65     int rv = hardwareAddressType(interface);  in isEthernet()  local
66     if (rv < 0) {  in isEthernet()
67         errno = -rv;  in isEthernet()
71     switch (rv) {  in isEthernet()
80             return ErrnoErrorf("Unknown hardware address type {} on interface {}", rv, interface);  in isEthernet()
95     int rv = setsockopt(fd, SOL_NETLINK, NETLINK_CAP_ACK, &on, sizeof(on));  in sendAndProcessNetlinkResponse()  local
96     if (rv) ALOGE("setsockopt(fd, SOL_NETLINK, NETLINK_CAP_ACK, %d)", on);  in sendAndProcessNetlinkResponse()
99     rv = bind(fd, (const struct sockaddr*)&KERNEL_NLADDR, sizeof(KERNEL_NLADDR));  in sendAndProcessNetlinkResponse()
100     if (rv) {  in sendAndProcessNetlinkResponse()
107     rv = connect(fd, (const struct sockaddr*)&KERNEL_NLADDR, sizeof(KERNEL_NLADDR));  in sendAndProcessNetlinkResponse()
108     if (rv) {  in sendAndProcessNetlinkResponse()
114     rv = send(fd, req, len, 0);  in sendAndProcessNetlinkResponse()
115     if (rv == -1) return -errno;  in sendAndProcessNetlinkResponse()
116     if (rv != len) return -EMSGSIZE;  in sendAndProcessNetlinkResponse()
124     rv = recv(fd, &resp, sizeof(resp), MSG_TRUNC);  in sendAndProcessNetlinkResponse()
126     if (rv == -1) {  in sendAndProcessNetlinkResponse()
132     if (rv < (int)NLMSG_SPACE(sizeof(struct nlmsgerr))) {  in sendAndProcessNetlinkResponse()
133         ALOGE("recv() returned short packet: %d", rv);  in sendAndProcessNetlinkResponse()
137     if (resp.h.nlmsg_len != (unsigned)rv) {  in sendAndProcessNetlinkResponse()
138         ALOGE("recv() returned invalid header length: %d != %d", resp.h.nlmsg_len, rv);  in sendAndProcessNetlinkResponse()