NAME

       gensio - Tool for doing gensio connections

SYNOPSIS

       gensiotool [options] io2

DESCRIPTION

       The gensiotool program allows connections to be made using gensios  It creates two gensios
       called io1 and io2.  io1 is by default the local terminal and io2 must be specified.

       By default, gensiotool make two normal gensios and  establishes  connections  to  each  of
       them.  Any data that comes in on one gensio is transmitted on the other.

       For a description of how to specify a gensio, see the gensio documentation.

OPTIONS

       -i|--input io1
              By default io1 is the local terminal ( /dev/tty ) for a tty stdin, or the program's
              stdin/stdout for a non-tty stdin.  This lets another gensio  be  specified  as  the
              device to hook to io2.

       -a|--accepter
              By  default  io2  makes  an  outgoing connection.  This modifies io2 to be a gensio
              accepter and waits for an incoming connection.  Once the connection comes  in,  the
              accepter is closed and operations proceeds as normal.

       --signature
              Serial  server  signature  reported to the remote end.  If an accepter is specified
              (currently only a telnet RFC2217 server) the signature given  is  used  instead  of
              "gensiotool".

       -d|--debug
              Generate debugging output.  Specifying more than once increases the output.

       -e|--escchar char
              Specify a character to use for the escape character.  Setting it to -1 disables the
              escape character.  This can either be a decimal or hexadeximal number or ^x to  set
              a control character.  By default it is ^\ if io1 is the default and stdin is a tty,
              or disabled otherwise.  See ESCAPES below for more details on the escape character.
              Only handled on io1.

       -p|--printacc
              If -a is specified, print out all the accept addresses chosen by the program.

       -n|--extra-threads <n>
              Spawn  <n>  extra  threads to handle gensio operations.  Useful for scalabiity with
              --server.

       --server
              When an accept happens, don't disable accept, but continue to  accept  connections,
              and won't close if all the connections go away..  If this is not specified, it shut
              down the accepter  when  a  connection  comes  in  and  will  terminate  when  that
              connection closes.

       --version
              Print the version number and exit.

       -h|--help
              Help output

ESCAPES

       If  the  escape  character  is  received  on io1, the character is not transferred and the
       program waits for another character.  If the other character is also the escape character,
       a  single  escape  character is sent.  If the other character is not recognized as a valid
       escape, it is ignore and not transferred.  Upper and lower case are equivalent.

       Escape characters are:

       q      Quit the program.

       b      Send a break to io2.  Ignored if io2 does not support break.

       d      Dump serial data for io2.  Ignored if io2 is not a serial gensio.

       s      Set the serial port (baud) rate for io2.  Ignored if io2 is not  a  serial  gensio.
              After this, the serial port speed must be typed, terminated by a new line.  Invalid
              speeds are ignore, use escchar-d to know if you set it right.

       n, o, e
              Set the parity on io2 to none, odd, or even.   Ignored  if  io2  is  not  a  serial
              gensio.

       5, 6, 7, 8
              Set  the  data  size  on io2 to the number of bits.  Ignored if io2 is not a serial
              gensio.

       1, 2   Set the number of stop bits to 1 or 2 on io2 bits.  Ignored if io2 is not a  serial
              gensio.

       x, r, f
              Sets flow control to xonxoff, rtscts, or none.

SEE ALSO

       gensio(5)

KNOWN PROBLEMS

       None.

AUTHOR

       Corey Minyard <minyard@acm.org>