Re: lua bug - loadfile gets stdin confused
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- Subject: Re: lua bug - loadfile gets stdin confused
- From: Sam Roberts <sroberts@...>
- Date: 2007年4月17日 09:55:24 -0700
On Tue, Apr 17, 2007 at 02:12:06PM +1000, David Burgess wrote:
> if closing stdin/stderr/stdout I would have thought the friendly
> thing to do would be to assign it to NULL,
>
> fclose(stdin);
> stdin=NULL;
>
> This solves the problem on many systems.
Wouldn't this wreak havoc with libs that expect stdin/out to always
exist? Unix systems more typically freopen() the std file streams to
/dev/null, so libraries aren't so surprised. I think dos/windows has a
null device, too. Called "NUL:"?
The primary use of the freopen() function is to change the file
associated with a standard text stream (stderr, stdin, or stdout).
...
The fopen() and freopen() functions conform to ANSI X3.159-1989
(‘‘ANSI C’’).
freopen(3) on Linux
lua doesn't support freopen(), perhaps it should.
Cheers,
Sam