// Copyright (c) 2009-2010 Satoshi Nakamoto // Copyright (c) 2009-2020 The Bitcoin Core developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #if defined(HAVE_CONFIG_H) #include #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef WIN32 #include #endif #include #include #include #include #include const std::function G_TRANSLATION_FUN = nullptr; UrlDecodeFn* const URL_DECODE = urlDecode; static const char DEFAULT_RPCCONNECT[] = "127.0.0.1"; static const int DEFAULT_HTTP_CLIENT_TIMEOUT=900; static constexpr int DEFAULT_WAIT_CLIENT_TIMEOUT = 0; static const bool DEFAULT_NAMED=false; static const int CONTINUE_EXECUTION=-1; static constexpr int8_t UNKNOWN_NETWORK{-1}; /** Default number of blocks to generate for RPC generatetoaddress. */ static const std::string DEFAULT_NBLOCKS = "1"; /** Default -color setting. */ static const std::string DEFAULT_COLOR_SETTING{"auto"}; static void SetupCliArgs(ArgsManager& argsman) { SetupHelpOptions(argsman); const auto defaultBaseParams = CreateBaseChainParams(CBaseChainParams::MAIN); const auto testnetBaseParams = CreateBaseChainParams(CBaseChainParams::TESTNET); const auto signetBaseParams = CreateBaseChainParams(CBaseChainParams::SIGNET); const auto regtestBaseParams = CreateBaseChainParams(CBaseChainParams::REGTEST); argsman.AddArg("-version", "Print version and exit", ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS); argsman.AddArg("-conf=", strprintf("Specify configuration file. Relative paths will be prefixed by datadir location. (default: %s)", BITCOIN_CONF_FILENAME), ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS); argsman.AddArg("-datadir=", "Specify data directory", ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS); argsman.AddArg("-generate", strprintf("Generate blocks immediately, equivalent to RPC getnewaddress followed by RPC generatetoaddress. Optional positional integer arguments are number of blocks to generate (default: %s) and maximum iterations to try (default: %s), equivalent to RPC generatetoaddress nblocks and maxtries arguments. Example: bitcoin-cli -generate 4 1000", DEFAULT_NBLOCKS, DEFAULT_MAX_TRIES), ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS); argsman.AddArg("-addrinfo", "Get the number of addresses known to the node, per network and total.", ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS); argsman.AddArg("-getinfo", "Get general information from the remote server. Note that unlike server-side RPC calls, the results of -getinfo is the result of multiple non-atomic requests. Some entries in the result may represent results from different states (e.g. wallet balance may be as of a different block from the chain state reported)", ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS); argsman.AddArg("-netinfo", "Get network peer connection information from the remote server. An optional integer argument from 0 to 4 can be passed for different peers listings (default: 0). Pass \"help\" for detailed help documentation.", ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS); SetupChainParamsBaseOptions(argsman); argsman.AddArg("-color=", strprintf("Color setting for CLI output (default: %s). Valid values: always, auto (add color codes when standard output is connected to a terminal and OS is not WIN32), never.", DEFAULT_COLOR_SETTING), ArgsManager::ALLOW_STRING, OptionsCategory::OPTIONS); argsman.AddArg("-named", strprintf("Pass named instead of positional arguments (default: %s)", DEFAULT_NAMED), ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS); argsman.AddArg("-rpcclienttimeout=", strprintf("Timeout in seconds during HTTP requests, or 0 for no timeout. (default: %d)", DEFAULT_HTTP_CLIENT_TIMEOUT), ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS); argsman.AddArg("-rpcconnect=", strprintf("Send commands to node running on (default: %s)", DEFAULT_RPCCONNECT), ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS); argsman.AddArg("-rpccookiefile=", "Location of the auth cookie. Relative paths will be prefixed by a net-specific datadir location. (default: data dir)", ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS); argsman.AddArg("-rpcpassword=", "Password for JSON-RPC connections", ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS); argsman.AddArg("-rpcport=", strprintf("Connect to JSON-RPC on (default: %u, testnet: %u, signet: %u, regtest: %u)", defaultBaseParams->RPCPort(), testnetBaseParams->RPCPort(), signetBaseParams->RPCPort(), regtestBaseParams->RPCPort()), ArgsManager::ALLOW_ANY | ArgsManager::NETWORK_ONLY, OptionsCategory::OPTIONS); argsman.AddArg("-rpcuser=", "Username for JSON-RPC connections", ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS); argsman.AddArg("-rpcwait", "Wait for RPC server to start", ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS); argsman.AddArg("-rpcwaittimeout=", strprintf("Timeout in seconds to wait for the RPC server to start, or 0 for no timeout. (default: %d)", DEFAULT_WAIT_CLIENT_TIMEOUT), ArgsManager::ALLOW_INT, OptionsCategory::OPTIONS); argsman.AddArg("-rpcwallet=", "Send RPC for non-default wallet on RPC server (needs to exactly match corresponding -wallet option passed to bitcoind). This changes the RPC endpoint used, e.g. http://127.0.0.1:8332/wallet/", ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS); argsman.AddArg("-stdin", "Read extra arguments from standard input, one per line until EOF/Ctrl-D (recommended for sensitive information such as passphrases). When combined with -stdinrpcpass, the first line from standard input is used for the RPC password.", ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS); argsman.AddArg("-stdinrpcpass", "Read RPC password from standard input as a single line. When combined with -stdin, the first line from standard input is used for the RPC password. When combined with -stdinwalletpassphrase, -stdinrpcpass consumes the first line, and -stdinwalletpassphrase consumes the second.", ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS); argsman.AddArg("-stdinwalletpassphrase", "Read wallet passphrase from standard input as a single line. When combined with -stdin, the first line from standard input is used for the wallet passphrase.", ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS); } /** libevent event log callback */ static void libevent_log_cb(int severity, const char *msg) { #ifndef EVENT_LOG_ERR // EVENT_LOG_ERR was added in 2.0.19; but before then _EVENT_LOG_ERR existed. # define EVENT_LOG_ERR _EVENT_LOG_ERR #endif // Ignore everything other than errors if (severity >= EVENT_LOG_ERR) { throw std::runtime_error(strprintf("libevent error: %s", msg)); } } // // Exception thrown on connection error. This error is used to determine // when to wait if -rpcwait is given. // class CConnectionFailed : public std::runtime_error { public: explicit inline CConnectionFailed(const std::string& msg) : std::runtime_error(msg) {} }; // // This function returns either one of EXIT_ codes when it's expected to stop the process or // CONTINUE_EXECUTION when it's expected to continue further. // static int AppInitRPC(int argc, char* argv[]) { SetupCliArgs(gArgs); std::string error; if (!gArgs.ParseParameters(argc, argv, error)) { tfm::format(std::cerr, "Error parsing command line arguments: %s\n", error); return EXIT_FAILURE; } if (argc < 2 || HelpRequested(gArgs) || gArgs.IsArgSet("-version")) { std::string strUsage = PACKAGE_NAME " RPC client version " + FormatFullVersion() + "\n"; if (!gArgs.IsArgSet("-version")) { strUsage += "\n" "Usage: bitcoin-cli [options] [params] Send command to " PACKAGE_NAME "\n" "or: bitcoin-cli [options] -named [name=value]... Send command to " PACKAGE_NAME " (with named arguments)\n" "or: bitcoin-cli [options] help List commands\n" "or: bitcoin-cli [options] help Get help for a command\n"; strUsage += "\n" + gArgs.GetHelpMessage(); } tfm::format(std::cout, "%s", strUsage); if (argc < 2) { tfm::format(std::cerr, "Error: too few parameters\n"); return EXIT_FAILURE; } return EXIT_SUCCESS; } if (!CheckDataDirOption()) { tfm::format(std::cerr, "Error: Specified data directory \"%s\" does not exist.\n", gArgs.GetArg("-datadir", "")); return EXIT_FAILURE; } if (!gArgs.ReadConfigFiles(error, true)) { tfm::format(std::cerr, "Error reading configuration file: %s\n", error); return EXIT_FAILURE; } // Check for chain settings (BaseParams() calls are only valid after this clause) try { SelectBaseParams(gArgs.GetChainName()); } catch (const std::exception& e) { tfm::format(std::cerr, "Error: %s\n", e.what()); return EXIT_FAILURE; } return CONTINUE_EXECUTION; } /** Reply structure for request_done to fill in */ struct HTTPReply { HTTPReply(): status(0), error(-1) {} int status; int error; std::string body; }; static std::string http_errorstring(int code) { switch(code) { #if LIBEVENT_VERSION_NUMBER >= 0x02010300 case EVREQ_HTTP_TIMEOUT: return "timeout reached"; case EVREQ_HTTP_EOF: return "EOF reached"; case EVREQ_HTTP_INVALID_HEADER: return "error while reading header, or invalid header"; case EVREQ_HTTP_BUFFER_ERROR: return "error encountered while reading or writing"; case EVREQ_HTTP_REQUEST_CANCEL: return "request was canceled"; case EVREQ_HTTP_DATA_TOO_LONG: return "response body is larger than allowed"; #endif default: return "unknown"; } } static void http_request_done(struct evhttp_request *req, void *ctx) { HTTPReply *reply = static_cast(ctx); if (req == nullptr) { /* If req is nullptr, it means an error occurred while connecting: the * error code will have been passed to http_error_cb. */ reply->status = 0; return; } reply->status = evhttp_request_get_response_code(req); struct evbuffer *buf = evhttp_request_get_input_buffer(req); if (buf) { size_t size = evbuffer_get_length(buf); const char *data = (const char*)evbuffer_pullup(buf, size); if (data) reply->body = std::string(data, size); evbuffer_drain(buf, size); } } #if LIBEVENT_VERSION_NUMBER >= 0x02010300 static void http_error_cb(enum evhttp_request_error err, void *ctx) { HTTPReply *reply = static_cast(ctx); reply->error = err; } #endif /** Class that handles the conversion from a command-line to a JSON-RPC request, * as well as converting back to a JSON object that can be shown as result. */ class BaseRequestHandler { public: virtual ~BaseRequestHandler() {} virtual UniValue PrepareRequest(const std::string& method, const std::vector& args) = 0; virtual UniValue ProcessReply(const UniValue &batch_in) = 0; }; /** Process addrinfo requests */ class AddrinfoRequestHandler : public BaseRequestHandler { private: static constexpr std::array m_networks{"ipv4", "ipv6", "torv2", "torv3", "i2p"}; int8_t NetworkStringToId(const std::string& str) const { for (size_t i = 0; i < m_networks.size(); ++i) { if (str == m_networks.at(i)) return i; } return UNKNOWN_NETWORK; } public: UniValue PrepareRequest(const std::string& method, const std::vector& args) override { if (!args.empty()) { throw std::runtime_error("-addrinfo takes no arguments"); } UniValue params{RPCConvertValues("getnodeaddresses", std::vector{{"0"}})}; return JSONRPCRequestObj("getnodeaddresses", params, 1); } UniValue ProcessReply(const UniValue& reply) override { if (!reply["error"].isNull()) return reply; const std::vector& nodes{reply["result"].getValues()}; if (!nodes.empty() && nodes.at(0)["network"].isNull()) { throw std::runtime_error("-addrinfo requires bitcoind server to be running v22.0 and up"); } // Count the number of peers we know by network, including torv2 versus torv3. std::array counts{{}}; for (const UniValue& node : nodes) { std::string network_name{node["network"].get_str()}; if (network_name == "onion") { network_name = node["address"].get_str().size() > 22 ? "torv3" : "torv2"; } const int8_t network_id{NetworkStringToId(network_name)}; if (network_id == UNKNOWN_NETWORK) continue; ++counts.at(network_id); } // Prepare result to return to user. UniValue result{UniValue::VOBJ}, addresses{UniValue::VOBJ}; uint64_t total{0}; // Total address count for (size_t i = 0; i < m_networks.size(); ++i) { addresses.pushKV(m_networks.at(i), counts.at(i)); total += counts.at(i); } addresses.pushKV("total", total); result.pushKV("addresses_known", addresses); return JSONRPCReplyObj(result, NullUniValue, 1); } }; /** Process getinfo requests */ class GetinfoRequestHandler: public BaseRequestHandler { public: const int ID_NETWORKINFO = 0; const int ID_BLOCKCHAININFO = 1; const int ID_WALLETINFO = 2; const int ID_BALANCES = 3; /** Create a simulated `getinfo` request. */ UniValue PrepareRequest(const std::string& method, const std::vector& args) override { if (!args.empty()) { throw std::runtime_error("-getinfo takes no arguments"); } UniValue result(UniValue::VARR); result.push_back(JSONRPCRequestObj("getnetworkinfo", NullUniValue, ID_NETWORKINFO)); result.push_back(JSONRPCRequestObj("getblockchaininfo", NullUniValue, ID_BLOCKCHAININFO)); result.push_back(JSONRPCRequestObj("getwalletinfo", NullUniValue, ID_WALLETINFO)); result.push_back(JSONRPCRequestObj("getbalances", NullUniValue, ID_BALANCES)); return result; } /** Collect values from the batch and form a simulated `getinfo` reply. */ UniValue ProcessReply(const UniValue &batch_in) override { UniValue result(UniValue::VOBJ); const std::vector batch = JSONRPCProcessBatchReply(batch_in); // Errors in getnetworkinfo() and getblockchaininfo() are fatal, pass them on; // getwalletinfo() and getbalances() are allowed to fail if there is no wallet. if (!batch[ID_NETWORKINFO]["error"].isNull()) { return batch[ID_NETWORKINFO]; } if (!batch[ID_BLOCKCHAININFO]["error"].isNull()) { return batch[ID_BLOCKCHAININFO]; } result.pushKV("version", batch[ID_NETWORKINFO]["result"]["version"]); result.pushKV("blocks", batch[ID_BLOCKCHAININFO]["result"]["blocks"]); result.pushKV("headers", batch[ID_BLOCKCHAININFO]["result"]["headers"]); result.pushKV("verificationprogress", batch[ID_BLOCKCHAININFO]["result"]["verificationprogress"]); result.pushKV("timeoffset", batch[ID_NETWORKINFO]["result"]["timeoffset"]); UniValue connections(UniValue::VOBJ); connections.pushKV("in", batch[ID_NETWORKINFO]["result"]["connections_in"]); connections.pushKV("out", batch[ID_NETWORKINFO]["result"]["connections_out"]); connections.pushKV("total", batch[ID_NETWORKINFO]["result"]["connections"]); result.pushKV("connections", connections); result.pushKV("proxy", batch[ID_NETWORKINFO]["result"]["networks"][0]["proxy"]); result.pushKV("difficulty", batch[ID_BLOCKCHAININFO]["result"]["difficulty"]); result.pushKV("chain", UniValue(batch[ID_BLOCKCHAININFO]["result"]["chain"])); if (!batch[ID_WALLETINFO]["result"].isNull()) { result.pushKV("has_wallet", true); result.pushKV("keypoolsize", batch[ID_WALLETINFO]["result"]["keypoolsize"]); result.pushKV("walletname", batch[ID_WALLETINFO]["result"]["walletname"]); if (!batch[ID_WALLETINFO]["result"]["unlocked_until"].isNull()) { result.pushKV("unlocked_until", batch[ID_WALLETINFO]["result"]["unlocked_until"]); } result.pushKV("paytxfee", batch[ID_WALLETINFO]["result"]["paytxfee"]); } if (!batch[ID_BALANCES]["result"].isNull()) { result.pushKV("balance", batch[ID_BALANCES]["result"]["mine"]["trusted"]); } result.pushKV("relayfee", batch[ID_NETWORKINFO]["result"]["relayfee"]); result.pushKV("warnings", batch[ID_NETWORKINFO]["result"]["warnings"]); return JSONRPCReplyObj(result, NullUniValue, 1); } }; /** Process netinfo requests */ class NetinfoRequestHandler : public BaseRequestHandler { private: static constexpr uint8_t MAX_DETAIL_LEVEL{4}; static constexpr std::array m_networks{"ipv4", "ipv6", "onion", "i2p"}; std::array, 3> m_counts{{{}}}; //!< Peer counts by (in/out/total, networks/total) uint8_t m_block_relay_peers_count{0}; uint8_t m_manual_peers_count{0}; int8_t NetworkStringToId(const std::string& str) const { for (size_t i = 0; i < m_networks.size(); ++i) { if (str == m_networks.at(i)) return i; } return UNKNOWN_NETWORK; } uint8_t m_details_level{0}; //!< Optional user-supplied arg to set dashboard details level bool DetailsRequested() const { return m_details_level > 0 && m_details_level < 5; } bool IsAddressSelected() const { return m_details_level == 2 || m_details_level == 4; } bool IsVersionSelected() const { return m_details_level == 3 || m_details_level == 4; } bool m_is_asmap_on{false}; size_t m_max_addr_length{0}; size_t m_max_age_length{3}; size_t m_max_id_length{2}; struct Peer { std::string addr; std::string sub_version; std::string conn_type; std::string network; std::string age; double min_ping; double ping; int64_t last_blck; int64_t last_recv; int64_t last_send; int64_t last_trxn; int id; int mapped_as; int version; bool is_bip152_hb_from; bool is_bip152_hb_to; bool is_block_relay; bool is_outbound; bool operator<(const Peer& rhs) const { return std::tie(is_outbound, min_ping) < std::tie(rhs.is_outbound, rhs.min_ping); } }; std::vector m_peers; std::string ChainToString() const { if (gArgs.GetChainName() == CBaseChainParams::TESTNET) return " testnet"; if (gArgs.GetChainName() == CBaseChainParams::SIGNET) return " signet"; if (gArgs.GetChainName() == CBaseChainParams::REGTEST) return " regtest"; return ""; } std::string PingTimeToString(double seconds) const { if (seconds < 0) return ""; const double milliseconds{round(1000 * seconds)}; return milliseconds > 999999 ? "-" : ToString(milliseconds); } std::string ConnectionTypeForNetinfo(const std::string& conn_type) const { if (conn_type == "outbound-full-relay") return "full"; if (conn_type == "block-relay-only") return "block"; if (conn_type == "manual" || conn_type == "feeler") return conn_type; if (conn_type == "addr-fetch") return "addr"; return ""; } const int64_t m_time_now{GetTimeSeconds()}; public: static constexpr int ID_PEERINFO = 0; static constexpr int ID_NETWORKINFO = 1; UniValue PrepareRequest(const std::string& method, const std::vector& args) override { if (!args.empty()) { uint8_t n{0}; if (ParseUInt8(args.at(0), &n)) { m_details_level = std::min(n, MAX_DETAIL_LEVEL); } else { throw std::runtime_error(strprintf("invalid -netinfo argument: %s\nFor more information, run: bitcoin-cli -netinfo help", args.at(0))); } } UniValue result(UniValue::VARR); result.push_back(JSONRPCRequestObj("getpeerinfo", NullUniValue, ID_PEERINFO)); result.push_back(JSONRPCRequestObj("getnetworkinfo", NullUniValue, ID_NETWORKINFO)); return result; } UniValue ProcessReply(const UniValue& batch_in) override { const std::vector batch{JSONRPCProcessBatchReply(batch_in)}; if (!batch[ID_PEERINFO]["error"].isNull()) return batch[ID_PEERINFO]; if (!batch[ID_NETWORKINFO]["error"].isNull()) return batch[ID_NETWORKINFO]; const UniValue& networkinfo{batch[ID_NETWORKINFO]["result"]}; if (networkinfo["version"].get_int() < 209900) { throw std::runtime_error("-netinfo requires bitcoind server to be running v0.21.0 and up"); } // Count peer connection totals, and if DetailsRequested(), store peer data in a vector of structs. for (const UniValue& peer : batch[ID_PEERINFO]["result"].getValues()) { const std::string network{peer["network"].get_str()}; const int8_t network_id{NetworkStringToId(network)}; if (network_id == UNKNOWN_NETWORK) continue; const bool is_outbound{!peer["inbound"].get_bool()}; const bool is_block_relay{!peer["relaytxes"].get_bool()}; const std::string conn_type{peer["connection_type"].get_str()}; ++m_counts.at(is_outbound).at(network_id); // in/out by network ++m_counts.at(is_outbound).at(m_networks.size()); // in/out overall ++m_counts.at(2).at(network_id); // total by network ++m_counts.at(2).at(m_networks.size()); // total overall if (conn_type == "block-relay-only") ++m_block_relay_peers_count; if (conn_type == "manual") ++m_manual_peers_count; if (DetailsRequested()) { // Push data for this peer to the peers vector. const int peer_id{peer["id"].get_int()}; const int mapped_as{peer["mapped_as"].isNull() ? 0 : peer["mapped_as"].get_int()}; const int version{peer["version"].get_int()}; const int64_t conn_time{peer["conntime"].get_int64()}; const int64_t last_blck{peer["last_block"].get_int64()}; const int64_t last_recv{peer["lastrecv"].get_int64()}; const int64_t last_send{peer["lastsend"].get_int64()}; const int64_t last_trxn{peer["last_transaction"].get_int64()}; const double min_ping{peer["minping"].isNull() ? -1 : peer["minping"].get_real()}; const double ping{peer["pingtime"].isNull() ? -1 : peer["pingtime"].get_real()}; const std::string addr{peer["addr"].get_str()}; const std::string age{conn_time == 0 ? "" : ToString((m_time_now - conn_time) / 60)}; const std::string sub_version{peer["subver"].get_str()}; const bool is_bip152_hb_from{peer["bip152_hb_from"].get_bool()}; const bool is_bip152_hb_to{peer["bip152_hb_to"].get_bool()}; m_peers.push_back({addr, sub_version, conn_type, network, age, min_ping, ping, last_blck, last_recv, last_send, last_trxn, peer_id, mapped_as, version, is_bip152_hb_from, is_bip152_hb_to, is_block_relay, is_outbound}); m_max_addr_length = std::max(addr.length() + 1, m_max_addr_length); m_max_age_length = std::max(age.length(), m_max_age_length); m_max_id_length = std::max(ToString(peer_id).length(), m_max_id_length); m_is_asmap_on |= (mapped_as != 0); } } // Generate report header. std::string result{strprintf("%s %s%s - %i%s\n\n", PACKAGE_NAME, FormatFullVersion(), ChainToString(), networkinfo["protocolversion"].get_int(), networkinfo["subversion"].get_str())}; // Report detailed peer connections list sorted by direction and minimum ping time. if (DetailsRequested() && !m_peers.empty()) { std::sort(m_peers.begin(), m_peers.end()); result += strprintf("<-> type net mping ping send recv txn blk hb %*s ", m_max_age_length, "age"); if (m_is_asmap_on) result += " asmap "; result += strprintf("%*s %-*s%s\n", m_max_id_length, "id", IsAddressSelected() ? m_max_addr_length : 0, IsAddressSelected() ? "address" : "", IsVersionSelected() ? "version" : ""); for (const Peer& peer : m_peers) { std::string version{ToString(peer.version) + peer.sub_version}; result += strprintf( "%3s %6s %5s%7s%7s%5s%5s%5s%5s %2s %*s%*i %*s %-*s%s\n", peer.is_outbound ? "out" : "in", ConnectionTypeForNetinfo(peer.conn_type), peer.network, PingTimeToString(peer.min_ping), PingTimeToString(peer.ping), peer.last_send == 0 ? "" : ToString(m_time_now - peer.last_send), peer.last_recv == 0 ? "" : ToString(m_time_now - peer.last_recv), peer.last_trxn == 0 ? "" : ToString((m_time_now - peer.last_trxn) / 60), peer.last_blck == 0 ? "" : ToString((m_time_now - peer.last_blck) / 60), strprintf("%s%s", peer.is_bip152_hb_to ? "." : " ", peer.is_bip152_hb_from ? "*" : " "), m_max_age_length, // variable spacing peer.age, m_is_asmap_on ? 7 : 0, // variable spacing m_is_asmap_on && peer.mapped_as != 0 ? ToString(peer.mapped_as) : "", m_max_id_length, // variable spacing peer.id, IsAddressSelected() ? m_max_addr_length : 0, // variable spacing IsAddressSelected() ? peer.addr : "", IsVersionSelected() && version != "0" ? version : ""); } result += strprintf(" ms ms sec sec min min %*s\n\n", m_max_age_length, "min"); } // Report peer connection totals by type. result += " ipv4 ipv6 onion"; const bool any_i2p_peers = m_counts.at(2).at(3); // false if total i2p peers count is 0, otherwise true if (any_i2p_peers) result += " i2p"; result += " total block"; if (m_manual_peers_count) result += " manual"; const std::array rows{"in", "out", "total"}; for (uint8_t i = 0; i < 3; ++i) { result += strprintf("\n%-5s %5i %5i %5i", rows.at(i), m_counts.at(i).at(0), m_counts.at(i).at(1), m_counts.at(i).at(2)); // ipv4/ipv6/onion peers counts if (any_i2p_peers) result += strprintf(" %5i", m_counts.at(i).at(3)); // i2p peers count result += strprintf(" %5i", m_counts.at(i).at(m_networks.size())); // total peers count if (i == 1) { // the outbound row has two extra columns for block relay and manual peer counts result += strprintf(" %5i", m_block_relay_peers_count); if (m_manual_peers_count) result += strprintf(" %5i", m_manual_peers_count); } } // Report local addresses, ports, and scores. result += "\n\nLocal addresses"; const std::vector& local_addrs{networkinfo["localaddresses"].getValues()}; if (local_addrs.empty()) { result += ": n/a\n"; } else { size_t max_addr_size{0}; for (const UniValue& addr : local_addrs) { max_addr_size = std::max(addr["address"].get_str().length() + 1, max_addr_size); } for (const UniValue& addr : local_addrs) { result += strprintf("\n%-*s port %6i score %6i", max_addr_size, addr["address"].get_str(), addr["port"].get_int(), addr["score"].get_int()); } } return JSONRPCReplyObj(UniValue{result}, NullUniValue, 1); } const std::string m_help_doc{ "-netinfo level|\"help\" \n\n" "Returns a network peer connections dashboard with information from the remote server.\n" "This human-readable interface will change regularly and is not intended to be a stable API.\n" "Under the hood, -netinfo fetches the data by calling getpeerinfo and getnetworkinfo.\n" + strprintf("An optional integer argument from 0 to %d can be passed for different peers listings; %d to 255 are parsed as %d.\n", MAX_DETAIL_LEVEL, MAX_DETAIL_LEVEL, MAX_DETAIL_LEVEL) + "Pass \"help\" to see this detailed help documentation.\n" "If more than one argument is passed, only the first one is read and parsed.\n" "Suggestion: use with the Linux watch(1) command for a live dashboard; see example below.\n\n" "Arguments:\n" + strprintf("1. level (integer 0-%d, optional) Specify the info level of the peers dashboard (default 0):\n", MAX_DETAIL_LEVEL) + " 0 - Connection counts and local addresses\n" " 1 - Like 0 but with a peers listing (without address or version columns)\n" " 2 - Like 1 but with an address column\n" " 3 - Like 1 but with a version column\n" " 4 - Like 1 but with both address and version columns\n" "2. help (string \"help\", optional) Print this help documentation instead of the dashboard.\n\n" "Result:\n\n" + strprintf("* The peers listing in levels 1-%d displays all of the peers sorted by direction and minimum ping time:\n\n", MAX_DETAIL_LEVEL) + " Column Description\n" " ------ -----------\n" " <-> Direction\n" " \"in\" - inbound connections are those initiated by the peer\n" " \"out\" - outbound connections are those initiated by us\n" " type Type of peer connection\n" " \"full\" - full relay, the default\n" " \"block\" - block relay; like full relay but does not relay transactions or addresses\n" " \"manual\" - peer we manually added using RPC addnode or the -addnode/-connect config options\n" " \"feeler\" - short-lived connection for testing addresses\n" " \"addr\" - address fetch; short-lived connection for requesting addresses\n" " net Network the peer connected through (\"ipv4\", \"ipv6\", \"onion\", \"i2p\", or \"cjdns\")\n" " mping Minimum observed ping time, in milliseconds (ms)\n" " ping Last observed ping time, in milliseconds (ms)\n" " send Time since last message sent to the peer, in seconds\n" " recv Time since last message received from the peer, in seconds\n" " txn Time since last novel transaction received from the peer and accepted into our mempool, in minutes\n" " blk Time since last novel block passing initial validity checks received from the peer, in minutes\n" " hb High-bandwidth BIP152 compact block relay\n" " \".\" (to) - we selected the peer as a high-bandwidth peer\n" " \"*\" (from) - the peer selected us as a high-bandwidth peer\n" " age Duration of connection to the peer, in minutes\n" " asmap Mapped AS (Autonomous System) number in the BGP route to the peer, used for diversifying\n" " peer selection (only displayed if the -asmap config option is set)\n" " id Peer index, in increasing order of peer connections since node startup\n" " address IP address and port of the peer\n" " version Peer version and subversion concatenated, e.g. \"70016/Satoshi:21.0.0/\"\n\n" "* The connection counts table displays the number of peers by direction, network, and the totals\n" " for each, as well as two special outbound columns for block relay peers and manual peers.\n\n" "* The local addresses table lists each local address broadcast by the node, the port, and the score.\n\n" "Examples:\n\n" "Connection counts and local addresses only\n" "> bitcoin-cli -netinfo\n\n" "Compact peers listing\n" "> bitcoin-cli -netinfo 1\n\n" "Full dashboard\n" + strprintf("> bitcoin-cli -netinfo %d\n\n", MAX_DETAIL_LEVEL) + "Full live dashboard, adjust --interval or --no-title as needed (Linux)\n" + strprintf("> watch --interval 1 --no-title bitcoin-cli -netinfo %d\n\n", MAX_DETAIL_LEVEL) + "See this help\n" "> bitcoin-cli -netinfo help\n"}; }; /** Process RPC generatetoaddress request. */ class GenerateToAddressRequestHandler : public BaseRequestHandler { public: UniValue PrepareRequest(const std::string& method, const std::vector& args) override { address_str = args.at(1); UniValue params{RPCConvertValues("generatetoaddress", args)}; return JSONRPCRequestObj("generatetoaddress", params, 1); } UniValue ProcessReply(const UniValue &reply) override { UniValue result(UniValue::VOBJ); result.pushKV("address", address_str); result.pushKV("blocks", reply.get_obj()["result"]); return JSONRPCReplyObj(result, NullUniValue, 1); } protected: std::string address_str; }; /** Process default single requests */ class DefaultRequestHandler: public BaseRequestHandler { public: UniValue PrepareRequest(const std::string& method, const std::vector& args) override { UniValue params; if(gArgs.GetBoolArg("-named", DEFAULT_NAMED)) { params = RPCConvertNamedValues(method, args); } else { params = RPCConvertValues(method, args); } return JSONRPCRequestObj(method, params, 1); } UniValue ProcessReply(const UniValue &reply) override { return reply.get_obj(); } }; static UniValue CallRPC(BaseRequestHandler* rh, const std::string& strMethod, const std::vector& args, const std::optional& rpcwallet = {}) { std::string host; // In preference order, we choose the following for the port: // 1. -rpcport // 2. port in -rpcconnect (ie following : in ipv4 or ]: in ipv6) // 3. default port for chain uint16_t port{BaseParams().RPCPort()}; SplitHostPort(gArgs.GetArg("-rpcconnect", DEFAULT_RPCCONNECT), port, host); port = static_cast(gArgs.GetArg("-rpcport", port)); // Obtain event base raii_event_base base = obtain_event_base(); // Synchronously look up hostname raii_evhttp_connection evcon = obtain_evhttp_connection_base(base.get(), host, port); // Set connection timeout { const int timeout = gArgs.GetArg("-rpcclienttimeout", DEFAULT_HTTP_CLIENT_TIMEOUT); if (timeout > 0) { evhttp_connection_set_timeout(evcon.get(), timeout); } else { // Indefinite request timeouts are not possible in libevent-http, so we // set the timeout to a very long time period instead. constexpr int YEAR_IN_SECONDS = 31556952; // Average length of year in Gregorian calendar evhttp_connection_set_timeout(evcon.get(), 5 * YEAR_IN_SECONDS); } } HTTPReply response; raii_evhttp_request req = obtain_evhttp_request(http_request_done, (void*)&response); if (req == nullptr) throw std::runtime_error("create http request failed"); #if LIBEVENT_VERSION_NUMBER >= 0x02010300 evhttp_request_set_error_cb(req.get(), http_error_cb); #endif // Get credentials std::string strRPCUserColonPass; bool failedToGetAuthCookie = false; if (gArgs.GetArg("-rpcpassword", "") == "") { // Try fall back to cookie-based authentication if no password is provided if (!GetAuthCookie(&strRPCUserColonPass)) { failedToGetAuthCookie = true; } } else { strRPCUserColonPass = gArgs.GetArg("-rpcuser", "") + ":" + gArgs.GetArg("-rpcpassword", ""); } struct evkeyvalq* output_headers = evhttp_request_get_output_headers(req.get()); assert(output_headers); evhttp_add_header(output_headers, "Host", host.c_str()); evhttp_add_header(output_headers, "Connection", "close"); evhttp_add_header(output_headers, "Content-Type", "application/json"); evhttp_add_header(output_headers, "Authorization", (std::string("Basic ") + EncodeBase64(strRPCUserColonPass)).c_str()); // Attach request data std::string strRequest = rh->PrepareRequest(strMethod, args).write() + "\n"; struct evbuffer* output_buffer = evhttp_request_get_output_buffer(req.get()); assert(output_buffer); evbuffer_add(output_buffer, strRequest.data(), strRequest.size()); // check if we should use a special wallet endpoint std::string endpoint = "/"; if (rpcwallet) { char* encodedURI = evhttp_uriencode(rpcwallet->data(), rpcwallet->size(), false); if (encodedURI) { endpoint = "/wallet/" + std::string(encodedURI); free(encodedURI); } else { throw CConnectionFailed("uri-encode failed"); } } int r = evhttp_make_request(evcon.get(), req.get(), EVHTTP_REQ_POST, endpoint.c_str()); req.release(); // ownership moved to evcon in above call if (r != 0) { throw CConnectionFailed("send http request failed"); } event_base_dispatch(base.get()); if (response.status == 0) { std::string responseErrorMessage; if (response.error != -1) { responseErrorMessage = strprintf(" (error code %d - \"%s\")", response.error, http_errorstring(response.error)); } throw CConnectionFailed(strprintf("Could not connect to the server %s:%d%s\n\nMake sure the bitcoind server is running and that you are connecting to the correct RPC port.", host, port, responseErrorMessage)); } else if (response.status == HTTP_UNAUTHORIZED) { if (failedToGetAuthCookie) { throw std::runtime_error(strprintf( "Could not locate RPC credentials. No authentication cookie could be found, and RPC password is not set. See -rpcpassword and -stdinrpcpass. Configuration file: (%s)", GetConfigFile(gArgs.GetArg("-conf", BITCOIN_CONF_FILENAME)).string())); } else { throw std::runtime_error("Authorization failed: Incorrect rpcuser or rpcpassword"); } } else if (response.status == HTTP_SERVICE_UNAVAILABLE) { throw std::runtime_error(strprintf("Server response: %s", response.body)); } else if (response.status >= 400 && response.status != HTTP_BAD_REQUEST && response.status != HTTP_NOT_FOUND && response.status != HTTP_INTERNAL_SERVER_ERROR) throw std::runtime_error(strprintf("server returned HTTP error %d", response.status)); else if (response.body.empty()) throw std::runtime_error("no response from server"); // Parse reply UniValue valReply(UniValue::VSTR); if (!valReply.read(response.body)) throw std::runtime_error("couldn't parse reply from server"); const UniValue reply = rh->ProcessReply(valReply); if (reply.empty()) throw std::runtime_error("expected reply to have result, error and id properties"); return reply; } /** * ConnectAndCallRPC wraps CallRPC with -rpcwait and an exception handler. * * @param[in] rh Pointer to RequestHandler. * @param[in] strMethod Reference to const string method to forward to CallRPC. * @param[in] rpcwallet Reference to const optional string wallet name to forward to CallRPC. * @returns the RPC response as a UniValue object. * @throws a CConnectionFailed std::runtime_error if connection failed or RPC server still in warmup. */ static UniValue ConnectAndCallRPC(BaseRequestHandler* rh, const std::string& strMethod, const std::vector& args, const std::optional& rpcwallet = {}) { UniValue response(UniValue::VOBJ); // Execute and handle connection failures with -rpcwait. const bool fWait = gArgs.GetBoolArg("-rpcwait", false); const int timeout = gArgs.GetArg("-rpcwaittimeout", DEFAULT_WAIT_CLIENT_TIMEOUT); const auto deadline{GetTime() + 1s * timeout}; do { try { response = CallRPC(rh, strMethod, args, rpcwallet); if (fWait) { const UniValue& error = find_value(response, "error"); if (!error.isNull() && error["code"].get_int() == RPC_IN_WARMUP) { throw CConnectionFailed("server in warmup"); } } break; // Connection succeeded, no need to retry. } catch (const CConnectionFailed& e) { const auto now{GetTime()}; if (fWait && (timeout <= 0 || now < deadline)) { UninterruptibleSleep(1s); } else { throw CConnectionFailed(strprintf("timeout on transient error: %s", e.what())); } } } while (fWait); return response; } /** Parse UniValue result to update the message to print to std::cout. */ static void ParseResult(const UniValue& result, std::string& strPrint) { if (result.isNull()) return; strPrint = result.isStr() ? result.get_str() : result.write(2); } /** Parse UniValue error to update the message to print to std::cerr and the code to return. */ static void ParseError(const UniValue& error, std::string& strPrint, int& nRet) { if (error.isObject()) { const UniValue& err_code = find_value(error, "code"); const UniValue& err_msg = find_value(error, "message"); if (!err_code.isNull()) { strPrint = "error code: " + err_code.getValStr() + "\n"; } if (err_msg.isStr()) { strPrint += ("error message:\n" + err_msg.get_str()); } if (err_code.isNum() && err_code.get_int() == RPC_WALLET_NOT_SPECIFIED) { strPrint += "\nTry adding \"-rpcwallet=\" option to bitcoin-cli command line."; } } else { strPrint = "error: " + error.write(); } nRet = abs(error["code"].get_int()); } /** * GetWalletBalances calls listwallets; if more than one wallet is loaded, it then * fetches mine.trusted balances for each loaded wallet and pushes them to `result`. * * @param result Reference to UniValue object the wallet names and balances are pushed to. */ static void GetWalletBalances(UniValue& result) { DefaultRequestHandler rh; const UniValue listwallets = ConnectAndCallRPC(&rh, "listwallets", /* args=*/{}); if (!find_value(listwallets, "error").isNull()) return; const UniValue& wallets = find_value(listwallets, "result"); if (wallets.size() <= 1) return; UniValue balances(UniValue::VOBJ); for (const UniValue& wallet : wallets.getValues()) { const std::string wallet_name = wallet.get_str(); const UniValue getbalances = ConnectAndCallRPC(&rh, "getbalances", /* args=*/{}, wallet_name); const UniValue& balance = find_value(getbalances, "result")["mine"]["trusted"]; balances.pushKV(wallet_name, balance); } result.pushKV("balances", balances); } /** * GetProgressBar contructs a progress bar with 5% intervals. * * @param[in] progress The proportion of the progress bar to be filled between 0 and 1. * @param[out] progress_bar String representation of the progress bar. */ static void GetProgressBar(double progress, std::string& progress_bar) { if (progress < 0 || progress > 1) return; static constexpr double INCREMENT{0.05}; static const std::string COMPLETE_BAR{"\u2592"}; static const std::string INCOMPLETE_BAR{"\u2591"}; for (int i = 0; i < progress / INCREMENT; ++i) { progress_bar += COMPLETE_BAR; } for (int i = 0; i < (1 - progress) / INCREMENT; ++i) { progress_bar += INCOMPLETE_BAR; } } /** * ParseGetInfoResult takes in -getinfo result in UniValue object and parses it * into a user friendly UniValue string to be printed on the console. * @param[out] result Reference to UniValue result containing the -getinfo output. */ static void ParseGetInfoResult(UniValue& result) { if (!find_value(result, "error").isNull()) return; std::string RESET, GREEN, BLUE, YELLOW, MAGENTA, CYAN; bool should_colorize = false; #ifndef WIN32 if (isatty(fileno(stdout))) { // By default, only print colored text if OS is not WIN32 and stdout is connected to a terminal. should_colorize = true; } #endif if (gArgs.IsArgSet("-color")) { const std::string color{gArgs.GetArg("-color", DEFAULT_COLOR_SETTING)}; if (color == "always") { should_colorize = true; } else if (color == "never") { should_colorize = false; } else if (color != "auto") { throw std::runtime_error("Invalid value for -color option. Valid values: always, auto, never."); } } if (should_colorize) { RESET = "\x1B[0m"; GREEN = "\x1B[32m"; BLUE = "\x1B[34m"; YELLOW = "\x1B[33m"; MAGENTA = "\x1B[35m"; CYAN = "\x1B[36m"; } std::string result_string = strprintf("%sChain: %s%s\n", BLUE, result["chain"].getValStr(), RESET); result_string += strprintf("Blocks: %s\n", result["blocks"].getValStr()); result_string += strprintf("Headers: %s\n", result["headers"].getValStr()); const double ibd_progress{result["verificationprogress"].get_real()}; std::string ibd_progress_bar; // Display the progress bar only if IBD progress is less than 99% if (ibd_progress < 0.99) { GetProgressBar(ibd_progress, ibd_progress_bar); // Add padding between progress bar and IBD progress ibd_progress_bar += " "; } result_string += strprintf("Verification progress: %s%.4f%%\n", ibd_progress_bar, ibd_progress * 100); result_string += strprintf("Difficulty: %s\n\n", result["difficulty"].getValStr()); result_string += strprintf( "%sNetwork: in %s, out %s, total %s%s\n", GREEN, result["connections"]["in"].getValStr(), result["connections"]["out"].getValStr(), result["connections"]["total"].getValStr(), RESET); result_string += strprintf("Version: %s\n", result["version"].getValStr()); result_string += strprintf("Time offset (s): %s\n", result["timeoffset"].getValStr()); const std::string proxy = result["proxy"].getValStr(); result_string += strprintf("Proxy: %s\n", proxy.empty() ? "N/A" : proxy); result_string += strprintf("Min tx relay fee rate (%s/kvB): %s\n\n", CURRENCY_UNIT, result["relayfee"].getValStr()); if (!result["has_wallet"].isNull()) { const std::string walletname = result["walletname"].getValStr(); result_string += strprintf("%sWallet: %s%s\n", MAGENTA, walletname.empty() ? "\"\"" : walletname, RESET); result_string += strprintf("Keypool size: %s\n", result["keypoolsize"].getValStr()); if (!result["unlocked_until"].isNull()) { result_string += strprintf("Unlocked until: %s\n", result["unlocked_until"].getValStr()); } result_string += strprintf("Transaction fee rate (-paytxfee) (%s/kvB): %s\n\n", CURRENCY_UNIT, result["paytxfee"].getValStr()); } if (!result["balance"].isNull()) { result_string += strprintf("%sBalance:%s %s\n\n", CYAN, RESET, result["balance"].getValStr()); } if (!result["balances"].isNull()) { result_string += strprintf("%sBalances%s\n", CYAN, RESET); size_t max_balance_length{10}; for (const std::string& wallet : result["balances"].getKeys()) { max_balance_length = std::max(result["balances"][wallet].getValStr().length(), max_balance_length); } for (const std::string& wallet : result["balances"].getKeys()) { result_string += strprintf("%*s %s\n", max_balance_length, result["balances"][wallet].getValStr(), wallet.empty() ? "\"\"" : wallet); } result_string += "\n"; } result_string += strprintf("%sWarnings:%s %s", YELLOW, RESET, result["warnings"].getValStr()); result.setStr(result_string); } /** * Call RPC getnewaddress. * @returns getnewaddress response as a UniValue object. */ static UniValue GetNewAddress() { std::optional wallet_name{}; if (gArgs.IsArgSet("-rpcwallet")) wallet_name = gArgs.GetArg("-rpcwallet", ""); DefaultRequestHandler rh; return ConnectAndCallRPC(&rh, "getnewaddress", /* args=*/{}, wallet_name); } /** * Check bounds and set up args for RPC generatetoaddress params: nblocks, address, maxtries. * @param[in] address Reference to const string address to insert into the args. * @param args Reference to vector of string args to modify. */ static void SetGenerateToAddressArgs(const std::string& address, std::vector& args) { if (args.size() > 2) throw std::runtime_error("too many arguments (maximum 2 for nblocks and maxtries)"); if (args.size() == 0) { args.emplace_back(DEFAULT_NBLOCKS); } else if (args.at(0) == "0") { throw std::runtime_error("the first argument (number of blocks to generate, default: " + DEFAULT_NBLOCKS + ") must be an integer value greater than zero"); } args.emplace(args.begin() + 1, address); } static int CommandLineRPC(int argc, char *argv[]) { std::string strPrint; int nRet = 0; try { // Skip switches while (argc > 1 && IsSwitchChar(argv[1][0])) { argc--; argv++; } std::string rpcPass; if (gArgs.GetBoolArg("-stdinrpcpass", false)) { NO_STDIN_ECHO(); if (!StdinReady()) { fputs("RPC password> ", stderr); fflush(stderr); } if (!std::getline(std::cin, rpcPass)) { throw std::runtime_error("-stdinrpcpass specified but failed to read from standard input"); } if (StdinTerminal()) { fputc('\n', stdout); } gArgs.ForceSetArg("-rpcpassword", rpcPass); } std::vector args = std::vector(&argv[1], &argv[argc]); if (gArgs.GetBoolArg("-stdinwalletpassphrase", false)) { NO_STDIN_ECHO(); std::string walletPass; if (args.size() < 1 || args[0].substr(0, 16) != "walletpassphrase") { throw std::runtime_error("-stdinwalletpassphrase is only applicable for walletpassphrase(change)"); } if (!StdinReady()) { fputs("Wallet passphrase> ", stderr); fflush(stderr); } if (!std::getline(std::cin, walletPass)) { throw std::runtime_error("-stdinwalletpassphrase specified but failed to read from standard input"); } if (StdinTerminal()) { fputc('\n', stdout); } args.insert(args.begin() + 1, walletPass); } if (gArgs.GetBoolArg("-stdin", false)) { // Read one arg per line from stdin and append std::string line; while (std::getline(std::cin, line)) { args.push_back(line); } if (StdinTerminal()) { fputc('\n', stdout); } } std::unique_ptr rh; std::string method; if (gArgs.IsArgSet("-getinfo")) { rh.reset(new GetinfoRequestHandler()); } else if (gArgs.GetBoolArg("-netinfo", false)) { if (!args.empty() && args.at(0) == "help") { tfm::format(std::cout, "%s\n", NetinfoRequestHandler().m_help_doc); return 0; } rh.reset(new NetinfoRequestHandler()); } else if (gArgs.GetBoolArg("-generate", false)) { const UniValue getnewaddress{GetNewAddress()}; const UniValue& error{find_value(getnewaddress, "error")}; if (error.isNull()) { SetGenerateToAddressArgs(find_value(getnewaddress, "result").get_str(), args); rh.reset(new GenerateToAddressRequestHandler()); } else { ParseError(error, strPrint, nRet); } } else if (gArgs.GetBoolArg("-addrinfo", false)) { rh.reset(new AddrinfoRequestHandler()); } else { rh.reset(new DefaultRequestHandler()); if (args.size() < 1) { throw std::runtime_error("too few parameters (need at least command)"); } method = args[0]; args.erase(args.begin()); // Remove trailing method name from arguments vector } if (nRet == 0) { // Perform RPC call std::optional wallet_name{}; if (gArgs.IsArgSet("-rpcwallet")) wallet_name = gArgs.GetArg("-rpcwallet", ""); const UniValue reply = ConnectAndCallRPC(rh.get(), method, args, wallet_name); // Parse reply UniValue result = find_value(reply, "result"); const UniValue& error = find_value(reply, "error"); if (error.isNull()) { if (gArgs.GetBoolArg("-getinfo", false)) { if (!gArgs.IsArgSet("-rpcwallet")) { GetWalletBalances(result); // fetch multiwallet balances and append to result } ParseGetInfoResult(result); } ParseResult(result, strPrint); } else { ParseError(error, strPrint, nRet); } } } catch (const std::exception& e) { strPrint = std::string("error: ") + e.what(); nRet = EXIT_FAILURE; } catch (...) { PrintExceptionContinue(nullptr, "CommandLineRPC()"); throw; } if (strPrint != "") { tfm::format(nRet == 0 ? std::cout : std::cerr, "%s\n", strPrint); } return nRet; } #ifdef WIN32 // Export main() and ensure working ASLR on Windows. // Exporting a symbol will prevent the linker from stripping // the .reloc section from the binary, which is a requirement // for ASLR. This is a temporary workaround until a fixed // version of binutils is used for releases. __declspec(dllexport) int main(int argc, char* argv[]) { util::WinCmdLineArgs winArgs; std::tie(argc, argv) = winArgs.get(); #else int main(int argc, char* argv[]) { #endif SetupEnvironment(); if (!SetupNetworking()) { tfm::format(std::cerr, "Error: Initializing networking failed\n"); return EXIT_FAILURE; } event_set_log_callback(&libevent_log_cb); try { int ret = AppInitRPC(argc, argv); if (ret != CONTINUE_EXECUTION) return ret; } catch (const std::exception& e) { PrintExceptionContinue(&e, "AppInitRPC()"); return EXIT_FAILURE; } catch (...) { PrintExceptionContinue(nullptr, "AppInitRPC()"); return EXIT_FAILURE; } int ret = EXIT_FAILURE; try { ret = CommandLineRPC(argc, argv); } catch (const std::exception& e) { PrintExceptionContinue(&e, "CommandLineRPC()"); } catch (...) { PrintExceptionContinue(nullptr, "CommandLineRPC()"); } return ret; }