X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=examples%2Fmeshlinkapp.c;h=67f996a4f91b75c3e036304a8dad4a29f7a8615a;hb=4b6c01b1d5383b1a7417244a31ad4652aab2d5db;hp=d9e5b7e0ba4d6dfcb52632ff1f0a16852a1c71fe;hpb=e4e5a81447142da0fb1291b2d2119ed6981b89e5;p=meshlink

diff --git a/examples/meshlinkapp.c b/examples/meshlinkapp.c
index d9e5b7e0..67f996a4 100644
--- a/examples/meshlinkapp.c
+++ b/examples/meshlinkapp.c
@@ -2,29 +2,39 @@
 #include "../src/system.h"
 #include "../src/meshlink.h"
 
-void handle_recv_data(meshlink_handle_t *mesh, meshlink_node_t *source, void *data, size_t len) {
-	printf("Received %zu bytes from %s: %s\n", len, source->name, (char*)data);
-}
+static void handle_recv_data(meshlink_handle_t *mesh, meshlink_node_t *source, void *data, size_t len) {
+	(void)mesh;
 
-int main(int argc , char **argv){
-	char *confbase = argc > 1 ? argv[1] : "/tmp/meshlink/";
-	char *name = argc > 2 ? argv[2] : "foo";
+	printf("Received %zu bytes from %s: %s\n", len, source->name, (char *)data);
+}
 
-	char *remotename = argc > 3 ? argv[3] : "bar";
+int main(int argc, char **argv) {
+	const char *confbase = argc > 1 ? argv[1] : "/tmp/meshlink/";
+	const char *name = argc > 2 ? argv[2] : "foo";
+	const char *remotename = argc > 3 ? argv[3] : "bar";
 
-	meshlink_handle_t* myhandle;
+	meshlink_handle_t *myhandle;
 
 	myhandle = meshlink_open(confbase, name, "meshlinkapp", DEV_CLASS_STATIONARY);
 
+	if(!myhandle) {
+		fprintf(stderr, "Could not open MeshLink: %s", meshlink_strerror(meshlink_errno));
+		return 1;
+	}
+
 	//Register callback function for incoming data
 	meshlink_set_receive_cb(myhandle, (meshlink_receive_cb_t)handle_recv_data);
 
-	meshlink_start(myhandle);
+	if(!meshlink_start(myhandle)) {
+		fprintf(stderr, "Could not start MeshLink: %s", meshlink_strerror(meshlink_errno));
+		return 1;
+	}
 
 	while(1) {
 		sleep(10);
 
 		meshlink_node_t *remotenode = meshlink_get_node(myhandle, remotename);
+
 		if(!remotenode) {
 			fprintf(stderr, "Node %s not known yet.\n", remotename);
 			continue;
@@ -32,11 +42,14 @@ int main(int argc , char **argv){
 
 		//sample data to send out
 		char mydata[200];
-		memset(mydata,0,200);
-		strcpy(mydata,"Hello World!");
+		memset(mydata, 0, 200);
+		strcpy(mydata, "Hello World!");
 
 		//send out data
-		meshlink_send(myhandle,remotenode,mydata,sizeof(mydata));
+		if(!meshlink_send(myhandle, remotenode, mydata, sizeof(mydata))) {
+			fprintf(stderr, "Error sending data: %s", meshlink_strerror(meshlink_errno));
+			return 1;
+		}
 	}
 
 	meshlink_stop(myhandle);