diff --git a/source_code/errors.h b/source_code/errors.h
new file mode 100644
index 0000000..57a326a
--- /dev/null
+++ b/source_code/errors.h
@@ -0,0 +1,43 @@
+/*
+ * :ts=4
+ *
+ * SMB file system wrapper for AmigaOS, using the AmiTCP V3 API
+ *
+ * Copyright (C) 2000-2018 by Olaf `Olsen' Barthel <obarthel -at- gmx -dot- net>
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+enum
+{
+	error_end_of_file=10000,
+	error_invalid_netbios_session,
+	error_message_exceeds_buffer_size,
+	error_invalid_buffer_format,
+	error_data_exceeds_buffer_size,
+	error_invalid_parameter_size,
+	error_check_smb_error,
+	error_server_setup_incomplete,
+	error_server_connection_invalid,
+	error_smb_message_signature_missing,
+	error_smb_message_too_short,
+	error_smb_message_invalid_command,
+	error_smb_message_invalid_word_count,
+	error_smb_message_invalid_byte_count,
+	error_looping_in_find_next,
+	error_invalid_directory_size,
+	error_session_request_failed,
+	error_unsupported_dialect,
+};