krb5_gss_validate_cred
major_status = krb5_gss_validate_cred((OM_uint32*) &code,
stat = krb5_gss_validate_cred(minor_status, cred_handle);
major_status = krb5_gss_validate_cred(minor_status, claimant_cred_handle);
major = krb5_gss_validate_cred(minor_status, cred_handle);
major_status = krb5_gss_validate_cred(&temp_status, cred_handle);
OM_uint32 krb5_gss_validate_cred