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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 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37 #include <sys/cdefs.h>
38 #ifndef lint
39 __used static const char copyright[] =
40 "@(#) Copyright (c) 1989, 1993, 1994\n\
41 The Regents of the University of California. All rights reserved.\n";
42 #endif /* not lint */
43
44 #if 0
45 #ifndef lint
46 static char sccsid[] = "@(#)ls.c 8.5 (Berkeley) 4/2/94";
47 #endif /* not lint */
48 #endif
49 #include <sys/cdefs.h>
50 __RCSID("$FreeBSD: src/bin/ls/ls.c,v 1.66 2002/09/21 01:28:36 wollman Exp $");
51
52 #include <sys/types.h>
53 #include <sys/stat.h>
54 #include <sys/ioctl.h>
55
56 #include <dirent.h>
57 #include <err.h>
58 #include <errno.h>
59 #include <fts.h>
60 #include <grp.h>
61 #include <limits.h>
62 #include <locale.h>
63 #include <pwd.h>
64 #include <stdio.h>
65 #include <stdlib.h>
66 #include <string.h>
67 #include <unistd.h>
68 #ifdef COLORLS
69 #include <termcap.h>
70 #include <signal.h>
71 #endif
72 #ifdef __APPLE__
73 #include <sys/acl.h>
74 #include <sys/xattr.h>
75 #include <sys/param.h>
76 #include <get_compat.h>
77 #else
78 #define COMPAT_MODE(a,b) (1)
79 #endif /* __APPLE__ */
80 #include "ls.h"
81 #include "extern.h"
82
83 /*
84 * Upward approximation of the maximum number of characters needed to
85 * represent a value of integral type t as a string, excluding the
86 * NUL terminator, with provision for a sign.
87 */
88 #define STRBUF_SIZEOF(t) (1 + CHAR_BIT * sizeof(t) / 3 + 1)
89
90 static void display(FTSENT *, FTSENT *);
91 static u_quad_t makenines(u_quad_t);
92 static int mastercmp(const FTSENT **, const FTSENT **);
93 static void traverse(int, char **, int);
94
95 static void (*printfcn)(DISPLAY *);
96 static int (*sortfcn)(const FTSENT *, const FTSENT *);
97
98 long blocksize; /* block size units */
99 int termwidth = 80; /* default terminal width */
100
101 /* flags */
102 int f_accesstime; /* use time of last access */
103 int f_birthtime; /* use time of file birth */
104 int f_flags; /* show flags associated with a file */
105 int f_humanval; /* show human-readable file sizes */
106 int f_inode; /* print inode */
107 static int f_kblocks; /* print size in kilobytes */
108 static int f_listdir; /* list actual directory, not contents */
109 static int f_listdot; /* list files beginning with . */
110 int f_longform; /* long listing format */
111 int f_nonprint; /* show unprintables as ? */
112 static int f_nosort; /* don't sort output */
113 int f_notabs; /* don't use tab-separated multi-col output */
114 int f_numericonly; /* don't convert uid/gid to name */
115 int f_octal; /* show unprintables as \xxx */
116 int f_octal_escape; /* like f_octal but use C escapes if possible */
117 static int f_recursive; /* ls subdirectories also */
118 static int f_reversesort; /* reverse whatever sort is used */
119 int f_sectime; /* print the real time for all files */
120 static int f_singlecol; /* use single column output */
121 int f_size; /* list size in short listing */
122 int f_slash; /* similar to f_type, but only for dirs */
123 int f_sortacross; /* sort across rows, not down columns */
124 int f_statustime; /* use time of last mode change */
125 int f_stream; /* stream the output, separate with commas */
126 static int f_timesort; /* sort by time vice name */
127 static int f_sizesort; /* sort by size */
128 int f_type; /* add type character for non-regular files */
129 static int f_whiteout; /* show whiteout entries */
130 int f_acl; /* show ACLs in long listing */
131 int f_xattr; /* show extended attributes in long listing */
132 int f_group; /* show group */
133 int f_owner; /* show owner */
134 #ifdef COLORLS
135 int f_color; /* add type in color for non-regular files */
136
137 char *ansi_bgcol; /* ANSI sequence to set background colour */
138 char *ansi_fgcol; /* ANSI sequence to set foreground colour */
139 char *ansi_coloff; /* ANSI sequence to reset colours */
140 char *attrs_off; /* ANSI sequence to turn off attributes */
141 char *enter_bold; /* ANSI sequence to set color to bold mode */
142 #endif
143
144 static int rval;
145
146 int
147 main(int argc, char *argv[])
148 {
149 static char dot[] = ".", *dotav[] = {dot, NULL};
150 struct winsize win;
151 int ch, fts_options, notused;
152 char *p;
153 #ifdef COLORLS
154 char termcapbuf[1024]; /* termcap definition buffer */
155 char tcapbuf[512]; /* capability buffer */
156 char *bp = tcapbuf;
157 #endif
158
159 if (argc < 1)
160 usage();
161 (void)setlocale(LC_ALL, "");
162
163 /* Terminal defaults to -Cq, non-terminal defaults to -1. */
164 if (isatty(STDOUT_FILENO)) {
165 termwidth = 80;
166 if ((p = getenv("COLUMNS")) != NULL && *p != '\0')
167 termwidth = atoi(p);
168 else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) != -1 &&
169 win.ws_col > 0)
170 termwidth = win.ws_col;
171 f_nonprint = 1;
172 } else {
173 f_singlecol = 1;
174 /* retrieve environment variable, in case of explicit -C */
175 p = getenv("COLUMNS");
176 if (p)
177 termwidth = atoi(p);
178 }
179
180 /* Root is -A automatically. */
181 if (!getuid())
182 f_listdot = 1;
183
184 fts_options = FTS_PHYSICAL;
185 while ((ch = getopt(argc, argv, "1@ABCFGHLOPRSTUWabcdefghiklmnopqrstuvwx"))
186 != -1) {
187 switch (ch) {
188 /*
189 * The -1, -C, -x and -l options all override each other so
190 * shell aliasing works right.
191 */
192 case '1':
193 f_singlecol = 1;
194 f_longform = 0;
195 f_stream = 0;
196 break;
197 case 'B':
198 f_nonprint = 0;
199 f_octal = 1;
200 f_octal_escape = 0;
201 break;
202 case 'C':
203 f_sortacross = f_longform = f_singlecol = 0;
204 break;
205 case 'l':
206 f_longform = 1;
207 f_singlecol = 0;
208 f_stream = 0;
209 break;
210 case 'x':
211 f_sortacross = 1;
212 f_longform = 0;
213 f_singlecol = 0;
214 break;
215 /* The -c and -u options override each other. */
216 case 'c':
217 f_statustime = 1;
218 f_accesstime = f_birthtime = 0;
219 break;
220 case 'u':
221 f_accesstime = 1;
222 f_statustime = f_birthtime = 0;
223 break;
224 case 'U':
225 f_birthtime = 1;
226 f_statustime = f_accesstime = 0;
227 break;
228 case 'F':
229 f_type = 1;
230 f_slash = 0;
231 break;
232 case 'H':
233 if (COMPAT_MODE("bin/ls", "Unix2003")) {
234 fts_options &= ~FTS_LOGICAL;
235 fts_options |= FTS_PHYSICAL;
236 fts_options |= FTS_COMFOLLOWDIR;
237 } else
238 fts_options |= FTS_COMFOLLOW;
239 break;
240 case 'G':
241 setenv("CLICOLOR", "", 1);
242 break;
243 case 'L':
244 fts_options &= ~FTS_PHYSICAL;
245 fts_options |= FTS_LOGICAL;
246 if (COMPAT_MODE("bin/ls", "Unix2003")) {
247 fts_options &= ~(FTS_COMFOLLOW|FTS_COMFOLLOWDIR);
248 }
249 break;
250 case 'P':
251 fts_options &= ~(FTS_COMFOLLOW|FTS_COMFOLLOWDIR);
252 fts_options &= ~FTS_LOGICAL;
253 fts_options |= FTS_PHYSICAL;
254 break;
255 case 'R':
256 f_recursive = 1;
257 break;
258 case 'a':
259 fts_options |= FTS_SEEDOT;
260 /* FALLTHROUGH */
261 case 'A':
262 f_listdot = 1;
263 break;
264 /* The -d option turns off the -R option. */
265 case 'd':
266 f_listdir = 1;
267 f_recursive = 0;
268 break;
269 case 'f':
270 f_nosort = 1;
271 if (COMPAT_MODE("bin/ls", "Unix2003")) {
272 fts_options |= FTS_SEEDOT;
273 f_listdot = 1;
274 }
275 break;
276 case 'g': /* Compatibility with Unix03 */
277 if (COMPAT_MODE("bin/ls", "Unix2003")) {
278 f_group = 1;
279 f_longform = 1;
280 f_singlecol = 0;
281 f_stream = 0;
282 }
283 break;
284 case 'h':
285 f_humanval = 1;
286 break;
287 case 'i':
288 f_inode = 1;
289 break;
290 case 'k':
291 f_kblocks = 1;
292 break;
293 case 'm':
294 f_stream = 1;
295 f_singlecol = 0;
296 f_longform = 0;
297 break;
298 case 'n':
299 f_numericonly = 1;
300 if (COMPAT_MODE("bin/ls", "Unix2003")) {
301 f_longform = 1;
302 f_singlecol = 0;
303 f_stream = 0;
304 }
305 break;
306 case 'o':
307 if (COMPAT_MODE("bin/ls", "Unix2003")) {
308 f_owner = 1;
309 f_longform = 1;
310 f_singlecol = 0;
311 f_stream = 0;
312 } else {
313 f_flags = 1;
314 }
315 break;
316 case 'p':
317 f_slash = 1;
318 f_type = 1;
319 break;
320 case 'q':
321 f_nonprint = 1;
322 f_octal = 0;
323 f_octal_escape = 0;
324 break;
325 case 'r':
326 f_reversesort = 1;
327 break;
328 case 'S':
329 /* Darwin 1.4.1 compatibility */
330 f_sizesort = 1;
331 break;
332 case 's':
333 f_size = 1;
334 break;
335 case 'T':
336 f_sectime = 1;
337 break;
338 case 't':
339 f_timesort = 1;
340 break;
341 case 'W':
342 f_whiteout = 1;
343 break;
344 case 'v':
345 /* Darwin 1.4.1 compatibility */
346 f_nonprint = 0;
347 break;
348 case 'b':
349 f_nonprint = 0;
350 f_octal = 0;
351 f_octal_escape = 1;
352 break;
353 case 'w':
354 f_nonprint = 0;
355 f_octal = 0;
356 f_octal_escape = 0;
357 break;
358 case 'e':
359 f_acl = 1;
360 break;
361 case '@':
362 f_xattr = 1;
363 break;
364 case 'O':
365 f_flags = 1;
366 break;
367 default:
368 case '?':
369 usage();
370 }
371 }
372 argc -= optind;
373 argv += optind;
374
375 /* Enabling of colours is conditional on the environment. */
376 if (getenv("CLICOLOR") &&
377 (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE")))
378 #ifdef COLORLS
379 if (tgetent(termcapbuf, getenv("TERM")) == 1) {
380 ansi_fgcol = tgetstr("AF", &bp);
381 ansi_bgcol = tgetstr("AB", &bp);
382 attrs_off = tgetstr("me", &bp);
383 enter_bold = tgetstr("md", &bp);
384
385 /* To switch colours off use 'op' if
386 * available, otherwise use 'oc', or
387 * don't do colours at all. */
388 ansi_coloff = tgetstr("op", &bp);
389 if (!ansi_coloff)
390 ansi_coloff = tgetstr("oc", &bp);
391 if (ansi_fgcol && ansi_bgcol && ansi_coloff)
392 f_color = 1;
393 }
394 #else
395 (void)fprintf(stderr, "Color support not compiled in.\n");
396 #endif /*COLORLS*/
397
398 #ifdef COLORLS
399 if (f_color) {
400 /*
401 * We can't put tabs and color sequences together:
402 * column number will be incremented incorrectly
403 * for "stty oxtabs" mode.
404 */
405 f_notabs = 1;
406 (void)signal(SIGINT, colorquit);
407 (void)signal(SIGQUIT, colorquit);
408 parsecolors(getenv("LSCOLORS"));
409 }
410 #endif
411
412 /*
413 * If not -F, -i, -l, -s or -t options, don't require stat
414 * information, unless in color mode in which case we do
415 * need this to determine which colors to display.
416 */
417 if (!f_inode && !f_longform && !f_size && !f_timesort && !f_type && !f_sizesort
418 #ifdef COLORLS
419 && !f_color
420 #endif
421 )
422 fts_options |= FTS_NOSTAT;
423
424 /*
425 * If not -F, -d or -l options, follow any symbolic links listed on
426 * the command line.
427 */
428 if (!f_longform && !f_listdir && !f_type && !f_inode)
429 fts_options |= FTS_COMFOLLOW;
430
431 /*
432 * If -W, show whiteout entries
433 */
434 #ifdef FTS_WHITEOUT
435 if (f_whiteout)
436 fts_options |= FTS_WHITEOUT;
437 #endif
438
439 /* If -l or -s, figure out block size. */
440 if (f_longform || f_size) {
441 if (f_kblocks)
442 blocksize = 2;
443 else {
444 (void)getbsize(&notused, &blocksize);
445 blocksize /= 512;
446 }
447 }
448 /* Select a sort function. */
449 if (f_reversesort) {
450 if (f_sizesort)
451 sortfcn = revsizecmp;
452 else if (!f_timesort)
453 sortfcn = revnamecmp;
454 else if (f_accesstime)
455 sortfcn = revacccmp;
456 else if (f_statustime)
457 sortfcn = revstatcmp;
458 else if (f_birthtime)
459 sortfcn = revbirthcmp;
460 else /* Use modification time. */
461 sortfcn = revmodcmp;
462 } else {
463 if (f_sizesort)
464 sortfcn = sizecmp;
465 else if (!f_timesort)
466 sortfcn = namecmp;
467 else if (f_accesstime)
468 sortfcn = acccmp;
469 else if (f_statustime)
470 sortfcn = statcmp;
471 else if (f_birthtime)
472 sortfcn = birthcmp;
473 else /* Use modification time. */
474 sortfcn = modcmp;
475 }
476
477 /* Select a print function. */
478 if (f_singlecol)
479 printfcn = printscol;
480 else if (f_longform)
481 printfcn = printlong;
482 else if (f_stream)
483 printfcn = printstream;
484 else
485 printfcn = printcol;
486
487 if (argc)
488 traverse(argc, argv, fts_options);
489 else
490 traverse(1, dotav, fts_options);
491 exit(rval);
492 }
493
494 static int output; /* If anything output. */
495
496 /*
497 * Traverse() walks the logical directory structure specified by the argv list
498 * in the order specified by the mastercmp() comparison function. During the
499 * traversal it passes linked lists of structures to display() which represent
500 * a superset (may be exact set) of the files to be displayed.
501 */
502 static void
503 traverse(int argc, char *argv[], int options)
504 {
505 FTS *ftsp;
506 FTSENT *p, *chp;
507 int ch_options, error;
508
509 if ((ftsp =
510 fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL)
511 err(1, "fts_open");
512
513 display(NULL, fts_children(ftsp, 0));
514 if (f_listdir) {
515 fts_close(ftsp);
516 return;
517 }
518
519 /*
520 * If not recursing down this tree and don't need stat info, just get
521 * the names.
522 */
523 ch_options = !f_recursive && options & FTS_NOSTAT ? FTS_NAMEONLY : 0;
524
525 while ((p = fts_read(ftsp)) != NULL)
526 switch (p->fts_info) {
527 case FTS_DC:
528 warnx("%s: directory causes a cycle", p->fts_name);
529 if (COMPAT_MODE("bin/ls", "Unix2003")) {
530 rval = 1;
531 }
532 break;
533 case FTS_DNR:
534 case FTS_ERR:
535 warnx("%s: %s", p->fts_name, strerror(p->fts_errno));
536 rval = 1;
537 break;
538 case FTS_D:
539 if (p->fts_level != FTS_ROOTLEVEL &&
540 p->fts_name[0] == '.' && !f_listdot) {
541 fts_set(ftsp, p, FTS_SKIP);
542 break;
543 }
544
545 /*
546 * If already output something, put out a newline as
547 * a separator. If multiple arguments, precede each
548 * directory with its name.
549 */
550 if (output)
551 (void)printf("\n%s:\n", p->fts_path);
552 else if (argc > 1) {
553 (void)printf("%s:\n", p->fts_path);
554 output = 1;
555 }
556 chp = fts_children(ftsp, ch_options);
557 if (COMPAT_MODE("bin/ls", "Unix2003") && ((options & FTS_LOGICAL)!=0)) {
558 FTSENT *curr;
559 for (curr = chp; curr; curr = curr->fts_link) {
560 if (curr->fts_info == FTS_SLNONE)
561 curr->fts_number = NO_PRINT;
562 }
563 }
564 display(p, chp);
565
566 if (!f_recursive && chp != NULL)
567 (void)fts_set(ftsp, p, FTS_SKIP);
568 break;
569 case FTS_SLNONE: /* Same as default unless Unix conformance */
570 if (COMPAT_MODE("bin/ls", "Unix2003")) {
571 if ((options & FTS_LOGICAL)!=0) { /* -L was specified */
572 warnx("%s: %s", p->fts_name, strerror(p->fts_errno ?: ENOENT));
573 rval = 1;
574 }
575 }
576 break;
577 default:
578 break;
579 }
580 error = errno;
581 fts_close(ftsp);
582 errno = error;
583
584 if (errno)
585 err(1, "fts_read");
586 }
587
588 /*
589 * Display() takes a linked list of FTSENT structures and passes the list
590 * along with any other necessary information to the print function. P
591 * points to the parent directory of the display list.
592 */
593 static void
594 display(FTSENT *p, FTSENT *list)
595 {
596 struct stat *sp;
597 DISPLAY d;
598 FTSENT *cur;
599 NAMES *np;
600 off_t maxsize;
601 u_int64_t btotal, maxblock;
602 u_long lattrlen, maxlen, maxnlink, maxlattr;
603 ino_t maxinode;
604 int bcfile, maxflags;
605 gid_t maxgroup;
606 uid_t maxuser;
607 size_t flen, ulen, glen;
608 char *initmax;
609 int entries, needstats;
610 const char *user, *group;
611 char *flags, *lattr = NULL;
612 char buf[STRBUF_SIZEOF(u_quad_t) + 1];
613 char ngroup[STRBUF_SIZEOF(uid_t) + 1];
614 char nuser[STRBUF_SIZEOF(gid_t) + 1];
615 #ifdef __APPLE__
616 acl_entry_t dummy;
617 ssize_t xattr_size;
618 char *filename;
619 char path[MAXPATHLEN+1];
620 #endif // __APPLE__
621 /*
622 * If list is NULL there are two possibilities: that the parent
623 * directory p has no children, or that fts_children() returned an
624 * error. We ignore the error case since it will be replicated
625 * on the next call to fts_read() on the post-order visit to the
626 * directory p, and will be signaled in traverse().
627 */
628 if (list == NULL)
629 return;
630
631 needstats = f_inode || f_longform || f_size;
632 btotal = 0;
633 initmax = getenv("LS_COLWIDTHS");
634 /* Fields match -lios order. New ones should be added at the end. */
635 maxlattr = maxblock = maxinode = maxlen = maxnlink =
636 maxuser = maxgroup = maxflags = maxsize = 0;
637 if (initmax != NULL && *initmax != '\0') {
638 char *initmax2, *jinitmax;
639 int ninitmax;
640
641 /* Fill-in "::" as "0:0:0" for the sake of scanf. */
642 jinitmax = initmax2 = malloc(strlen(initmax) * 2 + 2);
643 if (jinitmax == NULL)
644 err(1, "malloc");
645 if (*initmax == ':')
646 strcpy(initmax2, "0:"), initmax2 += 2;
647 else
648 *initmax2++ = *initmax, *initmax2 = '\0';
649 for (initmax++; *initmax != '\0'; initmax++) {
650 if (initmax[-1] == ':' && initmax[0] == ':') {
651 *initmax2++ = '0';
652 *initmax2++ = initmax[0];
653 initmax2[1] = '\0';
654 } else {
655 *initmax2++ = initmax[0];
656 initmax2[1] = '\0';
657 }
658 }
659 if (initmax2[-1] == ':')
660 strcpy(initmax2, "0");
661
662 ninitmax = sscanf(jinitmax,
663 #if _DARWIN_FEATURE_64_BIT_INODE
664 " %llu : %qu : %lu : %i : %i : %i : %qu : %lu : %lu ",
665 #else
666 " %lu : %qu : %lu : %i : %i : %i : %qu : %lu : %lu ",
667 #endif
668 &maxinode, &maxblock, &maxnlink, &maxuser,
669 &maxgroup, &maxflags, &maxsize, &maxlen, &maxlattr);
670 f_notabs = 1;
671 switch (ninitmax) {
672 case 0:
673 maxinode = 0;
674 /* FALLTHROUGH */
675 case 1:
676 maxblock = 0;
677 /* FALLTHROUGH */
678 case 2:
679 maxnlink = 0;
680 /* FALLTHROUGH */
681 case 3:
682 maxuser = 0;
683 /* FALLTHROUGH */
684 case 4:
685 maxgroup = 0;
686 /* FALLTHROUGH */
687 case 5:
688 maxflags = 0;
689 /* FALLTHROUGH */
690 case 6:
691 maxsize = 0;
692 /* FALLTHROUGH */
693 case 7:
694 maxlen = 0;
695 /* FALLTHROUGH */
696 case 8:
697 maxlattr = 0;
698 /* FALLTHROUGH */
699 #ifdef COLORLS
700 if (!f_color)
701 #endif
702 f_notabs = 0;
703 /* FALLTHROUGH */
704 default:
705 break;
706 }
707 maxinode = makenines(maxinode);
708 maxblock = makenines(maxblock);
709 maxnlink = makenines(maxnlink);
710 maxsize = makenines(maxsize);
711 }
712 bcfile = 0;
713 flags = NULL;
714 for (cur = list, entries = 0; cur; cur = cur->fts_link) {
715 if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) {
716 warnx("%s: %s",
717 cur->fts_name, strerror(cur->fts_errno));
718 cur->fts_number = NO_PRINT;
719 rval = 1;
720 continue;
721 }
722 /*
723 * P is NULL if list is the argv list, to which different rules
724 * apply.
725 */
726 if (p == NULL) {
727 /* Directories will be displayed later. */
728 if (cur->fts_info == FTS_D && !f_listdir) {
729 cur->fts_number = NO_PRINT;
730 continue;
731 }
732 } else {
733 /* Only display dot file if -a/-A set. */
734 if (cur->fts_name[0] == '.' && !f_listdot) {
735 cur->fts_number = NO_PRINT;
736 continue;
737 }
738 }
739 if (cur->fts_namelen > maxlen)
740 maxlen = cur->fts_namelen;
741 if (f_octal || f_octal_escape) {
742 u_long t = len_octal(cur->fts_name, cur->fts_namelen);
743
744 if (t > maxlen)
745 maxlen = t;
746 }
747 if (needstats) {
748 sp = cur->fts_statp;
749 if (sp->st_blocks > maxblock)
750 maxblock = sp->st_blocks;
751 if (sp->st_ino > maxinode)
752 maxinode = sp->st_ino;
753 if (sp->st_nlink > maxnlink)
754 maxnlink = sp->st_nlink;
755 if (sp->st_size > maxsize)
756 maxsize = sp->st_size;
757
758 btotal += sp->st_blocks;
759 if (f_longform) {
760 if (f_numericonly) {
761 (void)snprintf(nuser, sizeof(nuser),
762 "%u", sp->st_uid);
763 (void)snprintf(ngroup, sizeof(ngroup),
764 "%u", sp->st_gid);
765 user = nuser;
766 group = ngroup;
767 } else {
768 user = user_from_uid(sp->st_uid, 0);
769 group = group_from_gid(sp->st_gid, 0);
770 }
771 if ((ulen = strlen(user)) > maxuser)
772 maxuser = ulen;
773 if ((glen = strlen(group)) > maxgroup)
774 maxgroup = glen;
775 if (f_flags) {
776 flags = fflagstostr(sp->st_flags);
777 if (flags != NULL && *flags == '\0') {
778 free(flags);
779 flags = strdup("-");
780 }
781 if (flags == NULL)
782 err(1, "fflagstostr");
783 flen = strlen(flags);
784 if (flen > (size_t)maxflags)
785 maxflags = flen;
786 } else
787 flen = 0;
788 lattr = NULL;
789 lattrlen = 0;
790
791 if ((np = calloc(1, sizeof(NAMES) + lattrlen +
792 ulen + glen + flen + 4)) == NULL)
793 err(1, "malloc");
794
795 np->user = &np->data[0];
796 (void)strcpy(np->user, user);
797 np->group = &np->data[ulen + 1];
798 (void)strcpy(np->group, group);
799 #ifdef __APPLE__
800 if (cur->fts_level == FTS_ROOTLEVEL) {
801 filename = cur->fts_name;
802 } else {
803 snprintf(path, sizeof(path), "%s/%s", cur->fts_parent->fts_accpath, cur->fts_name);
804 filename = path;
805 }
806 xattr_size = listxattr(filename, NULL, 0, XATTR_NOFOLLOW);
807 if (xattr_size < 0) {
808 xattr_size = 0;
809 }
810 if ((xattr_size > 0) && f_xattr) {
811 /* collect sizes */
812 np->xattr_names = malloc(xattr_size);
813 listxattr(filename, np->xattr_names, xattr_size, XATTR_NOFOLLOW);
814 for (char *name = np->xattr_names; name < np->xattr_names + xattr_size;
815 name += strlen(name)+1) {
816 np->xattr_sizes = reallocf(np->xattr_sizes, (np->xattr_count+1) * sizeof(np->xattr_sizes[0]));
817 np->xattr_sizes[np->xattr_count] = getxattr(filename, name, 0, 0, 0, XATTR_NOFOLLOW);
818 np->xattr_count++;
819 }
820 }
821 /* symlinks can not have ACLs */
822 np->acl = acl_get_link_np(filename, ACL_TYPE_EXTENDED);
823 if (np->acl) {
824 if (acl_get_entry(np->acl, ACL_FIRST_ENTRY, &dummy) == -1) {
825 acl_free(np->acl);
826 np->acl = NULL;
827 }
828 }
829 if (xattr_size > 0) {
830 np->mode_suffix = '@';
831 } else if (np->acl) {
832 np->mode_suffix = '+';
833 } else {
834 np->mode_suffix = ' ';
835 }
836 if (!f_acl) {
837 acl_free(np->acl);
838 np->acl = NULL;
839 }
840 #endif // __APPLE__
841 if (S_ISCHR(sp->st_mode) ||
842 S_ISBLK(sp->st_mode))
843 bcfile = 1;
844
845 if (f_flags) {
846 np->flags = &np->data[ulen + glen + 2];
847 (void)strcpy(np->flags, flags);
848 free(flags);
849 }
850 cur->fts_pointer = np;
851 }
852 }
853 ++entries;
854 }
855
856 if (!entries)
857 return;
858
859 d.list = list;
860 d.entries = entries;
861 d.maxlen = maxlen;
862 if (needstats) {
863 d.bcfile = bcfile;
864 d.btotal = btotal;
865 (void)snprintf(buf, sizeof(buf), "%qu", (u_int64_t)maxblock);
866 d.s_block = strlen(buf);
867 d.s_flags = maxflags;
868 d.s_lattr = maxlattr;
869 d.s_group = maxgroup;
870 #if _DARWIN_FEATURE_64_BIT_INODE
871 (void)snprintf(buf, sizeof(buf), "%llu", maxinode);
872 #else
873 (void)snprintf(buf, sizeof(buf), "%lu", maxinode);
874 #endif
875 d.s_inode = strlen(buf);
876 (void)snprintf(buf, sizeof(buf), "%lu", maxnlink);
877 d.s_nlink = strlen(buf);
878 (void)snprintf(buf, sizeof(buf), "%qu", (u_int64_t)maxsize);
879 d.s_size = strlen(buf);
880 d.s_user = maxuser;
881 }
882 printfcn(&d);
883 output = 1;
884
885 if (f_longform) {
886 for (cur = list; cur; cur = cur->fts_link) {
887 np = cur->fts_pointer;
888 if (np) {
889 if (np->acl) {
890 acl_free(np->acl);
891 }
892 free(np->xattr_names);
893 free(np->xattr_sizes);
894 free(np);
895 cur->fts_pointer = NULL;
896 }
897 }
898 }
899 }
900
901 /*
902 * Ordering for mastercmp:
903 * If ordering the argv (fts_level = FTS_ROOTLEVEL) return non-directories
904 * as larger than directories. Within either group, use the sort function.
905 * All other levels use the sort function. Error entries remain unsorted.
906 */
907 static int
908 mastercmp(const FTSENT **a, const FTSENT **b)
909 {
910 int a_info, b_info;
911
912 a_info = (*a)->fts_info;
913 if (a_info == FTS_ERR)
914 return (0);
915 b_info = (*b)->fts_info;
916 if (b_info == FTS_ERR)
917 return (0);
918
919 if (a_info == FTS_NS || b_info == FTS_NS)
920 return (namecmp(*a, *b));
921
922 if (a_info != b_info &&
923 (*a)->fts_level == FTS_ROOTLEVEL && !f_listdir) {
924 if (a_info == FTS_D)
925 return (1);
926 if (b_info == FTS_D)
927 return (-1);
928 }
929 return (sortfcn(*a, *b));
930 }
931
932 /*
933 * Makenines() returns (10**n)-1. This is useful for converting a width
934 * into a number that wide in decimal.
935 */
936 static u_quad_t
937 makenines(u_quad_t n)
938 {
939 u_long i;
940 u_quad_t reg;
941
942 reg = 1;
943 /* Use a loop instead of pow(), since all values of n are small. */
944 for (i = 0; i < n; i++)
945 reg *= 10;
946 reg--;
947
948 return reg;
949 }
mirror of file_cmds