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
|
/*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*/
/*
* Copyright (c) 2014 Joyent, Inc. All rights reserved.
*/
/*
* Make sure that we can't open the vnd control device with invalid flags.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <stdio.h>
#define VND_PATH "/dev/vnd/ctl"
int
main(void)
{
int fd;
fd = open(VND_PATH, O_RDONLY | O_EXCL);
if (fd != -1) {
(void) fprintf(stderr, "somehow opened vnd O_EXCL!");
return (1);
}
fd = open(VND_PATH, O_RDWR | O_EXCL);
if (fd != -1) {
(void) fprintf(stderr, "somehow opened vnd O_EXCL!");
return (1);
}
fd = open(VND_PATH, O_WRONLY | O_EXCL);
if (fd != -1) {
(void) fprintf(stderr, "somehow opened vnd O_EXCL!");
return (1);
}
fd = open(VND_PATH, O_RDONLY | O_NDELAY);
if (fd != -1) {
(void) fprintf(stderr, "somehow opened vnd O_NDELAY!");
return (1);
}
fd = open(VND_PATH, O_RDWR | O_NDELAY);
if (fd != -1) {
(void) fprintf(stderr, "somehow opened vnd O_NDELAY!");
return (1);
}
fd = open(VND_PATH, O_WRONLY | O_NDELAY);
if (fd != -1) {
(void) fprintf(stderr, "somehow opened vnd O_NDELAY!");
return (1);
}
fd = open(VND_PATH, O_RDONLY | O_NDELAY | O_EXCL);
if (fd != -1) {
(void) fprintf(stderr, "somehow opened vnd O_NDELAY | O_EXCL!");
return (1);
}
fd = open(VND_PATH, O_RDWR | O_NDELAY | O_EXCL);
if (fd != -1) {
(void) fprintf(stderr, "somehow opened vnd O_NDELAY | O_EXCL!");
return (1);
}
fd = open(VND_PATH, O_WRONLY | O_NDELAY | O_EXCL);
if (fd != -1) {
(void) fprintf(stderr, "somehow opened vnd O_NDELAY | O_EXCL!");
return (1);
}
return (0);
}
|