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Top Forums Programming UDP File Transfer Validation and Checksum Post 302227498 by cbkihong on Thursday 21st of August 2008 10:01:01 AM
Old 08-21-2008
The page quoted by otheus came from the book "Computer Networking - a top-down approach featuring the Internet" with Kurose as one of the authors (Addison Wesley). Consider getting yourself a copy of that one. It was the textbook for networking course in my university.

Specifically, Section 3.4 "Principles of Reliable Data Transfer" discusses the various approaches of developing reliable data transfer over an unreliable transport. That section should answer your question.
 

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MFT(1)							      General Commands Manual							    MFT(1)

NAME
mft - translate Metafont or MetaPost code to TeX code for prettyprinting SYNOPSIS
mft [OPTIONS] mf_file_name[.mf|.mp] DESCRIPTION
This manual page is not meant to be exhaustive. The complete documentation for this version of TeX can be found in the info file or manual Web2C: A TeX implementation. The mft program creates a TeX file from a Metafont or MetaPost program. It takes appropriate care of typographic details like page layout and the use of indentation, italics, boldface, etc., as illustrated in the book Computer Modern Typefaces. Special conventions in Metafont and MetaPost comments allow you to control things that would not otherwise come out right; section 1 of the MFT source program in the Meta- fontware report explains these rules. The mft program uses an optional change file (which works just as the change files to tangle(1) and weave(1) do) and one or several style files (which are prepended to everything). If no style file is specified, the style file plain.mft for Metafont (or mplain.mft for Meta- Post) is automatically used. The mf_file_name, optional change_file_name, and style_file_name files are searched for using the MFINPUTS (for Metafont) or MPINPUTS (for MetaPost) and MFTINPUTS environment variables if you have set them, or else the corresponding system defaults. The output TeX file name is formed by using .tex in place of the extension of mf_file_name. OPTIONS
-change=change_file_name[.ch] Apply the change file change_file_name to mf_file_name. -metapost Assume mf_file_name is a MetaPost source file (this is the default if mf_file_name has the extension .mp). -style=style_file_name[.mft] Use the style file style_file_name insted of plain.mft (or mplain.mft); this option can be given more than once. FILES
mftmac.tex TeX macros used by mft output. plain.mft, mplain.mft Default style files. cmbase.mft Style file for Computer Modern. SEE ALSO
mf(1), weave(1). Donald E. Knuth, Computer Modern Typefaces (Volume E of Computers and Typesetting), Addison-Wesley, 1986, ISBN 0-201-13446-2. Donald E. Knuth et al., Metafontware. AUTHORS
Donald E. Knuth wrote the program, and he ported it to Unix with the help of Pierre MacKay and the Unix port of weave by Howard Trickey and Pavel Curtis. The program is published in the Metafontware technical report, available from the TeX Users Group. Web2C 2012 14 December 1993 MFT(1)
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