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Merge pull request #42 from dongresource/bugfix

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Fixed a use-after-free and a memory leak.
This commit is contained in:
CPunch 2020-08-25 17:42:22 -05:00 committed by GitHub
commit 60be814e16
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3 changed files with 6 additions and 6 deletions
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2
src/CNProtocol.cpp
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@ -200,7 +200,7 @@ void CNSocket::step() {
if (activelyReading && readBufferIndex - readSize <= 0) {
// decrypt readBuffer and copy to CNPacketData
CNSocketEncryption::decryptData(readBuffer, (uint8_t*)(&EKey), readSize);
CNSocketEncryption::decryptData((uint8_t*)&readBuffer, (uint8_t*)(&EKey), readSize);
void* tmpBuf = xmalloc(readSize-sizeof(int32_t));
memcpy(tmpBuf, readBuffer+sizeof(uint32_t), readSize-sizeof(int32_t));

2
src/CNProtocol.hpp
View File

@ -104,7 +104,7 @@ private:
uint64_t EKey;
uint64_t FEKey;
int32_t readSize = 0;
uint8_t* readBuffer = new uint8_t[MAX_PACKETSIZE];
uint8_t readBuffer[MAX_PACKETSIZE];
int readBufferIndex = 0;
bool activelyReading = false;
bool alive = true;

8
src/PlayerManager.cpp
View File

@ -55,18 +55,18 @@ void PlayerManager::removePlayer(CNSocket* key) {
for (CNSocket* otherSock : players[key].viewable) {
players[otherSock].viewable.remove(key); // gone
// now sent PC_EXIT packet
// now send PC_EXIT packet
sP_FE2CL_PC_EXIT exitPacket;
exitPacket.iID = players[key].plr->iID;
otherSock->sendPacket((void*)&exitPacket, P_FE2CL_PC_EXIT, sizeof(sP_FE2CL_PC_EXIT));
}
delete cachedView.plr;
players.erase(key);
std::cout << U16toU8(cachedView.plr->PCStyle.szFirstName) << U16toU8(cachedView.plr->PCStyle.szLastName) << " has left!" << std::endl;
std::cout << players.size() << " players" << std::endl;
delete cachedView.plr;
players.erase(key);
}
void PlayerManager::updatePlayerPosition(CNSocket* sock, int X, int Y, int Z) {