SYNOPSIS
	int privilege_violation(string op, mixed who, mixed arg3, mixed arg4)

DESCRIPTION
	Validate the execution of a privileged operation.
	op denotes the requested operation, who is the object
	requesting the operation (object_name or object pointer), arg3
	and arg4 are additional arguments, depending on the operation.

	The function should return >0 to grant the privilege, 0 to
	indicate that the caller was probably misleaded and the error
	might be fixed, and anything else to indicate a real
	violation, that will be handled as run time error.

	The privileged operations are:
	attach_erq_demon  Attach the erq demon to object <arg> with
	                  flag <args>. 
	bind_lambda	  Bind a lambda-closure to object arg3.
	call_out_info	  Return an array with all call_out
			  informations.
	nomask simul_efun Attempt to get an efun <arg> via efun:: when
	                  it is shadowed by a nomask type simul_efun.
	rename_object	  The object who tries to rename the object
			  arg3 to the name arg4.
	send_udp	  Send UDP-data to host arg3.
	set_auto_include_string Set the string automatically included
			  by the compiler into every object.
	get_extra_wizinfo Get the additional wiz-list info for user
			  arg3.
	set_extra_wizinfo Set the additional wiz-list info for user
			  arg3.
	set_extra_wizinfo_size Set the size of the additional user
			  info in the wiz-list to arg3.
	set_driver_hook   : Set hook <arg> to <arg2>.
	set_this_object	  Set this_object() to arg3.
	shadow_add_action Add an action to function arg4 that is
			  shadowed by the object arg3.
	symbol_variable	  Attempt to make a symbol from a hidden
			  inherited variable. arg3 is the object in
			  question, arg4 the number of the variable in
			  the variable table.
	wizlist_info	  Return an array with all wiz-list
			  information.

	call_out_info() can return the arguments to functions and
	lambda closures to be called by call_out(); you should
	consider that read access to closures, mappings and arrays
	means write access and/or other privileges. 
	wizlist_info() will return an array which holds, among others,
	the extra wizlist field. While a toplevel array, if found,
	will be copied, this does not apply to nested arrays or to any
	mappings. You might also have some sensitive closures there.
	send_udp() should be watched as it could be abused to mess up
	the IMP.
	The xxx_extra_wizinfo operations are necessary for a proper
	wizlist and should therefore be restricted to admins.
	All other operations are potential sources for direct security
	breaches - any use of them should be scrutinized closely.

SEE ALSO	
	simul_efun(C), call_out_info(E), shadow(E), add_action(E),
	wizlist(E), set_this_object(E), rename_object(E),
	bind_lambda(E), send_udp(E), set_auto_include_string(E)