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
line wrap: on
line source

" 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