diff --git a/src/db.c b/src/db.c
index 64ec7f6..4df3c7c 100644
--- a/src/db.c
+++ b/src/db.c
@@ -1,3 +1,21 @@
+/* wMUD - Yet another MUD codebase by W00d5t0ck
+ * Copyright (C) 2012 - Gergely POLONKAI
+ *
+ * db.c: database handling routines
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
 #include <glib.h>
 #include <sqlite3.h>
 
diff --git a/src/db.h b/src/db.h
index af77597..c35c01d 100644
--- a/src/db.h
+++ b/src/db.h
@@ -1,3 +1,21 @@
+/* wMUD - Yet another MUD codebase by W00d5t0ck
+ * Copyright (C) 2012 - Gergely POLONKAI
+ *
+ * db.h: database handling routine prototypes
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
 #ifndef __WMUD_DB_H__
 #define __WMUD_DB_H__
 
diff --git a/src/interpreter.c b/src/interpreter.c
index d26bdba..47fbd66 100644
--- a/src/interpreter.c
+++ b/src/interpreter.c
@@ -1,3 +1,21 @@
+/* wMUD - Yet another MUD codebase by W00d5t0ck
+ * Copyright (C) 2012 - Gergely POLONKAI
+ *
+ * interpreter.c: game command interpreter routines
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
 #include <glib.h>
 #include <gio/gio.h>
 #include <string.h>
diff --git a/src/interpreter.h b/src/interpreter.h
index 305cdfb..e479675 100644
--- a/src/interpreter.h
+++ b/src/interpreter.h
@@ -1,3 +1,21 @@
+/* wMUD - Yet another MUD codebase by W00d5t0ck
+ * Copyright (C) 2012 - Gergely POLONKAI
+ *
+ * interpreter.h: game command interpreter prototypes and variables
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
 #ifndef __WMUD_INTERPRETER_H__
 # define __WMUD_INTERPRETER_H__
 
diff --git a/src/main.c b/src/main.c
index 78078fe..a281488 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,3 +1,21 @@
+/* wMUD - Yet another MUD codebase by W00d5t0ck
+ * Copyright (C) 2012 - Gergely POLONKAI
+ *
+ * main.c: main and uncategorized functions
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
diff --git a/src/networking.c b/src/networking.c
index b41dd13..6db7355 100644
--- a/src/networking.c
+++ b/src/networking.c
@@ -1,3 +1,21 @@
+/* wMUD - Yet another MUD codebase by W00d5t0ck
+ * Copyright (C) 2012 - Gergely POLONKAI
+ *
+ * networking.c: basic networking functions
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
 #include <glib.h>
 #include <gio/gio.h>
 #include <string.h>
diff --git a/src/networking.h b/src/networking.h
index f7d6d2b..874c4d1 100644
--- a/src/networking.h
+++ b/src/networking.h
@@ -1,3 +1,21 @@
+/* wMUD - Yet another MUD codebase by W00d5t0ck
+ * Copyright (C) 2012 - Gergely POLONKAI
+ *
+ * networking.h: basic networking function headers, variables and defines
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
 #ifndef __WMUD_NETWORKING_H__
 # define __WMUD_NETWORKING_H__
 
diff --git a/src/players.c b/src/players.c
index 1e98a83..db06de8 100644
--- a/src/players.c
+++ b/src/players.c
@@ -1,8 +1,8 @@
-/*
- * players.c
- *
+/* wMUD - Yet another MUD codebase by W00d5t0ck
  * Copyright (C) 2012 - Gergely POLONKAI
  *
+ * players.c: player structure related functions
+ *
  * This program 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 2 of the License, or
diff --git a/src/players.h b/src/players.h
index b3373bc..991ad94 100644
--- a/src/players.h
+++ b/src/players.h
@@ -1,8 +1,8 @@
-/*
- * players.h
- *
+/* wMUD - Yet another MUD codebase by W00d5t0ck
  * Copyright (C) 2012 - Gergely POLONKAI
  *
+ * players.h: player structure related prototypes and variables
+ *
  * This program 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 2 of the License, or
diff --git a/src/wmud_types.h b/src/wmud_types.h
index cef6226..b9b051c 100644
--- a/src/wmud_types.h
+++ b/src/wmud_types.h
@@ -1,3 +1,21 @@
+/* wMUD - Yet another MUD codebase by W00d5t0ck
+ * Copyright (C) 2012 - Gergely POLONKAI
+ *
+ * wmud_types.h: Common wMUD data types
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
 #ifndef __WMUD_TYPES_H__
 #define __WMUD_TYPES_H__