feat(NODE-7317): use BSON.NumberUtils to determine endianness (#4808)

Author: durran

package-lock.json

@@ -26,7 +26,7 @@
   },
   "dependencies": {
     "@mongodb-js/saslprep": "^1.3.0",
-    "bson": "^7.0.0",
+    "bson": "^7.1.1",
     "mongodb-connection-string-url": "^7.0.0"
   },
   "peerDependencies": {

package.json

@@ -22,6 +22,7 @@ export {
   Long,
   MaxKey,
   MinKey,
+  NumberUtils,
   ObjectId,
   type ObjectIdLike,
   serialize,

src/bson.ts

@@ -1,7 +1,7 @@
 import * as os from 'os';
 import * as process from 'process';
 
-import { BSON, type Document, Int32 } from '../../bson';
+import { BSON, type Document, Int32, NumberUtils } from '../../bson';
 import { MongoInvalidArgumentError } from '../../error';
 import type { DriverInfo, MongoOptions } from '../../mongo_client';
 import { fileIsAccessible } from '../../utils';
@@ -336,17 +336,18 @@ declare const Bun: { (): void; version?: string } | undefined;
  * with a future change to these global objects.
  */
 function getRuntimeInfo(): string {
+  const endianness = NumberUtils.isBigEndian ? 'BE' : 'LE';
   if ('Deno' in globalThis) {
     const version = typeof Deno?.version?.deno === 'string' ? Deno?.version?.deno : '0.0.0-unknown';
 
-    return `Deno v${version}, ${os.endianness()}`;
+    return `Deno v${version}, ${endianness}`;
   }
 
   if ('Bun' in globalThis) {
     const version = typeof Bun?.version === 'string' ? Bun?.version : '0.0.0-unknown';
 
-    return `Bun v${version}, ${os.endianness()}`;
+    return `Bun v${version}, ${endianness}`;
   }
 
-  return `Node.js ${process.version}, ${os.endianness()}`;
+  return `Node.js ${process.version}, ${endianness}`;
 }