From c00420facbc3023a6d95943e763c7e926431be9d Mon Sep 17 00:00:00 2001
From: Palapeli <26661008+mkwcat@users.noreply.github.com>
Date: Thu, 9 Apr 2026 13:11:04 -0400
Subject: [PATCH] NAS: Use errors.Is for os instead of == operator

---
 nas/payload.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/nas/payload.go b/nas/payload.go
index 1db1b0f..d3c23ff 100644
--- a/nas/payload.go
+++ b/nas/payload.go
@@ -9,6 +9,7 @@ import (
 	"crypto/x509"
 	"encoding/hex"
 	"encoding/pem"
+	"errors"
 	"io"
 	"net/http"
 	"net/url"
@@ -29,7 +30,7 @@ func downloadStage1(w http.ResponseWriter, r *http.Request) {
 	}
 	dat, err := os.ReadFile(path)
 	if err != nil {
-		if err == os.ErrNotExist {
+		if errors.Is(err, os.ErrNotExist) {
 			replyHTTPError(w, http.StatusNotFound, "404 Not Found")
 			return
 		}