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302 lines
12 KiB
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<META NAME="Language" content='en'>
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<META name="author" lang="en" content="Michiel Broek">
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<META name="copyright" lang="en" content="Copyright Michiel Broek">
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<META name="description" lang="en" content="MBSE BBS Manual - mbcico">
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<META name="keywords" lang="en" content="MBSE BBS, MBSE, BBS, manual, fido, fidonet, gateway, tosser, mail, tic, mailer">
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<TITLE>MBSE BBS Programs - mbcico - The Fidonet mailer.</TITLE>
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<LINK rel=stylesheet HREF="../manual.css">
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</HEAD>
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<BODY>
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<BLOCKQUOTE>
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<!-- MBSEADVERT -->
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<div align="right"><h5>Last update 23-May-2011</h5></div>
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<div align="center"><H1>mbcico - The Fidonet mailer.</H1></div>
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This is work in progress....
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<P>
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<h3>Synopsis.</H3>
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<P>
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<code>-a<inetaddr> -l<ttydevice> <node> ...</code><br>
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<code>-n<phone> </code>forced phone number<br>
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<code>-l<ttydevice> </code>forced tty device<br>
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<code>-t<tcpmode> </code>telnet TCP/IP mode, must be one of ifc|itn|ibn, forces TCP/IP<br>
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<code>-a<inetaddr> </code>supply internet hostname if not in nodelist<br>
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<code> <node> </code>should be in domain form, e.g. f11.n22.z3<br>
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<code>-h </code>show this help message<br>
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<br>
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or: <code>mbcico tsync|yoohoo|**EMSI_INQC816|-t ibn|-t ifc|-t itn</code> (this is answer mode)
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<P> <P>
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<H3>Description.</H3>
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<P>
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<strong>mbcico</strong> stands for MBse "Internet - Fidonet Copy In /Copy Out",
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this is a FidoNet(r) compatible transport agent. It is based on <strong>
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ifcico</strong> written by Eugene G. Crosser, <crosser@average.org>,
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2:5020/230@FidoNet. I changed the name of the program to make the difference
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between <strong>ifcico</strong> and <strong>mbcico</strong>. Nowadays it is
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quite different then ifcico.
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<P>
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Currently it supports FTS-0001, YooHoo/2U2 and EMSI handshake protocols,
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Xmodem, Telink, Modem7, Hydra with zlib compression extension (FSP-xxxx),
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SEAlink with and without overdrive and crash recovery,
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Bark file and update requests, WaZoo protocols: DietIFNA,
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plain Zmodem (aka ZedZip, EMSI flag "ZMO") and ZedZap, WaZoo file and
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update requests (nodelist flag should be XA). WaZoo file and update requests
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do also work with FTS-0001 sessions, this is supported by several well known DOS
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mailers also.
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Password protected requests and update requests are implemented.
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<P>
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There is also a special protocol optimized to use over TCP/IP connections,
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contributed by Stanislav Voronyi <stas@uanet.kharkov.ua>, it is
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identified by EMSI proto code TCP (not registered) and nodelist flag IFC.
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The default port is 60179. A telnet variant is installed at port 60177, the
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nodelist flag is ITN:60177. The port number is needed because the default port
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in the nodelist is port 23.
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<P>
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There is also a <strong>Binkp/1.1</strong> implementation, this is a
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bi-directional TCP/IP protocol.
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This protocol is prefferred over the IFC protocol because it is
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more efficient. Nodelist flag is IBN, the default port is 24554, and the
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nodelist request flag is XX. This binkp implementation uses zlib packet
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compression opt PLZ (FSP-1032) to increase the transfer speed and to lower
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the network bandwith usage. There is also support for the stream compression
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modes GZ and BZ2 (compatible with binkd).
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<P>
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Since januari 2011 mbcico can use both IPv4 and IPv6 TCP/IP connections.
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<P>
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Outbound directory structure is BinkleyTerm compatible, with domains and
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point subdirectories (full 5d). There are separate "protected" and
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"unprotected" inbound directories for the incoming sessions with the nodes
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that are in your setup. Files received during outbound sessions are always
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stored in the "protected" inbound.
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<P>
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"Magic" file request processors are executable files placed in the "magic"
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directory. If a request is made for a file with matching name, the
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executable from the "magic" directory is run, and its stdout output is mailed
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to the requestor. Full requestor's address, in the form of "John Smith of
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1:234/56/7" is passed to the executable in the command line. An example of
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such file is on my system, the filename in the magic directory is <b>STATUS</b>.
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<pre>
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echo " Hello $1 $2,"
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echo ""
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echo " Status report for MBSE BBS Development"
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echo " --------------------------------------"
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echo ""
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echo "Date : `date`"
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echo "System: `uname -mrs`"
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echo "Uptime: `uptime`"
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echo ""
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echo "`df -T`"
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echo ""
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echo "`free`"
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echo ""
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echo "Gtx, Michiel Broek"
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</pre>
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If you file request STATUS from my system you will get something like:
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<pre>
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Hello John Doe,
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Status report for MBSE BBS Development
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--------------------------------------
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Date : Sat Nov 8 17:29:07 CET 2003
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System: Linux 2.4.20 i586
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Uptime: 17:29:07 up 88 days, 20:02, 1 user, load average: 0.00, 0.00, 0.00
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Filesystem Type 1k-blocks Used Available Use% Mounted on
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/dev/hda2 ext3 5921096 3405184 2210276 61% /
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/dev/hdb1 ext3 6198404 5133056 750476 88% /opt
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total used free shared buffers cached
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Mem: 94280 91360 2920 0 13152 46276
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-/+ buffers/cache: 31932 62348
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Swap: 136512 32380 104132
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Gtx, Michiel Broek
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</pre>
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Non-executable
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files in the magic directory contain the full names to magic filenames. The
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magic NODELIST can thus point to the full path and filename of your latest
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nodelist. These magic names are automatic maintained by the <strong>mbfido</strong>
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program when the magic name is set in the .tic file that you receive.
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<P>
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To run <strong>mbcico</strong> in master mode, you need to make dialout
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devices read/writeable for <strong>mbcico</strong>, and do the same for
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the directory where your uucp locks are created (usually /var/locks).
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<P> <P>
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<h3>Answer Mode.</h3>
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<P>
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To make <strong>mbcico</strong> work in answer mode, you need <strong>
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mgetty</strong> written by Gert Doering. <strong>mbcico</strong> must be
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started with one of the following parameters:
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<P><PRE>
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FTS-0001 call: "/opt/mbse/bin/mbcico tsync"
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FTS-0006 call: "/opt/mbse/bin/mbcico yoohoo"
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EMSI call: "/opt/mbse/bin/mbcico **EMSI_....."
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</PRE><P>
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In the latter case the received EMSI packet should be passed whitout trailing
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CR). To make this work <strong>mgetty</strong> must be compiled with the
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-DFIDO option. Other getty programs might work.
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<P>
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To answer TCP/IP calls the following lines should be added to /etc/inetd.conf:
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<P><PRE>
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binkd stream tcp nowait mbse /opt/mbse/bin/mbcico mbcico -t ibn
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fido stream tcp nowait mbse /opt/mbse/bin/mbcico mbcico -t ifc
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tfido stream tcp6 nowait mbse /opt/mbse/bin/mbcico mbcico -t itn
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</PRE><P>
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The tfido line is configured to answer on IPv4 and IPv6.
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If your system uses xinetd the file /etc/xinetd.d/mbsebbs could be:
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<P><PRE>
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#:MBSE BBS services are defined here.
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service binkp
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{
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socket_type = stream
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protocol = tcp
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wait = no
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user = mbse
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instances = 10
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server = /opt/mbse/bin/mbcico
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server_args = -t ibn
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}
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service tfido
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{
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socket_type = stream
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protocol = tcp
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wait = no
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user = mbse
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instances = 10
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server = /opt/mbse/bin/mbcico
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server_args = -t itn
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flags = IPv6
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}
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service fido
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{
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socket_type = stream
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protocol = tcp
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wait = no
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user = mbse
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instances = 10
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server = /opt/mbse/bin/mbcico
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server_args = -t ifc
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}
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</PRE><P>
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If you want to use IPv6, add the line flags = IPv6 to the protocol
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like in the example of tfido.
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In the file /etc/services the following lines must be present:
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<P><PRE>
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binkd 24554/tcp # mbcico IBN mode
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fido 60179/tcp # mbcico IFC mode
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tfido 60177/tcp # mbcico ITN mode
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</PRE>
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<P> <P>
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<h3>Calling Mode.</h3>
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<P>
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You never need to call nodes with <b>mbcico</b> by hand, <b>mbtask</b> will
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start <b>mbcico</b> with the right commandline.<BR>
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<B>Note:</B> you should not call nodes with mbcico directly, let
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<b>mbtask</b> do the calling.
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If you want to call a node make a <a href="mbout.html">poll</a> command.
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<P> <P>
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<h3>Environment.</H3>
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<P>
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In order to run the mbcico you need to set one global environment variable
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<strong>$MBSE_ROOT</strong>
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This variable must point to the root of the bbs directoy structure.
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<P> <P>
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<H3>Return Codes.</H3>
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<P>
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<pre>
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0 - No errors
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1..32 - OS errors, SIGHUP, SIGKILL, etc.
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100 - Commandline error.
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101 - Configuration error.
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103 - Disk full.
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108 - File transfer error.
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111 - Node not in nodelist.
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112 - Node may not be called (Hold, Down, not ZMH).
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113 - Could not make connection.
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114 - Cannot open tty port.
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115 - Node is locked.
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116 - No IP address.
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117 - Unknown session type.
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118 - Not Zone Mail Hour.
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119 - Modem error.
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120 - Not port available.
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121 - Session error.
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122 - EMSI session error.
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123 - FTSC session error.
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124 - Wazoo session error.
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125 - YooHoo session error.
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126 - Outbound scan error.
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127 - Cannot poll.
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</pre>
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These codes are also stored in status files for nodes, with the extension
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of ".sts". These are small datafiles containing three decimal numbers.
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<ol>
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<li>Time retry code, this is the next call attempt time. This is an unsigned
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long representing the number of seconds since the epoch. Before this time
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the node may not be called. This is set after a failed call, a random time
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in the near future is selected.
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<li>Retries, this is the number of consequtive call attempts made that returned
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"call failed" or other errors. This field is zeroed when the call succeeds and
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when a new "poll" is created. If the value is 30, the node won't be called
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anymore.
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<li>Code, this is the return code of the last attempt.
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</ol>
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<p> <p>
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<h3>Configuration.</H3>
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<P>
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The behaviour of mbcico can be configured with <strong>mbsetup</strong>,
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section 1.14 If something doesn't do what you want, set the debug on for
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that problem. This will produce huge logfiles, but also a lot of information.
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Important flags are Device IO, EMSI debug, File forward, Locking, Outboundscan
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and Session.
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<P> <P>
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<h3>Bugs.</H3>
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<P>
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Incoming calls from McMail mailers, McMail is quite hasty
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to establish an EMSI session, and times out in less than a second. So
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if your system is heavy loaded, or not too fast, McMail cannot connect
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with your system. This is a known problem with McMail 1.0 and older,
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later versions are ok.
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<P> <P>
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<H3>Authors.</H3>
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<P>
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<pre>
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Eugene G. Crosser <crosser@average.org> Orginal ifcico.
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Stanislav Voronyi <stas@uanet.kharkov.ua> TCP/IP code.
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Martin Junius Rewrite of opentcp().
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Omen Technology Inc Zmodem protocol.
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Arjen G. Lentz, Joaquim H. Homrighausen Hydra transfer protocol.
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Cristof Meerwald Implementation of Hydra in ifcico.
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P. Saratxaga Tty driver code, yoohoo extensions.
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Dima Maloff Binkp protocol.
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Michiel Broek Rewrite for MBSE BBS.
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</pre>
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<P>
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<A HREF="index.html"><IMG SRC="../images/larrow.png" ALT="Index" Border="0">Back to index</A>
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<A HREF="../index.html"><IMG SRC="../images/b_arrow.png" ALT="Main" Border="0">Back to Main index</A>
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</BLOCKQUOTE>
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