Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1 | /* vi: set sw=4 ts=4: */ |
John Beppu | 0f5e1ab | 1999-12-09 18:23:54 +0000 | [diff] [blame] | 2 | /* |
| 3 | * Mini du implementation for busybox |
| 4 | * |
| 5 | * |
Eric Andersen | 8ec10a9 | 2001-01-27 09:33:39 +0000 | [diff] [blame] | 6 | * Copyright (C) 1999,2000,2001 by Lineo, inc. |
Eric Andersen | 70e2f0b | 1999-12-10 06:45:42 +0000 | [diff] [blame] | 7 | * Written by John Beppu <beppu@lineo.com> |
John Beppu | 0f5e1ab | 1999-12-09 18:23:54 +0000 | [diff] [blame] | 8 | * |
| 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. |
| 13 | * |
| 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. |
| 18 | * |
| 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 |
| 22 | * |
| 23 | */ |
| 24 | |
Eric Andersen | 3570a34 | 2000-09-25 21:45:58 +0000 | [diff] [blame] | 25 | #include "busybox.h" |
Erik Andersen | fac10d7 | 2000-02-07 05:29:42 +0000 | [diff] [blame] | 26 | #define BB_DECLARE_EXTERN |
| 27 | #define bb_need_name_too_long |
| 28 | #include "messages.c" |
| 29 | |
John Beppu | 0f5e1ab | 1999-12-09 18:23:54 +0000 | [diff] [blame] | 30 | #include <sys/types.h> |
| 31 | #include <fcntl.h> |
| 32 | #include <dirent.h> |
| 33 | #include <stdio.h> |
Eric Andersen | ed3ef50 | 2001-01-27 08:24:39 +0000 | [diff] [blame] | 34 | #include <stdlib.h> |
| 35 | #include <getopt.h> |
John Beppu | 9835541 | 1999-12-10 07:40:08 +0000 | [diff] [blame] | 36 | #include <errno.h> |
John Beppu | 0f5e1ab | 1999-12-09 18:23:54 +0000 | [diff] [blame] | 37 | |
Richard June | 6d0921c | 2001-01-22 22:35:38 +0000 | [diff] [blame] | 38 | #ifdef BB_FEATURE_HUMAN_READABLE |
| 39 | unsigned long du_disp_hr = KILOBYTE; |
| 40 | #endif |
| 41 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 42 | typedef void (Display) (long, char *); |
John Beppu | 0f5e1ab | 1999-12-09 18:23:54 +0000 | [diff] [blame] | 43 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 44 | static int du_depth = 0; |
Erik Andersen | 27fdd08 | 2000-02-19 18:16:49 +0000 | [diff] [blame] | 45 | static int count_hardlinks = 0; |
John Beppu | e1618e4 | 1999-12-15 18:52:17 +0000 | [diff] [blame] | 46 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 47 | static Display *print; |
| 48 | |
| 49 | static void print_normal(long size, char *filename) |
John Beppu | 0f5e1ab | 1999-12-09 18:23:54 +0000 | [diff] [blame] | 50 | { |
Richard June | 6d0921c | 2001-01-22 22:35:38 +0000 | [diff] [blame] | 51 | #ifdef BB_FEATURE_HUMAN_READABLE |
| 52 | printf("%s\t%s\n", format((size * KILOBYTE), du_disp_hr), filename); |
| 53 | #else |
Matt Kraai | 12f417e | 2001-01-18 02:57:08 +0000 | [diff] [blame] | 54 | printf("%ld\t%s\n", size, filename); |
Richard June | 6d0921c | 2001-01-22 22:35:38 +0000 | [diff] [blame] | 55 | #endif |
John Beppu | 0f5e1ab | 1999-12-09 18:23:54 +0000 | [diff] [blame] | 56 | } |
| 57 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 58 | static void print_summary(long size, char *filename) |
John Beppu | e1618e4 | 1999-12-15 18:52:17 +0000 | [diff] [blame] | 59 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 60 | if (du_depth == 1) { |
Richard June | 6d0921c | 2001-01-22 22:35:38 +0000 | [diff] [blame] | 61 | printf("summary\n"); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 62 | print_normal(size, filename); |
| 63 | } |
John Beppu | e1618e4 | 1999-12-15 18:52:17 +0000 | [diff] [blame] | 64 | } |
| 65 | |
John Beppu | 0f5e1ab | 1999-12-09 18:23:54 +0000 | [diff] [blame] | 66 | /* tiny recursive du */ |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 67 | static long du(char *filename) |
John Beppu | 0f5e1ab | 1999-12-09 18:23:54 +0000 | [diff] [blame] | 68 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 69 | struct stat statbuf; |
Erik Andersen | fac10d7 | 2000-02-07 05:29:42 +0000 | [diff] [blame] | 70 | long sum; |
Erik Andersen | 42387e4 | 2000-02-21 17:27:17 +0000 | [diff] [blame] | 71 | int len; |
John Beppu | 14c82b6 | 1999-12-10 06:15:27 +0000 | [diff] [blame] | 72 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 73 | if ((lstat(filename, &statbuf)) != 0) { |
Eric Andersen | b12e506 | 2000-12-12 23:17:26 +0000 | [diff] [blame] | 74 | perror_msg_and_die("%s", filename); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 75 | } |
| 76 | |
| 77 | du_depth++; |
John Beppu | 08c965a | 2000-02-13 04:10:57 +0000 | [diff] [blame] | 78 | sum = (statbuf.st_blocks >> 1); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 79 | |
Erik Andersen | 27fdd08 | 2000-02-19 18:16:49 +0000 | [diff] [blame] | 80 | /* Don't add in stuff pointed to by symbolic links */ |
Erik Andersen | 9ffdaa6 | 2000-02-11 21:55:04 +0000 | [diff] [blame] | 81 | if (S_ISLNK(statbuf.st_mode)) { |
Erik Andersen | 42387e4 | 2000-02-21 17:27:17 +0000 | [diff] [blame] | 82 | sum = 0L; |
| 83 | if (du_depth == 1) |
| 84 | print(sum, filename); |
Erik Andersen | 9ffdaa6 | 2000-02-11 21:55:04 +0000 | [diff] [blame] | 85 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 86 | if (S_ISDIR(statbuf.st_mode)) { |
| 87 | DIR *dir; |
| 88 | struct dirent *entry; |
| 89 | |
| 90 | dir = opendir(filename); |
| 91 | if (!dir) { |
Erik Andersen | 42387e4 | 2000-02-21 17:27:17 +0000 | [diff] [blame] | 92 | du_depth--; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 93 | return 0; |
| 94 | } |
Erik Andersen | 42387e4 | 2000-02-21 17:27:17 +0000 | [diff] [blame] | 95 | |
| 96 | len = strlen(filename); |
| 97 | if (filename[len - 1] == '/') |
| 98 | filename[--len] = '\0'; |
| 99 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 100 | while ((entry = readdir(dir))) { |
Erik Andersen | 4f3f757 | 2000-04-28 00:18:56 +0000 | [diff] [blame] | 101 | char newfile[BUFSIZ + 1]; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 102 | char *name = entry->d_name; |
| 103 | |
| 104 | if ((strcmp(name, "..") == 0) |
| 105 | || (strcmp(name, ".") == 0)) { |
| 106 | continue; |
| 107 | } |
| 108 | |
Erik Andersen | 4f3f757 | 2000-04-28 00:18:56 +0000 | [diff] [blame] | 109 | if (len + strlen(name) + 1 > BUFSIZ) { |
Mark Whitley | f57c944 | 2000-12-07 19:56:48 +0000 | [diff] [blame] | 110 | error_msg(name_too_long); |
Erik Andersen | 42387e4 | 2000-02-21 17:27:17 +0000 | [diff] [blame] | 111 | du_depth--; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 112 | return 0; |
| 113 | } |
| 114 | sprintf(newfile, "%s/%s", filename, name); |
| 115 | |
| 116 | sum += du(newfile); |
| 117 | } |
| 118 | closedir(dir); |
| 119 | print(sum, filename); |
| 120 | } |
Erik Andersen | 27fdd08 | 2000-02-19 18:16:49 +0000 | [diff] [blame] | 121 | else if (statbuf.st_nlink > 1 && !count_hardlinks) { |
| 122 | /* Add files with hard links only once */ |
Erik Andersen | 029011b | 2000-03-04 21:19:32 +0000 | [diff] [blame] | 123 | if (is_in_ino_dev_hashtable(&statbuf, NULL)) { |
Erik Andersen | 42387e4 | 2000-02-21 17:27:17 +0000 | [diff] [blame] | 124 | sum = 0L; |
| 125 | if (du_depth == 1) |
| 126 | print(sum, filename); |
| 127 | } |
| 128 | else { |
Erik Andersen | 029011b | 2000-03-04 21:19:32 +0000 | [diff] [blame] | 129 | add_to_ino_dev_hashtable(&statbuf, NULL); |
Erik Andersen | 42387e4 | 2000-02-21 17:27:17 +0000 | [diff] [blame] | 130 | } |
Erik Andersen | 27fdd08 | 2000-02-19 18:16:49 +0000 | [diff] [blame] | 131 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 132 | du_depth--; |
| 133 | return sum; |
John Beppu | 0f5e1ab | 1999-12-09 18:23:54 +0000 | [diff] [blame] | 134 | } |
| 135 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 136 | int du_main(int argc, char **argv) |
| 137 | { |
Matt Kraai | 92ed8a3 | 2000-12-06 15:55:23 +0000 | [diff] [blame] | 138 | int status = EXIT_SUCCESS; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 139 | int i; |
Pavel Roskin | 47d4926 | 2000-07-17 16:17:19 +0000 | [diff] [blame] | 140 | int c; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 141 | |
| 142 | /* default behaviour */ |
| 143 | print = print_normal; |
| 144 | |
| 145 | /* parse argv[] */ |
Richard June | 6d0921c | 2001-01-22 22:35:38 +0000 | [diff] [blame] | 146 | while ((c = getopt(argc, argv, "sl" |
| 147 | #ifdef BB_FEATURE_HUMAN_READABLE |
| 148 | "hm" |
| 149 | #endif |
| 150 | "k")) != EOF) { |
Eric Andersen | 17ad45a | 2000-07-14 18:38:26 +0000 | [diff] [blame] | 151 | switch (c) { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 152 | case 's': |
Eric Andersen | 17ad45a | 2000-07-14 18:38:26 +0000 | [diff] [blame] | 153 | print = print_summary; |
| 154 | break; |
Erik Andersen | 27fdd08 | 2000-02-19 18:16:49 +0000 | [diff] [blame] | 155 | case 'l': |
Eric Andersen | 17ad45a | 2000-07-14 18:38:26 +0000 | [diff] [blame] | 156 | count_hardlinks = 1; |
| 157 | break; |
Richard June | 6d0921c | 2001-01-22 22:35:38 +0000 | [diff] [blame] | 158 | #ifdef BB_FEATURE_HUMAN_READABLE |
| 159 | case 'h': du_disp_hr = 0; break; |
| 160 | case 'm': du_disp_hr = MEGABYTE; break; |
| 161 | case 'k': du_disp_hr = KILOBYTE; break; |
| 162 | #else |
| 163 | case 'k': break; |
| 164 | #endif |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 165 | default: |
Eric Andersen | 17ad45a | 2000-07-14 18:38:26 +0000 | [diff] [blame] | 166 | usage(du_usage); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 167 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 168 | } |
| 169 | |
| 170 | /* go through remaining args (if any) */ |
Eric Andersen | 17ad45a | 2000-07-14 18:38:26 +0000 | [diff] [blame] | 171 | if (optind >= argc) { |
Matt Kraai | 92ed8a3 | 2000-12-06 15:55:23 +0000 | [diff] [blame] | 172 | if (du(".") == 0) |
| 173 | status = EXIT_FAILURE; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 174 | } else { |
| 175 | long sum; |
| 176 | |
Eric Andersen | 17ad45a | 2000-07-14 18:38:26 +0000 | [diff] [blame] | 177 | for (i=optind; i < argc; i++) { |
Matt Kraai | e884970 | 2000-12-06 15:56:31 +0000 | [diff] [blame] | 178 | if ((sum = du(argv[i])) == 0) |
Matt Kraai | 92ed8a3 | 2000-12-06 15:55:23 +0000 | [diff] [blame] | 179 | status = EXIT_FAILURE; |
Richard June | 6d0921c | 2001-01-22 22:35:38 +0000 | [diff] [blame] | 180 | if(is_directory(argv[i], FALSE, NULL)==FALSE) { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 181 | print_normal(sum, argv[i]); |
| 182 | } |
Erik Andersen | 029011b | 2000-03-04 21:19:32 +0000 | [diff] [blame] | 183 | reset_ino_dev_hashtable(); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 184 | } |
| 185 | } |
| 186 | |
Matt Kraai | 92ed8a3 | 2000-12-06 15:55:23 +0000 | [diff] [blame] | 187 | return status; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 188 | } |
| 189 | |
Eric Andersen | 8ec10a9 | 2001-01-27 09:33:39 +0000 | [diff] [blame] | 190 | /* $Id: du.c,v 1.36 2001/01/27 09:33:38 andersen Exp $ */ |
Erik Andersen | 029011b | 2000-03-04 21:19:32 +0000 | [diff] [blame] | 191 | /* |
| 192 | Local Variables: |
| 193 | c-file-style: "linux" |
| 194 | c-basic-offset: 4 |
| 195 | tab-width: 4 |
| 196 | End: |
| 197 | */ |