Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!seismo!rutgers!cbmvax!hutch!rabbit1!barber
From: barber@rabbit1.UUCP (Steve Barber)
Newsgroups: comp.unix.wizards
Subject: Appending text to executables
Message-ID: <264@rabbit1.UUCP>
Date: Tue, 20-Jan-87 12:30:18 EST
Article-I.D.: rabbit1.264
Posted: Tue Jan 20 12:30:18 1987
Date-Received: Wed, 21-Jan-87 22:19:57 EST
Organization: Rabbit Software Corp., Malvern PA
Lines: 29
Keywords: copyright a.out

Will anything bad happen if I append arbitrary text to a UNIX executable
(a.out) file?  Basically, I need to have copyright notices physically
present in my a.out files and I don't want to hassle with relinking
the things.  Now, run files don't have checksums, so there shouldn't
be any problem there.  The a.out formats are pretty self-describing, so
I don't think exec(2) will actually load the stuff, but I don't know for
sure.

So, just for the sake of argument and to provide an example, if I did

	cat /bin/sh /etc/group >mysh
	chmod 555 mysh

Would

	mysh

do the right thing?  That is, would it behave identically to /bin/sh?

Are there any versions of UNIX (or derivatives) where this wouldn't work?
Naturally, I'll summarize responses to this most burning of questions.
Thanks in advance. (No, I'm not intending to claim copyright on /bin/sh :-)


	
-- 
Steve Barber    Rabbit Software Corp.
...!ihnp4!{cbmvax,cuuxb}!hutch!barber  ...!psuvax1!burdvax!hutch!barber
(215) 647-0440  7 Great Valley Parkway East  Malvern PA 19355