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1 /* #ident  "@(#)gss_indicate_mechs.c 1.13     95/08/04 SMI" */
2
3 /*
4  * Copyright 1996 by Sun Microsystems, Inc.
5  *
6  * Permission to use, copy, modify, distribute, and sell this software
7  * and its documentation for any purpose is hereby granted without fee,
8  * provided that the above copyright notice appears in all copies and
9  * that both that copyright notice and this permission notice appear in
10  * supporting documentation, and that the name of Sun Microsystems not be used
11  * in advertising or publicity pertaining to distribution of the software
12  * without specific, written prior permission. Sun Microsystems makes no
13  * representations about the suitability of this software for any
14  * purpose.  It is provided "as is" without express or implied warranty.
15  *
16  * SUN MICROSYSTEMS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
17  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
18  * EVENT SHALL SUN MICROSYSTEMS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
19  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
20  * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
21  * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
22  * PERFORMANCE OF THIS SOFTWARE.
23  */
24
25 /*
26  *  glue routine for gss_indicate_mechs
27  */
28
29 #include "mglueP.h"
30 #include <stdio.h>
31 #ifdef HAVE_STDLIB_H
32 #include <stdlib.h>
33 #endif
34 #include <string.h>
35
36 extern gss_mechanism *__gss_mechs_array;
37
38 static gss_OID_set_desc supported_mechs_desc;
39 static gss_OID_set supported_mechs = NULL;
40
41 OM_uint32 KRB5_CALLCONV
42 gss_indicate_mechs (minor_status,
43                     mech_set)
44
45 OM_uint32 *             minor_status;
46 gss_OID_set *           mech_set;
47
48 {
49     int i;
50
51     gss_initialize();
52
53     if (minor_status)
54         *minor_status = 0;
55
56     /*
57      * If we have already computed the mechanisms supported, return
58      * a pointer to it. Otherwise, compute them and return the pointer.
59      */
60
61     if(supported_mechs == NULL) {
62
63         supported_mechs = &supported_mechs_desc;
64         supported_mechs->count = 0;
65
66         /* Build the mech_set from the OIDs in mechs_array. */
67
68         for(i=0; __gss_mechs_array[i]->mech_type.length != 0; i++)
69             supported_mechs->count++;
70
71         supported_mechs->elements =
72             (void *) malloc(supported_mechs->count *
73                             sizeof(gss_OID_desc));
74
75         for(i=0; i < supported_mechs->count; i++) {
76             supported_mechs->elements[i].length =
77                 __gss_mechs_array[i]->mech_type.length;
78             supported_mechs->elements[i].elements = (void *)
79                 malloc(__gss_mechs_array[i]->mech_type.length);
80             memcpy(supported_mechs->elements[i].elements,
81                    __gss_mechs_array[i]->mech_type.elements,
82                    __gss_mechs_array[i]->mech_type.length);
83         }
84     }
85
86     if(mech_set != NULL)
87         *mech_set = supported_mechs;
88
89     return(GSS_S_COMPLETE);
90 }