diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/init.cpp | 7 | ||||
| -rw-r--r-- | src/main.cpp | 2 | ||||
| -rw-r--r-- | src/net.cpp | 3 | ||||
| -rw-r--r-- | src/net.h | 5 | ||||
| -rw-r--r-- | src/rpcnet.cpp | 3 |
5 files changed, 16 insertions, 4 deletions
diff --git a/src/init.cpp b/src/init.cpp index c92e9a7692..ef1c39db25 100644 --- a/src/init.cpp +++ b/src/init.cpp @@ -1020,6 +1020,13 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler) RegisterNodeSignals(GetNodeSignals()); + // format user agent, check total size + strSubVersion = FormatSubVersion(CLIENT_NAME, CLIENT_VERSION, mapMultiArgs.count("-uacomment") ? mapMultiArgs["-uacomment"] : std::vector<string>()); + if (strSubVersion.size() > MAX_SUBVERSION_LENGTH) { + return InitError(strprintf("Total length of network version string %i exceeds maximum of %i characters. Reduce the number and/or size of uacomments.", + strSubVersion.size(), MAX_SUBVERSION_LENGTH)); + } + if (mapArgs.count("-onlynet")) { std::set<enum Network> nets; BOOST_FOREACH(const std::string& snet, mapMultiArgs["-onlynet"]) { diff --git a/src/main.cpp b/src/main.cpp index 14f36762c9..52d543c117 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -3898,7 +3898,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, if (!vRecv.empty()) vRecv >> addrFrom >> nNonce; if (!vRecv.empty()) { - vRecv >> LIMITED_STRING(pfrom->strSubVer, 256); + vRecv >> LIMITED_STRING(pfrom->strSubVer, MAX_SUBVERSION_LENGTH); pfrom->cleanSubVer = SanitizeString(pfrom->strSubVer); } if (!vRecv.empty()) diff --git a/src/net.cpp b/src/net.cpp index 5d413697bf..e4ead3c92e 100644 --- a/src/net.cpp +++ b/src/net.cpp @@ -83,6 +83,7 @@ CAddrMan addrman; int nMaxConnections = DEFAULT_MAX_PEER_CONNECTIONS; int nWhiteConnections = 0; bool fAddressesInitialized = false; +std::string strSubVersion; vector<CNode*> vNodes; CCriticalSection cs_vNodes; @@ -445,7 +446,7 @@ void CNode::PushVersion() else LogPrint("net", "send version message: version %d, blocks=%d, us=%s, peer=%d\n", PROTOCOL_VERSION, nBestHeight, addrMe.ToString(), id); PushMessage("version", PROTOCOL_VERSION, nLocalServices, nTime, addrYou, addrMe, - nLocalHostNonce, FormatSubVersion(CLIENT_NAME, CLIENT_VERSION, std::vector<string>()), nBestHeight, true); + nLocalHostNonce, strSubVersion, nBestHeight, true); } @@ -46,6 +46,8 @@ static const unsigned int MAX_INV_SZ = 50000; static const unsigned int MAX_ADDR_TO_SEND = 1000; /** Maximum length of incoming protocol messages (no message over 2 MiB is currently acceptable). */ static const unsigned int MAX_PROTOCOL_MESSAGE_LENGTH = 2 * 1024 * 1024; +/** Maximum length of strSubVer in `version` message */ +static const unsigned int MAX_SUBVERSION_LENGTH = 256; /** -listen default */ static const bool DEFAULT_LISTEN = true; /** -upnp default */ @@ -168,6 +170,9 @@ extern CCriticalSection cs_vAddedNodes; extern NodeId nLastNodeId; extern CCriticalSection cs_nLastNodeId; +/** Subversion as sent to the P2P network in `version` messages */ +extern std::string strSubVersion; + struct LocalServiceInfo { int nScore; int nPort; diff --git a/src/rpcnet.cpp b/src/rpcnet.cpp index d51aa50305..56ec59171d 100644 --- a/src/rpcnet.cpp +++ b/src/rpcnet.cpp @@ -443,8 +443,7 @@ UniValue getnetworkinfo(const UniValue& params, bool fHelp) UniValue obj(UniValue::VOBJ); obj.push_back(Pair("version", CLIENT_VERSION)); - obj.push_back(Pair("subversion", - FormatSubVersion(CLIENT_NAME, CLIENT_VERSION, std::vector<string>()))); + obj.push_back(Pair("subversion", strSubVersion)); obj.push_back(Pair("protocolversion",PROTOCOL_VERSION)); obj.push_back(Pair("localservices", strprintf("%016x", nLocalServices))); obj.push_back(Pair("timeoffset", GetTimeOffset())); |