crypto/external/bsd/heimdal/dist/lib/gssapi/krb5/release_cred.c

   1 /*      $NetBSD: release_cred.c,v 1.1.1.1 2011/04/13 18:14:45 elric Exp $       */
   2
   3 /*
   4  * Copyright (c) 1997-2003 Kungliga Tekniska Högskolan
   5  * (Royal Institute of Technology, Stockholm, Sweden).
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * 3. Neither the name of the Institute nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include "gsskrb5_locl.h"
  37
  38 OM_uint32 GSSAPI_CALLCONV _gsskrb5_release_cred
  39            (OM_uint32 * minor_status,
  40             gss_cred_id_t * cred_handle
  41            )
  42 {
  43     krb5_context context;
  44     gsskrb5_cred cred;
  45     OM_uint32 junk;
  46
  47     *minor_status = 0;
  48
  49     if (*cred_handle == NULL)
  50         return GSS_S_COMPLETE;
  51
  52     cred = (gsskrb5_cred)*cred_handle;
  53     *cred_handle = GSS_C_NO_CREDENTIAL;
  54
  55     GSSAPI_KRB5_INIT (&context);
  56
  57     HEIMDAL_MUTEX_lock(&cred->cred_id_mutex);
  58
  59     if (cred->principal != NULL)
  60         krb5_free_principal(context, cred->principal);
  61     if (cred->keytab != NULL)
  62         krb5_kt_close(context, cred->keytab);
  63     if (cred->ccache != NULL) {
  64         if (cred->cred_flags & GSS_CF_DESTROY_CRED_ON_RELEASE)
  65             krb5_cc_destroy(context, cred->ccache);
  66         else
  67             krb5_cc_close(context, cred->ccache);
  68     }
  69     gss_release_oid_set(&junk, &cred->mechanisms);
  70     if (cred->enctypes)
  71         free(cred->enctypes);
  72     HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex);
  73     HEIMDAL_MUTEX_destroy(&cred->cred_id_mutex);
  74     memset(cred, 0, sizeof(*cred));
  75     free(cred);
  76     return GSS_S_COMPLETE;
  77 }
  78