Re: Moving back the system clock

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#61

From: Warner Losh
Date: Mon, 05 Oct 1992 23:34

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In article <JEFF.92Oct4154740@dsp.sps.mot.com> jeff@dsp.sps.mot.com (Jeff Enderwick) writes:
>>Or ptrace to change the values that come back from stat(), etc.
>Wouldn't this make your application really pokey, since ptrace would trap on
>*every* syscall?

Not if you stopped ptracing after you knew that the magic file(s) had
been stated.  On systems with /dev/proc, you can selectively trap
system calls.

Warner
-- 
Warner Losh		imp@parcplace.COM	ParcPlace Boulder
I've almost finished my brute force solution to subtlety.

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Message-ID: <Bvo9HE.3F5@solbourne.com>

Path: arc1-ca.pugleaf.net!sparky!uunet!stan!imp

References: <1992Oct2.172120.28771@news.duc.auburn.edu> <BvIK4I.n15@solbourne.com> <JEFF.92Oct4154740@dsp.sps.mot.com>

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Newsgroups: comp.software.licensing
Path: arc1-ca.pugleaf.net!sparky!uunet!stan!imp
From: imp@solbourne.com (Warner Losh)
Subject: Re: Moving back the system clock
Message-ID: <Bvo9HE.3F5@solbourne.com>
Organization: ParcPlace Boulder
References: <1992Oct2.172120.28771@news.duc.auburn.edu> <BvIK4I.n15@solbourne.com> <JEFF.92Oct4154740@dsp.sps.mot.com>
Date: Mon, 5 Oct 1992 23:34:25 GMT
Lines: 13

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