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
|
/*
* Copyright © 2012-2013 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
* Copyright © 2012 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 3, as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranties of
* MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Author: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
* Author libpam-freerdp (where we forked from): Ted Gould <ted@canonical.com>
*/
#include <libssh/libssh.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/mman.h>
int
main (int argc, char * argv[])
{
int verbosity = SSH_LOG_NOLOG;
char password[512];
if (argc != 4) {
printf("Not enough params");
return -1;
}
if (scanf("%511s", password) != 1) {
return -1;
}
if (mlock(password, sizeof(password)) != 0) {
return -1;
}
ssh_session auth_check_ssh_session = ssh_new();
ssh_options_set ( auth_check_ssh_session, SSH_OPTIONS_LOG_VERBOSITY, &verbosity );
ssh_options_set ( auth_check_ssh_session, SSH_OPTIONS_USER, argv[2] );
char * colonloc = strstr(argv[1], ":");
if (colonloc != NULL) {
/* We've got a port to deal with */
colonloc[0] = '\0';
colonloc++;
long port = strtoul(colonloc, NULL, 10);
char *array[2];
array[0] = strtok( argv[1], ":" );
char *hostname = array[0];
ssh_options_set ( auth_check_ssh_session, SSH_OPTIONS_HOST, hostname );
ssh_options_set ( auth_check_ssh_session, SSH_OPTIONS_PORT, &port );
} else {
ssh_options_set ( auth_check_ssh_session, SSH_OPTIONS_HOST, argv[1] );
}
int rc;
rc = ssh_connect ( auth_check_ssh_session );
if ( rc != SSH_OK ) {
fprintf ( stderr, "Error connecting to via SSH: %s\n", ssh_get_error ( auth_check_ssh_session ) );
ssh_free(auth_check_ssh_session);
return -1;
}
rc = ssh_userauth_password ( auth_check_ssh_session, NULL, password );
if ( rc != SSH_AUTH_SUCCESS ) {
fprintf ( stderr, "Error connecting to via SSH: %s\n", ssh_get_error ( auth_check_ssh_session ) );
ssh_disconnect(auth_check_ssh_session);
ssh_free(auth_check_ssh_session);
return -1;
}
memset(password, 0, sizeof(password));
munlock(password, sizeof(password));
return 0;
}
|
