mirror of
https://github.com/apple/container.git
synced 2026-07-17 06:57:05 +00:00
J Logan
4a8a8a6f89
- Closes #1268. - The types we were using weren't very usable with Swift 6 structured concurrency. - Implements just the subset of records that we use. - Use notImplemented instead of formatError for unknown record types. - Use pure actor for LocalhostDNSHandler now that we have sendable types. - Use DNSName as key for table lookups in LocalhostDNSHandler and HostTableResolver. - Utilize dot-suffixed domain names everywhere in the lookup chain. - Huge thanks to @manojmahapatra and @katiewasnothere for their diligent and patient review :D
47 lines
1.6 KiB
Swift
47 lines
1.6 KiB
Swift
//===----------------------------------------------------------------------===//
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// Copyright © 2025-2026 Apple Inc. and the container project authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//===----------------------------------------------------------------------===//
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/// Handler that returns NXDOMAIN for all hostnames.
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public struct NxDomainResolver: DNSHandler {
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private let ttl: UInt32
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public init(ttl: UInt32 = 300) {
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self.ttl = ttl
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}
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public func answer(query: Message) async throws -> Message? {
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let question = query.questions[0]
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switch question.type {
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case ResourceRecordType.host:
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return Message(
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id: query.id,
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type: .response,
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returnCode: .nonExistentDomain,
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questions: query.questions,
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answers: []
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)
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default:
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return Message(
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id: query.id,
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type: .response,
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returnCode: .notImplemented,
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questions: query.questions,
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answers: []
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)
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}
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}
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}
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