(Unicode C) Transition from Crypt2.GetSignerCertChain to Crypt2.LastSignerCert

Provides instructions for replacing deprecated GetSignerCertChain method calls with LastSignerCert.

Note: This example requires Chilkat v11.0.0 or greater.

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#include <C_CkCrypt2W.h>
#include <C_CkCertChainW.h>
#include <C_CkCertW.h>

void ChilkatSample(void)
    {
    HCkCrypt2W crypt2;
    int index;
    HCkCertChainW certchainObj;
    HCkCertW signerCert;
    BOOL success;
    HCkCertChainW certChain;

    crypt2 = CkCrypt2W_Create();

    // ...
    // ...
    index = 0;

    // ------------------------------------------------------------------------
    // The GetSignerCertChain method is deprecated:

    certchainObj = CkCrypt2W_GetSignerCertChain(crypt2,index);
    if (CkCrypt2W_getLastMethodSuccess(crypt2) == FALSE) {
        wprintf(L"%s\n",CkCrypt2W_lastErrorText(crypt2));
        CkCrypt2W_Dispose(crypt2);
        return;
    }

    // ...
    // ...

    CkCertChainW_Dispose(certchainObj);

    // ------------------------------------------------------------------------
    // Do the equivalent using LastSignerCert, and then get the certificate chain from the cert.
    // Your application creates a new, empty Cert object which is passed 
    // in the last argument and filled upon success.

    signerCert = CkCertW_Create();
    success = CkCrypt2W_LastSignerCert(crypt2,index,signerCert);
    if (success == FALSE) {
        wprintf(L"%s\n",CkCrypt2W_lastErrorText(crypt2));
        CkCrypt2W_Dispose(crypt2);
        CkCertW_Dispose(signerCert);
        return;
    }

    certChain = CkCertChainW_Create();
    success = CkCertW_BuildCertChain(signerCert,certChain);
    if (success == FALSE) {
        wprintf(L"%s\n",CkCertW_lastErrorText(signerCert));
        CkCrypt2W_Dispose(crypt2);
        CkCertW_Dispose(signerCert);
        CkCertChainW_Dispose(certChain);
        return;
    }



    CkCrypt2W_Dispose(crypt2);
    CkCertW_Dispose(signerCert);
    CkCertChainW_Dispose(certChain);

    }