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 | \
135 LIST_SIZE | LIST_DATE_TIME | LIST_FILENAME | \
137 #define LIST_ILONG (LIST_INO | LIST_LONG)
139 static const int SPLIT_DIR = 0;
140 static const int SPLIT_FILE = 1;
141 static const int SPLIT_SUBDIR = 2;
143 #define TYPEINDEX(mode) (((mode) >> 12) & 0x0f)
144 #define TYPECHAR(mode) ("0pcCd?bB-?l?s???" [TYPEINDEX(mode)])
145 #ifdef CONFIG_FEATURE_LS_FILETYPES
146 #define APPCHAR(mode) ("\0|\0\0/\0\0\0\0\0@\0=\0\0\0" [TYPEINDEX(mode)])
148 /* colored LS support by JaWi, janwillem.janssen@lxtreme.nl */
149 #ifdef CONFIG_FEATURE_LS_COLOR
150 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(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;
175 #ifdef CONFIG_FEATURE_LS_SORTFILES
176 static unsigned int sort_opts;
177 static unsigned int sort_order;
179 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
180 static unsigned int time_fmt;
182 #ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
183 static unsigned int follow_links=FALSE;
186 static unsigned short column = 0;
187 #ifdef CONFIG_FEATURE_AUTOWIDTH
188 static unsigned short terminal_width = TERMINAL_WIDTH;
189 static unsigned short column_width = COLUMN_WIDTH;
190 static unsigned short tabstops = COLUMN_GAP;
192 static unsigned short column_width = COLUMN_WIDTH;
195 static int status = EXIT_SUCCESS;
197 #ifdef CONFIG_FEATURE_HUMAN_READABLE
198 static unsigned long ls_disp_hr = 0;
201 static int my_stat(struct dnode *cur)
203 #ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
205 if (stat(cur->fullname, &cur->dstat)) {
206 perror_msg("%s", cur->fullname);
207 status = EXIT_FAILURE;
214 if (lstat(cur->fullname, &cur->dstat)) {
215 perror_msg("%s", cur->fullname);
216 status = EXIT_FAILURE;
224 static void newline(void)
232 /*----------------------------------------------------------------------*/
233 #ifdef CONFIG_FEATURE_LS_COLOR
234 static char fgcolor(mode_t mode)
236 /* Check wheter the file is existing (if so, color it red!) */
237 if ( errno == ENOENT ) {
241 if ( LIST_EXEC && S_ISREG( mode )
242 && ( mode & ( S_IXUSR | S_IXGRP | S_IXOTH ) ) )
243 return COLOR(0xF000); /* File is executable ... */
247 /*----------------------------------------------------------------------*/
248 static char bgcolor(mode_t mode)
250 if ( LIST_EXEC && S_ISREG( mode )
251 && ( mode & ( S_IXUSR | S_IXGRP | S_IXOTH ) ) )
252 return ATTR(0xF000); /* File is executable ... */
257 /*----------------------------------------------------------------------*/
258 #ifdef CONFIG_FEATURE_LS_FILETYPES
259 static char append_char(mode_t mode)
261 if ( !(list_fmt & LIST_FILETYPE))
263 if ((list_fmt & LIST_EXEC) && S_ISREG(mode)
264 && (mode & (S_IXUSR | S_IXGRP | S_IXOTH))) return '*';
265 return APPCHAR(mode);
269 /*----------------------------------------------------------------------*/
270 static void nexttabstop( void )
272 static short nexttab= 0;
283 nexttab= column + column_width + COLUMN_GAP;
286 /*----------------------------------------------------------------------*/
287 static int is_subdir(struct dnode *dn)
289 return (S_ISDIR(dn->dstat.st_mode) && strcmp(dn->name, ".") != 0 &&
290 strcmp(dn->name, "..") != 0);
293 static int countdirs(struct dnode **dn, int nfiles)
297 if (dn==NULL || nfiles < 1) return(0);
299 for (i=0; i<nfiles; i++) {
300 if (S_ISDIR(dn[i]->dstat.st_mode)) dirs++;
305 static int countsubdirs(struct dnode **dn, int nfiles)
309 if (dn == NULL || nfiles < 1) return 0;
311 for (i = 0; i < nfiles; i++)
312 if (is_subdir(dn[i]))
317 static int countfiles(struct dnode **dnp)
322 if (dnp == NULL) return(0);
324 for (cur= dnp[0]; cur->next != NULL ; cur= cur->next) nfiles++;
329 /* get memory to hold an array of pointers */
330 static struct dnode **dnalloc(int num)
334 if (num < 1) return(NULL);
336 p= (struct dnode **)xcalloc((size_t)num, (size_t)(sizeof(struct dnode *)));
340 #ifdef CONFIG_FEATURE_LS_RECURSIVE
341 static void dfree(struct dnode **dnp)
343 struct dnode *cur, *next;
345 if(dnp == NULL) return;
348 while (cur != NULL) {
349 if (cur->fullname != NULL) free(cur->fullname); /* free the filename */
351 free(cur); /* free the dnode */
354 free(dnp); /* free the array holding the dnode pointers */
358 static struct dnode **splitdnarray(struct dnode **dn, int nfiles, int which)
363 if (dn==NULL || nfiles < 1) return(NULL);
365 /* count how many dirs and regular files there are */
366 if (which == SPLIT_SUBDIR)
367 dncnt = countsubdirs(dn, nfiles);
369 dncnt= countdirs(dn, nfiles); /* assume we are looking for dirs */
370 if (which == SPLIT_FILE)
371 dncnt= nfiles - dncnt; /* looking for files */
374 /* allocate a file array and a dir array */
377 /* copy the entrys into the file or dir array */
378 for (d= i=0; i<nfiles; i++) {
379 if (which == SPLIT_DIR) {
380 if (S_ISDIR(dn[i]->dstat.st_mode)) {
382 } /* else skip the file */
383 } else if (which == SPLIT_SUBDIR) {
384 if (is_subdir(dn[i])) {
386 } /* else skip the file or dir */
388 if (!(S_ISDIR(dn[i]->dstat.st_mode))) {
390 } /* else skip the dir */
396 /*----------------------------------------------------------------------*/
397 #ifdef CONFIG_FEATURE_LS_SORTFILES
398 static int sortcmp(struct dnode *d1, struct dnode *d2)
403 if (sort_opts == SORT_SIZE) {
404 dif= (int)(d1->dstat.st_size - d2->dstat.st_size);
405 } else if (sort_opts == SORT_ATIME) {
406 dif= (int)(d1->dstat.st_atime - d2->dstat.st_atime);
407 } else if (sort_opts == SORT_CTIME) {
408 dif= (int)(d1->dstat.st_ctime - d2->dstat.st_ctime);
409 } else if (sort_opts == SORT_MTIME) {
410 dif= (int)(d1->dstat.st_mtime - d2->dstat.st_mtime);
411 } else if (sort_opts == SORT_DIR) {
412 dif= S_ISDIR(d1->dstat.st_mode) - S_ISDIR(d2->dstat.st_mode);
413 /* } else if (sort_opts == SORT_VERSION) { */
414 /* } else if (sort_opts == SORT_EXT) { */
415 } else { /* assume SORT_NAME */
419 if (dif > 0) cmp= -1;
422 /* sort by name- may be a tie_breaker for time or size cmp */
423 dif= strcmp(d1->name, d2->name);
425 if (dif < 0) cmp= -1;
428 if (sort_order == SORT_REVERSE) {
434 /*----------------------------------------------------------------------*/
435 static void shellsort(struct dnode **dn, int size)
440 /* shell short the array */
441 if(dn==NULL || size < 2) return;
443 for (gap= size/2; gap>0; gap /=2) {
444 for (i=gap; i<size; i++) {
445 for (j= i-gap; j>=0; j-=gap) {
446 if (sortcmp(dn[j], dn[j+gap]) <= 0)
448 /* they are out of order, swap them */
458 /*----------------------------------------------------------------------*/
459 static void showfiles(struct dnode **dn, int nfiles)
461 int i, ncols, nrows, row, nc;
462 #ifdef CONFIG_FEATURE_AUTOWIDTH
466 if(dn==NULL || nfiles < 1) return;
468 #ifdef CONFIG_FEATURE_AUTOWIDTH
469 /* find the longest file name- use that as the column width */
471 for (i=0; i<nfiles; i++) {
472 len= strlen(dn[i]->name) +
473 ((list_fmt & LIST_INO) ? 8 : 0) +
474 ((list_fmt & LIST_BLOCKS) ? 5 : 0)
476 if (column_width < len)
479 ncols = (int)(terminal_width / (column_width + COLUMN_GAP));
481 ncols= TERMINAL_WIDTH;
484 case STYLE_LONG: /* one record per line, extended info */
485 case STYLE_SINGLE: /* one record per line */
491 nrows = nfiles / ncols;
496 if ((nrows * ncols) < nfiles) nrows++; /* round up fractionals */
498 if (nrows > nfiles) nrows= nfiles;
499 for (row=0; row<nrows; row++) {
500 for (nc=0; nc<ncols; nc++) {
501 /* reach into the array based on the column and row */
502 i= (nc * nrows) + row; /* assume display by column */
503 if (disp_opts & DISP_ROWS)
504 i= (row * ncols) + nc; /* display across row */
514 /*----------------------------------------------------------------------*/
515 static void showdirs(struct dnode **dn, int ndirs)
518 struct dnode **subdnp;
519 #ifdef CONFIG_FEATURE_LS_RECURSIVE
524 if (dn==NULL || ndirs < 1) return;
526 for (i=0; i<ndirs; i++) {
527 if (disp_opts & (DISP_DIRNAME | DISP_RECURSIVE)) {
528 printf("\n%s:\n", dn[i]->fullname);
530 subdnp= list_dir(dn[i]->fullname);
531 nfiles= countfiles(subdnp);
533 /* list all files at this level */
534 #ifdef CONFIG_FEATURE_LS_SORTFILES
535 shellsort(subdnp, nfiles);
537 showfiles(subdnp, nfiles);
538 #ifdef CONFIG_FEATURE_LS_RECURSIVE
539 if (disp_opts & DISP_RECURSIVE) {
540 /* recursive- list the sub-dirs */
541 dnd= splitdnarray(subdnp, nfiles, SPLIT_SUBDIR);
542 dndirs= countsubdirs(subdnp, nfiles);
544 #ifdef CONFIG_FEATURE_LS_SORTFILES
545 shellsort(dnd, dndirs);
547 showdirs(dnd, dndirs);
548 free(dnd); /* free the array of dnode pointers to the dirs */
551 dfree(subdnp); /* free the dnodes and the fullname mem */
557 /*----------------------------------------------------------------------*/
558 static struct dnode **list_dir(char *path)
560 struct dnode *dn, *cur, **dnp;
561 struct dirent *entry;
565 if (path==NULL) return(NULL);
571 perror_msg("%s", path);
572 status = EXIT_FAILURE;
573 return(NULL); /* could not open the dir */
575 while ((entry = readdir(dir)) != NULL) {
576 /* are we going to list the file- it may be . or .. or a hidden file */
577 if ((strcmp(entry->d_name, ".")==0) && !(disp_opts & DISP_DOT))
579 if ((strcmp(entry->d_name, "..")==0) && !(disp_opts & DISP_DOT))
581 if ((entry->d_name[0] == '.') && !(disp_opts & DISP_HIDDEN))
583 cur= (struct dnode *)xmalloc(sizeof(struct dnode));
584 cur->fullname = concat_path_file(path, entry->d_name);
585 cur->name = cur->fullname +
586 (strlen(cur->fullname) - strlen(entry->d_name));
595 /* now that we know how many files there are
596 ** allocate memory for an array to hold dnode pointers
598 if (nfiles < 1) return(NULL);
599 dnp= dnalloc(nfiles);
600 for (i=0, cur=dn; i<nfiles; i++) {
601 dnp[i]= cur; /* save pointer to node in array */
608 /*----------------------------------------------------------------------*/
609 static int list_single(struct dnode *dn)
612 #ifdef CONFIG_FEATURE_LS_USERNAME
613 char scratch[BUFSIZ + 1];
615 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
619 #if defined (CONFIG_FEATURE_LS_FILETYPES)
622 #ifdef CONFIG_FEATURE_LS_FILETYPES
626 if (dn==NULL || dn->fullname==NULL) return(0);
628 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
629 ttime= dn->dstat.st_mtime; /* the default time */
630 if (time_fmt & TIME_ACCESS) ttime= dn->dstat.st_atime;
631 if (time_fmt & TIME_CHANGE) ttime= dn->dstat.st_ctime;
632 filetime= ctime(&ttime);
634 #ifdef CONFIG_FEATURE_LS_FILETYPES
635 append = append_char(dn->dstat.st_mode);
638 for (i=0; i<=31; i++) {
639 switch (list_fmt & (1<<i)) {
641 printf("%7ld ", (long int)dn->dstat.st_ino);
645 #ifdef CONFIG_FEATURE_HUMAN_READABLE
646 fprintf(stdout, "%6s ", make_human_readable_str(dn->dstat.st_blocks>>1,
647 KILOBYTE, (ls_disp_hr==TRUE)? 0: KILOBYTE));
649 #if _FILE_OFFSET_BITS == 64
650 printf("%4lld ", dn->dstat.st_blocks>>1);
652 printf("%4ld ", dn->dstat.st_blocks>>1);
658 printf("%-10s ", (char *)mode_string(dn->dstat.st_mode));
662 printf("%4ld ", (long)dn->dstat.st_nlink);
666 #ifdef CONFIG_FEATURE_LS_USERNAME
667 my_getpwuid(scratch, dn->dstat.st_uid);
668 printf("%-8.8s ", scratch);
669 my_getgrgid(scratch, dn->dstat.st_gid);
670 printf("%-8.8s", scratch);
674 case LIST_ID_NUMERIC:
675 printf("%-8d %-8d", dn->dstat.st_uid, dn->dstat.st_gid);
680 if (S_ISBLK(dn->dstat.st_mode) || S_ISCHR(dn->dstat.st_mode)) {
681 printf("%4d, %3d ", (int)MAJOR(dn->dstat.st_rdev), (int)MINOR(dn->dstat.st_rdev));
683 #ifdef CONFIG_FEATURE_HUMAN_READABLE
684 if (ls_disp_hr==TRUE) {
685 fprintf(stdout, "%8s ", make_human_readable_str(dn->dstat.st_size, 1, 0));
689 #if _FILE_OFFSET_BITS == 64
690 printf("%9lld ", (long long)dn->dstat.st_size);
692 printf("%9ld ", dn->dstat.st_size);
698 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
701 if (list_fmt & LIST_FULLTIME) {
702 printf("%24.24s ", filetime);
706 age = time(NULL) - ttime;
707 printf("%6.6s ", filetime+4);
708 if (age < 3600L * 24 * 365 / 2 && age > -15 * 60) {
709 /* hh:mm if less than 6 months old */
710 printf("%5.5s ", filetime+11);
712 printf(" %4.4s ", filetime+20);
718 #ifdef CONFIG_FEATURE_LS_COLOR
719 if (show_color && !lstat(dn->fullname, &info)) {
720 printf( "\033[%d;%dm", bgcolor(info.st_mode),
721 fgcolor(info.st_mode) );
724 printf("%s", dn->name);
725 #ifdef CONFIG_FEATURE_LS_COLOR
730 column += strlen(dn->name);
733 if (S_ISLNK(dn->dstat.st_mode)) {
734 char *lpath = xreadlink(dn->fullname);
737 #if defined(BB_FEATURE_LS_FILETYPES) || defined(CONFIG_FEATURE_LS_COLOR)
738 if (!stat(dn->fullname, &info)) {
739 append = append_char(info.st_mode);
742 #ifdef CONFIG_FEATURE_LS_COLOR
744 printf( "\033[%d;%dm", bgcolor(info.st_mode),
745 fgcolor(info.st_mode) );
749 #ifdef CONFIG_FEATURE_LS_COLOR
754 column += strlen(lpath) + 4;
759 #ifdef CONFIG_FEATURE_LS_FILETYPES
761 if (append != '\0') {
762 printf("%1c", append);
773 /*----------------------------------------------------------------------*/
774 extern int ls_main(int argc, char **argv)
776 struct dnode **dnf, **dnd;
778 struct dnode *dn, *cur, **dnp;
783 #ifdef CONFIG_FEATURE_AUTOWIDTH
784 struct winsize win = { 0, 0, 0, 0 };
787 disp_opts= DISP_NORMAL;
788 style_fmt= STYLE_AUTO;
789 list_fmt= LIST_SHORT;
790 #ifdef CONFIG_FEATURE_LS_SORTFILES
791 sort_opts= SORT_NAME;
792 sort_order= SORT_FORWARD;
794 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
797 #ifdef CONFIG_FEATURE_AUTOWIDTH
798 ioctl(fileno(stdout), TIOCGWINSZ, &win);
800 column_width = win.ws_row - 2;
802 terminal_width = win.ws_col - 1;
806 #ifdef CONFIG_FEATURE_LS_COLOR
807 if (isatty(fileno(stdout)))
811 /* process options */
812 while ((opt = getopt(argc, argv, "1AaCdgilnsx"
813 #ifdef CONFIG_FEATURE_AUTOWIDTH
816 #ifdef CONFIG_FEATURE_LS_FILETYPES
819 #ifdef CONFIG_FEATURE_LS_RECURSIVE
822 #ifdef CONFIG_FEATURE_LS_SORTFILES
825 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
828 #ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
831 #ifdef CONFIG_FEATURE_HUMAN_READABLE
836 case '1': style_fmt = STYLE_SINGLE; break;
837 case 'A': disp_opts |= DISP_HIDDEN; break;
838 case 'a': disp_opts |= DISP_HIDDEN | DISP_DOT; break;
839 case 'C': style_fmt = STYLE_COLUMNS; break;
840 case 'd': disp_opts |= DISP_NOLIST; break;
841 case 'g': /* ignore -- for ftp servers */ break;
842 case 'i': list_fmt |= LIST_INO; break;
844 style_fmt = STYLE_LONG;
845 list_fmt |= LIST_LONG;
846 #ifdef CONFIG_FEATURE_HUMAN_READABLE
850 case 'n': list_fmt |= LIST_ID_NUMERIC; break;
851 case 's': list_fmt |= LIST_BLOCKS; break;
852 case 'x': disp_opts = DISP_ROWS; break;
853 #ifdef CONFIG_FEATURE_LS_FILETYPES
854 case 'F': list_fmt |= LIST_FILETYPE | LIST_EXEC; break;
855 case 'p': list_fmt |= LIST_FILETYPE; break;
857 #ifdef CONFIG_FEATURE_LS_RECURSIVE
858 case 'R': disp_opts |= DISP_RECURSIVE; break;
860 #ifdef CONFIG_FEATURE_LS_SORTFILES
861 case 'r': sort_order |= SORT_REVERSE; break;
862 case 'S': sort_opts= SORT_SIZE; break;
863 case 'v': sort_opts= SORT_VERSION; break;
864 case 'X': sort_opts= SORT_EXT; break;
866 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
867 case 'e': list_fmt |= LIST_FULLTIME; break;
869 time_fmt = TIME_CHANGE;
870 #ifdef CONFIG_FEATURE_LS_SORTFILES
871 sort_opts= SORT_CTIME;
875 time_fmt = TIME_ACCESS;
876 #ifdef CONFIG_FEATURE_LS_SORTFILES
877 sort_opts= SORT_ATIME;
881 #ifdef CONFIG_FEATURE_LS_SORTFILES
882 sort_opts= SORT_MTIME;
886 #ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
887 case 'L': follow_links= TRUE; break;
889 #ifdef CONFIG_FEATURE_AUTOWIDTH
890 case 'T': tabstops= atoi(optarg); break;
891 case 'w': terminal_width= atoi(optarg); break;
893 #ifdef CONFIG_FEATURE_HUMAN_READABLE
894 case 'h': ls_disp_hr = TRUE; break;
898 goto print_usage_message;
902 /* sort out which command line options take precedence */
903 #ifdef CONFIG_FEATURE_LS_RECURSIVE
904 if (disp_opts & DISP_NOLIST)
905 disp_opts &= ~DISP_RECURSIVE; /* no recurse if listing only dir */
907 #if defined (CONFIG_FEATURE_LS_TIMESTAMPS) && defined (CONFIG_FEATURE_LS_SORTFILES)
908 if (time_fmt & TIME_CHANGE) sort_opts= SORT_CTIME;
909 if (time_fmt & TIME_ACCESS) sort_opts= SORT_ATIME;
911 if (style_fmt != STYLE_LONG)
912 list_fmt &= ~LIST_ID_NUMERIC; /* numeric uid only for long list */
913 #ifdef CONFIG_FEATURE_LS_USERNAME
914 if (style_fmt == STYLE_LONG && (list_fmt & LIST_ID_NUMERIC))
915 list_fmt &= ~LIST_ID_NAME; /* don't list names if numeric uid */
918 /* choose a display format */
919 if (style_fmt == STYLE_AUTO)
920 style_fmt = isatty(fileno(stdout)) ? STYLE_COLUMNS : STYLE_SINGLE;
923 * when there are no cmd line args we have to supply a default "." arg.
924 * we will create a second argv array, "av" that will hold either
925 * our created "." arg, or the real cmd line args. The av array
926 * just holds the pointers- we don't move the date the pointers
929 ac= argc - optind; /* how many cmd line args are left */
931 av= (char **)xcalloc((size_t)1, (size_t)(sizeof(char *)));
935 av= (char **)xcalloc((size_t)ac, (size_t)(sizeof(char *)));
936 for (oi=0 ; oi < ac; oi++) {
937 av[oi]= argv[optind++]; /* copy pointer to real cmd line arg */
941 /* now, everything is in the av array */
943 disp_opts |= DISP_DIRNAME; /* 2 or more items? label directories */
945 /* stuff the command line file names into an dnode array */
947 for (oi=0 ; oi < ac; oi++) {
948 cur= (struct dnode *)xmalloc(sizeof(struct dnode));
949 cur->fullname= xstrdup(av[oi]);
950 cur->name= cur->fullname;
958 /* now that we know how many files there are
959 ** allocate memory for an array to hold dnode pointers
961 dnp= dnalloc(nfiles);
962 for (i=0, cur=dn; i<nfiles; i++) {
963 dnp[i]= cur; /* save pointer to node in array */
968 if (disp_opts & DISP_NOLIST) {
969 #ifdef CONFIG_FEATURE_LS_SORTFILES
970 shellsort(dnp, nfiles);
972 if (nfiles > 0) showfiles(dnp, nfiles);
974 dnd= splitdnarray(dnp, nfiles, SPLIT_DIR);
975 dnf= splitdnarray(dnp, nfiles, SPLIT_FILE);
976 dndirs= countdirs(dnp, nfiles);
977 dnfiles= nfiles - dndirs;
979 #ifdef CONFIG_FEATURE_LS_SORTFILES
980 shellsort(dnf, dnfiles);
982 showfiles(dnf, dnfiles);
985 #ifdef CONFIG_FEATURE_LS_SORTFILES
986 shellsort(dnd, dndirs);
988 showdirs(dnd, dndirs);