Add support for IPv4 and IPv6 network sockets via socket syntax
"inet:<port>" and "inet6:<port>" respectively.
For example, to listen and redirect serial device I/O to a host bound
IPv4 socket simply do:
$ tio /dev/ttyUSB0 --socket inet:4444
To connect do e.g.:
$ nc 127.0.0.1 4444
Likewise, for IPv6 do:
$ tio /dev/ttyUSB0 --socket inet6:4444
To connect do e.g.:
$ nc ::1 4444
If port is 0 or no port is provided default port 3333 is used.
If tio has a unix file socket open, a second tio instance of tio may
delete the socket file. This change fixes so that it will not be deleted
and tio will instead error and complain about conflicting socket file.
Rework the color option to support setting ANSI color code values
ranging from 0..255 or "none" for no color or "list" to print a list of
available ANSI colors codes.
Also, disables color when piping.
While in hex mode (ctrl-t h) you can output hexadecimal values.
E.g.: to send 0x0A you have to type 0A (always 2 characters).
Added option -x, --hex to start in hexadecimal mode.
Added option --newline-in-hex to interpret newline characters in hex mode.
This is disabled by default, because, in my opinion, hex stream is
fundamentally different from text, so a "new line" is meaningless in this
context.
Optional arguments, as parsed by the getopt_long mechanism, are
inherently inconsistent with how you define required arguments.
To avoid confusion we decide to avoid this inconsistency by replacing
optional options with additional options with required argmuments.
Default configuration file settings were not parsed in case a section
was matched. Now we make sure that the default (unnamed) settings are
always parsed.