1/* server.c --- ANONYMOUS mechanism as defined in RFC 2245, server side.
2 * Copyright (C) 2002-2012 Simon Josefsson
3 *
4 * This file is part of GNU SASL Library.
5 *
6 * GNU SASL Library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public License
8 * as published by the Free Software Foundation; either version 2.1 of
9 * the License, or (at your option) any later version.
10 *
11 * GNU SASL Library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with GNU SASL Library; if not, write to the Free
18 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 *
21 */
22
23#ifdef HAVE_CONFIG_H
24#include "config.h"
25#endif
26
27/* Get specification. */
28#include "anonymous.h"
29
30int
31_gsasl_anonymous_server_step (Gsasl_session * sctx,
32 void *mech_data,
33 const char *input, size_t input_len,
34 char **output, size_t * output_len)
35{
36 *output = NULL;
37 *output_len = 0;
38
39 if (!input)
40 return GSASL_NEEDS_MORE;
41
42 /* token = 1*255TCHAR
43 The <token> production is restricted to 255 UTF-8 encoded Unicode
44 characters. As the encoding of a characters uses a sequence of 1
45 to 4 octets, a token may be long as 1020 octets. */
46 if (input_len == 0 || input_len > 1020)
47 return GSASL_MECHANISM_PARSE_ERROR;
48
49 /* FIXME: Validate that input is UTF-8. */
50
51 gsasl_property_set_raw (sctx, GSASL_ANONYMOUS_TOKEN, input, input_len);
52
53 return gsasl_callback (NULL, sctx, GSASL_VALIDATE_ANONYMOUS);
54}
55