MSG_BUF_IOCTL_LEN
unsigned char buf[MSG_BUF_IOCTL_LEN];
unsigned char buf[MSG_BUF_IOCTL_LEN];
unsigned char buf[MSG_BUF_IOCTL_LEN];
unsigned char buf[MSG_BUF_IOCTL_LEN];
if (!vsock_ioctl_int(fd, SIOCINQ, MSG_BUF_IOCTL_LEN)) {