Mercurial > vim
view src/testdir/test_hide.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 | e373843e2980 |
children |
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" Tests for :hide command/modifier and 'hidden' option func SetUp() let s:save_hidden = &hidden let s:save_bufhidden = &bufhidden let s:save_autowrite = &autowrite set nohidden set bufhidden= set noautowrite endfunc function TearDown() let &hidden = s:save_hidden let &bufhidden = s:save_bufhidden let &autowrite = s:save_autowrite endfunc function Test_hide() let orig_bname = bufname('') let orig_winnr = winnr('$') new Xf1 set modified call assert_fails('edit Xf2') bwipeout! Xf1 new Xf1 set modified edit! Xf2 call assert_equal(['Xf2', 2], [bufname(''), winnr('$')]) call assert_equal([1, 0], [buflisted('Xf1'), bufloaded('Xf1')]) bwipeout! Xf1 bwipeout! Xf2 new Xf1 set modified " :hide as a command hide call assert_equal([orig_bname, orig_winnr], [bufname(''), winnr('$')]) call assert_equal([1, 1], ['Xf1'->buflisted(), 'Xf1'->bufloaded()]) bwipeout! Xf1 new Xf1 set modified " :hide as a command with trailing comment hide " comment call assert_equal([orig_bname, orig_winnr], [bufname(''), winnr('$')]) call assert_equal([1, 1], [buflisted('Xf1'), bufloaded('Xf1')]) bwipeout! Xf1 new Xf1 set modified " :hide as a command with bar hide | new Xf2 " comment call assert_equal(['Xf2', 2], [bufname(''), winnr('$')]) call assert_equal([1, 1], [buflisted('Xf1'), bufloaded('Xf1')]) bwipeout! Xf1 bwipeout! Xf2 new Xf1 set modified " :hide as a modifier with trailing comment hide edit Xf2 " comment call assert_equal(['Xf2', 2], [bufname(''), winnr('$')]) call assert_equal([1, 1], [buflisted('Xf1'), bufloaded('Xf1')]) bwipeout! Xf1 bwipeout! Xf2 new Xf1 set modified " To check that the bar is not recognized to separate commands hide echo "one|two" call assert_equal(['Xf1', 2], [bufname(''), winnr('$')]) call assert_equal([1, 1], [buflisted('Xf1'), bufloaded('Xf1')]) bwipeout! Xf1 " set hidden new Xf1 set hidden set modified edit Xf2 " comment call assert_equal(['Xf2', 2], [bufname(''), winnr('$')]) call assert_equal([1, 1], [buflisted('Xf1'), bufloaded('Xf1')]) bwipeout! Xf1 bwipeout! Xf2 " set hidden bufhidden=wipe new Xf1 set bufhidden=wipe set modified hide edit! Xf2 " comment call assert_equal(['Xf2', 2], [bufname(''), winnr('$')]) call assert_equal([0, 0], [buflisted('Xf1'), bufloaded('Xf1')]) bwipeout! Xf2 endfunc " vim: shiftwidth=2 sts=2 expandtab