1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
/* passphrase.c - Passphrase callback.
Copyright (C) 2000 Werner Koch (dd9jn)
Copyright (C) 2001, 2002, 2003, 2004, 2005 g10 Code GmbH
This file is part of GPGME.
GPGME is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of
the License, or (at your option) any later version.
GPGME is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
#if HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <errno.h>
#include "gpgme.h"
#include "context.h"
#include "ops.h"
#include "util.h"
typedef struct
{
int no_passphrase;
char *uid_hint;
char *passphrase_info;
int bad_passphrase;
} *op_data_t;
static void
release_op_data (void *hook)
{
op_data_t opd = (op_data_t) hook;
if (opd->passphrase_info)
free (opd->passphrase_info);
if (opd->uid_hint)
free (opd->uid_hint);
}
gpgme_error_t
_gpgme_passphrase_status_handler (void *priv, gpgme_status_code_t code,
char *args)
{
gpgme_ctx_t ctx = (gpgme_ctx_t) priv;
gpgme_error_t err;
void *hook;
op_data_t opd;
err = _gpgme_op_data_lookup (ctx, OPDATA_PASSPHRASE, &hook,
sizeof (*opd), release_op_data);
opd = hook;
if (err)
return err;
switch (code)
{
case GPGME_STATUS_USERID_HINT:
if (opd->uid_hint)
free (opd->uid_hint);
if (!(opd->uid_hint = strdup (args)))
return gpg_error_from_errno (errno);
break;
case GPGME_STATUS_BAD_PASSPHRASE:
opd->bad_passphrase++;
opd->no_passphrase = 0;
break;
case GPGME_STATUS_GOOD_PASSPHRASE:
opd->bad_passphrase = 0;
opd->no_passphrase = 0;
break;
case GPGME_STATUS_NEED_PASSPHRASE:
case GPGME_STATUS_NEED_PASSPHRASE_SYM:
case GPGME_STATUS_NEED_PASSPHRASE_PIN:
if (opd->passphrase_info)
free (opd->passphrase_info);
opd->passphrase_info = strdup (args);
if (!opd->passphrase_info)
return gpg_error_from_errno (errno);
break;
case GPGME_STATUS_MISSING_PASSPHRASE:
opd->no_passphrase = 1;
break;
case GPGME_STATUS_EOF:
if (opd->no_passphrase || opd->bad_passphrase)
return gpg_error (GPG_ERR_BAD_PASSPHRASE);
break;
default:
/* Ignore all other codes. */
break;
}
return 0;
}
gpgme_error_t
_gpgme_passphrase_command_handler (void *priv, gpgme_status_code_t code,
const char *key, int fd, int *processed)
{
gpgme_ctx_t ctx = (gpgme_ctx_t) priv;
gpgme_error_t err;
void *hook;
op_data_t opd;
assert (ctx->passphrase_cb);
err = _gpgme_op_data_lookup (ctx, OPDATA_PASSPHRASE, &hook,
sizeof (*opd), release_op_data);
opd = hook;
if (err)
return err;
if (code == GPGME_STATUS_GET_HIDDEN
&& (!strcmp (key, "passphrase.enter")
|| !strcmp (key, "passphrase.pin.ask")))
{
if (processed)
*processed = 1;
err = ctx->passphrase_cb (ctx->passphrase_cb_value,
opd->uid_hint, opd->passphrase_info,
opd->bad_passphrase, fd);
/* Reset bad passphrase flag, in case it is correct now. */
opd->bad_passphrase = 0;
return err;
}
return 0;
}
|
