Allowing user to set the interface as an argument for sv_publisher_example.c

examples/sv_publisher/sv_publisher_example.c

@@ -20,7 +20,16 @@ void sigint_handler(int signalId)
 int
 main(int argc, char** argv)
 {
-    SampledValuesPublisher svPublisher = SampledValuesPublisher_create("vboxnet0");
+    char * interface;
+    if (argc > 1) {
+        interface=argv[1];
+    }
+    else {
+        interface = "vboxnet0";
+    }
+    printf("Using interface %s\n", interface);
+
+    SampledValuesPublisher svPublisher = SampledValuesPublisher_create(interface);
 
     SV_ASDU asdu1 = SampledValuesPublisher_addASDU(svPublisher, "svpub1", NULL, 1);