Mercurial > vim
view src/testdir/test_cjk_linebreak.vim @ 35150:42f061099b39 v9.1.0404
patch 9.1.0404: [security] xxd: buffer-overflow with specific flags
Commit: https://github.com/vim/vim/commit/67797191e039196128c69ba1538ccaf2a4711323
Author: Lennard Hofmann <lennard.hofmann@web.de>
Date: Fri May 10 14:17:26 2024 +0200
patch 9.1.0404: [security] xxd: buffer-overflow with specific flags
Problem: [security] xxd: buffer-overflow with specific flags
Solution: Correctly calculate the required buffer space
(Lennard Hofmann)
xxd writes each output line into a global buffer before printing.
The maximum size of that buffer was not calculated correctly.
This command was crashing in AddressSanitizer:
$ xxd -Ralways -g1 -c256 -d -o 9223372036854775808 /etc/passwd
This prints a line of 6680 bytes but the buffer only had room for 6549 bytes.
If the output from "-b" was colored, the line could be even longer.
closes: #14738
Co-authored-by: K.Takata <kentkt@csc.jp>
Signed-off-by: Lennard Hofmann <lennard.hofmann@web.de>
Signed-off-by: Christian Brabandt <cb@256bit.org>
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Fri, 10 May 2024 14:45:03 +0200 |
| parents | 08940efa6b4e |
| children |
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" Test for CJK linebreak scriptencoding utf-8 func Run_cjk_linebreak_after(rigorous) set textwidth=12 for punct in [ \ '!', '%', ')', ',', ':', ';', '>', '?', ']', '}', '’', '”', '†', '‡', \ '…', '‰', '‱', '‼', '⁇', '⁈', '⁉', '℃', '℉', '、', '。', '〉', '》', \ '」', '』', '】', '〕', '〗', '〙', '〛', '！', '）', '，', '．', '：', \ '；', '？', '］', '｝'] call setline('.', '这是一个测试' .. punct.'试试 CJK 行禁则补丁。') normal gqq if a:rigorous call assert_equal('这是一个测', getline(1)) else call assert_equal('这是一个测试' .. punct, getline(1)) endif %d_ endfor endfunc func Test_cjk_linebreak_after() set formatoptions=croqn2mB1j call Run_cjk_linebreak_after(0) endfunc func Test_cjk_linebreak_after_rigorous() set formatoptions=croqn2mB1j] call Run_cjk_linebreak_after(1) endfunc func Run_cjk_linebreak_before() set textwidth=12 for punct in [ \ '(', '<', '[', '`', '{', '‘', '“', '〈', '《', '「', '『', '【', '〔', \ '〖', '〘', '〚', '（', '［', '｛'] call setline('.', '这是个测试' .. punct.'试试 CJK 行禁则补丁。') normal gqq call assert_equal('这是个测试', getline(1)) %d_ endfor endfunc func Test_cjk_linebreak_before() set formatoptions=croqn2mB1j call Run_cjk_linebreak_before() endfunc func Test_cjk_linebreak_before_rigorous() set formatoptions=croqn2mB1j] call Run_cjk_linebreak_before() endfunc func Run_cjk_linebreak_nobetween(rigorous) " …… must not start a line call setline('.', '这是个测试……试试 CJK 行禁则补丁。') set textwidth=12 ambiwidth=double normal gqq if a:rigorous call assert_equal('这是个测', getline(1)) else call assert_equal('这是个测试……', getline(1)) endif %d_ call setline('.', '这是一个测试……试试 CJK 行禁则补丁。') set textwidth=12 ambiwidth=double normal gqq call assert_equal('这是一个测', getline(1)) %d_ " but —— can call setline('.', '这是个测试——试试 CJK 行禁则补丁。') set textwidth=12 ambiwidth=double normal gqq call assert_equal('这是个测试', getline(1)) endfunc func Test_cjk_linebreak_nobetween() set formatoptions=croqn2mB1j call Run_cjk_linebreak_nobetween(0) endfunc func Test_cjk_linebreak_nobetween_rigorous() set formatoptions=croqn2mB1j] call Run_cjk_linebreak_nobetween(1) endfunc func Test_cjk_linebreak_join_punct() for punct in ['——', '〗', '，', '。', '……'] call setline(1, '文本文本' .. punct) call setline(2, 'English') set formatoptions=croqn2mB1j normal ggJ call assert_equal('文本文本' .. punct.'English', getline(1)) %d_ endfor endfunc " vim: shiftwidth=2 sts=2 expandtab