/* k 8001 19.07.90 */
/* k 1003 22-08-90 */
union  ru {           /* request-response unit */
    char cru[97];		    /* any 97-bytes ru */
          };
#define RUOSST  0x43                /* OSST-LVS 1003 */
#define RUSDT   0xA0                /* SDT      1003 */
#define RUBIND  0x31                /* BIND     1003 */
#define RUUNBND 0x32                /* UNBIND   1003 */