ip_address.cpp

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#include <storage_common/ip_address.hpp>
 
#include <cstring>
#include <stdexcept>
#include <string>
 
using namespace std::string_literals;
 
namespace storage {
 
ip_address::ip_address(std::string address, uint16_t port) : m_addr{std::move(address)}, m_port{port}
{
}
 
std::string const &ip_address::get_address() const noexcept
{
    return m_addr;
}
 
uint16_t ip_address::get_port() const noexcept
{
    return m_port;
}
 
ip_address parse_ip_v4_address(char const *value)
{
    auto const *const end = value + ::strnlen(value, 22);
    std::string addr;
    uint32_t port = 0;
 
    uint8_t dots = 0;
    for (auto *iter = value; iter != end; ++iter) {
        if (std::isspace(*iter))
            throw std::runtime_error{"Spaces are not permitted in IP address strings" +
                         std::to_string(UINT16_MAX)};
        if (*iter == '.') {
            ++dots;
        } else if (*iter == ':') {
            if (dots != 3) {
                throw std::runtime_error{"Invalid ip address: \""s + value +
                             "\" expected 4 octets before the port number %u" +
                             std::to_string(UINT16_MAX)};
            }
 
            addr = std::string{value, iter};
            port = ::strtoul(iter + 1, nullptr, 10);
            if (port > UINT16_MAX) {
                throw std::runtime_error{"Invalid ip address: \""s + value +
                             "\", port number exceeds %u" + std::to_string(UINT16_MAX)};
            }
 
            return ip_address{std::move(addr), static_cast<uint16_t>(port)};
        }
    }
 
    throw std::runtime_error{"Invalid ip address: \""s + value + "\""};
}
 
} /* namespace storage */