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
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
|
use std::io::Write;
use std::path::Path;
use std::os::unix::prelude::*;
use tempfile::tempfile;
use nix::fcntl::{OFlag, open};
use nix::pty::*;
use nix::sys::stat;
use nix::sys::termios::*;
use nix::unistd::{write, close};
/// Regression test for Issue #659
/// This is the correct way to explicitly close a PtyMaster
#[test]
fn test_explicit_close() {
let mut f = {
let m = posix_openpt(OFlag::O_RDWR).unwrap();
close(m.into_raw_fd()).unwrap();
tempfile().unwrap()
};
// This should work. But if there's been a double close, then it will
// return EBADF
f.write_all(b"whatever").unwrap();
}
/// Test equivalence of `ptsname` and `ptsname_r`
#[test]
#[cfg(any(target_os = "android", target_os = "linux"))]
fn test_ptsname_equivalence() {
#[allow(unused_variables)]
let m = ::PTSNAME_MTX.lock().expect("Mutex got poisoned by another test");
// Open a new PTTY master
let master_fd = posix_openpt(OFlag::O_RDWR).unwrap();
assert!(master_fd.as_raw_fd() > 0);
// Get the name of the slave
let slave_name = unsafe { ptsname(&master_fd) }.unwrap() ;
let slave_name_r = ptsname_r(&master_fd).unwrap();
assert_eq!(slave_name, slave_name_r);
}
/// Test data copying of `ptsname`
// TODO need to run in a subprocess, since ptsname is non-reentrant
#[test]
#[cfg(any(target_os = "android", target_os = "linux"))]
fn test_ptsname_copy() {
#[allow(unused_variables)]
let m = ::PTSNAME_MTX.lock().expect("Mutex got poisoned by another test");
// Open a new PTTY master
let master_fd = posix_openpt(OFlag::O_RDWR).unwrap();
assert!(master_fd.as_raw_fd() > 0);
// Get the name of the slave
let slave_name1 = unsafe { ptsname(&master_fd) }.unwrap();
let slave_name2 = unsafe { ptsname(&master_fd) }.unwrap();
assert!(slave_name1 == slave_name2);
// Also make sure that the string was actually copied and they point to different parts of
// memory.
assert!(slave_name1.as_ptr() != slave_name2.as_ptr());
}
/// Test data copying of `ptsname_r`
#[test]
#[cfg(any(target_os = "android", target_os = "linux"))]
fn test_ptsname_r_copy() {
// Open a new PTTY master
let master_fd = posix_openpt(OFlag::O_RDWR).unwrap();
assert!(master_fd.as_raw_fd() > 0);
// Get the name of the slave
let slave_name1 = ptsname_r(&master_fd).unwrap();
let slave_name2 = ptsname_r(&master_fd).unwrap();
assert!(slave_name1 == slave_name2);
assert!(slave_name1.as_ptr() != slave_name2.as_ptr());
}
/// Test that `ptsname` returns different names for different devices
#[test]
#[cfg(any(target_os = "android", target_os = "linux"))]
fn test_ptsname_unique() {
#[allow(unused_variables)]
let m = ::PTSNAME_MTX.lock().expect("Mutex got poisoned by another test");
// Open a new PTTY master
let master1_fd = posix_openpt(OFlag::O_RDWR).unwrap();
assert!(master1_fd.as_raw_fd() > 0);
// Open a second PTTY master
let master2_fd = posix_openpt(OFlag::O_RDWR).unwrap();
assert!(master2_fd.as_raw_fd() > 0);
// Get the name of the slave
let slave_name1 = unsafe { ptsname(&master1_fd) }.unwrap();
let slave_name2 = unsafe { ptsname(&master2_fd) }.unwrap();
assert!(slave_name1 != slave_name2);
}
/// Test opening a master/slave PTTY pair
///
/// This is a single larger test because much of these functions aren't useful by themselves. So for
/// this test we perform the basic act of getting a file handle for a connect master/slave PTTY
/// pair.
#[test]
fn test_open_ptty_pair() {
#[allow(unused_variables)]
let m = ::PTSNAME_MTX.lock().expect("Mutex got poisoned by another test");
// Open a new PTTY master
let master_fd = posix_openpt(OFlag::O_RDWR).expect("posix_openpt failed");
assert!(master_fd.as_raw_fd() > 0);
// Allow a slave to be generated for it
grantpt(&master_fd).expect("grantpt failed");
unlockpt(&master_fd).expect("unlockpt failed");
// Get the name of the slave
let slave_name = unsafe { ptsname(&master_fd) }.expect("ptsname failed");
// Open the slave device
let slave_fd = open(Path::new(&slave_name), OFlag::O_RDWR, stat::Mode::empty()).unwrap();
assert!(slave_fd > 0);
}
#[test]
fn test_openpty() {
// openpty uses ptname(3) internally
#[allow(unused_variables)]
let m = ::PTSNAME_MTX.lock().expect("Mutex got poisoned by another test");
let pty = openpty(None, None).unwrap();
assert!(pty.master > 0);
assert!(pty.slave > 0);
// Writing to one should be readable on the other one
let string = "foofoofoo\n";
let mut buf = [0u8; 10];
write(pty.master, string.as_bytes()).unwrap();
::read_exact(pty.slave, &mut buf);
assert_eq!(&buf, string.as_bytes());
// Read the echo as well
let echoed_string = "foofoofoo\r\n";
let mut buf = [0u8; 11];
::read_exact(pty.master, &mut buf);
assert_eq!(&buf, echoed_string.as_bytes());
let string2 = "barbarbarbar\n";
let echoed_string2 = "barbarbarbar\r\n";
let mut buf = [0u8; 14];
write(pty.slave, string2.as_bytes()).unwrap();
::read_exact(pty.master, &mut buf);
assert_eq!(&buf, echoed_string2.as_bytes());
close(pty.master).unwrap();
close(pty.slave).unwrap();
}
#[test]
fn test_openpty_with_termios() {
// openpty uses ptname(3) internally
#[allow(unused_variables)]
let m = ::PTSNAME_MTX.lock().expect("Mutex got poisoned by another test");
// Open one pty to get attributes for the second one
let mut termios = {
let pty = openpty(None, None).unwrap();
assert!(pty.master > 0);
assert!(pty.slave > 0);
let termios = tcgetattr(pty.master).unwrap();
close(pty.master).unwrap();
close(pty.slave).unwrap();
termios
};
// Make sure newlines are not transformed so the data is preserved when sent.
termios.output_flags.remove(OutputFlags::ONLCR);
let pty = openpty(None, &termios).unwrap();
// Must be valid file descriptors
assert!(pty.master > 0);
assert!(pty.slave > 0);
// Writing to one should be readable on the other one
let string = "foofoofoo\n";
let mut buf = [0u8; 10];
write(pty.master, string.as_bytes()).unwrap();
::read_exact(pty.slave, &mut buf);
assert_eq!(&buf, string.as_bytes());
// read the echo as well
let echoed_string = "foofoofoo\n";
::read_exact(pty.master, &mut buf);
assert_eq!(&buf, echoed_string.as_bytes());
let string2 = "barbarbarbar\n";
let echoed_string2 = "barbarbarbar\n";
let mut buf = [0u8; 13];
write(pty.slave, string2.as_bytes()).unwrap();
::read_exact(pty.master, &mut buf);
assert_eq!(&buf, echoed_string2.as_bytes());
close(pty.master).unwrap();
close(pty.slave).unwrap();
}
|
