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 __FBSDID("$FreeBSD$");
48
49 #include <sys/param.h>
50 #include <sys/stat.h>
51 #include <sys/ioctl.h>
52 #include <sys/mac.h>
53
54 #include <dirent.h>
55 #include <err.h>
56 #include <errno.h>
57 #include <fts.h>
58 #include <getopt.h>
59 #include <grp.h>
60 #include <inttypes.h>
61 #include <limits.h>
62 #include <locale.h>
63 #include <pwd.h>
64 #include <stdbool.h>
65 #include <stdio.h>
66 #include <stdlib.h>
67 #include <string.h>
68 #include <unistd.h>
69 #ifdef COLORLS
70 #include <termcap.h>
71 #include <signal.h>
72 #endif
73
74 #include "ls.h"
75 #include "extern.h"
76
77 /*
78 * Upward approximation of the maximum number of characters needed to
79 * represent a value of integral type t as a string, excluding the
80 * NUL terminator, with provision for a sign.
81 */
82 #define STRBUF_SIZEOF(t) (1 + CHAR_BIT * sizeof(t) / 3 + 1)
83
84 /*
85 * MAKENINES(n) turns n into (10**n)-1. This is useful for converting a width
86 * into a number that wide in decimal.
87 * XXX: Overflows are not considered.
88 */
89 #define MAKENINES(n) \
90 do { \
91 intmax_t i; \
92 \
93 /* Use a loop as all values of n are small. */ \
94 for (i = 1; n > 0; i *= 10) \
95 n--; \
96 n = i - 1; \
97 } while(0)
98
99 static void display(const FTSENT *, FTSENT *, int);
100 static int mastercmp(const FTSENT * const *, const FTSENT * const *);
101 static void traverse(int, char **, int);
102
103 #define COLOR_OPT (CHAR_MAX + 1)
104
105 static const struct option long_opts[] =
106 {
107 #ifdef COLORLS
108 {"color", optional_argument, NULL, COLOR_OPT},
109 #endif
110 {NULL, no_argument, NULL, 0}
111 };
112
113 static void (*printfcn)(const DISPLAY *);
114 static int (*sortfcn)(const FTSENT *, const FTSENT *);
115
116 long blocksize; /* block size units */
117 int termwidth = 80; /* default terminal width */
118
119 /* flags */
120 int f_accesstime; /* use time of last access */
121 int f_birthtime; /* use time of birth */
122 int f_flags; /* show flags associated with a file */
123 int f_humanval; /* show human-readable file sizes */
124 int f_inode; /* print inode */
125 static int f_kblocks; /* print size in kilobytes */
126 int f_label; /* show MAC label */
127 static int f_listdir; /* list actual directory, not contents */
128 static int f_listdot; /* list files beginning with . */
129 int f_longform; /* long listing format */
130 static int f_noautodot; /* do not automatically enable -A for root */
131 static int f_nofollow; /* don't follow symbolic link arguments */
132 int f_nonprint; /* show unprintables as ? */
133 static int f_nosort; /* don't sort output */
134 int f_notabs; /* don't use tab-separated multi-col output */
135 static int f_numericonly; /* don't convert uid/gid to name */
136 int f_octal; /* show unprintables as \xxx */
137 int f_octal_escape; /* like f_octal but use C escapes if possible */
138 static int f_recursive; /* ls subdirectories also */
139 static int f_reversesort; /* reverse whatever sort is used */
140 int f_samesort; /* sort time and name in same direction */
141 int f_sectime; /* print full time information */
142 static int f_singlecol; /* use single column output */
143 int f_size; /* list size in short listing */
144 static int f_sizesort;
145 int f_slash; /* similar to f_type, but only for dirs */
146 int f_sortacross; /* sort across rows, not down columns */
147 int f_statustime; /* use time of last mode change */
148 static int f_stream; /* stream the output, separate with commas */
149 int f_thousands; /* show file sizes with thousands separators */
150 char *f_timeformat; /* user-specified time format */
151 static int f_timesort; /* sort by time vice name */
152 int f_type; /* add type character for non-regular files */
153 static int f_whiteout; /* show whiteout entries */
154 #ifdef COLORLS
155 int colorflag = COLORFLAG_AUTO; /* passed in colorflag */
156 int f_color; /* add type in color for non-regular files */
157 bool explicitansi; /* Explicit ANSI sequences, no termcap(5) */
158 char *ansi_bgcol; /* ANSI sequence to set background colour */
159 char *ansi_fgcol; /* ANSI sequence to set foreground colour */
160 char *ansi_coloff; /* ANSI sequence to reset colours */
161 char *attrs_off; /* ANSI sequence to turn off attributes */
162 char *enter_bold; /* ANSI sequence to set color to bold mode */
163 #endif
164
165 static int rval;
166
167 static bool
do_color_from_env(void)168 do_color_from_env(void)
169 {
170 const char *p;
171 bool doit;
172
173 doit = false;
174 p = getenv("CLICOLOR");
175 if (p == NULL) {
176 /*
177 * COLORTERM is the more standard name for this variable. We'll
178 * honor it as long as it's both set and not empty.
179 */
180 p = getenv("COLORTERM");
181 if (p != NULL && *p != '\0')
182 doit = true;
183 } else
184 doit = true;
185
186 return (doit &&
187 (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE")));
188 }
189
190 static bool
do_color(void)191 do_color(void)
192 {
193
194 #ifdef COLORLS
195 if (colorflag == COLORFLAG_NEVER)
196 return (false);
197 else if (colorflag == COLORFLAG_ALWAYS)
198 return (true);
199 #endif
200 return (do_color_from_env());
201 }
202
203 #ifdef COLORLS
204 static bool
do_color_always(const char * term)205 do_color_always(const char *term)
206 {
207
208 return (strcmp(term, "always") == 0 || strcmp(term, "yes") == 0 ||
209 strcmp(term, "force") == 0);
210 }
211
212 static bool
do_color_never(const char * term)213 do_color_never(const char *term)
214 {
215
216 return (strcmp(term, "never") == 0 || strcmp(term, "no") == 0 ||
217 strcmp(term, "none") == 0);
218 }
219
220 static bool
do_color_auto(const char * term)221 do_color_auto(const char *term)
222 {
223
224 return (strcmp(term, "auto") == 0 || strcmp(term, "tty") == 0 ||
225 strcmp(term, "if-tty") == 0);
226 }
227 #endif /* COLORLS */
228
229 int
main(int argc,char * argv[])230 main(int argc, char *argv[])
231 {
232 static char dot[] = ".", *dotav[] = {dot, NULL};
233 struct winsize win;
234 int ch, fts_options, notused;
235 char *p;
236 const char *errstr = NULL;
237 #ifdef COLORLS
238 char termcapbuf[1024]; /* termcap definition buffer */
239 char tcapbuf[512]; /* capability buffer */
240 char *bp = tcapbuf, *term;
241 #endif
242
243 (void)setlocale(LC_ALL, "");
244
245 /* Terminal defaults to -Cq, non-terminal defaults to -1. */
246 if (isatty(STDOUT_FILENO)) {
247 termwidth = 80;
248 if ((p = getenv("COLUMNS")) != NULL && *p != '\0')
249 termwidth = strtonum(p, 0, INT_MAX, &errstr);
250 else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) != -1 &&
251 win.ws_col > 0)
252 termwidth = win.ws_col;
253 f_nonprint = 1;
254 } else {
255 f_singlecol = 1;
256 /* retrieve environment variable, in case of explicit -C */
257 p = getenv("COLUMNS");
258 if (p)
259 termwidth = strtonum(p, 0, INT_MAX, &errstr);
260 }
261
262 if (errstr)
263 termwidth = 80;
264
265 fts_options = FTS_PHYSICAL;
266 if (getenv("LS_SAMESORT"))
267 f_samesort = 1;
268 while ((ch = getopt_long(argc, argv,
269 "+1ABCD:FGHILPRSTUWXZabcdfghiklmnopqrstuwxy,", long_opts,
270 NULL)) != -1) {
271 switch (ch) {
272 /*
273 * The -1, -C, -x and -l options all override each other so
274 * shell aliasing works right.
275 */
276 case '1':
277 f_singlecol = 1;
278 f_longform = 0;
279 f_stream = 0;
280 break;
281 case 'C':
282 f_sortacross = f_longform = f_singlecol = 0;
283 break;
284 case 'l':
285 f_longform = 1;
286 f_singlecol = 0;
287 f_stream = 0;
288 break;
289 case 'x':
290 f_sortacross = 1;
291 f_longform = 0;
292 f_singlecol = 0;
293 break;
294 /* The -c, -u, and -U options override each other. */
295 case 'c':
296 f_statustime = 1;
297 f_accesstime = 0;
298 f_birthtime = 0;
299 break;
300 case 'u':
301 f_accesstime = 1;
302 f_statustime = 0;
303 f_birthtime = 0;
304 break;
305 case 'U':
306 f_birthtime = 1;
307 f_accesstime = 0;
308 f_statustime = 0;
309 break;
310 case 'f':
311 f_nosort = 1;
312 /* FALLTHROUGH */
313 case 'a':
314 fts_options |= FTS_SEEDOT;
315 /* FALLTHROUGH */
316 case 'A':
317 f_listdot = 1;
318 break;
319 /* The -t and -S options override each other. */
320 case 'S':
321 f_sizesort = 1;
322 f_timesort = 0;
323 break;
324 case 't':
325 f_timesort = 1;
326 f_sizesort = 0;
327 break;
328 /* Other flags. Please keep alphabetic. */
329 case ',':
330 f_thousands = 1;
331 break;
332 case 'B':
333 f_nonprint = 0;
334 f_octal = 1;
335 f_octal_escape = 0;
336 break;
337 case 'D':
338 f_timeformat = optarg;
339 break;
340 case 'F':
341 f_type = 1;
342 f_slash = 0;
343 break;
344 case 'G':
345 setenv("CLICOLOR", "", 1);
346 break;
347 case 'H':
348 fts_options |= FTS_COMFOLLOW;
349 f_nofollow = 0;
350 break;
351 case 'I':
352 f_noautodot = 1;
353 break;
354 case 'L':
355 fts_options &= ~FTS_PHYSICAL;
356 fts_options |= FTS_LOGICAL;
357 f_nofollow = 0;
358 break;
359 case 'P':
360 fts_options &= ~FTS_COMFOLLOW;
361 fts_options &= ~FTS_LOGICAL;
362 fts_options |= FTS_PHYSICAL;
363 f_nofollow = 1;
364 break;
365 case 'R':
366 f_recursive = 1;
367 break;
368 case 'T':
369 f_sectime = 1;
370 break;
371 case 'W':
372 f_whiteout = 1;
373 break;
374 case 'Z':
375 f_label = 1;
376 break;
377 case 'b':
378 f_nonprint = 0;
379 f_octal = 0;
380 f_octal_escape = 1;
381 break;
382 /* The -d option turns off the -R option. */
383 case 'd':
384 f_listdir = 1;
385 f_recursive = 0;
386 break;
387 case 'g': /* Compatibility with 4.3BSD. */
388 break;
389 case 'h':
390 f_humanval = 1;
391 break;
392 case 'i':
393 f_inode = 1;
394 break;
395 case 'k':
396 f_humanval = 0;
397 f_kblocks = 1;
398 break;
399 case 'm':
400 f_stream = 1;
401 f_singlecol = 0;
402 f_longform = 0;
403 break;
404 case 'n':
405 f_numericonly = 1;
406 break;
407 case 'o':
408 f_flags = 1;
409 break;
410 case 'p':
411 f_slash = 1;
412 f_type = 1;
413 break;
414 case 'q':
415 f_nonprint = 1;
416 f_octal = 0;
417 f_octal_escape = 0;
418 break;
419 case 'r':
420 f_reversesort = 1;
421 break;
422 case 's':
423 f_size = 1;
424 break;
425 case 'w':
426 f_nonprint = 0;
427 f_octal = 0;
428 f_octal_escape = 0;
429 break;
430 case 'y':
431 f_samesort = 1;
432 break;
433 #ifdef COLORLS
434 case COLOR_OPT:
435 if (optarg == NULL || do_color_always(optarg))
436 colorflag = COLORFLAG_ALWAYS;
437 else if (do_color_auto(optarg))
438 colorflag = COLORFLAG_AUTO;
439 else if (do_color_never(optarg))
440 colorflag = COLORFLAG_NEVER;
441 else
442 errx(2, "unsupported --color value '%s' (must be always, auto, or never)",
443 optarg);
444 break;
445 #endif
446 default:
447 case '?':
448 usage();
449 }
450 }
451 argc -= optind;
452 argv += optind;
453
454 /* Root is -A automatically unless -I. */
455 if (!f_listdot && getuid() == (uid_t)0 && !f_noautodot)
456 f_listdot = 1;
457
458 /*
459 * Enabling of colours is conditional on the environment in conjunction
460 * with the --color and -G arguments, if supplied.
461 */
462 if (do_color()) {
463 #ifdef COLORLS
464 if ((term = getenv("TERM")) != NULL &&
465 tgetent(termcapbuf, term) == 1) {
466 ansi_fgcol = tgetstr("AF", &bp);
467 ansi_bgcol = tgetstr("AB", &bp);
468 attrs_off = tgetstr("me", &bp);
469 enter_bold = tgetstr("md", &bp);
470
471 /* To switch colours off use 'op' if
472 * available, otherwise use 'oc', or
473 * don't do colours at all. */
474 ansi_coloff = tgetstr("op", &bp);
475 if (!ansi_coloff)
476 ansi_coloff = tgetstr("oc", &bp);
477 if (ansi_fgcol && ansi_bgcol && ansi_coloff)
478 f_color = 1;
479 } else if (colorflag == COLORFLAG_ALWAYS) {
480 /*
481 * If we're *always* doing color but we don't have
482 * a functional TERM supplied, we'll fallback to
483 * outputting raw ANSI sequences.
484 */
485 f_color = 1;
486 explicitansi = true;
487 }
488 #else
489 warnx("color support not compiled in");
490 #endif /*COLORLS*/
491 }
492
493 #ifdef COLORLS
494 if (f_color) {
495 /*
496 * We can't put tabs and color sequences together:
497 * column number will be incremented incorrectly
498 * for "stty oxtabs" mode.
499 */
500 f_notabs = 1;
501 (void)signal(SIGINT, colorquit);
502 (void)signal(SIGQUIT, colorquit);
503 parsecolors(getenv("LSCOLORS"));
504 }
505 #endif
506
507 /*
508 * If not -F, -i, -l, -s, -S or -t options, don't require stat
509 * information, unless in color mode in which case we do
510 * need this to determine which colors to display.
511 */
512 if (!f_inode && !f_longform && !f_size && !f_timesort &&
513 !f_sizesort && !f_type
514 #ifdef COLORLS
515 && !f_color
516 #endif
517 )
518 fts_options |= FTS_NOSTAT;
519
520 /*
521 * If not -F, -P, -d or -l options, follow any symbolic links listed on
522 * the command line, unless in color mode in which case we need to
523 * distinguish file type for a symbolic link itself and its target.
524 */
525 if (!f_nofollow && !f_longform && !f_listdir && (!f_type || f_slash)
526 #ifdef COLORLS
527 && !f_color
528 #endif
529 )
530 fts_options |= FTS_COMFOLLOW;
531
532 /*
533 * If -W, show whiteout entries
534 */
535 #ifdef FTS_WHITEOUT
536 if (f_whiteout)
537 fts_options |= FTS_WHITEOUT;
538 #endif
539
540 /* If -i, -l or -s, figure out block size. */
541 if (f_inode || f_longform || f_size) {
542 if (f_kblocks)
543 blocksize = 2;
544 else {
545 (void)getbsize(¬used, &blocksize);
546 blocksize /= 512;
547 }
548 }
549 /* Select a sort function. */
550 if (f_reversesort) {
551 if (!f_timesort && !f_sizesort)
552 sortfcn = revnamecmp;
553 else if (f_sizesort)
554 sortfcn = revsizecmp;
555 else if (f_accesstime)
556 sortfcn = revacccmp;
557 else if (f_birthtime)
558 sortfcn = revbirthcmp;
559 else if (f_statustime)
560 sortfcn = revstatcmp;
561 else /* Use modification time. */
562 sortfcn = revmodcmp;
563 } else {
564 if (!f_timesort && !f_sizesort)
565 sortfcn = namecmp;
566 else if (f_sizesort)
567 sortfcn = sizecmp;
568 else if (f_accesstime)
569 sortfcn = acccmp;
570 else if (f_birthtime)
571 sortfcn = birthcmp;
572 else if (f_statustime)
573 sortfcn = statcmp;
574 else /* Use modification time. */
575 sortfcn = modcmp;
576 }
577
578 /* Select a print function. */
579 if (f_singlecol)
580 printfcn = printscol;
581 else if (f_longform)
582 printfcn = printlong;
583 else if (f_stream)
584 printfcn = printstream;
585 else
586 printfcn = printcol;
587
588 if (argc)
589 traverse(argc, argv, fts_options);
590 else
591 traverse(1, dotav, fts_options);
592 exit(rval);
593 }
594
595 static int output; /* If anything output. */
596
597 /*
598 * Traverse() walks the logical directory structure specified by the argv list
599 * in the order specified by the mastercmp() comparison function. During the
600 * traversal it passes linked lists of structures to display() which represent
601 * a superset (may be exact set) of the files to be displayed.
602 */
603 static void
traverse(int argc,char * argv[],int options)604 traverse(int argc, char *argv[], int options)
605 {
606 FTS *ftsp;
607 FTSENT *p, *chp;
608 int ch_options;
609
610 if ((ftsp =
611 fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL)
612 err(1, "fts_open");
613
614 /*
615 * We ignore errors from fts_children here since they will be
616 * replicated and signalled on the next call to fts_read() below.
617 */
618 chp = fts_children(ftsp, 0);
619 if (chp != NULL)
620 display(NULL, chp, options);
621 if (f_listdir)
622 return;
623
624 /*
625 * If not recursing down this tree and don't need stat info, just get
626 * the names.
627 */
628 ch_options = !f_recursive && !f_label &&
629 options & FTS_NOSTAT ? FTS_NAMEONLY : 0;
630
631 while ((p = fts_read(ftsp)) != NULL)
632 switch (p->fts_info) {
633 case FTS_DC:
634 warnx("%s: directory causes a cycle", p->fts_name);
635 break;
636 case FTS_DNR:
637 case FTS_ERR:
638 warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
639 rval = 1;
640 break;
641 case FTS_D:
642 if (p->fts_level != FTS_ROOTLEVEL &&
643 p->fts_name[0] == '.' && !f_listdot)
644 break;
645
646 /*
647 * If already output something, put out a newline as
648 * a separator. If multiple arguments, precede each
649 * directory with its name.
650 */
651 if (output) {
652 putchar('\n');
653 (void)printname(p->fts_path);
654 puts(":");
655 } else if (argc > 1) {
656 (void)printname(p->fts_path);
657 puts(":");
658 output = 1;
659 }
660 chp = fts_children(ftsp, ch_options);
661 display(p, chp, options);
662
663 if (!f_recursive && chp != NULL)
664 (void)fts_set(ftsp, p, FTS_SKIP);
665 break;
666 default:
667 break;
668 }
669 if (errno)
670 err(1, "fts_read");
671 }
672
673 /*
674 * Display() takes a linked list of FTSENT structures and passes the list
675 * along with any other necessary information to the print function. P
676 * points to the parent directory of the display list.
677 */
678 static void
display(const FTSENT * p,FTSENT * list,int options)679 display(const FTSENT *p, FTSENT *list, int options)
680 {
681 struct stat *sp;
682 DISPLAY d;
683 FTSENT *cur;
684 NAMES *np;
685 off_t maxsize;
686 long maxblock;
687 uintmax_t maxinode;
688 u_long btotal, labelstrlen, maxlen, maxnlink;
689 u_long maxlabelstr;
690 u_int sizelen;
691 int maxflags;
692 gid_t maxgroup;
693 uid_t maxuser;
694 size_t flen, ulen, glen;
695 char *initmax;
696 int entries, needstats;
697 const char *user, *group;
698 char *flags, *labelstr = NULL;
699 char ngroup[STRBUF_SIZEOF(uid_t) + 1];
700 char nuser[STRBUF_SIZEOF(gid_t) + 1];
701
702 needstats = f_inode || f_longform || f_size;
703 flen = 0;
704 btotal = 0;
705 initmax = getenv("LS_COLWIDTHS");
706 /* Fields match -lios order. New ones should be added at the end. */
707 maxlabelstr = maxblock = maxlen = maxnlink = 0;
708 maxuser = maxgroup = maxflags = maxsize = 0;
709 maxinode = 0;
710 if (initmax != NULL && *initmax != '\0') {
711 char *initmax2, *jinitmax;
712 int ninitmax;
713
714 /* Fill-in "::" as "0:0:0" for the sake of scanf. */
715 jinitmax = malloc(strlen(initmax) * 2 + 2);
716 if (jinitmax == NULL)
717 err(1, "malloc");
718 initmax2 = jinitmax;
719 if (*initmax == ':')
720 strcpy(initmax2, "0:"), initmax2 += 2;
721 else
722 *initmax2++ = *initmax, *initmax2 = '\0';
723 for (initmax++; *initmax != '\0'; initmax++) {
724 if (initmax[-1] == ':' && initmax[0] == ':') {
725 *initmax2++ = '0';
726 *initmax2++ = initmax[0];
727 initmax2[1] = '\0';
728 } else {
729 *initmax2++ = initmax[0];
730 initmax2[1] = '\0';
731 }
732 }
733 if (initmax2[-1] == ':')
734 strcpy(initmax2, "0");
735
736 ninitmax = sscanf(jinitmax,
737 " %ju : %ld : %lu : %u : %u : %i : %jd : %lu : %lu ",
738 &maxinode, &maxblock, &maxnlink, &maxuser,
739 &maxgroup, &maxflags, &maxsize, &maxlen, &maxlabelstr);
740 f_notabs = 1;
741 switch (ninitmax) {
742 case 0:
743 maxinode = 0;
744 /* FALLTHROUGH */
745 case 1:
746 maxblock = 0;
747 /* FALLTHROUGH */
748 case 2:
749 maxnlink = 0;
750 /* FALLTHROUGH */
751 case 3:
752 maxuser = 0;
753 /* FALLTHROUGH */
754 case 4:
755 maxgroup = 0;
756 /* FALLTHROUGH */
757 case 5:
758 maxflags = 0;
759 /* FALLTHROUGH */
760 case 6:
761 maxsize = 0;
762 /* FALLTHROUGH */
763 case 7:
764 maxlen = 0;
765 /* FALLTHROUGH */
766 case 8:
767 maxlabelstr = 0;
768 /* FALLTHROUGH */
769 #ifdef COLORLS
770 if (!f_color)
771 #endif
772 f_notabs = 0;
773 /* FALLTHROUGH */
774 default:
775 break;
776 }
777 MAKENINES(maxinode);
778 MAKENINES(maxblock);
779 MAKENINES(maxnlink);
780 MAKENINES(maxsize);
781 free(jinitmax);
782 }
783 d.s_size = 0;
784 sizelen = 0;
785 flags = NULL;
786 for (cur = list, entries = 0; cur; cur = cur->fts_link) {
787 if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) {
788 warnx("%s: %s",
789 cur->fts_name, strerror(cur->fts_errno));
790 cur->fts_number = NO_PRINT;
791 rval = 1;
792 continue;
793 }
794 /*
795 * P is NULL if list is the argv list, to which different rules
796 * apply.
797 */
798 if (p == NULL) {
799 /* Directories will be displayed later. */
800 if (cur->fts_info == FTS_D && !f_listdir) {
801 cur->fts_number = NO_PRINT;
802 continue;
803 }
804 } else {
805 /* Only display dot file if -a/-A set. */
806 if (cur->fts_name[0] == '.' && !f_listdot) {
807 cur->fts_number = NO_PRINT;
808 continue;
809 }
810 }
811 if (cur->fts_namelen > maxlen)
812 maxlen = cur->fts_namelen;
813 if (f_octal || f_octal_escape) {
814 u_long t = len_octal(cur->fts_name, cur->fts_namelen);
815
816 if (t > maxlen)
817 maxlen = t;
818 }
819 if (needstats) {
820 sp = cur->fts_statp;
821 if (sp->st_blocks > maxblock)
822 maxblock = sp->st_blocks;
823 if (sp->st_ino > maxinode)
824 maxinode = sp->st_ino;
825 if (sp->st_nlink > maxnlink)
826 maxnlink = sp->st_nlink;
827 if (sp->st_size > maxsize)
828 maxsize = sp->st_size;
829
830 btotal += sp->st_blocks;
831 if (f_longform) {
832 if (f_numericonly) {
833 (void)snprintf(nuser, sizeof(nuser),
834 "%u", sp->st_uid);
835 (void)snprintf(ngroup, sizeof(ngroup),
836 "%u", sp->st_gid);
837 user = nuser;
838 group = ngroup;
839 } else {
840 user = user_from_uid(sp->st_uid, 0);
841 group = group_from_gid(sp->st_gid, 0);
842 }
843 if ((ulen = strlen(user)) > maxuser)
844 maxuser = ulen;
845 if ((glen = strlen(group)) > maxgroup)
846 maxgroup = glen;
847 if (f_flags) {
848 flags = fflagstostr(sp->st_flags);
849 if (flags != NULL && *flags == '\0') {
850 free(flags);
851 flags = strdup("-");
852 }
853 if (flags == NULL)
854 err(1, "fflagstostr");
855 flen = strlen(flags);
856 if (flen > (size_t)maxflags)
857 maxflags = flen;
858 } else
859 flen = 0;
860 labelstr = NULL;
861 if (f_label) {
862 char name[PATH_MAX + 1];
863 mac_t label;
864 int error;
865
866 error = mac_prepare_file_label(&label);
867 if (error == -1) {
868 warn("MAC label for %s/%s",
869 cur->fts_parent->fts_path,
870 cur->fts_name);
871 goto label_out;
872 }
873
874 if (cur->fts_level == FTS_ROOTLEVEL)
875 snprintf(name, sizeof(name),
876 "%s", cur->fts_name);
877 else
878 snprintf(name, sizeof(name),
879 "%s/%s", cur->fts_parent->
880 fts_accpath, cur->fts_name);
881
882 if (options & FTS_LOGICAL)
883 error = mac_get_file(name,
884 label);
885 else
886 error = mac_get_link(name,
887 label);
888 if (error == -1) {
889 warn("MAC label for %s/%s",
890 cur->fts_parent->fts_path,
891 cur->fts_name);
892 mac_free(label);
893 goto label_out;
894 }
895
896 error = mac_to_text(label,
897 &labelstr);
898 if (error == -1) {
899 warn("MAC label for %s/%s",
900 cur->fts_parent->fts_path,
901 cur->fts_name);
902 mac_free(label);
903 goto label_out;
904 }
905 mac_free(label);
906 label_out:
907 if (labelstr == NULL)
908 labelstr = strdup("-");
909 labelstrlen = strlen(labelstr);
910 if (labelstrlen > maxlabelstr)
911 maxlabelstr = labelstrlen;
912 } else
913 labelstrlen = 0;
914
915 if ((np = malloc(sizeof(NAMES) + labelstrlen +
916 ulen + glen + flen + 4)) == NULL)
917 err(1, "malloc");
918
919 np->user = &np->data[0];
920 (void)strcpy(np->user, user);
921 np->group = &np->data[ulen + 1];
922 (void)strcpy(np->group, group);
923
924 if (S_ISCHR(sp->st_mode) ||
925 S_ISBLK(sp->st_mode)) {
926 sizelen = snprintf(NULL, 0,
927 "%#jx", (uintmax_t)sp->st_rdev);
928 if (d.s_size < sizelen)
929 d.s_size = sizelen;
930 }
931
932 if (f_flags) {
933 np->flags = &np->data[ulen + glen + 2];
934 (void)strcpy(np->flags, flags);
935 free(flags);
936 }
937 if (f_label) {
938 np->label = &np->data[ulen + glen + 2
939 + (f_flags ? flen + 1 : 0)];
940 (void)strcpy(np->label, labelstr);
941 free(labelstr);
942 }
943 cur->fts_pointer = np;
944 }
945 }
946 ++entries;
947 }
948
949 /*
950 * If there are no entries to display, we normally stop right
951 * here. However, we must continue if we have to display the
952 * total block count. In this case, we display the total only
953 * on the second (p != NULL) pass.
954 */
955 if (!entries && (!(f_longform || f_size) || p == NULL))
956 return;
957
958 d.list = list;
959 d.entries = entries;
960 d.maxlen = maxlen;
961 if (needstats) {
962 d.btotal = btotal;
963 d.s_block = snprintf(NULL, 0, "%lu", howmany(maxblock, blocksize));
964 d.s_flags = maxflags;
965 d.s_label = maxlabelstr;
966 d.s_group = maxgroup;
967 d.s_inode = snprintf(NULL, 0, "%ju", maxinode);
968 d.s_nlink = snprintf(NULL, 0, "%lu", maxnlink);
969 sizelen = f_humanval ? HUMANVALSTR_LEN :
970 snprintf(NULL, 0, "%ju", maxsize);
971 if (d.s_size < sizelen)
972 d.s_size = sizelen;
973 d.s_user = maxuser;
974 }
975 if (f_thousands) /* make space for commas */
976 d.s_size += (d.s_size - 1) / 3;
977 printfcn(&d);
978 output = 1;
979
980 if (f_longform)
981 for (cur = list; cur; cur = cur->fts_link)
982 free(cur->fts_pointer);
983 }
984
985 /*
986 * Ordering for mastercmp:
987 * If ordering the argv (fts_level = FTS_ROOTLEVEL) return non-directories
988 * as larger than directories. Within either group, use the sort function.
989 * All other levels use the sort function. Error entries remain unsorted.
990 */
991 static int
mastercmp(const FTSENT * const * a,const FTSENT * const * b)992 mastercmp(const FTSENT * const *a, const FTSENT * const *b)
993 {
994 int a_info, b_info;
995
996 a_info = (*a)->fts_info;
997 if (a_info == FTS_ERR)
998 return (0);
999 b_info = (*b)->fts_info;
1000 if (b_info == FTS_ERR)
1001 return (0);
1002
1003 if (a_info == FTS_NS || b_info == FTS_NS)
1004 return (namecmp(*a, *b));
1005
1006 if (a_info != b_info &&
1007 (*a)->fts_level == FTS_ROOTLEVEL && !f_listdir) {
1008 if (a_info == FTS_D)
1009 return (1);
1010 if (b_info == FTS_D)
1011 return (-1);
1012 }
1013 return (sortfcn(*a, *b));
1014 }
1015