crypto/heimdal-0.6.3/lib/gssapi/release_cred.c

   1 /*
   2  * Copyright (c) 1997-2003 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #include "gssapi_locl.h"
  35
  36 RCSID("$Id: release_cred.c,v 1.8.2.1 2003/10/07 01:08:21 lha Exp $");
  37
  38 OM_uint32 gss_release_cred
  39            (OM_uint32 * minor_status,
  40             gss_cred_id_t * cred_handle
  41            )
  42 {
  43     *minor_status = 0;
  44
  45     if (*cred_handle == GSS_C_NO_CREDENTIAL) {
  46         return GSS_S_COMPLETE;
  47     }
  48
  49     GSSAPI_KRB5_INIT ();
  50
  51     if ((*cred_handle)->principal != NULL)
  52         krb5_free_principal(gssapi_krb5_context, (*cred_handle)->principal);
  53     if ((*cred_handle)->keytab != NULL)
  54         krb5_kt_close(gssapi_krb5_context, (*cred_handle)->keytab);
  55     if ((*cred_handle)->ccache != NULL) {
  56         const krb5_cc_ops *ops;
  57         ops = krb5_cc_get_ops(gssapi_krb5_context, (*cred_handle)->ccache);
  58         if (ops == &krb5_mcc_ops)
  59             krb5_cc_destroy(gssapi_krb5_context, (*cred_handle)->ccache);
  60         else
  61             krb5_cc_close(gssapi_krb5_context, (*cred_handle)->ccache);
  62     }
  63     gss_release_oid_set(NULL, &(*cred_handle)->mechanisms);
  64     free(*cred_handle);
  65     *cred_handle = GSS_C_NO_CREDENTIAL;
  66     return GSS_S_COMPLETE;
  67 }
  68