Unicode C

Load a CSR and Get the SANs (Subject Alternative Names)

See more CSR Examples

Demonstrates how to load a Certificate Signing Request (CSR) and get the Subject Alternative Names (if any).

Note: This example requires Chilkat v9.5.0.91 or greater.

Unicode C

#include <C_CkCsrW.h>
#include <C_CkFileAccessW.h>
#include <C_CkStringTableW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkCsrW csr;
    HCkFileAccessW fac;
    const wchar_t *csrPem;
    HCkStringTableW st;
    int i;
    int numSans;

    success = FALSE;

    // Note: Requires Chilkat v9.5.0.91 or greater.

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

    csr = CkCsrW_Create();

    // Load a CSR PEM file.  The file should contain content that looks like this:
    // 
    // -----BEGIN CERTIFICATE REQUEST-----
    // MIIDnzCCAocCAQAwgZ4xFDASBgNVBAMMC2V4YW1wbGUuY29tMRQwEgYDVQQHDAtM
    // b3MgQW5nZWxlczETMBEGA1UECAwKQ2FsaWZvcm5pYTEUMBIGA1UECgwLRXhhbXBs
    // ZSBJbmMxFDASBgNVBAsMC1NTTCBTdXBwb3J0MSIwIAYJKoZIhvcNAQkBFhNleGFt
    // cGxlQGV4YW1wbGUuY29tMQswCQYDVQQGEwJVUzCCASIwDQYJKoZIhvcNAQEBBQAD
    // ggEPADCCAQoCggEBALhIT/q7y1xwpYaR0Coplktwn7RGaJpEBCgbJWxOVPTGL540
    // erlhc6MrSEr6fo/HNtAbn6MNWm5F0MwjEU7H1Jxc7DYav+ps3hyhGaK9jalE99Sm
    // yFOzKMLDPyWTPpxfT4QBO4rpWxMT2lgixDkZlaNqmC6pUGXArfH+H1F3C0gtH4ZU
    // XN/Ipyk6r6ozWnJvIefdMe1JmeMD3RSoVcXd9bNWSpiD4uJnV+2pewkkNzhcGzBH
    // MGi4ZjIbpPiYLlri/79fPb6u7wYkYLzCWRKzq6EaJkqY6OQgE33SC1GQKjC/fFRx
    // wogub1s9cRjfL6vdqWbTJ5xhOkPeBO3UzHBHIksCAwEAAaCBujCBtwYJKoZIhvcN
    // AQkOMYGpMIGmMAkGA1UdEwQCMAAwCwYDVR0PBAQDAgWgMB0GA1UdJQQWMBQGCCsG
    // AQUFBwMBBggrBgEFBQcDAjBtBgNVHREEZjBkggtleGFtcGxlLmNvbYIPd3d3LmV4
    // YW1wbGUuY29tgg9mdHAuZXhhbXBsZS5jb22CD3N2bi5leGFtcGxlLmNvbYIQc210
    // cC5leGFtcGxlLmNvbYIQaW1hcC5leGFtcGxlLmNvbTANBgkqhkiG9w0BAQsFAAOC
    // AQEAsIEDMlZViEVtuQWpfa6vUl5RfqQrop+hh9l4UmEOnERLEzyVO+9Kn7jNxyOR
    // Gg7O9H4BYTfet6YwfpawbnQ1HBexduRZaUnET8RiYgKch0vWr/HbP7jvc23XUz2P
    // NOAiet/tyTU6U5xJn0H4q1VFIbHjntpBSL+n+aiv8glIUepG8BwTu+vBe2/kVzKG
    // ro2tudhbpEJYOwurlHCoubhCah9ryIkDeYEnycsrB6VnaxeGK0/5S2JBQo22/F9s
    // T+q0Gee936ISvypLwNoIX+YFAjw2KnqucUM3RKHAAheJin5WNIQXdHHKGsImapun
    // VqmPwLN6Kgm+kFVS0H5eyULSnA==
    // -----END CERTIFICATE REQUEST-----

    fac = CkFileAccessW_Create();
    csrPem = CkFileAccessW_readEntireTextFile(fac,L"qa_data/csr/myCsr.pem",L"utf-8");

    success = CkCsrW_LoadCsrPem(csr,csrPem);
    if (success != TRUE) {
        wprintf(L"%s\n",CkCsrW_lastErrorText(csr));
        CkCsrW_Dispose(csr);
        CkFileAccessW_Dispose(fac);
        return;
    }

    // Get the SANs
    st = CkStringTableW_Create();

    success = CkCsrW_GetSans(csr,st);
    if (success != TRUE) {
        wprintf(L"%s\n",CkCsrW_lastErrorText(csr));
        CkCsrW_Dispose(csr);
        CkFileAccessW_Dispose(fac);
        CkStringTableW_Dispose(st);
        return;
    }

    i = 0;
    numSans = CkStringTableW_getCount(st);
    while (i < numSans) {
        wprintf(L"%s\n",CkStringTableW_stringAt(st,i));
        i = i + 1;
    }



    CkCsrW_Dispose(csr);
    CkFileAccessW_Dispose(fac);
    CkStringTableW_Dispose(st);

    }