$GETSYIW

   Returns information about the local system or about other systems
   in a cluster.

   The $GETSYIW service completes synchronously; that is, it returns
   to the caller with the requested information. For asynchronous
   completion, use the Get Systemwide Information ($GETSYI) service;
   $GETSYI returns to the caller after queuing the information
   request, without waiting for the information to be returned. In
   all other respects, these services are identical; For information
   about the $GETSYIW service, see the documentation about $GETSYI.

   Format

     SYS$GETSYIW  [efn] ,[csidadr] ,[nodename] ,itmlst [,iosb]

                  [,astadr] [,astprm]

   C Prototype

     int sys$getsyiw  (unsigned int efn, unsigned int *csidadr, void

                      *nodename, void *itmlst, struct _iosb *iosb,

                      void (*astadr)(__unknown_params), int astprm);
   You must specify either the csidadr or the nodename argument,
   but not both. For wildcard operations, however, you must use the
   csidadr argument.