(mc_search__g_regex_match_full_safe): fix out of bound read:
g_utf8_get_char_validated() expects a nul-terminated string.
Test case: search for "test" in
https://mirrors.edge.kernel.org/pub/linux/kernel/firmware/linux-firmware-20201218.tar.xz
Found by clang-11
==10142==ERROR: AddressSanitizer: SEGV on unknown address 0x60c001e00000 (pc 0x7ffb352111c0 bp 0x7ffcb5745150 sp 0x7ffcb57450e8 T0)
==10142==The signal is caused by a READ memory access.
#0 0x7ffb352111c0 in g_utf8_get_char_validated (/usr/lib64/libglib-2.0.so.0+0x811c0)
#1 0x851e6d in mc_search__g_regex_match_full_safe /tmp/portage/app-misc/mc-9999/work/mc-9999/lib/search/regex.c:297:22
#2 0x851824 in mc_search__regex_found_cond_one /tmp/portage/app-misc/mc-9999/work/mc-9999/lib/search/regex.c:328:10
#3 0x84b955 in mc_search__regex_found_cond /tmp/portage/app-misc/mc-9999/work/mc-9999/lib/search/regex.c:377:13
#4 0x84aa07 in mc_search__run_regex /tmp/portage/app-misc/mc-9999/work/mc-9999/lib/search/regex.c:955:17
#5 0x848969 in mc_search__run_normal /tmp/portage/app-misc/mc-9999/work/mc-9999/lib/search/normal.c:104:12
#6 0x77270c in mc_search_run /tmp/portage/app-misc/mc-9999/work/mc-9999/lib/search/search.c:308:15
#7 0x514fd9 in search_content /tmp/portage/app-misc/mc-9999/work/mc-9999/src/filemanager/find.c:1123:20
#8 0x511917 in do_search /tmp/portage/app-misc/mc-9999/work/mc-9999/src/filemanager/find.c:1405:26
#9 0x512028 in find_callback /tmp/portage/app-misc/mc-9999/work/mc-9999/src/filemanager/find.c:1597:9
#10 0x7e285f in send_message /tmp/portage/app-misc/mc-9999/work/mc-9999/lib/widget/../../lib/widget/widget-common.h:243:15
#11 0x7e36d8 in frontend_dlg_run /tmp/portage/app-misc/mc-9999/work/mc-9999/lib/widget/dialog.c:307:17
#12 0x7e34c5 in dlg_run /tmp/portage/app-misc/mc-9999/work/mc-9999/lib/widget/dialog.c:583:5
#13 0x510aa1 in run_process /tmp/portage/app-misc/mc-9999/work/mc-9999/src/filemanager/find.c:1755:11
#14 0x50c29e in do_find /tmp/portage/app-misc/mc-9999/work/mc-9999/src/filemanager/find.c:1789:20
#15 0x5098e7 in find_cmd /tmp/portage/app-misc/mc-9999/work/mc-9999/src/filemanager/find.c:1917:17
#16 0x504735 in midnight_execute_cmd /tmp/portage/app-misc/mc-9999/work/mc-9999/src/filemanager/filemanager.c:1251:9
#17 0x502e00 in midnight_callback /tmp/portage/app-misc/mc-9999/work/mc-9999/src/filemanager/filemanager.c:1604:21
#18 0x7eaa5c in send_message /tmp/portage/app-misc/mc-9999/work/mc-9999/lib/widget/../../lib/widget/widget-common.h:243:15
#19 0x7e7ae9 in group_handle_key /tmp/portage/app-misc/mc-9999/work/mc-9999/lib/widget/group.c:442:19
#20 0x7e6a4f in group_default_callback /tmp/portage/app-misc/mc-9999/work/mc-9999/lib/widget/group.c:567:16
#21 0x7e31bf in dlg_key_event /tmp/portage/app-misc/mc-9999/work/mc-9999/lib/widget/dialog.c:251:19
#22 0x7e2c12 in dlg_process_event /tmp/portage/app-misc/mc-9999/work/mc-9999/lib/widget/dialog.c:549:9
#23 0x7e3746 in frontend_dlg_run /tmp/portage/app-misc/mc-9999/work/mc-9999/lib/widget/dialog.c:320:9
#24 0x7e34c5 in dlg_run /tmp/portage/app-misc/mc-9999/work/mc-9999/lib/widget/dialog.c:583:5
#25 0x502866 in do_nc /tmp/portage/app-misc/mc-9999/work/mc-9999/src/filemanager/filemanager.c:1838:16
#26 0x4ceb15 in main /tmp/portage/app-misc/mc-9999/work/mc-9999/src/main.c:455:21
#27 0x7ffb34f16b49 in __libc_start_main (/lib64/libc.so.6+0x23b49)
#28 0x4230f9 in _start (/tmp/portage/app-misc/mc-9999/work/mc-9999/src/mc+0x4230f9)
Signed-off-by: Andreas Mohr <and@gmx.li>
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
Since mc_search__run_regex() pften is called in various iterative
procedures, don't reallocate regex buffer every time and use already
allocated one before.
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
In non-unicode locales, search for non-latin symbols in any acharset was
case sensitive only. This bug was introduced in
1a1496fc0d.
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
The "Whole words" feature of search only worked in Normal mode, not in
any of the other modes (Regex, Hex, Wildcard).
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
...in case of "Regular expression" and "Whole words".
The bug:
If there's no match, it's properly reported so.
If there's a match, however, the mcview's viewport is properly scrolled
vertically, but the search result is not highlighted. Plus, you can
press "Search again" once (or more times if there are multiple matches
in the line) and it won't progress to the next match.
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
Using the "?" pattern in the file selection dialog brought up with '+',
mc uses the file name length in bytes instead of characters.
Signed-off-by: Slava Zanko <slavazanko@gmail.com>
Problem:
Suppose you want to replace a substring in some file names with another,
so you do a File Rename operation with source pattern:
*OLDSTRING*
and target pattern:
\1NEWSTRING\2
If OLDSTRING occurs inside a filename, it is replaced correctly, but if
at the beginning or end of the filename, the corresponding zero-length
wildcard match is replaced by literal \1 or \2, respectively.
Expected
Wildcards that match a zero-length substring should be substituted with
an empty string.
Thanks boris<> for the original patch.
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
...for case where there is no MC_SEARCH_CB_INVALID or MC_SEARCH_CB_SKIP
return codes (for search from file manager), so we can copy line
at regex buffer all at once.
Thanks Sergey Naumov <sknaumov@gmail.com> for the original patch.
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
When mc is compiled with SEARCH_TYPE_PCRE (and without SEARCH_TYPE_GLIB,
e.g. on systems with old glib < 2.14) case (in)sensitive search works in opposite.
Signed-off-by: Slava Zanko <slavazanko@gmail.com>
brace '}' (which probably isn't 100% correct), this should be checked in tests
for replace_handle_esc_seq function, not process_escape_sequence - it is the
replace_handle_esq_seq who decides whether it is an escape sequence or not.
Also, \x{4344} is usually a code for wide character (UTF-8), and not for "CD".
So we can either ignore the higher bits, or generate wide character codes...
The second would be convenient, but would also introduce a hard-coded UTF-8 charset.
Signed-off-by: Slava Zanko <slavazanko@gmail.com>
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
Enables use of escape sequences inside regex replace strings,
Enables UTF-8 caseless search in PCRE.
Supported escape sequences: \DEC, \xHEX, \0OCT, \n, \t, \v,
\b, \r, \f, \a. Any of them could be enclosed into \{}.
Signed-off-by: Slava Zanko <slavazanko@gmail.com>
