summaryrefslogtreecommitdiffstats
path: root/bin/ls/ls.c
blob: 1338841a0083d778137091723d22ae57a5e36f1d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
/*
 * Copyright (c) 1989, 1993, 1994
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Michael Fischbein.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef lint
static const char copyright[] =
"@(#) Copyright (c) 1989, 1993, 1994\n\
	The Regents of the University of California.  All rights reserved.\n";
#endif /* not lint */

#ifndef lint
#if 0
static char sccsid[] = "@(#)ls.c	8.5 (Berkeley) 4/2/94";
#else
static const char rcsid[] =
  "$FreeBSD$";
#endif
#endif /* not lint */

#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>

#include <dirent.h>
#include <err.h>
#include <errno.h>
#include <fts.h>
#include <limits.h>
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#ifdef COLORLS
#include <termcap.h>
#include <signal.h>
#endif

#include "ls.h"
#include "extern.h"
#include "lomac.h"

/*
 * Upward approximation of the maximum number of characters needed to
 * represent a value of integral type t as a string, excluding the
 * NUL terminator, with provision for a sign.
 */
#define	STRBUF_SIZEOF(t)	(1 + CHAR_BIT * sizeof(t) / 3 + 1)

static void	 display __P((FTSENT *, FTSENT *));
static u_quad_t	 makenines __P((u_long));
static int	 mastercmp __P((const FTSENT **, const FTSENT **));
static void	 traverse __P((int, char **, int));

static void (*printfcn) __P((DISPLAY *));
static int (*sortfcn) __P((const FTSENT *, const FTSENT *));

long blocksize;			/* block size units */
int termwidth = 80;		/* default terminal width */

/* flags */
int f_accesstime;		/* use time of last access */
int f_column;			/* columnated format */
int f_flags;			/* show flags associated with a file */
int f_humanval;			/* show human-readable file sizes */
int f_inode;			/* print inode */
int f_kblocks;			/* print size in kilobytes */
int f_listdir;			/* list actual directory, not contents */
int f_listdot;			/* list files beginning with . */
int f_longform;			/* long listing format */
int f_nonprint;			/* show unprintables as ? */
int f_nosort;			/* don't sort output */
int f_notabs;			/* don't use tab-separated multi-col output */
int f_numericonly;		/* don't convert uid/gid to name */
int f_octal;			/* show unprintables as \xxx */
int f_octal_escape;		/* like f_octal but use C escapes if possible */
int f_recursive;		/* ls subdirectories also */
int f_reversesort;		/* reverse whatever sort is used */
int f_sectime;			/* print the real time for all files */
int f_singlecol;		/* use single column output */
int f_size;			/* list size in short listing */
int f_statustime;		/* use time of last mode change */
int f_timesort;			/* sort by time vice name */
int f_type;			/* add type character for non-regular files */
int f_whiteout;			/* show whiteout entries */
int f_lomac;			/* show LOMAC attributes */
#ifdef COLORLS
int f_color;			/* add type in color for non-regular files */

char *ansi_bgcol;		/* ANSI sequence to set background colour */
char *ansi_fgcol;		/* ANSI sequence to set foreground colour */
char *ansi_coloff;		/* ANSI sequence to reset colours */
char *attrs_off;		/* ANSI sequence to turn off attributes */
char *enter_bold;		/* ANSI sequence to set color to bold mode */
#endif

int rval;

int
main(argc, argv)
	int argc;
	char *argv[];
{
	static char dot[] = ".", *dotav[] = {dot, NULL};
	struct winsize win;
	int ch, fts_options, notused;
	char *p;
#ifdef COLORLS
	char termcapbuf[1024];	/* termcap definition buffer */
	char tcapbuf[512];	/* capability buffer */
	char *bp = tcapbuf;
#endif

	(void)setlocale(LC_ALL, "");

	/* Terminal defaults to -Cq, non-terminal defaults to -1. */
	if (isatty(STDOUT_FILENO)) {
		if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) == -1 ||
		    !win.ws_col) {
			if ((p = getenv("COLUMNS")) != NULL)
				termwidth = atoi(p);
		} else
			termwidth = win.ws_col;
		f_column = f_nonprint = 1;
	} else {
		f_singlecol = 1;
		/* retrieve environment variable, in case of explicit -C */
		if ((p = getenv("COLUMNS")))
			termwidth = atoi(p);
	}

	/* Root is -A automatically. */
	if (!getuid())
		f_listdot = 1;

	fts_options = FTS_PHYSICAL;
 	while ((ch = getopt(argc, argv, "1ABCFGHLPRTWZabcdfghiklnoqrstuw")) != -1) {
		switch (ch) {
		/*
		 * The -1, -C and -l options all override each other so shell
		 * aliasing works right.
		 */
		case '1':
			f_singlecol = 1;
			f_column = f_longform = 0;
			break;
		case 'B':
			f_nonprint = 0;
			f_octal = 1;
			f_octal_escape = 0;
			break;
		case 'C':
			f_column = 1;
			f_longform = f_singlecol = 0;
			break;
		case 'l':
			f_longform = 1;
			f_column = f_singlecol = 0;
			break;
		/* The -c and -u options override each other. */
		case 'c':
			f_statustime = 1;
			f_accesstime = 0;
			break;
		case 'u':
			f_accesstime = 1;
			f_statustime = 0;
			break;
		case 'F':
			f_type = 1;
			break;
		case 'H':
			fts_options |= FTS_COMFOLLOW;
			break;
		case 'G':
			setenv("CLICOLOR", "", 1);
			break;
		case 'L':
			fts_options &= ~FTS_PHYSICAL;
			fts_options |= FTS_LOGICAL;
			break;
		case 'P':
			fts_options &= ~FTS_COMFOLLOW;
			fts_options &= ~FTS_LOGICAL;
			fts_options |= FTS_PHYSICAL;
			break;
		case 'R':
			f_recursive = 1;
			break;
		case 'a':
			fts_options |= FTS_SEEDOT;
			/* FALLTHROUGH */
		case 'A':
			f_listdot = 1;
			break;
		/* The -d option turns off the -R option. */
		case 'd':
			f_listdir = 1;
			f_recursive = 0;
			break;
		case 'f':
			f_nosort = 1;
			break;
		case 'g':	/* Compatibility with 4.3BSD. */
			break;
		case 'h':
			f_humanval = 1;
			break;
		case 'i':
			f_inode = 1;
			break;
		case 'k':
			f_kblocks = 1;
			break;
		case 'n':
			f_numericonly = 1;
			break;
		case 'o':
			f_flags = 1;
			break;
		case 'q':
			f_nonprint = 1;
			f_octal = 0;
			f_octal_escape = 0;
			break;
		case 'r':
			f_reversesort = 1;
			break;
		case 's':
			f_size = 1;
			break;
		case 'T':
			f_sectime = 1;
			break;
		case 't':
			f_timesort = 1;
			break;
		case 'W':
			f_whiteout = 1;
			break;
		case 'b':
			f_nonprint = 0;
			f_octal = 0;
			f_octal_escape = 1;
			break;
		case 'w':
			f_nonprint = 0;
			f_octal = 0;
			f_octal_escape = 0;
			break;
		case 'Z':
			f_lomac = 1;
			break;
		default:
		case '?':
			usage();
		}
	}
	argc -= optind;
	argv += optind;

	/* Enabling of colours is conditional on the environment. */
	if (getenv("CLICOLOR") &&
	    (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE")))
#ifdef COLORLS
		if (tgetent(termcapbuf, getenv("TERM")) == 1) {
			ansi_fgcol = tgetstr("AF", &bp);
			ansi_bgcol = tgetstr("AB", &bp);
			attrs_off = tgetstr("me", &bp);
			enter_bold = tgetstr("md", &bp);

			/* To switch colours off use 'op' if
			 * available, otherwise use 'oc', or
			 * don't do colours at all. */
			ansi_coloff = tgetstr("op", &bp);
			if (!ansi_coloff)
				ansi_coloff = tgetstr("oc", &bp);
			if (ansi_fgcol && ansi_bgcol && ansi_coloff)
				f_color = 1;
		}
#else
		(void)fprintf(stderr, "Color support not compiled in.\n");
#endif /*COLORLS*/

#ifdef COLORLS
	if (f_color) {
		/*
		 * We can't put tabs and color sequences together:
		 * column number will be incremented incorrectly
		 * for "stty oxtabs" mode.
		 */
		f_notabs = 1;
		(void)signal(SIGINT, colorquit);
		(void)signal(SIGQUIT, colorquit);
		parsecolors(getenv("LSCOLORS"));
	}
#endif

	/*
	 * If not -F, -i, -l, -s or -t options, don't require stat
	 * information, unless in color mode in which case we do
	 * need this to determine which colors to display.
	 */
	if (!f_inode && !f_longform && !f_size && !f_timesort && !f_type
#ifdef COLORLS
	    && !f_color
#endif
	    )
		fts_options |= FTS_NOSTAT;

	/*
	 * If not -F, -d or -l options, follow any symbolic links listed on
	 * the command line.
	 */
	if (!f_longform && !f_listdir && !f_type)
		fts_options |= FTS_COMFOLLOW;

	/*
	 * If -W, show whiteout entries
	 */
#ifdef FTS_WHITEOUT
	if (f_whiteout)
		fts_options |= FTS_WHITEOUT;
#endif

	/* If -l or -s, figure out block size. */
	if (f_longform || f_size) {
		if (f_kblocks)
			blocksize = 2;
		else {
			(void)getbsize(&notused, &blocksize);
			blocksize /= 512;
		}
	}
	/* Select a sort function. */
	if (f_reversesort) {
		if (!f_timesort)
			sortfcn = revnamecmp;
		else if (f_accesstime)
			sortfcn = revacccmp;
		else if (f_statustime)
			sortfcn = revstatcmp;
		else		/* Use modification time. */
			sortfcn = revmodcmp;
	} else {
		if (!f_timesort)
			sortfcn = namecmp;
		else if (f_accesstime)
			sortfcn = acccmp;
		else if (f_statustime)
			sortfcn = statcmp;
		else		/* Use modification time. */
			sortfcn = modcmp;
	}

	/* Select a print function. */
	if (f_singlecol)
		printfcn = printscol;
	else if (f_longform)
		printfcn = printlong;
	else
		printfcn = printcol;

	if (argc)
		traverse(argc, argv, fts_options);
	else
		traverse(1, dotav, fts_options);
	exit(rval);
}

static int output;		/* If anything output. */

/*
 * Traverse() walks the logical directory structure specified by the argv list
 * in the order specified by the mastercmp() comparison function.  During the
 * traversal it passes linked lists of structures to display() which represent
 * a superset (may be exact set) of the files to be displayed.
 */
static void
traverse(argc, argv, options)
	int argc, options;
	char *argv[];
{
	FTS *ftsp;
	FTSENT *p, *chp;
	int ch_options;

	if ((ftsp =
	    fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL)
		err(1, NULL);

	display(NULL, fts_children(ftsp, 0));
	if (f_listdir)
		return;

	/*
	 * If not recursing down this tree and don't need stat info, just get
	 * the names.
	 */
	ch_options = !f_recursive && options & FTS_NOSTAT ? FTS_NAMEONLY : 0;

	while ((p = fts_read(ftsp)) != NULL)
		switch (p->fts_info) {
		case FTS_DC:
			warnx("%s: directory causes a cycle", p->fts_name);
			break;
		case FTS_DNR:
		case FTS_ERR:
			warnx("%s: %s", p->fts_name, strerror(p->fts_errno));
			rval = 1;
			break;
		case FTS_D:
			if (p->fts_level != FTS_ROOTLEVEL &&
			    p->fts_name[0] == '.' && !f_listdot)
				break;

			/*
			 * If already output something, put out a newline as
			 * a separator.  If multiple arguments, precede each
			 * directory with its name.
			 */
			if (output)
				(void)printf("\n%s:\n", p->fts_path);
			else if (argc > 1) {
				(void)printf("%s:\n", p->fts_path);
				output = 1;
			}
			chp = fts_children(ftsp, ch_options);
			display(p, chp);

			if (!f_recursive && chp != NULL)
				(void)fts_set(ftsp, p, FTS_SKIP);
			break;
		}
	if (errno)
		err(1, "fts_read");
}

/*
 * Display() takes a linked list of FTSENT structures and passes the list
 * along with any other necessary information to the print function.  P
 * points to the parent directory of the display list.
 */
static void
display(p, list)
	FTSENT *p, *list;
{
	struct stat *sp;
	DISPLAY d;
	FTSENT *cur;
	NAMES *np;
	u_quad_t maxsize;
	u_long btotal, maxblock, maxinode, maxlen, maxnlink, maxlattr;
	int bcfile, flen, glen, ulen, lattrlen, maxflags, maxgroup, maxuser;
	char *initmax;
	int entries, needstats;
	char *user, *group, *flags, *lattr;
	char buf[STRBUF_SIZEOF(u_quad_t) + 1];
	char ngroup[STRBUF_SIZEOF(uid_t) + 1];
	char nuser[STRBUF_SIZEOF(gid_t) + 1];

	/*
	 * If list is NULL there are two possibilities: that the parent
	 * directory p has no children, or that fts_children() returned an
	 * error.  We ignore the error case since it will be replicated
	 * on the next call to fts_read() on the post-order visit to the
	 * directory p, and will be signaled in traverse().
	 */
	if (list == NULL)
		return;

	needstats = f_inode || f_longform || f_size;
	flen = 0;
	btotal = 0;
	initmax = getenv("LS_COLWIDTHS");
	/* Fields match -lios order.  New ones should be added at the end. */
	if (initmax != NULL && *initmax != '\0') {
		char *initmax2, *jinitmax;
		int ninitmax;

		/* Fill-in "::" as "0:0:0" for the sake of scanf. */
		jinitmax = initmax2 = malloc(strlen(initmax) * 2 + 2);
		if (jinitmax == NULL)
			err(1, NULL);
		if (*initmax == ':')
			strcpy(initmax2, "0:"), initmax2 += 2;
		else
			*initmax2++ = *initmax, *initmax2 = '\0';
		for (initmax++; *initmax != '\0'; initmax++) {
			if (initmax[-1] == ':' && initmax[0] == ':') {
				*initmax2++ = '0';
				*initmax2++ = initmax[0];
				initmax2[1] = '\0';
			} else {
				*initmax2++ = initmax[0];
				initmax2[1] = '\0';
			}
		}
		if (initmax2[-1] == ':')
			strcpy(initmax2, "0");

		ninitmax = sscanf(jinitmax,
		    " %lu : %lu : %lu : %i : %i : %i : %qu : %lu : %lu ",
		    &maxinode, &maxblock, &maxnlink, &maxuser,
		    &maxgroup, &maxflags, &maxsize, &maxlen, &maxlattr);
		f_notabs = 1;
		switch (ninitmax) {
		case 0:
			maxinode = 0;
		case 1:
			maxblock = 0;
		case 2:
			maxnlink = 0;
		case 3:
			maxuser = 0;
		case 4:
			maxgroup = 0;
		case 5:
			maxflags = 0;
		case 6:
			maxsize = 0;
		case 7:
			maxlen = 0;
		case 8:
			maxlattr = 0;
#ifdef COLORLS
			if (!f_color)
#endif
				f_notabs = 0;
		}
		maxinode = makenines(maxinode);
		maxblock = makenines(maxblock);
		maxnlink = makenines(maxnlink);
		maxsize = makenines(maxsize);
	} else if (initmax == NULL || *initmax == '\0')
		maxlattr = maxblock = maxinode = maxlen = maxnlink =
		    maxuser = maxgroup = maxflags = maxsize = 0;
	if (f_lomac)
		lomac_start();
	bcfile = 0;
	flags = NULL;
	for (cur = list, entries = 0; cur; cur = cur->fts_link) {
		if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) {
			warnx("%s: %s",
			    cur->fts_name, strerror(cur->fts_errno));
			cur->fts_number = NO_PRINT;
			rval = 1;
			continue;
		}
		/*
		 * P is NULL if list is the argv list, to which different rules
		 * apply.
		 */
		if (p == NULL) {
			/* Directories will be displayed later. */
			if (cur->fts_info == FTS_D && !f_listdir) {
				cur->fts_number = NO_PRINT;
				continue;
			}
		} else {
			/* Only display dot file if -a/-A set. */
			if (cur->fts_name[0] == '.' && !f_listdot) {
				cur->fts_number = NO_PRINT;
				continue;
			}
		}
		if (cur->fts_namelen > maxlen)
			maxlen = cur->fts_namelen;
		if (f_octal || f_octal_escape) {
			u_long t = len_octal(cur->fts_name, cur->fts_namelen);

			if (t > maxlen)
				maxlen = t;
		}
		if (needstats) {
			sp = cur->fts_statp;
			if (sp->st_blocks > maxblock)
				maxblock = sp->st_blocks;
			if (sp->st_ino > maxinode)
				maxinode = sp->st_ino;
			if (sp->st_nlink > maxnlink)
				maxnlink = sp->st_nlink;
			if (sp->st_size > maxsize)
				maxsize = sp->st_size;

			btotal += sp->st_blocks;
			if (f_longform) {
				if (f_numericonly) {
					(void)snprintf(nuser, sizeof(nuser),
					    "%u", sp->st_uid);
					(void)snprintf(ngroup, sizeof(ngroup),
					    "%u", sp->st_gid);
					user = nuser;
					group = ngroup;
				} else {
					user = user_from_uid(sp->st_uid, 0);
					group = group_from_gid(sp->st_gid, 0);
				}
				if ((ulen = strlen(user)) > maxuser)
					maxuser = ulen;
				if ((glen = strlen(group)) > maxgroup)
					maxgroup = glen;
				if (f_flags) {
					flags = fflagstostr(sp->st_flags);
					if (flags != NULL && *flags == '\0') {
						free(flags);
						flags = strdup("-");
					}
					if (flags == NULL)
						err(1, NULL);
					if ((flen = strlen(flags)) > maxflags)
						maxflags = flen;
				} else
					flen = 0;
				if (f_lomac) {
					lattr = get_lattr(cur);
					lattrlen = strlen(lattr);
					if (lattrlen > maxlattr)
						maxlattr = lattrlen;
				} else
					lattrlen = 0;

				if ((np = malloc(sizeof(NAMES) + lattrlen +
				    ulen + glen + flen + 4)) == NULL)
					err(1, NULL);

				np->user = &np->data[0];
				(void)strcpy(np->user, user);
				np->group = &np->data[ulen + 1];
				(void)strcpy(np->group, group);

				if (S_ISCHR(sp->st_mode) ||
				    S_ISBLK(sp->st_mode))
					bcfile = 1;

				if (f_flags) {
					np->flags = &np->data[ulen + glen + 2];
					(void)strcpy(np->flags, flags);
					free(flags);
				}
				if (f_lomac) {
					np->lattr = &np->data[ulen + glen + 2
					    + (f_flags ? flen + 1 : 0)];
					(void)strcpy(np->lattr, lattr);
					free(lattr);
				}
				cur->fts_pointer = np;
			}
		}
		++entries;
	}

	if (!entries)
		return;

	d.list = list;
	d.entries = entries;
	d.maxlen = maxlen;
	if (needstats) {
		d.bcfile = bcfile;
		d.btotal = btotal;
		(void)snprintf(buf, sizeof(buf), "%lu", maxblock);
		d.s_block = strlen(buf);
		d.s_flags = maxflags;
		d.s_lattr = maxlattr;
		d.s_group = maxgroup;
		(void)snprintf(buf, sizeof(buf), "%lu", maxinode);
		d.s_inode = strlen(buf);
		(void)snprintf(buf, sizeof(buf), "%lu", maxnlink);
		d.s_nlink = strlen(buf);
		(void)snprintf(buf, sizeof(buf), "%qu", maxsize);
		d.s_size = strlen(buf);
		d.s_user = maxuser;
	}
	printfcn(&d);
	output = 1;

	if (f_longform)
		for (cur = list; cur; cur = cur->fts_link)
			free(cur->fts_pointer);
	if (f_lomac)
		lomac_stop();
}

/*
 * Ordering for mastercmp:
 * If ordering the argv (fts_level = FTS_ROOTLEVEL) return non-directories
 * as larger than directories.  Within either group, use the sort function.
 * All other levels use the sort function.  Error entries remain unsorted.
 */
static int
mastercmp(a, b)
	const FTSENT **a, **b;
{
	int a_info, b_info;

	a_info = (*a)->fts_info;
	if (a_info == FTS_ERR)
		return (0);
	b_info = (*b)->fts_info;
	if (b_info == FTS_ERR)
		return (0);

	if (a_info == FTS_NS || b_info == FTS_NS)
		return (namecmp(*a, *b));

	if (a_info != b_info &&
	    (*a)->fts_level == FTS_ROOTLEVEL && !f_listdir) {
		if (a_info == FTS_D)
			return (1);
		if (b_info == FTS_D)
			return (-1);
	}
	return (sortfcn(*a, *b));
}

/*
 * Makenines() returns (10**n)-1.  This is useful for converting a width
 * into a number that wide in decimal.
 */
static u_quad_t
makenines(n)
	u_long n;
{
	u_long i;
	u_quad_t reg;

	reg = 1;
	/* Use a loop instead of pow(), since all values of n are small. */
	for (i = 0; i < n; i++)
		reg *= 10;
	reg--;

	return reg;
}
OpenPOWER on IntegriCloud