On Tue, Jun 09, 2009 at 07:12:24PM +0200, Joerg Sonnenberger wrote:
> On Tue, Jun 09, 2009 at 10:37:29AM -0600, Theo de Raadt wrote:
> > The fact that you had to modify standards compliant code already in
> > the tree to make it work indicates a rather major problem.
> 
> The changes for stdout / stderr / stdin at least are valid,
> the standard doesn't guarantee that they can be used that way.
> 
> ISO C explicitly defines them as "extern FILE *stderr" etc.
> 
> It is possible to mostly hide the FILE internals and the breakage is not
> as big as portrait in that thread. It is still quite painful as a lot of
> programs want to look at the inner workings though.
> 
> There are a number of open issues with the public API for certain
> operations mandated by SUS, e.g. the combination of file pointer
> position for buffered files when sharing the file between processes etc.

> Joerg

Well, I remember just doing some stupid extension for locale support,
and spending a *lot* of time getting things to work afterwards...
and this definitely was less invasive than hiding FILE internals....

The devil lies in the BOATLOAD of details...

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