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UUcico
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1991-07-12
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NAME
UUCico
SYNOPSIS
UUCico -D[EVICE] device -U[NIT] unit -Getty -w -r1 -xn -Xn -xx -h0
-o -[s/S]system -e -s -7 -p # -pri -d0 -t<timeout> -T<timeout>
DESCRIPTION
UUCico is the basis for UUCP. It can be run either from a
GETTY when somebody logs into the Amiga, or it can be run
from DCRON or manually to originate connections.
Some options to UUCico are now outdated and should not be
used. Specifically, earlier distributions did not have a
GETTY and UUCICO had to deal with waiting for connections
itself.
Either way, the final result is a connection between your
machine and some remote machine. UUCICO will retrieve any
queued work on the remote machine and send any queued work on
your machine. These work files are located in UUCP:SPOOL.
The term 'work' refers to items queued by other programs,
such as PNEWS and MAIL. These programs create files in
UUCP:SPOOL that inform UUCICO what to do with them and where
to send them to. On the flip side, when UUCICO receives a
work file it will write it to UUCP:SPOOL then run UUXQT.
UUXQT scans received files and determines how to break them
up (for example, append them to the appropriate mail box or
news directory). The control files in UUCP:SPOOL contain a
line indicating the appropriate program required to unpack
the files. UUXQT reads this line and runs the proper
unpacker (RMAIL, RNEWS, or CUNBATCH).
LOCKING
UUCico locks the serial port in the same manner Getty does, but
doing the equivalent of the UUCP:C/LOCKSERIAL command before
openning it. Thus, uucico's will never bump into each other
on the port. Any terminal program you run should lock the
serial port as well. This is done by running the terminal
program via UUCP:C/LOCKSERIAL with the appropriate arguments,
see the manual pages for GETTY and LOCKSERIAL for more information
GENERAL OPTIONS
(*)'d Options are supplied automatically on Getty Initiated
connections
(*) -D devicename Default is serial.device (space is required)
(*) -U unitnumber Default is 0 (space is optional)
-xn Set log level for us and for remote system
-Xn Set log level but do not tell remote system
about it.
-xx Debug handshake to stdout (but not once connection
is established). Useful for debugging L.Sys
send-expect stuff.
-h0 Ignore Carrier Detect.
-b BATCH news before anything else
-7 Set 7WIRE mode for serial connections
(i.e. hardware handshaking)
-p #
-pri UUCico ups its priority by 1 during transfer,
then downs it by 1 to run uuxqt. (i.e. +1
during transer, -1 for uuxqt)
-d0 IGNORE DTR switch forces UUCico to use the
+++ sequence to disconnect instead of dropping
DTR. This is a workaround for a possible
bug in the serial device for those who
experience crashes when UUCico tries to
disconnect.
-n[size] Set protocol window size. If size is not
specified, a window size of 1 is forced. The
default (-n option not specified) it a
window size of 7.
Sometimes it is necessary to reduce the window
size to 3 or 4 when connecting to heavily
loaded UNIX systems.
-t<timeout> Set GIO protocol timeout before packet retry.
Default is 5. In many cases this can cause
long no-activity delays due to small glitches
when, in fact, the receiving host is not loaded
down. Setting the timeout to 1 generally fixes
this.
-T<timeout> Set timeout for send-expect strings, default
is 15 seconds.
-P<segsize> Set segment size, in powers of two where a
segment size of 2 == 64 bytes. The maximum
segment size is 9 (2048 bytes??).
This option should be used only by EXPERIENCED
UUCP users. Larger is not necessarily better
since all packets are fixed length.
GETTY INITIATED OPTIONS
(*) -Getty Tells UUCICO that it was started from a Getty.
MANUAL POLL OPTIONS
-ssystem Poll (call-up) the specified system
-Ssystem Same as -s but ignore time restrictions
(note, currently time restrictions are
ignored anyway)
-r1 Call all systems we have pending work for
-r1 -ssystem Call this specific system if we have pending
work.
-o Tells UUCICO to not search for a CONNECT
message when carrier is detected (hardwired
configuration)
OBSOLETE OPTIONS (WAIT MODE OPTIONS) DO NOT USE IF YOU CAN HELP IT
-w Tells UUCICO to wait for one or more
connections (depending on -e) AFTER having
previously polled one or more systems
(-r, -s, -S).
-e Tells UUCICO to loop forever waiting for
connections.
<nooptions> If UUCICO is run without either -Getty,
-s, or -r, it will wait for a single
connection.
TIMELOG FORMAT
UUcico automatically appends an entry to UUSPOOL:TimeLog in
the following format:
dd-mmm-yy mm:ss mm:ss in=nnnnn out=nnnnn <system_name>
The date, then two on-line times. The first is the connect time
from carrier detect, the second is connect time from send-expect
success. Use whichever one is appropriate for bill calculations.
Following that is the number of data bytes received (total of
received file sizes) and the number of data bytes sent (total of
transmitted file sizes). These numbers do not reflect additional
overhead used by the G protocol (messages, acks, packet overhead,
or retries).
EXAMPLE
-----
; Place a line similar to this in your startup-sequence!
; See GETTY manual
resident uucp:C/Getty
run <nil: >nil: Getty -A -B19200 -Mm
-----
; Manually poll system 'foo'
UUCico -sfoo
-----
; From DCRON (DCRON ENTRY)
40 1 * * * uucp:c/uucico -r1
FILES/REQUIRES
UUCP:
UUCP:c/*
UUCP:lib/*
UUCP:mail/
UUCP:spool/
UUCP:spool/LOGFILE
REFERENCES
man/L.Sys
man/Getty
man/DCron
man/Assigns