fs: call the callback with an error if writeSync fails

Catch SyncWriteStream write file error.

Fixes: #47948
Signed-off-by: killagu <[email protected]>
PR-URL: #47949
Reviewed-By: Luigi Pinca <[email protected]>

Author: killagu

lib/internal/fs/sync_write_stream.js

@@ -23,7 +23,12 @@ ObjectSetPrototypeOf(SyncWriteStream.prototype, Writable.prototype);
 ObjectSetPrototypeOf(SyncWriteStream, Writable);
 
 SyncWriteStream.prototype._write = function(chunk, encoding, cb) {
-  writeSync(this.fd, chunk, 0, chunk.length);
+  try {
+    writeSync(this.fd, chunk, 0, chunk.length);
+  } catch (e) {
+    cb(e);
+    return;
+  }
   cb();
 };
 

test/parallel/test-internal-fs-syncwritestream.js

@@ -79,3 +79,15 @@ const filename = path.join(tmpdir.path, 'sync-write-stream.txt');
     assert.strictEqual(stream.fd, null);
   }));
 }
+
+// Verify that an error on _write() triggers an 'error' event.
+{
+  const fd = fs.openSync(filename, 'w');
+  const stream = new SyncWriteStream(fd);
+
+  assert.strictEqual(stream.fd, fd);
+  stream._write({}, null, common.mustCall((err) => {
+    assert(err);
+    fs.closeSync(fd);
+  }));
+}