Mercurial > vim
view src/testdir/test_execute_func.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 | ea38db8639eb |
children | 239e20a09999 |
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" test execute() source view_util.vim source check.vim import './vim9.vim' as v9 source term_util.vim func NestedEval() let nested = execute('echo "nested\nlines"') echo 'got: "' . nested . '"' endfunc func NestedRedir() redir => var echo 'broken' redir END endfunc func Test_execute_string() call assert_equal("\nnocompatible", execute('set compatible?')) call assert_equal("\nsomething\nnice", execute('echo "something\nnice"')) call assert_equal("noendofline", execute('echon "noendofline"')) call assert_equal("", execute(123)) call assert_equal("\ngot: \"\nnested\nlines\"", execute('call NestedEval()')) redir => redired echo 'this' let evaled = execute('echo "that"') echo 'theend' redir END call assert_equal("\nthis\ntheend", redired) call assert_equal("\nthat", evaled) call assert_fails('call execute("doesnotexist")', 'E492:') call assert_fails('call execute("call NestedRedir()")', 'E930:') call assert_equal("\nsomething", execute('echo "something"', '')) call assert_equal("\nsomething", execute('echo "something"', 'silent')) call assert_equal("\nsomething", execute('echo "something"', 'silent!')) call assert_equal("", execute('burp', 'silent!')) call assert_fails('call execute(3.4)', 'E492:') call assert_equal("\nx", execute("echo \"x\"", 3.4)) call v9.CheckDefExecAndScriptFailure(['execute("echo \"x\"", 3.4)'], ['E1013: Argument 2: type mismatch, expected string but got float', 'E1174:']) endfunc func Test_execute_list() call assert_equal("\nsomething\nnice", execute(['echo "something"', 'echo "nice"'])) let l = ['for n in range(0, 3)', \ 'echo n', \ 'endfor'] call assert_equal("\n0\n1\n2\n3", execute(l)) call assert_equal("", execute([])) endfunc func Test_execute_does_not_change_col() echo '' echon 'abcd' let x = execute('silent echo 234343') echon 'xyz' let text = '' for col in range(1, 7) let text .= nr2char(screenchar(&lines, col)) endfor call assert_equal('abcdxyz', text) endfunc func Test_execute_not_silent() echo '' echon 'abcd' let x = execute('echon 234', '') echo 'xyz' let text1 = '' for col in range(1, 8) let text1 .= nr2char(screenchar(&lines - 1, col)) endfor call assert_equal('abcd234 ', text1) let text2 = '' for col in range(1, 4) let text2 .= nr2char(screenchar(&lines, col)) endfor call assert_equal('xyz ', text2) endfunc func Test_win_execute() let thiswin = win_getid() new let otherwin = win_getid() call setline(1, 'the new window') call win_gotoid(thiswin) let line = win_execute(otherwin, 'echo getline(1)') call assert_match('the new window', line) let line = win_execute(134343, 'echo getline(1)') call assert_equal('', line) if has('popupwin') let popupwin = popup_create('the popup win', {'line': 2, 'col': 3}) redraw let line = 'echo getline(1)'->win_execute(popupwin) call assert_match('the popup win', line) call popup_close(popupwin) endif call win_gotoid(otherwin) bwipe! " check :lcd in another window does not change directory let curid = win_getid() let curdir = getcwd() split Xother lcd .. " Use :pwd to get the actual current directory let otherdir = execute('pwd') call win_execute(curid, 'lcd testdir') call assert_equal(otherdir, execute('pwd')) bwipe! execute 'cd ' .. curdir endfunc func Test_win_execute_update_ruler() CheckFeature quickfix enew call setline(1, range(500)) 20 split let winid = win_getid() set ruler wincmd w let height = winheight(winid) redraw call assert_match('20,1', Screenline(height + 1)) let line = win_execute(winid, 'call cursor(100, 1)') redraw call assert_match('100,1', Screenline(height + 1)) bwipe! endfunc func Test_win_execute_other_tab() let thiswin = win_getid() tabnew call win_execute(thiswin, 'let xyz = 1') call assert_equal(1, xyz) tabclose unlet xyz endfunc func Test_win_execute_visual_redraw() call setline(1, ['a', 'b', 'c']) new wincmd p " start Visual in current window, redraw in other window with fewer lines call feedkeys("G\<C-V>", 'txn') call win_execute(winnr('#')->win_getid(), 'redraw') call feedkeys("\<Esc>", 'txn') bwipe! bwipe! enew new call setline(1, ['a', 'b', 'c']) let winid = win_getid() wincmd p " start Visual in current window, extend it in other window with more lines call feedkeys("\<C-V>", 'txn') call win_execute(winid, 'call feedkeys("G\<C-V>", ''txn'')') redraw bwipe! bwipe! endfunc func Test_win_execute_on_startup() CheckRunVimInTerminal let lines =<< trim END vim9script [repeat('x', &columns)]->writefile('Xfile1') silent tabedit Xfile2 var id = win_getid() silent tabedit Xfile3 autocmd VimEnter * win_execute(id, 'close') END call writefile(lines, 'XwinExecute', 'D') let buf = RunVimInTerminal('-p Xfile1 -Nu XwinExecute', {}) " this was crashing on exit with EXITFREE defined call StopVimInTerminal(buf) call delete('Xfile1') endfunc func Test_execute_func_with_null() call assert_equal("", execute(test_null_string())) call assert_equal("", execute(test_null_list())) call assert_fails('call execute(test_null_dict())', 'E731:') call assert_fails('call execute(test_null_blob())', 'E976:') call assert_fails('call execute(test_null_partial())','E729:') if has('job') call assert_fails('call execute(test_null_job())', 'E908:') call assert_fails('call execute(test_null_channel())', 'E908:') endif endfunc " vim: shiftwidth=2 sts=2 expandtab