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.. _mozilla_projects_nss_cert_findcertbyissuerandsn:
CERT_FindCertByIssuerAndSN
==========================
.. container::
Find a certificate in the database with the given issuer and serial number.
`Syntax <#syntax>`__
~~~~~~~~~~~~~~~~~~~~
.. container::
.. code::
#include <cert.h>
CERTCertificate *CERT_FindCertByIssuerAndSN (
CERTCertDBHandle *handle,
CERTIssuerAndSN *issuerAndSN );
`Parameters <#parameters>`__
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. container::
+-----------------+-------------------------------------------------------------------------------+
| ``handle`` | *in* pointer to a `CERTCertDBHandle </en-US/NSS/CERTCertDBHandle>`__ |
| | representing the certificate database to look in |
+-----------------+-------------------------------------------------------------------------------+
| ``issuerAndSN`` | *in* pointer to a `CERTIssuerAndSN </en-US/NSS/CERTIssuerAndSN>`__ that must |
| | be properly formed to contain the issuer name and the serial number (see |
| | [Example]) |
+-----------------+-------------------------------------------------------------------------------+
`Description <#description>`__
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. container::
This function creates a certificate key using the ``issuerAndSN`` and it then uses the key to
find the matching certificate in the database.
`Returns <#returns>`__
~~~~~~~~~~~~~~~~~~~~~~
.. container::
A pointer to a `CERTCertificate </en-US/NSS/CERTCertificate>`__ representing the certificate in
the database that matched the issuer and serial number, or ``NULL`` if none was found. The
certificate is a shallow copy, use
`CERT_DestroyCertificate </en-US/NSS/CERT_DestroyCertificate>`__ to decrement the reference count
on the certificate instance.
`Example <#example>`__
~~~~~~~~~~~~~~~~~~~~~~
.. container::
.. code::
CERTIssuerAndSN issuerSN;
issuerSN.derIssuer.data = caName->data;
issuerSN.derIssuer.len = caName->len;
issuerSN.serialNumber.data = authorityKeyID->authCertSerialNumber.data;
issuerSN.serialNumber.len = authorityKeyID->authCertSerialNumber.len;
issuerCert = CERT_FindCertByIssuerAndSN(cert->dbhandle, &issuerSN);
if ( issuerCert == NULL ) {
PORT_SetError (SEC_ERROR_UNKNOWN_ISSUER);
}
.. _see_also:
`See Also <#see_also>`__
~~~~~~~~~~~~~~~~~~~~~~~~
.. container::
Occurrences of
```CERT_FindCertByIssuerAndSN`` <http://lxr.mozilla.org/security/ident?i=CERT_FindCertByIssuerAndSN>`__
in the current NSS source code (generated by `LXR <http://lxr.mozilla.org/security/>`__).
|
