Struct WhoIsLookupOptions 

#[non_exhaustive]
pub struct WhoIsLookupOptions {
    pub target: Target,
    pub server: Option<WhoIsServerValue>,
    pub follow: u16,
    pub timeout: Option<Duration>,
    pub max_response_size: Option<usize>,
}

The options about how to lookup.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

target: Target

The target that you want to lookup.

server: Option<WhoIsServerValue>

The WHOIS server that you want to use. If it is None, an appropriate WHOIS server will be chosen from the list of WHOIS servers that the WhoIs instance have. The default value is None.

follow: u16

Number of times to follow redirects. The default value is 2.

timeout: Option<Duration>

The timeout of each connection to a WHOIS server. None means no timeout at all. The default value is 60 seconds.

The timeout is a budget for one connection: it covers resolving the address of the server, connecting to it (even when the server has several addresses to try) and reading the whole response. A lookup which follows referrals spends one budget per connection, so it can take up to follow + 1 times this value.

max_response_size: Option<usize>

The maximum number of bytes to accept from a WHOIS server. A bigger response makes the lookup fail instead of being truncated. None means no limit at all, which lets a broken or malicious server exhaust the memory. The default value is 4 MiB.

Implementations

impl WhoIsLookupOptions

pub fn from_target(target: Target) -> WhoIsLookupOptions

Create options with the default settings for a target.

pub fn from_str<S: AsRef<str>>(s: S) -> Result<WhoIsLookupOptions, WhoIsError>

Parse a domain or an IP into a target and create options with the default settings.

pub fn from_string<S: Into<String>>( s: S, ) -> Result<WhoIsLookupOptions, WhoIsError>

Parse a domain or an IP into a target and create options with the default settings. The string may be reused as the target, avoiding an allocation.

Trait Implementations

impl Clone for WhoIsLookupOptions

fn clone(&self) -> WhoIsLookupOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WhoIsLookupOptions

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

Formats the value using the given formatter.