added command line arguments to configure osc

spacenavOSC.c

@@ -19,8 +19,49 @@ void sig(int s)
 	exit(0);
 }
 
-int main(void)
-{
+int main(int argc, char *argv[])
+{	
+	const char * ip = NULL;
+	const char * port = "8000" ;
+
+	// handle cli arguments
+	int opt;
+	while((opt = getopt(argc, argv, "hi:p:")) != -1)  
+    {  
+        switch(opt)  
+        {  
+            case 'i':  
+                printf("ip: %s\n", optarg); 
+				ip = optarg ;
+                break;  
+            case 'p':  
+                printf("port: %s\n", optarg); 
+				port = optarg ; 
+                break;  
+			 case 'h':
+                fprintf(stderr, "Usage: spacenavOSC -i 192.168.0.1 -p 8000\n"
+                                "Options:\n"
+                                "  -i         target IP, default to localhost\n"
+								"  -p         target port, default 8000\n"
+                                "  -h         print this message.\n"
+                       );
+                return 0;
+            case ':':  
+                printf("option needs a value\n");  
+                return 0;
+				break;  
+            case '?':  
+                printf("unknown option: %c\n", optopt); 
+                return 0;
+				break;  
+        }  
+    }  
+      
+    // optind is for the extra arguments 
+    // which are not parsed 
+    for(; optind < argc; optind++){      
+        printf("extra arguments: %s\n", argv[optind]);  
+    } 
 
 
 	spnav_event sev;
@@ -31,7 +72,8 @@ int main(void)
 		return 1;
 	}
 
-  	lo_address t = lo_address_new(NULL, "7770");
+  	lo_address t = lo_address_new(ip, port);
+	lo_send(t, "/spnav", "s","spnavOSC started");
   
 	/* spnav_wait_event() and spnav_poll_event(), will silently ignore any non-spnav X11 events.
 	 *
@@ -44,12 +86,12 @@ int main(void)
 		if(sev.type == SPNAV_EVENT_MOTION) {
 			printf("got motion event: t(%d, %d, %d) ", sev.motion.x, sev.motion.y, sev.motion.z);
 			printf("r(%d, %d, %d)\n", sev.motion.rx, sev.motion.ry, sev.motion.rz);
-			lo_send(t, "/motion", "iiiiii",sev.motion.x, sev.motion.y, sev.motion.z, sev.motion.rx, sev.motion.ry, sev.motion.rz);
+			lo_send(t, "/spnav/motion", "iiiiii",sev.motion.x, sev.motion.y, sev.motion.z, sev.motion.rx, sev.motion.ry, sev.motion.rz);
 
 		  	
 		} else {	/* SPNAV_EVENT_BUTTON */
 			printf("got button %s event b(%d)\n", sev.button.press ? "press" : "release", sev.button.bnum);
-			lo_send(t, "/button", "ii",  sev.button.press ? 1 : 0, sev.button.bnum);
+			lo_send(t, "/spnav/button", "ii",  sev.button.press ? 1 : 0, sev.button.bnum);
 		}
 	}