xref: /netbsd-src/crypto/external/bsd/libsaslc/dist/src/mech_anonymous.c (revision c2f76ff004a2cb67efe5b12d97bd3ef7fe89e18d)
1 /* $Id: mech_anonymous.c,v 1.1.1.1 2010/11/27 21:23:59 agc Exp $ */
2 
3 /* Copyright (c) 2010 The NetBSD Foundation, Inc.
4  * All rights reserved.
5  *
6  * This code is derived from software contributed to The NetBSD Foundation
7  * by Mateusz Kocielski.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  * 3. All advertising materials mentioning features or use of this software
18  *    must display the following acknowledgement:
19  *        This product includes software developed by the NetBSD
20  *        Foundation, Inc. and its contributors.
21  * 4. Neither the name of The NetBSD Foundation nor the names of its
22  *    contributors may be used to endorse or promote products derived
23  *    from this software without specific prior written permission.
24  *
25  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
26  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28  * PURPOSE ARE DISCLAIMED.	IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35  * POSSIBILITY OF SUCH DAMAGE.
36  */
37 
38 #include <saslc.h>
39 #include <stdio.h>
40 #include <string.h>
41 #include "error.h"
42 #include "saslc_private.h"
43 #include "mech.h"
44 
45 /* local headers */
46 
47 /* properties */
48 #define SASLC_ANONYMOUS_TOKEN	 "TOKEN"
49 
50 static int saslc__mech_anonymous_cont(saslc_sess_t *, const void *, size_t,
51     void **, size_t *);
52 
53 /*
54  * @brief doing one step of the sasl authentication
55  *
56  * @param sess sasl session
57  * @param in input data
58  * @param inlen input data length
59  * @param out place to store output data
60  * @param outlen output data length
61  * @return
62  * MECH_OK - success,
63  * MECH_STEP - more steps are needed,
64  * MECH_ERROR - error
65  */
66 
67 /*ARGSUSED*/
68 static int
69 saslc__mech_anonymous_cont(saslc_sess_t *sess, const void *in, size_t inlen,
70     void **out, size_t *outlen)
71 {
72 	return saslc__mech_strdup(sess, (char **)out, outlen,
73 	    SASLC_ANONYMOUS_TOKEN, "token is required for an authentication");
74 }
75 
76 /* mechanism definition */
77 const saslc__mech_t saslc__mech_anonymous = {
78 	"ANONYMOUS", /* name */
79 	FLAG_ANONYMOUS, /* flags */
80 	saslc__mech_generic_create, /* create */
81 	saslc__mech_anonymous_cont, /* step */
82 	NULL, /* encode */
83 	NULL, /* decode */
84 	saslc__mech_generic_destroy /* destroy */
85 };
86