xref: /titanic_51/usr/src/cmd/ls/ls.c (revision 6bbe05905a1c10a2703f95fb4912eb14b87f6670)
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 2009 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*
28  * Copyright 2009 Jason King.  All rights reserved.
29  * Use is subject to license terms.
30  */
31 
32 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
33 /*	  All Rights Reserved  	*/
34 
35 /*	Copyright (c) 1987, 1988 Microsoft Corporation	*/
36 /*	  All Rights Reserved	*/
37 
38 /*
39  * List files or directories
40  */
41 
42 #include <sys/param.h>
43 #include <sys/types.h>
44 #include <sys/mkdev.h>
45 #include <sys/stat.h>
46 #include <sys/acl.h>
47 
48 #include <wchar.h>
49 #include <stdio.h>
50 #include <ctype.h>
51 #include <dirent.h>
52 #include <string.h>
53 #include <locale.h>
54 #include <curses.h>
55 #include <term.h>
56 #include <termios.h>
57 #include <stdlib.h>
58 #include <widec.h>
59 #include <locale.h>
60 #include <wctype.h>
61 #include <pwd.h>
62 #include <grp.h>
63 #include <limits.h>
64 #include <fcntl.h>
65 #include <unistd.h>
66 #include <libgen.h>
67 #include <errno.h>
68 #include <aclutils.h>
69 #include <libnvpair.h>
70 #include <libcmdutils.h>
71 #include <attr.h>
72 #include <getopt.h>
73 #include <inttypes.h>
74 
75 #ifndef STANDALONE
76 #define	TERMINFO
77 #endif
78 
79 /*
80  * -DNOTERMINFO can be defined on the cc command line to prevent
81  * the use of terminfo.  This should be done on systems not having
82  * the terminfo feature(pre 6.0 systems ?).
83  * As a result, columnar listings assume 80 columns for output,
84  * unless told otherwise via the COLUMNS environment variable.
85  */
86 #ifdef NOTERMINFO
87 #undef TERMINFO
88 #endif
89 
90 #include <term.h>
91 
92 #define	BFSIZE	16
93 /* this bit equals 1 in lflags of structure lbuf if *namep is to be used */
94 #define	ISARG	0100000
95 
96 /*
97  * this flag has been added to manipulate the display of S instead of 'l' when
98  * the file is not a regular file and when group execution bit is off
99  */
100 #define	LS_NOTREG	010000
101 
102 
103 /*
104  * Date and time formats
105  *
106  * b --- abbreviated month name
107  * e --- day number
108  * Y --- year in the form ccyy
109  * H --- hour(24-hour version)
110  * M --- minute
111  * F --- yyyy-mm-dd
112  * T --- hh:mm:ss
113  * z --- time zone as hours displacement from UTC
114  * note that %F and %z are from the ISO C99 standard and are
115  * not present in older C libraries
116  */
117 #define	FORMAT_OLD	" %b %e  %Y "
118 #define	FORMAT_NEW	" %b %e %H:%M "
119 #define	FORMAT_LONG	" %b %e %T %Y "
120 #define	FORMAT_ISO_FULL	" %%F %%T.%.09ld %%z "
121 #define	FORMAT_ISO_LONG	" %F %R "
122 #define	FORMAT_ISO_NEW	" %m-%d %H:%M "
123 #define	FORMAT_ISO_OLD	" %F "
124 
125 #undef BUFSIZ
126 #define	BUFSIZ 4096
127 #define	NUMBER_WIDTH 40
128 #define	FMTSIZE 50
129 
130 struct ditem {
131 	dev_t	dev;			/* directory items device number */
132 	ino_t	ino;			/* directory items inode number */
133 	struct ditem *parent;		/* dir items ptr to its parent's info */
134 };
135 /* Holds boolean extended system attributes */
136 struct attrb {
137 	char		*name;
138 };
139 /* Holds timestamp extended system attributes */
140 struct attrtm {
141 	char		*name;
142 	uint64_t	stm;
143 	uint64_t	nstm;
144 };
145 
146 #define	LSA_NONE	(0)
147 #define	LSA_BOLD	(1L << 0)
148 #define	LSA_UNDERSCORE	(1L << 1)
149 #define	LSA_BLINK	(1L << 2)
150 #define	LSA_REVERSE	(1L << 3)
151 #define	LSA_CONCEALED	(1L << 4)
152 
153 /* these should be ordered most general to most specific */
154 typedef enum LS_CFTYPE {
155 	LS_NORMAL,
156 	LS_FILE,
157 	LS_EXEC,
158 	LS_DIR,
159 	LS_LINK,
160 	LS_FIFO,
161 	LS_SOCK,
162 	LS_DOOR,
163 	LS_BLK,
164 	LS_CHR,
165 	LS_PORT,
166 	LS_STICKY,
167 	LS_ORPHAN,
168 	LS_SETGID,
169 	LS_SETUID,
170 	LS_OTHER_WRITABLE,
171 	LS_STICKY_OTHER_WRITABLE,
172 	LS_PAT
173 } ls_cftype_t;
174 
175 typedef struct {
176 	char		*sfx;
177 	ls_cftype_t	ftype;
178 	int		attr;
179 	int		fg;
180 	int		bg;
181 } ls_color_t;
182 
183 struct	lbuf	{
184 	union	{
185 		char	lname[MAXNAMLEN]; /* used for filename in a directory */
186 		char	*namep;		/* for name in ls-command; */
187 	} ln;
188 	char	ltype;		/* filetype */
189 	ino_t	lnum;		/* inode number of file */
190 	mode_t	lflags; 	/* 0777 bits used as r,w,x permissions */
191 	nlink_t	lnl;		/* number of links to file */
192 	uid_t	luid;
193 	gid_t	lgid;
194 	off_t	lsize;		/* filesize or major/minor dev numbers */
195 	blkcnt_t	lblocks;	/* number of file blocks */
196 	timestruc_t	lmtime;
197 	timestruc_t	lat;
198 	timestruc_t	lct;
199 	timestruc_t	lmt;
200 	char	*flinkto;	/* symbolic link contents */
201 	char 	acl;		/* indicate there are additional acl entries */
202 	int	cycle;		/* cycle detected flag */
203 	struct ditem *ancinfo;	/* maintains ancestor info */
204 	acl_t *aclp;		/* ACL if present */
205 	struct attrb *exttr;	/* boolean extended system attributes */
206 	struct attrtm *extm;	/* timestamp extended system attributes */
207 	ls_color_t	*color;	/* color for entry */
208 	ls_color_t	*link_color;	/* color for symlink */
209 };
210 
211 struct dchain {
212 	char *dc_name;		/* path name */
213 	int cycle_detected;	/* cycle detected visiting this directory */
214 	struct ditem *myancinfo;	/* this directory's ancestry info */
215 	struct dchain *dc_next;	/* next directory in the chain */
216 };
217 
218 /*
219  * A numbuf_t is used when converting a number to a string representation
220  */
221 typedef char numbuf_t[NUMBER_WIDTH];
222 
223 static struct dchain *dfirst;	/* start of the dir chain */
224 static struct dchain *cdfirst;	/* start of the current dir chain */
225 static struct dchain *dtemp;	/* temporary - used for linking */
226 static char *curdir;		/* the current directory */
227 
228 static int	first = 1;	/* true if first line is not yet printed */
229 static int	nfiles = 0;	/* number of flist entries in current use */
230 static int	nargs = 0;	/* number of flist entries used for arguments */
231 static int	maxfils = 0;	/* number of flist/lbuf entries allocated */
232 static int	maxn = 0;	/* number of flist entries with lbufs asigned */
233 static int	quantn = 64;	/* allocation growth quantum */
234 
235 static struct lbuf	*nxtlbf;	/* ptr to next lbuf to be assigned */
236 static struct lbuf	**flist;	/* ptr to list of lbuf pointers */
237 static struct lbuf	*gstat(char *, int, struct ditem *);
238 static char		*getname(uid_t);
239 static char		*getgroup(gid_t);
240 static char		*makename(char *, char *);
241 static void		pentry(struct lbuf *);
242 static void		column(void);
243 static void		pmode(mode_t aflag);
244 static void		selection(int *);
245 static void		new_line(void);
246 static void		rddir(char *, struct ditem *);
247 static int		strcol(unsigned char *);
248 static void		pem(struct lbuf **, struct lbuf **, int);
249 static void		pdirectory(char *, int, int, int, struct ditem *);
250 static struct cachenode *findincache(struct cachenode **, long);
251 static void		csi_pprintf(unsigned char *);
252 static void		pprintf(char *, char *);
253 static int		compar(struct lbuf **pp1, struct lbuf **pp2);
254 static char 		*number_to_scaled_string(numbuf_t buf,
255 			    unsigned long long number,
256 			    long scale);
257 static void		record_ancestry(char *, struct stat *, struct lbuf *,
258 			    int, struct ditem *);
259 static void		ls_color_init(void);
260 static ls_color_t	*ls_color_find(const char *, mode_t);
261 static void		ls_start_color(ls_color_t *);
262 static void		ls_end_color(void);
263 
264 static int		aflg;
265 static int		atflg;
266 static int		bflg;
267 static int		cflg;
268 static int		dflg;
269 static int		eflg;
270 static int		fflg;
271 static int		gflg;
272 static int		hflg;
273 static int		iflg;
274 static int		lflg;
275 static int		mflg;
276 static int		nflg;
277 static int		oflg;
278 static int		pflg;
279 static int		qflg;
280 static int		rflg = 1; /* init to 1 for special use in compar */
281 static int		sflg;
282 static int		tflg;
283 static int		uflg;
284 static int		Uflg;
285 static int		wflg;
286 static int		xflg;
287 static int		Aflg;
288 static int		Bflg;
289 static int		Cflg;
290 static int		Eflg;
291 static int		Fflg;
292 static int		Hflg;
293 static int		Lflg;
294 static int		Rflg;
295 static int		Sflg;
296 static int		vflg;
297 static int		Vflg;
298 static int		saflg;		/* boolean extended system attr. */
299 static int		sacnt;		/* number of extended system attr. */
300 static int		copt;
301 static int		vopt;
302 static int		tmflg;		/* create time ext. system attr. */
303 static int		ctm;
304 static int		atm;
305 static int		mtm;
306 static int		crtm;
307 static int		alltm;
308 static long		hscale;
309 static mode_t		flags;
310 static int		err = 0;	/* Contains return code */
311 static int		colorflg;
312 static int		file_typeflg;
313 
314 static uid_t		lastuid	= (uid_t)-1;
315 static gid_t		lastgid = (gid_t)-1;
316 static char		*lastuname = NULL;
317 static char		*lastgname = NULL;
318 
319 /* statreq > 0 if any of sflg, (n)lflg, tflg, Sflg, colorflg are on */
320 static int		statreq;
321 
322 static uint64_t		block_size = 1;
323 static char		*dotp = ".";
324 
325 static u_longlong_t 	tblocks; /* number of blocks of files in a directory */
326 static time_t		year, now;
327 
328 static int		num_cols = 80;
329 static int		colwidth;
330 static int		filewidth;
331 static int		fixedwidth;
332 static int		nomocore;
333 static int		curcol;
334 
335 static struct	winsize	win;
336 
337 /* if time_fmt_new is left NULL, time_fmt_old is used for all times */
338 static const char	*time_fmt_old = FORMAT_OLD;	/* non-recent files */
339 static const char	*time_fmt_new = FORMAT_NEW;	/* recent files */
340 static int		time_custom;	/* != 0 if a custom format */
341 static char	time_buf[FMTSIZE];	/* array to hold day and time */
342 
343 static int		lsc_debug;
344 static ls_color_t	*lsc_match;
345 static ls_color_t	*lsc_colors;
346 static size_t		lsc_ncolors;
347 static char		*lsc_bold;
348 static char		*lsc_underline;
349 static char		*lsc_blink;
350 static char		*lsc_reverse;
351 static char		*lsc_concealed;
352 static char		*lsc_none;
353 static char		*lsc_setfg;
354 static char		*lsc_setbg;
355 static ls_color_t	*lsc_orphan;
356 
357 #define	NOTWORKINGDIR(d, l)	(((l) < 2) || \
358 				    (strcmp((d) + (l) - 2, "/.") != 0))
359 
360 #define	NOTPARENTDIR(d, l)	(((l) < 3) || \
361 				    (strcmp((d) + (l) - 3, "/..") != 0))
362 /* Extended system attributes support */
363 static int get_sysxattr(char *, struct lbuf *);
364 static void set_sysattrb_display(char *, boolean_t, struct lbuf *);
365 static void set_sysattrtm_display(char *, struct lbuf *);
366 static void format_time(time_t, time_t);
367 static void print_time(struct lbuf *);
368 static void format_attrtime(struct lbuf *);
369 static void *xmalloc(size_t, struct lbuf *);
370 static void free_sysattr(struct lbuf *);
371 static nvpair_t *pair;
372 static nvlist_t	*response;
373 static int acl_err;
374 
375 const struct option long_options[] = {
376 	{ "all", no_argument, NULL, 'a' },
377 	{ "almost-all", no_argument, NULL, 'A' },
378 	{ "escape", no_argument, NULL, 'b' },
379 	{ "classify", no_argument, NULL, 'F' },
380 	{ "human-readable", no_argument, NULL, 'h' },
381 	{ "dereference", no_argument, NULL, 'L' },
382 	{ "dereference-command-line", no_argument, NULL, 'H' },
383 	{ "ignore-backups", no_argument, NULL, 'B' },
384 	{ "inode", no_argument, NULL, 'i' },
385 	{ "numeric-uid-gid", no_argument, NULL, 'n' },
386 	{ "no-group", no_argument, NULL, 'o' },
387 	{ "hide-control-chars", no_argument, NULL, 'q' },
388 	{ "reverse", no_argument, NULL, 'r' },
389 	{ "recursive", no_argument, NULL, 'R' },
390 	{ "size", no_argument, NULL, 's' },
391 	{ "width", required_argument, NULL, 'w' },
392 
393 	/* no short options for these */
394 	{ "block-size", required_argument, NULL, 0 },
395 	{ "full-time", no_argument, NULL, 0 },
396 	{ "si", no_argument, NULL, 0 },
397 	{ "color", optional_argument, NULL, 0 },
398 	{ "colour", optional_argument, NULL, 0},
399 	{ "file-type", no_argument, NULL, 0 },
400 	{ "time-style", required_argument, NULL, 0 },
401 
402 	{0, 0, 0, 0}
403 };
404 
405 int
406 main(int argc, char *argv[])
407 {
408 	int		c;
409 	int		i;
410 	int		width;
411 	int		amino = 0;
412 	int		opterr = 0;
413 	int		option_index = 0;
414 	struct lbuf	*ep;
415 	struct lbuf	lb;
416 	struct ditem	*myinfo;
417 
418 	(void) setlocale(LC_ALL, "");
419 #if !defined(TEXT_DOMAIN)	/* Should be defined by cc -D */
420 #define	TEXT_DOMAIN "SYS_TEST"	/* Use this only if it weren't */
421 #endif
422 	(void) textdomain(TEXT_DOMAIN);
423 #ifdef STANDALONE
424 	if (argv[0][0] == '\0')
425 		argc = getargv("ls", &argv, 0);
426 #endif
427 
428 	lb.lmtime.tv_sec = time(NULL);
429 	lb.lmtime.tv_nsec = 0;
430 	year = lb.lmtime.tv_sec - 6L*30L*24L*60L*60L; /* 6 months ago */
431 	now = lb.lmtime.tv_sec + 60;
432 	if (isatty(1)) {
433 		Cflg = 1;
434 		mflg = 0;
435 	}
436 
437 	while ((c = getopt_long(argc, argv,
438 	    "+aAbBcCdeEfFghHiklLmnopqrRsStuUw:x1@vV/:%:", long_options,
439 	    &option_index)) != -1)
440 		switch (c) {
441 		case 0:
442 			/* non-short options */
443 			if (strcmp(long_options[option_index].name,
444 			    "color") == 0 ||
445 			    strcmp(long_options[option_index].name,
446 			    "colour") == 0) {
447 				if (optarg == NULL ||
448 				    strcmp(optarg, "always") == 0 ||
449 				    strcmp(optarg, "yes") == 0 ||
450 				    strcmp(optarg, "force") == 0) {
451 					colorflg++;
452 					statreq++;
453 					continue;
454 				}
455 
456 				if (strcmp(optarg, "auto") == 0 ||
457 				    strcmp(optarg, "tty") == 0 ||
458 				    strcmp(optarg, "if-tty") == 0) {
459 					if (isatty(1) == 1) {
460 						colorflg++;
461 						statreq++;
462 					}
463 					continue;
464 				}
465 
466 				if (strcmp(optarg, "never") == 0 ||
467 				    strcmp(optarg, "no") == 0 ||
468 				    strcmp(optarg, "none") == 0) {
469 					colorflg = 0;
470 					continue;
471 				}
472 				(void) fprintf(stderr,
473 				    gettext("Invalid argument '%s' for "
474 				    "--color\n"), optarg);
475 				++opterr;
476 				continue;
477 			}
478 
479 			if (strcmp(long_options[option_index].name,
480 			    "si") == 0) {
481 				hflg++;
482 				hscale = 1000;
483 				continue;
484 			}
485 
486 			if (strcmp(long_options[option_index].name,
487 			    "block-size") == 0) {
488 				size_t scale_len = strlen(optarg);
489 				uint64_t scale = 1;
490 				uint64_t kilo = 1024;
491 				char scale_c;
492 
493 				if (scale_len == 0) {
494 					(void) fprintf(stderr, gettext(
495 					    "Invalid block size \'%s\'\n"),
496 					    optarg);
497 					exit(1);
498 				}
499 
500 				scale_c = optarg[scale_len - 1];
501 				if (scale_c == 'B') {
502 					/* need at least digit, scale, B */
503 					if (scale_len < 3) {
504 						(void) fprintf(stderr, gettext(
505 						    "Invalid block size "
506 						    "\'%s\'\n"), optarg);
507 						exit(1);
508 					}
509 					kilo = 1000;
510 					scale_c = optarg[scale_len - 2];
511 					if (isdigit(scale_c)) {
512 						(void) fprintf(stderr,
513 						    gettext("Invalid block size"
514 						    " \'%s\'\n"), optarg);
515 						exit(1);
516 					}
517 					/*
518 					 * make optarg[scale_len - 1] point to
519 					 * the scale factor
520 					 */
521 					--scale_len;
522 				}
523 
524 				switch (scale_c) {
525 				case 'y':
526 				case 'Y':
527 					scale *= kilo;
528 					/*FALLTHROUGH*/
529 				case 'Z':
530 				case 'z':
531 					scale *= kilo;
532 					/*FALLTHROUGH*/
533 				case 'E':
534 				case 'e':
535 					scale *= kilo;
536 					/*FALLTHROUGH*/
537 				case 'P':
538 				case 'p':
539 					scale *= kilo;
540 					/*FALLTHROUGH*/
541 				case 'T':
542 				case 't':
543 					scale *= kilo;
544 					/*FALLTHROUGH*/
545 				case 'G':
546 				case 'g':
547 					scale *= kilo;
548 					/*FALLTHROUGH*/
549 				case 'M':
550 				case 'm':
551 					scale *= kilo;
552 					/*FALLTHROUGH*/
553 				case 'K':
554 				case 'k':
555 					scale *= kilo;
556 					break;
557 				default:
558 					if (!isdigit(scale_c)) {
559 						(void) fprintf(stderr,
560 						    gettext("Invalid character "
561 						    "following block size in "
562 						    "\'%s\'\n"), optarg);
563 						exit(1);
564 					}
565 				}
566 
567 				/* NULL out scale constant if present */
568 				if (scale > 1 && !isdigit(scale_c))
569 					optarg[scale_len - 1] = '\0';
570 
571 				/* Based on testing, this is what GNU ls does */
572 				block_size = strtoll(optarg, NULL, 0) * scale;
573 				if (block_size < 1) {
574 					(void) fprintf(stderr,
575 					    gettext("Invalid block size "
576 					    "\'%s\'\n"), optarg);
577 					exit(1);
578 				}
579 				continue;
580 			}
581 
582 			if (strcmp(long_options[option_index].name,
583 			    "file-type") == 0) {
584 				file_typeflg++;
585 				Fflg++;
586 				statreq++;
587 				continue;
588 			}
589 
590 
591 			if (strcmp(long_options[option_index].name,
592 			    "full-time") == 0) {
593 				Eflg++;
594 				statreq++;
595 				eflg = 0;
596 				time_fmt_old = FORMAT_ISO_FULL;
597 				time_fmt_new = FORMAT_ISO_FULL;
598 				continue;
599 			}
600 
601 			if (strcmp(long_options[option_index].name,
602 			    "time-style") == 0) {
603 				/* like -E, but doesn't imply -l */
604 				if (strcmp(optarg, "full-iso") == 0) {
605 					Eflg++;
606 					statreq++;
607 					eflg = 0;
608 					time_fmt_old = FORMAT_ISO_FULL;
609 					time_fmt_new = FORMAT_ISO_FULL;
610 					continue;
611 				}
612 				if (strcmp(optarg, "long-iso") == 0) {
613 					statreq++;
614 					Eflg = 0;
615 					eflg = 0;
616 					time_fmt_old = FORMAT_ISO_LONG;
617 					time_fmt_new = FORMAT_ISO_LONG;
618 					continue;
619 				}
620 				if (strcmp(optarg, "iso") == 0) {
621 					statreq++;
622 					Eflg = 0;
623 					eflg = 0;
624 					time_fmt_old = FORMAT_ISO_OLD;
625 					time_fmt_new = FORMAT_ISO_NEW;
626 					continue;
627 				}
628 				/* should be the default */
629 				if (strcmp(optarg, "locale") == 0) {
630 					time_fmt_old = FORMAT_OLD;
631 					time_fmt_new = FORMAT_NEW;
632 					continue;
633 				}
634 				if (optarg[0] == '+') {
635 					char	*told, *tnew;
636 					char	*p;
637 					size_t	timelen = strlen(optarg);
638 
639 					p = strchr(optarg, '\n');
640 					if (p != NULL)
641 						*p++ = '\0';
642 
643 					/*
644 					 * Time format requires a leading and
645 					 * trailing space
646 					 * Add room for 3 spaces + 2 nulls
647 					 * The + in optarg is replaced with
648 					 * a space.
649 					 */
650 					timelen += 2 + 3;
651 					told = malloc(timelen);
652 					if (told == NULL) {
653 						perror("Out of memory");
654 						exit(1);
655 					}
656 
657 					(void) memset(told, 0, timelen);
658 					told[0] = ' ';
659 					(void) strlcat(told, &optarg[1],
660 					    timelen);
661 					(void) strlcat(told, " ", timelen);
662 
663 					if (p != NULL) {
664 						size_t tnew_len;
665 
666 						tnew = told + strlen(told) + 1;
667 						tnew_len = timelen -
668 						    strlen(told) - 1;
669 
670 						tnew[0] = ' ';
671 						(void) strlcat(tnew, p,
672 						    tnew_len);
673 						(void) strlcat(tnew, " ",
674 						    tnew_len);
675 						time_fmt_new =
676 						    (const char *)tnew;
677 					} else {
678 						time_fmt_new =
679 						    (const char *)told;
680 					}
681 
682 					time_fmt_old = (const char *)told;
683 					time_custom = 1;
684 					continue;
685 				}
686 				continue;
687 			}
688 
689 			continue;
690 
691 		case 'a':
692 			aflg++;
693 			continue;
694 		case 'A':
695 			Aflg++;
696 			continue;
697 		case 'b':
698 			bflg = 1;
699 			qflg = 0;
700 			continue;
701 		case 'B':
702 			Bflg = 1;
703 			continue;
704 		case 'c':
705 			uflg = 0;
706 			atm = 0;
707 			ctm = 0;
708 			mtm = 0;
709 			crtm = 0;
710 			cflg++;
711 			continue;
712 		case 'C':
713 			Cflg = 1;
714 			mflg = 0;
715 #ifdef XPG4
716 			lflg = 0;
717 #endif
718 			continue;
719 		case 'd':
720 			dflg++;
721 			continue;
722 		case 'e':
723 			eflg++;
724 			lflg++;
725 			statreq++;
726 			Eflg = 0;
727 			time_fmt_old = FORMAT_LONG;
728 			time_fmt_new = FORMAT_LONG;
729 			continue;
730 		case 'E':
731 			Eflg++;
732 			lflg++;
733 			statreq++;
734 			eflg = 0;
735 			time_fmt_old = FORMAT_ISO_FULL;
736 			time_fmt_new = FORMAT_ISO_FULL;
737 			continue;
738 		case 'f':
739 			fflg++;
740 			continue;
741 		case 'F':
742 			Fflg++;
743 			statreq++;
744 			continue;
745 		case 'g':
746 			gflg++;
747 			lflg++;
748 			statreq++;
749 			continue;
750 		case 'h':
751 			hflg++;
752 			hscale = 1024;
753 			continue;
754 		case 'H':
755 			Hflg++;
756 			/* -H and -L are mutually exclusive */
757 			Lflg = 0;
758 			continue;
759 		case 'i':
760 			iflg++;
761 			continue;
762 		case 'k':
763 			block_size = 1024;
764 			continue;
765 		case 'l':
766 			lflg++;
767 			statreq++;
768 			Cflg = 0;
769 			xflg = 0;
770 			mflg = 0;
771 			atflg = 0;
772 			continue;
773 		case 'L':
774 			Lflg++;
775 			/* -H and -L are mutually exclusive */
776 			Hflg = 0;
777 			continue;
778 		case 'm':
779 			Cflg = 0;
780 			mflg = 1;
781 #ifdef XPG4
782 			lflg = 0;
783 #endif
784 			continue;
785 		case 'n':
786 			nflg++;
787 			lflg++;
788 			statreq++;
789 			Cflg = 0;
790 			xflg = 0;
791 			mflg = 0;
792 			atflg = 0;
793 			continue;
794 		case 'o':
795 			oflg++;
796 			lflg++;
797 			statreq++;
798 			continue;
799 		case 'p':
800 			pflg++;
801 			statreq++;
802 			continue;
803 		case 'q':
804 			qflg = 1;
805 			bflg = 0;
806 			continue;
807 		case 'r':
808 			rflg = -1;
809 			continue;
810 		case 'R':
811 			Rflg++;
812 			statreq++;
813 			continue;
814 		case 's':
815 			sflg++;
816 			statreq++;
817 			continue;
818 		case 'S':
819 			tflg = 0;
820 			Uflg = 0;
821 			Sflg++;
822 			statreq++;
823 			continue;
824 		case 't':
825 			Sflg = 0;
826 			Uflg = 0;
827 			tflg++;
828 			statreq++;
829 			continue;
830 		case 'U':
831 			Sflg = 0;
832 			tflg = 0;
833 			Uflg++;
834 			continue;
835 		case 'u':
836 			cflg = 0;
837 			atm = 0;
838 			ctm = 0;
839 			mtm = 0;
840 			crtm = 0;
841 			uflg++;
842 			continue;
843 		case 'V':
844 			Vflg++;
845 			/*FALLTHROUGH*/
846 		case 'v':
847 			vflg++;
848 #if !defined(XPG4)
849 			if (lflg)
850 				continue;
851 #endif
852 			lflg++;
853 			statreq++;
854 			Cflg = 0;
855 			xflg = 0;
856 			mflg = 0;
857 			continue;
858 		case 'w':
859 			wflg++;
860 			num_cols = atoi(optarg);
861 			continue;
862 		case 'x':
863 			xflg = 1;
864 			Cflg = 1;
865 			mflg = 0;
866 #ifdef XPG4
867 			lflg = 0;
868 #endif
869 			continue;
870 		case '1':
871 			Cflg = 0;
872 			continue;
873 		case '@':
874 #if !defined(XPG4)
875 			/*
876 			 * -l has precedence over -@
877 			 */
878 			if (lflg)
879 				continue;
880 #endif
881 			atflg++;
882 			lflg++;
883 			statreq++;
884 			Cflg = 0;
885 			xflg = 0;
886 			mflg = 0;
887 			continue;
888 		case '/':
889 			saflg++;
890 			if (optarg != NULL) {
891 				if (strcmp(optarg, "c") == 0) {
892 					copt++;
893 					vopt = 0;
894 				} else if (strcmp(optarg, "v") == 0) {
895 					vopt++;
896 					copt = 0;
897 				} else
898 					opterr++;
899 			} else
900 				opterr++;
901 			lflg++;
902 			statreq++;
903 			Cflg = 0;
904 			xflg = 0;
905 			mflg = 0;
906 			continue;
907 		case '%':
908 			tmflg++;
909 			if (optarg != NULL) {
910 				if (strcmp(optarg, "ctime") == 0) {
911 					ctm++;
912 					atm = 0;
913 					mtm = 0;
914 					crtm = 0;
915 				} else if (strcmp(optarg, "atime") == 0) {
916 					atm++;
917 					ctm = 0;
918 					mtm = 0;
919 					crtm = 0;
920 					uflg = 0;
921 					cflg = 0;
922 				} else if (strcmp(optarg, "mtime") == 0) {
923 					mtm++;
924 					atm = 0;
925 					ctm = 0;
926 					crtm = 0;
927 					uflg = 0;
928 					cflg = 0;
929 				} else if (strcmp(optarg, "crtime") == 0) {
930 					crtm++;
931 					atm = 0;
932 					ctm = 0;
933 					mtm = 0;
934 					uflg = 0;
935 					cflg = 0;
936 				} else if (strcmp(optarg, "all") == 0) {
937 					alltm++;
938 					atm = 0;
939 					ctm = 0;
940 					mtm = 0;
941 					crtm = 0;
942 				} else
943 					opterr++;
944 			} else
945 				opterr++;
946 
947 			Sflg = 0;
948 			statreq++;
949 			mflg = 0;
950 			continue;
951 		case '?':
952 			opterr++;
953 			continue;
954 		}
955 
956 	if (opterr) {
957 		(void) fprintf(stderr, gettext(
958 		    "usage: ls -aAbBcCdeEfFghHiklLmnopqrRsStuUwxvV1@/%[c | v]"
959 		    "%%[atime | crtime | ctime | mtime | all]"
960 		    " [files]\n"));
961 		exit(2);
962 	}
963 
964 	if (fflg) {
965 		aflg++;
966 		lflg = 0;
967 		sflg = 0;
968 		tflg = 0;
969 		Sflg = 0;
970 		statreq = 0;
971 	}
972 
973 	fixedwidth = 2;
974 	if (pflg || Fflg)
975 		fixedwidth++;
976 	if (iflg)
977 		fixedwidth += 11;
978 	if (sflg)
979 		fixedwidth += 5;
980 
981 	if (lflg) {
982 		if (!gflg && !oflg)
983 			gflg = oflg = 1;
984 		else
985 		if (gflg && oflg)
986 			gflg = oflg = 0;
987 		Cflg = mflg = 0;
988 	}
989 
990 	if (!wflg && (Cflg || mflg)) {
991 		char *clptr;
992 		if ((clptr = getenv("COLUMNS")) != NULL)
993 			num_cols = atoi(clptr);
994 #ifdef TERMINFO
995 		else {
996 			if (ioctl(1, TIOCGWINSZ, &win) != -1)
997 				num_cols = (win.ws_col == 0 ? 80 : win.ws_col);
998 		}
999 #endif
1000 	}
1001 
1002 	if (num_cols < 20 || num_cols > 1000)
1003 		/* assume it is an error */
1004 		num_cols = 80;
1005 
1006 	/* allocate space for flist and the associated	*/
1007 	/* data structures (lbufs)			*/
1008 	maxfils = quantn;
1009 	if (((flist = malloc(maxfils * sizeof (struct lbuf *))) == NULL) ||
1010 	    ((nxtlbf = malloc(quantn * sizeof (struct lbuf))) == NULL)) {
1011 		perror("ls");
1012 		exit(2);
1013 	}
1014 	if ((amino = (argc-optind)) == 0) {
1015 					/*
1016 					 * case when no names are given
1017 					 * in ls-command and current
1018 					 * directory is to be used
1019 					 */
1020 		argv[optind] = dotp;
1021 	}
1022 
1023 	for (i = 0; i < (amino ? amino : 1); i++) {
1024 
1025 		/*
1026 		 * If we are recursing, we need to make sure we don't
1027 		 * get into an endless loop.  To keep track of the inodes
1028 		 * (actually, just the directories) visited, we
1029 		 * maintain a directory ancestry list for a file
1030 		 * hierarchy.  As we go deeper into the hierarchy,
1031 		 * a parent directory passes its directory list
1032 		 * info (device id, inode number, and a pointer to
1033 		 * its parent) to each of its children.  As we
1034 		 * process a child that is a directory, we save
1035 		 * its own personal directory list info.  We then
1036 		 * check to see if the child has already been
1037 		 * processed by comparing its device id and inode
1038 		 * number from its own personal directory list info
1039 		 * to that of each of its ancestors.  If there is a
1040 		 * match, then we know we've detected a cycle.
1041 		 */
1042 		if (Rflg) {
1043 			/*
1044 			 * This is the first parent in this lineage
1045 			 * (first in a directory hierarchy), so
1046 			 * this parent's parent doesn't exist.  We
1047 			 * only initialize myinfo when we are
1048 			 * recursing, otherwise it's not used.
1049 			 */
1050 			if ((myinfo = (struct ditem *)malloc(
1051 			    sizeof (struct ditem))) == NULL) {
1052 				perror("ls");
1053 				exit(2);
1054 			} else {
1055 				myinfo->dev = 0;
1056 				myinfo->ino = 0;
1057 				myinfo->parent = NULL;
1058 			}
1059 		}
1060 
1061 		if (Cflg || mflg) {
1062 			width = strcol((unsigned char *)argv[optind]);
1063 			if (width > filewidth)
1064 				filewidth = width;
1065 		}
1066 		if ((ep = gstat((*argv[optind] ? argv[optind] : dotp),
1067 		    1, myinfo)) == NULL) {
1068 			if (nomocore)
1069 				exit(2);
1070 			err = 2;
1071 			optind++;
1072 			continue;
1073 		}
1074 		ep->ln.namep = (*argv[optind] ? argv[optind] : dotp);
1075 		ep->lflags |= ISARG;
1076 		optind++;
1077 		nargs++;	/* count good arguments stored in flist */
1078 		if (acl_err)
1079 			err = 2;
1080 	}
1081 	colwidth = fixedwidth + filewidth;
1082 	if (!Uflg)
1083 		qsort(flist, (unsigned)nargs, sizeof (struct lbuf *),
1084 		    (int (*)(const void *, const void *))compar);
1085 	for (i = 0; i < nargs; i++) {
1086 		if (flist[i]->ltype == 'd' && dflg == 0 || fflg)
1087 			break;
1088 	}
1089 
1090 	if (colorflg)
1091 		ls_color_init();
1092 
1093 	pem(&flist[0], &flist[i], 0);
1094 	for (; i < nargs; i++) {
1095 		pdirectory(flist[i]->ln.namep, Rflg ||
1096 		    (amino > 1), nargs, 0, flist[i]->ancinfo);
1097 		if (nomocore)
1098 			exit(2);
1099 		/* -R: print subdirectories found */
1100 		while (dfirst || cdfirst) {
1101 			/* Place direct subdirs on front in right order */
1102 			while (cdfirst) {
1103 				/* reverse cdfirst onto front of dfirst */
1104 				dtemp = cdfirst;
1105 				cdfirst = cdfirst -> dc_next;
1106 				dtemp -> dc_next = dfirst;
1107 				dfirst = dtemp;
1108 			}
1109 			/* take off first dir on dfirst & print it */
1110 			dtemp = dfirst;
1111 			dfirst = dfirst->dc_next;
1112 			pdirectory(dtemp->dc_name, 1, nargs,
1113 			    dtemp->cycle_detected, dtemp->myancinfo);
1114 			if (nomocore)
1115 				exit(2);
1116 			free(dtemp->dc_name);
1117 			free(dtemp);
1118 		}
1119 	}
1120 
1121 	return (err);
1122 }
1123 
1124 /*
1125  * pdirectory: print the directory name, labelling it if title is
1126  * nonzero, using lp as the place to start reading in the dir.
1127  */
1128 static void
1129 pdirectory(char *name, int title, int lp, int cdetect, struct ditem *myinfo)
1130 {
1131 	struct dchain *dp;
1132 	struct lbuf *ap;
1133 	char *pname;
1134 	int j;
1135 
1136 	filewidth = 0;
1137 	curdir = name;
1138 	if (title) {
1139 		if (!first)
1140 			(void) putc('\n', stdout);
1141 		pprintf(name, ":");
1142 		new_line();
1143 	}
1144 	/*
1145 	 * If there was a cycle detected, then notify and don't report
1146 	 * further.
1147 	 */
1148 	if (cdetect) {
1149 		if (lflg || sflg) {
1150 			curcol += printf(gettext("total %d"), 0);
1151 			new_line();
1152 		}
1153 		(void) fprintf(stderr, gettext(
1154 		    "ls: cycle detected for %s\n"), name);
1155 		return;
1156 	}
1157 
1158 	nfiles = lp;
1159 	rddir(name, myinfo);
1160 	if (nomocore)
1161 		return;
1162 	if (fflg == 0 && Uflg == 0)
1163 		qsort(&flist[lp], (unsigned)(nfiles - lp),
1164 		    sizeof (struct lbuf *),
1165 		    (int (*)(const void *, const void *))compar);
1166 	if (Rflg) {
1167 		for (j = nfiles - 1; j >= lp; j--) {
1168 			ap = flist[j];
1169 			if (ap->ltype == 'd' && strcmp(ap->ln.lname, ".") &&
1170 			    strcmp(ap->ln.lname, "..")) {
1171 				dp = malloc(sizeof (struct dchain));
1172 				if (dp == NULL) {
1173 					perror("ls");
1174 					exit(2);
1175 				}
1176 				pname = makename(curdir, ap->ln.lname);
1177 				if ((dp->dc_name = strdup(pname)) == NULL) {
1178 					perror("ls");
1179 					exit(2);
1180 				}
1181 				dp->cycle_detected = ap->cycle;
1182 				dp->myancinfo = ap->ancinfo;
1183 				dp->dc_next = dfirst;
1184 				dfirst = dp;
1185 			}
1186 		}
1187 	}
1188 	if (lflg || sflg) {
1189 		curcol += printf(gettext("total %llu"), tblocks);
1190 		new_line();
1191 	}
1192 	pem(&flist[lp], &flist[nfiles], lflg||sflg);
1193 }
1194 
1195 /*
1196  * pem: print 'em. Print a list of files (e.g. a directory) bounded
1197  * by slp and lp.
1198  */
1199 static void
1200 pem(struct lbuf **slp, struct lbuf **lp, int tot_flag)
1201 {
1202 	long row, nrows, i;
1203 	int col, ncols;
1204 	struct lbuf **ep;
1205 
1206 	if (Cflg || mflg) {
1207 		if (colwidth > num_cols) {
1208 			ncols = 1;
1209 		} else {
1210 			ncols = num_cols / colwidth;
1211 		}
1212 	}
1213 
1214 	if (ncols == 1 || mflg || xflg || !Cflg) {
1215 		for (ep = slp; ep < lp; ep++)
1216 			pentry(*ep);
1217 		new_line();
1218 		return;
1219 	}
1220 	/* otherwise print -C columns */
1221 	if (tot_flag) {
1222 		slp--;
1223 		row = 1;
1224 	}
1225 	else
1226 		row = 0;
1227 
1228 	nrows = (lp - slp - 1) / ncols + 1;
1229 	for (i = 0; i < nrows; i++, row++) {
1230 		for (col = 0; col < ncols; col++) {
1231 			ep = slp + (nrows * col) + row;
1232 			if (ep < lp)
1233 				pentry(*ep);
1234 		}
1235 		new_line();
1236 	}
1237 }
1238 
1239 /*
1240  * print one output entry;
1241  * if uid/gid is not found in the appropriate
1242  * file(passwd/group), then print uid/gid instead of
1243  * user/group name;
1244  */
1245 static void
1246 pentry(struct lbuf *ap)
1247 {
1248 	struct lbuf *p;
1249 	numbuf_t hbuf;
1250 	char *dmark = "";	/* Used if -p or -F option active */
1251 	char *cp;
1252 	char *str;
1253 
1254 	p = ap;
1255 	column();
1256 	if (iflg)
1257 		if (mflg && !lflg)
1258 			curcol += printf("%llu ", (long long)p->lnum);
1259 		else
1260 			curcol += printf("%10llu ", (long long)p->lnum);
1261 	if (sflg)
1262 		curcol += printf((mflg && !lflg) ? "%lld " :
1263 		    (p->lblocks < 10000) ? "%4lld " : "%lld ",
1264 		    (p->ltype != 'b' && p->ltype != 'c') ?
1265 		    p->lblocks : 0LL);
1266 	if (lflg) {
1267 		(void) putchar(p->ltype);
1268 		curcol++;
1269 		pmode(p->lflags);
1270 
1271 		/* ACL: additional access mode flag */
1272 		(void) putchar(p->acl);
1273 		curcol++;
1274 
1275 		curcol += printf("%3lu ", (ulong_t)p->lnl);
1276 		if (oflg)
1277 			if (!nflg) {
1278 				cp = getname(p->luid);
1279 				curcol += printf("%-8s ", cp);
1280 			} else
1281 				curcol += printf("%-8lu ", (ulong_t)p->luid);
1282 		if (gflg)
1283 			if (!nflg) {
1284 				cp = getgroup(p->lgid);
1285 				curcol += printf("%-8s ", cp);
1286 			} else
1287 				curcol += printf("%-8lu ", (ulong_t)p->lgid);
1288 		if (p->ltype == 'b' || p->ltype == 'c') {
1289 			curcol += printf("%3u, %2u",
1290 			    (uint_t)major((dev_t)p->lsize),
1291 			    (uint_t)minor((dev_t)p->lsize));
1292 		} else if (hflg && (p->lsize >= hscale)) {
1293 			curcol += printf("%7s",
1294 			    number_to_scaled_string(hbuf, p->lsize, hscale));
1295 		} else {
1296 			uint64_t bsize = p->lsize / block_size;
1297 
1298 			/*
1299 			 * Round up only when using blocks > 1 byte, otherwise
1300 			 * 'normal' sizes display 1 byte too large.
1301 			 */
1302 			if (p->lsize % block_size != 0)
1303 				bsize++;
1304 
1305 			curcol += printf("%7" PRIu64, bsize);
1306 		}
1307 		format_time(p->lmtime.tv_sec, p->lmtime.tv_nsec);
1308 		/* format extended system attribute time */
1309 		if (tmflg && crtm)
1310 			format_attrtime(p);
1311 
1312 		curcol += printf("%s", time_buf);
1313 
1314 	}
1315 	/*
1316 	 * prevent both "->" and trailing marks
1317 	 * from appearing
1318 	 */
1319 
1320 	if (pflg && p->ltype == 'd')
1321 		dmark = "/";
1322 
1323 	if (Fflg && !(lflg && p->flinkto)) {
1324 		if (p->ltype == 'd')
1325 			dmark = "/";
1326 		else if (p->ltype == 'D')
1327 			dmark = ">";
1328 		else if (p->ltype == 'p')
1329 			dmark = "|";
1330 		else if (p->ltype == 'l')
1331 			dmark = "@";
1332 		else if (p->ltype == 's')
1333 			dmark = "=";
1334 		else if (!file_typeflg &&
1335 		    (p->lflags & (S_IXUSR|S_IXGRP|S_IXOTH)))
1336 			dmark = "*";
1337 		else
1338 			dmark = "";
1339 	}
1340 
1341 	if (colorflg)
1342 		ls_start_color(p->color);
1343 
1344 	if (p->lflags & ISARG)
1345 		str = p->ln.namep;
1346 	else
1347 		str = p->ln.lname;
1348 
1349 	if (qflg || bflg) {
1350 		csi_pprintf((unsigned char *)str);
1351 
1352 		if (lflg && p->flinkto) {
1353 			if (colorflg)
1354 				ls_end_color();
1355 			csi_pprintf((unsigned char *)" -> ");
1356 			if (colorflg)
1357 				ls_start_color(p->link_color);
1358 			csi_pprintf((unsigned char *)p->flinkto);
1359 		} else {
1360 			csi_pprintf((unsigned char *)dmark);
1361 		}
1362 	} else {
1363 		(void) printf("%s", str);
1364 		curcol += strcol((unsigned char *)str);
1365 
1366 		if (lflg && p->flinkto) {
1367 			if (colorflg)
1368 				ls_end_color();
1369 			str = " -> ";
1370 			(void) printf("%s", str);
1371 			curcol += strcol((unsigned char *)str);
1372 			if (colorflg)
1373 				ls_start_color(p->link_color);
1374 			(void) printf("%s", p->flinkto);
1375 			curcol += strcol((unsigned char *)p->flinkto);
1376 		} else {
1377 			(void) printf("%s", dmark);
1378 			curcol += strcol((unsigned char *)dmark);
1379 		}
1380 	}
1381 
1382 	if (colorflg)
1383 		ls_end_color();
1384 
1385 	/* Display extended system attributes */
1386 	if (saflg) {
1387 		int i;
1388 
1389 		new_line();
1390 		(void) printf("	\t{");
1391 		if (p->exttr != NULL) {
1392 			int k = 0;
1393 			for (i = 0; i < sacnt; i++) {
1394 				if (p->exttr[i].name != NULL)
1395 					k++;
1396 			}
1397 			for (i = 0; i < sacnt; i++) {
1398 				if (p->exttr[i].name != NULL) {
1399 					(void) printf("%s", p->exttr[i].name);
1400 					k--;
1401 					if (vopt && (k != 0))
1402 						(void) printf(",");
1403 				}
1404 			}
1405 		}
1406 		(void) printf("}\n");
1407 	}
1408 	/* Display file timestamps and extended system attribute timestamps */
1409 	if (tmflg && alltm) {
1410 		new_line();
1411 		print_time(p);
1412 		new_line();
1413 	}
1414 	if (vflg) {
1415 		new_line();
1416 		if (p->aclp) {
1417 			acl_printacl(p->aclp, num_cols, Vflg);
1418 		}
1419 	}
1420 	/* Free extended system attribute lists */
1421 	if (saflg || tmflg)
1422 		free_sysattr(p);
1423 }
1424 
1425 /* print various r,w,x permissions */
1426 static void
1427 pmode(mode_t aflag)
1428 {
1429 	/* these arrays are declared static to allow initializations */
1430 	static int	m0[] = { 1, S_IRUSR, 'r', '-' };
1431 	static int	m1[] = { 1, S_IWUSR, 'w', '-' };
1432 	static int	m2[] = { 3, S_ISUID|S_IXUSR, 's', S_IXUSR,
1433 	    'x', S_ISUID, 'S', '-' };
1434 	static int	m3[] = { 1, S_IRGRP, 'r', '-' };
1435 	static int	m4[] = { 1, S_IWGRP, 'w', '-' };
1436 	static int	m5[] = { 4, S_ISGID|S_IXGRP, 's', S_IXGRP,
1437 				'x', S_ISGID|LS_NOTREG, 'S',
1438 #ifdef XPG4
1439 		S_ISGID, 'L', '-'};
1440 #else
1441 		S_ISGID, 'l', '-'};
1442 #endif
1443 	static int	m6[] = { 1, S_IROTH, 'r', '-' };
1444 	static int	m7[] = { 1, S_IWOTH, 'w', '-' };
1445 	static int	m8[] = { 3, S_ISVTX|S_IXOTH, 't', S_IXOTH,
1446 	    'x', S_ISVTX, 'T', '-'};
1447 
1448 	static int *m[] = { m0, m1, m2, m3, m4, m5, m6, m7, m8};
1449 
1450 	int **mp;
1451 
1452 	flags = aflag;
1453 	for (mp = &m[0]; mp < &m[sizeof (m) / sizeof (m[0])]; mp++)
1454 		selection(*mp);
1455 }
1456 
1457 static void
1458 selection(int *pairp)
1459 {
1460 	int n;
1461 
1462 	n = *pairp++;
1463 	while (n-->0) {
1464 		if ((flags & *pairp) == *pairp) {
1465 			pairp++;
1466 			break;
1467 		} else {
1468 			pairp += 2;
1469 		}
1470 	}
1471 	(void) putchar(*pairp);
1472 	curcol++;
1473 }
1474 
1475 /*
1476  * column: get to the beginning of the next column.
1477  */
1478 static void
1479 column(void)
1480 {
1481 	if (curcol == 0)
1482 		return;
1483 	if (mflg) {
1484 		(void) putc(',', stdout);
1485 		curcol++;
1486 		if (curcol + colwidth + 2 > num_cols) {
1487 			(void) putc('\n', stdout);
1488 			curcol = 0;
1489 			return;
1490 		}
1491 		(void) putc(' ', stdout);
1492 		curcol++;
1493 		return;
1494 	}
1495 	if (Cflg == 0) {
1496 		(void) putc('\n', stdout);
1497 		curcol = 0;
1498 		return;
1499 	}
1500 	if ((curcol / colwidth + 2) * colwidth > num_cols) {
1501 		(void) putc('\n', stdout);
1502 		curcol = 0;
1503 		return;
1504 	}
1505 	do {
1506 		(void) putc(' ', stdout);
1507 		curcol++;
1508 	} while (curcol % colwidth);
1509 }
1510 
1511 static void
1512 new_line(void)
1513 {
1514 	if (curcol) {
1515 		first = 0;
1516 		(void) putc('\n', stdout);
1517 		curcol = 0;
1518 	}
1519 }
1520 
1521 /*
1522  * read each filename in directory dir and store its
1523  * status in flist[nfiles]
1524  * use makename() to form pathname dir/filename;
1525  */
1526 static void
1527 rddir(char *dir, struct ditem *myinfo)
1528 {
1529 	struct dirent *dentry;
1530 	DIR *dirf;
1531 	int j;
1532 	struct lbuf *ep;
1533 	int width;
1534 
1535 	if ((dirf = opendir(dir)) == NULL) {
1536 		(void) fflush(stdout);
1537 		perror(dir);
1538 		err = 2;
1539 		return;
1540 	} else {
1541 		tblocks = 0;
1542 		for (;;) {
1543 			errno = 0;
1544 			if ((dentry = readdir(dirf)) == NULL)
1545 				break;
1546 			if (aflg == 0 && dentry->d_name[0] == '.' &&
1547 			    (Aflg == 0 ||
1548 			    dentry->d_name[1] == '\0' ||
1549 			    dentry->d_name[1] == '.' &&
1550 			    dentry->d_name[2] == '\0'))
1551 				/*
1552 				 * check for directory items '.', '..',
1553 				 *  and items without valid inode-number;
1554 				 */
1555 				continue;
1556 
1557 			/* skip entries ending in ~ if -B was given */
1558 			if (Bflg &&
1559 			    dentry->d_name[strlen(dentry->d_name) - 1] == '~')
1560 				continue;
1561 			if (Cflg || mflg) {
1562 				width = strcol((unsigned char *)dentry->d_name);
1563 				if (width > filewidth)
1564 					filewidth = width;
1565 			}
1566 			ep = gstat(makename(dir, dentry->d_name), 0, myinfo);
1567 			if (ep == NULL) {
1568 				if (nomocore)
1569 					exit(2);
1570 				continue;
1571 			} else {
1572 				ep->lnum = dentry->d_ino;
1573 				for (j = 0; dentry->d_name[j] != '\0'; j++)
1574 					ep->ln.lname[j] = dentry->d_name[j];
1575 				ep->ln.lname[j] = '\0';
1576 			}
1577 		}
1578 		if (errno) {
1579 			int sav_errno = errno;
1580 
1581 			(void) fprintf(stderr,
1582 			    gettext("ls: error reading directory %s: %s\n"),
1583 			    dir, strerror(sav_errno));
1584 		}
1585 		(void) closedir(dirf);
1586 		colwidth = fixedwidth + filewidth;
1587 	}
1588 }
1589 
1590 /*
1591  * Attaching a link to an inode's ancestors.  Search
1592  * through the ancestors to check for cycles (an inode which
1593  * we have already tracked in this inodes ancestry).  If a cycle
1594  * is detected, set the exit code and record the fact so that
1595  * it is reported at the right time when printing the directory.
1596  * In addition, set the exit code.  Note:  If the -a flag was
1597  * specified, we don't want to check for cycles for directories
1598  * ending in '/.' or '/..' unless they were specified on the
1599  * command line.
1600  */
1601 static void
1602 record_ancestry(char *file, struct stat *pstatb, struct lbuf *rep,
1603     int argfl, struct ditem *myparent)
1604 {
1605 	size_t		file_len;
1606 	struct ditem	*myinfo;
1607 	struct ditem	*tptr;
1608 
1609 	file_len = strlen(file);
1610 	if (!aflg || argfl || (NOTWORKINGDIR(file, file_len) &&
1611 	    NOTPARENTDIR(file, file_len))) {
1612 		/*
1613 		 * Add this inode's ancestry
1614 		 * info and insert it into the
1615 		 * ancestry list by pointing
1616 		 * back to its parent.  We save
1617 		 * it (in rep) with the other info
1618 		 * we're gathering for this inode.
1619 		 */
1620 		if ((myinfo = malloc(
1621 		    sizeof (struct ditem))) == NULL) {
1622 			perror("ls");
1623 			exit(2);
1624 		}
1625 		myinfo->dev = pstatb->st_dev;
1626 		myinfo->ino = pstatb->st_ino;
1627 		myinfo->parent = myparent;
1628 		rep->ancinfo = myinfo;
1629 
1630 		/*
1631 		 * If this node has the same device id and
1632 		 * inode number of one of its ancestors,
1633 		 * then we've detected a cycle.
1634 		 */
1635 		if (myparent != NULL) {
1636 			for (tptr = myparent; tptr->parent != NULL;
1637 			    tptr = tptr->parent) {
1638 				if ((tptr->dev == pstatb->st_dev) &&
1639 				    (tptr->ino == pstatb->st_ino)) {
1640 					/*
1641 					 * Cycle detected for this
1642 					 * directory.  Record the fact
1643 					 * it is a cycle so we don't
1644 					 * try to process this
1645 					 * directory as we are
1646 					 * walking through the
1647 					 * list of directories.
1648 					 */
1649 					rep->cycle = 1;
1650 					err = 2;
1651 					break;
1652 				}
1653 			}
1654 		}
1655 	}
1656 }
1657 
1658 /*
1659  * Do re-calculate the mode for group for ACE_T type of acls.
1660  * This is because, if the server's FS happens to be UFS, supporting
1661  * POSIX ACL's, then it does a special calculation of group mode
1662  * to be the bitwise OR of CLASS_OBJ and GROUP_OBJ (see PSARC/2001/717.)
1663  *
1664  * This algorithm is from the NFSv4 ACL Draft. Here a part of that
1665  * algorithm is used for the group mode calculation only.
1666  * What is modified here from the algorithm is that only the
1667  * entries with flags ACE_GROUP are considered. For each entry
1668  * with ACE_GROUP flag, the first occurance of a specific access
1669  * is checked if it is allowed.
1670  * We are not interested in perms for user and other, as they
1671  * were taken from st_mode value.
1672  * We are not interested in a_who field of ACE, as we need just
1673  * unix mode bits for the group.
1674  */
1675 
1676 #define	OWNED_GROUP	(ACE_GROUP | ACE_IDENTIFIER_GROUP)
1677 #define	IS_TYPE_ALLOWED(type)	((type) == ACE_ACCESS_ALLOWED_ACE_TYPE)
1678 
1679 int
1680 grp_mask_to_mode(acl_t *acep)
1681 {
1682 	int mode = 0, seen = 0;
1683 	int acecnt;
1684 	int flags;
1685 	ace_t *ap;
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_EVERYONE) {
1704 			if (ap->a_access_mask & ACE_READ_DATA) {
1705 				if (!(seen & S_IRGRP)) {
1706 					seen |= S_IRGRP;
1707 					if (IS_TYPE_ALLOWED(ap->a_type))
1708 						mode |= S_IRGRP;
1709 				}
1710 			}
1711 			if (ap->a_access_mask & ACE_WRITE_DATA) {
1712 				if (!(seen & S_IWGRP)) {
1713 					seen |= S_IWGRP;
1714 					if (IS_TYPE_ALLOWED(ap->a_type))
1715 						mode |= S_IWGRP;
1716 				}
1717 			}
1718 			if (ap->a_access_mask & ACE_EXECUTE) {
1719 				if (!(seen & S_IXGRP)) {
1720 					seen |= S_IXGRP;
1721 					if (IS_TYPE_ALLOWED(ap->a_type))
1722 						mode |= S_IXGRP;
1723 				}
1724 			}
1725 		}
1726 	}
1727 	return (mode);
1728 }
1729 
1730 /*
1731  * get status of file and recomputes tblocks;
1732  * argfl = 1 if file is a name in ls-command and = 0
1733  * for filename in a directory whose name is an
1734  * argument in the command;
1735  * stores a pointer in flist[nfiles] and
1736  * returns that pointer;
1737  * returns NULL if failed;
1738  */
1739 static struct lbuf *
1740 gstat(char *file, int argfl, struct ditem *myparent)
1741 {
1742 	struct stat statb, statb1;
1743 	struct lbuf *rep;
1744 	char buf[BUFSIZ];
1745 	ssize_t cc;
1746 	int (*statf)() = ((Lflg) || (Hflg && argfl)) ? stat : lstat;
1747 	int aclcnt;
1748 	int error;
1749 	aclent_t *tp;
1750 	o_mode_t groupperm, mask;
1751 	int grouppermfound, maskfound;
1752 
1753 	if (nomocore)
1754 		return (NULL);
1755 
1756 	if (nfiles >= maxfils) {
1757 		/*
1758 		 * all flist/lbuf pair assigned files, time to get some
1759 		 * more space
1760 		 */
1761 		maxfils += quantn;
1762 		if (((flist = realloc(flist,
1763 		    maxfils * sizeof (struct lbuf *))) == NULL) ||
1764 		    ((nxtlbf = malloc(quantn *
1765 		    sizeof (struct lbuf))) == NULL)) {
1766 			perror("ls");
1767 			nomocore = 1;
1768 			return (NULL);
1769 		}
1770 	}
1771 
1772 	/*
1773 	 * nfiles is reset to nargs for each directory
1774 	 * that is given as an argument maxn is checked
1775 	 * to prevent the assignment of an lbuf to a flist entry
1776 	 * that already has one assigned.
1777 	 */
1778 	if (nfiles >= maxn) {
1779 		rep = nxtlbf++;
1780 		flist[nfiles++] = rep;
1781 		maxn = nfiles;
1782 	} else {
1783 		rep = flist[nfiles++];
1784 	}
1785 
1786 	/* Initialize */
1787 
1788 	rep->lflags = (mode_t)0;
1789 	rep->flinkto = NULL;
1790 	rep->cycle = 0;
1791 	rep->lat.tv_sec = time(NULL);
1792 	rep->lat.tv_nsec = 0;
1793 	rep->lct.tv_sec = time(NULL);
1794 	rep->lct.tv_nsec = 0;
1795 	rep->lmt.tv_sec = time(NULL);
1796 	rep->lmt.tv_nsec = 0;
1797 	rep->exttr = NULL;
1798 	rep->extm = NULL;
1799 	rep->color = NULL;
1800 	rep->link_color = NULL;
1801 
1802 	if (argfl || statreq) {
1803 		int doacl;
1804 
1805 		if (lflg)
1806 			doacl = 1;
1807 		else
1808 			doacl = 0;
1809 
1810 		if ((*statf)(file, &statb) < 0) {
1811 			if (argfl || errno != ENOENT ||
1812 			    (Lflg && lstat(file, &statb) == 0)) {
1813 				/*
1814 				 * Avoid race between readdir and lstat.
1815 				 * Print error message in case of dangling link.
1816 				 */
1817 				perror(file);
1818 				err = 2;
1819 			}
1820 			nfiles--;
1821 			return (NULL);
1822 		}
1823 
1824 		/*
1825 		 * If -H was specified, and the file linked to was
1826 		 * not a directory, then we need to get the info
1827 		 * for the symlink itself.
1828 		 */
1829 		if ((Hflg) && (argfl) &&
1830 		    ((statb.st_mode & S_IFMT) != S_IFDIR)) {
1831 			if (lstat(file, &statb) < 0) {
1832 				perror(file);
1833 				err = 2;
1834 			}
1835 		}
1836 
1837 		rep->lnum = statb.st_ino;
1838 		rep->lsize = statb.st_size;
1839 		rep->lblocks = statb.st_blocks;
1840 		if (colorflg)
1841 			rep->color = ls_color_find(file, statb.st_mode);
1842 
1843 		switch (statb.st_mode & S_IFMT) {
1844 		case S_IFDIR:
1845 			rep->ltype = 'd';
1846 			if (Rflg) {
1847 				record_ancestry(file, &statb, rep,
1848 				    argfl, myparent);
1849 			}
1850 			break;
1851 		case S_IFBLK:
1852 			rep->ltype = 'b';
1853 			rep->lsize = (off_t)statb.st_rdev;
1854 			break;
1855 		case S_IFCHR:
1856 			rep->ltype = 'c';
1857 			rep->lsize = (off_t)statb.st_rdev;
1858 			break;
1859 		case S_IFIFO:
1860 			rep->ltype = 'p';
1861 			break;
1862 		case S_IFSOCK:
1863 			rep->ltype = 's';
1864 			rep->lsize = 0;
1865 			break;
1866 		case S_IFLNK:
1867 			/* symbolic links may not have ACLs, so elide acl() */
1868 			if ((Lflg == 0) || (Hflg == 0) ||
1869 			    ((Hflg) && (!argfl))) {
1870 				doacl = 0;
1871 			}
1872 			rep->ltype = 'l';
1873 			if (lflg || colorflg) {
1874 				cc = readlink(file, buf, BUFSIZ);
1875 				if (cc < 0)
1876 					break;
1877 
1878 				/*
1879 				 * follow the symbolic link
1880 				 * to generate the appropriate
1881 				 * Fflg marker for the object
1882 				 * eg, /bin -> /sym/bin/
1883 				 */
1884 				error = 0;
1885 				if (Fflg || pflg || colorflg)
1886 					error = stat(file, &statb1);
1887 
1888 				if (colorflg) {
1889 					if (error >= 0)
1890 						rep->link_color =
1891 						    ls_color_find(file,
1892 						    statb1.st_mode);
1893 					else
1894 						rep->link_color =
1895 						    lsc_orphan;
1896 				}
1897 
1898 				if ((Fflg || pflg) && error >= 0) {
1899 					switch (statb1.st_mode & S_IFMT) {
1900 					case S_IFDIR:
1901 						buf[cc++] = '/';
1902 						break;
1903 					case S_IFSOCK:
1904 						buf[cc++] = '=';
1905 						break;
1906 					case S_IFDOOR:
1907 						buf[cc++] = '>';
1908 						break;
1909 					case S_IFIFO:
1910 						buf[cc++] = '|';
1911 						break;
1912 					default:
1913 						if ((statb1.st_mode & ~S_IFMT) &
1914 						    (S_IXUSR|S_IXGRP| S_IXOTH))
1915 							buf[cc++] = '*';
1916 						break;
1917 					}
1918 				}
1919 				buf[cc] = '\0';
1920 				rep->flinkto = strdup(buf);
1921 				break;
1922 			}
1923 
1924 			/*
1925 			 * ls /sym behaves differently from ls /sym/
1926 			 * when /sym is a symbolic link. This is fixed
1927 			 * when explicit arguments are specified.
1928 			 */
1929 
1930 #ifdef XPG6
1931 			/* Do not follow a symlink when -F is specified */
1932 			if ((!argfl) || (argfl && Fflg) ||
1933 			    (stat(file, &statb1) < 0))
1934 #else
1935 			/* Follow a symlink when -F is specified */
1936 			if (!argfl || stat(file, &statb1) < 0)
1937 #endif /* XPG6 */
1938 				break;
1939 			if ((statb1.st_mode & S_IFMT) == S_IFDIR) {
1940 				statb = statb1;
1941 				rep->ltype = 'd';
1942 				rep->lsize = statb1.st_size;
1943 				if (Rflg) {
1944 					record_ancestry(file, &statb, rep,
1945 					    argfl, myparent);
1946 				}
1947 			}
1948 			break;
1949 		case S_IFDOOR:
1950 			rep->ltype = 'D';
1951 			break;
1952 		case S_IFREG:
1953 			rep->ltype = '-';
1954 			break;
1955 		case S_IFPORT:
1956 			rep->ltype = 'P';
1957 			break;
1958 		default:
1959 			rep->ltype = '?';
1960 			break;
1961 		}
1962 		rep->lflags = statb.st_mode & ~S_IFMT;
1963 
1964 		if (!S_ISREG(statb.st_mode))
1965 			rep->lflags |= LS_NOTREG;
1966 
1967 		rep->luid = statb.st_uid;
1968 		rep->lgid = statb.st_gid;
1969 		rep->lnl = statb.st_nlink;
1970 		if (uflg || (tmflg && atm))
1971 			rep->lmtime = statb.st_atim;
1972 		else if (cflg || (tmflg && ctm))
1973 			rep->lmtime = statb.st_ctim;
1974 		else
1975 			rep->lmtime = statb.st_mtim;
1976 		rep->lat = statb.st_atim;
1977 		rep->lct = statb.st_ctim;
1978 		rep->lmt = statb.st_mtim;
1979 
1980 		/* ACL: check acl entries count */
1981 		if (doacl) {
1982 
1983 			error = acl_get(file, 0, &rep->aclp);
1984 			if (error) {
1985 				(void) fprintf(stderr,
1986 				    gettext("ls: can't read ACL on %s: %s\n"),
1987 				    file, acl_strerror(error));
1988 				rep->acl = ' ';
1989 				acl_err++;
1990 				return (rep);
1991 			}
1992 
1993 			rep->acl = ' ';
1994 
1995 			if (rep->aclp &&
1996 			    ((acl_flags(rep->aclp) & ACL_IS_TRIVIAL) == 0)) {
1997 				rep->acl = '+';
1998 				/*
1999 				 * Special handling for ufs aka aclent_t ACL's
2000 				 */
2001 				if (acl_type(rep->aclp) == ACLENT_T) {
2002 					/*
2003 					 * For files with non-trivial acls, the
2004 					 * effective group permissions are the
2005 					 * intersection of the GROUP_OBJ value
2006 					 * and the CLASS_OBJ (acl mask) value.
2007 					 * Determine both the GROUP_OBJ and
2008 					 * CLASS_OBJ for this file and insert
2009 					 * the logical AND of those two values
2010 					 * in the group permissions field
2011 					 * of the lflags value for this file.
2012 					 */
2013 
2014 					/*
2015 					 * Until found in acl list, assume
2016 					 * maximum permissions for both group
2017 					 * a nd mask.  (Just in case the acl
2018 					 * lacks either value for some reason.)
2019 					 */
2020 					groupperm = 07;
2021 					mask = 07;
2022 					grouppermfound = 0;
2023 					maskfound = 0;
2024 					aclcnt = acl_cnt(rep->aclp);
2025 					for (tp =
2026 					    (aclent_t *)acl_data(rep->aclp);
2027 					    aclcnt--; tp++) {
2028 						if (tp->a_type == GROUP_OBJ) {
2029 							groupperm = tp->a_perm;
2030 							grouppermfound = 1;
2031 							continue;
2032 						}
2033 						if (tp->a_type == CLASS_OBJ) {
2034 							mask = tp->a_perm;
2035 							maskfound = 1;
2036 						}
2037 						if (grouppermfound && maskfound)
2038 							break;
2039 					}
2040 
2041 
2042 					/* reset all the group bits */
2043 					rep->lflags &= ~S_IRWXG;
2044 
2045 					/*
2046 					 * Now set them to the logical AND of
2047 					 * the GROUP_OBJ permissions and the
2048 					 * acl mask.
2049 					 */
2050 
2051 					rep->lflags |= (groupperm & mask) << 3;
2052 
2053 				} else if (acl_type(rep->aclp) == ACE_T) {
2054 					int mode;
2055 					mode = grp_mask_to_mode(rep->aclp);
2056 					rep->lflags &= ~S_IRWXG;
2057 					rep->lflags |= mode;
2058 				}
2059 			}
2060 
2061 			if (!vflg && !Vflg && rep->aclp) {
2062 				acl_free(rep->aclp);
2063 				rep->aclp = NULL;
2064 			}
2065 
2066 			if (atflg && pathconf(file, _PC_XATTR_EXISTS) == 1)
2067 				rep->acl = '@';
2068 
2069 		} else
2070 			rep->acl = ' ';
2071 
2072 		/* mask ISARG and other file-type bits */
2073 
2074 		if (rep->ltype != 'b' && rep->ltype != 'c')
2075 			tblocks += rep->lblocks;
2076 
2077 		/* Get extended system attributes */
2078 
2079 		if ((saflg || (tmflg && crtm) || (tmflg && alltm)) &&
2080 		    (sysattr_support(file, _PC_SATTR_EXISTS) == 1)) {
2081 			int i;
2082 
2083 			sacnt = attr_count();
2084 			/*
2085 			 * Allocate 'sacnt' size array to hold extended
2086 			 * system attribute name (verbose) or respective
2087 			 * symbol represenation (compact).
2088 			 */
2089 			rep->exttr = xmalloc(sacnt * sizeof (struct attrb),
2090 			    rep);
2091 
2092 			/* initialize boolean attribute list */
2093 			for (i = 0; i < sacnt; i++)
2094 				rep->exttr[i].name = NULL;
2095 			if (get_sysxattr(file, rep) != 0) {
2096 				(void) fprintf(stderr,
2097 				    gettext("ls:Failed to retrieve "
2098 				    "extended system attribute from "
2099 				    "%s\n"), file);
2100 				rep->exttr[0].name = xmalloc(2, rep);
2101 				(void) strlcpy(rep->exttr[0].name, "?", 2);
2102 			}
2103 		}
2104 	}
2105 	return (rep);
2106 }
2107 
2108 /*
2109  * returns pathname of the form dir/file;
2110  * dir and file are null-terminated strings.
2111  */
2112 static char *
2113 makename(char *dir, char *file)
2114 {
2115 	/*
2116 	 * PATH_MAX is the maximum length of a path name.
2117 	 * MAXNAMLEN is the maximum length of any path name component.
2118 	 * Allocate space for both, plus the '/' in the middle
2119 	 * and the null character at the end.
2120 	 * dfile is static as this is returned by makename().
2121 	 */
2122 	static char dfile[PATH_MAX + 1 + MAXNAMLEN + 1];
2123 	char *dp, *fp;
2124 
2125 	dp = dfile;
2126 	fp = dir;
2127 	while (*fp)
2128 		*dp++ = *fp++;
2129 	if (dp > dfile && *(dp - 1) != '/')
2130 		*dp++ = '/';
2131 	fp = file;
2132 	while (*fp)
2133 		*dp++ = *fp++;
2134 	*dp = '\0';
2135 	return (dfile);
2136 }
2137 
2138 
2139 #include <pwd.h>
2140 #include <grp.h>
2141 #include <utmpx.h>
2142 
2143 struct	utmpx utmp;
2144 
2145 #define	NMAX	(sizeof (utmp.ut_name))
2146 #define	SCPYN(a, b)	(void) strncpy(a, b, NMAX)
2147 
2148 
2149 struct cachenode {		/* this struct must be zeroed before using */
2150 	struct cachenode *lesschild;	/* subtree whose entries < val */
2151 	struct cachenode *grtrchild;	/* subtree whose entries > val */
2152 	long val;			/* the uid or gid of this entry */
2153 	int initted;			/* name has been filled in */
2154 	char name[NMAX+1];		/* the string that val maps to */
2155 };
2156 static struct cachenode *names, *groups;
2157 
2158 static struct cachenode *
2159 findincache(struct cachenode **head, long val)
2160 {
2161 	struct cachenode **parent = head;
2162 	struct cachenode *c = *parent;
2163 
2164 	while (c != NULL) {
2165 		if (val == c->val) {
2166 			/* found it */
2167 			return (c);
2168 		} else if (val < c->val) {
2169 			parent = &c->lesschild;
2170 			c = c->lesschild;
2171 		} else {
2172 			parent = &c->grtrchild;
2173 			c = c->grtrchild;
2174 		}
2175 	}
2176 
2177 	/* not in the cache, make a new entry for it */
2178 	c = calloc(1, sizeof (struct cachenode));
2179 	if (c == NULL) {
2180 		perror("ls");
2181 		exit(2);
2182 	}
2183 	*parent = c;
2184 	c->val = val;
2185 	return (c);
2186 }
2187 
2188 /*
2189  * get name from cache, or passwd file for a given uid;
2190  * lastuid is set to uid.
2191  */
2192 static char *
2193 getname(uid_t uid)
2194 {
2195 	struct passwd *pwent;
2196 	struct cachenode *c;
2197 
2198 	if ((uid == lastuid) && lastuname)
2199 		return (lastuname);
2200 
2201 	c = findincache(&names, uid);
2202 	if (c->initted == 0) {
2203 		if ((pwent = getpwuid(uid)) != NULL) {
2204 			SCPYN(&c->name[0], pwent->pw_name);
2205 		} else {
2206 			(void) sprintf(&c->name[0], "%-8u", (int)uid);
2207 		}
2208 		c->initted = 1;
2209 	}
2210 	lastuid = uid;
2211 	lastuname = &c->name[0];
2212 	return (lastuname);
2213 }
2214 
2215 /*
2216  * get name from cache, or group file for a given gid;
2217  * lastgid is set to gid.
2218  */
2219 static char *
2220 getgroup(gid_t gid)
2221 {
2222 	struct group *grent;
2223 	struct cachenode *c;
2224 
2225 	if ((gid == lastgid) && lastgname)
2226 		return (lastgname);
2227 
2228 	c = findincache(&groups, gid);
2229 	if (c->initted == 0) {
2230 		if ((grent = getgrgid(gid)) != NULL) {
2231 			SCPYN(&c->name[0], grent->gr_name);
2232 		} else {
2233 			(void) sprintf(&c->name[0], "%-8u", (int)gid);
2234 		}
2235 		c->initted = 1;
2236 	}
2237 	lastgid = gid;
2238 	lastgname = &c->name[0];
2239 	return (lastgname);
2240 }
2241 
2242 /* return >0 if item pointed by pp2 should appear first */
2243 static int
2244 compar(struct lbuf **pp1, struct lbuf **pp2)
2245 {
2246 	struct lbuf *p1, *p2;
2247 
2248 	p1 = *pp1;
2249 	p2 = *pp2;
2250 	if (dflg == 0) {
2251 /*
2252  * compare two names in ls-command one of which is file
2253  * and the other is a directory;
2254  * this portion is not used for comparing files within
2255  * a directory name of ls-command;
2256  */
2257 		if (p1->lflags&ISARG && p1->ltype == 'd') {
2258 			if (!(p2->lflags&ISARG && p2->ltype == 'd'))
2259 				return (1);
2260 		} else {
2261 			if (p2->lflags&ISARG && p2->ltype == 'd')
2262 				return (-1);
2263 		}
2264 	}
2265 	if (tflg) {
2266 		if (p2->lmtime.tv_sec > p1->lmtime.tv_sec)
2267 			return (rflg);
2268 		else if (p2->lmtime.tv_sec < p1->lmtime.tv_sec)
2269 			return (-rflg);
2270 		/* times are equal to the sec, check nsec */
2271 		if (p2->lmtime.tv_nsec > p1->lmtime.tv_nsec)
2272 			return (rflg);
2273 		else if (p2->lmtime.tv_nsec < p1->lmtime.tv_nsec)
2274 			return (-rflg);
2275 		/* if times are equal, fall through and sort by name */
2276 	} else if (Sflg) {
2277 		/*
2278 		 * The size stored in lsize can be either the
2279 		 * size or the major minor number (in the case of
2280 		 * block and character special devices).  If it's
2281 		 * a major minor number, then the size is considered
2282 		 * to be zero and we want to fall through and sort
2283 		 * by name.  In addition, if the size of p2 is equal
2284 		 * to the size of p1 we want to fall through and
2285 		 * sort by name.
2286 		 */
2287 		off_t	p1size = (p1->ltype == 'b') ||
2288 		    (p1->ltype == 'c') ? 0 : p1->lsize;
2289 		off_t	p2size = (p2->ltype == 'b') ||
2290 		    (p2->ltype == 'c') ? 0 : p2->lsize;
2291 		if (p2size > p1size) {
2292 			return (rflg);
2293 		} else if (p2size < p1size) {
2294 			return (-rflg);
2295 		}
2296 		/* Sizes are equal, fall through and sort by name. */
2297 	}
2298 	return (rflg * strcoll(
2299 	    p1->lflags & ISARG ? p1->ln.namep : p1->ln.lname,
2300 	    p2->lflags&ISARG ? p2->ln.namep : p2->ln.lname));
2301 }
2302 
2303 static void
2304 pprintf(char *s1, char *s2)
2305 {
2306 	csi_pprintf((unsigned char *)s1);
2307 	csi_pprintf((unsigned char *)s2);
2308 }
2309 
2310 static void
2311 csi_pprintf(unsigned char *s)
2312 {
2313 	unsigned char *cp;
2314 	char	c;
2315 	int	i;
2316 	int	c_len;
2317 	int	p_col;
2318 	wchar_t	pcode;
2319 
2320 	if (!qflg && !bflg) {
2321 		for (cp = s; *cp != '\0'; cp++) {
2322 			(void) putchar(*cp);
2323 			curcol++;
2324 		}
2325 		return;
2326 	}
2327 
2328 	for (cp = s; *cp; ) {
2329 		if (isascii(c = *cp)) {
2330 			if (!isprint(c)) {
2331 				if (qflg) {
2332 					c = '?';
2333 				} else {
2334 					curcol += 3;
2335 					(void) putc('\\', stdout);
2336 					c = '0' + ((*cp >> 6) & 07);
2337 					(void) putc(c, stdout);
2338 					c = '0' + ((*cp >> 3) & 07);
2339 					(void) putc(c, stdout);
2340 					c = '0' + (*cp & 07);
2341 				}
2342 			}
2343 			curcol++;
2344 			cp++;
2345 			(void) putc(c, stdout);
2346 			continue;
2347 		}
2348 
2349 		if ((c_len = mbtowc(&pcode, (char *)cp, MB_LEN_MAX)) <= 0) {
2350 			c_len = 1;
2351 			goto not_print;
2352 		}
2353 
2354 		if ((p_col = wcwidth(pcode)) > 0) {
2355 			(void) putwchar(pcode);
2356 			cp += c_len;
2357 			curcol += p_col;
2358 			continue;
2359 		}
2360 
2361 not_print:
2362 		for (i = 0; i < c_len; i++) {
2363 			if (qflg) {
2364 				c = '?';
2365 			} else {
2366 				curcol += 3;
2367 				(void) putc('\\', stdout);
2368 				c = '0' + ((*cp >> 6) & 07);
2369 				(void) putc(c, stdout);
2370 				c = '0' + ((*cp >> 3) & 07);
2371 				(void) putc(c, stdout);
2372 				c = '0' + (*cp & 07);
2373 			}
2374 			curcol++;
2375 			(void) putc(c, stdout);
2376 			cp++;
2377 		}
2378 	}
2379 }
2380 
2381 static int
2382 strcol(unsigned char *s1)
2383 {
2384 	int	w;
2385 	int	w_col;
2386 	int	len;
2387 	wchar_t	wc;
2388 
2389 	w = 0;
2390 	while (*s1) {
2391 		if (isascii(*s1)) {
2392 			w++;
2393 			s1++;
2394 			continue;
2395 		}
2396 
2397 		if ((len = mbtowc(&wc, (char *)s1, MB_LEN_MAX)) <= 0) {
2398 			w++;
2399 			s1++;
2400 			continue;
2401 		}
2402 
2403 		if ((w_col = wcwidth(wc)) < 0)
2404 			w_col = len;
2405 		s1 += len;
2406 		w += w_col;
2407 	}
2408 	return (w);
2409 }
2410 
2411 /*
2412  * Convert an unsigned long long to a string representation and place the
2413  * result in the caller-supplied buffer.
2414  *
2415  * The number provided is a size in bytes.  The number is first
2416  * converted to an integral multiple of 'scale' bytes.  This new
2417  * number is then scaled down until it is small enough to be in a good
2418  * human readable format, i.e.  in the range 0 thru scale-1.  If the
2419  * number used to derive the final number is not a multiple of scale, and
2420  * the final number has only a single significant digit, we compute
2421  * tenths of units to provide a second significant digit.
2422  *
2423  * The value "(unsigned long long)-1" is a special case and is always
2424  * converted to "-1".
2425  *
2426  * A pointer to the caller-supplied buffer is returned.
2427  */
2428 static char *
2429 number_to_scaled_string(
2430 			numbuf_t buf,		/* put the result here */
2431 			unsigned long long number, /* convert this number */
2432 			long scale)
2433 {
2434 	unsigned long long save;
2435 	/* Measurement: kilo, mega, giga, tera, peta, exa */
2436 	char *uom = "KMGTPE";
2437 
2438 	if ((long long)number == (long long)-1) {
2439 		(void) strlcpy(buf, "-1", sizeof (numbuf_t));
2440 		return (buf);
2441 	}
2442 
2443 	save = number;
2444 	number = number / scale;
2445 
2446 	/*
2447 	 * Now we have number as a count of scale units.
2448 	 * If no further scaling is necessary, we round up as appropriate.
2449 	 *
2450 	 * The largest value number could have had entering the routine is
2451 	 * 16 Exabytes, so running off the end of the uom array should
2452 	 * never happen.  We check for that, though, as a guard against
2453 	 * a breakdown elsewhere in the algorithm.
2454 	 */
2455 	if (number < (unsigned long long)scale) {
2456 		if ((save % scale) >= (unsigned long long)(scale / 2)) {
2457 			if (++number == (unsigned long long)scale) {
2458 				uom++;
2459 				number = 1;
2460 			}
2461 		}
2462 	} else {
2463 		while ((number >= (unsigned long long)scale) && (*uom != 'E')) {
2464 			uom++; /* next unit of measurement */
2465 			save = number;
2466 			/*
2467 			 * If we're over half way to the next unit of
2468 			 * 'scale' bytes (which means we should round
2469 			 * up), then adding half of 'scale' prior to
2470 			 * the division will push us into that next
2471 			 * unit of scale when we perform the division
2472 			 */
2473 			number = (number + (scale / 2)) / scale;
2474 		}
2475 	}
2476 
2477 	/* check if we should output a decimal place after the point */
2478 	if ((save / scale) < 10) {
2479 		/* snprintf() will round for us */
2480 		float fnum = (float)save / scale;
2481 		(void) snprintf(buf, sizeof (numbuf_t), "%2.1f%c",
2482 		    fnum, *uom);
2483 	} else {
2484 		(void) snprintf(buf, sizeof (numbuf_t), "%4llu%c",
2485 		    number, *uom);
2486 	}
2487 	return (buf);
2488 }
2489 
2490 /* Get extended system attributes and set the display */
2491 
2492 int
2493 get_sysxattr(char *fname, struct lbuf *rep)
2494 {
2495 	boolean_t	value;
2496 	data_type_t	type;
2497 	int		error;
2498 	char		*name;
2499 	int		i;
2500 
2501 	if ((error = getattrat(AT_FDCWD, XATTR_VIEW_READWRITE, fname,
2502 	    &response)) != 0) {
2503 		perror("ls:getattrat");
2504 		return (error);
2505 	}
2506 
2507 	/*
2508 	 * Allocate 'sacnt' size array to hold extended timestamp
2509 	 * system attributes and initialize the array.
2510 	 */
2511 	rep->extm = xmalloc(sacnt * sizeof (struct attrtm), rep);
2512 	for (i = 0; i < sacnt; i++) {
2513 		rep->extm[i].stm = 0;
2514 		rep->extm[i].nstm = 0;
2515 		rep->extm[i].name = NULL;
2516 	}
2517 	while ((pair = nvlist_next_nvpair(response, pair)) != NULL) {
2518 		name = nvpair_name(pair);
2519 		type = nvpair_type(pair);
2520 		if (type == DATA_TYPE_BOOLEAN_VALUE) {
2521 			error = nvpair_value_boolean_value(pair, &value);
2522 			if (error) {
2523 				(void) fprintf(stderr,
2524 				    gettext("nvpair_value_boolean_value "
2525 				    "failed: error = %d\n"), error);
2526 				continue;
2527 			}
2528 			if (name != NULL)
2529 				set_sysattrb_display(name, value, rep);
2530 			continue;
2531 		} else if (type == DATA_TYPE_UINT64_ARRAY) {
2532 			if (name != NULL)
2533 				set_sysattrtm_display(name, rep);
2534 			continue;
2535 		}
2536 	}
2537 	nvlist_free(response);
2538 	return (0);
2539 }
2540 
2541 /* Set extended system attribute boolean display */
2542 
2543 void
2544 set_sysattrb_display(char *name, boolean_t val, struct lbuf *rep)
2545 {
2546 	f_attr_t	fattr;
2547 	const char	*opt;
2548 	size_t		len;
2549 
2550 	fattr = name_to_attr(name);
2551 	if (fattr != F_ATTR_INVAL && fattr < sacnt) {
2552 		if (vopt) {
2553 			len = strlen(name);
2554 			if (val) {
2555 				rep->exttr[fattr].name = xmalloc(len + 1, rep);
2556 				(void) strlcpy(rep->exttr[fattr].name, name,
2557 				    len + 1);
2558 			} else {
2559 				rep->exttr[fattr].name = xmalloc(len + 3, rep);
2560 				(void) snprintf(rep->exttr[fattr].name, len + 3,
2561 				    "no%s", name);
2562 			}
2563 		} else {
2564 			opt = attr_to_option(fattr);
2565 			if (opt != NULL) {
2566 				len = strlen(opt);
2567 				rep->exttr[fattr].name = xmalloc(len + 1, rep);
2568 				if (val)
2569 					(void) strlcpy(rep->exttr[fattr].name,
2570 					    opt, len + 1);
2571 				else
2572 					(void) strlcpy(rep->exttr[fattr].name,
2573 					    "-", len + 1);
2574 			}
2575 		}
2576 	}
2577 }
2578 
2579 /* Set extended system attribute timestamp display */
2580 
2581 void
2582 set_sysattrtm_display(char *name, struct lbuf *rep)
2583 {
2584 	uint_t		nelem;
2585 	uint64_t	*value;
2586 	int		i;
2587 	size_t		len;
2588 
2589 	if (nvpair_value_uint64_array(pair, &value, &nelem) == 0) {
2590 		if (*value != NULL) {
2591 			len = strlen(name);
2592 			i = 0;
2593 			while (rep->extm[i].stm != 0 && i < sacnt)
2594 				i++;
2595 			rep->extm[i].stm = value[0];
2596 			rep->extm[i].nstm = value[1];
2597 			rep->extm[i].name = xmalloc(len + 1, rep);
2598 			(void) strlcpy(rep->extm[i].name, name, len + 1);
2599 		}
2600 	}
2601 }
2602 
2603 void
2604 format_time(time_t sec, time_t nsec)
2605 {
2606 	const char *fstr = time_fmt_new;
2607 	char fmt_buf[FMTSIZE];
2608 
2609 	if (Eflg) {
2610 		(void) snprintf(fmt_buf, FMTSIZE, fstr, nsec);
2611 		(void) strftime(time_buf, sizeof (time_buf), fmt_buf,
2612 		    localtime(&sec));
2613 		return;
2614 	}
2615 
2616 	if (sec < year || sec > now)
2617 		fstr = time_fmt_old;
2618 
2619 	/* if a custom time was specified, shouldn't be localized */
2620 	(void) strftime(time_buf, sizeof (time_buf),
2621 	    (time_custom == 0) ? dcgettext(NULL, fstr, LC_TIME) : fstr,
2622 	    localtime(&sec));
2623 }
2624 
2625 void
2626 format_attrtime(struct lbuf *p)
2627 {
2628 	int tmattr = 0;
2629 	int i;
2630 
2631 	if (p->extm != NULL) {
2632 		for (i = 0; i < sacnt; i++) {
2633 			if (p->extm[i].name != NULL) {
2634 				tmattr = 1;
2635 				break;
2636 			}
2637 		}
2638 	}
2639 
2640 	if (tmattr) {
2641 		const char *old_save = time_fmt_old;
2642 		const char *new_save = time_fmt_new;
2643 
2644 		/* Eflg always sets format to FORMAT_ISO_FULL */
2645 		if (!Eflg && !time_custom) {
2646 			time_fmt_old = FORMAT_OLD;
2647 			time_fmt_new = FORMAT_NEW;
2648 		}
2649 
2650 		format_time((time_t)p->extm[i].stm, (time_t)p->extm[i].nstm);
2651 
2652 		time_fmt_old = old_save;
2653 		time_fmt_new = new_save;
2654 	}
2655 }
2656 
2657 void
2658 print_time(struct lbuf *p)
2659 {
2660 	const char *old_save = time_fmt_old;
2661 	const char *new_save = time_fmt_new;
2662 
2663 	int i = 0;
2664 
2665 	if (!Eflg) {
2666 		time_fmt_old = FORMAT_LONG;
2667 		time_fmt_new = FORMAT_LONG;
2668 	}
2669 
2670 	new_line();
2671 	format_time(p->lat.tv_sec, p->lat.tv_nsec);
2672 	(void) printf("         timestamp: atime        %s\n", time_buf);
2673 	format_time(p->lct.tv_sec, p->lct.tv_nsec);
2674 	(void) printf("         timestamp: ctime        %s\n", time_buf);
2675 	format_time(p->lmt.tv_sec, p->lmt.tv_nsec);
2676 	(void) printf("         timestamp: mtime        %s\n", time_buf);
2677 	if (p->extm != NULL) {
2678 		while (p->extm[i].nstm != 0 && i < sacnt) {
2679 			format_time(p->extm[i].stm, p->extm[i].nstm);
2680 			if (p->extm[i].name != NULL) {
2681 				(void) printf("         timestamp:"
2682 				    " %s        %s\n",
2683 				    p->extm[i].name, time_buf);
2684 			}
2685 			i++;
2686 		}
2687 	}
2688 
2689 	time_fmt_old = old_save;
2690 	time_fmt_new = new_save;
2691 }
2692 
2693 /*
2694  * Check if color definition applies to entry, returns 1 if yes, 0 if no
2695  */
2696 static int
2697 color_match(const char *fname, mode_t mode, ls_color_t *color)
2698 {
2699 	switch (color->ftype) {
2700 	case LS_PAT:
2701 	{
2702 		size_t	fname_len, sfx_len;
2703 
2704 		fname_len = strlen(fname);
2705 		sfx_len = strlen(color->sfx);
2706 		if (sfx_len > fname_len)
2707 			return (0);
2708 
2709 		if (strcmp(color->sfx, fname + fname_len - sfx_len) == 0)
2710 			return (1);
2711 		else
2712 			return (0);
2713 	}
2714 
2715 	case LS_NORMAL:
2716 		return (1);
2717 
2718 	case LS_FILE:
2719 		return (S_ISREG(mode));
2720 
2721 	case LS_DIR:
2722 		return (S_ISDIR(mode));
2723 
2724 	case LS_LINK:
2725 		return (S_ISLNK(mode));
2726 
2727 	case LS_FIFO:
2728 		return (S_ISFIFO(mode));
2729 
2730 	case LS_SOCK:
2731 		return (S_ISSOCK(mode));
2732 
2733 	case LS_DOOR:
2734 		return (S_ISDOOR(mode));
2735 
2736 	case LS_BLK:
2737 		return (S_ISBLK(mode));
2738 
2739 	case LS_CHR:
2740 		return (S_ISCHR(mode));
2741 
2742 	case LS_PORT:
2743 		return (S_ISPORT(mode));
2744 
2745 	case LS_ORPHAN:
2746 		/* this is tested for by gstat */
2747 		return (0);
2748 
2749 	case LS_SETUID:
2750 		return (!S_ISLNK(mode) && (mode & S_ISUID));
2751 
2752 	case LS_SETGID:
2753 		return (!S_ISLNK(mode) && (mode & S_ISGID));
2754 
2755 	case LS_STICKY_OTHER_WRITABLE:
2756 		return (!S_ISLNK(mode) && (mode & (S_IWOTH|S_ISVTX)));
2757 
2758 	case LS_OTHER_WRITABLE:
2759 		return (!S_ISLNK(mode) && (mode & S_IWOTH));
2760 
2761 	case LS_STICKY:
2762 		return (!S_ISLNK(mode) && (mode & S_ISVTX));
2763 
2764 	case LS_EXEC:
2765 		return (!S_ISLNK(mode) && (mode & (S_IXUSR|S_IXGRP|S_IXOTH)));
2766 	}
2767 
2768 	return (0);
2769 }
2770 
2771 static void
2772 dump_color(ls_color_t *c)
2773 {
2774 	if (c == NULL)
2775 		return;
2776 
2777 	(void) printf("\n\ttype: ");
2778 	switch (c->ftype) {
2779 	case LS_NORMAL:
2780 		(void) printf("LS_NORMAL");
2781 		break;
2782 	case LS_FILE:
2783 		(void) printf("LS_FILE");
2784 		break;
2785 	case LS_EXEC:
2786 		(void) printf("LS_EXEC");
2787 		break;
2788 	case LS_DIR:
2789 		(void) printf("LS_DIR");
2790 		break;
2791 	case LS_LINK:
2792 		(void) printf("LS_LINK");
2793 		break;
2794 
2795 	case LS_FIFO:
2796 		(void) printf("LS_FIFO");
2797 		break;
2798 
2799 	case LS_SOCK:
2800 		(void) printf("LS_SOCK");
2801 		break;
2802 
2803 	case LS_DOOR:
2804 		(void) printf("LS_DOOR");
2805 		break;
2806 
2807 	case LS_BLK:
2808 		(void) printf("LS_BLK");
2809 		break;
2810 
2811 	case LS_CHR:
2812 		(void) printf("LS_CHR");
2813 		break;
2814 
2815 	case LS_PORT:
2816 		(void) printf("LS_PORT");
2817 		break;
2818 
2819 	case LS_STICKY:
2820 		(void) printf("LS_STICKY");
2821 		break;
2822 
2823 	case LS_ORPHAN:
2824 		(void) printf("LS_ORPHAN");
2825 		break;
2826 
2827 	case LS_SETGID:
2828 		(void) printf("LS_SETGID");
2829 		break;
2830 
2831 	case LS_SETUID:
2832 		(void) printf("LS_SETUID");
2833 		break;
2834 
2835 	case LS_OTHER_WRITABLE:
2836 		(void) printf("LS_OTHER_WRITABLE");
2837 		break;
2838 
2839 	case LS_STICKY_OTHER_WRITABLE:
2840 		(void) printf("LS_STICKY_OTHER_WRITABLE");
2841 		break;
2842 
2843 	case LS_PAT:
2844 		(void) printf("LS_PAT\n");
2845 		(void) printf("\tpattern: %s", c->sfx);
2846 		break;
2847 	}
2848 	(void) printf("\n");
2849 	(void) printf("\tattr: %d\n", c->attr);
2850 	(void) printf("\tfg: %d\n", c->fg);
2851 	(void) printf("\tbg: %d\n", c->bg);
2852 	(void) printf("\t");
2853 }
2854 
2855 static ls_color_t *
2856 ls_color_find(const char *fname, mode_t mode)
2857 {
2858 	int i;
2859 
2860 	/*
2861 	 * Colors are sorted from most general lsc_colors[0] to most specific
2862 	 * lsc_colors[lsc_ncolors - 1] by ls_color_init().  Start search with
2863 	 * most specific color rule and work towards most general.
2864 	 */
2865 	for (i = lsc_ncolors - 1; i >= 0; --i)
2866 		if (color_match(fname, mode, &lsc_colors[i]))
2867 			return (&lsc_colors[i]);
2868 
2869 	return (NULL);
2870 }
2871 
2872 static void
2873 ls_tprint(char *str, long int p1, long int p2, long int p3, long int p4,
2874     long int p5, long int p6, long int p7, long int p8, long int p9)
2875 {
2876 	char *s;
2877 
2878 	if (str == NULL)
2879 		return;
2880 
2881 	s = tparm(str, p1, p2, p3, p4, p5, p6, p7, p8, p9);
2882 
2883 	if (s != NULL)
2884 		(void) putp(s);
2885 }
2886 
2887 static void
2888 ls_start_color(ls_color_t *c)
2889 {
2890 	if (c == NULL)
2891 		return;
2892 
2893 	if (lsc_debug)
2894 		lsc_match = c;
2895 
2896 	if (c->attr & LSA_BOLD)
2897 		ls_tprint(lsc_bold, 0, 0, 0, 0, 0, 0, 0, 0, 0);
2898 	if (c->attr & LSA_UNDERSCORE)
2899 		ls_tprint(lsc_underline, 0, 0, 0, 0, 0, 0, 0, 0, 0);
2900 	if (c->attr & LSA_BLINK)
2901 		ls_tprint(lsc_blink, 0, 0, 0, 0, 0, 0, 0, 0, 0);
2902 	if (c->attr & LSA_REVERSE)
2903 		ls_tprint(lsc_reverse, 0, 0, 0, 0, 0, 0, 0, 0, 0);
2904 	if (c->attr & LSA_CONCEALED)
2905 		ls_tprint(lsc_concealed, 0, 0, 0, 0, 0, 0, 0, 0, 0);
2906 	if (c->attr == LSA_NONE)
2907 		ls_tprint(lsc_none, 0, 0, 0, 0, 0, 0, 0, 0, 0);
2908 
2909 	if (c->fg != -1)
2910 		ls_tprint(lsc_setfg, c->fg, 0, 0, 0, 0, 0, 0, 0, 0);
2911 	if (c->bg != -1)
2912 		ls_tprint(lsc_setbg, c->bg, 0, 0, 0, 0, 0, 0, 0, 0);
2913 }
2914 
2915 static void
2916 ls_end_color()
2917 {
2918 	ls_tprint(lsc_none, 0, 0, 0, 0, 0, 0, 0, 0, 0);
2919 	if (lsc_debug)
2920 		dump_color(lsc_match);
2921 }
2922 
2923 static void
2924 new_color_entry(char *colorstr)
2925 {
2926 	static const struct {
2927 		const char	*s;
2928 		ls_cftype_t	stype;
2929 	} type_map[] = {
2930 		{ "no", LS_NORMAL },
2931 		{ "fi", LS_FILE },
2932 		{ "di", LS_DIR },
2933 		{ "ln", LS_LINK },
2934 		{ "pi", LS_FIFO },
2935 		{ "so", LS_SOCK },
2936 		{ "do", LS_DOOR },
2937 		{ "bd", LS_BLK },
2938 		{ "cd", LS_CHR },
2939 		{ "or", LS_ORPHAN },
2940 		{ "su", LS_SETUID },
2941 		{ "sg", LS_SETGID },
2942 		{ "tw", LS_STICKY_OTHER_WRITABLE },
2943 		{ "ow", LS_OTHER_WRITABLE },
2944 		{ "st", LS_STICKY },
2945 		{ "ex", LS_EXEC },
2946 		{ "po", LS_PORT },
2947 		{ NULL, LS_NORMAL }
2948 	};
2949 
2950 	char		*p, *lasts;
2951 	int		i;
2952 	int		color, attr;
2953 
2954 	p = strtok_r(colorstr, "=", &lasts);
2955 	if (p == NULL) {
2956 		colorflg = 0;
2957 		return;
2958 	}
2959 
2960 	if (p[0] == '*') {
2961 		lsc_colors[lsc_ncolors].ftype = LS_PAT;
2962 		/* don't include the * in the suffix */
2963 		if ((lsc_colors[lsc_ncolors].sfx = strdup(p + 1)) == NULL) {
2964 			colorflg = 0;
2965 			return;
2966 		}
2967 	} else {
2968 		lsc_colors[lsc_ncolors].sfx = NULL;
2969 
2970 		for (i = 0; type_map[i].s != NULL; ++i) {
2971 			if (strncmp(type_map[i].s, p, 2) == 0)
2972 				break;
2973 		}
2974 
2975 		/* ignore unknown file types */
2976 		if (type_map[i].s == NULL)
2977 			return;
2978 
2979 		lsc_colors[lsc_ncolors].ftype = type_map[i].stype;
2980 	}
2981 
2982 	attr = LSA_NONE;
2983 	lsc_colors[lsc_ncolors].fg = -1;
2984 	lsc_colors[lsc_ncolors].bg = -1;
2985 	for (p = strtok_r(NULL, ";", &lasts); p != NULL;
2986 	    p = strtok_r(NULL, ";", &lasts)) {
2987 		color = strtol(p, NULL, 10);
2988 
2989 		if (color < 10) {
2990 			switch (color) {
2991 			case 0:
2992 				attr = LSA_NONE;
2993 				continue;
2994 			case 1:
2995 				attr |= LSA_BOLD;
2996 				continue;
2997 			case 4:
2998 				attr |= LSA_UNDERSCORE;
2999 				continue;
3000 			case 5:
3001 				attr |= LSA_BLINK;
3002 				continue;
3003 			case 7:
3004 				attr |= LSA_REVERSE;
3005 				continue;
3006 			case 8:
3007 				attr |= LSA_CONCEALED;
3008 				continue;
3009 			default:
3010 				continue;
3011 			}
3012 		}
3013 
3014 		if (color < 40)
3015 			lsc_colors[lsc_ncolors].fg = color - 30;
3016 		else
3017 			lsc_colors[lsc_ncolors].bg = color - 40;
3018 	}
3019 
3020 	lsc_colors[lsc_ncolors].attr = attr;
3021 	++lsc_ncolors;
3022 }
3023 
3024 static int
3025 ls_color_compare(const void *p1, const void *p2)
3026 {
3027 	const ls_color_t *c1 = (const ls_color_t *)p1;
3028 	const ls_color_t *c2 = (const ls_color_t *)p2;
3029 
3030 	int ret = c1->ftype - c2->ftype;
3031 
3032 	if (ret != 0)
3033 		return (ret);
3034 
3035 	if (c1->ftype != LS_PAT)
3036 		return (ret);
3037 
3038 	return (strcmp(c1->sfx, c2->sfx));
3039 }
3040 
3041 static void
3042 ls_color_init()
3043 {
3044 	static char *default_colorstr = "no=00:fi=00:di=01;34:ln=01;36:po=01;35"
3045 	    ":pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01"
3046 	    ":su=37;41:sg=30;43:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31"
3047 	    ":*.tgz=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.zip=01;31"
3048 	    ":*.z=01;31:*.Z=01;31:*.gz=01;31:*.bz2=01;31:*.deb=01;31"
3049 	    ":*.rpm=01;31:*.jar=01;31:*.jpg=01;35:*.jpeg=01;35:*.gif=01;35"
3050 	    ":*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35"
3051 	    ":*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35"
3052 	    ":*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.avi=01;35:*.fli=01;35"
3053 	    ":*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.flac=01;35"
3054 	    ":*.mp3=01;35:*.mpc=01;35:*.ogg=01;35:*.wav=01;35";
3055 
3056 	char    *colorstr;
3057 	char    *p, *lasts;
3058 	size_t  color_sz;
3059 	int	termret;
3060 	int	i;
3061 
3062 	(void) setupterm(NULL, 1, &termret);
3063 	if (termret != 1)
3064 		return;
3065 
3066 	if ((colorstr = getenv("LS_COLORS")) == NULL)
3067 		colorstr = default_colorstr;
3068 
3069 	/*
3070 	 * Determine the size of lsc_colors.  color_sz can be > lsc_ncolors
3071 	 * if there are invalid entries passed in the string (they are ignored)
3072 	 */
3073 	color_sz = 1;
3074 	for (p = strchr(colorstr, ':'); p != NULL && *p != '\0';
3075 	    p = strchr(++p, ':'))
3076 		++color_sz;
3077 
3078 	lsc_colors = calloc(color_sz, sizeof (ls_color_t));
3079 	if (lsc_colors == NULL) {
3080 		free(colorstr);
3081 		return;
3082 	}
3083 
3084 	for (p = strtok_r(colorstr, ":", &lasts);
3085 	    p != NULL && lsc_ncolors < color_sz;
3086 	    p = strtok_r(NULL, ":", &lasts))
3087 		new_color_entry(p);
3088 
3089 	qsort((void *)lsc_colors, lsc_ncolors, sizeof (ls_color_t),
3090 	    ls_color_compare);
3091 
3092 	for (i = 0; i < lsc_ncolors; ++i)
3093 		if (lsc_colors[i].ftype == LS_ORPHAN) {
3094 			lsc_orphan = &lsc_colors[i];
3095 			break;
3096 		}
3097 
3098 	if ((lsc_bold = tigetstr("bold")) == (char *)-1)
3099 		lsc_bold = NULL;
3100 
3101 	if ((lsc_underline = tigetstr("smul")) == (char *)-1)
3102 		lsc_underline = NULL;
3103 
3104 	if ((lsc_blink = tigetstr("blink")) == (char *)-1)
3105 		lsc_blink = NULL;
3106 
3107 	if ((lsc_reverse = tigetstr("rev")) == (char *)-1)
3108 		lsc_reverse = NULL;
3109 
3110 	if ((lsc_concealed = tigetstr("prot")) == (char *)-1)
3111 		lsc_concealed = NULL;
3112 
3113 	if ((lsc_none = tigetstr("sgr0")) == (char *)-1)
3114 		lsc_none = NULL;
3115 
3116 	if ((lsc_setfg = tigetstr("setaf")) == (char *)-1)
3117 		lsc_setfg = NULL;
3118 
3119 	if ((lsc_setbg = tigetstr("setab")) == (char *)-1)
3120 		lsc_setbg = NULL;
3121 
3122 	if (getenv("_LS_COLOR_DEBUG") != NULL) {
3123 		int i;
3124 
3125 		lsc_debug = 1;
3126 		for (i = 0; i < lsc_ncolors; ++i)
3127 			dump_color(&lsc_colors[i]);
3128 	}
3129 }
3130 
3131 /* Free extended system attribute lists */
3132 
3133 void
3134 free_sysattr(struct lbuf *p)
3135 {
3136 	int i;
3137 
3138 	if (p->exttr != NULL) {
3139 		for (i = 0; i < sacnt; i++) {
3140 			if (p->exttr[i].name != NULL)
3141 				free(p->exttr[i].name);
3142 		}
3143 		free(p->exttr);
3144 	}
3145 	if (p->extm != NULL) {
3146 		for (i = 0; i < sacnt; i++) {
3147 			if (p->extm[i].name != NULL)
3148 				free(p->extm[i].name);
3149 		}
3150 		free(p->extm);
3151 	}
3152 }
3153 
3154 /* Allocate extended system attribute list */
3155 
3156 void *
3157 xmalloc(size_t size, struct lbuf *p)
3158 {
3159 	if ((p = malloc(size)) == NULL) {
3160 		perror("ls");
3161 		free_sysattr(p);
3162 		nvlist_free(response);
3163 		exit(2);
3164 	}
3165 	return (p);
3166 }
3167