build(deps-dev): bump typescript from 5.9.3 to 6.0.3

package.json

@@ -10,7 +10,7 @@
     "@types/node": "^20 || ^22 || ^24 || ^25",
     "prettier": "3.8.3",
     "ts-node": "10.9.2",
-    "typescript": "5.9.3"
+    "typescript": "6.0.3"
   },
   "scripts": {
     "prepublishOnly": "yarn prettier:lint && yarn build",

src/NtpTimeSync.ts

@@ -91,12 +91,15 @@ export class NtpTimeSync {
 
     this.options = {
       ...mergedConfig,
-      servers: serverConfig.map((server) => {
-        return {
-          host: server.split(":", 2)[0],
-          port: Number(server.split(":", 2)[1]) || mergedConfig.ntpDefaults.port,
-        };
-      }),
+      servers: serverConfig
+        .filter((server): server is string => server !== undefined)
+        .map((server) => {
+          const parts = server.split(":", 2);
+          return {
+            host: parts[0] ?? server,
+            port: Number(parts[1]) || mergedConfig.ntpDefaults.port,
+          };
+        }),
     };
   }
 
@@ -181,25 +184,30 @@ export class NtpTimeSync {
     // filter erroneous responses, use valid ones as samples
     let samples: SampleData[] = [];
     ntpResults.forEach((data) => {
-      const offsetSign = data.transmitTimestamp.getTime() > data.destinationTimestamp.getTime() ? 1 : -1;
+      const transmitTimestamp = data.transmitTimestamp!;
+      const receiveTimestamp = data.receiveTimestamp!;
+      const originTimestamp = data.originTimestamp!;
+      const precision = data.precision!;
+
+      const offsetSign = transmitTimestamp.getTime() > data.destinationTimestamp.getTime() ? 1 : -1;
 
       const offset =
-        ((Math.abs(data.receiveTimestamp.getTime() - data.originTimestamp.getTime()) +
-          Math.abs(data.transmitTimestamp.getTime() - data.destinationTimestamp.getTime())) /
+        ((Math.abs(receiveTimestamp.getTime() - originTimestamp.getTime()) +
+          Math.abs(transmitTimestamp.getTime() - data.destinationTimestamp.getTime())) /
           2) *
         offsetSign;
 
       const delay = Math.max(
         data.destinationTimestamp.getTime() -
-          data.originTimestamp.getTime() -
-          (data.receiveTimestamp.getTime() - data.transmitTimestamp.getTime()),
+          originTimestamp.getTime() -
+          (receiveTimestamp.getTime() - transmitTimestamp.getTime()),
         Math.pow(2, this.options.ntpDefaults.precision)
       );
 
       const dispersion =
-        Math.pow(2, data.precision) +
+        Math.pow(2, precision) +
         Math.pow(2, this.options.ntpDefaults.precision) +
-        this.options.ntpDefaults.tolerance * (data.destinationTimestamp.getTime() - data.originTimestamp.getTime());
+        this.options.ntpDefaults.tolerance * (data.destinationTimestamp.getTime() - originTimestamp.getTime());
 
       samples.push({
         data: data,
@@ -222,7 +230,12 @@ export class NtpTimeSync {
    * @param {boolean} force Force NTP update
    */
   async getTime(force = false): Promise<NtpTimeResult> {
-    if (!force && lastPoll && Date.now() - lastPoll < Math.pow(2, this.options.ntpDefaults.minPoll) * 1000) {
+    if (
+      !force &&
+      lastPoll &&
+      lastResult &&
+      Date.now() - lastPoll < Math.pow(2, this.options.ntpDefaults.minPoll) * 1000
+    ) {
       let date = new Date();
       date.setUTCMilliseconds(date.getUTCMilliseconds() + lastResult.offset);
 
@@ -285,7 +298,7 @@ export class NtpTimeSync {
    * @param {Integer} mode, defaults to 3 (client)
    * @return {Buffer}
    */
-  private createPacket(leapIndicator = 3, ntpVersion: number = null, mode = 3): Buffer {
+  private createPacket(leapIndicator = 3, ntpVersion: number | undefined = undefined, mode = 3): Buffer {
     ntpVersion = ntpVersion || this.options.ntpDefaults.version;
 
     // generate NTP packet
@@ -344,9 +357,9 @@ export class NtpTimeSync {
       let hasFinished = false;
 
       const errorCallback = (err: Error) => {
-        if (timeoutHandler) {
+        if (timeoutHandler !== undefined) {
           clearTimeout(timeoutHandler);
-          timeoutHandler = null;
+          timeoutHandler = undefined;
         }
 
         if (hasFinished) {
@@ -359,14 +372,14 @@ export class NtpTimeSync {
         reject(err);
       };
 
-      client.on("error", (err) => errorCallback);
+      client.on("error", (err: Error) => errorCallback(err));
 
       // setup timeout
-      let timeoutHandler = setTimeout(() => {
+      let timeoutHandler: ReturnType<typeof setTimeout> | undefined = setTimeout(() => {
         errorCallback(new Error("Timeout waiting for NTP response."));
       }, this.options.replyTimeout);
 
-      client.send(this.createPacket(), port, server, (err) => {
+      client.send(this.createPacket(), port, server, (err: Error | null) => {
         if (hasFinished) {
           return;
         }
@@ -376,13 +389,13 @@ export class NtpTimeSync {
           return;
         }
 
-        client.once("message", function (msg) {
+        client.once("message", function (msg: Buffer) {
           if (hasFinished) {
             return;
           }
 
           clearTimeout(timeoutHandler);
-          timeoutHandler = null;
+          timeoutHandler = undefined;
           client.close();
 
           let parsed: Partial<NtpPacket>;
@@ -413,21 +426,24 @@ export class NtpTimeSync {
     /*
      * Format error
      */
-    if (data.version > this.options.ntpDefaults.version) {
+    if (data.version === undefined || data.version > this.options.ntpDefaults.version) {
       throw new Error("Format error: Expected version " + this.options.ntpDefaults.version + ", got " + data.version);
     }
 
     /*
      * A stratum error occurs if (1) the server has never been
      * synchronized, (2) the server stratum is invalid.
      */
-    if (data.leapIndicator === 3 || data.stratum >= this.options.ntpDefaults.maxStratum) {
+    if (data.leapIndicator === 3 || data.stratum === undefined || data.stratum >= this.options.ntpDefaults.maxStratum) {
       throw new Error("Stratum error: Remote clock is unsynchronized");
     }
 
     /*
      * Verify valid root distance.
      */
+    if (data.rootDelay === undefined || data.rootDispersion === undefined) {
+      throw new Error("Format error: Missing root delay or root dispersion");
+    }
     const rootDelay = (data.rootDelay.getTime() - this.options.ntpDefaults.referenceDate.getTime()) / 1000;
     const rootDispersion = (data.rootDispersion.getTime() - this.options.ntpDefaults.referenceDate.getTime()) / 1000;
     if (rootDelay / 2 + rootDispersion >= this.options.ntpDefaults.maxDispersion) {
@@ -437,7 +453,7 @@ export class NtpTimeSync {
     /*
      * Verify origin timestamp
      */
-    if (data.originTimestamp.getTime() > new Date().getTime()) {
+    if (data.originTimestamp === undefined || data.originTimestamp.getTime() > new Date().getTime()) {
       throw new Error("Format error: Origin timestamp is from the future");
     }
   }

tsconfig.json

@@ -1,11 +1,16 @@
 {
   "compilerOptions": {
     "outDir": "./dist",
+    "rootDir": "./src",
     "allowJs": true,
     "lib": [
       "es2019"
     ],
-    "target": "es5",
+    "module": "commonjs",
+    "target": "es2019",
+    "types": [
+      "node"
+    ],
     "noEmitOnError": true,
     "noImplicitAny": true,
     "noImplicitReturns": true,

yarn.lock

@@ -4,99 +4,99 @@
 
 "@cspotcode/source-map-support@^0.8.0":
   version "0.8.1"
-  resolved "https://registry.yarnpkg.com/@cspotcode/source-map-support/-/source-map-support-0.8.1.tgz#00629c35a688e05a88b1cda684fb9d5e73f000a1"
+  resolved "https://registry.npmjs.org/@cspotcode/source-map-support/-/source-map-support-0.8.1.tgz"
   integrity sha512-IchNf6dN4tHoMFIn/7OE8LWZ19Y6q/67Bmf6vnGREv8RSbBVb9LPJxEcnwrcwX6ixSvaiGoomAUvu4YSxXrVgw==
   dependencies:
     "@jridgewell/trace-mapping" "0.3.9"
 
 "@jridgewell/resolve-uri@^3.0.3":
   version "3.0.7"
-  resolved "https://registry.yarnpkg.com/@jridgewell/resolve-uri/-/resolve-uri-3.0.7.tgz#30cd49820a962aff48c8fffc5cd760151fca61fe"
+  resolved "https://registry.npmjs.org/@jridgewell/resolve-uri/-/resolve-uri-3.0.7.tgz"
   integrity sha512-8cXDaBBHOr2pQ7j77Y6Vp5VDT2sIqWyWQ56TjEq4ih/a4iST3dItRe8Q9fp0rrIl9DoKhWQtUQz/YpOxLkXbNA==
 
 "@jridgewell/sourcemap-codec@^1.4.10":
   version "1.4.13"
-  resolved "https://registry.yarnpkg.com/@jridgewell/sourcemap-codec/-/sourcemap-codec-1.4.13.tgz#b6461fb0c2964356c469e115f504c95ad97ab88c"
+  resolved "https://registry.npmjs.org/@jridgewell/sourcemap-codec/-/sourcemap-codec-1.4.13.tgz"
   integrity sha512-GryiOJmNcWbovBxTfZSF71V/mXbgcV3MewDe3kIMCLyIh5e7SKAeUZs+rMnJ8jkMolZ/4/VsdBmMrw3l+VdZ3w==
 
 "@jridgewell/trace-mapping@0.3.9":
   version "0.3.9"
-  resolved "https://registry.yarnpkg.com/@jridgewell/trace-mapping/-/trace-mapping-0.3.9.tgz#6534fd5933a53ba7cbf3a17615e273a0d1273ff9"
+  resolved "https://registry.npmjs.org/@jridgewell/trace-mapping/-/trace-mapping-0.3.9.tgz"
   integrity sha512-3Belt6tdc8bPgAtbcmdtNJlirVoTmEb5e2gC94PnkwEW9jI6CAHUeoG85tjWP5WquqfavoMtMwiG4P926ZKKuQ==
   dependencies:
     "@jridgewell/resolve-uri" "^3.0.3"
     "@jridgewell/sourcemap-codec" "^1.4.10"
 
 "@tsconfig/node10@^1.0.7":
   version "1.0.8"
-  resolved "https://registry.yarnpkg.com/@tsconfig/node10/-/node10-1.0.8.tgz#c1e4e80d6f964fbecb3359c43bd48b40f7cadad9"
+  resolved "https://registry.npmjs.org/@tsconfig/node10/-/node10-1.0.8.tgz"
   integrity sha512-6XFfSQmMgq0CFLY1MslA/CPUfhIL919M1rMsa5lP2P097N2Wd1sSX0tx1u4olM16fLNhtHZpRhedZJphNJqmZg==
 
 "@tsconfig/node12@^1.0.7":
   version "1.0.9"
-  resolved "https://registry.yarnpkg.com/@tsconfig/node12/-/node12-1.0.9.tgz#62c1f6dee2ebd9aead80dc3afa56810e58e1a04c"
+  resolved "https://registry.npmjs.org/@tsconfig/node12/-/node12-1.0.9.tgz"
   integrity sha512-/yBMcem+fbvhSREH+s14YJi18sp7J9jpuhYByADT2rypfajMZZN4WQ6zBGgBKp53NKmqI36wFYDb3yaMPurITw==
 
 "@tsconfig/node14@^1.0.0":
   version "1.0.1"
-  resolved "https://registry.yarnpkg.com/@tsconfig/node14/-/node14-1.0.1.tgz#95f2d167ffb9b8d2068b0b235302fafd4df711f2"
+  resolved "https://registry.npmjs.org/@tsconfig/node14/-/node14-1.0.1.tgz"
   integrity sha512-509r2+yARFfHHE7T6Puu2jjkoycftovhXRqW328PDXTVGKihlb1P8Z9mMZH04ebyajfRY7dedfGynlrFHJUQCg==
 
 "@tsconfig/node16@^1.0.2":
   version "1.0.2"
-  resolved "https://registry.yarnpkg.com/@tsconfig/node16/-/node16-1.0.2.tgz#423c77877d0569db20e1fc80885ac4118314010e"
+  resolved "https://registry.npmjs.org/@tsconfig/node16/-/node16-1.0.2.tgz"
   integrity sha512-eZxlbI8GZscaGS7kkc/trHTT5xgrjH3/1n2JDwusC9iahPKWMRvRjJSAN5mCXviuTGQ/lHnhvv8Q1YTpnfz9gA==
 
-"@types/node@^18 || ^20 || ^22":
-  version "22.14.0"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-22.14.0.tgz#d3bfa3936fef0dbacd79ea3eb17d521c628bb47e"
-  integrity sha512-Kmpl+z84ILoG+3T/zQFyAJsU6EPTmOCj8/2+83fSN6djd6I4o7uOuGIH6vq3PrjY5BGitSbFuMN18j3iknubbA==
+"@types/node@*", "@types/node@^20 || ^22 || ^24 || ^25":
+  version "25.6.0"
+  resolved "https://registry.npmjs.org/@types/node/-/node-25.6.0.tgz"
+  integrity sha512-+qIYRKdNYJwY3vRCZMdJbPLJAtGjQBudzZzdzwQYkEPQd+PJGixUL5QfvCLDaULoLv+RhT3LDkwEfKaAkgSmNQ==
   dependencies:
-    undici-types "~6.21.0"
+    undici-types "~7.19.0"
 
 acorn-walk@^8.1.1:
   version "8.2.0"
-  resolved "https://registry.yarnpkg.com/acorn-walk/-/acorn-walk-8.2.0.tgz#741210f2e2426454508853a2f44d0ab83b7f69c1"
+  resolved "https://registry.npmjs.org/acorn-walk/-/acorn-walk-8.2.0.tgz"
   integrity sha512-k+iyHEuPgSw6SbuDpGQM+06HQUa04DZ3o+F6CSzXMvvI5KMvnaEqXe+YVe555R9nn6GPt404fos4wcgpw12SDA==
 
 acorn@^8.4.1:
   version "8.7.0"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-8.7.0.tgz#90951fde0f8f09df93549481e5fc141445b791cf"
+  resolved "https://registry.npmjs.org/acorn/-/acorn-8.7.0.tgz"
   integrity sha512-V/LGr1APy+PXIwKebEWrkZPwoeoF+w1jiOBUmuxuiUIaOHtob8Qc9BTrYo7VuI5fR8tqsy+buA2WFooR5olqvQ==
 
 arg@^4.1.0:
   version "4.1.3"
-  resolved "https://registry.yarnpkg.com/arg/-/arg-4.1.3.tgz#269fc7ad5b8e42cb63c896d5666017261c144089"
+  resolved "https://registry.npmjs.org/arg/-/arg-4.1.3.tgz"
   integrity sha512-58S9QDqG0Xx27YwPSt9fJxivjYl432YCwfDMfZ+71RAqUrZef7LrKQZ3LHLOwCS4FLNBplP533Zx895SeOCHvA==
 
 create-require@^1.1.0:
   version "1.1.1"
-  resolved "https://registry.yarnpkg.com/create-require/-/create-require-1.1.1.tgz#c1d7e8f1e5f6cfc9ff65f9cd352d37348756c333"
+  resolved "https://registry.npmjs.org/create-require/-/create-require-1.1.1.tgz"
   integrity sha512-dcKFX3jn0MpIaXjisoRvexIJVEKzaq7z2rZKxf+MSr9TkdmHmsU4m2lcLojrj/FHl8mk5VxMmYA+ftRkP/3oKQ==
 
 diff@^4.0.1:
   version "4.0.2"
-  resolved "https://registry.yarnpkg.com/diff/-/diff-4.0.2.tgz#60f3aecb89d5fae520c11aa19efc2bb982aade7d"
+  resolved "https://registry.npmjs.org/diff/-/diff-4.0.2.tgz"
   integrity sha512-58lmxKSA4BNyLz+HHMUzlOEpg09FV+ev6ZMe3vJihgdxzgcwZ8VoEEPmALCZG9LmqfVoNMMKpttIYTVG6uDY7A==
 
 make-error@^1.1.1:
   version "1.3.6"
-  resolved "https://registry.yarnpkg.com/make-error/-/make-error-1.3.6.tgz#2eb2e37ea9b67c4891f684a1394799af484cf7a2"
+  resolved "https://registry.npmjs.org/make-error/-/make-error-1.3.6.tgz"
   integrity sha512-s8UhlNe7vPKomQhC1qFelMokr/Sc3AgNbso3n74mVPA5LTZwkB9NlXf4XPamLxJE8h0gh73rM94xvwRT2CVInw==
 
 ntp-packet-parser@^0.5.0:
   version "0.5.0"
-  resolved "https://registry.yarnpkg.com/ntp-packet-parser/-/ntp-packet-parser-0.5.0.tgz#2eb098ec3a3a9f8d5388b066d2fa0d87ddc3a2e1"
+  resolved "https://registry.npmjs.org/ntp-packet-parser/-/ntp-packet-parser-0.5.0.tgz"
   integrity sha512-W18iLyaV17jH4inpvSu2gPep2f1Gs3oABra5NXXzG7MXhLcdHqJrJBO23bTMLkRf4HP9SWHL7FEwwtUf6R1q+g==
 
 prettier@3.8.3:
   version "3.8.3"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-3.8.3.tgz#560f2de55bf01b4c0503bc629d5df99b9a1d09b0"
+  resolved "https://registry.npmjs.org/prettier/-/prettier-3.8.3.tgz"
   integrity sha512-7igPTM53cGHMW8xWuVTydi2KO233VFiTNyF5hLJqpilHfmn8C8gPf+PS7dUT64YcXFbiMGZxS9pCSxL/Dxm/Jw==
 
 ts-node@10.9.2:
   version "10.9.2"
-  resolved "https://registry.yarnpkg.com/ts-node/-/ts-node-10.9.2.tgz#70f021c9e185bccdca820e26dc413805c101c71f"
+  resolved "https://registry.npmjs.org/ts-node/-/ts-node-10.9.2.tgz"
   integrity sha512-f0FFpIdcHgn8zcPSbf1dRevwt047YMnaiJM3u2w2RewrB+fob/zePZcrOyQoLMMO7aBIddLcQIEK5dYjkLnGrQ==
   dependencies:
     "@cspotcode/source-map-support" "^0.8.0"
@@ -113,22 +113,22 @@ ts-node@10.9.2:
     v8-compile-cache-lib "^3.0.1"
     yn "3.1.1"
 
-typescript@5.9.3:
-  version "5.9.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.9.3.tgz#5b4f59e15310ab17a216f5d6cf53ee476ede670f"
-  integrity sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==
+typescript@>=2.7, typescript@6.0.3:
+  version "6.0.3"
+  resolved "https://registry.npmjs.org/typescript/-/typescript-6.0.3.tgz"
+  integrity sha512-y2TvuxSZPDyQakkFRPZHKFm+KKVqIisdg9/CZwm9ftvKXLP8NRWj38/ODjNbr43SsoXqNuAisEf1GdCxqWcdBw==
 
-undici-types@~6.21.0:
-  version "6.21.0"
-  resolved "https://registry.yarnpkg.com/undici-types/-/undici-types-6.21.0.tgz#691d00af3909be93a7faa13be61b3a5b50ef12cb"
-  integrity sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==
+undici-types@~7.19.0:
+  version "7.19.2"
+  resolved "https://registry.npmjs.org/undici-types/-/undici-types-7.19.2.tgz"
+  integrity sha512-qYVnV5OEm2AW8cJMCpdV20CDyaN3g0AjDlOGf1OW4iaDEx8MwdtChUp4zu4H0VP3nDRF/8RKWH+IPp9uW0YGZg==
 
 v8-compile-cache-lib@^3.0.1:
   version "3.0.1"
-  resolved "https://registry.yarnpkg.com/v8-compile-cache-lib/-/v8-compile-cache-lib-3.0.1.tgz#6336e8d71965cb3d35a1bbb7868445a7c05264bf"
+  resolved "https://registry.npmjs.org/v8-compile-cache-lib/-/v8-compile-cache-lib-3.0.1.tgz"
   integrity sha512-wa7YjyUGfNZngI/vtK0UHAN+lgDCxBPCylVXGp0zu59Fz5aiGtNXaq3DhIov063MorB+VfufLh3JlF2KdTK3xg==
 
 yn@3.1.1:
   version "3.1.1"
-  resolved "https://registry.yarnpkg.com/yn/-/yn-3.1.1.tgz#1e87401a09d767c1d5eab26a6e4c185182d2eb50"
+  resolved "https://registry.npmjs.org/yn/-/yn-3.1.1.tgz"
   integrity sha512-Ux4ygGWsu2c7isFWe8Yu1YluJmqVhxqK2cLXNQA5AcC3QfbGNpM7fu0Y8b/z16pXLnFxZYvWhd3fhBY9DLmC6Q==