ticket.c
3.59 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
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
/* 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/mutil.h>
#include <auth0.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_create (ticket_t *pticket, void *owner)
{
ticket_t ticket;
if (pticket == NULL)
return EINVAL;
ticket = calloc (1, sizeof (*ticket));
if (ticket == NULL)
return ENOMEM;
ticket->owner = owner;
*pticket = ticket;
return 0;
}
void
ticket_destroy (ticket_t *pticket, void *owner)
{
if (pticket && *pticket)
{
ticket_t ticket = *pticket;
if (ticket->owner == owner)
{
if (ticket->_destroy)
ticket->_destroy (ticket);
if (ticket->challenge)
free (ticket->challenge);
free (ticket);
}
*pticket = NULL;
}
}
int
ticket_set_destroy (ticket_t ticket, void (*_destroy) __P ((ticket_t)),
void *owner)
{
if (ticket == NULL)
return EINVAL;
if (ticket->owner != owner)
return EACCES;
ticket->_destroy = _destroy;
return 0;
}
void *
ticket_get_owner (ticket_t ticket)
{
return (ticket) ? ticket->owner : NULL;
}
int
ticket_set_pop (ticket_t ticket,
int (*_pop) __P ((ticket_t, const char *, char **)),
void *owner)
{
if (ticket == NULL)
return EINVAL;
if (ticket->owner != owner)
return EACCES;
ticket->_pop = _pop;
return 0;
}
int
ticket_pop (ticket_t ticket, const char *challenge, char **parg)
{
if (ticket == NULL || parg == NULL)
return EINVAL;
if (ticket->_pop)
return ticket->_pop (ticket, challenge, parg);
else
{
char arg[256];
struct termios stored_settings;
int echo = 1;
/* Being smart if we see "Passwd" and turning off echo. */
if (strstr (challenge, "ass") != NULL
|| strstr (challenge, "ASS") != NULL)
echo = 0;
printf ("%s", challenge);
fflush (stdout);
if (!echo)
echo_off (&stored_settings);
fgets (arg, sizeof (arg), stdin);
if (!echo)
{
echo_on (&stored_settings);
putchar ('\n');
fflush (stdout);
}
arg [strlen (arg) - 1] = '\0'; /* nuke the trailing line. */
*parg = strdup (arg);
}
return 0;
}
int
ticket_get_data (ticket_t ticket, void **data)
{
if (ticket == NULL || data == NULL)
return EINVAL;
*data = ticket->data;
return 0;
}
int
ticket_set_data (ticket_t ticket, void *data, void *owner)
{
if (ticket == NULL)
return EINVAL;
if (ticket->owner != owner)
return EACCES;
ticket->data = data;
return 0;
}