Mercurial > vim
view vimtutor.bat @ 34074:1629cc65d78d v9.1.0006
patch 9.1.0006: is*() and to*() function may be unsafe
Commit: https://github.com/vim/vim/commit/184f71cc6868a240dc872ed2852542bbc1d43e28
Author: Keith Thompson <Keith.S.Thompson@gmail.com>
Date: Thu Jan 4 21:19:04 2024 +0100
patch 9.1.0006: is*() and to*() function may be unsafe
Problem: is*() and to*() function may be unsafe
Solution: Add SAFE_* macros and start using those instead
(Keith Thompson)
Use SAFE_() macros for is*() and to*() functions
The standard is*() and to*() functions declared in <ctype.h> have
undefined behavior for negative arguments other than EOF. If plain char
is signed, passing an unchecked value from argv for from user input
to one of these functions has undefined behavior.
Solution: Add SAFE_*() macros that cast the argument to unsigned char.
Most implementations behave sanely for negative arguments, and most
character values in practice are non-negative, but it's still best
to avoid undefined behavior.
The change from #13347 has been omitted, as this has already been
separately fixed in commit ac709e2fc0db6d31abb7da96f743c40956b60c3a
(v9.0.2054)
fixes: #13332
closes: #13347
Signed-off-by: Keith Thompson <Keith.S.Thompson@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Thu, 04 Jan 2024 21:30:04 +0100 |
parents | 79aaaa134298 |
children |
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:: Start Vim on a copy of the tutor file. @echo off :: Usage: vimtutor [-console] [xx] :: :: -console means gvim will not be used :: xx is a language code like "es" or "nl". :: When an xx argument is given, it tries loading that tutor. :: When this fails or no xx argument was given, it tries using 'v:lang' :: When that also fails, it uses the English version. :: Use Vim to copy the tutor, it knows the value of $VIMRUNTIME FOR %%d in (. %TMP% %TEMP%) DO ( call :test_dir_writable "%~dpf0" %%d IF NOT ERRORLEVEL 1 GOTO dir_ok ) echo No working directory is found GOTO end :test_dir_writable SET TUTORCOPY=%2\$tutor$ COPY %1 %TUTORCOPY% >nul 2>nul GOTO end :dir_ok SET xx=%1 IF NOT .%1==.-console GOTO use_gui SHIFT SET xx=%1 GOTO use_vim :use_gui :: Try making a copy of tutor with gvim. If gvim cannot be found, try using :: vim instead. If vim cannot be found, alert user to check environment and :: installation. :: The script tutor.vim tells Vim which file to copy. start "dummy" /b /w "%~dp0gvim.exe" -u NONE -c "so $VIMRUNTIME/tutor/tutor.vim" IF ERRORLEVEL 1 GOTO use_vim :: Start gvim without any .vimrc, set 'nocompatible' start "dummy" /b /w "%~dp0gvim.exe" -u NONE -c "set nocp" %TUTORCOPY% GOTO end :use_vim :: The script tutor.vim tells Vim which file to copy call vim -u NONE -c "so $VIMRUNTIME/tutor/tutor.vim" IF ERRORLEVEL 1 GOTO no_executable :: Start vim without any .vimrc, set 'nocompatible' call vim -u NONE -c "set nocp" %TUTORCOPY% GOTO end :no_executable ECHO. ECHO. ECHO No vim or gvim found in current directory or PATH. ECHO Check your installation or re-run install.exe :end :: remove the copy of the tutor IF EXIST %TUTORCOPY% DEL %TUTORCOPY% SET xx=