don't allow zero length unit names

diff --git a/unit.c b/unit.c
index e6e5574312161668f8b7133010cd815bc2267d85..e8d61c853c51529c3fb2b9c4f0917b833632bd73 100644 (file)
--- a/unit.c
+++ b/unit.c
@@ -62,6 +62,9 @@ bool unit_name_is_valid(const char *n) {
         if (!(e = strrchr(n, '.')))
                 return false;
 
         if (!(e = strrchr(n, '.')))
                 return false;
 

+        if (e == n)
+                return false;
+

         for (i = n; i < e; i++)
                 if (!strchr(VALID_CHARS, *i))
                         return false;
         for (i = n; i < e; i++)
                 if (!strchr(VALID_CHARS, *i))
                         return false;