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
This commit is contained in:
Denis Vlasenko
parent
3b35fbb632
commit
618a3027ed
@ -25,19 +25,28 @@
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#include "libbb.h"
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enum {
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OPT_a_files_too = (1 << 0),
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OPT_H_follow_links = (1 << 1),
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OPT_k_kbytes = (1 << 2),
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OPT_L_follow_links = (1 << 3),
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OPT_s_total_norecurse = (1 << 4),
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OPT_x_one_FS = (1 << 5),
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OPT_d_maxdepth = (1 << 6),
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OPT_l_hardlinks = (1 << 7),
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OPT_c_total = (1 << 8),
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OPT_h_for_humans = (1 << 9),
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OPT_m_mbytes = (1 << 10),
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};
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struct globals {
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#if ENABLE_FEATURE_HUMAN_READABLE
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unsigned long disp_hr;
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#else
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unsigned disp_k;
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#endif
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int max_print_depth;
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nlink_t count_hardlinks;
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bool status;
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bool one_file_system;
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int print_files;
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int slink_depth;
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int du_depth;
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dev_t dir_dev;
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@ -72,7 +81,7 @@ static unsigned long du(const char *filename)
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return 0;
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}
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if (G.one_file_system) {
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if (option_mask32 & OPT_x_one_FS) {
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if (G.du_depth == 0) {
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G.dir_dev = statbuf.st_dev;
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} else if (G.dir_dev != statbuf.st_dev) {
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@ -83,7 +92,7 @@ static unsigned long du(const char *filename)
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sum = statbuf.st_blocks;
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if (S_ISLNK(statbuf.st_mode)) {
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if (G.slink_depth > G.du_depth) { /* -H or -L */
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if (G.slink_depth > G.du_depth) { /* -H or -L */
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if (stat(filename, &statbuf) != 0) {
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bb_simple_perror_msg(filename);
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G.status = EXIT_FAILURE;
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@ -91,12 +100,15 @@ static unsigned long du(const char *filename)
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}
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sum = statbuf.st_blocks;
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if (G.slink_depth == 1) {
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G.slink_depth = INT_MAX; /* Convert -H to -L. */
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/* Convert -H to -L */
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G.slink_depth = INT_MAX;
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}
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}
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}
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if (statbuf.st_nlink > G.count_hardlinks) {
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if (!(option_mask32 & OPT_l_hardlinks)
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&& statbuf.st_nlink > 1
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) {
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/* Add files/directories with links only once */
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if (is_in_ino_dev_hashtable(&statbuf)) {
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return 0;
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@ -115,14 +127,8 @@ static unsigned long du(const char *filename)
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return sum;
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}
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newfile = last_char_is(filename, '/');
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if (newfile)
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*newfile = '\0';
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while ((entry = readdir(dir))) {
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char *name = entry->d_name;
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newfile = concat_subpath_file(filename, name);
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newfile = concat_subpath_file(filename, entry->d_name);
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if (newfile == NULL)
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continue;
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++G.du_depth;
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@ -131,8 +137,9 @@ static unsigned long du(const char *filename)
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free(newfile);
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}
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closedir(dir);
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} else if (G.du_depth > G.print_files) {
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return sum;
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} else {
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if (!(option_mask32 & OPT_a_files_too) && G.du_depth != 0)
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return sum;
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}
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if (G.du_depth <= G.max_print_depth) {
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print(sum, filename);
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@ -145,7 +152,6 @@ int du_main(int argc UNUSED_PARAM, char **argv)
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{
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unsigned long total;
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int slink_depth_save;
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bool print_final_total;
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unsigned opt;
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#if ENABLE_FEATURE_HUMAN_READABLE
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@ -158,7 +164,6 @@ int du_main(int argc UNUSED_PARAM, char **argv)
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/* SKIP_FEATURE_DU_DEFAULT_BLOCKSIZE_1K(G.disp_k = 0;) - G is pre-zeroed */
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#endif
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G.max_print_depth = INT_MAX;
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G.count_hardlinks = 1;
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/* Note: SUSv3 specifies that -a and -s options cannot be used together
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* in strictly conforming applications. However, it also says that some
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@ -170,16 +175,13 @@ int du_main(int argc UNUSED_PARAM, char **argv)
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opt_complementary = "h-km:k-hm:m-hk:H-L:L-H:s-d:d-s:d+";
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opt = getopt32(argv, "aHkLsx" "d:" "lc" "hm", &G.max_print_depth);
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argv += optind;
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if (opt & (1 << 9)) {
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/* -h opt */
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if (opt & OPT_h_for_humans) {
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G.disp_hr = 0;
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}
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if (opt & (1 << 10)) {
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/* -m opt */
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if (opt & OPT_m_mbytes) {
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G.disp_hr = 1024*1024;
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}
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if (opt & (1 << 2)) {
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/* -k opt */
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if (opt & OPT_k_kbytes) {
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G.disp_hr = 1024;
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}
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#else
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@ -187,34 +189,20 @@ int du_main(int argc UNUSED_PARAM, char **argv)
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opt = getopt32(argv, "aHkLsx" "d:" "lc", &G.max_print_depth);
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argv += optind;
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#if !ENABLE_FEATURE_DU_DEFAULT_BLOCKSIZE_1K
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if (opt & (1 << 2)) {
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/* -k opt */
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if (opt & OPT_k_kbytes) {
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G.disp_k = 1;
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}
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#endif
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#endif
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if (opt & (1 << 0)) {
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/* -a opt */
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G.print_files = INT_MAX;
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}
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if (opt & (1 << 1)) {
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/* -H opt */
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if (opt & OPT_H_follow_links) {
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G.slink_depth = 1;
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}
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if (opt & (1 << 3)) {
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/* -L opt */
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if (opt & OPT_L_follow_links) {
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G.slink_depth = INT_MAX;
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}
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if (opt & (1 << 4)) {
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/* -s opt */
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if (opt & OPT_s_total_norecurse) {
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G.max_print_depth = 0;
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}
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G.one_file_system = opt & (1 << 5); /* -x opt */
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if (opt & (1 << 7)) {
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/* -l opt */
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G.count_hardlinks = MAXINT(nlink_t);
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}
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print_final_total = opt & (1 << 8); /* -c opt */
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/* go through remaining args (if any) */
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if (!*argv) {
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@ -228,12 +216,12 @@ int du_main(int argc UNUSED_PARAM, char **argv)
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total = 0;
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do {
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total += du(*argv);
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/* otherwise du /dir /dir won't show /dir twice: */
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reset_ino_dev_hashtable();
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G.slink_depth = slink_depth_save;
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} while (*++argv);
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if (ENABLE_FEATURE_CLEAN_UP)
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reset_ino_dev_hashtable();
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if (print_final_total)
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if (opt & OPT_c_total)
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print(total, "total");
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fflush_stdout_and_exit(G.status);
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@ -67,7 +67,7 @@ void FAST_FUNC add_to_ino_dev_hashtable(const struct stat *statbuf, const char *
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ino_dev_hashtable[i] = bucket;
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}
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#if ENABLE_FEATURE_CLEAN_UP
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#if ENABLE_DU || ENABLE_FEATURE_CLEAN_UP
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/* Clear statbuf hash table */
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void FAST_FUNC reset_ino_dev_hashtable(void)
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{
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