Mercurial > vim
view src/testdir/test_true_false.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 |
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line source
" Test behavior of boolean-like values. source check.vim " Test what is explained at ":help TRUE" and ":help FALSE". func Test_if() if v:false call assert_true(false, 'v:false is false') endif if 0 call assert_true(false, 'zero is false') endif if "0" call assert_true(false, 'zero string is false') endif if "foo" call assert_true(false, 'foo is false') endif if " " call assert_true(false, 'space is false') endif if empty("foo") call assert_true(false, 'foo is not empty') endif if v:true else call assert_true(false, 'v:true is true') endif if 1 else call assert_true(false, 'one is true') endif if "1" else call assert_true(false, 'one string is true') endif if "1foo" else call assert_true(false, 'one in string is true') endif call assert_fails('if [1]', 'E745:') call assert_fails('if {1: 1}', 'E728:') call assert_fails('if function("string")', 'E703:') call assert_fails('if 1.3")', 'E805:') endfunc function Try_arg_true_false(expr, false_val, true_val) for v in ['v:false', '0', '"0"', '"foo"', '" "'] let r = eval(substitute(a:expr, '%v%', v, '')) call assert_equal(a:false_val, r, 'result for ' . v . ' is not ' . string(a:false_val) . ' but ' . string(r)) endfor for v in ['v:true', '1', '"1"', '"1foo"'] let r = eval(substitute(a:expr, '%v%', v, '')) call assert_equal(a:true_val, r, 'result for ' . v . ' is not ' . string(a:true_val) . ' but ' . string(r)) endfor endfunc " Test using TRUE or FALSE values for an argument. func Test_true_false_arg() call Try_arg_true_false('count(["a", "A"], "a", %v%)', 1, 2) set wildignore=*.swp call Try_arg_true_false('expand("foo.swp", %v%)', "", "foo.swp") call Try_arg_true_false('expand("foo.vim", 0, %v%)', "foo.vim", ["foo.vim"]) call setreg('a', ['x', 'y']) call Try_arg_true_false('getreg("a", 1, %v%)', "x\ny\n", ['x', 'y']) set wildignore=*.vim call Try_arg_true_false('glob("runtest.vim", %v%)', "", "runtest.vim") set wildignore=*.swp call Try_arg_true_false('glob("runtest.vim", 0, %v%)', "runtest.vim", ["runtest.vim"]) if has('unix') silent !ln -s doesntexit Xlink call Try_arg_true_false('glob("Xlink", 0, 0, %v%)', "", "Xlink") silent !rm Xlink endif set wildignore=*.vim call Try_arg_true_false('globpath(".", "runtest.vim", %v%)', "", "./runtest.vim") set wildignore=*.swp call Try_arg_true_false('globpath(".", "runtest.vim", 0, %v%)', "./runtest.vim", ["./runtest.vim"]) if has('unix') silent !ln -s doesntexit Xlink call Try_arg_true_false('globpath(".", "Xlink", 0, 0, %v%)', "", "./Xlink") silent !rm Xlink endif abbr asdf asdff call Try_arg_true_false('hasmapto("asdff", "i", %v%)', 0, 1) call Try_arg_true_false('index(["a", "A"], "A", 0, %v%)', 1, 0) function FilterMapArg(d) if type(a:d) == type({}) return filter(a:d, 'v:key == "rhs"') endif return a:d endfunction call Try_arg_true_false('maparg("asdf", "i", %v%)', "", "asdff") call Try_arg_true_false('FilterMapArg(maparg("asdf", "i", 1, %v%))', "asdff", {'rhs': 'asdff'}) call Try_arg_true_false('"asdf"->hasmapto("i", %v%)', 0, 1) new colored call setline(1, '<here>') syn match brackets "<.*>" syn match here "here" transparent let brackets_id = synID(1, 1, 0) let here_id = synID(1, 3, 0) call Try_arg_true_false('synID(1, 3, %v%)', here_id, brackets_id) bwipe! endfunc function Try_arg_non_zero(expr, false_val, true_val) for v in ['v:false', '0', '[1]', '{2:3}', '3.4'] let r = eval(substitute(a:expr, '%v%', v, '')) call assert_equal(a:false_val, r, 'result for ' . v . ' is not ' . a:false_val . ' but ' . r) endfor for v in ['v:true', '1', '" "', '"0"'] let r = eval(substitute(a:expr, '%v%', v, '')) call assert_equal(a:true_val, r, 'result for ' . v . ' is not ' . a:true_val . ' but ' . r) endfor endfunc " Test using non-zero-arg for an argument. func Test_non_zero_arg() call test_settime(93784) call Try_arg_non_zero("mode(%v%)", 'x', 'x!') call test_settime(0) call Try_arg_non_zero("shellescape('foo%', %v%)", "'foo%'", "'foo\\%'") " visualmode() needs to be called twice to check for v in [v:false, 0, [1], {2:3}, 3.4] normal vv let r = visualmode(v) call assert_equal('v', r, 'result for ' . string(v) . ' is not "v" but ' . r) let r = visualmode(v) call assert_equal('v', r, 'result for ' . string(v) . ' is not "v" but ' . r) endfor for v in [v:true, 1, " ", "0"] normal vv let r = visualmode(v) call assert_equal('v', r, 'result for ' . v . ' is not "v" but ' . r) let r = visualmode(v) call assert_equal('', r, 'result for ' . v . ' is not "" but ' . r) endfor endfunc " vim: shiftwidth=2 sts=2 expandtab