MFC 获取域名TXT记录内容

#include <WinDns.h>

void GetTxtRecord(const std::string& domain) {

DNS_RECORD* pRecord = nullptr;

DWORD err = DnsQuery_UTF8(domain.c_str(), DNS_TYPE_TEXT, DNS_QUERY_STANDARD, nullptr, &pRecord, nullptr);

if (err == ERROR_SUCCESS) {

DNS_RECORD* current = pRecord;

while (current != nullptr) {

if (current->wType == DNS_TYPE_TEXT) {

DNS_TXT_DATAW* txtData = (DNS_TXT_DATAW*)&current->Data.Txt;

for (ULONG i = 0; i < txtData->dwStringCount; i++) {

CStringA str = (LPCSTR)txtData->pStringArray[i];

TRACE(_T("%s\n"), txtData->pStringArray[i]);

std::wcout << txtData->pStringArray[i] << std::endl;

}

}

current = current->pNext;

}

DnsRecordListFree(pRecord, DnsFreeRecordList);

}

else {

std::cerr << "Error querying DNS: " << err << std::endl;

}

}