/***********************************************************
 *                   A C B                                 *
 **********************************************************/
struct acb {
 short rsrv1;
 short leng;
 char rsrv2[4];
 unsigned long int iface;
 char rsrv3;
 unsigned macr2:8;
 struct acb *acb_next;
 struct rpl *rpl;
 char rsrv4[10];
 unsigned long int passw;
 unsigned long int uel;
 char rsrv5[3];
 unsigned am:8;          /* 0x60-NTAM           */
 unsigned long int deb;
 unsigned oflgs:8;       /* 0x10-OPEN           */
 unsigned erflg:8;       /* 0x04-ALREADY OPEN   *
                          * 0x14-NOT ENOTH STORAGE*/
 char rsrv6[22];
 unsigned long int apid;
 char rtn[6];
};
#define ACBSIZE 0x52
#define LOGON 0x08
#define NTAM 0x60
#define OPEN 0x10
#define OALR 0x04
#define ONVP 0x14