We now send mouse events to widgets in reverse Z-order, as done in common GUIs.
This makes it easy to implement "invisible" menubars correctly.
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
Decompose mouse event translation function: move mouse event handling
to separate function. This decomposition can be used for low-level
processing of high-level mouse events.
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
* 3621_cpio_segfault:
mc.ext: add View action for initrd.
mc.ext: fix regular expression for initrd.
Ticket #3621: fix segfault when enter in some cpio archives.
On systems where 'mode_t' is smaller than 'int', doing 'va_arg (ap, mode_t)' is
wrong because of C's "default argument promotions". GCC 4 creates crashing code
in this case.
The "va_arg" page of Gnulib's manual describes the problem and a simple solution:
https://www.gnu.org/software/gnulib/manual/html_node/va_005farg.html
However, since that solution reportedly (see thread at next link) still causes
GCC to print warnings (for no good reason; perhaps this was fixed in newer
GCCs), we pick a solution that defines a PROMOTED_MODE_T at the configuration
stage:
https://lists.gnu.org/archive/html/bug-gnulib/2009-05/msg00231.html
(We take our 'mode_t.m4' from the most recent Gnulib source.)
(If any of the URLs above no longer works, simply search the web for the
mentioned words.)
When handling with copy/move commands inside of archive we can lead into buffer overflow
steps to roproduce:
create simple 7z archive
open it
rename single filename
hit buffer overflow
found by clang/AddressSanitizer
==17794==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x602000273593 at pc 0x00000045f2a9 bp 0x7ffc94aa8e20 sp 0x7ffc94aa85d0
READ of size 2 at 0x602000273593 thread T0
#0 0x45f2a8 in __interceptor_strchr.part.44 (/usr/bin/mc+0x45f2a8)
#1 0x70fb72 in extfs_find_entry_int /tmp/portage/app-misc/mc-9999/work/mc-9999/src/vfs/extfs/extfs.c:312:13
#2 0x70f562 in extfs_find_entry /tmp/portage/app-misc/mc-9999/work/mc-9999/src/vfs/extfs/extfs.c:331:11
#3 0x712131 in extfs_internal_stat /tmp/portage/app-misc/mc-9999/work/mc-9999/src/vfs/extfs/extfs.c:1117:13
#4 0x7f3de308ab59 in mc_stat /tmp/portage/app-misc/mc-9999/work/mc-9999/lib/vfs/interface.c:556:46
#5 0x538575 in file_mask_dialog /tmp/portage/app-misc/mc-9999/work/mc-9999/src/filemanager/filegui.c:1340:25
#6 0x6e0753 in panel_operate /tmp/portage/app-misc/mc-9999/work/mc-9999/src/filemanager/file.c:2718:13
#7 0x6bdabd in rename_cmd /tmp/portage/app-misc/mc-9999/work/mc-9999/src/filemanager/cmd.c:811:9
#8 0x551ef4 in midnight_execute_cmd /tmp/portage/app-misc/mc-9999/work/mc-9999/src/filemanager/midnight.c:1307:9
#9 0x7f3de30a49e7 in buttonbar_callback /tmp/portage/app-misc/mc-9999/work/mc-9999/lib/widget/buttonbar.c:172:42
#10 0x7f3de30b2305 in dlg_try_hotkey /tmp/portage/app-misc/mc-9999/work/mc-9999/lib/widget/dialog.c:464:23
#11 0x7f3de30b199a in dlg_key_event /tmp/portage/app-misc/mc-9999/work/mc-9999/lib/widget/dialog.c:509:19
#12 0x7f3de30b2ef9 in frontend_dlg_run /tmp/portage/app-misc/mc-9999/work/mc-9999/lib/widget/dialog.c:570:9
#13 0x7f3de30b2af5 in dlg_run /tmp/portage/app-misc/mc-9999/work/mc-9999/lib/widget/dialog.c:1267:5
#14 0x5507bb in do_nc /tmp/portage/app-misc/mc-9999/work/mc-9999/src/filemanager/midnight.c:1827:9
#15 0x50b874 in main /tmp/portage/app-misc/mc-9999/work/mc-9999/src/main.c:403:21
#16 0x7f3de1ec78fb in __libc_start_main (/lib64/libc.so.6+0x208fb)
#17 0x427f48 in _start (/usr/bin/mc+0x427f48)
Signed-off-by: Andreas Mohr <and@gmx.li>
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
* 3606_shell_segfault:
(mc_shell_recognize_path): clarify duplicate comments
Ticket #3606: fix segfault due to incorrect value of SHELL environment variable.
* 3566_msg_notify:
Clarify send of MSG_NOTIFY.
Split MSG_ACTION into MSG_ACTION and MSG_NOTIFY.
Ticket #3566: Split MSG_ACTION into MSG_ACTION and MSG_NOTIFY.
Start step: simplify buttonbar and menu handling.
We make WButtonBar send the command directly to the target widget. This
lets us simplify the MSG_ACTION case in dialog handlers. The menu handling
too is simplified here.
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
