(Unicode C++) Iterate Keys and Certs in PEM

Demonstrates how to access each of the private keys and certs contained within a PEM.

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#include <CkGlobalW.h>
#include <CkPemW.h>
#include <CkPrivateKeyW.h>
#include <CkCertW.h>

void ChilkatSample(void)
    {
    // Starting in v9.5.0.49, all Chilkat classes can be unlocked at once at the beginning of a program
    // by calling UnlockBundle.  It requires a Bundle unlock code.
    CkGlobalW chilkatGlob;
    bool success = chilkatGlob.UnlockBundle(L"Anything for 30-day trial.");
    if (success != true) {
        wprintf(L"%s\n",chilkatGlob.lastErrorText());
        return;
    }

    // The Chilkat PEM class was introduced in v9.5.0.49.  
    // It requires the bundle to be unlocked, as shown above.
    CkPemW pem;

    // Load the PEM from a file.
    // If the PEM is encrypted, provide a password.  Otherwise pass an empty string for the password.
    const wchar_t *password = L"myPassword";
    success = pem.LoadPemFile(L"../myPemFiles/myPem.pem",password);
    if (success != true) {
        wprintf(L"%s\n",pem.lastErrorText());
        return;
    }

    // Note: If the app already has the PEM pre-loaded in a string variable, then load it 
    // by calling LoadPem instead.  
    const wchar_t *pemContent = L"... the PEM contents ...";
    success = pem.LoadPem(pemContent,password);
    // Check for success as before..

    // Iterate over the private keys.
    int numPrivateKeys = pem.get_NumPrivateKeys();
    int i = 0;

    while (i < numPrivateKeys) {

        CkPrivateKeyW *privKey = pem.GetPrivateKey(i);
        wprintf(L"Private Key %d is %d in length\n",i,privKey->get_BitLength());
        delete privKey;

        i = i + 1;
    }

    // Iterate over the certificates.
    int numCerts = pem.get_NumCerts();
    i = 0;

    while (i < numCerts) {

        CkCertW *cert = pem.GetCert(i);
        wprintf(L"Certificate %d : %s\n",i,cert->subjectDN());
        delete cert;

        i = i + 1;
    }
    }