Mercurial > vim
view src/testdir/test_largefile.vim @ 33774:f2dd85a2bfc0 v9.0.2107
patch 9.0.2107: [security]: FPE in adjust_plines_for_skipcol
Commit: https://github.com/vim/vim/commit/cb0b99f0672d8446585d26e998343dceca17d1ce
Author: Christian Brabandt <cb@256bit.org>
Date: Tue Nov 14 20:05:59 2023 +0100
patch 9.0.2107: [security]: FPE in adjust_plines_for_skipcol
Problem: [security]: FPE in adjust_plines_for_skipcol
Solution: don't divide by zero, return zero
Prevent a floating point exception when calculating w_skipcol (which can
happen with a small window when the number option is set and cpo+=n).
Add a test to verify
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Thu, 16 Nov 2023 22:15:08 +0100 |
parents | 08940efa6b4e |
children |
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" Tests for large files " This is only executed manually: "make test_largefile". " This is not run as part of "make test". func Test_largefile() let fname = 'Xlarge.txt' call delete(fname) exe "e" fname " Make sure that a line break is 1 byte (LF). set ff=unix set undolevels=-1 " Input 99 'A's. The line becomes 100 bytes including a line break. exe "normal 99iA\<Esc>" yank " Put 39,999,999 times. The file becomes 4,000,000,000 bytes. normal 39999999p " Moving around in the file randomly. normal G normal 10% normal 90% normal 50% normal gg w " Check if the file size is 4,000,000,000 bytes. let fsize=getfsize(fname) call assert_true(fsize == 4000000000) call delete(fname) endfunc " vim: shiftwidth=2 sts=2 expandtab