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.

C

#include <C_CkCsr.h>
#include <C_CkFileAccess.h>
#include <C_CkStringTable.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkCsr csr;
    HCkFileAccess fac;
    const char *csrPem;
    HCkStringTable 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 = CkCsr_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 = CkFileAccess_Create();
    csrPem = CkFileAccess_readEntireTextFile(fac,"qa_data/csr/myCsr.pem","utf-8");

    success = CkCsr_LoadCsrPem(csr,csrPem);
    if (success != TRUE) {
        printf("%s\n",CkCsr_lastErrorText(csr));
        CkCsr_Dispose(csr);
        CkFileAccess_Dispose(fac);
        return;
    }

    //  Get the SANs
    st = CkStringTable_Create();

    success = CkCsr_GetSans(csr,st);
    if (success != TRUE) {
        printf("%s\n",CkCsr_lastErrorText(csr));
        CkCsr_Dispose(csr);
        CkFileAccess_Dispose(fac);
        CkStringTable_Dispose(st);
        return;
    }

    i = 0;
    numSans = CkStringTable_getCount(st);
    while (i < numSans) {
        printf("%s\n",CkStringTable_stringAt(st,i));
        i = i + 1;
    }



    CkCsr_Dispose(csr);
    CkFileAccess_Dispose(fac);
    CkStringTable_Dispose(st);

    }