Patch 8.2.4074

[Bram Moolenaar]

Patch 8.2.4074
Problem: Going over the end of NameBuff.
Solution: Check length when appending a space.
Files: src/drawscreen.c, src/testdir/test_edit.vim


*** ../vim-8.2.4073/src/drawscreen.c 2021-12-13 21:59:04.895993159 +0000
--- src/drawscreen.c 2022-01-13 13:06:19.684076974 +0000
***************
*** 462,473 ****
p = NameBuff;
len = (int)STRLEN(p);

! if (bt_help(wp->w_buffer)
#ifdef FEAT_QUICKFIX
! || wp->w_p_pvw
#endif
! || bufIsChanged(wp->w_buffer)
! || wp->w_buffer->b_p_ro)
*(p + len++) = ' ';
if (bt_help(wp->w_buffer))
{
--- 462,474 ----
p = NameBuff;
len = (int)STRLEN(p);

! if ((bt_help(wp->w_buffer)
#ifdef FEAT_QUICKFIX
! || wp->w_p_pvw
#endif
! || bufIsChanged(wp->w_buffer)
! || wp->w_buffer->b_p_ro)
! && len < MAXPATHL - 1)
*(p + len++) = ' ';
if (bt_help(wp->w_buffer))
{
*** ../vim-8.2.4073/src/testdir/test_edit.vim 2022-01-03 11:03:42.538752401 +0000
--- src/testdir/test_edit.vim 2022-01-13 13:03:54.248250718 +0000
***************
*** 2103,2107 ****
--- 2103,2122 ----
bwipe!
endfunc

+ " Weird long file name was going over the end of NameBuff
+ func Test_edit_overlong_file_name()
+ CheckUnix
+
+ file 0000000000000000000000000000
+ file %%%%%%%%%%%%%%%%%%%%%%%%%%
+ file %%%%%%
+ set readonly
+ set ls=2
+
+ redraw!
+ set noreadonly ls&
+ bwipe!
+ endfunc
+

" vim: shiftwidth=2 sts=2 expandtab
*** ../vim-8.2.4073/src/version.c 2022-01-13 12:05:03.489321507 +0000
--- src/version.c 2022-01-13 13:06:12.508087055 +0000
***************
*** 752,753 ****
--- 752,755 ----
{ /* Add new patch number below this line */
+ /**/
+ 4074,
/**/

--
You cannot propel yourself forward by patting yourself on the back.

/// Bram Moolenaar -- Br...@Moolenaar.net -- http://www.Moolenaar.net \\\
/// \\\
\\\ sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ ///
\\\ help me help AIDS victims -- http://ICCF-Holland.org ///