In a recent note, Thomas Dickey said:
> Date: Sun, 24 Dec 2000 09:08:24 -0500
> > >
> > Does it even overrule the setting of "umask" to do so?
>
> I haven't tested that - also I recall someone saying that mkstemp is broken on
> some older vendor boxes. I could write a configure check to try to determine
> if mkstemp's reasonably secure (but at the time, the person who was urging me
> to use mkstemp went further and wanted me to code in dependencies for behavior
> that were specific to his platform, so I put the whole issue aside for another
> time).
>
I tested on both OS/390 and Solaris. mkstemp() creates files with mode 600.
tmpfile() deletes the file when it's closed (on Solaris by unlinking the
file before tmpfile() returns; on OS/390 by making a memorandum and
deleting it later.) This behavior is ideal for some purposes; a problem
for others. mkstemp() leaves it to the programmer to delete the file.
-- gil
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