--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mb_addr.h	Sun Mar 05 00:05:46 2017 +0000
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2002,2016 Mario de Sousa (msousa@fe.up.pt)
+ *
+ * This file is part of the Modbus library for Beremiz and matiec.
+ *
+ * This Modbus library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 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 Lesser 
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this Modbus library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * This code is made available on the understanding that it will not be
+ * used in safety-critical situations without a full and competent review.
+ */
+
+
+#ifndef MODBUS_LAYER2_H
+#define MODBUS_LAYER2_H
+
+#include <time.h> /* struct timespec data type */
+
+//#include <sys/socket.h>
+//#include <netinet/in.h>
+#include <netinet/ip.h> /* superset of previous */ // Required for INADDR_ANY
+       
+       
+/* Library Error codes */
+#define PORT_FAILURE   -101
+#define INTERNAL_ERROR -102
+#define TIMEOUT        -103
+#define INVALID_FRAME  -104
+#define MODBUS_ERROR   -105
+
+/* NOTE: Modbus error codes are defined in mb_util.h */
+
+
+
+
+typedef enum {optimize_speed, optimize_size} optimization_t;
+
+
+typedef enum {
+        naf_ascii,
+        naf_rtu,
+        naf_tcp,
+  } node_addr_family_t;
+
+typedef struct {
+        const char *host;
+        const char *service;
+        int         close_on_silence;  
+  } node_addr_tcp_t;
+
+typedef struct {
+        const char *device;
+        int         baud;       /* plain baud rate, eg 2400; zero for the default 9600 */
+        int         parity;     /* 0 for none, 1 for odd, 2 for even                   */
+        int         data_bits;
+        int         stop_bits;
+        int         ignore_echo; /* 1 => ignore echo; 0 => do not ignore echo */
+  } node_addr_rtu_t;
+
+typedef node_addr_rtu_t node_addr_ascii_t;
+
+typedef union {
+        node_addr_ascii_t ascii;
+        node_addr_rtu_t   rtu;
+        node_addr_tcp_t   tcp;
+  } node_addr_common_t;
+
+typedef struct {
+        node_addr_family_t  naf;
+        node_addr_common_t  addr;
+  } node_addr_t;
+
+#endif  /* MODBUS_LAYER2_H */
+
+
+
+
+
+
+
+