[PATCH]: Add flock syscall emulation

[Nicholas Wourms]

Corinna wrote:
> On Sun, Nov 30, 2003 at 12:57:48PM -0500, Nicholas Wourms wrote:
> 
>>Corinna wrote:
>>
>>>I've run indent on flock.c since its formatting was non-GNU.
>>
>>I can understand why you did it in this case (the tabs were out of 
>>control), but can we make an exception for bsd/isc-derived code?  I 
>>think that enforcing this rule strictly on written-from-scratch source 
>>is ok, but doing it on derived source reduces the overall transparency 
>>of changes against the upstream version.
> 
> 
> I see.  Is that necessary for flock?  It's not BSD derived and will
> not likely need another external update.

Oh, I think I was unclear.  I was trying to say is that I agree with 
your formatting changes to the flock code.  I just wanted to see if I 
could have an exception from this policy in certain cases where the 
source was derived.

> However, we have a problem here, which I just saw when looking into
> the flock code another time.  The newlib defintion of `struct flock'
> isn't 64 bit aware and it doesn't adhere to the SUSv3 definition.  :-(
> It uses 'long' as datatypes for l_start and l_len but these should
> be off_t.

> So we need to define flock32 and flock64 structs and change the fcntl
> interface to accept both.  Sic.

Hmm, I see what you mean.  While I've been mulling over the problem, it 
seems you've already solved it.  Thanks for catching that oversight on 
my part.

Cheers,
Nicholas