From 7bfb0b9b5f6123a0feff6d624fc0a5f7bd750463 Mon Sep 17 00:00:00 2001
From: Benedikt Heine <bebe@bebehei.de>
Date: Sun, 14 Jan 2018 00:31:20 +0100
Subject: [PATCH] Handle execvp error when opening dmenu

The execvp function usually doesn't return and exits by itself. But,
when having an error, it returns. A faulty dmenu setting could trigger
this and stop dunst receiving signals.
---
 src/menu.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/menu.c b/src/menu.c
index 0af694c..4e2389d 100644
--- a/src/menu.c
+++ b/src/menu.c
@@ -243,6 +243,10 @@ void context_menu(void)
                         exit(EXIT_FAILURE);
                 }
                 execvp(settings.dmenu_cmd[0], settings.dmenu_cmd);
+                fprintf(stderr, "Warning: failed to execute '%s': %s\n",
+                                settings.dmenu,
+                                strerror(errno));
+                exit(EXIT_FAILURE);
         } else {
                 close(child_io[0]);
                 close(parent_io[1]);