Allow meshlink_open() to be called with a NULL name.

[meshlink] / examples / meshlinkapp.c

diff --git a/examples/meshlinkapp.c b/examples/meshlinkapp.c
index 972544e13fb89f8d034d9c23b116741a8386d66e..54e82a39ed4099fcc0d5d2bb752970091f333779 100644 (file)
--- a/examples/meshlinkapp.c
+++ b/examples/meshlinkapp.c
@@ -3,6 +3,8 @@
 #include "../src/meshlink.h"
 
 void handle_recv_data(meshlink_handle_t *mesh, meshlink_node_t *source, void *data, size_t len) {
+       (void)mesh;
+
        printf("Received %zu bytes from %s: %s\n", len, source->name, (char *)data);
 }
 
@@ -16,15 +18,24 @@ int main(int argc, char **argv) {
 
        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;
@@ -36,7 +47,10 @@ int main(int argc, char **argv) {
                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);