1/* client.c --- Non-standard SASL mechanism LOGIN, client 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 malloc, free. */
28#include <stdlib.h>
29
30/* Get strlen. */
31#include <string.h>
32
33/* Get specification. */
34#include "login.h"
35
36struct _Gsasl_login_client_state
37{
38 int step;
39};
40
41int
42_gsasl_login_client_start (Gsasl_session * sctx, void **mech_data)
43{
44 struct _Gsasl_login_client_state *state;
45
46 state = malloc (sizeof (*state));
47 if (state == NULL)
48 return GSASL_MALLOC_ERROR;
49
50 state->step = 0;
51
52 *mech_data = state;
53
54 return GSASL_OK;
55}
56
57int
58_gsasl_login_client_step (Gsasl_session * sctx,
59 void *mech_data,
60 const char *input, size_t input_len,
61 char **output, size_t * output_len)
62{
63 struct _Gsasl_login_client_state *state = mech_data;
64 const char *p;
65 int res;
66
67 switch (state->step)
68 {
69 case 0:
70 p = gsasl_property_get (sctx, GSASL_AUTHID);
71 if (!p)
72 return GSASL_NO_AUTHID;
73
74 *output = strdup (p);
75 *output_len = strlen (p);
76
77 state->step++;
78 res = GSASL_NEEDS_MORE;
79 break;
80
81 case 1:
82 p = gsasl_property_get (sctx, GSASL_PASSWORD);
83 if (!p)
84 return GSASL_NO_PASSWORD;
85
86 *output = strdup (p);
87 *output_len = strlen (*output);
88
89 state->step++;
90 res = GSASL_OK;
91 break;
92
93 default:
94 res = GSASL_MECHANISM_CALLED_TOO_MANY_TIMES;
95 break;
96 }
97
98 return res;
99}
100
101void
102_gsasl_login_client_finish (Gsasl_session * sctx, void *mech_data)
103{
104 struct _Gsasl_login_client_state *state = mech_data;
105
106 if (!state)
107 return;
108
109 free (state);
110}
111