DnsQuery_A not working on Windows 10

README.md

Build with

cl /EHsc /MD dns_query.cpp /link dnsapi.lib

or

clang++.exe -std=c++17 -Wall -Wextra -g main.cpp -o main.exe -ldnsapi

Output on Windows 10

DnsQuery_A failed with error: 9501
DNS query failed.
result 0000000000000000

dns_query.cpp

#include <windows.h>
#include <windns.h>
#include <iostream>
#include <string>

#define LOG(fmt, ...) std::printf(fmt "\n", __VA_ARGS__)

// Function to query the HTTPS (Type 65) DNS record
bool query_dns_https_record(const std::string& host) {
    PDNS_RECORD result = nullptr;

    DNS_STATUS status = DnsQuery_A(
        host.c_str(),
        65, // Type 65 corresponds to HTTPS record
        DNS_QUERY_STANDARD,
        nullptr,
        &result,
        nullptr
    );

    if (status != ERROR_SUCCESS) {
        LOG("DnsQuery_A failed with error: %ld", status);
        return false;
    }

    // This  is NULL on Windows 10 
    LOG("result %p", result);

    // Free the DNS query result 🤷‍♂️
    if (result) {
        DnsRecordListFree(result, DnsFreeRecordListDeep);
    }

    return true;
}

int main() {
    std::string host = "example.com";
    if (!query_dns_https_record(host)) {
        std::cerr << "DNS query failed." << std::endl;
    }

    std::string host2 = "cloudflare-dns.com";
    if (!query_dns_https_record(host2)) {
        std::cerr << "DNS query failed." << std::endl;
    }
    return 0;
}