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Date:      Fri, 29 Oct 1999 13:15:59 -0400
From:      Greg Lehey <grog@lemis.com>
To:        Poul-Henning Kamp <phk@critter.freebsd.dk>
Cc:        Sheldon Hearn <sheldonh@FreeBSD.ORG>, cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG
Subject:   Re: cvs commit: src/usr.sbin/vipw vipw.c
Message-ID:  <19991029131559.13829@mojave.worldwide.lemis.com>
In-Reply-To: <4562.941215109@critter.freebsd.dk>; from Poul-Henning Kamp on Fri, Oct 29, 1999 at 06:38:29PM %2B0200
References:  <19991025100200.60989@mojave.worldwide.lemis.com> <4562.941215109@critter.freebsd.dk>

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On Friday, 29 October 1999 at 18:38:29 +0200, Poul-Henning Kamp wrote:
> In message <19991025100200.60989@mojave.worldwide.lemis.com>, Greg Lehey writes:
>> On Monday, 25 October 1999 at  2:46:59 -0700, Sheldon Hearn wrote:
>>> sheldonh    1999/10/25 02:46:59 PDT
>>>
>>>   Modified files:
>>>     usr.sbin/vipw        vipw.c
>>>   Log:
>>>   Do not rely on malloc() to zero-fill allocated memory, since it is
>>>   not documented as doing so.  This fixes a potential segmentation
>>>   violation.
>>
>> For performance reasons, I'd strongly hope that malloc() doesn't clear
>> memory.
>
> RTFM ?

I suppose so.  But I thought it so obvious a bad point for normal use
that I was looking more at the theory than the practice.

BTW, why a file when you could have an environment variable or a
sysctl?

Greg
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