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Diffstat (limited to 'lib/asio/ip/impl/address_v6.ipp')
-rw-r--r-- | lib/asio/ip/impl/address_v6.ipp | 350 |
1 files changed, 350 insertions, 0 deletions
diff --git a/lib/asio/ip/impl/address_v6.ipp b/lib/asio/ip/impl/address_v6.ipp new file mode 100644 index 0000000..36bd68c --- /dev/null +++ b/lib/asio/ip/impl/address_v6.ipp @@ -0,0 +1,350 @@ +// +// ip/impl/address_v6.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_V6_IPP +#define ASIO_IP_IMPL_ADDRESS_V6_IPP + +#if defined(_MSC_VER) && (_MSC_VER >= 1200) +# pragma once +#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) + +#include "asio/detail/config.hpp" +#include <cstring> +#include <stdexcept> +#include <typeinfo> +#include "asio/detail/socket_ops.hpp" +#include "asio/detail/throw_error.hpp" +#include "asio/detail/throw_exception.hpp" +#include "asio/error.hpp" +#include "asio/ip/address_v6.hpp" +#include "asio/ip/bad_address_cast.hpp" + +#include "asio/detail/push_options.hpp" + +namespace asio { +namespace ip { + +address_v6::address_v6() + : addr_(), + scope_id_(0) +{ +} + +address_v6::address_v6(const address_v6::bytes_type& bytes, + unsigned long scope) + : scope_id_(scope) +{ +#if UCHAR_MAX > 0xFF + for (std::size_t i = 0; i < bytes.size(); ++i) + { + if (bytes[i] > 0xFF) + { + std::out_of_range ex("address_v6 from bytes_type"); + asio::detail::throw_exception(ex); + } + } +#endif // UCHAR_MAX > 0xFF + + using namespace std; // For memcpy. + memcpy(addr_.s6_addr, bytes.data(), 16); +} + +address_v6::address_v6(const address_v6& other) + : addr_(other.addr_), + scope_id_(other.scope_id_) +{ +} + +#if defined(ASIO_HAS_MOVE) +address_v6::address_v6(address_v6&& other) + : addr_(other.addr_), + scope_id_(other.scope_id_) +{ +} +#endif // defined(ASIO_HAS_MOVE) + +address_v6& address_v6::operator=(const address_v6& other) +{ + addr_ = other.addr_; + scope_id_ = other.scope_id_; + return *this; +} + +#if defined(ASIO_HAS_MOVE) +address_v6& address_v6::operator=(address_v6&& other) +{ + addr_ = other.addr_; + scope_id_ = other.scope_id_; + return *this; +} +#endif // defined(ASIO_HAS_MOVE) + +address_v6::bytes_type address_v6::to_bytes() const +{ + using namespace std; // For memcpy. + bytes_type bytes; +#if defined(ASIO_HAS_STD_ARRAY) + memcpy(bytes.data(), addr_.s6_addr, 16); +#else // defined(ASIO_HAS_STD_ARRAY) + memcpy(bytes.elems, addr_.s6_addr, 16); +#endif // defined(ASIO_HAS_STD_ARRAY) + return bytes; +} + +std::string address_v6::to_string() const +{ + asio::error_code ec; + char addr_str[asio::detail::max_addr_v6_str_len]; + const char* addr = + asio::detail::socket_ops::inet_ntop( + ASIO_OS_DEF(AF_INET6), &addr_, addr_str, + asio::detail::max_addr_v6_str_len, scope_id_, ec); + if (addr == 0) + asio::detail::throw_error(ec); + return addr; +} + +#if !defined(ASIO_NO_DEPRECATED) +std::string address_v6::to_string(asio::error_code& ec) const +{ + char addr_str[asio::detail::max_addr_v6_str_len]; + const char* addr = + asio::detail::socket_ops::inet_ntop( + ASIO_OS_DEF(AF_INET6), &addr_, addr_str, + asio::detail::max_addr_v6_str_len, scope_id_, ec); + if (addr == 0) + return std::string(); + return addr; +} + +address_v4 address_v6::to_v4() const +{ + if (!is_v4_mapped() && !is_v4_compatible()) + { + bad_address_cast ex; + asio::detail::throw_exception(ex); + } + + address_v4::bytes_type v4_bytes = { { addr_.s6_addr[12], + addr_.s6_addr[13], addr_.s6_addr[14], addr_.s6_addr[15] } }; + return address_v4(v4_bytes); +} +#endif // !defined(ASIO_NO_DEPRECATED) + +bool address_v6::is_loopback() const +{ + return ((addr_.s6_addr[0] == 0) && (addr_.s6_addr[1] == 0) + && (addr_.s6_addr[2] == 0) && (addr_.s6_addr[3] == 0) + && (addr_.s6_addr[4] == 0) && (addr_.s6_addr[5] == 0) + && (addr_.s6_addr[6] == 0) && (addr_.s6_addr[7] == 0) + && (addr_.s6_addr[8] == 0) && (addr_.s6_addr[9] == 0) + && (addr_.s6_addr[10] == 0) && (addr_.s6_addr[11] == 0) + && (addr_.s6_addr[12] == 0) && (addr_.s6_addr[13] == 0) + && (addr_.s6_addr[14] == 0) && (addr_.s6_addr[15] == 1)); +} + +bool address_v6::is_unspecified() const +{ + return ((addr_.s6_addr[0] == 0) && (addr_.s6_addr[1] == 0) + && (addr_.s6_addr[2] == 0) && (addr_.s6_addr[3] == 0) + && (addr_.s6_addr[4] == 0) && (addr_.s6_addr[5] == 0) + && (addr_.s6_addr[6] == 0) && (addr_.s6_addr[7] == 0) + && (addr_.s6_addr[8] == 0) && (addr_.s6_addr[9] == 0) + && (addr_.s6_addr[10] == 0) && (addr_.s6_addr[11] == 0) + && (addr_.s6_addr[12] == 0) && (addr_.s6_addr[13] == 0) + && (addr_.s6_addr[14] == 0) && (addr_.s6_addr[15] == 0)); +} + +bool address_v6::is_link_local() const +{ + return ((addr_.s6_addr[0] == 0xfe) && ((addr_.s6_addr[1] & 0xc0) == 0x80)); +} + +bool address_v6::is_site_local() const +{ + return ((addr_.s6_addr[0] == 0xfe) && ((addr_.s6_addr[1] & 0xc0) == 0xc0)); +} + +bool address_v6::is_v4_mapped() const +{ + return ((addr_.s6_addr[0] == 0) && (addr_.s6_addr[1] == 0) + && (addr_.s6_addr[2] == 0) && (addr_.s6_addr[3] == 0) + && (addr_.s6_addr[4] == 0) && (addr_.s6_addr[5] == 0) + && (addr_.s6_addr[6] == 0) && (addr_.s6_addr[7] == 0) + && (addr_.s6_addr[8] == 0) && (addr_.s6_addr[9] == 0) + && (addr_.s6_addr[10] == 0xff) && (addr_.s6_addr[11] == 0xff)); +} + +#if !defined(ASIO_NO_DEPRECATED) +bool address_v6::is_v4_compatible() const +{ + return ((addr_.s6_addr[0] == 0) && (addr_.s6_addr[1] == 0) + && (addr_.s6_addr[2] == 0) && (addr_.s6_addr[3] == 0) + && (addr_.s6_addr[4] == 0) && (addr_.s6_addr[5] == 0) + && (addr_.s6_addr[6] == 0) && (addr_.s6_addr[7] == 0) + && (addr_.s6_addr[8] == 0) && (addr_.s6_addr[9] == 0) + && (addr_.s6_addr[10] == 0) && (addr_.s6_addr[11] == 0) + && !((addr_.s6_addr[12] == 0) + && (addr_.s6_addr[13] == 0) + && (addr_.s6_addr[14] == 0) + && ((addr_.s6_addr[15] == 0) || (addr_.s6_addr[15] == 1)))); +} +#endif // !defined(ASIO_NO_DEPRECATED) + +bool address_v6::is_multicast() const +{ + return (addr_.s6_addr[0] == 0xff); +} + +bool address_v6::is_multicast_global() const +{ + return ((addr_.s6_addr[0] == 0xff) && ((addr_.s6_addr[1] & 0x0f) == 0x0e)); +} + +bool address_v6::is_multicast_link_local() const +{ + return ((addr_.s6_addr[0] == 0xff) && ((addr_.s6_addr[1] & 0x0f) == 0x02)); +} + +bool address_v6::is_multicast_node_local() const +{ + return ((addr_.s6_addr[0] == 0xff) && ((addr_.s6_addr[1] & 0x0f) == 0x01)); +} + +bool address_v6::is_multicast_org_local() const +{ + return ((addr_.s6_addr[0] == 0xff) && ((addr_.s6_addr[1] & 0x0f) == 0x08)); +} + +bool address_v6::is_multicast_site_local() const +{ + return ((addr_.s6_addr[0] == 0xff) && ((addr_.s6_addr[1] & 0x0f) == 0x05)); +} + +bool operator==(const address_v6& a1, const address_v6& a2) +{ + using namespace std; // For memcmp. + return memcmp(&a1.addr_, &a2.addr_, + sizeof(asio::detail::in6_addr_type)) == 0 + && a1.scope_id_ == a2.scope_id_; +} + +bool operator<(const address_v6& a1, const address_v6& a2) +{ + using namespace std; // For memcmp. + int memcmp_result = memcmp(&a1.addr_, &a2.addr_, + sizeof(asio::detail::in6_addr_type)); + if (memcmp_result < 0) + return true; + if (memcmp_result > 0) + return false; + return a1.scope_id_ < a2.scope_id_; +} + +address_v6 address_v6::loopback() +{ + address_v6 tmp; + tmp.addr_.s6_addr[15] = 1; + return tmp; +} + +#if !defined(ASIO_NO_DEPRECATED) +address_v6 address_v6::v4_mapped(const address_v4& addr) +{ + address_v4::bytes_type v4_bytes = addr.to_bytes(); + bytes_type v6_bytes = { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xFF, 0xFF, + v4_bytes[0], v4_bytes[1], v4_bytes[2], v4_bytes[3] } }; + return address_v6(v6_bytes); +} + +address_v6 address_v6::v4_compatible(const address_v4& addr) +{ + address_v4::bytes_type v4_bytes = addr.to_bytes(); + bytes_type v6_bytes = { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + v4_bytes[0], v4_bytes[1], v4_bytes[2], v4_bytes[3] } }; + return address_v6(v6_bytes); +} +#endif // !defined(ASIO_NO_DEPRECATED) + +address_v6 make_address_v6(const char* str) +{ + asio::error_code ec; + address_v6 addr = make_address_v6(str, ec); + asio::detail::throw_error(ec); + return addr; +} + +address_v6 make_address_v6( + const char* str, asio::error_code& ec) +{ + address_v6::bytes_type bytes; + unsigned long scope_id = 0; + if (asio::detail::socket_ops::inet_pton( + ASIO_OS_DEF(AF_INET6), str, &bytes[0], &scope_id, ec) <= 0) + return address_v6(); + return address_v6(bytes, scope_id); +} + +address_v6 make_address_v6(const std::string& str) +{ + return make_address_v6(str.c_str()); +} + +address_v6 make_address_v6( + const std::string& str, asio::error_code& ec) +{ + return make_address_v6(str.c_str(), ec); +} + +#if defined(ASIO_HAS_STRING_VIEW) + +address_v6 make_address_v6(string_view str) +{ + return make_address_v6(static_cast<std::string>(str)); +} + +address_v6 make_address_v6(string_view str, + asio::error_code& ec) +{ + return make_address_v6(static_cast<std::string>(str), ec); +} + +#endif // defined(ASIO_HAS_STRING_VIEW) + +address_v4 make_address_v4( + v4_mapped_t, const address_v6& v6_addr) +{ + if (!v6_addr.is_v4_mapped()) + { + bad_address_cast ex; + asio::detail::throw_exception(ex); + } + + address_v6::bytes_type v6_bytes = v6_addr.to_bytes(); + address_v4::bytes_type v4_bytes = { { v6_bytes[12], + v6_bytes[13], v6_bytes[14], v6_bytes[15] } }; + return address_v4(v4_bytes); +} + +address_v6 make_address_v6( + v4_mapped_t, const address_v4& v4_addr) +{ + address_v4::bytes_type v4_bytes = v4_addr.to_bytes(); + address_v6::bytes_type v6_bytes = { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0xFF, 0xFF, v4_bytes[0], v4_bytes[1], v4_bytes[2], v4_bytes[3] } }; + return address_v6(v6_bytes); +} + +} // namespace ip +} // namespace asio + +#include "asio/detail/pop_options.hpp" + +#endif // ASIO_IP_IMPL_ADDRESS_V6_IPP |