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 #include <sys/param.h>
36 #include <sys/stat.h>
37 #include <sys/ioctl.h>
38 #include <sys/mac.h>
39
40 #include <ctype.h>
41 #include <dirent.h>
42 #include <err.h>
43 #include <errno.h>
44 #include <fts.h>
45 #include <getopt.h>
46 #include <grp.h>
47 #include <inttypes.h>
48 #include <limits.h>
49 #include <locale.h>
50 #include <pwd.h>
51 #include <stdbool.h>
52 #include <stdio.h>
53 #include <stdlib.h>
54 #include <string.h>
55 #include <unistd.h>
56 #ifdef COLORLS
57 #include <termcap.h>
58 #include <signal.h>
59 #endif
60
61 #include "ls.h"
62 #include "extern.h"
63
64 /*
65 * Upward approximation of the maximum number of characters needed to
66 * represent a value of integral type t as a string, excluding the
67 * NUL terminator, with provision for a sign.
68 */
69 #define STRBUF_SIZEOF(t) (1 + CHAR_BIT * sizeof(t) / 3 + 1)
70
71 /*
72 * MAKENINES(n) turns n into (10**n)-1. This is useful for converting a width
73 * into a number that wide in decimal.
74 * XXX: Overflows are not considered.
75 */
76 #define MAKENINES(n) \
77 do { \
78 intmax_t __i; \
79 \
80 /* Use a loop as all values of n are small. */ \
81 for (__i = 1; n > 0; __i *= 10) \
82 n--; \
83 n = __i - 1; \
84 } while(0)
85
86 static void display(const FTSENT *, FTSENT *, int);
87 static int mastercmp(const FTSENT * const *, const FTSENT * const *);
88 static void traverse(int, char **, int);
89
90 #define COLOR_OPT (CHAR_MAX + 1)
91
92 static const struct option long_opts[] =
93 {
94 {"color", optional_argument, NULL, COLOR_OPT},
95 {NULL, no_argument, NULL, 0}
96 };
97
98 static void (*printfcn)(const DISPLAY *);
99 static int (*sortfcn)(const FTSENT *, const FTSENT *);
100
101 long blocksize; /* block size units */
102 int termwidth = 80; /* default terminal width */
103
104 /* flags */
105 int f_accesstime; /* use time of last access */
106 int f_birthtime; /* use time of birth */
107 int f_flags; /* show flags associated with a file */
108 int f_humanval; /* show human-readable file sizes */
109 int f_inode; /* print inode */
110 static int f_kblocks; /* print size in kilobytes */
111 int f_label; /* show MAC label */
112 static int f_listdir; /* list actual directory, not contents */
113 static int f_listdot; /* list files beginning with . */
114 int f_longform; /* long listing format */
115 static int f_noautodot; /* do not automatically enable -A for root */
116 static int f_nofollow; /* don't follow symbolic link arguments */
117 int f_nonprint; /* show unprintables as ? */
118 static int f_nosort; /* don't sort output */
119 int f_notabs; /* don't use tab-separated multi-col output */
120 static int f_numericonly; /* don't convert uid/gid to name */
121 int f_octal; /* show unprintables as \xxx */
122 int f_octal_escape; /* like f_octal but use C escapes if possible */
123 static int f_recursive; /* ls subdirectories also */
124 static int f_reversesort; /* reverse whatever sort is used */
125 static int f_verssort; /* sort names using strverscmp(3) rather than strcoll(3) */
126 int f_samesort; /* sort time and name in same direction */
127 int f_sectime; /* print full time information */
128 static int f_singlecol; /* use single column output */
129 int f_size; /* list size in short listing */
130 static int f_sizesort;
131 int f_slash; /* similar to f_type, but only for dirs */
132 int f_sortacross; /* sort across rows, not down columns */
133 int f_sowner; /* disable showing owner's name */
134 int f_statustime; /* use time of last mode change */
135 static int f_stream; /* stream the output, separate with commas */
136 int f_thousands; /* show file sizes with thousands separators */
137 char *f_timeformat; /* user-specified time format */
138 static int f_timesort; /* sort by time vice name */
139 int f_type; /* add type character for non-regular files */
140 static int f_whiteout; /* show whiteout entries */
141 #ifdef COLORLS
142 int colorflag = COLORFLAG_NEVER; /* passed in colorflag */
143 int f_color; /* add type in color for non-regular files */
144 bool explicitansi; /* Explicit ANSI sequences, no termcap(5) */
145 char *ansi_bgcol; /* ANSI sequence to set background colour */
146 char *ansi_fgcol; /* ANSI sequence to set foreground colour */
147 char *ansi_coloff; /* ANSI sequence to reset colours */
148 char *attrs_off; /* ANSI sequence to turn off attributes */
149 char *enter_bold; /* ANSI sequence to set color to bold mode */
150 char *enter_underline; /* ANSI sequence to enter underline mode */
151 #endif
152
153 static int rval;
154
155 static bool
do_color_from_env(void)156 do_color_from_env(void)
157 {
158 const char *p;
159 bool doit;
160
161 doit = false;
162 p = getenv("CLICOLOR");
163 if (p == NULL) {
164 /*
165 * COLORTERM is the more standard name for this variable. We'll
166 * honor it as long as it's both set and not empty.
167 */
168 p = getenv("COLORTERM");
169 if (p != NULL && *p != '\0')
170 doit = true;
171 } else
172 doit = true;
173
174 return (doit &&
175 (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE")));
176 }
177
178 static bool
do_color(void)179 do_color(void)
180 {
181
182 #ifdef COLORLS
183 if (colorflag == COLORFLAG_NEVER)
184 return (false);
185 else if (colorflag == COLORFLAG_ALWAYS)
186 return (true);
187 #endif
188 return (do_color_from_env());
189 }
190
191 #ifdef COLORLS
192 static bool
do_color_always(const char * term)193 do_color_always(const char *term)
194 {
195
196 return (strcmp(term, "always") == 0 || strcmp(term, "yes") == 0 ||
197 strcmp(term, "force") == 0);
198 }
199
200 static bool
do_color_never(const char * term)201 do_color_never(const char *term)
202 {
203
204 return (strcmp(term, "never") == 0 || strcmp(term, "no") == 0 ||
205 strcmp(term, "none") == 0);
206 }
207
208 static bool
do_color_auto(const char * term)209 do_color_auto(const char *term)
210 {
211
212 return (strcmp(term, "auto") == 0 || strcmp(term, "tty") == 0 ||
213 strcmp(term, "if-tty") == 0);
214 }
215 #endif /* COLORLS */
216
217 int
main(int argc,char * argv[])218 main(int argc, char *argv[])
219 {
220 static char dot[] = ".", *dotav[] = {dot, NULL};
221 struct winsize win;
222 int ch, fts_options, notused;
223 char *p;
224 const char *errstr = NULL;
225 #ifdef COLORLS
226 char termcapbuf[1024]; /* termcap definition buffer */
227 char tcapbuf[512]; /* capability buffer */
228 char *bp = tcapbuf, *term;
229 #endif
230
231 (void)setlocale(LC_ALL, "");
232
233 /* Terminal defaults to -Cq, non-terminal defaults to -1. */
234 if (isatty(STDOUT_FILENO)) {
235 termwidth = 80;
236 if ((p = getenv("COLUMNS")) != NULL && *p != '\0')
237 termwidth = strtonum(p, 0, INT_MAX, &errstr);
238 else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) != -1 &&
239 win.ws_col > 0)
240 termwidth = win.ws_col;
241 f_nonprint = 1;
242 } else {
243 f_singlecol = 1;
244 /* retrieve environment variable, in case of explicit -C */
245 p = getenv("COLUMNS");
246 if (p)
247 termwidth = strtonum(p, 0, INT_MAX, &errstr);
248 }
249
250 if (errstr)
251 termwidth = 80;
252
253 fts_options = FTS_PHYSICAL;
254 if (getenv("LS_SAMESORT"))
255 f_samesort = 1;
256
257 /*
258 * For historical compatibility, we'll use our autodetection if CLICOLOR
259 * is set.
260 */
261 #ifdef COLORLS
262 if (getenv("CLICOLOR"))
263 colorflag = COLORFLAG_AUTO;
264 #endif
265 while ((ch = getopt_long(argc, argv,
266 "+1ABCD:FGHILPRSTUWXZabcdfghiklmnopqrstuvwxy,", long_opts,
267 NULL)) != -1) {
268 switch (ch) {
269 /*
270 * The -1, -C, -x and -l options all override each other so
271 * shell aliasing works right.
272 */
273 case '1':
274 f_singlecol = 1;
275 f_longform = 0;
276 f_stream = 0;
277 break;
278 case 'C':
279 f_sortacross = f_longform = f_singlecol = 0;
280 break;
281 case 'l':
282 f_longform = 1;
283 f_singlecol = 0;
284 f_stream = 0;
285 break;
286 case 'x':
287 f_sortacross = 1;
288 f_longform = 0;
289 f_singlecol = 0;
290 break;
291 /* The -c, -u, and -U options override each other. */
292 case 'c':
293 f_statustime = 1;
294 f_accesstime = 0;
295 f_birthtime = 0;
296 break;
297 case 'u':
298 f_accesstime = 1;
299 f_statustime = 0;
300 f_birthtime = 0;
301 break;
302 case 'U':
303 f_birthtime = 1;
304 f_accesstime = 0;
305 f_statustime = 0;
306 break;
307 case 'f':
308 f_nosort = 1;
309 /* FALLTHROUGH */
310 case 'a':
311 fts_options |= FTS_SEEDOT;
312 /* FALLTHROUGH */
313 case 'A':
314 f_listdot = 1;
315 break;
316 /* The -S, -t and -v options override each other. */
317 case 'S':
318 f_sizesort = 1;
319 f_timesort = 0;
320 f_verssort = 0;
321 break;
322 case 't':
323 f_timesort = 1;
324 f_sizesort = 0;
325 f_verssort = 0;
326 break;
327 case 'v':
328 f_verssort = 1;
329 f_sizesort = 0;
330 f_timesort = 0;
331 break;
332 /* Other flags. Please keep alphabetic. */
333 case ',':
334 f_thousands = 1;
335 break;
336 case 'B':
337 f_nonprint = 0;
338 f_octal = 1;
339 f_octal_escape = 0;
340 break;
341 case 'D':
342 f_timeformat = optarg;
343 break;
344 case 'F':
345 f_type = 1;
346 f_slash = 0;
347 break;
348 case 'G':
349 /*
350 * We both set CLICOLOR here and set colorflag to
351 * COLORFLAG_AUTO, because -G should not force color if
352 * stdout isn't a tty.
353 */
354 setenv("CLICOLOR", "", 1);
355 #ifdef COLORLS
356 colorflag = COLORFLAG_AUTO;
357 #endif
358 break;
359 case 'H':
360 fts_options |= FTS_COMFOLLOW;
361 f_nofollow = 0;
362 break;
363 case 'I':
364 f_noautodot = 1;
365 break;
366 case 'L':
367 fts_options &= ~FTS_PHYSICAL;
368 fts_options |= FTS_LOGICAL;
369 f_nofollow = 0;
370 break;
371 case 'P':
372 fts_options &= ~FTS_COMFOLLOW;
373 fts_options &= ~FTS_LOGICAL;
374 fts_options |= FTS_PHYSICAL;
375 f_nofollow = 1;
376 break;
377 case 'R':
378 f_recursive = 1;
379 break;
380 case 'T':
381 f_sectime = 1;
382 break;
383 case 'W':
384 f_whiteout = 1;
385 break;
386 case 'Z':
387 f_label = 1;
388 break;
389 case 'b':
390 f_nonprint = 0;
391 f_octal = 0;
392 f_octal_escape = 1;
393 break;
394 /* The -d option turns off the -R option. */
395 case 'd':
396 f_listdir = 1;
397 f_recursive = 0;
398 break;
399 case 'g':
400 f_longform = 1;
401 f_singlecol = 0;
402 f_stream = 0;
403 f_sowner = 1;
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 f_longform = 1;
423 f_singlecol = 0;
424 f_stream = 0;
425 break;
426 case 'o':
427 f_flags = 1;
428 break;
429 case 'p':
430 f_slash = 1;
431 f_type = 1;
432 break;
433 case 'q':
434 f_nonprint = 1;
435 f_octal = 0;
436 f_octal_escape = 0;
437 break;
438 case 'r':
439 f_reversesort = 1;
440 break;
441 case 's':
442 f_size = 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
570 /* Select a sort function. */
571 if (f_reversesort) {
572 if (f_sizesort)
573 sortfcn = revsizecmp;
574 else if (f_verssort)
575 sortfcn = revverscmp;
576 else if (!f_timesort)
577 sortfcn = revnamecmp;
578 else if (f_accesstime)
579 sortfcn = revacccmp;
580 else if (f_birthtime)
581 sortfcn = revbirthcmp;
582 else if (f_statustime)
583 sortfcn = revstatcmp;
584 else /* Use modification time. */
585 sortfcn = revmodcmp;
586 } else {
587 if (f_sizesort)
588 sortfcn = sizecmp;
589 else if (f_verssort)
590 sortfcn = verscmp;
591 else if (!f_timesort)
592 sortfcn = namecmp;
593 else if (f_accesstime)
594 sortfcn = acccmp;
595 else if (f_birthtime)
596 sortfcn = birthcmp;
597 else if (f_statustime)
598 sortfcn = statcmp;
599 else /* Use modification time. */
600 sortfcn = modcmp;
601 }
602
603 /* Select a print function. */
604 if (f_singlecol)
605 printfcn = printscol;
606 else if (f_longform)
607 printfcn = printlong;
608 else if (f_stream)
609 printfcn = printstream;
610 else
611 printfcn = printcol;
612
613 if (argc)
614 traverse(argc, argv, fts_options);
615 else
616 traverse(1, dotav, fts_options);
617 exit(rval);
618 }
619
620 static int output; /* If anything output. */
621
622 /*
623 * Traverse() walks the logical directory structure specified by the argv list
624 * in the order specified by the mastercmp() comparison function. During the
625 * traversal it passes linked lists of structures to display() which represent
626 * a superset (may be exact set) of the files to be displayed.
627 */
628 static void
traverse(int argc,char * argv[],int options)629 traverse(int argc, char *argv[], int options)
630 {
631 FTS *ftsp;
632 FTSENT *p, *chp;
633 int ch_options;
634
635 if ((ftsp =
636 fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL)
637 err(1, "fts_open");
638
639 /*
640 * We ignore errors from fts_children here since they will be
641 * replicated and signalled on the next call to fts_read() below.
642 */
643 chp = fts_children(ftsp, 0);
644 if (chp != NULL)
645 display(NULL, chp, options);
646 if (f_listdir)
647 return;
648
649 /*
650 * If not recursing down this tree and don't need stat info, just get
651 * the names.
652 */
653 ch_options = !f_recursive && !f_label &&
654 options & FTS_NOSTAT ? FTS_NAMEONLY : 0;
655
656 while (errno = 0, (p = fts_read(ftsp)) != NULL)
657 switch (p->fts_info) {
658 case FTS_DC:
659 warnx("%s: directory causes a cycle", p->fts_name);
660 break;
661 case FTS_DNR:
662 case FTS_ERR:
663 warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
664 rval = 1;
665 break;
666 case FTS_D:
667 if (p->fts_level != FTS_ROOTLEVEL &&
668 p->fts_name[0] == '.' && !f_listdot)
669 break;
670
671 /*
672 * If already output something, put out a newline as
673 * a separator. If multiple arguments, precede each
674 * directory with its name.
675 */
676 if (output) {
677 putchar('\n');
678 (void)printname(p->fts_path);
679 puts(":");
680 } else if (argc > 1) {
681 (void)printname(p->fts_path);
682 puts(":");
683 output = 1;
684 }
685 chp = fts_children(ftsp, ch_options);
686 display(p, chp, options);
687
688 if (!f_recursive && chp != NULL)
689 (void)fts_set(ftsp, p, FTS_SKIP);
690 break;
691 default:
692 break;
693 }
694 if (errno)
695 err(1, "fts_read");
696 }
697
698 /*
699 * Display() takes a linked list of FTSENT structures and passes the list
700 * along with any other necessary information to the print function. P
701 * points to the parent directory of the display list.
702 */
703 static void
display(const FTSENT * p,FTSENT * list,int options)704 display(const FTSENT *p, FTSENT *list, int options)
705 {
706 struct stat *sp;
707 DISPLAY d;
708 FTSENT *cur;
709 NAMES *np;
710 off_t maxsize;
711 long maxblock;
712 uintmax_t maxinode;
713 u_long btotal, labelstrlen, maxlen, maxnlink;
714 u_long maxlabelstr;
715 u_int sizelen;
716 int maxflags;
717 gid_t maxgroup;
718 uid_t maxuser;
719 size_t flen, ulen, glen;
720 char *initmax;
721 int entries, needstats;
722 const char *user, *group;
723 char *flags, *labelstr = NULL;
724 char ngroup[STRBUF_SIZEOF(uid_t) + 1];
725 char nuser[STRBUF_SIZEOF(gid_t) + 1];
726 u_long width[9];
727 int i;
728
729 needstats = f_inode || f_longform || f_size;
730 flen = 0;
731 btotal = 0;
732
733 #define LS_COLWIDTHS_FIELDS 9
734 initmax = getenv("LS_COLWIDTHS");
735
736 for (i = 0 ; i < LS_COLWIDTHS_FIELDS; i++)
737 width[i] = 0;
738
739 if (initmax != NULL) {
740 char *endp;
741
742 for (i = 0; i < LS_COLWIDTHS_FIELDS && *initmax != '\0'; i++) {
743 if (*initmax == ':') {
744 width[i] = 0;
745 } else {
746 width[i] = strtoul(initmax, &endp, 10);
747 initmax = endp;
748 while (isspace(*initmax))
749 initmax++;
750 if (*initmax != ':')
751 break;
752 initmax++;
753 }
754 }
755 if (i < LS_COLWIDTHS_FIELDS)
756 #ifdef COLORLS
757 if (!f_color)
758 #endif
759 f_notabs = 0;
760 }
761
762 /* Fields match -lios order. New ones should be added at the end. */
763 maxinode = width[0];
764 maxblock = width[1];
765 maxnlink = width[2];
766 maxuser = width[3];
767 maxgroup = width[4];
768 maxflags = width[5];
769 maxsize = width[6];
770 maxlen = width[7];
771 maxlabelstr = width[8];
772
773 MAKENINES(maxinode);
774 MAKENINES(maxblock);
775 MAKENINES(maxnlink);
776 MAKENINES(maxsize);
777
778 d.s_size = 0;
779 sizelen = 0;
780 flags = NULL;
781 for (cur = list, entries = 0; cur; cur = cur->fts_link) {
782 if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) {
783 warnx("%s: %s",
784 cur->fts_name, strerror(cur->fts_errno));
785 cur->fts_number = NO_PRINT;
786 rval = 1;
787 continue;
788 }
789 /*
790 * P is NULL if list is the argv list, to which different rules
791 * apply.
792 */
793 if (p == NULL) {
794 /* Directories will be displayed later. */
795 if (cur->fts_info == FTS_D && !f_listdir) {
796 cur->fts_number = NO_PRINT;
797 continue;
798 }
799 } else {
800 /* Only display dot file if -a/-A set. */
801 if (cur->fts_name[0] == '.' && !f_listdot) {
802 cur->fts_number = NO_PRINT;
803 continue;
804 }
805 }
806 if (cur->fts_namelen > maxlen)
807 maxlen = cur->fts_namelen;
808 if (f_octal || f_octal_escape) {
809 u_long t = len_octal(cur->fts_name, cur->fts_namelen);
810
811 if (t > maxlen)
812 maxlen = t;
813 }
814 if (needstats) {
815 sp = cur->fts_statp;
816 if (sp->st_blocks > maxblock)
817 maxblock = sp->st_blocks;
818 if (sp->st_ino > maxinode)
819 maxinode = sp->st_ino;
820 if (sp->st_nlink > maxnlink)
821 maxnlink = sp->st_nlink;
822 if (sp->st_size > maxsize)
823 maxsize = sp->st_size;
824
825 btotal += sp->st_blocks;
826 if (f_longform) {
827 if (f_numericonly) {
828 (void)snprintf(nuser, sizeof(nuser),
829 "%u", sp->st_uid);
830 (void)snprintf(ngroup, sizeof(ngroup),
831 "%u", sp->st_gid);
832 user = nuser;
833 group = ngroup;
834 } else {
835 user = user_from_uid(sp->st_uid, 0);
836 /*
837 * user_from_uid(..., 0) only returns
838 * NULL in OOM conditions. We could
839 * format the uid here, but (1) in
840 * general ls(1) exits on OOM, and (2)
841 * there is another allocation/exit
842 * path directly below, which will
843 * likely exit anyway.
844 */
845 if (user == NULL)
846 err(1, "user_from_uid");
847 group = group_from_gid(sp->st_gid, 0);
848 /* Ditto. */
849 if (group == NULL)
850 err(1, "group_from_gid");
851 }
852 if ((ulen = strlen(user)) > maxuser)
853 maxuser = ulen;
854 if ((glen = strlen(group)) > maxgroup)
855 maxgroup = glen;
856 if (f_flags) {
857 flags = fflagstostr(sp->st_flags);
858 if (flags != NULL && *flags == '\0') {
859 free(flags);
860 flags = strdup("-");
861 }
862 if (flags == NULL)
863 err(1, "fflagstostr");
864 flen = strlen(flags);
865 if (flen > (size_t)maxflags)
866 maxflags = flen;
867 } else
868 flen = 0;
869 labelstr = NULL;
870 if (f_label) {
871 char name[PATH_MAX + 1];
872 mac_t label;
873 int error;
874
875 error = mac_prepare_file_label(&label);
876 if (error == -1) {
877 warn("MAC label for %s/%s",
878 cur->fts_parent->fts_path,
879 cur->fts_name);
880 goto label_out;
881 }
882
883 if (cur->fts_level == FTS_ROOTLEVEL)
884 snprintf(name, sizeof(name),
885 "%s", cur->fts_name);
886 else
887 snprintf(name, sizeof(name),
888 "%s/%s", cur->fts_parent->
889 fts_accpath, cur->fts_name);
890
891 if (options & FTS_LOGICAL)
892 error = mac_get_file(name,
893 label);
894 else
895 error = mac_get_link(name,
896 label);
897 if (error == -1) {
898 warn("MAC label for %s/%s",
899 cur->fts_parent->fts_path,
900 cur->fts_name);
901 mac_free(label);
902 goto label_out;
903 }
904
905 error = mac_to_text(label,
906 &labelstr);
907 if (error == -1) {
908 warn("MAC label for %s/%s",
909 cur->fts_parent->fts_path,
910 cur->fts_name);
911 mac_free(label);
912 goto label_out;
913 }
914 mac_free(label);
915 label_out:
916 if (labelstr == NULL)
917 labelstr = strdup("-");
918 labelstrlen = strlen(labelstr);
919 if (labelstrlen > maxlabelstr)
920 maxlabelstr = labelstrlen;
921 } else
922 labelstrlen = 0;
923
924 if ((np = malloc(sizeof(NAMES) + labelstrlen +
925 ulen + glen + flen + 4)) == NULL)
926 err(1, "malloc");
927
928 np->user = &np->data[0];
929 (void)strcpy(np->user, user);
930 np->group = &np->data[ulen + 1];
931 (void)strcpy(np->group, group);
932
933 if (S_ISCHR(sp->st_mode) ||
934 S_ISBLK(sp->st_mode)) {
935 sizelen = snprintf(NULL, 0,
936 "%#jx", (uintmax_t)sp->st_rdev);
937 if (d.s_size < sizelen)
938 d.s_size = sizelen;
939 }
940
941 if (f_flags) {
942 np->flags = &np->data[ulen + glen + 2];
943 (void)strcpy(np->flags, flags);
944 free(flags);
945 }
946 if (f_label) {
947 np->label = &np->data[ulen + glen + 2
948 + (f_flags ? flen + 1 : 0)];
949 (void)strcpy(np->label, labelstr);
950 free(labelstr);
951 }
952 cur->fts_pointer = np;
953 }
954 }
955 ++entries;
956 }
957
958 /*
959 * If there are no entries to display, we normally stop right
960 * here. However, we must continue if we have to display the
961 * total block count. In this case, we display the total only
962 * on the second (p != NULL) pass.
963 */
964 if (!entries && (!(f_longform || f_size) || p == NULL))
965 return;
966
967 d.list = list;
968 d.entries = entries;
969 d.maxlen = maxlen;
970 if (needstats) {
971 d.btotal = btotal;
972 d.s_block = snprintf(NULL, 0, "%lu", 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