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authorGravatar Denis Vlasenko <vda.linux@googlemail.com>2008-11-11 21:15:56 +0000
committerGravatar Denis Vlasenko <vda.linux@googlemail.com>2008-11-11 21:15:56 +0000
commit618a3027edbfd42e52bfd7680cd24affe7a29b4c (patch)
tree5493504ca370c90464e3b6550d11b6d51c05c4fc /coreutils
parent3b35fbb6323adadf7108e1d32fc4d93b4d89e9c4 (diff)
downloadbusybox-618a3027edbfd42e52bfd7680cd24affe7a29b4c.tar.gz
busybox-618a3027edbfd42e52bfd7680cd24affe7a29b4c.tar.bz2
du: fix "du /dir /dir" case
reset_ino_dev_hashtable - 84 +84 du 388 376 -12 du_main 327 301 -26 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/2 up/down: 84/-38) Total: 46 bytes
Diffstat (limited to 'coreutils')
-rw-r--r--coreutils/du.c82
1 files changed, 35 insertions, 47 deletions
diff --git a/coreutils/du.c b/coreutils/du.c
index efc9bb9fa..16c773243 100644
--- a/coreutils/du.c
+++ b/coreutils/du.c
@@ -25,19 +25,28 @@
#include "libbb.h"
+enum {
+ OPT_a_files_too = (1 << 0),
+ OPT_H_follow_links = (1 << 1),
+ OPT_k_kbytes = (1 << 2),
+ OPT_L_follow_links = (1 << 3),
+ OPT_s_total_norecurse = (1 << 4),
+ OPT_x_one_FS = (1 << 5),
+ OPT_d_maxdepth = (1 << 6),
+ OPT_l_hardlinks = (1 << 7),
+ OPT_c_total = (1 << 8),
+ OPT_h_for_humans = (1 << 9),
+ OPT_m_mbytes = (1 << 10),
+};
+
struct globals {
#if ENABLE_FEATURE_HUMAN_READABLE
unsigned long disp_hr;
#else
unsigned disp_k;
#endif
-
int max_print_depth;
- nlink_t count_hardlinks;
-
bool status;
- bool one_file_system;
- int print_files;
int slink_depth;
int du_depth;
dev_t dir_dev;
@@ -72,7 +81,7 @@ static unsigned long du(const char *filename)
return 0;
}
- if (G.one_file_system) {
+ if (option_mask32 & OPT_x_one_FS) {
if (G.du_depth == 0) {
G.dir_dev = statbuf.st_dev;
} else if (G.dir_dev != statbuf.st_dev) {
@@ -83,7 +92,7 @@ static unsigned long du(const char *filename)
sum = statbuf.st_blocks;
if (S_ISLNK(statbuf.st_mode)) {
- if (G.slink_depth > G.du_depth) { /* -H or -L */
+ if (G.slink_depth > G.du_depth) { /* -H or -L */
if (stat(filename, &statbuf) != 0) {
bb_simple_perror_msg(filename);
G.status = EXIT_FAILURE;
@@ -91,12 +100,15 @@ static unsigned long du(const char *filename)
}
sum = statbuf.st_blocks;
if (G.slink_depth == 1) {
- G.slink_depth = INT_MAX; /* Convert -H to -L. */
+ /* Convert -H to -L */
+ G.slink_depth = INT_MAX;
}
}
}
- if (statbuf.st_nlink > G.count_hardlinks) {
+ if (!(option_mask32 & OPT_l_hardlinks)
+ && statbuf.st_nlink > 1
+ ) {
/* Add files/directories with links only once */
if (is_in_ino_dev_hashtable(&statbuf)) {
return 0;
@@ -115,14 +127,8 @@ static unsigned long du(const char *filename)
return sum;
}
- newfile = last_char_is(filename, '/');
- if (newfile)
- *newfile = '\0';
-
while ((entry = readdir(dir))) {
- char *name = entry->d_name;
-
- newfile = concat_subpath_file(filename, name);
+ newfile = concat_subpath_file(filename, entry->d_name);
if (newfile == NULL)
continue;
++G.du_depth;
@@ -131,8 +137,9 @@ static unsigned long du(const char *filename)
free(newfile);
}
closedir(dir);
- } else if (G.du_depth > G.print_files) {
- return sum;
+ } else {
+ if (!(option_mask32 & OPT_a_files_too) && G.du_depth != 0)
+ return sum;
}
if (G.du_depth <= G.max_print_depth) {
print(sum, filename);
@@ -145,7 +152,6 @@ int du_main(int argc UNUSED_PARAM, char **argv)
{
unsigned long total;
int slink_depth_save;
- bool print_final_total;
unsigned opt;
#if ENABLE_FEATURE_HUMAN_READABLE
@@ -158,7 +164,6 @@ int du_main(int argc UNUSED_PARAM, char **argv)
/* SKIP_FEATURE_DU_DEFAULT_BLOCKSIZE_1K(G.disp_k = 0;) - G is pre-zeroed */
#endif
G.max_print_depth = INT_MAX;
- G.count_hardlinks = 1;
/* Note: SUSv3 specifies that -a and -s options cannot be used together
* in strictly conforming applications. However, it also says that some
@@ -170,16 +175,13 @@ int du_main(int argc UNUSED_PARAM, char **argv)
opt_complementary = "h-km:k-hm:m-hk:H-L:L-H:s-d:d-s:d+";
opt = getopt32(argv, "aHkLsx" "d:" "lc" "hm", &G.max_print_depth);
argv += optind;
- if (opt & (1 << 9)) {
- /* -h opt */
+ if (opt & OPT_h_for_humans) {
G.disp_hr = 0;
}
- if (opt & (1 << 10)) {
- /* -m opt */
+ if (opt & OPT_m_mbytes) {
G.disp_hr = 1024*1024;
}
- if (opt & (1 << 2)) {
- /* -k opt */
+ if (opt & OPT_k_kbytes) {
G.disp_hr = 1024;
}
#else
@@ -187,34 +189,20 @@ int du_main(int argc UNUSED_PARAM, char **argv)
opt = getopt32(argv, "aHkLsx" "d:" "lc", &G.max_print_depth);
argv += optind;
#if !ENABLE_FEATURE_DU_DEFAULT_BLOCKSIZE_1K
- if (opt & (1 << 2)) {
- /* -k opt */
+ if (opt & OPT_k_kbytes) {
G.disp_k = 1;
}
#endif
#endif
- if (opt & (1 << 0)) {
- /* -a opt */
- G.print_files = INT_MAX;
- }
- if (opt & (1 << 1)) {
- /* -H opt */
+ if (opt & OPT_H_follow_links) {
G.slink_depth = 1;
}
- if (opt & (1 << 3)) {
- /* -L opt */
+ if (opt & OPT_L_follow_links) {
G.slink_depth = INT_MAX;
}
- if (opt & (1 << 4)) {
- /* -s opt */
+ if (opt & OPT_s_total_norecurse) {
G.max_print_depth = 0;
}
- G.one_file_system = opt & (1 << 5); /* -x opt */
- if (opt & (1 << 7)) {
- /* -l opt */
- G.count_hardlinks = MAXINT(nlink_t);
- }
- print_final_total = opt & (1 << 8); /* -c opt */
/* go through remaining args (if any) */
if (!*argv) {
@@ -228,12 +216,12 @@ int du_main(int argc UNUSED_PARAM, char **argv)
total = 0;
do {
total += du(*argv);
+ /* otherwise du /dir /dir won't show /dir twice: */
+ reset_ino_dev_hashtable();
G.slink_depth = slink_depth_save;
} while (*++argv);
- if (ENABLE_FEATURE_CLEAN_UP)
- reset_ino_dev_hashtable();
- if (print_final_total)
+ if (opt & OPT_c_total)
print(total, "total");
fflush_stdout_and_exit(G.status);