commit - 1be2558a99f45bf2af156906cd98ba2a7a97198d
commit + 41ddc9d163020f85bddcaf4c7261ab2818848c59
blob - cbfad0c2c9d27720aba4fa7a24367a6269313fcf
blob + f720329485010ddde62758a78df4b9733cc80af0
--- control.c
+++ control.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: control.c,v 1.59 2024/11/21 13:10:49 claudio Exp $	*/
+/*	$OpenBSD: control.c,v 1.60 2024/11/21 13:16:07 claudio Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -239,7 +239,7 @@ control_dispatch_imsg(int fd, short event, void *arg)
 	}
 
 	if (event & EV_WRITE) {
-		if (imsg_write(&c->iev.ibuf) <= 0 && errno != EAGAIN) {
+		if (imsg_write(&c->iev.ibuf) == -1) {
 			control_close(fd, cs);
 			return;
 		}
blob - a458cd0a01dddd1da51cf4c24167f27b7d0de7d6
blob + 3424f878da5fdb8775af61c3f81ee02b1e45b260
--- proc.c
+++ proc.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: proc.c,v 1.47 2024/11/21 13:10:49 claudio Exp $	*/
+/*	$OpenBSD: proc.c,v 1.48 2024/11/21 13:16:07 claudio Exp $	*/
 
 /*
  * Copyright (c) 2010 - 2016 Reyk Floeter <reyk@openbsd.org>
@@ -612,13 +612,14 @@ proc_dispatch(int fd, short event, void *arg)
 	}
 
 	if (event & EV_WRITE) {
-		if ((n = imsg_write(ibuf)) == -1 && errno != EAGAIN)
+		if (imsg_write(ibuf) == -1) {
+			if (errno == EPIPE) {
+				/* this pipe is dead, remove the handler */
+				event_del(&iev->ev);
+				event_loopexit(NULL);
+				return;
+			}
 			fatal("%s: imsg_write", __func__);
-		if (n == 0) {
-			/* this pipe is dead, so remove the event handler */
-			event_del(&iev->ev);
-			event_loopexit(NULL);
-			return;
 		}
 	}