[SailfishOS 1.1.2.15 (Yliaavanlampi)] BUG SSH breaks after running python scripts. [answered]

answered 2015-02-22 16:27:21 +0300

t-lo
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http://www.thilo-fromm.de...

updated 2015-02-22 16:28:05 +0300

It's your python code that does this. From the youtube video I assume that you're trying to run "Striker" (e.g. https://github.com/SkyeSweeney/Striker/). Looking at the striker code it's pretty straightforward why your terminal stops echoing - the code tells the terminal to do so.

We start with looking ar "StrikerMonitor.py", https://github.com/SkyeSweeney/Striker/blob/master/StrikerMonitor.py:

• the main entry point is in line 30, the main() function
• main() function will call linuxcrt.set_curses_term() in line 34

We're now in the file "linuxcrt.py", https://github.com/SkyeSweeney/Striker/blob/master/linuxcrt.py:

• in line 15-16, the file descriptor for standard input is acquired, and current terminal settings are read (into new_term)
• then, the "CANONICAL" and "ECHO" bits are removed (tilde ~ operator) from the terminal settings in new_term in line 20. ==> Removing the "ECHO" bit causes your problem.
• finally, the new settings are applied to the current terminal in set_curses_term() in line 28

You can test by just running this condensed python code, it causes the same behaviour:

>>> import sys, termios
>>> fd = sys.stdin.fileno()
>>> new_term = termios.tcgetattr(fd)
>>> new_term[3] = (new_term[3] & ~termios.ICANON & ~termios.ECHO)
>>> termios.tcsetattr(fd, termios.TCSAFLUSH, new_term)

However, I have no Idea why it should have worked before.