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 <ctype.h>
55 #include <dirent.h>
56 #include <err.h>
57 #include <errno.h>
58 #include <fts.h>
59 #include <getopt.h>
60 #include <grp.h>
61 #include <inttypes.h>
62 #include <limits.h>
63 #include <locale.h>
64 #include <pwd.h>
65 #include <stdbool.h>
66 #include <stdio.h>
67 #include <stdlib.h>
68 #include <string.h>
69 #include <unistd.h>
70 #ifdef COLORLS
71 #include <termcap.h>
72 #include <signal.h>
73 #endif
74
75 #include "ls.h"
76 #include "extern.h"
77
78 /*
79 * Upward approximation of the maximum number of characters needed to
80 * represent a value of integral type t as a string, excluding the
81 * NUL terminator, with provision for a sign.
82 */
83 #define STRBUF_SIZEOF(t) (1 + CHAR_BIT * sizeof(t) / 3 + 1)
84
85 /*
86 * MAKENINES(n) turns n into (10**n)-1. This is useful for converting a width
87 * into a number that wide in decimal.
88 * XXX: Overflows are not considered.
89 */
90 #define MAKENINES(n) \
91 do { \
92 intmax_t __i; \
93 \
94 /* Use a loop as all values of n are small. */ \
95 for (__i = 1; n > 0; __i *= 10) \
96 n--; \
97 n = __i - 1; \
98 } while(0)
99
100 static void display(const FTSENT *, FTSENT *, int);
101 static int mastercmp(const FTSENT * const *, const FTSENT * const *);
102 static void traverse(int, char **, int);
103
104 #define COLOR_OPT (CHAR_MAX + 1)
105
106 static const struct option long_opts[] =
107 {
108 {"color", optional_argument, NULL, COLOR_OPT},
109 {NULL, no_argument, NULL, 0}
110 };
111
112 static void (*printfcn)(const DISPLAY *);
113 static int (*sortfcn)(const FTSENT *, const FTSENT *);
114
115 long blocksize; /* block size units */
116 int termwidth = 80; /* default terminal width */
117
118 /* flags */
119 int f_accesstime; /* use time of last access */
120 int f_birthtime; /* use time of birth */
121 int f_flags; /* show flags associated with a file */
122 int f_humanval; /* show human-readable file sizes */
123 int f_inode; /* print inode */
124 static int f_kblocks; /* print size in kilobytes */
125 int f_label; /* show MAC label */
126 static int f_listdir; /* list actual directory, not contents */
127 static int f_listdot; /* list files beginning with . */
128 int f_longform; /* long listing format */
129 static int f_noautodot; /* do not automatically enable -A for root */
130 static int f_nofollow; /* don't follow symbolic link arguments */
131 int f_nonprint; /* show unprintables as ? */
132 static int f_nosort; /* don't sort output */
133 int f_notabs; /* don't use tab-separated multi-col output */
134 static int f_numericonly; /* don't convert uid/gid to name */
135 int f_octal; /* show unprintables as \xxx */
136 int f_octal_escape; /* like f_octal but use C escapes if possible */
137 static int f_recursive; /* ls subdirectories also */
138 static int f_reversesort; /* reverse whatever sort is used */
139 int f_samesort; /* sort time and name in same direction */
140 int f_sectime; /* print full time information */
141 static int f_singlecol; /* use single column output */
142 int f_size; /* list size in short listing */
143 static int f_sizesort;
144 int f_slash; /* similar to f_type, but only for dirs */
145 int f_sortacross; /* sort across rows, not down columns */
146 int f_statustime; /* use time of last mode change */
147 static int f_stream; /* stream the output, separate with commas */
148 int f_thousands; /* show file sizes with thousands separators */
149 char *f_timeformat; /* user-specified time format */
150 static int f_timesort; /* sort by time vice name */
151 int f_type; /* add type character for non-regular files */
152 static int f_whiteout; /* show whiteout entries */
153 #ifdef COLORLS
154 int colorflag = COLORFLAG_NEVER; /* passed in colorflag */
155 int f_color; /* add type in color for non-regular files */
156 bool explicitansi; /* Explicit ANSI sequences, no termcap(5) */
157 char *ansi_bgcol; /* ANSI sequence to set background colour */
158 char *ansi_fgcol; /* ANSI sequence to set foreground colour */
159 char *ansi_coloff; /* ANSI sequence to reset colours */
160 char *attrs_off; /* ANSI sequence to turn off attributes */
161 char *enter_bold; /* ANSI sequence to set color to bold 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:FGHILPRSTUWXZabcdfghiklmnopqrstuwxy,", 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 'w':
442 f_nonprint = 0;
443 f_octal = 0;
444 f_octal_escape = 0;
445 break;
446 case 'y':
447 f_samesort = 1;
448 break;
449 case COLOR_OPT:
450 #ifdef COLORLS
451 if (optarg == NULL || do_color_always(optarg))
452 colorflag = COLORFLAG_ALWAYS;
453 else if (do_color_auto(optarg))
454 colorflag = COLORFLAG_AUTO;
455 else if (do_color_never(optarg))
456 colorflag = COLORFLAG_NEVER;
457 else
458 errx(2, "unsupported --color value '%s' (must be always, auto, or never)",
459 optarg);
460 break;
461 #else
462 warnx("color support not compiled in");
463 #endif
464 default:
465 case '?':
466 usage();
467 }
468 }
469 argc -= optind;
470 argv += optind;
471
472 /* Root is -A automatically unless -I. */
473 if (!f_listdot && getuid() == (uid_t)0 && !f_noautodot)
474 f_listdot = 1;
475
476 /*
477 * Enabling of colours is conditional on the environment in conjunction
478 * with the --color and -G arguments, if supplied.
479 */
480 if (do_color()) {
481 #ifdef COLORLS
482 if ((term = getenv("TERM")) != NULL &&
483 tgetent(termcapbuf, term) == 1) {
484 ansi_fgcol = tgetstr("AF", &bp);
485 ansi_bgcol = tgetstr("AB", &bp);
486 attrs_off = tgetstr("me", &bp);
487 enter_bold = tgetstr("md", &bp);
488
489 /* To switch colours off use 'op' if
490 * available, otherwise use 'oc', or
491 * don't do colours at all. */
492 ansi_coloff = tgetstr("op", &bp);
493 if (!ansi_coloff)
494 ansi_coloff = tgetstr("oc", &bp);
495 if (ansi_fgcol && ansi_bgcol && ansi_coloff)
496 f_color = 1;
497 } else if (colorflag == COLORFLAG_ALWAYS) {
498 /*
499 * If we're *always* doing color but we don't have
500 * a functional TERM supplied, we'll fallback to
501 * outputting raw ANSI sequences.
502 */
503 f_color = 1;
504 explicitansi = true;
505 }
506 #endif /*COLORLS*/
507 }
508
509 #ifdef COLORLS
510 if (f_color) {
511 /*
512 * We can't put tabs and color sequences together:
513 * column number will be incremented incorrectly
514 * for "stty oxtabs" mode.
515 */
516 f_notabs = 1;
517 (void)signal(SIGINT, colorquit);
518 (void)signal(SIGQUIT, colorquit);
519 parsecolors(getenv("LSCOLORS"));
520 }
521 #endif
522
523 /*
524 * If not -F, -i, -l, -s, -S or -t options, don't require stat
525 * information, unless in color mode in which case we do
526 * need this to determine which colors to display.
527 */
528 if (!f_inode && !f_longform && !f_size && !f_timesort &&
529 !f_sizesort && !f_type
530 #ifdef COLORLS
531 && !f_color
532 #endif
533 )
534 fts_options |= FTS_NOSTAT;
535
536 /*
537 * If not -F, -P, -d or -l options, follow any symbolic links listed on
538 * the command line, unless in color mode in which case we need to
539 * distinguish file type for a symbolic link itself and its target.
540 */
541 if (!f_nofollow && !f_longform && !f_listdir && (!f_type || f_slash)
542 #ifdef COLORLS
543 && !f_color
544 #endif
545 )
546 fts_options |= FTS_COMFOLLOW;
547
548 /*
549 * If -W, show whiteout entries
550 */
551 #ifdef FTS_WHITEOUT
552 if (f_whiteout)
553 fts_options |= FTS_WHITEOUT;
554 #endif
555
556 /* If -i, -l or -s, figure out block size. */
557 if (f_inode || f_longform || f_size) {
558 if (f_kblocks)
559 blocksize = 2;
560 else {
561 (void)getbsize(¬used, &blocksize);
562 blocksize /= 512;
563 }
564 }
565 /* Select a sort function. */
566 if (f_reversesort) {
567 if (!f_timesort && !f_sizesort)
568 sortfcn = revnamecmp;
569 else if (f_sizesort)
570 sortfcn = revsizecmp;
571 else if (f_accesstime)
572 sortfcn = revacccmp;
573 else if (f_birthtime)
574 sortfcn = revbirthcmp;
575 else if (f_statustime)
576 sortfcn = revstatcmp;
577 else /* Use modification time. */
578 sortfcn = revmodcmp;
579 } else {
580 if (!f_timesort && !f_sizesort)
581 sortfcn = namecmp;
582 else if (f_sizesort)
583 sortfcn = sizecmp;
584 else if (f_accesstime)
585 sortfcn = acccmp;
586 else if (f_birthtime)
587 sortfcn = birthcmp;
588 else if (f_statustime)
589 sortfcn = statcmp;
590 else /* Use modification time. */
591 sortfcn = modcmp;
592 }
593
594 /* Select a print function. */
595 if (f_singlecol)
596 printfcn = printscol;
597 else if (f_longform)
598 printfcn = printlong;
599 else if (f_stream)
600 printfcn = printstream;
601 else
602 printfcn = printcol;
603
604 if (argc)
605 traverse(argc, argv, fts_options);
606 else
607 traverse(1, dotav, fts_options);
608 exit(rval);
609 }
610
611 static int output; /* If anything output. */
612
613 /*
614 * Traverse() walks the logical directory structure specified by the argv list
615 * in the order specified by the mastercmp() comparison function. During the
616 * traversal it passes linked lists of structures to display() which represent
617 * a superset (may be exact set) of the files to be displayed.
618 */
619 static void
traverse(int argc,char * argv[],int options)620 traverse(int argc, char *argv[], int options)
621 {
622 FTS *ftsp;
623 FTSENT *p, *chp;
624 int ch_options;
625
626 if ((ftsp =
627 fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL)
628 err(1, "fts_open");
629
630 /*
631 * We ignore errors from fts_children here since they will be
632 * replicated and signalled on the next call to fts_read() below.
633 */
634 chp = fts_children(ftsp, 0);
635 if (chp != NULL)
636 display(NULL, chp, options);
637 if (f_listdir)
638 return;
639
640 /*
641 * If not recursing down this tree and don't need stat info, just get
642 * the names.
643 */
644 ch_options = !f_recursive && !f_label &&
645 options & FTS_NOSTAT ? FTS_NAMEONLY : 0;
646
647 while (errno = 0, (p = fts_read(ftsp)) != NULL)
648 switch (p->fts_info) {
649 case FTS_DC:
650 warnx("%s: directory causes a cycle", p->fts_name);
651 break;
652 case FTS_DNR:
653 case FTS_ERR:
654 warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
655 rval = 1;
656 break;
657 case FTS_D:
658 if (p->fts_level != FTS_ROOTLEVEL &&
659 p->fts_name[0] == '.' && !f_listdot)
660 break;
661
662 /*
663 * If already output something, put out a newline as
664 * a separator. If multiple arguments, precede each
665 * directory with its name.
666 */
667 if (output) {
668 putchar('\n');
669 (void)printname(p->fts_path);
670 puts(":");
671 } else if (argc > 1) {
672 (void)printname(p->fts_path);
673 puts(":");
674 output = 1;
675 }
676 chp = fts_children(ftsp, ch_options);
677 display(p, chp, options);
678
679 if (!f_recursive && chp != NULL)
680 (void)fts_set(ftsp, p, FTS_SKIP);
681 break;
682 default:
683 break;
684 }
685 if (errno)
686 err(1, "fts_read");
687 }
688
689 /*
690 * Display() takes a linked list of FTSENT structures and passes the list
691 * along with any other necessary information to the print function. P
692 * points to the parent directory of the display list.
693 */
694 static void
display(const FTSENT * p,FTSENT * list,int options)695 display(const FTSENT *p, FTSENT *list, int options)
696 {
697 struct stat *sp;
698 DISPLAY d;
699 FTSENT *cur;
700 NAMES *np;
701 off_t maxsize;
702 long maxblock;
703 uintmax_t maxinode;
704 u_long btotal, labelstrlen, maxlen, maxnlink;
705 u_long maxlabelstr;
706 u_int sizelen;
707 int maxflags;
708 gid_t maxgroup;
709 uid_t maxuser;
710 size_t flen, ulen, glen;
711 char *initmax;
712 int entries, needstats;
713 const char *user, *group;
714 char *flags, *labelstr = NULL;
715 char ngroup[STRBUF_SIZEOF(uid_t) + 1];
716 char nuser[STRBUF_SIZEOF(gid_t) + 1];
717 u_long width[9];
718 int i;
719
720 needstats = f_inode || f_longform || f_size;
721 flen = 0;
722 btotal = 0;
723
724 #define LS_COLWIDTHS_FIELDS 9
725 initmax = getenv("LS_COLWIDTHS");
726
727 for (i = 0 ; i < LS_COLWIDTHS_FIELDS; i++)
728 width[i] = 0;
729
730 if (initmax != NULL) {
731 char *endp;
732
733 for (i = 0; i < LS_COLWIDTHS_FIELDS && *initmax != '\0'; i++) {
734 if (*initmax == ':') {
735 width[i] = 0;
736 } else {
737 width[i] = strtoul(initmax, &endp, 10);
738 initmax = endp;
739 while (isspace(*initmax))
740 initmax++;
741 if (*initmax != ':')
742 break;
743 initmax++;
744 }
745 }
746 if (i < LS_COLWIDTHS_FIELDS)
747 #ifdef COLORLS
748 if (!f_color)
749 #endif
750 f_notabs = 0;
751 }
752
753 /* Fields match -lios order. New ones should be added at the end. */
754 maxinode = width[0];
755 maxblock = width[1];
756 maxnlink = width[2];
757 maxuser = width[3];
758 maxgroup = width[4];
759 maxflags = width[5];
760 maxsize = width[6];
761 maxlen = width[7];
762 maxlabelstr = width[8];
763
764 MAKENINES(maxinode);
765 MAKENINES(maxblock);
766 MAKENINES(maxnlink);
767 MAKENINES(maxsize);
768
769 d.s_size = 0;
770 sizelen = 0;
771 flags = NULL;
772 for (cur = list, entries = 0; cur; cur = cur->fts_link) {
773 if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) {
774 warnx("%s: %s",
775 cur->fts_name, strerror(cur->fts_errno));
776 cur->fts_number = NO_PRINT;
777 rval = 1;
778 continue;
779 }
780 /*
781 * P is NULL if list is the argv list, to which different rules
782 * apply.
783 */
784 if (p == NULL) {
785 /* Directories will be displayed later. */
786 if (cur->fts_info == FTS_D && !f_listdir) {
787 cur->fts_number = NO_PRINT;
788 continue;
789 }
790 } else {
791 /* Only display dot file if -a/-A set. */
792 if (cur->fts_name[0] == '.' && !f_listdot) {
793 cur->fts_number = NO_PRINT;
794 continue;
795 }
796 }
797 if (cur->fts_namelen > maxlen)
798 maxlen = cur->fts_namelen;
799 if (f_octal || f_octal_escape) {
800 u_long t = len_octal(cur->fts_name, cur->fts_namelen);
801
802 if (t > maxlen)
803 maxlen = t;
804 }
805 if (needstats) {
806 sp = cur->fts_statp;
807 if (sp->st_blocks > maxblock)
808 maxblock = sp->st_blocks;
809 if (sp->st_ino > maxinode)
810 maxinode = sp->st_ino;
811 if (sp->st_nlink > maxnlink)
812 maxnlink = sp->st_nlink;
813 if (sp->st_size > maxsize)
814 maxsize = sp->st_size;
815
816 btotal += sp->st_blocks;
817 if (f_longform) {
818 if (f_numericonly) {
819 (void)snprintf(nuser, sizeof(nuser),
820 "%u", sp->st_uid);
821 (void)snprintf(ngroup, sizeof(ngroup),
822 "%u", sp->st_gid);
823 user = nuser;
824 group = ngroup;
825 } else {
826 user = user_from_uid(sp->st_uid, 0);
827 /*
828 * user_from_uid(..., 0) only returns
829 * NULL in OOM conditions. We could
830 * format the uid here, but (1) in
831 * general ls(1) exits on OOM, and (2)
832 * there is another allocation/exit
833 * path directly below, which will
834 * likely exit anyway.
835 */
836 if (user == NULL)
837 err(1, "user_from_uid");
838 group = group_from_gid(sp->st_gid, 0);
839 /* Ditto. */
840 if (group == NULL)
841 err(1, "group_from_gid");
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