1 /*-
2 * Copyright (c) 1989, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Michael Fischbein.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33 #ifndef lint
34 static const char copyright[] =
35 "@(#) Copyright (c) 1989, 1993, 1994\n\
36 The Regents of the University of California. All rights reserved.\n";
37 #endif /* not lint */
38
39 #if 0
40 #ifndef lint
41 static char sccsid[] = "@(#)ls.c 8.5 (Berkeley) 4/2/94";
42 #endif /* not lint */
43 #endif
44 #include <sys/cdefs.h>
45 __FBSDID("$FreeBSD: stable/10/bin/ls/ls.c 242840 2012-11-09 20:19:56Z peter $");
46
47 #include <sys/param.h>
48 #include <sys/stat.h>
49 #include <sys/ioctl.h>
50 #include <sys/mac.h>
51
52 #include <dirent.h>
53 #include <err.h>
54 #include <errno.h>
55 #include <fts.h>
56 #include <grp.h>
57 #include <inttypes.h>
58 #include <limits.h>
59 #include <locale.h>
60 #include <pwd.h>
61 #include <stdio.h>
62 #include <stdlib.h>
63 #include <string.h>
64 #include <unistd.h>
65 #ifdef COLORLS
66 #include <termcap.h>
67 #include <signal.h>
68 #endif
69
70 #include "ls.h"
71 #include "extern.h"
72
73 /*
74 * Upward approximation of the maximum number of characters needed to
75 * represent a value of integral type t as a string, excluding the
76 * NUL terminator, with provision for a sign.
77 */
78 #define STRBUF_SIZEOF(t) (1 + CHAR_BIT * sizeof(t) / 3 + 1)
79
80 /*
81 * MAKENINES(n) turns n into (10**n)-1. This is useful for converting a width
82 * into a number that wide in decimal.
83 * XXX: Overflows are not considered.
84 */
85 #define MAKENINES(n) \
86 do { \
87 intmax_t i; \
88 \
89 /* Use a loop as all values of n are small. */ \
90 for (i = 1; n > 0; i *= 10) \
91 n--; \
92 n = i - 1; \
93 } while(0)
94
95 static void display(const FTSENT *, FTSENT *, int);
96 static int mastercmp(const FTSENT * const *, const FTSENT * const *);
97 static void traverse(int, char **, int);
98
99 static void (*printfcn)(const DISPLAY *);
100 static int (*sortfcn)(const FTSENT *, const FTSENT *);
101
102 long blocksize; /* block size units */
103 int termwidth = 80; /* default terminal width */
104
105 /* flags */
106 int f_accesstime; /* use time of last access */
107 int f_birthtime; /* use time of birth */
108 int f_flags; /* show flags associated with a file */
109 int f_humanval; /* show human-readable file sizes */
110 int f_inode; /* print inode */
111 static int f_kblocks; /* print size in kilobytes */
112 int f_label; /* show MAC label */
113 static int f_listdir; /* list actual directory, not contents */
114 static int f_listdot; /* list files beginning with . */
115 int f_longform; /* long listing format */
116 static int f_noautodot; /* do not automatically enable -A for root */
117 static int f_nofollow; /* don't follow symbolic link arguments */
118 int f_nonprint; /* show unprintables as ? */
119 static int f_nosort; /* don't sort output */
120 int f_notabs; /* don't use tab-separated multi-col output */
121 static int f_numericonly; /* don't convert uid/gid to name */
122 int f_octal; /* show unprintables as \xxx */
123 int f_octal_escape; /* like f_octal but use C escapes if possible */
124 static int f_recursive; /* ls subdirectories also */
125 static int f_reversesort; /* reverse whatever sort is used */
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_statustime; /* use time of last mode change */
134 static int f_stream; /* stream the output, separate with commas */
135 int f_thousands; /* show file sizes with thousands separators */
136 char *f_timeformat; /* user-specified time format */
137 static int f_timesort; /* sort by time vice name */
138 int f_type; /* add type character for non-regular files */
139 static int f_whiteout; /* show whiteout entries */
140
141 #ifdef COLORLS
142 int f_color; /* add type in color for non-regular files */
143
144 char *ansi_bgcol; /* ANSI sequence to set background colour */
145 char *ansi_fgcol; /* ANSI sequence to set foreground colour */
146 char *ansi_coloff; /* ANSI sequence to reset colours */
147 char *attrs_off; /* ANSI sequence to turn off attributes */
148 char *enter_bold; /* ANSI sequence to set color to bold mode */
149 #endif
150
151 static int rval;
152
153 int
main(int argc,char * argv[])154 main(int argc, char *argv[])
155 {
156 static char dot[] = ".", *dotav[] = {dot, NULL};
157 struct winsize win;
158 int ch, fts_options, notused;
159 char *p;
160 #ifdef COLORLS
161 char termcapbuf[1024]; /* termcap definition buffer */
162 char tcapbuf[512]; /* capability buffer */
163 char *bp = tcapbuf;
164 #endif
165
166 (void)setlocale(LC_ALL, "");
167
168 /* Terminal defaults to -Cq, non-terminal defaults to -1. */
169 if (isatty(STDOUT_FILENO)) {
170 termwidth = 80;
171 if ((p = getenv("COLUMNS")) != NULL && *p != '\0')
172 termwidth = atoi(p);
173 else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) != -1 &&
174 win.ws_col > 0)
175 termwidth = win.ws_col;
176 f_nonprint = 1;
177 } else {
178 f_singlecol = 1;
179 /* retrieve environment variable, in case of explicit -C */
180 p = getenv("COLUMNS");
181 if (p)
182 termwidth = atoi(p);
183 }
184
185 fts_options = FTS_PHYSICAL;
186 if (getenv("LS_SAMESORT"))
187 f_samesort = 1;
188 while ((ch = getopt(argc, argv,
189 "1ABCD:FGHILPRSTUWXZabcdfghiklmnopqrstuwxy,")) != -1) {
190 switch (ch) {
191 /*
192 * The -1, -C, -x and -l options all override each other so
193 * shell aliasing works right.
194 */
195 case '1':
196 f_singlecol = 1;
197 f_longform = 0;
198 f_stream = 0;
199 break;
200 case 'C':
201 f_sortacross = f_longform = f_singlecol = 0;
202 break;
203 case 'l':
204 f_longform = 1;
205 f_singlecol = 0;
206 f_stream = 0;
207 break;
208 case 'x':
209 f_sortacross = 1;
210 f_longform = 0;
211 f_singlecol = 0;
212 break;
213 /* The -c, -u, and -U options override each other. */
214 case 'c':
215 f_statustime = 1;
216 f_accesstime = 0;
217 f_birthtime = 0;
218 break;
219 case 'u':
220 f_accesstime = 1;
221 f_statustime = 0;
222 f_birthtime = 0;
223 break;
224 case 'U':
225 f_birthtime = 1;
226 f_accesstime = 0;
227 f_statustime = 0;
228 break;
229 case 'a':
230 fts_options |= FTS_SEEDOT;
231 /* FALLTHROUGH */
232 case 'A':
233 f_listdot = 1;
234 break;
235 /* The -t and -S options override each other. */
236 case 'S':
237 f_sizesort = 1;
238 f_timesort = 0;
239 break;
240 case 't':
241 f_timesort = 1;
242 f_sizesort = 0;
243 break;
244 /* Other flags. Please keep alphabetic. */
245 case ',':
246 f_thousands = 1;
247 break;
248 case 'B':
249 f_nonprint = 0;
250 f_octal = 1;
251 f_octal_escape = 0;
252 break;
253 case 'D':
254 f_timeformat = optarg;
255 break;
256 case 'F':
257 f_type = 1;
258 f_slash = 0;
259 break;
260 case 'G':
261 setenv("CLICOLOR", "", 1);
262 break;
263 case 'H':
264 fts_options |= FTS_COMFOLLOW;
265 f_nofollow = 0;
266 break;
267 case 'I':
268 f_noautodot = 1;
269 break;
270 case 'L':
271 fts_options &= ~FTS_PHYSICAL;
272 fts_options |= FTS_LOGICAL;
273 f_nofollow = 0;
274 break;
275 case 'P':
276 fts_options &= ~FTS_COMFOLLOW;
277 fts_options &= ~FTS_LOGICAL;
278 fts_options |= FTS_PHYSICAL;
279 f_nofollow = 1;
280 break;
281 case 'R':
282 f_recursive = 1;
283 break;
284 case 'T':
285 f_sectime = 1;
286 break;
287 case 'W':
288 f_whiteout = 1;
289 break;
290 case 'Z':
291 f_label = 1;
292 break;
293 case 'b':
294 f_nonprint = 0;
295 f_octal = 0;
296 f_octal_escape = 1;
297 break;
298 /* The -d option turns off the -R option. */
299 case 'd':
300 f_listdir = 1;
301 f_recursive = 0;
302 break;
303 case 'f':
304 f_nosort = 1;
305 break;
306 case 'g': /* Compatibility with 4.3BSD. */
307 break;
308 case 'h':
309 f_humanval = 1;
310 break;
311 case 'i':
312 f_inode = 1;
313 break;
314 case 'k':
315 f_humanval = 0;
316 f_kblocks = 1;
317 break;
318 case 'm':
319 f_stream = 1;
320 f_singlecol = 0;
321 f_longform = 0;
322 break;
323 case 'n':
324 f_numericonly = 1;
325 break;
326 case 'o':
327 f_flags = 1;
328 break;
329 case 'p':
330 f_slash = 1;
331 f_type = 1;
332 break;
333 case 'q':
334 f_nonprint = 1;
335 f_octal = 0;
336 f_octal_escape = 0;
337 break;
338 case 'r':
339 f_reversesort = 1;
340 break;
341 case 's':
342 f_size = 1;
343 break;
344 case 'w':
345 f_nonprint = 0;
346 f_octal = 0;
347 f_octal_escape = 0;
348 break;
349 case 'y':
350 f_samesort = 1;
351 break;
352 default:
353 case '?':
354 usage();
355 }
356 }
357 argc -= optind;
358 argv += optind;
359
360 /* Root is -A automatically unless -I. */
361 if (!f_listdot && getuid() == (uid_t)0 && !f_noautodot)
362 f_listdot = 1;
363
364 /* Enabling of colours is conditional on the environment. */
365 if (getenv("CLICOLOR") &&
366 (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE")))
367 #ifdef COLORLS
368 if (tgetent(termcapbuf, getenv("TERM")) == 1) {
369 ansi_fgcol = tgetstr("AF", &bp);
370 ansi_bgcol = tgetstr("AB", &bp);
371 attrs_off = tgetstr("me", &bp);
372 enter_bold = tgetstr("md", &bp);
373
374 /* To switch colours off use 'op' if
375 * available, otherwise use 'oc', or
376 * don't do colours at all. */
377 ansi_coloff = tgetstr("op", &bp);
378 if (!ansi_coloff)
379 ansi_coloff = tgetstr("oc", &bp);
380 if (ansi_fgcol && ansi_bgcol && ansi_coloff)
381 f_color = 1;
382 }
383 #else
384 warnx("color support not compiled in");
385 #endif /*COLORLS*/
386
387 #ifdef COLORLS
388 if (f_color) {
389 /*
390 * We can't put tabs and color sequences together:
391 * column number will be incremented incorrectly
392 * for "stty oxtabs" mode.
393 */
394 f_notabs = 1;
395 (void)signal(SIGINT, colorquit);
396 (void)signal(SIGQUIT, colorquit);
397 parsecolors(getenv("LSCOLORS"));
398 }
399 #endif
400
401 /*
402 * If not -F, -i, -l, -s, -S or -t options, don't require stat
403 * information, unless in color mode in which case we do
404 * need this to determine which colors to display.
405 */
406 if (!f_inode && !f_longform && !f_size && !f_timesort &&
407 !f_sizesort && !f_type
408 #ifdef COLORLS
409 && !f_color
410 #endif
411 )
412 fts_options |= FTS_NOSTAT;
413
414 /*
415 * If not -F, -P, -d or -l options, follow any symbolic links listed on
416 * the command line.
417 */
418 if (!f_nofollow && !f_longform && !f_listdir && (!f_type || f_slash))
419 fts_options |= FTS_COMFOLLOW;
420
421 /*
422 * If -W, show whiteout entries
423 */
424 #ifdef FTS_WHITEOUT
425 if (f_whiteout)
426 fts_options |= FTS_WHITEOUT;
427 #endif
428
429 /* If -i, -l or -s, figure out block size. */
430 if (f_inode || f_longform || f_size) {
431 if (f_kblocks)
432 blocksize = 2;
433 else {
434 (void)getbsize(¬used, &blocksize);
435 blocksize /= 512;
436 }
437 }
438 /* Select a sort function. */
439 if (f_reversesort) {
440 if (!f_timesort && !f_sizesort)
441 sortfcn = revnamecmp;
442 else if (f_sizesort)
443 sortfcn = revsizecmp;
444 else if (f_accesstime)
445 sortfcn = revacccmp;
446 else if (f_birthtime)
447 sortfcn = revbirthcmp;
448 else if (f_statustime)
449 sortfcn = revstatcmp;
450 else /* Use modification time. */
451 sortfcn = revmodcmp;
452 } else {
453 if (!f_timesort && !f_sizesort)
454 sortfcn = namecmp;
455 else if (f_sizesort)
456 sortfcn = sizecmp;
457 else if (f_accesstime)
458 sortfcn = acccmp;
459 else if (f_birthtime)
460 sortfcn = birthcmp;
461 else if (f_statustime)
462 sortfcn = statcmp;
463 else /* Use modification time. */
464 sortfcn = modcmp;
465 }
466
467 /* Select a print function. */
468 if (f_singlecol)
469 printfcn = printscol;
470 else if (f_longform)
471 printfcn = printlong;
472 else if (f_stream)
473 printfcn = printstream;
474 else
475 printfcn = printcol;
476
477 if (argc)
478 traverse(argc, argv, fts_options);
479 else
480 traverse(1, dotav, fts_options);
481 exit(rval);
482 }
483
484 static int output; /* If anything output. */
485
486 /*
487 * Traverse() walks the logical directory structure specified by the argv list
488 * in the order specified by the mastercmp() comparison function. During the
489 * traversal it passes linked lists of structures to display() which represent
490 * a superset (may be exact set) of the files to be displayed.
491 */
492 static void
traverse(int argc,char * argv[],int options)493 traverse(int argc, char *argv[], int options)
494 {
495 FTS *ftsp;
496 FTSENT *p, *chp;
497 int ch_options;
498
499 if ((ftsp =
500 fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL)
501 err(1, "fts_open");
502
503 /*
504 * We ignore errors from fts_children here since they will be
505 * replicated and signalled on the next call to fts_read() below.
506 */
507 chp = fts_children(ftsp, 0);
508 if (chp != NULL)
509 display(NULL, chp, options);
510 if (f_listdir)
511 return;
512
513 /*
514 * If not recursing down this tree and don't need stat info, just get
515 * the names.
516 */
517 ch_options = !f_recursive && !f_label &&
518 options & FTS_NOSTAT ? FTS_NAMEONLY : 0;
519
520 while ((p = fts_read(ftsp)) != NULL)
521 switch (p->fts_info) {
522 case FTS_DC:
523 warnx("%s: directory causes a cycle", p->fts_name);
524 break;
525 case FTS_DNR:
526 case FTS_ERR:
527 warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
528 rval = 1;
529 break;
530 case FTS_D:
531 if (p->fts_level != FTS_ROOTLEVEL &&
532 p->fts_name[0] == '.' && !f_listdot)
533 break;
534
535 /*
536 * If already output something, put out a newline as
537 * a separator. If multiple arguments, precede each
538 * directory with its name.
539 */
540 if (output) {
541 putchar('\n');
542 (void)printname(p->fts_path);
543 puts(":");
544 } else if (argc > 1) {
545 (void)printname(p->fts_path);
546 puts(":");
547 output = 1;
548 }
549 chp = fts_children(ftsp, ch_options);
550 display(p, chp, options);
551
552 if (!f_recursive && chp != NULL)
553 (void)fts_set(ftsp, p, FTS_SKIP);
554 break;
555 default:
556 break;
557 }
558 if (errno)
559 err(1, "fts_read");
560 }
561
562 /*
563 * Display() takes a linked list of FTSENT structures and passes the list
564 * along with any other necessary information to the print function. P
565 * points to the parent directory of the display list.
566 */
567 static void
display(const FTSENT * p,FTSENT * list,int options)568 display(const FTSENT *p, FTSENT *list, int options)
569 {
570 struct stat *sp;
571 DISPLAY d;
572 FTSENT *cur;
573 NAMES *np;
574 off_t maxsize;
575 long maxblock;
576 uintmax_t maxinode;
577 u_long btotal, labelstrlen, maxlen, maxnlink;
578 u_long maxlabelstr;
579 u_int sizelen;
580 int maxflags;
581 gid_t maxgroup;
582 uid_t maxuser;
583 size_t flen, ulen, glen;
584 char *initmax;
585 int entries, needstats;
586 const char *user, *group;
587 char *flags, *labelstr = NULL;
588 char ngroup[STRBUF_SIZEOF(uid_t) + 1];
589 char nuser[STRBUF_SIZEOF(gid_t) + 1];
590
591 needstats = f_inode || f_longform || f_size;
592 flen = 0;
593 btotal = 0;
594 initmax = getenv("LS_COLWIDTHS");
595 /* Fields match -lios order. New ones should be added at the end. */
596 maxlabelstr = maxblock = maxlen = maxnlink = 0;
597 maxuser = maxgroup = maxflags = maxsize = 0;
598 maxinode = 0;
599 if (initmax != NULL && *initmax != '\0') {
600 char *initmax2, *jinitmax;
601 int ninitmax;
602
603 /* Fill-in "::" as "0:0:0" for the sake of scanf. */
604 jinitmax = malloc(strlen(initmax) * 2 + 2);
605 if (jinitmax == NULL)
606 err(1, "malloc");
607 initmax2 = jinitmax;
608 if (*initmax == ':')
609 strcpy(initmax2, "0:"), initmax2 += 2;
610 else
611 *initmax2++ = *initmax, *initmax2 = '\0';
612 for (initmax++; *initmax != '\0'; initmax++) {
613 if (initmax[-1] == ':' && initmax[0] == ':') {
614 *initmax2++ = '0';
615 *initmax2++ = initmax[0];
616 initmax2[1] = '\0';
617 } else {
618 *initmax2++ = initmax[0];
619 initmax2[1] = '\0';
620 }
621 }
622 if (initmax2[-1] == ':')
623 strcpy(initmax2, "0");
624
625 ninitmax = sscanf(jinitmax,
626 " %ju : %ld : %lu : %u : %u : %i : %jd : %lu : %lu ",
627 &maxinode, &maxblock, &maxnlink, &maxuser,
628 &maxgroup, &maxflags, &maxsize, &maxlen, &maxlabelstr);
629 f_notabs = 1;
630 switch (ninitmax) {
631 case 0:
632 maxinode = 0;
633 /* FALLTHROUGH */
634 case 1:
635 maxblock = 0;
636 /* FALLTHROUGH */
637 case 2:
638 maxnlink = 0;
639 /* FALLTHROUGH */
640 case 3:
641 maxuser = 0;
642 /* FALLTHROUGH */
643 case 4:
644 maxgroup = 0;
645 /* FALLTHROUGH */
646 case 5:
647 maxflags = 0;
648 /* FALLTHROUGH */
649 case 6:
650 maxsize = 0;
651 /* FALLTHROUGH */
652 case 7:
653 maxlen = 0;
654 /* FALLTHROUGH */
655 case 8:
656 maxlabelstr = 0;
657 /* FALLTHROUGH */
658 #ifdef COLORLS
659 if (!f_color)
660 #endif
661 f_notabs = 0;
662 /* FALLTHROUGH */
663 default:
664 break;
665 }
666 MAKENINES(maxinode);
667 MAKENINES(maxblock);
668 MAKENINES(maxnlink);
669 MAKENINES(maxsize);
670 free(jinitmax);
671 }
672 d.s_size = 0;
673 sizelen = 0;
674 flags = NULL;
675 for (cur = list, entries = 0; cur; cur = cur->fts_link) {
676 if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) {
677 warnx("%s: %s",
678 cur->fts_name, strerror(cur->fts_errno));
679 cur->fts_number = NO_PRINT;
680 rval = 1;
681 continue;
682 }
683 /*
684 * P is NULL if list is the argv list, to which different rules
685 * apply.
686 */
687 if (p == NULL) {
688 /* Directories will be displayed later. */
689 if (cur->fts_info == FTS_D && !f_listdir) {
690 cur->fts_number = NO_PRINT;
691 continue;
692 }
693 } else {
694 /* Only display dot file if -a/-A set. */
695 if (cur->fts_name[0] == '.' && !f_listdot) {
696 cur->fts_number = NO_PRINT;
697 continue;
698 }
699 }
700 if (cur->fts_namelen > maxlen)
701 maxlen = cur->fts_namelen;
702 if (f_octal || f_octal_escape) {
703 u_long t = len_octal(cur->fts_name, cur->fts_namelen);
704
705 if (t > maxlen)
706 maxlen = t;
707 }
708 if (needstats) {
709 sp = cur->fts_statp;
710 if (sp->st_blocks > maxblock)
711 maxblock = sp->st_blocks;
712 if (sp->st_ino > maxinode)
713 maxinode = sp->st_ino;
714 if (sp->st_nlink > maxnlink)
715 maxnlink = sp->st_nlink;
716 if (sp->st_size > maxsize)
717 maxsize = sp->st_size;
718
719 btotal += sp->st_blocks;
720 if (f_longform) {
721 if (f_numericonly) {
722 (void)snprintf(nuser, sizeof(nuser),
723 "%u", sp->st_uid);
724 (void)snprintf(ngroup, sizeof(ngroup),
725 "%u", sp->st_gid);
726 user = nuser;
727 group = ngroup;
728 } else {
729 user = user_from_uid(sp->st_uid, 0);
730 group = group_from_gid(sp->st_gid, 0);
731 }
732 if ((ulen = strlen(user)) > maxuser)
733 maxuser = ulen;
734 if ((glen = strlen(group)) > maxgroup)
735 maxgroup = glen;
736 if (f_flags) {
737 flags = fflagstostr(sp->st_flags);
738 if (flags != NULL && *flags == '\0') {
739 free(flags);
740 flags = strdup("-");
741 }
742 if (flags == NULL)
743 err(1, "fflagstostr");
744 flen = strlen(flags);
745 if (flen > (size_t)maxflags)
746 maxflags = flen;
747 } else
748 flen = 0;
749 labelstr = NULL;
750 if (f_label) {
751 char name[PATH_MAX + 1];
752 mac_t label;
753 int error;
754
755 error = mac_prepare_file_label(&label);
756 if (error == -1) {
757 warn("MAC label for %s/%s",
758 cur->fts_parent->fts_path,
759 cur->fts_name);
760 goto label_out;
761 }
762
763 if (cur->fts_level == FTS_ROOTLEVEL)
764 snprintf(name, sizeof(name),
765 "%s", cur->fts_name);
766 else
767 snprintf(name, sizeof(name),
768 "%s/%s", cur->fts_parent->
769 fts_accpath, cur->fts_name);
770
771 if (options & FTS_LOGICAL)
772 error = mac_get_file(name,
773 label);
774 else
775 error = mac_get_link(name,
776 label);
777 if (error == -1) {
778 warn("MAC label for %s/%s",
779 cur->fts_parent->fts_path,
780 cur->fts_name);
781 mac_free(label);
782 goto label_out;
783 }
784
785 error = mac_to_text(label,
786 &labelstr);
787 if (error == -1) {
788 warn("MAC label for %s/%s",
789 cur->fts_parent->fts_path,
790 cur->fts_name);
791 mac_free(label);
792 goto label_out;
793 }
794 mac_free(label);
795 label_out:
796 if (labelstr == NULL)
797 labelstr = strdup("-");
798 labelstrlen = strlen(labelstr);
799 if (labelstrlen > maxlabelstr)
800 maxlabelstr = labelstrlen;
801 } else
802 labelstrlen = 0;
803
804 if ((np = malloc(sizeof(NAMES) + labelstrlen +
805 ulen + glen + flen + 4)) == NULL)
806 err(1, "malloc");
807
808 np->user = &np->data[0];
809 (void)strcpy(np->user, user);
810 np->group = &np->data[ulen + 1];
811 (void)strcpy(np->group, group);
812
813 if (S_ISCHR(sp->st_mode) ||
814 S_ISBLK(sp->st_mode)) {
815 sizelen = snprintf(NULL, 0,
816 "%#jx", (uintmax_t)sp->st_rdev);
817 if (d.s_size < sizelen)
818 d.s_size = sizelen;
819 }
820
821 if (f_flags) {
822 np->flags = &np->data[ulen + glen + 2];
823 (void)strcpy(np->flags, flags);
824 free(flags);
825 }
826 if (f_label) {
827 np->label = &np->data[ulen + glen + 2
828 + (f_flags ? flen + 1 : 0)];
829 (void)strcpy(np->label, labelstr);
830 free(labelstr);
831 }
832 cur->fts_pointer = np;
833 }
834 }
835 ++entries;
836 }
837
838 /*
839 * If there are no entries to display, we normally stop right
840 * here. However, we must continue if we have to display the
841 * total block count. In this case, we display the total only
842 * on the second (p != NULL) pass.
843 */
844 if (!entries && (!(f_longform || f_size) || p == NULL))
845 return;
846
847 d.list = list;
848 d.entries = entries;
849 d.maxlen = maxlen;
850 if (needstats) {
851 d.btotal = btotal;
852 d.s_block = snprintf(NULL, 0, "%lu", howmany(maxblock, blocksize));
853 d.s_flags = maxflags;
854 d.s_label = maxlabelstr;
855 d.s_group = maxgroup;
856 d.s_inode = snprintf(NULL, 0, "%ju", maxinode);
857 d.s_nlink = snprintf(NULL, 0, "%lu", maxnlink);
858 sizelen = f_humanval ? HUMANVALSTR_LEN :
859 snprintf(NULL, 0, "%ju", maxsize);
860 if (d.s_size < sizelen)
861 d.s_size = sizelen;
862 d.s_user = maxuser;
863 }
864 if (f_thousands) /* make space for commas */
865 d.s_size += (d.s_size - 1) / 3;
866 printfcn(&d);
867 output = 1;
868
869 if (f_longform)
870 for (cur = list; cur; cur = cur->fts_link)
871 free(cur->fts_pointer);
872 }
873
874 /*
875 * Ordering for mastercmp:
876 * If ordering the argv (fts_level = FTS_ROOTLEVEL) return non-directories
877 * as larger than directories. Within either group, use the sort function.
878 * All other levels use the sort function. Error entries remain unsorted.
879 */
880 static int
mastercmp(const FTSENT * const * a,const FTSENT * const * b)881 mastercmp(const FTSENT * const *a, const FTSENT * const *b)
882 {
883 int a_info, b_info;
884
885 a_info = (*a)->fts_info;
886 if (a_info == FTS_ERR)
887 return (0);
888 b_info = (*b)->fts_info;
889 if (b_info == FTS_ERR)
890 return (0);
891
892 if (a_info == FTS_NS || b_info == FTS_NS)
893 return (namecmp(*a, *b));
894
895 if (a_info != b_info &&
896 (*a)->fts_level == FTS_ROOTLEVEL && !f_listdir) {
897 if (a_info == FTS_D)
898 return (1);
899 if (b_info == FTS_D)
900 return (-1);
901 }
902 return (sortfcn(*a, *b));
903 }
904