mirror of
https://github.com/denoland/deno.git
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132 lines
3.5 KiB
TypeScript
132 lines
3.5 KiB
TypeScript
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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// TODO(petamoriken): enable prefer-primordials for node polyfills
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// deno-lint-ignore-file prefer-primordials
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import { lookup as defaultLookup } from "node:dns";
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import {
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isInt32,
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validateFunction,
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} from "ext:deno_node/internal/validators.mjs";
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import type { ErrnoException } from "ext:deno_node/internal/errors.ts";
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import { ERR_SOCKET_BAD_TYPE } from "ext:deno_node/internal/errors.ts";
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import { UDP } from "ext:deno_node/internal_binding/udp_wrap.ts";
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import { guessHandleType } from "ext:deno_node/internal_binding/util.ts";
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import { codeMap } from "ext:deno_node/internal_binding/uv.ts";
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export type SocketType = "udp4" | "udp6";
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export const kStateSymbol: unique symbol = Symbol("kStateSymbol");
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function lookup4(
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lookup: typeof defaultLookup,
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address: string,
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callback: (
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err: ErrnoException | null,
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address: string,
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family: number,
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) => void,
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) {
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return lookup(address || "127.0.0.1", 4, callback);
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}
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function lookup6(
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lookup: typeof defaultLookup,
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address: string,
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callback: (
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err: ErrnoException | null,
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address: string,
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family: number,
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) => void,
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) {
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return lookup(address || "::1", 6, callback);
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}
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export function newHandle(
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type: SocketType,
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lookup?: typeof defaultLookup,
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): UDP {
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if (lookup === undefined) {
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lookup = defaultLookup;
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} else {
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validateFunction(lookup, "lookup");
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}
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if (type === "udp4") {
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const handle = new UDP();
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handle.lookup = lookup4.bind(handle, lookup);
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return handle;
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}
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if (type === "udp6") {
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const handle = new UDP();
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handle.lookup = lookup6.bind(handle, lookup);
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handle.bind = handle.bind6;
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handle.connect = handle.connect6;
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handle.send = handle.send6;
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return handle;
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}
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throw new ERR_SOCKET_BAD_TYPE();
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}
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export function _createSocketHandle(
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address: string,
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port: number,
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addressType: SocketType,
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fd: number,
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flags: number,
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) {
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const handle = newHandle(addressType);
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let err;
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if (isInt32(fd) && fd > 0) {
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const type = guessHandleType(fd);
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if (type !== "UDP") {
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err = codeMap.get("EINVAL")!;
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} else {
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err = handle.open(fd);
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}
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} else if (port || address) {
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err = handle.bind(address, port || 0, flags);
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}
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if (err) {
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handle.close();
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return err;
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}
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return handle;
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}
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export default {
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kStateSymbol,
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newHandle,
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_createSocketHandle,
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};
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