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Trailing-Edge - PDP-10 Archives - tops20-v7-ft-dist1-clock - 7-sources/dap.b36
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MODULE DAP(			!DAP message processing routines
	IDENT='7.0(664) 6-Feb-87'
        %BLISS36(,
                 ENTRY(
                       D$GCFG, ! DAP$GET_CONFIG,     ! Get Config message
                       D$GATT, ! DAP$GET_ATTRIBUTES, ! Get Attributes -> FAB
                       D$$GAT, ! DAP$$GET_ATTRIBUTES,! Get Attributes FAB+FST
                       D$PCFG, ! DAP$PUT_CONFIG,     ! Build CONFIG
                       D$PATT, ! DAP$PUT_ATTRIBUTES, ! Build ATTRIBUTES <- FAB
                       D$$PAT, ! DAP$$PUT_ATTRIBUTES,! Put Attributes FAB+FST
                       D$PACC, ! DAP$PUT_ACCESS,     ! Build ACCESS message
                       D$PNAM, ! DAP$PUT_NAME,       ! Build a NAME message
                       D$PCTL, ! DAP$PUT_CONTROL,    ! Build CONTROL message
                       D$GSTS  ! DAP$GET_STATUS      ! Process a STATUS message
                       ))
	)=
BEGIN

!
!	COPYRIGHT (C) DIGITAL EQUIPMENT CORPORATION 1981, 1986.
!	ALL RIGHTS RESERVED.
!
!	THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY  BE  USED  AND
!	COPIED ONLY IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE AND WITH
!	THE INCLUSION OF THE ABOVE COPYRIGHT NOTICE.   THIS  SOFTWARE  OR
!	ANY  OTHER  COPIES  THEREOF MAY NOT BE PROVIDED OR OTHERWISE MADE
!	AVAILABLE TO ANY OTHER PERSON.  NO TITLE TO AND OWNERSHIP OF  THE
!	SOFTWARE IS HEREBY TRANSFERRED.
!
!	THE INFORMATION IN THIS SOFTWARE IS  SUBJECT  TO  CHANGE  WITHOUT
!	NOTICE  AND  SHOULD  NOT  BE CONSTRUED AS A COMMITMENT BY DIGITAL
!	EQUIPMENT CORPORATION.
!
!	DIGITAL ASSUMES NO RESPONSIBILITY FOR THE USE OR  RELIABILITY  OF
!	ITS SOFTWARE ON EQUIPMENT THAT IS NOT SUPPLIED BY DIGITAL.
!

!++
! FACILITY:	RMS-20
!
! ABSTRACT:	This is the System-independent part of the DAP protocol.
!
!
! ENVIRONMENT:	TOPS-20, Transportable BLISS DecNet Interface
!
! AUTHOR:	Andrew Nourse, CREATION DATE: 21-Dec-81
! RMS edit numbers:
!
! 664 - Add output of FFB and EBK fields so that NFT's DIR command works.
! 656 - Implement protection XAB code in get and put attributes messages.
! 653 - Don't default the MRS to 512 unless the RFM is UDF and all of the
!       following is true: no MRS was specified, we are talking to a 10 or 20,
!       the TYP is IMAGE (correcting part of edit 647).
! 652 - If we are talking to an old non-RMS TOPS-20 program then add two to the
!       MRS if the RFM is STM and default the FOP to SUP if none specified.
! 647 - Default the datatype to IMAGE if it wasn't given in the attributes
!       message.  If we are doing image mode, default the bytesize to 36 and
!       MRS of 512 if not given in attribute message and we are talking to an
!       LCG machine.  The TOPS-10 NFT program depends on this working right
!       since it uses SEQ mode for image file transfers.
! 645 - If image mode to another 36 bit system running old FALs, set block
!       size 512 and byte size 36 and undefined record format.
! 644 - Insure that all three arguments passed to DAP$GET_CONFIG.
! 641 - Nametype_Nam NAME message must be preceded by structure and
!	directory NAME messages, else ignore it.
! 636 - Allow RSTS to read stream files.
! 623 - Construct keyed $GET string keys with proper byte pntr.
! 620 - Old missing dot in D$PCTL caused infinite loop on keyed $GET.
! 617 - Old typo moving DAP FLG bits.
! 613 -	Added DIL8 type class to support DIL formatted 8-bit
!	records generated (only) by DIU)
! 610 - Fix extended KEY attributes, implement KNM sending/receiving,
!	don't compare checksums if requested to do so but we are
!	closing and deleting a file, fix "Unsupported DAP operation"
!	error for directory/list function from VMS when bit 35 is on.
! 606   - Handle 8-segment keys, 
!         also add more UAPointer calls to D$Name_Decompose
! 605   - Handle oversize RFA's from/to VMS
! 602   - Default ORG & some other fields if not returned, fix dev & sdc
! 601   - Check for RMS$_SIZ
! 600   - Don't lose RFA on PUT
! 577   - Handle strange ALLOC & KEY messages correctly
!         Handle certain status messages better
! 574   - Use FST from global, handle ext attrs better
! 572   - TOPS10
! 571   - Fix returned names & $display
! 557   - Fix multistream
! 555   - Fix LSA
!         New names for software version fields
! 515   - Use Xab$v_Cod, not Xab$h_Bid
! 533   - Save Accopt for CRC
!
! Module edit numbers:
! 20    - Handle overlong fields in STATUS message better
! 17    - Handle XABs better
! 16    - RMS'ify.  And the DIB is now an FST    
! 15    - Make DAP$$(GET|PUT)_ATTRIBUTES, which takes a DIB as an argument
! 14    - Make DAP$GET_ATTRIBUTES return if it gets ACCESS msg
! 13    - Make losing old FAL-20 blocks into pages
! 12    - Handle ADT.  also put BDT and PDT in correct order
! 11    - Put nodeid in resultant name generated from 3-part name
! 10    - Send real byte size to 36-bit machines, no byte size to others
!         and include node name in remote resultant filespec.
! 07    - Set implied CRLF for ASCII FIXED
! 06    - Workaround RSTS not sending STATUS for file-not-found on directory
! 05    - Put in ENTRY points
! 04    - Fix default for BLS in DAP$PUT_ATTRIBUTES
!         and put in bitvectors for workarounds
!       - Fix RENAME name type
! 03    - Page mode
! 02    - Make the FOP go out
! 01	- The beginning
!--


!
! Libraries
!
REQUIRE 'RMSREQ';
LIBRARY 'BLISSNET';
LIBRARY 'CONDIT';

!
! Table of Contents
!
FORWARD ROUTINE
    DAP$GET_CONFIG,                         ! Get Config message
    DAP$GET_ATTRIBUTES,                     ! Get Attributes
    DAP$$GET_ATTRIBUTES,                    ! Get Attributes to FAB & FST
    D$NAME_DECOMPOSE: NOVALUE,              ! decompose remote filespec
    DAP$PUT_CONFIG: NOVALUE,                ! Build CONFIG
    DAP$PUT_ATTRIBUTES: NOVALUE,            ! Build ATTRIBUTES from FAB
    DAP$$PUT_ATTRIBUTES: NOVALUE,           ! Build Attributes from FAB & FST
    DAP$PUT_ACCESS: NOVALUE,                ! Build ACCESS message
    DAP$PUT_NAME: NOVALUE,                  ! Build a NAME message
    DAP$PUT_CONTROL: NOVALUE,               ! Build CONTROL message
    DAP$GET_STATUS,                         ! Process a STATUS message
    DAP$RFA_RMS_DAP: NOVALUE,               ! Convert RMS RFA for DAP
    DAP$RFA_DAP_RMS;                        ! Convert DAP RFA for RMS


!
! Literals
!

%IF NOT %DECLARED(Fab$k_SLf)            ! If RMS does not have STREAM_CRLF
    %THEN LITERAL Fab$k_SLf = Fab$k_Stm;! make it STREAM
    %FI

%IF NOT %DECLARED(Fab$k_SCr)            ! If RMS does not have STREAM_CRLF
    %THEN LITERAL Fab$k_SCr = Fab$k_Stm;! make it STREAM
    %FI

%IF %BLISS(BLISS36)
    %THEN 
    %IF %SWITCHES(TOPS20)
        %THEN
        LITERAL
               OUR_OSTYPE=DAP$K_TOPS20,
               OUR_BLOCK_SIZE=512,
               DEVICE_NAME_LENGTH=40,   ! Including punctuation
               DIRECTORY_NAME_LENGTH=41,!
               FILE_NAME_LENGTH=40,     !
               OUR_FILESYS=DAP$K_RMS20;
        %ELSE
	LITERAL
               OUR_OSTYPE=DAP$K_TOPS10,
               OUR_BLOCK_SIZE=512,
               DEVICE_NAME_LENGTH=40,   ! Including punctuation
               DIRECTORY_NAME_LENGTH=45,!
               FILE_NAME_LENGTH=40,     !
               OUR_FILESYS=DAP$K_TOPS10;
        %FI
    %ELSE %ERROR('Not implemented for 16/32 bit architectures')
    %FI;


!
! External references
!
EXTERNAL ROUTINE Chazac,
                 s$fbbyv,
                 s$fbsiz,
                 S$StrDt,
                 S$DtStr,
                 Dap$Get_Header,
                 Dap$Unget_Header,
                 Dap$Get_Byte,
                 Dap$Get_2byte,
                 Dap$Get_Date,
                 Dap$Get_Variable_String,
		 Dap$Get_Variable_Counted,
                 Dap$Size_Bitvector,
                 Dap$Get_Bitvector,
                 Dap$Get_Longword,
                 Dap$Get_Variable_Counted,
                 Dap$Put_Bitvector,
                 Dap$Put_Header,
                 Dap$Put_2byte,
                 Dap$Put_Longword,
                 Dap$Put_Byte,
                 Dap$Put_String,
                 Dap$Put_Variable_Counted,
		 Dap$Put_Date,
                 Dap$Unget_Byte,
                 Dap$Eat_Message,
                 Dap$Error_Dap_Rms,
                 UAddr,
		 UAPointer,
                 TGUPointer;

EXTERNAL
    d$gtrace: BITVECTOR[%BPVAL];

!
! Macros
!

MACRO Dap_Error (Ddesc, Mac, Mic) = Signal ( Err_Ds ( Mac, Mic), Ddesc ) %;

!
! Equated Symbols
!

LITERAL Dap$k_Obj_Fal=17;                     !The FAL Object Type

!
! GLOBAL Data
!

PSECT GLOBAL=$HIGH$;
PSECT OWN=$HIGH$;

GLOBAL FalObj: INITIAL (Dap$k_Obj_Fal) ;

!+ 610
!  Global vector of addresses for dynamically allocated KeyName
!  text buffers
!-

GLOBAL KnmBuf: VECTOR[256] INITIAL (0) ;	!610

!
! This is the configuration XAB that describes what we are running
! 

GLOBAL OurCfg: $XabCfg_decl PRESET
          ([xab$h_bid] = xab$k_bid,             ! Set up header       !a545
           [xab$h_bln] = xab$k_cfglen,		!                     !a545
	   [xab$v_cod] = xab$k_cfg,		!                     !a545

           [xab$b_version]=7,
           [xab$b_econum]=0,
           [xab$b_softver]=3,
           
           [xab$b_ostype]=Our_OSType,
           [xab$b_filesys]=Our_Filesys,
           [xab$h_bufsiz]=Dap$k_Buffer_Size,

           ! System Capabilities
            [xab$v_preallocation]=1,          ! pre ! Preallocation supported

                                              ! File Organizations Supported:
            [xab$v_sequential_org]=1,         ! sqo !  Sequential 
            [xab$v_relative_org]=1,           ! rlo !  Relative 
            [xab$v_direct_org]=0,             ! dro !  DIRECT (reserved)

            [xab$v_control_extend]=0,         ! ext ! Control message $EXTEND
                                              ! 
                                              ! File Access Modes Supported:
            [xab$v_sequential_transfer]=1,    ! sqt !  Sequential File Transfer
                                              !      Random access by
            [xab$v_random_access_recnum]=1,   ! rre !     Record Number
            [xab$v_random_access_vbn]=1,      ! rvb !     Virtual Block # !m561
            [xab$v_random_access_key]=1,      ! rke !     Key
            [xab$v_random_access_hash]=0,     ! rha !     hash code (reserved)
            [xab$v_random_access_rfa]=1,      ! rrf !     RFA
            [xab$v_indexed_multi_key]=1,      ! imk !     Multi-key ISAM

            [xab$v_switch_access_mode]=1,     ! swa ! Change RAC        !m545
            [xab$v_append_access]=1,          ! apa ! APPEND supported
            [xab$v_submit_access]=1,          ! sba ! Control message $SUBMIT
            [xab$v_data_compression]=0,       ! cmp ! Reserved
            [xab$v_multi_data_streams]=0,     ! mds ! Multiple record streams
            [xab$v_display]=1,                ! dis ! Control message $DISPLAY

                                              ! DAP Message blocking:
            [xab$v_blocking]=1,               ! blr !   Until response needed
            [xab$v_unrestricted_blocking]=1,  ! blu !   Unrestricted

            [xab$v_len256]=1,                 ! 256 ! Extended length field
            [xab$v_checksum]=1,               ! chk ! DAP checksumming

                                              ! XAB messages supported
            [xab$v_key_definition]=1,         ! kem ! KEY DEFINITION message
            [xab$v_allocation]=1,             ! alm ! ALLOCATION message
            [xab$v_summary]=1,                ! smm ! SUMMARY message
            [xab$v_directory]=1,              ! dir ! DIRECTORY access
            [xab$v_date_time]=1,              ! dtm ! DATE/TIME message
            [xab$v_protection]=1,             ! pro ! PROTECTION message
            [xab$v_acl]=0,                    ! acl ! ACL message (reserved)

                                              ! FOP Close bits supported:
            [xab$v_fop_print]=1,              ! fpr ! FOP SPL bit
            [xab$v_fop_submit]=1,             ! fsb ! FOP SCF bit
            [xab$v_fop_delete]=1,             ! fde ! FOP DLT bit

            [xab$v_default_filespec]=0,       ! dfs ! Default Filespec   !m545
            [xab$v_sequential_access]=1,      ! sqa ! Sequential RECORD access
            [xab$v_recovery]=0,               ! rec ! Recovery (Reserved)
            [xab$v_bitcnt]=1,                 ! bit ! BITCNT field
            [xab$v_warning_status]=0,         ! war ! WARNING STATUS message
            [xab$v_rename_access]=1,          ! ren ! $RENAME
            [xab$v_wildcarding]=1,            ! wld ! Wildcarding
            [xab$v_go_no_go]=0,               ! go  ! GO/NOGO option
            [xab$v_name]=1,                   ! nam ! NAME message
            [xab$v_segmenting]=1,             ! seg ! DAP message segmentation 
                                              ! $CLOSE Options
            [xab$v_change_attributes]=0,      ! cat ! Change Attributes
            [xab$v_change_dtm]=0,             ! cdt ! Change Date/Time
            [xab$v_change_protection]=0,      ! cpr ! Change Protection
            [xab$v_change_name]=1,            ! cna ! Change Name
            [xab$v_modified_attributes]=0,    ! mat ! Changed Attributes/Create
            [xab$v_display_3_part_name]=1,    ! d3n ! 3-part name in $DISPLAY
            [xab$v_rename_change_attributes]=0,! rat ! Change Attributes
            [xab$v_rename_change_dtm]=0,      ! rdt ! Change Date/Time
            [xab$v_rename_change_protection]=0,! rpr ! Change Protection
            [xab$v_blkcnt]=0,                  ! bcs ! Block Count
            [xab$v_Octal_Version_Numbers]=0    ! ovn ! octal version numbers
          );


!
! Canned Messages   (Global PLITS)
!

GLOBAL D_Skip: $Xpn_Descriptor (Binary_Data= (3, UPLIT(Char8(Dap$k_Continue,
                                                             0,
                                                             Dap$k_Con_Skip))));

! Runtime conditionals for workarounds (to other systems' bugs)
GLOBAL
    T20bug: BITVECTOR[16] INITIAL(-1),  ! Bit map for TOPS-20 workarounds
    Vmsbug: BITVECTOR[16] INITIAL(-1),  !         for VMS
    Rsxbug: BITVECTOR[16] INITIAL(-1),  !         for RSX
    Rstbug: BITVECTOR[16] INITIAL(-1),  !         for RSTS
    Rtbug:  BITVECTOR[16] INITIAL(-1),  !         for RT11
    Iasbug: BITVECTOR[16] INITIAL(-1),  !         for IAS
    Posbug: BITVECTOR[16] INITIAL(-1),  !         for POS
    Ultbug: BITVECTOR[16] INITIAL(-1),  !         for ULTRIX
    Msdbug: BITVECTOR[16] INITIAL(-1),  !         for MS-DOS
    T10bug: BITVECTOR[16] INITIAL(-1);  !         for TOPS-10

OWN D_Null: $Str_Descriptor ( String = %CHAR(0) );
GLOBAL ROUTINE Dap$Get_Config ( P_Dd: REF $Dap_Descriptor,
                                P_Cfg: REF $XabCfg_Decl,
                                p_fab: REF $fab_decl)=                 !a637
!++
! FUNCTIONAL DESCRIPTION:
!
!	Process a CONFIG message and save the information contained therein
!       into the configuration block
!
! FORMAL PARAMETERS:
!
!       p_dd: Address of DAP message descriptor
!       p_cfg: Address of internal configuration XAB to fill in
!       p_fab: Address of user's FAB (so that we may fill in his config XAB)
!
! IMPLICIT INPUTS:
!
!	NONE
!
! IMPLICIT OUTPUTS:
!
!	Internal configuration block is set up and user's configuration XAB is
!       set up (if any).
!
! ROUTINE VALUE:
! COMPLETION CODES:
!
!	DAP Message type of message we got.
!
! SIDE EFFECTS:
!
!	NONE
!
!--
	BEGIN				
        BIND dd=.P_dd: $Dap_Descriptor;
        BIND Cfg=.P_Cfg: $XabCfg_Decl;
        BIND ufab = .p_fab: $fab_decl;
        LOCAL xabptr;

        IF Dap$Get_Header (dd) NEQ DAP$K_CONFIG
	THEN RETURN Dap$Unget_Header (dd);

	Cfg[Xab$h_Bufsiz]=Dap$Get_2byte(dd);	!Maximum DAP message size
	Cfg[Xab$b_Ostype]=Dap$Get_Byte(dd);	!What are we talking to
	Cfg[Xab$b_Filesys]=Dap$Get_Byte(dd);	!File system type
	Cfg[Xab$b_Version]=Dap$Get_Byte(dd);	!DAP Version # of remote system
	Cfg[Xab$b_Econum]=Dap$Get_Byte(dd);	!DAP ECO #
	Cfg[Xab$b_Usrnum]=Dap$Get_Byte(dd);	!Customer version # for DAP
	Cfg[Xab$b_Softver]=Dap$Get_Byte(dd);	!Version of cusp
	Cfg[Xab$b_Usrsoft]=Dap$Get_Byte(dd);	!User cusp version #
	Dap$Get_Bitvector(dd,Cfg[Xab$v_Syscap],12);	!SYSCAP bits

        IF .Dd[Dap$h_Length] GTR 0              !If Message was longer
        THEN Dap$Eat_Message (dd);              ! ignore the rest
                                                                     ! a637vv

! Fill in user's config xab (if any) from the internal config block

xabptr = .ufab[Fab$a_Xab];              ! Point to the first xab

WHILE .xabptr NEQ 0                     ! While the xab chain still points
DO BEGIN                                ! Look for the config xab
   BIND uxab = uaddr(.xabptr): $xabcfg_decl;
   IF  .uxab[XAB$V_COD] EQL XAB$K_CFG   ! Is it a config xab?
   THEN BEGIN                           ! Yes
        IF .rmssec EQL 0                ! Copy non-header portion of config
        THEN $move_words(cfg+XAB$K_HDRLEN,
                         uxab+XAB$K_HDRLEN,
                         XAB$K_CFGLEN-XAB$K_HDRLEN)     ! Section 0 mover
        ELSE $rms$xcopy(cfg+XAB$K_HDRLEN,
                        uxab+XAB$K_HDRLEN,
                        XAB$K_CFGLEN-XAB$K_HDRLEN);     ! Section nonzero mover
        EXITLOOP;                       ! We found it now exit
        END
   ELSE xabptr=.uxab[XAB$A_NXT];        ! On to next XAB
   END;                                 ! End of WHILE .xabptr NEQ 0 DO
                                                                      ! a637^^
        Dap$k_Config                            !Return what we got
	END;				!End of DAP$GET_CONFIG
GLOBAL ROUTINE Dap$Get_Attributes ( P_Dd: REF $Dap_Descriptor,
                                    P_Fab: REF $Fab_Decl)=
!++
! FUNCTIONAL DESCRIPTION:
!
!	Process ATTRIBUTES, ATTRIBUTES extensions, NAME and ACCESS messages
!	Returns on receipt of ACK or ACCESS (or NAME if DAP$K_RENAME)
!
! FORMAL PARAMETERS:
!
!	P_DD:  Addr of DAP message descriptor
!       P_FAB: Addr of FAB
!            This routine uses the FST pointed to by the global FST
!
! ROUTINE VALUE:
!
!	DAP Operator code if successful, Signal error otherwise
!
! SIDE EFFECTS:
!
!       Memory is allocated for a KDB for each Key message read.
!       These are kept in a chain from Fst[Fst$a_Kdb]
!--
BEGIN
DAP$$GET_ATTRIBUTES( .p_dd, .p_Fab, .Fst )
![15] Call this routine to really do the work, using the FST from the FAB
END;
GLOBAL ROUTINE Dap$$Get_Attributes (p_Dd: REF $Dap_Descriptor,
                                    P_Fab: REF $Fab_Decl,
                                    p_Fst: REF $Rms_Fst )=
!++
! FUNCTIONAL DESCRIPTION:
!
!	Process ATTRIBUTES, ATTRIBUTES extensions, NAME and ACCESS messages
!	Returns on receipt of ACK or ACCESS (or NAME if DAP$K_RENAME)
!
! FORMAL PARAMETERS:
!
!	P_DD: Addr of DAP message descriptor
!       P_FAB: Addr of (RMS) FAB
!       P_FST: Addr of Fst
!
! ROUTINE VALUE:
!
!	DAP Operator code if successful, Signal error otherwise
!
! SIDE EFFECTS:
!
!       Memory is allocated for a KDB for each Key message read.
!       These are kept in a chain from Fst[Fst$a_Kdb]
!--
BEGIN				!Expecting ATTRIBUTES, ACCESS, NAME, ACK,
				!or any of the Attributes extensions

BIND dd=.P_dd: $Dap_Descriptor,
     fab=.p_fab: $Fab_Decl,
     fst=.p_fst: $Rms_Fst,
     Config=.Fst[Fst$a_Config]: $XabCfg_Decl;   ! Configuration block

BIND typ = ( IF .Fab[Fab$a_Typ] NEQ 0
             THEN .Fab[Fab$a_Typ]
             ELSE 0 ): $Typ_decl;       !a504

LOCAL mtype: INITIAL(-1);               !DAP message type
LOCAL omtype;
LOCAL nametypes_seen: BITVECTOR[21] INITIAL(0); ! Types of Name messages seen

LOCAL                                   ! Pointers to the various XABs
     xabptr,
     xaball: VECTOR[32] INITIAL(0),
     xabpro: REF $XabPro_decl INITIAL(0),
     xabcfg: REF $XabCfg_decl INITIAL(0),
     xabsum: REF $XabSum_decl INITIAL(0),
     xabdat: REF $XabDat_decl INITIAL(0),
     xabkey: VECTOR[256] INITIAL(0);    ! We can have 255 of these!

! Find our XABs                                   ![17] Handle XABs better vv
     xabptr = .Fab[Fab$a_Xab];

     WHILE .xabptr NEQ 0
     DO
        BEGIN
        BIND uxab=UAddr( .xabptr ): $XabKey_decl;

        CASE .Uxab[Xab$v_Cod] FROM 0 TO Xab$k_cod_max OF   ! COD not BID !m515
             SET
             [Xab$k_Sum]: XabSum=uxab;
             [Xab$k_All]: BEGIN
                          MAP uxab: $XabAll_decl;
                          XabAll[ .uxab[Xab$b_aid] ] = uxab;
                          END;
             [Xab$k_Dat]: XabDat=uxab;
             [Xab$k_Cfg]: ;
             [Xab$k_Key]: XabKey[ .uxab[Xab$b_ref] ] = uxab;
             [Xab$k_Pro]: XabPro=uxab;
             [OUTRANGE]: SIGNAL( Rms$_Cod, .uxab[Xab$v_cod] );
             TES;

        xabptr=.uxab[Xab$a_nxt];       ! On to next XAB
        END;

WHILE 1 DO
	BEGIN
        LABEL Do_Name;

        omtype=.mtype;
        mtype=Dap$Get_Header(DD[$]);

	SELECTONE .MTYPE OF SET

	[DAP$K_ATTRIBUTES]:
		BEGIN
		LOCAL attmenu: BITVECTOR[42] INITIAL(0),
                      datatype: BITVECTOR[14] INITIAL(0),
                      org: INITIAL(0),
                      rfm: INITIAL(0),
                      rat: BITVECTOR[21] INITIAL(0),
                      bls: INITIAL(0),
                      mrs: INITIAL(0),
                      alq: INITIAL(0),
                      bks: INITIAL(0),
                      mrn: INITIAL(0),
                      runsys: VECTOR[CH$ALLOCATION(40)]
                              INITIAL(REP CH$ALLOCATION(40) OF (0)),
                      deq: INITIAL(0),
                      fop: BITVECTOR[42] INITIAL(0),
                      bsz: INITIAL(0),
                      dev: BITVECTOR[42] INITIAL(0),
                      sdc: BITVECTOR[42] INITIAL(0),
                      lrl: INITIAL(0),
                      hbk: INITIAL(0),
                      ebk: INITIAL(0),
                      ffb: INITIAL(0),
                      sbn: INITIAL(0);

		Dap$Get_Bitvector (dd, attmenu, 6);	!Attributes menu bits

                ! See if there is a datatype and read it.  Default the datatype
                ! to IMAGE if none was specified.

		IF .attmenu[DAP$V_ATTMENU_DAT]                  ! Datatype?
                THEN DAP$GET_BITVECTOR (dd, datatype, 2)        ! Yes read it
                ELSE datatype[DAP$V_DATATYPE_IMAGE] = 1;        ! No default it

		IF .attmenu[Dap$v_Attmenu_Org]    ! File Organization
                THEN
                    BEGIN
                    org=Dap$Get_Byte(dd);
                    Fab[Fab$v_Org]=$Dap_Translate_Value(.org,
                                                        Dap$k_Org_,Fab$k_,
                                                        Seq,Rel,Idx,Hsh);
                    END
                ELSE Fab[Fab$v_Org] = Fab$k_Seq;        ! Default        !m602

		IF .attmenu[Dap$v_Attmenu_Rfm]    ! Record Format
                THEN
                    BEGIN
                    rfm=Dap$Get_Byte(dd);
                    Fab[Fab$v_Rfm]=$Dap_Translate_Value(.rfm,
                                                        Dap$k_Rfm_,Fab$k_,
                                                        Udf,Fix,Var,
                                                        Vfc,Stm,Lsa,
                                                        Slf,Scr);      !m572
                    END
                ELSE Fab[Fab$v_Rfm] = Fab$k_Fix;  ! Default rfm        !a561

		IF .attmenu[Dap$v_Attmenu_Rat]    ! Record Attributes
                THEN
                    BEGIN
                    rat=Dap$Get_Byte(dd);
                    $Dap_Move_Bits ( Rat,Dap$v_Rat_,Fab,Fab$v_,
                                     Ftn,Cr,Prn,Blk,Lsa );
                    END
                ELSE Fab[Fab$h_Rat] = 0;                              !m602
                Fst[Fst$h_Rat] = .Fab[Fab$h_Rat];   ! in FST also     !m602

%BLISS36(
                IF .rat[Dap$v_Rat_Lsa]            ! Line-Sequenced Ascii
                THEN
                    BEGIN
                    Fab[Fab$v_Rfm]=Fab$k_Lsa;
                    Fab[Fab$b_Fsz] = 2; ! Size of sequence #              !a555
                    END;
                                        ! is a Record Format on the 10 & 20
                                        ! and a Record Attribute elsewhere
) !End %BLISS36


		IF .attmenu[Dap$v_Attmenu_Bls]
                THEN bls=Dap$Get_2byte(dd)   ! Physical Block Size
                ELSE bls=512;                ! default

		IF .attmenu[Dap$v_Attmenu_Mrs]
                THEN Fab[Fab$h_Mrs]=Dap$Get_2byte(dd)    ! Maximum Record Size
                ELSE Fab[Fab$h_Mrs]=0;  ! Default is 0 (unlimited)       !m602

                ! If an old (non-rms) access from old TOPS-20 or DIL system
                ! then bump the MRS up by 2

                IF .fab[FAB$H_MRS] NEQ 0
                   AND .fab[FAB$V_RFM] EQL FAB$K_STM
                   AND .config[XAB$B_OSTYPE] EQL XAB$K_TOPS20
                   AND .config[XAB$B_VERSION] LSS 7
                THEN fab[FAB$H_MRS] = .fab[FAB$H_MRS] + 2;

		IF .attmenu[Dap$v_Attmenu_Alq]            ! Allocation Quantity
		THEN
		    BEGIN				  ! in blocks
                    alq=Dap$Get_Longword (dd);            ! of (BLS) bytes

                    ! Convert blocks to pages if old TOPS-20 non-RMS FAL
		    !  New FAL has FILESYS of RMS-20                ![13]
                    IF .config[Xab$b_Filesys] EQL Xab$k_Filesys_Tops20
		    THEN alq=.alq/4;

                    Fab[Fab$g_Alq]=.alq;
    		    END
                ELSE Fab[Fab$g_Alq]=0;                    ! default to 0 !m602

		IF .attmenu[Dap$v_Attmenu_Bks]            ! Bucket Size
		THEN Fab[Fab$v_Bks]=Dap$Get_Byte(dd)
                ELSE Fab[Fab$v_Bks]=0;                    ! Default      !m602

		IF .attmenu[Dap$v_Attmenu_Fsz]          ! Fixed Header Size
		THEN Fab[Fab$b_Fsz]=Dap$Get_Byte(dd)    ! (of VFC record)
                ELSE Fab[Fab$b_Fsz]=0;                    ! Default      !m602

		IF .attmenu[Dap$v_Attmenu_Mrn]  ! Maximum Record Number
		THEN Fab[Fab$g_Mrn]=Dap$Get_Longword(dd)
                ELSE Fab[Fab$g_Mrn]=0;                    ! Default      !m602

		IF .attmenu[Dap$v_Attmenu_Run]  ! Runtime System
                THEN Dap$Get_Variable_String (dd,CH$PTR(runsys),40);
                ! Put in temp and forget it

		IF .attmenu[Dap$v_Attmenu_Deq]  ! Default Extension Quantity
		THEN deq=Dap$Get_2byte(dd);     ! Eat it

                ! Get the FOP.  If no FOP specified in the menu and we are
                ! talking to an old non-RMS TOPS-20 program, set the SUP bit

		IF .attmenu[DAP$V_ATTMENU_FOP]  ! File Options?
                THEN BEGIN                      ! Yes
                     DAP$GET_BITVECTOR (dd, fop, 6);
                     $DAP_MOVE_BITS(Fop,Dap$v_Fop_,Fab,Fab$v_,
                                    Rwo,Rwc,Pos,Dlk,Lck,
                                    Ctg,Sup,Nef,Tmp,Mkd,Dmo,
                                    Wck,Rck,Cif,Lko,Sqo,Mxv,Spl,
                                    Scf,Dlt,Cbt,Wat,Dfw,Tef,Drj);
                     END
                ELSE IF .config[XAB$B_OSTYPE] EQL XAB$K_TOPS20
                         AND .config[XAB$B_VERSION] LSS 7
                     THEN fab[FAB$V_SUP] = TRUE;

                !
                ! Set the byte size
                !
		IF .attmenu[Dap$v_Attmenu_Bsz]        !Byte size
                THEN bsz=Dap$Get_Byte(dd)                                 !m571
                ELSE bsz=8;

                ! Compute file class if image was specified.

                IF .datatype[DAP$V_DATATYPE_IMAGE]      ! Image mode?
                THEN BEGIN                              ! Yes, check carefully

                     ! If the machine is not a LCG machine and image was
                     ! specififed, then image mode is really 8 bit byte mode.
                     ! The -10 expects us to default to 36 bit bytes if no bsz
                     ! was specified and we have selected image mode somehow.

                     fst[FST$H_FILE_CLASS] = TYP$K_BYTE; 	! First guess

                     IF .config[XAB$B_OSTYPE] EQL XAB$K_TOPS20  ! orange
                         OR .config[XAB$B_OSTYPE] EQL XAB$K_TOPS10  ! blue?
                     THEN BEGIN
                          fst[FST$H_FILE_CLASS] = TYP$K_IMAGE;  ! 36-bit image
                          IF NOT .attmenu[DAP$V_ATTMENU_MRS]    ! No MRS?
                             AND .fab[FAB$V_RFM] EQL FAB$K_UDF  ! RFM is UDF?
                          THEN fab[FAB$H_MRS] = 512;            ! Default 512
                          IF NOT .attmenu[DAP$V_ATTMENU_BSZ]    ! No bsz?
                          THEN bsz = 36;                        ! default 36
                          END;

                     ! Don't think we need this anymore -GAS
                     !IF .bsz EQL %BPUNIT         ! These are not Bytes
                     !THEN fst[Fst$h_File_Class] = Typ$k_Image;

                     ! Default RSTS RFM is ASCII stream, and type ASCII.

                     IF .config[XAB$B_OSTYPE] EQL XAB$K_RSTS     ! Is it RSTS
                       AND .rstbug[RST_BUG_NO_RFM_SPEC]         ! always buggy
                       AND NOT .attmenu[DAP$V_ATTMENU_RFM]      ! No RFM spec
                     THEN fab[FAB$V_RFM] = FAB$K_STM;            ! Default rfm

                     ! Non LCG systems call (almost) everything IMAGE because
                     ! it's all bytes to them.  Sometimes we can tell by the
                     ! presence of record attributes that are only valid for
                     ! ASCII files.  If one of those are seen then set ASCII.

                     IF (.Fab[Fab$v_Rfm] EQL Fab$k_Stm)                !a555
                     OR (.Fab[Fab$v_Rfm] EQL Fab$k_Lsa)
                     OR (.Fab[Fab$h_Rat]
                         AND (Fab$m_CR+Fab$m_Emb+Fab$m_Prn+Fab$m_Ftn))
                     THEN Fst[Fst$h_File_Class] = Typ$k_Ascii;

                     ! Check for MACY11 format.  (NOTE: Nobody uses this and it
                     ! doesn't work right in RMSFAL/RMS/FFF, NFT, FTS, and the
                     ! old FAL.)

                     IF .Fab[Fab$v_Macy11]
                     THEN Fst[Fst$h_File_Class] = Typ$k_Macy11;

                     END;               ! End of image mode checks

                ! Set the byte size (may have been changed above)

                fst[FST$H_BSZ] = fab[FAB$V_BSZ] = .bsz;     ! Set byte size

                IF .attmenu[Dap$v_Attmenu_Dev]
                THEN
                    BEGIN
                    Dap$Get_Bitvector(dd, dev, 6);	!Device characteristics
                    $Dap_Move_Bits(Dev,Dap$v_Dev_,Fab,Dev$v_,
                                   Rec,Ccl,Trm,Mdi,Sdi,Sqd,Nul,
                                   Fod,Shr,Spl,Mnt,Dmt,All,Idv,
                                   Odv,Swl,Avl,Elg,Mbx,Rtm,Rad,
                                   Rck,Wck,For,Net,Gen);                !m602
                    END;

		IF .attmenu[Dap$v_Attmenu_Sdc]
                THEN
                    BEGIN
		    Dap$Get_Bitvector (dd, sdc, 6);	
                    $Dap_Move_Bits(sdc,Dap$v_Dev_,Fab,Sdc$v_,
                                   Rec,Ccl,Trm,Mdi,Sdi,Sqd,Nul,
                                   Fod,Shr,Spl,Mnt,Dmt,All,Idv,
                                   Odv,Swl,Avl,Elg,Mbx,Rtm,Rad,
                                   Rck,Wck,For,Net,Gen);                !m602
                    END;		! spooling device characteristics

		IF .attmenu[Dap$v_Attmenu_Lrl]
                THEN lrl=Dap$Get_2byte(dd);

		IF .attmenu[Dap$v_Attmenu_Hbk]
                THEN hbk=Dap$Get_Longword(dd);

		IF .attmenu[Dap$v_Attmenu_Ebk]
                THEN ebk=Dap$Get_Longword(dd);

		IF .attmenu[Dap$v_Attmenu_Ffb]
                THEN ffb=Dap$Get_2byte(dd);

		IF .attmenu[Dap$v_Attmenu_Sbn]
                THEN sbn=Dap$Get_Longword(dd);

                !+
                ! Return the file class to the user
                ! unless he wants to override it
                !-

                IF Typ NEQ 0            !a504
                THEN
                    IF .Typ[Typ$h_Class] EQL 0
                    THEN Typ[Typ$h_Class] = .Fst[Fst$h_File_Class];


		END;                    ! End of Attributes Message

	[DAP$K_DATE_TIME]:		!Date & time extension message
		BEGIN
		LOCAL dtmstr: VECTOR[CH$ALLOCATION(18)];
                LOCAL d_dtmstr: $STR_DESCRIPTOR();
		LOCAL dtmmenu: BITVECTOR[14];	!Menu for this message
                LOCAL rvn;              ! Revision number

		CLEARV (dtmmenu);
                
                $Str_Desc_Init(Desc=d_Dtmstr, String=(18,CH$PTR(dtmstr)));
                                                                          !d544
                IF .xabdat NEQ 0        ! If we found a Date/Time XAB
                THEN
                    BEGIN
                    Dap$Get_Bitvector(dd, dtmmenu, 2);

                    IF .dtmmenu[Dap$v_Dtm_Cdt]  ! Creation date time
                    THEN    BEGIN
                            Dap$Get_Date(dd,CH$PTR(dtmstr));
                            xabdat[Xab$g_Cdt]=S$Strdt(d_dtmstr);
                            END;

                    IF .dtmmenu[Dap$v_Dtm_Rdt]  ! Read date time
                    THEN    BEGIN
                            Dap$Get_Date(dd,CH$PTR(dtmstr));
                            xabdat[Xab$g_Rdt]=S$Strdt(d_dtmstr); 
                            END;

                    IF .dtmmenu[Dap$v_Dtm_Edt]  ! Scratch date time
                    THEN    BEGIN   
                            Dap$Get_Date(dd,CH$PTR(dtmstr));
                            xabdat[Xab$g_Edt]=S$Strdt(d_dtmstr);
                            END;
                    IF .dtmmenu[Dap$v_Dtm_Rvn]  ! Revision number
                    THEN rvn=Dap$Get_2byte(dd);

                    IF .dtmmenu[Dap$v_Dtm_Bdt]  ! Backup date time
                    THEN    BEGIN   
                            Dap$Get_Date(dd,CH$PTR(dtmstr));
                            !When we put this in the RMS block we can save it
                            !xabdat[Xab$g_Bdt]=s$Strdt(d_dtmstr);
                            END;

                    IF .dtmmenu[Dap$v_Dtm_Pdt]  ! Internal date time
                    THEN    BEGIN   
                            Dap$Get_Date(dd,CH$PTR(dtmstr));
                            !When we put this in the RMS block we can save it
                            !xabdat[Xab$g_Pdt]=s$Strdt(d_dtmstr);
                            END;

                    IF .dtmmenu[Dap$v_Dtm_Adt]  ! Access date time	![12]
                    THEN    BEGIN   
                            Dap$Get_Date(dd,CH$PTR(dtmstr));
                            !When we put this in the RMS block we can save it
                            !xabdat[Xab$g_Adt]=s$Strdt(d_dtmstr);
                            END;
                    END
                ELSE Dap$Eat_Message(dd);         ! No place to put it
		END;

	[DAP$K_PROTECTION]:		! Protection extension message
               BEGIN
	       IF .xabpro NEQ 0         ! If we have a protection XAB
               THEN BEGIN               ! Then fill it in
                    LOCAL promenu: BITVECTOR[14] INITIAL(0);

                    Dap$Get_Bitvector(dd, promenu, 2);	! Get the menu

                    IF .promenu[Dap$v_Protmenu_Owner]   ! Owner protection
                    THEN BEGIN
                         %IF %DECLARED (XABPRO$A_OWNER)
                         %THEN
                         xabpro[Xabpro$h_Owner_Length]=
                             Dap$Get_Variable_String(dd,
                                                    .xabpro[Xabpro$a_Owner],
                                                    .xabpro[Xabpro$h_Owner_Size])
                        %ELSE
                            BEGIN  !  If owner area then eat the owner string
                            LOCAL owner: VECTOR[CH$ALLOCATION(40)]; 
                            Dap$Get_Variable_String(dd,CH$PTR(owner),40);
                            END;
                        %FI;
                        END;

                    IF .promenu[DAP$V_PROTMENU_PROTSYS] ! System protection
                    THEN BEGIN
                         LOCAL prot: BITVECTOR[21] INITIAL(0);
                         Dap$Get_Bitvector(dd, prot, 3);
                         xabpro[XAB$V_PROTSYS] = .prot;
                        END;

                    IF .promenu[Dap$v_Protmenu_Protown] ! Owner protection
                    THEN BEGIN
                         LOCAL prot: BITVECTOR[21] INITIAL(0);
                         Dap$Get_Bitvector(dd, prot, 3);
                         xabpro[XAB$V_PROTOWN] = .prot;
                         END;

                    IF .promenu[DAP$V_PROTMENU_PROTGRP] ! Group protection
                    THEN BEGIN
                         LOCAL prot: BITVECTOR[21] INITIAL(0);
                         Dap$Get_Bitvector(dd, prot, 3);
                         xabpro[XAB$V_PROTGRP] =  .prot;
                         END;

                    IF .promenu[DAP$V_PROTMENU_PROTWLD] ! World protection
                    THEN BEGIN
                         LOCAL prot: BITVECTOR[21] INITIAL(0);
                         Dap$Get_Bitvector(dd, prot, 3);
                         xabpro[XAB$V_PROTWLD] = .prot;
                         END;
                    END
                ELSE Dap$Eat_Message (dd);
                END;
        [Dap$k_Summary]:
                BEGIN
                IF .xabsum NEQ 0
                THEN
                    BEGIN
                    LOCAL SumMenu: BITVECTOR[42] INITIAL(0);

                    Dap$Get_Bitvector( dd, SumMenu, 6 );

                    IF .SumMenu[Dap$v_SumMenu_Nok]
                    THEN xabsum[Xab$b_Nok]=Dap$Get_Byte( Dd );

                    IF .SumMenu[Dap$v_SumMenu_Noa]
                    THEN xabsum[Xab$b_Noa]=Dap$Get_Byte( Dd );

                    ! Ignore NOR(1) and PVN(2)
                    END;
                Dap$Eat_Message( Dd );
                END;

        [Dap$k_Allocation]:
                BEGIN                                                    !m573v
                LOCAL
                    allmenu: BITVECTOR[42] INITIAL(0),
                    aid: INITIAL(0),    ! Area id for this xab
                    ad: REF $Rms_Adb[Rms$k_Max_Areas] INITIAL(.Fst[Fst$a_Adb]);

                ! Make an ADB if we haven't got one (first allocation msg)
                IF .ad EQL 0                                             !a573v
                THEN
                    BEGIN
                    $XPO_GET_MEM( UNITS=Adb$k_MaxBln, RESULT=ad, FILL=0 );
                    ad[adb$h_bid]=Adb$k_Bid;
                    ad[adb$h_bln]=Adb$k_MaxBln;
                    END;                                                 !a573^

                Dap$Get_Bitvector( dd, allmenu, 6 );

                IF .Allmenu[Dap$v_Allmenu_Vol]
                THEN Dap$Get_2Byte( dd );   ! Ignore

                IF .Allmenu[Dap$v_Allmenu_Aln]
                THEN
                    BEGIN
                    LOCAL Aln: BITVECTOR[28];
                    Dap$Get_Bitvector( dd, Aln, 4 );   ! Ignore          !m577
                    END;

                IF .Allmenu[Dap$v_Allmenu_Aop]
                THEN
                    BEGIN
                    LOCAL Aop: BITVECTOR[28];
                    Dap$Get_Bitvector( dd, Aop, 4 );   ! Ignore
                    END;

                IF .Allmenu[Dap$v_Allmenu_Loc]
                THEN Dap$Get_Byte( dd );   ! Ignore

                IF .Allmenu[Dap$v_Allmenu_Rfi]
                THEN Dap$Get_Variable_Counted( dd, 0, 16 );   ! Ignore

                IF .Allmenu[Dap$v_Allmenu_Alq]
                THEN Dap$Get_Longword( dd );    ! Ignore

                IF .Allmenu[Dap$v_Allmenu_Aid]
                THEN aid=Dap$Get_Byte( Dd );    ! Area Id

                If .XabSum NEQ 0
                THEN IF .aid GEQ .XabSum[Xab$b_Noa]
                     THEN XabSum[Xab$b_Noa] = .Aid+1;

                IF .Allmenu[Dap$v_Allmenu_Bkz]
                THEN ad[Adb$v_bkz,.Aid]=Dap$Get_Byte( Dd );

                IF .Allmenu[Dap$v_Allmenu_Deq]
                THEN Dap$Get_2Byte( dd );   ! Ignore

                IF .xaball[.aid] NEQ 0
                THEN
                    BEGIN
                    BIND allxab=.xaball[.aid]: $XabAll_decl;

                    allxab[Xab$b_bkz]=.ad[Adb$v_Bkz,.aid];
                    END
                END;                                                   !m573^

        [Dap$k_Key]:						!610 rewritten
                BEGIN
                LOCAL
                    KeyMenu: BITVECTOR[42] INITIAL(0),
                    krf,
                    thiskdb: REF $Rms_Kdb,
                    nsg: INITIAL(0),
                    flg: BITVECTOR[18] INITIAL(0),
                    Dfl: INITIAL(0),
                    Ifl: INITIAL(0),
                    Ian: INITIAL(0),
                    Lan: INITIAL(0),
                    Dan: INITIAL(0),
                    Dtp: INITIAL(0);

                $XPO_GET_MEM( RESULT=thiskdb, UNITS=Kdb$k_Bln, FILL=0 ); !m573

                    BEGIN                                                !m573v
                    LOCAL lastkdb: REF $Rms_Kdb INITIAL(.Fst[Fst$a_Kdb]);

                    IF .lastkdb EQL 0
                    THEN Fst[Fst$a_Kdb] = .thiskdb
                    ELSE
                        BEGIN
                        WHILE .lastkdb[kdb$a_nxt] NEQ 0
                        DO lastkdb=.lastkdb[kdb$a_nxt];
                        lastkdb[kdb$a_nxt]=.thiskdb;
                        END;
                    END;                                                 !m573^

                thiskdb[kdb$h_bid]=kdb$k_bid;
                thiskdb[kdb$h_bln]=kdb$k_bln;

!+ 610
!	Store every relevant field from the DAP message into the KDB first.
!	Then, if there already is a local XAB chain, store the fields there
!	too.  Note that no local XAB chain will exist when this routine
!	is called by the FAL.
!-
                Dap$Get_Bitvector( Dd, Keymenu, 6 ); ! Get the menu

                IF .Keymenu[Dap$v_Keymenu_Flg]
                THEN
                    BEGIN
		    Dap$Get_Bitvector( Dd, flg, 2 );
                    $Dap_Move_Bits( flg,    dap$v_flg_,		!617
                                    thiskdb, kdb$v_,
                                    dup, chg, hsh );
                    END;

!+	610
!	DFL and IFL are slightly smelly, since there is no Kdb field
!	which is used to store the user's XAB value directly.  However,
!	storing the user's DAP values in the DFL/IFL offset Kdb fields
!	should be OK: If the FAL is calling this routine in response to
!	an ACCESS request, it will eventually transfer the Kdb data
!	directly to its own XAB chain; if this routine is being called
!	by the sender after an ACCESS to process returned attributes,
!	it never looks at the Kdb chain anyway...
!-

                IF .Keymenu[Dap$v_Keymenu_Dfl]
                THEN 
		    thiskdb[kdb$h_dfl_offset] =	
		    dfl =
		    Dap$Get_2Byte( Dd );

                IF .Keymenu[Dap$v_Keymenu_Ifl]
                THEN
		    thiskdb[kdb$h_ifl_offset] =
		    ifl =
		    Dap$Get_2Byte( Dd );

                !
                ! Now get the position and size of each segment
                !
                IF .KeyMenu[Dap$v_Keymenu_Nsg]
                THEN nsg = Dap$Get_Byte( Dd );                            !m577

                INCR i from 0 to .nsg-1
                DO
                   BEGIN
		   BIND SegVec=thiskdb[Kdb$z_Segments]: BLOCK;           !m573

		SegVec[ .i, %FIELDEXPAND(xab$h_pos0, 1), 18, 0 ] =
			Dap$Get_2Byte( dd );

		SegVec[ .i, %FIELDEXPAND(xab$h_siz0, 1), 18, 0 ] =
			Dap$Get_Byte( dd );

		   END;

                IF .Keymenu[Dap$v_Keymenu_Ref]
                THEN krf = Dap$Get_Byte( Dd )
                ELSE krf=0;

                thiskdb[Kdb$h_Reference]=.krf;  ! Store ref in KDB

!+ 610
!	KNM is special.  If we have a DAP KNM text but no local key XAB
!	chain to store its pointer in, get a block of dynamic memory for
!	the text and store a pointer to it in the KNMBUF pointer vector.
!	If the KNMBUF pointer already exists, clear its block for re-use.
!	If there is a local key XAB and it has a KNM pointer, use that
!	pointer and read the DAP text into where it points; if there is
!	no pointer in the XAB's KNM field, read the DAP text and ignore it.
!	Note the following: DAP KNM fields can be 40 bytes long, while
!	RMS-20 limits KNMs to 30 bytes; VMS always sends a DAP KNM of
!	32 (decimal) length padded with null bytes, regardless of the
!	actual length of the text.
!-

                IF .Keymenu[Dap$v_Keymenu_Knm] 
                THEN
                BEGIN
                     LOCAL KnmPtr: INITIAL(0);

                     IF .xabkey[.krf] NEQ 0
                     THEN
                          BEGIN
                          BIND keyxab = UAddr(.xabkey[.krf]): $XabKey_decl;
                          IF .keyxab[Xab$a_Knm] NEQ 0
                          THEN
                              BEGIN
                              knmPtr = UAddr(.keyxab[Xab$a_Knm]);
                              $clear (.KnmPtr,(Knmcharsiz/(%BPVAL/7)));
                              END;
                          END
                     ELSE
                     BEGIN
                         IF .KnmBuf[.krf] NEQ 0
                         THEN
                             BEGIN
                             KnmPtr = .KnmBuf[.krf];
                             $clear (.KnmPtr,(40/(%BPVAL/8)));
                             END
                         ELSE
                             BEGIN
                             $XPO_GET_MEM( RESULT=KnmBuf[.krf],
                                           UNITS=(40/(%BPVAL/8)),FILL=0);
                             KnmPtr = .KnmBuf[.krf];
                             END;
                     END;

                     BEGIN
                     LOCAL KnmTxt: BYTE8VECTOR[40] INITIAL(0);

                     Dap$Get_Variable_String (
				             dd,
                                             CH$PTR(KnmTxt),
                                             40 );
                    IF .KnmPtr NEQ 0
                    THEN
                        BEGIN
                        IF .rmssec EQL 0 
                        THEN $move_words ( KnmTxt,
                                           .KnmPtr,
                                           (Knmcharsiz/(%BPVAL/7)))
                        ELSE $Rms$Xcopy  ( KnmTxt,
                                           .KnmPtr,
                                           (Knmcharsiz/(%BPVAL/7)));
                        END;
                     END;

                END;  !KNM
                
		IF .Keymenu[Dap$v_Keymenu_Nul]      ! Ignore
		THEN Dap$Get_Byte( dd );

		IF .Keymenu[Dap$v_Keymenu_Ian]
		THEN 
		    thiskdb[kdb$b_ian] =
		    Ian =
		    Dap$Get_Byte( Dd );

!+ 610
!	Read the LAN (it will go only into the local XAB chain)
!-

		IF .Keymenu[Dap$v_Keymenu_Lan]
		THEN				
		    Lan =
                    Dap$Get_Byte( Dd );

		IF .Keymenu[Dap$v_Keymenu_Dan]
		THEN 
		    thiskdb[kdb$b_dan] =
		    Dan =
		    Dap$Get_Byte( Dd );

		IF .KeyMenu[Dap$v_Keymenu_Dtp]                       !m571
		THEN
                    thiskdb[kdb$v_datatype] =
                    Dtp =
        	    $Dap_Translate_Value( Dap$Get_Byte( Dd ),
                                              Dap$k_dtp_,
                                              Xab$k_,
                                              stg, ebc, six, pac, in4, fl1,
                                              fl2, gfl, in8, as8, bn4, bn8 );


                IF .XabSum NEQ 0
                THEN
                    IF .krf GEQ .XabSum[Xab$b_Nok]
                    THEN XabSum[Xab$b_Nok] = .krf+1;

!+ 610
!	Now store the relevant fields into the local XAB chain if one exists
!-

                IF .xabkey[.krf] NEQ 0
                THEN
                    BEGIN
                    BIND keyxab = UAddr(.xabkey[.krf]): $XabKey_decl; !m515
                    LOCAL keyseg: REF VECTOR;

                    keyseg=keyxab[xab$h_siz0];  !m515

                    $Dap_Move_Bits( flg,    dap$v_flg_,		!617
                                    keyxab, xab$v_,
                                    dup, chg, hsh );

                    keyxab[xab$b_ref]=.krf;     ! key # for this XAB

                    INCR i from 0 TO .nsg-1
                    DO (BIND SegVec=thiskdb[Kdb$z_Segments]: VECTOR;  !m573
                        keyseg[.i]=.SegVec[.i]);  ! Copy pos/siz pairs


                    IF .Keymenu[Dap$v_Keymenu_Ian]
		    THEN keyxab[xab$b_Ian] = .Ian;

                    IF .Keymenu[Dap$v_Keymenu_Lan]
                    THEN keyxab[xab$b_Lan]=.Lan;

                    IF .Keymenu[Dap$v_Keymenu_Dan]
		    THEN keyxab[xab$b_Dan] = .Dan;

                    IF .KeyMenu[Dap$v_Keymenu_Dtp]                       !m571
                    THEN
                        keyxab[xab$v_dtp] = .Dtp;


                    ! Ignore the remaining fields
                    END;

                Dap$Eat_Message( Dd );

                END;

	[DAP$K_NAME]:
	Do_Name:BEGIN
                BIND nam=UAddr(.Fab[Fab$a_Nam]): $Nam_Decl;     !m507

		LOCAL filespec: VECTOR[CH$ALLOCATION(255)];	!Store filespec
		LOCAL nametype: BITVECTOR[21];
                LOCAL
                      nas;              ! Length of name
                LOCAL delim;

                REGISTER dont_touch_me_there = 6;                        !m566
                ! This is because, if you pass a 1-word global byte pointer
                ! to a MOVSLJ or its fiends, it will turn it into a 2-word
                ! global.  The people who wrote the BLISS compiler do not
                ! know this, and do not expect this register to get clobbered.
                dont_touch_me_there = .dont_touch_me_there;

                CLEARV ( nametype );

		Dap$Get_Bitvector ( dd, nametype, 3);

                IF (.nametype AND .nametypes_seen) NEQ 0
                THEN RETURN Dap$Unget_Header(dd);
                ! If this is the second NAME message of this type for this call
                ! then it must be for the next file and should not be
                ! read until the next call (Directory List)
                ! So we regurgitate it and return

                nametypes_seen=.nametypes_seen OR .nametype;

                IF Nam EQL 0
                THEN
                    BEGIN
                    Dap$Eat_Message ( dd );
                    ! Must have a NAM block or ignore this message
                    LEAVE Do_Name;
                    END;

                IF .nametype[Dap$k_Nametype_Str]        ! Structure
                THEN
                    BEGIN
                    Nam[Nam$a_Dev]=CH$PLUS( .Nam[Nam$a_Rsa],
                                            .Nam[Nam$b_Node] );

                    Nam[Nam$b_Dev] =    ! Store device here               !m566
                        Dap$Get_Variable_String( dd,
                                                 UAPointer(.Nam[Nam$a_Dev]),
                                                 DEVICE_NAME_LENGTH);

                    Nam[Nam$a_Dir]=CH$PLUS( .Nam[Nam$a_Dev],
                                            .Nam[Nam$b_Dev] );

                    Nam[Nam$v_Cha_Str]=1;
                    Nam[Nam$v_Wildcard]=1; ! Something is wildcarded
                                               ! (not necessarily this)
                                               ! (3-part name indicates this)
                    END;

                IF .nametype[Dap$k_Nametype_Dir]        ! Directory
                THEN
                    BEGIN
                    Nam[Nam$b_Dir] =    ! Store directory & length
                        Dap$Get_Variable_String(Dd,
                                                UAPointer(.Nam[Nam$a_Dir]),
                                                Directory_Name_Length);
                    Nam[Nam$a_Name]=CH$PLUS(.Nam[Nam$a_Dir],
                                            .Nam[Nam$b_Dir]);

                    Nam[Nam$v_Cha_Dir]=1;
                    Nam[Nam$v_Wildcard]=1; ! Something is wildcarded
                    END;

                IF .nametype[Dap$k_Nametype_Nam]        ! File name
                THEN
                    BEGIN
                    LOCAL D_Filespec: $str_Descriptor(Class=Dynamic);
                    LOCAL Bd_Filespec: $str_Descriptor(Class=Bounded);
                    LOCAL nas;
                    
!+ 641
!  If we have a name NAME message, but never got a directory
!  or volume, eat it.
!-

                    IF NOT ((.Nametypes_Seen[Dap$k_Nametype_Dir])
                            AND (.Nametypes_Seen[Dap$k_Nametype_Str]))
                    THEN
                        BEGIN
                        Dap$Eat_Message ( dd );
                        LEAVE Do_Name;
                        END;


                    $STR_DESC_INIT(DESC=D_Filespec, CLASS=Dynamic);
                    $XPO_GET_MEM(DESC=D_Filespec, CHARACTERS=255);
                                        
                    Nas=Dap$get_Variable_String(Dd,  ! Get file name in temp
                                                .d_Filespec[Str$a_Pointer],
                                                255);

                    $STR_DESC_INIT( DESC=BD_FILESPEC, CLASS=BOUNDED,  !a572
                                    STRING=(.nas, .d_filespec[STR$A_POINTER]));

                    D$Name_Decompose( bd_filespec, nam );              !m572

                    Nam[Nam$h_Rsl] =    ! Recompute resultant length !a566
                        .Nam[Nam$b_Node] +
                        .Nam[Nam$b_Dev] +
                        .Nam[Nam$b_Dir] +
                        .Nam[Nam$b_Name] +
                        .Nam[Nam$b_Type] +
                        .Nam[Nam$b_Ver];

                    $XPO_FREE_MEM(STRING=D_FILESPEC);
                    END;

                IF .NAMETYPE[DAP$K_NAMETYPE_FSP]        ! Resultant filespec
                THEN
                    BEGIN                           ! Store resultant filespec
                    LOCAL ressize;                  ! Length of resultant
                    IF (ressize=DAP$GET_BYTE(DD[$])) GTR 0    ! if non-null
                    THEN
                        BEGIN
                        Nam[Nam$a_Node]=.Nam[Nam$a_Rsa];                  !d571
                        Nam[Nam$a_Dev]=CH$PLUS(.Nam[Nam$a_Node],
                                               .Nam[Nam$b_Node]);

                        IF .ressize+.Nam[Nam$b_Node] GEQ .NAM[NAM$H_RSS]
                        THEN            ! Make sure it will fit
                            SIGNAL(RMS$_NAM, 0, FAB[$]) ![11] Too big
                        ELSE
                            BEGIN
                            LOCAL rptr,
                                  rlen;

                            rlen=.nam[NAM$H_RSS]-.nam[NAM$B_NODE];        !m571
                            rptr=UAPointer(.NAM[NAM$A_DEV]);              !m571

                            Dap$Unget_Byte(dd);  ! string getter needs count
                            nam[NAM$H_RSL]
                                =Dap$Get_Variable_String(dd,.rptr,.rlen)
                                 +.nam[NAM$B_NODE];

                            IF .NameTypes_Seen[DAP$K_NAMETYPE_NAM] EQL 0  !m575
                            THEN
                                BEGIN
                                LOCAL rdesc: $STR_DESCRIPTOR( CLASS=BOUNDED,
                                                  STRING=(.rlen,.rptr) );
                                d$Name_decompose( rdesc, nam );

                                ! Recompute resultant length
                                Nam[Nam$h_Rsl] =                          !a575
                                    .Nam[Nam$b_Node] +
                                    .Nam[Nam$b_Dev] +
                                    .Nam[Nam$b_Dir] +
                                    .Nam[Nam$b_Name] +
                                    .Nam[Nam$b_Type] +
                                    .Nam[Nam$b_Ver];
                                END;
                            END;
                        END;
                    END;                                                  !d571
		END;

	[Dap$k_Access]:               	![14] Regurgitate
            BEGIN                   	!      and return
            Dap$Unget_Header(dd);   	!      so access
            RETURN Dap$k_Access;    	!      message getter
	    END;                    	!      can get it

	[Dap$k_Status]:			! Some sort of error from other end
            RETURN Dap$Get_Status(dd);    ! Get Status                !d566

        [Dap$k_Access_Complete]:        ! Rename & Delete would return ACM
            BEGIN
            BIND Fst=.Fab[Fab$a_Ifi]: $Rms_Fst;
            LOCAL cmpfunc;
            LOCAL fop: BITVECTOR[42];

            ! Get the function code
            cmpfunc=Dap$Get_Byte(dd);

            ! Get the FOP, if any
            Dap$Get_Bitvector (dd, fop, 6);
            $Dap_Move_Bits(fop,Dap$k_Fop_,Fab,Fab$v_,
                           Rwo,Rwc,Pos,Dlk,Lck,
                           Ctg,Sup,Nef,Tmp,Mkd,Dmo,
                           Wck,Rck,Cif,Lko,Sqo,Mxv,Spl,
                           Scf,Dlt,Cbt,Wat,Dfw,Tef,
                           Drj);


                IF .dd[Dap$h_Bytes_Remaining] GTR 0
                THEN
                    BEGIN
                    LOCAL checksum;
                    checksum=Dap$Get_2byte(dd);
                    ! Do not expect checksum here, ($RENAME, $ERASE)
                    END;

            CASE .cmpfunc FROM 1 TO Dap$k_Accomp_Max OF
            SET
            [Dap$k_Accomp_Response]:
		BEGIN
                Fst[Fst$v_File_Open] =          ! No file open !a547
                Fst[Fst$v_Access_Active]=0;     ! Access is no longer active

                !% FAL WORKAROUND
                ! If all we get is an ACCESS COMPLETE (without any attrs first)
                ! Then assume we cannot access the directory.
                ! For some reason TOPS-10 & TOPS-20 FALs do not give a status
                ! for this, but merely return immediate ACCESS COMPLETE!!!
                ! RSTS does exactly the same thing on file-not-found

                IF (.omtype EQL -1)       ! First message of this call?
                AND (.T20bug[T20_Bug_No_Dir_Prv] ! And workaround enabled
                     OR .Rstbug[Rst_Bug_No_Dir_Fnf])
                AND (.Fst[Fst$v_Display] NEQ 0)  ! and we wanted attrs  !m574
                THEN
                    BEGIN
                    SELECT .Config[Xab$b_Ostype] OF
                       SET
                       [Dap$k_Tops20,
                        Dap$k_Tops10]: Fab[Fab$h_Sts]=Rms$_Prv;         !m572
                       [Dap$k_Rsts]:   Fab[Fab$h_Sts]=Rms$_Fnf;
                       [Dap$k_Tops20, Dap$k_Rsts]:
                            SIGNAL ( .Fab[Fab$h_Sts], 0, Fab);
                       TES;
                    END;
                END;

            [INRANGE]:
                RETURN Dap$Unget_Header( dd ); ! Regurgitate

            [OUTRANGE]: Dap_Error( dd, Dap$k_Mac_Sync,Dap$k_Access_Complete );

            TES;
            RETURN Dap$k_Access_Complete
            END;

	[DAP$K_ACK]:
            BEGIN
            Fst[Fst$v_Access_Active] = Fst[Fst$v_File_Open] = 1;
            RETURN Dap$k_Ack;       ! Normal exit from this routine
            END;
	[DAP$K_CONTINUE]:               ! Eat leftover continue message   !a566
	    BEGIN
	    Dap$Eat_Message( dd );
	    END;

	[OTHERWISE]:
            BEGIN
            Dap_Error(dd, Dap$k_Mac_Sync,.dd[Dap$b_Operator]);
            RETURN .dd[Dap$b_Operator]
	    END;
	TES;
	END;	!WHILE 1
.mtype                           ! Return message type if we ever get here
END;  !End of DAP$$GET_ATTRIBUTES (D$GATT) (process ATTRIBUTES)
ROUTINE d$name_decompose( pd_filespec: REF $Str_descriptor(CLASS=BOUNDED),
                          nam: REF $Nam_decl ) : NOVALUE =
    BEGIN
    BIND bd_filespec=.pd_filespec: $STR_DESCRIPTOR(CLASS=BOUNDED);
    LOCAL delim;

    DO
        BEGIN
        $Str_Scan( Remainder=Bd_Filespec, Substring=Bd_Filespec,
                   Delimiter=Delim,
                   Stop='.;<:[');
        SELECT .delim OF
            SET
            [%C':']:
                BEGIN
                Str_Include( Bd_filespec, 1 );   ! Include :
                Nam[Nam$b_Dev] = .Bd_filespec[Str$h_Length];
                $Str_Copy( String=Bd_Filespec,
                           Target=(.Nam[Nam$b_Dev],
                                   UAPointer(.Nam[Nam$a_Dev]) ) ); !m606

                Nam[Nam$a_Dir] = Nam[Nam$a_Name]
                   = Nam[Nam$a_Type] = Nam[Nam$a_Ver]
                   = CH$PLUS( .Nam[Nam$a_Dev], .Nam[Nam$b_Dev] );
                END;
            [%C'<', %C'[']:
                BEGIN
                $Str_Scan( Remainder=Bd_Filespec, Substring=Bd_Filespec,
                           STOP='>]' );
                Str_Include( Bd_filespec, 1 );   ! Include close bracket
                Nam[Nam$b_Dir] = .Bd_filespec[Str$h_Length];
                $Str_Copy( String=Bd_Filespec,
                           Target=(.Nam[Nam$b_Dir],
                                   UAPointer(.Nam[Nam$a_Dir]) ) );   !m606

                Nam[Nam$a_Name] = Nam[Nam$a_Type] = Nam[Nam$a_Ver]
                   = CH$PLUS( .Nam[Nam$a_Dir], .Nam[Nam$b_Dir] );
                END;
            [OTHERWISE]: EXITLOOP;
            [ALWAYS]: Str_Exclude( Bd_Filespec, .Bd_Filespec[Str$h_Length] );
            TES;
        END WHILE 1;

    Nam[Nam$b_Name]=.BD_Filespec[Str$h_Length];

    $Str_Copy( String=Bd_Filespec,      ! Store filename
               Target=(.Nam[Nam$b_Name], UAPointer(.Nam[Nam$a_Name])) );

    Nam[Nam$a_Type] = Nam[Nam$a_Ver]
     = CH$PLUS(.Nam[Nam$a_Name], .Nam[Nam$b_Name]);

    IF .delim EQL %C'.'
    THEN
        BEGIN
        Bd_Filespec[Str$h_Length]=
         .Bd_Filespec[Str$h_Length]+1; ! skip delimiter
        $Str_Scan(Remainder=Bd_Filespec,
                  Substring=Bd_Filespec,
                  Delimiter=Delim,
                  Stop='.;<');

        Str_Exclude( Bd_Filespec, -1 ); ! Put back .    !a566
        ! a "negative exclude" is a leftward include.

        Nam[Nam$b_Type]=.Bd_Filespec[Str$h_Length];     !m566

        $Str_Copy( String=Bd_Filespec,                  !a566
                   Target=(.Nam[Nam$b_Type],
                           UAPointer(.Nam[Nam$a_Type])) );

        Nam[Nam$a_Ver]=CH$PLUS( .Nam[Nam$a_Type],
                                .Nam[Nam$b_Type] );
        END;

    IF (.delim EQL %C';') OR (.delim EQL %C'.')
    THEN                ! Version/Generation number
        BEGIN
        $str_Scan(Remainder=Bd_Filespec,
                  Substring=Bd_Filespec,
                  Delimiter=.delim,
                  Span=';.0123456789-*');  ! Generation number

        ! store the length of generation number
        ! if it really is a generation number,
        ! i.e. .### or ;###.
        ! If we really got ;T or ;Afoo or ;P#####, ignore it.

        IF .Bd_Filespec[Str$h_Length] GTR 1
        THEN
            BEGIN
            Nam[Nam$b_Ver]=.Bd_Filespec[Str$h_Length];
            $Str_Copy( String=Bd_Filespec,
                       Target=(.Nam[Nam$b_Ver],
                               UAPointer(.Nam[Nam$a_Ver])) );
            END;
        END;
    END; !D$name_Decompose                                         !m572^^
GLOBAL ROUTINE Dap$Put_Config (p_dd: REF $Dap_Descriptor, Bufsiz): NOVALUE=
!++
! FUNCTIONAL DESCRIPTION:
!
!	Build a CONFIG message, using specified buffer size
!
! FORMAL PARAMETERS:
!
!       P_DD:   Addr of DAP message descriptor
!       BUFSIZ: Buffer size to send to other system
!
!--
    BEGIN				
    BIND dd=.p_dd: $Dap_Descriptor;

    Init_Message (dd);                  ! 
    dd[Dap$b_Operator]=Dap$k_Config;    ! Build header
    Dap$Put_Header( dd );               !
    Dap$Put_2byte( dd, .Bufsiz );       ! Put buffersize
    Dap$Put_Byte( dd, .OurCfg[Xab$b_OsType] );  ! Operating system type
    Dap$Put_Byte( dd, .OurCfg[Xab$b_FileSys] ); ! File system type

    Dap$Put_Byte( dd, .OurCfg[Xab$b_Version] ); ! Dap version (i.e. 7)
    Dap$Put_Byte( dd, .OurCfg[Xab$b_EcoNum] );  ! Dap ECO     (.e.  0 for 7.0)
    Dap$Put_Byte( dd, .OurCfg[Xab$b_UsrNum] );  ! User mod level (7.0-1)
    Dap$Put_Byte( dd, .OurCfg[Xab$b_DecVer] );  ! Dec software level
    Dap$Put_Byte( dd, .OurCfg[Xab$b_UsrVer] );  ! User software level  !m555

    Dap$Put_Bitvector ( dd, OurCfg[Xab$v_Syscap], 12 ); ! system capabilities
    END;                                ! DAP$PUT_CONFIG
GLOBAL ROUTINE Dap$Put_Attributes (P_Dd: REF $Dap_Descriptor,
                                     P_Fab: REF $Fab_Decl) : NOVALUE=
!++
! FUNCTIONAL DESCRIPTION:
!
!	Build attributes message from associated file block & send it.
!
! FORMAL PARAMETERS:
!
!       P_DD:  Address of a DAP descriptor
!       P_FAB: Address of RMS FAB
!              This routine uses the FST pointed to by the FAB
!
! IMPLICIT INPUTS:
!
!       FST: Address of FST
!
! IMPLICIT OUTPUTS:
!
!	An ATTRIBUTES message is put in the output buffer.
!--
BEGIN
BIND Dd=.P_dd: $Dap_Descriptor;
BIND Fab=.P_Fab: $Fab_Decl;
                                                                     !d572
LOCAL display: BITVECTOR[32];
LOCAL xabptr;
LITERAL Create_Display_Mask = 
    NOT ( (1^Dap$v_Display_Summary) 
          OR 1^Dap$v_Display_3_Part_Name OR (1^Dap$v_Display_Name) ); !m574
    ! No name or summary message from accessing process, please       !a545

display = .Fst[Fst$v_Display];          ! Get display bits from FST !m545
                                                                    !d545
!
! Only send key & alloc xabs if opening file
!

Fst[Fst$v_Display]=
   (SELECT .Fst[Fst$b_Operation] OF
        SET
        [Dap$k_Open,
         Dap$k_Erase,
         Dap$k_Rename]:
           IF .Fst[Fst$v_Cif]
           THEN .display AND Create_Display_Mask  ! this may create     !m545
           ELSE  1^Dap$v_Display_Att;   ! Main attributes only

        [Dap$k_Create]: .display AND Create_Display_Mask                !m545
        TES);

!
! Send attributes and xab msgs as required
!
Dap$$Put_Attributes (Dd, Fab, .Fst);

Fst[Fst$v_Display]=.display;            ! Set display bits for Access msg

END; ![15] Make this call another, so FAL can specify the FST separately
GLOBAL ROUTINE Dap$$Put_Attributes (P_Dd: REF $Dap_Descriptor,
                                      P_Fab: REF $Fab_Decl,
                                      P_Fst: REF $Rms_Fst): NOVALUE=
!++
! FUNCTIONAL DESCRIPTION:
!
!	Build attributes message from associated file block & send it.
!
! FORMAL PARAMETERS:
!
!       P_DD: Address of a DAP descriptor
!       P_FAB: Address of  FAB
!       P_FST: Address of FST
!
! IMPLICIT OUTPUTS:
!
!	An ATTRIBUTES message is put in the output buffer.
!
!--
BEGIN
BIND
     dd=.P_Dd: $Dap_Descriptor,
     Fab=.P_Fab: $Fab_Decl,
     Fst=.P_Fst: $Rms_Fst,
     Typ=UAddr(.Fab[Fab$a_Typ]): $Typ_Decl,
     Nam=UAddr(.Fab[Fab$a_Nam]): $Nam_decl,
     Config=.Fst[Fst$a_Config]: $XabCfg_Decl;

LOCAL
	mlength: INITIAL(0),		!Length of this message (data portion)
	attmenu: BITVECTOR[42] INITIAL(0),      !Attributes menu field
        display: BITVECTOR[32] INITIAL(0),      !Display bits
        class,
	datatype: BITVECTOR[14] INITIAL(0),     !Data representation
	org: INITIAL(0),			!File organization
	rfm: INITIAL(0),			!Record format
	rat: BITVECTOR[21] INITIAL(0),		!Record attributes
	bls: INITIAL(512),     ![4] default=512	!Block size
	mrs: INITIAL(0),			!Record size
	bks: INITIAL(0),			!Bucket size
	fsz: INITIAL(0),			!Fixed portion size
	runsys: BYTE8VECTOR[41] INITIAL(0),     !Runtime system
	deq: INITIAL(0),			!Default extension quantity
	bsz: INITIAL(0),			!Byte size
	dev: BITVECTOR[42] INITIAL(0),		!Device characteristics
	sdc: BITVECTOR[42] INITIAL(0),		!Spooling dev characteristics
	ffb: INITIAL(0),                ! First free byte
	ebk: INITIAL(0),                ! Ending block number
	nok: INITIAL(0),
	noa: INITIAL(0),
	nor: INITIAL(0),
        BufKnm:  BYTE8VECTOR[40] INITIAL(0),	!610 
	fop: BITVECTOR[42] INITIAL(0);

! Following is duplicated from Dap$$Get_Attributes

LOCAL
     xabptr,
     xaball: VECTOR[32] INITIAL(0),
     xabpro: REF $XabPro_decl INITIAL(0),
     xabcfg: REF $XabCfg_decl INITIAL(0),
     xabsum: REF $XabSum_decl INITIAL(0),
     xabdat: REF $XabDat_decl INITIAL(0),
     xabkey: VECTOR[256] INITIAL(0);            ! We can have 255 of these!

! Find our XABs
     xabptr = .Fab[Fab$a_Xab];

     WHILE .xabptr NEQ 0
     DO
        BEGIN
        BIND uxab=UAddr( .xabptr ): $XabKey_decl;

        CASE .Uxab[Xab$v_Cod] FROM 0 TO Xab$k_cod_max OF   ! COD not BID !m515
             SET
             [Xab$k_Sum]: XabSum=uxab;
             [Xab$k_All]: BEGIN
                          MAP uxab: $XabAll_decl;
                          XabAll[ .uxab[Xab$b_aid] ] = uxab;
                          END;
             [Xab$k_Dat]: XabDat=uxab;
             [Xab$k_Cfg]: XabCfg=uxab;
             [Xab$k_Key]: XabKey[ .uxab[Xab$b_ref] ] = uxab;
             [XAB$K_PRO]: xabpro = uxab;
             [OUTRANGE]: SIGNAL( Rms$_Cod, .uxab[Xab$v_cod] );
             TES;

        xabptr=.uxab[Xab$a_nxt];       ! On to next XAB
        END;

! End of code duplicated from Dap$$Get_Attributes

Display=.Fst[Fst$v_Display];            ! Display flags

!+
! Build and send Attributes Message
!-

IF .Display[Dap$v_Display_Attributes]
THEN
    BEGIN
    bsz=.Fab[Fab$v_Bsz];                ! Byte size
    mrs=.Fab[Fab$h_Mrs];                ! Max record size                 !a571

    ! Set up DATATYPE

    Class = .Fst[Fst$h_File_Class];     ! We have determined a file class !m555
                                        ! already, use it        

    CASE .class FROM 0 TO Typ$k_Class_Max OF
        SET
        [0]: datatype = 0;              ! Should not occur

        [Typ$k_Ascii]:
            BEGIN
            datatype[Dap$v_Datatype_Ascii]=1;
            bls=Our_Block_Size*(%BPVAL/.bsz);     ! Block size in bytes
            END;                                                          !d555

        [Typ$k_Byte, 
         Typ$k_Image,
         Typ$k_DIL8]: datatype[Dap$v_Datatype_Image]=1;

        [Typ$k_Macy11]:
            BEGIN
            datatype[Dap$v_Datatype_Image]=1;   ! Looks like image on remote
            !% rat[Dap$v_Rat_Macy11]=1;
            !  Nobody supports this bit
            END;
        [OUTRANGE]: SIGNAL(Dap$_Aor,0,typ);
        TES;

    ! The following is for support of file bytesize and count for NFT-20's
    ! directory command.

    IF .config[XAB$B_FILESYS] EQL XAB$K_FILESYS_TOPS20  ! NFT?
    THEN BEGIN                                  ! It's a NFT directory command
         LOCAL f_size, f_bpw, f_byv;            ! Holds file size, bytes per wd
         f_byv = s$fbbyv (.fab[FAB$H_JFN]);     ! Get real byte size word
         bsz = .f_byv<24,6>;                    ! BLISS wants it this way
         f_bpw = 36 / .bsz;                     ! Compute bytes per word
         bls = .f_bpw * 512;                    ! BLS is bytes_per_word * 512
         f_size = s$fbsiz (.fab[FAB$H_JFN]);    ! Get file size
         ebk = 1 + (.f_size / .bls);            ! Compute the EBK
         ffb = .f_size MOD .bls;                ! Compute FFB
         END;                                   ! End of filesys TOPS20 (NFT)


    ! If image mode, we need to supply certain defaults for 36 bit copies.
    ! A BSZ of other than 8 is not supported on non-36-bit systems.  Default
    ! BSZ to 36 for 36-bit-systems.
                                                                        !m645v
    IF .class EQL TYP$K_IMAGE           ! Is it image mode?
    THEN BEGIN                          ! Yes, its image mode
         IF .config[XAB$B_OSTYPE] EQL XAB$K_TOPS20      ! Is it a 36 bit
            OR .config[XAB$B_OSTYPE] EQL XAB$K_TOPS10   ! system?
         THEN BEGIN                     ! Yes, image/variable byte size systems
              IF .config[XAB$B_FILESYS] NEQ XAB$K_FILESYS_RMS20
              THEN BEGIN                ! non-RMS-20 36-bit system image mode
                   fab[FAB$V_BSZ] = bsz = 36;   ! 36 bit bytes
                   fab[FAB$V_RFM] = FAB$K_UDF;  ! Undefined record format
                   fab[FAB$H_MRS] = bls =       ! Get blocksize
                                    (IF .config[XAB$B_OSTYPE] EQL XAB$K_TOPS10
                                     THEN 128   ! TOPS-10 128 word blocks
                                     ELSE 512); ! TOPS-20 512 word pages
                   END;
              END
         ELSE BEGIN                     ! Image and non-36-bit system
              IF .bsz NEQ 8             ! And the bytesize is not 8
              THEN BEGIN                     ! recalculate record size
                   LOCAL mrsw, bpw;
                   bpw = %BPVAL / .bsz;                 ! Bytes per word 
                   mrsw = ( .mrs + .bpw - 1 ) / .bpw;   ! words per record
                   mrs = ( ( .mrsw / 2 ) * 9 )
                         + ( ( .mrsw AND 1 ) * 5 );     ! 8-bit bytes per rec
                   END; 
              bsz = 0;                  ! Don't send byte size to non-36-bit
              END;                      ! End of image and non-36-bit system
         END;                           ! End if image mode check

                                                                         !m645^
    ! Device is a file-structured disk
    Dev[Dap$V_Dev_Mdi]=Dev[Dap$V_Dev_Fod]=Dev[Dap$V_Dev_Shr]
    =Dev[Dap$V_Dev_Mnt]=Dev[Dap$V_Dev_Idv]=Dev[Dap$V_Dev_Odv]
    =Dev[Dap$V_Dev_Avl]=Dev[Dap$v_Dev_Elg]=Dev[Dap$v_Dev_Rad]=1;


            !Turn on extension bits where needed & count # of bytes
            BEGIN
            LOCAL t;
            t=Dap$Size_Bitvector (datatype, 2, 0);
            IF (.t GTR 0) THEN
               BEGIN
               attmenu[Dap$v_Attmenu_Dat]=1;	!Remember to send it
               mlength=.mlength+.t;	!Add approprioate # of bytes
               END;

            org=$Dap_Translate_Value(.Fab[Fab$v_Org],
                                     Fab$k_,Dap$k_Org_,
                                     Seq,Rel,Idx,Dir);

            IF .org NEQ Dap$k_Org_Seq THEN
               BEGIN
               attmenu[Dap$v_Attmenu_Org]=1;
               mlength=.mlength+1;
               END;

            !+
            ! Convert the Record Format
            !-
                BEGIN                                                   !m555vv
                LITERAL Dap$k_Rfm_Lsa = Dap$k_Rfm_Vfc;  ! Lsa is a form of VFC
                                                        ! on the vax
                rfm=$Dap_Translate_Value(.Fab[fab$v_Rfm],    !Convert to DAP
                                     Fab$k_,Dap$k_Rfm_,      ! ex SCR & SLF
                                     Udf,Fix,Var,Vfc,Stm, %(SCr,SLf,)% Lsa);
                                                                          !m566

!+ 610
!  Most remote systems can't understand TOPS LSA record format, so 
!  set DAP RAT to LSA only for RMS20 systems.  The LSA RFM is converted
!  to STM here, reconverted to LSA on the TOPS20 receiving end.
!-
                IF .Fab[Fab$v_rfm] EQL Fab$k_Lsa
                AND (.Config[Xab$b_FileSys] EQL Xab$k_FileSys_RMS20)
                THEN
                    BEGIN
                    rfm=Dap$k_Rfm_Stm;
                    Rat[Dap$v_Rat_Lsa]=1;
                    END;

                END;    

            IF .rfm NEQ Dap$k_Rfm_Fix THEN
               BEGIN
               attmenu[Dap$v_Attmenu_Rfm]=1;
               mlength=.mlength+1;
               END;

            $Dap_Move_Bits(Fab,Fab$v_,rat,Dap$v_Rat_,
                           Ftn,Cr,Blk,Efc,Cbl,Lsa);

            t=Dap$Size_Bitvector (rat, 3, 0);
            IF .t GTR 0 THEN
                BEGIN
                attmenu[Dap$v_Attmenu_Rat]=1;
                mlength=.mlength+.t;
                END;

            !
            ! BLS field
            !    If talking to NFT-20 always send it
            !    If talking to RSX-11 never send it
            !    Otherwise send it if it isn't 512.
            !

            IF (.bls NEQ 512
                OR .config[XAB$B_FILESYS] EQL XAB$K_FILESYS_TOPS20)
               AND (.rsxbug[RSX_BUG_NOT_WANT_BLS]
                    AND (.config[XAB$B_FILESYS] NEQ DAP$K_FILESYS_FCS11))
            THEN attmenu[Dap$v_Attmenu_Bls] = 1;

            IF .attmenu[Dap$v_Attmenu_Bls]  ! If we are sending BLS
            THEN mlength=.mlength+2;        ! allow 2 bytes for it

            !
            ! MRS field
            !
                                                                        !d571
            IF .mrs NEQ 0 THEN
               BEGIN
               attmenu[Dap$v_Attmenu_Mrs]=1;
               mlength=.mlength+2;
               END;

            IF .Fab[Fab$g_Alq] NEQ 0 THEN
                BEGIN
                attmenu[Dap$v_Attmenu_Alq]=1;
                mlength=.mlength+$Dap_Size_Longword(.Fab[Fab$g_Alq]);
                END;

            IF .bks NEQ 0 THEN
               BEGIN
               attmenu[Dap$v_Attmenu_Bks]=1;
               mlength=.mlength+1;
               END;

            IF .fsz NEQ 0 THEN
               BEGIN
               attmenu[Dap$v_Attmenu_Fsz]=1;
               mlength=.mlength+1;                    
               END;

            IF .Fab[Fab$g_Mrn] NEQ 0
            THEN
                BEGIN
                attmenu[Dap$v_Attmenu_Mrn]=1;
                mlength=.mlength+$Dap_Size_Longword(.Fab[Fab$g_Mrn]);
                END;

            IF (t=.runsys[0]) NEQ 0 THEN
                BEGIN
                attmenu[Dap$v_Attmenu_Run]=1;
                mlength=.mlength+.t;
                END;

            IF .deq NEQ 0 THEN
               BEGIN
               attmenu[Dap$v_Attmenu_Deq]=1;
               mlength=.mlength+2;
               END;

            $Dap_Move_Bits (Fab, Fab$v_, fop, Dap$v_Fop_,
                            Rwo,Rwc,Pos,Dlk,Lck,
                            Ctg,Sup,Nef,Tmp,Mkd,Dmo,
                            Wck,Rck,Cif,Lko,Sqo,Mxv,Spl,
                            Scf,Dlt,Cbt,Wat,%(Dfw)% ,Tef,Drj);  ! DFW not supported
                                                               ! by most FALs

            t=Dap$Size_Bitvector (fop, 6, 0);
            IF .t GTR 0 THEN
               BEGIN
               attmenu[Dap$v_Attmenu_Fop]=1;
               mlength=.mlength+.t;
               END;

            IF (.bsz NEQ 0) THEN      ! Send BSZ unless 0
               BEGIN
               attmenu[Dap$v_Attmenu_Bsz]=1;
               mlength=.mlength+1;
               END;

            t=Dap$Size_Bitvector (dev, 6, 0);
            IF .t GTR 0 THEN
               BEGIN
               attmenu[Dap$v_Attmenu_Dev]=1;
               mlength=.mlength+.t;
               END;

            t=Dap$Size_Bitvector (sdc, 6, 0);
            IF .t GTR 0 THEN
               BEGIN
               attmenu[Dap$v_Attmenu_Sdc]=1;
               mlength=.mlength+.t;
               END;

           IF .ebk NEQ 0                ! Send EBK and FFB if we need to
           THEN BEGIN
                attmenu[DAP$V_ATTMENU_EBK] = 1;
                attmenu[DAP$V_ATTMENU_FFB] = 1;
                mlength = .mlength + 2 + $DAP_SIZE_LONGWORD(.ebk);
                END;

    END;                                        ! **

    mlength = .mlength + $Dap_Size_Bitvector (Attmenu, 6);



    Init_Message (dd);
    Dd[Dap$b_Operator]=Dap$k_Attributes;    ! This is attributes message
    dd[Dap$v_Mflags_Length]=1;              ! We will send length field
    Dd[Dap$h_Length]=.mlength;              ! Set up message length in header

    Dap$Put_Header (dd);                    ! Build the message header

    Dap$Put_Bitvector (dd,attmenu,6);			!Menu field

    IF .attmenu[Dap$v_Attmenu_Dat] THEN Dap$Put_Bitvector (dd, datatype, 2);
    IF .attmenu[Dap$v_Attmenu_Org] THEN Dap$Put_Byte (dd, .org);
    IF .attmenu[Dap$v_Attmenu_Rfm] THEN Dap$Put_Byte (dd, .rfm);
    IF .attmenu[Dap$v_Attmenu_Rat] THEN Dap$Put_Bitvector (dd, rat, 3);
    IF .attmenu[Dap$v_Attmenu_Bls] THEN Dap$Put_2byte (dd, .bls);
    IF .attmenu[Dap$v_Attmenu_Mrs] THEN Dap$Put_2byte (dd, .mrs);
    IF .attmenu[Dap$v_Attmenu_Alq] THEN Dap$Put_Longword (dd, .Fab[Fab$g_Alq]);
    IF .attmenu[Dap$v_Attmenu_Bks] THEN Dap$Put_Byte (dd, .bks);
    IF .attmenu[Dap$v_Attmenu_Fsz] THEN Dap$Put_Byte (dd, .fsz);
    IF .attmenu[Dap$v_Attmenu_Mrn] THEN Dap$Put_Longword (dd, .Fab[Fab$g_mrn]);
    IF .attmenu[Dap$v_Attmenu_Run]
    THEN Dap$Put_Variable_Counted (dd, CH$PTR(runsys,0,8));
    IF .attmenu[Dap$v_Attmenu_Deq] THEN Dap$Put_2byte (dd, .deq);
    IF .attmenu[Dap$v_Attmenu_Fop] THEN Dap$Put_Bitvector (dd, fop, 6);
    IF .attmenu[Dap$v_Attmenu_Bsz] THEN Dap$Put_Byte (dd, .bsz);
    IF .attmenu[Dap$v_Attmenu_Dev] THEN Dap$Put_Bitvector (dd, dev, 6);
    IF .attmenu[Dap$v_Attmenu_Sdc] THEN Dap$Put_Bitvector (dd, sdc, 6);
    IF .attmenu[DAP$V_ATTMENU_EBK] THEN DAP$PUT_LONGWORD (dd, .ebk);
    IF .attmenu[DAP$V_ATTMENU_FFB] THEN DAP$PUT_2BYTE (dd, .ffb);

    END;                                        ! End of Attributes Message


! Now send the DATE & TIME message if needed

IF .Config[Xab$v_Date_Time]
AND .XabDat NEQ 0
AND .Display[Dap$v_Display_DTM]
THEN	BEGIN
	LOCAL dtmmenu: BITVECTOR[42],	!Menu for this message
	cdt: VECTOR[CH$ALLOCATION(18)] INITIAL(0),	!Create date
	rdt: VECTOR[CH$ALLOCATION(18)] INITIAL(0),	!Update date
	edt: VECTOR[CH$ALLOCATION(18)] INITIAL(0),	!Scratch date
        cdtdesc: $Str_Descriptor( String=(18,CH$PTR(cdt))),
        rdtdesc: $Str_Descriptor( String=(18,CH$PTR(rdt))),
        edtdesc: $Str_Descriptor( String=(18,CH$PTR(edt)));

	Clearv(dtmmenu);	!initially 0
        Init_Message(dd);

	dd[Dap$h_Length]=1;		!The menu field is always sent
        dd[Dap$b_Operator] = Dap$k_Date_Time;   ! Send a date-time msg    !a545

	IF .XabDat[Xab$g_Cdt] NEQ 0 THEN
            BEGIN
            dtmmenu[Dap$v_Dtm_Cdt]=1;
            dd[Dap$h_Length]=19;
            S$DtStr( .XabDat[Xab$g_Cdt], Cdtdesc );
            END;

	IF .XabDat[Xab$g_Rdt] NEQ 0 THEN
            BEGIN
            dtmmenu[Dap$v_Dtm_Rdt]=1;
            dd[Dap$h_Length]=.dd[Dap$h_Length]+18;
            S$DtStr( .XabDat[Xab$g_Rdt], Rdtdesc );
            END;

	IF .XabDat[Xab$g_Edt] NEQ 0 THEN
            BEGIN
            dtmmenu[Dap$v_Dtm_Edt]=1;
            dd[Dap$h_Length]=.dd[Dap$h_Length]+18;
            S$DtStr( .XabDat[Xab$g_Edt], Edtdesc );
            END;

	dd[Dap$v_Mflags_Length]=1;      !Length field present
        Dap$Put_Header (dd);

	Dap$Put_Bitvector (dd, dtmmenu, 6);	!Send the menu

	!Dates are always 18-character fields
	IF .dtmmenu[Dap$v_Dtm_Cdt]
        THEN Dap$Put_Date (dd,.cdtdesc[Str$a_Pointer]);	!Creation date

	IF .dtmmenu[Dap$v_Dtm_Rdt]
        THEN Dap$Put_Date (dd,.Rdtdesc[Str$a_Pointer]);	!Revision date

	IF .dtmmenu[Dap$v_Dtm_Edt]
        THEN Dap$Put_Date (dd,.Edtdesc[Str$a_Pointer]);	!Scratch date

	END;	!of code to send DATE & TIME message

!
! Send PROTECTION message if needed
!
    IF .xabpro NEQ 0                    ! If a protection XAB was given
       AND .config[XAB$V_PROTECTION]    ! and supported on the remote
       AND .display[DAP$V_DISPLAY_PRO]  ! And it was asked for
    THEN BEGIN                          ! Send PROTECTION message if needed

         LOCAL promenu : BITVECTOR[42] INITIAL(0),
               vprotsys,                ! System protection bitvector
               vprotown,                ! Owner protection bitvector
               vprotgrp,                ! Group protection bitvector
               vprotwld;                ! World protection bitvector

         %IF %DECLARED (XABPRO$A_OWNER) ! If ever there is an owner string
         %THEN LOCAL owner : BYTE8VECTOR[40] INITIAL(0);
         %FI

        INIT_MESSAGE (dd);              ! Start building the message

        ! Remember that DAP$PUT_BITVECTOR and DAP$SIZE_BITVECTOR want an
        ! address of the bitvector, not the value of the bitvector, so move
        ! the bitvectors out of the XAB and into local storage.

        vprotsys = .xabpro[XAB$V_PROTSYS];      ! System
        vprotown = .xabpro[XAB$V_PROTOWN];      ! Owner
        vprotgrp = .xabpro[XAB$V_PROTGRP];      ! Group
        vprotwld = .xabpro[XAB$V_PROTWLD];      ! World

        ! Compute the length of the message

	dd[DAP$H_LENGTH]=               ! Compute length of the message
                (1                      ! The menu is 1 byte long
                 %IF %DECLARED (XABPRO$A_OWNER)
                 %THEN                  ! This code is for illustration only
		 +(IF (.owner[0] NEQ 0)
		   THEN	(promenu[Dap$v_ProtMenu_Owner]=1;.owner[0]+1)
		   ELSE 0)
                 %FI
		 + DAP$SIZE_BITVECTOR (vprotsys,3,1)
		 + DAP$SIZE_BITVECTOR (vprotown,3,1)
		 + DAP$SIZE_BITVECTOR (vprotgrp,3,1)
		 + DAP$SIZE_BITVECTOR (vprotwld,3,1));

        ! Turn on menu bits for each part of the protection we offer.

        promenu[DAP$V_PROTMENU_PROTSYS] =       ! System
        promenu[DAP$V_PROTMENU_PROTOWN] =       ! Owner
        promenu[DAP$V_PROTMENU_PROTGRP] =       ! Group
        promenu[DAP$V_PROTMENU_PROTWLD] = 1;    ! World

        ! Send out the header and then bitvectors for each protection field.

        dd[DAP$B_OPERATOR] = DAP$K_PROTECTION; ! Message type
        dd[DAP$V_MFLAGS_LENGTH] = 1;           ! Length field present

        DAP$PUT_HEADER (dd);                   ! Put header there
        DAP$PUT_BITVECTOR (dd, promenu, 6);    ! Protection menu

        %IF %DECLARED (XABPRO$A_OWNER) ! If ever there will be owner string
        %THEN                          ! This code is for illustration only
        IF .promenu[DAP$V_PROTMENU_OWNER]      ! OWNER string - not used here
        THEN DAP$PUT_VARIABLE_COUNTED (dd, CH$PTR(owner,0,8));
        %FI

        DAP$PUT_BITVECTOR (dd, vprotsys, 3);	! System
        DAP$PUT_BITVECTOR (dd, vprotown, 3);	! Owner
        DAP$PUT_BITVECTOR (dd, vprotgrp, 3);	! Group
        DAP$PUT_BITVECTOR (dd, vprotwld, 3);	! World

        END;                           ! code to send PROTECTION message

!
! Send SUMMARY message if needed
!
    IF .xabsum NEQ 0                    ! If a Summary XAB was given
    AND .Config[Xab$v_Summary]          ! and supported on the remote
    AND .Display[Dap$v_Display_Sum]
    THEN
	BEGIN			!Send Summary message if needed
	LOCAL SumMenu: BITVECTOR[42];

	Clearv (SumMenu);
        Init_Message (dd);
	dd[Dap$b_Operator]=Dap$k_Summary;       !Message type
	dd[Dap$v_Mflags_Length]=1;              !Length field present

        SumMenu[Dap$v_SumMenu_NoK]=1;
        SumMenu[Dap$v_SumMenu_NoA]=1;

	dd[Dap$h_Length]=
                1                               !The menu is 1 byte long
                +.SumMenu[Dap$v_SumMenu_Nok]
                +.SumMenu[Dap$v_SumMenu_NoA];

        Dap$Put_Header (dd);

	Dap$Put_Bitvector (dd, SumMenu, 6);     !Menu

	IF .SumMenu[Dap$v_SumMenu_NoK]       ! NOK field
        THEN Dap$Put_Byte (dd, .XabSum[Xab$b_NoK]);

	IF .SumMenu[Dap$v_SumMenu_NoA]       ! NOA field
        THEN Dap$Put_Byte (dd, .XabSum[Xab$b_NoA]);

%BLISS32( ! Not in RMS-20 or RMS-11

	IF .SumMenu[Dap$v_SumMenu_NoR]       ! NOR field
        THEN Dap$Put_Byte (dd, .XabSum[Xab$b_NoR]);

	IF .SumMenu[Dap$v_SumMenu_PVn]       ! PVN field
        THEN Dap$Put_Byte (dd, .XabSum[Xab$b_PVn]);

) ! End of non-20 code

	END;	!of code to send SUMMARY message



!
! Send KEY DEFINITION messages if needed
!
    IF .Config[Xab$v_Key_Definition]    ! If supported on the remote
    AND .Display[Dap$v_Display_Key]     ! And user wanted it !m513
    THEN INCR Krf FROM 0 TO 255         ! For each KEY DEFINITION XAB given
    DO  
	BEGIN
	LOCAL KeyMenu: BITVECTOR[42] INITIAL(0);
        LOCAL NSg;
        LOCAL Knmlen: INITIAL(0);
        LOCAL Dtp,
              Flg: BITVECTOR[21] INITIAL(0);

        BIND KeyXab=UAddr(.XabKey[.Krf]): $XabKey_decl; !m515

        IF KeyXab EQL 0 THEN EXITLOOP;          ! No more keys

	Clearv (KeyMenu,Flg);

        Init_Message (dd);
	dd[Dap$b_Operator]=Dap$k_Key;           !Message type
	dd[Dap$v_Mflags_Length]=1;              !Length field present

        Flg[Dap$v_Flg_Dup] = .KeyXab[Xab$v_Dup];
        Flg[Dap$v_Flg_Chg] = .KeyXab[Xab$v_Chg];
        IF .Flg NEQ 0
        THEN KeyMenu[Dap$v_KeyMenu_Flg]=1;

        IF .KeyXab[Xab$h_Dfl] NEQ 0
        THEN KeyMenu[Dap$v_KeyMenu_DFl]=1;

        IF .KeyXab[Xab$h_Ifl] NEQ 0
        THEN KeyMenu[Dap$v_KeyMenu_IFl]=1;

        KeyMenu[Dap$v_KeyMenu_Ref]=1;

!+ 610
!	If there is a KeyName field, set the menu flag, convert the
!	user's XAB KNM text into counted ASCII, and calculate the length
!	of the DAP field as <length of text>+1 byte for the count.
!	Note that if we are sending returned post-access attributes we
!	may have a Knm pointer field which points to a null Knm text (there
!	was no Knm for this key).  Set the menu flag anyway, even with
!	a text field length of zero:  this way the receiver's Knm pointer
!	will get properly updated to point to a null text string, indicating
!	the absence of the field in the file being accessed.
!-

        IF .KeyXab[Xab$a_Knm] NEQ 0
        THEN
            BEGIN

            KeyMenu[Dap$v_KeyMenu_Knm]=1;
            Knmlen = Chazac ( UAPointer(.KeyXab[Xab$a_Knm]),
                              CH$PTR(BufKnm,0,7))+1;

            END;

        IF .KeyXab[Xab$b_Ian] NEQ 0
        THEN KeyMenu[Dap$v_KeyMenu_IAn]=1;

        IF .KeyXab[Xab$b_Dan] NEQ 0
        THEN KeyMenu[Dap$v_KeyMenu_DAn]=1;

        %BLISS36(

        ! Count segments, and check the size of each.
        ! If a segment is over 255 bytes long, DAP won't hack it
        NSg=( LOCAL ks;
              LABEL CntSeg;
              CntSeg:( INCR i FROM 0 TO 7
                       DO IF (ks = .KeyXab[.i+%FIELDEXPAND(Xab$h_Siz0)]) EQL 0
                       THEN LEAVE CntSeg WITH .i
                       ELSE IF .ks GTR 255 THEN UserError( RMS$_SIZ ) ;
                       8 ) ); ! If none are zero, must be 8, the max      !m606
        ! The above depends on the fact that each Pos/Siz pair is 1 word long

        )
        %BLISS32( the above will not work on VMS )

        Dtp=$Value_Rms_Dap( .KeyXab[Xab$v_Dtp], Xab$k_, Dap$k_Dtp_, Rms$_Dtp,
                            Stg, %(In2, Bn2,)% In4, Bn4, Pac, In8, %(Bn8)% );

        IF .Dtp NEQ 0
        THEN KeyMenu[Dap$v_KeyMenu_Dtp]=1;

!+ 610
!	Number of segments is always at least 1, since a non-byte-oriented
!	key datatype may have defaulted its size to zero.
!-
	KeyMenu[Dap$v_KeyMenu_NSg] = 1;
	IF .NSg EQL 0 THEN NSg = 1;


	dd[Dap$h_Length]=
            Dap$Size_Bitvector( Keymenu, 6, 1)      ! menu may be longer !m545
            +.KeyMenu[Dap$v_Keymenu_Flg]
            +.KeyMenu[Dap$v_KeyMenu_DFl]*2
            +.KeyMenu[Dap$v_KeyMenu_IFl]*2
            +.KeyMenu[Dap$v_KeyMenu_NSg]*(1+(.NSg*3))                   !m572
            +.KeyMenu[Dap$v_KeyMenu_Ref]
            +.Knmlen							!610
            +.KeyMenu[Dap$v_KeyMenu_Dtp]
            +.KeyMenu[Dap$v_KeyMenu_IAn]
            +.KeyMenu[Dap$v_KeyMenu_DAn];
            ! Includes a 2-byte POS field & a 1-byte SIZ field per segment

        Dap$Put_Header (dd);

	Dap$Put_Bitvector (dd, KeyMenu, 6);     !Menu

	IF .KeyMenu[Dap$v_KeyMenu_Flg]       ! FLG field
        THEN Dap$Put_Bitvector (dd, Flg, 3);

	IF .KeyMenu[Dap$v_KeyMenu_DFl]       ! DFL field
        THEN Dap$Put_2Byte (dd, .KeyXab[Xab$h_DFl]);

	IF .KeyMenu[Dap$v_KeyMenu_IFl]       ! IFL field
        THEN Dap$Put_2Byte (dd, .KeyXab[Xab$h_IFl]);

	IF .KeyMenu[Dap$v_KeyMenu_NSg]       ! NSG, POS, SIZ fields
        THEN
            BEGIN
            Dap$Put_Byte (dd, .NSg);         ! Send number of segments

            INCR i FROM 0 TO .NSg-1
            DO
                BEGIN
%BLISS36(
                BIND xseg=KeyXab+.i: $XabKey_decl;
                ! This depends on the fact that a POS/SIZ pair is 1 word

                Dap$Put_2Byte( dd, .xseg[Xab$h_Pos0] );
                Dap$Put_Byte( dd, .xseg[Xab$h_Siz0] );
)
                END;
            END;

	IF .KeyMenu[Dap$v_KeyMenu_Ref]       ! REF field
        THEN Dap$Put_Byte (dd, .KeyXab[Xab$b_Ref]);

        IF .KeyMenu[Dap$v_KeyMenu_Knm]	     ! KNM field  !610
        THEN Dap$Put_Variable_Counted (dd, CH$PTR(BufKnm,0,7));

        
	IF .KeyMenu[Dap$v_KeyMenu_IAn]       ! IAN field
        THEN Dap$Put_Byte (dd, .KeyXab[Xab$b_IAn]);

!d610
	IF .KeyMenu[Dap$v_KeyMenu_LAn]       ! LAN field
        THEN Dap$Put_Byte (dd, .KeyXab[Xab$b_LAn]);


	IF .KeyMenu[Dap$v_KeyMenu_DAn]       ! DAN field
        THEN Dap$Put_Byte (dd, .KeyXab[Xab$b_DAn]);

	IF .KeyMenu[Dap$v_KeyMenu_DTp]       ! DTP field
	THEN Dap$Put_Byte (dd, .Dtp);	     !610 

	END;	!of code to send KEY DEFINITION message



!
! Send ALLOCATION messages if needed
!
    IF .Config[Xab$v_Allocation]        ! If supported on the remote
    AND .Display[Dap$v_Display_All]     ! And user wanted it !m513
    THEN INCR AId FROM 0 TO 31          ! For each ALLOCATION XAB given
    DO  
	BEGIN
	LOCAL AllMenu: BITVECTOR[42];

        Bind AllXab=.XabAll[.AId]: $XabAll_decl;

        IF AllXab EQL 0 THEN EXITLOOP;          ! No more Areas

	Clearv (AllMenu);
        Init_Message (dd);
	dd[Dap$b_Operator]=Dap$k_Allocation;    !Message type
	dd[Dap$v_Mflags_Length]=1;              !Length field present

        AllMenu[Dap$v_AllMenu_AId]=1;
        AllMenu[Dap$v_AllMenu_BKz]=1;

	dd[Dap$h_Length]=
            Dap$Size_Bitvector( Allmenu, 6, 1)      ! menu may be longer !m545
            +.AllMenu[Dap$v_AllMenu_AId]
            +.AllMenu[Dap$v_AllMenu_BKz];

        Dap$Put_Header (dd);

	Dap$Put_Bitvector (dd, AllMenu, 6);     !Menu

	IF .AllMenu[Dap$v_AllMenu_AId]       ! AID field
        THEN Dap$Put_Byte (dd, .AllXab[Xab$b_AId]);

	IF .AllMenu[Dap$v_AllMenu_BKz]       ! BKZ field
        THEN Dap$Put_Byte (dd, .AllXab[Xab$b_BKz]);

	END;	!of code to send ALLOCATION messages


!+
! Send Resultant File Name if requested
!-

IF .Display[Dap$v_Display_Name]
THEN Dap$Put_Name( dd, Fab, %REF(1^Dap$k_Nametype_Fsp) );


END;	!DAP$PUT_ATTRIBUTES
GLOBAL ROUTINE Dap$Put_Access (P_Dd: REF $Dap_Descriptor,
                                 P_Fab: REF $Fab_Decl,
                                 Accfunc,
                                 P_Accopt: REF BITVECTOR,
                                 P_Display: REF BITVECTOR,
                                 P_NFab: REF $Fab_Decl ): NOVALUE=
BEGIN
!++
! FUNCTIONAL DESCRIPTION:
!
!	build ACCESS message & put in output buffer
!
! FORMAL PARAMETERS:
!
!	P_DD: Address of DAP descriptor
!       P_FAB:  "      " RMS FAB
!       ACCFUNC: Access Function to perform
!       P_ACCOPT: Access option bits (DAP)
!       P_DISPLAY: Display Bits (DAP)
!       P_NFAB: FAB with New name for rename
!
! IMPLICIT OUTPUTS:
!
!	An ACCESS msg will be put in the output buffer
!
! ROUTINE VALUE:
!
!	NONE
!
! SIDE EFFECTS:
!
!	NONE
!
!--
BIND dd=.P_dd: $Dap_Descriptor,
     Fab=.p_Fab: $Fab_Decl,
     Nfab=.p_Nfab: REF $Fab_Decl,
     Accopt=.p_Accopt:  BITVECTOR,
     Display=.p_Display: BITVECTOR;

BIND Nam=UAddr(.Fab[Fab$a_Nam]): $Nam_Decl;    ! Name block (if any) !m507

LOCAL
      nptr,
      nlen,
      fac: BITVECTOR[21],
      shr: BITVECTOR[21],
      filedesc: $Str_Descriptor(Class=Bounded),
      rfiledesc: $Str_Descriptor(Class=Dynamic);

CLEARV (fac,shr);

Init_Message (dd);

dd[Dap$b_Operator]=Dap$k_Access;
dd[Dap$v_Mflags_Length]=1;              ! Length field present always

!Make sure we request enough access to do what we want

CASE .accfunc FROM Dap$k_Open TO Dap$k_Accfunc_Max OF
SET
[Dap$k_Open]:		Fab[Fab$v_Get]=1;	!Ask for GET access
[Dap$k_Create,
 Dap$k_Submit]:         Fab[Fab$v_Put]=1;	!Ask for PUT access
[INRANGE]: ;                            ! Not needed
[OUTRANGE]: SIGNAL (Dap$_Aor, dd);
TES;

!+
! Massage RMS FAC and SHR bits into DAP bitvectors
!-
$Dap_Move_Bits (Fab, Fab$v_, fac, Dap$v_Fac_,   ! FAC
                Get,Put,Del,Bio,Trn,Upd,Bro,App);

$Dap_Move_Bits (Fab, Fab$v_Shr, shr, Dap$v_Fac_,
                Get,Put,Del,Bio,Upd,Bro);       ! SHR
!? We will ignore the multi-stream access bit for now


! If we have a resultant name string, use it.
! If not, try expanded name string.
! If we have neither of those, or no name block at all, use the original string

IF nam NEQ 0
THEN
    BEGIN
    IF .Nam[Nam$h_Esl] NEQ 0
    THEN
        BEGIN
        nptr=UAPointer(.Nam[Nam$a_Esa]);
        nlen=.Nam[Nam$h_Esl];
        END
    ELSE
        BEGIN
        nptr=UAPointer(.Fab[Fab$a_Fna]);
        nlen=Asciz_Len(.nptr);
        END;
    END
ELSE
    BEGIN
    nptr=UAPointer(.Fab[Fab$a_Fna]);
    nlen=Asciz_Len(.nptr);
    END;

$Str_Desc_Init ( Desc=filedesc,
                 String=(.nlen, .nptr),
                 Class=Bounded );

!
! Scan off nodeid and remove access info if any
!
								![22] vv 

!
! Use the remainder string
!
IF $Str_Scan ( Remainder=filedesc, Find='::',   ! Strip up to ::
               Substring=filedesc )             ! since we will use remainder
THEN
    BEGIN
    LOCAL
	ptr,
        ch;

    filedesc[str$h_pfxlen]=.filedesc[str$h_pfxlen]+2;
    filedesc[str$a_pointer]= CH$PLUS(.filedesc[str$a_pointer], 2);
    filedesc[str$h_length]=.filedesc[str$h_maxlen]-.filedesc[str$h_pfxlen];

    ! Strip ;USERID ;PASSWORD ;CHARGE  (and ;Pnnnnn)

    ptr=.filedesc[Str$a_Pointer];

    INCR i FROM 0 TO .filedesc[Str$h_Length] DO
        BEGIN
        IF CH$RCHAR_A(ptr) EQL %c';'
        THEN SELECT CH$RCHAR(.ptr) AND %O'137' OF
        SET                         ! Uppercase and compare
        [%C'U', %C'P', %C'C']:
            BEGIN
            filedesc[Str$h_Length] = .i;
            EXITLOOP;
            END;
        TES;
        END;
    END
ELSE
    Filedesc[Str$h_Length] = .Filedesc[Str$h_MaxLen];
    ! Make the REMAINDER be the STRING

! Make a copy of the string

$Str_Desc_Init ( Desc=rfiledesc, Class=Dynamic );

$Str_Copy ( String=filedesc, Target=rfiledesc );


! Strip ^V
!?SOMEDAY

%(
IF .d$gtrace[1]                         ! For Debugging
THEN $Xpo_Put_Msg ( String=$Str_Concat('Remote File:',rfiledesc),
                    Severity=Success );

)%

!Find out how long the message will be (and build a few fields in the process)
dd[Dap$h_Length]=(1                     !Length so far=1 
                  + $Dap_Size_Bitvector (accopt, 5)  ! +# of bytes of ACCOPT
                  + .rfiledesc[str$h_length] + 1      ! [22] ^^
                  !Add length of the file name +1 for count byte
                  +$Dap_Size_Bitvector (fac, 3,
                                        shr, 3,
                                        display, 4)
                 );


!Now build the message a field at a time
Dap$Put_Header (dd);                    ! First, the message header

Dap$Put_Byte (dd, .Accfunc);            !Access function

Dap$Put_Bitvector (dd, Accopt, 5);      !Access options

Dap$Put_Byte (dd, .rfiledesc[Str$h_Length]); !Length of remote filespec
Dap$Put_String (dd, rfiledesc);         !Remote file spec	![22]

Dap$Put_Bitvector (dd, fac, 3);         !FAC

Dap$Put_Bitvector (dd, shr, 3);         !SHR

Dap$Put_Bitvector (dd, display, 4);    !DISPLAY

IF .Accfunc EQL Dap$k_Rename
THEN
    BEGIN                               ! [4] Pass address of bitvector
    LOCAL nametype: BITVECTOR[24] PRESET([Dap$k_Nametype_Fsp]=1);
    Dap$Put_Name (dd, Nfab, Nametype);  ! New name for rename
    END;

$Xpo_Free_Mem ( String=rfiledesc);      ! Free filename now [22]

END;	!Dap$Put_Access
GLOBAL ROUTINE Dap$Put_name (P_Dd: REF $Dap_Descriptor,
                             P_Fab: REF $Fab_Decl,
                             P_Name_Type: REF BITVECTOR): NOVALUE=
BEGIN
!++
! FUNCTIONAL DESCRIPTION:
!
!	Send a NAME message
!
! FORMAL PARAMETERS:
!
!	P_DD:             addr of DAP descriptor
!       P_FAB:            addr of RMS FAB
!       P_NAME_TYPE:      name type (DAP) address of bitvector
!--
BIND
    dd=.P_dd: $Dap_Descriptor,
    fab=.p_fab: $Fab_Decl,
    Nam=UAddr(.Fab[Fab$a_Nam]): $Nam_decl,
    Name_type=.P_Name_Type: BITVECTOR;

LOCAL
     ptr,
     filedesc: $Str_descriptor();
    
$Str_Desc_Init( Desc=filedesc );

SELECT 1 OF
SET
[ .Name_Type[Dap$k_Nametype_Fsp] ]:
    BEGIN
    IF Nam NEQ 0
    THEN
        BEGIN
        IF .Nam[Nam$h_Rsl] NEQ 0
        THEN $Str_Desc_Init( Desc=Filedesc,
                             String=(.Nam[Nam$h_Rsl], .Nam[Nam$a_Rsa]) )
        ELSE IF .Nam[Nam$h_Esl] NEQ 0
             THEN $Str_Desc_Init( Desc=Filedesc,
                                  String=(.Nam[Nam$h_Esl], .Nam[Nam$a_Esa]) );
        END;

    IF .Filedesc[Str$h_Length] EQL 0    ! Nothing yet
    THEN
        BEGIN
        LOCAL tfiledesc: $Str_descriptor( Class=Bounded, String=(0,0) );
        
        $Str_Desc_Init( Desc=filedesc,
                        String=Asciz_Str( (UAPointer( .Fab[Fab$a_Fna] ) ) ) ) ;
        
        IF $Str_Scan( String=filedesc,
                      Find='::',
                      Substring=tfiledesc )
        THEN $Str_Desc_Init( Desc=filedesc,
                             String=Str_Remainder( tfiledesc ) );

        ! Strip ;USERID ;PASSWORD ;CHARGE  (and ;Pnnnnn)

        ptr=.filedesc[Str$a_Pointer];

        INCR i FROM 0 TO .filedesc[Str$h_Length] DO
            BEGIN
            IF CH$RCHAR_A(ptr) EQL %c';'
            THEN SELECT CH$RCHAR(.ptr) AND %O'137' OF
            SET                         ! Uppercase and compare
            [%C'U', %C'P', %C'C']:
                BEGIN
                filedesc[Str$h_Length] = .i;
                EXITLOOP;
                END;
            TES;
            END;
        END;
    END;

[ .Name_Type[Dap$k_Nametype_Str] ]:
    BEGIN
    IF Nam EQL 0
    THEN SIGNAL(Rms$_Nam);              ! Nam block needed

    $Str_Desc_Init( Desc=filedesc,
                    String=(.Nam[Nam$b_Dev], UAPointer(.Nam[Nam$a_Dev]) ) );
    END;

[ .Name_Type[Dap$k_Nametype_Dir] ]:
    BEGIN
    IF Nam EQL 0
    THEN SIGNAL(Rms$_Nam);              ! Nam block needed

    $Str_Desc_Init( Desc=filedesc,
                    String=(.Nam[Nam$b_Dir], UAPointer(.Nam[Nam$a_Dir]) ) );
    END;

[ .Name_Type[Dap$k_Nametype_Nam] ]:
    BEGIN
    IF Nam EQL 0
    THEN SIGNAL(Rms$_Nam);              ! Nam block needed

    $Str_Desc_Init( Desc=filedesc,
                    String=(.Nam[Nam$b_Name]+.Nam[Nam$b_Type]+.Nam[Nam$b_Ver],
                            UAPointer(.Nam[Nam$a_Name]) ) );            !m561
    END;
TES;

Init_Message (dd);

dd[Dap$b_Operator]=Dap$k_Name;
dd[Dap$v_Mflags_Length]=1;	!LENGTH field present
dd[Dap$h_Length] = $Dap_Size_Bitvector (Name_Type, 3)
                   + .Filedesc[Str$h_Length] + 1;
                  ! Length of message
                  ! add 1 for count byte

Dap$Put_Header (dd);

Dap$Put_Bitvector (dd, Name_Type, 3);		       ! NAMETYPE field
Dap$Put_Byte( dd, .filedesc[Str$h_Length] );    ! Length byte
Dap$Put_String (dd, filedesc );                 ! FILESPEC field

END;
GLOBAL ROUTINE Dap$Put_Control (P_Dd: REF $Dap_Descriptor,
                                  P_Rab: REF $Rab_Decl,
                                  Cfun,
                                  P_Display: REF BITVECTOR) :NOVALUE=
BEGIN
!++
! FUNCTIONAL DESCRIPTION:
!
!	Build CONTROL message
!
! FORMAL PARAMETERS:
!
!       P_DD:      Address of DAP descriptor
!       P_RAB:     Address of RMS RAB
!	CFUN:	   Control message function code
!       P_DISPLAY: Address of display bitvector
!
!--
LOCAL
	dtp,				! Key datatype			!a504
	ctlmenu: BITVECTOR[7],
	rac,
	key: BYTE8VECTOR[255],
        krf,
        rop: BITVECTOR[42],
        rop_size,
        hsh: BITVECTOR[35],
        hsh_size,
        display_size;


BIND
    dd=.p_dd: $Dap_Descriptor,
    Rab=.P_Rab: $Rab_Decl,
    Rst=.Rab[Rab$a_Isi]: $Rms_Rst,      ! Bind the Fst                  !a557
    Fab=UAddr(.Rab[Rab$a_Fab]): $Fab_Decl,               ! Find our FAB !m506
    Fst=.Fab[Fab$a_Ifi]: $Rms_Fst,
    Config=.Fst[Fst$a_Config]: $XabCfg_decl,
    Display=.P_Display: BITVECTOR;

Clearv (ctlmenu,key,krf,rop,hsh);

Init_Message (dd);
dd[Dap$b_Operator]=Dap$k_Control;       ! This is a CONTROL message
dd[Dap$b_StreamId]=.Rst[Rst$v_StreamId];! Set up stream id              !a557
dd[Dap$v_Mflags_Length]=1;              ! Always a length field

Ctlmenu[Dap$v_Ctl_Rac]=1;               ! Always have to send a RAC

rac=$Dap_Translate_Value (.Rab[Rab$b_Rac],
                          Rab$k_, Dap$k_Rac_,
                          Seq,Key,Rfa,Tra,Blk,Bft);

CASE .Rab[Rab$b_Rac] FROM Rab$k_Seq TO Rab$k_Bft OF 
SET
[Rab$k_Seq]:                            ! See if FAL can hack it
    IF NOT .config[xab$v_sequential_access]
    THEN rac=Dap$k_Rac_Tra;             ! It can't, use file xfer mode ![16]

[Rab$k_Tra]:;

[Rab$k_Blk,                             ! Block Mode
 Rab$k_Bft]:                            ! Block mode file transfer
    BEGIN
    LOCAL keyval;

    ctlmenu[Dap$v_Ctl_Key]=1;           ! We will send the KEY
    keyval=Rms_Vbn_to_Dap (.Rab[Rab$g_Bkt]);
    key[0]=%BPVAL/8;                    ! Key is converted bucket number
    INCR i FROM 1 TO %BPVAL/8           ! 
    DO (key[.i]=.keyval; keyval=.keyval^-8);
    END;
[Rab$k_Rfa]:                            ! RFA access
    BEGIN
    ctlmenu[Dap$v_Ctl_Key]=1;           ! We will send the KEY
    Dap$Rfa_Rms_Dap( .Rab[Rab$g_Rfa], key ); ! Make RFA to suit remote !m605
    END;
[Rab$k_Key]:                        ! Key access
    BEGIN
    ctlmenu[Dap$v_Ctl_Key]=1;           ! We will send the key

    SELECT .Fab[Fab$v_Org] OF
    SET
    [Fab$k_Rel]:                        ! Relative file
        dtp = Xab$k_Bn4;                ! 
    [Fab$k_Idx]:                        ! Indexed file
        BEGIN
        LOCAL thiskdb: REF $Rms_Kdb;

        thiskdb=.Fst[Fst$a_Kdb];
        
        dtp=0;

        WHILE .thiskdb NEQ 0			! 620
        DO
           IF (.thiskdb[kdb$h_Reference] EQL .Rab[Rab$b_Krf])
           THEN EXITLOOP ( dtp = .thiskdb[kdb$v_datatype] )
           ELSE thiskdb=.thiskdb[kdb$a_nxt];

        krf = .thiskdb[kdb$h_Reference];	! 620
        Ctlmenu[Dap$v_Ctl_Krf] = 1;		! 620

        END;


    TES;

    CASE .dtp FROM Xab$k_Stg TO Xab$k_Bn4 OF
    SET
    [Xab$k_In4, Xab$k_Bn4]:
        ! KBF is address of record number
        ! Get value of key from user section
        BEGIN                           ! Key is Record number or other integer
        LOCAL keyval;                   ! KBF is address of record number

        keyval=.( UAddr( .Rab[Rab$a_Kbf] ) ); ! get word from user sect   !m555
        key[0]=%BPVAL/8;
        INCR i FROM 1 TO %BPVAL/8
        DO (key[.i]=.keyval; keyval=.keyval^-8)
        END;

    [Xab$k_Stg, Xab$k_Ebc, Xab$k_Pac]:
        BEGIN                           ! Key is a string
        LOCAL Keyptr;
        Key[0]=.rab[Rab$b_Ksz];         ! KSZ is length of string
        Keyptr=.rab[Rab$a_Kbf];         ! Character pointer to key
        TGUPointer( Keyptr, .Fst[Fst$h_Bsz] ); ! Make byte pointer	!623
        INCR i FROM 1 TO .key[0]        ! Copy the string
        Do (Key[.i]=CH$RCHAR_A(Keyptr));!				!623
        END;

    [INRANGE, OUTRANGE]: SIGNAL( Rms$_Ons );      ! Not supported
    TES;
    END;
[OUTRANGE]: SIGNAL( Rms$_Rac );
TES;
    
$Dap_Move_Bits (Rab, Rab$v_, Rop, Dap$v_Rop_,
                Eof,Fdl,Uif,Hsh,Loa,Ulk,Tpt,
                Rah,Wbh,Kge,Kgt,Nlk,Rlk,Bio,
                Lim,Nxr);                ! Translate the RMS ROP to a DAP one

Rop_Size=Dap$Size_Bitvector(Rop,6,0);   ! Remember the size of this now

IF .rop_Size NEQ 0 THEN Ctlmenu[Dap$v_Ctl_Rop]=1; !Remember to send if needed

!HSH is reserved as of DAP 7.0
HSH_SIZE=0;

! Calculate the size of display bitvector now
Display_Size = Dap$Size_Bitvector (display,4,0);                          !m571

IF .display_Size NEQ 0 THEN Ctlmenu[Dap$v_Ctl_Display]=1; ! send if needed


Dd[Dap$h_Length]=(1                                     ! Length of CTLFUNC
                  +Dap$Size_Bitvector (Ctlmenu,4,0)     ! Length of menu
                  +.ctlmenu[Dap$v_Ctl_Rac]              ! Length of RAC
                  +(IF .ctlmenu[Dap$v_Ctl_Key]
                    THEN .key[0]+1 ELSE 0)              ! Length of KEY
                  +(.ctlmenu[Dap$v_Ctl_Krf])            ! Length of KRF = 1
                  +.rop_Size                            ! Length of ROP
                  +.hsh_Size                            ! Length of HSH
                  +.display_Size                        ! Length of DISPLAY
                 );

Dap$Put_Header (dd);                    ! Send the header

Dap$Put_Byte (dd, .Cfun);               !Function code

Dap$Put_Bitvector (dd, ctlmenu, 4);     !Send the menu

IF .ctlmenu[Dap$v_Ctl_Rac]              !RAC field
THEN Dap$Put_Byte (dd, .rac);           ! 

IF .ctlmenu[Dap$v_Ctl_Key]              !Key field
THEN DAP$Put_Variable_Counted (dd, CH$PTR(key,0,8) );

IF .ctlmenu[Dap$v_Ctl_Krf]
THEN Dap$Put_Byte (dd, .krf);           ! KRF field

IF .ctlmenu[Dap$v_Ctl_Rop]
THEN Dap$Put_Bitvector (dd, rop, 6);    ! ROP field

IF .ctlmenu[Dap$v_Ctl_Hsh]
THEN Dap$Put_Bitvector (dd, hsh, 5);    ! HSH field

IF .ctlmenu[Dap$v_Ctl_Display]
THEN Dap$Put_Bitvector (dd, display, 4);        ! DISPLAY field

END;	!Dap$Put_Control
GLOBAL ROUTINE Dap$Get_Status ( P_DD: REF $Dap_Descriptor )=
BEGIN
!++
! FUNCTIONAL DESCRIPTION:
!
!	Routine to process a STATUS message
!	Note that the message header must have already been eaten
!	Signals error condition & returns code
!
! FORMAL PARAMETERS:
!
!	P_DD: Addr of DAP descriptor
!
! IMPLICIT OUTPUTS:
!
!       Fst[Fst$v_Error] is set or cleared
!       Rab[Rab$g_Rfa] and Rst[Rst$g_Data_Rfa]
!         are filled in if an RFA is given in the message
!
! COMPLETION CODES:
!
!	System-dependent error code (but we SIGNAL first)
!
! SIDE EFFECTS:
!
!       SIGNALs error if the status message indicates one.
!
!--
BIND dd=.p_dd: $Dap_Descriptor;

LOCAL
        code;
OWN
	rfa: BYTE8VECTOR[9],
	recnum: BYTE8VECTOR[9],
	stv: BYTE8VECTOR[9];

! Clearv (rfa,recnum,stv);

code=DAP$Get_2byte (dd);                !Put maccode+miccode here

SELECT (.code AND Dap$m_Maccode) OF                                       !m577
SET
[Dap$k_Mac_Open]:
    Fst[Fst$v_File_Open] = 0; 

[Dap$k_Mac_Invalid,                     ! Protocol Errors do not leave us
 Dap$k_Mac_Sync]:                       ! with a useable access.
    Fst[Fst$v_File_Open]                ! Usually get this when we get an
    = .Fst[Fst$v_Access_Active]         ! error and try to skip to a
    = 0;                                ! possible next file.
TES;

IF .dd[Dap$h_Length] GTR 0              ! Get the RFA (up to 8 bytes) [20]
THEN
    BEGIN
    Dap$Get_Variable_Counted (dd, CH$PTR(rfa,0,8), 8);

    IF (.rfa[0] GTR 0)                  ! Return RFA to user if given   !m605
    AND (.Rab NEQ 0)                    ! Provided we have a place to put it
    THEN Rab[Rab$g_Rfa] = Rst[Rst$g_Data_Rfa] =Dap$Rfa_Dap_Rms( rfa );
    END;

IF .dd[Dap$h_Length] GTR 0              ! Get the RECNUM (up to 8 bytes) [20]
THEN Dap$Get_Variable_Counted (dd, CH$PTR(recnum,0,8), 8);                !m561

IF .dd[Dap$h_Length] GTR 0              ! Get the STV (up to 8 bytes) [20]
THEN Dap$Get_Variable_Counted (dd, CH$PTR(stv,0,8), 8);                   !m561

!
! If we were trying to bail out and remote complains
! we must not have had an active access to begin with
!
IF ( .Code EQL ( Dap$k_Mac_Sync + Dap$k_Access_Complete ) )               !a577
THEN Fst[Fst$v_File_Open] = Fst[Fst$v_Access_Active] = 0;                 !a577

!
! Ignore errors about CONTINUE or ACCESS COMPLETE
! if we were trying to bail out of an error
!
IF ( .Code EQL ( Dap$k_Mac_Invalid + Dap$k_Mic_Continue + %O'20' ) )
OR ( .Code EQL ( Dap$k_Mac_Sync + Dap$k_Access_Complete ) )               !m577
OR ( .Code EQL ( Dap$k_Mac_Sync + Dap$k_Continue ) )                      !m606
THEN IF .Fst[Fst$v_Error]                                                 !m577
     THEN RETURN .UsrStv;                    ! Propegate previous error code

UsrStv = .Code;                         ! Return maccode+micccode as STV  !m566
UsrSts = Dap$Error_Dap_Rms( .Code );    ! Make RMS code                   !m566

SELECTONE .UsrSts OF
SET
[Rms$k_Suc_Min TO Rms$k_Suc_Max]:
    Fst[Fst$v_Error]=0;                 ! Else clear error flag

[Rms$_Eof]:                             ! End-of-file is different
    SIGNAL( .UsrSts, .UsrStv );         ! Signal it

[Rms$k_Err_Min TO Rms$k_Err_Max]:       ! If we got an error
    BEGIN
    Fst[Fst$v_Error]=1;                 ! Set error flag
    SIGNAL( .UsrSts, .UsrStv )          ! Signal it
    END;
TES;

.Stv                                    ! Return DAP status code
END; !Dap$Get_Status
GLOBAL ROUTINE Dap$Get_Ack ( P_Dd: REF $Dap_Descriptor )=
BEGIN
!++
! FUNCTIONAL DESCRIPTION:
!
!	Routine to expect and process an ACK message,
!       or a STATUS message if we aren't lucky
!
! FORMAL PARAMETERS:
!
!	DD: Addr of DAP descriptor
!
! IMPLICIT INPUTS:
!
!	Input buffer & pipeline
!
! IMPLICIT OUTPUTS:
!
!	Fst[Fst$v_Error] is set if error, cleared if not
!
! COMPLETION CODES:
!
!       STS$K_NORMAL if we get an ACK,
!       error code otherwise
!
!--
BIND dd=.P_Dd: $Dap_Descriptor;

SELECT Dap$Get_Header (dd)
OF  SET
    [Dap$k_Ack]:     
                     BEGIN
                     Fst[Fst$v_Error]=0;        ! Not an error
                     STS$K_NORMAL
                     END;
    [Dap$k_Status]:  Dap$Get_Status (dd);
    [OTHERWISE]:     SIGNAL (Dap$_Sync, dd);
    TES
END;	!DAP$GET_ACK
GLOBAL ROUTINE Dap$Rfa_Rms_Dap( rfanum, pbv: REF Byte8Vector[8] ) : NOVALUE =
!+
! Make an RFA into an image field for DAP
! If it is negative, the sign bit was a flag to reformat it to
! a 6-byte VMS indexed file RFA:
!
! +-+------------------------+--------------------------------------------+
! |1|  record within bucket  |             bucket number                  |
! +-+------------------------+--------------------------------------------+
!  1           11                                24
!-
BEGIN                                                                 !a605v
IF .Rab[Rab$g_Rfa] GEQ 0
THEN
    BEGIN
    LOCAL keyval: INITIAL(.rfanum);

    pbv[0]=%BPVAL/8;                    ! Key is converted bucket number
    INCR i FROM 1 TO %BPVAL/8           ! 
    DO (pbv[.i]=.keyval; keyval=.keyval^-8);
    END
ELSE ! Special case for VMS 6-byte RFAs
    BEGIN
    pbv[0]=6;                           ! Length of field
    pbv[1]=.rfanum;                     ! Low-order 8 bits of VBN first
    pbv[2]=.rfanum<8,8>;                ! Next 8 bits of VBN
    pbv[3]=.rfanum<16,8>;               ! Next 8 bits of VBN
    pbv[4]=0;                           ! If we get a VBN over 24 bits, too bad
    pbv[5]=.rfanum<24,8>;               ! Number within record
    pbv[6]=.rfanum<32,3>;               ! Last 3 bits
    END;
END;

GLOBAL ROUTINE Dap$Rfa_Dap_Rms ( pbv: REF Byte8Vector ) =
BEGIN
LOCAL val: INITIAL(0);

IF .pbv[0] LSS 6
THEN
    INCR i FROM 1 TO .pbv[0]
    DO val = .val + ( .pbv[.i] ^ ( (.i-1) * 8 ) )
ELSE
    BEGIN
    val=.pbv[1];
    val<8,8>=.pbv[2];
    val<16,8>=.pbv[3];
    val<24,8>=.pbv[5];
    val<32,3>=.pbv[6];
    val<35,1>=1;   ! Flag for this kind of RFA
    END;
.val                                    ! Return as value
END;                                                                   !a605^

END ELUDOM