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      1 /*	$NetBSD: release_cred.c,v 1.2 2017/01/28 21:31:46 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1997-2003 Kungliga Tekniska Hgskolan
      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 
     79