Mercurial > vim
view src/testdir/test_exit.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 | 695b50472e85 |
children |
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" Tests for exiting Vim. source shared.vim source check.vim func Test_exiting() let after =<< trim [CODE] au QuitPre * call writefile(["QuitPre"], "Xtestout") au ExitPre * call writefile(["ExitPre"], "Xtestout", "a") quit [CODE] if RunVim([], after, '') call assert_equal(['QuitPre', 'ExitPre'], readfile('Xtestout')) endif call delete('Xtestout') let after =<< trim [CODE] au QuitPre * call writefile(["QuitPre"], "Xtestout") au ExitPre * call writefile(["ExitPre"], "Xtestout", "a") help wincmd w quit [CODE] if RunVim([], after, '') call assert_equal(['QuitPre', 'ExitPre'], readfile('Xtestout')) endif call delete('Xtestout') let after =<< trim [CODE] au QuitPre * call writefile(["QuitPre"], "Xtestout") au ExitPre * call writefile(["ExitPre"], "Xtestout", "a") split new qall [CODE] if RunVim([], after, '') call assert_equal(['QuitPre', 'ExitPre'], readfile('Xtestout')) endif call delete('Xtestout') " ExitPre autocommand splits the window, so that it's no longer the last one. let after =<< trim [CODE] au QuitPre * call writefile(["QuitPre"], "Xtestout", "a") au ExitPre * call writefile(["ExitPre"], "Xtestout", "a") augroup nasty au ExitPre * split augroup END quit augroup nasty au! ExitPre augroup END quit [CODE] if RunVim([], after, '') call assert_equal(['QuitPre', 'ExitPre', 'QuitPre', 'ExitPre'], \ readfile('Xtestout')) endif call delete('Xtestout') " ExitPre autocommand splits and closes the window, so that there is still " one window but it's a different one. let after =<< trim [CODE] au QuitPre * call writefile(["QuitPre"], "Xtestout", "a") au ExitPre * call writefile(["ExitPre"], "Xtestout", "a") augroup nasty au ExitPre * split | only augroup END quit augroup nasty au! ExitPre augroup END quit [CODE] if RunVim([], after, '') call assert_equal(['QuitPre', 'ExitPre', 'QuitPre', 'ExitPre'], \ readfile('Xtestout')) endif call delete('Xtestout') " ExitPre autocommand also executed on :wqall let after =<< trim [CODE] au QuitPre * call writefile(["QuitPre"], "Xtestout", "a") au ExitPre * call writefile(["ExitPre"], "Xtestout", "a") wqall [CODE] if RunVim([], after, '') call assert_equal(['QuitPre', 'ExitPre'], readfile('Xtestout')) endif call delete('Xtestout') endfunc " Test for getting the Vim exit code from v:exiting func Test_exit_code() call assert_equal(v:null, v:exiting) let before =<< trim [CODE] au QuitPre * call writefile(['qp = ' .. v:exiting], 'Xtestout', 'a') au ExitPre * call writefile(['ep = ' .. v:exiting], 'Xtestout', 'a') au VimLeavePre * call writefile(['lp = ' .. v:exiting], 'Xtestout', 'a') au VimLeave * call writefile(['l = ' .. v:exiting], 'Xtestout', 'a') [CODE] if RunVim(before, ['quit'], '') call assert_equal(['qp = v:null', 'ep = v:null', 'lp = 0', 'l = 0'], readfile('Xtestout')) endif call delete('Xtestout') if RunVim(before, ['cquit'], '') call assert_equal(['lp = 1', 'l = 1'], readfile('Xtestout')) endif call delete('Xtestout') if RunVim(before, ['cquit 4'], '') call assert_equal(['lp = 4', 'l = 4'], readfile('Xtestout')) endif call delete('Xtestout') endfunc func Test_exit_error_reading_input() CheckNotGui CheckNotMSWindows " The early exit causes memory not to be freed somehow CheckNotAsan CheckNotValgrind call writefile([":au VimLeave * call writefile(['l = ' .. v:exiting], 'Xtestout')", ":tabnew", "q:"], 'Xscript', 'bD') if RunVim([], [], '<Xscript') call assert_equal(1, v:shell_error) call assert_equal(['l = 1'], readfile('Xtestout')) endif call delete('Xtestout') endfun " vim: shiftwidth=2 sts=2 expandtab