--- a/main.c	Fri Sep 14 22:23:04 2007 +0200
+++ b/main.c	Fri Sep 14 22:26:58 2007 +0200
@@ -1,3 +1,9 @@
+/*
+    stdin mix - a mixer/multiplexer for stdin to processes
+    Copyright (C) 2007  Lluís Batlle i Rossell
+
+    Please find the license in the provided COPYING file.
+*/
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/types.h>
@@ -6,6 +12,8 @@
 
 #include "main.h"
 
+static const char version[] = "0.9";
+
 static int max(int a, int b)
 {
     if (a > b)
@@ -211,7 +219,8 @@
 
 static int showhelp(const char *pname)
 {
-    printf("sdtdin-mix - Copyright 2007 Lluís Batlle i Rossell\n");
+    printf("sdtdin-mix v%s - Copyright (C) 2007  Lluis Batlle i Rossell\n",
+            version);
     printf("usage: %s [appcommand] [param1] [param2] ...\n", pname);
     printf(" If you give _appcommand_, it starts the application and\n");
     printf(" a stdin server on $SM_SOCKET or /tmp/socket-sm.UID.\n");