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vsock_proxy: Use system-configured nameservers for DNS resolution #622

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merged 1 commit into from
Jun 3, 2024
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vsock_proxy: Use system-configured nameservers for DNS resolution #622

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8 changes: 4 additions & 4 deletions vsock_proxy/src/dns.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,6 @@
use std::net::IpAddr;

use chrono::{DateTime, Duration, Utc};
use hickory_resolver::config::*;
use hickory_resolver::Resolver;
use idna::domain_to_ascii;

Expand Down Expand Up @@ -51,11 +50,12 @@ pub fn resolve(addr: &str, ip_addr_type: IpAddrType) -> VsockProxyResult<Vec<Dns
// IDNA parsing
let addr = domain_to_ascii(addr).map_err(|_| "Could not parse domain name")?;

// Initialize a DNS resolver using the system's configured nameservers.
let resolver = Resolver::from_system_conf()
.map_err(|_| "Error while initializing DNS resolver!".to_string())?;

// DNS lookup
// It results in a vector of IPs (V4 and V6)
let resolver = Resolver::new(ResolverConfig::default(), ResolverOpts::default())
.map_err(|_| "Error while initializing DNS resolver!")?;

let rresults: Vec<DnsResolutionInfo> = resolver
.lookup_ip(addr)
.map_err(|_| "DNS lookup failed!")?
Expand Down