Regression: Ctrl-C kills MC

[vda]

In MC built from current-ish git, Ctrl-C causes it to exit. This wasn't happening in 4.6.1 - Ctrl-C was ignored.

[angel_il]

i can't reproduce
C-c close mcedit but not mc

[slavazanko]

Can't reproduce too.

CTRL+C and CTRL+G is a hotkeys for exit from editor/viewer. In panels these hotkeys don't works. Please, keep more info for reproduce your testCase.

[vda]

It happens with mouse support disabled.

In other words: try Ctrl-C'ing MC which was started with "mc -d".

[angel_il]

i run mc -d
and i can't close mc by Ctrl-C

[vda]

I would be happy to retest it on today's git,
but it currently doesn't build, as I reported on the mailing list:

# ./autogen.sh && ./configure && make
...
...
view.o: In function `view_search_cmd':
/.1/usr/srcdevel/mc/fix/mc.t9/.obj/src/../../src/view.c:3328: undefined reference to `str_convert_to_input'
collect2: ld returned 1 exit status
make[3]: * [mc] Error 1
make[3]: Leaving directory `/.1/usr/srcdevel/mc/fix/mc.t9/.obj/src'
make[2]: * [all-recursive] Error 1
make[2]: Leaving directory `/.1/usr/srcdevel/mc/fix/mc.t9/.obj/src'
make[1]: * [all-recursive] Error 1
make[1]: Leaving directory `/.1/usr/srcdevel/mc/fix/mc.t9/.obj'
make: * [all] Error 2

On a few week old build, I definitely see that "normal" mc ignores Ctrl-C and "mc -d" dies on Ctrl-C. I see in strace that it simply gets SIGINT and apparently there is no handler installed:

gettimeofday({1247522706, 784591}, NULL) = 0
select(5, [4], NULL, NULL, NULL) = ? ERESTARTNOHAND (To be restarted)
--- SIGINT (Interrupt) @ 0 (0) ---
+++ killed by SIGINT +++

[angel_il]

Replying to vda:

I would be happy to retest it on today's git,
but it currently doesn't build, as I reported on the mailing list:

# ./autogen.sh && ./configure && make

$ git pull
$ git checkout -b 1397_master_broken origin/1397_master_broken
$ ./autogen.sh && ./configure && make

this branch fix build error. try in 1397_master_broken CTRL-C

[slavazanko]

Replying to vda:

I would be happy to retest it on today's git,
but it currently doesn't build, as I reported on the mailing list:

This bug now fixed: #1397. Sorry for the inconvenience.

[vda]

Thanks Slava, current git builds again, and also I see that whitespace highligting is now configurable. Wow.

Regarding this bug. It happens on a build configured with
--without-subshell, like this:

./autogen.sh && ./configure --without-subshell && make

And also you need to run "mc -d". Then Ctrl-C kills mc.

[andrew_b]

It seems this bug was introduced for a long time ago...

commit 66332a4fb1d3b9e7304a477eaa2dc8b5f9eb0e80
Author: Roland Illig <roland.illig@gmx.de>
Date:   Mon Aug 29 08:45:28 2005 +0000

        * slint.c: The handling of user interrupts has been moved to ...
        * tty.c: ... this newly created file, which contains a simple,
        not yet complete interface to the terminal library. It should be
        used instead of depending directly on ncurses or SLang features.
        * tty.h: Added the new function prototypes from tty.c and some
        legacy definitions.

[andrew_b]

Created branch 1404_ctrc_kills_mc. Parent branch: master.
changeset:3d4560bd5baca9b7ad3cc929ea803c2c2c88ab5b

This commit restores the SIGINT signal handling. But if mouse is disabled (mc runs with -d oprion), the Ctrl-C command is totally ignored.

[iNode]

yes, C-c fixed, but it's not one shell binding, C-z still work here (Should it be?)

[styx]

ok, my vote is here, as ticket about C-c. if C-z will be here too

[andrew_b]

Restored description.