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- From: jochen@busybit.mrz.sub.org (Jochen Fahrner)
- Subject: Re: [386bsd] cp something to /bin/cp and cp core dumps; bug or feature?
- X-Md4-Signature: 5629c2ad0e0f4736342a3bf6f68a4646
- Organization: Busybit's Software Labor, D-8068 Pfaffenhofen
- Distribution: comp
- Date: 8 Dec 92 18:56:02
- Message-ID: <JOCHEN.92Dec8185602@busybit.mrz.sub.org>
- In-Reply-To: burgess@hrd769.brooks.af.mil's message of 2 Dec 1992 16:21:18 -0600
- References: <Byn6uL.2oM@ra.nrl.navy.mil> <1992Dec2.185331.57@unislc.uucp>
- <1fjcsuINN2vf@hrd769.brooks.af.mil>
- Sender: jochen@busybit.mrz.lm.sub.org (Jochen Fahrner)
- Lines: 18
-
- In article <1fjcsuINN2vf@hrd769.brooks.af.mil> burgess@hrd769.brooks.af.mil (Dave Burgess) writes:
-
- I have also noticed something that bothers me a little bit. I was ftping
- a bunch of files from point A to point B and managed to ftp /usr/bin/ftp.
- The execed ftp core dumped.
-
- Why?
-
- I have seen the same thing with several other programs (cp, for example).
- What umbilical link is there between a running program and its image on
- disk?
-
- Why is it possible to overwrite a program which is currently executing
- in memory ? I don't know BSD, but in SYSV this is impossible.
-
- Jochen
- --
- Jochen Fahrner, D-8068 Pfaffenhofen, jochen@busybit.mrz.sub.org
-