DarkflameServer/dNet/PacketUtils.cpp

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#include "PacketUtils.h"
#include <vector>
#include <fstream>
#include "dLogger.h"
#include "Game.h"
uint16_t PacketUtils::ReadU16(uint32_t startLoc, Packet* packet) {
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if (startLoc + 2 > packet->length) return 0;
std::vector<unsigned char> t;
for (uint32_t i = startLoc; i < startLoc + 2; i++) t.push_back(packet->data[i]);
return *(uint16_t*)t.data();
}
uint32_t PacketUtils::ReadU32(uint32_t startLoc, Packet* packet) {
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if (startLoc + 4 > packet->length) return 0;
std::vector<unsigned char> t;
for (uint32_t i = startLoc; i < startLoc + 4; i++) {
t.push_back(packet->data[i]);
}
return *(uint32_t*)t.data();
}
uint64_t PacketUtils::ReadU64(uint32_t startLoc, Packet* packet) {
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if (startLoc + 8 > packet->length) return 0;
std::vector<unsigned char> t;
for (uint32_t i = startLoc; i < startLoc + 8; i++) t.push_back(packet->data[i]);
return *(uint64_t*)t.data();
}
int64_t PacketUtils::ReadS64(uint32_t startLoc, Packet* packet) {
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if (startLoc + 8 > packet->length) return 0;
std::vector<unsigned char> t;
for (size_t i = startLoc; i < startLoc + 8; i++) t.push_back(packet->data[i]);
return *(int64_t*)t.data();
}
std::string PacketUtils::ReadString(uint32_t startLoc, Packet* packet, bool wide, uint32_t maxLen) {
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std::string readString = "";
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if (wide) maxLen *= 2;
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if (packet->length > startLoc) {
uint32_t i = 0;
while (packet->data[startLoc + i] != '\0' && packet->length > (uint32_t)(startLoc + i) && maxLen > i) {
readString.push_back(packet->data[startLoc + i]);
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if (wide) {
i += 2; // Wide-char string
} else {
i++; // Regular string
}
}
}
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return readString;
}
//! Saves a packet to the filesystem
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void PacketUtils::SavePacket(const std::string& filename, const char* data, size_t length) {
//If we don't log to the console, don't save the bin files either. This takes up a lot of time.
if (!Game::logger->GetIsLoggingToConsole()) return;
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std::string path = "packets/" + filename;
std::ofstream file(path, std::ios::binary);
if (!file.is_open()) return;
file.write(data, length);
file.close();
}