DnsResolver sample

include/Sockets/DNSResolver.hpp

@@ -12,7 +12,7 @@ namespace Sockets
 {
     /// Internet Protocol Version
     /// @see https://www.geeksforgeeks.org/differences-between-ipv4-and-ipv6/
-    enum class InternetProtocol
+    enum class InternetProtocol : uint8_t
     {
         IPv4, IPv6
     };

main.cpp

@@ -76,60 +76,31 @@ int main(int argc, char *argv[])
 
 /// DNS Resolver sample program from ChatGPT
 #include <iostream>
-#include <netdb.h>
-#include <arpa/inet.h>
-#include <cstring>
+
+#include "Sockets/DNSResolver.hpp"
 
 int main(int argc, char *argv[])
 {
     if (argc != 2)
     {
-        std::cerr << "Usage: " << argv[0] << " <hostname>" << std::endl;
-        return 1;
+        //std::cerr << "Usage: " << argv[0] << " <hostname>" << std::endl;
+        //return 1;
     }
 
-    const char* hostname = argv[1];
-    struct addrinfo hints, *res, *p;
-    int status;
-    char ipstr[INET6_ADDRSTRLEN];
+    const char* hostname = "git.redacted.cc";//argv[1];
+    auto result = Sockets::ResolveDNS(hostname);
 
-    std::memset(&hints, 0, sizeof hints);
-    hints.ai_family = AF_UNSPEC;
-    hints.ai_socktype = SOCK_STREAM;
-
-    if ((status = getaddrinfo(hostname, NULL, &hints, &res)) != 0)
+    if (result.Success)
     {
-        std::cerr << "getaddrinfo: " << gai_strerror(status) << std::endl;
-        return 2;
-    }
-
-    std::cout << "IP addreses for " << hostname << ":" << std::endl;
-
-    for (p = res; p != NULL; p = p->ai_next)
-    {
-        void* addr;
-        std::string ipver;
-
-        if (p->ai_family == AF_INET) // IPv4
+        for (auto hostname : result.ResolvedHostnames)
         {
-            struct sockaddr_in *ipv4 = (struct sockaddr_in *)p->ai_addr;
-            addr = &(ipv4->sin_addr);
-            ipver = "IPv4";
-        } else {
-            struct sockaddr_in6 *ipv6 = (struct sockaddr_in6 *)p->ai_addr;
-            addr = &(ipv6->sin6_addr);
-            ipver = "IPv6";
+            if (hostname.ProtocolVersion == Sockets::InternetProtocol::IPv4) {
+                std::cout << "IPv4: " << hostname.Host  << std::endl;
+            } else if (hostname.ProtocolVersion == Sockets::InternetProtocol::IPv6) {
+                std::cout << "IPv6: " << hostname.Host  << std::endl;
+            }
         }
-
-        // Convert the IP to a string and print it
-        inet_ntop(p->ai_family, addr, ipstr, sizeof ipstr);
-        std::cout << " " << ipver << ": " << ipstr << std::endl;
     }
 
-    freeaddrinfo(res); // free the linked list
     return 0;
 }
-
-// Compile this code and run it with a hostname as an argument, like so:
-//     ./dns_resolver www.google.com
-// This program will resolve the IP addresses associated with the given hostname and print them to the console.