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
|
/* vi: set sw=4 ts=4: */
/*
* Mini df implementation for busybox
*
* Copyright (C) 1999,2000,2001 by Lineo, inc.
* Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
* based on original code by (I think) Bruce Perens <bruce@pixar.com>.
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <mntent.h>
#include <sys/vfs.h>
#include <getopt.h>
#include "busybox.h"
extern const char mtab_file[]; /* Defined in utility.c */
#ifdef BB_FEATURE_HUMAN_READABLE
unsigned long disp_hr = KILOBYTE;
#endif
static int df(char *device, const char *mountPoint)
{
struct statfs s;
long blocks_used;
long blocks_percent_used;
if (statfs(mountPoint, &s) != 0) {
perror_msg("%s", mountPoint);
return FALSE;
}
if (s.f_blocks > 0) {
blocks_used = s.f_blocks - s.f_bfree;
if(blocks_used == 0)
blocks_percent_used = 0;
else {
blocks_percent_used = (long)
(blocks_used * 100.0 / (blocks_used + s.f_bavail) + 0.5);
}
if (strcmp(device, "/dev/root") == 0) {
/* Adjusts device to be the real root device,
* or leaves device alone if it can't find it */
find_real_root_device_name( device);
}
#ifdef BB_FEATURE_HUMAN_READABLE
printf("%-20s %9s %9s %9s %3ld%% %s\n",
device,
format((s.f_blocks * s.f_bsize), disp_hr),
format((s.f_blocks - s.f_bfree) * s.f_bsize, disp_hr),
format(s.f_bavail * s.f_bsize, disp_hr),
blocks_percent_used, mountPoint);
#else
printf("%-20s %9ld %9ld %9ld %3ld%% %s\n",
device,
(long) (s.f_blocks * s.f_bsize) / KILOBYTE,
(long) ((s.f_blocks - s.f_bfree) * s.f_bsize) / KILOBYTE,
(long) (s.f_bavail * s.f_bsize) / KILOBYTE,
blocks_percent_used, mountPoint);
#endif
}
return TRUE;
}
extern int df_main(int argc, char **argv)
{
int status = EXIT_SUCCESS;
int opt = 0;
int i = 0;
while ((opt = getopt(argc, argv,
#ifdef BB_FEATURE_HUMAN_READABLE
"hm"
#endif
"k"
)) > 0)
{
switch (opt) {
#ifdef BB_FEATURE_HUMAN_READABLE
case 'h': disp_hr = 0; break;
case 'm': disp_hr = MEGABYTE; break;
#endif
case 'k': break;
default:
show_usage();
}
}
printf("%-20s %-14s %s %s %s %s\n", "Filesystem",
#ifdef BB_FEATURE_HUMAN_READABLE
(KILOBYTE == disp_hr) ? "1k-blocks" : " Size",
#else
"1k-blocks",
#endif
"Used", "Available", "Use%", "Mounted on");
if(optind < argc) {
struct mntent *mountEntry;
for(i = optind; i < argc; i++)
{
if ((mountEntry = find_mount_point(argv[i], mtab_file)) == 0) {
error_msg("%s: can't find mount point.", argv[i]);
status = EXIT_FAILURE;
} else if (!df(mountEntry->mnt_fsname, mountEntry->mnt_dir))
status = EXIT_FAILURE;
}
} else {
FILE *mountTable;
struct mntent *mountEntry;
mountTable = setmntent(mtab_file, "r");
if (mountTable == 0) {
perror_msg("%s", mtab_file);
return EXIT_FAILURE;
}
while ((mountEntry = getmntent(mountTable))) {
if (!df(mountEntry->mnt_fsname, mountEntry->mnt_dir))
status = EXIT_FAILURE;
}
endmntent(mountTable);
}
return status;
}
/*
Local Variables:
c-file-style: "linux"
c-basic-offset: 4
tab-width: 4
End:
*/
|
