add closefrom() call

[Ed Schouten]

* Julian Elischer <julian at elischer.org> wrote:
> Ed Schouten wrote:
>> Woops! Sorry for responding this late, but it looks like I didn't
>> explain myself good enough. Sorry. :) To rephrase myself:
>> Wouldn't it be better to just implement fcntl(..., F_CLOSEM, ...) in the
>> kernel and make closefrom() a simple libc routine:
>> void
>> closefrom(int lowfd)
>> {
>> 	fcntl(lowfd, F_CLOSEM, NULL);
>> }
>
> what on earth would that achieve?
> (as opposed to just a simple syscall)

Compatability with an existing implementation.

-- 
 Ed Schouten <ed at fxq.nl>
 WWW: http://g-rave.nl/
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