[PATCH] Fix "permission denied" on rename() under Cygwin

[Michael Bunk]

Hello,

Nagios 3.0RC1 doesn't work on Cygwin.  rename() with a new filename, which is 
already held open, results in a "Permission Denied".  This situation appears 
with the current code while reaping check results.

Attached patch simply closes the new file just opened with mkstemp() - before 
renaming instead of afterwards.  Securitywise this is a bad solution, because 
it opens a race condition, but at least Nagios works.

Please incorporate the bugfix included in the attached patch in a secure form, 
so that Nagios will be usable under Cygwin (if other Cygwin issues are 
resolved as well).

Best regards,
 Michael Bunk
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