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//
// ssl/impl/error.ipp
// ~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2017 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//

#ifndef ASIO_SSL_IMPL_ERROR_IPP
#define ASIO_SSL_IMPL_ERROR_IPP

#if defined(_MSC_VER) && (_MSC_VER >= 1200)
#pragma once
#endif  // defined(_MSC_VER) && (_MSC_VER >= 1200)

#include <string>

#include "asio/detail/assert.hpp"
#include "asio/detail/config.hpp"
#include "mongo/util/errno_util.h"
#include "mongo/util/net/ssl/apple.hpp"
#include "mongo/util/net/ssl/error.hpp"

#include "asio/detail/push_options.hpp"

namespace asio {
namespace error {
namespace detail {

class ssl_category : public asio::error_category {
public:
    const char* name() const ASIO_ERROR_CATEGORY_NOEXCEPT {
        return "asio.ssl";
    }

#if MONGO_CONFIG_SSL_PROVIDER == SSL_PROVIDER_WINDOWS
    std::string message(int value) const {
        return mongo::errnoWithDescription(value);
    }
#elif MONGO_CONFIG_SSL_PROVIDER == SSL_PROVIDER_OPENSSL
    std::string message(int value) const {
        const char* s = ::ERR_reason_error_string(value);
        return s ? s : "asio.ssl error";
    }
#elif MONGO_CONFIG_SSL_PROVIDER == SSL_PROVIDER_APPLE
    std::string message(int value) const {
        // engine_apple produces osstatus_errorcategory messages except for stream_truncated
        if (value == asio::ssl::error::stream_truncated) {
            return "asio.ssl stream truncated";
        }
        return "asio.ssl error";
    }
#else
#error "Unknown SSL Provider"
#endif
};

}  // namespace detail

const asio::error_category& get_ssl_category() {
    static detail::ssl_category instance;
    return instance;
}

}  // namespace error
namespace ssl {
namespace error {

#if (OPENSSL_VERSION_NUMBER < 0x10100000L) && !defined(OPENSSL_IS_BORINGSSL)

const asio::error_category& get_stream_category() {
    return asio::error::get_ssl_category();
}

#else

namespace detail {

class stream_category : public asio::error_category {
public:
    const char* name() const ASIO_ERROR_CATEGORY_NOEXCEPT {
        return "asio.ssl.stream";
    }

    std::string message(int value) const {
        switch (value) {
            case stream_truncated:
                return "stream truncated";
            default:
                return "asio.ssl.stream error";
        }
    }
};

}  // namespace detail

const asio::error_category& get_stream_category() {
    static detail::stream_category instance;
    return instance;
}

#endif

}  // namespace error
}  // namespace ssl
}  // namespace asio

#include "asio/detail/pop_options.hpp"

#endif  // ASIO_SSL_IMPL_ERROR_IPP