Mercurial > vim
view runtime/indent/eiffel.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 | d0a20101ecb2 |
children |
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" Vim indent file " Language: Eiffel " Maintainer: Jocelyn Fiat <jfiat@eiffel.com> " Previous-Maintainer: David Clarke <gadicath@dishevelled.net> " Contributions from: Takuya Fujiwara " Contributions from: Thilo Six " $Date: 2017/03/08 06:00:00 $ " $Revision: 1.4 $ " URL: https://github.com/eiffelhub/vim-eiffel " Only load this indent file when no other was loaded. if exists("b:did_indent") finish endif let b:did_indent = 1 setlocal indentexpr=GetEiffelIndent() setlocal nolisp setlocal nosmartindent setlocal nocindent setlocal autoindent setlocal comments=:-- setlocal indentkeys+==end,=else,=ensure,=require,=check,=loop,=until setlocal indentkeys+==creation,=feature,=inherit,=class,=is,=redefine,=rename,=variant setlocal indentkeys+==invariant,=do,=local,=export let b:undo_indent = "setl smartindent< indentkeys< indentexpr< autoindent< comments< " " Define some stuff " keywords grouped by indenting let s:trust_user_indent = '\(+\)\(\s*\(--\).*\)\=$' let s:relative_indent = '^\s*\(deferred\|class\|feature\|creation\|inherit\|loop\|from\|across\|until\|if\|else\|elseif\|ensure\|require\|check\|do\|local\|invariant\|variant\|rename\|redefine\|do\|export\)\>' let s:outdent = '^\s*\(else\|invariant\|variant\|do\|require\|until\|loop\|local\)\>' let s:no_indent = '^\s*\(class\|feature\|creation\|inherit\)\>' let s:single_dent = '^[^-]\+[[:alnum:]]\+ is\(\s*\(--\).*\)\=$' let s:inheritance_dent = '\s*\(redefine\|rename\|export\)\>' " Only define the function once. if exists("*GetEiffelIndent") finish endif let s:keepcpo= &cpo set cpo&vim function GetEiffelIndent() " Eiffel Class indenting " " Find a non-blank line above the current line. let lnum = prevnonblank(v:lnum - 1) " At the start of the file use zero indent. if lnum == 0 return 0 endif " trust the user's indenting if getline(lnum) =~ s:trust_user_indent return -1 endif " Add a 'shiftwidth' after lines that start with an indent word let ind = indent(lnum) if getline(lnum) =~ s:relative_indent let ind = ind + shiftwidth() endif " Indent to single indent if getline(v:lnum) =~ s:single_dent && getline(v:lnum) !~ s:relative_indent \ && getline(v:lnum) !~ '\s*\<\(and\|or\|implies\)\>' let ind = shiftwidth() endif " Indent to double indent if getline(v:lnum) =~ s:inheritance_dent let ind = 2 * shiftwidth() endif " Indent line after the first line of the function definition if getline(lnum) =~ s:single_dent let ind = ind + shiftwidth() endif " The following should always be at the start of a line, no indenting if getline(v:lnum) =~ s:no_indent let ind = 0 endif " Subtract a 'shiftwidth', if this isn't the first thing after the 'is' " or first thing after the 'do' if getline(v:lnum) =~ s:outdent && getline(v:lnum - 1) !~ s:single_dent \ && getline(v:lnum - 1) !~ '^\s*do\>' let ind = ind - shiftwidth() endif " Subtract a shiftwidth for end statements if getline(v:lnum) =~ '^\s*end\>' let ind = ind - shiftwidth() endif " set indent of zero end statements that are at an indent of 3, this should " only ever be the class's end. if getline(v:lnum) =~ '^\s*end\>' && ind == shiftwidth() let ind = 0 endif return ind endfunction let &cpo = s:keepcpo unlet s:keepcpo " vim:sw=2