1 files changed, 95 insertions, 0 deletions
diff --git a/ext/node/polyfills/internal/net.ts b/ext/node/polyfills/internal/net.ts
new file mode 100644
index 000000000..2e3a92dfd
--- /dev/null
+++ b/ext/node/polyfills/internal/net.ts
@@ -0,0 +1,95 @@
+// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+import { Buffer } from "internal:deno_node/polyfills/buffer.ts";
+import { uvException } from "internal:deno_node/polyfills/internal/errors.ts";
+import { writeBuffer } from "internal:deno_node/polyfills/internal_binding/node_file.ts";
+
+// IPv4 Segment
+const v4Seg = "(?:[0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])";
+const v4Str = `(${v4Seg}[.]){3}${v4Seg}`;
+const IPv4Reg = new RegExp(`^${v4Str}$`);
+
+// IPv6 Segment
+const v6Seg = "(?:[0-9a-fA-F]{1,4})";
+const IPv6Reg = new RegExp(
+  "^(" +
+    `(?:${v6Seg}:){7}(?:${v6Seg}|:)|` +
+    `(?:${v6Seg}:){6}(?:${v4Str}|:${v6Seg}|:)|` +
+    `(?:${v6Seg}:){5}(?::${v4Str}|(:${v6Seg}){1,2}|:)|` +
+    `(?:${v6Seg}:){4}(?:(:${v6Seg}){0,1}:${v4Str}|(:${v6Seg}){1,3}|:)|` +
+    `(?:${v6Seg}:){3}(?:(:${v6Seg}){0,2}:${v4Str}|(:${v6Seg}){1,4}|:)|` +
+    `(?:${v6Seg}:){2}(?:(:${v6Seg}){0,3}:${v4Str}|(:${v6Seg}){1,5}|:)|` +
+    `(?:${v6Seg}:){1}(?:(:${v6Seg}){0,4}:${v4Str}|(:${v6Seg}){1,6}|:)|` +
+    `(?::((?::${v6Seg}){0,5}:${v4Str}|(?::${v6Seg}){1,7}|:))` +
+    ")(%[0-9a-zA-Z-.:]{1,})?$",
+);
+
+export function isIPv4(ip: string) {
+  return RegExp.prototype.test.call(IPv4Reg, ip);
+}
+
+export function isIPv6(ip: string) {
+  return RegExp.prototype.test.call(IPv6Reg, ip);
+}
+
+export function isIP(ip: string) {
+  if (isIPv4(ip)) {
+    return 4;
+  }
+  if (isIPv6(ip)) {
+    return 6;
+  }
+
+  return 0;
+}
+
+export function makeSyncWrite(fd: number) {
+  return function (
+    // deno-lint-ignore no-explicit-any
+    this: any,
+    // deno-lint-ignore no-explicit-any
+    chunk: any,
+    enc: string,
+    cb: (err?: Error) => void,
+  ) {
+    if (enc !== "buffer") {
+      chunk = Buffer.from(chunk, enc);
+    }
+
+    this._handle.bytesWritten += chunk.length;
+
+    const ctx: { errno?: number } = {};
+    writeBuffer(fd, chunk, 0, chunk.length, null, ctx);
+
+    if (ctx.errno !== undefined) {
+      const ex = uvException(ctx);
+      ex.errno = ctx.errno;
+
+      return cb(ex);
+    }
+
+    cb();
+  };
+}
+
+export const normalizedArgsSymbol = Symbol("normalizedArgs");