Узнать ip адрес по dns записи сайта

int get_addr(char *host_name)
{
    int res = -1;
 
    HOSTENT *phe = gethostbyname(host_name);
    if (phe)
        for (int i = 0; i < 4; i++)
            ((BYTE *)&res)[i] = phe->h_addr_list[0][i];
 
    return res;
}

#include <winsock2.h>
#include <ws2tcpip.h>
#include <stdio.h>
 
#pragma comment(lib, "ws2_32.lib")
int main(int argc, char **argv)
{
 
    //-----------------------------------------
    // Declare and initialize variables
    WSADATA wsaData;
    int iResult;
 
    DWORD dwError;
 
    struct hostent *remoteHost;
    char *host_name;
    struct in_addr addr;
 
    // Initialize Winsock
    iResult = WSAStartup(MAKEWORD(2, 2), &wsaData);
    if (iResult != 0)
    {
        printf("WSAStartup failed: %d\n", iResult);
        return 1;
    }
 
    host_name = "www.yahoo.com";
 
 
    printf("Calling gethostbyname with %s\n", host_name);
    remoteHost = gethostbyname(host_name);
 
 
    if (remoteHost == NULL)
    {
        dwError = WSAGetLastError();
        if (dwError != 0) {
            if (dwError == WSAHOST_NOT_FOUND) {
                printf("Host not found\n");
                return 1;
            }
            else if (dwError == WSANO_DATA) {
                printf("No data record found\n");
                return 1;
            }
            else {
                printf("Function failed with error: %ld\n", dwError);
                return 1;
            }
        }
    }
    else
    {
        printf("Function returned:\n");
        printf("\tOfficial name: %s\n", remoteHost->h_name);
        printf("\tAlternate names: %s\n", remoteHost->h_aliases);
        printf("\tAddress type: ");
        switch (remoteHost->h_addrtype) {
        case AF_INET:
            printf("AF_INET\n");
            break;
        case AF_INET6:
            printf("AF_INET\n");
            break;
        case AF_NETBIOS:
            printf("AF_NETBIOS\n");
            break;
        default:
            printf(" %d\n", remoteHost->h_addrtype);
            break;
        }
        printf("\tAddress length: %d\n", remoteHost->h_length);
        addr.s_addr = *(u_long *)remoteHost->h_addr_list[0];
        printf("\tFirst IP Address: %s\n", inet_ntoa(addr));
    }
 
    return 0;
}