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
|
/*
* 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 2016 Joyent, Inc.
*/
/*
* Given a path to a tmpfs that has already been marked as full, attempt to
* perform certain activities on it, all of which should fail with ENOSPC.
*/
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/statvfs.h>
#include <fcntl.h>
#include <errno.h>
#include <strings.h>
#include <sys/debug.h>
#include <unistd.h>
int
main(int argc, const char *argv[])
{
int fd, ret;
struct statvfs vfs;
if (argc != 3) {
fprintf(stderr, "test failed: missing path or file\n");
return (1);
}
if ((fd = open(argv[1], O_RDONLY)) < 0) {
fprintf(stderr, "test failed: failed to open root %s: %s\n",
argv[1], strerror(errno));
return (1);
}
if (fstatvfs(fd, &vfs) != 0) {
fprintf(stderr, "test failed: failed to stat vfs for %s: %s\n",
argv[1], strerror(errno));
return (1);
}
if (strncmp("tmpfs", vfs.f_basetype, FSTYPSZ) != 0) {
fprintf(stderr, "test failed: asked to run on non-tmpfs\n");
return (1);
}
/*
* Once a few additional bugs in tmpfs are fixed, we should double check
* and make sure that the free space here is actually zero before
* continuing.
*/
/*
* Go through operations that would create nodes and make sure that they
* all fail.
*/
ret = openat(fd, "Mnemosyne", O_RDWR | O_CREAT, 0755);
VERIFY3S(ret, ==, -1);
VERIFY3S(errno, ==, ENOSPC);
ret = mkdirat(fd, "Euterpe", 0775);
VERIFY3S(ret, ==, -1);
VERIFY3S(errno, ==, ENOSPC);
ret = symlinkat("/dev/null", fd, "Melpomene");
VERIFY3S(ret, ==, -1);
VERIFY3S(errno, ==, ENOSPC);
ret = linkat(fd, argv[2], fd, "Urania", 0);
VERIFY3S(ret, ==, -1);
VERIFY3S(errno, ==, ENOSPC);
/*
* Make sure we can't create open extended attributes.
*/
ret = openat(fd, "Lethe", O_RDWR | O_CREAT | O_XATTR);
VERIFY3S(ret, ==, -1);
VERIFY3S(errno, ==, ENOSPC);
return (0);
}
|
