NAME

CSSM_CL_CertGetNextFieldValue

SYNOPSIS

CSSM_DATA_PTR CSSMAPI CSSM_CL_CertGetNextFieldValue
    (CSSM_CL_HANDLE CLHandle,
    CSSM_HANDLE ResultsHandle)

DESCRIPTION

This function returns the value of a certificate field, when that field occurs multiple times in a certificate. Certificates with repeated fields (such as multiple signatures) have multiple field values corresponding to a single OID. A call to the function CSSM_CL_CertGetFirstFieldValue initiates the process and returns a results handle identifying the certificate from which values are being obtained and the OID corresponding to those values. The CSSM_CL_CertGetNextFieldValue function can be called repeatedly to obtain these values, one at a time.

PARAMETERS

CLHandle (input)

The handle that describes the add-in certificate library module used to perform this function.

ResultsHandle (input)

The handle which identifies the results of a certificate query.

RETURN VALUE

A pointer to the CSSM_DATA structure containing the value of the requested field. If the pointer is NULL, an error has occurred. Use CSSM_GetError to obtain the error code.

ERRORS

CSSM_CL_INVALID_CL_HANDLE

Invalid Certificate Library handle.

CSSM_CL_INVALID_RESULTS_HANDLE

Invalid Results handle.

CSSM_CL_NO_FIELD_VALUES

No more field values for the input handle.

CSSM_CL_MEMORY_ERROR

Not enough memory.

CSSM_CL_UNSUPPORTED_OPERATION

Add-in does not support this function.

CSSM_CL_CERT_GET_FIELD_VALUE_FAIL

Unable to get field value.

SEE ALSO

CSSM_CL_CertGetFirstFieldValue, CSSM_CL_CertAbortQuery