From 6e4c7f0eaae72a5997ed1fd668e6ec006e9e4342 Mon Sep 17 00:00:00 2001
From: timoxa0 <tima012007@gmail.com>
Date: Sun, 16 Jun 2024 17:41:56 +0500
Subject: [PATCH] Add GerVar

---
 fastboot/FastbootDevice.go | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/fastboot/FastbootDevice.go b/fastboot/FastbootDevice.go
index a8ead34..30bfb02 100644
--- a/fastboot/FastbootDevice.go
+++ b/fastboot/FastbootDevice.go
@@ -1,6 +1,7 @@
 package fastboot
 
 import (
+	"errors"
 	"fmt"
 	"log"
 
@@ -21,6 +22,12 @@ var Status = struct {
 	INFO: "INFO",
 }
 
+var Error = struct {
+	VarNotFound error
+}{
+	VarNotFound: errors.New("Variable not found"),
+}
+
 type FastbootDevice struct {
 	Serial string
 	Device *gousb.Device
@@ -148,6 +155,18 @@ func (d *FastbootDevice) Recv() (FastbootResponseStatus, []byte, error) {
 	return status, data[4:], nil
 }
 
+func (d *FastbootDevice) GerVar(variable string) (string, error) {
+	d.Send([]byte(fmt.Sprintf("getvar:%s", variable)))
+	status, resp, err := d.Recv()
+	if status == Status.FAIL {
+		err = Error.VarNotFound
+	}
+	if err != nil {
+		return "", err
+	}
+	return string(resp), nil
+}
+
 func (d *FastbootDevice) BootImage(data []byte) error {
 	err := d.download(data)
 	if err != nil {