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
|
/* libguestfs - the guestfsd daemon
* Copyright (C) 2009 Red Hat Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY 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, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <config.h>
#ifdef HAVE_WINDOWS_H
#include <windows.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>
#ifdef HAVE_SYS_STATVFS_H
#include <sys/statvfs.h>
#endif
#include <fsusage.h>
#include "../src/guestfs_protocol.h"
#include "daemon.h"
#include "actions.h"
guestfs_int_statvfs *
do_statvfs (const char *path)
{
#ifdef HAVE_STATVFS
int r;
guestfs_int_statvfs *ret;
struct statvfs statbuf;
CHROOT_IN;
r = statvfs (path, &statbuf);
CHROOT_OUT;
if (r == -1) {
reply_with_perror ("statvfs");
return NULL;
}
ret = malloc (sizeof *ret);
if (ret == NULL) {
reply_with_perror ("malloc");
return NULL;
}
ret->bsize = statbuf.f_bsize;
ret->frsize = statbuf.f_frsize;
ret->blocks = statbuf.f_blocks;
ret->bfree = statbuf.f_bfree;
ret->bavail = statbuf.f_bavail;
ret->files = statbuf.f_files;
ret->ffree = statbuf.f_ffree;
ret->favail = statbuf.f_favail;
ret->fsid = statbuf.f_fsid;
ret->flag = statbuf.f_flag;
ret->namemax = statbuf.f_namemax;
return ret;
#else /* !HAVE_STATVFS */
# if WIN32
char *disk;
guestfs_int_statvfs *ret;
ULONGLONG free_bytes_available; /* for user - similar to bavail */
ULONGLONG total_number_of_bytes;
ULONGLONG total_number_of_free_bytes; /* for everyone - bfree */
disk = sysroot_path (path);
if (!disk) {
reply_with_perror ("malloc");
return NULL;
}
if (!GetDiskFreeSpaceEx (disk,
(PULARGE_INTEGER) &free_bytes_available,
(PULARGE_INTEGER) &total_number_of_bytes,
(PULARGE_INTEGER) &total_number_of_free_bytes)) {
reply_with_perror ("GetDiskFreeSpaceEx");
free (disk);
return NULL;
}
free (disk);
ret = malloc (sizeof *ret);
if (ret == NULL) {
reply_with_perror ("malloc");
return NULL;
}
/* XXX I couldn't determine how to get block size. MSDN has a
* unhelpful hard-coded list here:
* http://support.microsoft.com/kb/140365
* but this depends on the filesystem type, the size of the disk and
* the version of Windows. So this code assumes the disk is NTFS
* and the version of Windows is >= Win2K.
*/
if (total_number_of_bytes < 16ULL * 1024 * 1024 * 1024 * 1024)
ret->bsize = 4096;
else if (total_number_of_bytes < 32ULL * 1024 * 1024 * 1024 * 1024)
ret->bsize = 8192;
else if (total_number_of_bytes < 64ULL * 1024 * 1024 * 1024 * 1024)
ret->bsize = 16384;
else if (total_number_of_bytes < 128ULL * 1024 * 1024 * 1024 * 1024)
ret->bsize = 32768;
else
ret->bsize = 65536;
/* As with stat, -1 indicates a field is not known. */
ret->frsize = ret->bsize;
ret->blocks = total_number_of_bytes / ret->bsize;
ret->bfree = total_number_of_free_bytes / ret->bsize;
ret->bavail = free_bytes_available / ret->bsize;
ret->files = -1;
ret->ffree = -1;
ret->favail = -1;
ret->fsid = -1;
ret->flag = -1;
ret->namemax = FILENAME_MAX;
return ret;
# else /* !WIN32 */
char *disk;
int r;
guestfs_int_statvfs *ret;
struct fs_usage fsu;
disk = sysroot_path (path);
if (!disk) {
reply_with_perror ("malloc");
return NULL;
}
r = get_fs_usage (disk, disk, &fsu);
free (disk);
if (r == -1) {
reply_with_perror ("get_fs_usage: %s", path);
return NULL;
}
ret = malloc (sizeof *ret);
if (ret == NULL) {
reply_with_perror ("malloc");
return NULL;
}
/* As with stat, -1 indicates a field is not known. */
ret->bsize = fsu.f_bsize;
ret->frsize = -1;
ret->blocks = fsu.f_blocks;
ret->bfree = fsu.f_bfree;
ret->bavail = fsu.f_bavail;
ret->files = fsu.f_files;
ret->ffree = fsu.f_ffree;
ret->favail = -1;
ret->fsid = -1;
ret->flag = -1;
ret->namemax = -1;
return ret;
# endif /* !WIN32 */
#endif /* !HAVE_STATVFS */
}
|
