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/acl.h>
38
39 #include <err.h>
40 #include <errno.h>
41 #include <fts.h>
42 #include <langinfo.h>
43 #include <libutil.h>
44 #include <limits.h>
45 #include <stdio.h>
46 #include <stdint.h>
47 #include <stdlib.h>
48 #include <string.h>
49 #include <time.h>
50 #include <unistd.h>
51 #include <wchar.h>
52 #ifdef COLORLS
53 #include <ctype.h>
54 #include <termcap.h>
55 #include <signal.h>
56 #endif
57
58 #include "ls.h"
59 #include "extern.h"
60
61 static int printaname(const FTSENT *, u_long, u_long);
62 static void printdev(size_t, dev_t);
63 static void printlink(const FTSENT *);
64 static void printtime(time_t);
65 static int printtype(u_int);
66 static void printsize(size_t, off_t);
67 #ifdef COLORLS
68 static void endcolor_termcap(int);
69 static void endcolor_ansi(void);
70 static void endcolor(int);
71 static int colortype(mode_t);
72 #endif
73 static void aclmode(char *, const FTSENT *);
74
75 #define IS_NOPRINT(p) ((p)->fts_number == NO_PRINT)
76
77 #ifdef COLORLS
78 /* Most of these are taken from <sys/stat.h> */
79 typedef enum Colors {
80 C_DIR, /* directory */
81 C_LNK, /* symbolic link */
82 C_SOCK, /* socket */
83 C_FIFO, /* pipe */
84 C_EXEC, /* executable */
85 C_BLK, /* block special */
86 C_CHR, /* character special */
87 C_SUID, /* setuid executable */
88 C_SGID, /* setgid executable */
89 C_WSDIR, /* directory writeble to others, with sticky
90 * bit */
91 C_WDIR, /* directory writeble to others, without
92 * sticky bit */
93 C_NUMCOLORS /* just a place-holder */
94 } Colors;
95
96 static const char *defcolors = "exfxcxdxbxegedabagacad";
97
98 /* colors for file types */
99 static struct {
100 int num[2];
101 bool bold;
102 bool underline;
103 } colors[C_NUMCOLORS];
104 #endif
105
106 static size_t padding_for_month[12];
107 static size_t month_max_size = 0;
108
109 void
printscol(const DISPLAY * dp)110 printscol(const DISPLAY *dp)
111 {
112 FTSENT *p;
113
114 for (p = dp->list; p; p = p->fts_link) {
115 if (IS_NOPRINT(p))
116 continue;
117 (void)printaname(p, dp->s_inode, dp->s_block);
118 (void)putchar('\n');
119 }
120 }
121
122 /*
123 * print name in current style
124 */
125 int
printname(const char * name)126 printname(const char *name)
127 {
128 if (f_octal || f_octal_escape)
129 return prn_octal(name);
130 else if (f_nonprint)
131 return prn_printable(name);
132 else
133 return prn_normal(name);
134 }
135
136 static const char *
get_abmon(int mon)137 get_abmon(int mon)
138 {
139
140 switch (mon) {
141 case 0: return (nl_langinfo(ABMON_1));
142 case 1: return (nl_langinfo(ABMON_2));
143 case 2: return (nl_langinfo(ABMON_3));
144 case 3: return (nl_langinfo(ABMON_4));
145 case 4: return (nl_langinfo(ABMON_5));
146 case 5: return (nl_langinfo(ABMON_6));
147 case 6: return (nl_langinfo(ABMON_7));
148 case 7: return (nl_langinfo(ABMON_8));
149 case 8: return (nl_langinfo(ABMON_9));
150 case 9: return (nl_langinfo(ABMON_10));
151 case 10: return (nl_langinfo(ABMON_11));
152 case 11: return (nl_langinfo(ABMON_12));
153 }
154
155 /* should never happen */
156 abort();
157 }
158
159 static size_t
mbswidth(const char * month)160 mbswidth(const char *month)
161 {
162 wchar_t wc;
163 size_t width, donelen, clen, w;
164
165 width = donelen = 0;
166 while ((clen = mbrtowc(&wc, month + donelen, MB_LEN_MAX, NULL)) != 0) {
167 if (clen == (size_t)-1 || clen == (size_t)-2)
168 return (-1);
169 donelen += clen;
170 if ((w = wcwidth(wc)) == (size_t)-1)
171 return (-1);
172 width += w;
173 }
174
175 return (width);
176 }
177
178 static void
compute_abbreviated_month_size(void)179 compute_abbreviated_month_size(void)
180 {
181 int i;
182 size_t width;
183 size_t months_width[12];
184
185 for (i = 0; i < 12; i++) {
186 width = mbswidth(get_abmon(i));
187 if (width == (size_t)-1) {
188 month_max_size = -1;
189 return;
190 }
191 months_width[i] = width;
192 if (width > month_max_size)
193 month_max_size = width;
194 }
195
196 for (i = 0; i < 12; i++)
197 padding_for_month[i] = month_max_size - months_width[i];
198 }
199
200 void
printlong(const DISPLAY * dp)201 printlong(const DISPLAY *dp)
202 {
203 struct stat *sp;
204 FTSENT *p;
205 NAMES *np;
206 char buf[20];
207 #ifdef COLORLS
208 int color_printed = 0;
209 #endif
210
211 if ((dp->list == NULL || dp->list->fts_level != FTS_ROOTLEVEL) &&
212 (f_longform || f_size)) {
213 (void)printf("total %lu\n", howmany(dp->btotal, blocksize));
214 }
215
216 for (p = dp->list; p; p = p->fts_link) {
217 if (IS_NOPRINT(p))
218 continue;
219 sp = p->fts_statp;
220 if (f_inode)
221 (void)printf("%*ju ",
222 dp->s_inode, (uintmax_t)sp->st_ino);
223 if (f_size)
224 (void)printf("%*jd ",
225 dp->s_block, howmany(sp->st_blocks, blocksize));
226 strmode(sp->st_mode, buf);
227 aclmode(buf, p);
228 np = p->fts_pointer;
229 (void)printf("%s %*ju ", buf, dp->s_nlink,
230 (uintmax_t)sp->st_nlink);
231 if (!f_sowner)
232 (void)printf("%-*s ", dp->s_user, np->user);
233 (void)printf("%-*s ", dp->s_group, np->group);
234 if (f_flags)
235 (void)printf("%-*s ", dp->s_flags, np->flags);
236 if (f_label)
237 (void)printf("%-*s ", dp->s_label, np->label);
238 if (S_ISCHR(sp->st_mode) || S_ISBLK(sp->st_mode))
239 printdev(dp->s_size, sp->st_rdev);
240 else
241 printsize(dp->s_size, sp->st_size);
242 if (f_accesstime)
243 printtime(sp->st_atime);
244 else if (f_birthtime)
245 printtime(sp->st_birthtime);
246 else if (f_statustime)
247 printtime(sp->st_ctime);
248 else
249 printtime(sp->st_mtime);
250 #ifdef COLORLS
251 if (f_color)
252 color_printed = colortype(sp->st_mode);
253 #endif
254 (void)printname(p->fts_name);
255 #ifdef COLORLS
256 if (f_color && color_printed)
257 endcolor(0);
258 #endif
259 if (f_type)
260 (void)printtype(sp->st_mode);
261 if (S_ISLNK(sp->st_mode))
262 printlink(p);
263 (void)putchar('\n');
264 }
265 }
266
267 void
printstream(const DISPLAY * dp)268 printstream(const DISPLAY *dp)
269 {
270 FTSENT *p;
271 int chcnt;
272
273 for (p = dp->list, chcnt = 0; p; p = p->fts_link) {
274 if (p->fts_number == NO_PRINT)
275 continue;
276 /* XXX strlen does not take octal escapes into account. */
277 if (strlen(p->fts_name) + chcnt +
278 (p->fts_link ? 2 : 0) >= (unsigned)termwidth) {
279 putchar('\n');
280 chcnt = 0;
281 }
282 chcnt += printaname(p, dp->s_inode, dp->s_block);
283 if (p->fts_link) {
284 printf(", ");
285 chcnt += 2;
286 }
287 }
288 if (chcnt)
289 putchar('\n');
290 }
291
292 void
printcol(const DISPLAY * dp)293 printcol(const DISPLAY *dp)
294 {
295 static FTSENT **array;
296 static int lastentries = -1;
297 FTSENT *p;
298 FTSENT **narray;
299 int base;
300 int chcnt;
301 int cnt;
302 int col;
303 int colwidth;
304 int endcol;
305 int num;
306 int numcols;
307 int numrows;
308 int row;
309 int tabwidth;
310
311 if (f_notabs)
312 tabwidth = 1;
313 else
314 tabwidth = 8;
315
316 /*
317 * Have to do random access in the linked list -- build a table
318 * of pointers.
319 */
320 if (dp->entries > lastentries) {
321 if ((narray =
322 realloc(array, dp->entries * sizeof(FTSENT *))) == NULL) {
323 warn(NULL);
324 printscol(dp);
325 return;
326 }
327 lastentries = dp->entries;
328 array = narray;
329 }
330 for (p = dp->list, num = 0; p; p = p->fts_link)
331 if (p->fts_number != NO_PRINT)
332 array[num++] = p;
333
334 colwidth = dp->maxlen;
335 if (f_inode)
336 colwidth += dp->s_inode + 1;
337 if (f_size)
338 colwidth += dp->s_block + 1;
339 if (f_type)
340 colwidth += 1;
341
342 colwidth = (colwidth + tabwidth) & ~(tabwidth - 1);
343 if (termwidth < 2 * colwidth) {
344 printscol(dp);
345 return;
346 }
347 numcols = termwidth / colwidth;
348 numrows = num / numcols;
349 if (num % numcols)
350 ++numrows;
351
352 if ((dp->list == NULL || dp->list->fts_level != FTS_ROOTLEVEL) &&
353 (f_longform || f_size)) {
354 (void)printf("total %lu\n", howmany(dp->btotal, blocksize));
355 }
356
357 base = 0;
358 for (row = 0; row < numrows; ++row) {
359 endcol = colwidth;
360 if (!f_sortacross)
361 base = row;
362 for (col = 0, chcnt = 0; col < numcols; ++col) {
363 chcnt += printaname(array[base], dp->s_inode,
364 dp->s_block);
365 if (f_sortacross)
366 base++;
367 else
368 base += numrows;
369 if (base >= num)
370 break;
371 while ((cnt = ((chcnt + tabwidth) & ~(tabwidth - 1)))
372 <= endcol) {
373 if (f_sortacross && col + 1 >= numcols)
374 break;
375 (void)putchar(f_notabs ? ' ' : '\t');
376 chcnt = cnt;
377 }
378 endcol += colwidth;
379 }
380 (void)putchar('\n');
381 }
382 }
383
384 /*
385 * print [inode] [size] name
386 * return # of characters printed, no trailing characters.
387 */
388 static int
printaname(const FTSENT * p,u_long inodefield,u_long sizefield)389 printaname(const FTSENT *p, u_long inodefield, u_long sizefield)
390 {
391 struct stat *sp;
392 int chcnt;
393 #ifdef COLORLS
394 int color_printed = 0;
395 #endif
396
397 sp = p->fts_statp;
398 chcnt = 0;
399 if (f_inode)
400 chcnt += printf("%*ju ",
401 (int)inodefield, (uintmax_t)sp->st_ino);
402 if (f_size)
403 chcnt += printf("%*jd ",
404 (int)sizefield, howmany(sp->st_blocks, blocksize));
405 #ifdef COLORLS
406 if (f_color)
407 color_printed = colortype(sp->st_mode);
408 #endif
409 chcnt += printname(p->fts_name);
410 #ifdef COLORLS
411 if (f_color && color_printed)
412 endcolor(0);
413 #endif
414 if (f_type)
415 chcnt += printtype(sp->st_mode);
416 return (chcnt);
417 }
418
419 /*
420 * Print device special file major and minor numbers.
421 */
422 static void
printdev(size_t width,dev_t dev)423 printdev(size_t width, dev_t dev)
424 {
425
426 (void)printf("%#*jx ", (u_int)width, (uintmax_t)dev);
427 }
428
429 static void
ls_strftime(char * str,size_t len,const char * fmt,const struct tm * tm)430 ls_strftime(char *str, size_t len, const char *fmt, const struct tm *tm)
431 {
432 char *posb, nfmt[BUFSIZ];
433 const char *format = fmt;
434
435 if ((posb = strstr(fmt, "%b")) != NULL) {
436 if (month_max_size == 0) {
437 compute_abbreviated_month_size();
438 }
439 if (month_max_size > 0 && tm != NULL) {
440 snprintf(nfmt, sizeof(nfmt), "%.*s%s%*s%s",
441 (int)(posb - fmt), fmt,
442 get_abmon(tm->tm_mon),
443 (int)padding_for_month[tm->tm_mon],
444 "",
445 posb + 2);
446 format = nfmt;
447 }
448 }
449 if (tm != NULL)
450 strftime(str, len, format, tm);
451 else
452 strlcpy(str, "bad date val", len);
453 }
454
455 static void
printtime(time_t ftime)456 printtime(time_t ftime)
457 {
458 char longstring[80];
459 static time_t now = 0;
460 const char *format;
461 static int d_first = -1;
462
463 if (d_first < 0)
464 d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
465 if (now == 0)
466 now = time(NULL);
467
468 #define SIXMONTHS ((365 / 2) * 86400)
469 if (f_timeformat) /* user specified format */
470 format = f_timeformat;
471 else if (f_sectime)
472 /* mmm dd hh:mm:ss yyyy || dd mmm hh:mm:ss yyyy */
473 format = d_first ? "%e %b %T %Y" : "%b %e %T %Y";
474 else if (ftime + SIXMONTHS > now && ftime < now + SIXMONTHS)
475 /* mmm dd hh:mm || dd mmm hh:mm */
476 format = d_first ? "%e %b %R" : "%b %e %R";
477 else
478 /* mmm dd yyyy || dd mmm yyyy */
479 format = d_first ? "%e %b %Y" : "%b %e %Y";
480 ls_strftime(longstring, sizeof(longstring), format, localtime(&ftime));
481 fputs(longstring, stdout);
482 fputc(' ', stdout);
483 }
484
485 static int
printtype(u_int mode)486 printtype(u_int mode)
487 {
488
489 if (f_slash) {
490 if ((mode & S_IFMT) == S_IFDIR) {
491 (void)putchar('/');
492 return (1);
493 }
494 return (0);
495 }
496
497 switch (mode & S_IFMT) {
498 case S_IFDIR:
499 (void)putchar('/');
500 return (1);
501 case S_IFIFO:
502 (void)putchar('|');
503 return (1);
504 case S_IFLNK:
505 (void)putchar('@');
506 return (1);
507 case S_IFSOCK:
508 (void)putchar('=');
509 return (1);
510 case S_IFWHT:
511 (void)putchar('%');
512 return (1);
513 default:
514 break;
515 }
516 if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) {
517 (void)putchar('*');
518 return (1);
519 }
520 return (0);
521 }
522
523 #ifdef COLORLS
524 static int
putch(int c)525 putch(int c)
526 {
527 (void)putchar(c);
528 return 0;
529 }
530
531 static int
writech(int c)532 writech(int c)
533 {
534 char tmp = (char)c;
535
536 (void)write(STDOUT_FILENO, &tmp, 1);
537 return 0;
538 }
539
540 static void
printcolor_termcap(Colors c)541 printcolor_termcap(Colors c)
542 {
543 char *ansiseq;
544
545 if (colors[c].bold)
546 tputs(enter_bold, 1, putch);
547 if (colors[c].underline)
548 tputs(enter_underline, 1, putch);
549
550 if (colors[c].num[0] != -1) {
551 ansiseq = tgoto(ansi_fgcol, 0, colors[c].num[0]);
552 if (ansiseq)
553 tputs(ansiseq, 1, putch);
554 }
555 if (colors[c].num[1] != -1) {
556 ansiseq = tgoto(ansi_bgcol, 0, colors[c].num[1]);
557 if (ansiseq)
558 tputs(ansiseq, 1, putch);
559 }
560 }
561
562 static void
printcolor_ansi(Colors c)563 printcolor_ansi(Colors c)
564 {
565
566 printf("\033[");
567
568 if (colors[c].bold)
569 printf("1");
570 if (colors[c].underline)
571 printf(";4");
572 if (colors[c].num[0] != -1)
573 printf(";3%d", colors[c].num[0]);
574 if (colors[c].num[1] != -1)
575 printf(";4%d", colors[c].num[1]);
576 printf("m");
577 }
578
579 static void
printcolor(Colors c)580 printcolor(Colors c)
581 {
582
583 if (explicitansi)
584 printcolor_ansi(c);
585 else
586 printcolor_termcap(c);
587 }
588
589 static void
endcolor_termcap(int sig)590 endcolor_termcap(int sig)
591 {
592
593 tputs(ansi_coloff, 1, sig ? writech : putch);
594 tputs(attrs_off, 1, sig ? writech : putch);
595 }
596
597 static void
endcolor_ansi(void)598 endcolor_ansi(void)
599 {
600
601 printf("\33[m");
602 }
603
604 static void
endcolor(int sig)605 endcolor(int sig)
606 {
607
608 if (explicitansi)
609 endcolor_ansi();
610 else
611 endcolor_termcap(sig);
612 }
613
614 static int
colortype(mode_t mode)615 colortype(mode_t mode)
616 {
617 switch (mode & S_IFMT) {
618 case S_IFDIR:
619 if (mode & S_IWOTH)
620 if (mode & S_ISTXT)
621 printcolor(C_WSDIR);
622 else
623 printcolor(C_WDIR);
624 else
625 printcolor(C_DIR);
626 return (1);
627 case S_IFLNK:
628 printcolor(C_LNK);
629 return (1);
630 case S_IFSOCK:
631 printcolor(C_SOCK);
632 return (1);
633 case S_IFIFO:
634 printcolor(C_FIFO);
635 return (1);
636 case S_IFBLK:
637 printcolor(C_BLK);
638 return (1);
639 case S_IFCHR:
640 printcolor(C_CHR);
641 return (1);
642 default:;
643 }
644 if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) {
645 if (mode & S_ISUID)
646 printcolor(C_SUID);
647 else if (mode & S_ISGID)
648 printcolor(C_SGID);
649 else
650 printcolor(C_EXEC);
651 return (1);
652 }
653 return (0);
654 }
655
656 void
parsecolors(const char * cs)657 parsecolors(const char *cs)
658 {
659 int i;
660 int j;
661 size_t len;
662 char c[2];
663 short legacy_warn = 0;
664
665 if (cs == NULL)
666 cs = ""; /* LSCOLORS not set */
667 len = strlen(cs);
668 for (i = 0; i < (int)C_NUMCOLORS; i++) {
669 colors[i].bold = false;
670 colors[i].underline = false;
671
672 if (len <= 2 * (size_t)i) {
673 c[0] = defcolors[2 * i];
674 c[1] = defcolors[2 * i + 1];
675 } else {
676 c[0] = cs[2 * i];
677 c[1] = cs[2 * i + 1];
678 }
679 for (j = 0; j < 2; j++) {
680 /* Legacy colours used 0-7 */
681 if (c[j] >= '0' && c[j] <= '7') {
682 colors[i].num[j] = c[j] - '0';
683 if (!legacy_warn) {
684 warnx("LSCOLORS should use "
685 "characters a-h instead of 0-9 ("
686 "see the manual page)");
687 }
688 legacy_warn = 1;
689 } else if (c[j] >= 'a' && c[j] <= 'h')
690 colors[i].num[j] = c[j] - 'a';
691 else if (c[j] >= 'A' && c[j] <= 'H') {
692 colors[i].num[j] = c[j] - 'A';
693 if (j == 1)
694 colors[i].underline = true;
695 else
696 colors[i].bold = true;
697 } else if (tolower((unsigned char)c[j]) == 'x') {
698 if (j == 1 && c[j] == 'X')
699 colors[i].underline = true;
700 colors[i].num[j] = -1;
701 } else {
702 warnx("invalid character '%c' in LSCOLORS"
703 " env var", c[j]);
704 colors[i].num[j] = -1;
705 }
706 }
707 }
708 }
709
710 void
colorquit(int sig)711 colorquit(int sig)
712 {
713 endcolor(sig);
714
715 (void)signal(sig, SIG_DFL);
716 (void)kill(getpid(), sig);
717 }
718
719 #endif /* COLORLS */
720
721 static void
printlink(const FTSENT * p)722 printlink(const FTSENT *p)
723 {
724 int lnklen;
725 char name[MAXPATHLEN + 1];
726 char path[MAXPATHLEN + 1];
727
728 if (p->fts_level == FTS_ROOTLEVEL)
729 (void)snprintf(name, sizeof(name), "%s", p->fts_name);
730 else
731 (void)snprintf(name, sizeof(name),
732 "%s/%s", p->fts_parent->fts_accpath, p->fts_name);
733 if ((lnklen = readlink(name, path, sizeof(path) - 1)) == -1) {
734 (void)fprintf(stderr, "\nls: %s: %s\n", name, strerror(errno));
735 return;
736 }
737 path[lnklen] = '\0';
738 (void)printf(" -> ");
739 (void)printname(path);
740 }
741
742 static void
printsize(size_t width,off_t bytes)743 printsize(size_t width, off_t bytes)
744 {
745
746 if (f_humanval) {
747 /*
748 * Reserve one space before the size and allocate room for
749 * the trailing '\0'.
750 */
751 char buf[HUMANVALSTR_LEN - 1 + 1];
752
753 humanize_number(buf, sizeof(buf), (int64_t)bytes, "",
754 HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL);
755 (void)printf("%*s ", (u_int)width, buf);
756 } else if (f_thousands) { /* with commas */
757 /* This format assignment needed to work round gcc bug. */
758 const char *format = "%*j'd ";
759 (void)printf(format, (u_int)width, bytes);
760 } else
761 (void)printf("%*jd ", (u_int)width, bytes);
762 }
763
764 /*
765 * Add a + after the standard rwxrwxrwx mode if the file has an
766 * ACL. strmode() reserves space at the end of the string.
767 */
768 static void
aclmode(char * buf,const FTSENT * p)769 aclmode(char *buf, const FTSENT *p)
770 {
771 char name[MAXPATHLEN + 1];
772 int ret, trivial;
773 static dev_t previous_dev = NODEV;
774 static int supports_acls = -1;
775 static int type = ACL_TYPE_ACCESS;
776 acl_t facl;
777
778 /*
779 * XXX: ACLs are not supported on whiteouts and device files
780 * residing on UFS.
781 */
782 if (S_ISCHR(p->fts_statp->st_mode) || S_ISBLK(p->fts_statp->st_mode) ||
783 S_ISWHT(p->fts_statp->st_mode))
784 return;
785
786 if (previous_dev == p->fts_statp->st_dev && supports_acls == 0)
787 return;
788
789 if (p->fts_level == FTS_ROOTLEVEL)
790 snprintf(name, sizeof(name), "%s", p->fts_name);
791 else
792 snprintf(name, sizeof(name), "%s/%s",
793 p->fts_parent->fts_accpath, p->fts_name);
794
795 if (previous_dev != p->fts_statp->st_dev) {
796 previous_dev = p->fts_statp->st_dev;
797 supports_acls = 0;
798
799 ret = lpathconf(name, _PC_ACL_NFS4);
800 if (ret > 0) {
801 type = ACL_TYPE_NFS4;
802 supports_acls = 1;
803 } else if (ret < 0 && errno != EINVAL) {
804 warn("%s", name);
805 return;
806 }
807 if (supports_acls == 0) {
808 ret = lpathconf(name, _PC_ACL_EXTENDED);
809 if (ret > 0) {
810 type = ACL_TYPE_ACCESS;
811 supports_acls = 1;
812 } else if (ret < 0 && errno != EINVAL) {
813 warn("%s", name);
814 return;
815 }
816 }
817 }
818 if (supports_acls == 0)
819 return;
820 facl = acl_get_link_np(name, type);
821 if (facl == NULL) {
822 warn("%s", name);
823 return;
824 }
825 if (acl_is_trivial_np(facl, &trivial)) {
826 acl_free(facl);
827 warn("%s", name);
828 return;
829 }
830 if (!trivial)
831 buf[10] = '+';
832 acl_free(facl);
833 }
834