1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1989, 1993, 1994
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Michael Fischbein.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35 #ifndef lint
36 static const char copyright[] =
37 "@(#) Copyright (c) 1989, 1993, 1994\n\
38 The Regents of the University of California. All rights reserved.\n";
39 #endif /* not lint */
40
41 #if 0
42 #ifndef lint
43 static char sccsid[] = "@(#)ls.c 8.5 (Berkeley) 4/2/94";
44 #endif /* not lint */
45 #endif
46 #include <sys/cdefs.h>
47 #include <sys/param.h>
48 #include <sys/stat.h>
49 #include <sys/ioctl.h>
50 #include <sys/mac.h>
51
52 #include <ctype.h>
53 #include <dirent.h>
54 #include <err.h>
55 #include <errno.h>
56 #include <fts.h>
57 #include <getopt.h>
58 #include <grp.h>
59 #include <inttypes.h>
60 #include <limits.h>
61 #include <locale.h>
62 #include <pwd.h>
63 #include <stdbool.h>
64 #include <stdio.h>
65 #include <stdlib.h>
66 #include <string.h>
67 #include <unistd.h>
68 #ifdef COLORLS
69 #include <termcap.h>
70 #include <signal.h>
71 #endif
72
73 #include "ls.h"
74 #include "extern.h"
75
76 /*
77 * Upward approximation of the maximum number of characters needed to
78 * represent a value of integral type t as a string, excluding the
79 * NUL terminator, with provision for a sign.
80 */
81 #define STRBUF_SIZEOF(t) (1 + CHAR_BIT * sizeof(t) / 3 + 1)
82
83 /*
84 * MAKENINES(n) turns n into (10**n)-1. This is useful for converting a width
85 * into a number that wide in decimal.
86 * XXX: Overflows are not considered.
87 */
88 #define MAKENINES(n) \
89 do { \
90 intmax_t __i; \
91 \
92 /* Use a loop as all values of n are small. */ \
93 for (__i = 1; n > 0; __i *= 10) \
94 n--; \
95 n = __i - 1; \
96 } while(0)
97
98 static void display(const FTSENT *, FTSENT *, int);
99 static int mastercmp(const FTSENT * const *, const FTSENT * const *);
100 static void traverse(int, char **, int);
101
102 #define COLOR_OPT (CHAR_MAX + 1)
103
104 static const struct option long_opts[] =
105 {
106 {"color", optional_argument, NULL, COLOR_OPT},
107 {NULL, no_argument, NULL, 0}
108 };
109
110 static void (*printfcn)(const DISPLAY *);
111 static int (*sortfcn)(const FTSENT *, const FTSENT *);
112
113 long blocksize; /* block size units */
114 int termwidth = 80; /* default terminal width */
115
116 /* flags */
117 int f_accesstime; /* use time of last access */
118 int f_birthtime; /* use time of birth */
119 int f_flags; /* show flags associated with a file */
120 int f_humanval; /* show human-readable file sizes */
121 int f_inode; /* print inode */
122 static int f_kblocks; /* print size in kilobytes */
123 int f_label; /* show MAC label */
124 static int f_listdir; /* list actual directory, not contents */
125 static int f_listdot; /* list files beginning with . */
126 int f_longform; /* long listing format */
127 static int f_noautodot; /* do not automatically enable -A for root */
128 static int f_nofollow; /* don't follow symbolic link arguments */
129 int f_nonprint; /* show unprintables as ? */
130 static int f_nosort; /* don't sort output */
131 int f_notabs; /* don't use tab-separated multi-col output */
132 static int f_numericonly; /* don't convert uid/gid to name */
133 int f_octal; /* show unprintables as \xxx */
134 int f_octal_escape; /* like f_octal but use C escapes if possible */
135 static int f_recursive; /* ls subdirectories also */
136 static int f_reversesort; /* reverse whatever sort is used */
137 static int f_verssort; /* sort names using strverscmp(3) rather than strcoll(3) */
138 int f_samesort; /* sort time and name in same direction */
139 int f_sectime; /* print full time information */
140 static int f_singlecol; /* use single column output */
141 int f_size; /* list size in short listing */
142 static int f_sizesort;
143 int f_slash; /* similar to f_type, but only for dirs */
144 int f_sortacross; /* sort across rows, not down columns */
145 int f_statustime; /* use time of last mode change */
146 static int f_stream; /* stream the output, separate with commas */
147 int f_thousands; /* show file sizes with thousands separators */
148 char *f_timeformat; /* user-specified time format */
149 static int f_timesort; /* sort by time vice name */
150 int f_type; /* add type character for non-regular files */
151 static int f_whiteout; /* show whiteout entries */
152 #ifdef COLORLS
153 int colorflag = COLORFLAG_NEVER; /* passed in colorflag */
154 int f_color; /* add type in color for non-regular files */
155 bool explicitansi; /* Explicit ANSI sequences, no termcap(5) */
156 char *ansi_bgcol; /* ANSI sequence to set background colour */
157 char *ansi_fgcol; /* ANSI sequence to set foreground colour */
158 char *ansi_coloff; /* ANSI sequence to reset colours */
159 char *attrs_off; /* ANSI sequence to turn off attributes */
160 char *enter_bold; /* ANSI sequence to set color to bold mode */
161 char *enter_underline; /* ANSI sequence to enter underline mode */
162 #endif
163
164 static int rval;
165
166 static bool
do_color_from_env(void)167 do_color_from_env(void)
168 {
169 const char *p;
170 bool doit;
171
172 doit = false;
173 p = getenv("CLICOLOR");
174 if (p == NULL) {
175 /*
176 * COLORTERM is the more standard name for this variable. We'll
177 * honor it as long as it's both set and not empty.
178 */
179 p = getenv("COLORTERM");
180 if (p != NULL && *p != '\0')
181 doit = true;
182 } else
183 doit = true;
184
185 return (doit &&
186 (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE")));
187 }
188
189 static bool
do_color(void)190 do_color(void)
191 {
192
193 #ifdef COLORLS
194 if (colorflag == COLORFLAG_NEVER)
195 return (false);
196 else if (colorflag == COLORFLAG_ALWAYS)
197 return (true);
198 #endif
199 return (do_color_from_env());
200 }
201
202 #ifdef COLORLS
203 static bool
do_color_always(const char * term)204 do_color_always(const char *term)
205 {
206
207 return (strcmp(term, "always") == 0 || strcmp(term, "yes") == 0 ||
208 strcmp(term, "force") == 0);
209 }
210
211 static bool
do_color_never(const char * term)212 do_color_never(const char *term)
213 {
214
215 return (strcmp(term, "never") == 0 || strcmp(term, "no") == 0 ||
216 strcmp(term, "none") == 0);
217 }
218
219 static bool
do_color_auto(const char * term)220 do_color_auto(const char *term)
221 {
222
223 return (strcmp(term, "auto") == 0 || strcmp(term, "tty") == 0 ||
224 strcmp(term, "if-tty") == 0);
225 }
226 #endif /* COLORLS */
227
228 int
main(int argc,char * argv[])229 main(int argc, char *argv[])
230 {
231 static char dot[] = ".", *dotav[] = {dot, NULL};
232 struct winsize win;
233 int ch, fts_options, notused;
234 char *p;
235 const char *errstr = NULL;
236 #ifdef COLORLS
237 char termcapbuf[1024]; /* termcap definition buffer */
238 char tcapbuf[512]; /* capability buffer */
239 char *bp = tcapbuf, *term;
240 #endif
241
242 (void)setlocale(LC_ALL, "");
243
244 /* Terminal defaults to -Cq, non-terminal defaults to -1. */
245 if (isatty(STDOUT_FILENO)) {
246 termwidth = 80;
247 if ((p = getenv("COLUMNS")) != NULL && *p != '\0')
248 termwidth = strtonum(p, 0, INT_MAX, &errstr);
249 else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) != -1 &&
250 win.ws_col > 0)
251 termwidth = win.ws_col;
252 f_nonprint = 1;
253 } else {
254 f_singlecol = 1;
255 /* retrieve environment variable, in case of explicit -C */
256 p = getenv("COLUMNS");
257 if (p)
258 termwidth = strtonum(p, 0, INT_MAX, &errstr);
259 }
260
261 if (errstr)
262 termwidth = 80;
263
264 fts_options = FTS_PHYSICAL;
265 if (getenv("LS_SAMESORT"))
266 f_samesort = 1;
267
268 /*
269 * For historical compatibility, we'll use our autodetection if CLICOLOR
270 * is set.
271 */
272 #ifdef COLORLS
273 if (getenv("CLICOLOR"))
274 colorflag = COLORFLAG_AUTO;
275 #endif
276 while ((ch = getopt_long(argc, argv,
277 "+1ABCD:FGHILPRSTUWXZabcdfghiklmnopqrstuvwxy,", long_opts,
278 NULL)) != -1) {
279 switch (ch) {
280 /*
281 * The -1, -C, -x and -l options all override each other so
282 * shell aliasing works right.
283 */
284 case '1':
285 f_singlecol = 1;
286 f_longform = 0;
287 f_stream = 0;
288 break;
289 case 'C':
290 f_sortacross = f_longform = f_singlecol = 0;
291 break;
292 case 'l':
293 f_longform = 1;
294 f_singlecol = 0;
295 f_stream = 0;
296 break;
297 case 'x':
298 f_sortacross = 1;
299 f_longform = 0;
300 f_singlecol = 0;
301 break;
302 /* The -c, -u, and -U options override each other. */
303 case 'c':
304 f_statustime = 1;
305 f_accesstime = 0;
306 f_birthtime = 0;
307 break;
308 case 'u':
309 f_accesstime = 1;
310 f_statustime = 0;
311 f_birthtime = 0;
312 break;
313 case 'U':
314 f_birthtime = 1;
315 f_accesstime = 0;
316 f_statustime = 0;
317 break;
318 case 'f':
319 f_nosort = 1;
320 /* FALLTHROUGH */
321 case 'a':
322 fts_options |= FTS_SEEDOT;
323 /* FALLTHROUGH */
324 case 'A':
325 f_listdot = 1;
326 break;
327 /* The -t and -S options override each other. */
328 case 'S':
329 f_sizesort = 1;
330 f_timesort = 0;
331 break;
332 case 't':
333 f_timesort = 1;
334 f_sizesort = 0;
335 break;
336 /* Other flags. Please keep alphabetic. */
337 case ',':
338 f_thousands = 1;
339 break;
340 case 'B':
341 f_nonprint = 0;
342 f_octal = 1;
343 f_octal_escape = 0;
344 break;
345 case 'D':
346 f_timeformat = optarg;
347 break;
348 case 'F':
349 f_type = 1;
350 f_slash = 0;
351 break;
352 case 'G':
353 /*
354 * We both set CLICOLOR here and set colorflag to
355 * COLORFLAG_AUTO, because -G should not force color if
356 * stdout isn't a tty.
357 */
358 setenv("CLICOLOR", "", 1);
359 #ifdef COLORLS
360 colorflag = COLORFLAG_AUTO;
361 #endif
362 break;
363 case 'H':
364 fts_options |= FTS_COMFOLLOW;
365 f_nofollow = 0;
366 break;
367 case 'I':
368 f_noautodot = 1;
369 break;
370 case 'L':
371 fts_options &= ~FTS_PHYSICAL;
372 fts_options |= FTS_LOGICAL;
373 f_nofollow = 0;
374 break;
375 case 'P':
376 fts_options &= ~FTS_COMFOLLOW;
377 fts_options &= ~FTS_LOGICAL;
378 fts_options |= FTS_PHYSICAL;
379 f_nofollow = 1;
380 break;
381 case 'R':
382 f_recursive = 1;
383 break;
384 case 'T':
385 f_sectime = 1;
386 break;
387 case 'W':
388 f_whiteout = 1;
389 break;
390 case 'Z':
391 f_label = 1;
392 break;
393 case 'b':
394 f_nonprint = 0;
395 f_octal = 0;
396 f_octal_escape = 1;
397 break;
398 /* The -d option turns off the -R option. */
399 case 'd':
400 f_listdir = 1;
401 f_recursive = 0;
402 break;
403 case 'g': /* Compatibility with 4.3BSD. */
404 break;
405 case 'h':
406 f_humanval = 1;
407 break;
408 case 'i':
409 f_inode = 1;
410 break;
411 case 'k':
412 f_humanval = 0;
413 f_kblocks = 1;
414 break;
415 case 'm':
416 f_stream = 1;
417 f_singlecol = 0;
418 f_longform = 0;
419 break;
420 case 'n':
421 f_numericonly = 1;
422 break;
423 case 'o':
424 f_flags = 1;
425 break;
426 case 'p':
427 f_slash = 1;
428 f_type = 1;
429 break;
430 case 'q':
431 f_nonprint = 1;
432 f_octal = 0;
433 f_octal_escape = 0;
434 break;
435 case 'r':
436 f_reversesort = 1;
437 break;
438 case 's':
439 f_size = 1;
440 break;
441 case 'v':
442 f_verssort = 1;
443 break;
444 case 'w':
445 f_nonprint = 0;
446 f_octal = 0;
447 f_octal_escape = 0;
448 break;
449 case 'y':
450 f_samesort = 1;
451 break;
452 case COLOR_OPT:
453 #ifdef COLORLS
454 if (optarg == NULL || do_color_always(optarg))
455 colorflag = COLORFLAG_ALWAYS;
456 else if (do_color_auto(optarg))
457 colorflag = COLORFLAG_AUTO;
458 else if (do_color_never(optarg))
459 colorflag = COLORFLAG_NEVER;
460 else
461 errx(2, "unsupported --color value '%s' (must be always, auto, or never)",
462 optarg);
463 break;
464 #else
465 warnx("color support not compiled in");
466 #endif
467 default:
468 case '?':
469 usage();
470 }
471 }
472 argc -= optind;
473 argv += optind;
474
475 /* Root is -A automatically unless -I. */
476 if (!f_listdot && getuid() == (uid_t)0 && !f_noautodot)
477 f_listdot = 1;
478
479 /*
480 * Enabling of colours is conditional on the environment in conjunction
481 * with the --color and -G arguments, if supplied.
482 */
483 if (do_color()) {
484 #ifdef COLORLS
485 if ((term = getenv("TERM")) != NULL &&
486 tgetent(termcapbuf, term) == 1) {
487 ansi_fgcol = tgetstr("AF", &bp);
488 ansi_bgcol = tgetstr("AB", &bp);
489 attrs_off = tgetstr("me", &bp);
490 enter_bold = tgetstr("md", &bp);
491 enter_underline = tgetstr("us", &bp);
492
493 /* To switch colours off use 'op' if
494 * available, otherwise use 'oc', or
495 * don't do colours at all. */
496 ansi_coloff = tgetstr("op", &bp);
497 if (!ansi_coloff)
498 ansi_coloff = tgetstr("oc", &bp);
499 if (ansi_fgcol && ansi_bgcol && ansi_coloff)
500 f_color = 1;
501 } else if (colorflag == COLORFLAG_ALWAYS) {
502 /*
503 * If we're *always* doing color but we don't have
504 * a functional TERM supplied, we'll fallback to
505 * outputting raw ANSI sequences.
506 */
507 f_color = 1;
508 explicitansi = true;
509 }
510 #endif /*COLORLS*/
511 }
512
513 #ifdef COLORLS
514 if (f_color) {
515 /*
516 * We can't put tabs and color sequences together:
517 * column number will be incremented incorrectly
518 * for "stty oxtabs" mode.
519 */
520 f_notabs = 1;
521 (void)signal(SIGINT, colorquit);
522 (void)signal(SIGQUIT, colorquit);
523 parsecolors(getenv("LSCOLORS"));
524 }
525 #endif
526
527 /*
528 * If not -F, -i, -l, -s, -S or -t options, don't require stat
529 * information, unless in color mode in which case we do
530 * need this to determine which colors to display.
531 */
532 if (!f_inode && !f_longform && !f_size && !f_timesort &&
533 !f_sizesort && !f_type
534 #ifdef COLORLS
535 && !f_color
536 #endif
537 )
538 fts_options |= FTS_NOSTAT;
539
540 /*
541 * If not -F, -P, -d or -l options, follow any symbolic links listed on
542 * the command line, unless in color mode in which case we need to
543 * distinguish file type for a symbolic link itself and its target.
544 */
545 if (!f_nofollow && !f_longform && !f_listdir && (!f_type || f_slash)
546 #ifdef COLORLS
547 && !f_color
548 #endif
549 )
550 fts_options |= FTS_COMFOLLOW;
551
552 /*
553 * If -W, show whiteout entries
554 */
555 #ifdef FTS_WHITEOUT
556 if (f_whiteout)
557 fts_options |= FTS_WHITEOUT;
558 #endif
559
560 /* If -i, -l or -s, figure out block size. */
561 if (f_inode || f_longform || f_size) {
562 if (f_kblocks)
563 blocksize = 2;
564 else {
565 (void)getbsize(¬used, &blocksize);
566 blocksize /= 512;
567 }
568 }
569 /* Select a sort function. */
570 if (f_reversesort) {
571 if (f_sizesort)
572 sortfcn = revsizecmp;
573 else if (f_verssort)
574 sortfcn = revverscmp;
575 else if (!f_timesort)
576 sortfcn = revnamecmp;
577 else if (f_accesstime)
578 sortfcn = revacccmp;
579 else if (f_birthtime)
580 sortfcn = revbirthcmp;
581 else if (f_statustime)
582 sortfcn = revstatcmp;
583 else /* Use modification time. */
584 sortfcn = revmodcmp;
585 } else {
586 if (f_sizesort)
587 sortfcn = sizecmp;
588 else if (f_verssort)
589 sortfcn = verscmp;
590 else if (!f_timesort)
591 sortfcn = namecmp;
592 else if (f_accesstime)
593 sortfcn = acccmp;
594 else if (f_birthtime)
595 sortfcn = birthcmp;
596 else if (f_statustime)
597 sortfcn = statcmp;
598 else /* Use modification time. */
599 sortfcn = modcmp;
600 }
601
602 /* Select a print function. */
603 if (f_singlecol)
604 printfcn = printscol;
605 else if (f_longform)
606 printfcn = printlong;
607 else if (f_stream)
608 printfcn = printstream;
609 else
610 printfcn = printcol;
611
612 if (argc)
613 traverse(argc, argv, fts_options);
614 else
615 traverse(1, dotav, fts_options);
616 exit(rval);
617 }
618
619 static int output; /* If anything output. */
620
621 /*
622 * Traverse() walks the logical directory structure specified by the argv list
623 * in the order specified by the mastercmp() comparison function. During the
624 * traversal it passes linked lists of structures to display() which represent
625 * a superset (may be exact set) of the files to be displayed.
626 */
627 static void
traverse(int argc,char * argv[],int options)628 traverse(int argc, char *argv[], int options)
629 {
630 FTS *ftsp;
631 FTSENT *p, *chp;
632 int ch_options;
633
634 if ((ftsp =
635 fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL)
636 err(1, "fts_open");
637
638 /*
639 * We ignore errors from fts_children here since they will be
640 * replicated and signalled on the next call to fts_read() below.
641 */
642 chp = fts_children(ftsp, 0);
643 if (chp != NULL)
644 display(NULL, chp, options);
645 if (f_listdir)
646 return;
647
648 /*
649 * If not recursing down this tree and don't need stat info, just get
650 * the names.
651 */
652 ch_options = !f_recursive && !f_label &&
653 options & FTS_NOSTAT ? FTS_NAMEONLY : 0;
654
655 while (errno = 0, (p = fts_read(ftsp)) != NULL)
656 switch (p->fts_info) {
657 case FTS_DC:
658 warnx("%s: directory causes a cycle", p->fts_name);
659 break;
660 case FTS_DNR:
661 case FTS_ERR:
662 warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
663 rval = 1;
664 break;
665 case FTS_D:
666 if (p->fts_level != FTS_ROOTLEVEL &&
667 p->fts_name[0] == '.' && !f_listdot)
668 break;
669
670 /*
671 * If already output something, put out a newline as
672 * a separator. If multiple arguments, precede each
673 * directory with its name.
674 */
675 if (output) {
676 putchar('\n');
677 (void)printname(p->fts_path);
678 puts(":");
679 } else if (argc > 1) {
680 (void)printname(p->fts_path);
681 puts(":");
682 output = 1;
683 }
684 chp = fts_children(ftsp, ch_options);
685 display(p, chp, options);
686
687 if (!f_recursive && chp != NULL)
688 (void)fts_set(ftsp, p, FTS_SKIP);
689 break;
690 default:
691 break;
692 }
693 if (errno)
694 err(1, "fts_read");
695 }
696
697 /*
698 * Display() takes a linked list of FTSENT structures and passes the list
699 * along with any other necessary information to the print function. P
700 * points to the parent directory of the display list.
701 */
702 static void
display(const FTSENT * p,FTSENT * list,int options)703 display(const FTSENT *p, FTSENT *list, int options)
704 {
705 struct stat *sp;
706 DISPLAY d;
707 FTSENT *cur;
708 NAMES *np;
709 off_t maxsize;
710 long maxblock;
711 uintmax_t maxinode;
712 u_long btotal, labelstrlen, maxlen, maxnlink;
713 u_long maxlabelstr;
714 u_int sizelen;
715 int maxflags;
716 gid_t maxgroup;
717 uid_t maxuser;
718 size_t flen, ulen, glen;
719 char *initmax;
720 int entries, needstats;
721 const char *user, *group;
722 char *flags, *labelstr = NULL;
723 char ngroup[STRBUF_SIZEOF(uid_t) + 1];
724 char nuser[STRBUF_SIZEOF(gid_t) + 1];
725 u_long width[9];
726 int i;
727
728 needstats = f_inode || f_longform || f_size;
729 flen = 0;
730 btotal = 0;
731
732 #define LS_COLWIDTHS_FIELDS 9
733 initmax = getenv("LS_COLWIDTHS");
734
735 for (i = 0 ; i < LS_COLWIDTHS_FIELDS; i++)
736 width[i] = 0;
737
738 if (initmax != NULL) {
739 char *endp;
740
741 for (i = 0; i < LS_COLWIDTHS_FIELDS && *initmax != '\0'; i++) {
742 if (*initmax == ':') {
743 width[i] = 0;
744 } else {
745 width[i] = strtoul(initmax, &endp, 10);
746 initmax = endp;
747 while (isspace(*initmax))
748 initmax++;
749 if (*initmax != ':')
750 break;
751 initmax++;
752 }
753 }
754 if (i < LS_COLWIDTHS_FIELDS)
755 #ifdef COLORLS
756 if (!f_color)
757 #endif
758 f_notabs = 0;
759 }
760
761 /* Fields match -lios order. New ones should be added at the end. */
762 maxinode = width[0];
763 maxblock = width[1];
764 maxnlink = width[2];
765 maxuser = width[3];
766 maxgroup = width[4];
767 maxflags = width[5];
768 maxsize = width[6];
769 maxlen = width[7];
770 maxlabelstr = width[8];
771
772 MAKENINES(maxinode);
773 MAKENINES(maxblock);
774 MAKENINES(maxnlink);
775 MAKENINES(maxsize);
776
777 d.s_size = 0;
778 sizelen = 0;
779 flags = NULL;
780 for (cur = list, entries = 0; cur; cur = cur->fts_link) {
781 if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) {
782 warnx("%s: %s",
783 cur->fts_name, strerror(cur->fts_errno));
784 cur->fts_number = NO_PRINT;
785 rval = 1;
786 continue;
787 }
788 /*
789 * P is NULL if list is the argv list, to which different rules
790 * apply.
791 */
792 if (p == NULL) {
793 /* Directories will be displayed later. */
794 if (cur->fts_info == FTS_D && !f_listdir) {
795 cur->fts_number = NO_PRINT;
796 continue;
797 }
798 } else {
799 /* Only display dot file if -a/-A set. */
800 if (cur->fts_name[0] == '.' && !f_listdot) {
801 cur->fts_number = NO_PRINT;
802 continue;
803 }
804 }
805 if (cur->fts_namelen > maxlen)
806 maxlen = cur->fts_namelen;
807 if (f_octal || f_octal_escape) {
808 u_long t = len_octal(cur->fts_name, cur->fts_namelen);
809
810 if (t > maxlen)
811 maxlen = t;
812 }
813 if (needstats) {
814 sp = cur->fts_statp;
815 if (sp->st_blocks > maxblock)
816 maxblock = sp->st_blocks;
817 if (sp->st_ino > maxinode)
818 maxinode = sp->st_ino;
819 if (sp->st_nlink > maxnlink)
820 maxnlink = sp->st_nlink;
821 if (sp->st_size > maxsize)
822 maxsize = sp->st_size;
823
824 btotal += sp->st_blocks;
825 if (f_longform) {
826 if (f_numericonly) {
827 (void)snprintf(nuser, sizeof(nuser),
828 "%u", sp->st_uid);
829 (void)snprintf(ngroup, sizeof(ngroup),
830 "%u", sp->st_gid);
831 user = nuser;
832 group = ngroup;
833 } else {
834 user = user_from_uid(sp->st_uid, 0);
835 /*
836 * user_from_uid(..., 0) only returns
837 * NULL in OOM conditions. We could
838 * format the uid here, but (1) in
839 * general ls(1) exits on OOM, and (2)
840 * there is another allocation/exit
841 * path directly below, which will
842 * likely exit anyway.
843 */
844 if (user == NULL)
845 err(1, "user_from_uid");
846 group = group_from_gid(sp->st_gid, 0);
847 /* Ditto. */
848 if (group == NULL)
849 err(1, "group_from_gid");
850 }
851 if ((ulen = strlen(user)) > maxuser)
852 maxuser = ulen;
853 if ((glen = strlen(group)) > maxgroup)
854 maxgroup = glen;
855 if (f_flags) {
856 flags = fflagstostr(sp->st_flags);
857 if (flags != NULL && *flags == '\0') {
858 free(flags);
859 flags = strdup("-");
860 }
861 if (flags == NULL)
862 err(1, "fflagstostr");
863 flen = strlen(flags);
864 if (flen > (size_t)maxflags)
865 maxflags = flen;
866 } else
867 flen = 0;
868 labelstr = NULL;
869 if (f_label) {
870 char name[PATH_MAX + 1];
871 mac_t label;
872 int error;
873
874 error = mac_prepare_file_label(&label);
875 if (error == -1) {
876 warn("MAC label for %s/%s",
877 cur->fts_parent->fts_path,
878 cur->fts_name);
879 goto label_out;
880 }
881
882 if (cur->fts_level == FTS_ROOTLEVEL)
883 snprintf(name, sizeof(name),
884 "%s", cur->fts_name);
885 else
886 snprintf(name, sizeof(name),
887 "%s/%s", cur->fts_parent->
888 fts_accpath, cur->fts_name);
889
890 if (options & FTS_LOGICAL)
891 error = mac_get_file(name,
892 label);
893 else
894 error = mac_get_link(name,
895 label);
896 if (error == -1) {
897 warn("MAC label for %s/%s",
898 cur->fts_parent->fts_path,
899 cur->fts_name);
900 mac_free(label);
901 goto label_out;
902 }
903
904 error = mac_to_text(label,
905 &labelstr);
906 if (error == -1) {
907 warn("MAC label for %s/%s",
908 cur->fts_parent->fts_path,
909 cur->fts_name);
910 mac_free(label);
911 goto label_out;
912 }
913 mac_free(label);
914 label_out:
915 if (labelstr == NULL)
916 labelstr = strdup("-");
917 labelstrlen = strlen(labelstr);
918 if (labelstrlen > maxlabelstr)
919 maxlabelstr = labelstrlen;
920 } else
921 labelstrlen = 0;
922
923 if ((np = malloc(sizeof(NAMES) + labelstrlen +
924 ulen + glen + flen + 4)) == NULL)
925 err(1, "malloc");
926
927 np->user = &np->data[0];
928 (void)strcpy(np->user, user);
929 np->group = &np->data[ulen + 1];
930 (void)strcpy(np->group, group);
931
932 if (S_ISCHR(sp->st_mode) ||
933 S_ISBLK(sp->st_mode)) {
934 sizelen = snprintf(NULL, 0,
935 "%#jx", (uintmax_t)sp->st_rdev);
936 if (d.s_size < sizelen)
937 d.s_size = sizelen;
938 }
939
940 if (f_flags) {
941 np->flags = &np->data[ulen + glen + 2];
942 (void)strcpy(np->flags, flags);
943 free(flags);
944 }
945 if (f_label) {
946 np->label = &np->data[ulen + glen + 2
947 + (f_flags ? flen + 1 : 0)];
948 (void)strcpy(np->label, labelstr);
949 free(labelstr);
950 }
951 cur->fts_pointer = np;
952 }
953 }
954 ++entries;
955 }
956
957 /*
958 * If there are no entries to display, we normally stop right
959 * here. However, we must continue if we have to display the
960 * total block count. In this case, we display the total only
961 * on the second (p != NULL) pass.
962 */
963 if (!entries && (!(f_longform || f_size) || p == NULL))
964 return;
965
966 d.list = list;
967 d.entries = entries;
968 d.maxlen = maxlen;
969 if (needstats) {
970 d.btotal = btotal;
971 d.s_block = snprintf(NULL, 0, f_thousands ? "%'ld" : "%ld",
972 howmany(maxblock, blocksize));
973 d.s_flags = maxflags;
974 d.s_label = maxlabelstr;
975 d.s_group = maxgroup;
976 d.s_inode = snprintf(NULL, 0, "%ju", maxinode);
977 d.s_nlink = snprintf(NULL, 0, "%lu", maxnlink);
978 sizelen = f_humanval ? HUMANVALSTR_LEN :
979 snprintf(NULL, 0, "%ju", maxsize);
980 if (d.s_size < sizelen)
981 d.s_size = sizelen;
982 d.s_user = maxuser;
983 }
984 if (f_thousands) /* make space for commas */
985 d.s_size += (d.s_size - 1) / 3;
986 printfcn(&d);
987 output = 1;
988
989 if (f_longform)
990 for (cur = list; cur; cur = cur->fts_link)
991 free(cur->fts_pointer);
992 }
993
994 /*
995 * Ordering for mastercmp:
996 * If ordering the argv (fts_level = FTS_ROOTLEVEL) return non-directories
997 * as larger than directories. Within either group, use the sort function.
998 * All other levels use the sort function. Error entries remain unsorted.
999 */
1000 static int
mastercmp(const FTSENT * const * a,const FTSENT * const * b)1001 mastercmp(const FTSENT * const *a, const FTSENT * const *b)
1002 {
1003 int a_info, b_info;
1004
1005 a_info = (*a)->fts_info;
1006 if (a_info == FTS_ERR)
1007 return (0);
1008 b_info = (*b)->fts_info;
1009 if (b_info == FTS_ERR)
1010 return (0);
1011
1012 if (a_info == FTS_NS || b_info == FTS_NS)
1013 return (namecmp(*a, *b));
1014
1015 if (a_info != b_info &&
1016 (*a)->fts_level == FTS_ROOTLEVEL && !f_listdir) {
1017 if (a_info == FTS_D)
1018 return (1);
1019 if (b_info == FTS_D)
1020 return (-1);
1021 }
1022 return (sortfcn(*a, *b));
1023 }
1024