diff -Naur mtree-2.7.cvs/usr.sbin/mtree/create.c mtree-2.7.cvs.new/usr.sbin/mtree/create.c
--- mtree-2.7.cvs/usr.sbin/mtree/create.c	2002-06-28 16:24:31 +0400
+++ mtree-2.7.cvs.new/usr.sbin/mtree/create.c	2002-06-28 16:26:18 +0400
@@ -86,6 +86,28 @@
 static int	statd(FTS *, FTSENT *, uid_t *, gid_t *, mode_t *);
 static void	statf(int, FTSENT *);
 
+char *my_getlogin(){
+    const char *s=getlogin();
+    if (s && *s){
+	return s;
+    }else{
+	struct passwd *p=getpwuid(geteuid());
+	char *ss;
+	if (p && p->pw_name){
+	    if (asprintf(&ss,"(no controlling terminal) %s",p->pw_name)<0){
+		perror("asprintf");
+		return NULL;
+	    }
+	}else{
+	    if (asprintf(&ss,"(no controlling terminal) #%d",geteuid())<0){
+		perror("asprintf");
+		return NULL;
+	    }
+	}
+	return ss;
+    }
+}
+
 void
 cwalk()
 {
@@ -99,7 +121,7 @@
 	(void)gethostname(host, sizeof(host));
 	(void)printf(
 	    "#\t   user: %s\n#\tmachine: %s\n#\t   tree: %s\n#\t   date: %s",
-	    getlogin(), host, fullpath, ctime(&clock));
+	    my_getlogin(), host, fullpath, ctime(&clock));
 
 	argv[0] = ".";
 	argv[1] = NULL;