{
struct utils::bcm_msg msg;
- ::memset(&msg, 0, sizeof(msg));
const struct sockaddr_can& addr = s.get_tx_address();
socklen_t addrlen = sizeof(addr);
struct ifreq ifr;
ssize_t nbytes = ::recvfrom(s.socket(), &msg, sizeof(msg), 0, (struct sockaddr*)&addr, &addrlen);
+ if(nbytes < 0)
+ {
+ AFB_ERROR("Can't read the next message from socket '%d'. '%s'", s.socket(), strerror(errno));
+ return s;
+ }
ifr.ifr_ifindex = addr.can_ifindex;
- ioctl(s.socket(), SIOCGIFNAME, &ifr);
+ if(ioctl(s.socket(), SIOCGIFNAME, &ifr) < 0)
+ {
+ AFB_ERROR("Can't read the interface name. '%s'", strerror(errno));
+ return s;
+ }
long unsigned int frame_size = nbytes-sizeof(struct bcm_msg_head);
AFB_DEBUG("Data available: %li bytes read. BCM head, opcode: %i, can_id: %i, nframes: %i", frame_size, msg.msg_head.opcode, msg.msg_head.can_id, msg.msg_head.nframes);