From 8ba2a74937d157cc218f7ac3680e660fe3deb931 Mon Sep 17 00:00:00 2001
From: Julian Barathieu <spectral@os-k.eu>
Date: Sat, 18 May 2019 23:19:49 +0200
Subject: [PATCH] vers command

---
 include/vers.h            | 37 +++++++++++++++++++++++++++++++++++++
 kaleid/kernel/sh/shcmds.c | 13 +++++++++++++
 kaleid/kernel/sh/shell.h  |  1 +
 3 files changed, 51 insertions(+)
 create mode 100644 include/vers.h

diff --git a/include/vers.h b/include/vers.h
new file mode 100644
index 0000000..40f219a
--- /dev/null
+++ b/include/vers.h
@@ -0,0 +1,37 @@
+//----------------------------------------------------------------------------//
+//                           GNU GPL OS/K                                     //
+//                                                                            //
+//  Desc:       Kaleid version                                                //
+//                                                                            //
+//                                                                            //
+//  Copyright © 2018-2019 The OS/K Team                                       //
+//                                                                            //
+//  This file is part of OS/K.                                                //
+//                                                                            //
+//  OS/K is free software: you can redistribute it and/or modify              //
+//  it under the terms of the GNU General Public License as published by      //
+//  the Free Software Foundation, either version 3 of the License, or         //
+//  any later version.                                                        //
+//                                                                            //
+//  OS/K is distributed in the hope that it will be useful,                   //
+//  but WITHOUT ANY WARRANTY//without even the implied warranty of            //
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the             //
+//  GNU General Public License for more details.                              //
+//                                                                            //
+//  You should have received a copy of the GNU General Public License         //
+//  along with OS/K.  If not, see <https://www.gnu.org/licenses/>.            //
+//----------------------------------------------------------------------------//
+
+#ifndef _VERS_H
+#define _VERS_H
+
+//----------------------------------------------------------------------------//
+
+#define _KALEID_VERSION  "0.1-alpha"
+#define _KALVERS_MAJOR 0
+#define _KALVERS_MINOR 1
+
+//----------------------------------------------------------------------------//
+
+#endif
+
diff --git a/kaleid/kernel/sh/shcmds.c b/kaleid/kernel/sh/shcmds.c
index 6a7ce70..79e2c84 100644
--- a/kaleid/kernel/sh/shcmds.c
+++ b/kaleid/kernel/sh/shcmds.c
@@ -205,6 +205,18 @@ error_t CmdStackOverflow(int argc, char **argv, char *cmdline)
 
 error_t CmdMemUsage(int argc, char **argv, char *cmdline);
 
+error_t CmdVersion(int argc, char **argv, char *cmdline)
+{
+    KernLog("OS/K, version %s (x86-64)\n", _KALEID_VERSION);
+    KernLog("Copyright (C) 2019 The OS/K Team.\n");
+    KernLog("License GPLv3+: GNU GPL version 3 "
+            "or later <http://gnu.org/licenses/gpl.html>\n");
+    KernLog("This is free software; you are "
+            "free to change and redistribute it.\n");
+    KernLog("There is NO WARRANTY, to the extent permitted by law.\n");
+    return EOK;
+}
+
 //----------------------------------------------------------------------------//
 
 Command_t cmdtable[] =
@@ -227,6 +239,7 @@ Command_t cmdtable[] =
     { "shell",      CmdShell,           "Start a new shell (nested)", },
     { "stkov",      CmdStackOverflow,   "Provoke a stack overflow" },
     { "time",       CmdTime,            "Print time" },
+    { "vers",       CmdVersion,         "Version and legal infos" },
     { NULL, NULL, NULL }
 };
 
diff --git a/kaleid/kernel/sh/shell.h b/kaleid/kernel/sh/shell.h
index aba40f7..79d1815 100644
--- a/kaleid/kernel/sh/shell.h
+++ b/kaleid/kernel/sh/shell.h
@@ -23,6 +23,7 @@
 //----------------------------------------------------------------------------//
 
 #include <asm.h>
+#include <vers.h>
 #include <lib/buf.h>
 #include <ex/argv.h>
 #include <init/boot.h>