1 /* vi: set sw=4 ts=4: */
3 * Mini du implementation for busybox
6 * Copyright (C) 1999,2000,2001 by Lineo, inc.
7 * Written by John Beppu <beppu@lineo.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
25 #include <sys/types.h>
36 #ifdef BB_FEATURE_HUMAN_READABLE
37 static unsigned long disp_hr = KILOBYTE;
40 typedef void (Display) (long, char *);
42 static int du_depth = 0;
43 static int count_hardlinks = 0;
45 static Display *print;
47 static void print_normal(long size, char *filename)
50 #ifdef BB_FEATURE_HUMAN_READABLE
61 printf("%s\t%s\n", make_human_readable_str(size, base), filename);
63 printf("%ld\t%s\n", size, filename);
67 static void print_summary(long size, char *filename)
71 print_normal(size, filename);
75 /* tiny recursive du */
76 static long du(char *filename)
82 if ((lstat(filename, &statbuf)) != 0) {
83 perror_msg("%s", filename);
88 sum = (statbuf.st_blocks >> 1);
90 /* Don't add in stuff pointed to by symbolic links */
91 if (S_ISLNK(statbuf.st_mode)) {
96 if (S_ISDIR(statbuf.st_mode)) {
100 dir = opendir(filename);
106 len = strlen(filename);
107 if (filename[len - 1] == '/')
108 filename[--len] = '\0';
110 while ((entry = readdir(dir))) {
112 char *name = entry->d_name;
114 if ((strcmp(name, "..") == 0)
115 || (strcmp(name, ".") == 0)) {
118 newfile = concat_path_file(filename, name);
123 print(sum, filename);
125 else if (statbuf.st_nlink > 1 && !count_hardlinks) {
126 /* Add files with hard links only once */
127 if (is_in_ino_dev_hashtable(&statbuf, NULL)) {
130 print(sum, filename);
133 add_to_ino_dev_hashtable(&statbuf, NULL);
140 int du_main(int argc, char **argv)
142 int status = EXIT_SUCCESS;
146 /* default behaviour */
147 print = print_normal;
150 while ((c = getopt(argc, argv, "sl"
151 #ifdef BB_FEATURE_HUMAN_READABLE
157 print = print_summary;
162 #ifdef BB_FEATURE_HUMAN_READABLE
163 case 'h': disp_hr = 0; break;
164 case 'm': disp_hr = MEGABYTE; break;
172 /* go through remaining args (if any) */
173 if (optind >= argc) {
175 status = EXIT_FAILURE;
179 for (i=optind; i < argc; i++) {
180 if ((sum = du(argv[i])) == 0)
181 status = EXIT_FAILURE;
182 if(is_directory(argv[i], FALSE, NULL)==FALSE) {
183 print_normal(sum, argv[i]);
185 reset_ino_dev_hashtable();
192 /* $Id: du.c,v 1.45 2001/04/25 05:39:18 andersen Exp $ */
195 c-file-style: "linux"