/***************************************************************************/
/**                                                                       **/
/** HPE CONFIDENTIAL. This software is confidential proprietary software  **/
/** licensed by Hewlett-Packard Enterprise Development, LP, and is not    **/
/** authorized to be used, duplicated OR disclosed to anyone without the  **/
/** prior written permission of HPE.                                      **/
/** © 2023 Copyright Hewlett-Packard Enterprise Development, LP           **/
/**                                                                       **/
/** VMS SOFTWARE, INC. CONFIDENTIAL. This software is confidential        **/
/** proprietary software licensed by VMS Software, Inc., and is not       **/
/** authorized to be used, duplicated or disclosed to anyone without      **/
/** the prior written permission of VMS Software, Inc.                    **/
/** © 2023 Copyright VMS Software, Inc.                                   **/
/**                                                                       **/
/***************************************************************************/
/********************************************************************************************************************************/
/* Created:  9-Nov-2023 12:06:54 by OpenVMS SDL V3.7       */
/* Source:  24-MAR-1993 16:36:04 $1$DGA8345:[LIB_H.SRC]DTNDEF.SDL;1 */
/********************************************************************************************************************************/
/*** MODULE $DTNDEF ***/
#ifndef __DTNDEF_LOADED
#define __DTNDEF_LOADED 1
 
#pragma __nostandard			 /* This file uses non-ANSI-Standard features */
#pragma __member_alignment __save
#pragma __nomember_alignment
#ifdef __INITIAL_POINTER_SIZE			 /* Defined whenever ptr size pragmas supported */
#pragma __required_pointer_size __save		 /* Save the previously-defined required ptr size */
#pragma __required_pointer_size __short		 /* And set ptr size default to 32-bit pointers */
#endif
 
#ifdef __cplusplus
    extern "C" {
#define __unknown_params ...
#define __optional_params ...
#else
#define __unknown_params
#define __optional_params ...
#endif
 
#ifndef __struct
#if !defined(__VAXC)
#define __struct struct
#else
#define __struct variant_struct
#endif
#endif
 
#ifndef __union
#if !defined(__VAXC)
#define __union union
#else
#define __union variant_union
#endif
#endif
 
#define DTN$K_BASE_LENGTH 24            /* length of fixed portion of DTN   */
#define DTN$K_LENGTH 52                 /* standard length of DTN           */
#define DTN$K_NAMELEN_MAX 27            /* max length of name string        */
	
 
#ifdef __cplusplus		    /* Define structure prototypes */
struct _ucb;
#endif		/* #ifdef __cplusplus */
 
typedef struct _dtn {
    struct _dtn *dtn$ps_flink;          /* flink to next DTN                */
    struct _dtn *dtn$ps_blink;          /* blink to previous DTN            */
    unsigned short int dtn$w_size;      /* size of DTN in bytes             */
    unsigned char dtn$b_type;           /* structure type of DTN            */
    unsigned char dtn$b_subtype;        /* structure subtype                */
    unsigned int dtn$l_flags;           /* various flag bits                */
    unsigned char dtn$b_devtype;        /* copy of UCB$B_DEVTYPE            */
    unsigned char dtn$b_devclass;       /* copy of UCB$B_DEVCLASS           */
    short int dtn$w_spare1;             /* pad for longword alignment       */
    struct _ucb *dtn$ps_ucblist;        /* pointer to list of UCBs          */
    __union  {                          /* name string                      */
        char dtn$t_dtname [28];         /* name stored in ASCIC format      */
        __struct  {
            unsigned char dtn$ib_dtname_len; /* length of the device name   */
            char dtn$t_dtname_str [27]; /* actual string                    */
            } dtn$r_ascic_name;
        } dtn$r_name_overlay;
    } DTN;
 
#if !defined(__VAXC)
#define dtn$t_dtname dtn$r_name_overlay.dtn$t_dtname
#define dtn$ib_dtname_len dtn$r_name_overlay.dtn$r_ascic_name.dtn$ib_dtname_len
#define dtn$t_dtname_str dtn$r_name_overlay.dtn$r_ascic_name.dtn$t_dtname_str
#endif		/* #if !defined(__VAXC) */
 
 
#pragma __member_alignment __restore
#ifdef __INITIAL_POINTER_SIZE			 /* Defined whenever ptr size pragmas supported */
#pragma __required_pointer_size __restore		 /* Restore the previously-defined required ptr size */
#endif
#ifdef __cplusplus
    }
#endif
#pragma __standard
 
#endif /* __DTNDEF_LOADED */