import of www.freescada.com/public-dist/libmbus-0.7.0.tar.gz

bin/mbus-tcp-scan.c

@@ -0,0 +1,70 @@
+//------------------------------------------------------------------------------
+// Copyright (C) 2011, Robert Johansson, Raditex AB
+// All rights reserved.
+//
+// FreeSCADA 
+// http://www.FreeSCADA.com
+// freescada@freescada.com
+//
+//------------------------------------------------------------------------------
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+
+#include <stdio.h>
+#include <mbus/mbus.h>
+
+
+//------------------------------------------------------------------------------
+// Execution starts here:
+//------------------------------------------------------------------------------
+int
+main(int argc, char **argv)
+{
+    mbus_handle *handle;
+    char *host;
+    int port, address;
+
+    if (argc != 3)
+    {
+        printf("usage: %s host port\n", argv[0]);
+        return 0;
+    }
+ 
+    host = argv[1];   
+    port = atoi(argv[2]);
+    
+    if ((handle = mbus_connect_tcp(host, port)) == NULL)
+    {
+        printf("Scan failed: Could not setup connection to M-bus gateway: %s\n",  mbus_error_str());
+        return -1;
+    }
+
+    for (address = 0; address < 254; address++)
+    {
+        mbus_frame reply;
+
+        if (mbus_send_ping_frame(handle, address) == -1)
+        {
+            printf("Scan failed. Could not send ping frame: %s\n", mbus_error_str());
+            return -1;
+        } 
+
+        if (mbus_recv_frame(handle, &reply) == -1)
+        {
+            continue;
+        }    
+
+        if (mbus_frame_type(&reply) == MBUS_FRAME_TYPE_ACK)
+        {
+            printf("Found a M-Bus device at address %d\n", address);
+        }
+    }
+
+    mbus_disconnect(handle);
+    return 0;
+}
+