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Serial Backup Client/Server
===========================
This software is designed to backup MS-DOS systems over a
serial link to a modern-ish computer. The software is
comprised of two components: a C client program running
on MS-DOS and a Python server script that listens for and
accepts files over a serial link. The software is
designed for minimal user interaction so that a MS-DOS
machine may be backed up in its entirety, including
preserving the directory structure.
The program uses a simplistic protocol that should be
mildly, but not particularly, robust. Everything should
work smoothly on a null modem link, but it might
encounter trouble over a phone line. The protocol, which
sends a block followed by a checksum, is not resilient
against dropped bytes, for example.
Because the tranfers are done via a serial link, one
should expect the full backup to take a substantial
amount of time to complete. 20MB at 19200bps will take
several hours to complete.
This software was written for a personal need. However,
I'll be happy to provide any improvements if anyone has a
suggestion or two.
---
Jeffrey Armstrong
October 9, 2015
License
=======
Serial Backup Server
Copyright (C) 2015 Jeffrey Armstrong <jeff@rainbow-100.com>
http://jeff.rainbow-100.com/
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
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