Utility to manipulate CP/M LU format libraries. Originally written by Stephen C. Hemminger, a long time ago (1980s?). This is my modified version: the C syntax has been modernised, and a Makefile added.
I started with the code from here: https://dflund.se/~pi/cpm/files/ftp.unicamp.br/pub/unix-c/cpm/lar.c.gz
Original license:
This program is public domain software, no warranty intended or
implied.
I release all my changes under the same terms.
I have put CC0 in the LICENSE file, which (in my personal opinion) is legally
equivalent to the above.
Usage: lar key library [files] ...
Key functions are:
u - Update, add files to library
t - Table of contents
e - Extract files from library
p - Print files in library
d - Delete files in library
r - Reorginize library
Other keys:
v - Verbose
DESCRPTION
Lar is a Unix program to manipulate CP/M LU format libraries.
The original CP/M library program LU is the product
of Gary P. Novosielski. The primary use of lar is to combine several
files together for upload/download to a personal computer.
PORTABILITY
The code is modeled after the Software tools archive program,
and is setup for Version 7 Unix. It does not make any assumptions
about byte ordering, explict and's and shift's are used.
If you have a dumber C compiler, you may have to recode new features
like structure assignment, typedef's and enumerated types.
BUGS/MISFEATURES
The biggest problem is text files, the programs tries to detect
text files vs. binaries by checking for non-Ascii (8th bit set) chars.
If the file is text then it will throw away Control-Z chars which
CP/M puts on the end. All files in library are padded with Control-Z
at the end to the CP/M sector size if necessary.
No effort is made to handle the difference between CP/M and Unix
end of line chars. CP/M uses Cr/Lf and Unix just uses LF.
The solution is just to use the Unix command sed when necessary.