kern_return_t
mach_port_extract_right(
ipc_space_t space,
mach_port_name_t name,
mach_msg_type_name_t msgt_name,
ipc_port_t *poly,
mach_msg_type_name_t *polyPoly)
{
kern_return_t kr;
if (space == IS_NULL)
return KERN_INVALID_TASK;
if (!MACH_MSG_TYPE_PORT_ANY(msgt_name))
return KERN_INVALID_VALUE;
if (!MACH_PORT_VALID(name)) {
/*
* really should copy out a dead name, if it is a send or
* send-once right being copied, but instead return an
* error for now.
*/
return KERN_INVALID_RIGHT;
}
kr = ipc_object_copyin(space, name, msgt_name, (ipc_object_t *) poly);
if (kr == KERN_SUCCESS)
*polyPoly = ipc_object_copyin_type(msgt_name);
return kr;
}
int
_kernelrpc_mach_port_insert_right_trap(struct _kernelrpc_mach_port_insert_right_args *args)
{
task_t task = port_name_to_task(args->target);
ipc_port_t port;
mach_msg_type_name_t disp;
int rv = MACH_SEND_INVALID_DEST;
if (task != current_task())
goto done;
rv = ipc_object_copyin(task->itk_space, args->poly, args->polyPoly,
(ipc_object_t *)&port);
if (rv != KERN_SUCCESS)
goto done;
disp = ipc_object_copyin_type(args->polyPoly);
rv = mach_port_insert_right(task->itk_space, args->name, port, disp);
done:
if (task)
task_deallocate(task);
return (rv);
}
