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InternetOpenUrl() Invalid cert

Posted on 16th Feb 2014 07:03 pm by admin

Hi all,

Does anyone know how to prevent calls to InternetOpenUrl() from failing with error 12045 (ERROR_INTERNET_INVALID_CA)? I have the following code below:

Code: HINTERNET IntOpen = ::InternetOpen(L"Sample", LOCAL_INTERNET_ACCESS, NULL, 0, 0); HINTERNET handle = ::InternetOpenUrl(IntOpen, L"https://192.168.1.10/file.txt", NULL, NULL, INTERNET_FLAG_IGNORE_CERT_CN_INVALID, NULL); if (handle == NULL) { cout << "Error opening URL, " << GetLastError(); return 1; } char buf[1024]; DWORD dwRead = 0; while (InternetReadFile(handle, buf, sizeof(buf), &dwRead) == TRUE) { if (dwRead == 0) break; cout << buf; } This works OK on valid sites, but since my server has a self signed certificate, it fails with error code 12045. I know the INTERNET_FLAG_IGNORE_CERT_CN_INVALID is technically looking for hostname mismatches, and not invalid CA's.

Any help would be appreicated.

Thanks,

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