Fields

SUCCESS = 0,
2BIG = 1,
ACCES = 2,
ADDRINUSE = 3,
ADDRNOTAVAIL = 4,
AFNOSUPPORT = 5,
AGAIN = 6,

This is also the error code used for WOULDBLOCK.

ALREADY = 7,
BADF = 8,
BADMSG = 9,
BUSY = 10,
CANCELED = 11,
CHILD = 12,
CONNABORTED = 13,
CONNREFUSED = 14,
CONNRESET = 15,
DEADLK = 16,
DESTADDRREQ = 17,
DOM = 18,
DQUOT = 19,
EXIST = 20,
FAULT = 21,
FBIG = 22,
HOSTUNREACH = 23,
IDRM = 24,
ILSEQ = 25,
INPROGRESS = 26,
INTR = 27,
INVAL = 28,
IO = 29,
ISCONN = 30,
ISDIR = 31,
LOOP = 32,
MFILE = 33,
MLINK = 34,
MSGSIZE = 35,
MULTIHOP = 36,
NAMETOOLONG = 37,
NETDOWN = 38,
NETRESET = 39,
NETUNREACH = 40,
NFILE = 41,
NOBUFS = 42,
NODEV = 43,
NOENT = 44,
NOEXEC = 45,
NOLCK = 46,
NOLINK = 47,
NOMEM = 48,
NOMSG = 49,
NOPROTOOPT = 50,
NOSPC = 51,
NOSYS = 52,
NOTCONN = 53,
NOTDIR = 54,
NOTEMPTY = 55,
NOTRECOVERABLE = 56,
NOTSOCK = 57,
OPNOTSUPP = 58,

This is also the code used for NOTSUP.

NOTTY = 59,
NXIO = 60,
OVERFLOW = 61,
OWNERDEAD = 62,
PERM = 63,
PIPE = 64,
PROTO = 65,
PROTONOSUPPORT = 66,
PROTOTYPE = 67,
RANGE = 68,
ROFS = 69,
SPIPE = 70,
SRCH = 71,
STALE = 72,
TIMEDOUT = 73,
TXTBSY = 74,
XDEV = 75,
NOTCAPABLE = 76,