From d9fa36210b121ebd24bde4048aef72712af0ea58 Mon Sep 17 00:00:00 2001
From: orignal <i2porignal@yandex.ru>
Date: Sat, 19 Sep 2026 07:33:47 -0400
Subject: [PATCH] check if BEconded biffer is empty

---
 libi2pd_client/Torrents.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/libi2pd_client/Torrents.cpp b/libi2pd_client/Torrents.cpp
index a6752e73..b055f8e8 100644
--- a/libi2pd_client/Torrents.cpp
+++ b/libi2pd_client/Torrents.cpp
@@ -49,7 +49,7 @@ namespace torrents
 
 	static std::pair<int64_t, size_t> ExtractInteger (std::string_view buf)
 	{
-		if (buf[0] == 'i')
+		if (!buf.empty () && buf[0] == 'i')
 		{
 			auto pos = buf.find ('e');
 			if (pos != std::string_view::npos)
@@ -66,7 +66,7 @@ namespace torrents
 	static size_t ParseBEncoded (std::string_view buf); // recursive
 	static size_t ParseDictionary (std::string_view buf, std::function<size_t (std::string_view key, std::string_view buf)> handler = nullptr)
 	{
-		if (buf[0] != 'd') return 0;
+		if (buf.empty () || buf[0] != 'd') return 0;
 		buf = buf.substr (1);
 		size_t len = 1;
 		while (!buf.empty () && buf[0] != 'e')
@@ -91,7 +91,7 @@ namespace torrents
 
 	static size_t ParseList (std::string_view buf, std::function<size_t (std::string_view buf)> handler = nullptr)
 	{
-		if (buf[0] != 'l') return 0 ;
+		if (buf.empty () || buf[0] != 'l') return 0;
 		buf = buf.substr (1);
 		size_t len = 1;
 		while (!buf.empty () && buf[0] != 'e')