Mercurial > vim
view src/testdir/test_fileformat.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 | a52697bcffa6 |
children |
line wrap: on
line source
" Test for 'fileformat' source shared.vim " Test behavior of fileformat after bwipeout of last buffer func Test_fileformat_after_bw() bwipeout set fileformat& if &fileformat == 'dos' let test_fileformats = 'unix' elseif &fileformat == 'unix' let test_fileformats = 'mac' else " must be mac let test_fileformats = 'dos' endif exec 'set fileformats='.test_fileformats bwipeout! call assert_equal(test_fileformats, &fileformat) set fileformats& endfunc func Test_fileformat_autocommand() let filecnt = ["", "foobar\<CR>", "eins\<CR>", "\<CR>", "zwei\<CR>", "drei", "vier", "fünf", ""] let ffs = &ffs call writefile(filecnt, 'Xffafile', 'bD') au BufReadPre Xffafile set ffs=dos ff=dos new Xffafile call assert_equal('dos', &l:ff) call assert_equal('dos', &ffs) " cleanup let &ffs = ffs au! BufReadPre Xffafile bw! endfunc func Test_fileformat_nomodifiable() new setlocal nomodifiable call assert_fails('set fileformat=latin1', 'E21:') bw endfunc " Convert the contents of a file into a literal string func s:file2str(fname) let b = readfile(a:fname, 'B') let s = '' for c in b let s .= nr2char(c) endfor return s endfunc " Concatenate the contents of files 'f1' and 'f2' and create 'destfile' func s:concat_files(f1, f2, destfile) let b1 = readfile(a:f1, 'B') let b2 = readfile(a:f2, 'B') let b3 = b1 + b2 call writefile(b3, a:destfile, 'B') endfun " Test for a lot of variations of the 'fileformats' option func Test_fileformats() " create three test files, one in each format call writefile(['unix', 'unix'], 'XXUnix', 'D') call writefile(["dos\r", "dos\r"], 'XXDos', 'D') call writefile(["mac\rmac\r"], 'XXMac', 'bD') " create a file with no End Of Line call writefile(["noeol"], 'XXEol', 'bD') " create mixed format files call s:concat_files('XXUnix', 'XXDos', 'XXUxDs') call s:concat_files('XXUnix', 'XXMac', 'XXUxMac') call s:concat_files('XXDos', 'XXMac', 'XXDosMac') call s:concat_files('XXMac', 'XXEol', 'XXMacEol') call s:concat_files('XXUxDs', 'XXMac', 'XXUxDsMc') " The :bwipe commands below cause us to get back to the current buffer. " Avoid stray errors for various 'fileformat' values which may cause a " modeline to be misinterpreted by wiping the buffer and editing a new one. only! bwipe! enew " Test 1: try reading and writing with 'fileformats' empty set fileformats= " try with 'fileformat' set to 'unix' set fileformat=unix e! XXUnix w! Xtest call assert_equal("unix\nunix\n", s:file2str('Xtest')) e! XXDos w! Xtest call assert_equal("dos\r\ndos\r\n", s:file2str('Xtest')) e! XXMac w! Xtest call assert_equal("mac\rmac\r\n", s:file2str('Xtest')) bwipe XXUnix XXDos XXMac " try with 'fileformat' set to 'dos' set fileformat=dos e! XXUnix w! Xtest call assert_equal("unix\r\nunix\r\n", s:file2str('Xtest')) e! XXDos w! Xtest call assert_equal("dos\r\ndos\r\n", s:file2str('Xtest')) e! XXMac w! Xtest call assert_equal("mac\rmac\r\r\n", s:file2str('Xtest')) bwipe XXUnix XXDos XXMac " try with 'fileformat' set to 'mac' set fileformat=mac e! XXUnix w! Xtest call assert_equal("unix\nunix\n\r", s:file2str('Xtest')) e! XXDos w! Xtest call assert_equal("dos\r\ndos\r\n\r", s:file2str('Xtest')) e! XXMac w! Xtest call assert_equal("mac\rmac\r", s:file2str('Xtest')) bwipe XXUnix XXDos XXMac " Test 2: try reading and writing with 'fileformats' set to one format " try with 'fileformats' set to 'unix' set fileformats=unix e! XXUxDsMc w! Xtest call assert_equal("unix\nunix\ndos\r\ndos\r\nmac\rmac\r\n", \ s:file2str('Xtest')) bwipe XXUxDsMc " try with 'fileformats' set to 'dos' set fileformats=dos e! XXUxDsMc w! Xtest call assert_equal("unix\r\nunix\r\ndos\r\ndos\r\nmac\rmac\r\r\n", \ s:file2str('Xtest')) bwipe XXUxDsMc " try with 'fileformats' set to 'mac' set fileformats=mac e! XXUxDsMc w! Xtest call assert_equal("unix\nunix\ndos\r\ndos\r\nmac\rmac\r", \ s:file2str('Xtest')) bwipe XXUxDsMc " Test 3: try reading and writing with 'fileformats' set to two formats " try with 'fileformats' set to 'unix,dos' set fileformats=unix,dos e! XXUxDsMc w! Xtest call assert_equal("unix\nunix\ndos\r\ndos\r\nmac\rmac\r\n", \ s:file2str('Xtest')) bwipe XXUxDsMc e! XXUxMac w! Xtest call assert_equal("unix\nunix\nmac\rmac\r\n", s:file2str('Xtest')) bwipe XXUxMac e! XXDosMac w! Xtest call assert_equal("dos\r\ndos\r\nmac\rmac\r\r\n", s:file2str('Xtest')) bwipe XXDosMac " try with 'fileformats' set to 'unix,mac' set fileformats=unix,mac e! XXUxDs w! Xtest call assert_equal("unix\nunix\ndos\r\ndos\r\n", s:file2str('Xtest')) bwipe XXUxDs e! XXUxDsMc w! Xtest call assert_equal("unix\nunix\ndos\r\ndos\r\nmac\rmac\r\n", \ s:file2str('Xtest')) bwipe XXUxDsMc e! XXDosMac w! Xtest call assert_equal("dos\r\ndos\r\nmac\rmac\r", s:file2str('Xtest')) bwipe XXDosMac e! XXEol exe "normal ggO\<C-R>=&ffs\<CR>:\<C-R>=&ff\<CR>" w! Xtest call assert_equal("unix,mac:unix\nnoeol\n", s:file2str('Xtest')) bwipe! XXEol " try with 'fileformats' set to 'dos,mac' set fileformats=dos,mac e! XXUxDs w! Xtest call assert_equal("unix\r\nunix\r\ndos\r\ndos\r\n", s:file2str('Xtest')) bwipe XXUxDs e! XXUxMac exe "normal ggO\<C-R>=&ffs\<CR>:\<C-R>=&ff\<CR>" w! Xtest call assert_equal("dos,mac:dos\r\nunix\r\nunix\r\nmac\rmac\r\r\n", \ s:file2str('Xtest')) bwipe! XXUxMac e! XXUxDsMc w! Xtest call assert_equal("unix\r\nunix\r\ndos\r\ndos\r\nmac\rmac\r\r\n", \ s:file2str('Xtest')) bwipe XXUxDsMc e! XXMacEol exe "normal ggO\<C-R>=&ffs\<CR>:\<C-R>=&ff\<CR>" w! Xtest call assert_equal("dos,mac:mac\rmac\rmac\rnoeol\r", s:file2str('Xtest')) bwipe! XXMacEol " Test 4: try reading and writing with 'fileformats' set to three formats set fileformats=unix,dos,mac e! XXUxDsMc w! Xtest call assert_equal("unix\nunix\ndos\r\ndos\r\nmac\rmac\r\n", \ s:file2str('Xtest')) bwipe XXUxDsMc e! XXEol exe "normal ggO\<C-R>=&ffs\<CR>:\<C-R>=&ff\<CR>" w! Xtest call assert_equal("unix,dos,mac:unix\nnoeol\n", s:file2str('Xtest')) bwipe! XXEol set fileformats=mac,dos,unix e! XXUxDsMc w! Xtest call assert_equal("unix\nunix\ndos\r\ndos\r\nmac\rmac\r\n", \ s:file2str('Xtest')) bwipe XXUxDsMc e! XXEol exe "normal ggO\<C-R>=&ffs\<CR>:\<C-R>=&ff\<CR>" w! Xtest call assert_equal("mac,dos,unix:mac\rnoeol\r", s:file2str('Xtest')) bwipe! XXEol " Test 5: try with 'binary' set set fileformats=mac,unix,dos set binary e! XXUxDsMc w! Xtest call assert_equal("unix\nunix\ndos\r\ndos\r\nmac\rmac\r", \ s:file2str('Xtest')) bwipe XXUxDsMc set fileformats=mac e! XXUxDsMc w! Xtest call assert_equal("unix\nunix\ndos\r\ndos\r\nmac\rmac\r", \ s:file2str('Xtest')) bwipe XXUxDsMc set fileformats=dos e! XXUxDsMc w! Xtest call assert_equal("unix\nunix\ndos\r\ndos\r\nmac\rmac\r", \ s:file2str('Xtest')) bwipe XXUxDsMc e! XXUnix w! Xtest call assert_equal("unix\nunix\n", s:file2str('Xtest')) bwipe! XXUnix set nobinary ff& ffs& " cleanup only %bwipe! call delete('XXUxDs') call delete('XXUxMac') call delete('XXDosMac') call delete('XXMacEol') call delete('XXUxDsMc') call delete('Xtest') endfunc " Test for changing the fileformat using ++read func Test_fileformat_plusplus_read() new call setline(1, ['one', 'two', 'three']) w ++ff=dos Xfile1 enew! set ff=unix " A :read doesn't change the fileformat, but does apply to the read lines. r ++fileformat=unix Xfile1 call assert_equal('unix', &fileformat) call assert_equal("three\r", getline('$')) 3r ++edit Xfile1 call assert_equal('dos', &fileformat) close! call delete('Xfile1') set fileformat& call assert_fails('e ++fileformat Xfile1', 'E474:') call assert_fails('e ++ff=abc Xfile1', 'E474:') call assert_fails('e ++abc1 Xfile1', 'E474:') endfunc " When Vim starts up with an empty buffer the first item in 'fileformats' is " used as the 'fileformat'. func Test_fileformat_on_startup() let after =<< trim END call writefile([&fileformat], 'Xonsfile', 'a') quit END call RunVim(["set ffs=dos,unix,mac"], after, '') call RunVim(["set ffs=mac,dos,unix"], after, '') call RunVim(["set ffs=unix,mac,dos"], after, '') call assert_equal(['dos', 'mac', 'unix'], readfile('Xonsfile')) call delete('Xonsfile') endfunc " vim: shiftwidth=2 sts=2 expandtab