From: Timo Sirainen <timo.sirainen@open-xchange.com>
Date: Fri, 31 Dec 2021 09:28:09 +0000 (+0200)
Subject: lib: Fix assert-crash when using only non-delayed signals
X-Git-Tag: 2.4.0~4654
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a812e1026e13f79146d44f6b929cfb7d7508c907;p=thirdparty%2Fdovecot%2Fcore.git

lib: Fix assert-crash when using only non-delayed signals

Fixes:
Panic: file lib-signals.c: line 190 (lib_signals_init_io): assertion failed: (sig_pipe_fd[0] != -1)
---

diff --git a/src/lib/lib-signals.c b/src/lib/lib-signals.c
index 6ac657a045..40fab80de7 100644
--- a/src/lib/lib-signals.c
+++ b/src/lib/lib-signals.c
@@ -187,7 +187,10 @@ lib_signals_ioloop_find(struct ioloop *ioloop)
 
 static void lib_signals_init_io(struct signal_ioloop *l)
 {
-	i_assert(sig_pipe_fd[0] != -1);
+	if (sig_pipe_fd[0] == -1) {
+		/* no delayed signals */
+		return;
+	}
 
 	l->io = io_add_to(l->ioloop, sig_pipe_fd[0], IO_READ, signal_read, NULL);
 	io_set_never_wait_alone(l->io, signals_expected == 0);