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
|
/*
* Copyright © 2012-2013 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>.
* Copyright © 2012 Canonical Ltd. All rights reserved.
*
* Author(s): Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
* David Barth <david.barth@canonical.com>
*
*/
#include <pwd.h>
#include <errno.h>
#include <unistd.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <stdio.h>
static struct passwd guest = { "guest",
"password",
500, 500,
"M. Guest",
"/tmp",
"/bin/true" };
struct passwd *
getpwnam (const char __attribute__((unused)) *username)
{ return &guest; }
int
setgroups(size_t __attribute__((unused)) size,
const __attribute__((unused)) gid_t *list)
{
errno = EPERM;
return -1;
}
int
setgid(gid_t __attribute__((unused)) gid)
{ return 0; }
int
setuid(uid_t __attribute__((unused)) uid)
{ return 0; }
int
setegid(gid_t __attribute__((unused)) gid)
{ return 0; }
int
seteuid(uid_t __attribute__((unused)) uid)
{ return 0; }
int chmod(const char __attribute__((unused)) *path,
mode_t __attribute__((unused)) mode)
{ return 0; }
int chown(const char __attribute__((unused)) *path,
uid_t __attribute__((unused)) owner,
gid_t __attribute__((unused)) group)
{ return 0; }
int execvp(const char __attribute__((unused)) *file,
char __attribute__((unused)) *const argv[])
{
return 0;
}
/* wrap _exit, to make sure the gcov_exit function installed with atexit()
is really called to collect coverage statistics */
void _exit (int exitcode)
{
exit (exitcode);
}
#define BUFFER_SIZE 512
int
socket_sucker ()
{
int socket_fd = 0;
int servlen = 0;
struct sockaddr_un serv_addr;
bzero((char *)&serv_addr, sizeof(serv_addr));
const char * home = getenv("HOME");
if (home == NULL) {
return -1;
}
serv_addr.sun_family = AF_UNIX;
int printsize = snprintf(serv_addr.sun_path, sizeof(serv_addr.sun_path) - 1, "%s/%s", home, ".x2go-socket");
if (printsize > sizeof(serv_addr.sun_path) - 1 || printsize < 0) {
return -1;
}
servlen = strlen(serv_addr.sun_path) + sizeof(serv_addr.sun_family);
if ((socket_fd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
return -1;
}
if (connect(socket_fd, (struct sockaddr *)&serv_addr, servlen) < 0) {
return -1;
}
char buffer[BUFFER_SIZE + 2];
int in = 0;
int out = 0;
in = read(socket_fd, buffer, BUFFER_SIZE);
if (in > 0) {
out = write(1, buffer, in);
}
close(socket_fd);
if (in > 0 && out > 0 && in == out) {
return 0;
} else {
return -1;
}
}
|
