feat: add signal option to Deno.resolveDns (#17384)

Closes #14406

3 files changed, 30 insertions, 0 deletions

diff --git a/cli/tests/testdata/run/resolve_dns.ts b/cli/tests/testdata/run/resolve_dns.ts
index ae6ed70a4..a2d0fd046 100644
--- a/cli/tests/testdata/run/resolve_dns.ts
+++ b/cli/tests/testdata/run/resolve_dns.ts
@@ -69,3 +69,25 @@ try {
 } catch (e) {
   console.log(e.message);
 }
+
+try {
+  const ac = new AbortController();
+  queueMicrotask(() => ac.abort());
+  await Deno.resolveDns("www.example.com", "A", {
+    ...nameServer,
+    signal: ac.signal,
+  });
+} catch (e) {
+  console.log(e.name);
+}
+
+try {
+  const ac = new AbortController();
+  ac.abort();
+  await Deno.resolveDns("www.example.com", "A", {
+    ...nameServer,
+    signal: ac.signal,
+  });
+} catch (e) {
+  console.log(e.name);
+}
diff --git a/cli/tests/testdata/run/resolve_dns.ts.out b/cli/tests/testdata/run/resolve_dns.ts.out
index f41dc68bc..025028395 100644
--- a/cli/tests/testdata/run/resolve_dns.ts.out
+++ b/cli/tests/testdata/run/resolve_dns.ts.out
@@ -24,3 +24,5 @@ TXT
 [["I","am","a","txt","record"],["I","am","another","txt","record"],["I am a different","txt record"],["key=val"]]
 Error NotFound thrown for not-found-example.com
 Provided record type is not supported
+AbortError
+AbortError
diff --git a/cli/tsc/dts/lib.deno.ns.d.ts b/cli/tsc/dts/lib.deno.ns.d.ts
index 58dd602d8..33a568b65 100644
--- a/cli/tsc/dts/lib.deno.ns.d.ts
+++ b/cli/tsc/dts/lib.deno.ns.d.ts
@@ -4989,6 +4989,12 @@ declare namespace Deno {
        * @default {53} */
       port?: number;
     };
+    /**
+     * An abort signal to allow cancellation of the DNS resolution operation.
+     * If the signal becomes aborted the resolveDns operation will be stopped
+     * and the promise returned will be rejected with an AbortError.
+     */
+    signal?: AbortSignal;
   }
 
   /** If {@linkcode Deno.resolveDns} is called with `"CAA"` record type