fix price and modular

.output/server/node_modules/detect-libc/lib/filesystem.js

@@ -5,37 +5,47 @@
 
 const fs = require('fs');
 
-/**
- * The path where we can find the ldd
- */
 const LDD_PATH = '/usr/bin/ldd';
+const SELF_PATH = '/proc/self/exe';
+const MAX_LENGTH = 2048;
 
 /**
  * Read the content of a file synchronous
  *
  * @param {string} path
- * @returns {string}
+ * @returns {Buffer}
  */
-const readFileSync = (path) => fs.readFileSync(path, 'utf-8');
+const readFileSync = (path) => {
+  const fd = fs.openSync(path, 'r');
+  const buffer = Buffer.alloc(MAX_LENGTH);
+  const bytesRead = fs.readSync(fd, buffer, 0, MAX_LENGTH, 0);
+  fs.close(fd, () => {});
+  return buffer.subarray(0, bytesRead);
+};
 
 /**
  * Read the content of a file
  *
  * @param {string} path
- * @returns {Promise<string>}
+ * @returns {Promise<Buffer>}
  */
 const readFile = (path) => new Promise((resolve, reject) => {
-  fs.readFile(path, 'utf-8', (err, data) => {
+  fs.open(path, 'r', (err, fd) => {
     if (err) {
       reject(err);
     } else {
-      resolve(data);
+      const buffer = Buffer.alloc(MAX_LENGTH);
+      fs.read(fd, buffer, 0, MAX_LENGTH, 0, (_, bytesRead) => {
+        resolve(buffer.subarray(0, bytesRead));
+        fs.close(fd, () => {});
+      });
     }
   });
 });
 
 module.exports = {
   LDD_PATH,
+  SELF_PATH,
   readFileSync,
   readFile
 };