Mercurial > vim
view src/testdir/test_expand_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 | dbec60b8c253 |
children |
line wrap: on
line source
" Tests for expand() source shared.vim let s:sfile = expand('<sfile>') let s:slnum = str2nr(expand('<slnum>')) let s:sflnum = str2nr(expand('<sflnum>')) func s:expand_sfile() return expand('<sfile>') endfunc func s:expand_slnum() return str2nr(expand('<slnum>')) endfunc func s:expand_sflnum() return str2nr(expand('<sflnum>')) endfunc " This test depends on the location in the test file, put it first. func Test_expand_sflnum() call assert_equal(7, s:sflnum) call assert_equal(24, str2nr(expand('<sflnum>'))) " Line-continuation call assert_equal( \ 27, \ str2nr(expand('<sflnum>'))) " Call in script-local function call assert_equal(18, s:expand_sflnum()) " Call in command command Flnum echo expand('<sflnum>') call assert_equal(36, str2nr(trim(execute('Flnum')))) delcommand Flnum endfunc func Test_expand_sfile_and_stack() call assert_match('test_expand_func\.vim$', s:sfile) let expected = 'script .*testdir/runtest.vim\[\d\+\]\.\.function RunTheTest\[\d\+\]\.\.Test_expand_sfile_and_stack' call assert_match(expected .. '$', expand('<sfile>')) call assert_match(expected .. '\[4\]$' , expand('<stack>')) " Call in script-local function call assert_match('script .*testdir/runtest.vim\[\d\+\]\.\.function RunTheTest\[\d\+\]\.\.Test_expand_sfile_and_stack\[7\]\.\.<SNR>\d\+_expand_sfile$', s:expand_sfile()) " Call in command command Sfile echo expand('<sfile>') call assert_match('script .*testdir/runtest.vim\[\d\+\]\.\.function RunTheTest\[\d\+\]\.\.Test_expand_sfile_and_stack$', trim(execute('Sfile'))) delcommand Sfile " Use <stack> from sourced script. let lines =<< trim END " comment here let g:stack_value = expand('<stack>') END call writefile(lines, 'Xstack', 'D') source Xstack call assert_match('\<Xstack\[2\]$', g:stack_value) unlet g:stack_value if exists('+shellslash') call mkdir('Xshellslash', 'R') let lines =<< trim END let g:stack1 = expand('<stack>') set noshellslash let g:stack2 = expand('<stack>') set shellslash let g:stack3 = expand('<stack>') END call writefile(lines, 'Xshellslash/Xstack') " Test that changing 'shellslash' always affects the result of expand() " when sourcing a script multiple times. for i in range(2) source Xshellslash/Xstack call assert_match('\<Xshellslash/Xstack\[1\]$', g:stack1) call assert_match('\<Xshellslash\\Xstack\[3\]$', g:stack2) call assert_match('\<Xshellslash/Xstack\[5\]$', g:stack3) unlet g:stack1 unlet g:stack2 unlet g:stack3 endfor endif endfunc func Test_expand_slnum() call assert_equal(6, s:slnum) call assert_equal(2, str2nr(expand('<slnum>'))) " Line-continuation call assert_equal( \ 5, \ str2nr(expand('<slnum>'))) " Call in script-local function call assert_equal(1, s:expand_slnum()) " Call in command command Slnum echo expand('<slnum>') call assert_equal(14, str2nr(trim(execute('Slnum')))) delcommand Slnum endfunc func Test_expand() new call assert_equal("", expand('%:S')) call assert_equal('3', '<slnum>'->expand()) call assert_equal(['4'], expand('<slnum>', v:false, v:true)) " Don't add any line above this, otherwise <slnum> will change. call assert_equal("", expand('%')) set verbose=1 call assert_equal("", expand('%')) set verbose=0 call assert_equal("", expand('%:p')) quit endfunc func s:sid_test() return 'works' endfunc func Test_expand_SID() let sid = expand('<SID>') execute 'let g:sid_result = ' .. sid .. 'sid_test()' call assert_equal('works', g:sid_result) endfunc " Test for 'wildignore' with expand() func Test_expand_wildignore() set wildignore=*.vim call assert_equal('', expand('test_expand_func.vim')) call assert_equal('', expand('test_expand_func.vim', 0)) call assert_equal([], expand('test_expand_func.vim', 0, 1)) call assert_equal('test_expand_func.vim', expand('test_expand_func.vim', 1)) call assert_equal(['test_expand_func.vim'], \ expand('test_expand_func.vim', 1, 1)) call assert_fails("call expand('*', [])", 'E745:') set wildignore& endfunc " vim: shiftwidth=2 sts=2 expandtab