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patch 9.1.1204: MS-Windows: crash when passing long string to expand()

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Problem:  MS-Windows: crash when passing long string to expand() with
          'wildignorecase'.
Solution: Use the same buflen as unix_expandpath() in dos_expandpath().
          Remove an unnecessary STRLEN() while at it (zeertzjq).

closes: #16896

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
zeertzjq
2025-03-15 09:53:32 +01:00
committed by Christian Brabandt
parent 96395e1512
commit 00a749bd90
4 changed files with 77 additions and 58 deletions
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7
src/testdir/test_expand_func.vim
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@@ -141,4 +141,11 @@ func Test_expand_wildignore()
set wildignore&
endfunc
" Passing a long string to expand with 'wildignorecase' should not crash Vim.
func Test_expand_long_str()
set wildignorecase
call expand('a'->repeat(99999))
set wildignorecase&
endfunc
" vim: shiftwidth=2 sts=2 expandtab