if(!channel) {
fprintf(stderr, "Opening chat channel to '%s'\n", destination->name);
channel = meshlink_channel_open(mesh, destination, CHAT_PORT, channel_receive, NULL, 0);
if(!channel) {
fprintf(stderr, "Opening chat channel to '%s'\n", destination->name);
channel = meshlink_channel_open(mesh, destination, CHAT_PORT, channel_receive, NULL, 0);