Mercurial > vim

comparison src/misc2.c @ 28893:aa44d5842d6c v8.2.4969

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
patch 8.2.4969: changing text in Visual mode may cause invalid memory access Commit: https://github.com/vim/vim/commit/7ce5b2b590256ce53d6af28c1d203fb3bc1d2d97 Author: Bram Moolenaar <Bram@vim.org> Date: Mon May 16 19:40:59 2022 +0100 patch 8.2.4969: changing text in Visual mode may cause invalid memory access Problem: Changing text in Visual mode may cause invalid memory access. Solution: Check the Visual position after making a change.
author Bram Moolenaar <Bram@vim.org>
date Mon, 16 May 2022 20:45:03 +0200
parents d0241e74bfdb
children 057c26b5c33a
comparison
equal deleted inserted replaced
28892:4df932719c00 28893:aa44d5842d6c
618 void 618 void
619 check_cursor(void) 619 check_cursor(void)
620 { 620 {
621 check_cursor_lnum(); 621 check_cursor_lnum();
622 check_cursor_col(); 622 check_cursor_col();
623 }
624
625 /*
626 * Check if VIsual position is valid, correct it if not.
627 * Can be called when in Visual mode and a change has been made.
628 */
629 void
630 check_visual_pos(void)
631 {
632 if (VIsual.lnum > curbuf->b_ml.ml_line_count)
633 {
634 VIsual.lnum = curbuf->b_ml.ml_line_count;
635 VIsual.col = 0;
636 VIsual.coladd = 0;
637 }
638 else
639 {
640 int len = (int)STRLEN(ml_get(VIsual.lnum));
641
642 if (VIsual.col > len)
643 {
644 VIsual.col = len;
645 VIsual.coladd = 0;
646 }
647 }
623 } 648 }
624 649
625 #if defined(FEAT_TEXTOBJ) || defined(PROTO) 650 #if defined(FEAT_TEXTOBJ) || defined(PROTO)
626 /* 651 /*
627 * Make sure curwin->w_cursor is not on the NUL at the end of the line. 652 * Make sure curwin->w_cursor is not on the NUL at the end of the line.
2414 else 2439 else
2415 vim_strncpy(buf, username, len - 1); 2440 vim_strncpy(buf, username, len - 1);
2416 return OK; 2441 return OK;
2417 } 2442 }
2418 2443
2419 #if defined(EXITFREE) || defined(PROTOS) 2444 #if defined(EXITFREE) || defined(PROTO)
2420 /* 2445 /*
2421 * Free the memory allocated by get_user_name() 2446 * Free the memory allocated by get_user_name()
2422 */ 2447 */
2423 void 2448 void
2424 free_username(void) 2449 free_username(void)