From b38f82523f70579f2a81ccbb7bdf1c15488592fa Mon Sep 17 00:00:00 2001
From: Him188 <Him188@mamoe.net>
Date: Sun, 2 Feb 2020 18:04:19 +0800
Subject: [PATCH] Fix expcetion when length=0

---
 .../mirai/qqandroid/network/QQAndroidBotNetworkHandler.kt    | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/QQAndroidBotNetworkHandler.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/QQAndroidBotNetworkHandler.kt
index 42e29a2f7..af54ecc2c 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/QQAndroidBotNetworkHandler.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/QQAndroidBotNetworkHandler.kt
@@ -276,6 +276,11 @@ internal class QQAndroidBotNetworkHandler(bot: QQAndroidBot) : BotNetworkHandler
             while (rawInput.remaining >= length) {
                 parsePacketAsync(rawInput.readPacket(length))
 
+                if (rawInput.remaining == 0L) {
+                    cachedPacket.value = null // 表示包长度正好
+                    cachedPacketTimeoutJob?.cancel()
+                    return
+                }
                 length = rawInput.readInt() - 4
             }