xref: /freebsd/bin/ls/ls.c (revision 41059135ce931c0f1014a999ffabc6bc470ce856)
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. 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("$FreeBSD$");
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 #include <libxo/xo.h>
70 
71 #include "ls.h"
72 #include "extern.h"
73 
74 /*
75  * Upward approximation of the maximum number of characters needed to
76  * represent a value of integral type t as a string, excluding the
77  * NUL terminator, with provision for a sign.
78  */
79 #define	STRBUF_SIZEOF(t)	(1 + CHAR_BIT * sizeof(t) / 3 + 1)
80 
81 /*
82  * MAKENINES(n) turns n into (10**n)-1.  This is useful for converting a width
83  * into a number that wide in decimal.
84  * XXX: Overflows are not considered.
85  */
86 #define MAKENINES(n)							\
87 	do {								\
88 		intmax_t i;						\
89 									\
90 		/* Use a loop as all values of n are small. */		\
91 		for (i = 1; n > 0; i *= 10)				\
92 			n--;						\
93 		n = i - 1;						\
94 	} while(0)
95 
96 static void	 display(const FTSENT *, FTSENT *, int);
97 static int	 mastercmp(const FTSENT * const *, const FTSENT * const *);
98 static void	 traverse(int, char **, int);
99 
100 static void (*printfcn)(const DISPLAY *);
101 static int (*sortfcn)(const FTSENT *, const FTSENT *);
102 
103 long blocksize;			/* block size units */
104 int termwidth = 80;		/* default terminal width */
105 
106 /* flags */
107        int f_accesstime;	/* use time of last access */
108        int f_birthtime;		/* use time of birth */
109        int f_flags;		/* show flags associated with a file */
110        int f_humanval;		/* show human-readable file sizes */
111        int f_inode;		/* print inode */
112 static int f_kblocks;		/* print size in kilobytes */
113        int f_label;		/* show MAC label */
114 static int f_listdir;		/* list actual directory, not contents */
115 static int f_listdot;		/* list files beginning with . */
116        int f_longform;		/* long listing format */
117 static int f_noautodot;		/* do not automatically enable -A for root */
118 static int f_nofollow;		/* don't follow symbolic link arguments */
119        int f_nonprint;		/* show unprintables as ? */
120 static int f_nosort;		/* don't sort output */
121        int f_notabs;		/* don't use tab-separated multi-col output */
122        int f_numericonly;	/* don't convert uid/gid to name */
123        int f_octal;		/* show unprintables as \xxx */
124        int f_octal_escape;	/* like f_octal but use C escapes if possible */
125 static int f_recursive;		/* ls subdirectories also */
126 static int f_reversesort;	/* reverse whatever sort is used */
127        int f_samesort;		/* sort time and name in same direction */
128        int f_sectime;		/* print full time information */
129 static int f_singlecol;		/* use single column output */
130        int f_size;		/* list size in short listing */
131 static int f_sizesort;
132        int f_slash;		/* similar to f_type, but only for dirs */
133        int f_sortacross;	/* sort across rows, not down columns */
134        int f_statustime;	/* use time of last mode change */
135 static int f_stream;		/* stream the output, separate with commas */
136        int f_thousands;		/* show file sizes with thousands separators */
137        char *f_timeformat;	/* user-specified time format */
138 static int f_timesort;		/* sort by time vice name */
139        int f_type;		/* add type character for non-regular files */
140 static int f_whiteout;		/* show whiteout entries */
141 
142 #ifdef COLORLS
143        int f_color;		/* add type in color for non-regular files */
144 
145 char *ansi_bgcol;		/* ANSI sequence to set background colour */
146 char *ansi_fgcol;		/* ANSI sequence to set foreground colour */
147 char *ansi_coloff;		/* ANSI sequence to reset colours */
148 char *attrs_off;		/* ANSI sequence to turn off attributes */
149 char *enter_bold;		/* ANSI sequence to set color to bold mode */
150 #endif
151 
152 static int rval;
153 
154 int
155 main(int argc, char *argv[])
156 {
157 	static char dot[] = ".", *dotav[] = {dot, NULL};
158 	struct winsize win;
159 	int ch, fts_options, notused;
160 	char *p;
161 	const char *errstr = NULL;
162 #ifdef COLORLS
163 	char termcapbuf[1024];	/* termcap definition buffer */
164 	char tcapbuf[512];	/* capability buffer */
165 	char *bp = tcapbuf;
166 #endif
167 
168 	(void)setlocale(LC_ALL, "");
169 
170 	/* Terminal defaults to -Cq, non-terminal defaults to -1. */
171 	if (isatty(STDOUT_FILENO)) {
172 		termwidth = 80;
173 		if ((p = getenv("COLUMNS")) != NULL && *p != '\0')
174 			termwidth = strtonum(p, 0, INT_MAX, &errstr);
175 		else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) != -1 &&
176 		    win.ws_col > 0)
177 			termwidth = win.ws_col;
178 		f_nonprint = 1;
179 	} else {
180 		f_singlecol = 1;
181 		/* retrieve environment variable, in case of explicit -C */
182 		p = getenv("COLUMNS");
183 		if (p)
184 			termwidth = strtonum(p, 0, INT_MAX, &errstr);
185 	}
186 
187 	if (errstr)
188 		termwidth = 80;
189 
190 	fts_options = FTS_PHYSICAL;
191 	if (getenv("LS_SAMESORT"))
192 		f_samesort = 1;
193 
194 	argc = xo_parse_args(argc, argv);
195 	if (argc < 0)
196 		return (1);
197 	xo_set_flags(NULL, XOF_COLUMNS);
198 	xo_set_version(LS_XO_VERSION);
199 
200 	while ((ch = getopt(argc, argv,
201 	    "1ABCD:FGHILPRSTUWXZabcdfghiklmnopqrstuwxy,")) != -1) {
202 		switch (ch) {
203 		/*
204 		 * The -1, -C, -x and -l options all override each other so
205 		 * shell aliasing works right.
206 		 */
207 		case '1':
208 			f_singlecol = 1;
209 			f_longform = 0;
210 			f_stream = 0;
211 			break;
212 		case 'C':
213 			f_sortacross = f_longform = f_singlecol = 0;
214 			break;
215 		case 'l':
216 			f_longform = 1;
217 			f_singlecol = 0;
218 			f_stream = 0;
219 			break;
220 		case 'x':
221 			f_sortacross = 1;
222 			f_longform = 0;
223 			f_singlecol = 0;
224 			break;
225 		/* The -c, -u, and -U options override each other. */
226 		case 'c':
227 			f_statustime = 1;
228 			f_accesstime = 0;
229 			f_birthtime = 0;
230 			break;
231 		case 'u':
232 			f_accesstime = 1;
233 			f_statustime = 0;
234 			f_birthtime = 0;
235 			break;
236 		case 'U':
237 			f_birthtime = 1;
238 			f_accesstime = 0;
239 			f_statustime = 0;
240 			break;
241 		case 'f':
242 			f_nosort = 1;
243 		       /* FALLTHROUGH */
244 		case 'a':
245 			fts_options |= FTS_SEEDOT;
246 			/* FALLTHROUGH */
247 		case 'A':
248 			f_listdot = 1;
249 			break;
250 		/* The -t and -S options override each other. */
251 		case 'S':
252 			f_sizesort = 1;
253 			f_timesort = 0;
254 			break;
255 		case 't':
256 			f_timesort = 1;
257 			f_sizesort = 0;
258 			break;
259 		/* Other flags.  Please keep alphabetic. */
260 		case ',':
261 			f_thousands = 1;
262 			break;
263 		case 'B':
264 			f_nonprint = 0;
265 			f_octal = 1;
266 			f_octal_escape = 0;
267 			break;
268 		case 'D':
269 			f_timeformat = optarg;
270 			break;
271 		case 'F':
272 			f_type = 1;
273 			f_slash = 0;
274 			break;
275 		case 'G':
276 			setenv("CLICOLOR", "", 1);
277 			break;
278 		case 'H':
279 			fts_options |= FTS_COMFOLLOW;
280 			f_nofollow = 0;
281 			break;
282 		case 'I':
283 			f_noautodot = 1;
284 			break;
285 		case 'L':
286 			fts_options &= ~FTS_PHYSICAL;
287 			fts_options |= FTS_LOGICAL;
288 			f_nofollow = 0;
289 			break;
290 		case 'P':
291 			fts_options &= ~FTS_COMFOLLOW;
292 			fts_options &= ~FTS_LOGICAL;
293 			fts_options |= FTS_PHYSICAL;
294 			f_nofollow = 1;
295 			break;
296 		case 'R':
297 			f_recursive = 1;
298 			break;
299 		case 'T':
300 			f_sectime = 1;
301 			break;
302 		case 'W':
303 			f_whiteout = 1;
304 			break;
305 		case 'Z':
306 			f_label = 1;
307 			break;
308 		case 'b':
309 			f_nonprint = 0;
310 			f_octal = 0;
311 			f_octal_escape = 1;
312 			break;
313 		/* The -d option turns off the -R option. */
314 		case 'd':
315 			f_listdir = 1;
316 			f_recursive = 0;
317 			break;
318 		case 'g':	/* Compatibility with 4.3BSD. */
319 			break;
320 		case 'h':
321 			f_humanval = 1;
322 			break;
323 		case 'i':
324 			f_inode = 1;
325 			break;
326 		case 'k':
327 			f_humanval = 0;
328 			f_kblocks = 1;
329 			break;
330 		case 'm':
331 			f_stream = 1;
332 			f_singlecol = 0;
333 			f_longform = 0;
334 			break;
335 		case 'n':
336 			f_numericonly = 1;
337 			break;
338 		case 'o':
339 			f_flags = 1;
340 			break;
341 		case 'p':
342 			f_slash = 1;
343 			f_type = 1;
344 			break;
345 		case 'q':
346 			f_nonprint = 1;
347 			f_octal = 0;
348 			f_octal_escape = 0;
349 			break;
350 		case 'r':
351 			f_reversesort = 1;
352 			break;
353 		case 's':
354 			f_size = 1;
355 			break;
356 		case 'w':
357 			f_nonprint = 0;
358 			f_octal = 0;
359 			f_octal_escape = 0;
360 			break;
361 		case 'y':
362 			f_samesort = 1;
363 			break;
364 		default:
365 		case '?':
366 			usage();
367 		}
368 	}
369 	argc -= optind;
370 	argv += optind;
371 
372 	/* Root is -A automatically unless -I. */
373 	if (!f_listdot && getuid() == (uid_t)0 && !f_noautodot)
374 		f_listdot = 1;
375 
376 	/* Enabling of colours is conditional on the environment. */
377 	if (getenv("CLICOLOR") &&
378 	    (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE")))
379 #ifdef COLORLS
380 		if (tgetent(termcapbuf, getenv("TERM")) == 1) {
381 			ansi_fgcol = tgetstr("AF", &bp);
382 			ansi_bgcol = tgetstr("AB", &bp);
383 			attrs_off = tgetstr("me", &bp);
384 			enter_bold = tgetstr("md", &bp);
385 
386 			/* To switch colours off use 'op' if
387 			 * available, otherwise use 'oc', or
388 			 * don't do colours at all. */
389 			ansi_coloff = tgetstr("op", &bp);
390 			if (!ansi_coloff)
391 				ansi_coloff = tgetstr("oc", &bp);
392 			if (ansi_fgcol && ansi_bgcol && ansi_coloff)
393 				f_color = 1;
394 		}
395 #else
396 		xo_warnx("color support not compiled in");
397 #endif /*COLORLS*/
398 
399 #ifdef COLORLS
400 	if (f_color) {
401 		/*
402 		 * We can't put tabs and color sequences together:
403 		 * column number will be incremented incorrectly
404 		 * for "stty oxtabs" mode.
405 		 */
406 		f_notabs = 1;
407 		(void)signal(SIGINT, colorquit);
408 		(void)signal(SIGQUIT, colorquit);
409 		parsecolors(getenv("LSCOLORS"));
410 	}
411 #endif
412 
413 	/*
414 	 * If not -F, -i, -l, -s, -S or -t options, don't require stat
415 	 * information, unless in color mode in which case we do
416 	 * need this to determine which colors to display.
417 	 */
418 	if (!f_inode && !f_longform && !f_size && !f_timesort &&
419 	    !f_sizesort && !f_type
420 #ifdef COLORLS
421 	    && !f_color
422 #endif
423 	    )
424 		fts_options |= FTS_NOSTAT;
425 
426 	/*
427 	 * If not -F, -P, -d or -l options, follow any symbolic links listed on
428 	 * the command line, unless in color mode in which case we need to
429 	 * distinguish file type for a symbolic link itself and its target.
430 	 */
431 	if (!f_nofollow && !f_longform && !f_listdir && (!f_type || f_slash)
432 #ifdef COLORLS
433 	    && !f_color
434 #endif
435 	    )
436 		fts_options |= FTS_COMFOLLOW;
437 
438 	/*
439 	 * If -W, show whiteout entries
440 	 */
441 #ifdef FTS_WHITEOUT
442 	if (f_whiteout)
443 		fts_options |= FTS_WHITEOUT;
444 #endif
445 
446 	/* If -i, -l or -s, figure out block size. */
447 	if (f_inode || f_longform || f_size) {
448 		if (f_kblocks)
449 			blocksize = 2;
450 		else {
451 			(void)getbsize(&notused, &blocksize);
452 			blocksize /= 512;
453 		}
454 	}
455 	/* Select a sort function. */
456 	if (f_reversesort) {
457 		if (!f_timesort && !f_sizesort)
458 			sortfcn = revnamecmp;
459 		else if (f_sizesort)
460 			sortfcn = revsizecmp;
461 		else if (f_accesstime)
462 			sortfcn = revacccmp;
463 		else if (f_birthtime)
464 			sortfcn = revbirthcmp;
465 		else if (f_statustime)
466 			sortfcn = revstatcmp;
467 		else		/* Use modification time. */
468 			sortfcn = revmodcmp;
469 	} else {
470 		if (!f_timesort && !f_sizesort)
471 			sortfcn = namecmp;
472 		else if (f_sizesort)
473 			sortfcn = sizecmp;
474 		else if (f_accesstime)
475 			sortfcn = acccmp;
476 		else if (f_birthtime)
477 			sortfcn = birthcmp;
478 		else if (f_statustime)
479 			sortfcn = statcmp;
480 		else		/* Use modification time. */
481 			sortfcn = modcmp;
482 	}
483 
484 	/* Select a print function. */
485 	if (f_singlecol)
486 		printfcn = printscol;
487 	else if (f_longform)
488 		printfcn = printlong;
489 	else if (f_stream)
490 		printfcn = printstream;
491 	else
492 		printfcn = printcol;
493 
494 	xo_open_container("file-information");
495 	if (argc)
496 		traverse(argc, argv, fts_options);
497 	else
498 		traverse(1, dotav, fts_options);
499 	xo_close_container("file-information");
500 	xo_finish();
501 	exit(rval);
502 }
503 
504 static int output;		/* If anything output. */
505 
506 /*
507  * Traverse() walks the logical directory structure specified by the argv list
508  * in the order specified by the mastercmp() comparison function.  During the
509  * traversal it passes linked lists of structures to display() which represent
510  * a superset (may be exact set) of the files to be displayed.
511  */
512 static void
513 traverse(int argc, char *argv[], int options)
514 {
515 	FTS *ftsp;
516 	FTSENT *p, *chp;
517 	int ch_options;
518 	int first = 1;
519 
520 	if ((ftsp =
521 	    fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL)
522 		xo_err(1, "fts_open");
523 
524 	/*
525 	 * We ignore errors from fts_children here since they will be
526 	 * replicated and signalled on the next call to fts_read() below.
527 	 */
528 	chp = fts_children(ftsp, 0);
529 	if (chp != NULL)
530 		display(NULL, chp, options);
531 	if (f_listdir)
532 		return;
533 
534 	/*
535 	 * If not recursing down this tree and don't need stat info, just get
536 	 * the names.
537 	 */
538 	ch_options = !f_recursive && !f_label &&
539 	    options & FTS_NOSTAT ? FTS_NAMEONLY : 0;
540 
541 	while ((p = fts_read(ftsp)) != NULL)
542 		switch (p->fts_info) {
543 		case FTS_DC:
544 			xo_warnx("%s: directory causes a cycle", p->fts_name);
545 			break;
546 		case FTS_DNR:
547 		case FTS_ERR:
548 			xo_warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
549 			rval = 1;
550 			break;
551 		case FTS_D:
552 			if (p->fts_level != FTS_ROOTLEVEL &&
553 			    p->fts_name[0] == '.' && !f_listdot)
554 				break;
555 
556 			if (first) {
557 				first = 0;
558 				xo_open_list("directory");
559 			}
560 			xo_open_instance("directory");
561 
562 			/*
563 			 * If already output something, put out a newline as
564 			 * a separator.  If multiple arguments, precede each
565 			 * directory with its name.
566 			 */
567 			if (output) {
568 				xo_emit("\n");
569 				(void)printname("path", p->fts_path);
570 				xo_emit(":\n");
571 			} else if (argc > 1) {
572 				(void)printname("path", p->fts_path);
573 				xo_emit(":\n");
574 				output = 1;
575 			}
576 			chp = fts_children(ftsp, ch_options);
577 			display(p, chp, options);
578 
579 			xo_close_instance("directory");
580 			if (!f_recursive && chp != NULL)
581 				(void)fts_set(ftsp, p, FTS_SKIP);
582 			break;
583 		default:
584 			break;
585 		}
586 	if (!first)
587 		xo_close_list("directory");
588 	if (errno)
589 		xo_err(1, "fts_read");
590 }
591 
592 /*
593  * Display() takes a linked list of FTSENT structures and passes the list
594  * along with any other necessary information to the print function.  P
595  * points to the parent directory of the display list.
596  */
597 static void
598 display(const FTSENT *p, FTSENT *list, int options)
599 {
600 	struct stat *sp;
601 	DISPLAY d;
602 	FTSENT *cur;
603 	NAMES *np;
604 	off_t maxsize;
605 	long maxblock;
606 	uintmax_t maxinode;
607 	u_long btotal, labelstrlen, maxlen, maxnlink;
608 	u_long maxlabelstr;
609 	u_int sizelen;
610 	int maxflags;
611 	gid_t maxgroup;
612 	uid_t maxuser;
613 	size_t flen, ulen, glen;
614 	char *initmax;
615 	int entries, needstats;
616 	const char *user, *group;
617 	char *flags, *labelstr = NULL;
618 	char ngroup[STRBUF_SIZEOF(uid_t) + 1];
619 	char nuser[STRBUF_SIZEOF(gid_t) + 1];
620 
621 	needstats = f_inode || f_longform || f_size;
622 	flen = 0;
623 	btotal = 0;
624 	initmax = getenv("LS_COLWIDTHS");
625 	/* Fields match -lios order.  New ones should be added at the end. */
626 	maxlabelstr = maxblock = maxlen = maxnlink = 0;
627 	maxuser = maxgroup = maxflags = maxsize = 0;
628 	maxinode = 0;
629 	if (initmax != NULL && *initmax != '\0') {
630 		char *initmax2, *jinitmax;
631 		int ninitmax;
632 
633 		/* Fill-in "::" as "0:0:0" for the sake of scanf. */
634 		jinitmax = malloc(strlen(initmax) * 2 + 2);
635 		if (jinitmax == NULL)
636 			xo_err(1, "malloc");
637 		initmax2 = jinitmax;
638 		if (*initmax == ':')
639 			strcpy(initmax2, "0:"), initmax2 += 2;
640 		else
641 			*initmax2++ = *initmax, *initmax2 = '\0';
642 		for (initmax++; *initmax != '\0'; initmax++) {
643 			if (initmax[-1] == ':' && initmax[0] == ':') {
644 				*initmax2++ = '0';
645 				*initmax2++ = initmax[0];
646 				initmax2[1] = '\0';
647 			} else {
648 				*initmax2++ = initmax[0];
649 				initmax2[1] = '\0';
650 			}
651 		}
652 		if (initmax2[-1] == ':')
653 			strcpy(initmax2, "0");
654 
655 		ninitmax = sscanf(jinitmax,
656 		    " %ju : %ld : %lu : %u : %u : %i : %jd : %lu : %lu ",
657 		    &maxinode, &maxblock, &maxnlink, &maxuser,
658 		    &maxgroup, &maxflags, &maxsize, &maxlen, &maxlabelstr);
659 		f_notabs = 1;
660 		switch (ninitmax) {
661 		case 0:
662 			maxinode = 0;
663 			/* FALLTHROUGH */
664 		case 1:
665 			maxblock = 0;
666 			/* FALLTHROUGH */
667 		case 2:
668 			maxnlink = 0;
669 			/* FALLTHROUGH */
670 		case 3:
671 			maxuser = 0;
672 			/* FALLTHROUGH */
673 		case 4:
674 			maxgroup = 0;
675 			/* FALLTHROUGH */
676 		case 5:
677 			maxflags = 0;
678 			/* FALLTHROUGH */
679 		case 6:
680 			maxsize = 0;
681 			/* FALLTHROUGH */
682 		case 7:
683 			maxlen = 0;
684 			/* FALLTHROUGH */
685 		case 8:
686 			maxlabelstr = 0;
687 			/* FALLTHROUGH */
688 #ifdef COLORLS
689 			if (!f_color)
690 #endif
691 				f_notabs = 0;
692 			/* FALLTHROUGH */
693 		default:
694 			break;
695 		}
696 		MAKENINES(maxinode);
697 		MAKENINES(maxblock);
698 		MAKENINES(maxnlink);
699 		MAKENINES(maxsize);
700 		free(jinitmax);
701 	}
702 	d.s_size = 0;
703 	sizelen = 0;
704 	flags = NULL;
705 	for (cur = list, entries = 0; cur; cur = cur->fts_link) {
706 		if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) {
707 			xo_warnx("%s: %s",
708 			    cur->fts_name, strerror(cur->fts_errno));
709 			cur->fts_number = NO_PRINT;
710 			rval = 1;
711 			continue;
712 		}
713 		/*
714 		 * P is NULL if list is the argv list, to which different rules
715 		 * apply.
716 		 */
717 		if (p == NULL) {
718 			/* Directories will be displayed later. */
719 			if (cur->fts_info == FTS_D && !f_listdir) {
720 				cur->fts_number = NO_PRINT;
721 				continue;
722 			}
723 		} else {
724 			/* Only display dot file if -a/-A set. */
725 			if (cur->fts_name[0] == '.' && !f_listdot) {
726 				cur->fts_number = NO_PRINT;
727 				continue;
728 			}
729 		}
730 		if (cur->fts_namelen > maxlen)
731 			maxlen = cur->fts_namelen;
732 		if (f_octal || f_octal_escape) {
733 			u_long t = len_octal(cur->fts_name, cur->fts_namelen);
734 
735 			if (t > maxlen)
736 				maxlen = t;
737 		}
738 		if (needstats) {
739 			sp = cur->fts_statp;
740 			if (sp->st_blocks > maxblock)
741 				maxblock = sp->st_blocks;
742 			if (sp->st_ino > maxinode)
743 				maxinode = sp->st_ino;
744 			if (sp->st_nlink > maxnlink)
745 				maxnlink = sp->st_nlink;
746 			if (sp->st_size > maxsize)
747 				maxsize = sp->st_size;
748 
749 			btotal += sp->st_blocks;
750 			if (f_longform) {
751 				if (f_numericonly) {
752 					(void)snprintf(nuser, sizeof(nuser),
753 					    "%u", sp->st_uid);
754 					(void)snprintf(ngroup, sizeof(ngroup),
755 					    "%u", sp->st_gid);
756 					user = nuser;
757 					group = ngroup;
758 				} else {
759 					user = user_from_uid(sp->st_uid, 0);
760 					group = group_from_gid(sp->st_gid, 0);
761 				}
762 				if ((ulen = strlen(user)) > maxuser)
763 					maxuser = ulen;
764 				if ((glen = strlen(group)) > maxgroup)
765 					maxgroup = glen;
766 				if (f_flags) {
767 					flags = fflagstostr(sp->st_flags);
768 					if (flags != NULL && *flags == '\0') {
769 						free(flags);
770 						flags = strdup("-");
771 					}
772 					if (flags == NULL)
773 						xo_err(1, "fflagstostr");
774 					flen = strlen(flags);
775 					if (flen > (size_t)maxflags)
776 						maxflags = flen;
777 				} else
778 					flen = 0;
779 				labelstr = NULL;
780 				if (f_label) {
781 					char name[PATH_MAX + 1];
782 					mac_t label;
783 					int error;
784 
785 					error = mac_prepare_file_label(&label);
786 					if (error == -1) {
787 						xo_warn("MAC label for %s/%s",
788 						    cur->fts_parent->fts_path,
789 						    cur->fts_name);
790 						goto label_out;
791 					}
792 
793 					if (cur->fts_level == FTS_ROOTLEVEL)
794 						snprintf(name, sizeof(name),
795 						    "%s", cur->fts_name);
796 					else
797 						snprintf(name, sizeof(name),
798 						    "%s/%s", cur->fts_parent->
799 						    fts_accpath, cur->fts_name);
800 
801 					if (options & FTS_LOGICAL)
802 						error = mac_get_file(name,
803 						    label);
804 					else
805 						error = mac_get_link(name,
806 						    label);
807 					if (error == -1) {
808 						xo_warn("MAC label for %s/%s",
809 						    cur->fts_parent->fts_path,
810 						    cur->fts_name);
811 						mac_free(label);
812 						goto label_out;
813 					}
814 
815 					error = mac_to_text(label,
816 					    &labelstr);
817 					if (error == -1) {
818 						xo_warn("MAC label for %s/%s",
819 						    cur->fts_parent->fts_path,
820 						    cur->fts_name);
821 						mac_free(label);
822 						goto label_out;
823 					}
824 					mac_free(label);
825 label_out:
826 					if (labelstr == NULL)
827 						labelstr = strdup("-");
828 					labelstrlen = strlen(labelstr);
829 					if (labelstrlen > maxlabelstr)
830 						maxlabelstr = labelstrlen;
831 				} else
832 					labelstrlen = 0;
833 
834 				if ((np = malloc(sizeof(NAMES) + labelstrlen +
835 				    ulen + glen + flen + 4)) == NULL)
836 					xo_err(1, "malloc");
837 
838 				np->user = &np->data[0];
839 				(void)strcpy(np->user, user);
840 				np->group = &np->data[ulen + 1];
841 				(void)strcpy(np->group, group);
842 
843 				if (S_ISCHR(sp->st_mode) ||
844 				    S_ISBLK(sp->st_mode)) {
845 					sizelen = snprintf(NULL, 0,
846 					    "%#jx", (uintmax_t)sp->st_rdev);
847 					if (d.s_size < sizelen)
848 						d.s_size = sizelen;
849 				}
850 
851 				if (f_flags) {
852 					np->flags = &np->data[ulen + glen + 2];
853 					(void)strcpy(np->flags, flags);
854 					free(flags);
855 				}
856 				if (f_label) {
857 					np->label = &np->data[ulen + glen + 2
858 					    + (f_flags ? flen + 1 : 0)];
859 					(void)strcpy(np->label, labelstr);
860 					free(labelstr);
861 				}
862 				cur->fts_pointer = np;
863 			}
864 		}
865 		++entries;
866 	}
867 
868 	/*
869 	 * If there are no entries to display, we normally stop right
870 	 * here.  However, we must continue if we have to display the
871 	 * total block count.  In this case, we display the total only
872 	 * on the second (p != NULL) pass.
873 	 */
874 	if (!entries && (!(f_longform || f_size) || p == NULL))
875 		return;
876 
877 	d.list = list;
878 	d.entries = entries;
879 	d.maxlen = maxlen;
880 	if (needstats) {
881 		d.btotal = btotal;
882 		d.s_block = snprintf(NULL, 0, "%lu", howmany(maxblock, blocksize));
883 		d.s_flags = maxflags;
884 		d.s_label = maxlabelstr;
885 		d.s_group = maxgroup;
886 		d.s_inode = snprintf(NULL, 0, "%ju", maxinode);
887 		d.s_nlink = snprintf(NULL, 0, "%lu", maxnlink);
888 		sizelen = f_humanval ? HUMANVALSTR_LEN :
889 		    snprintf(NULL, 0, "%ju", maxsize);
890 		if (d.s_size < sizelen)
891 			d.s_size = sizelen;
892 		d.s_user = maxuser;
893 	}
894 	if (f_thousands)			/* make space for commas */
895 		d.s_size += (d.s_size - 1) / 3;
896 	printfcn(&d);
897 	output = 1;
898 
899 	if (f_longform)
900 		for (cur = list; cur; cur = cur->fts_link)
901 			free(cur->fts_pointer);
902 }
903 
904 /*
905  * Ordering for mastercmp:
906  * If ordering the argv (fts_level = FTS_ROOTLEVEL) return non-directories
907  * as larger than directories.  Within either group, use the sort function.
908  * All other levels use the sort function.  Error entries remain unsorted.
909  */
910 static int
911 mastercmp(const FTSENT * const *a, const FTSENT * const *b)
912 {
913 	int a_info, b_info;
914 
915 	a_info = (*a)->fts_info;
916 	if (a_info == FTS_ERR)
917 		return (0);
918 	b_info = (*b)->fts_info;
919 	if (b_info == FTS_ERR)
920 		return (0);
921 
922 	if (a_info == FTS_NS || b_info == FTS_NS)
923 		return (namecmp(*a, *b));
924 
925 	if (a_info != b_info &&
926 	    (*a)->fts_level == FTS_ROOTLEVEL && !f_listdir) {
927 		if (a_info == FTS_D)
928 			return (1);
929 		if (b_info == FTS_D)
930 			return (-1);
931 	}
932 	return (sortfcn(*a, *b));
933 }
934