From 8dcc901522080c3ca7916fe819db8f9873a471b6 Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Mon, 17 Jul 2023 18:28:54 +0200
Subject: [PATCH] Log execvp() failures

Closes: https://github.com/cage-kiosk/cage/issues/255
---
 cage.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/cage.c b/cage.c
index bce4b651..75f06968 100644
--- a/cage.c
+++ b/cage.c
@@ -113,6 +113,8 @@ spawn_primary_client(struct wl_display *display, char *argv[], pid_t *pid_out, s
 		/* Close read, we only need write in the primary client process. */
 		close(fd[0]);
 		execvp(argv[0], argv);
+		/* execvp() returns only on failure */
+		wlr_log_errno(WLR_ERROR, "Failed to spawn client");
 		_exit(1);
 	} else if (pid == -1) {
 		wlr_log_errno(WLR_ERROR, "Unable to fork");