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authorKunMing Xie <qqzz014@gmail.com>2018-03-22 14:34:42 +0800
committerJustin M. Keyes <justinkz@gmail.com>2018-03-22 07:34:42 +0100
commitce3bc12e25f19d29c74e53a8a7f92079b1ccfcbf (patch)
treeee27bde441cab365dd409f4bc76d1b9021aedfc0
parent535bf89597ab142bca9fed33c4ccce8d326e5601 (diff)
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vim-patch:8.0.0357: crash when setting 'guicursor' to weird value (#8161)
Problem: Crash when setting 'guicursor' to weird value. Solution: Avoid negative size. (Dominique Pelle, closes vim/vim#1465) https://github.com/vim/vim/commit/24922ec23360e7ea7c5a803c9edf476bb6395b32
-rw-r--r--src/nvim/cursor_shape.c9
-rw-r--r--src/nvim/testdir/test_options.vim9
2 files changed, 14 insertions, 4 deletions
diff --git a/src/nvim/cursor_shape.c b/src/nvim/cursor_shape.c
index 97fc3a3ca3..b45e7002f7 100644
--- a/src/nvim/cursor_shape.c
+++ b/src/nvim/cursor_shape.c
@@ -102,11 +102,14 @@ char_u *parse_shape_opt(int what)
}
while (*modep != NUL) {
colonp = vim_strchr(modep, ':');
- if (colonp == NULL)
+ commap = vim_strchr(modep, ',');
+
+ if (colonp == NULL || (commap != NULL && commap < colonp)) {
return (char_u *)N_("E545: Missing colon");
- if (colonp == modep)
+ }
+ if (colonp == modep) {
return (char_u *)N_("E546: Illegal mode");
- commap = vim_strchr(modep, ',');
+ }
// Repeat for all modes before the colon.
// For the 'a' mode, we loop to handle all the modes.
diff --git a/src/nvim/testdir/test_options.vim b/src/nvim/testdir/test_options.vim
index 3c1b0050b5..a15d15213a 100644
--- a/src/nvim/testdir/test_options.vim
+++ b/src/nvim/testdir/test_options.vim
@@ -209,7 +209,14 @@ func Test_set_errors()
call assert_fails('set statusline=%{', 'E540:')
call assert_fails('set statusline=' . repeat("%p", 81), 'E541:')
call assert_fails('set statusline=%(', 'E542:')
- call assert_fails('set guicursor=x', 'E545:')
+ if has('cursorshape')
+ " This invalid value for 'guicursor' used to cause Vim to crash.
+ call assert_fails('set guicursor=i-ci,r-cr:h', 'E545:')
+ call assert_fails('set guicursor=i-ci', 'E545:')
+ call assert_fails('set guicursor=x', 'E545:')
+ call assert_fails('set guicursor=r-cr:horx', 'E548:')
+ call assert_fails('set guicursor=r-cr:hor0', 'E549:')
+ endif
call assert_fails('set backupext=~ patchmode=~', 'E589:')
call assert_fails('set winminheight=10 winheight=9', 'E591:')
call assert_fails('set winminwidth=10 winwidth=9', 'E592:')