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authorMattes D <github@xoft.cz>2014-12-21 20:01:42 +0100
committerMattes D <github@xoft.cz>2014-12-21 20:01:42 +0100
commitd4c3821eca6249399a2d690c3c8735526d1d5a4c (patch)
tree0aa700cc05c7cafb8d420bf83392ad732de653ab /src
parentFixed a possible division by zero. (diff)
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Diffstat (limited to 'src')
-rw-r--r--src/Protocol/Protocol17x.cpp7
-rw-r--r--src/Protocol/Protocol18x.cpp8
2 files changed, 11 insertions, 4 deletions
diff --git a/src/Protocol/Protocol17x.cpp b/src/Protocol/Protocol17x.cpp
index 1e5fe5586..1e33ec433 100644
--- a/src/Protocol/Protocol17x.cpp
+++ b/src/Protocol/Protocol17x.cpp
@@ -1524,7 +1524,7 @@ void cProtocol172::AddReceivedData(const char * a_Data, size_t a_Size)
AString PacketData;
bb.ReadAll(PacketData);
bb.ResetRead();
- bb.ReadVarInt(PacketType);
+ bb.ReadVarInt(PacketType); // We have already read the packet type once, it will be there again.
ASSERT(PacketData.size() > 0); // We have written an extra NUL, so there had to be at least one byte read
PacketData.resize(PacketData.size() - 1);
AString PacketDataHex;
@@ -1753,7 +1753,10 @@ void cProtocol172::HandlePacketLoginEncryptionResponse(cByteBuffer & a_ByteBuffe
{
return;
}
- a_ByteBuffer.ReadBEShort(EncNonceLength);
+ if (!a_ByteBuffer.ReadBEShort(EncNonceLength))
+ {
+ return;
+ }
AString EncNonce;
if (!a_ByteBuffer.ReadString(EncNonce, EncNonceLength))
{
diff --git a/src/Protocol/Protocol18x.cpp b/src/Protocol/Protocol18x.cpp
index ce580d73e..1a13f4f7c 100644
--- a/src/Protocol/Protocol18x.cpp
+++ b/src/Protocol/Protocol18x.cpp
@@ -1723,7 +1723,11 @@ void cProtocol180::AddReceivedData(const char * a_Data, size_t a_Size)
{
// Decompress the data:
AString CompressedData;
- m_ReceivedData.ReadString(CompressedData, CompressedSize);
+ if (!m_ReceivedData.ReadString(CompressedData, CompressedSize))
+ {
+ m_Client->Kick("Compression failure");
+ return;
+ }
InflateString(CompressedData.data(), CompressedSize, UncompressedData);
PacketLen = UncompressedData.size();
}
@@ -1765,7 +1769,7 @@ void cProtocol180::AddReceivedData(const char * a_Data, size_t a_Size)
AString PacketData;
bb.ReadAll(PacketData);
bb.ResetRead();
- bb.ReadVarInt(PacketType);
+ bb.ReadVarInt(PacketType); // We have already read the packet type once, it will be there again
ASSERT(PacketData.size() > 0); // We have written an extra NUL, so there had to be at least one byte read
PacketData.resize(PacketData.size() - 1);
AString PacketDataHex;