retval = sendto(sock, &usend_msg, sizeof(usend_msg), 0, (struct sockaddr *)&saddr, addrlen);
- if (retval == -1)
+ if (retval == -1) {
info("error sending message (%s)", strerror(errno));
+ retval = 1;
+ } else {
+ dbg("sent message '%x' (%u bytes sent)\n", usend_msg.type, retval);
+ retval = 0;
+ }
close(sock);