Mercurial > vim
view src/testdir/test_suspend.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 | 543cb94c6c09 |
children |
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line source
" Test :suspend source check.vim source term_util.vim source shared.vim func CheckSuspended(buf, fileExists) call WaitForAssert({-> assert_match('[$#] $', term_getline(a:buf, '.'))}) if a:fileExists call assert_equal(['foo'], readfile('Xfoo')) else " Without 'autowrite', buffer should not be written. call assert_equal(0, filereadable('Xfoo')) endif call term_sendkeys(a:buf, "fg\<CR>\<C-L>") call WaitForAssert({-> assert_equal(' 1 foo', term_getline(a:buf, '.'))}) endfunc func Test_suspend() CheckFeature terminal CheckExecutable /bin/sh " Somehow the modifyOtherKeys response may get to the terminal when using " Mac OS. Make t_RK and 'keyprotocol' empty to avoid that. set t_RK= keyprotocol= call WaitForResponses() let buf = term_start('/bin/sh') " Wait for shell prompt. call WaitForAssert({-> assert_match('[$#] $', term_getline(buf, '.'))}) call term_sendkeys(buf, v:progpath \ . " --clean -X" \ . " -c 'set nu keyprotocol='" \ . " -c 'call setline(1, \"foo\")'" \ . " Xfoo\<CR>") " Cursor in terminal buffer should be on first line in spawned vim. call WaitForAssert({-> assert_equal(' 1 foo', term_getline(buf, '.'))}) for suspend_cmd in [":suspend\<CR>", \ ":stop\<CR>", \ ":suspend!\<CR>", \ ":stop!\<CR>", \ "\<C-Z>"] " Suspend and wait for shell prompt. call term_sendkeys(buf, suspend_cmd) call CheckSuspended(buf, 0) endfor " Test that :suspend! with 'autowrite' writes content of buffers if modified. call term_sendkeys(buf, ":set autowrite\<CR>") call assert_equal(0, filereadable('Xfoo')) call term_sendkeys(buf, ":suspend\<CR>") " Wait for shell prompt. call CheckSuspended(buf, 1) " Quit gracefully to dump coverage information. call term_sendkeys(buf, ":qall!\<CR>") call TermWait(buf) " Wait until Vim actually exited and shell shows a prompt call WaitForAssert({-> assert_match('[$#] $', term_getline(buf, '.'))}) call StopShellInTerminal(buf) exe buf . 'bwipe!' call delete('Xfoo') endfunc func Test_suspend_autocmd() CheckFeature terminal CheckExecutable /bin/sh " Somehow the modifyOtherKeys response may get to the terminal when using " Mac OS. Make t_RK and 'keyprotocol' empty to avoid that. set t_RK= keyprotocol= call WaitForResponses() let buf = term_start('/bin/sh', #{term_rows: 6}) " Wait for shell prompt. call WaitForAssert({-> assert_match('[$#] $', term_getline(buf, '.'))}) call term_sendkeys(buf, v:progpath \ . " --clean -X" \ . " -c 'set nu keyprotocol='" \ . " -c 'let g:count = 0'" \ . " -c 'au VimSuspend * let g:count += 1'" \ . " -c 'au VimResume * let g:count += 1'" \ . " -c 'call setline(1, \"foo\")'" \ . " Xfoo\<CR>") " Cursor in terminal buffer should be on first line in spawned vim. call WaitForAssert({-> assert_equal(' 1 foo', term_getline(buf, '.'))}) for suspend_cmd in [":suspend\<CR>", \ ":stop\<CR>", \ ":suspend!\<CR>", \ ":stop!\<CR>", \ "\<C-Z>"] " Suspend and wait for shell prompt. Then "fg" will restore Vim. call term_sendkeys(buf, suspend_cmd) call CheckSuspended(buf, 0) endfor call term_sendkeys(buf, ":echo g:count\<CR>") call TermWait(buf) call WaitForAssert({-> assert_match('^10', term_getline(buf, 6))}) " Quit gracefully to dump coverage information. call term_sendkeys(buf, ":qall!\<CR>") call TermWait(buf) " Wait until Vim actually exited and shell shows a prompt call WaitForAssert({-> assert_match('[$#] $', term_getline(buf, '.'))}) call StopShellInTerminal(buf) exe buf . 'bwipe!' call delete('Xfoo') endfunc " vim: shiftwidth=2 sts=2 expandtab