     case EPROTO /* Protocol error */
     case ETIME /* STREAM ioctl timeout */
     
-    /* This value is only discrete when compiling __DARWIN_UNIX03, or KERNEL */
     case EOPNOTSUPP /* Operation not supported on socket */
-    /* __DARWIN_UNIX03 || KERNEL */
     
     case ENOPOLICY /* No such policy registered */
     

    case ENOBUFS /* No buffer space available */
    case EISCONN /* Socket is already connected */
    case ENOTCONN /* Socket is not connected */

    case ESHUTDOWN /* Can't send after socket shutdown */
    case ETOOMANYREFS /* Too many references: can't splice */

    case ETIMEDOUT /* Operation timed out */
    case ECONNREFUSED /* Connection refused */


    case EIDRM /* Identifier removed */
    case ENOMSG /* No message of desired type */
    case EILSEQ /* Illegal byte sequence */
    case ENOATTR /* Attribute not found */

    case EBADMSG /* Bad message */
