[Libguestfs] [PATCH] fish: reset the console on ^Z RHBZ#1213844

Patch registers SIGTSTP hook where it sends reset terminal color control sequence using write and fsync. Handler is installed only if signal is not being ignored. Patch uses rl_free_line_state and rl_cleanup_after_signal to unhook readline from terminal, then it calls original TSTP handler using approach in URL below and again hooks readline using rl_reset_after_signal. Handling is based on code from: http://man7.org/tlpi/code/online/dist/pgsjc/handling_SIGTSTP.c.html This approach seems to mostly work. User is sometimes able to get readline into state when it doesn't correctly respond to newline. ^Z and subsequent fg helps there as reset command helps broken terminal. I haven't noticed this using previous approach copied from vi. If you know what is going on I'll be more than happy to fix it. Maros Maros Zatko (1): fish: reset the console on ^Z RHBZ#1213844 fish/fish.c | 76 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) -- 2.5.0