Mercurial > vim
view src/testdir/test_tabline.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 | 5dfaba11d7c3 |
children |
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line source
" Test for tabline source shared.vim source view_util.vim source check.vim source screendump.vim func TablineWithCaughtError() let s:func_in_tabline_called = 1 try call eval('unknown expression') catch endtry return '' endfunc func TablineWithError() let s:func_in_tabline_called = 1 call eval('unknown expression') return '' endfunc func Test_caught_error_in_tabline() if has('gui') set guioptions-=e endif let showtabline_save = &showtabline set showtabline=2 let s:func_in_tabline_called = 0 let tabline = '%{TablineWithCaughtError()}' let &tabline = tabline redraw! call assert_true(s:func_in_tabline_called) call assert_equal(tabline, &tabline) set tabline= let &showtabline = showtabline_save endfunc func Test_tabline_will_be_disabled_with_error() if has('gui') set guioptions-=e endif let showtabline_save = &showtabline set showtabline=2 let s:func_in_tabline_called = 0 let tabline = '%{TablineWithError()}' try let &tabline = tabline redraw! catch endtry call assert_true(s:func_in_tabline_called) call assert_equal('', &tabline) set tabline= let &showtabline = showtabline_save endfunc func Test_redrawtabline() if has('gui') set guioptions-=e endif let showtabline_save = &showtabline set showtabline=2 set tabline=%{bufnr('$')} edit Xtabline1 edit Xtabline2 redraw call assert_match(bufnr('$') . '', Screenline(1)) au BufAdd * redrawtabline badd Xtabline3 call assert_match(bufnr('$') . '', Screenline(1)) set tabline= let &showtabline = showtabline_save au! Bufadd endfunc " Test for the "%T" and "%X" flags in the 'tabline' option func MyTabLine() let s = '' for i in range(tabpagenr('$')) " set the tab page number (for mouse clicks) let s .= '%' . (i + 1) . 'T' " the label is made by MyTabLabel() let s .= ' %{MyTabLabel(' . (i + 1) . ')} ' endfor " after the last tab fill with TabLineFill and reset tab page nr let s .= '%T' " right-align the label to close the current tab page if tabpagenr('$') > 1 let s .= '%=%Xclose' endif return s endfunc func MyTabLabel(n) let buflist = tabpagebuflist(a:n) let winnr = tabpagewinnr(a:n) return bufname(buflist[winnr - 1]) endfunc func Test_tabline_flags() if has('gui') set guioptions-=e endif set tabline=%!MyTabLine() edit Xtabline1 tabnew Xtabline2 redrawtabline call assert_match('^ Xtabline1 Xtabline2\s\+close$', Screenline(1)) set tabline= %bw! endfunc function EmptyTabname() return "" endfunction function MakeTabLine() abort let titles = map(range(1, tabpagenr('$')), '"%( %" . v:val . "T%{EmptyTabname()}%T %)"') let sep = 'あ' let tabpages = join(titles, sep) return tabpages .. sep .. '%=%999X X' endfunction func Test_tabline_empty_group() " this was reading invalid memory set tabline=%!MakeTabLine() tabnew redraw! bw! set tabline= endfunc " When there are exactly 20 tabline format items (the exact size of the " initial tabline items array), test that we don't write beyond the size " of the array. func Test_tabline_20_format_items_no_overrun() set showtabline=2 let tabline = repeat('%#StatColorHi2#', 20) let &tabline = tabline redrawtabline set showtabline& tabline& endfunc func Test_mouse_click_in_tab() " This used to crash because TabPageIdxs[] was not initialized let lines =<< trim END tabnew set mouse=a exe "norm \<LeftMouse>" END call writefile(lines, 'Xclickscript', 'D') call RunVim([], [], "-e -s -S Xclickscript -c qa") endfunc func Test_tabline_showcmd() CheckScreendump let lines =<< trim END func MyTabLine() return '%S' endfunc set showtabline=2 set tabline=%!MyTabLine() set showcmdloc=tabline call setline(1, ['a', 'b', 'c']) set foldopen+=jump 1,2fold 3 END call writefile(lines, 'XTest_tabline', 'D') let buf = RunVimInTerminal('-S XTest_tabline', {'rows': 6}) call term_sendkeys(buf, "g") call VerifyScreenDump(buf, 'Test_tabline_showcmd_1', {}) " typing "gg" should open the fold call term_sendkeys(buf, "g") call VerifyScreenDump(buf, 'Test_tabline_showcmd_2', {}) call term_sendkeys(buf, "\<C-V>Gl") call VerifyScreenDump(buf, 'Test_tabline_showcmd_3', {}) call term_sendkeys(buf, "\<Esc>1234") call VerifyScreenDump(buf, 'Test_tabline_showcmd_4', {}) call term_sendkeys(buf, "\<Esc>:set tabline=\<CR>") call term_sendkeys(buf, ":\<CR>") call term_sendkeys(buf, "1234") call VerifyScreenDump(buf, 'Test_tabline_showcmd_5', {}) call StopVimInTerminal(buf) endfunc func TruncTabLine() return '%1T口口%2Ta' .. repeat('b', &columns - 4) .. '%999X%#TabLine#c' endfunc " Test 'tabline' with truncated double-width label at the start. func Test_tabline_truncated_double_width() tabnew redraw call assert_match('X$', Screenline(1)) let attr_TabLineFill = screenattr(1, &columns - 1) let attr_TabLine = screenattr(1, &columns) call assert_notequal(attr_TabLine, attr_TabLineFill) set tabline=%!TruncTabLine() redraw call assert_equal('<a' .. repeat('b', &columns - 4) .. 'c', Screenline(1)) call assert_equal(attr_TabLineFill, screenattr(1, &columns - 2)) call assert_equal(attr_TabLine, screenattr(1, &columns - 1)) call assert_equal(attr_TabLine, screenattr(1, &columns)) bw! set tabline= endfunc " vim: shiftwidth=2 sts=2 expandtab