Mercurial > vim
view runtime/doc/ft_ps1.txt @ 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 | 43593a5d873f |
| children |
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*ft_ps1.txt* A Windows PowerShell syntax plugin for Vim Author: Peter Provost <https://www.github.com/PProvost> License: Apache 2.0 URL: https://github.com/PProvost/vim-ps1 INTRODUCTION *ps1-syntax* This plugin provides Vim syntax, indent and filetype detection for Windows PowerShell scripts, modules, and XML configuration files. ABOUT *ps1-about* Grab the latest version or report a bug on GitHub: https://github.com/PProvost/vim-ps1 FOLDING *ps1-folding* The ps1 syntax file provides syntax folding (see |:syn-fold|) for script blocks and digital signatures in scripts. When 'foldmethod' is set to "syntax" then function script blocks will be folded unless you use the following in your .vimrc or before opening a script: > :let g:ps1_nofold_blocks = 1 < Digital signatures in scripts will also be folded unless you use: > :let g:ps1_nofold_sig = 1 < Note: syntax folding might slow down syntax highlighting significantly, especially for large files. COMPILER *ps1-compiler* The powershell `:compiler` script configures |:make| to execute the script in PowerShell. It tries to pick a smart default PowerShell command: `pwsh` if available and `powershell` otherwise, but you can customize the command: > :let g:ps1_makeprg_cmd = '/path/to/pwsh' < To configure whether to show the exception type information: > :let g:ps1_efm_show_error_categories = 1 < KEYWORD LOOKUP *ps1-keyword* To look up keywords using PowerShell's Get-Help, press the |K| key. For more convenient paging, the pager `less` should be installed, which is included in many Linux distributions and in macOS. Many other distributions are available for Windows like https://chocolatey.org/packages/less/. Make sure `less` is in a directory listed in the `PATH` environment variable, which chocolatey above does. ------------------------------------------------------------------------------ vim:ft=help: