Enum c_ares::Error

pub enum Error {
    ENODATA,
    EFORMERR,
    ESERVFAIL,
    ENOTFOUND,
    ENOTIMP,
    EREFUSED,
    EBADQUERY,
    EBADNAME,
    EBADFAMILY,
    EBADRESP,
    ECONNREFUSED,
    ETIMEOUT,
    EOF,
    EFILE,
    ENOMEM,
    EDESTRUCTION,
    EBADSTR,
    EBADFLAGS,
    ENONAME,
    EBADHINTS,
    ENOTINITIALIZED,
    ELOADIPHLPAPI,
    EADDRGETNETWORKPARAMS,
    ECANCELLED,
    UNKNOWN,
}

Error codes that the library might return.

Variants

ENODATA

DNS server returned answer with no data.

EFORMERR

DNS server claims query was misformatted.

ESERVFAIL

DNS server returned general failure.

ENOTFOUND

Domain name not found.

ENOTIMP

DNS server does not implement requested operation.

EREFUSED

DNS server refused query.

EBADQUERY

Misformatted DNS query.

EBADNAME

Misformatted domain name.

EBADFAMILY

Unsupported address family.

EBADRESP

Misformatted DNS reply.

ECONNREFUSED

Could not contact DNS servers.

ETIMEOUT

Timeout while contacting DNS servers.

EOF

End of file.

EFILE

Error reading file.

ENOMEM

Out of memory.

EDESTRUCTION

Channel is being destroyed.

EBADSTR

Misformatted string.

EBADFLAGS

Illegal flags specified.

ENONAME

Given hostname is not numeric.

EBADHINTS

Illegal hints flags specified.

ENOTINITIALIZED

c-ares library initialization not yet performed.

ELOADIPHLPAPI

Error loading iphlpapi.dll.

EADDRGETNETWORKPARAMS

Could not find GetNetworkParams function.

ECANCELLED

DNS query cancelled.

UNKNOWN

Unknown error.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Error

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Error

fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Error for Error

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

fn backtrace(&self) -> Option<&Backtrace>

🔬 This is a nightly-only experimental API. (backtrace)

Returns a stack backtrace, if available, of where this error occurred.

fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl From<i32> for Error

fn from(code: i32) -> Self

Performs the conversion.

impl Hash for Error

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl Ord for Error

fn cmp(&self, other: &Error) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<Error> for Error

fn eq(&self, other: &Error) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl PartialOrd<Error> for Error

fn partial_cmp(&self, other: &Error) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Error

impl Eq for Error

impl StructuralEq for Error

impl StructuralPartialEq for Error