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Re: fix mktemp (remove mktemp ;)

From
FWFlorian Weimer <fw@deneb.enyo.de>
Date
Apr 18, 2005, 12:12 UTC
Message-ID
<87u0m4cmh3.fsf@deneb.enyo.de>
In-Reply-To
<E1DNMVX-00013d-00@gondolin.me.apana.org.au>
* Herbert Xu:
Show 9 quoted lines
> Paul Jackson <pj@sgi.com> wrote:
>> 
>> Even mktemp(1) can collide, in theory, since there is no practical way
>> in shell scripts to hold open and locked the file from the instant of it
>> is determined to be a unique name.
>
> mktemp(1) creates the file before exiting.  Other instances of mktemp(1)
> cannot successfully create the same file (they all use O_EXCL).
> Therefore this race does not exist, even in theory :)

/tmp cleaners exist, but the risks are minimal for programs which aren't SUID/SGID.

Previous: Paul Jackson
Message 25 of 25 in “fix mktemp (remove mktemp ;)”
  1. fix mktemp (remove mktemp ;)Paul Jackson, Apr 16, 2005
  2. missing mkdir -p flag in gitdiff-doPaul Jackson, Apr 16, 2005
  3. optimize gitdiff-do scriptPaul Jackson, Apr 16, 2005
  4. Petr BaudisApr 16, 2005
  5. Paul JacksonApr 17, 2005
  6. Paul JacksonApr 18, 2005
  7. Petr BaudisApr 18, 2005
  8. Paul JacksonApr 18, 2005
  9. Paul JacksonMay 10, 2005
  10. Jan-Benedict GlawApr 16, 2005
  11. Paul JacksonApr 16, 2005
  12. Petr BaudisApr 16, 2005
  13. Paul JacksonApr 17, 2005
  14. Dave JonesApr 17, 2005
  15. Paul JacksonApr 17, 2005
  16. Dave JonesApr 17, 2005
  17. David LangApr 17, 2005
  18. Paul JacksonApr 17, 2005
  19. Brian O'MahoneyApr 17, 2005
  20. Paul JacksonApr 17, 2005
  21. Erik van KonijnenburgApr 17, 2005
  22. Paul JacksonApr 17, 2005
  23. Herbert XuApr 18, 2005
  24. Paul JacksonApr 18, 2005
  25. Florian WeimerApr 18, 2005

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