xref: /illumos-gate/usr/src/cmd/ls/ls.c (revision f045d8d6fec1759551cc2bce1d26628931f14fce)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright (c) 1988, 2010, Oracle and/or its affiliates. All rights reserved.
24  */
25 
26 /*
27  * Copyright 2009 Jason King.  All rights reserved.
28  * Use is subject to license terms.
29  */
30 
31 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
32 /*	  All Rights Reserved  	*/
33 
34 /*	Copyright (c) 1987, 1988 Microsoft Corporation	*/
35 /*	  All Rights Reserved	*/
36 
37 /*
38  * List files or directories
39  */
40 
41 #include <sys/param.h>
42 #include <sys/types.h>
43 #include <sys/mkdev.h>
44 #include <sys/stat.h>
45 #include <sys/acl.h>
46 
47 #include <wchar.h>
48 #include <stdio.h>
49 #include <ctype.h>
50 #include <dirent.h>
51 #include <string.h>
52 #include <locale.h>
53 #include <curses.h>
54 #include <term.h>
55 #include <termios.h>
56 #include <stdlib.h>
57 #include <widec.h>
58 #include <locale.h>
59 #include <wctype.h>
60 #include <pwd.h>
61 #include <grp.h>
62 #include <limits.h>
63 #include <fcntl.h>
64 #include <unistd.h>
65 #include <libgen.h>
66 #include <errno.h>
67 #include <aclutils.h>
68 #include <libnvpair.h>
69 #include <libcmdutils.h>
70 #include <attr.h>
71 #include <getopt.h>
72 #include <inttypes.h>
73 
74 #ifndef STANDALONE
75 #define	TERMINFO
76 #endif
77 
78 /*
79  * -DNOTERMINFO can be defined on the cc command line to prevent
80  * the use of terminfo.  This should be done on systems not having
81  * the terminfo feature(pre 6.0 systems ?).
82  * As a result, columnar listings assume 80 columns for output,
83  * unless told otherwise via the COLUMNS environment variable.
84  */
85 #ifdef NOTERMINFO
86 #undef TERMINFO
87 #endif
88 
89 #include <term.h>
90 
91 #define	BFSIZE	16
92 /* this bit equals 1 in lflags of structure lbuf if *namep is to be used */
93 #define	ISARG	0100000
94 
95 /*
96  * this flag has been added to manipulate the display of S instead of 'l' when
97  * the file is not a regular file and when group execution bit is off
98  */
99 #define	LS_NOTREG	010000
100 
101 
102 /*
103  * Date and time formats
104  *
105  * b --- abbreviated month name
106  * e --- day number
107  * Y --- year in the form ccyy
108  * H --- hour(24-hour version)
109  * M --- minute
110  * F --- yyyy-mm-dd
111  * T --- hh:mm:ss
112  * z --- time zone as hours displacement from UTC
113  * note that %F and %z are from the ISO C99 standard and are
114  * not present in older C libraries
115  */
116 #define	FORMAT_OLD	" %b %e  %Y "
117 #define	FORMAT_NEW	" %b %e %H:%M "
118 #define	FORMAT_LONG	" %b %e %T %Y "
119 #define	FORMAT_ISO_FULL	" %%F %%T.%.09ld %%z "
120 #define	FORMAT_ISO_LONG	" %F %R "
121 #define	FORMAT_ISO_NEW	" %m-%d %H:%M "
122 #define	FORMAT_ISO_OLD	" %F "
123 
124 #undef BUFSIZ
125 #define	BUFSIZ 4096
126 #define	NUMBER_WIDTH 40
127 #define	FMTSIZE 50
128 
129 struct ditem {
130 	dev_t	dev;			/* directory items device number */
131 	ino_t	ino;			/* directory items inode number */
132 	struct ditem *parent;		/* dir items ptr to its parent's info */
133 };
134 /* Holds boolean extended system attributes */
135 struct attrb {
136 	char		*name;
137 };
138 /* Holds timestamp extended system attributes */
139 struct attrtm {
140 	char		*name;
141 	uint64_t	stm;
142 	uint64_t	nstm;
143 };
144 
145 #define	LSA_NONE	(0)
146 #define	LSA_BOLD	(1L << 0)
147 #define	LSA_UNDERSCORE	(1L << 1)
148 #define	LSA_BLINK	(1L << 2)
149 #define	LSA_REVERSE	(1L << 3)
150 #define	LSA_CONCEALED	(1L << 4)
151 
152 /* these should be ordered most general to most specific */
153 typedef enum LS_CFTYPE {
154 	LS_NORMAL,
155 	LS_FILE,
156 	LS_EXEC,
157 	LS_DIR,
158 	LS_LINK,
159 	LS_FIFO,
160 	LS_SOCK,
161 	LS_DOOR,
162 	LS_BLK,
163 	LS_CHR,
164 	LS_PORT,
165 	LS_STICKY,
166 	LS_ORPHAN,
167 	LS_SETGID,
168 	LS_SETUID,
169 	LS_OTHER_WRITABLE,
170 	LS_STICKY_OTHER_WRITABLE,
171 	LS_PAT
172 } ls_cftype_t;
173 
174 typedef struct {
175 	char		*sfx;
176 	ls_cftype_t	ftype;
177 	int		attr;
178 	int		fg;
179 	int		bg;
180 } ls_color_t;
181 
182 struct	lbuf	{
183 	union	{
184 		char	lname[MAXNAMLEN]; /* used for filename in a directory */
185 		char	*namep;		/* for name in ls-command; */
186 	} ln;
187 	char	ltype;		/* filetype */
188 	ino_t	lnum;		/* inode number of file */
189 	mode_t	lflags; 	/* 0777 bits used as r,w,x permissions */
190 	nlink_t	lnl;		/* number of links to file */
191 	uid_t	luid;
192 	gid_t	lgid;
193 	off_t	lsize;		/* filesize or major/minor dev numbers */
194 	blkcnt_t	lblocks;	/* number of file blocks */
195 	timestruc_t	lmtime;
196 	timestruc_t	lat;
197 	timestruc_t	lct;
198 	timestruc_t	lmt;
199 	char	*flinkto;	/* symbolic link contents */
200 	char 	acl;		/* indicate there are additional acl entries */
201 	int	cycle;		/* cycle detected flag */
202 	struct ditem *ancinfo;	/* maintains ancestor info */
203 	acl_t *aclp;		/* ACL if present */
204 	struct attrb *exttr;	/* boolean extended system attributes */
205 	struct attrtm *extm;	/* timestamp extended system attributes */
206 	ls_color_t	*color;	/* color for entry */
207 	ls_color_t	*link_color;	/* color for symlink */
208 };
209 
210 struct dchain {
211 	char *dc_name;		/* path name */
212 	int cycle_detected;	/* cycle detected visiting this directory */
213 	struct ditem *myancinfo;	/* this directory's ancestry info */
214 	struct dchain *dc_next;	/* next directory in the chain */
215 };
216 
217 /*
218  * A numbuf_t is used when converting a number to a string representation
219  */
220 typedef char numbuf_t[NUMBER_WIDTH];
221 
222 static struct dchain *dfirst;	/* start of the dir chain */
223 static struct dchain *cdfirst;	/* start of the current dir chain */
224 static struct dchain *dtemp;	/* temporary - used for linking */
225 static char *curdir;		/* the current directory */
226 
227 static int	first = 1;	/* true if first line is not yet printed */
228 static int	nfiles = 0;	/* number of flist entries in current use */
229 static int	nargs = 0;	/* number of flist entries used for arguments */
230 static int	maxfils = 0;	/* number of flist/lbuf entries allocated */
231 static int	maxn = 0;	/* number of flist entries with lbufs asigned */
232 static int	quantn = 64;	/* allocation growth quantum */
233 
234 static struct lbuf	*nxtlbf;	/* ptr to next lbuf to be assigned */
235 static struct lbuf	**flist;	/* ptr to list of lbuf pointers */
236 static struct lbuf	*gstat(char *, int, struct ditem *);
237 static char		*getname(uid_t);
238 static char		*getgroup(gid_t);
239 static char		*makename(char *, char *);
240 static void		pentry(struct lbuf *);
241 static void		column(void);
242 static void		pmode(mode_t aflag);
243 static void		selection(int *);
244 static void		new_line(void);
245 static void		rddir(char *, struct ditem *);
246 static int		strcol(unsigned char *);
247 static void		pem(struct lbuf **, struct lbuf **, int);
248 static void		pdirectory(char *, int, int, int, struct ditem *);
249 static struct cachenode *findincache(struct cachenode **, long);
250 static void		csi_pprintf(unsigned char *);
251 static void		pprintf(char *, char *);
252 static int		compar(struct lbuf **pp1, struct lbuf **pp2);
253 static char 		*number_to_scaled_string(numbuf_t buf,
254 			    unsigned long long number,
255 			    long scale);
256 static void		record_ancestry(char *, struct stat *, struct lbuf *,
257 			    int, struct ditem *);
258 static void		ls_color_init(void);
259 static ls_color_t	*ls_color_find(const char *, mode_t);
260 static void		ls_start_color(ls_color_t *);
261 static void		ls_end_color(void);
262 
263 static int		aflg;
264 static int		atflg;
265 static int		bflg;
266 static int		cflg;
267 static int		dflg;
268 static int		eflg;
269 static int		fflg;
270 static int		gflg;
271 static int		hflg;
272 static int		iflg;
273 static int		lflg;
274 static int		mflg;
275 static int		nflg;
276 static int		oflg;
277 static int		pflg;
278 static int		qflg;
279 static int		rflg = 1; /* init to 1 for special use in compar */
280 static int		sflg;
281 static int		tflg;
282 static int		uflg;
283 static int		Uflg;
284 static int		wflg;
285 static int		xflg;
286 static int		Aflg;
287 static int		Bflg;
288 static int		Cflg;
289 static int		Eflg;
290 static int		Fflg;
291 static int		Hflg;
292 static int		Lflg;
293 static int		Rflg;
294 static int		Sflg;
295 static int		vflg;
296 static int		Vflg;
297 static int		saflg;		/* boolean extended system attr. */
298 static int		sacnt;		/* number of extended system attr. */
299 static int		copt;
300 static int		vopt;
301 static int		tmflg;		/* create time ext. system attr. */
302 static int		ctm;
303 static int		atm;
304 static int		mtm;
305 static int		crtm;
306 static int		alltm;
307 static long		hscale;
308 static mode_t		flags;
309 static int		err = 0;	/* Contains return code */
310 static int		colorflg;
311 static int		file_typeflg;
312 
313 static uid_t		lastuid	= (uid_t)-1;
314 static gid_t		lastgid = (gid_t)-1;
315 static char		*lastuname = NULL;
316 static char		*lastgname = NULL;
317 
318 /* statreq > 0 if any of sflg, (n)lflg, tflg, Sflg, colorflg are on */
319 static int		statreq;
320 
321 static uint64_t		block_size = 1;
322 static char		*dotp = ".";
323 
324 static u_longlong_t 	tblocks; /* number of blocks of files in a directory */
325 static time_t		year, now;
326 
327 static int		num_cols = 80;
328 static int		colwidth;
329 static int		filewidth;
330 static int		fixedwidth;
331 static int		nomocore;
332 static int		curcol;
333 
334 static struct	winsize	win;
335 
336 /* if time_fmt_new is left NULL, time_fmt_old is used for all times */
337 static const char	*time_fmt_old = FORMAT_OLD;	/* non-recent files */
338 static const char	*time_fmt_new = FORMAT_NEW;	/* recent files */
339 static int		time_custom;	/* != 0 if a custom format */
340 static char	time_buf[FMTSIZE];	/* array to hold day and time */
341 
342 static int		lsc_debug;
343 static ls_color_t	*lsc_match;
344 static ls_color_t	*lsc_colors;
345 static size_t		lsc_ncolors;
346 static char		*lsc_bold;
347 static char		*lsc_underline;
348 static char		*lsc_blink;
349 static char		*lsc_reverse;
350 static char		*lsc_concealed;
351 static char		*lsc_none;
352 static char		*lsc_setfg;
353 static char		*lsc_setbg;
354 static ls_color_t	*lsc_orphan;
355 
356 #define	NOTWORKINGDIR(d, l)	(((l) < 2) || \
357 				    (strcmp((d) + (l) - 2, "/.") != 0))
358 
359 #define	NOTPARENTDIR(d, l)	(((l) < 3) || \
360 				    (strcmp((d) + (l) - 3, "/..") != 0))
361 /* Extended system attributes support */
362 static int get_sysxattr(char *, struct lbuf *);
363 static void set_sysattrb_display(char *, boolean_t, struct lbuf *);
364 static void set_sysattrtm_display(char *, struct lbuf *);
365 static void format_time(time_t, time_t);
366 static void print_time(struct lbuf *);
367 static void format_attrtime(struct lbuf *);
368 static void *xmalloc(size_t, struct lbuf *);
369 static void free_sysattr(struct lbuf *);
370 static nvpair_t *pair;
371 static nvlist_t	*response;
372 static int acl_err;
373 
374 const struct option long_options[] = {
375 	{ "all", no_argument, NULL, 'a' },
376 	{ "almost-all", no_argument, NULL, 'A' },
377 	{ "escape", no_argument, NULL, 'b' },
378 	{ "classify", no_argument, NULL, 'F' },
379 	{ "human-readable", no_argument, NULL, 'h' },
380 	{ "dereference", no_argument, NULL, 'L' },
381 	{ "dereference-command-line", no_argument, NULL, 'H' },
382 	{ "ignore-backups", no_argument, NULL, 'B' },
383 	{ "inode", no_argument, NULL, 'i' },
384 	{ "numeric-uid-gid", no_argument, NULL, 'n' },
385 	{ "no-group", no_argument, NULL, 'o' },
386 	{ "hide-control-chars", no_argument, NULL, 'q' },
387 	{ "reverse", no_argument, NULL, 'r' },
388 	{ "recursive", no_argument, NULL, 'R' },
389 	{ "size", no_argument, NULL, 's' },
390 	{ "width", required_argument, NULL, 'w' },
391 
392 	/* no short options for these */
393 	{ "block-size", required_argument, NULL, 0 },
394 	{ "full-time", no_argument, NULL, 0 },
395 	{ "si", no_argument, NULL, 0 },
396 	{ "color", optional_argument, NULL, 0 },
397 	{ "colour", optional_argument, NULL, 0},
398 	{ "file-type", no_argument, NULL, 0 },
399 	{ "time-style", required_argument, NULL, 0 },
400 
401 	{0, 0, 0, 0}
402 };
403 
404 int
405 main(int argc, char *argv[])
406 {
407 	int		c;
408 	int		i;
409 	int		width;
410 	int		amino = 0;
411 	int		opterr = 0;
412 	int		option_index = 0;
413 	struct lbuf	*ep;
414 	struct lbuf	lb;
415 	struct ditem	*myinfo;
416 
417 	(void) setlocale(LC_ALL, "");
418 #if !defined(TEXT_DOMAIN)	/* Should be defined by cc -D */
419 #define	TEXT_DOMAIN "SYS_TEST"	/* Use this only if it weren't */
420 #endif
421 	(void) textdomain(TEXT_DOMAIN);
422 #ifdef STANDALONE
423 	if (argv[0][0] == '\0')
424 		argc = getargv("ls", &argv, 0);
425 #endif
426 
427 	lb.lmtime.tv_sec = time(NULL);
428 	lb.lmtime.tv_nsec = 0;
429 	year = lb.lmtime.tv_sec - 6L*30L*24L*60L*60L; /* 6 months ago */
430 	now = lb.lmtime.tv_sec + 60;
431 	if (isatty(1)) {
432 		Cflg = 1;
433 		mflg = 0;
434 	}
435 
436 	while ((c = getopt_long(argc, argv,
437 	    "+aAbBcCdeEfFghHiklLmnopqrRsStuUw:x1@vV/:%:", long_options,
438 	    &option_index)) != -1)
439 		switch (c) {
440 		case 0:
441 			/* non-short options */
442 			if (strcmp(long_options[option_index].name,
443 			    "color") == 0 ||
444 			    strcmp(long_options[option_index].name,
445 			    "colour") == 0) {
446 				if (optarg == NULL ||
447 				    strcmp(optarg, "always") == 0 ||
448 				    strcmp(optarg, "yes") == 0 ||
449 				    strcmp(optarg, "force") == 0) {
450 					colorflg++;
451 					statreq++;
452 					continue;
453 				}
454 
455 				if (strcmp(optarg, "auto") == 0 ||
456 				    strcmp(optarg, "tty") == 0 ||
457 				    strcmp(optarg, "if-tty") == 0) {
458 					if (isatty(1) == 1) {
459 						colorflg++;
460 						statreq++;
461 					}
462 					continue;
463 				}
464 
465 				if (strcmp(optarg, "never") == 0 ||
466 				    strcmp(optarg, "no") == 0 ||
467 				    strcmp(optarg, "none") == 0) {
468 					colorflg = 0;
469 					continue;
470 				}
471 				(void) fprintf(stderr,
472 				    gettext("Invalid argument '%s' for "
473 				    "--color\n"), optarg);
474 				++opterr;
475 				continue;
476 			}
477 
478 			if (strcmp(long_options[option_index].name,
479 			    "si") == 0) {
480 				hflg++;
481 				hscale = 1000;
482 				continue;
483 			}
484 
485 			if (strcmp(long_options[option_index].name,
486 			    "block-size") == 0) {
487 				size_t scale_len = strlen(optarg);
488 				uint64_t scale = 1;
489 				uint64_t kilo = 1024;
490 				char scale_c;
491 
492 				if (scale_len == 0) {
493 					(void) fprintf(stderr, gettext(
494 					    "Invalid block size \'%s\'\n"),
495 					    optarg);
496 					exit(1);
497 				}
498 
499 				scale_c = optarg[scale_len - 1];
500 				if (scale_c == 'B') {
501 					/* need at least digit, scale, B */
502 					if (scale_len < 3) {
503 						(void) fprintf(stderr, gettext(
504 						    "Invalid block size "
505 						    "\'%s\'\n"), optarg);
506 						exit(1);
507 					}
508 					kilo = 1000;
509 					scale_c = optarg[scale_len - 2];
510 					if (isdigit(scale_c)) {
511 						(void) fprintf(stderr,
512 						    gettext("Invalid block size"
513 						    " \'%s\'\n"), optarg);
514 						exit(1);
515 					}
516 					/*
517 					 * make optarg[scale_len - 1] point to
518 					 * the scale factor
519 					 */
520 					--scale_len;
521 				}
522 
523 				switch (scale_c) {
524 				case 'y':
525 				case 'Y':
526 					scale *= kilo;
527 					/*FALLTHROUGH*/
528 				case 'Z':
529 				case 'z':
530 					scale *= kilo;
531 					/*FALLTHROUGH*/
532 				case 'E':
533 				case 'e':
534 					scale *= kilo;
535 					/*FALLTHROUGH*/
536 				case 'P':
537 				case 'p':
538 					scale *= kilo;
539 					/*FALLTHROUGH*/
540 				case 'T':
541 				case 't':
542 					scale *= kilo;
543 					/*FALLTHROUGH*/
544 				case 'G':
545 				case 'g':
546 					scale *= kilo;
547 					/*FALLTHROUGH*/
548 				case 'M':
549 				case 'm':
550 					scale *= kilo;
551 					/*FALLTHROUGH*/
552 				case 'K':
553 				case 'k':
554 					scale *= kilo;
555 					break;
556 				default:
557 					if (!isdigit(scale_c)) {
558 						(void) fprintf(stderr,
559 						    gettext("Invalid character "
560 						    "following block size in "
561 						    "\'%s\'\n"), optarg);
562 						exit(1);
563 					}
564 				}
565 
566 				/* NULL out scale constant if present */
567 				if (scale > 1 && !isdigit(scale_c))
568 					optarg[scale_len - 1] = '\0';
569 
570 				/* Based on testing, this is what GNU ls does */
571 				block_size = strtoll(optarg, NULL, 0) * scale;
572 				if (block_size < 1) {
573 					(void) fprintf(stderr,
574 					    gettext("Invalid block size "
575 					    "\'%s\'\n"), optarg);
576 					exit(1);
577 				}
578 				continue;
579 			}
580 
581 			if (strcmp(long_options[option_index].name,
582 			    "file-type") == 0) {
583 				file_typeflg++;
584 				Fflg++;
585 				statreq++;
586 				continue;
587 			}
588 
589 
590 			if (strcmp(long_options[option_index].name,
591 			    "full-time") == 0) {
592 				Eflg++;
593 				statreq++;
594 				eflg = 0;
595 				time_fmt_old = FORMAT_ISO_FULL;
596 				time_fmt_new = FORMAT_ISO_FULL;
597 				continue;
598 			}
599 
600 			if (strcmp(long_options[option_index].name,
601 			    "time-style") == 0) {
602 				/* like -E, but doesn't imply -l */
603 				if (strcmp(optarg, "full-iso") == 0) {
604 					Eflg++;
605 					statreq++;
606 					eflg = 0;
607 					time_fmt_old = FORMAT_ISO_FULL;
608 					time_fmt_new = FORMAT_ISO_FULL;
609 					continue;
610 				}
611 				if (strcmp(optarg, "long-iso") == 0) {
612 					statreq++;
613 					Eflg = 0;
614 					eflg = 0;
615 					time_fmt_old = FORMAT_ISO_LONG;
616 					time_fmt_new = FORMAT_ISO_LONG;
617 					continue;
618 				}
619 				if (strcmp(optarg, "iso") == 0) {
620 					statreq++;
621 					Eflg = 0;
622 					eflg = 0;
623 					time_fmt_old = FORMAT_ISO_OLD;
624 					time_fmt_new = FORMAT_ISO_NEW;
625 					continue;
626 				}
627 				/* should be the default */
628 				if (strcmp(optarg, "locale") == 0) {
629 					time_fmt_old = FORMAT_OLD;
630 					time_fmt_new = FORMAT_NEW;
631 					continue;
632 				}
633 				if (optarg[0] == '+') {
634 					char	*told, *tnew;
635 					char	*p;
636 					size_t	timelen = strlen(optarg);
637 
638 					p = strchr(optarg, '\n');
639 					if (p != NULL)
640 						*p++ = '\0';
641 
642 					/*
643 					 * Time format requires a leading and
644 					 * trailing space
645 					 * Add room for 3 spaces + 2 nulls
646 					 * The + in optarg is replaced with
647 					 * a space.
648 					 */
649 					timelen += 2 + 3;
650 					told = malloc(timelen);
651 					if (told == NULL) {
652 						perror("Out of memory");
653 						exit(1);
654 					}
655 
656 					(void) memset(told, 0, timelen);
657 					told[0] = ' ';
658 					(void) strlcat(told, &optarg[1],
659 					    timelen);
660 					(void) strlcat(told, " ", timelen);
661 
662 					if (p != NULL) {
663 						size_t tnew_len;
664 
665 						tnew = told + strlen(told) + 1;
666 						tnew_len = timelen -
667 						    strlen(told) - 1;
668 
669 						tnew[0] = ' ';
670 						(void) strlcat(tnew, p,
671 						    tnew_len);
672 						(void) strlcat(tnew, " ",
673 						    tnew_len);
674 						time_fmt_new =
675 						    (const char *)tnew;
676 					} else {
677 						time_fmt_new =
678 						    (const char *)told;
679 					}
680 
681 					time_fmt_old = (const char *)told;
682 					time_custom = 1;
683 					continue;
684 				}
685 				continue;
686 			}
687 
688 			continue;
689 
690 		case 'a':
691 			aflg++;
692 			continue;
693 		case 'A':
694 			Aflg++;
695 			continue;
696 		case 'b':
697 			bflg = 1;
698 			qflg = 0;
699 			continue;
700 		case 'B':
701 			Bflg = 1;
702 			continue;
703 		case 'c':
704 			uflg = 0;
705 			atm = 0;
706 			ctm = 0;
707 			mtm = 0;
708 			crtm = 0;
709 			cflg++;
710 			continue;
711 		case 'C':
712 			Cflg = 1;
713 			mflg = 0;
714 #ifdef XPG4
715 			lflg = 0;
716 #endif
717 			continue;
718 		case 'd':
719 			dflg++;
720 			continue;
721 		case 'e':
722 			eflg++;
723 			lflg++;
724 			statreq++;
725 			Eflg = 0;
726 			time_fmt_old = FORMAT_LONG;
727 			time_fmt_new = FORMAT_LONG;
728 			continue;
729 		case 'E':
730 			Eflg++;
731 			lflg++;
732 			statreq++;
733 			eflg = 0;
734 			time_fmt_old = FORMAT_ISO_FULL;
735 			time_fmt_new = FORMAT_ISO_FULL;
736 			continue;
737 		case 'f':
738 			fflg++;
739 			continue;
740 		case 'F':
741 			Fflg++;
742 			statreq++;
743 			continue;
744 		case 'g':
745 			gflg++;
746 			lflg++;
747 			statreq++;
748 			continue;
749 		case 'h':
750 			hflg++;
751 			hscale = 1024;
752 			continue;
753 		case 'H':
754 			Hflg++;
755 			/* -H and -L are mutually exclusive */
756 			Lflg = 0;
757 			continue;
758 		case 'i':
759 			iflg++;
760 			continue;
761 		case 'k':
762 			block_size = 1024;
763 			continue;
764 		case 'l':
765 			lflg++;
766 			statreq++;
767 			Cflg = 0;
768 			xflg = 0;
769 			mflg = 0;
770 			atflg = 0;
771 			continue;
772 		case 'L':
773 			Lflg++;
774 			/* -H and -L are mutually exclusive */
775 			Hflg = 0;
776 			continue;
777 		case 'm':
778 			Cflg = 0;
779 			mflg = 1;
780 #ifdef XPG4
781 			lflg = 0;
782 #endif
783 			continue;
784 		case 'n':
785 			nflg++;
786 			lflg++;
787 			statreq++;
788 			Cflg = 0;
789 			xflg = 0;
790 			mflg = 0;
791 			atflg = 0;
792 			continue;
793 		case 'o':
794 			oflg++;
795 			lflg++;
796 			statreq++;
797 			continue;
798 		case 'p':
799 			pflg++;
800 			statreq++;
801 			continue;
802 		case 'q':
803 			qflg = 1;
804 			bflg = 0;
805 			continue;
806 		case 'r':
807 			rflg = -1;
808 			continue;
809 		case 'R':
810 			Rflg++;
811 			statreq++;
812 			continue;
813 		case 's':
814 			sflg++;
815 			statreq++;
816 			continue;
817 		case 'S':
818 			tflg = 0;
819 			Uflg = 0;
820 			Sflg++;
821 			statreq++;
822 			continue;
823 		case 't':
824 			Sflg = 0;
825 			Uflg = 0;
826 			tflg++;
827 			statreq++;
828 			continue;
829 		case 'U':
830 			Sflg = 0;
831 			tflg = 0;
832 			Uflg++;
833 			continue;
834 		case 'u':
835 			cflg = 0;
836 			atm = 0;
837 			ctm = 0;
838 			mtm = 0;
839 			crtm = 0;
840 			uflg++;
841 			continue;
842 		case 'V':
843 			Vflg++;
844 			/*FALLTHROUGH*/
845 		case 'v':
846 			vflg++;
847 #if !defined(XPG4)
848 			if (lflg)
849 				continue;
850 #endif
851 			lflg++;
852 			statreq++;
853 			Cflg = 0;
854 			xflg = 0;
855 			mflg = 0;
856 			continue;
857 		case 'w':
858 			wflg++;
859 			num_cols = atoi(optarg);
860 			continue;
861 		case 'x':
862 			xflg = 1;
863 			Cflg = 1;
864 			mflg = 0;
865 #ifdef XPG4
866 			lflg = 0;
867 #endif
868 			continue;
869 		case '1':
870 			Cflg = 0;
871 			continue;
872 		case '@':
873 #if !defined(XPG4)
874 			/*
875 			 * -l has precedence over -@
876 			 */
877 			if (lflg)
878 				continue;
879 #endif
880 			atflg++;
881 			lflg++;
882 			statreq++;
883 			Cflg = 0;
884 			xflg = 0;
885 			mflg = 0;
886 			continue;
887 		case '/':
888 			saflg++;
889 			if (optarg != NULL) {
890 				if (strcmp(optarg, "c") == 0) {
891 					copt++;
892 					vopt = 0;
893 				} else if (strcmp(optarg, "v") == 0) {
894 					vopt++;
895 					copt = 0;
896 				} else
897 					opterr++;
898 			} else
899 				opterr++;
900 			lflg++;
901 			statreq++;
902 			Cflg = 0;
903 			xflg = 0;
904 			mflg = 0;
905 			continue;
906 		case '%':
907 			tmflg++;
908 			if (optarg != NULL) {
909 				if (strcmp(optarg, "ctime") == 0) {
910 					ctm++;
911 					atm = 0;
912 					mtm = 0;
913 					crtm = 0;
914 				} else if (strcmp(optarg, "atime") == 0) {
915 					atm++;
916 					ctm = 0;
917 					mtm = 0;
918 					crtm = 0;
919 					uflg = 0;
920 					cflg = 0;
921 				} else if (strcmp(optarg, "mtime") == 0) {
922 					mtm++;
923 					atm = 0;
924 					ctm = 0;
925 					crtm = 0;
926 					uflg = 0;
927 					cflg = 0;
928 				} else if (strcmp(optarg, "crtime") == 0) {
929 					crtm++;
930 					atm = 0;
931 					ctm = 0;
932 					mtm = 0;
933 					uflg = 0;
934 					cflg = 0;
935 				} else if (strcmp(optarg, "all") == 0) {
936 					alltm++;
937 					atm = 0;
938 					ctm = 0;
939 					mtm = 0;
940 					crtm = 0;
941 				} else
942 					opterr++;
943 			} else
944 				opterr++;
945 
946 			Sflg = 0;
947 			statreq++;
948 			mflg = 0;
949 			continue;
950 		case '?':
951 			opterr++;
952 			continue;
953 		}
954 
955 	if (opterr) {
956 		(void) fprintf(stderr, gettext(
957 		    "usage: ls -aAbBcCdeEfFghHiklLmnopqrRsStuUwxvV1@/%[c | v]"
958 		    "%%[atime | crtime | ctime | mtime | all]"
959 		    " [files]\n"));
960 		exit(2);
961 	}
962 
963 	if (fflg) {
964 		aflg++;
965 		lflg = 0;
966 		sflg = 0;
967 		tflg = 0;
968 		Sflg = 0;
969 		statreq = 0;
970 	}
971 
972 	fixedwidth = 2;
973 	if (pflg || Fflg)
974 		fixedwidth++;
975 	if (iflg)
976 		fixedwidth += 11;
977 	if (sflg)
978 		fixedwidth += 5;
979 
980 	if (lflg) {
981 		if (!gflg && !oflg)
982 			gflg = oflg = 1;
983 		else
984 		if (gflg && oflg)
985 			gflg = oflg = 0;
986 		Cflg = mflg = 0;
987 	}
988 
989 	if (!wflg && (Cflg || mflg)) {
990 		char *clptr;
991 		if ((clptr = getenv("COLUMNS")) != NULL)
992 			num_cols = atoi(clptr);
993 #ifdef TERMINFO
994 		else {
995 			if (ioctl(1, TIOCGWINSZ, &win) != -1)
996 				num_cols = (win.ws_col == 0 ? 80 : win.ws_col);
997 		}
998 #endif
999 	}
1000 
1001 	if (num_cols < 20 || num_cols > 1000)
1002 		/* assume it is an error */
1003 		num_cols = 80;
1004 
1005 	/* allocate space for flist and the associated	*/
1006 	/* data structures (lbufs)			*/
1007 	maxfils = quantn;
1008 	if (((flist = malloc(maxfils * sizeof (struct lbuf *))) == NULL) ||
1009 	    ((nxtlbf = malloc(quantn * sizeof (struct lbuf))) == NULL)) {
1010 		perror("ls");
1011 		exit(2);
1012 	}
1013 	if ((amino = (argc-optind)) == 0) {
1014 					/*
1015 					 * case when no names are given
1016 					 * in ls-command and current
1017 					 * directory is to be used
1018 					 */
1019 		argv[optind] = dotp;
1020 	}
1021 
1022 	for (i = 0; i < (amino ? amino : 1); i++) {
1023 
1024 		/*
1025 		 * If we are recursing, we need to make sure we don't
1026 		 * get into an endless loop.  To keep track of the inodes
1027 		 * (actually, just the directories) visited, we
1028 		 * maintain a directory ancestry list for a file
1029 		 * hierarchy.  As we go deeper into the hierarchy,
1030 		 * a parent directory passes its directory list
1031 		 * info (device id, inode number, and a pointer to
1032 		 * its parent) to each of its children.  As we
1033 		 * process a child that is a directory, we save
1034 		 * its own personal directory list info.  We then
1035 		 * check to see if the child has already been
1036 		 * processed by comparing its device id and inode
1037 		 * number from its own personal directory list info
1038 		 * to that of each of its ancestors.  If there is a
1039 		 * match, then we know we've detected a cycle.
1040 		 */
1041 		if (Rflg) {
1042 			/*
1043 			 * This is the first parent in this lineage
1044 			 * (first in a directory hierarchy), so
1045 			 * this parent's parent doesn't exist.  We
1046 			 * only initialize myinfo when we are
1047 			 * recursing, otherwise it's not used.
1048 			 */
1049 			if ((myinfo = (struct ditem *)malloc(
1050 			    sizeof (struct ditem))) == NULL) {
1051 				perror("ls");
1052 				exit(2);
1053 			} else {
1054 				myinfo->dev = 0;
1055 				myinfo->ino = 0;
1056 				myinfo->parent = NULL;
1057 			}
1058 		}
1059 
1060 		if (Cflg || mflg) {
1061 			width = strcol((unsigned char *)argv[optind]);
1062 			if (width > filewidth)
1063 				filewidth = width;
1064 		}
1065 		if ((ep = gstat((*argv[optind] ? argv[optind] : dotp),
1066 		    1, myinfo)) == NULL) {
1067 			if (nomocore)
1068 				exit(2);
1069 			err = 2;
1070 			optind++;
1071 			continue;
1072 		}
1073 		ep->ln.namep = (*argv[optind] ? argv[optind] : dotp);
1074 		ep->lflags |= ISARG;
1075 		optind++;
1076 		nargs++;	/* count good arguments stored in flist */
1077 		if (acl_err)
1078 			err = 2;
1079 	}
1080 	colwidth = fixedwidth + filewidth;
1081 	if (!Uflg)
1082 		qsort(flist, (unsigned)nargs, sizeof (struct lbuf *),
1083 		    (int (*)(const void *, const void *))compar);
1084 	for (i = 0; i < nargs; i++) {
1085 		if (flist[i]->ltype == 'd' && dflg == 0 || fflg)
1086 			break;
1087 	}
1088 
1089 	if (colorflg)
1090 		ls_color_init();
1091 
1092 	pem(&flist[0], &flist[i], 0);
1093 	for (; i < nargs; i++) {
1094 		pdirectory(flist[i]->ln.namep, Rflg ||
1095 		    (amino > 1), nargs, 0, flist[i]->ancinfo);
1096 		if (nomocore)
1097 			exit(2);
1098 		/* -R: print subdirectories found */
1099 		while (dfirst || cdfirst) {
1100 			/* Place direct subdirs on front in right order */
1101 			while (cdfirst) {
1102 				/* reverse cdfirst onto front of dfirst */
1103 				dtemp = cdfirst;
1104 				cdfirst = cdfirst -> dc_next;
1105 				dtemp -> dc_next = dfirst;
1106 				dfirst = dtemp;
1107 			}
1108 			/* take off first dir on dfirst & print it */
1109 			dtemp = dfirst;
1110 			dfirst = dfirst->dc_next;
1111 			pdirectory(dtemp->dc_name, 1, nargs,
1112 			    dtemp->cycle_detected, dtemp->myancinfo);
1113 			if (nomocore)
1114 				exit(2);
1115 			free(dtemp->dc_name);
1116 			free(dtemp);
1117 		}
1118 	}
1119 
1120 	return (err);
1121 }
1122 
1123 /*
1124  * pdirectory: print the directory name, labelling it if title is
1125  * nonzero, using lp as the place to start reading in the dir.
1126  */
1127 static void
1128 pdirectory(char *name, int title, int lp, int cdetect, struct ditem *myinfo)
1129 {
1130 	struct dchain *dp;
1131 	struct lbuf *ap;
1132 	char *pname;
1133 	int j;
1134 
1135 	filewidth = 0;
1136 	curdir = name;
1137 	if (title) {
1138 		if (!first)
1139 			(void) putc('\n', stdout);
1140 		pprintf(name, ":");
1141 		new_line();
1142 	}
1143 	/*
1144 	 * If there was a cycle detected, then notify and don't report
1145 	 * further.
1146 	 */
1147 	if (cdetect) {
1148 		if (lflg || sflg) {
1149 			curcol += printf(gettext("total %d"), 0);
1150 			new_line();
1151 		}
1152 		(void) fprintf(stderr, gettext(
1153 		    "ls: cycle detected for %s\n"), name);
1154 		return;
1155 	}
1156 
1157 	nfiles = lp;
1158 	rddir(name, myinfo);
1159 	if (nomocore)
1160 		return;
1161 	if (fflg == 0 && Uflg == 0)
1162 		qsort(&flist[lp], (unsigned)(nfiles - lp),
1163 		    sizeof (struct lbuf *),
1164 		    (int (*)(const void *, const void *))compar);
1165 	if (Rflg) {
1166 		for (j = nfiles - 1; j >= lp; j--) {
1167 			ap = flist[j];
1168 			if (ap->ltype == 'd' && strcmp(ap->ln.lname, ".") &&
1169 			    strcmp(ap->ln.lname, "..")) {
1170 				dp = malloc(sizeof (struct dchain));
1171 				if (dp == NULL) {
1172 					perror("ls");
1173 					exit(2);
1174 				}
1175 				pname = makename(curdir, ap->ln.lname);
1176 				if ((dp->dc_name = strdup(pname)) == NULL) {
1177 					perror("ls");
1178 					exit(2);
1179 				}
1180 				dp->cycle_detected = ap->cycle;
1181 				dp->myancinfo = ap->ancinfo;
1182 				dp->dc_next = dfirst;
1183 				dfirst = dp;
1184 			}
1185 		}
1186 	}
1187 	if (lflg || sflg) {
1188 		curcol += printf(gettext("total %llu"), tblocks);
1189 		new_line();
1190 	}
1191 	pem(&flist[lp], &flist[nfiles], lflg||sflg);
1192 }
1193 
1194 /*
1195  * pem: print 'em. Print a list of files (e.g. a directory) bounded
1196  * by slp and lp.
1197  */
1198 static void
1199 pem(struct lbuf **slp, struct lbuf **lp, int tot_flag)
1200 {
1201 	long row, nrows, i;
1202 	int col, ncols;
1203 	struct lbuf **ep;
1204 
1205 	if (Cflg || mflg) {
1206 		if (colwidth > num_cols) {
1207 			ncols = 1;
1208 		} else {
1209 			ncols = num_cols / colwidth;
1210 		}
1211 	}
1212 
1213 	if (ncols == 1 || mflg || xflg || !Cflg) {
1214 		for (ep = slp; ep < lp; ep++)
1215 			pentry(*ep);
1216 		new_line();
1217 		return;
1218 	}
1219 	/* otherwise print -C columns */
1220 	if (tot_flag) {
1221 		slp--;
1222 		row = 1;
1223 	}
1224 	else
1225 		row = 0;
1226 
1227 	nrows = (lp - slp - 1) / ncols + 1;
1228 	for (i = 0; i < nrows; i++, row++) {
1229 		for (col = 0; col < ncols; col++) {
1230 			ep = slp + (nrows * col) + row;
1231 			if (ep < lp)
1232 				pentry(*ep);
1233 		}
1234 		new_line();
1235 	}
1236 }
1237 
1238 /*
1239  * print one output entry;
1240  * if uid/gid is not found in the appropriate
1241  * file(passwd/group), then print uid/gid instead of
1242  * user/group name;
1243  */
1244 static void
1245 pentry(struct lbuf *ap)
1246 {
1247 	struct lbuf *p;
1248 	numbuf_t hbuf;
1249 	char *dmark = "";	/* Used if -p or -F option active */
1250 	char *cp;
1251 	char *str;
1252 
1253 	p = ap;
1254 	column();
1255 	if (iflg)
1256 		if (mflg && !lflg)
1257 			curcol += printf("%llu ", (long long)p->lnum);
1258 		else
1259 			curcol += printf("%10llu ", (long long)p->lnum);
1260 	if (sflg)
1261 		curcol += printf((mflg && !lflg) ? "%lld " :
1262 		    (p->lblocks < 10000) ? "%4lld " : "%lld ",
1263 		    (p->ltype != 'b' && p->ltype != 'c') ?
1264 		    p->lblocks : 0LL);
1265 	if (lflg) {
1266 		(void) putchar(p->ltype);
1267 		curcol++;
1268 		pmode(p->lflags);
1269 
1270 		/* ACL: additional access mode flag */
1271 		(void) putchar(p->acl);
1272 		curcol++;
1273 
1274 		curcol += printf("%3lu ", (ulong_t)p->lnl);
1275 		if (oflg)
1276 			if (!nflg) {
1277 				cp = getname(p->luid);
1278 				curcol += printf("%-8s ", cp);
1279 			} else
1280 				curcol += printf("%-8lu ", (ulong_t)p->luid);
1281 		if (gflg)
1282 			if (!nflg) {
1283 				cp = getgroup(p->lgid);
1284 				curcol += printf("%-8s ", cp);
1285 			} else
1286 				curcol += printf("%-8lu ", (ulong_t)p->lgid);
1287 		if (p->ltype == 'b' || p->ltype == 'c') {
1288 			curcol += printf("%3u, %2u",
1289 			    (uint_t)major((dev_t)p->lsize),
1290 			    (uint_t)minor((dev_t)p->lsize));
1291 		} else if (hflg && (p->lsize >= hscale)) {
1292 			curcol += printf("%7s",
1293 			    number_to_scaled_string(hbuf, p->lsize, hscale));
1294 		} else {
1295 			uint64_t bsize = p->lsize / block_size;
1296 
1297 			/*
1298 			 * Round up only when using blocks > 1 byte, otherwise
1299 			 * 'normal' sizes display 1 byte too large.
1300 			 */
1301 			if (p->lsize % block_size != 0)
1302 				bsize++;
1303 
1304 			curcol += printf("%7" PRIu64, bsize);
1305 		}
1306 		format_time(p->lmtime.tv_sec, p->lmtime.tv_nsec);
1307 		/* format extended system attribute time */
1308 		if (tmflg && crtm)
1309 			format_attrtime(p);
1310 
1311 		curcol += printf("%s", time_buf);
1312 
1313 	}
1314 	/*
1315 	 * prevent both "->" and trailing marks
1316 	 * from appearing
1317 	 */
1318 
1319 	if (pflg && p->ltype == 'd')
1320 		dmark = "/";
1321 
1322 	if (Fflg && !(lflg && p->flinkto)) {
1323 		if (p->ltype == 'd')
1324 			dmark = "/";
1325 		else if (p->ltype == 'D')
1326 			dmark = ">";
1327 		else if (p->ltype == 'p')
1328 			dmark = "|";
1329 		else if (p->ltype == 'l')
1330 			dmark = "@";
1331 		else if (p->ltype == 's')
1332 			dmark = "=";
1333 		else if (!file_typeflg &&
1334 		    (p->lflags & (S_IXUSR|S_IXGRP|S_IXOTH)))
1335 			dmark = "*";
1336 		else
1337 			dmark = "";
1338 	}
1339 
1340 	if (colorflg)
1341 		ls_start_color(p->color);
1342 
1343 	if (p->lflags & ISARG)
1344 		str = p->ln.namep;
1345 	else
1346 		str = p->ln.lname;
1347 
1348 	if (qflg || bflg) {
1349 		csi_pprintf((unsigned char *)str);
1350 
1351 		if (lflg && p->flinkto) {
1352 			if (colorflg)
1353 				ls_end_color();
1354 			csi_pprintf((unsigned char *)" -> ");
1355 			if (colorflg)
1356 				ls_start_color(p->link_color);
1357 			csi_pprintf((unsigned char *)p->flinkto);
1358 		} else {
1359 			csi_pprintf((unsigned char *)dmark);
1360 		}
1361 	} else {
1362 		(void) printf("%s", str);
1363 		curcol += strcol((unsigned char *)str);
1364 
1365 		if (lflg && p->flinkto) {
1366 			if (colorflg)
1367 				ls_end_color();
1368 			str = " -> ";
1369 			(void) printf("%s", str);
1370 			curcol += strcol((unsigned char *)str);
1371 			if (colorflg)
1372 				ls_start_color(p->link_color);
1373 			(void) printf("%s", p->flinkto);
1374 			curcol += strcol((unsigned char *)p->flinkto);
1375 		} else {
1376 			(void) printf("%s", dmark);
1377 			curcol += strcol((unsigned char *)dmark);
1378 		}
1379 	}
1380 
1381 	if (colorflg)
1382 		ls_end_color();
1383 
1384 	/* Display extended system attributes */
1385 	if (saflg) {
1386 		int i;
1387 
1388 		new_line();
1389 		(void) printf("	\t{");
1390 		if (p->exttr != NULL) {
1391 			int k = 0;
1392 			for (i = 0; i < sacnt; i++) {
1393 				if (p->exttr[i].name != NULL)
1394 					k++;
1395 			}
1396 			for (i = 0; i < sacnt; i++) {
1397 				if (p->exttr[i].name != NULL) {
1398 					(void) printf("%s", p->exttr[i].name);
1399 					k--;
1400 					if (vopt && (k != 0))
1401 						(void) printf(",");
1402 				}
1403 			}
1404 		}
1405 		(void) printf("}\n");
1406 	}
1407 	/* Display file timestamps and extended system attribute timestamps */
1408 	if (tmflg && alltm) {
1409 		new_line();
1410 		print_time(p);
1411 		new_line();
1412 	}
1413 	if (vflg) {
1414 		new_line();
1415 		if (p->aclp) {
1416 			acl_printacl(p->aclp, num_cols, Vflg);
1417 		}
1418 	}
1419 	/* Free extended system attribute lists */
1420 	if (saflg || tmflg)
1421 		free_sysattr(p);
1422 }
1423 
1424 /* print various r,w,x permissions */
1425 static void
1426 pmode(mode_t aflag)
1427 {
1428 	/* these arrays are declared static to allow initializations */
1429 	static int	m0[] = { 1, S_IRUSR, 'r', '-' };
1430 	static int	m1[] = { 1, S_IWUSR, 'w', '-' };
1431 	static int	m2[] = { 3, S_ISUID|S_IXUSR, 's', S_IXUSR,
1432 	    'x', S_ISUID, 'S', '-' };
1433 	static int	m3[] = { 1, S_IRGRP, 'r', '-' };
1434 	static int	m4[] = { 1, S_IWGRP, 'w', '-' };
1435 	static int	m5[] = { 4, S_ISGID|S_IXGRP, 's', S_IXGRP,
1436 				'x', S_ISGID|LS_NOTREG, 'S',
1437 #ifdef XPG4
1438 		S_ISGID, 'L', '-'};
1439 #else
1440 		S_ISGID, 'l', '-'};
1441 #endif
1442 	static int	m6[] = { 1, S_IROTH, 'r', '-' };
1443 	static int	m7[] = { 1, S_IWOTH, 'w', '-' };
1444 	static int	m8[] = { 3, S_ISVTX|S_IXOTH, 't', S_IXOTH,
1445 	    'x', S_ISVTX, 'T', '-'};
1446 
1447 	static int *m[] = { m0, m1, m2, m3, m4, m5, m6, m7, m8};
1448 
1449 	int **mp;
1450 
1451 	flags = aflag;
1452 	for (mp = &m[0]; mp < &m[sizeof (m) / sizeof (m[0])]; mp++)
1453 		selection(*mp);
1454 }
1455 
1456 static void
1457 selection(int *pairp)
1458 {
1459 	int n;
1460 
1461 	n = *pairp++;
1462 	while (n-->0) {
1463 		if ((flags & *pairp) == *pairp) {
1464 			pairp++;
1465 			break;
1466 		} else {
1467 			pairp += 2;
1468 		}
1469 	}
1470 	(void) putchar(*pairp);
1471 	curcol++;
1472 }
1473 
1474 /*
1475  * column: get to the beginning of the next column.
1476  */
1477 static void
1478 column(void)
1479 {
1480 	if (curcol == 0)
1481 		return;
1482 	if (mflg) {
1483 		(void) putc(',', stdout);
1484 		curcol++;
1485 		if (curcol + colwidth + 2 > num_cols) {
1486 			(void) putc('\n', stdout);
1487 			curcol = 0;
1488 			return;
1489 		}
1490 		(void) putc(' ', stdout);
1491 		curcol++;
1492 		return;
1493 	}
1494 	if (Cflg == 0) {
1495 		(void) putc('\n', stdout);
1496 		curcol = 0;
1497 		return;
1498 	}
1499 	if ((curcol / colwidth + 2) * colwidth > num_cols) {
1500 		(void) putc('\n', stdout);
1501 		curcol = 0;
1502 		return;
1503 	}
1504 	do {
1505 		(void) putc(' ', stdout);
1506 		curcol++;
1507 	} while (curcol % colwidth);
1508 }
1509 
1510 static void
1511 new_line(void)
1512 {
1513 	if (curcol) {
1514 		first = 0;
1515 		(void) putc('\n', stdout);
1516 		curcol = 0;
1517 	}
1518 }
1519 
1520 /*
1521  * read each filename in directory dir and store its
1522  * status in flist[nfiles]
1523  * use makename() to form pathname dir/filename;
1524  */
1525 static void
1526 rddir(char *dir, struct ditem *myinfo)
1527 {
1528 	struct dirent *dentry;
1529 	DIR *dirf;
1530 	int j;
1531 	struct lbuf *ep;
1532 	int width;
1533 
1534 	if ((dirf = opendir(dir)) == NULL) {
1535 		(void) fflush(stdout);
1536 		perror(dir);
1537 		err = 2;
1538 		return;
1539 	} else {
1540 		tblocks = 0;
1541 		for (;;) {
1542 			errno = 0;
1543 			if ((dentry = readdir(dirf)) == NULL)
1544 				break;
1545 			if (aflg == 0 && dentry->d_name[0] == '.' &&
1546 			    (Aflg == 0 ||
1547 			    dentry->d_name[1] == '\0' ||
1548 			    dentry->d_name[1] == '.' &&
1549 			    dentry->d_name[2] == '\0'))
1550 				/*
1551 				 * check for directory items '.', '..',
1552 				 *  and items without valid inode-number;
1553 				 */
1554 				continue;
1555 
1556 			/* skip entries ending in ~ if -B was given */
1557 			if (Bflg &&
1558 			    dentry->d_name[strlen(dentry->d_name) - 1] == '~')
1559 				continue;
1560 			if (Cflg || mflg) {
1561 				width = strcol((unsigned char *)dentry->d_name);
1562 				if (width > filewidth)
1563 					filewidth = width;
1564 			}
1565 			ep = gstat(makename(dir, dentry->d_name), 0, myinfo);
1566 			if (ep == NULL) {
1567 				if (nomocore)
1568 					exit(2);
1569 				continue;
1570 			} else {
1571 				ep->lnum = dentry->d_ino;
1572 				for (j = 0; dentry->d_name[j] != '\0'; j++)
1573 					ep->ln.lname[j] = dentry->d_name[j];
1574 				ep->ln.lname[j] = '\0';
1575 			}
1576 		}
1577 		if (errno) {
1578 			int sav_errno = errno;
1579 
1580 			(void) fprintf(stderr,
1581 			    gettext("ls: error reading directory %s: %s\n"),
1582 			    dir, strerror(sav_errno));
1583 		}
1584 		(void) closedir(dirf);
1585 		colwidth = fixedwidth + filewidth;
1586 	}
1587 }
1588 
1589 /*
1590  * Attaching a link to an inode's ancestors.  Search
1591  * through the ancestors to check for cycles (an inode which
1592  * we have already tracked in this inodes ancestry).  If a cycle
1593  * is detected, set the exit code and record the fact so that
1594  * it is reported at the right time when printing the directory.
1595  * In addition, set the exit code.  Note:  If the -a flag was
1596  * specified, we don't want to check for cycles for directories
1597  * ending in '/.' or '/..' unless they were specified on the
1598  * command line.
1599  */
1600 static void
1601 record_ancestry(char *file, struct stat *pstatb, struct lbuf *rep,
1602     int argfl, struct ditem *myparent)
1603 {
1604 	size_t		file_len;
1605 	struct ditem	*myinfo;
1606 	struct ditem	*tptr;
1607 
1608 	file_len = strlen(file);
1609 	if (!aflg || argfl || (NOTWORKINGDIR(file, file_len) &&
1610 	    NOTPARENTDIR(file, file_len))) {
1611 		/*
1612 		 * Add this inode's ancestry
1613 		 * info and insert it into the
1614 		 * ancestry list by pointing
1615 		 * back to its parent.  We save
1616 		 * it (in rep) with the other info
1617 		 * we're gathering for this inode.
1618 		 */
1619 		if ((myinfo = malloc(
1620 		    sizeof (struct ditem))) == NULL) {
1621 			perror("ls");
1622 			exit(2);
1623 		}
1624 		myinfo->dev = pstatb->st_dev;
1625 		myinfo->ino = pstatb->st_ino;
1626 		myinfo->parent = myparent;
1627 		rep->ancinfo = myinfo;
1628 
1629 		/*
1630 		 * If this node has the same device id and
1631 		 * inode number of one of its ancestors,
1632 		 * then we've detected a cycle.
1633 		 */
1634 		if (myparent != NULL) {
1635 			for (tptr = myparent; tptr->parent != NULL;
1636 			    tptr = tptr->parent) {
1637 				if ((tptr->dev == pstatb->st_dev) &&
1638 				    (tptr->ino == pstatb->st_ino)) {
1639 					/*
1640 					 * Cycle detected for this
1641 					 * directory.  Record the fact
1642 					 * it is a cycle so we don't
1643 					 * try to process this
1644 					 * directory as we are
1645 					 * walking through the
1646 					 * list of directories.
1647 					 */
1648 					rep->cycle = 1;
1649 					err = 2;
1650 					break;
1651 				}
1652 			}
1653 		}
1654 	}
1655 }
1656 
1657 /*
1658  * Do re-calculate the mode for group for ACE_T type of acls.
1659  * This is because, if the server's FS happens to be UFS, supporting
1660  * POSIX ACL's, then it does a special calculation of group mode
1661  * to be the bitwise OR of CLASS_OBJ and GROUP_OBJ (see PSARC/2001/717.)
1662  *
1663  * This algorithm is from the NFSv4 ACL Draft. Here a part of that
1664  * algorithm is used for the group mode calculation only.
1665  * What is modified here from the algorithm is that only the
1666  * entries with flags ACE_GROUP are considered. For each entry
1667  * with ACE_GROUP flag, the first occurance of a specific access
1668  * is checked if it is allowed.
1669  * We are not interested in perms for user and other, as they
1670  * were taken from st_mode value.
1671  * We are not interested in a_who field of ACE, as we need just
1672  * unix mode bits for the group.
1673  */
1674 
1675 #define	OWNED_GROUP	(ACE_GROUP | ACE_IDENTIFIER_GROUP)
1676 #define	IS_TYPE_ALLOWED(type)	((type) == ACE_ACCESS_ALLOWED_ACE_TYPE)
1677 
1678 int
1679 grp_mask_to_mode(struct lbuf *p)
1680 {
1681 	int mode = 0, seen = 0;
1682 	int acecnt;
1683 	int flags;
1684 	ace_t *ap;
1685 	acl_t *acep = p->aclp;
1686 
1687 	acecnt = acl_cnt(acep);
1688 	for (ap = (ace_t *)acl_data(acep); acecnt--; ap++) {
1689 
1690 		if (ap->a_type != ACE_ACCESS_ALLOWED_ACE_TYPE &&
1691 		    ap->a_type != ACE_ACCESS_DENIED_ACE_TYPE)
1692 			continue;
1693 
1694 		if (ap->a_flags & ACE_INHERIT_ONLY_ACE)
1695 			continue;
1696 
1697 		/*
1698 		 * if it is first group@ or first everyone@
1699 		 * for each of read, write and execute, then
1700 		 * that will be the group mode bit.
1701 		 */
1702 		flags = ap->a_flags & ACE_TYPE_FLAGS;
1703 		if (flags == OWNED_GROUP || (flags == ACE_IDENTIFIER_GROUP &&
1704 		    ap->a_who == p->lgid) || flags == ACE_EVERYONE) {
1705 			if (ap->a_access_mask & ACE_READ_DATA) {
1706 				if (!(seen & S_IRGRP)) {
1707 					seen |= S_IRGRP;
1708 					if (IS_TYPE_ALLOWED(ap->a_type))
1709 						mode |= S_IRGRP;
1710 				}
1711 			}
1712 			if (ap->a_access_mask & ACE_WRITE_DATA) {
1713 				if (!(seen & S_IWGRP)) {
1714 					seen |= S_IWGRP;
1715 					if (IS_TYPE_ALLOWED(ap->a_type))
1716 						mode |= S_IWGRP;
1717 				}
1718 			}
1719 			if (ap->a_access_mask & ACE_EXECUTE) {
1720 				if (!(seen & S_IXGRP)) {
1721 					seen |= S_IXGRP;
1722 					if (IS_TYPE_ALLOWED(ap->a_type))
1723 						mode |= S_IXGRP;
1724 				}
1725 			}
1726 		}
1727 	}
1728 	return (mode);
1729 }
1730 
1731 /*
1732  * get status of file and recomputes tblocks;
1733  * argfl = 1 if file is a name in ls-command and = 0
1734  * for filename in a directory whose name is an
1735  * argument in the command;
1736  * stores a pointer in flist[nfiles] and
1737  * returns that pointer;
1738  * returns NULL if failed;
1739  */
1740 static struct lbuf *
1741 gstat(char *file, int argfl, struct ditem *myparent)
1742 {
1743 	struct stat statb, statb1;
1744 	struct lbuf *rep;
1745 	char buf[BUFSIZ];
1746 	ssize_t cc;
1747 	int (*statf)() = ((Lflg) || (Hflg && argfl)) ? stat : lstat;
1748 	int aclcnt;
1749 	int error;
1750 	aclent_t *tp;
1751 	o_mode_t groupperm, mask;
1752 	int grouppermfound, maskfound;
1753 
1754 	if (nomocore)
1755 		return (NULL);
1756 
1757 	if (nfiles >= maxfils) {
1758 		/*
1759 		 * all flist/lbuf pair assigned files, time to get some
1760 		 * more space
1761 		 */
1762 		maxfils += quantn;
1763 		if (((flist = realloc(flist,
1764 		    maxfils * sizeof (struct lbuf *))) == NULL) ||
1765 		    ((nxtlbf = malloc(quantn *
1766 		    sizeof (struct lbuf))) == NULL)) {
1767 			perror("ls");
1768 			nomocore = 1;
1769 			return (NULL);
1770 		}
1771 	}
1772 
1773 	/*
1774 	 * nfiles is reset to nargs for each directory
1775 	 * that is given as an argument maxn is checked
1776 	 * to prevent the assignment of an lbuf to a flist entry
1777 	 * that already has one assigned.
1778 	 */
1779 	if (nfiles >= maxn) {
1780 		rep = nxtlbf++;
1781 		flist[nfiles++] = rep;
1782 		maxn = nfiles;
1783 	} else {
1784 		rep = flist[nfiles++];
1785 	}
1786 
1787 	/* Initialize */
1788 
1789 	rep->lflags = (mode_t)0;
1790 	rep->flinkto = NULL;
1791 	rep->cycle = 0;
1792 	rep->lat.tv_sec = time(NULL);
1793 	rep->lat.tv_nsec = 0;
1794 	rep->lct.tv_sec = time(NULL);
1795 	rep->lct.tv_nsec = 0;
1796 	rep->lmt.tv_sec = time(NULL);
1797 	rep->lmt.tv_nsec = 0;
1798 	rep->exttr = NULL;
1799 	rep->extm = NULL;
1800 	rep->color = NULL;
1801 	rep->link_color = NULL;
1802 
1803 	if (argfl || statreq) {
1804 		int doacl;
1805 
1806 		if (lflg)
1807 			doacl = 1;
1808 		else
1809 			doacl = 0;
1810 
1811 		if ((*statf)(file, &statb) < 0) {
1812 			if (argfl || errno != ENOENT ||
1813 			    (Lflg && lstat(file, &statb) == 0)) {
1814 				/*
1815 				 * Avoid race between readdir and lstat.
1816 				 * Print error message in case of dangling link.
1817 				 */
1818 				perror(file);
1819 				err = 2;
1820 			}
1821 			nfiles--;
1822 			return (NULL);
1823 		}
1824 
1825 		/*
1826 		 * If -H was specified, and the file linked to was
1827 		 * not a directory, then we need to get the info
1828 		 * for the symlink itself.
1829 		 */
1830 		if ((Hflg) && (argfl) &&
1831 		    ((statb.st_mode & S_IFMT) != S_IFDIR)) {
1832 			if (lstat(file, &statb) < 0) {
1833 				perror(file);
1834 				err = 2;
1835 			}
1836 		}
1837 
1838 		rep->lnum = statb.st_ino;
1839 		rep->lsize = statb.st_size;
1840 		rep->lblocks = statb.st_blocks;
1841 		if (colorflg)
1842 			rep->color = ls_color_find(file, statb.st_mode);
1843 
1844 		switch (statb.st_mode & S_IFMT) {
1845 		case S_IFDIR:
1846 			rep->ltype = 'd';
1847 			if (Rflg) {
1848 				record_ancestry(file, &statb, rep,
1849 				    argfl, myparent);
1850 			}
1851 			break;
1852 		case S_IFBLK:
1853 			rep->ltype = 'b';
1854 			rep->lsize = (off_t)statb.st_rdev;
1855 			break;
1856 		case S_IFCHR:
1857 			rep->ltype = 'c';
1858 			rep->lsize = (off_t)statb.st_rdev;
1859 			break;
1860 		case S_IFIFO:
1861 			rep->ltype = 'p';
1862 			break;
1863 		case S_IFSOCK:
1864 			rep->ltype = 's';
1865 			rep->lsize = 0;
1866 			break;
1867 		case S_IFLNK:
1868 			/* symbolic links may not have ACLs, so elide acl() */
1869 			if ((Lflg == 0) || (Hflg == 0) ||
1870 			    ((Hflg) && (!argfl))) {
1871 				doacl = 0;
1872 			}
1873 			rep->ltype = 'l';
1874 			if (lflg || colorflg) {
1875 				cc = readlink(file, buf, BUFSIZ);
1876 				if (cc < 0)
1877 					break;
1878 
1879 				/*
1880 				 * follow the symbolic link
1881 				 * to generate the appropriate
1882 				 * Fflg marker for the object
1883 				 * eg, /bin -> /sym/bin/
1884 				 */
1885 				error = 0;
1886 				if (Fflg || pflg || colorflg)
1887 					error = stat(file, &statb1);
1888 
1889 				if (colorflg) {
1890 					if (error >= 0)
1891 						rep->link_color =
1892 						    ls_color_find(file,
1893 						    statb1.st_mode);
1894 					else
1895 						rep->link_color =
1896 						    lsc_orphan;
1897 				}
1898 
1899 				if ((Fflg || pflg) && error >= 0) {
1900 					switch (statb1.st_mode & S_IFMT) {
1901 					case S_IFDIR:
1902 						buf[cc++] = '/';
1903 						break;
1904 					case S_IFSOCK:
1905 						buf[cc++] = '=';
1906 						break;
1907 					case S_IFDOOR:
1908 						buf[cc++] = '>';
1909 						break;
1910 					case S_IFIFO:
1911 						buf[cc++] = '|';
1912 						break;
1913 					default:
1914 						if ((statb1.st_mode & ~S_IFMT) &
1915 						    (S_IXUSR|S_IXGRP| S_IXOTH))
1916 							buf[cc++] = '*';
1917 						break;
1918 					}
1919 				}
1920 				buf[cc] = '\0';
1921 				rep->flinkto = strdup(buf);
1922 				break;
1923 			}
1924 
1925 			/*
1926 			 * ls /sym behaves differently from ls /sym/
1927 			 * when /sym is a symbolic link. This is fixed
1928 			 * when explicit arguments are specified.
1929 			 */
1930 
1931 #ifdef XPG6
1932 			/* Do not follow a symlink when -F is specified */
1933 			if ((!argfl) || (argfl && Fflg) ||
1934 			    (stat(file, &statb1) < 0))
1935 #else
1936 			/* Follow a symlink when -F is specified */
1937 			if (!argfl || stat(file, &statb1) < 0)
1938 #endif /* XPG6 */
1939 				break;
1940 			if ((statb1.st_mode & S_IFMT) == S_IFDIR) {
1941 				statb = statb1;
1942 				rep->ltype = 'd';
1943 				rep->lsize = statb1.st_size;
1944 				if (Rflg) {
1945 					record_ancestry(file, &statb, rep,
1946 					    argfl, myparent);
1947 				}
1948 			}
1949 			break;
1950 		case S_IFDOOR:
1951 			rep->ltype = 'D';
1952 			break;
1953 		case S_IFREG:
1954 			rep->ltype = '-';
1955 			break;
1956 		case S_IFPORT:
1957 			rep->ltype = 'P';
1958 			break;
1959 		default:
1960 			rep->ltype = '?';
1961 			break;
1962 		}
1963 		rep->lflags = statb.st_mode & ~S_IFMT;
1964 
1965 		if (!S_ISREG(statb.st_mode))
1966 			rep->lflags |= LS_NOTREG;
1967 
1968 		rep->luid = statb.st_uid;
1969 		rep->lgid = statb.st_gid;
1970 		rep->lnl = statb.st_nlink;
1971 		if (uflg || (tmflg && atm))
1972 			rep->lmtime = statb.st_atim;
1973 		else if (cflg || (tmflg && ctm))
1974 			rep->lmtime = statb.st_ctim;
1975 		else
1976 			rep->lmtime = statb.st_mtim;
1977 		rep->lat = statb.st_atim;
1978 		rep->lct = statb.st_ctim;
1979 		rep->lmt = statb.st_mtim;
1980 
1981 		/* ACL: check acl entries count */
1982 		if (doacl) {
1983 
1984 			error = acl_get(file, 0, &rep->aclp);
1985 			if (error) {
1986 				(void) fprintf(stderr,
1987 				    gettext("ls: can't read ACL on %s: %s\n"),
1988 				    file, acl_strerror(error));
1989 				rep->acl = ' ';
1990 				acl_err++;
1991 				return (rep);
1992 			}
1993 
1994 			rep->acl = ' ';
1995 
1996 			if (rep->aclp &&
1997 			    ((acl_flags(rep->aclp) & ACL_IS_TRIVIAL) == 0)) {
1998 				rep->acl = '+';
1999 				/*
2000 				 * Special handling for ufs aka aclent_t ACL's
2001 				 */
2002 				if (acl_type(rep->aclp) == ACLENT_T) {
2003 					/*
2004 					 * For files with non-trivial acls, the
2005 					 * effective group permissions are the
2006 					 * intersection of the GROUP_OBJ value
2007 					 * and the CLASS_OBJ (acl mask) value.
2008 					 * Determine both the GROUP_OBJ and
2009 					 * CLASS_OBJ for this file and insert
2010 					 * the logical AND of those two values
2011 					 * in the group permissions field
2012 					 * of the lflags value for this file.
2013 					 */
2014 
2015 					/*
2016 					 * Until found in acl list, assume
2017 					 * maximum permissions for both group
2018 					 * a nd mask.  (Just in case the acl
2019 					 * lacks either value for some reason.)
2020 					 */
2021 					groupperm = 07;
2022 					mask = 07;
2023 					grouppermfound = 0;
2024 					maskfound = 0;
2025 					aclcnt = acl_cnt(rep->aclp);
2026 					for (tp =
2027 					    (aclent_t *)acl_data(rep->aclp);
2028 					    aclcnt--; tp++) {
2029 						if (tp->a_type == GROUP_OBJ) {
2030 							groupperm = tp->a_perm;
2031 							grouppermfound = 1;
2032 							continue;
2033 						}
2034 						if (tp->a_type == CLASS_OBJ) {
2035 							mask = tp->a_perm;
2036 							maskfound = 1;
2037 						}
2038 						if (grouppermfound && maskfound)
2039 							break;
2040 					}
2041 
2042 
2043 					/* reset all the group bits */
2044 					rep->lflags &= ~S_IRWXG;
2045 
2046 					/*
2047 					 * Now set them to the logical AND of
2048 					 * the GROUP_OBJ permissions and the
2049 					 * acl mask.
2050 					 */
2051 
2052 					rep->lflags |= (groupperm & mask) << 3;
2053 
2054 				} else if (acl_type(rep->aclp) == ACE_T) {
2055 					int mode;
2056 					mode = grp_mask_to_mode(rep);
2057 					rep->lflags &= ~S_IRWXG;
2058 					rep->lflags |= mode;
2059 				}
2060 			}
2061 
2062 			if (!vflg && !Vflg && rep->aclp) {
2063 				acl_free(rep->aclp);
2064 				rep->aclp = NULL;
2065 			}
2066 
2067 			if (atflg && pathconf(file, _PC_XATTR_EXISTS) == 1)
2068 				rep->acl = '@';
2069 
2070 		} else
2071 			rep->acl = ' ';
2072 
2073 		/* mask ISARG and other file-type bits */
2074 
2075 		if (rep->ltype != 'b' && rep->ltype != 'c')
2076 			tblocks += rep->lblocks;
2077 
2078 		/* Get extended system attributes */
2079 
2080 		if ((saflg || (tmflg && crtm) || (tmflg && alltm)) &&
2081 		    (sysattr_support(file, _PC_SATTR_EXISTS) == 1)) {
2082 			int i;
2083 
2084 			sacnt = attr_count();
2085 			/*
2086 			 * Allocate 'sacnt' size array to hold extended
2087 			 * system attribute name (verbose) or respective
2088 			 * symbol represenation (compact).
2089 			 */
2090 			rep->exttr = xmalloc(sacnt * sizeof (struct attrb),
2091 			    rep);
2092 
2093 			/* initialize boolean attribute list */
2094 			for (i = 0; i < sacnt; i++)
2095 				rep->exttr[i].name = NULL;
2096 			if (get_sysxattr(file, rep) != 0) {
2097 				(void) fprintf(stderr,
2098 				    gettext("ls:Failed to retrieve "
2099 				    "extended system attribute from "
2100 				    "%s\n"), file);
2101 				rep->exttr[0].name = xmalloc(2, rep);
2102 				(void) strlcpy(rep->exttr[0].name, "?", 2);
2103 			}
2104 		}
2105 	}
2106 	return (rep);
2107 }
2108 
2109 /*
2110  * returns pathname of the form dir/file;
2111  * dir and file are null-terminated strings.
2112  */
2113 static char *
2114 makename(char *dir, char *file)
2115 {
2116 	/*
2117 	 * PATH_MAX is the maximum length of a path name.
2118 	 * MAXNAMLEN is the maximum length of any path name component.
2119 	 * Allocate space for both, plus the '/' in the middle
2120 	 * and the null character at the end.
2121 	 * dfile is static as this is returned by makename().
2122 	 */
2123 	static char dfile[PATH_MAX + 1 + MAXNAMLEN + 1];
2124 	char *dp, *fp;
2125 
2126 	dp = dfile;
2127 	fp = dir;
2128 	while (*fp)
2129 		*dp++ = *fp++;
2130 	if (dp > dfile && *(dp - 1) != '/')
2131 		*dp++ = '/';
2132 	fp = file;
2133 	while (*fp)
2134 		*dp++ = *fp++;
2135 	*dp = '\0';
2136 	return (dfile);
2137 }
2138 
2139 
2140 #include <pwd.h>
2141 #include <grp.h>
2142 #include <utmpx.h>
2143 
2144 struct	utmpx utmp;
2145 
2146 #define	NMAX	(sizeof (utmp.ut_name))
2147 #define	SCPYN(a, b)	(void) strncpy(a, b, NMAX)
2148 
2149 
2150 struct cachenode {		/* this struct must be zeroed before using */
2151 	struct cachenode *lesschild;	/* subtree whose entries < val */
2152 	struct cachenode *grtrchild;	/* subtree whose entries > val */
2153 	long val;			/* the uid or gid of this entry */
2154 	int initted;			/* name has been filled in */
2155 	char name[NMAX+1];		/* the string that val maps to */
2156 };
2157 static struct cachenode *names, *groups;
2158 
2159 static struct cachenode *
2160 findincache(struct cachenode **head, long val)
2161 {
2162 	struct cachenode **parent = head;
2163 	struct cachenode *c = *parent;
2164 
2165 	while (c != NULL) {
2166 		if (val == c->val) {
2167 			/* found it */
2168 			return (c);
2169 		} else if (val < c->val) {
2170 			parent = &c->lesschild;
2171 			c = c->lesschild;
2172 		} else {
2173 			parent = &c->grtrchild;
2174 			c = c->grtrchild;
2175 		}
2176 	}
2177 
2178 	/* not in the cache, make a new entry for it */
2179 	c = calloc(1, sizeof (struct cachenode));
2180 	if (c == NULL) {
2181 		perror("ls");
2182 		exit(2);
2183 	}
2184 	*parent = c;
2185 	c->val = val;
2186 	return (c);
2187 }
2188 
2189 /*
2190  * get name from cache, or passwd file for a given uid;
2191  * lastuid is set to uid.
2192  */
2193 static char *
2194 getname(uid_t uid)
2195 {
2196 	struct passwd *pwent;
2197 	struct cachenode *c;
2198 
2199 	if ((uid == lastuid) && lastuname)
2200 		return (lastuname);
2201 
2202 	c = findincache(&names, uid);
2203 	if (c->initted == 0) {
2204 		if ((pwent = getpwuid(uid)) != NULL) {
2205 			SCPYN(&c->name[0], pwent->pw_name);
2206 		} else {
2207 			(void) sprintf(&c->name[0], "%-8u", (int)uid);
2208 		}
2209 		c->initted = 1;
2210 	}
2211 	lastuid = uid;
2212 	lastuname = &c->name[0];
2213 	return (lastuname);
2214 }
2215 
2216 /*
2217  * get name from cache, or group file for a given gid;
2218  * lastgid is set to gid.
2219  */
2220 static char *
2221 getgroup(gid_t gid)
2222 {
2223 	struct group *grent;
2224 	struct cachenode *c;
2225 
2226 	if ((gid == lastgid) && lastgname)
2227 		return (lastgname);
2228 
2229 	c = findincache(&groups, gid);
2230 	if (c->initted == 0) {
2231 		if ((grent = getgrgid(gid)) != NULL) {
2232 			SCPYN(&c->name[0], grent->gr_name);
2233 		} else {
2234 			(void) sprintf(&c->name[0], "%-8u", (int)gid);
2235 		}
2236 		c->initted = 1;
2237 	}
2238 	lastgid = gid;
2239 	lastgname = &c->name[0];
2240 	return (lastgname);
2241 }
2242 
2243 /* return >0 if item pointed by pp2 should appear first */
2244 static int
2245 compar(struct lbuf **pp1, struct lbuf **pp2)
2246 {
2247 	struct lbuf *p1, *p2;
2248 
2249 	p1 = *pp1;
2250 	p2 = *pp2;
2251 	if (dflg == 0) {
2252 /*
2253  * compare two names in ls-command one of which is file
2254  * and the other is a directory;
2255  * this portion is not used for comparing files within
2256  * a directory name of ls-command;
2257  */
2258 		if (p1->lflags&ISARG && p1->ltype == 'd') {
2259 			if (!(p2->lflags&ISARG && p2->ltype == 'd'))
2260 				return (1);
2261 		} else {
2262 			if (p2->lflags&ISARG && p2->ltype == 'd')
2263 				return (-1);
2264 		}
2265 	}
2266 	if (tflg) {
2267 		if (p2->lmtime.tv_sec > p1->lmtime.tv_sec)
2268 			return (rflg);
2269 		else if (p2->lmtime.tv_sec < p1->lmtime.tv_sec)
2270 			return (-rflg);
2271 		/* times are equal to the sec, check nsec */
2272 		if (p2->lmtime.tv_nsec > p1->lmtime.tv_nsec)
2273 			return (rflg);
2274 		else if (p2->lmtime.tv_nsec < p1->lmtime.tv_nsec)
2275 			return (-rflg);
2276 		/* if times are equal, fall through and sort by name */
2277 	} else if (Sflg) {
2278 		/*
2279 		 * The size stored in lsize can be either the
2280 		 * size or the major minor number (in the case of
2281 		 * block and character special devices).  If it's
2282 		 * a major minor number, then the size is considered
2283 		 * to be zero and we want to fall through and sort
2284 		 * by name.  In addition, if the size of p2 is equal
2285 		 * to the size of p1 we want to fall through and
2286 		 * sort by name.
2287 		 */
2288 		off_t	p1size = (p1->ltype == 'b') ||
2289 		    (p1->ltype == 'c') ? 0 : p1->lsize;
2290 		off_t	p2size = (p2->ltype == 'b') ||
2291 		    (p2->ltype == 'c') ? 0 : p2->lsize;
2292 		if (p2size > p1size) {
2293 			return (rflg);
2294 		} else if (p2size < p1size) {
2295 			return (-rflg);
2296 		}
2297 		/* Sizes are equal, fall through and sort by name. */
2298 	}
2299 	return (rflg * strcoll(
2300 	    p1->lflags & ISARG ? p1->ln.namep : p1->ln.lname,
2301 	    p2->lflags&ISARG ? p2->ln.namep : p2->ln.lname));
2302 }
2303 
2304 static void
2305 pprintf(char *s1, char *s2)
2306 {
2307 	csi_pprintf((unsigned char *)s1);
2308 	csi_pprintf((unsigned char *)s2);
2309 }
2310 
2311 static void
2312 csi_pprintf(unsigned char *s)
2313 {
2314 	unsigned char *cp;
2315 	char	c;
2316 	int	i;
2317 	int	c_len;
2318 	int	p_col;
2319 	wchar_t	pcode;
2320 
2321 	if (!qflg && !bflg) {
2322 		for (cp = s; *cp != '\0'; cp++) {
2323 			(void) putchar(*cp);
2324 			curcol++;
2325 		}
2326 		return;
2327 	}
2328 
2329 	for (cp = s; *cp; ) {
2330 		if (isascii(c = *cp)) {
2331 			if (!isprint(c)) {
2332 				if (qflg) {
2333 					c = '?';
2334 				} else {
2335 					curcol += 3;
2336 					(void) putc('\\', stdout);
2337 					c = '0' + ((*cp >> 6) & 07);
2338 					(void) putc(c, stdout);
2339 					c = '0' + ((*cp >> 3) & 07);
2340 					(void) putc(c, stdout);
2341 					c = '0' + (*cp & 07);
2342 				}
2343 			}
2344 			curcol++;
2345 			cp++;
2346 			(void) putc(c, stdout);
2347 			continue;
2348 		}
2349 
2350 		if ((c_len = mbtowc(&pcode, (char *)cp, MB_LEN_MAX)) <= 0) {
2351 			c_len = 1;
2352 			goto not_print;
2353 		}
2354 
2355 		if ((p_col = wcwidth(pcode)) > 0) {
2356 			(void) putwchar(pcode);
2357 			cp += c_len;
2358 			curcol += p_col;
2359 			continue;
2360 		}
2361 
2362 not_print:
2363 		for (i = 0; i < c_len; i++) {
2364 			if (qflg) {
2365 				c = '?';
2366 			} else {
2367 				curcol += 3;
2368 				(void) putc('\\', stdout);
2369 				c = '0' + ((*cp >> 6) & 07);
2370 				(void) putc(c, stdout);
2371 				c = '0' + ((*cp >> 3) & 07);
2372 				(void) putc(c, stdout);
2373 				c = '0' + (*cp & 07);
2374 			}
2375 			curcol++;
2376 			(void) putc(c, stdout);
2377 			cp++;
2378 		}
2379 	}
2380 }
2381 
2382 static int
2383 strcol(unsigned char *s1)
2384 {
2385 	int	w;
2386 	int	w_col;
2387 	int	len;
2388 	wchar_t	wc;
2389 
2390 	w = 0;
2391 	while (*s1) {
2392 		if (isascii(*s1)) {
2393 			w++;
2394 			s1++;
2395 			continue;
2396 		}
2397 
2398 		if ((len = mbtowc(&wc, (char *)s1, MB_LEN_MAX)) <= 0) {
2399 			w++;
2400 			s1++;
2401 			continue;
2402 		}
2403 
2404 		if ((w_col = wcwidth(wc)) < 0)
2405 			w_col = len;
2406 		s1 += len;
2407 		w += w_col;
2408 	}
2409 	return (w);
2410 }
2411 
2412 /*
2413  * Convert an unsigned long long to a string representation and place the
2414  * result in the caller-supplied buffer.
2415  *
2416  * The number provided is a size in bytes.  The number is first
2417  * converted to an integral multiple of 'scale' bytes.  This new
2418  * number is then scaled down until it is small enough to be in a good
2419  * human readable format, i.e.  in the range 0 thru scale-1.  If the
2420  * number used to derive the final number is not a multiple of scale, and
2421  * the final number has only a single significant digit, we compute
2422  * tenths of units to provide a second significant digit.
2423  *
2424  * The value "(unsigned long long)-1" is a special case and is always
2425  * converted to "-1".
2426  *
2427  * A pointer to the caller-supplied buffer is returned.
2428  */
2429 static char *
2430 number_to_scaled_string(
2431 			numbuf_t buf,		/* put the result here */
2432 			unsigned long long number, /* convert this number */
2433 			long scale)
2434 {
2435 	unsigned long long save;
2436 	/* Measurement: kilo, mega, giga, tera, peta, exa */
2437 	char *uom = "KMGTPE";
2438 
2439 	if ((long long)number == (long long)-1) {
2440 		(void) strlcpy(buf, "-1", sizeof (numbuf_t));
2441 		return (buf);
2442 	}
2443 
2444 	save = number;
2445 	number = number / scale;
2446 
2447 	/*
2448 	 * Now we have number as a count of scale units.
2449 	 * If no further scaling is necessary, we round up as appropriate.
2450 	 *
2451 	 * The largest value number could have had entering the routine is
2452 	 * 16 Exabytes, so running off the end of the uom array should
2453 	 * never happen.  We check for that, though, as a guard against
2454 	 * a breakdown elsewhere in the algorithm.
2455 	 */
2456 	if (number < (unsigned long long)scale) {
2457 		if ((save % scale) >= (unsigned long long)(scale / 2)) {
2458 			if (++number == (unsigned long long)scale) {
2459 				uom++;
2460 				number = 1;
2461 			}
2462 		}
2463 	} else {
2464 		while ((number >= (unsigned long long)scale) && (*uom != 'E')) {
2465 			uom++; /* next unit of measurement */
2466 			save = number;
2467 			/*
2468 			 * If we're over half way to the next unit of
2469 			 * 'scale' bytes (which means we should round
2470 			 * up), then adding half of 'scale' prior to
2471 			 * the division will push us into that next
2472 			 * unit of scale when we perform the division
2473 			 */
2474 			number = (number + (scale / 2)) / scale;
2475 		}
2476 	}
2477 
2478 	/* check if we should output a decimal place after the point */
2479 	if ((save / scale) < 10) {
2480 		/* snprintf() will round for us */
2481 		float fnum = (float)save / scale;
2482 		(void) snprintf(buf, sizeof (numbuf_t), "%2.1f%c",
2483 		    fnum, *uom);
2484 	} else {
2485 		(void) snprintf(buf, sizeof (numbuf_t), "%4llu%c",
2486 		    number, *uom);
2487 	}
2488 	return (buf);
2489 }
2490 
2491 /* Get extended system attributes and set the display */
2492 
2493 int
2494 get_sysxattr(char *fname, struct lbuf *rep)
2495 {
2496 	boolean_t	value;
2497 	data_type_t	type;
2498 	int		error;
2499 	char		*name;
2500 	int		i;
2501 
2502 	if ((error = getattrat(AT_FDCWD, XATTR_VIEW_READWRITE, fname,
2503 	    &response)) != 0) {
2504 		perror("ls:getattrat");
2505 		return (error);
2506 	}
2507 
2508 	/*
2509 	 * Allocate 'sacnt' size array to hold extended timestamp
2510 	 * system attributes and initialize the array.
2511 	 */
2512 	rep->extm = xmalloc(sacnt * sizeof (struct attrtm), rep);
2513 	for (i = 0; i < sacnt; i++) {
2514 		rep->extm[i].stm = 0;
2515 		rep->extm[i].nstm = 0;
2516 		rep->extm[i].name = NULL;
2517 	}
2518 	while ((pair = nvlist_next_nvpair(response, pair)) != NULL) {
2519 		name = nvpair_name(pair);
2520 		type = nvpair_type(pair);
2521 		if (type == DATA_TYPE_BOOLEAN_VALUE) {
2522 			error = nvpair_value_boolean_value(pair, &value);
2523 			if (error) {
2524 				(void) fprintf(stderr,
2525 				    gettext("nvpair_value_boolean_value "
2526 				    "failed: error = %d\n"), error);
2527 				continue;
2528 			}
2529 			if (name != NULL)
2530 				set_sysattrb_display(name, value, rep);
2531 			continue;
2532 		} else if (type == DATA_TYPE_UINT64_ARRAY) {
2533 			if (name != NULL)
2534 				set_sysattrtm_display(name, rep);
2535 			continue;
2536 		}
2537 	}
2538 	nvlist_free(response);
2539 	return (0);
2540 }
2541 
2542 /* Set extended system attribute boolean display */
2543 
2544 void
2545 set_sysattrb_display(char *name, boolean_t val, struct lbuf *rep)
2546 {
2547 	f_attr_t	fattr;
2548 	const char	*opt;
2549 	size_t		len;
2550 
2551 	fattr = name_to_attr(name);
2552 	if (fattr != F_ATTR_INVAL && fattr < sacnt) {
2553 		if (vopt) {
2554 			len = strlen(name);
2555 			if (val) {
2556 				rep->exttr[fattr].name = xmalloc(len + 1, rep);
2557 				(void) strlcpy(rep->exttr[fattr].name, name,
2558 				    len + 1);
2559 			} else {
2560 				rep->exttr[fattr].name = xmalloc(len + 3, rep);
2561 				(void) snprintf(rep->exttr[fattr].name, len + 3,
2562 				    "no%s", name);
2563 			}
2564 		} else {
2565 			opt = attr_to_option(fattr);
2566 			if (opt != NULL) {
2567 				len = strlen(opt);
2568 				rep->exttr[fattr].name = xmalloc(len + 1, rep);
2569 				if (val)
2570 					(void) strlcpy(rep->exttr[fattr].name,
2571 					    opt, len + 1);
2572 				else
2573 					(void) strlcpy(rep->exttr[fattr].name,
2574 					    "-", len + 1);
2575 			}
2576 		}
2577 	}
2578 }
2579 
2580 /* Set extended system attribute timestamp display */
2581 
2582 void
2583 set_sysattrtm_display(char *name, struct lbuf *rep)
2584 {
2585 	uint_t		nelem;
2586 	uint64_t	*value;
2587 	int		i;
2588 	size_t		len;
2589 
2590 	if (nvpair_value_uint64_array(pair, &value, &nelem) == 0) {
2591 		if (*value != NULL) {
2592 			len = strlen(name);
2593 			i = 0;
2594 			while (rep->extm[i].stm != 0 && i < sacnt)
2595 				i++;
2596 			rep->extm[i].stm = value[0];
2597 			rep->extm[i].nstm = value[1];
2598 			rep->extm[i].name = xmalloc(len + 1, rep);
2599 			(void) strlcpy(rep->extm[i].name, name, len + 1);
2600 		}
2601 	}
2602 }
2603 
2604 void
2605 format_time(time_t sec, time_t nsec)
2606 {
2607 	const char *fstr = time_fmt_new;
2608 	char fmt_buf[FMTSIZE];
2609 
2610 	if (Eflg) {
2611 		(void) snprintf(fmt_buf, FMTSIZE, fstr, nsec);
2612 		(void) strftime(time_buf, sizeof (time_buf), fmt_buf,
2613 		    localtime(&sec));
2614 		return;
2615 	}
2616 
2617 	if (sec < year || sec > now)
2618 		fstr = time_fmt_old;
2619 
2620 	/* if a custom time was specified, shouldn't be localized */
2621 	(void) strftime(time_buf, sizeof (time_buf),
2622 	    (time_custom == 0) ? dcgettext(NULL, fstr, LC_TIME) : fstr,
2623 	    localtime(&sec));
2624 }
2625 
2626 void
2627 format_attrtime(struct lbuf *p)
2628 {
2629 	int tmattr = 0;
2630 	int i;
2631 
2632 	if (p->extm != NULL) {
2633 		for (i = 0; i < sacnt; i++) {
2634 			if (p->extm[i].name != NULL) {
2635 				tmattr = 1;
2636 				break;
2637 			}
2638 		}
2639 	}
2640 
2641 	if (tmattr) {
2642 		const char *old_save = time_fmt_old;
2643 		const char *new_save = time_fmt_new;
2644 
2645 		/* Eflg always sets format to FORMAT_ISO_FULL */
2646 		if (!Eflg && !time_custom) {
2647 			time_fmt_old = FORMAT_OLD;
2648 			time_fmt_new = FORMAT_NEW;
2649 		}
2650 
2651 		format_time((time_t)p->extm[i].stm, (time_t)p->extm[i].nstm);
2652 
2653 		time_fmt_old = old_save;
2654 		time_fmt_new = new_save;
2655 	}
2656 }
2657 
2658 void
2659 print_time(struct lbuf *p)
2660 {
2661 	const char *old_save = time_fmt_old;
2662 	const char *new_save = time_fmt_new;
2663 
2664 	int i = 0;
2665 
2666 	if (!Eflg) {
2667 		time_fmt_old = FORMAT_LONG;
2668 		time_fmt_new = FORMAT_LONG;
2669 	}
2670 
2671 	new_line();
2672 	format_time(p->lat.tv_sec, p->lat.tv_nsec);
2673 	(void) printf("         timestamp: atime        %s\n", time_buf);
2674 	format_time(p->lct.tv_sec, p->lct.tv_nsec);
2675 	(void) printf("         timestamp: ctime        %s\n", time_buf);
2676 	format_time(p->lmt.tv_sec, p->lmt.tv_nsec);
2677 	(void) printf("         timestamp: mtime        %s\n", time_buf);
2678 	if (p->extm != NULL) {
2679 		while (p->extm[i].nstm != 0 && i < sacnt) {
2680 			format_time(p->extm[i].stm, p->extm[i].nstm);
2681 			if (p->extm[i].name != NULL) {
2682 				(void) printf("         timestamp:"
2683 				    " %s        %s\n",
2684 				    p->extm[i].name, time_buf);
2685 			}
2686 			i++;
2687 		}
2688 	}
2689 
2690 	time_fmt_old = old_save;
2691 	time_fmt_new = new_save;
2692 }
2693 
2694 /*
2695  * Check if color definition applies to entry, returns 1 if yes, 0 if no
2696  */
2697 static int
2698 color_match(const char *fname, mode_t mode, ls_color_t *color)
2699 {
2700 	switch (color->ftype) {
2701 	case LS_PAT:
2702 	{
2703 		size_t	fname_len, sfx_len;
2704 
2705 		fname_len = strlen(fname);
2706 		sfx_len = strlen(color->sfx);
2707 		if (sfx_len > fname_len)
2708 			return (0);
2709 
2710 		if (strcmp(color->sfx, fname + fname_len - sfx_len) == 0)
2711 			return (1);
2712 		else
2713 			return (0);
2714 	}
2715 
2716 	case LS_NORMAL:
2717 		return (1);
2718 
2719 	case LS_FILE:
2720 		return (S_ISREG(mode));
2721 
2722 	case LS_DIR:
2723 		return (S_ISDIR(mode));
2724 
2725 	case LS_LINK:
2726 		return (S_ISLNK(mode));
2727 
2728 	case LS_FIFO:
2729 		return (S_ISFIFO(mode));
2730 
2731 	case LS_SOCK:
2732 		return (S_ISSOCK(mode));
2733 
2734 	case LS_DOOR:
2735 		return (S_ISDOOR(mode));
2736 
2737 	case LS_BLK:
2738 		return (S_ISBLK(mode));
2739 
2740 	case LS_CHR:
2741 		return (S_ISCHR(mode));
2742 
2743 	case LS_PORT:
2744 		return (S_ISPORT(mode));
2745 
2746 	case LS_ORPHAN:
2747 		/* this is tested for by gstat */
2748 		return (0);
2749 
2750 	case LS_SETUID:
2751 		return (!S_ISLNK(mode) && (mode & S_ISUID));
2752 
2753 	case LS_SETGID:
2754 		return (!S_ISLNK(mode) && (mode & S_ISGID));
2755 
2756 	case LS_STICKY_OTHER_WRITABLE:
2757 		return (!S_ISLNK(mode) && (mode & (S_IWOTH|S_ISVTX)));
2758 
2759 	case LS_OTHER_WRITABLE:
2760 		return (!S_ISLNK(mode) && (mode & S_IWOTH));
2761 
2762 	case LS_STICKY:
2763 		return (!S_ISLNK(mode) && (mode & S_ISVTX));
2764 
2765 	case LS_EXEC:
2766 		return (!S_ISLNK(mode) && (mode & (S_IXUSR|S_IXGRP|S_IXOTH)));
2767 	}
2768 
2769 	return (0);
2770 }
2771 
2772 static void
2773 dump_color(ls_color_t *c)
2774 {
2775 	if (c == NULL)
2776 		return;
2777 
2778 	(void) printf("\n\ttype: ");
2779 	switch (c->ftype) {
2780 	case LS_NORMAL:
2781 		(void) printf("LS_NORMAL");
2782 		break;
2783 	case LS_FILE:
2784 		(void) printf("LS_FILE");
2785 		break;
2786 	case LS_EXEC:
2787 		(void) printf("LS_EXEC");
2788 		break;
2789 	case LS_DIR:
2790 		(void) printf("LS_DIR");
2791 		break;
2792 	case LS_LINK:
2793 		(void) printf("LS_LINK");
2794 		break;
2795 
2796 	case LS_FIFO:
2797 		(void) printf("LS_FIFO");
2798 		break;
2799 
2800 	case LS_SOCK:
2801 		(void) printf("LS_SOCK");
2802 		break;
2803 
2804 	case LS_DOOR:
2805 		(void) printf("LS_DOOR");
2806 		break;
2807 
2808 	case LS_BLK:
2809 		(void) printf("LS_BLK");
2810 		break;
2811 
2812 	case LS_CHR:
2813 		(void) printf("LS_CHR");
2814 		break;
2815 
2816 	case LS_PORT:
2817 		(void) printf("LS_PORT");
2818 		break;
2819 
2820 	case LS_STICKY:
2821 		(void) printf("LS_STICKY");
2822 		break;
2823 
2824 	case LS_ORPHAN:
2825 		(void) printf("LS_ORPHAN");
2826 		break;
2827 
2828 	case LS_SETGID:
2829 		(void) printf("LS_SETGID");
2830 		break;
2831 
2832 	case LS_SETUID:
2833 		(void) printf("LS_SETUID");
2834 		break;
2835 
2836 	case LS_OTHER_WRITABLE:
2837 		(void) printf("LS_OTHER_WRITABLE");
2838 		break;
2839 
2840 	case LS_STICKY_OTHER_WRITABLE:
2841 		(void) printf("LS_STICKY_OTHER_WRITABLE");
2842 		break;
2843 
2844 	case LS_PAT:
2845 		(void) printf("LS_PAT\n");
2846 		(void) printf("\tpattern: %s", c->sfx);
2847 		break;
2848 	}
2849 	(void) printf("\n");
2850 	(void) printf("\tattr: %d\n", c->attr);
2851 	(void) printf("\tfg: %d\n", c->fg);
2852 	(void) printf("\tbg: %d\n", c->bg);
2853 	(void) printf("\t");
2854 }
2855 
2856 static ls_color_t *
2857 ls_color_find(const char *fname, mode_t mode)
2858 {
2859 	int i;
2860 
2861 	/*
2862 	 * Colors are sorted from most general lsc_colors[0] to most specific
2863 	 * lsc_colors[lsc_ncolors - 1] by ls_color_init().  Start search with
2864 	 * most specific color rule and work towards most general.
2865 	 */
2866 	for (i = lsc_ncolors - 1; i >= 0; --i)
2867 		if (color_match(fname, mode, &lsc_colors[i]))
2868 			return (&lsc_colors[i]);
2869 
2870 	return (NULL);
2871 }
2872 
2873 static void
2874 ls_tprint(char *str, long int p1, long int p2, long int p3, long int p4,
2875     long int p5, long int p6, long int p7, long int p8, long int p9)
2876 {
2877 	char *s;
2878 
2879 	if (str == NULL)
2880 		return;
2881 
2882 	s = tparm(str, p1, p2, p3, p4, p5, p6, p7, p8, p9);
2883 
2884 	if (s != NULL)
2885 		(void) putp(s);
2886 }
2887 
2888 static void
2889 ls_start_color(ls_color_t *c)
2890 {
2891 	if (c == NULL)
2892 		return;
2893 
2894 	if (lsc_debug)
2895 		lsc_match = c;
2896 
2897 	if (c->attr & LSA_BOLD)
2898 		ls_tprint(lsc_bold, 0, 0, 0, 0, 0, 0, 0, 0, 0);
2899 	if (c->attr & LSA_UNDERSCORE)
2900 		ls_tprint(lsc_underline, 0, 0, 0, 0, 0, 0, 0, 0, 0);
2901 	if (c->attr & LSA_BLINK)
2902 		ls_tprint(lsc_blink, 0, 0, 0, 0, 0, 0, 0, 0, 0);
2903 	if (c->attr & LSA_REVERSE)
2904 		ls_tprint(lsc_reverse, 0, 0, 0, 0, 0, 0, 0, 0, 0);
2905 	if (c->attr & LSA_CONCEALED)
2906 		ls_tprint(lsc_concealed, 0, 0, 0, 0, 0, 0, 0, 0, 0);
2907 	if (c->attr == LSA_NONE)
2908 		ls_tprint(lsc_none, 0, 0, 0, 0, 0, 0, 0, 0, 0);
2909 
2910 	if (c->fg != -1)
2911 		ls_tprint(lsc_setfg, c->fg, 0, 0, 0, 0, 0, 0, 0, 0);
2912 	if (c->bg != -1)
2913 		ls_tprint(lsc_setbg, c->bg, 0, 0, 0, 0, 0, 0, 0, 0);
2914 }
2915 
2916 static void
2917 ls_end_color()
2918 {
2919 	ls_tprint(lsc_none, 0, 0, 0, 0, 0, 0, 0, 0, 0);
2920 	if (lsc_debug)
2921 		dump_color(lsc_match);
2922 }
2923 
2924 static void
2925 new_color_entry(char *colorstr)
2926 {
2927 	static const struct {
2928 		const char	*s;
2929 		ls_cftype_t	stype;
2930 	} type_map[] = {
2931 		{ "no", LS_NORMAL },
2932 		{ "fi", LS_FILE },
2933 		{ "di", LS_DIR },
2934 		{ "ln", LS_LINK },
2935 		{ "pi", LS_FIFO },
2936 		{ "so", LS_SOCK },
2937 		{ "do", LS_DOOR },
2938 		{ "bd", LS_BLK },
2939 		{ "cd", LS_CHR },
2940 		{ "or", LS_ORPHAN },
2941 		{ "su", LS_SETUID },
2942 		{ "sg", LS_SETGID },
2943 		{ "tw", LS_STICKY_OTHER_WRITABLE },
2944 		{ "ow", LS_OTHER_WRITABLE },
2945 		{ "st", LS_STICKY },
2946 		{ "ex", LS_EXEC },
2947 		{ "po", LS_PORT },
2948 		{ NULL, LS_NORMAL }
2949 	};
2950 
2951 	char		*p, *lasts;
2952 	int		i;
2953 	int		color, attr;
2954 
2955 	p = strtok_r(colorstr, "=", &lasts);
2956 	if (p == NULL) {
2957 		colorflg = 0;
2958 		return;
2959 	}
2960 
2961 	if (p[0] == '*') {
2962 		lsc_colors[lsc_ncolors].ftype = LS_PAT;
2963 		/* don't include the * in the suffix */
2964 		if ((lsc_colors[lsc_ncolors].sfx = strdup(p + 1)) == NULL) {
2965 			colorflg = 0;
2966 			return;
2967 		}
2968 	} else {
2969 		lsc_colors[lsc_ncolors].sfx = NULL;
2970 
2971 		for (i = 0; type_map[i].s != NULL; ++i) {
2972 			if (strncmp(type_map[i].s, p, 2) == 0)
2973 				break;
2974 		}
2975 
2976 		/* ignore unknown file types */
2977 		if (type_map[i].s == NULL)
2978 			return;
2979 
2980 		lsc_colors[lsc_ncolors].ftype = type_map[i].stype;
2981 	}
2982 
2983 	attr = LSA_NONE;
2984 	lsc_colors[lsc_ncolors].fg = -1;
2985 	lsc_colors[lsc_ncolors].bg = -1;
2986 	for (p = strtok_r(NULL, ";", &lasts); p != NULL;
2987 	    p = strtok_r(NULL, ";", &lasts)) {
2988 		color = strtol(p, NULL, 10);
2989 
2990 		if (color < 10) {
2991 			switch (color) {
2992 			case 0:
2993 				attr = LSA_NONE;
2994 				continue;
2995 			case 1:
2996 				attr |= LSA_BOLD;
2997 				continue;
2998 			case 4:
2999 				attr |= LSA_UNDERSCORE;
3000 				continue;
3001 			case 5:
3002 				attr |= LSA_BLINK;
3003 				continue;
3004 			case 7:
3005 				attr |= LSA_REVERSE;
3006 				continue;
3007 			case 8:
3008 				attr |= LSA_CONCEALED;
3009 				continue;
3010 			default:
3011 				continue;
3012 			}
3013 		}
3014 
3015 		if (color < 40)
3016 			lsc_colors[lsc_ncolors].fg = color - 30;
3017 		else
3018 			lsc_colors[lsc_ncolors].bg = color - 40;
3019 	}
3020 
3021 	lsc_colors[lsc_ncolors].attr = attr;
3022 	++lsc_ncolors;
3023 }
3024 
3025 static int
3026 ls_color_compare(const void *p1, const void *p2)
3027 {
3028 	const ls_color_t *c1 = (const ls_color_t *)p1;
3029 	const ls_color_t *c2 = (const ls_color_t *)p2;
3030 
3031 	int ret = c1->ftype - c2->ftype;
3032 
3033 	if (ret != 0)
3034 		return (ret);
3035 
3036 	if (c1->ftype != LS_PAT)
3037 		return (ret);
3038 
3039 	return (strcmp(c1->sfx, c2->sfx));
3040 }
3041 
3042 static void
3043 ls_color_init()
3044 {
3045 	static char *default_colorstr = "no=00:fi=00:di=01;34:ln=01;36:po=01;35"
3046 	    ":pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01"
3047 	    ":su=37;41:sg=30;43:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31"
3048 	    ":*.tgz=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.zip=01;31"
3049 	    ":*.z=01;31:*.Z=01;31:*.gz=01;31:*.bz2=01;31:*.deb=01;31"
3050 	    ":*.rpm=01;31:*.jar=01;31:*.jpg=01;35:*.jpeg=01;35:*.gif=01;35"
3051 	    ":*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35"
3052 	    ":*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35"
3053 	    ":*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.avi=01;35:*.fli=01;35"
3054 	    ":*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.flac=01;35"
3055 	    ":*.mp3=01;35:*.mpc=01;35:*.ogg=01;35:*.wav=01;35";
3056 
3057 	char    *colorstr;
3058 	char    *p, *lasts;
3059 	size_t  color_sz;
3060 	int	termret;
3061 	int	i;
3062 
3063 	(void) setupterm(NULL, 1, &termret);
3064 	if (termret != 1)
3065 		return;
3066 
3067 	if ((colorstr = getenv("LS_COLORS")) == NULL)
3068 		colorstr = default_colorstr;
3069 
3070 	/*
3071 	 * Determine the size of lsc_colors.  color_sz can be > lsc_ncolors
3072 	 * if there are invalid entries passed in the string (they are ignored)
3073 	 */
3074 	color_sz = 1;
3075 	for (p = strchr(colorstr, ':'); p != NULL && *p != '\0';
3076 	    p = strchr(++p, ':'))
3077 		++color_sz;
3078 
3079 	lsc_colors = calloc(color_sz, sizeof (ls_color_t));
3080 	if (lsc_colors == NULL) {
3081 		free(colorstr);
3082 		return;
3083 	}
3084 
3085 	for (p = strtok_r(colorstr, ":", &lasts);
3086 	    p != NULL && lsc_ncolors < color_sz;
3087 	    p = strtok_r(NULL, ":", &lasts))
3088 		new_color_entry(p);
3089 
3090 	qsort((void *)lsc_colors, lsc_ncolors, sizeof (ls_color_t),
3091 	    ls_color_compare);
3092 
3093 	for (i = 0; i < lsc_ncolors; ++i)
3094 		if (lsc_colors[i].ftype == LS_ORPHAN) {
3095 			lsc_orphan = &lsc_colors[i];
3096 			break;
3097 		}
3098 
3099 	if ((lsc_bold = tigetstr("bold")) == (char *)-1)
3100 		lsc_bold = NULL;
3101 
3102 	if ((lsc_underline = tigetstr("smul")) == (char *)-1)
3103 		lsc_underline = NULL;
3104 
3105 	if ((lsc_blink = tigetstr("blink")) == (char *)-1)
3106 		lsc_blink = NULL;
3107 
3108 	if ((lsc_reverse = tigetstr("rev")) == (char *)-1)
3109 		lsc_reverse = NULL;
3110 
3111 	if ((lsc_concealed = tigetstr("prot")) == (char *)-1)
3112 		lsc_concealed = NULL;
3113 
3114 	if ((lsc_none = tigetstr("sgr0")) == (char *)-1)
3115 		lsc_none = NULL;
3116 
3117 	if ((lsc_setfg = tigetstr("setaf")) == (char *)-1)
3118 		lsc_setfg = NULL;
3119 
3120 	if ((lsc_setbg = tigetstr("setab")) == (char *)-1)
3121 		lsc_setbg = NULL;
3122 
3123 	if (getenv("_LS_COLOR_DEBUG") != NULL) {
3124 		int i;
3125 
3126 		lsc_debug = 1;
3127 		for (i = 0; i < lsc_ncolors; ++i)
3128 			dump_color(&lsc_colors[i]);
3129 	}
3130 }
3131 
3132 /* Free extended system attribute lists */
3133 
3134 void
3135 free_sysattr(struct lbuf *p)
3136 {
3137 	int i;
3138 
3139 	if (p->exttr != NULL) {
3140 		for (i = 0; i < sacnt; i++) {
3141 			if (p->exttr[i].name != NULL)
3142 				free(p->exttr[i].name);
3143 		}
3144 		free(p->exttr);
3145 	}
3146 	if (p->extm != NULL) {
3147 		for (i = 0; i < sacnt; i++) {
3148 			if (p->extm[i].name != NULL)
3149 				free(p->extm[i].name);
3150 		}
3151 		free(p->extm);
3152 	}
3153 }
3154 
3155 /* Allocate extended system attribute list */
3156 
3157 void *
3158 xmalloc(size_t size, struct lbuf *p)
3159 {
3160 	if ((p = malloc(size)) == NULL) {
3161 		perror("ls");
3162 		free_sysattr(p);
3163 		nvlist_free(response);
3164 		exit(2);
3165 	}
3166 	return (p);
3167 }
3168