Merge pull request #5833

[VerusCoin.git] / src / protocol.h

diff --git a/src/protocol.h b/src/protocol.h
index f8394ce52fd042e10f151e5132e1e28f4ecab734..fd23eae1fc6e3635b5b58f5ff958d2825461f1e6 100644 (file)
--- a/src/protocol.h
+++ b/src/protocol.h
@@ -29,11 +29,13 @@
 class CMessageHeader
 {
 public:
-    CMessageHeader();
-    CMessageHeader(const char* pszCommand, unsigned int nMessageSizeIn);
+    typedef unsigned char MessageStartChars[MESSAGE_START_SIZE];
+
+    CMessageHeader(const MessageStartChars& pchMessageStartIn);
+    CMessageHeader(const MessageStartChars& pchMessageStartIn, const char* pszCommand, unsigned int nMessageSizeIn);
 
     std::string GetCommand() const;
-    bool IsValid() const;
+    bool IsValid(const MessageStartChars& messageStart) const;
 
     ADD_SERIALIZE_METHODS;
 
@@ -65,7 +67,14 @@ public:
 
 /** nServices flags */
 enum {
+    // NODE_NETWORK means that the node is capable of serving the block chain. It is currently
+    // set by all Bitcoin Core nodes, and is unset by SPV clients or other peers that just want
+    // network services but don't provide them.
     NODE_NETWORK = (1 << 0),
+    // NODE_GETUTXO means the node is capable of responding to the getutxo protocol request.
+    // Bitcoin Core does not support this but a patch set called Bitcoin XT does.
+    // See BIP 64 for details on how this is implemented.
+    NODE_GETUTXO = (1 << 1),
 
     // Bits 24-31 are reserved for temporary experiments. Just pick a bit that
     // isn't getting used, or one not being used much, and notify the