Date: Mon, 06 Sep 1999 23:52:05 +0900 From: Jun Kuriyama <kuriyama@sky.rim.or.jp> To: Documentation Team <freebsd-doc@freebsd.org> Subject: About www/en/security/security.sgml Message-ID: <14291.54548.4992.72159A@localhost.sky.rim.or.jp>
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When I try to translate this sentence, I cannot make clear whether
mkstemp() should be used or not. Can someone clarify this?
--- www/en/security/security.sgml
<LI>Make sure to use mkstemp() instead of mktemp(), tempnam(), mkstemp() and
etc. Also make sure to look for races in /tmp in general, being aware that
there are very few things which can be atomic in /tmp:
<UL>
<LI>Creating a directory. This will either succeed or fail.</LI>
<LI>Opening a file O_CREAT | O_EXECL</LI>
</UL>
If you use mkstemp - above cases will be properly handled for you. Hence
all temp files should use mkstemp() to guarantee there is not race
condition and that the permissions are correct.
<P></P></LI>
---
Jun Kuriyama // kuriyama@sky.rim.or.jp
// kuriyama@FreeBSD.ORG
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