Confusing error message when no members defined in host/service groups

[tsadpbb]

What

If you define all of your host and service groups such that they do not have members, like so

define servicegroup {
	servicegroup_name	testservicegroup 
	alias	Sample Service Group  
	}

Then you get an authentication message:
"It appears as though you do not have permission to view information for any of the hosts you requested..."

Why

In cgiauth.c around lines 300 and 329, if the temp_servicesmember and temp_hostsmember is already NULL, authorization returns false.

Suggestions to fix

• A different error message can be shown instead of one that suggests the user doesn't have permissions.
• On startup, a host group and service group could require members. Could break some things.
• Make a conditional before the for loop that return TRUE if the members are null. Could break some things.