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1991-01-11
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DATPATCH.C
DATPATCH is a quick and dirty utility I wrote to patch the
current date-time into an executable module.
The company I work for uses SNA LU 0 for file transfer.
When we send maintenance code, the date-time stamp on the
.EXE file is changed during transmission and the file size
is rounded up to a 256-byte multiple. This has caused
problems in determining which module was actually in use at
the site. So I devised a quick method of applying the date-
time to a string imbedded in the .EXE module. I included a
string constant, then wrote a small program to locate that
string and replace it with the current system date and time.
In order to use the utility, perform the following steps:
1) Include the following string in your program:
char str[] = "COMPILED ON MM/DD/YY - HH:MM";
2) Add the following command after the compile and link:
DATPATCH program.exe
where "program.exe" is the .EXE to be modified.
This implementation is not the most creative or efficient
but it works. It is written in ANSI C, and should be
portable to most C environments. The version included in
this package is already compiled using the MAKEIT.BAT and is
linked as a family-mode program.
Howard K. Warren
Scholarship Consulting of Arkansas
P.O. Box 488
Little Rock, AR 72203
January 11, 1991