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From: dhesi@bsu-cs.UUCP (Rahul Dhesi)
Newsgroups: comp.sources.bugs
Subject: Re: uupc for MS-DOS problem
Message-ID: <1111@bsu-cs.UUCP>
Date: Sat, 5-Sep-87 20:56:45 EDT
Article-I.D.: bsu-cs.1111
Posted: Sat Sep  5 20:56:45 1987
Date-Received: Sun, 6-Sep-87 09:12:54 EDT
References: <339@gsg.UUCP>
Reply-To: dhesi@bsu-cs.UUCP (Rahul Dhesi)
Organization: CS Dept, Ball St U, Muncie, Indiana
Lines: 34
Keywords: COM1=a COM2=b
Summary: source code is correct but not consistent with doc and binary

>sscanf(name, "COM%d", &i);

I have just finished converting the posted uupc source to compile and
run using Turbo C.

The source code is correct.  The problem that the original poster
observed was probably caused by the fact that the source code as posted
seems not to be the source code that was actually used to generate the
posted compiled code.  One of the documentation files says that the
port must be called "COM1" or "COM2."  The above sscanf should work
correctly if this is so.

BUT one of the example files, called Systems, uses a different
convention for the port name:  it uses "a" instead of "COM1" and,
presumably, would use "b" instead of "COM2".  And the binary that was
posted actually seems to accept "a" if you want to use COM1.

So if you compile the source, you need to simply make your Systmes file
say "COM1" where it currently says "a".

However, to maintain compatibility with the posted binary, I chose to
change the source code to accept both "a" and "COM1" for the first port
and both "b" and "COM2" for the second port.

Regrettably, I did not follow the admonishment that users change only
the system-dependent portions of the code.  There were a lot of unused
variables that I removed.  There were quite a few undeclared functions
throughout the source that I declared.  There were a few other minor
things that I wasn't happy leaving unchanged.  One or two compiler-
specific header files had to be changed.  Not all these changes were
necessary, but I like to leave all of Turbo C's warning messages turned
on so I made the changes.
-- 
Rahul Dhesi         UUCP:  {ihnp4,seismo}!{iuvax,pur-ee}!bsu-cs!dhal