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NEWS
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=== tio v2.8 ===
Changes since tio v2.7:
* Rework resolve_config_file()
* Rework line_pulse_duration_option_parse()
Introduce proper sscanf() checks.
* Rework rs485_parse_config()
Introduce proper sscanf() checks.
* Clean up file descriptor name shadowing
* Add missing header guard
* Upgrade inih subproject
* Remove options --response-wait, --response-timeout
Remove options and rework input handling so it is possible to do the
same thing but via script which is much more flexible.
These options were always a bit of a hardcoded solution. With the new
script expect feature we can wait for any type of response.
For example, pipe command to serial device and wait for line response within 1 second:
$ echo "*IDN?" | tio /dev/ttyACM0 --script "expect('\r\n', 1000)" --mute
* Add lua exit(code)
* Add timeout feature to expect()
* Add lua expect(string)
Add simple expect functionality.
The expect(string) function will wait for input from the tty device and
only return when there is a string match. Regular expressions are
supported.
Example:
script = expect('password:'); send('my_password\n')
* Add lua send(string)
* Add lua modem_send(file,protocol)
* Fix xymodem error print outs
* Rework x/y-modem transfer command
Remove ctrl-t X optin and instead introduce submenu to ctrl-t x option
for picking which xmodem protocol to use.
* Update README
* Cleanup options
* Add independent input and output mode
Replaces -x, --hexadecimal option with --intput-mode and --output-mode
so it is possible to select hex or normal mode for both input and output
independently.
To obtain same behaviour as -x, --hexadecimal use the following
configuration:
input-mode = hex
output-mode = hex
* Fix file descriptor handling on MacOS
* Add tty line configuration script API
On some platforms calling high()/low() to switch line states result in
costly system calls whick makes it impossible to swith two or more tty
lines simultaneously.
To help solve this timing issue we introduce a tty line state
configuration API which can be used instead of using
high()/low().
Using config_low(line) and config_high(line) one can set up a new line
state configuration for multiple lines and then use config_apply() to
finally apply the configuration. This will result in only one system
call to instruct the serial port drive to switch all the configured line
states which should help ensure that the lines are switched
simultaneously.
Example:
script = config_high(DTR); config_low(RTS); config_apply()
* Add ONULBRK mapping flag
Add ONULBRK mapping to map nul (zero) to send break signal on output.
This is useful if one needs to e.g. send the break signal to the tty
device when connected via socket.
* Add --log-directory option
For specifying directory path in which to save automatically named log
files.
* Add Lua scripting feature
Add support for running Lua scripts that can manipulate the tty control
lines. Script is activated automatically on connect or manually via in
session key command.
The Lua scripting feature opens up for many posibilities in the future
such as adding expect like functionality to easily and programatically
interact with the connected device.
* Invert line states to reflect true electrical level
* Add support for disabling prefix key handling
To disable prefix key input handing simply set prefix-ctrl-key to
'none'.
Based on original patch from Sebastian Krahmer.
* Add meson man pages install option
Defaults to installing man pages.
HiFiPhile:
* Poll on serial port read instead of delay.
* Add Xmodem-CRC support.
* CYGWIN: Fix port auto connection.
Mingjie Shen:
* Check return values of sscanf()
Failing to check that a call to 'sscanf' actually writes to an output
variable can lead to unexpected behavior at reading time.
Jakob Haufe:
* Support NO_COLOR env variable as per no-color.org
* Fix troff warning
.eo/.ec sections seemingly need explicit empty lines using .sp
Otherwise, troff complains:
troff:<standard input>:535: warning: expected numeric expression, got '\'
troff:<standard input>:538: warning: expected numeric expression, got '\'
troff:<standard input>:541: warning: expected numeric expression, got '\'
Fredrik Svedberg:
* Add map FF to ESC-c on input
Added map of form feed to ESC-c on input for terminals that
do not clear screen on ^L but do on ESC-c.
Brian:
* Add CodeQL Workflow for Code Security Analysis
Sylvain LAFRASSE:
* Fix double call of tty_disconnect() on macOS/Darwin.
Changes since tio v2.6:
Paul Ruizendaal:
* Add xmodem and ymodem file send support
HiFiPhile:
* tty_stdin_input_thread(): write to pipe only if byte_count > 0.
* Ignore EINTR error.
* CYGWIN: Add support for "COM*" naming.
Wes Koerber:
* chore: reorder log-strip and log-append
reorder to maintain consistency with documentation
* chore: update readme, bash completion, man page
* fix: support --log-append in cli options
Changes since tio v2.5:
* Remove warning when using pattern option
* Add --log-append option
Add --log-append option which makes tio append to any existing log file.
This also changes the default behaviour of tio from appending to
overwriting any existing log file. Now you have to use this new option
to make tio append.
* Update man page
* Update README
* Fix line termination for response wait feature
The response wait feature waited for a line response, a string
terminated with either CR or NL. However, some devices may send a CR and
then their line content and then NL. This means tio will quit before
receiving and printing the line response. To solve this we simply ignore
the CR character and only consider lines terminated with a NL character.
This should work for all devices as lines are AFAIK always terminated
with either CRNL or a NL.
* Update tty device listing configuration
Cleanup and add FreeBSD tty device listing support.
Braden Young:
* Move map variables to tty to keep them all in one spot
* Configure socket mapping flags from tty parsing logic. Remove duplicate parsing logic in socket
* Support input mapping modes for sockets
Josh Soref:
* Various spelling fixes
Peter van Dijk:
* avoid "warning: unused parameter" on setspeed stub
* use right /dev/ path on Haiku
Bill Hass:
* Update README with details on snap confinement
Changes since tio v2.4:
* Update configuration file documentation
Rename .tiorc to .tioconfig, tiorc to config, etc.
* Add support for $HOME/.tioconfig
Replaces what used to be $HOME/.tiorc
* Fix double prefix key regression
Vyacheslav Patkov:
* Better error checking in config file, rename the file
Accept "true", "enable", "on", "yes", "1" as true values, their
counterparts as false ones. Check integer values for errors and range.
Warn about ignored (e.g. misspelled) options.
Check getenv() return value for NULL.
Rename "tiorc" to "config", as it's a static INI file, not an executable
"run commands".
Changes since tio v2.3:
* Add threaded input handling
To make tio more responsive to quit and I/O flush key command when main I/O
thread is blocked on output.
* Fix so that is it possible to quit tio in tio etc.
Fix regression so that it is possible to send the prefix key code to the
remote tio session without local tio session reacting to same key code
(quitting etc.).
* Add key command to toggle log on/off
Add key command 'ctrl-t f' which will toggle log on/off.
If no log filename has been specified via the 'log-filename' option then
tio will automatically generate a new log filename every time the log
feature is toggled on. Meaning, when toggled multiple times, multiple
log files will be generated.
However, if a log filename has been specified, tio will only write and
append to that same file.
Changes since tio v2.2:
* Add mute feature
This will make tio go fully silent and not print anything.
* Rename config variable 'tty' to 'device'
* Deprecate tty config keyword but keep it around for now
* Update show config
* Update example tiorc
Changes since tio v2.1:
* Add shell completion of sub-configuration names
Does not work with sub configuration names that contains one or more
white spaces.
* Beautify help
* Fix error message
* Simplify configfile implementation
Changes since tio v2.0:
* Fix output line delay
Apply output line delay on lines ending with \n.
On most systems lines ends with \n or \r\n.
* Do not print timestamps in hex mode
* Improve input mechanism in hex mode
Print the 2 character hex code that you input in hex mode but then
delete it before sending. This way it is easier to keep track of what
you are inputting. It basically mimics the ctrl-shift-u input mechanism
that is used to input unicode.
* Add support for sending prefix character to serial device
Do so by inputting prefix key twice, e.g. input ctrl-t ctrl-t to send
ctrl-t character to serial device.
* Clean up indentation
* Update example tiorc
Attila Veghelyi:
* Add bit reverse order feature
Changes since tio v1.47:
* Handle stale unix socket file
Delete existing unix socket file if it is tested to be stale, meaning no
one is listening on it.
* Add visual or audible alert support on connect/disconnect
The feature is detailed via the following option:
--alert none|bell|blink
Set alert action on connect/disconnect.
It will sound the bell once or blink once on successful connect.
Likewise it will sound the bell twice or blink twice on disconnect.
Default value is "none" for no alert.
* Add experimental RS-485 support
Many modern RS-485 serial devices such as the ones from FTDI already
operate in RS-485 mode by default and will work with tio out of the box.
However, there are some RS-232/485 devices which need to be switched
from e.g. RS-232 to RS-485 mode to operate accordingly on the physical
level.
This commit implements the switching mechanism and interface required to
enable RS-485 mode. It only works on Linux and with serial devices which
use device drivers that support the Linux RS-485 control interface.
The RS-485 feature is detailed via the following options:
--rs-485 Enable RS-485 mode
--rs-485-config <config> Set RS-485 configuration
Set the RS-485 configuration using the following key or key value pair
format in the configuration field:
RTS_ON_SEND=value Set logical level (0 or 1) for RTS pin when sending
RTS_AFTER_SEND=value Set logical level (0 or 1) for RTS pin after sending
RTS_DELAY_BEFORE_SEND=value Set RTS delay (ms) before sending
RTS_DELAY_AFTER_SEND=value Set RTS delay (ms) after sending
RX_DURING_TX Receive data even while sending data
If defining more than one key or key value pair, they must be comma
separated.
Example use:
$ tio /dev/ttyUSB0 --rs-485 --rs-r485-config=RTS_DELAY_AFTER_SEND=50,RX_DURING_TX
* Add line response feature
Add a simple line response feature to make it possible to send e.g. a
command string to your serial device and easily receive and parse a line
response.
This is a convenience feature for simple request/response interaction
based on lines. For more advanced interaction the socket feature should
be used instead.
The line response feature is detailed via the following options:
-r, --response-wait
Wait for line response then quit. A line is considered any string ending
with either CR or NL character. If no line is received tio will quit
after response timeout.
Any tio text is automatically muted when piping a string to tio while in
response mode to make it easy to parse the response.
--response-timeout <ms>
Set timeout [ms] of line response (default: 100).
Example:
Sending a string (SCPI command) to a test instrument (Korad PSU) and
print line response:
$ echo "*IDN?" | tio /dev/ttyACM0 --response-wait
KORAD KD3305P V4.2 SN:32477045
* Fix potential sscanf() overflow
* Only print version on '--version'
* Remove duplicate show config entry of DTR pulse duration
* Remove MacPorts instructions
Remove instructions for MacPorts because the port has no maintainer and
the port build definition is broken (missing dependency on libinih etc.).
It is recommended to use brew instead.
Peter Collingbourne:
* Ignore SIGPIPE signals
If the remote end of a socket is closed between when an input character
is received from the serial port and when it is written to the socket,
tio will receive a SIGPIPE signal when writing the character to the
socket, which will terminate the program. To prevent this, ignore the
signal, which will cause write(2) to return -EPIPE, causing tio to close
the socket.
Changes since tio v1.46:
* Enable log feature when using --log-filename
No reason to not assume that the user wants to enable log when the
--log-filename is used. This way uses can skip the use of --log to
enable log.
* Enable line buffering of log
Replace flushing/writing of log at every log write operation with line
buffering, meaning log will be written line by line to make it more I/O
friendly but still update frequently.
* Avoid invalid hex character messages when switching hex mode
* Force flushing of log writes
* Renamed tty_flush() to tty_sync()
* Fix sync output to serial port
Using fsync() on filedescriptors for serial ports can not be relied on.
Add use of tcdrain() to make sure data has been written by the serial
port before proceeding.
This fixes a problem with tio sometimes not writing piped input data to
the serial port before exiting which results in the pending writes being
cancelled / flushed.
* Clean up tty_flush()
* Force frequent sync on tty_flush()
* Update README
* Update example tiorc
* Quit from non-interactive mode using ctrl-c
When piping to tio it will automatically enter "non-interactive" mode
which means it will not react to any input key sequences but simple read
the input stream and write it to the tty device.
This also means that ctrl-t q can not be used to quit and so tio would
hang forever when used in non-interactive mode.
This change allows to send the standard termination signal by pressing
ctrl-c on tio in non-interactive mode to make it quit.
* Make sure we flush output buffer to tty when piping to tio
* Do not return false read error when piping to tio
* Show error message when reading port settings fail
Victor Oliveira
* add macports install instructions
Changes since tio v1.45:
* Rework toggle and pulse feature to support all lines
Replace existing toggle and pulse key commands with the following
generalized key commands which allows to toggle or pulse all serial port
lines:
ctrl-t g Toggle serial port line
ctrl-t p Pulse serial port line
When used, user will be asked which serial line to toggle or pulse.
Also introduce --line-pulse-duration option for setting specific pulse
duration in milliseconds for each serial line using a key value pair
format. Each key represents a serial line. The following keys are
available: DTR, RTS, CTS, DSR, DCD, RI.
Example:
$ tio /dev/ttyUSB0 --line-pulse-duration DTR=200,RTS=300,RI=50
Likewise, the pulse duration can also be set via configuration file
using the line-pulse-duration variable:
line-pulse-duration = DTR=200,RTS=300,RI=50
* Upgrade inih wrap to r56
* Optimization
* Add example configuration file
Ralph Siemsen:
* Fix relative timestamps
Fix the display of relative timestamps. The hack of subtracting 3600
only works if you happen to be in a time zone that is one hour away from
UTC. When subtracting two time values, the result is an absolute
quantity (interval). These should be displayed as-is; without local time
zone nor daylight saving correction. Hence gmtime() instead of
localtime().
Changes since tio v1.44:
* Introduce bold color option
Introduce "bold" color option which only apply bold color formatting to
existing system color.
Also make "bold" the default color option.
Fixes all white issue with black on white tio text.
* Update README
* Change 'ctrl-t T' to 'ctrl-t t' for timestamp toggle
* Add support for remapping prefix key
Make it possible to remap the prefix key (default: ctrl-t) by setting
the prefix-ctrl-key variable in the configuration file.
Allowed values are in the range a..z.
Example, to set the prefix key to ctrl-a simply do:
prefix-ctrl-key = a
* Add plaintext man page
Rui Chen:
* docs: add homebrew installation note
* fix macOS build
* fix compilation error
Changes since tio v1.43:
* Simplify arbitrary baudrate code
* Cleanup error printing routines
Clean up so that only the following error related printing functions are
used: tio_error_printf(), tio_error_printf_silent(),
tio_warning_printf().
A session mode switch is introduced for error printing so that it will
print error messages with better formatting depending on in or out of
session.
* Update README
* Clean up man page
* Add support for space parity
* Rename EOL delay to Output line delay
* Replace -U,--upcase with mapping flag OLTU
* Simplify tty_write()
Robert Snell:
* Additional commands: EOL delay, lower to upper translation, added mark parity
Added command line options:
-O, --eol-delay to have a separate delay for end of line
-U, --upper to enable translation of lower case alpha to upper case
Added ability to set mark parity.
Added ctrl-t U key sequence to allow enable/disable lower case alpha to
upper case during a session.
Updated Man page with command line options, ctrl-t sequences and
configuration file options.
Updated README.md, with above information.
Changes since tio v1.42:
* Add '24hour-delta' timestamp option
When enabled this option will timestamp new lines with the time elapsed
since the line before.
This is a very useful feature to identify which events takes the most
time.
* Improve description of socket option
* Rename ChangeLog to NEWS
* Update README
* Update man page
George Joseph:
* Add Pulse DTR command
MCUs like the ESP32 can be reset if the serial port DTR line is
pulsed for a short time. You could just type CTRL-t d CTRL-t d
but that's a little awkward since you have to lift your finger
off the CTRL key to type the Ds. Now you can just type CTRL-T D.
* Added new command "D" to pulse the DTR line. I.E. Toggle its
state twice with a configurable duration between toggles.
* Added new config/command line option "--dtr-pulse-duration"
to set the duration between the DTR state toggles. The default
is 100ms.
Changes since tio v1.41:
* Update man page
ZeroMemoryEx:
* Handle malloc failure
Sylvain LAFRASSE:
* Add missing 'string.h' include.
Changes since tio v1.40:
* Rename --hex-mode to --hexadecimal
* Enable buffered writing
Read block of bytes from input and process same block for output. This
will speed things up by reducing I/O overhead.
* Enable buffered reading
Read block of bytes from input and process byte by byte for output. This
will speed things up by reducing I/O overhead.
* Refactoring
* Cleanup stdout flushing
Flushing is not needed since we disabled buffering of stdout.
* Simplify stdout_configure() code
* Simplify stdin_configure() code
* Update man page
* Update README
Changes since tio v1.39:
* Add config support for log-strip
* Add config support for hex-mode
* Rename --hex to --hex-mode
* Fix completion for -e, --local-echo
* Ignore newlines in hex output
* Fix newline in warning_printf()
* Fix ansi_printf_raw() in no color mode
* Enter non-interactive mode when piping to tio
Add support for a non interactive mode which allows other application to
pipe data to tio which then forwards the data to the connected serial
device.
Non interactive means that tio does not react to interactive key commands
in the incoming stream. This allows users to pipe binary data directly
to the connected serial device.
Example use:
$ cat commands.txt | tio /dev/ttyUSB0
* Also strip backspace from log
To make log strip feature consistent so that we remove all unprintable
control characters and escape sequences.
* Socket code cleanup
* Cleanup man page
* Rename --log-filename to --log-file
Yin Fengwei:
* Allow strip escape sequence characters from log file
The log without escape key stripped is like:
^M[12:47:17] ACRN:\>
^M[12:47:17] ACRN:\>lasdfjklsdjf
^M
^M[12:47:18] Error: Invalid command.
^M[12:47:19] ACRN:\>
^M[12:47:26] ACRN:\>
^M[12:47:26] ACRN:\>sdafkljsdkaljfklsadjflksdjafjsda^H ^H^H...
^M
^M[12:47:31] Error: Invalid command.
After strip escape key, the log is like:
[12:49:18] ACRN:\>
[12:49:19] ACRN:\>
[12:49:19] ACRN:\>ls
[12:49:19] Error: Invalid command.
[12:49:19] ACRN:\>
[12:49:19] ACRN:\>dfaslhj
[12:49:24] Error: Invalid command.
Beside escape key, it also handle backspace key as well.
Changes since tio v1.38:
* Improve key command response for local echo and timestamp
* Fix invalid hex character error message
* Make sure only matched config section is parsed
* Add support for "disable" keyword in config file
* Unify error message formating
* Cleanup list devices code
* Fix command-line tty-device|config parsing
Allow user to add options on both sides of the provided config argument.
For example:
$ tio -b 9600 am64-evm -e
Before, tio only allowed adding arguments after the config argument.
Implemented as simple as possible by introducing two stage option parsing.
* Update bash completion
* Add support for IPv4 and IPv6 network sockets
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.
* Fix tio deleting unix socket file
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 color option
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.
* Remove print of hex mode status at startup
* Remove newline option in hex mode
* Fix configfile memory leaks
* Remove command-line option inconsistencies
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 arguments.
* Replace '1' with 'enable' in config files
* Convert errors to warnings
g0mb4:
* Extended hexadecimal mode.
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.
Changes since tio v1.37:
* Redirect error messages to stderr
* Improve help and man page
* Mention config file in --help
* Fix running without config file
* Fix config file error messages
* Redirect error messages to stderr
* Add repology packaging status
* Fix parsing of default settings
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.
* Append to existing log file (no truncation)
* Add socket info to show configuration
* Print socket info at startup
* Fix socket option parsing
Peter Collingbourne:
* Match user input against config section names if pattern matching was unsuccessful.
This allows for better config file ergonomics if the user has a diverse
set of serial devices as the name does not need to be specified in
the config file twice.
* Add support for external control via a Unix domain socket.
This feature allows an external program to inject output into and
listen to input from a serial port via a Unix domain socket (path
specified via the -S/--socket command line flag, or the socket
config file option) while tio is running. This is useful for ad-hoc
scripting of serial port interactions while still permitting manual
control. Since many serial devices (at least on Linux) get confused
when opened by multiple processes, and most commands do not know
how to correctly open a serial device, this allows a more convenient
usage model than directly writing to the device node from an external
program.
Any input from clients connected to the socket is sent on the serial
port as if entered at the terminal where tio is running (except that
ctrl-t sequences are not recognized), and any input from the serial
port is multiplexed to the terminal and all connected clients.
Sockets remain open while the serial port is disconnected, and writes
will block.
Example usage 1 (issue a command):
echo command | nc -UN /path/to/socket > /dev/null
Example usage 2 (use the expect command to script an interaction):