Mercurial > vim
view src/testdir/test_charsearch.vim @ 33776:9503dc55b5ed v9.0.2108
patch 9.0.2108: [security]: overflow with count for :s command
Commit: https://github.com/vim/vim/commit/ac63787734fda2e294e477af52b3bd601517fa78
Author: Christian Brabandt <cb@256bit.org>
Date: Tue Nov 14 20:45:48 2023 +0100
patch 9.0.2108: [security]: overflow with count for :s command
Problem: [security]: overflow with count for :s command
Solution: Abort the :s command if the count is too large
If the count after the :s command is larger than what fits into a
(signed) long variable, abort with e_value_too_large.
Adds a test with INT_MAX as count and verify it correctly fails.
It seems the return value on Windows using mingw compiler wraps around,
so the initial test using :s/./b/9999999999999999999999999990 doesn't
fail there, since the count is wrapping around several times and finally
is no longer larger than 2147483647. So let's just use 2147483647 in the
test, which hopefully will always cause a failure
Signed-off-by: Christian Brabandt <cb@256bit.org>
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Thu, 16 Nov 2023 22:15:10 +0100 |
| parents | 695b50472e85 |
| children |
line wrap: on
line source
" Test for character search commands - t, T, f, F, ; and , func Test_charsearch() enew! call append(0, ['Xabcdefghijkemnopqretuvwxyz', \ 'Yabcdefghijkemnopqretuvwxyz', \ 'Zabcdefghijkemnokqretkvwxyz']) " check that "fe" and ";" work 1 normal! ylfep;;p,,p call assert_equal('XabcdeXfghijkeXmnopqreXtuvwxyz', getline(1)) " check that save/restore works 2 normal! ylfep let csave = getcharsearch() normal! fip call setcharsearch(csave) normal! ;p;p call assert_equal('YabcdeYfghiYjkeYmnopqreYtuvwxyz', getline(2)) " check that setcharsearch() changes the settings. 3 normal! ylfep eval {'char': 'k'}->setcharsearch() normal! ;p call setcharsearch({'forward': 0}) normal! $;p call setcharsearch({'until': 1}) set cpo-=; normal! ;;p call assert_equal('ZabcdeZfghijkZZemnokqretkZvwxyz', getline(3)) " check that repeating a search before and after a line fails normal 3Gfv call assert_beeps('normal ;') call assert_beeps('normal ,') " clear the character search call setcharsearch({'char' : ''}) call assert_equal('', getcharsearch().char) call assert_beeps('normal ;') call assert_beeps('normal ,') call assert_fails("call setcharsearch([])", 'E1206:') enew! endfunc " Test for character search in virtual edit mode with <Tab> func Test_csearch_virtualedit() new set virtualedit=all call setline(1, "a\tb") normal! tb call assert_equal([0, 1, 2, 6], getpos('.')) set virtualedit& bw! endfunc " Test for character search failure in latin1 encoding func Test_charsearch_latin1() new let save_enc = &encoding set encoding=latin1 call setline(1, 'abcdefghijk') call assert_beeps('normal fz') call assert_beeps('normal tx') call assert_beeps('normal $Fz') call assert_beeps('normal $Tx') let &encoding = save_enc bw! endfunc " Test for using character search to find a multibyte character with composing " characters. func Test_charsearch_composing_char() new call setline(1, "one two thq\u0328\u0301r\u0328\u0301ree") call feedkeys("fr\u0328\u0301", 'xt') call assert_equal([0, 1, 16, 0, 12], getcurpos()) " use character search with a multi-byte character followed by a " non-composing character call setline(1, "abc deȉf ghi") call feedkeys("ggcf\u0209\u0210", 'xt') call assert_equal("\u0210f ghi", getline(1)) bw! endfunc " Test for character search with 'hkmap' func Test_charsearch_hkmap() new set hkmap call setline(1, "ùðáâ÷ëòéïçìêöî") call feedkeys("fë", 'xt') call assert_equal([0, 1, 11, 0, 6], getcurpos()) set hkmap& bw! endfunc " vim: shiftwidth=2 sts=2 expandtab