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net: Have LookupNumeric return a CService directly

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Also fix up a few small issues:
- Lookup with "badip:port" now sets the port to 0
- Don't allow assert to have side-effects
This commit is contained in:
Cory Fields 2016-08-04 16:37:49 -04:00
parent 21ba407a73
commit 8945384bca
8 changed files with 18 additions and 21 deletions
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2
src/httpserver.cpp
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@ -619,7 +619,7 @@ CService HTTPRequest::GetPeer()
const char* address = "";
uint16_t port = 0;
evhttp_connection_get_peer(con, (char**)&address, &port);
LookupNumeric(address, peer, port);
peer = LookupNumeric(address, port);
}
return peer;
}

6
src/init.cpp
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@ -1098,8 +1098,7 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
std::string proxyArg = GetArg("-proxy", "");
SetLimited(NET_TOR);
if (proxyArg != "" && proxyArg != "0") {
CService resolved;
LookupNumeric(proxyArg.c_str(), resolved, 9050);
CService resolved(LookupNumeric(proxyArg.c_str(), 9050));
proxyType addrProxy = proxyType(resolved, proxyRandomize);
if (!addrProxy.IsValid())
return InitError(strprintf(_("Invalid -proxy address: '%s'"), proxyArg));
@ -1119,8 +1118,7 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
if (onionArg == "0") { // Handle -noonion/-onion=0
SetLimited(NET_TOR); // set onions as unreachable
} else {
CService resolved;
LookupNumeric(onionArg.c_str(), resolved, 9050);
CService resolved(LookupNumeric(onionArg.c_str(), 9050));
proxyType addrOnion = proxyType(resolved, proxyRandomize);
if (!addrOnion.IsValid())
return InitError(strprintf(_("Invalid -onion address: '%s'"), onionArg));

6
src/net.cpp
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@ -1728,8 +1728,7 @@ std::vector<AddedNodeInfo> GetAddedNodeInfo()
}
BOOST_FOREACH(const std::string& strAddNode, lAddresses) {
CService service;
LookupNumeric(strAddNode.c_str(), service, Params().GetDefaultPort());
CService service(LookupNumeric(strAddNode.c_str(), Params().GetDefaultPort()));
if (service.IsValid()) {
// strAddNode is an IP:port
auto it = mapConnected.find(service);
@ -1767,8 +1766,7 @@ void ThreadOpenAddedConnections()
CSemaphoreGrant grant(*semOutbound);
// If strAddedNode is an IP/port, decode it immediately, so
// OpenNetworkConnection can detect existing connections to that IP/port.
CService service;
LookupNumeric(info.strAddedNode.c_str(), service, Params().GetDefaultPort());
CService service(LookupNumeric(info.strAddedNode.c_str(), Params().GetDefaultPort()));
OpenNetworkConnection(CAddress(service, NODE_NONE), false, &grant, info.strAddedNode.c_str(), false);
MilliSleep(500);
}

9
src/netbase.cpp
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@ -231,9 +231,14 @@ bool Lookup(const char *pszName, CService& addr, int portDefault, bool fAllowLoo
return true;
}
bool LookupNumeric(const char *pszName, CService& addr, int portDefault)
CService LookupNumeric(const char *pszName, int portDefault)
{
return Lookup(pszName, addr, portDefault, false);
CService addr;
// "1.2:345" will fail to resolve the ip, but will still set the port.
// If the ip fails to resolve, re-init the result.
if(!Lookup(pszName, addr, portDefault, false))
addr = CService();
return addr;
}
struct timeval MillisToTimeval(int64_t nTimeout)

2
src/netbase.h
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@ -49,7 +49,7 @@ bool LookupHost(const char *pszName, std::vector<CNetAddr>& vIP, unsigned int nM
bool LookupHost(const char *pszName, CNetAddr& addr, bool fAllowLookup);
bool Lookup(const char *pszName, CService& addr, int portDefault, bool fAllowLookup);
bool Lookup(const char *pszName, std::vector<CService>& vAddr, int portDefault, bool fAllowLookup, unsigned int nMaxSolutions);
bool LookupNumeric(const char *pszName, CService& addr, int portDefault = 0);
CService LookupNumeric(const char *pszName, int portDefault = 0);
bool LookupSubNet(const char *pszName, CSubNet& subnet);
bool ConnectSocket(const CService &addr, SOCKET& hSocketRet, int nTimeout, bool *outProxyConnectionFailed = 0);
bool ConnectSocketByName(CService &addr, SOCKET& hSocketRet, const char *pszDest, int portDefault, int nTimeout, bool *outProxyConnectionFailed = 0);

3
src/qt/optionsdialog.cpp
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@ -327,8 +327,7 @@ QValidator::State ProxyAddressValidator::validate(QString &input, int &pos) cons
{
Q_UNUSED(pos);
// Validate the proxy
CService serv;
LookupNumeric(input.toStdString().c_str(), serv, 9050);
CService serv(LookupNumeric(input.toStdString().c_str(), 9050));
proxyType addrProxy = proxyType(serv, true);
if (addrProxy.IsValid())
return QValidator::Acceptable;

6
src/test/netbase_tests.cpp
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@ -93,9 +93,7 @@ BOOST_AUTO_TEST_CASE(netbase_splithost)
bool static TestParse(string src, string canon)
{
CService addr;
if (!LookupNumeric(src.c_str(), addr, 65535))
return canon == "";
CService addr(LookupNumeric(src.c_str(), 65535));
return canon == addr.ToString();
}
@ -107,7 +105,7 @@ BOOST_AUTO_TEST_CASE(netbase_lookupnumeric)
BOOST_CHECK(TestParse("::", "[::]:65535"));
BOOST_CHECK(TestParse("[::]:8333", "[::]:8333"));
BOOST_CHECK(TestParse("[127.0.0.1]", "127.0.0.1:65535"));
BOOST_CHECK(TestParse(":::", ""));
BOOST_CHECK(TestParse(":::", "[::]:0"));
}
BOOST_AUTO_TEST_CASE(onioncat_test)

5
src/torcontrol.cpp
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@ -438,7 +438,7 @@ void TorController::add_onion_cb(TorControlConnection& conn, const TorControlRep
if ((i = m.find("PrivateKey")) != m.end())
private_key = i->second;
}
LookupNumeric(std::string(service_id+".onion").c_str(), service, GetListenPort());
service = LookupNumeric(std::string(service_id+".onion").c_str(), GetListenPort());
LogPrintf("tor: Got service ID %s, advertising service %s\n", service_id, service.ToString());
if (WriteBinaryFile(GetPrivateKeyFile(), private_key)) {
LogPrint("tor", "tor: Cached service private key to %s\n", GetPrivateKeyFile());
@ -462,8 +462,7 @@ void TorController::auth_cb(TorControlConnection& conn, const TorControlReply& r
// Now that we know Tor is running setup the proxy for onion addresses
// if -onion isn't set to something else.
if (GetArg("-onion", "") == "") {
CService resolved;
assert(LookupNumeric("127.0.0.1", resolved, 9050));
CService resolved(LookupNumeric("127.0.0.1", 9050));
proxyType addrOnion = proxyType(resolved, true);
SetProxy(NET_TOR, addrOnion);
SetLimited(NET_TOR, false);