From 449f84133ad54b1b926540efcffb444bf0ae1d10 Mon Sep 17 00:00:00 2001
From: 9seconds <nineseconds@yandex.ru>
Date: Thu, 26 Feb 2026 12:31:30 +0100
Subject: [PATCH] Do not panic if no addresses were found

---
 mtglib/internal/dc/updater.go | 2 +-
 mtglib/proxy.go               | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/mtglib/internal/dc/updater.go b/mtglib/internal/dc/updater.go
index 72adf38..e8b3339 100644
--- a/mtglib/internal/dc/updater.go
+++ b/mtglib/internal/dc/updater.go
@@ -32,7 +32,7 @@ func (u *updater) run(ctx context.Context, callback func() error) {
 		for {
 			u.logger.Info("start update")
 			if err := callback(); err != nil {
-				u.logger.WarningError("cannot update: %w", err)
+				u.logger.WarningError("cannot update", err)
 			}
 			u.logger.Info("updated")
 
diff --git a/mtglib/proxy.go b/mtglib/proxy.go
index a0e4965..a741a00 100644
--- a/mtglib/proxy.go
+++ b/mtglib/proxy.go
@@ -252,6 +252,9 @@ func (p *Proxy) doTelegramCall(ctx *streamContext) error {
 	if err != nil {
 		return fmt.Errorf("no addresses to call: %w", err)
 	}
+	if conn == nil {
+		return fmt.Errorf("no available addresses for DC %d", ctx.dc)
+	}
 
 	tgConn, err := foundAddr.Obfuscator.SendHandshake(conn, ctx.dc)
 	if err != nil {