ls.c revision 88603 
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#ifndef lint
38static const char copyright[] =
39"@(#) Copyright (c) 1989, 1993, 1994\n\
40	The Regents of the University of California.  All rights reserved.\n";
41#endif /* not lint */
42
43#ifndef lint
44#if 0
45static char sccsid[] = "@(#)ls.c	8.5 (Berkeley) 4/2/94";
46#else
47static const char rcsid[] =
48  "$FreeBSD: head/bin/ls/ls.c 88603 2001-12-29 00:22:29Z joe $";
49#endif
50#endif /* not lint */
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 <limits.h>
61#include <locale.h>
62#include <stdio.h>
63#include <stdlib.h>
64#include <string.h>
65#include <unistd.h>
66#ifdef COLORLS
67#include <termcap.h>
68#include <signal.h>
69#endif
70
71#include "ls.h"
72#include "extern.h"
73#include "lomac.h"
74
75/*
76 * Upward approximation of the maximum number of characters needed to
77 * represent a value of integral type t as a string, excluding the
78 * NUL terminator, with provision for a sign.
79 */
80#define	STRBUF_SIZEOF(t)	(1 + CHAR_BIT * sizeof(t) / 3 + 1)
81
82static void	 display __P((FTSENT *, FTSENT *));
83static u_quad_t	 makenines __P((u_long));
84static int	 mastercmp __P((const FTSENT **, const FTSENT **));
85static void	 traverse __P((int, char **, int));
86
87static void (*printfcn) __P((DISPLAY *));
88static int (*sortfcn) __P((const FTSENT *, const FTSENT *));
89
90long blocksize;			/* block size units */
91int termwidth = 80;		/* default terminal width */
92
93/* flags */
94int f_accesstime;		/* use time of last access */
95int f_column;			/* columnated format */
96int f_flags;			/* show flags associated with a file */
97int f_humanval;			/* show human-readable file sizes */
98int f_inode;			/* print inode */
99int f_kblocks;			/* print size in kilobytes */
100int f_listdir;			/* list actual directory, not contents */
101int f_listdot;			/* list files beginning with . */
102int f_longform;			/* long listing format */
103int f_nonprint;			/* show unprintables as ? */
104int f_nosort;			/* don't sort output */
105int f_notabs;			/* don't use tab-separated multi-col output */
106int f_numericonly;		/* don't convert uid/gid to name */
107int f_octal;			/* show unprintables as \xxx */
108int f_octal_escape;		/* like f_octal but use C escapes if possible */
109int f_recursive;		/* ls subdirectories also */
110int f_reversesort;		/* reverse whatever sort is used */
111int f_sectime;			/* print the real time for all files */
112int f_singlecol;		/* use single column output */
113int f_size;			/* list size in short listing */
114int f_statustime;		/* use time of last mode change */
115int f_timesort;			/* sort by time vice name */
116int f_type;			/* add type character for non-regular files */
117int f_whiteout;			/* show whiteout entries */
118int f_lomac;			/* show LOMAC attributes */
119#ifdef COLORLS
120int f_color;			/* add type in color for non-regular files */
121
122char *ansi_bgcol;		/* ANSI sequence to set background colour */
123char *ansi_fgcol;		/* ANSI sequence to set foreground colour */
124char *ansi_coloff;		/* ANSI sequence to reset colours */
125char *attrs_off;		/* ANSI sequence to turn off attributes */
126char *enter_bold;		/* ANSI sequence to set color to bold mode */
127#endif
128
129int rval;
130
131int
132main(argc, argv)
133	int argc;
134	char *argv[];
135{
136	static char dot[] = ".", *dotav[] = {dot, NULL};
137	struct winsize win;
138	int ch, fts_options, notused;
139	char *p;
140#ifdef COLORLS
141	char termcapbuf[1024];	/* termcap definition buffer */
142	char tcapbuf[512];	/* capability buffer */
143	char *bp = tcapbuf;
144#endif
145
146	(void)setlocale(LC_ALL, "");
147
148	/* Terminal defaults to -Cq, non-terminal defaults to -1. */
149	if (isatty(STDOUT_FILENO)) {
150		if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) == -1 ||
151		    !win.ws_col) {
152			if ((p = getenv("COLUMNS")) != NULL)
153				termwidth = atoi(p);
154		} else
155			termwidth = win.ws_col;
156		f_column = f_nonprint = 1;
157	} else {
158		f_singlecol = 1;
159		/* retrieve environment variable, in case of explicit -C */
160		if ((p = getenv("COLUMNS")))
161			termwidth = atoi(p);
162	}
163
164	/* Root is -A automatically. */
165	if (!getuid())
166		f_listdot = 1;
167
168	fts_options = FTS_PHYSICAL;
169 	while ((ch = getopt(argc, argv, "1ABCFGHLPRTWZabcdfghiklnoqrstuw")) != -1) {
170		switch (ch) {
171		/*
172		 * The -1, -C and -l options all override each other so shell
173		 * aliasing works right.
174		 */
175		case '1':
176			f_singlecol = 1;
177			f_column = f_longform = 0;
178			break;
179		case 'B':
180			f_nonprint = 0;
181			f_octal = 1;
182			f_octal_escape = 0;
183			break;
184		case 'C':
185			f_column = 1;
186			f_longform = f_singlecol = 0;
187			break;
188		case 'l':
189			f_longform = 1;
190			f_column = f_singlecol = 0;
191			break;
192		/* The -c and -u options override each other. */
193		case 'c':
194			f_statustime = 1;
195			f_accesstime = 0;
196			break;
197		case 'u':
198			f_accesstime = 1;
199			f_statustime = 0;
200			break;
201		case 'F':
202			f_type = 1;
203			break;
204		case 'H':
205			fts_options |= FTS_COMFOLLOW;
206			break;
207		case 'G':
208			setenv("CLICOLOR", "", 1);
209			break;
210		case 'L':
211			fts_options &= ~FTS_PHYSICAL;
212			fts_options |= FTS_LOGICAL;
213			break;
214		case 'P':
215			fts_options &= ~FTS_COMFOLLOW;
216			fts_options &= ~FTS_LOGICAL;
217			fts_options |= FTS_PHYSICAL;
218			break;
219		case 'R':
220			f_recursive = 1;
221			break;
222		case 'a':
223			fts_options |= FTS_SEEDOT;
224			/* FALLTHROUGH */
225		case 'A':
226			f_listdot = 1;
227			break;
228		/* The -d option turns off the -R option. */
229		case 'd':
230			f_listdir = 1;
231			f_recursive = 0;
232			break;
233		case 'f':
234			f_nosort = 1;
235			break;
236		case 'g':	/* Compatibility with 4.3BSD. */
237			break;
238		case 'h':
239			f_humanval = 1;
240			break;
241		case 'i':
242			f_inode = 1;
243			break;
244		case 'k':
245			f_kblocks = 1;
246			break;
247		case 'n':
248			f_numericonly = 1;
249			break;
250		case 'o':
251			f_flags = 1;
252			break;
253		case 'q':
254			f_nonprint = 1;
255			f_octal = 0;
256			f_octal_escape = 0;
257			break;
258		case 'r':
259			f_reversesort = 1;
260			break;
261		case 's':
262			f_size = 1;
263			break;
264		case 'T':
265			f_sectime = 1;
266			break;
267		case 't':
268			f_timesort = 1;
269			break;
270		case 'W':
271			f_whiteout = 1;
272			break;
273		case 'b':
274			f_nonprint = 0;
275			f_octal = 0;
276			f_octal_escape = 1;
277			break;
278		case 'w':
279			f_nonprint = 0;
280			f_octal = 0;
281			f_octal_escape = 0;
282			break;
283		case 'Z':
284			f_lomac = 1;
285			break;
286		default:
287		case '?':
288			usage();
289		}
290	}
291	argc -= optind;
292	argv += optind;
293
294	/* Enabling of colours is conditional on the environment. */
295	if (getenv("CLICOLOR") &&
296	    (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE")))
297#ifdef COLORLS
298		if (tgetent(termcapbuf, getenv("TERM")) == 1) {
299			ansi_fgcol = tgetstr("AF", &bp);
300			ansi_bgcol = tgetstr("AB", &bp);
301			attrs_off = tgetstr("me", &bp);
302			enter_bold = tgetstr("md", &bp);
303
304			/* To switch colours off use 'op' if
305			 * available, otherwise use 'oc', or
306			 * don't do colours at all. */
307			ansi_coloff = tgetstr("op", &bp);
308			if (!ansi_coloff)
309				ansi_coloff = tgetstr("oc", &bp);
310			if (ansi_fgcol && ansi_bgcol && ansi_coloff)
311				f_color = 1;
312		}
313#else
314		(void)fprintf(stderr, "Color support not compiled in.\n");
315#endif /*COLORLS*/
316
317#ifdef COLORLS
318	if (f_color) {
319		/*
320		 * We can't put tabs and color sequences together:
321		 * column number will be incremented incorrectly
322		 * for "stty oxtabs" mode.
323		 */
324		f_notabs = 1;
325		(void)signal(SIGINT, colorquit);
326		(void)signal(SIGQUIT, colorquit);
327		parsecolors(getenv("LSCOLORS"));
328	}
329#endif
330
331	/*
332	 * If not -F, -i, -l, -s or -t options, don't require stat
333	 * information, unless in color mode in which case we do
334	 * need this to determine which colors to display.
335	 */
336	if (!f_inode && !f_longform && !f_size && !f_timesort && !f_type
337#ifdef COLORLS
338	    && !f_color
339#endif
340	    )
341		fts_options |= FTS_NOSTAT;
342
343	/*
344	 * If not -F, -d or -l options, follow any symbolic links listed on
345	 * the command line.
346	 */
347	if (!f_longform && !f_listdir && !f_type)
348		fts_options |= FTS_COMFOLLOW;
349
350	/*
351	 * If -W, show whiteout entries
352	 */
353#ifdef FTS_WHITEOUT
354	if (f_whiteout)
355		fts_options |= FTS_WHITEOUT;
356#endif
357
358	/* If -l or -s, figure out block size. */
359	if (f_longform || f_size) {
360		if (f_kblocks)
361			blocksize = 2;
362		else {
363			(void)getbsize(&notused, &blocksize);
364			blocksize /= 512;
365		}
366	}
367	/* Select a sort function. */
368	if (f_reversesort) {
369		if (!f_timesort)
370			sortfcn = revnamecmp;
371		else if (f_accesstime)
372			sortfcn = revacccmp;
373		else if (f_statustime)
374			sortfcn = revstatcmp;
375		else		/* Use modification time. */
376			sortfcn = revmodcmp;
377	} else {
378		if (!f_timesort)
379			sortfcn = namecmp;
380		else if (f_accesstime)
381			sortfcn = acccmp;
382		else if (f_statustime)
383			sortfcn = statcmp;
384		else		/* Use modification time. */
385			sortfcn = modcmp;
386	}
387
388	/* Select a print function. */
389	if (f_singlecol)
390		printfcn = printscol;
391	else if (f_longform)
392		printfcn = printlong;
393	else
394		printfcn = printcol;
395
396	if (argc)
397		traverse(argc, argv, fts_options);
398	else
399		traverse(1, dotav, fts_options);
400	exit(rval);
401}
402
403static int output;		/* If anything output. */
404
405/*
406 * Traverse() walks the logical directory structure specified by the argv list
407 * in the order specified by the mastercmp() comparison function.  During the
408 * traversal it passes linked lists of structures to display() which represent
409 * a superset (may be exact set) of the files to be displayed.
410 */
411static void
412traverse(argc, argv, options)
413	int argc, options;
414	char *argv[];
415{
416	FTS *ftsp;
417	FTSENT *p, *chp;
418	int ch_options;
419
420	if ((ftsp =
421	    fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL)
422		err(1, NULL);
423
424	display(NULL, fts_children(ftsp, 0));
425	if (f_listdir)
426		return;
427
428	/*
429	 * If not recursing down this tree and don't need stat info, just get
430	 * the names.
431	 */
432	ch_options = !f_recursive && options & FTS_NOSTAT ? FTS_NAMEONLY : 0;
433
434	while ((p = fts_read(ftsp)) != NULL)
435		switch (p->fts_info) {
436		case FTS_DC:
437			warnx("%s: directory causes a cycle", p->fts_name);
438			break;
439		case FTS_DNR:
440		case FTS_ERR:
441			warnx("%s: %s", p->fts_name, strerror(p->fts_errno));
442			rval = 1;
443			break;
444		case FTS_D:
445			if (p->fts_level != FTS_ROOTLEVEL &&
446			    p->fts_name[0] == '.' && !f_listdot)
447				break;
448
449			/*
450			 * If already output something, put out a newline as
451			 * a separator.  If multiple arguments, precede each
452			 * directory with its name.
453			 */
454			if (output)
455				(void)printf("\n%s:\n", p->fts_path);
456			else if (argc > 1) {
457				(void)printf("%s:\n", p->fts_path);
458				output = 1;
459			}
460			chp = fts_children(ftsp, ch_options);
461			display(p, chp);
462
463			if (!f_recursive && chp != NULL)
464				(void)fts_set(ftsp, p, FTS_SKIP);
465			break;
466		}
467	if (errno)
468		err(1, "fts_read");
469}
470
471/*
472 * Display() takes a linked list of FTSENT structures and passes the list
473 * along with any other necessary information to the print function.  P
474 * points to the parent directory of the display list.
475 */
476static void
477display(p, list)
478	FTSENT *p, *list;
479{
480	struct stat *sp;
481	DISPLAY d;
482	FTSENT *cur;
483	NAMES *np;
484	u_quad_t maxsize;
485	u_long btotal, maxblock, maxinode, maxlen, maxnlink, maxlattr;
486	int bcfile, flen, glen, ulen, lattrlen, maxflags, maxgroup, maxuser;
487	char *initmax;
488	int entries, needstats;
489	char *user, *group, *flags, *lattr;
490	char buf[STRBUF_SIZEOF(u_quad_t) + 1];
491	char ngroup[STRBUF_SIZEOF(uid_t) + 1];
492	char nuser[STRBUF_SIZEOF(gid_t) + 1];
493
494	/*
495	 * If list is NULL there are two possibilities: that the parent
496	 * directory p has no children, or that fts_children() returned an
497	 * error.  We ignore the error case since it will be replicated
498	 * on the next call to fts_read() on the post-order visit to the
499	 * directory p, and will be signaled in traverse().
500	 */
501	if (list == NULL)
502		return;
503
504	needstats = f_inode || f_longform || f_size;
505	flen = 0;
506	btotal = 0;
507	initmax = getenv("LS_COLWIDTHS");
508	/* Fields match -lios order.  New ones should be added at the end. */
509	if (initmax != NULL && *initmax != '\0') {
510		char *initmax2, *jinitmax;
511		int ninitmax;
512
513		/* Fill-in "::" as "0:0:0" for the sake of scanf. */
514		jinitmax = initmax2 = malloc(strlen(initmax) * 2 + 2);
515		if (jinitmax == NULL)
516			err(1, NULL);
517		if (*initmax == ':')
518			strcpy(initmax2, "0:"), initmax2 += 2;
519		else
520			*initmax2++ = *initmax, *initmax2 = '\0';
521		for (initmax++; *initmax != '\0'; initmax++) {
522			if (initmax[-1] == ':' && initmax[0] == ':') {
523				*initmax2++ = '0';
524				*initmax2++ = initmax[0];
525				initmax2[1] = '\0';
526			} else {
527				*initmax2++ = initmax[0];
528				initmax2[1] = '\0';
529			}
530		}
531		if (initmax2[-1] == ':')
532			strcpy(initmax2, "0");
533
534		ninitmax = sscanf(jinitmax,
535		    " %lu : %lu : %lu : %i : %i : %i : %qu : %lu : %lu ",
536		    &maxinode, &maxblock, &maxnlink, &maxuser,
537		    &maxgroup, &maxflags, &maxsize, &maxlen, &maxlattr);
538		f_notabs = 1;
539		switch (ninitmax) {
540		case 0:
541			maxinode = 0;
542		case 1:
543			maxblock = 0;
544		case 2:
545			maxnlink = 0;
546		case 3:
547			maxuser = 0;
548		case 4:
549			maxgroup = 0;
550		case 5:
551			maxflags = 0;
552		case 6:
553			maxsize = 0;
554		case 7:
555			maxlen = 0;
556		case 8:
557			maxlattr = 0;
558#ifdef COLORLS
559			if (!f_color)
560#endif
561				f_notabs = 0;
562		}
563		maxinode = makenines(maxinode);
564		maxblock = makenines(maxblock);
565		maxnlink = makenines(maxnlink);
566		maxsize = makenines(maxsize);
567	} else if (initmax == NULL || *initmax == '\0')
568		maxlattr = maxblock = maxinode = maxlen = maxnlink =
569		    maxuser = maxgroup = maxflags = maxsize = 0;
570	if (f_lomac)
571		lomac_start();
572	bcfile = 0;
573	flags = NULL;
574	for (cur = list, entries = 0; cur; cur = cur->fts_link) {
575		if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) {
576			warnx("%s: %s",
577			    cur->fts_name, strerror(cur->fts_errno));
578			cur->fts_number = NO_PRINT;
579			rval = 1;
580			continue;
581		}
582		/*
583		 * P is NULL if list is the argv list, to which different rules
584		 * apply.
585		 */
586		if (p == NULL) {
587			/* Directories will be displayed later. */
588			if (cur->fts_info == FTS_D && !f_listdir) {
589				cur->fts_number = NO_PRINT;
590				continue;
591			}
592		} else {
593			/* Only display dot file if -a/-A set. */
594			if (cur->fts_name[0] == '.' && !f_listdot) {
595				cur->fts_number = NO_PRINT;
596				continue;
597			}
598		}
599		if (cur->fts_namelen > maxlen)
600			maxlen = cur->fts_namelen;
601		if (f_octal || f_octal_escape) {
602			u_long t = len_octal(cur->fts_name, cur->fts_namelen);
603
604			if (t > maxlen)
605				maxlen = t;
606		}
607		if (needstats) {
608			sp = cur->fts_statp;
609			if (sp->st_blocks > maxblock)
610				maxblock = sp->st_blocks;
611			if (sp->st_ino > maxinode)
612				maxinode = sp->st_ino;
613			if (sp->st_nlink > maxnlink)
614				maxnlink = sp->st_nlink;
615			if (sp->st_size > maxsize)
616				maxsize = sp->st_size;
617
618			btotal += sp->st_blocks;
619			if (f_longform) {
620				if (f_numericonly) {
621					(void)snprintf(nuser, sizeof(nuser),
622					    "%u", sp->st_uid);
623					(void)snprintf(ngroup, sizeof(ngroup),
624					    "%u", sp->st_gid);
625					user = nuser;
626					group = ngroup;
627				} else {
628					user = user_from_uid(sp->st_uid, 0);
629					group = group_from_gid(sp->st_gid, 0);
630				}
631				if ((ulen = strlen(user)) > maxuser)
632					maxuser = ulen;
633				if ((glen = strlen(group)) > maxgroup)
634					maxgroup = glen;
635				if (f_flags) {
636					flags = fflagstostr(sp->st_flags);
637					if (flags != NULL && *flags == '\0') {
638						free(flags);
639						flags = strdup("-");
640					}
641					if (flags == NULL)
642						err(1, NULL);
643					if ((flen = strlen(flags)) > maxflags)
644						maxflags = flen;
645				} else
646					flen = 0;
647				if (f_lomac) {
648					lattr = get_lattr(cur);
649					lattrlen = strlen(lattr);
650					if (lattrlen > maxlattr)
651						maxlattr = lattrlen;
652				} else
653					lattrlen = 0;
654
655				if ((np = malloc(sizeof(NAMES) + lattrlen +
656				    ulen + glen + flen + 4)) == NULL)
657					err(1, NULL);
658
659				np->user = &np->data[0];
660				(void)strcpy(np->user, user);
661				np->group = &np->data[ulen + 1];
662				(void)strcpy(np->group, group);
663
664				if (S_ISCHR(sp->st_mode) ||
665				    S_ISBLK(sp->st_mode))
666					bcfile = 1;
667
668				if (f_flags) {
669					np->flags = &np->data[ulen + glen + 2];
670					(void)strcpy(np->flags, flags);
671					free(flags);
672				}
673				if (f_lomac) {
674					np->lattr = &np->data[ulen + glen + 2
675					    + (f_flags ? flen + 1 : 0)];
676					(void)strcpy(np->lattr, lattr);
677					free(lattr);
678				}
679				cur->fts_pointer = np;
680			}
681		}
682		++entries;
683	}
684
685	if (!entries)
686		return;
687
688	d.list = list;
689	d.entries = entries;
690	d.maxlen = maxlen;
691	if (needstats) {
692		d.bcfile = bcfile;
693		d.btotal = btotal;
694		(void)snprintf(buf, sizeof(buf), "%lu", maxblock);
695		d.s_block = strlen(buf);
696		d.s_flags = maxflags;
697		d.s_lattr = maxlattr;
698		d.s_group = maxgroup;
699		(void)snprintf(buf, sizeof(buf), "%lu", maxinode);
700		d.s_inode = strlen(buf);
701		(void)snprintf(buf, sizeof(buf), "%lu", maxnlink);
702		d.s_nlink = strlen(buf);
703		(void)snprintf(buf, sizeof(buf), "%qu", maxsize);
704		d.s_size = strlen(buf);
705		d.s_user = maxuser;
706	}
707	printfcn(&d);
708	output = 1;
709
710	if (f_longform)
711		for (cur = list; cur; cur = cur->fts_link)
712			free(cur->fts_pointer);
713	if (f_lomac)
714		lomac_stop();
715}
716
717/*
718 * Ordering for mastercmp:
719 * If ordering the argv (fts_level = FTS_ROOTLEVEL) return non-directories
720 * as larger than directories.  Within either group, use the sort function.
721 * All other levels use the sort function.  Error entries remain unsorted.
722 */
723static int
724mastercmp(a, b)
725	const FTSENT **a, **b;
726{
727	int a_info, b_info;
728
729	a_info = (*a)->fts_info;
730	if (a_info == FTS_ERR)
731		return (0);
732	b_info = (*b)->fts_info;
733	if (b_info == FTS_ERR)
734		return (0);
735
736	if (a_info == FTS_NS || b_info == FTS_NS)
737		return (namecmp(*a, *b));
738
739	if (a_info != b_info &&
740	    (*a)->fts_level == FTS_ROOTLEVEL && !f_listdir) {
741		if (a_info == FTS_D)
742			return (1);
743		if (b_info == FTS_D)
744			return (-1);
745	}
746	return (sortfcn(*a, *b));
747}
748
749/*
750 * Makenines() returns (10**n)-1.  This is useful for converting a width
751 * into a number that wide in decimal.
752 */
753static u_quad_t
754makenines(n)
755	u_long n;
756{
757	u_long i;
758	u_quad_t reg;
759
760	reg = 1;
761	/* Use a loop instead of pow(), since all values of n are small. */
762	for (i = 0; i < n; i++)
763		reg *= 10;
764	reg--;
765
766	return reg;
767}
768