diff options
| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2022-08-22 01:19:45 +0200 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2022-08-22 01:19:45 +0200 |
| commit | 4f653341476e7bd81475ea29316d59254d8b957e (patch) | |
| tree | 5777da5f219c46bf21d7733f1ba3187fd5412cb7 /term | |
| parent | b1a00127663a9220d10febaaf48351f9f907ea80 (diff) | |
| download | hurd-4f653341476e7bd81475ea29316d59254d8b957e.tar.gz hurd-4f653341476e7bd81475ea29316d59254d8b957e.tar.bz2 hurd-4f653341476e7bd81475ea29316d59254d8b957e.zip | |
term: Prevent new master while some slaves are still there
The previous master may have gone before all previous slaves have gone. If a
slave gets stuck, TTY_OPEN will kept set, and there would be no reset performed
in open_hook, thus leaking tty state and data.
Diffstat (limited to 'term')
| -rw-r--r-- | term/ptyio.c | 2 | ||||
| -rw-r--r-- | term/term.h | 2 |
2 files changed, 3 insertions, 1 deletions
diff --git a/term/ptyio.c b/term/ptyio.c index fadddc16..928ae0ac 100644 --- a/term/ptyio.c +++ b/term/ptyio.c @@ -72,7 +72,7 @@ pty_open_hook (struct trivfs_control *cntl, pthread_mutex_lock (&global_lock); - if (ptyopen) + if (ptyopen || nperopens) { pthread_mutex_unlock (&global_lock); return EBUSY; diff --git a/term/term.h b/term/term.h index 162ed49d..efe27ffa 100644 --- a/term/term.h +++ b/term/term.h @@ -31,6 +31,8 @@ #include <features.h> #include <hurd/hurd_types.h> +extern int nperopens; + #ifdef TERM_DEFINE_EI #define TERM_EI #else |