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Bug#357900: gcc-4.0: Please detect and warn about 2 argument mode() called with O_CREAT

Justin Pryzby writes:
> Package: gcc-4.0
> Version: 4.0.3-1
> Severity: wishlist
> Tags: upstream
> mode(2) reads:
>        mode  must  be  specified  when O_CREAT is in the flags, and is
>        ignored otherwise.
> I straced the result of
> 	open(buf, O_RDWR|O_CREAT|O_EXCL);
> and the effective value of the third parameter was garbage (this open
> was in a loop, and the third parameter was equal to my loop variable).
> I wonder if gcc could detect this error.

I doubt that would be something to be considerd. Would you mind
forwarding that upstream?

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