1 /* vi: set sw=4 ts=4: */
3 * Mini df implementation for busybox
5 * Copyright (C) 1999,2000 by Lineo, inc.
6 * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
7 * based on original code by (I think) Bruce Perens <bruce@pixar.com>.
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30 extern const char mtab_file[]; /* Defined in utility.c */
32 static int df(char *device, const char *mountPoint)
36 long blocks_percent_used;
38 if (statfs(mountPoint, &s) != 0) {
39 perror_msg("%s", mountPoint);
44 blocks_used = s.f_blocks - s.f_bfree;
45 blocks_percent_used = (long)
46 (blocks_used * 100.0 / (blocks_used + s.f_bavail) + 0.5);
47 if (strcmp(device, "/dev/root") == 0) {
48 /* Adjusts device to be the real root device,
49 * or leaves device alone if it can't find it */
50 find_real_root_device_name( device);
52 printf("%-20s %9ld %9ld %9ld %3ld%% %s\n",
54 (long) (s.f_blocks * (s.f_bsize / 1024.0)),
55 (long) ((s.f_blocks - s.f_bfree) * (s.f_bsize / 1024.0)),
56 (long) (s.f_bavail * (s.f_bsize / 1024.0)),
57 blocks_percent_used, mountPoint);
64 extern int df_main(int argc, char **argv)
66 int status = EXIT_SUCCESS;
68 printf("%-20s %-14s %s %s %s %s\n", "Filesystem",
69 "1k-blocks", "Used", "Available", "Use%", "Mounted on");
72 struct mntent *mountEntry;
74 if (**(argv + 1) == '-') {
78 if ((mountEntry = find_mount_point(argv[1], mtab_file)) == 0) {
79 error_msg("%s: can't find mount point.\n", argv[1]);
80 status = EXIT_FAILURE;
81 } else if (!df(mountEntry->mnt_fsname, mountEntry->mnt_dir))
82 status = EXIT_FAILURE;
88 struct mntent *mountEntry;
90 mountTable = setmntent(mtab_file, "r");
91 if (mountTable == 0) {
92 perror_msg("%s", mtab_file);
96 while ((mountEntry = getmntent(mountTable))) {
97 if (!df(mountEntry->mnt_fsname, mountEntry->mnt_dir))
98 status = EXIT_FAILURE;
100 endmntent(mountTable);
108 c-file-style: "linux"