Commit 08e20a63 authored Dec 11, 2017 by Stefan Raspl Committed by Paolo Bonzini Dec 14, 2017

tools/kvm_stat: handle invalid regular expressions



Passing an invalid regular expression on the command line results in a
traceback. Note that interactive specification of invalid regular
expressions is not affected
To reproduce, run "kvm_stat -f '*'".

Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

parent f3d11b0e

tools/kvm/kvm_stat/kvm_stat

+7 −0

Original line number	Diff line number	Diff line
		@@ -1521,6 +1521,13 @@ Press any other key to refresh statistics immediately.
		callback=cb_guest_to_pid,
		)
		(options, _) = optparser.parse_args(sys.argv)
		try:
		# verify that we were passed a valid regex up front
		re.compile(options.fields)
		except re.error:
		sys.exit('Error: "' + options.fields + '" is not a valid regular '
		'expression')

		return options