lib/gssapi/krb5/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 "gsskrb5_locl.h"
  35
  36 OM_uint32 _gsskrb5_release_cred
  37            (OM_uint32 * minor_status,
  38             gss_cred_id_t * cred_handle
  39            )
  40 {
  41     krb5_context context;
  42     gsskrb5_cred cred;
  43     OM_uint32 junk;
  44
  45     *minor_status = 0;
  46
  47     if (*cred_handle == NULL)
  48         return GSS_S_COMPLETE;
  49
  50     cred = (gsskrb5_cred)*cred_handle;
  51     *cred_handle = GSS_C_NO_CREDENTIAL;
  52
  53     GSSAPI_KRB5_INIT (&context);
  54
  55     HEIMDAL_MUTEX_lock(&cred->cred_id_mutex);
  56
  57     if (cred->principal != NULL)
  58         krb5_free_principal(context, cred->principal);
  59     if (cred->keytab != NULL)
  60         krb5_kt_close(context, cred->keytab);
  61     if (cred->ccache != NULL) {
  62         if (cred->cred_flags & GSS_CF_DESTROY_CRED_ON_RELEASE)
  63             krb5_cc_destroy(context, cred->ccache);
  64         else
  65             krb5_cc_close(context, cred->ccache);
  66     }
  67     gss_release_oid_set(&junk, &cred->mechanisms);
  68     if (cred->enctypes)
  69         free(cred->enctypes);
  70     HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex);
  71     HEIMDAL_MUTEX_destroy(&cred->cred_id_mutex);
  72     memset(cred, 0, sizeof(*cred));
  73     free(cred);
  74     return GSS_S_COMPLETE;
  75 }
  76