message: src/main.cpp: endian compatibility in packet checksum check
  backports bitcoin@556814ec4ec7e2c5a1b441f8b9a49dbf715fec6b
diff: @@ -6066,8 +6066,7 @@ bool ProcessMessages(CNode* pfrom)
  // Checksum
  CDataStream& vRecv = msg.vRecv;
  uint256 hash = Hash(vRecv.begin(), vRecv.begin() + nMessageSize);
  - unsigned int nChecksum = 0;
  - memcpy(&nChecksum, &hash, sizeof(nChecksum));
  + unsigned int nChecksum = ReadLE32((unsigned char*)&hash);
  if (nChecksum != hdr.nChecksum) {
  LogPrintf("ProcessMessages(%s, %u bytes): CHECKSUM ERROR nChecksum=%08x hdr.nChecksum=%08x\n",
  SanitizeString(strCommand), nMessageSize, nChecksum, hdr.nChecksum);
  