PDP-10 Archive: tcpip-sources/ftp1.mac from tops20_v7_0_tcpip_distribution

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;No TCPSYM
;#13 14Feb83 /Rcc
;   Fixes from ISI, PARC and BBNRCC versions
;#6-12 Were used in various local copies (without hanging VWHO!)
;#5 Fix problem with not recognizing quoted file names
;#4 Add RETAIN and NORETAIN commands
;#3 Fix to cause byte count conversion when byte size of write differs from
;   byte size of open & Fix to finesse around the vax bbn-tcp close code
;#2 Temporary fix to prevent copies of FTPSRT from hanging around
;   Add detach before logout
;FTP1.MAC.1 CLynn Based on old NCP version, with lots of changes
;NB: Versions with TCPF or TCPP not 1 are unsupported, untested, etc
;NB: May have to be modified at each site due to TCP version skew,
;    see TCPOLD for hints. TCPOLD==1 assumes new TCP on TOPS20 and
;    old TCP on TENEX.  Differences are CDB format and STAT JSYS/
;    monitor TCB format.

IFNDEF SERVER,<IFNDEF USER,<IF1 <
PRINTX ? Must define either USER or SERVER
PRINTX   The command to compile the FTP User Program is
PRINTX    @macro
PRINTX    *ftp=tty:,ftp1,ftp2u,tcpsim,ftp4
PRINTX    user==1
PRINTX    ^Z
PRINTX    [MCREP1 END OF PASS 1]
PRINTX    user==1
PRINTX    ^Z
PRINTX    *
PRINTX   The server is compiled by substituting
PRINTX    *ftpsrt=tty:,ftp1,ftp2s,tcpsim,ftp4
PRINTX   and
PRINTX    server==1
> ; End of IF1
	END		; Don't waste cycles
>> ; End of IFNDEFs

IFDEF  USER,<TITLE FTP - TCP-based File Transfer Protocol - User Program
DEFINE OURNAME <HRROI B,[ASCIZ / FTP User Process /]>	>
IFDEF SERVER<TITLE FTPSRT - TCP-based File Transfer Protocol - Server Program
DEFINE OURNAME <HRROI B,[ASCIZ / FTP Server Process /]>	>
	SUBTTL C Lynn - BBN - Version 25

	SEARCH MONSYM,MACSYM
	SALL
	.DIRECT FLBLST

VWHO==0		; Last edited by SWE
VMAJOR==5	; Major Version #
VEDIT==14	; Edit Number
IFE TCPP,<VMINOR==<"N"&37>>; Revision #
IFN TCPP,<VMINOR==<"T"&37>>; Revision #


	LOC	<.JBVER==137>
VERSIO:	<VWHO>B2+<VMAJOR>B11+<VMINOR>B17+VEDIT ; Versions for typeout
	RELOC
	TWOSEG			; The high seg contains code used after LOGIN
	RELOC 400000		; Create the high segment
HSBAS:
	LOC 2000		; Origin of code in low segment

REPEAT 0,<.DIRECTIVE XSRCVN SRCVNO> ; DEC MACRO doesn't support this

	SUBTTL	Configuration Definitions

DEFINE ND (X,Y)<
IFNDEF X,<X==Y>>

ND REL4,1	;0 - If not TOPS20 Release 4 or later
		;1 - If assembling for TOPS20 Release 4 or later

ND TCPF,1	;0 - Use NCP for connections
		;1 - Use TCP for connections
ND TCPP,1	;0 - Use NCP protocol over connections
		;1 - Use IEN-149 protocol over connections

IFN REL4,<	T20FDB==.FBLEN>		; FDB lengths
IFE REL4,<	T20FDB==30>		; 101B
		TNXFDB==25		; TENEX
MINFDB==TNXFDB				; Minimum acceptable FDB
MAXFDB==37+10				; Maximum FDB - extra for padding

PGSBSY=='FTP'		; Name of subsystem for SETSN JSYS
IFDEF SERVER,<PGNAME=='FTPSRT'>	; Name of this program for SETNM JSYS
IFDEF   USER,<PGNAME=='TCPFTP'>	; Name of this program for SETNM JSYS


ND PDLL,100	; Stack length
ND DWTIME,^D120	; Seconds to wait for data connection
ND DEBUG,0	; Debugging code assembly switch
ND LCMDIB,^D512	; Words to hold TELNET line. Make ridiculously huge
		; because of NLS users' inability to type carriage return
ND LREPLY,^D100	; Words to hold reply. Shouldn't need nearly this much

ND IPCLOG,0	;0 - No ICPF logging (TENEX or TOPS20)
		;1 - Rudimentary logging via IPCF (TOPS20 only)
		; Not yet implemented

IFDEF USER,<			; User code

IFE TCPF,<
ND FTPICS,3	; Protocol ICP socket for FTP
ND FTPDSK,2	; FTP data socket number
ND USRSKN,100	; User socket number U before job-translation
> ; End of IFE TCPF

IFN TCPF,<
ND FTPICS,<^D21>
ND USRSKN,FTPICS ; Job-relative byte of User port number U
> ; End of IFN TCPF
> ; End of IFDEF USER


IFDEF SERVER,<			; Server code

ND ENABL,1	;0 - No special capabilities
		;1 - Enable all user capabilities

ND ANOP,1	;0 - ANONYMOUS users must supply correct password
		;1 - ANONYMOUS users do not need password (give USER)
		;Note: ANONYMOUS logins are not allowed unless
		;	the file "ANONYMOUS.USERFILE" exists,  see T__.AU

ND MLACTF,0	;0 - Site does not have separate account # for mail
		;1 - Site has separate account # for mail(see TXX.AC)

ND WATTIM,^D300	; Seconds to wait for user to type something

REPEAT 0,<	; Who knows what this is? As of 3/81 it conflicts
		; with HERMES's use of the flag word
MLSKT==^D232	; Foreign socket from which comes authenticated
		; mail if we trust the site (first of six sockets)
		; Causes B7 to be set in mail flag word
  > ; End of REPEAT 0

	SUBTTL	System Dependent String Constants
; TOPS20 - T20.xx, TENEX - TNX.xx, Same - TXX.xx

DEFINE PARMAC	(SYSTEM<SYSTEM>,SYS<SYS>,SUBSYS<SUBSYS>)<
				; (Use other names when debugging)
T20.DV:	ASCIZ /PS:/		; Device prefix
TNX.DV:	0

TXX.SY:	ASCIZ /SYSTEM/		; System

T20.NV:	ASCIZ /.-1;P770000/	; New version of a file
TNX.NV:	ASCIZ /;-1;P770000/

TXX.AN:	ASCIZ /ANONYMOUS/	; ANONYMOUS user name

; Filespec of file containing ANONYMOUS user password
; Note: If this file does not exist, ANONYMOUS logins are not allowed
T20.AU:	ASCIZ /SYSTEM:ANONYMOUS.USERFILE/
TNX.AU:	ASCIZ /<SYSTEM>ANONYMOUS.USERFILE/

T20.UE:	ASCIZ /SYS:UDDT.EXE/	; Filespec of file containing UDDT
TNX.US:	ASCIZ /<SUBSYS>UDDT.SAV/

T20.MB:	ASCIZ /MAIL.TXT.1/	; Mailbox file name
TNX.MB:	ASCIZ /MESSAGE.TXT;1/

TXX.MT:	ASCIZ /<SYSTEM>--MAIL--./	; Mail temp file name

TXX.M2:	ASCIZ /MAIL2/		; Primary directory for MAIL.LOG file

; Mail forwarder program is run in a fork starting at entry vector
;	offset 2 to lookup a given USERNAME.  AC1 on entry is 1
;	for local mode.
; Page 0 of the program is shared with BLTPAG which contains the
;	USERNAME string at 140.  The program halts with AC1
;	greater than zero if the mailee was found.  If found,
;	the correct USERNAME string begins at 140 and the HOST
;	name string begins at 150.  Mail for other hosts is
;	rejected.
T20.MF:	ASCIZ /SYS:MAILBOX.EXE/
TNX.MF:	ASCIZ /<SUBSYS>MAILBOX.SAV/

T20.UM:	ASCIZ /SYSTEM:[--UNSENT-MAIL--]./	; Unsent mail file
TNX.UM:	ASCIZ /<SYSTEM>[--UNSENT-MAIL--]./

TXX.MA:	ASCIZ /@/		; Unsent mail at sign

TXX.ML:	ASCIZ /MAIL.BLOG/	; MAIL.LOG file name

TXX.AC:	IFE MLACTF,<0>		; Mail default account number
	IFN MLACTF,<ASCIZ /;A/>	; Fill in account #

> ; End of DEFINE PARMAC
> ; End of IFDEF SERVER

	SUBTTL	AC Definitions

F=0		; Flags
A=1		; A-D are JSYSI args & temps
B=2
C=3
D=4
E=5		; AC used in call to mail routines

T1=6		; Temps
T2=7
P1=10		; Permanent over subr calls
P2=11
P3=12

BP=14		; Byte pointer for collecting, parsing strings
X=15		; Msg pointer in mail errors

P=17		; Stack

	SUBTTL	Constants

C.NUL==0	; NUL character
C.CC==3		; Control-C
C.BELL==7	; Bell
C.BS==10	; Backspace (character delete)
C.TAB==11	; Tab
C.LF==12	; Line Feed
C.FF==14	; Form Feed
C.CR==15	; Carriage Return
C.ESC==33	; Escape
C.SPACE==" "	; Space

C.COMNT==";"	; Starts comment lines to server
C.QUOTE=="V"&37	; Quote character in file names, etc
C.TTYE=="Z"&37	; End of file for TTY:
C.HRLD=="*"	; The herald for typein
C.SRVH=="<"	; "Less-Than" prefixes server output

; Editting Characters
; Backspace (^H) is also a character delete

T20CDL==177	; TOPS20 Character delete (Rubout)
T20CD2==C.BS	; TOPS20 Character delete (Backspace)
T20WDL=="W"&37	; TOPS20 Word delete (^W)
T20WD2==-1	; TOPS20 Word delete
T20LDL=="U"&37	; TOPS20 Line delete (^U)
T20LD2==-1	; TOPS20 Line delete
T20EOL==C.LF	; TOPS20 End-of-line

TNXCDL=="A"&37	; TENEX Character delete (^A)
TNXCD2==C.BS	; TENEX Character delete (Backspace)
TNXWDL=="W"&37	; TENEX Word delete (^W)
TNXWD2==-1	; TENEX Word delete
TNXLDL==177	; TENEX Line delete (Rubout)
TNXLD2=="X"&37	; TENEX Line delete (Control-X)
TNXEOL==37	; TENEX End-of-line

.TTNVT==4	; TENEX NVT terminal type
.TTIDL==11	; TOPS20 Ideal terminal type

DECRAD==12	; Decimal radix
OCTRAD==10	; Octal radix


..DEVA==FLD(.JSAOF,JS%DEV)	; Abbreviations for JFNS JSYS format
..DEVD==FLD(.JSSSD,JS%DEV)
..DIRA==FLD(.JSAOF,JS%DIR)
..DIRD==FLD(.JSSSD,JS%DIR)
..NAMA==FLD(.JSAOF,JS%NAM)
..TYPA==FLD(.JSAOF,JS%TYP)
..GENA==FLD(.JSAOF,JS%GEN)
..PROA==FLD(.JSAOF,JS%PRO)
..ACTA==FLD(.JSAOF,JS%ACT)

	SUBTTL	Macros

DEFINE MSG (XMSG)<		HRROI A,[ASCIZ \XMSG\]
				PSOUT	>

DEFINE VMSG (XMSG)<		PUSH P,A
				HRROI A,[ASCIZ \XMSG\]
				SKIPE F$VBOS		; Verbose typeout?
				  PSOUT
				POP P,A	>

DEFINE NOISE (XMSG)<		HRROI A,[ASCIZ \XMSG\]
				MOVE C,BREAKC
				CAIN C,C.ESC
				  PSOUT	>

; Macro to define keyword tables
; The default is by definition the first entry in each table

DEFINE KM (A,B,C)<ZZ==0
		XWD N'A'S,N'A'S		; Maybe COMD one day
IRP B,<	IF2 <IFNDEF A'$'B,<	IFB  <C>,<A'$'B==A'$>
				IFNB <C>,<A'$'B==C>
		>>
		XWD [ASCIZ \B\],A'$'B
	A'.'B==ZZ
	ZZ==ZZ+1
    > ; End of IRP
	N'A'S==ZZ
> ; End of DEFINE KM

DEFINE CLOSD (FILE,FLAGS)<	MOVEI A,FILE
		IFNB <FLAGS>,<	HRLI A,(FLAGS)>
		IFN TCPF,<	CALL CLOSED>
		IFE TCPF,<	CALL CLOSER>	> ; End of DEFINE CLOSD

DEFINE CLOSK (FILE,FLAGS)<	MOVEI A,FILE
		IFNB <FLAGS>,<	HRLI A,(FLAGS)>
				CALL CLOSEK	> ; End of DEFINE CLOSK

DEFINE CLOSR (FILE,FLAGS)<	MOVEI A,FILE
		IFNB <FLAGS>,<	HRLI A,(FLAGS)>
				CALL CLOSER	> ; End of DEFINE CLOSR

DEFINE ASCIZS (NF,NT,S,SF,ST,T)<XLIST
			IFE TCPP,<ASCIZ \NF'S'SF'T\>
			IFN TCPP,<ASCIZ \NT'S'ST'T\>
				LIST> ; End of DEFINE ASCIZS

MSKSTR DV$TYP,B,DV%TYP		; Device type from DVCHR JSYS
MSKSTR FB$BSZ,FDBBLK+.FBBYV,FB%BSZ ; FDB byte size, in FDBBLK
MSKSTR OF$BSZ,0,OF%BSZ		; File byte size for OPENF JSYS
MSKSTR PT$BSZ,0,77B11		; Byte size in POINT N,...

	SUBTTL	Opcode Definitions

IFE TCPF,<	DWTIME==^D120	; Seconds to wait for data connection

		OPDEF	$GTJFN	[GTJFN]
		OPDEF	$OPENF	[OPENF]
		OPDEF	$BIN	[BIN]
		OPDEF	$BOUT	[BOUT]
		OPDEF	$JFNS	[JFNS]
		OPDEF	$SIN	[SIN]
		OPDEF	$SOUT	[SOUT]
		OPDEF	$CLOSF	[CLOSF]
		OPDEF	$MTOPR	[MTOPR]
		OPDEF	$GTSTS	[GTSTS]
		OPDEF	$SFBSZ	[SFBSZ]
> ; End of IFE TCPF


IFN TCPF,<	TCPOLD==1	; TENEX has old CDB format

		TCPFB==1	; Using external buffers
		T.BFSZ==1200	; Bigger buffers, page worth
		CNTMOT==^D30	; Wait for SYN to arrive
		RXTMOT==^D300	; Retransmission timeout
		RXPARS==0	; Default retransmission parameters

		OPDEF	$GTJFN	[CALL TCPGJF]
		OPDEF	$OPENF	[CALL TCPOPN]
		OPDEF	$BIN	[CALL TCPBIN]
		OPDEF	$BOUT	[CALL TCPBOU]
		OPDEF	$SIN	[CALL TCPSIN]
		OPDEF	$SOUT	[CALL TCPSOU]
		OPDEF	$CLOSF	[CALL TCPCLO]
		OPDEF	$MTOPR	[CALL TCPMTP]
		OPDEF	$GTSTS	[CALL TCPGST]
		OPDEF	$JFNS	[CALL TCPJFS]
		OPDEF	$SFBSZ	[CALL TCPSBS]
		OPDEF	SEND	[JSYS 740]
		OPDEF	RECV	[JSYS 741]
		OPDEF	OPEN	[JSYS 742]
		OPDEF	CLOSE	[JSYS 743]
		OPDEF	STAT	[JSYS 745]
		OPDEF	CHANL	[JSYS 746]
		OPDEF	ABORT	[JSYS 747]

> ; End of IFN TCPF

	SUBTTL	Flags in AC F

; Following flags are in Global Storage for inter-fork communication

;F$SEND ; CD  Non-zero SEND, zero RECEIVE
;F$FLST ; CR  File status is being requested
;F$KPGN ; CD  May rename local file to retain generation number
;F$DOPN ; CD  Data connection open
;F$DTRQ ; C   Data xfer requested (inhibit pre-mature "no completion" msg)
;F$DTIP ; CR  Data xfer in progress (set when F$DTRQ cleared)
;F$WORK ; CD  Data is being received (TIMEOK incrs, Cleared by CWFORK loop)
;F$DTDR ; CR  Data xfer completion reply received (set when F$DTIP cleared)
;F$STAR ; CR  Input at command prompt
;F$TCLS ; CRD (Obsolete) Close TELNET & data connections
;F$VBOS ; CR  Verbose mode if non-zero


; Following used by data fork

F.CLSD==<400000,,0> ; D  Connection should be closed at end of data transfer
F.DSK==<0200000,,0> ; D  Local file is on DSK
F.ERR==<0100000,,0> ; D  Error in transfer
F.FDB==<0040000,,0> ; D  Processed FDB
F.IMG==<0020000,,0> ; D  CHANNEL mode bit shuffling required
F.NUL==<0010000,,0> ; D  Receive side going to NUL:
F.RLPT==<004000,,0> ;sD  On if receiving for spooled LPT
F.SEND==<002000,,0> ; D  Distinguish data sends (1) from receives (0) F$SEND
F.TYPX==<001000,,0> ; D  Transfer is PAGED

IFDEF USER,<
F.ABOR==<000400,,0> ;uC  F.ABOR,F.CGFG  00 - no abort, 01 - abort telnet
F.CGFG==<000200,,0> ;uC	 		10 - abort data, 11 - abort both
F.AMB==<0000100,,0> ;uC  Ambiguous command
F.APPE==<000040,,0> ;uC  Append (1) versus Send (0) command
F.HCOM==<000020,,0> ;uC  Command scanner will accept host name as word
F.HCM1==<000010,,0> ;uC  Word scanner tried host names
F.MATC==<000004,,0> ;uC  Match in command scanner
F.MLFL==<000002,,0> ;uC  Mail file flag in send routine
F.NOEC==<000001,,0> ;uC  Masking password

F.HELP==<0,,400000> ;uC  Given help message, subsequently just "error"
F.NOST==<0,,200000> ;uC  Statistics inhibited internally (MULTIPLE, etc)
F.NST1==<0,,100000> ;uC  User specified no statistics
F.CHOK==<0,,040000> ;uC  A good character seen in numeric input routine
F.HDX==<00,,020000> ;uC  Half duplex console for primary I/O
F.KJFN==<0,,010000> ;uC  Keep local JFN after CWFORK
F.LCUC==<0,,004000> ;uC  Lower case to upper in word collector
F.NTIC==<0,,002000> ;u   Counter for network interrupts vs timeout.
F.QUOC==<0,,001000> ; C  Set when C.QUOTE (^V, Control-V) last char in
F.SPTC==<0,,000400> ;uC  Space is a term, not data, in TSIN routine
F.STAT==<0,,000200> ; C  Always zero to omit Server Reply Codes
F.T1==<000,,000100> ;uC  Temp flag. Used in name parsing in MGET
F.TOPN==<0,,000040> ;uC  TELNET connection open
> ; End of IFDEF USER

IFDEF SERVER,<
F.ABOR==<000400,,0> ;sC  Received ABOR during file activity (not tested)
F.MLFL==<000200,,0> ;sC  Distinguish MAIL (0) from MLFL (1)
F.ANON==<000100,,0> ;sC  ANONYMOUS login (1)
F.APPE==<000040,,0> ;sC  APPEND (1) versus STOR (0)
F.CMDK==<000020,,0> ;sC  ERRRPL sets this. Causes GETCOM to hang up.
F.INML==<000010,,0> ;sC  In MAIL, no editing allowed
F.LOGI==<000004,,0> ;sC  Job is logged in (1)
F.LTL==<0000002,,0> ;sC  LINEIN sets this. Line was ridiculously long.
F.MFWD==<000001,,0> ;sC  Will forwarded mail (1) (cannot get JFN/mailbox busy)

F.NALO==<0,,400000> ;sC  Don't auto-logout this job. (Set by MAIL/MLFL)
F.NLST==<0,,200000> ;sC  Distinguish LIST/STAT (0) from NLST (1)
F.NUMA==<0,,100000> ;sC  Flag non-numeric string (1) in ACCOUNT command
F.NXM==	<0,,040000> ;sC  Mailbox found but "nonexistant" (default acct failed)
F.PASV==<0,,020000> ;sC  In passive mode
F.PDIR==<0,,010000> ;sC  Print directory name, in LIST and STAT
F.QUOC==<0,,004000> ; C  Set when C.QUOTE (^V, Control-V) last char in
F.STAT==<0,,000200> ;sC  STAT (1) versus LIST/NLST (0)
F.TOPN==<0,,000040> ; C  TELNET connection open
F.T1==<000,,000020> ;sC  Directory listing routine - need CR
F.T2==<000,,000010> ;sC  Directory listing routine - extension changed
;F.XSEM==<00000004> ;sC  Distinguish XSEM from XSEN
> ; End of IFDEF SERVER

	SUBTTL	Initialization

; Start of program. Initialize stuff.

GO:	RESET			; Start here, clean slate
	SETZ F,			; All flags off
	MOVE P,GPDP		; Initial stack pointer

IFDEF SERVER,<
; NCP Version:	Started up by FTSCTL.EXE system job
; TCP Version:	Started up by FTSCTT.EXE system job
; with	AC1/ Foreign Host #			AC3/ Foreign Port #
;	AC2/ Local Host # (that caller used)	AC4/ Local Port # (=21.)

IFN TCPF,<		; Connection info is passed from superior
	MOVEM A,FHSTN		; Foreign (User) Host
	MOVEM B,LHOSTN		; Local (Server) Host (as User addressed us)
	MOVEM C,FORNS		; Foreign (User) Port
	SUBI D,1		; Default Local (Server) Data port is one
	MOVEM D,FTPDAT		; less than control port
	MOVEM D,MYDATS		; Same as FTPDAT with TCPF
> ; End of IFN TCPF

	MOVX A,.FHSLF		; Get capabilities
	SETOB B,C
	EPCAP

> ; End of IFDEF SERVER

IFDEF USER,<
IFN TCPF,<
	GJINF			; Get job number
	JUMPLE C,[MSG <Cannot get job number from system >
		 JRST HALTGO]	; Fatal for now
	LSH C,^D8		; Into high byte
	ADDI C,USRSKN		; of port number
	MOVEM C,USRSKT		; Save it
> ; End of IFN TCPF
> ; End of IFDEF USER

	MOVX D,<T20PAR,,TENEX>	; Assume TOPS20
	MOVE A,['PTYPAR']	; Table to check for system type
	SYSGT
	CAMN A,['PTYPAR']	; If name still there, no such table
	  HRLI D,TNXPAR		; If no such table then TENEX
	BLT D,EOL		; Set system dependent variables

	MOVX A,<.HST20>
	SKIPE TENEX
	  MOVX A,<.HS10X>
	MOVEM A,LHSTYP		; Set our system type

	SUBTTL	Set Program & System Names

IFDEF SERVER,<			; In SERVER, CRJOB may not have set these
	MOVX A,PGSBSY		; Subsystem name
	MOVX B,PGNAME		; Program name
	SKIPN TENEX
	 SETSN			; TOPS20 sets both
	  JFCL
	MOVE A,B
	SKIPE TENEX
	 SETNM			; TENEX only has name
	  JFCL
> ;End IFDEF SERVER

; Get local host information

	MOVX A,.GTHSZ		; Get local host number from system
	GTHST
	 JRST [MSG <Cannot get local host number from system >
		JRST HALTGO]	; This is fatal for now
IFE TCPF,<MOVEM D,LHOSTN>	; Save host number
IFN TCPF,<			; User leaves it wild to get best address
IFDEF SERVER,<MOVE A,LHOSTN>>	; Server - name as addressed
IFDEF USER,<MOVEM B,HOSTNP>	; User - save neg. # host names,,0

	MOVE C,D		; And make a string out of it too
	HRROI B,LHSTNM
	MOVX A,.GTHNS
	GTHST			; Ask system for our name
	  JRST TRYCVH
	ANDI D,HS%STY		; Extract system type
	MOVEM D,LHSTYP		; Local host system type
	JRST SIGNON		; Don't need CVHST

TRYCVH:	MOVE B,C		; Host number from GTHST
	HRROI A,LHSTNM		; And make a string out of it too
	CVHST			; Ask system for our own name
	 JRST [	PUSH P,LHOSTN	; Use LHOSTN as a temp
		MOVEM B,LHOSTN	;  for numeric form
		MOVE A,[ASCII /Site /]
		MOVEM A,LHSTNM
		HRROI A,LHSTNM+1
		MOVX D,<POINT 8,LHOSTN,3>
		CALL HST4DA	; #.#.#.#
		POP P,LHOSTN
		JRST .+1]

	SUBTTL	Build Signon Message

SIGNON:	HRROI A,VERSTR		; Build version message here
	SETZ C,
	HRROI B,LHSTNM		; Sign on message
	SOUT
	OURNAME			; FTP User/Server Program
	SOUT

	LDB B,[POINT 9,VERSIO,11] ; Get major version
	MOVX C,OCTRAD		; Octal numbers
	SKIPE B			; Print if non-zero
	 NOUT
	  JFCL
	LDB B,[POINT 6,VERSIO,17] ; Get minor version
	JUMPE B,VERSI1		; Skip if 0
	SUBI B,1
	IDIVI B,^D26		; Make 2 letters
	JUMPE B,VERSI0		; Any first letter?
	HRRZI B,"A"-1(B)	; Yes, print
	BOUT
VERSI0:	HRRZI B,"A"(C)		; Print second letter
	BOUT
VERSI1:	HRRZ B,VERSIO		; Get edit number
	MOVX C,OCTRAD		; Octal numbers
	JUMPE B,VERSI2		; Skip if edit is 0
	MOVX B,"("		; Print open paren
	BOUT
	HRRZ B,VERSIO		; Get edit number again
	NOUT			; Print it
	  JFCL
	MOVX B,")"		; Print close paren
	BOUT
VERSI2:	LDB B,[POINT 3,VERSIO,2] ; Get group code
	JUMPE B,VERSI3		; Skip if zero
	MOVX B,"-"		; Print -
	BOUT
	LDB B,[POINT 3,VERSIO,2] ; Get group code
	NOUT
	  JFCL
VERSI3:
REPEAT 0,<		; Need directive to get this
	HRROI B,[ASCIZ / %/]
	SETZ C,
	SOUT
	MOVX B,SRCVNO
	MOVX C,DECRAD
	NOUT
	  JFCL
> ; End of REPEAT 0
	MOVX B,C.NUL		; End the string
	BOUT

	SUBTTL