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Major coreutils update.

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This commit is contained in:
Manuel Novoa III
2003-03-19 09:13:01 +00:00
parent e01f9662a5
commit cad5364599
295 changed files with 6944 additions and 5570 deletions
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233
coreutils/du.c
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@@ -22,45 +22,65 @@
*
*/
#include <sys/types.h>
#include <fcntl.h>
#include <dirent.h>
#include <stdio.h>
/* BB_AUDIT SUSv3 compliant (unless default blocksize set to 1k) */
/* http://www.opengroup.org/onlinepubs/007904975/utilities/du.html */
/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
*
* Mostly rewritten for SUSv3 compliance and to fix bugs/defects.
* 1) Added support for SUSv3 -a, -H, -L, gnu -c, and (busybox) -d options.
* The -d option allows setting of max depth (similar to gnu --max-depth).
* 2) Fixed incorrect size calculations for links and directories, especially
* when errors occurred. Calculates sizes should now match gnu du output.
* 3) Added error checking of output.
* 4) Fixed busybox bug #1284 involving long overflow with human_readable.
*/
#include <stdlib.h>
#include <getopt.h>
#include <string.h>
#include <errno.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;
# else
static unsigned long disp_hr = 512;
# endif
#elif defined CONFIG_FEATURE_DU_DEFALT_BLOCKSIZE_1K
static unsigned int disp_k = 1;
#else
static unsigned int disp_k; /* bss inits to 0 */
#endif
static int du_depth /*= 0*/;
static int count_hardlinks /*= 0*/;
static int one_file_system /*= 0*/;
static int max_print_depth = INT_MAX;
static int count_hardlinks = INT_MAX;
static int status
#if EXIT_SUCCESS == 0
= EXIT_SUCCESS
#endif
;
static int print_files;
static int slink_depth;
static int du_depth;
static int one_file_system;
static dev_t dir_dev;
static void (*print) (long, char *);
static void print_normal(long size, char *filename)
static void print(long size, char *filename)
{
/* TODO - May not want to defer error checking here. */
#ifdef CONFIG_FEATURE_HUMAN_READABLE
printf("%s\t%s\n", make_human_readable_str(size << 10, 1, disp_hr),
bb_printf("%s\t%s\n", make_human_readable_str(size, 512, disp_hr),
filename);
#else
printf("%ld\t%s\n", size, filename);
bb_printf("%ld\t%s\n", size >> disp_k, filename);
#endif
}
static void print_summary(long size, char *filename)
{
if (du_depth == 1) {
print_normal(size, filename);
}
}
/* tiny recursive du */
static long du(char *filename)
{
@@ -68,23 +88,43 @@ static long du(char *filename)
long sum;
if ((lstat(filename, &statbuf)) != 0) {
perror_msg("%s", filename);
bb_perror_msg("%s", filename);
status = EXIT_FAILURE;
return 0;
}
if (du_depth == 0)
dir_dev = statbuf.st_dev;
else if (one_file_system && dir_dev != statbuf.st_dev)
return 0;
du_depth++;
sum = (statbuf.st_blocks >> 1);
/* Don't add in stuff pointed to by symbolic links */
if (S_ISLNK(statbuf.st_mode)) {
sum = 0L;
if (du_depth == 1) {
if (one_file_system) {
if (du_depth == 0) {
dir_dev = statbuf.st_dev;
} else if (dir_dev != statbuf.st_dev) {
return 0;
}
}
sum = statbuf.st_blocks;
if (S_ISLNK(statbuf.st_mode)) {
if (slink_depth > du_depth) { /* -H or -L */
if ((stat(filename, &statbuf)) != 0) {
bb_perror_msg("%s", filename);
status = EXIT_FAILURE;
return 0;
}
sum = statbuf.st_blocks;
if (slink_depth == 1) {
slink_depth = INT_MAX; /* Convert -H to -L. */
}
}
}
if (statbuf.st_nlink > count_hardlinks) {
/* Add files/directories with links only once */
if (is_in_ino_dev_hashtable(&statbuf, NULL)) {
return 0;
}
add_to_ino_dev_hashtable(&statbuf, NULL);
}
if (S_ISDIR(statbuf.st_mode)) {
DIR *dir;
struct dirent *entry;
@@ -92,8 +132,9 @@ static long du(char *filename)
dir = opendir(filename);
if (!dir) {
du_depth--;
return 0;
bb_perror_msg("%s", filename);
status = EXIT_FAILURE;
return sum;
}
newfile = last_char_is(filename, '/');
@@ -103,54 +144,86 @@ static long du(char *filename)
while ((entry = readdir(dir))) {
char *name = entry->d_name;
if ((strcmp(name, "..") == 0)
|| (strcmp(name, ".") == 0)) {
if ((name[0] == '.') && (!name[1] || (name[1] == '.' && !name[2]))) {
continue;
}
newfile = concat_path_file(filename, name);
++du_depth;
sum += du(newfile);
--du_depth;
free(newfile);
}
closedir(dir);
print(sum, filename);
} else if (statbuf.st_nlink > 1 && !count_hardlinks) {
/* Add files with hard links only once */
if (is_in_ino_dev_hashtable(&statbuf, NULL)) {
sum = 0L;
if (du_depth == 1)
print(sum, filename);
} else {
add_to_ino_dev_hashtable(&statbuf, NULL);
}
} else if (du_depth > print_files) {
return sum;
}
if (du_depth <= max_print_depth) {
print(sum, filename);
}
du_depth--;
return sum;
}
int du_main(int argc, char **argv)
{
int status = EXIT_SUCCESS;
int i;
long total;
int slink_depth_save;
int print_final_total = 0;
int c;
/* default behaviour */
print = print_normal;
#ifdef CONFIG_FEATURE_DU_DEFALT_BLOCKSIZE_1K
if (getenv("POSIXLY_CORRECT")) { /* TODO - a new libbb function? */
#ifdef CONFIG_FEATURE_HUMAN_READABLE
disp_hr = 512;
#else
disp_k = 0;
#endif
}
#endif
/* parse argv[] */
while ((c = getopt(argc, argv, "slx"
/* Note: SUSv3 specifies that -a and -s options can not 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
"k")) != EOF) {
)) > 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;
#endif
break;
case 'L':
slink_depth = INT_MAX;
break;
case 's':
print = print_summary;
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 'x':
one_file_system = 1;
case 'c':
print_final_total = 1;
break;
#ifdef CONFIG_FEATURE_HUMAN_READABLE
case 'h':
@@ -160,37 +233,31 @@ int du_main(int argc, char **argv)
disp_hr = MEGABYTE;
break;
#endif
case 'k':
break;
default:
show_usage();
bb_show_usage();
}
}
/* go through remaining args (if any) */
argv += optind;
if (optind >= argc) {
if (du(".") == 0)
status = EXIT_FAILURE;
} else {
long sum;
for (i = optind; i < argc; i++) {
sum = du(argv[i]);
if (is_directory(argv[i], FALSE, NULL) == FALSE) {
print_normal(sum, argv[i]);
}
reset_ino_dev_hashtable();
*--argv = ".";
if (slink_depth == 1) {
slink_depth = 0;
}
}
return status;
}
slink_depth_save = slink_depth;
total = 0;
do {
total += du(*argv);
slink_depth = slink_depth_save;
} while (*++argv);
reset_ino_dev_hashtable();
/* $Id: du.c,v 1.55 2002/08/23 07:28:45 aaronl Exp $ */
/*
Local Variables:
c-file-style: "linux"
c-basic-offset: 4
tab-width: 4
End:
*/
if (print_final_total) {
print(total, "total");
}
bb_fflush_stdout_and_exit(status);
}