Mercurial > vim
view src/testdir/test_scrollbind.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 | d8fdafc4b390 |
| children |
line wrap: on
line source
" Test for 'scrollbind' causing an unexpected scroll of one of the windows. func Test_scrollbind() " We don't want the status line to cause problems: set laststatus=0 let totalLines = &lines * 20 let middle = totalLines / 2 new | only for i in range(1, totalLines) call setline(i, 'LINE ' . i) endfor exe string(middle) normal zt normal M aboveleft vert new for i in range(1, totalLines) call setline(i, 'line ' . i) endfor exe string(middle) normal zt normal M " Execute the following two commands at once to reproduce the problem. setl scb | wincmd p setl scb wincmd w let topLineLeft = line('w0') wincmd p let topLineRight = line('w0') setl noscrollbind wincmd p setl noscrollbind call assert_equal(0, topLineLeft - topLineRight) endfunc " Test for 'scrollbind' func Test_scrollbind_opt() new | only set noscrollbind set scrollopt=ver,jump scrolloff=2 nowrap noequalalways splitbelow " Insert the text used for the test append start of window 1 . line 01 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 01 . line 02 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 02 . line 03 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 03 . line 04 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 04 . line 05 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 05 . line 06 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 06 . line 07 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 07 . line 08 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 08 . line 09 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 09 . line 10 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 10 . line 11 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 11 . line 12 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 12 . line 13 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 13 . line 14 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 14 . line 15 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 15 end of window 1 start of window 2 . line 01 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 01 . line 02 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 02 . line 03 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 03 . line 04 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 04 . line 05 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 05 . line 06 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 06 . line 07 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 07 . line 08 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 08 . line 09 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 09 . line 10 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 10 . line 11 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 11 . line 12 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 12 . line 13 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 13 . line 14 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 14 . line 15 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 15 . line 16 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 16 end of window 2 . " Test using two windows open to one buffer, one extra empty window split new wincmd t resize 8 call search('^start of window 1$') normal zt set scrollbind wincmd j resize 7 call search('^start of window 2$') normal zt set scrollbind " -- start of tests -- " Test scrolling down normal L5jHyy wincmd b | normal pr0 wincmd t | normal Hyy wincmd b | normal pr1 wincmd t | normal L6jHyy wincmd b | normal pr2 wincmd k | normal Hyy wincmd b | normal pr3 " Test scrolling up wincmd t | normal H4k wincmd j | normal H wincmd t | normal Hyy wincmd b | normal pr4 wincmd k | normal Hyy wincmd b | normal pr5 wincmd k | normal 3k wincmd t | normal H wincmd j | normal Hyy wincmd b | normal pr6 wincmd t | normal Hyy wincmd b | normal pr7 " Test horizontal scrolling set scrollopt+=hor normal gg"zyyG"zpG wincmd t | normal 015zly$ wincmd b | normal p"zpG wincmd k | normal y$ wincmd b | normal p"zpG wincmd k | normal 10jH7zhg0y$ wincmd b | normal p"zpG wincmd t | normal Hg0y$ wincmd b | normal p"zpG set scrollopt-=hor wincmd b call assert_equal([ \ '', \ '0 line 05 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 05', \ '1 line 05 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 05', \ '2 line 11 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 11', \ '3 line 11 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 11', \ '4 line 06 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 06', \ '5 line 06 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 06', \ '6 line 02 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 02', \ '7 line 02 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 02', \ '56789ABCDEFGHIJKLMNOPQRSTUVWXYZ 02', \ 'UTSRQPONMLKJIHGREDCBA9876543210 02', \ '. line 11 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 11', \ '. line 11 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 11', \ ''], getline(1, '$')) enew! " ****** tests using two different buffers ***** wincmd t | wincmd j | close wincmd t | set noscrollbind /start of window 2$/,/^end of window 2$/y new wincmd t | wincmd j | normal 4"zpGp wincmd t call search('^start of window 1$') normal zt set scrollbind wincmd j call search('^start of window 2$') normal zt set scrollbind " -- start of tests -- " Test scrolling down normal L5jHyy wincmd b | normal pr0 wincmd t | normal Hyy wincmd b | normal pr1 wincmd t | normal L6jHyy wincmd b | normal pr2 wincmd k | normal Hyy wincmd b | normal pr3 " Test scrolling up wincmd t | normal H4k wincmd j | normal H wincmd t | normal Hyy wincmd b | normal pr4 wincmd k | normal Hyy wincmd b | normal pr5 wincmd k | normal 3k wincmd t | normal H wincmd j | normal Hyy wincmd b | normal pr6 wincmd t | normal Hyy wincmd b | normal pr7 " Test horizontal scrolling set scrollopt+=hor normal gg"zyyG"zpG wincmd t | normal 015zly$ wincmd b | normal p"zpG wincmd k | normal y$ wincmd b | normal p"zpG wincmd k | normal 10jH7zhg0y$ wincmd b | normal p"zpG wincmd t | normal Hg0y$ wincmd b | normal p"zpG set scrollopt-=hor wincmd b call assert_equal([ \ '', \ '0 line 05 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 05', \ '1 line 05 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 05', \ '2 line 11 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 11', \ '3 line 11 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 11', \ '4 line 06 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 06', \ '5 line 06 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 06', \ '6 line 02 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 02', \ '7 line 02 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 02', \ '56789ABCDEFGHIJKLMNOPQRSTUVWXYZ 02', \ 'UTSRQPONMLKJIHGREDCBA9876543210 02', \ '. line 10 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 10', \ '. line 10 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 10', \ ''], getline(1, '$')) enew! " Test 'syncbind' wincmd t | set noscrollbind | normal ggL wincmd j | set noscrollbind | normal ggL set scrollbind wincmd t | set scrollbind | normal G wincmd j | normal G syncbind normal Hk wincmd t | normal H wincmd j | normal Hyy wincmd b | normal p wincmd t | normal yy wincmd b | normal p wincmd t | set noscrollbind | normal ggL wincmd j | set noscrollbind normal ggL set scrollbind wincmd t | set scrollbind wincmd t | normal G wincmd j | normal G wincmd t | syncbind | normal Hk wincmd j | normal H wincmd t | normal Hyy wincmd b | normal p wincmd t | wincmd j | normal yy wincmd b | normal p wincmd t | normal H3k wincmd j | normal H wincmd t | normal Hyy wincmd b | normal p wincmd t | wincmd j | normal yy wincmd b | normal p wincmd b call assert_equal([ \ '', \ '. line 16 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 16', \ 'start of window 2', \ 'start of window 2', \ '. line 16 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 16', \ '. line 15 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 15', \ '. line 12 ZYXWVUTSRQPONMLKJIHGREDCBA9876543210 12', \ ], getline(1, '$')) enew! new | only! set scrollbind& scrollopt& scrolloff& wrap& equalalways& splitbelow& endfunc " vim: shiftwidth=2 sts=2 expandtab