xref: /freebsd/crypto/heimdal/lib/gssapi/krb5/ccache_name.c (revision 6a068746777241722b2b32c5d0bc443a2a64d80b)
1 /*
2  * Copyright (c) 2004 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 char *last_out_name;
37 
38 OM_uint32
_gsskrb5_krb5_ccache_name(OM_uint32 * minor_status,const char * name,const char ** out_name)39 _gsskrb5_krb5_ccache_name(OM_uint32 *minor_status,
40 			  const char *name,
41 			  const char **out_name)
42 {
43     krb5_context context;
44     krb5_error_code kret;
45 
46     *minor_status = 0;
47 
48     GSSAPI_KRB5_INIT(&context);
49 
50     if (out_name) {
51 	const char *n;
52 
53 	if (last_out_name) {
54 	    free(last_out_name);
55 	    last_out_name = NULL;
56 	}
57 
58 	n = krb5_cc_default_name(context);
59 	if (n == NULL) {
60 	    *minor_status = ENOMEM;
61 	    return GSS_S_FAILURE;
62 	}
63 	last_out_name = strdup(n);
64 	if (last_out_name == NULL) {
65 	    *minor_status = ENOMEM;
66 	    return GSS_S_FAILURE;
67 	}
68 	*out_name = last_out_name;
69     }
70 
71     kret = krb5_cc_set_default_name(context, name);
72     if (kret) {
73 	*minor_status = kret;
74 	return GSS_S_FAILURE;
75     }
76     return GSS_S_COMPLETE;
77 }
78