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 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
10 * To achieve a small memory footprint, this version of 'ls' doesn't do any
11 * file sorting, and only has the most essential command line switches
12 * (i.e., the ones I couldn't live without :-) All features which involve
13 * linking in substantial chunks of libc can be disabled.
15 * Although I don't really want to add new features to this program to
16 * keep it small, I *am* interested to receive bug fixes and ways to make
20 * 1. ls -l of a directory doesn't give "total <blocks>" header
21 * 2. ls of a symlink to a directory doesn't list directory contents
22 * 3. hidden files can make column width too large
24 * NON-OPTIMAL BEHAVIOUR:
25 * 1. autowidth reads directories twice
26 * 2. if you do a short directory listing without filetype characters
27 * appended, there's no need to stat each one
29 * 1. requires lstat (BSD) - how do you do it without?
37 TERMINAL_WIDTH = 80, /* use 79 if terminal has linefold bug */
38 COLUMN_GAP = 2, /* includes the file type char */
40 /* what is the overall style of the listing */
41 STYLE_COLUMNS = 1 << 21, /* fill columns */
42 STYLE_LONG = 2 << 21, /* one record per line, extended info */
43 STYLE_SINGLE = 3 << 21, /* one record per line */
44 STYLE_MASK = STYLE_SINGLE,
46 /* 51306 lrwxrwxrwx 1 root root 2 May 11 01:43 /bin/view -> vi* */
47 /* what file information will be listed */
50 LIST_MODEBITS = 1 << 2,
52 LIST_ID_NAME = 1 << 4,
53 LIST_ID_NUMERIC = 1 << 5,
54 LIST_CONTEXT = 1 << 6,
57 LIST_DATE_TIME = 1 << 9,
58 LIST_FULLTIME = 1 << 10,
59 LIST_FILENAME = 1 << 11,
60 LIST_SYMLINK = 1 << 12,
61 LIST_FILETYPE = 1 << 13,
63 LIST_MASK = (LIST_EXEC << 1) - 1,
65 /* what files will be displayed */
66 DISP_DIRNAME = 1 << 15, /* 2 or more items? label directories */
67 DISP_HIDDEN = 1 << 16, /* show filenames starting with . */
68 DISP_DOT = 1 << 17, /* show . and .. */
69 DISP_NOLIST = 1 << 18, /* show directory as itself, not contents */
70 DISP_RECURSIVE = 1 << 19, /* show directory and everything below it */
71 DISP_ROWS = 1 << 20, /* print across rows */
72 DISP_MASK = ((DISP_ROWS << 1) - 1) & ~(DISP_DIRNAME - 1),
74 /* how will the files be sorted (CONFIG_FEATURE_LS_SORTFILES) */
75 SORT_FORWARD = 0, /* sort in reverse order */
76 SORT_REVERSE = 1 << 27, /* sort in reverse order */
78 SORT_NAME = 0, /* sort by file name */
79 SORT_SIZE = 1 << 28, /* sort by file size */
80 SORT_ATIME = 2 << 28, /* sort by last access time */
81 SORT_CTIME = 3 << 28, /* sort by last change time */
82 SORT_MTIME = 4 << 28, /* sort by last modification time */
83 SORT_VERSION = 5 << 28, /* sort by version */
84 SORT_EXT = 6 << 28, /* sort by file name extension */
85 SORT_DIR = 7 << 28, /* sort by file or directory */
86 SORT_MASK = (7 << 28) * ENABLE_FEATURE_LS_SORTFILES,
88 /* which of the three times will be used */
89 TIME_CHANGE = (1 << 23) * ENABLE_FEATURE_LS_TIMESTAMPS,
90 TIME_ACCESS = (1 << 24) * ENABLE_FEATURE_LS_TIMESTAMPS,
91 TIME_MASK = (3 << 23) * ENABLE_FEATURE_LS_TIMESTAMPS,
93 FOLLOW_LINKS = (1 << 25) * ENABLE_FEATURE_LS_FOLLOWLINKS,
95 LS_DISP_HR = (1 << 26) * ENABLE_FEATURE_HUMAN_READABLE,
97 LIST_SHORT = LIST_FILENAME,
98 LIST_LONG = LIST_MODEBITS | LIST_NLINKS | LIST_ID_NAME | LIST_SIZE | \
99 LIST_DATE_TIME | LIST_FILENAME | LIST_SYMLINK,
107 #define TYPEINDEX(mode) (((mode) >> 12) & 0x0f)
108 #define TYPECHAR(mode) ("0pcCd?bB-?l?s???" [TYPEINDEX(mode)])
109 #define APPCHAR(mode) ("\0|\0\0/\0\0\0\0\0@\0=\0\0\0" [TYPEINDEX(mode)])
110 #define COLOR(mode) ("\000\043\043\043\042\000\043\043"\
111 "\000\000\044\000\043\000\000\040" [TYPEINDEX(mode)])
112 #define ATTR(mode) ("\00\00\01\00\01\00\01\00"\
113 "\00\00\01\00\01\00\00\01" [TYPEINDEX(mode)])
115 /* colored LS support by JaWi, janwillem.janssen@lxtreme.nl */
116 #if ENABLE_FEATURE_LS_COLOR
117 static int show_color;
118 /* long option entry used only for --color, which has no short option
120 static const struct option ls_color_opt[] = {
121 { "color", optional_argument, NULL, 1 },
125 enum { show_color = 0 };
129 * a directory entry and its stat info are stored here
131 struct dnode { /* the basic node */
132 char *name; /* the dir entry name */
133 char *fullname; /* the dir entry name */
135 struct stat dstat; /* the file stat info */
136 USE_SELINUX(security_context_t sid;)
137 struct dnode *next; /* point at the next node */
139 typedef struct dnode dnode_t;
141 static struct dnode **list_dir(const char *);
142 static struct dnode **dnalloc(int);
143 static int list_single(struct dnode *);
145 static unsigned all_fmt;
147 #if ENABLE_FEATURE_AUTOWIDTH
148 static unsigned tabstops = COLUMN_GAP;
149 static unsigned terminal_width = TERMINAL_WIDTH;
152 tabstops = COLUMN_GAP,
153 terminal_width = TERMINAL_WIDTH,
157 static int status = EXIT_SUCCESS;
159 static struct dnode *my_stat(char *fullname, char *name)
163 USE_SELINUX(security_context_t sid = NULL;)
165 if (all_fmt & FOLLOW_LINKS) {
167 if (is_selinux_enabled()) {
168 getfilecon(fullname, &sid);
171 if (stat(fullname, &dstat)) {
172 bb_perror_msg("%s", fullname);
173 status = EXIT_FAILURE;
178 if (is_selinux_enabled()) {
179 lgetfilecon(fullname,&sid);
182 if (lstat(fullname, &dstat)) {
183 bb_perror_msg("%s", fullname);
184 status = EXIT_FAILURE;
189 cur = xmalloc(sizeof(struct dnode));
190 cur->fullname = fullname;
193 USE_SELINUX(cur->sid = sid;)
197 #if ENABLE_FEATURE_LS_COLOR
198 static char fgcolor(mode_t mode)
200 /* Check wheter the file is existing (if so, color it red!) */
203 if (S_ISREG(mode) && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
204 return COLOR(0xF000); /* File is executable ... */
208 static char bgcolor(mode_t mode)
210 if (S_ISREG(mode) && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
211 return ATTR(0xF000); /* File is executable ... */
216 #if ENABLE_FEATURE_LS_FILETYPES || ENABLE_FEATURE_LS_COLOR
217 static char append_char(mode_t mode)
219 if (!(all_fmt & LIST_FILETYPE))
223 if (!(all_fmt & LIST_EXEC))
225 if (S_ISREG(mode) && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
227 return APPCHAR(mode);
231 #define countdirs(A, B) count_dirs((A), (B), 1)
232 #define countsubdirs(A, B) count_dirs((A), (B), 0)
233 static int count_dirs(struct dnode **dn, int nfiles, int notsubdirs)
240 for (i = 0; i < nfiles; i++) {
242 if (!S_ISDIR(dn[i]->dstat.st_mode))
246 || name[0]!='.' || (name[1] && (name[1]!='.' || name[2]))
254 static int countfiles(struct dnode **dnp)
262 for (cur = dnp[0]; cur->next; cur = cur->next)
268 /* get memory to hold an array of pointers */
269 static struct dnode **dnalloc(int num)
274 return xzalloc(num * sizeof(struct dnode *));
277 #if ENABLE_FEATURE_LS_RECURSIVE
278 static void dfree(struct dnode **dnp, int nfiles)
285 for (i = 0; i < nfiles; i++) {
286 struct dnode *cur = dnp[i];
288 free(cur->fullname); /* free the filename */
289 free(cur); /* free the dnode */
291 free(dnp); /* free the array holding the dnode pointers */
294 #define dfree(...) do {} while(0)
297 static struct dnode **splitdnarray(struct dnode **dn, int nfiles, int which)
302 if (dn == NULL || nfiles < 1)
305 /* count how many dirs and regular files there are */
306 if (which == SPLIT_SUBDIR)
307 dncnt = countsubdirs(dn, nfiles);
309 dncnt = countdirs(dn, nfiles); /* assume we are looking for dirs */
310 if (which == SPLIT_FILE)
311 dncnt = nfiles - dncnt; /* looking for files */
314 /* allocate a file array and a dir array */
315 dnp = dnalloc(dncnt);
317 /* copy the entrys into the file or dir array */
318 for (d = i = 0; i < nfiles; i++) {
319 if (S_ISDIR(dn[i]->dstat.st_mode)) {
321 if (!(which & (SPLIT_DIR|SPLIT_SUBDIR)))
324 if ((which & SPLIT_DIR)
325 || name[0]!='.' || (name[1] && (name[1]!='.' || name[2]))
329 } else if (!(which & (SPLIT_DIR|SPLIT_SUBDIR))) {
336 #if ENABLE_FEATURE_LS_SORTFILES
337 static int sortcmp(const void *a, const void *b)
339 struct dnode *d1 = *(struct dnode **)a;
340 struct dnode *d2 = *(struct dnode **)b;
341 unsigned sort_opts = all_fmt & SORT_MASK;
344 dif = 0; /* assume SORT_NAME */
345 // TODO: use pre-initialized function pointer
346 // instead of branch forest
347 if (sort_opts == SORT_SIZE) {
348 dif = (int) (d2->dstat.st_size - d1->dstat.st_size);
349 } else if (sort_opts == SORT_ATIME) {
350 dif = (int) (d2->dstat.st_atime - d1->dstat.st_atime);
351 } else if (sort_opts == SORT_CTIME) {
352 dif = (int) (d2->dstat.st_ctime - d1->dstat.st_ctime);
353 } else if (sort_opts == SORT_MTIME) {
354 dif = (int) (d2->dstat.st_mtime - d1->dstat.st_mtime);
355 } else if (sort_opts == SORT_DIR) {
356 dif = S_ISDIR(d2->dstat.st_mode) - S_ISDIR(d1->dstat.st_mode);
357 /* } else if (sort_opts == SORT_VERSION) { */
358 /* } else if (sort_opts == SORT_EXT) { */
362 /* sort by name - may be a tie_breaker for time or size cmp */
363 if (ENABLE_LOCALE_SUPPORT) dif = strcoll(d1->name, d2->name);
364 else dif = strcmp(d1->name, d2->name);
367 if (all_fmt & SORT_REVERSE) {
373 static void dnsort(struct dnode **dn, int size)
375 qsort(dn, size, sizeof(*dn), sortcmp);
378 #define dnsort(dn, size) do {} while(0)
382 static void showfiles(struct dnode **dn, int nfiles)
384 int i, ncols, nrows, row, nc;
387 int column_width = 0; /* for STYLE_LONG and STYLE_SINGLE not used */
389 if (dn == NULL || nfiles < 1)
392 if (all_fmt & STYLE_LONG) {
395 /* find the longest file name, use that as the column width */
396 for (i = 0; i < nfiles; i++) {
397 int len = strlen(dn[i]->name);
398 if (column_width < len)
401 column_width += tabstops +
402 USE_SELINUX( ((all_fmt & LIST_CONTEXT) ? 33 : 0) + )
403 ((all_fmt & LIST_INO) ? 8 : 0) +
404 ((all_fmt & LIST_BLOCKS) ? 5 : 0);
405 ncols = (int) (terminal_width / column_width);
409 nrows = nfiles / ncols;
410 if (nrows * ncols < nfiles)
411 nrows++; /* round up fractionals */
417 for (row = 0; row < nrows; row++) {
418 for (nc = 0; nc < ncols; nc++) {
419 /* reach into the array based on the column and row */
420 i = (nc * nrows) + row; /* assume display by column */
421 if (all_fmt & DISP_ROWS)
422 i = (row * ncols) + nc; /* display across row */
426 printf("%*s", nexttab, "");
429 nexttab = column + column_width;
430 column += list_single(dn[i]);
439 static void showdirs(struct dnode **dn, int ndirs, int first)
442 struct dnode **subdnp;
446 if (dn == NULL || ndirs < 1)
449 for (i = 0; i < ndirs; i++) {
450 if (all_fmt & (DISP_DIRNAME | DISP_RECURSIVE)) {
454 printf("%s:\n", dn[i]->fullname);
456 subdnp = list_dir(dn[i]->fullname);
457 nfiles = countfiles(subdnp);
459 /* list all files at this level */
460 dnsort(subdnp, nfiles);
461 showfiles(subdnp, nfiles);
462 if (ENABLE_FEATURE_LS_RECURSIVE) {
463 if (all_fmt & DISP_RECURSIVE) {
464 /* recursive- list the sub-dirs */
465 dnd = splitdnarray(subdnp, nfiles, SPLIT_SUBDIR);
466 dndirs = countsubdirs(subdnp, nfiles);
469 showdirs(dnd, dndirs, 0);
470 /* free the array of dnode pointers to the dirs */
474 /* free the dnodes and the fullname mem */
475 dfree(subdnp, nfiles);
482 static struct dnode **list_dir(const char *path)
484 struct dnode *dn, *cur, **dnp;
485 struct dirent *entry;
494 dir = warn_opendir(path);
496 status = EXIT_FAILURE;
497 return NULL; /* could not open the dir */
499 while ((entry = readdir(dir)) != NULL) {
502 /* are we going to list the file- it may be . or .. or a hidden file */
503 if (entry->d_name[0] == '.') {
504 if ((entry->d_name[1] == 0 || (
505 entry->d_name[1] == '.'
506 && entry->d_name[2] == 0))
507 && !(all_fmt & DISP_DOT))
509 if (!(all_fmt & DISP_HIDDEN))
512 fullname = concat_path_file(path, entry->d_name);
513 cur = my_stat(fullname, strrchr(fullname, '/') + 1);
525 /* now that we know how many files there are
526 * allocate memory for an array to hold dnode pointers
530 dnp = dnalloc(nfiles);
531 for (i = 0, cur = dn; i < nfiles; i++) {
532 dnp[i] = cur; /* save pointer to node in array */
540 static int list_single(struct dnode *dn)
544 #if ENABLE_FEATURE_LS_USERNAME
547 #if ENABLE_FEATURE_LS_TIMESTAMPS
551 #if ENABLE_FEATURE_LS_FILETYPES || ENABLE_FEATURE_LS_COLOR
556 if (dn->fullname == NULL)
559 #if ENABLE_FEATURE_LS_TIMESTAMPS
560 ttime = dn->dstat.st_mtime; /* the default time */
561 if (all_fmt & TIME_ACCESS)
562 ttime = dn->dstat.st_atime;
563 if (all_fmt & TIME_CHANGE)
564 ttime = dn->dstat.st_ctime;
565 filetime = ctime(&ttime);
567 #if ENABLE_FEATURE_LS_FILETYPES
568 append = append_char(dn->dstat.st_mode);
571 for (i = 0; i <= 31; i++) {
572 switch (all_fmt & (1 << i)) {
574 column += printf("%7ld ", (long) dn->dstat.st_ino);
577 column += printf("%4"OFF_FMT" ", (off_t) dn->dstat.st_blocks >> 1);
580 column += printf("%-10s ", (char *) bb_mode_string(dn->dstat.st_mode));
583 column += printf("%4ld ", (long) dn->dstat.st_nlink);
586 #if ENABLE_FEATURE_LS_USERNAME
587 bb_getpwuid(scratch, dn->dstat.st_uid, sizeof(scratch));
588 printf("%-8.8s ", scratch);
589 bb_getgrgid(scratch, dn->dstat.st_gid, sizeof(scratch));
590 printf("%-8.8s", scratch);
594 case LIST_ID_NUMERIC:
595 column += printf("%-8d %-8d", dn->dstat.st_uid, dn->dstat.st_gid);
599 if (S_ISBLK(dn->dstat.st_mode) || S_ISCHR(dn->dstat.st_mode)) {
600 column += printf("%4d, %3d ", (int) major(dn->dstat.st_rdev),
601 (int) minor(dn->dstat.st_rdev));
603 if (all_fmt & LS_DISP_HR) {
604 column += printf("%9s ",
605 make_human_readable_str(dn->dstat.st_size, 1, 0));
607 column += printf("%9"OFF_FMT" ", (off_t) dn->dstat.st_size);
611 #if ENABLE_FEATURE_LS_TIMESTAMPS
613 printf("%24.24s ", filetime);
617 if ((all_fmt & LIST_FULLTIME) == 0) {
618 age = time(NULL) - ttime;
619 printf("%6.6s ", filetime + 4);
620 if (age < 3600L * 24 * 365 / 2 && age > -15 * 60) {
621 /* hh:mm if less than 6 months old */
622 printf("%5.5s ", filetime + 11);
624 printf(" %4.4s ", filetime + 20);
637 /* I assume sid initilized with NULL */
638 len = strlen(dn->sid) + 1;
639 safe_strncpy(context, dn->sid, len);
642 safe_strncpy(context, "unknown", 8);
644 printf("%-32s ", context);
645 column += MAX(33, len);
651 if (show_color && !lstat(dn->fullname, &info)) {
652 printf("\033[%d;%dm", bgcolor(info.st_mode),
653 fgcolor(info.st_mode));
655 column += printf("%s", dn->name);
661 if (S_ISLNK(dn->dstat.st_mode)) {
662 char *lpath = xreadlink(dn->fullname);
665 #if ENABLE_FEATURE_LS_FILETYPES || ENABLE_FEATURE_LS_COLOR
666 if (!stat(dn->fullname, &info)) {
667 append = append_char(info.st_mode);
672 printf("\033[%d;%dm", bgcolor(info.st_mode),
673 fgcolor(info.st_mode));
675 column += printf("%s", lpath) + 4;
682 #if ENABLE_FEATURE_LS_FILETYPES
696 /* "[-]Cadil1", POSIX mandated options, busybox always supports */
697 /* "[-]gnsx", POSIX non-mandated options, busybox always supports */
698 /* "[-]Ak" GNU options, busybox always supports */
699 /* "[-]FLRctur", POSIX mandated options, busybox optionally supports */
700 /* "[-]p", POSIX non-mandated options, busybox optionally supports */
701 /* "[-]SXvThw", GNU options, busybox optionally supports */
702 /* "[-]K", SELinux mandated options, busybox optionally supports */
703 /* "[-]e", I think we made this one up */
704 static const char ls_options[] = "Cadil1gnsxAk"
705 USE_FEATURE_LS_TIMESTAMPS("cetu")
706 USE_FEATURE_LS_SORTFILES("SXrv")
707 USE_FEATURE_LS_FILETYPES("Fp")
708 USE_FEATURE_LS_FOLLOWLINKS("L")
709 USE_FEATURE_LS_RECURSIVE("R")
710 USE_FEATURE_HUMAN_READABLE("h")
712 USE_FEATURE_AUTOWIDTH("T:w:");
715 LIST_MASK_TRIGGER = 0,
716 STYLE_MASK_TRIGGER = STYLE_MASK,
717 DISP_MASK_TRIGGER = DISP_ROWS,
718 SORT_MASK_TRIGGER = SORT_MASK,
721 static const unsigned opt_flags[] = {
722 LIST_SHORT | STYLE_COLUMNS, /* C */
723 DISP_HIDDEN | DISP_DOT, /* a */
726 LIST_LONG | STYLE_LONG, /* l - remember LS_DISP_HR in mask! */
727 LIST_SHORT | STYLE_SINGLE, /* 1 */
729 LIST_ID_NUMERIC, /* n */
733 ENABLE_SELINUX * LIST_CONTEXT, /* k (ignored if !SELINUX) */
734 #if ENABLE_FEATURE_LS_TIMESTAMPS
735 TIME_CHANGE | (ENABLE_FEATURE_LS_SORTFILES * SORT_CTIME), /* c */
736 LIST_FULLTIME, /* e */
737 ENABLE_FEATURE_LS_SORTFILES * SORT_MTIME, /* t */
738 TIME_ACCESS | (ENABLE_FEATURE_LS_SORTFILES * SORT_ATIME), /* u */
740 #if ENABLE_FEATURE_LS_SORTFILES
743 SORT_REVERSE, /* r */
744 SORT_VERSION, /* v */
746 #if ENABLE_FEATURE_LS_FILETYPES
747 LIST_FILETYPE | LIST_EXEC, /* F */
748 LIST_FILETYPE, /* p */
750 #if ENABLE_FEATURE_LS_FOLLOWLINKS
751 FOLLOW_LINKS, /* L */
753 #if ENABLE_FEATURE_LS_RECURSIVE
754 DISP_RECURSIVE, /* R */
756 #if ENABLE_FEATURE_HUMAN_READABLE
760 LIST_MODEBITS|LIST_NLINKS|LIST_CONTEXT|LIST_SIZE|LIST_DATE_TIME, /* K */
762 #if ENABLE_FEATURE_AUTOWIDTH
763 0, 0, /* T, w - ignored */
769 int ls_main(int argc, char **argv)
784 USE_FEATURE_AUTOWIDTH(char *tabstops_str = NULL;)
785 USE_FEATURE_AUTOWIDTH(char *terminal_width_str = NULL;)
786 USE_FEATURE_LS_COLOR(char *color_opt;)
788 all_fmt = LIST_SHORT |
789 (ENABLE_FEATURE_LS_SORTFILES * (SORT_NAME | SORT_FORWARD));
791 #if ENABLE_FEATURE_AUTOWIDTH
792 /* Obtain the terminal width */
793 get_terminal_width_height(STDOUT_FILENO, &terminal_width, NULL);
798 /* process options */
799 USE_FEATURE_LS_COLOR(applet_long_options = ls_color_opt;)
800 #if ENABLE_FEATURE_AUTOWIDTH
801 opt = getopt32(argc, argv, ls_options, &tabstops_str, &terminal_width_str
802 USE_FEATURE_LS_COLOR(, &color_opt));
804 tabstops = xatou(tabstops_str);
805 if (terminal_width_str)
806 terminal_width = xatou(terminal_width_str);
808 opt = getopt32(argc, argv, ls_options USE_FEATURE_LS_COLOR(, &color_opt));
810 for (i = 0; opt_flags[i] != (1U<<31); i++) {
811 if (opt & (1 << i)) {
812 unsigned flags = opt_flags[i];
814 if (flags & LIST_MASK_TRIGGER)
815 all_fmt &= ~LIST_MASK;
816 if (flags & STYLE_MASK_TRIGGER)
817 all_fmt &= ~STYLE_MASK;
818 if (flags & SORT_MASK_TRIGGER)
819 all_fmt &= ~SORT_MASK;
820 if (flags & DISP_MASK_TRIGGER)
821 all_fmt &= ~DISP_MASK;
822 if (flags & TIME_MASK)
823 all_fmt &= ~TIME_MASK;
824 if (flags & LIST_CONTEXT)
825 all_fmt |= STYLE_SINGLE;
826 if (LS_DISP_HR && opt == 'l')
827 all_fmt &= ~LS_DISP_HR;
832 #if ENABLE_FEATURE_LS_COLOR
833 /* find color bit value - last position for short getopt */
834 if (ENABLE_FEATURE_LS_COLOR_IS_DEFAULT && isatty(STDOUT_FILENO)) {
835 char *p = getenv("LS_COLORS");
836 /* LS_COLORS is unset, or (not empty && not "none") ? */
837 if (!p || (p[0] && strcmp(p, "none")))
840 if (opt & (1 << i)) { /* next flag after short options */
841 if (!color_opt || !strcmp("always", color_opt))
843 else if (color_opt && !strcmp("never", color_opt))
845 else if (color_opt && !strcmp("auto", color_opt) && isatty(STDOUT_FILENO))
850 /* sort out which command line options take precedence */
851 if (ENABLE_FEATURE_LS_RECURSIVE && (all_fmt & DISP_NOLIST))
852 all_fmt &= ~DISP_RECURSIVE; /* no recurse if listing only dir */
853 if (ENABLE_FEATURE_LS_TIMESTAMPS && ENABLE_FEATURE_LS_SORTFILES) {
854 if (all_fmt & TIME_CHANGE)
855 all_fmt = (all_fmt & ~SORT_MASK) | SORT_CTIME;
856 if (all_fmt & TIME_ACCESS)
857 all_fmt = (all_fmt & ~SORT_MASK) | SORT_ATIME;
859 if ((all_fmt & STYLE_MASK) != STYLE_LONG) /* only for long list */
860 all_fmt &= ~(LIST_ID_NUMERIC|LIST_FULLTIME|LIST_ID_NAME|LIST_ID_NUMERIC);
861 if (ENABLE_FEATURE_LS_USERNAME)
862 if ((all_fmt & STYLE_MASK) == STYLE_LONG && (all_fmt & LIST_ID_NUMERIC))
863 all_fmt &= ~LIST_ID_NAME; /* don't list names if numeric uid */
865 /* choose a display format */
866 if (!(all_fmt & STYLE_MASK))
867 all_fmt |= (isatty(STDOUT_FILENO) ? STYLE_COLUMNS : STYLE_SINGLE);
870 * when there are no cmd line args we have to supply a default "." arg.
871 * we will create a second argv array, "av" that will hold either
872 * our created "." arg, or the real cmd line args. The av array
873 * just holds the pointers- we don't move the date the pointers
876 ac = argc - optind; /* how many cmd line args are left */
878 static const char *const dotdir[] = { "." };
880 av = (char **) dotdir;
886 /* now, everything is in the av array */
888 all_fmt |= DISP_DIRNAME; /* 2 or more items? label directories */
890 /* stuff the command line file names into a dnode array */
892 for (oi = 0; oi < ac; oi++) {
893 cur = my_stat(av[oi], av[oi]);
902 /* now that we know how many files there are
903 * allocate memory for an array to hold dnode pointers
905 dnp = dnalloc(nfiles);
906 for (i = 0, cur = dn; i < nfiles; i++) {
907 dnp[i] = cur; /* save pointer to node in array */
911 if (all_fmt & DISP_NOLIST) {
914 showfiles(dnp, nfiles);
916 dnd = splitdnarray(dnp, nfiles, SPLIT_DIR);
917 dnf = splitdnarray(dnp, nfiles, SPLIT_FILE);
918 dndirs = countdirs(dnp, nfiles);
919 dnfiles = nfiles - dndirs;
921 dnsort(dnf, dnfiles);
922 showfiles(dnf, dnfiles);
923 if (ENABLE_FEATURE_CLEAN_UP)
928 showdirs(dnd, dndirs, dnfiles == 0);
929 if (ENABLE_FEATURE_CLEAN_UP)
933 if (ENABLE_FEATURE_CLEAN_UP)