diff -r c517502d3e38 -r 4e3769d4e782 dav/db.c
--- a/dav/db.c	Thu Sep 07 18:18:30 2017 +0200
+++ b/dav/db.c	Thu Sep 07 18:42:51 2017 +0200
@@ -152,7 +152,13 @@
                     break;
                 }
                 case 3: {
-                    res->size = atoi((char*)value);
+                    res->size = 0;
+                    int64_t filelen = 0;
+                    if(util_strtoint((char*)value, &filelen)) {
+                        if(filelen > 0) {
+                            res->size = (size_t)filelen;
+                        }
+                    }
                     break;
                 }
             }