diff -r ea891871f481 -r bb5522e88ab2 misc/libphysfs/lzma/CPP/Common/C_FileIO.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/libphysfs/lzma/CPP/Common/C_FileIO.cpp	Mon Apr 10 12:06:43 2017 -0400
@@ -0,0 +1,88 @@
+// Common/C_FileIO.h
+
+#include "C_FileIO.h"
+
+#include <fcntl.h>
+#include <unistd.h>
+
+namespace NC {
+namespace NFile {
+namespace NIO {
+
+bool CFileBase::OpenBinary(const char *name, int flags)
+{
+  #ifdef O_BINARY
+  flags |= O_BINARY;
+  #endif
+  Close();
+  _handle = ::open(name, flags, 0666);
+  return _handle != -1;
+}
+
+bool CFileBase::Close()
+{
+  if(_handle == -1)
+    return true;
+  if (close(_handle) != 0)
+    return false;
+  _handle = -1;
+  return true;
+}
+
+bool CFileBase::GetLength(UInt64 &length) const
+{
+  off_t curPos = Seek(0, SEEK_CUR);
+  off_t lengthTemp = Seek(0, SEEK_END);
+  Seek(curPos, SEEK_SET);
+  length = (UInt64)lengthTemp;
+  return true;
+}
+
+off_t CFileBase::Seek(off_t distanceToMove, int moveMethod) const
+{
+  return ::lseek(_handle, distanceToMove, moveMethod);
+}
+
+/////////////////////////
+// CInFile
+
+bool CInFile::Open(const char *name)
+{
+  return CFileBase::OpenBinary(name, O_RDONLY);
+}
+
+bool CInFile::OpenShared(const char *name, bool)
+{
+  return Open(name);
+}
+
+ssize_t CInFile::Read(void *data, size_t size)
+{
+  return read(_handle, data, size);
+}
+
+/////////////////////////
+// COutFile
+
+bool COutFile::Create(const char *name, bool createAlways)
+{
+  if (createAlways)
+  {
+    Close();
+    _handle = ::creat(name, 0666);
+    return _handle != -1;
+  }
+  return OpenBinary(name, O_CREAT | O_EXCL | O_WRONLY);
+}
+
+bool COutFile::Open(const char *name, DWORD creationDisposition)
+{
+  return Create(name, false);
+}
+
+ssize_t COutFile::Write(const void *data, size_t size)
+{
+  return write(_handle, data, size);
+}
+
+}}}