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page ,132
; SCCSID = @(#)tpipe.asm 1.1 85/05/14
; SCCSID = @(#)tpipe.asm 1.1 85/05/14
TITLE PART8 COMMAND Transient routines.
;/*
; * Microsoft Confidential
; * Copyright (C) Microsoft Corporation 1991
; * All Rights Reserved.
; */
;
; Revision History
; ================
;
; M025 SR 9/12/90 Removed calls to SetStdInOn,SetStdInOff
; SetStdOutOn & SetStdOutOff.
;
.xlist
.xcref
include comsw.asm
include dossym.inc
include syscall.inc
include pdb.inc
include comseg.asm
include comequ.asm
.list
.cref
DATARES SEGMENT PUBLIC BYTE ;AC000;
EXTRN ECHOFLAG:BYTE
EXTRN InitFlag:byte
EXTRN INPIPEPTR:WORD
EXTRN OUTPIPEPTR:WORD
EXTRN PIPE1:BYTE
;;; EXTRN PIPE1T:BYTE
EXTRN PIPE2:BYTE
;;; EXTRN PIPE2T:BYTE
EXTRN PIPEFILES:BYTE
EXTRN PIPEFLAG:BYTE
EXTRN PIPEPTR:WORD
EXTRN RESTDIR:BYTE
EXTRN SINGLECOM:WORD
DATARES ENDS
TRANDATA SEGMENT PUBLIC BYTE ;AC000;
EXTRN BADDAT_PTR:WORD
EXTRN BADTIM_PTR:WORD
EXTRN curdat_mo_day:word ;AN000;
EXTRN CURDAT_PTR:WORD
EXTRN curdat_yr:word ;AN000;
EXTRN curtim_hr_min:word ;AN000;
EXTRN CURTIM_PTR:WORD
EXTRN curtim_sec_hn:word ;AN000;
EXTRN eurdat_ptr:word
EXTRN japdat_ptr:word
EXTRN newdat_format:word ;AN000;
EXTRN NEWDAT_PTR:WORD
EXTRN NEWTIM_PTR:WORD
EXTRN parse_date:byte ;AN000;
EXTRN parse_time:byte ;AN000;
EXTRN PIPEEMES_PTR:WORD
EXTRN promtim_hr_min:word ;AN000;
EXTRN promtim_ptr:word ;AN000;
EXTRN promtim_sec_hn:word ;AN000;
EXTRN STRING_BUF_PTR:WORD ;AC000;
EXTRN SYNTMES_PTR:WORD
EXTRN usadat_ptr:word
extrn TempVarName:byte
TRANDATA ENDS
TRANSPACE SEGMENT PUBLIC BYTE ;AC000;
EXTRN COMBUF:BYTE
EXTRN date_day:byte ;AN000;
EXTRN date_month:byte ;AN000;
EXTRN date_year:word ;AN000;
EXTRN INTERNATVARS:BYTE
EXTRN RESSEG:WORD
EXTRN time_fraction:byte ;AN000;
EXTRN time_hour:byte ;AN000;
EXTRN time_minutes:byte ;AN000;
EXTRN time_seconds:byte ;AN000;
TRANSPACE ENDS
TRANCODE SEGMENT PUBLIC BYTE
ASSUME CS:TRANGROUP,DS:NOTHING,ES:NOTHING,SS:NOTHING
EXTRN CERROR:NEAR
EXTRN NOPIPEPROC:NEAR
EXTRN STD_PRINTF:NEAR
EXTRN TCOMMAND:NEAR
EXTRN TESTDOREIN:NEAR
EXTRN TESTDOREOUT:NEAR
EXTRN TESTKANJ:NEAR ;AN000;3/3/KK
EXTRN TSYSGETMSG:NEAR ;AN000;
extrn Find_Name_In_Environment:near
PUBLIC CTIME
PUBLIC DATE
PUBLIC DATINIT
PUBLIC PIPEDEL
PUBLIC PIPEERRSYN
PUBLIC PIPEPROC
PUBLIC PIPEPROCSTRT
PUBLIC PRINT_TIME
PUBLIC SETREST
PUBLIC SETREST1
PUBLIC SINGLETEST
SINGLETEST:
ASSUME DS:NOTHING
push ds
MOV DS,ResSeg
ASSUME DS:ResGroup
CMP [SINGLECOM],0
JZ TestDone
CMP [SINGLECOM],0EFFFH
TestDone:
pop ds
return
ASSUME DS:TRANGROUP
SETREST1:
MOV AL,1
SETREST:
PUSH DS
MOV DS,[RESSEG]
ASSUME DS:RESGROUP
MOV [RESTDIR],AL
POP DS
ASSUME DS:TRANGROUP
return
ASSUME DS:RESGROUP
;
; Note that we need to handle the same thing that RestDir handles: the
; requirement that we try only once to restore the user's environment after
; and INT 24 or the like. If the condition that causes the INT 24 does not
; disappear, we just give up.
;
PIPEDEL:
assume ds:nothing
push ds
PUSH DX
mov ds,ResSeg
assume ds:ResGroup
mov DX,OFFSET RESGROUP:PIPE1 ; Clean up in case ^C
MOV AH,UNLINK
INT 21h
MOV DX,OFFSET RESGROUP:PIPE2
MOV AH,UNLINK
INT 21h
POP DX
call PipeOff
mov PipeFiles,0
pop ds
return
PIPEERRSYN:
MOV DX,OFFSET TRANGROUP:SYNTMES_ptr
CALL PIPEDEL
PUSH CS
POP DS
JMP CERROR
PIPEERR:
pushf
invoke triageError
SaveReg <AX,DX> ; Save results from TriageError
MOV DX,OFFSET TRANGROUP:PIPEEMES_ptr
CALL PIPEDEL
PUSH CS
POP DS
invoke std_eprintf
RestoreReg <DX,AX> ; Restore results from TriageError
popf
cmp ax, 65
jnz tcommandj
JMP CERROR
tcommandj:
jmp tcommand
PIPEPROCSTRT:
ASSUME DS:TRANGROUP,ES:TRANGROUP
MOV DS,[RESSEG]
ASSUME DS:RESGROUP
INC [PIPEFILES] ; Flag that the pipe files exist
push es
push di
push ds
push si
push ds
push es
pop ds ;ds = TRANGROUP
mov si,offset TRANGROUP:TempVarName ;ds:si = "TEMP="
;
;Some hideous code in Find_Name_In_Environment. Expects ds = TRANGROUP and
;so the routine is not really general
;
call Find_Name_In_Environment ;es:di points at path
pop ds ;ds = DATARES again
jc no_temp_path
push ds
push es
pop ds
pop es ;swap ds and es
mov si,di ;ds:si points at path
call skip_white ;skip white space chars
;
;This copies the path into both buffers -- Pipe1 & Pipe2
;
call copy_pipe_path ;copy the pipe path
;
;Check if the TEMP path is valid
;
push es
pop ds ;ds = DATARES
mov dx,offset DATARES:Pipe1 ;ds:dx = path to look for
mov ax, (CHMOD shl 8) or 0
int 21h
jc no_temp_path
test cx,10h ;is it a directory?
jnz no_temp_path ;yes, continue (carry clear)
stc ;no, indicate fail
no_temp_path:
pop si
pop ds
pop di
pop es
jnc crt_temp ;path found, create tempfiles
;;;;
;;;;Invalid or no TEMP path, default to root of current drive
;;;;
;;; MOV AH,Get_Default_Drive ; Get current drive
;;; INT 21h
;;; ADD AL,capital_A
;;; MOV PIPE2,AL ; Make pipe files in root of def drv
;;; MOV Pipe1,AL
;;; mov al,':'
;;; mov ah,'\'
;;; mov word ptr Pipe1+1,ax
;;; mov word ptr Pipe2+1,ax ;store ':\'
;;;
;;; xor ah,ah ; nul terminate path names
;;; mov Pipe1+3,ah
;;; mov Pipe2+3,ah
;SR;
; We want to create temp files in the current directory rather than in the
;root of the drive. This is because the number of files that can be present
;in the root directory is fixed, whereas it is not so in subdirectories.
;
mov ah,'.'
mov Pipe1,ah
mov Pipe2,ah
xor ah,ah
mov Pipe1+1,ah
mov Pipe2+1,ah ;create files in current dir
crt_temp:
MOV DX,offset DATARES:Pipe1
XOR CX,CX
mov ah,CreateTempFile ; the CreateTemp call
INT 21h
JnC @f
jmp PIPEERR ; Couldn't create
@@:
MOV BX,AX
MOV AH,CLOSE ; Don't proliferate handles
INT 21h
MOV DX,OFFSET RESGROUP:PIPE2
mov ah,createTempFile ; the CreateTemp call
INT 21h
JnC @f
jmp PIPEERR
@@:
MOV BX,AX
MOV AH,CLOSE
INT 21h
CALL TESTDOREIN ; Set up a redirection if specified
MOV SI,[PIPEPTR]
CMP [SINGLECOM],-1
JNZ NOSINGP
MOV [SINGLECOM],0F000H ; Flag single command pipe
NOSINGP:
JMP SHORT FIRSTPIPE
PIPEPROC:
ASSUME DS:RESGROUP
AND [ECHOFLAG],0FEh ; force current echo to be off
MOV SI,[PIPEPTR]
LODSB
CMP AL,AltPipeChr ; Alternate pipe char?
JZ IsPipe1 ; Yes
CMP AL,vbar
jz IsPipe1
jmp PIPEEND ; Pipe done
IsPipe1:
MOV DX,[INPIPEPTR] ; Get the input file name
MOV AX,(OPEN SHL 8)
INT 21h
PIPEERRJ:
jnc no_pipeerr
JMP PIPEERR ; Lost the pipe file
no_pipeerr:
MOV BX,AX
MOV AL,0FFH
XCHG AL,[BX.PDB_JFN_Table]
MOV DS:[PDB_JFN_Table],AL ; Redirect
FIRSTPIPE:
MOV DI,OFFSET TRANGROUP:COMBUF + 2
XOR CX,CX
CMP BYTE PTR [SI],0DH ; '|<CR>'
JNZ PIPEOK1
PIPEERRSYNJ:
JMP PIPEERRSYN
PIPEOK1:
mov al,vbar
CMP BYTE PTR [SI],al ; '||'
JZ PIPEERRSYNJ
CMP BYTE PTR [SI],AltPipeChr ; '##' or '|#'?
JZ PipeErrSynJ ; Yes, Error
PIPECOMLP:
LODSB
STOSB
;;;; IFDEF DBCS 3/3/KK
CALL TESTKANJ
JZ NOTKANJ5
MOVSB
;
; Added following 2 commands to the fix pipe bug.
;
inc cx ;AN000; 3/3/KK
inc cx ;AN000; 3/3/KK
;
JMP PIPECOMLP
NOTKANJ5:
;;;; ENDIF ; 3/3/KK
CMP AL,0DH
JZ LASTPIPE
INC CX
CMP AL,AltPipeChr
JZ IsPipe2
CMP AL,vbar
JNZ PIPECOMLP
IsPipe2:
MOV BYTE PTR ES:[DI-1],0DH
DEC CX
MOV [COMBUF+1],CL
DEC SI
MOV [PIPEPTR],SI ; On to next pipe element
MOV DX,[OUTPIPEPTR]
PUSH CX
XOR CX,CX
MOV AX,(CREAT SHL 8)
INT 21h
POP CX
JC PIPEERRJ ; Lost the file
MOV BX,AX
MOV AL,0FFH
XCHG AL,[BX.PDB_JFN_Table]
MOV DS:[PDB_JFN_Table+1],AL
XCHG DX,[INPIPEPTR] ; Swap for next element of pipe
MOV [OUTPIPEPTR],DX
JMP SHORT PIPECOM
LASTPIPE:
MOV [COMBUF+1],CL
DEC SI
MOV [PIPEPTR],SI ; Point at the CR (anything not '|' will do)
CALL TESTDOREOUT ; Set up the redirection if specified
PIPECOM:
PUSH CS
POP DS
JMP NOPIPEPROC ; Process the pipe element
PIPEEND:
CALL PIPEDEL
CMP [SINGLECOM],0F000H
JNZ NOSINGP2
MOV [SINGLECOM],-1 ; Make it return
NOSINGP2:
JMP TCOMMAND
ASSUME DS:TRANGROUP,ES:TRANGROUP
; Date and time are set during initialization and use
; this routines since they need to do a long return
DATINIT PROC FAR
mov cs:[resseg],ds ; SetInitFlag needs resseg initialized
PUSH ES
PUSH DS ; Going to use the previous stack
MOV AX,CS ; Set up the appropriate segment registers
MOV ES,AX
MOV DS,AX
invoke TSYSLOADMSG ;AN000; preload messages
MOV DX,OFFSET TRANGROUP:INTERNATVARS;Set up internat vars
MOV AX,INTERNATIONAL SHL 8
INT 21H
MOV WORD PTR DS:[81H],13 ; Want to prompt for date during initialization
MOV [COMBUF],COMBUFLEN ; Init COMBUF
MOV WORD PTR [COMBUF+1],0D01H
CALL DATE
CALL CTIME
POP DS
POP ES
RET
DATINIT ENDP
; DATE - Gets and sets the time
break Date
; ****************************************************************
; *
; * ROUTINE: DATE - Set system date
; *
; * FUNCTION: If a date is specified, set the system date,
; * otherwise display the current system date and
; * prompt the user for a new date. If an invalid
; * date is specified, issue an error message and
; * prompt for a new date. If the user enters
; * nothing when prompted for a date, terminate.
; *
; * INPUT: command line at offset 81H
; *
; * OUTPUT: none
; *
; ****************************************************************
assume ds:trangroup,es:trangroup
DATE:
MOV SI,81H ; Accepting argument for date inline
mov di,offset trangroup:parse_date ;AN000; Get adderss of PARSE_DATE
xor cx,cx ;AN000; clear counter for positionals
xor dx,dx ;AN000;
invoke cmd_parse ;AC000; call parser
cmp ax,end_of_line ;AC000; are we at end of line?
JZ PRMTDAT ;AC000; yes - go ask for date
cmp ax,result_no_error ;AN000; did we have an error?
jne daterr ;AN000; yes - go issue message
JMP short COMDAT ;AC000; we have a date
PRMTDAT:
; Print "Current date is
invoke GetDate ;AN000; get date for output
xchg dh,dl ;AN000; switch month & day
mov CurDat_yr,cx ;AC000; put year into message control block
mov CurDat_mo_day,dx ;AC000; put month and day into message control block
mov dx,offset trangroup:CurDat_ptr ;AC000; set up message for output
invoke std_printf
;AD061; mov CurDat_yr,0 ;AC000; reset year, month and day
;AD061; mov CurDat_mo_day,0 ;AC000; pointers in control block
GET_NEW_DATE: ;AN000;
call getdat ;AC000; prompt user for date
cmp ax,end_of_line ;AC000; are we at end of line?
jz date_end ;AC000; yes - exit
cmp ax,result_no_error ;AN000; did we have an error?
jne daterr ;AN000; yes - go issue message
COMDAT:
mov cx,date_year ;AC000; get parts of date in
mov dh,date_month ;AC000; cx and dx for set
mov dl,date_day ;AC000; date function call.
push cx ;AC000; save date
push dx ;AC000;
mov cx,1 ;AC000; set 1 positional entered
xor dx,dx ;AN029;
invoke cmd_parse ;AN029; call parser
cmp al,end_of_line ;AN029; Are we at end of line?
pop dx ;AC000; retrieve date
pop cx ;AC000;
jnz daterr ;AC000; extra stuff on line - try again
MOV AH,SET_DATE ;yes - set date
INT 21h
OR AL,AL
JNZ DATERR
date_end:
ret
DATERR:
invoke crlf2 ;AN028; print out a blank line
MOV DX,OFFSET TRANGROUP:BADDAT_ptr
invoke std_printf
JMP GET_NEW_DATE ;AC000; get date again
; TIME gets and sets the time
break Time
; ****************************************************************
; *
; * ROUTINE: TIME - Set system time
; *
; * FUNCTION: If a time is specified, set the system time,
; * otherwise display the current system time and
; * prompt the user for a new time. If an invalid
; * time is specified, issue an error message and
; * prompt for a new time. If the user enters
; * nothing when prompted for a time, terminate.
; *
; * INPUT: command line at offset 81H
; *
; * OUTPUT: none
; *
; ****************************************************************
assume ds:trangroup,es:trangroup
CTIME:
MOV SI,81H ; Accepting argument for time inline
mov di,offset trangroup:parse_time ;AN000; Get adderss of PARSE_time
xor cx,cx ;AN000; clear counter for positionals
xor dx,dx ;AN000;
invoke cmd_parse ;AC000; call parser
cmp ax,end_of_line ;AC000; are we at end of line?
JZ PRMTTIM ;AC000; yes - prompt for time
cmp ax,result_no_error ;AN000; did we have an error?
jne timerr ;AN000; yes - go issue message
JMP short COMTIM ;AC000; we have a time
PRMTTIM:
;Printf "Current time is ... "
MOV AH,GET_TIME ;AC000; get the current time
INT 21h ;AC000; Get time in CX:DX
xchg ch,cl ;AN000; switch hours & minutes
xchg dh,dl ;AN000; switch seconds & hundredths
mov CurTim_hr_min,cx ;AC000; put hours and minutes into message subst block
mov CurTim_sec_hn,dx ;AC000; put seconds and hundredths into message subst block
mov dx,offset trangroup:CurTim_ptr ;AC000; set up message for output
invoke std_printf
;AD061; mov CurTim_hr_min,0 ;AC000; reset hour, minutes, seconds, and hundredths
;AD061; mov CurTim_sec_hn,0 ;AC000; pointers in control block
GET_NEW_TIME:
call gettim ;AC000;
cmp ax,end_of_line ;AC000; are we at end of line?
jz time_end ;AC000;
cmp ax,result_no_error ;AN000; did we have an error?
jne timerr ;AN000; yes - go issue message
COMTIM:
mov ch,time_hour ;AC000; get parts of time in
mov cl,time_minutes ;AC000; cx and dx for set
mov dh,time_seconds ;AC000; time function call
mov dl,time_fraction ;AC000;
push cx ;AC000; save time
push dx ;AC000;
mov cx,1 ;AC000; set 1 positional parm entered
xor dx,dx ;AN029;
invoke cmd_parse ;AN029; call parser
cmp al,end_of_line ;AN029; Are we at end of line?
pop dx ;AC000; retieve time
pop cx ;AC000;
jnz timerr ;AC000; extra stuff on line - try again
SAVTIM:
MOV AH,SET_TIME
INT 21h
OR AL,AL
JNZ TIMERR ;AC000; if an error occured, try again
TIME_END:
ret
TIMERR:
invoke crlf2 ;AN028; print out a blank line
MOV DX,OFFSET TRANGROUP:BADTIM_ptr
invoke std_printf ; Print error message
JMP GET_NEW_TIME ;AC000; Try again
;
; Set the special flag in the INIT flag to the value in CX.
;
SetInitFlag:
mov ds,[RESSEG]
assume ds:resgroup
and InitFlag,NOT initSpecial
or InitFlag,cL
push cs
pop ds
return
Public PipeOff
PipeOff:
ASSUME DS:NOTHING,ES:NOTHING
SaveReg <DS,AX>
MOV DS,ResSeg
ASSUME DS:RESGroup
XOR AL,AL
XCHG PipeFlag,AL
OR AL,AL
JZ PipeOffDone
SHR EchoFlag,1
PipeOffDone:
RestoreReg <AX,DS>
return
PRINT_TIME:
MOV AH,GET_TIME
INT 21h ; Get time in CX:DX
PUSH ES
PUSH CS
POP ES
xchg ch,cl ;AN000; switch hours & minutes
xchg dh,dl ;AN000; switch seconds & hundredths
mov promTim_hr_min,cx ;AC000; put hours and minutes into message subst block
mov promTim_sec_hn,dx ;AC000; put seconds and hundredths into message subst block
mov dx,offset trangroup:promTim_ptr ;AC000; set up message for output
invoke std_printf
;AD061; mov promTim_hr_min,0 ;AC000; reset hour, minutes, seconds, and hundredths
;AD061; mov promTim_sec_hn,0 ;AC000; pointers in control block
POP ES
return
; ****************************************************************
; *
; * ROUTINE: GETDAT - Prompt user for date
; *
; * FUNCTION: Gets the date format from the COUNTRY DEPENDENT
; * INFORMATION and issues the "Enter new date"
; * message with the proper date format. COMBUF
; * is reset to get a date from the command line.
; * The PARSE_DATE blocks are then reset and the
; * PARSE function call is issued.
; *
; * INPUT: NONE
; *
; * OUTPUT: COMBUF
; * PARSER RETURN CODES
; *
; ****************************************************************
GETDAT proc near ;AC000;
mov ax,(International SHL 8) ; Determine what format the date
mov dx,5ch ; should be entered in and
int 21h ; print a message describing it
mov si,dx
lodsw
mov dx,usadat_ptr ;AC000; get mm-dd-yy
dec ax
js printformat
mov dx,eurdat_ptr ;AC000; get dd-mm-yy
jz printformat
mov dx,japdat_ptr ;AC000; get yy-mm-dd
printformat:
mov ax,dx ;AN000; get message number of format
mov dh,util_msg_class ;AN000; this is a utility message
call Tsysgetmsg ;AN000; get the address of the message
mov newdat_format,si ;AN000; put the address in subst block
MOV DX,OFFSET TRANGROUP:NEWDAT_ptr ;AC000; get address of message to print
invoke std_printf
mov newdat_format,no_subst ;AN000; reset subst block
MOV AH,STD_CON_STRING_INPUT
MOV DX,OFFSET TRANGROUP:COMBUF
mov cx,initSpecial ; Set bit in InitFlag that indicates
call SetInitFlag ; prompting for date.
INT 21h ; Get input line
xor cx,cx ; Reset bit in InitFlag that indicates
call SetInitFlag ; prompting for date.
invoke CRLF2
MOV SI,OFFSET TRANGROUP:COMBUF+2
mov di,offset trangroup:parse_date ;AN000; Get adderss of PARSE_DATE
xor cx,cx ;AN000; clear counter for positionals
xor dx,dx ;AN000;
invoke cmd_parse ;AC000; call parser
ret
GETDAT endp ;AC000;
; ****************************************************************
; *
; * ROUTINE: GETTIME - Prompt user for time
; *
; * FUNCTION: Gets the time format from the COUNTRY DEPENDENT
; * INFORMATION and issues the "Enter new time"
; * message. COMBUF is reset to get a time from the
; * command line. The PARSE_TIME blocks are then
; * reset and the PARSE function call is issued.
; *
; * INPUT: NONE
; *
; * OUTPUT: COMBUF
; * PARSER RETURN CODES
; *
; ****************************************************************
GETTIM proc near ;AC000;
XOR CX,CX ; Initialize hours and minutes to zero
MOV DX,OFFSET TRANGROUP:NEWTIM_ptr
invoke std_printf
MOV AH,STD_CON_STRING_INPUT
MOV DX,OFFSET TRANGROUP:COMBUF
mov cx,initSpecial ; Set bit in InitFlag that indicates
call SetInitFlag ; prompting for time.
INT 21h ; Get input line
xor cx,cx ; Reset bit in InitFlag that indicates
call SetInitFlag ; prompting for time.
invoke CRLF2
MOV SI,OFFSET TRANGROUP:COMBUF+2
mov di,offset trangroup:parse_time ;AN000; Get adderss of PARSE_TIME
xor cx,cx ;AN000; clear counter for positionals
xor dx,dx ;AN000;
invoke cmd_parse ;AC000; call parser
ret
GETTIM endp ;AC000;
;
;Skip_white: Skips over the whitespace chars that could be present after
;the '=' sign in the environment variable before the actual path.
;
; ENTRY: ds:si = arguments of the environment variable
;
; EXIT: ds:si = start of the path
;
; REGISTERS AFFECTED: ax
;
Skip_white proc near
cld
skw_lp:
lodsb
cmp al,' ' ;blank char?
jz skw_lp ;yes, skip it
cmp al,09 ;tab char?
jz skw_lp ;yes, skip it
dec si ;point at first non-white
ret
Skip_white endp
;
;Copy_pipe_path: This routine copies the path from the TEMP environment
;variable into the path buffers Pipe1 & Pipe2.
;
; ENTRY: ds:si = path to be copied
; es = RESGROUP
;
; EXIT: Path copied into Pipe1 and Pipe2.
;
; REGISTERS AFFECTED: si, di, cx, ax
;
Copy_pipe_path proc near
mov cx,0ffffh
xor al,al
mov di,si
push es ;save es
push ds
pop es ;es:di = path to be copied
cld
push di
repnz scasb ;look for the null char
pop di
pop es ;es = RESGROUP again
not cx ;length including the null
mov di,offset DATARES:Pipe1
push di
push cx
rep movsb ;copy path into Pipe1
pop cx
pop di
push ds
push es
pop ds ;ds:si = Pipe1
mov si,di
mov di,offset DATARES:Pipe2 ;es:di = Pipe2
rep movsb ;copy path into Pipe2
pop ds
ret ;
Copy_pipe_path endp
TRANCODE ENDS
END