diff options
| -rw-r--r-- | shell/hush.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/shell/hush.c b/shell/hush.c index 89a13fe..bb95d63 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -1456,13 +1456,15 @@ static void record_pending_signo(int sig) static void sigexit(int sig) NORETURN; static void sigexit(int sig) { - /* Disable all signals: job control, SIGPIPE, etc. */ - sigprocmask_allsigs(SIG_BLOCK); - /* Careful: we can end up here after [v]fork. Do not restore * tty pgrp then, only top-level shell process does that */ - if (G_saved_tty_pgrp && getpid() == G.root_pid) + if (G_saved_tty_pgrp && getpid() == G.root_pid) { + /* Disable all signals: job control, SIGPIPE, etc. + * Mostly paranoid measure, to prevent infinite SIGTTOU. + */ + sigprocmask_allsigs(SIG_BLOCK); tcsetpgrp(G_interactive_fd, G_saved_tty_pgrp); + } /* Not a signal, just exit */ if (sig <= 0) |