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// Copyright (c) 2022 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 <config/bitcoin-config.h>
#endif
#include <common/run_command.h>
#include <tinyformat.h>
#include <univalue.h>
#ifdef ENABLE_EXTERNAL_SIGNER
#if defined(__GNUC__)
// Boost 1.78 requires the following workaround.
// See: https://github.com/boostorg/process/issues/235
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wnarrowing"
#endif
#include <boost/process.hpp>
#if defined(__GNUC__)
#pragma GCC diagnostic pop
#endif
#endif // ENABLE_EXTERNAL_SIGNER
UniValue RunCommandParseJSON(const std::string& str_command, const std::string& str_std_in)
{
#ifdef ENABLE_EXTERNAL_SIGNER
namespace bp = boost::process;
UniValue result_json;
bp::opstream stdin_stream;
bp::ipstream stdout_stream;
bp::ipstream stderr_stream;
if (str_command.empty()) return UniValue::VNULL;
bp::child c(
str_command,
bp::std_out > stdout_stream,
bp::std_err > stderr_stream,
bp::std_in < stdin_stream
);
if (!str_std_in.empty()) {
stdin_stream << str_std_in << std::endl;
}
stdin_stream.pipe().close();
std::string result;
std::string error;
std::getline(stdout_stream, result);
std::getline(stderr_stream, error);
c.wait();
const int n_error = c.exit_code();
if (n_error) throw std::runtime_error(strprintf("RunCommandParseJSON error: process(%s) returned %d: %s\n", str_command, n_error, error));
if (!result_json.read(result)) throw std::runtime_error("Unable to parse JSON: " + result);
return result_json;
#else
throw std::runtime_error("Compiled without external signing support (required for external signing).");
#endif // ENABLE_EXTERNAL_SIGNER
}
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