
|
|
#include <sys/stat.h>
|
|
|
|
|
|
#include "common/common_types.h"
|
|
|
#include "common/file_util.h"
|
|
|
|
|
|
#include "core/file_sys/file_sdmc.h"
|
|
|
#include "core/file_sys/archive_sdmc.h"
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
// FileSys namespace
|
|
|
|
|
|
namespace FileSys {
|
|
|
|
|
|
File_SDMC::File_SDMC(const Archive_SDMC* archive, const std::string& path, const Mode mode) {
|
|
|
// TODO(Link Mauve): normalize path into an absolute path without "..", it can currently bypass
|
|
|
// the root directory we set while opening the archive.
|
|
|
// For example, opening /../../etc/passwd can give the emulated program your users list.
|
|
|
this->path = archive->GetMountPoint() + path;
|
|
|
this->mode.hex = mode.hex;
|
|
|
}
|
|
|
|
|
|
File_SDMC::~File_SDMC() {
|
|
|
Close();
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Open the file
|
|
|
* @return true if the file opened correctly
|
|
|
*/
|
|
|
bool File_SDMC::Open() {
|
|
|
if (!mode.create_flag && !FileUtil::Exists(path)) {
|
|
|
ERROR_LOG(FILESYS, "Non-existing file %s can’t be open without mode create.", path.c_str());
|
|
|
return false;
|
|
|
}
|
|
|
|
|
|
std::string mode_string;
|
|
|
if (mode.read_flag && mode.write_flag)
|
|
|
mode_string = "w+";
|
|
|
else if (mode.read_flag)
|
|
|
mode_string = "r";
|
|
|
else if (mode.write_flag)
|
|
|
mode_string = "w";
|
|
|
|
|
|
file = new FileUtil::IOFile(path, mode_string.c_str());
|
|
|
return true;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Read data from the file
|
|
|
* @param offset Offset in bytes to start reading data from
|
|
|
* @param length Length in bytes of data to read from file
|
|
|
* @param buffer Buffer to read data into
|
|
|
* @return Number of bytes read
|
|
|
*/
|
|
|
size_t File_SDMC::Read(const u64 offset, const u32 length, u8* buffer) const {
|
|
|
file->Seek(offset, SEEK_SET);
|
|
|
return file->ReadBytes(buffer, length);
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Write data to the file
|
|
|
* @param offset Offset in bytes to start writing data to
|
|
|
* @param length Length in bytes of data to write to file
|
|
|
* @param flush The flush parameters (0 == do not flush)
|
|
|
* @param buffer Buffer to read data from
|
|
|
* @return Number of bytes written
|
|
|
*/
|
|
|
size_t File_SDMC::Write(const u64 offset, const u32 length, const u32 flush, const u8* buffer) const {
|
|
|
file->Seek(offset, SEEK_SET);
|
|
|
size_t written = file->WriteBytes(buffer, length);
|
|
|
if (flush)
|
|
|
file->Flush();
|
|
|
return written;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Get the size of the file in bytes
|
|
|
* @return Size of the file in bytes
|
|
|
*/
|
|
|
size_t File_SDMC::GetSize() const {
|
|
|
return static_cast<size_t>(file->GetSize());
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Set the size of the file in bytes
|
|
|
* @param size New size of the file
|
|
|
* @return true if successful
|
|
|
*/
|
|
|
bool File_SDMC::SetSize(const u64 size) const {
|
|
|
file->Resize(size);
|
|
|
file->Flush();
|
|
|
return true;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Close the file
|
|
|
* @return true if the file closed correctly
|
|
|
*/
|
|
|
bool File_SDMC::Close() const {
|
|
|
return file->Close();
|
|
|
}
|
|
|
|
|
|
} // namespace FileSys
|