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authorMattes D <github@xoft.cz>2015-01-03 22:23:49 +0100
committerMattes D <github@xoft.cz>2015-01-03 22:24:15 +0100
commit06c2669cf6b03feb15990004087e882ac846b061 (patch)
treecee462d333d82d86104306da7a64e8cfc3345caf /src/Protocol
parentcByteBuffer: Improved SingleThreadAccessChecker performance. (diff)
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Diffstat (limited to '')
-rw-r--r--src/Protocol/Protocol17x.cpp11
-rw-r--r--src/Protocol/Protocol18x.cpp10
2 files changed, 21 insertions, 0 deletions
diff --git a/src/Protocol/Protocol17x.cpp b/src/Protocol/Protocol17x.cpp
index 34103ea5a..4e985355a 100644
--- a/src/Protocol/Protocol17x.cpp
+++ b/src/Protocol/Protocol17x.cpp
@@ -2242,6 +2242,7 @@ void cProtocol172::HandleVanillaPluginMessage(cByteBuffer & a_ByteBuffer, const
{
if (a_Channel == "MC|AdvCdm")
{
+ size_t BeginningSpace = a_ByteBuffer.GetReadableSpace();
HANDLE_READ(a_ByteBuffer, ReadByte, Byte, Mode);
switch (Mode)
{
@@ -2265,6 +2266,16 @@ void cProtocol172::HandleVanillaPluginMessage(cByteBuffer & a_ByteBuffer, const
return;
}
} // switch (Mode)
+
+ // Read the remainder of the packet (Vanilla sometimes sends bogus data at the end of the packet; #1692):
+ size_t BytesRead = BeginningSpace - a_ByteBuffer.GetReadableSpace();
+ if (BytesRead < static_cast<size_t>(a_PayloadLength))
+ {
+ LOGD("Protocol 1.7: Skipping garbage data at the end of a vanilla MC|AdvCdm packet, %u bytes",
+ a_PayloadLength - BytesRead
+ );
+ a_ByteBuffer.SkipRead(a_PayloadLength - BytesRead);
+ }
return;
}
else if (a_Channel == "MC|Brand")
diff --git a/src/Protocol/Protocol18x.cpp b/src/Protocol/Protocol18x.cpp
index 72827ac47..21b098735 100644
--- a/src/Protocol/Protocol18x.cpp
+++ b/src/Protocol/Protocol18x.cpp
@@ -2331,6 +2331,16 @@ void cProtocol180::HandlePacketPluginMessage(cByteBuffer & a_ByteBuffer)
if (Channel.substr(0, 3) == "MC|")
{
HandleVanillaPluginMessage(a_ByteBuffer, Channel);
+
+ // Skip any unread data (vanilla sometimes sends garbage at the end of a packet; #1692):
+ if (a_ByteBuffer.GetReadableSpace() > 1)
+ {
+ LOGD("Protocol 1.8: Skipping garbage data at the end of a vanilla PluginMessage packet, %u bytes",
+ a_ByteBuffer.GetReadableSpace() - 1
+ );
+ a_ByteBuffer.SkipRead(a_ByteBuffer.GetReadableSpace() - 1);
+ }
+
return;
}