diff -Naur busybox-1.13.3/libbb/safe_gethostname.c busybox-1.13.3.mod/libbb/safe_gethostname.c
--- busybox-1.13.3/libbb/safe_gethostname.c	2009-02-26 12:47:08.000000000 +0100
+++ busybox-1.13.3.mod/libbb/safe_gethostname.c	2009-05-14 18:04:09.000000000 +0200
@@ -59,8 +59,12 @@
  */
 char* FAST_FUNC safe_getdomainname(void)
 {
+#ifndef HAVE_NO_UTSNAME_DOMAINNAME
 	struct utsname uts;
 
 	uname(&uts);
 	return xstrndup(!uts.domainname[0] ? "?" : uts.domainname, sizeof(uts.domainname));
+#else
+	return xstrdup("?");
+#endif
 }