diff options
Diffstat (limited to 'src/nvim/ex_cmds.c')
| -rw-r--r-- | src/nvim/ex_cmds.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/nvim/ex_cmds.c b/src/nvim/ex_cmds.c index fd1e34803f..49bf9972b1 100644 --- a/src/nvim/ex_cmds.c +++ b/src/nvim/ex_cmds.c @@ -814,7 +814,11 @@ void ex_retab(exarg_T *eap) // len is actual number of white characters used len = num_spaces + num_tabs; old_len = (long)STRLEN(ptr); - long new_len = old_len - col + start_col + len + 1; + const long new_len = old_len - col + start_col + len + 1; + if (new_len <= 0 || new_len >= MAXCOL) { + emsg(_(e_resulting_text_too_long)); + break; + } new_line = xmalloc(new_len); if (start_col > 0) { @@ -847,6 +851,10 @@ void ex_retab(exarg_T *eap) break; } vcol += win_chartabsize(curwin, ptr + col, (colnr_T)vcol); + if (vcol >= MAXCOL) { + emsg(_(e_resulting_text_too_long)); + break; + } col += utfc_ptr2len(ptr + col); } if (new_line == NULL) { // out of memory |