1 /* vi: set sw=4 ts=4: */
3 * tiny-ls.c version 0.1.0: A minimalist 'ls'
4 * Copyright (C) 1996 Brian Candler <B.Candler@pobox.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 * To achieve a small memory footprint, this version of 'ls' doesn't do any
23 * file sorting, and only has the most essential command line switches
24 * (i.e., the ones I couldn't live without :-) All features which involve
25 * linking in substantial chunks of libc can be disabled.
27 * Although I don't really want to add new features to this program to
28 * keep it small, I *am* interested to receive bug fixes and ways to make
32 * 1. ls -l of a directory doesn't give "total <blocks>" header
33 * 2. ls of a symlink to a directory doesn't list directory contents
34 * 3. hidden files can make column width too large
36 * NON-OPTIMAL BEHAVIOUR:
37 * 1. autowidth reads directories twice
38 * 2. if you do a short directory listing without filetype characters
39 * appended, there's no need to stat each one
41 * 1. requires lstat (BSD) - how do you do it without?
45 TERMINAL_WIDTH = 80, /* use 79 if terminal has linefold bug */
46 COLUMN_WIDTH = 14, /* default if AUTOWIDTH not defined */
47 COLUMN_GAP = 2, /* includes the file type char */
51 /************************************************************************/
53 #include <sys/types.h>
65 #include <sys/ioctl.h>
68 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
73 #define MAJOR(dev) (((dev)>>8)&0xff)
74 #define MINOR(dev) ((dev)&0xff)
77 /* what is the overall style of the listing */
80 STYLE_LONG = 1, /* one record per line, extended info */
81 STYLE_SINGLE = 2, /* one record per line */
82 STYLE_COLUMNS = 3 /* fill columns */
85 /* 51306 lrwxrwxrwx 1 root root 2 May 11 01:43 /bin/view -> vi* */
86 /* what file information will be listed */
87 #define LIST_INO (1<<0)
88 #define LIST_BLOCKS (1<<1)
89 #define LIST_MODEBITS (1<<2)
90 #define LIST_NLINKS (1<<3)
91 #define LIST_ID_NAME (1<<4)
92 #define LIST_ID_NUMERIC (1<<5)
93 #define LIST_SIZE (1<<6)
94 #define LIST_DEV (1<<7)
95 #define LIST_DATE_TIME (1<<8)
96 #define LIST_FULLTIME (1<<9)
97 #define LIST_FILENAME (1<<10)
98 #define LIST_SYMLINK (1<<11)
99 #define LIST_FILETYPE (1<<12)
100 #define LIST_EXEC (1<<13)
102 /* what files will be displayed */
103 #define DISP_NORMAL (0) /* show normal filenames */
104 #define DISP_DIRNAME (1<<0) /* 2 or more items? label directories */
105 #define DISP_HIDDEN (1<<1) /* show filenames starting with . */
106 #define DISP_DOT (1<<2) /* show . and .. */
107 #define DISP_NOLIST (1<<3) /* show directory as itself, not contents */
108 #define DISP_RECURSIVE (1<<4) /* show directory and everything below it */
109 #define DISP_ROWS (1<<5) /* print across rows */
111 #ifdef CONFIG_FEATURE_LS_SORTFILES
112 /* how will the files be sorted */
113 static const int SORT_FORWARD = 0; /* sort in reverse order */
114 static const int SORT_REVERSE = 1; /* sort in reverse order */
115 static const int SORT_NAME = 2; /* sort by file name */
116 static const int SORT_SIZE = 3; /* sort by file size */
117 static const int SORT_ATIME = 4; /* sort by last access time */
118 static const int SORT_CTIME = 5; /* sort by last change time */
119 static const int SORT_MTIME = 6; /* sort by last modification time */
120 static const int SORT_VERSION = 7; /* sort by version */
121 static const int SORT_EXT = 8; /* sort by file name extension */
122 static const int SORT_DIR = 9; /* sort by file or directory */
125 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
126 /* which of the three times will be used */
127 static const int TIME_MOD = 0;
128 static const int TIME_CHANGE = 1;
129 static const int TIME_ACCESS = 2;
132 #define LIST_SHORT (LIST_FILENAME)
133 #define LIST_ISHORT (LIST_INO | LIST_FILENAME)
134 #define LIST_LONG (LIST_MODEBITS | LIST_NLINKS | LIST_ID_NAME | LIST_SIZE | \
135 LIST_DATE_TIME | LIST_FILENAME | LIST_SYMLINK)
136 #define LIST_ILONG (LIST_INO | LIST_LONG)
138 static const int SPLIT_DIR = 0;
139 static const int SPLIT_FILE = 1;
140 static const int SPLIT_SUBDIR = 2;
142 #define TYPEINDEX(mode) (((mode) >> 12) & 0x0f)
143 #define TYPECHAR(mode) ("0pcCd?bB-?l?s???" [TYPEINDEX(mode)])
145 #if defined(CONFIG_FEATURE_LS_FILETYPES) || defined(CONFIG_FEATURE_LS_COLOR)
146 # define APPCHAR(mode) ("\0|\0\0/\0\0\0\0\0@\0=\0\0\0" [TYPEINDEX(mode)])
149 /* colored LS support by JaWi, janwillem.janssen@lxtreme.nl */
150 #ifdef CONFIG_FEATURE_LS_COLOR
151 static int show_color = 0;
153 #define COLOR(mode) ("\000\043\043\043\042\000\043\043"\
154 "\000\000\044\000\043\000\000\040" [TYPEINDEX(mode)])
155 #define ATTR(mode) ("\00\00\01\00\01\00\01\00"\
156 "\00\00\01\00\01\00\00\01" [TYPEINDEX(mode)])
160 * a directory entry and its stat info are stored here
162 struct dnode { /* the basic node */
163 char *name; /* the dir entry name */
164 char *fullname; /* the dir entry name */
165 struct stat dstat; /* the file stat info */
166 struct dnode *next; /* point at the next node */
168 typedef struct dnode dnode_t;
170 static struct dnode **list_dir(char *);
171 static struct dnode **dnalloc(int);
172 static int list_single(struct dnode *);
174 static unsigned int disp_opts;
175 static unsigned int style_fmt;
176 static unsigned int list_fmt;
178 #ifdef CONFIG_FEATURE_LS_SORTFILES
179 static unsigned int sort_opts;
180 static unsigned int sort_order;
182 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
183 static unsigned int time_fmt;
185 #ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
186 static unsigned int follow_links = FALSE;
189 static unsigned short column = 0;
191 #ifdef CONFIG_FEATURE_AUTOWIDTH
192 static unsigned short terminal_width = TERMINAL_WIDTH;
193 static unsigned short column_width = COLUMN_WIDTH;
194 static unsigned short tabstops = COLUMN_GAP;
196 static unsigned short column_width = COLUMN_WIDTH;
199 static int status = EXIT_SUCCESS;
201 #ifdef CONFIG_FEATURE_HUMAN_READABLE
202 static unsigned long ls_disp_hr = 0;
205 static int my_stat(struct dnode *cur)
207 #ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
209 if (stat(cur->fullname, &cur->dstat)) {
210 perror_msg("%s", cur->fullname);
211 status = EXIT_FAILURE;
218 if (lstat(cur->fullname, &cur->dstat)) {
219 perror_msg("%s", cur->fullname);
220 status = EXIT_FAILURE;
228 static void newline(void)
236 /*----------------------------------------------------------------------*/
237 #ifdef CONFIG_FEATURE_LS_COLOR
238 static char fgcolor(mode_t mode)
240 /* Check wheter the file is existing (if so, color it red!) */
241 if (errno == ENOENT) {
245 if (LIST_EXEC && S_ISREG(mode)
246 && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
247 return COLOR(0xF000); /* File is executable ... */
251 /*----------------------------------------------------------------------*/
252 static char bgcolor(mode_t mode)
254 if (LIST_EXEC && S_ISREG(mode)
255 && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
256 return ATTR(0xF000); /* File is executable ... */
261 /*----------------------------------------------------------------------*/
262 #if defined(CONFIG_FEATURE_LS_FILETYPES) || defined(CONFIG_FEATURE_LS_COLOR)
263 static char append_char(mode_t mode)
265 if (!(list_fmt & LIST_FILETYPE))
267 if ((list_fmt & LIST_EXEC) && S_ISREG(mode)
268 && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
270 return APPCHAR(mode);
274 /*----------------------------------------------------------------------*/
275 static void nexttabstop(void)
277 static short nexttab = 0;
281 n = nexttab - column;
289 nexttab = column + column_width + COLUMN_GAP;
292 /*----------------------------------------------------------------------*/
293 static int is_subdir(struct dnode *dn)
295 return (S_ISDIR(dn->dstat.st_mode) && strcmp(dn->name, ".") != 0 &&
296 strcmp(dn->name, "..") != 0);
299 static int countdirs(struct dnode **dn, int nfiles)
303 if (dn == NULL || nfiles < 1)
306 for (i = 0; i < nfiles; i++) {
307 if (S_ISDIR(dn[i]->dstat.st_mode))
313 static int countsubdirs(struct dnode **dn, int nfiles)
317 if (dn == NULL || nfiles < 1)
320 for (i = 0; i < nfiles; i++)
321 if (is_subdir(dn[i]))
326 static int countfiles(struct dnode **dnp)
334 for (cur = dnp[0]; cur->next != NULL; cur = cur->next)
340 /* get memory to hold an array of pointers */
341 static struct dnode **dnalloc(int num)
348 p = (struct dnode **) xcalloc((size_t) num,
349 (size_t) (sizeof(struct dnode *)));
353 #ifdef CONFIG_FEATURE_LS_RECURSIVE
354 static void dfree(struct dnode **dnp)
356 struct dnode *cur, *next;
362 while (cur != NULL) {
363 if (cur->fullname != NULL)
364 free(cur->fullname); /* free the filename */
366 free(cur); /* free the dnode */
369 free(dnp); /* free the array holding the dnode pointers */
373 static struct dnode **splitdnarray(struct dnode **dn, int nfiles, int which)
378 if (dn == NULL || nfiles < 1)
381 /* count how many dirs and regular files there are */
382 if (which == SPLIT_SUBDIR)
383 dncnt = countsubdirs(dn, nfiles);
385 dncnt = countdirs(dn, nfiles); /* assume we are looking for dirs */
386 if (which == SPLIT_FILE)
387 dncnt = nfiles - dncnt; /* looking for files */
390 /* allocate a file array and a dir array */
391 dnp = dnalloc(dncnt);
393 /* copy the entrys into the file or dir array */
394 for (d = i = 0; i < nfiles; i++) {
395 if (which == SPLIT_DIR) {
396 if (S_ISDIR(dn[i]->dstat.st_mode)) {
398 } /* else skip the file */
399 } else if (which == SPLIT_SUBDIR) {
400 if (is_subdir(dn[i])) {
402 } /* else skip the file or dir */
404 if (!(S_ISDIR(dn[i]->dstat.st_mode))) {
406 } /* else skip the dir */
412 /*----------------------------------------------------------------------*/
413 #ifdef CONFIG_FEATURE_LS_SORTFILES
414 static int sortcmp(struct dnode *d1, struct dnode *d2)
419 if (sort_opts == SORT_SIZE) {
420 dif = (int) (d1->dstat.st_size - d2->dstat.st_size);
421 } else if (sort_opts == SORT_ATIME) {
422 dif = (int) (d1->dstat.st_atime - d2->dstat.st_atime);
423 } else if (sort_opts == SORT_CTIME) {
424 dif = (int) (d1->dstat.st_ctime - d2->dstat.st_ctime);
425 } else if (sort_opts == SORT_MTIME) {
426 dif = (int) (d1->dstat.st_mtime - d2->dstat.st_mtime);
427 } else if (sort_opts == SORT_DIR) {
428 dif = S_ISDIR(d1->dstat.st_mode) - S_ISDIR(d2->dstat.st_mode);
429 /* } else if (sort_opts == SORT_VERSION) { */
430 /* } else if (sort_opts == SORT_EXT) { */
431 } else { /* assume SORT_NAME */
440 /* sort by name- may be a tie_breaker for time or size cmp */
441 dif = strcmp(d1->name, d2->name);
448 if (sort_order == SORT_REVERSE) {
454 /*----------------------------------------------------------------------*/
455 static void shellsort(struct dnode **dn, int size)
460 /* shell short the array */
461 if (dn == NULL || size < 2)
464 for (gap = size / 2; gap > 0; gap /= 2) {
465 for (i = gap; i < size; i++) {
466 for (j = i - gap; j >= 0; j -= gap) {
467 if (sortcmp(dn[j], dn[j + gap]) <= 0)
469 /* they are out of order, swap them */
479 /*----------------------------------------------------------------------*/
480 static void showfiles(struct dnode **dn, int nfiles)
482 int i, ncols, nrows, row, nc;
484 #ifdef CONFIG_FEATURE_AUTOWIDTH
488 if (dn == NULL || nfiles < 1)
491 #ifdef CONFIG_FEATURE_AUTOWIDTH
492 /* find the longest file name- use that as the column width */
494 for (i = 0; i < nfiles; i++) {
495 len = strlen(dn[i]->name) +
496 ((list_fmt & LIST_INO) ? 8 : 0) +
497 ((list_fmt & LIST_BLOCKS) ? 5 : 0);
498 if (column_width < len)
501 ncols = (int) (terminal_width / (column_width + COLUMN_GAP));
503 ncols = TERMINAL_WIDTH;
506 case STYLE_LONG: /* one record per line, extended info */
507 case STYLE_SINGLE: /* one record per line */
513 nrows = nfiles / ncols;
518 if ((nrows * ncols) < nfiles)
519 nrows++; /* round up fractionals */
523 for (row = 0; row < nrows; row++) {
524 for (nc = 0; nc < ncols; nc++) {
525 /* reach into the array based on the column and row */
526 i = (nc * nrows) + row; /* assume display by column */
527 if (disp_opts & DISP_ROWS)
528 i = (row * ncols) + nc; /* display across row */
538 /*----------------------------------------------------------------------*/
539 static void showdirs(struct dnode **dn, int ndirs)
542 struct dnode **subdnp;
544 #ifdef CONFIG_FEATURE_LS_RECURSIVE
549 if (dn == NULL || ndirs < 1)
552 for (i = 0; i < ndirs; i++) {
553 if (disp_opts & (DISP_DIRNAME | DISP_RECURSIVE)) {
554 printf("\n%s:\n", dn[i]->fullname);
556 subdnp = list_dir(dn[i]->fullname);
557 nfiles = countfiles(subdnp);
559 /* list all files at this level */
560 #ifdef CONFIG_FEATURE_LS_SORTFILES
561 shellsort(subdnp, nfiles);
563 showfiles(subdnp, nfiles);
564 #ifdef CONFIG_FEATURE_LS_RECURSIVE
565 if (disp_opts & DISP_RECURSIVE) {
566 /* recursive- list the sub-dirs */
567 dnd = splitdnarray(subdnp, nfiles, SPLIT_SUBDIR);
568 dndirs = countsubdirs(subdnp, nfiles);
570 #ifdef CONFIG_FEATURE_LS_SORTFILES
571 shellsort(dnd, dndirs);
573 showdirs(dnd, dndirs);
574 free(dnd); /* free the array of dnode pointers to the dirs */
577 dfree(subdnp); /* free the dnodes and the fullname mem */
583 /*----------------------------------------------------------------------*/
584 static struct dnode **list_dir(char *path)
586 struct dnode *dn, *cur, **dnp;
587 struct dirent *entry;
598 perror_msg("%s", path);
599 status = EXIT_FAILURE;
600 return (NULL); /* could not open the dir */
602 while ((entry = readdir(dir)) != NULL) {
603 /* are we going to list the file- it may be . or .. or a hidden file */
604 if ((strcmp(entry->d_name, ".") == 0) && !(disp_opts & DISP_DOT))
606 if ((strcmp(entry->d_name, "..") == 0) && !(disp_opts & DISP_DOT))
608 if ((entry->d_name[0] == '.') && !(disp_opts & DISP_HIDDEN))
610 cur = (struct dnode *) xmalloc(sizeof(struct dnode));
611 cur->fullname = concat_path_file(path, entry->d_name);
612 cur->name = cur->fullname +
613 (strlen(cur->fullname) - strlen(entry->d_name));
622 /* now that we know how many files there are
623 ** allocate memory for an array to hold dnode pointers
627 dnp = dnalloc(nfiles);
628 for (i = 0, cur = dn; i < nfiles; i++) {
629 dnp[i] = cur; /* save pointer to node in array */
636 /*----------------------------------------------------------------------*/
637 static int list_single(struct dnode *dn)
641 #ifdef CONFIG_FEATURE_LS_USERNAME
642 char scratch[BUFSIZ + 1];
644 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
648 #if defined(CONFIG_FEATURE_LS_FILETYPES) || defined (CONFIG_FEATURE_LS_COLOR)
653 if (dn == NULL || dn->fullname == NULL)
656 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
657 ttime = dn->dstat.st_mtime; /* the default time */
658 if (time_fmt & TIME_ACCESS)
659 ttime = dn->dstat.st_atime;
660 if (time_fmt & TIME_CHANGE)
661 ttime = dn->dstat.st_ctime;
662 filetime = ctime(&ttime);
664 #ifdef CONFIG_FEATURE_LS_FILETYPES
665 append = append_char(dn->dstat.st_mode);
668 for (i = 0; i <= 31; i++) {
669 switch (list_fmt & (1 << i)) {
671 printf("%7ld ", (long int) dn->dstat.st_ino);
675 #ifdef CONFIG_FEATURE_HUMAN_READABLE
676 printf("%6s ", make_human_readable_str(dn->dstat.st_blocks >> 1,
677 KILOBYTE, (ls_disp_hr == TRUE) ? 0 : KILOBYTE));
679 #if _FILE_OFFSET_BITS == 64
680 printf("%4lld ", dn->dstat.st_blocks >> 1);
682 printf("%4ld ", dn->dstat.st_blocks >> 1);
688 printf("%-10s ", (char *) mode_string(dn->dstat.st_mode));
692 printf("%4ld ", (long) dn->dstat.st_nlink);
696 #ifdef CONFIG_FEATURE_LS_USERNAME
697 my_getpwuid(scratch, dn->dstat.st_uid);
698 printf("%-8.8s ", scratch);
699 my_getgrgid(scratch, dn->dstat.st_gid);
700 printf("%-8.8s", scratch);
704 case LIST_ID_NUMERIC:
705 printf("%-8d %-8d", dn->dstat.st_uid, dn->dstat.st_gid);
710 if (S_ISBLK(dn->dstat.st_mode) || S_ISCHR(dn->dstat.st_mode)) {
711 printf("%4d, %3d ", (int) MAJOR(dn->dstat.st_rdev),
712 (int) MINOR(dn->dstat.st_rdev));
714 #ifdef CONFIG_FEATURE_HUMAN_READABLE
715 if (ls_disp_hr == TRUE) {
716 printf("%8s ", make_human_readable_str(dn->dstat.st_size, 1, 0));
720 #if _FILE_OFFSET_BITS == 64
721 printf("%9lld ", (long long) dn->dstat.st_size);
723 printf("%9ld ", dn->dstat.st_size);
729 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
732 if (list_fmt & LIST_FULLTIME) {
733 printf("%24.24s ", filetime);
737 age = time(NULL) - ttime;
738 printf("%6.6s ", filetime + 4);
739 if (age < 3600L * 24 * 365 / 2 && age > -15 * 60) {
740 /* hh:mm if less than 6 months old */
741 printf("%5.5s ", filetime + 11);
743 printf(" %4.4s ", filetime + 20);
749 #ifdef CONFIG_FEATURE_LS_COLOR
751 if (show_color && !lstat(dn->fullname, &info)) {
752 printf("\033[%d;%dm", bgcolor(info.st_mode),
753 fgcolor(info.st_mode));
756 printf("%s", dn->name);
757 #ifdef CONFIG_FEATURE_LS_COLOR
762 column += strlen(dn->name);
765 if (S_ISLNK(dn->dstat.st_mode)) {
766 char *lpath = xreadlink(dn->fullname);
770 #if defined(CONFIG_FEATURE_LS_FILETYPES) || defined (CONFIG_FEATURE_LS_COLOR)
771 if (!stat(dn->fullname, &info)) {
772 append = append_char(info.st_mode);
775 #ifdef CONFIG_FEATURE_LS_COLOR
778 printf("\033[%d;%dm", bgcolor(info.st_mode),
779 fgcolor(info.st_mode));
783 #ifdef CONFIG_FEATURE_LS_COLOR
788 column += strlen(lpath) + 4;
793 #ifdef CONFIG_FEATURE_LS_FILETYPES
795 if (append != '\0') {
796 printf("%1c", append);
807 /*----------------------------------------------------------------------*/
808 extern int ls_main(int argc, char **argv)
810 struct dnode **dnf, **dnd;
812 struct dnode *dn, *cur, **dnp;
818 #ifdef CONFIG_FEATURE_AUTOWIDTH
819 struct winsize win = { 0, 0, 0, 0 };
822 disp_opts = DISP_NORMAL;
823 style_fmt = STYLE_AUTO;
824 list_fmt = LIST_SHORT;
825 #ifdef CONFIG_FEATURE_LS_SORTFILES
826 sort_opts = SORT_NAME;
827 sort_order = SORT_FORWARD;
829 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
832 #ifdef CONFIG_FEATURE_AUTOWIDTH
833 ioctl(fileno(stdout), TIOCGWINSZ, &win);
835 column_width = win.ws_row - 2;
837 terminal_width = win.ws_col - 1;
841 #ifdef CONFIG_FEATURE_LS_COLOR
842 if (isatty(fileno(stdout)))
846 /* process options */
847 while ((opt = getopt(argc, argv, "1AaCdgilnsx"
848 #ifdef CONFIG_FEATURE_AUTOWIDTH
851 #ifdef CONFIG_FEATURE_LS_FILETYPES
854 #ifdef CONFIG_FEATURE_LS_RECURSIVE
857 #ifdef CONFIG_FEATURE_LS_SORTFILES
860 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
863 #ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
866 #ifdef CONFIG_FEATURE_HUMAN_READABLE
872 style_fmt = STYLE_SINGLE;
875 disp_opts |= DISP_HIDDEN;
878 disp_opts |= DISP_HIDDEN | DISP_DOT;
881 style_fmt = STYLE_COLUMNS;
884 disp_opts |= DISP_NOLIST;
886 case 'g': /* ignore -- for ftp servers */
889 list_fmt |= LIST_INO;
892 style_fmt = STYLE_LONG;
893 list_fmt |= LIST_LONG;
894 #ifdef CONFIG_FEATURE_HUMAN_READABLE
899 list_fmt |= LIST_ID_NUMERIC;
902 list_fmt |= LIST_BLOCKS;
905 disp_opts = DISP_ROWS;
907 #ifdef CONFIG_FEATURE_LS_FILETYPES
909 list_fmt |= LIST_FILETYPE | LIST_EXEC;
912 list_fmt |= LIST_FILETYPE;
915 #ifdef CONFIG_FEATURE_LS_RECURSIVE
917 disp_opts |= DISP_RECURSIVE;
920 #ifdef CONFIG_FEATURE_LS_SORTFILES
922 sort_order |= SORT_REVERSE;
925 sort_opts = SORT_SIZE;
928 sort_opts = SORT_VERSION;
931 sort_opts = SORT_EXT;
934 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
936 list_fmt |= LIST_FULLTIME;
939 time_fmt = TIME_CHANGE;
940 #ifdef CONFIG_FEATURE_LS_SORTFILES
941 sort_opts = SORT_CTIME;
945 time_fmt = TIME_ACCESS;
946 #ifdef CONFIG_FEATURE_LS_SORTFILES
947 sort_opts = SORT_ATIME;
951 #ifdef CONFIG_FEATURE_LS_SORTFILES
952 sort_opts = SORT_MTIME;
956 #ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
961 #ifdef CONFIG_FEATURE_AUTOWIDTH
963 tabstops = atoi(optarg);
966 terminal_width = atoi(optarg);
969 #ifdef CONFIG_FEATURE_HUMAN_READABLE
977 goto print_usage_message;
981 /* sort out which command line options take precedence */
982 #ifdef CONFIG_FEATURE_LS_RECURSIVE
983 if (disp_opts & DISP_NOLIST)
984 disp_opts &= ~DISP_RECURSIVE; /* no recurse if listing only dir */
986 #if defined (CONFIG_FEATURE_LS_TIMESTAMPS) && defined (CONFIG_FEATURE_LS_SORTFILES)
987 if (time_fmt & TIME_CHANGE)
988 sort_opts = SORT_CTIME;
989 if (time_fmt & TIME_ACCESS)
990 sort_opts = SORT_ATIME;
992 if (style_fmt != STYLE_LONG)
993 list_fmt &= ~LIST_ID_NUMERIC; /* numeric uid only for long list */
994 #ifdef CONFIG_FEATURE_LS_USERNAME
995 if (style_fmt == STYLE_LONG && (list_fmt & LIST_ID_NUMERIC))
996 list_fmt &= ~LIST_ID_NAME; /* don't list names if numeric uid */
999 /* choose a display format */
1000 if (style_fmt == STYLE_AUTO)
1001 style_fmt = isatty(fileno(stdout)) ? STYLE_COLUMNS : STYLE_SINGLE;
1004 * when there are no cmd line args we have to supply a default "." arg.
1005 * we will create a second argv array, "av" that will hold either
1006 * our created "." arg, or the real cmd line args. The av array
1007 * just holds the pointers- we don't move the date the pointers
1010 ac = argc - optind; /* how many cmd line args are left */
1012 av = (char **) xcalloc((size_t) 1, (size_t) (sizeof(char *)));
1013 av[0] = xstrdup(".");
1016 av = (char **) xcalloc((size_t) ac, (size_t) (sizeof(char *)));
1017 for (oi = 0; oi < ac; oi++) {
1018 av[oi] = argv[optind++]; /* copy pointer to real cmd line arg */
1022 /* now, everything is in the av array */
1024 disp_opts |= DISP_DIRNAME; /* 2 or more items? label directories */
1026 /* stuff the command line file names into an dnode array */
1028 for (oi = 0; oi < ac; oi++) {
1029 cur = (struct dnode *) xmalloc(sizeof(struct dnode));
1030 cur->fullname = xstrdup(av[oi]);
1031 cur->name = cur->fullname;
1039 /* now that we know how many files there are
1040 ** allocate memory for an array to hold dnode pointers
1042 dnp = dnalloc(nfiles);
1043 for (i = 0, cur = dn; i < nfiles; i++) {
1044 dnp[i] = cur; /* save pointer to node in array */
1049 if (disp_opts & DISP_NOLIST) {
1050 #ifdef CONFIG_FEATURE_LS_SORTFILES
1051 shellsort(dnp, nfiles);
1054 showfiles(dnp, nfiles);
1056 dnd = splitdnarray(dnp, nfiles, SPLIT_DIR);
1057 dnf = splitdnarray(dnp, nfiles, SPLIT_FILE);
1058 dndirs = countdirs(dnp, nfiles);
1059 dnfiles = nfiles - dndirs;
1061 #ifdef CONFIG_FEATURE_LS_SORTFILES
1062 shellsort(dnf, dnfiles);
1064 showfiles(dnf, dnfiles);
1067 #ifdef CONFIG_FEATURE_LS_SORTFILES
1068 shellsort(dnd, dndirs);
1070 showdirs(dnd, dndirs);
1075 print_usage_message: