This project is a fork of OpenSSH
sftp-server which calls directly into the Win32 API, instead of
using any other POSIX/Unix/Linux/C emulation layer (i.e. Cygwin).
Note that it does not implement or provide the SSH layer.
The sftp-server.exe program is compiled using MinGW-w64.
The included Makefile works in recents Ubuntus. But it should be
pretty easy to compile it in any other environment with minor tweaks.
The filesystem ownership and permissions model supported by the SFTP protocol version 3, does not fit the one provided by Windows (for instance, it doesn't use integers as user -uid- an group -gid- identificators, neither has it the concept of user, group and other permissions).
As such, file system permissions appear always as 0700 or 0600 and no ownership information is transmitted to the SFTP client.
Conversely, on write operations, permission and ownership information is not influenced by the information comming from the client.
Automatic translation of the UTF-16 (WTF-16?) encoding used natively in Windows file systems and UTF-8 is performed on the fly.
That means that there are some file names, valid on Windows that will fail to be converted to UTF-8 (moving to WTF-8 encoding is in the TODO list).
Path length is limited to the 260 characters supported by the Win32 API.
On recent versions of Windows 10, this limitation can be overcome editing some registry entries.
Symbolic links work as long as the underlaying file system supports then and the logged user has the required permissions... which, in practice, is quite unlikely!
This program is based on the OpenSSH sftp-server code and uses the
same license (see OpenSSH-LICENCE).
- Copyright (c) 1995 Tatu Ylonen ylo@cs.hut.fi, Espoo, Finland.
- Copyright (c) 1999-2008 Markus Friedl. All rigths reserved.
- Copyright (c) 2001-2012 Damien Miller. All rigths reserved.
- Copyright (c) 2016 Qindel Formacion y Servicios SL. All rigths reserved.