Re: [PATCH 2/4] short circuit out of a few places where we would allocate zero bytes

From: H. Peter Anvin <hpa@zytor.com>
Date: Dec 28, 2005, 04:22 UTC
Message-ID: <43B21312.50603@zytor.com>
In-Reply-To: <20051224121243.GA3963@mail.yhbt.net>

Eric Wong wrote:

Show 9 quoted lines

> dietlibc versions of malloc, calloc and realloc all return NULL if
> they're told to allocate 0 bytes, causes the x* wrappers to die().
> 
> There are several more places where these calls could end up asking
> for 0 bytes, too...
> 
> Maybe simply not die()-ing in the x* wrappers if 0/NULL is returned
> when the requested size is zero is a safer and easier way to go.
>

Better yet, either always return NULL or allocate 1 byte in that case, to get consistent behaviour.

	-hpa

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