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Do not abort if RPC listening for IPv6 fails

Instead, fall back to IPv4 listening.
pull/1/head
Pieter Wuille 10 years ago
parent
commit
c1d79812f4
  1. 25
      src/bitcoinrpc.cpp

25
src/bitcoinrpc.cpp

@ -761,17 +761,19 @@ void ThreadRPCServer2(void* parg) @@ -761,17 +761,19 @@ void ThreadRPCServer2(void* parg)
const bool loopback = !mapArgs.count("-rpcallowip");
asio::ip::address bindAddress = loopback ? asio::ip::address_v6::loopback() : asio::ip::address_v6::any();
ip::tcp::endpoint endpoint(bindAddress, GetArg("-rpcport", 8332));
boost::system::error_code v6_only_error;
boost::shared_ptr<ip::tcp::acceptor> acceptor(new ip::tcp::acceptor(io_service));
boost::signals2::signal<void ()> StopRequests;
bool fListening = false;
std::string strerr;
try
{
boost::shared_ptr<ip::tcp::acceptor> acceptor(new ip::tcp::acceptor(io_service));
acceptor->open(endpoint.protocol());
acceptor->set_option(boost::asio::ip::tcp::acceptor::reuse_address(true));
// Try making the socket dual IPv6/IPv4 (if listening on the "any" address)
boost::system::error_code v6_only_error;
acceptor->set_option(boost::asio::ip::v6_only(loopback), v6_only_error);
acceptor->bind(endpoint);
@ -783,8 +785,16 @@ void ThreadRPCServer2(void* parg) @@ -783,8 +785,16 @@ void ThreadRPCServer2(void* parg)
static_cast<void (ip::tcp::acceptor::*)()>(&ip::tcp::acceptor::close), acceptor.get())
.track(acceptor));
fListening = true;
}
catch(boost::system::system_error &e)
{
strerr = strprintf(_("An error occurred while setting up the RPC port %i for listening on IPv6, falling back to IPv4: %s"), endpoint.port(), e.what());
}
try {
// If dual IPv6/IPv4 failed (or we're opening loopback interfaces only), open IPv4 separately
if (loopback || v6_only_error)
if (!fListening || loopback || v6_only_error)
{
bindAddress = loopback ? asio::ip::address_v4::loopback() : asio::ip::address_v4::any();
endpoint.address(bindAddress);
@ -800,12 +810,17 @@ void ThreadRPCServer2(void* parg) @@ -800,12 +810,17 @@ void ThreadRPCServer2(void* parg)
StopRequests.connect(signals2::slot<void ()>(
static_cast<void (ip::tcp::acceptor::*)()>(&ip::tcp::acceptor::close), acceptor.get())
.track(acceptor));
fListening = true;
}
}
catch(boost::system::system_error &e)
{
uiInterface.ThreadSafeMessageBox(strprintf(_("An error occurred while setting up the RPC port %i for listening: %s"), endpoint.port(), e.what()),
_("Error"), CClientUIInterface::OK | CClientUIInterface::MODAL);
strerr = strprintf(_("An error occurred while setting up the RPC port %i for listening on IPv4: %s"), endpoint.port(), e.what());
}
if (!fListening) {
uiInterface.ThreadSafeMessageBox(strerr, _("Error"), CClientUIInterface::OK | CClientUIInterface::MODAL);
StartShutdown();
return;
}

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