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_GAP = 2, /* includes the file type char */
49 /************************************************************************/
51 #include <sys/types.h>
63 #include <sys/ioctl.h>
66 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
71 #define MAJOR(dev) (((dev)>>8)&0xff)
72 #define MINOR(dev) ((dev)&0xff)
75 /* what is the overall style of the listing */
78 STYLE_LONG = 1, /* one record per line, extended info */
79 STYLE_SINGLE = 2, /* one record per line */
80 STYLE_COLUMNS = 3 /* fill columns */
83 /* 51306 lrwxrwxrwx 1 root root 2 May 11 01:43 /bin/view -> vi* */
84 /* what file information will be listed */
85 #define LIST_INO (1<<0)
86 #define LIST_BLOCKS (1<<1)
87 #define LIST_MODEBITS (1<<2)
88 #define LIST_NLINKS (1<<3)
89 #define LIST_ID_NAME (1<<4)
90 #define LIST_ID_NUMERIC (1<<5)
91 #define LIST_SIZE (1<<6)
92 #define LIST_DEV (1<<7)
93 #define LIST_DATE_TIME (1<<8)
94 #define LIST_FULLTIME (1<<9)
95 #define LIST_FILENAME (1<<10)
96 #define LIST_SYMLINK (1<<11)
97 #define LIST_FILETYPE (1<<12)
98 #define LIST_EXEC (1<<13)
100 /* what files will be displayed */
101 #define DISP_NORMAL (0) /* show normal filenames */
102 #define DISP_DIRNAME (1<<0) /* 2 or more items? label directories */
103 #define DISP_HIDDEN (1<<1) /* show filenames starting with . */
104 #define DISP_DOT (1<<2) /* show . and .. */
105 #define DISP_NOLIST (1<<3) /* show directory as itself, not contents */
106 #define DISP_RECURSIVE (1<<4) /* show directory and everything below it */
107 #define DISP_ROWS (1<<5) /* print across rows */
109 #ifdef CONFIG_FEATURE_LS_SORTFILES
110 /* how will the files be sorted */
111 static const int SORT_FORWARD = 0; /* sort in reverse order */
112 static const int SORT_REVERSE = 1; /* sort in reverse order */
113 static const int SORT_NAME = 2; /* sort by file name */
114 static const int SORT_SIZE = 3; /* sort by file size */
115 static const int SORT_ATIME = 4; /* sort by last access time */
116 static const int SORT_CTIME = 5; /* sort by last change time */
117 static const int SORT_MTIME = 6; /* sort by last modification time */
118 static const int SORT_VERSION = 7; /* sort by version */
119 static const int SORT_EXT = 8; /* sort by file name extension */
120 static const int SORT_DIR = 9; /* sort by file or directory */
123 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
124 /* which of the three times will be used */
125 static const int TIME_MOD = 0;
126 static const int TIME_CHANGE = 1;
127 static const int TIME_ACCESS = 2;
130 #define LIST_SHORT (LIST_FILENAME)
131 #define LIST_ISHORT (LIST_INO | LIST_FILENAME)
132 #define LIST_LONG (LIST_MODEBITS | LIST_NLINKS | LIST_ID_NAME | LIST_SIZE | \
133 LIST_DATE_TIME | LIST_FILENAME | LIST_SYMLINK)
134 #define LIST_ILONG (LIST_INO | LIST_LONG)
136 static const int SPLIT_DIR = 0;
137 static const int SPLIT_FILE = 1;
138 static const int SPLIT_SUBDIR = 2;
140 #define TYPEINDEX(mode) (((mode) >> 12) & 0x0f)
141 #define TYPECHAR(mode) ("0pcCd?bB-?l?s???" [TYPEINDEX(mode)])
143 #if defined(CONFIG_FEATURE_LS_FILETYPES) || defined(CONFIG_FEATURE_LS_COLOR)
144 # define APPCHAR(mode) ("\0|\0\0/\0\0\0\0\0@\0=\0\0\0" [TYPEINDEX(mode)])
147 /* colored LS support by JaWi, janwillem.janssen@lxtreme.nl */
148 #ifdef CONFIG_FEATURE_LS_COLOR
149 static int show_color = 0;
151 #define COLOR(mode) ("\000\043\043\043\042\000\043\043"\
152 "\000\000\044\000\043\000\000\040" [TYPEINDEX(mode)])
153 #define ATTR(mode) ("\00\00\01\00\01\00\01\00"\
154 "\00\00\01\00\01\00\00\01" [TYPEINDEX(mode)])
158 * a directory entry and its stat info are stored here
160 struct dnode { /* the basic node */
161 char *name; /* the dir entry name */
162 char *fullname; /* the dir entry name */
163 struct stat dstat; /* the file stat info */
164 struct dnode *next; /* point at the next node */
166 typedef struct dnode dnode_t;
168 static struct dnode **list_dir(const char *);
169 static struct dnode **dnalloc(int);
170 static int list_single(struct dnode *);
172 static unsigned int disp_opts;
173 static unsigned int style_fmt;
174 static unsigned int list_fmt;
176 #ifdef CONFIG_FEATURE_LS_SORTFILES
177 static unsigned int sort_opts;
178 static unsigned int sort_order;
180 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
181 static unsigned int time_fmt;
183 #ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
184 static unsigned int follow_links = FALSE;
187 #ifdef CONFIG_FEATURE_AUTOWIDTH
188 static unsigned short terminal_width = TERMINAL_WIDTH;
189 static unsigned short tabstops = COLUMN_GAP;
191 #define tabstops COLUMN_GAP
192 #define terminal_width TERMINAL_WIDTH
195 static int status = EXIT_SUCCESS;
197 #ifdef CONFIG_FEATURE_HUMAN_READABLE
198 static unsigned long ls_disp_hr = 0;
201 static struct dnode *my_stat(char *fullname, char *name)
206 #ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
208 if (stat(fullname, &dstat)) {
209 perror_msg("%s", fullname);
210 status = EXIT_FAILURE;
215 if (lstat(fullname, &dstat)) {
216 perror_msg("%s", fullname);
217 status = EXIT_FAILURE;
221 cur = (struct dnode *) xmalloc(sizeof(struct dnode));
222 cur->fullname = fullname;
228 /*----------------------------------------------------------------------*/
229 #ifdef CONFIG_FEATURE_LS_COLOR
230 static char fgcolor(mode_t mode)
232 /* Check wheter the file is existing (if so, color it red!) */
233 if (errno == ENOENT) {
236 if (LIST_EXEC && S_ISREG(mode)
237 && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
238 return COLOR(0xF000); /* File is executable ... */
242 /*----------------------------------------------------------------------*/
243 static char bgcolor(mode_t mode)
245 if (LIST_EXEC && S_ISREG(mode)
246 && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
247 return ATTR(0xF000); /* File is executable ... */
252 /*----------------------------------------------------------------------*/
253 #if defined(CONFIG_FEATURE_LS_FILETYPES) || defined(CONFIG_FEATURE_LS_COLOR)
254 static char append_char(mode_t mode)
256 if (!(list_fmt & LIST_FILETYPE))
258 if ((list_fmt & LIST_EXEC) && S_ISREG(mode)
259 && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
261 return APPCHAR(mode);
265 /*----------------------------------------------------------------------*/
266 static int is_subdir(struct dnode *dn)
268 return (S_ISDIR(dn->dstat.st_mode) && strcmp(dn->name, ".") != 0 &&
269 strcmp(dn->name, "..") != 0);
272 static int countdirs(struct dnode **dn, int nfiles)
276 if (dn == NULL || nfiles < 1)
279 for (i = 0; i < nfiles; i++) {
280 if (S_ISDIR(dn[i]->dstat.st_mode))
286 static int countsubdirs(struct dnode **dn, int nfiles)
290 if (dn == NULL || nfiles < 1)
293 for (i = 0; i < nfiles; i++)
294 if (is_subdir(dn[i]))
299 static int countfiles(struct dnode **dnp)
307 for (cur = dnp[0]; cur->next != NULL; cur = cur->next)
313 /* get memory to hold an array of pointers */
314 static struct dnode **dnalloc(int num)
321 p = (struct dnode **) xcalloc((size_t) num,
322 (size_t) (sizeof(struct dnode *)));
326 #ifdef CONFIG_FEATURE_LS_RECURSIVE
327 static void dfree(struct dnode **dnp)
329 struct dnode *cur, *next;
335 while (cur != NULL) {
336 free(cur->fullname); /* free the filename */
338 free(cur); /* free the dnode */
341 free(dnp); /* free the array holding the dnode pointers */
345 static struct dnode **splitdnarray(struct dnode **dn, int nfiles, int which)
350 if (dn == NULL || nfiles < 1)
353 /* count how many dirs and regular files there are */
354 if (which == SPLIT_SUBDIR)
355 dncnt = countsubdirs(dn, nfiles);
357 dncnt = countdirs(dn, nfiles); /* assume we are looking for dirs */
358 if (which == SPLIT_FILE)
359 dncnt = nfiles - dncnt; /* looking for files */
362 /* allocate a file array and a dir array */
363 dnp = dnalloc(dncnt);
365 /* copy the entrys into the file or dir array */
366 for (d = i = 0; i < nfiles; i++) {
367 if (which == SPLIT_DIR) {
368 if (S_ISDIR(dn[i]->dstat.st_mode)) {
370 } /* else skip the file */
371 } else if (which == SPLIT_SUBDIR) {
372 if (is_subdir(dn[i])) {
374 } /* else skip the file or dir */
376 if (!(S_ISDIR(dn[i]->dstat.st_mode))) {
378 } /* else skip the dir */
384 /*----------------------------------------------------------------------*/
385 #ifdef CONFIG_FEATURE_LS_SORTFILES
386 static int sortcmp(struct dnode *d1, struct dnode *d2)
391 if (sort_opts == SORT_SIZE) {
392 dif = (int) (d1->dstat.st_size - d2->dstat.st_size);
393 } else if (sort_opts == SORT_ATIME) {
394 dif = (int) (d1->dstat.st_atime - d2->dstat.st_atime);
395 } else if (sort_opts == SORT_CTIME) {
396 dif = (int) (d1->dstat.st_ctime - d2->dstat.st_ctime);
397 } else if (sort_opts == SORT_MTIME) {
398 dif = (int) (d1->dstat.st_mtime - d2->dstat.st_mtime);
399 } else if (sort_opts == SORT_DIR) {
400 dif = S_ISDIR(d1->dstat.st_mode) - S_ISDIR(d2->dstat.st_mode);
401 /* } else if (sort_opts == SORT_VERSION) { */
402 /* } else if (sort_opts == SORT_EXT) { */
403 } else { /* assume SORT_NAME */
412 /* sort by name- may be a tie_breaker for time or size cmp */
413 #ifdef CONFIG_LOCALE_SUPPORT
414 dif = strcoll(d1->name, d2->name);
416 dif = strcmp(d1->name, d2->name);
424 if (sort_order == SORT_REVERSE) {
430 /*----------------------------------------------------------------------*/
431 static void shellsort(struct dnode **dn, int size)
436 /* shell short the array */
437 if (dn == NULL || size < 2)
440 for (gap = size / 2; gap > 0; gap /= 2) {
441 for (i = gap; i < size; i++) {
442 for (j = i - gap; j >= 0; j -= gap) {
443 if (sortcmp(dn[j], dn[j + gap]) <= 0)
445 /* they are out of order, swap them */
455 /*----------------------------------------------------------------------*/
456 static void showfiles(struct dnode **dn, int nfiles)
458 int i, ncols, nrows, row, nc;
461 int column_width = 0; /* for STYLE_LONG and STYLE_SINGLE not used */
463 if (dn == NULL || nfiles < 1)
467 case STYLE_LONG: /* one record per line, extended info */
468 case STYLE_SINGLE: /* one record per line */
472 /* find the longest file name- use that as the column width */
473 for (i = 0; i < nfiles; i++) {
474 int len = strlen(dn[i]->name) +
475 ((list_fmt & LIST_INO) ? 8 : 0) +
476 ((list_fmt & LIST_BLOCKS) ? 5 : 0);
477 if (column_width < len)
480 column_width += tabstops;
481 ncols = (int) (terminal_width / column_width);
485 nrows = nfiles / ncols;
486 if ((nrows * ncols) < nfiles)
487 nrows++; /* round up fractionals */
493 for (row = 0; row < nrows; row++) {
494 for (nc = 0; nc < ncols; nc++) {
495 /* reach into the array based on the column and row */
496 i = (nc * nrows) + row; /* assume display by column */
497 if (disp_opts & DISP_ROWS)
498 i = (row * ncols) + nc; /* display across row */
507 nexttab = column + column_width;
508 column += list_single(dn[i]);
516 /*----------------------------------------------------------------------*/
517 static void showdirs(struct dnode **dn, int ndirs)
520 struct dnode **subdnp;
522 #ifdef CONFIG_FEATURE_LS_RECURSIVE
527 if (dn == NULL || ndirs < 1)
530 for (i = 0; i < ndirs; i++) {
531 if (disp_opts & (DISP_DIRNAME | DISP_RECURSIVE)) {
532 printf("\n%s:\n", dn[i]->fullname);
534 subdnp = list_dir(dn[i]->fullname);
535 nfiles = countfiles(subdnp);
537 /* list all files at this level */
538 #ifdef CONFIG_FEATURE_LS_SORTFILES
539 shellsort(subdnp, nfiles);
541 showfiles(subdnp, nfiles);
542 #ifdef CONFIG_FEATURE_LS_RECURSIVE
543 if (disp_opts & DISP_RECURSIVE) {
544 /* recursive- list the sub-dirs */
545 dnd = splitdnarray(subdnp, nfiles, SPLIT_SUBDIR);
546 dndirs = countsubdirs(subdnp, nfiles);
548 #ifdef CONFIG_FEATURE_LS_SORTFILES
549 shellsort(dnd, dndirs);
551 showdirs(dnd, dndirs);
552 free(dnd); /* free the array of dnode pointers to the dirs */
555 dfree(subdnp); /* free the dnodes and the fullname mem */
561 /*----------------------------------------------------------------------*/
562 static struct dnode **list_dir(const char *path)
564 struct dnode *dn, *cur, **dnp;
565 struct dirent *entry;
576 perror_msg("%s", path);
577 status = EXIT_FAILURE;
578 return (NULL); /* could not open the dir */
580 while ((entry = readdir(dir)) != NULL) {
583 /* are we going to list the file- it may be . or .. or a hidden file */
584 if (entry->d_name[0] == '.') {
585 if ((entry->d_name[1] == 0 || (
586 entry->d_name[1] == '.'
587 && entry->d_name[2] == 0))
588 && !(disp_opts & DISP_DOT))
590 if (!(disp_opts & DISP_HIDDEN))
593 fullname = concat_path_file(path, entry->d_name);
594 cur = my_stat(fullname, strrchr(fullname, '/') + 1);
603 /* now that we know how many files there are
604 ** allocate memory for an array to hold dnode pointers
608 dnp = dnalloc(nfiles);
609 for (i = 0, cur = dn; i < nfiles; i++) {
610 dnp[i] = cur; /* save pointer to node in array */
617 /*----------------------------------------------------------------------*/
618 static int list_single(struct dnode *dn)
622 #ifdef CONFIG_FEATURE_LS_USERNAME
625 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
629 #if defined(CONFIG_FEATURE_LS_FILETYPES) || defined (CONFIG_FEATURE_LS_COLOR)
634 if (dn->fullname == NULL)
637 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
638 ttime = dn->dstat.st_mtime; /* the default time */
639 if (time_fmt & TIME_ACCESS)
640 ttime = dn->dstat.st_atime;
641 if (time_fmt & TIME_CHANGE)
642 ttime = dn->dstat.st_ctime;
643 filetime = ctime(&ttime);
645 #ifdef CONFIG_FEATURE_LS_FILETYPES
646 append = append_char(dn->dstat.st_mode);
649 for (i = 0; i <= 31; i++) {
650 switch (list_fmt & (1 << i)) {
652 column += printf("%7ld ", (long int) dn->dstat.st_ino);
655 #if _FILE_OFFSET_BITS == 64
656 column += printf("%4lld ", dn->dstat.st_blocks >> 1);
658 column += printf("%4ld ", dn->dstat.st_blocks >> 1);
662 column += printf("%-10s ", (char *) mode_string(dn->dstat.st_mode));
665 column += printf("%4ld ", (long) dn->dstat.st_nlink);
668 #ifdef CONFIG_FEATURE_LS_USERNAME
669 my_getpwuid(scratch, dn->dstat.st_uid);
670 printf("%-8.8s ", scratch);
671 my_getgrgid(scratch, dn->dstat.st_gid);
672 printf("%-8.8s", scratch);
676 case LIST_ID_NUMERIC:
677 column += printf("%-8d %-8d", dn->dstat.st_uid, dn->dstat.st_gid);
681 if (S_ISBLK(dn->dstat.st_mode) || S_ISCHR(dn->dstat.st_mode)) {
682 column += printf("%4d, %3d ", (int) MAJOR(dn->dstat.st_rdev),
683 (int) MINOR(dn->dstat.st_rdev));
685 #ifdef CONFIG_FEATURE_HUMAN_READABLE
686 if (ls_disp_hr == TRUE) {
687 column += printf("%9s ",
688 make_human_readable_str(dn->dstat.st_size, 1, 0));
692 #if _FILE_OFFSET_BITS == 64
693 column += printf("%9lld ", (long long) dn->dstat.st_size);
695 column += printf("%9ld ", dn->dstat.st_size);
700 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
703 if (list_fmt & LIST_FULLTIME) {
704 printf("%24.24s ", filetime);
708 age = time(NULL) - ttime;
709 printf("%6.6s ", filetime + 4);
710 if (age < 3600L * 24 * 365 / 2 && age > -15 * 60) {
711 /* hh:mm if less than 6 months old */
712 printf("%5.5s ", filetime + 11);
714 printf(" %4.4s ", filetime + 20);
720 #ifdef CONFIG_FEATURE_LS_COLOR
722 if (show_color && !lstat(dn->fullname, &info)) {
723 printf("\033[%d;%dm", bgcolor(info.st_mode),
724 fgcolor(info.st_mode));
727 column += printf("%s", dn->name);
728 #ifdef CONFIG_FEATURE_LS_COLOR
735 if (S_ISLNK(dn->dstat.st_mode)) {
736 char *lpath = xreadlink(dn->fullname);
740 #if defined(CONFIG_FEATURE_LS_FILETYPES) || defined (CONFIG_FEATURE_LS_COLOR)
741 if (!stat(dn->fullname, &info)) {
742 append = append_char(info.st_mode);
745 #ifdef CONFIG_FEATURE_LS_COLOR
748 printf("\033[%d;%dm", bgcolor(info.st_mode),
749 fgcolor(info.st_mode));
752 column += printf("%s", lpath) + 4;
753 #ifdef CONFIG_FEATURE_LS_COLOR
762 #ifdef CONFIG_FEATURE_LS_FILETYPES
764 if (append != '\0') {
765 printf("%1c", append);
776 /*----------------------------------------------------------------------*/
777 extern int ls_main(int argc, char **argv)
779 struct dnode **dnf, **dnd;
781 struct dnode *dn, *cur, **dnp;
787 #ifdef CONFIG_FEATURE_AUTOWIDTH
788 struct winsize win = { 0, 0, 0, 0 };
791 disp_opts = DISP_NORMAL;
792 style_fmt = STYLE_AUTO;
793 list_fmt = LIST_SHORT;
794 #ifdef CONFIG_FEATURE_LS_SORTFILES
795 sort_opts = SORT_NAME;
796 sort_order = SORT_FORWARD;
798 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
801 #ifdef CONFIG_FEATURE_AUTOWIDTH
802 ioctl(fileno(stdout), TIOCGWINSZ, &win);
804 terminal_width = win.ws_col - 1;
808 #ifdef CONFIG_FEATURE_LS_COLOR
809 if (isatty(fileno(stdout)))
813 /* process options */
814 while ((opt = getopt(argc, argv, "1AaCdgilnsx"
815 #ifdef CONFIG_FEATURE_AUTOWIDTH
818 #ifdef CONFIG_FEATURE_LS_FILETYPES
821 #ifdef CONFIG_FEATURE_LS_RECURSIVE
824 #ifdef CONFIG_FEATURE_LS_SORTFILES
827 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
830 #ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
833 #ifdef CONFIG_FEATURE_HUMAN_READABLE
839 style_fmt = STYLE_SINGLE;
840 list_fmt = LIST_SHORT;
843 disp_opts |= DISP_HIDDEN;
846 disp_opts |= DISP_HIDDEN | DISP_DOT;
849 style_fmt = STYLE_COLUMNS;
850 list_fmt = LIST_SHORT;
853 disp_opts |= DISP_NOLIST;
855 case 'g': /* ignore -- for ftp servers */
858 list_fmt |= LIST_INO;
861 style_fmt = STYLE_LONG;
862 list_fmt |= LIST_LONG;
863 #ifdef CONFIG_FEATURE_HUMAN_READABLE
868 list_fmt |= LIST_ID_NUMERIC;
871 list_fmt |= LIST_BLOCKS;
874 disp_opts = DISP_ROWS;
876 #ifdef CONFIG_FEATURE_LS_FILETYPES
878 list_fmt |= LIST_FILETYPE | LIST_EXEC;
881 list_fmt |= LIST_FILETYPE;
884 #ifdef CONFIG_FEATURE_LS_RECURSIVE
886 disp_opts |= DISP_RECURSIVE;
889 #ifdef CONFIG_FEATURE_LS_SORTFILES
891 sort_order |= SORT_REVERSE;
894 sort_opts = SORT_SIZE;
897 sort_opts = SORT_VERSION;
900 sort_opts = SORT_EXT;
903 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
905 list_fmt |= LIST_FULLTIME;
908 time_fmt = TIME_CHANGE;
909 #ifdef CONFIG_FEATURE_LS_SORTFILES
910 sort_opts = SORT_CTIME;
914 time_fmt = TIME_ACCESS;
915 #ifdef CONFIG_FEATURE_LS_SORTFILES
916 sort_opts = SORT_ATIME;
920 #ifdef CONFIG_FEATURE_LS_SORTFILES
921 sort_opts = SORT_MTIME;
925 #ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
930 #ifdef CONFIG_FEATURE_AUTOWIDTH
932 tabstops = atoi(optarg);
935 terminal_width = atoi(optarg);
938 #ifdef CONFIG_FEATURE_HUMAN_READABLE
946 goto print_usage_message;
950 /* sort out which command line options take precedence */
951 #ifdef CONFIG_FEATURE_LS_RECURSIVE
952 if (disp_opts & DISP_NOLIST)
953 disp_opts &= ~DISP_RECURSIVE; /* no recurse if listing only dir */
955 #if defined (CONFIG_FEATURE_LS_TIMESTAMPS) && defined (CONFIG_FEATURE_LS_SORTFILES)
956 if (time_fmt & TIME_CHANGE)
957 sort_opts = SORT_CTIME;
958 if (time_fmt & TIME_ACCESS)
959 sort_opts = SORT_ATIME;
961 if (style_fmt != STYLE_LONG) /* only for long list */
962 list_fmt &= ~(LIST_ID_NUMERIC|LIST_FULLTIME|LIST_ID_NAME|LIST_ID_NUMERIC);
963 #ifdef CONFIG_FEATURE_LS_USERNAME
964 if (style_fmt == STYLE_LONG && (list_fmt & LIST_ID_NUMERIC))
965 list_fmt &= ~LIST_ID_NAME; /* don't list names if numeric uid */
968 /* choose a display format */
969 if (style_fmt == STYLE_AUTO)
970 style_fmt = isatty(fileno(stdout)) ? STYLE_COLUMNS : STYLE_SINGLE;
973 * when there are no cmd line args we have to supply a default "." arg.
974 * we will create a second argv array, "av" that will hold either
975 * our created "." arg, or the real cmd line args. The av array
976 * just holds the pointers- we don't move the date the pointers
979 ac = argc - optind; /* how many cmd line args are left */
981 av = (char **) xcalloc((size_t) 1, (size_t) (sizeof(char *)));
982 av[0] = xstrdup(".");
985 av = (char **) xcalloc((size_t) ac, (size_t) (sizeof(char *)));
986 for (oi = 0; oi < ac; oi++) {
987 av[oi] = argv[optind++]; /* copy pointer to real cmd line arg */
991 /* now, everything is in the av array */
993 disp_opts |= DISP_DIRNAME; /* 2 or more items? label directories */
995 /* stuff the command line file names into an dnode array */
997 for (oi = 0; oi < ac; oi++) {
998 char *fullname = xstrdup(av[oi]);
1000 cur = my_stat(fullname, fullname);
1008 /* now that we know how many files there are
1009 ** allocate memory for an array to hold dnode pointers
1011 dnp = dnalloc(nfiles);
1012 for (i = 0, cur = dn; i < nfiles; i++) {
1013 dnp[i] = cur; /* save pointer to node in array */
1018 if (disp_opts & DISP_NOLIST) {
1019 #ifdef CONFIG_FEATURE_LS_SORTFILES
1020 shellsort(dnp, nfiles);
1023 showfiles(dnp, nfiles);
1025 dnd = splitdnarray(dnp, nfiles, SPLIT_DIR);
1026 dnf = splitdnarray(dnp, nfiles, SPLIT_FILE);
1027 dndirs = countdirs(dnp, nfiles);
1028 dnfiles = nfiles - dndirs;
1030 #ifdef CONFIG_FEATURE_LS_SORTFILES
1031 shellsort(dnf, dnfiles);
1033 showfiles(dnf, dnfiles);
1036 #ifdef CONFIG_FEATURE_LS_SORTFILES
1037 shellsort(dnd, dndirs);
1039 showdirs(dnd, dndirs);
1044 print_usage_message: