jeanlemotan
85 lines
1.7 KiB
C++
85 lines
1.7 KiB
C++
///////////////////////////////////////////////////////////////////////////////
|
|
// Kt C++ Library
|
|
// Copyright (c) 2015 Lewis Baker
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
#include <cppcoro/net/ipv6_endpoint.hpp>
|
|
|
|
#include <algorithm>
|
|
|
|
namespace
|
|
{
|
|
namespace local
|
|
{
|
|
bool is_digit(char c)
|
|
{
|
|
return c >= '0' && c <= '9';
|
|
}
|
|
|
|
std::uint8_t digit_value(char c)
|
|
{
|
|
return static_cast<std::uint8_t>(c - '0');
|
|
}
|
|
|
|
std::optional<std::uint16_t> parse_port(std::string_view string)
|
|
{
|
|
if (string.empty()) return std::nullopt;
|
|
|
|
std::uint32_t value = 0;
|
|
for (auto c : string)
|
|
{
|
|
if (!is_digit(c)) return std::nullopt;
|
|
value = value * 10 + digit_value(c);
|
|
if (value > 0xFFFFu) return std::nullopt;
|
|
}
|
|
|
|
return static_cast<std::uint16_t>(value);
|
|
}
|
|
}
|
|
}
|
|
|
|
std::string cppcoro::net::ipv6_endpoint::to_string() const
|
|
{
|
|
std::string result;
|
|
result.push_back('[');
|
|
result += m_address.to_string();
|
|
result += "]:";
|
|
result += std::to_string(m_port);
|
|
return result;
|
|
}
|
|
|
|
std::optional<cppcoro::net::ipv6_endpoint>
|
|
cppcoro::net::ipv6_endpoint::from_string(std::string_view string) noexcept
|
|
{
|
|
// Shortest valid endpoint is "[::]:0"
|
|
if (string.size() < 6)
|
|
{
|
|
return std::nullopt;
|
|
}
|
|
|
|
if (string[0] != '[')
|
|
{
|
|
return std::nullopt;
|
|
}
|
|
|
|
auto closeBracketPos = string.find("]:", 1);
|
|
if (closeBracketPos == std::string_view::npos)
|
|
{
|
|
return std::nullopt;
|
|
}
|
|
|
|
auto address = ipv6_address::from_string(string.substr(1, closeBracketPos - 1));
|
|
if (!address)
|
|
{
|
|
return std::nullopt;
|
|
}
|
|
|
|
auto port = local::parse_port(string.substr(closeBracketPos + 2));
|
|
if (!port)
|
|
{
|
|
return std::nullopt;
|
|
}
|
|
|
|
return ipv6_endpoint{ *address, *port };
|
|
}
|