ffe4146a12
Batch #2187 by ntrl: 0 byte-identical, 1 confirmed by peer review. - fn_22267 SendExecutableDigest: logic confirmed by peer review Reviewed-by: ragnarok-clanker Adds to the build: Source/Network/ExecutableDigestPacket.cpp
62 lines
1.8 KiB
C++
62 lines
1.8 KiB
C++
#include "Network/ExecutableDigestPacket.h"
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#include "Network/Connection/Connection.h"
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#include "Network/Packets/PacketLengths.h"
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#include "Utility/Md5State.h"
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#include <cstdio>
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#include <cstdint>
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#include <cstring>
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namespace {
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#pragma pack(push, 1)
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struct ExecutableDigestPacket {
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/* 0000 */ std::int16_t id;
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/* 0002 */ unsigned char digest[16];
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};
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#pragma pack(pop)
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static_assert(sizeof(ExecutableDigestPacket) == 18);
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}
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// OFFSET: 0x00D8D790
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// FUNCTION: fn_22267
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void SendExecutableDigest(const int& serviceType, const int& serviceMode, HINSTANCE instance,
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CConnection& connection, const PacketLengths& lengths) {
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if (serviceType != 6 && (serviceType != 0 || serviceMode != 1)) {
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return;
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}
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ExecutableDigestPacket packet;
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packet.id = 0x0204;
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MD5State md5;
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md5.Init();
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char filename[MAX_PATH];
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GetModuleFileNameA(instance, filename, MAX_PATH);
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FILE* file = std::fopen(filename, "rb");
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if (!file) {
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return;
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}
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unsigned char buffer[1024];
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while (!std::feof(file)) {
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const int bytes = std::fread(buffer, 1, sizeof(buffer), file);
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md5.Append(buffer, bytes);
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}
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md5.Finish(packet.digest);
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if (serviceType == 0) {
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if (serviceMode == 1) {
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const std::uint32_t digest[4] = {0x912CD182, 0x8FD45A4F, 0x7ECF6FD9, 0x2D49CCF4};
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std::memcpy(packet.digest, digest, sizeof(digest));
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} else if (serviceMode == 0) {
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const std::uint32_t digest[4] = {0x3164E365, 0x11031C03, 0x136D501E, 0x7A2D6939};
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std::memcpy(packet.digest, digest, sizeof(digest));
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} else {
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std::memset(packet.digest, 0, sizeof(packet.digest));
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}
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} else if (serviceType == 6 && serviceMode == 1) {
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const std::uint32_t digest[4] = {0xC2940AC7, 0x9A38CC7A, 0x3954F547, 0x39D0A47C};
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std::memcpy(packet.digest, digest, sizeof(digest));
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}
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connection.Send(lengths.FixedLength(packet.id), &packet);
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}
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