From f896f12967086cde054d02a0e5b4af1eb8eeb898 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Sat, 13 Feb 2021 10:48:31 +0100
Subject: [PATCH] main: -D,--working-directory: check path exists and is a
 directory

---
 main.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/main.c b/main.c
index 2b9d3186..87f7a058 100644
--- a/main.c
+++ b/main.c
@@ -236,9 +236,15 @@ main(int argc, char *const *argv)
             conf_app_id = optarg;
             break;
 
-        case 'D':
+        case 'D': {
+            struct stat st;
+            if (stat(optarg, &st) < 0 || !(st.st_mode & S_IFDIR)) {
+                fprintf(stderr, "error: %s: not a directory\n", optarg);
+                return EXIT_FAILURE;
+            }
             custom_cwd = optarg;
             break;
+        }
 
         case 'f':
             tll_free_and_free(conf_fonts, free);