Unicode C

Convert CRL PEM to XML

See more PEM Examples

Loads a CRL (Certificate Revocation List) from the PEM file format and converts to XML to allow for visual examination and parsing.

Note: This example requires Chilkat v9.5.0.77 or greater.

Unicode C

#include <C_CkPemW.h>
#include <C_CkAsnW.h>
#include <C_CkXmlW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkPemW pem;
    int numCrls;
    int i;
    HCkAsnW asn;
    HCkXmlW xml;
    const wchar_t *crlBase64;

    success = FALSE;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // This example requires Chilkat v9.5.0.77 or greater.
    pem = CkPemW_Create();

    CkPemW_putVerboseLogging(pem,TRUE);
    success = CkPemW_LoadPemFile(pem,L"qa_data/crl/sampleCrl.pem",L"password_not_used");
    if (success != TRUE) {
        wprintf(L"%s\n",CkPemW_lastErrorText(pem));
        CkPemW_Dispose(pem);
        return;
    }

    numCrls = CkPemW_getNumCrls(pem);
    i = 0;

    asn = CkAsnW_Create();
    xml = CkXmlW_Create();
    while (i < numCrls) {

        // Get the CRL as base64 (multi-line)
        crlBase64 = CkPemW_getEncodedItem(pem,L"crl",L"",L"base64_mime",i);
        if (CkPemW_getLastMethodSuccess(pem) != TRUE) {
            wprintf(L"%s\n",CkPemW_lastErrorText(pem));
            CkPemW_Dispose(pem);
            CkAsnW_Dispose(asn);
            CkXmlW_Dispose(xml);
            return;
        }

        wprintf(L"%s\n",crlBase64);

        success = CkAsnW_LoadEncoded(asn,crlBase64,L"base64");
        if (success != TRUE) {
            wprintf(L"%s\n",CkAsnW_lastErrorText(asn));
            CkPemW_Dispose(pem);
            CkAsnW_Dispose(asn);
            CkXmlW_Dispose(xml);
            return;
        }

        // Convert ASN.1 to XML and load into xml and re-emit for pretty printing..
        CkXmlW_LoadXml(xml,CkAsnW_asnToXml(asn));
        wprintf(L"%s\n",CkXmlW_getXml(xml));

        // Use this online tool to generate parsing code from CRL XML: 
        // Generate Parsing Code from XML

        wprintf(L"-------------------------------------\n");
        i = i + 1;
    }



    CkPemW_Dispose(pem);
    CkAsnW_Dispose(asn);
    CkXmlW_Dispose(xml);

    }