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author | Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> | 2014-09-12 00:44:16 +0200 |
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committer | Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> | 2014-09-17 16:35:45 +0200 |
commit | e73caaefe58503f7d1d79a08e71bf66b5fe6edba (patch) | |
tree | fda0ffc5bc226d2cefc3dfa376f4ac78a7666bfb /src/core/file_sys/file_sdmc.cpp | |
parent | Core: Add a new File class, obtainable from an Archive, and a stub implementation. (diff) | |
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Diffstat (limited to 'src/core/file_sys/file_sdmc.cpp')
-rw-r--r-- | src/core/file_sys/file_sdmc.cpp | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/src/core/file_sys/file_sdmc.cpp b/src/core/file_sys/file_sdmc.cpp new file mode 100644 index 000000000..76adc6403 --- /dev/null +++ b/src/core/file_sys/file_sdmc.cpp @@ -0,0 +1,63 @@ +// 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 file->GetSize(); +} + +bool File_SDMC::Close() const { + return file->Close(); +} + +} // namespace FileSys |