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Trailing-Edge - PDP-10 Archives - bb-r775c-bm_tops20_ks_upd_3 - sources/dir20.b36
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MODULE DIR20(
             IDENT='12',
             ENTRY(
                    RL$PARSE,               ! Parse a local filespec
                    RL$MERGE,               ! Merge local filespecs
                    RL$DIRECTORY,           ! Initiate directory search local 
                    RL$SEARCH,              ! Search (wildcard) local 
                    RL$RENAME,              ! Rename local file(s) 
                    RL$ERASE                ! Delete local file(s)
                  )
             )=
BEGIN
!  COPYRIGHT (C) DIGITAL EQUIPMENT CORPORATION 1981, 1985.
!  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:  DAP
!
! ABSTRACT:  Routines to transfer records or blocks of file data.
!
!
! ENVIRONMENT:  RMS-20, BLISSNET-20, XPORT-20, Non-Transportable code.
!
! AUTHOR:	Andrew Nourse, CREATION DATE:  14-Sep-82
!
! 12    - Don't trash JFN when no nam block is being merged in really
! 11    - Check RLF bit, not presence of an RLF, in RL$MERGE
! 10    - Make wildcard $RENAME work
! 07    - Set NAM$V_FNB_WILDCARD if any wildcard bit set in RL$MERGE
! 06    - First file on next filespec was not being processed correctly
! 05    - Use RMS BSZ instead of FDB BSZ if it is an RMS file
! 04    - Fix wildcard delete and rename
! 03    - Put in ENTRY points
! 02    - Supress device we get from JFN always if remote file
! 01	- Separate system-dependant functions of DIRECT into this module
!--
!
! INCLUDE FILES:
!

!LIBRARY 'BLI:XPORT';
 LIBRARY 'RMS';
 LIBRARY 'BLISSNET';
 LIBRARY 'CONDIT';
 LIBRARY 'DAP';
%BLISS36(
LIBRARY 'TWENTY';
! LIBRARY 'BLI:TENDEF';
! LIBRARY 'BLI:MONSYM';
)

!
! Table of Contents
!

FORWARD ROUTINE
RL$PARSE,               ! Parse a local filespec
RL$MERGE,               ! Merge local filespecs
RL$DIRECTORY,           ! Initiate directory search local 
RL$SEARCH,              ! Search (wildcard) local 
RL$RENAME,              ! Rename local file(s) 
RL$ERASE;               ! Delete local file(s)

!
! Feature Tests
!

COMPILETIME MULTIPLE_FILESPECS=1;

!
! Externals
!

EXTERNAL ROUTINE
    S$JFN_STR,
    MOVEAZ,
    DAP$MERGE,
    DAP$HANDLE,
    R$NULL,
    R$$MERGE;
%IF MULTIPLE_FILESPECS
%THEN EXTERNAL ROUTINE RL$NEXTFILESPEC %FI;


!
! System Services
!

LINKAGE JSYS1S=JSYS(REGISTER=1;REGISTER=1): SKIP(1);
LINKAGE JSYS2S=JSYS(REGISTER=1,REGISTER=2;REGISTER=1,REGISTER=2): SKIP(1);
LINKAGE JSYS3E=JSYS(REGISTER=1,REGISTER=2,REGISTER=3): SKIP(-1);

BIND ROUTINE GTFDB__=GTFDB_: JSYS3E;
BIND ROUTINE GNJFN__=GNJFN_: JSYS1S;                                   
BIND ROUTINE GTJFN__=GTJFN_: JSYS2S;
BIND ROUTINE RLJFN__=RLJFN_: JSYS1S;
BIND ROUTINE RNAMF__=RNAMF_: JSYS2S;

BUILTIN SCANN;

!
! MACROS:
!

MACRO CRLF=%CHAR(13,10) %;
MACRO LH=18,18 %;
MACRO RH= 0,18 %;

!
! EQUATED SYMBOLS:
!

LITERAL
       FILE_NAME_LENGTH=40;

LITERAL
       FILESPEC_FIELD_SIZE=40;     ! Length of filespec field in directory list

!
! OWN STORAGE:
!
GLOBAL ROUTINE RL$PARSE(FAB: REF $FAB_DECL, ERR)=
!++
! FUNCTIONAL DESCRIPTION:
!
!       Decompose a local filespec & merge in related filespec
!
! FORMAL PARAMETERS:
!
!       FAB: A FAB as defined by RMS
!       ERR: Address of error routine
!
! COMPLETION CODES:
!
!	Standard RMS completion codes
!
!--
    BEGIN
    RL$MERGE(FAB[$],
             MERGE$M_EXPANDED+MERGE$M_RLF+MERGE$M_POINT,
             .ERR)
    END;       ! RL$PARSE
GLOBAL ROUTINE RL$MERGE (FAB: REF $FAB_DECL, FLAGS: BITVECTOR, ERR) = 
!++
! FUNCTIONAL DESCRIPTION:
!
!       Merge the related file spec with the filespec
!       to get the resultant file spec
!
! FORMAL PARAMETERS:
!
!	FAB: Address of FAB, which may have NAM block attached
!       FLAGS: Merge bits, defined in RMSUSR
!
! COMPLETION CODES:
!
!	RMS codes
!
! SIDE EFFECTS:
!
!	GTJFN will have been done on the filespec
!       The JFN will be in FAB[FAB$H_JFN]
!
!--
    BEGIN
    MAP FAB: REF $FAB_DECL;
    BIND NAM=.FAB[FAB$A_NAM]: $NAM_DECL;
    BIND ROUTINE $$ERRRTN=.ERR: RMS_ERCAL;
    LOCAL DESC: $STR_DESCRIPTOR(CLASS=BOUNDED);
    LOCAL RESULT;
    LOCAL GJBLK: VECTOR[$GJATR-1];      ! GTJFN block
    LOCAL NEXT;                             ! Offset to next filespec
    LOCAL WILDJFN;                          ! Build indexable file handle here

    IF .FAB[FAB$V_FOP_OFP]
    THEN NEXT=0                             ! No multiple output filespecs
    ELSE NEXT=.NAM[NAM$H_WCC_NEXT];         ! Input multpile filespecs OK

    IF .FAB[FAB$V_FOP_CIF] THEN FLAGS[MERGE$V_CIF]=1; ! Set Create-if if in FAB
    IF .FAB[FAB$V_FOP_OFP] THEN FLAGS[MERGE$V_CREATE]=1; ! Set create if in FAB
    ![11] Do not automatically use related filespec if resultant

    CLEARV(GJBLK);
    GJBLK[$GJSRC]=$NULIO+($NULIO^18);

    IF .FLAGS[MERGE$V_CREATE]
    THEN GJBLK[$GJGEN]=GJ_OFG+GJ_IFG+GJ_FOU+GJ_XTN
    ELSE GJBLK[$GJGEN]=GJ_IFG+GJ_XTN;

    IF (.FAB[FAB$H_JFN] EQL 0)
    OR .FLAGS[MERGE$V_POINT]
    THEN
        BEGIN                 ! Get a JFN if we need one
        LOCAL BEGPTR;
        LOCAL ENDPTR;


        IF .FAB[FAB$V_REMOTE] THEN RETURN 0;    ! Never do this for remote file

        ! Point to next filespec
        BEGPTR=CH$PLUS(.FAB[FAB$A_FNA],.NEXT);

        IF GTJFN__(GJBLK,.BEGPTR; RESULT,ENDPTR)
        THEN
            BEGIN
            IF .FAB[FAB$H_JFN] EQL 0    ! If we need this JFN
            THEN
                BEGIN
                LOCAL MULTIPLE;
                MULTIPLE=.NAM[NAM$V_FNB_MULTIPLE];      ! Save this bit
                FAB[FAB$H_JFN]=.RESULT;     ! Save the JFN
                NAM[NAM$G_FNB]=.RESULT^-18; ! Save the flags
                NAM[NAM$V_FNB_MULTIPLE]=.MULTIPLE;  ! Keep set if it was before
                END
            ELSE RLJFN__(.RESULT<0,18>);   ! Don't need this JFN
            IF .FLAGS[MERGE$V_POINT]       ! Incr offset to next if requested
            THEN NAM[NAM$H_WCC_NEXT]=
                  .NAM[NAM$H_WCC_NEXT]+CH$DIFF(.ENDPTR,.BEGPTR)-1;

            SELECT SCANN(ENDPTR) OF     ! Check for multi-filespec delimiters
                SET
                [%C',', %C'+']: NAM[NAM$V_FNB_MULTIPLE]=1; ! Multiple filespecs
                TES;
            END
        ELSE
            BEGIN
            IF .FAB[FAB$H_JFN] EQL 0    ! If we need the JFN
            THEN                        ! Do not complain if 
                BEGIN                   ! just sizing filespec
                FAB[FAB$H_STS]=(SELECT .RESULT OF
                                SET
                                [GJFX24]: RMS$_FNF;
                                [GJFX35]: RMS$_PRV;
                                [OTHERWISE]: RMS$_CGJ;
                                TES);
                SIGNAL(.FAB[FAB$H_STS], FAB[FAB$H_STV]=.RESULT, FAB[$]);
                RETURN .FAB[FAB$H_STS]
                END;
            END;
        END;

    NAM[NAM$V_FNB_WILDCARD]=                    ![7] If any wildcard, set this
       (.NAM[NAM$G_FNB] AND NAM$M_FNB_WILDCARD_BITS) NEQ 0;

    WILDJFN=.FAB[FAB$H_JFN];

    IF .FLAGS[MERGE$V_EXPANDED]                 ! For expanded filespec
    OR .FLAGS[MERGE$V_DEFAULTS]                 ! or default setting
    THEN WILDJFN=.WILDJFN+(.NAM[NAM$G_FNB]^18); ! Make Indexable file handle

    ! Set up expanded string
    $STR_DESC_INIT(DESC=DESC, CLASS=BOUNDED,
                   STRING=(.NAM[NAM$H_ESS],.NAM[NAM$A_ESA]));
    NAM[NAM$H_ESL]=S$JFN_STR(.WILDJFN,DESC,0); 

    ! Fill in the blocks
    $STR_DESC_INIT(DESC=DESC, CLASS=BOUNDED,  ! Device
                   STRING=(FILE_NAME_LENGTH,CH$PTR(NAM[NAM$T_DEV])));
    S$JFN_STR(.WILDJFN,DESC,FLD($JSAOF,JS_DEV)+JS_PAF);

    $STR_DESC_INIT(DESC=DESC, CLASS=BOUNDED,  ! Directory
                   STRING=(FILE_NAME_LENGTH,CH$PTR(NAM[NAM$T_DIR])));
    S$JFN_STR(.WILDJFN,DESC,FLD($JSAOF,JS_DIR)+JS_PAF);

    $STR_DESC_INIT(DESC=DESC, CLASS=BOUNDED,  ! Name
                   STRING=(FILE_NAME_LENGTH,CH$PTR(NAM[NAM$T_NAM])));
    S$JFN_STR(.WILDJFN,DESC,FLD($JSAOF,JS_NAM)+JS_PAF);

    $STR_DESC_INIT(DESC=DESC, CLASS=BOUNDED,  ! Extension
                   STRING=(FILE_NAME_LENGTH,CH$PTR(NAM[NAM$T_EXT])));
    S$JFN_STR(.WILDJFN,DESC,FLD($JSAOF,JS_TYP)+JS_PAF);

    $STR_DESC_INIT(DESC=DESC, CLASS=BOUNDED,  ! Generation
                   STRING=(7,CH$PTR(NAM[NAM$T_VER])));
    S$JFN_STR(.WILDJFN,DESC,FLD($JSAOF,JS_GEN)+JS_PAF);

    IF .FLAGS[MERGE$V_DEFAULTS]         ! Getting defaults from JFN
    AND .FAB[FAB$V_REMOTE]              ! but the file is remote
    THEN
        BEGIN
        CH$WCHAR(0,CH$PTR(NAM[NAM$T_DVI])); ! [2] do not believe device
        CH$WCHAR(0,CH$PTR(NAM[NAM$T_VER])); ! Supress generation number
        RETURN FAB[FAB$H_STS]=RMS$_SUC  ! Get out
        END;

    R$$MERGE(NAM[$],.FLAGS);   ! Merge in related filespec

    IF .FLAGS[MERGE$V_RLF]        ![11] If we merged something
    AND (NAM NEQ .NAM[NAM$A_RLF]) ![12] different
    AND (.NAM[NAM$A_RLF] NEQ 0)   ![12]
    THEN                          ! Then we need to get a new
        BEGIN                     ! JFN
        LOCAL WINFLAG;
        RLJFN__(.FAB[FAB$H_JFN]);
        GJBLK[$GJJFN]=.FAB[FAB$H_JFN];  ! Get this JFN back
        GJBLK[$GJGEN]=.GJBLK[$GJGEN] OR FLD($GJERR,GJ_JFN);
        IF (WINFLAG=GTJFN__(GJBLK,.NAM[NAM$A_RSA];RESULT)) EQL 0
        THEN
            BEGIN
            IF .FLAGS[MERGE$V_CIF]    ! Try new file if CIF
            THEN
                BEGIN
                GJBLK[$GJGEN]=GJ_NEW+GJ_OFG+GJ_IFG+GJ_XTN+FLD($GJERR,GJ_JFN);
                WINFLAG=GTJFN__(GJBLK,.NAM[NAM$A_RSA];RESULT);
                END;

            IF .WINFLAG EQL 0         ! Still failed?
            THEN
                BEGIN
                FAB[FAB$H_JFN]=0;       ! Blew this JFN away
                FAB[FAB$H_STS]=(SELECT .RESULT OF
                                SET
                                [GJFX24]: RMS$_FNF;
                                [GJFX35]: RMS$_PRV;
                                [OTHERWISE]: RMS$_CGJ;
                                TES);
                SIGNAL(.FAB[FAB$H_STS],
                       FAB[FAB$H_STV]=.RESULT,
                       FAB[$]);
                RETURN .FAB[FAB$H_STS]
                END;
            END;
        END;

    FAB[FAB$H_STS]=RMS$_SUC             ! Win
    END;                                ! RL$MERGE
GLOBAL ROUTINE RL$DIRECTORY (FAB,ERR) =	! Get next file 

!++
! FUNCTIONAL DESCRIPTION:
!
!       'Open' a local directory for listing
!
! FORMAL PARAMETERS:
!
!       FAB: A FAB as defined by RMS -- FNA contains wildcard spec
!       ERR: Address of error routine
!
! COMPLETION CODES:
!
!	Standard RMS codes
!--

    BEGIN
    MAP FAB: REF $FAB_DECL;
    BIND ROUTINE $$ERRRTN=.ERR: RMS_ERCAL;

    BIND NAM=.FAB[FAB$A_NAM]: $NAM_DECL;   ! Name block
    LOCAL FABSAV: VOLATILE;
    LOCAL ERRSAV: VOLATILE;
    ENABLE DAP$HANDLE(FABSAV,ERRSAV);   ! Setup Condition handler

    ERRSAV=.ERR;
    FABSAV=.FAB;                   ! Handler will need this

    RL$MERGE(FAB[$],MERGE$M_EXPANDED+MERGE$M_RLF+MERGE$M_POINT,.ERR)

    END;			!End of RL$DIRECTORY
GLOBAL ROUTINE RL$SEARCH (FAB,ERR) =

!++
! FUNCTIONAL DESCRIPTION:
!
!       Get directory info for a local file
!
! FORMAL PARAMETERS:
!
!       FAB: A FAB as defined by RMS -- FNA contains wildcard spec
!       ERR: Address of error routine
!
! COMPLETION CODES:
!
!	Standard RMS status codes
!--

    BEGIN
    MAP FAB: REF $FAB_DECL;
    LOCAL DESC: $STR_DESCRIPTOR();
    BIND NAM=.FAB[FAB$A_NAM]: $NAM_DECL;
    BIND ROUTINE $$ERRRTN=.ERR: RMS_ERCAL;
    BIND TYP=.FAB[FAB$A_TYP]: $TYP_DECL;
    LOCAL CLASS;

    IF TYP NEQ 0                    ! If we have a datatype block,
    THEN CLASS=.TYP[TYP$H_CLASS]    ! get the datatype class from it
    ELSE CLASS=0;

    IF NAM EQL 0 THEN (FAB[FAB$H_STS]=RMS$_NAM;    ! Must have a NAM block
                       $$ERROR(GET,FAB[$]));       ! or can't do this

    ! Set up descriptor for expanded string
    $STR_DESC_INIT(DESC=DESC,STRING=(.NAM[NAM$H_RSS],.NAM[NAM$A_RSA]));


     IF (.NAM[NAM$H_WCC_COUNT] NEQ 0)     ! No GNJFN first time through
     THEN
         BEGIN                          ! 
         IF GNJFN__((.NAM[NAM$G_FNB]^18)+.FAB[FAB$H_JFN];NAM[NAM$Z_CHA]) EQL 0
         THEN
             BEGIN
             FAB[FAB$H_STS]=RMS$_NMF;  ! No more files
             %IF MULTIPLE_FILESPECS                 ! Scan another filespec:
                 %THEN                              !  User can supply 
                 IF RL$NEXTFILESPEC(FAB[$],.ERR) EQL 0  !  multiple filespecs,
                 THEN RETURN .FAB[FAB$H_STS]        ! 
                 %FI                                ! 
             END;                                   ! File1,file2,file3 
         END;

!
! Now get the information for the file
!

         BEGIN
         LOCAL FAC,
               FNA,
               JFN,
               RFM,
               MRS,
               FOP;
         FAC=.FAB[FAB$H_FAC];       ! Save FAC
         FOP=.FAB[FAB$H_FOP];       ! and FOP
         JFN=.FAB[FAB$H_JFN];       ! And JFN
         FNA=.FAB[FAB$A_FNA];       ! And file name pointer
         RFM=.FAB[FAB$Z_RFM];       ! And Record Format
         MRS=.FAB[FAB$H_MRS];       ! And max record size

         NAM[NAM$H_RSL]=S$JFN_STR(.FAB[FAB$H_JFN],DESC,0); ! Get name

         IF .FAB[FAB$V_FAC_BIO] EQL 0
         THEN
             BEGIN
             FAB[FAB$H_FAC]=FAB$M_FAC_NIL;      ! No access
             FAB[FAB$V_FOP_DRJ]=0;      ! Do not keep JFN
             FAB[FAB$H_JFN]=0;          ! do not use this JFN
             FAB[FAB$A_FNA]=.NAM[NAM$A_RSA];    ! Use resultant name

             $OPEN(FAB=FAB[$]);         ! Open file to get attrs
             IF .FAB[FAB$H_STS] EQL RMS$_SUC
             THEN  $CLOSE(FAB=FAB[$]);  ! Close it again

             FAB[FAB$H_FAC]=.FAC;   ! Restore these to what user gave us
             FAB[FAB$H_FOP]=.FOP;   ! 
             FAB[FAB$H_JFN]=.JFN;   !
             FAB[FAB$A_FNA]=.FNA;   ! 
             END;

         ! Get the length from the monitor, RMS won't do that for us
             BEGIN
             LOCAL FDBBUF: VECTOR[$FBLEN];
             LOCAL BSZ;

             GTFDB__(.FAB[FAB$H_JFN],$FBLEN^18,FDBBUF);
             FAB[FAB$G_ALQ]=.FDBBUF[$FBBYV] AND FB_PGC; ! # of pages

             ! Get byte size
             BSZ=.POINTR((FDBBUF[$FBBYV]),FB_BSZ); 
             IF (.BSZ NEQ 0)                            ! If nonzero
             AND (.FAB[FAB$Z_RFM] EQL FAB$K_RFM_STM)    ![5] and file is stream
             OR (.FAB[FAB$Z_BSZ] EQL 0)                 ![5] or RMS has 0
             THEN FAB[FAB$Z_BSZ]=.BSZ                   ! use BSZ from FDB

             %IF %DECLARED(XABFHC)
             %THEN                      
                 BEGIN                  ! File Header Characteristics
                 XABFHC[XAB$G_EBK]=.FDBBUF[$FBSIZ]/((%BPUNIT/.BSZ)*512);
                 XABFHC[XAB$H_FFB]=.FDBBUF[$FBSIZ] MOD ((%BPUNIT/.BSZ)*512);
                 END;
             %FI;

             IF (.FDBBUF[$FBCTL] AND FB_DIR) NEQ 0      ! File is a directory?
             THEN FAB[FAB$Z_ORG]=FAB$K_ORG_DIRECTORY;   ! Set file organization

             IF .TYP[TYP$H_CLASS] EQL TYP$K_CLASS_MACY11  ! MACY11?
             THEN                                   
                 BEGIN
                 LOCAL SIZE;
                 SIZE=.FDBBUF[$FBSIZ];      ! Size in bytes according to FDB
                 IF .BSZ EQL 36 THEN SIZE=.SIZE*4;  ! Really 8-bit bytes
                 FAB[FAB$Z_RFM]=.RFM;
                 FAB[FAB$H_MRS]=.MRS;
                 IF .RFM EQL FAB$K_RFM_FIX
                 THEN FAB[FAB$G_MRN]=.SIZE/.FAB[FAB$H_MRS];
                 END;
             END;
         END;


    NAM[NAM$H_WCC_COUNT]=.NAM[NAM$H_WCC_COUNT]+1; ! Incr wildcard count

    IF .FAB[FAB$H_STS] EQL RMS$_SUC
    THEN RL$MERGE(FAB[$],MERGE$M_RLF,.ERR)      ! Get resultant filespec, etc.
    ELSE $$ERROR(OPEN,FAB[$]);                  ! Call error routine if error
    .FAB[FAB$H_STS]                             ! Return status
    END;			!End of RL$SEARCH
GLOBAL ROUTINE RL$RENAME (SFAB,DFAB,ERR) =	! Rename a file or files

!++
! FUNCTIONAL DESCRIPTION:
!
!       Rename a local file or files
!
! FORMAL PARAMETERS:
!
!       SFAB: A FAB as defined by RMS
!       DFAB: A FAB as defined by RMS
!       ERR: Address of error routine
!
! COMPLETION CODES:
!
!	RMS-20 codes
!
! SIDE EFFECTS:
!
!	The JFN (if any) may have changed
!--

    BEGIN
    MAP SFAB: REF $FAB_DECL;
    MAP DFAB: REF $FAB_DECL;
    BIND SNAM=.SFAB[FAB$A_NAM]: $NAM_DECL;
    BIND DNAM=.DFAB[FAB$A_NAM]: $NAM_DECL;

    BIND ROUTINE $$ERRRTN=.ERR: RMS_ERCAL;

    !++
    ! Get JFN, fill in NAM block, etc.
    !--
    WHILE (SNAM[NAM$H_WCC_COUNT]=0;
           (RL$DIRECTORY(SFAB[$],R$NULL) EQL RMS$_SUC)
            AND (RL$SEARCH(SFAB[$],R$NULL) NEQ RMS$_NMF))
           ![10] Start over each time because rename breaks chain
    DO
        BEGIN
        LOCAL RESULT;
        LOCAL TJFN;                                     ![4]

        IF GTJFN__(GJ_SHT+GJ_IFG,.SNAM[NAM$A_RSA];TJFN) EQL 0  ![10] Wildcard
        THEN                                            ![4] GTJFN failed
            BEGIN                                       ![4]
            SFAB[FAB$H_STS]=RMS$_CGJ;                   ![4]
            SFAB[FAB$H_STV]=.TJFN;                      ![4]
            $$ERROR(OPEN,SFAB[$]);                      ![4]
            END                                         ![4]
        ELSE
            BEGIN
            IF (.SFAB[FAB$Z_ORG] NEQ FAB$K_ORG_DIRECTORY)
            THEN
                BEGIN
                ! Get resultant new name
                RL$MERGE(DFAB[$],MERGE$M_RLF+MERGE$M_CREATE,.ERR);

                IF RNAMF__(.TJFN<RH>,.DFAB[FAB$H_JFN];RESULT) ![10] Rename it
                THEN
                    BEGIN
                    RLJFN__(.DFAB[FAB$H_JFN]);  ! Release JFN for new name
                    DFAB[FAB$H_JFN]=0;          ! Get old JFNs out of blocks
                    SFAB[FAB$H_STS]=DFAB[FAB$H_STS]=RMS$_SUC;    ! Win
                    END
                ELSE
                    BEGIN
                    SFAB[FAB$H_STS]=DFAB[FAB$H_STS]=RMS$_COF; ! Can't open file
                    SFAB[FAB$H_STV]=DFAB[FAB$H_STV]=.RESULT;   ! System code
                    $$ERROR(OPEN,SFAB[$])
                    END
                END;
            END;
        END;

    IF .SFAB[FAB$H_STS] EQL RMS$_NMF     ! If we did all the files
    THEN SFAB[FAB$H_STS]=RMS$_SUC;       ! then that's normal

    IF .SFAB[FAB$V_FOP_DRJ] EQL 0        ! Get rid of jfn unless want to keep
    THEN
        BEGIN
        RLJFN__(.SFAB[FAB$H_JFN]);       ! Release JFN
        SFAB[FAB$H_JFN]=0;               ! and forget it
        END;

    .SFAB[FAB$H_STS]                     ! Return status
    END;                                 !End of RL$RENAME
GLOBAL ROUTINE RL$ERASE (SFAB,ERR) =	! Delete a file or files

!++
! FUNCTIONAL DESCRIPTION:
!
!       Delete a local file or files
!
! FORMAL PARAMETERS:
!
!       SFAB: A FAB as defined by RMS
!       ERR: Address of error routine
!
! COMPLETION CODES:
!
!	RMS-20 codes
!
! SIDE EFFECTS:
!
!--

    BEGIN
    MAP SFAB: REF $FAB_DECL;
    BIND ROUTINE $$ERRRTN=.ERR: RMS_ERCAL;      ! Error routine
    BIND SNAM=.SFAB[FAB$A_NAM]: $NAM_DECL;

    ! Caller can set this bit before the call to disable local files.
    IF .SFAB[FAB$V_REMOTE]       ! Must it be remote?
    THEN
        BEGIN
        SFAB[FAB$H_STS]=RMS$_SUP;
        $$ERROR(OPEN,SFAB[$]);   ! Yes. complain
        END;

    RL$DIRECTORY(SFAB[$],.ERR);        ! Get JFN, etc    

    WHILE (RL$SEARCH(SFAB[$],R$NULL) NEQ RMS$_NMF)       ! Find next file
    DO
        BEGIN
        LOCAL TFAB: $FAB_DECL;          ![4] Make temp FAB

        $FAB_INIT(FAB=TFAB, FNA=.SNAM[NAM$A_RSA]); ![4] init to resultant name

        IF .SFAB[FAB$Z_ORG] NEQ FAB$K_ORG_DIRECTORY
        THEN
            BEGIN
            $ERASE(FAB=TFAB[$]);            ![4] Erase it
            SFAB[FAB$H_STS]=.TFAB[FAB$H_STS]; ![4] Keep status

            IF .TFAB[FAB$H_STS] NEQ RMS$_SUC
            THEN
                BEGIN
                SFAB[FAB$H_STV]=.TFAB[FAB$H_STV];   ![4] Keep secondary status
                $$ERROR(ERASE,SFAB[$])      ![4] process error
                END;
            END;
        END;

    SFAB[FAB$H_JFN]=0;                   ! This JFN is bye-bye.

    IF .SFAB[FAB$H_STS] EQL RMS$_NMF     ! If we did all the files
    THEN SFAB[FAB$H_STS]=RMS$_SUC;       ! then that's normal

    .SFAB[FAB$H_STS]                     ! Return status
    END;                                 !End of RL$ERASE
GLOBAL BIND ROUTINE RMS$MERGE=RL$MERGE;
GLOBAL BIND ROUTINE RMS$DIRECTORY=RL$DIRECTORY;
GLOBAL BIND ROUTINE RMS$SEARCH=RL$SEARCH;
END
ELUDOM ! End of module