pticket.c
3.38 KB
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
/* GNU mailutils - a suite of utilities for electronic mail
Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Library Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program 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 Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <errno.h>
#include <sys/types.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <termios.h>
#include <mailutils/error.h>
#include <mailutils/refcount.h>
#include <mailutils/sys/pticket.h>
static void
echo_off(struct termios *stored_settings)
{
struct termios new_settings;
tcgetattr (0, stored_settings);
new_settings = *stored_settings;
new_settings.c_lflag &= (~ECHO);
tcsetattr (0, TCSANOW, &new_settings);
}
static void
echo_on(struct termios *stored_settings)
{
tcsetattr (0, TCSANOW, stored_settings);
}
int
_ticket_prompt_ref (ticket_t ticket)
{
struct _ticket_prompt *prompt = (struct _ticket_prompt *)ticket;
return mu_refcount_inc (prompt->refcount);
}
void
_ticket_prompt_destroy (ticket_t *pticket)
{
struct _ticket_prompt *prompt = (struct _ticket_prompt *)*pticket;
if (mu_refcount_dec (prompt->refcount) == 0)
{
mu_refcount_destroy (&prompt->refcount);
free (prompt);
}
}
int
_ticket_prompt_pop (ticket_t ticket, const char *challenge, char **parg)
{
char arg[256];
struct termios stored_settings;
int echo = 1;
(void)ticket;
/* Being smart if we see "Passwd" and turning off echo. */
if (strstr (challenge, "ass") != NULL
|| strstr (challenge, "ASS") != NULL)
echo = 0;
fprintf (stdout, "%s", challenge);
fflush (stdout);
if (!echo)
echo_off (&stored_settings);
fgets (arg, sizeof (arg), stdin);
if (!echo)
{
echo_on (&stored_settings);
fputc ('\n', stdout);
fflush (stdout);
}
arg [strlen (arg) - 1] = '\0'; /* nuke the trailing line. */
*parg = strdup (arg);
return 0;
}
static struct _ticket_vtable _ticket_prompt_vtable =
{
_ticket_prompt_ref,
_ticket_prompt_destroy,
_ticket_prompt_pop,
};
int
_ticket_prompt_ctor (struct _ticket_prompt *prompt)
{
mu_refcount_create (&prompt->refcount);
if (prompt->refcount == NULL)
return MU_ERROR_NO_MEMORY;
prompt->base.vtable = &_ticket_prompt_vtable;
return 0;
}
void
_ticket_prompt_dtor (ticket_t ticket)
{
struct _ticket_prompt *prompt = (struct _ticket_prompt *)ticket;
if (prompt)
mu_refcount_destroy (&prompt->refcount);
}
int
ticket_prompt_create (ticket_t *pticket)
{
struct _ticket_prompt *prompt;
int status;
if (pticket == NULL)
return MU_ERROR_INVALID_PARAMETER;
prompt = calloc (1, sizeof *prompt);
if (prompt == NULL)
return MU_ERROR_NO_MEMORY;
status = _ticket_prompt_ctor (prompt);
if (status != 0)
{
free (prompt);
return status;
}
*pticket = &prompt->base;
return 0;
}