MAC vendor lookup: Difference between revisions
Content added Content deleted
(Add Factor) |
(Added C++ solution) |
||
Line 195:
FC:FB:FB:01:FA:21 Cisco Systems, Inc
D4:F4:6F:C9:EF:8D Apple, Inc.
</pre>
=={{header|C++}}==
{{libheader|Boost}}
<lang cpp>// This code is based on the example 'Simple HTTP Client' included with
// the Boost documentation.
#include <boost/beast/core.hpp>
#include <boost/beast/http.hpp>
#include <boost/beast/version.hpp>
#include <boost/asio/connect.hpp>
#include <boost/asio/ip/tcp.hpp>
#include <iostream>
#include <string>
bool get_mac_vendor(const std::string& mac, std::string& vendor) {
namespace beast = boost::beast;
namespace http = beast::http;
namespace net = boost::asio;
using tcp = net::ip::tcp;
net::io_context ioc;
tcp::resolver resolver(ioc);
const char* host = "api.macvendors.com";
beast::tcp_stream stream(ioc);
stream.connect(resolver.resolve(host, "http"));
http::request<http::string_body> req{http::verb::get, "/" + mac, 10};
req.set(http::field::host, host);
req.set(http::field::user_agent, BOOST_BEAST_VERSION_STRING);
http::write(stream, req);
beast::flat_buffer buffer;
http::response<http::string_body> res;
http::read(stream, buffer, res);
bool success = res.result() == http::status::ok;
if (success)
vendor = res.body();
beast::error_code ec;
stream.socket().shutdown(tcp::socket::shutdown_both, ec);
if (ec && ec != beast::errc::not_connected)
throw beast::system_error{ec};
return success;
}
int main(int argc, char** argv) {
if (argc != 2 || strlen(argv[1]) == 0) {
std::cerr << "usage: " << argv[0] << " MAC-address\n";
return EXIT_FAILURE;
}
try {
std::string vendor;
if (get_mac_vendor(argv[1], vendor)) {
std::cout << vendor << '\n';
return EXIT_SUCCESS;
} else {
std::cout << "N/A\n";
}
} catch(std::exception const& e) {
std::cerr << "Error: " << e.what() << std::endl;
}
return EXIT_FAILURE;
}</lang>
{{out}}
<pre>
% ./mac_vendor_lookup 0c:4d:e9:00:00:00
Apple, Inc.
</pre>
| |||