lib: ensure vty buf is nul terminated and wrap puts to it with checks
* vty.c: Fix str* overruns in previous commit, which I reported to the
author. Add bit more checking of updates to vty buffer.
Swap VTY_BUFSIZ over to vty->max, as that should be the external API.
* vty.c: (vty_buf_assert) conditions that should always be assertable for
vty buffer.
(vty_buf_put) little wrapper to check char puts to vty input buffer,
and unconditionally write nul at very end of buffer as guard.
Won't always work, as some places use mem* to manipulate.
(vty_self_insert{,_overwrite}) Length check needs to leave room for nul.
Use vty_buf_put.
(vty_insert_word_overwrite) Length check needs to leave room for nul.
(*) Add vty_buf_assert calls.
Merging in fixes from Quentin Young <qlyoung@cumulusnetworks.com>
1 file changed