Enum ResolverOption 

#[repr(u32)]
pub enum ResolverOption {
    Init = 1,
    Debug = 2,
    UseVC = 8,
    IgnTc = 32,
    Recurse = 64,
    DefNames = 128,
    StayOpen = 256,
    DNSrch = 512,
    NoAliases = 4_096,
    Rotate = 16_384,
    UseEDNS0 = 1_048_576,
    SngLkup = 2_097_152,
    SngLkupReop = 4_194_304,
    UseDNSSEC = 8_388_608,
    NoTLDQuery = 16_777_216,
    NoReload = 33_554_432,
    TrustAD = 67_108_864,
    Default = 704,
}

Options for the Resolver

Variants

Init = 1

address initialized

Debug = 2

print debug messages

UseVC = 8

use virtual circuit

IgnTc = 32

ignore truncation errors

Recurse = 64

recursion desired

DefNames = 128

use default domain name

StayOpen = 256

Keep TCP socket open

DNSrch = 512

search up local domain tree

NoAliases = 4_096

shuts off HOSTALIASES feature

Rotate = 16_384

rotate ns list after each query

UseEDNS0 = 1_048_576

Use EDNS0.

SngLkup = 2_097_152

one outstanding request at a time

SngLkupReop = 4_194_304

one outstanding request at a time, but open new socket for each request

UseDNSSEC = 8_388_608

use DNSSEC using OK bit in OPT

NoTLDQuery = 16_777_216

Do not look up unqualified name as a TLD.

NoReload = 33_554_432

No automatic configuration reload (since glibc 2.26; invalid in prior versions)

TrustAD = 67_108_864

Request AD bit, keep it in responses (since glibc 2.31; invalid in prior version)

Default = 704

Default values

Trait Implementations

impl Clone for ResolverOption

fn clone(&self) -> ResolverOption

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ResolverOption

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

Formats the value using the given formatter.

impl PartialEq for ResolverOption

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ResolverOption

impl StructuralPartialEq for ResolverOption