Re: truncate("x", -1)

From: Florian Weimer (fwat_private)
Date: Mon Apr 19 1999 - 23:46:48 PDT

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David Luyer <luyerat_private> writes:

> The argument to [f]truncate is meant to be a size_t not a ssize_t, so
> probably this is a signed/unsigned bug.  The man page says that it should
> truncate a file to at most the specified size, so the correct behaviour
> should be
>
>   truncate("x", -1)
>   kernel: current size 0 < new size 2^32 - 1
>   kernel: return success with no action

According to the Single UNIX specification, EINVAL should be returned
in this case, and Linux 2.2.6 does so.

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