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// 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.
std::string real_path = archive->GetMountPoint() + path;
if (!mode.create_flag && !FileUtil::Exists(real_path)) {
file = nullptr;
return;
}
std::string mode_string;
if (mode.read_flag)
mode_string += "r";
if (mode.write_flag)
mode_string += "w";
file = new FileUtil::IOFile(real_path, mode_string.c_str());
}
File_SDMC::~File_SDMC() {
Close();
}
size_t File_SDMC::Read(const u64 offset, const u32 length, u8* buffer) const {
file->Seek(offset, SEEK_SET);
return file->ReadBytes(buffer, length);
}
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;
}
size_t File_SDMC::GetSize() const {
return static_cast<size_t>(file->GetSize());
}
bool File_SDMC::Close() const {
return file->Close();
}
} // namespace FileSys
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