xref: /freebsd/crypto/heimdal/lib/gssapi/mech/gss_oid_to_str.c (revision 09a53ad8f1318c5daae6cfb19d97f4f6459f0013)
1 /*
2  * Copyright (c) 2006 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 "mech_locl.h"
35 
36 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
37 gss_oid_to_str(OM_uint32 *minor_status, gss_OID oid, gss_buffer_t oid_str)
38 {
39     int ret;
40     size_t size;
41     heim_oid o;
42     char *p;
43 
44     _mg_buffer_zero(oid_str);
45 
46     if (oid == GSS_C_NULL_OID)
47 	return GSS_S_FAILURE;
48 
49     ret = der_get_oid (oid->elements, oid->length, &o, &size);
50     if (ret) {
51 	*minor_status = ret;
52 	return GSS_S_FAILURE;
53     }
54 
55     ret = der_print_heim_oid(&o, ' ', &p);
56     der_free_oid(&o);
57     if (ret) {
58 	*minor_status = ret;
59 	return GSS_S_FAILURE;
60     }
61 
62     oid_str->value = p;
63     oid_str->length = strlen(p);
64 
65     *minor_status = 0;
66     return GSS_S_COMPLETE;
67 }
68 
69 GSSAPI_LIB_FUNCTION const char * GSSAPI_LIB_CALL
70 gss_oid_to_name(gss_const_OID oid)
71 {
72     size_t i;
73 
74     for (i = 0; _gss_ont_mech[i].oid; i++) {
75 	if (gss_oid_equal(oid, _gss_ont_mech[i].oid))
76 	    return _gss_ont_mech[i].name;
77     }
78     return NULL;
79 }
80 
81 GSSAPI_LIB_FUNCTION gss_OID GSSAPI_LIB_CALL
82 gss_name_to_oid(const char *name)
83 {
84     size_t i, partial = (size_t)-1;
85 
86     for (i = 0; _gss_ont_mech[i].oid; i++) {
87 	if (strcasecmp(name, _gss_ont_mech[i].short_desc) == 0)
88 	    return _gss_ont_mech[i].oid;
89 	if (strncasecmp(name, _gss_ont_mech[i].short_desc, strlen(name)) == 0) {
90 	    if (partial != (size_t)-1)
91 		return NULL;
92 	    partial = i;
93 	}
94     }
95     if (partial != (size_t)-1)
96 	return _gss_ont_mech[partial].oid;
97     return NULL;
98 }
99