From a68dd85c6e51bc662ff96f250d790eea8b6ef606 Mon Sep 17 00:00:00 2001
From: MultiMote <contact@mmote.ru>
Date: Wed, 9 Oct 2024 14:44:34 +0300
Subject: [PATCH] Fix printer serial number conversion for old devices
---
src/packets/abstraction.ts | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/src/packets/abstraction.ts b/src/packets/abstraction.ts
index 5b9c43e..bea5925 100644
--- a/src/packets/abstraction.ts
+++ b/src/packets/abstraction.ts
@@ -306,7 +306,16 @@ export class Abstraction {
public async getPrinterSerialNumber(): Promise<string> {
const packet = await this.send(PacketGenerator.getPrinterInfo(PrinterInfoType.SerialNumber));
Validators.u8ArrayLengthAtLeast(packet.data, 1);
- return Utils.u8ArrayToString(packet.data);
+
+ if (packet.data.length < 4) {
+ return "-1";
+ }
+
+ if (packet.data.length >= 8) {
+ return Utils.u8ArrayToString(packet.data);
+ }
+
+ return Utils.bufToHex(packet.data.slice(0, 4), "").toUpperCase();
}
public async getPrinterBluetoothMacAddress(): Promise<string> {