* Copyright (C) 1999,2000,2001 by John Beppu <beppu@codepoet.org>
* Copyright (C) 2002 Edward Betts <edward@debian.org>
*
- * 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
- *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
/* BB_AUDIT SUSv3 compliant (unless default blocksize set to 1k) */
* 4) Fixed busybox bug #1284 involving long overflow with human_readable.
*/
-#include <stdlib.h>
-#include <limits.h>
-#include <unistd.h>
-#include <dirent.h>
-#include <sys/stat.h>
#include "busybox.h"
-#ifdef CONFIG_FEATURE_HUMAN_READABLE
-# ifdef CONFIG_FEATURE_DU_DEFALT_BLOCKSIZE_1K
-static unsigned long disp_hr = KILOBYTE;
+#if ENABLE_FEATURE_HUMAN_READABLE
+# if ENABLE_FEATURE_DU_DEFAULT_BLOCKSIZE_1K
+static unsigned long disp_hr = 1024;
# else
static unsigned long disp_hr = 512;
# endif
-#elif defined CONFIG_FEATURE_DU_DEFALT_BLOCKSIZE_1K
-static unsigned int disp_k = 1;
+#elif ENABLE_FEATURE_DU_DEFAULT_BLOCKSIZE_1K
+static unsigned disp_k = 1;
#else
-static unsigned int disp_k; /* bss inits to 0 */
+static unsigned disp_k; /* bss inits to 0 */
#endif
static int max_print_depth = INT_MAX;
-static int count_hardlinks = INT_MAX;
+static nlink_t count_hardlinks = 1;
-static int status
-#if EXIT_SUCCESS == 0
- = EXIT_SUCCESS
-#endif
- ;
+static int status;
static int print_files;
static int slink_depth;
static int du_depth;
static dev_t dir_dev;
-static void print(long size, char *filename)
+static void print(long size, const char * const filename)
{
/* TODO - May not want to defer error checking here. */
-#ifdef CONFIG_FEATURE_HUMAN_READABLE
- bb_printf("%s\t%s\n", make_human_readable_str(size, 512, disp_hr),
- filename);
+#if ENABLE_FEATURE_HUMAN_READABLE
+ printf("%s\t%s\n", make_human_readable_str(size, 512, disp_hr),
+ filename);
#else
- bb_printf("%ld\t%s\n", size >> disp_k, filename);
+ if (disp_k) {
+ size++;
+ size >>= 1;
+ }
+ printf("%ld\t%s\n", size, filename);
#endif
}
/* tiny recursive du */
-static long du(char *filename)
+static long du(const char * const filename)
{
struct stat statbuf;
long sum;
- if ((lstat(filename, &statbuf)) != 0) {
+ if (lstat(filename, &statbuf) != 0) {
bb_perror_msg("%s", filename);
status = EXIT_FAILURE;
return 0;
if (S_ISLNK(statbuf.st_mode)) {
if (slink_depth > du_depth) { /* -H or -L */
- if ((stat(filename, &statbuf)) != 0) {
+ if (stat(filename, &statbuf) != 0) {
bb_perror_msg("%s", filename);
status = EXIT_FAILURE;
return 0;
struct dirent *entry;
char *newfile;
- dir = opendir(filename);
+ dir = warn_opendir(filename);
if (!dir) {
- bb_perror_msg("%s", filename);
status = EXIT_FAILURE;
return sum;
}
char *name = entry->d_name;
newfile = concat_subpath_file(filename, name);
- if(newfile == NULL)
+ if (newfile == NULL)
continue;
++du_depth;
sum += du(newfile);
{
long total;
int slink_depth_save;
- int print_final_total = 0;
- int c;
+ int print_final_total;
+ char *smax_print_depth;
+ unsigned opt;
-#ifdef CONFIG_FEATURE_DU_DEFALT_BLOCKSIZE_1K
+#if ENABLE_FEATURE_DU_DEFAULT_BLOCKSIZE_1K
if (getenv("POSIXLY_CORRECT")) { /* TODO - a new libbb function? */
-#ifdef CONFIG_FEATURE_HUMAN_READABLE
+#if ENABLE_FEATURE_HUMAN_READABLE
disp_hr = 512;
#else
disp_k = 0;
#endif
- }
+ }
#endif
- /* Note: SUSv3 specifies that -a and -s options can not be used together
+ /* Note: SUSv3 specifies that -a and -s options cannot be used together
* in strictly conforming applications. However, it also says that some
* du implementations may produce output when -a and -s are used together.
* gnu du exits with an error code in this case. We choose to simply
* ignore -a. This is consistent with -s being equivalent to -d 0.
*/
-
- while ((c = getopt(argc, argv, "aHkLsx" "d:" "lc"
-#ifdef CONFIG_FEATURE_HUMAN_READABLE
- "hm"
-#endif
- )) > 0) {
- switch (c) {
- case 'a':
- print_files = INT_MAX;
- break;
- case 'H':
- slink_depth = 1;
- break;
- case 'k':
-#ifdef CONFIG_FEATURE_HUMAN_READABLE
- disp_hr = KILOBYTE;
-#elif !defined CONFIG_FEATURE_DU_DEFALT_BLOCKSIZE_1K
- disp_k = 1;
+#if ENABLE_FEATURE_HUMAN_READABLE
+ opt_complementary = "h-km:k-hm:m-hk:H-L:L-H:s-d:d-s";
+ opt = getopt32(argc, argv, "aHkLsx" "d:" "lc" "hm", &smax_print_depth);
+ if (opt & (1 << 9)) {
+ /* -h opt */
+ disp_hr = 0;
+ }
+ if (opt & (1 << 10)) {
+ /* -m opt */
+ disp_hr = 1024*1024;
+ }
+ if (opt & (1 << 2)) {
+ /* -k opt */
+ disp_hr = 1024;
+ }
+#else
+ opt_complementary = "H-L:L-H:s-d:d-s";
+ opt = getopt32(argc, argv, "aHkLsx" "d:" "lc", &smax_print_depth);
+#if !ENABLE_FEATURE_DU_DEFAULT_BLOCKSIZE_1K
+ if (opt & (1 << 2)) {
+ /* -k opt */
+ disp_k = 1;
+ }
#endif
- break;
- case 'L':
- slink_depth = INT_MAX;
- break;
- case 's':
- max_print_depth = 0;
- break;
- case 'x':
- one_file_system = 1;
- break;
-
- case 'd':
- max_print_depth = bb_xgetularg10_bnd(optarg, 0, INT_MAX);
- break;
- case 'l':
- count_hardlinks = 1;
- break;
- case 'c':
- print_final_total = 1;
- break;
-#ifdef CONFIG_FEATURE_HUMAN_READABLE
- case 'h':
- disp_hr = 0;
- break;
- case 'm':
- disp_hr = MEGABYTE;
- break;
#endif
- default:
- bb_show_usage();
- }
+ if (opt & (1 << 0)) {
+ /* -a opt */
+ print_files = INT_MAX;
+ }
+ if (opt & (1 << 1)) {
+ /* -H opt */
+ slink_depth = 1;
}
+ if (opt & (1 << 3)) {
+ /* -L opt */
+ slink_depth = INT_MAX;
+ }
+ if (opt & (1 << 4)) {
+ /* -s opt */
+ max_print_depth = 0;
+ }
+ one_file_system = opt & (1 << 5); /* -x opt */
+ if (opt & (1 << 6)) {
+ /* -d opt */
+ max_print_depth = xatoi_u(smax_print_depth);
+ }
+ if (opt & (1 << 7)) {
+ /* -l opt */
+ count_hardlinks = MAXINT(nlink_t);
+ }
+ print_final_total = opt & (1 << 8); /* -c opt */
/* go through remaining args (if any) */
argv += optind;
total += du(*argv);
slink_depth = slink_depth_save;
} while (*++argv);
+#if ENABLE_FEATURE_CLEAN_UP
reset_ino_dev_hashtable();
+#endif
if (print_final_total) {
print(total, "total");
}
- bb_fflush_stdout_and_exit(status);
+ fflush_stdout_and_exit(status);
}
projects / oweals / busybox.git / blobdiff