Bug #6304

Updated by Tom Clegg over 4 years ago

Currently vulnerable to the following race (fixable by using a tempfile library):
* Request handler A writes hostname.conf.tmp.
* Request handler B opens hostname.conf.tmp for writing.
* Request handler A issues the move command.

Catch only the expected exceptions on the various write and update operations (IOError and SystemCallError?), not unexpected ones.

A "dns update with dir configured, but no command configured" test should assert that the command file was not written after calling dns_server_update