artwork: fixed crash when showing album art in notification for untagged tracks (bug #1144)

1 files changed, 8 insertions, 3 deletions

diff --git a/plugins/artwork/artwork.c b/plugins/artwork/artwork.c
index a6c27172..e69c61e4 100644
--- a/plugins/artwork/artwork.c
+++ b/plugins/artwork/artwork.c
@@ -144,10 +144,15 @@ make_cache_dir_path (char *path, int size, const char *artist, int img_size) {
     char esc_artist[PATH_MAX];
     int i;
 
-    for (i = 0; artist[i]; i++) {
-        esc_artist[i] = esc_char (artist[i]);
+    if (artist) {
+        for (i = 0; artist[i]; i++) {
+            esc_artist[i] = esc_char (artist[i]);
+        }
+        esc_artist[i] = 0;
+    }
+    else {
+        strcpy (esc_artist, "Unknown artist");
     }
-    esc_artist[i] = 0;
 
     const char *cache = getenv ("XDG_CACHE_HOME");
     int sz;