ECHILD          Errno = 12
	ECONNABORTED    Errno = 13
	ECONNREFUSED    Errno = 14
	ECONNRESET      Errno = 15
	EDEADLK         Errno = 16
	EDESTADDRREQ    Errno = 17
	EDOM            Errno = 18
	EDQUOT          Errno = 19
	EEXIST          Errno = 20
	EFAULT          Errno = 21
	EFBIG           Errno = 22
	EHOSTUNREACH    Errno = 23
	EIDRM           Errno = 24
	EILSEQ          Errno = 25
	EINPROGRESS     Errno = 26