Re: test palette rgb

[Lars H. <lhe...@us...>]

Hans-Bernhard Broeker writes:
> On Tue, 25 Nov 2003, Petr Mikulik wrote:
> 
> > Man page of tmpnam() and of tempnam() says:
> >    Never use this function. Use mkstemp(3) instead.
> > 
> > Is there any safe and portable way to create a file in a temporary
> > directory, like /tmp or C:\TMP?
> 
> <stdio.h>: FILE *tmpfile(void)
> 
> It may not be particularly safe, but it's as portable as they come, being
> an ANSI/ISO C Standard Library function.  You get no control whatsoever
> about the directory it places the file in, though.
 
 It is quite difficult to do this portably and securly (avoiding races).
 It's probably best to create a temporary directory (mkdtemp() if available),
 chmod 700 it, and create all temp files in that directory. I've written
 some not terribly intelligent code like this for amavis.