1 files changed, 107 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..26204392c
--- /dev/null
+++ b/src/core/file_sys/file_sdmc.cpp
@@ -0,0 +1,107 @@
+// 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