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Merge pull request #6462

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7b79cbd limit total length of user agent comments (Pavol Rusnak)
557f8ea implement uacomment config parameter which can add comments to user agent as per BIP-0014 (Pavol Rusnak)
This commit is contained in:
Wladimir J. van der Laan 2015-08-05 15:42:30 +02:00
commit c384800027
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GPG Key ID: 74810B012346C9A6
5 changed files with 16 additions and 4 deletions
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7
src/init.cpp
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@ -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"]) {

2
src/main.cpp
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@ -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())

3
src/net.cpp
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@ -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);
}

5
src/net.h
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@ -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;

3
src/rpcnet.cpp
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@ -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()));