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Diffstat (limited to 'lib/asio/ip/impl/address_v4.ipp')
-rw-r--r-- | lib/asio/ip/impl/address_v4.ipp | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/lib/asio/ip/impl/address_v4.ipp b/lib/asio/ip/impl/address_v4.ipp new file mode 100644 index 0000000..9559add --- /dev/null +++ b/lib/asio/ip/impl/address_v4.ipp @@ -0,0 +1,210 @@ +// +// ip/impl/address_v4.ipp +// ~~~~~~~~~~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2018 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_IP_IMPL_ADDRESS_V4_IPP +#define ASIO_IP_IMPL_ADDRESS_V4_IPP + +#if defined(_MSC_VER) && (_MSC_VER >= 1200) +# pragma once +#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) + +#include "asio/detail/config.hpp" +#include <climits> +#include <limits> +#include <stdexcept> +#include "asio/error.hpp" +#include "asio/detail/socket_ops.hpp" +#include "asio/detail/throw_error.hpp" +#include "asio/detail/throw_exception.hpp" +#include "asio/ip/address_v4.hpp" + +#include "asio/detail/push_options.hpp" + +namespace asio { +namespace ip { + +address_v4::address_v4(const address_v4::bytes_type& bytes) +{ +#if UCHAR_MAX > 0xFF + if (bytes[0] > 0xFF || bytes[1] > 0xFF + || bytes[2] > 0xFF || bytes[3] > 0xFF) + { + std::out_of_range ex("address_v4 from bytes_type"); + asio::detail::throw_exception(ex); + } +#endif // UCHAR_MAX > 0xFF + + using namespace std; // For memcpy. + memcpy(&addr_.s_addr, bytes.data(), 4); +} + +address_v4::address_v4(address_v4::uint_type addr) +{ + if ((std::numeric_limits<uint_type>::max)() > 0xFFFFFFFF) + { + std::out_of_range ex("address_v4 from unsigned integer"); + asio::detail::throw_exception(ex); + } + + addr_.s_addr = asio::detail::socket_ops::host_to_network_long( + static_cast<asio::detail::u_long_type>(addr)); +} + +address_v4::bytes_type address_v4::to_bytes() const +{ + using namespace std; // For memcpy. + bytes_type bytes; +#if defined(ASIO_HAS_STD_ARRAY) + memcpy(bytes.data(), &addr_.s_addr, 4); +#else // defined(ASIO_HAS_STD_ARRAY) + memcpy(bytes.elems, &addr_.s_addr, 4); +#endif // defined(ASIO_HAS_STD_ARRAY) + return bytes; +} + +address_v4::uint_type address_v4::to_uint() const +{ + return asio::detail::socket_ops::network_to_host_long(addr_.s_addr); +} + +#if !defined(ASIO_NO_DEPRECATED) +unsigned long address_v4::to_ulong() const +{ + return asio::detail::socket_ops::network_to_host_long(addr_.s_addr); +} +#endif // !defined(ASIO_NO_DEPRECATED) + +std::string address_v4::to_string() const +{ + asio::error_code ec; + char addr_str[asio::detail::max_addr_v4_str_len]; + const char* addr = + asio::detail::socket_ops::inet_ntop( + ASIO_OS_DEF(AF_INET), &addr_, addr_str, + asio::detail::max_addr_v4_str_len, 0, ec); + if (addr == 0) + asio::detail::throw_error(ec); + return addr; +} + +#if !defined(ASIO_NO_DEPRECATED) +std::string address_v4::to_string(asio::error_code& ec) const +{ + char addr_str[asio::detail::max_addr_v4_str_len]; + const char* addr = + asio::detail::socket_ops::inet_ntop( + ASIO_OS_DEF(AF_INET), &addr_, addr_str, + asio::detail::max_addr_v4_str_len, 0, ec); + if (addr == 0) + return std::string(); + return addr; +} +#endif // !defined(ASIO_NO_DEPRECATED) + +bool address_v4::is_loopback() const +{ + return (to_uint() & 0xFF000000) == 0x7F000000; +} + +bool address_v4::is_unspecified() const +{ + return to_uint() == 0; +} + +#if !defined(ASIO_NO_DEPRECATED) +bool address_v4::is_class_a() const +{ + return (to_uint() & 0x80000000) == 0; +} + +bool address_v4::is_class_b() const +{ + return (to_uint() & 0xC0000000) == 0x80000000; +} + +bool address_v4::is_class_c() const +{ + return (to_uint() & 0xE0000000) == 0xC0000000; +} +#endif // !defined(ASIO_NO_DEPRECATED) + +bool address_v4::is_multicast() const +{ + return (to_uint() & 0xF0000000) == 0xE0000000; +} + +#if !defined(ASIO_NO_DEPRECATED) +address_v4 address_v4::broadcast(const address_v4& addr, const address_v4& mask) +{ + return address_v4(addr.to_uint() | (mask.to_uint() ^ 0xFFFFFFFF)); +} + +address_v4 address_v4::netmask(const address_v4& addr) +{ + if (addr.is_class_a()) + return address_v4(0xFF000000); + if (addr.is_class_b()) + return address_v4(0xFFFF0000); + if (addr.is_class_c()) + return address_v4(0xFFFFFF00); + return address_v4(0xFFFFFFFF); +} +#endif // !defined(ASIO_NO_DEPRECATED) + +address_v4 make_address_v4(const char* str) +{ + asio::error_code ec; + address_v4 addr = make_address_v4(str, ec); + asio::detail::throw_error(ec); + return addr; +} + +address_v4 make_address_v4( + const char* str, asio::error_code& ec) +{ + address_v4::bytes_type bytes; + if (asio::detail::socket_ops::inet_pton( + ASIO_OS_DEF(AF_INET), str, &bytes, 0, ec) <= 0) + return address_v4(); + return address_v4(bytes); +} + +address_v4 make_address_v4(const std::string& str) +{ + return make_address_v4(str.c_str()); +} + +address_v4 make_address_v4( + const std::string& str, asio::error_code& ec) +{ + return make_address_v4(str.c_str(), ec); +} + +#if defined(ASIO_HAS_STRING_VIEW) + +address_v4 make_address_v4(string_view str) +{ + return make_address_v4(static_cast<std::string>(str)); +} + +address_v4 make_address_v4(string_view str, + asio::error_code& ec) +{ + return make_address_v4(static_cast<std::string>(str), ec); +} + +#endif // defined(ASIO_HAS_STRING_VIEW) + +} // namespace ip +} // namespace asio + +#include "asio/detail/pop_options.hpp" + +#endif // ASIO_IP_IMPL_ADDRESS_V4_IPP |