Re: [PATCH sed] ck_fclose should unlink *before* calling do_ck_fclose.
Stanislav Brabec <[email protected]>
| Newsgroups | gmane.comp.gnu.utils.bugs |
|---|---|
| Organization | SUSE Linux s. r. o. |
| Message-ID | <[email protected]> |
NeilBrown wrote:
> If do_ck_fclose gets an error from fclose() it will call
> panic() which will try to close everything on the list.
There is a question: Why this code is needed at all? Is there a
platform, where exit(4) later in panic() keeps open file descriptors?
exit(3p) says:
The exit() function shall then flush all open streams with
unwritten buffered data, close all open streams, and remove all
files created by tmpfile().
It was added here:
2004-03-13 Paolo Bonzini <[email protected]>
Exit as soon as possible on an I/O error, and with
a better error message.
...
(panic): Unlink temporary files before exiting.
And even: Why the fflush() is called before fclose()? fclose() should
always flush. Isn't the error of fclose() sufficient? (Especially if
both end in panic().)
fclose(3p) says:
DESCRIPTION
The fclose() function shall cause the stream pointed to by
stream to be flushed and the associated file to be closed. Any
unwritten buffered data for the stream shall be written to the
file; any unread buffered data shall be discarded.
It was added here:
2002-06-08 Paolo Bonzini <[email protected]>
* lib/utils.c (ck_fclose): Work on stdout as well if stream == NULL
and flush before closing to check for errors
Well, and the check for EBADF in ck_fflush() looks like a hack that
could hide a problem elsewhere.
It was added here:
2002-10-28 Paolo Bonzini <[email protected]>
* lib/utils.c: Don't fail for EBADF in fflush
--
Best Regards / S pozdravem,
Stanislav Brabec
software developer
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