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net: log an error rather than asserting if send version is misused

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Also cleaned up the comments and moved from the header to the .cpp so that
logging headers aren't needed from net.h
This commit is contained in:
Cory Fields 2017-02-02 14:33:41 -05:00
parent 7a8c251901
commit 08bb6f4ed4
2 changed files with 29 additions and 19 deletions
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27
src/net.cpp
View file

@ -689,6 +689,33 @@ bool CNode::ReceiveMsgBytes(const char *pch, unsigned int nBytes, bool& complete
return true;
}
void CNode::SetSendVersion(int nVersionIn)
{
// Send version may only be changed in the version message, and
// only one version message is allowed per session. We can therefore
// treat this value as const and even atomic as long as it's only used
// once a version message has been successfully processed. Any attempt to
// set this twice is an error.
if (nSendVersion != 0) {
error("Send version already set for node: %i. Refusing to change from %i to %i", id, nSendVersion, nVersionIn);
} else {
nSendVersion = nVersionIn;
}
}
int CNode::GetSendVersion() const
{
// The send version should always be explicitly set to
// INIT_PROTO_VERSION rather than using this value until SetSendVersion
// has been called.
if (nSendVersion == 0) {
error("Requesting unset send version for node: %i. Using %i", id, INIT_PROTO_VERSION);
return INIT_PROTO_VERSION;
}
return nSendVersion;
}
int CNetMessage::readHeader(const char *pch, unsigned int nBytes)
{
// copy data to temporary parsing buffer

21
src/net.h
View file

@ -723,25 +723,8 @@ public:
{
return nRecvVersion;
}
void SetSendVersion(int nVersionIn)
{
// Send version may only be changed in the version message, and
// only one version message is allowed per session. We can therefore
// treat this value as const and even atomic as long as it's only used
// once the handshake is complete. Any attempt to set this twice is an
// error.
assert(nSendVersion == 0);
nSendVersion = nVersionIn;
}
int GetSendVersion() const
{
// The send version should always be explicitly set to
// INIT_PROTO_VERSION rather than using this value until the handshake
// is complete.
assert(nSendVersion != 0);
return nSendVersion;
}
void SetSendVersion(int nVersionIn);
int GetSendVersion() const;
CNode* AddRef()
{