Mercurial > vim
view runtime/mswin.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 | 4027cefc2aab |
children | 1d0b21fc9df1 |
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" Set options and add mapping such that Vim behaves a lot like MS-Windows " " Maintainer: The Vim Project <https://github.com/vim/vim> " Last Change: 2023 Aug 10 " Former Maintainer: Bram Moolenaar <Bram@vim.org> " Bail out if this isn't wanted. if exists("g:skip_loading_mswin") && g:skip_loading_mswin finish endif " set the 'cpoptions' to its Vim default if 1 " only do this when compiled with expression evaluation let s:save_cpo = &cpoptions endif set cpo&vim " set 'selection', 'selectmode', 'mousemodel' and 'keymodel' for MS-Windows behave mswin " backspace and cursor keys wrap to previous/next line set backspace=indent,eol,start whichwrap+=<,>,[,] " backspace in Visual mode deletes selection vnoremap <BS> d if has("clipboard") " CTRL-X and SHIFT-Del are Cut vnoremap <C-X> "+x vnoremap <S-Del> "+x " CTRL-C and CTRL-Insert are Copy vnoremap <C-C> "+y vnoremap <C-Insert> "+y " CTRL-V and SHIFT-Insert are Paste map <C-V> "+gP map <S-Insert> "+gP cmap <C-V> <C-R>+ cmap <S-Insert> <C-R>+ endif " Pasting blockwise and linewise selections is not possible in Insert and " Visual mode without the +virtualedit feature. They are pasted as if they " were characterwise instead. " Uses the paste.vim autoload script. " Use CTRL-G u to have CTRL-Z only undo the paste. if 1 exe 'inoremap <script> <C-V> <C-G>u' . paste#paste_cmd['i'] exe 'vnoremap <script> <C-V> ' . paste#paste_cmd['v'] endif imap <S-Insert> <C-V> vmap <S-Insert> <C-V> " Use CTRL-Q to do what CTRL-V used to do noremap <C-Q> <C-V> " Use CTRL-S for saving, also in Insert mode (<C-O> doesn't work well when " using completions). noremap <C-S> :update<CR> vnoremap <C-S> <C-C>:update<CR> inoremap <C-S> <Esc>:update<CR>gi " For CTRL-V to work autoselect must be off. " On Unix we have two selections, autoselect can be used. if !has("unix") set guioptions-=a endif " CTRL-Z is Undo; not in cmdline though noremap <C-Z> u inoremap <C-Z> <C-O>u " CTRL-Y is Redo (although not repeat); not in cmdline though noremap <C-Y> <C-R> inoremap <C-Y> <C-O><C-R> " Alt-Space is System menu if has("gui") noremap <M-Space> :simalt ~<CR> inoremap <M-Space> <C-O>:simalt ~<CR> cnoremap <M-Space> <C-C>:simalt ~<CR> endif " CTRL-A is Select all noremap <C-A> gggH<C-O>G inoremap <C-A> <C-O>gg<C-O>gH<C-O>G cnoremap <C-A> <C-C>gggH<C-O>G onoremap <C-A> <C-C>gggH<C-O>G snoremap <C-A> <C-C>gggH<C-O>G xnoremap <C-A> <C-C>ggVG " CTRL-Tab is Next window noremap <C-Tab> <C-W>w inoremap <C-Tab> <C-O><C-W>w cnoremap <C-Tab> <C-C><C-W>w onoremap <C-Tab> <C-C><C-W>w " CTRL-F4 is Close window noremap <C-F4> <C-W>c inoremap <C-F4> <C-O><C-W>c cnoremap <C-F4> <C-C><C-W>c onoremap <C-F4> <C-C><C-W>c if has("gui") " CTRL-F is the search dialog noremap <expr> <C-F> has("gui_running") ? ":promptfind\<CR>" : "/" inoremap <expr> <C-F> has("gui_running") ? "\<C-\>\<C-O>:promptfind\<CR>" : "\<C-\>\<C-O>/" cnoremap <expr> <C-F> has("gui_running") ? "\<C-\>\<C-C>:promptfind\<CR>" : "\<C-\>\<C-O>/" " CTRL-H is the replace dialog, " but in console, it might be backspace, so don't map it there nnoremap <expr> <C-H> has("gui_running") ? ":promptrepl\<CR>" : "\<C-H>" inoremap <expr> <C-H> has("gui_running") ? "\<C-\>\<C-O>:promptrepl\<CR>" : "\<C-H>" cnoremap <expr> <C-H> has("gui_running") ? "\<C-\>\<C-C>:promptrepl\<CR>" : "\<C-H>" endif " restore 'cpoptions' set cpo& if 1 let &cpoptions = s:save_cpo unlet s:save_cpo endif