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Re: Purified zsh-3.0.1
- X-seq: zsh-workers 2360
- From: Hrvoje Niksic <hniksic@xxxxxxx>
- To: Geoff Wing <gwing@xxxxxxxxxxxxxxx>
- Subject: Re: Purified zsh-3.0.1
- Date: 10 Nov 1996 06:22:54 +0100
- Cc: zsh-workers@xxxxxxxxxxxxxxx
- In-reply-to: Geoff Wing's message of Sun, 10 Nov 1996 16:12:41 +1100 (EST)
- References: <199611100512.QAA03809@xxxxxxxxxxxxxxxxxxxxx>
- Sender: hniksic@xxxxxxxxxxxxxx
Geoff Wing (gwing@xxxxxxxxxxxxxxx) wrote:
> :I hope this will help debugging... Those ABR-s in line editor could
> :be the cause of coredumps seen on Ultrix, that are quite hard to
> :repeat.
> This is a patch (on top of 2351 and its predecessor though it'll
> patch without them)
I applied the patch manually.
> I believe it will fix said problem.
Yup, that fixes it (at least I cannot repeat it anymore). Anyway, zsh
is very stable, in the sense of purify. Now there are no more
array-bound reads or writes.
> It doesn't seem likely to me that it would be the cause of any
> coredumps.
But it is possible, as soon as you read memory outside of the
allocated block, isn't it? The fact that the read was off-by-one
could account for those dumps being hard to repeat.
--
Hrvoje Niksic <hniksic@xxxxxxx> | Student at FER Zagreb, Croatia
--------------------------------+--------------------------------
main(){printf(&unix["\021%six\012\0"],(unix)["have"]+"fun"-0x60);}
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