MFC 获取域名TXT记录内容

最新推荐文章于 2025-11-29 20:55:25 发布

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#mfc #c++

#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;
   }
}