Vinícius Ferrão e3e132967c
fix(xcatd): stop a noderange from running a command through the ^ operator ...
The ^ noderange operator reads node names from a file. NodeRange opened
that file with a two-argument open. A two-argument open reads shell
metacharacters in the path, so a noderange such as ^"id|" ran a command.
xcatd expands a noderange while it processes a request, so the command
ran on the management node.
Use a three-argument open with an explicit read mode. The value is then
only ever a file name. The ^ operator keeps working: ^/tmp/nodes still
reads the file.
This fix was recovered from the lenovobuild branch. The original there
(commit for "Remove load from file in noderange support") removed the ^
operator. This keeps the documented operator and closes the command path
instead.
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Vinícius Ferrão
e3e132967c