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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 GSSAPI_CALLCONV _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