64 lines
1.7 KiB
C++
64 lines
1.7 KiB
C++
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// Copyright 2014 Citra Emulator Project
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// Licensed under GPLv2
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// Refer to the license.txt file included.
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#include <sys/stat.h>
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#include "common/common_types.h"
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#include "common/file_util.h"
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#include "core/file_sys/file_sdmc.h"
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#include "core/file_sys/archive_sdmc.h"
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// FileSys namespace
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namespace FileSys {
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File_SDMC::File_SDMC(const Archive_SDMC* archive, const std::string& path, const Mode mode) {
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// TODO(Link Mauve): normalize path into an absolute path without "..", it can currently bypass
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// the root directory we set while opening the archive.
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// For example, opening /../../etc/passwd can give the emulated program your users list.
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std::string real_path = archive->GetMountPoint() + path;
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if (!mode.create_flag && !FileUtil::Exists(real_path)) {
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file = nullptr;
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return;
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}
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std::string mode_string;
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if (mode.read_flag)
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mode_string += "r";
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if (mode.write_flag)
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mode_string += "w";
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file = new FileUtil::IOFile(real_path, mode_string.c_str());
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}
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File_SDMC::~File_SDMC() {
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Close();
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}
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size_t File_SDMC::Read(const u64 offset, const u32 length, u8* buffer) const {
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file->Seek(offset, SEEK_SET);
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return file->ReadBytes(buffer, length);
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}
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size_t File_SDMC::Write(const u64 offset, const u32 length, const u32 flush, const u8* buffer) const {
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file->Seek(offset, SEEK_SET);
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size_t written = file->WriteBytes(buffer, length);
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if (flush)
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file->Flush();
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return written;
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}
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size_t File_SDMC::GetSize() const {
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return file->GetSize();
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}
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bool File_SDMC::Close() const {
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return file->Close();
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}
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} // namespace FileSys
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