xref: /titanic_52/usr/src/cmd/ls/ls.c (revision 85e6b6747d07050e01ec91acef2453655821f9ab)
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  * Copyright (c) 2012, Joyent, Inc. All rights reserved.
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 static int		noflist = 0;
314 
315 static uid_t		lastuid	= (uid_t)-1;
316 static gid_t		lastgid = (gid_t)-1;
317 static char		*lastuname = NULL;
318 static char		*lastgname = NULL;
319 
320 /* statreq > 0 if any of sflg, (n)lflg, tflg, Sflg, colorflg are on */
321 static int		statreq;
322 
323 static uint64_t		block_size = 1;
324 static char		*dotp = ".";
325 
326 static u_longlong_t 	tblocks; /* number of blocks of files in a directory */
327 static time_t		year, now;
328 
329 static int		num_cols = 80;
330 static int		colwidth;
331 static int		filewidth;
332 static int		fixedwidth;
333 static int		nomocore;
334 static int		curcol;
335 
336 static struct	winsize	win;
337 
338 /* if time_fmt_new is left NULL, time_fmt_old is used for all times */
339 static const char	*time_fmt_old = FORMAT_OLD;	/* non-recent files */
340 static const char	*time_fmt_new = FORMAT_NEW;	/* recent files */
341 static int		time_custom;	/* != 0 if a custom format */
342 static char	time_buf[FMTSIZE];	/* array to hold day and time */
343 
344 static int		lsc_debug;
345 static ls_color_t	*lsc_match;
346 static ls_color_t	*lsc_colors;
347 static size_t		lsc_ncolors;
348 static char		*lsc_bold;
349 static char		*lsc_underline;
350 static char		*lsc_blink;
351 static char		*lsc_reverse;
352 static char		*lsc_concealed;
353 static char		*lsc_none;
354 static char		*lsc_setfg;
355 static char		*lsc_setbg;
356 static ls_color_t	*lsc_orphan;
357 
358 #define	NOTWORKINGDIR(d, l)	(((l) < 2) || \
359 				    (strcmp((d) + (l) - 2, "/.") != 0))
360 
361 #define	NOTPARENTDIR(d, l)	(((l) < 3) || \
362 				    (strcmp((d) + (l) - 3, "/..") != 0))
363 /* Extended system attributes support */
364 static int get_sysxattr(char *, struct lbuf *);
365 static void set_sysattrb_display(char *, boolean_t, struct lbuf *);
366 static void set_sysattrtm_display(char *, struct lbuf *);
367 static void format_time(time_t, time_t);
368 static void print_time(struct lbuf *);
369 static void format_attrtime(struct lbuf *);
370 static void *xmalloc(size_t, struct lbuf *);
371 static void free_sysattr(struct lbuf *);
372 static nvpair_t *pair;
373 static nvlist_t	*response;
374 static int acl_err;
375 
376 const struct option long_options[] = {
377 	{ "all", no_argument, NULL, 'a' },
378 	{ "almost-all", no_argument, NULL, 'A' },
379 	{ "escape", no_argument, NULL, 'b' },
380 	{ "classify", no_argument, NULL, 'F' },
381 	{ "human-readable", no_argument, NULL, 'h' },
382 	{ "dereference", no_argument, NULL, 'L' },
383 	{ "dereference-command-line", no_argument, NULL, 'H' },
384 	{ "ignore-backups", no_argument, NULL, 'B' },
385 	{ "inode", no_argument, NULL, 'i' },
386 	{ "numeric-uid-gid", no_argument, NULL, 'n' },
387 	{ "no-group", no_argument, NULL, 'o' },
388 	{ "hide-control-chars", no_argument, NULL, 'q' },
389 	{ "reverse", no_argument, NULL, 'r' },
390 	{ "recursive", no_argument, NULL, 'R' },
391 	{ "size", no_argument, NULL, 's' },
392 	{ "width", required_argument, NULL, 'w' },
393 
394 	/* no short options for these */
395 	{ "block-size", required_argument, NULL, 0 },
396 	{ "full-time", no_argument, NULL, 0 },
397 	{ "si", no_argument, NULL, 0 },
398 	{ "color", optional_argument, NULL, 0 },
399 	{ "colour", optional_argument, NULL, 0},
400 	{ "file-type", no_argument, NULL, 0 },
401 	{ "time-style", required_argument, NULL, 0 },
402 
403 	{0, 0, 0, 0}
404 };
405 
406 int
407 main(int argc, char *argv[])
408 {
409 	int		c;
410 	int		i;
411 	int		width;
412 	int		amino = 0;
413 	int		opterr = 0;
414 	int		option_index = 0;
415 	struct lbuf	*ep;
416 	struct lbuf	lb;
417 	struct ditem	*myinfo = NULL;
418 
419 	(void) setlocale(LC_ALL, "");
420 #if !defined(TEXT_DOMAIN)	/* Should be defined by cc -D */
421 #define	TEXT_DOMAIN "SYS_TEST"	/* Use this only if it weren't */
422 #endif
423 	(void) textdomain(TEXT_DOMAIN);
424 #ifdef STANDALONE
425 	if (argv[0][0] == '\0')
426 		argc = getargv("ls", &argv, 0);
427 #endif
428 
429 	lb.lmtime.tv_sec = time(NULL);
430 	lb.lmtime.tv_nsec = 0;
431 	year = lb.lmtime.tv_sec - 6L*30L*24L*60L*60L; /* 6 months ago */
432 	now = lb.lmtime.tv_sec + 60;
433 	if (isatty(1)) {
434 		Cflg = 1;
435 		mflg = 0;
436 	}
437 
438 	while ((c = getopt_long(argc, argv,
439 	    "+aAbBcCdeEfFghHiklLmnopqrRsStuUw:x1@vV/:%:", long_options,
440 	    &option_index)) != -1)
441 		switch (c) {
442 		case 0:
443 			/* non-short options */
444 			if (strcmp(long_options[option_index].name,
445 			    "color") == 0 ||
446 			    strcmp(long_options[option_index].name,
447 			    "colour") == 0) {
448 				if (optarg == NULL ||
449 				    strcmp(optarg, "always") == 0 ||
450 				    strcmp(optarg, "yes") == 0 ||
451 				    strcmp(optarg, "force") == 0) {
452 					colorflg++;
453 					statreq++;
454 					continue;
455 				}
456 
457 				if (strcmp(optarg, "auto") == 0 ||
458 				    strcmp(optarg, "tty") == 0 ||
459 				    strcmp(optarg, "if-tty") == 0) {
460 					if (isatty(1) == 1) {
461 						colorflg++;
462 						statreq++;
463 					}
464 					continue;
465 				}
466 
467 				if (strcmp(optarg, "never") == 0 ||
468 				    strcmp(optarg, "no") == 0 ||
469 				    strcmp(optarg, "none") == 0) {
470 					colorflg = 0;
471 					continue;
472 				}
473 				(void) fprintf(stderr,
474 				    gettext("Invalid argument '%s' for "
475 				    "--color\n"), optarg);
476 				++opterr;
477 				continue;
478 			}
479 
480 			if (strcmp(long_options[option_index].name,
481 			    "si") == 0) {
482 				hflg++;
483 				hscale = 1000;
484 				continue;
485 			}
486 
487 			if (strcmp(long_options[option_index].name,
488 			    "block-size") == 0) {
489 				size_t scale_len = strlen(optarg);
490 				uint64_t scale = 1;
491 				uint64_t kilo = 1024;
492 				char scale_c;
493 
494 				if (scale_len == 0) {
495 					(void) fprintf(stderr, gettext(
496 					    "Invalid block size \'%s\'\n"),
497 					    optarg);
498 					exit(1);
499 				}
500 
501 				scale_c = optarg[scale_len - 1];
502 				if (scale_c == 'B') {
503 					/* need at least digit, scale, B */
504 					if (scale_len < 3) {
505 						(void) fprintf(stderr, gettext(
506 						    "Invalid block size "
507 						    "\'%s\'\n"), optarg);
508 						exit(1);
509 					}
510 					kilo = 1000;
511 					scale_c = optarg[scale_len - 2];
512 					if (isdigit(scale_c)) {
513 						(void) fprintf(stderr,
514 						    gettext("Invalid block size"
515 						    " \'%s\'\n"), optarg);
516 						exit(1);
517 					}
518 					/*
519 					 * make optarg[scale_len - 1] point to
520 					 * the scale factor
521 					 */
522 					--scale_len;
523 				}
524 
525 				switch (scale_c) {
526 				case 'y':
527 				case 'Y':
528 					scale *= kilo;
529 					/*FALLTHROUGH*/
530 				case 'Z':
531 				case 'z':
532 					scale *= kilo;
533 					/*FALLTHROUGH*/
534 				case 'E':
535 				case 'e':
536 					scale *= kilo;
537 					/*FALLTHROUGH*/
538 				case 'P':
539 				case 'p':
540 					scale *= kilo;
541 					/*FALLTHROUGH*/
542 				case 'T':
543 				case 't':
544 					scale *= kilo;
545 					/*FALLTHROUGH*/
546 				case 'G':
547 				case 'g':
548 					scale *= kilo;
549 					/*FALLTHROUGH*/
550 				case 'M':
551 				case 'm':
552 					scale *= kilo;
553 					/*FALLTHROUGH*/
554 				case 'K':
555 				case 'k':
556 					scale *= kilo;
557 					break;
558 				default:
559 					if (!isdigit(scale_c)) {
560 						(void) fprintf(stderr,
561 						    gettext("Invalid character "
562 						    "following block size in "
563 						    "\'%s\'\n"), optarg);
564 						exit(1);
565 					}
566 				}
567 
568 				/* NULL out scale constant if present */
569 				if (scale > 1 && !isdigit(scale_c))
570 					optarg[scale_len - 1] = '\0';
571 
572 				/* Based on testing, this is what GNU ls does */
573 				block_size = strtoll(optarg, NULL, 0) * scale;
574 				if (block_size < 1) {
575 					(void) fprintf(stderr,
576 					    gettext("Invalid block size "
577 					    "\'%s\'\n"), optarg);
578 					exit(1);
579 				}
580 				continue;
581 			}
582 
583 			if (strcmp(long_options[option_index].name,
584 			    "file-type") == 0) {
585 				file_typeflg++;
586 				Fflg++;
587 				statreq++;
588 				continue;
589 			}
590 
591 
592 			if (strcmp(long_options[option_index].name,
593 			    "full-time") == 0) {
594 				Eflg++;
595 				statreq++;
596 				eflg = 0;
597 				time_fmt_old = FORMAT_ISO_FULL;
598 				time_fmt_new = FORMAT_ISO_FULL;
599 				continue;
600 			}
601 
602 			if (strcmp(long_options[option_index].name,
603 			    "time-style") == 0) {
604 				/* like -E, but doesn't imply -l */
605 				if (strcmp(optarg, "full-iso") == 0) {
606 					Eflg++;
607 					statreq++;
608 					eflg = 0;
609 					time_fmt_old = FORMAT_ISO_FULL;
610 					time_fmt_new = FORMAT_ISO_FULL;
611 					continue;
612 				}
613 				if (strcmp(optarg, "long-iso") == 0) {
614 					statreq++;
615 					Eflg = 0;
616 					eflg = 0;
617 					time_fmt_old = FORMAT_ISO_LONG;
618 					time_fmt_new = FORMAT_ISO_LONG;
619 					continue;
620 				}
621 				if (strcmp(optarg, "iso") == 0) {
622 					statreq++;
623 					Eflg = 0;
624 					eflg = 0;
625 					time_fmt_old = FORMAT_ISO_OLD;
626 					time_fmt_new = FORMAT_ISO_NEW;
627 					continue;
628 				}
629 				/* should be the default */
630 				if (strcmp(optarg, "locale") == 0) {
631 					time_fmt_old = FORMAT_OLD;
632 					time_fmt_new = FORMAT_NEW;
633 					continue;
634 				}
635 				if (optarg[0] == '+') {
636 					char	*told, *tnew;
637 					char	*p;
638 					size_t	timelen = strlen(optarg);
639 
640 					p = strchr(optarg, '\n');
641 					if (p != NULL)
642 						*p++ = '\0';
643 
644 					/*
645 					 * Time format requires a leading and
646 					 * trailing space
647 					 * Add room for 3 spaces + 2 nulls
648 					 * The + in optarg is replaced with
649 					 * a space.
650 					 */
651 					timelen += 2 + 3;
652 					told = malloc(timelen);
653 					if (told == NULL) {
654 						perror("ls");
655 						exit(2);
656 					}
657 
658 					(void) memset(told, 0, timelen);
659 					told[0] = ' ';
660 					(void) strlcat(told, &optarg[1],
661 					    timelen);
662 					(void) strlcat(told, " ", timelen);
663 
664 					if (p != NULL) {
665 						size_t tnew_len;
666 
667 						tnew = told + strlen(told) + 1;
668 						tnew_len = timelen -
669 						    strlen(told) - 1;
670 
671 						tnew[0] = ' ';
672 						(void) strlcat(tnew, p,
673 						    tnew_len);
674 						(void) strlcat(tnew, " ",
675 						    tnew_len);
676 						time_fmt_new =
677 						    (const char *)tnew;
678 					} else {
679 						time_fmt_new =
680 						    (const char *)told;
681 					}
682 
683 					time_fmt_old = (const char *)told;
684 					time_custom = 1;
685 					continue;
686 				}
687 				continue;
688 			}
689 
690 			continue;
691 
692 		case 'a':
693 			aflg++;
694 			continue;
695 		case 'A':
696 			Aflg++;
697 			continue;
698 		case 'b':
699 			bflg = 1;
700 			qflg = 0;
701 			continue;
702 		case 'B':
703 			Bflg = 1;
704 			continue;
705 		case 'c':
706 			uflg = 0;
707 			atm = 0;
708 			ctm = 0;
709 			mtm = 0;
710 			crtm = 0;
711 			cflg++;
712 			continue;
713 		case 'C':
714 			Cflg = 1;
715 			mflg = 0;
716 #ifdef XPG4
717 			lflg = 0;
718 #endif
719 			continue;
720 		case 'd':
721 			dflg++;
722 			continue;
723 		case 'e':
724 			eflg++;
725 			lflg++;
726 			statreq++;
727 			Eflg = 0;
728 			time_fmt_old = FORMAT_LONG;
729 			time_fmt_new = FORMAT_LONG;
730 			continue;
731 		case 'E':
732 			Eflg++;
733 			lflg++;
734 			statreq++;
735 			eflg = 0;
736 			time_fmt_old = FORMAT_ISO_FULL;
737 			time_fmt_new = FORMAT_ISO_FULL;
738 			continue;
739 		case 'f':
740 			fflg++;
741 			continue;
742 		case 'F':
743 			Fflg++;
744 			statreq++;
745 			continue;
746 		case 'g':
747 			gflg++;
748 			lflg++;
749 			statreq++;
750 			continue;
751 		case 'h':
752 			hflg++;
753 			hscale = 1024;
754 			continue;
755 		case 'H':
756 			Hflg++;
757 			/* -H and -L are mutually exclusive */
758 			Lflg = 0;
759 			continue;
760 		case 'i':
761 			iflg++;
762 			continue;
763 		case 'k':
764 			block_size = 1024;
765 			continue;
766 		case 'l':
767 			lflg++;
768 			statreq++;
769 			Cflg = 0;
770 			xflg = 0;
771 			mflg = 0;
772 			atflg = 0;
773 			continue;
774 		case 'L':
775 			Lflg++;
776 			/* -H and -L are mutually exclusive */
777 			Hflg = 0;
778 			continue;
779 		case 'm':
780 			Cflg = 0;
781 			mflg = 1;
782 #ifdef XPG4
783 			lflg = 0;
784 #endif
785 			continue;
786 		case 'n':
787 			nflg++;
788 			lflg++;
789 			statreq++;
790 			Cflg = 0;
791 			xflg = 0;
792 			mflg = 0;
793 			atflg = 0;
794 			continue;
795 		case 'o':
796 			oflg++;
797 			lflg++;
798 			statreq++;
799 			continue;
800 		case 'p':
801 			pflg++;
802 			statreq++;
803 			continue;
804 		case 'q':
805 			qflg = 1;
806 			bflg = 0;
807 			continue;
808 		case 'r':
809 			rflg = -1;
810 			continue;
811 		case 'R':
812 			Rflg++;
813 			statreq++;
814 			continue;
815 		case 's':
816 			sflg++;
817 			statreq++;
818 			continue;
819 		case 'S':
820 			tflg = 0;
821 			Uflg = 0;
822 			Sflg++;
823 			statreq++;
824 			continue;
825 		case 't':
826 			Sflg = 0;
827 			Uflg = 0;
828 			tflg++;
829 			statreq++;
830 			continue;
831 		case 'U':
832 			Sflg = 0;
833 			tflg = 0;
834 			Uflg++;
835 			continue;
836 		case 'u':
837 			cflg = 0;
838 			atm = 0;
839 			ctm = 0;
840 			mtm = 0;
841 			crtm = 0;
842 			uflg++;
843 			continue;
844 		case 'V':
845 			Vflg++;
846 			/*FALLTHROUGH*/
847 		case 'v':
848 			vflg++;
849 #if !defined(XPG4)
850 			if (lflg)
851 				continue;
852 #endif
853 			lflg++;
854 			statreq++;
855 			Cflg = 0;
856 			xflg = 0;
857 			mflg = 0;
858 			continue;
859 		case 'w':
860 			wflg++;
861 			num_cols = atoi(optarg);
862 			continue;
863 		case 'x':
864 			xflg = 1;
865 			Cflg = 1;
866 			mflg = 0;
867 #ifdef XPG4
868 			lflg = 0;
869 #endif
870 			continue;
871 		case '1':
872 			Cflg = 0;
873 			continue;
874 		case '@':
875 #if !defined(XPG4)
876 			/*
877 			 * -l has precedence over -@
878 			 */
879 			if (lflg)
880 				continue;
881 #endif
882 			atflg++;
883 			lflg++;
884 			statreq++;
885 			Cflg = 0;
886 			xflg = 0;
887 			mflg = 0;
888 			continue;
889 		case '/':
890 			saflg++;
891 			if (optarg != NULL) {
892 				if (strcmp(optarg, "c") == 0) {
893 					copt++;
894 					vopt = 0;
895 				} else if (strcmp(optarg, "v") == 0) {
896 					vopt++;
897 					copt = 0;
898 				} else
899 					opterr++;
900 			} else
901 				opterr++;
902 			lflg++;
903 			statreq++;
904 			Cflg = 0;
905 			xflg = 0;
906 			mflg = 0;
907 			continue;
908 		case '%':
909 			tmflg++;
910 			if (optarg != NULL) {
911 				if (strcmp(optarg, "ctime") == 0) {
912 					ctm++;
913 					atm = 0;
914 					mtm = 0;
915 					crtm = 0;
916 				} else if (strcmp(optarg, "atime") == 0) {
917 					atm++;
918 					ctm = 0;
919 					mtm = 0;
920 					crtm = 0;
921 					uflg = 0;
922 					cflg = 0;
923 				} else if (strcmp(optarg, "mtime") == 0) {
924 					mtm++;
925 					atm = 0;
926 					ctm = 0;
927 					crtm = 0;
928 					uflg = 0;
929 					cflg = 0;
930 				} else if (strcmp(optarg, "crtime") == 0) {
931 					crtm++;
932 					atm = 0;
933 					ctm = 0;
934 					mtm = 0;
935 					uflg = 0;
936 					cflg = 0;
937 				} else if (strcmp(optarg, "all") == 0) {
938 					alltm++;
939 					atm = 0;
940 					ctm = 0;
941 					mtm = 0;
942 					crtm = 0;
943 				} else
944 					opterr++;
945 			} else
946 				opterr++;
947 
948 			Sflg = 0;
949 			statreq++;
950 			mflg = 0;
951 			continue;
952 		case '?':
953 			opterr++;
954 			continue;
955 		}
956 
957 	if (opterr) {
958 		(void) fprintf(stderr, gettext(
959 		    "usage: ls -aAbBcCdeEfFghHiklLmnopqrRsStuUwxvV1@/%[c | v]"
960 		    "%%[atime | crtime | ctime | mtime | all]"
961 		    " [files]\n"));
962 		exit(2);
963 	}
964 
965 	if (fflg) {
966 		aflg++;
967 		lflg = 0;
968 		sflg = 0;
969 		tflg = 0;
970 		Sflg = 0;
971 		statreq = 0;
972 	}
973 
974 	fixedwidth = 2;
975 	if (pflg || Fflg)
976 		fixedwidth++;
977 	if (iflg)
978 		fixedwidth += 11;
979 	if (sflg)
980 		fixedwidth += 5;
981 
982 	if (lflg) {
983 		if (!gflg && !oflg)
984 			gflg = oflg = 1;
985 		else
986 		if (gflg && oflg)
987 			gflg = oflg = 0;
988 		Cflg = mflg = 0;
989 	}
990 
991 	if (!wflg && (Cflg || mflg)) {
992 		char *clptr;
993 		if ((clptr = getenv("COLUMNS")) != NULL)
994 			num_cols = atoi(clptr);
995 #ifdef TERMINFO
996 		else {
997 			if (ioctl(1, TIOCGWINSZ, &win) != -1)
998 				num_cols = (win.ws_col == 0 ? 80 : win.ws_col);
999 		}
1000 #endif
1001 	}
1002 
1003 	/*
1004 	 * When certain options (-f, or -U and -1, and not -l, etc.) are
1005 	 * specified, don't cache each dirent as it's read.  This 'noflist'
1006 	 * option is set when there's no need to cache those dirents; instead,
1007 	 * print them out as they're read.
1008 	 */
1009 	if ((Uflg || fflg) && !Cflg && !lflg && !iflg && statreq == 0)
1010 		noflist = 1;
1011 
1012 	if (num_cols < 20 || num_cols > 1000)
1013 		/* assume it is an error */
1014 		num_cols = 80;
1015 
1016 	/* allocate space for flist and the associated	*/
1017 	/* data structures (lbufs)			*/
1018 	maxfils = quantn;
1019 	if (((flist = malloc(maxfils * sizeof (struct lbuf *))) == NULL) ||
1020 	    ((nxtlbf = malloc(quantn * sizeof (struct lbuf))) == NULL)) {
1021 		perror("ls");
1022 		exit(2);
1023 	}
1024 	if ((amino = (argc-optind)) == 0) {
1025 					/*
1026 					 * case when no names are given
1027 					 * in ls-command and current
1028 					 * directory is to be used
1029 					 */
1030 		argv[optind] = dotp;
1031 	}
1032 
1033 	if (colorflg)
1034 		ls_color_init();
1035 
1036 	for (i = 0; i < (amino ? amino : 1); i++) {
1037 
1038 		/*
1039 		 * If we are recursing, we need to make sure we don't
1040 		 * get into an endless loop.  To keep track of the inodes
1041 		 * (actually, just the directories) visited, we
1042 		 * maintain a directory ancestry list for a file
1043 		 * hierarchy.  As we go deeper into the hierarchy,
1044 		 * a parent directory passes its directory list
1045 		 * info (device id, inode number, and a pointer to
1046 		 * its parent) to each of its children.  As we
1047 		 * process a child that is a directory, we save
1048 		 * its own personal directory list info.  We then
1049 		 * check to see if the child has already been
1050 		 * processed by comparing its device id and inode
1051 		 * number from its own personal directory list info
1052 		 * to that of each of its ancestors.  If there is a
1053 		 * match, then we know we've detected a cycle.
1054 		 */
1055 		if (Rflg) {
1056 			/*
1057 			 * This is the first parent in this lineage
1058 			 * (first in a directory hierarchy), so
1059 			 * this parent's parent doesn't exist.  We
1060 			 * only initialize myinfo when we are
1061 			 * recursing, otherwise it's not used.
1062 			 */
1063 			if ((myinfo = (struct ditem *)malloc(
1064 			    sizeof (struct ditem))) == NULL) {
1065 				perror("ls");
1066 				exit(2);
1067 			} else {
1068 				myinfo->dev = 0;
1069 				myinfo->ino = 0;
1070 				myinfo->parent = NULL;
1071 			}
1072 		}
1073 
1074 		if (Cflg || mflg) {
1075 			width = strcol((unsigned char *)argv[optind]);
1076 			if (width > filewidth)
1077 				filewidth = width;
1078 		}
1079 		if ((ep = gstat((*argv[optind] ? argv[optind] : dotp),
1080 		    1, myinfo)) == NULL) {
1081 			if (nomocore)
1082 				exit(2);
1083 			err = 2;
1084 			optind++;
1085 			continue;
1086 		}
1087 		ep->ln.namep = (*argv[optind] ? argv[optind] : dotp);
1088 		ep->lflags |= ISARG;
1089 		optind++;
1090 		nargs++;	/* count good arguments stored in flist */
1091 		if (acl_err)
1092 			err = 2;
1093 	}
1094 	colwidth = fixedwidth + filewidth;
1095 	if (!Uflg)
1096 		qsort(flist, (unsigned)nargs, sizeof (struct lbuf *),
1097 		    (int (*)(const void *, const void *))compar);
1098 	for (i = 0; i < nargs; i++) {
1099 		if ((flist[i]->ltype == 'd' && dflg == 0) || fflg)
1100 			break;
1101 	}
1102 
1103 	pem(&flist[0], &flist[i], 0);
1104 	for (; i < nargs; i++) {
1105 		pdirectory(flist[i]->ln.namep, Rflg ||
1106 		    (amino > 1), nargs, 0, flist[i]->ancinfo);
1107 		if (nomocore)
1108 			exit(2);
1109 		/* -R: print subdirectories found */
1110 		while (dfirst || cdfirst) {
1111 			/* Place direct subdirs on front in right order */
1112 			while (cdfirst) {
1113 				/* reverse cdfirst onto front of dfirst */
1114 				dtemp = cdfirst;
1115 				cdfirst = cdfirst -> dc_next;
1116 				dtemp -> dc_next = dfirst;
1117 				dfirst = dtemp;
1118 			}
1119 			/* take off first dir on dfirst & print it */
1120 			dtemp = dfirst;
1121 			dfirst = dfirst->dc_next;
1122 			pdirectory(dtemp->dc_name, 1, nargs,
1123 			    dtemp->cycle_detected, dtemp->myancinfo);
1124 			if (nomocore)
1125 				exit(2);
1126 			free(dtemp->dc_name);
1127 			free(dtemp);
1128 		}
1129 	}
1130 
1131 	return (err);
1132 }
1133 
1134 /*
1135  * pdirectory: print the directory name, labelling it if title is
1136  * nonzero, using lp as the place to start reading in the dir.
1137  */
1138 static void
1139 pdirectory(char *name, int title, int lp, int cdetect, struct ditem *myinfo)
1140 {
1141 	struct dchain *dp;
1142 	struct lbuf *ap;
1143 	char *pname;
1144 	int j;
1145 
1146 	filewidth = 0;
1147 	curdir = name;
1148 	if (title) {
1149 		if (!first)
1150 			(void) putc('\n', stdout);
1151 		pprintf(name, ":");
1152 		new_line();
1153 	}
1154 	/*
1155 	 * If there was a cycle detected, then notify and don't report
1156 	 * further.
1157 	 */
1158 	if (cdetect) {
1159 		if (lflg || sflg) {
1160 			curcol += printf(gettext("total %d"), 0);
1161 			new_line();
1162 		}
1163 		(void) fprintf(stderr, gettext(
1164 		    "ls: cycle detected for %s\n"), name);
1165 		return;
1166 	}
1167 
1168 	nfiles = lp;
1169 	rddir(name, myinfo);
1170 	if (nomocore || noflist)
1171 		return;
1172 	if (fflg == 0 && Uflg == 0)
1173 		qsort(&flist[lp], (unsigned)(nfiles - lp),
1174 		    sizeof (struct lbuf *),
1175 		    (int (*)(const void *, const void *))compar);
1176 	if (Rflg) {
1177 		for (j = nfiles - 1; j >= lp; j--) {
1178 			ap = flist[j];
1179 			if (ap->ltype == 'd' && strcmp(ap->ln.lname, ".") &&
1180 			    strcmp(ap->ln.lname, "..")) {
1181 				dp = malloc(sizeof (struct dchain));
1182 				if (dp == NULL) {
1183 					perror("ls");
1184 					exit(2);
1185 				}
1186 				pname = makename(curdir, ap->ln.lname);
1187 				if ((dp->dc_name = strdup(pname)) == NULL) {
1188 					perror("ls");
1189 					exit(2);
1190 				}
1191 				dp->cycle_detected = ap->cycle;
1192 				dp->myancinfo = ap->ancinfo;
1193 				dp->dc_next = dfirst;
1194 				dfirst = dp;
1195 			}
1196 		}
1197 	}
1198 	if (lflg || sflg) {
1199 		curcol += printf(gettext("total %llu"), tblocks);
1200 		new_line();
1201 	}
1202 	pem(&flist[lp], &flist[nfiles], lflg||sflg);
1203 }
1204 
1205 /*
1206  * pem: print 'em. Print a list of files (e.g. a directory) bounded
1207  * by slp and lp.
1208  */
1209 static void
1210 pem(struct lbuf **slp, struct lbuf **lp, int tot_flag)
1211 {
1212 	long row, nrows, i;
1213 	int col, ncols = 1;
1214 	struct lbuf **ep;
1215 
1216 	if (Cflg || mflg) {
1217 		if (colwidth <= num_cols) {
1218 			ncols = num_cols / colwidth;
1219 		}
1220 	}
1221 
1222 	if (ncols == 1 || mflg || xflg || !Cflg) {
1223 		for (ep = slp; ep < lp; ep++)
1224 			pentry(*ep);
1225 		new_line();
1226 		return;
1227 	}
1228 	/* otherwise print -C columns */
1229 	if (tot_flag) {
1230 		slp--;
1231 		row = 1;
1232 	}
1233 	else
1234 		row = 0;
1235 
1236 	nrows = (lp - slp - 1) / ncols + 1;
1237 	for (i = 0; i < nrows; i++, row++) {
1238 		for (col = 0; col < ncols; col++) {
1239 			ep = slp + (nrows * col) + row;
1240 			if (ep < lp)
1241 				pentry(*ep);
1242 		}
1243 		new_line();
1244 	}
1245 }
1246 
1247 /*
1248  * print one output entry;
1249  * if uid/gid is not found in the appropriate
1250  * file(passwd/group), then print uid/gid instead of
1251  * user/group name;
1252  */
1253 static void
1254 pentry(struct lbuf *ap)
1255 {
1256 	struct lbuf *p;
1257 	numbuf_t hbuf;
1258 	char *dmark = "";	/* Used if -p or -F option active */
1259 	char *cp;
1260 	char *str;
1261 
1262 	if (noflist) {
1263 		(void) printf("%s\n", ap->ln.lname);
1264 		return;
1265 	}
1266 
1267 	p = ap;
1268 	column();
1269 	if (iflg) {
1270 		if (mflg && !lflg)
1271 			curcol += printf("%llu ", (long long)p->lnum);
1272 		else
1273 			curcol += printf("%10llu ", (long long)p->lnum);
1274 	}
1275 	if (sflg) {
1276 		curcol += printf((mflg && !lflg) ? "%lld " :
1277 		    (p->lblocks < 10000) ? "%4lld " : "%lld ",
1278 		    (p->ltype != 'b' && p->ltype != 'c') ?
1279 		    p->lblocks : 0LL);
1280 	}
1281 	if (lflg) {
1282 		(void) putchar(p->ltype);
1283 		curcol++;
1284 		pmode(p->lflags);
1285 
1286 		/* ACL: additional access mode flag */
1287 		(void) putchar(p->acl);
1288 		curcol++;
1289 
1290 		curcol += printf("%3lu ", (ulong_t)p->lnl);
1291 		if (oflg) {
1292 			if (!nflg) {
1293 				cp = getname(p->luid);
1294 				curcol += printf("%-8s ", cp);
1295 			} else
1296 				curcol += printf("%-8lu ", (ulong_t)p->luid);
1297 		}
1298 		if (gflg) {
1299 			if (!nflg) {
1300 				cp = getgroup(p->lgid);
1301 				curcol += printf("%-8s ", cp);
1302 			} else
1303 				curcol += printf("%-8lu ", (ulong_t)p->lgid);
1304 		}
1305 		if (p->ltype == 'b' || p->ltype == 'c') {
1306 			curcol += printf("%3u, %2u",
1307 			    (uint_t)major((dev_t)p->lsize),
1308 			    (uint_t)minor((dev_t)p->lsize));
1309 		} else if (hflg && (p->lsize >= hscale)) {
1310 			curcol += printf("%7s",
1311 			    number_to_scaled_string(hbuf, p->lsize, hscale));
1312 		} else {
1313 			uint64_t bsize = p->lsize / block_size;
1314 
1315 			/*
1316 			 * Round up only when using blocks > 1 byte, otherwise
1317 			 * 'normal' sizes display 1 byte too large.
1318 			 */
1319 			if (p->lsize % block_size != 0)
1320 				bsize++;
1321 
1322 			curcol += printf("%7" PRIu64, bsize);
1323 		}
1324 		format_time(p->lmtime.tv_sec, p->lmtime.tv_nsec);
1325 		/* format extended system attribute time */
1326 		if (tmflg && crtm)
1327 			format_attrtime(p);
1328 
1329 		curcol += printf("%s", time_buf);
1330 
1331 	}
1332 	/*
1333 	 * prevent both "->" and trailing marks
1334 	 * from appearing
1335 	 */
1336 
1337 	if (pflg && p->ltype == 'd')
1338 		dmark = "/";
1339 
1340 	if (Fflg && !(lflg && p->flinkto)) {
1341 		if (p->ltype == 'd')
1342 			dmark = "/";
1343 		else if (p->ltype == 'D')
1344 			dmark = ">";
1345 		else if (p->ltype == 'p')
1346 			dmark = "|";
1347 		else if (p->ltype == 'l')
1348 			dmark = "@";
1349 		else if (p->ltype == 's')
1350 			dmark = "=";
1351 		else if (!file_typeflg &&
1352 		    (p->lflags & (S_IXUSR|S_IXGRP|S_IXOTH)))
1353 			dmark = "*";
1354 		else
1355 			dmark = "";
1356 	}
1357 
1358 	if (colorflg)
1359 		ls_start_color(p->color);
1360 
1361 	if (p->lflags & ISARG)
1362 		str = p->ln.namep;
1363 	else
1364 		str = p->ln.lname;
1365 
1366 	if (qflg || bflg) {
1367 		csi_pprintf((unsigned char *)str);
1368 
1369 		if (lflg && p->flinkto) {
1370 			if (colorflg)
1371 				ls_end_color();
1372 			csi_pprintf((unsigned char *)" -> ");
1373 			if (colorflg)
1374 				ls_start_color(p->link_color);
1375 			csi_pprintf((unsigned char *)p->flinkto);
1376 		} else {
1377 			csi_pprintf((unsigned char *)dmark);
1378 		}
1379 	} else {
1380 		(void) printf("%s", str);
1381 		curcol += strcol((unsigned char *)str);
1382 
1383 		if (lflg && p->flinkto) {
1384 			if (colorflg)
1385 				ls_end_color();
1386 			str = " -> ";
1387 			(void) printf("%s", str);
1388 			curcol += strcol((unsigned char *)str);
1389 			if (colorflg)
1390 				ls_start_color(p->link_color);
1391 			(void) printf("%s", p->flinkto);
1392 			curcol += strcol((unsigned char *)p->flinkto);
1393 		} else {
1394 			(void) printf("%s", dmark);
1395 			curcol += strcol((unsigned char *)dmark);
1396 		}
1397 	}
1398 
1399 	if (colorflg)
1400 		ls_end_color();
1401 
1402 	/* Display extended system attributes */
1403 	if (saflg) {
1404 		int i;
1405 
1406 		new_line();
1407 		(void) printf("	\t{");
1408 		if (p->exttr != NULL) {
1409 			int k = 0;
1410 			for (i = 0; i < sacnt; i++) {
1411 				if (p->exttr[i].name != NULL)
1412 					k++;
1413 			}
1414 			for (i = 0; i < sacnt; i++) {
1415 				if (p->exttr[i].name != NULL) {
1416 					(void) printf("%s", p->exttr[i].name);
1417 					k--;
1418 					if (vopt && (k != 0))
1419 						(void) printf(",");
1420 				}
1421 			}
1422 		}
1423 		(void) printf("}\n");
1424 	}
1425 	/* Display file timestamps and extended system attribute timestamps */
1426 	if (tmflg && alltm) {
1427 		new_line();
1428 		print_time(p);
1429 		new_line();
1430 	}
1431 	if (vflg) {
1432 		new_line();
1433 		if (p->aclp) {
1434 			acl_printacl(p->aclp, num_cols, Vflg);
1435 		}
1436 	}
1437 	/* Free extended system attribute lists */
1438 	if (saflg || tmflg)
1439 		free_sysattr(p);
1440 }
1441 
1442 /* print various r,w,x permissions */
1443 static void
1444 pmode(mode_t aflag)
1445 {
1446 	/* these arrays are declared static to allow initializations */
1447 	static int	m0[] = { 1, S_IRUSR, 'r', '-' };
1448 	static int	m1[] = { 1, S_IWUSR, 'w', '-' };
1449 	static int	m2[] = { 3, S_ISUID|S_IXUSR, 's', S_IXUSR,
1450 	    'x', S_ISUID, 'S', '-' };
1451 	static int	m3[] = { 1, S_IRGRP, 'r', '-' };
1452 	static int	m4[] = { 1, S_IWGRP, 'w', '-' };
1453 	static int	m5[] = { 4, S_ISGID|S_IXGRP, 's', S_IXGRP,
1454 				'x', S_ISGID|LS_NOTREG, 'S',
1455 #ifdef XPG4
1456 		S_ISGID, 'L', '-'};
1457 #else
1458 		S_ISGID, 'l', '-'};
1459 #endif
1460 	static int	m6[] = { 1, S_IROTH, 'r', '-' };
1461 	static int	m7[] = { 1, S_IWOTH, 'w', '-' };
1462 	static int	m8[] = { 3, S_ISVTX|S_IXOTH, 't', S_IXOTH,
1463 	    'x', S_ISVTX, 'T', '-'};
1464 
1465 	static int *m[] = { m0, m1, m2, m3, m4, m5, m6, m7, m8};
1466 
1467 	int **mp;
1468 
1469 	flags = aflag;
1470 	for (mp = &m[0]; mp < &m[sizeof (m) / sizeof (m[0])]; mp++)
1471 		selection(*mp);
1472 }
1473 
1474 static void
1475 selection(int *pairp)
1476 {
1477 	int n;
1478 
1479 	n = *pairp++;
1480 	while (n-->0) {
1481 		if ((flags & *pairp) == *pairp) {
1482 			pairp++;
1483 			break;
1484 		} else {
1485 			pairp += 2;
1486 		}
1487 	}
1488 	(void) putchar(*pairp);
1489 	curcol++;
1490 }
1491 
1492 /*
1493  * column: get to the beginning of the next column.
1494  */
1495 static void
1496 column(void)
1497 {
1498 	if (curcol == 0)
1499 		return;
1500 	if (mflg) {
1501 		(void) putc(',', stdout);
1502 		curcol++;
1503 		if (curcol + colwidth + 2 > num_cols) {
1504 			(void) putc('\n', stdout);
1505 			curcol = 0;
1506 			return;
1507 		}
1508 		(void) putc(' ', stdout);
1509 		curcol++;
1510 		return;
1511 	}
1512 	if (Cflg == 0) {
1513 		(void) putc('\n', stdout);
1514 		curcol = 0;
1515 		return;
1516 	}
1517 	if ((curcol / colwidth + 2) * colwidth > num_cols) {
1518 		(void) putc('\n', stdout);
1519 		curcol = 0;
1520 		return;
1521 	}
1522 	do {
1523 		(void) putc(' ', stdout);
1524 		curcol++;
1525 	} while (curcol % colwidth);
1526 }
1527 
1528 static void
1529 new_line(void)
1530 {
1531 	if (curcol) {
1532 		first = 0;
1533 		(void) putc('\n', stdout);
1534 		curcol = 0;
1535 	}
1536 }
1537 
1538 /*
1539  * read each filename in directory dir and store its
1540  * status in flist[nfiles]
1541  * use makename() to form pathname dir/filename;
1542  */
1543 static void
1544 rddir(char *dir, struct ditem *myinfo)
1545 {
1546 	struct dirent *dentry;
1547 	DIR *dirf;
1548 	int j;
1549 	struct lbuf *ep;
1550 	int width;
1551 
1552 	if ((dirf = opendir(dir)) == NULL) {
1553 		(void) fflush(stdout);
1554 		perror(dir);
1555 		err = 2;
1556 		return;
1557 	} else {
1558 		tblocks = 0;
1559 		for (;;) {
1560 			errno = 0;
1561 			if ((dentry = readdir(dirf)) == NULL)
1562 				break;
1563 			if (aflg == 0 && dentry->d_name[0] == '.' &&
1564 			    (Aflg == 0 ||
1565 			    dentry->d_name[1] == '\0' ||
1566 			    (dentry->d_name[1] == '.' &&
1567 			    dentry->d_name[2] == '\0')))
1568 				/*
1569 				 * check for directory items '.', '..',
1570 				 *  and items without valid inode-number;
1571 				 */
1572 				continue;
1573 
1574 			/* skip entries ending in ~ if -B was given */
1575 			if (Bflg &&
1576 			    dentry->d_name[strlen(dentry->d_name) - 1] == '~')
1577 				continue;
1578 			if (Cflg || mflg) {
1579 				width = strcol((unsigned char *)dentry->d_name);
1580 				if (width > filewidth)
1581 					filewidth = width;
1582 			}
1583 			ep = gstat(makename(dir, dentry->d_name), 0, myinfo);
1584 			if (ep == NULL) {
1585 				if (nomocore)
1586 					exit(2);
1587 				continue;
1588 			} else {
1589 				ep->lnum = dentry->d_ino;
1590 				for (j = 0; dentry->d_name[j] != '\0'; j++)
1591 					ep->ln.lname[j] = dentry->d_name[j];
1592 				ep->ln.lname[j] = '\0';
1593 
1594 				/*
1595 				 * Since this entry doesn't need to be sorted
1596 				 * or further processed, print it right away.
1597 				 */
1598 				if (noflist) {
1599 					pem(&ep, &ep + 1, 0);
1600 					nfiles--;
1601 				}
1602 			}
1603 		}
1604 		if (errno) {
1605 			int sav_errno = errno;
1606 
1607 			(void) fprintf(stderr,
1608 			    gettext("ls: error reading directory %s: %s\n"),
1609 			    dir, strerror(sav_errno));
1610 		}
1611 		(void) closedir(dirf);
1612 		colwidth = fixedwidth + filewidth;
1613 	}
1614 }
1615 
1616 /*
1617  * Attaching a link to an inode's ancestors.  Search
1618  * through the ancestors to check for cycles (an inode which
1619  * we have already tracked in this inodes ancestry).  If a cycle
1620  * is detected, set the exit code and record the fact so that
1621  * it is reported at the right time when printing the directory.
1622  * In addition, set the exit code.  Note:  If the -a flag was
1623  * specified, we don't want to check for cycles for directories
1624  * ending in '/.' or '/..' unless they were specified on the
1625  * command line.
1626  */
1627 static void
1628 record_ancestry(char *file, struct stat *pstatb, struct lbuf *rep,
1629     int argfl, struct ditem *myparent)
1630 {
1631 	size_t		file_len;
1632 	struct ditem	*myinfo;
1633 	struct ditem	*tptr;
1634 
1635 	file_len = strlen(file);
1636 	if (!aflg || argfl || (NOTWORKINGDIR(file, file_len) &&
1637 	    NOTPARENTDIR(file, file_len))) {
1638 		/*
1639 		 * Add this inode's ancestry
1640 		 * info and insert it into the
1641 		 * ancestry list by pointing
1642 		 * back to its parent.  We save
1643 		 * it (in rep) with the other info
1644 		 * we're gathering for this inode.
1645 		 */
1646 		if ((myinfo = malloc(
1647 		    sizeof (struct ditem))) == NULL) {
1648 			perror("ls");
1649 			exit(2);
1650 		}
1651 		myinfo->dev = pstatb->st_dev;
1652 		myinfo->ino = pstatb->st_ino;
1653 		myinfo->parent = myparent;
1654 		rep->ancinfo = myinfo;
1655 
1656 		/*
1657 		 * If this node has the same device id and
1658 		 * inode number of one of its ancestors,
1659 		 * then we've detected a cycle.
1660 		 */
1661 		if (myparent != NULL) {
1662 			for (tptr = myparent; tptr->parent != NULL;
1663 			    tptr = tptr->parent) {
1664 				if ((tptr->dev == pstatb->st_dev) &&
1665 				    (tptr->ino == pstatb->st_ino)) {
1666 					/*
1667 					 * Cycle detected for this
1668 					 * directory.  Record the fact
1669 					 * it is a cycle so we don't
1670 					 * try to process this
1671 					 * directory as we are
1672 					 * walking through the
1673 					 * list of directories.
1674 					 */
1675 					rep->cycle = 1;
1676 					err = 2;
1677 					break;
1678 				}
1679 			}
1680 		}
1681 	}
1682 }
1683 
1684 /*
1685  * Do re-calculate the mode for group for ACE_T type of acls.
1686  * This is because, if the server's FS happens to be UFS, supporting
1687  * POSIX ACL's, then it does a special calculation of group mode
1688  * to be the bitwise OR of CLASS_OBJ and GROUP_OBJ (see PSARC/2001/717.)
1689  *
1690  * This algorithm is from the NFSv4 ACL Draft. Here a part of that
1691  * algorithm is used for the group mode calculation only.
1692  * What is modified here from the algorithm is that only the
1693  * entries with flags ACE_GROUP are considered. For each entry
1694  * with ACE_GROUP flag, the first occurance of a specific access
1695  * is checked if it is allowed.
1696  * We are not interested in perms for user and other, as they
1697  * were taken from st_mode value.
1698  * We are not interested in a_who field of ACE, as we need just
1699  * unix mode bits for the group.
1700  */
1701 
1702 #define	OWNED_GROUP	(ACE_GROUP | ACE_IDENTIFIER_GROUP)
1703 #define	IS_TYPE_ALLOWED(type)	((type) == ACE_ACCESS_ALLOWED_ACE_TYPE)
1704 
1705 int
1706 grp_mask_to_mode(struct lbuf *p)
1707 {
1708 	int mode = 0, seen = 0;
1709 	int acecnt;
1710 	int flags;
1711 	ace_t *ap;
1712 	acl_t *acep = p->aclp;
1713 
1714 	acecnt = acl_cnt(acep);
1715 	for (ap = (ace_t *)acl_data(acep); acecnt--; ap++) {
1716 
1717 		if (ap->a_type != ACE_ACCESS_ALLOWED_ACE_TYPE &&
1718 		    ap->a_type != ACE_ACCESS_DENIED_ACE_TYPE)
1719 			continue;
1720 
1721 		if (ap->a_flags & ACE_INHERIT_ONLY_ACE)
1722 			continue;
1723 
1724 		/*
1725 		 * if it is first group@ or first everyone@
1726 		 * for each of read, write and execute, then
1727 		 * that will be the group mode bit.
1728 		 */
1729 		flags = ap->a_flags & ACE_TYPE_FLAGS;
1730 		if (flags == OWNED_GROUP || (flags == ACE_IDENTIFIER_GROUP &&
1731 		    ap->a_who == p->lgid) || flags == ACE_EVERYONE) {
1732 			if (ap->a_access_mask & ACE_READ_DATA) {
1733 				if (!(seen & S_IRGRP)) {
1734 					seen |= S_IRGRP;
1735 					if (IS_TYPE_ALLOWED(ap->a_type))
1736 						mode |= S_IRGRP;
1737 				}
1738 			}
1739 			if (ap->a_access_mask & ACE_WRITE_DATA) {
1740 				if (!(seen & S_IWGRP)) {
1741 					seen |= S_IWGRP;
1742 					if (IS_TYPE_ALLOWED(ap->a_type))
1743 						mode |= S_IWGRP;
1744 				}
1745 			}
1746 			if (ap->a_access_mask & ACE_EXECUTE) {
1747 				if (!(seen & S_IXGRP)) {
1748 					seen |= S_IXGRP;
1749 					if (IS_TYPE_ALLOWED(ap->a_type))
1750 						mode |= S_IXGRP;
1751 				}
1752 			}
1753 		}
1754 	}
1755 	return (mode);
1756 }
1757 
1758 /*
1759  * get status of file and recomputes tblocks;
1760  * argfl = 1 if file is a name in ls-command and = 0
1761  * for filename in a directory whose name is an
1762  * argument in the command;
1763  * stores a pointer in flist[nfiles] and
1764  * returns that pointer;
1765  * returns NULL if failed;
1766  */
1767 static struct lbuf *
1768 gstat(char *file, int argfl, struct ditem *myparent)
1769 {
1770 	struct stat statb, statb1;
1771 	struct lbuf *rep;
1772 	char buf[BUFSIZ];
1773 	ssize_t cc;
1774 	int (*statf)() = ((Lflg) || (Hflg && argfl)) ? stat : lstat;
1775 	int aclcnt;
1776 	int error;
1777 	aclent_t *tp;
1778 	o_mode_t groupperm, mask;
1779 	int grouppermfound, maskfound;
1780 
1781 	if (nomocore)
1782 		return (NULL);
1783 
1784 	if (nfiles >= maxfils) {
1785 		/*
1786 		 * all flist/lbuf pair assigned files, time to get some
1787 		 * more space
1788 		 */
1789 		maxfils += quantn;
1790 		if (((flist = realloc(flist,
1791 		    maxfils * sizeof (struct lbuf *))) == NULL) ||
1792 		    ((nxtlbf = malloc(quantn *
1793 		    sizeof (struct lbuf))) == NULL)) {
1794 			perror("ls");
1795 			nomocore = 1;
1796 			return (NULL);
1797 		}
1798 	}
1799 
1800 	/*
1801 	 * nfiles is reset to nargs for each directory
1802 	 * that is given as an argument maxn is checked
1803 	 * to prevent the assignment of an lbuf to a flist entry
1804 	 * that already has one assigned.
1805 	 */
1806 	if (nfiles >= maxn) {
1807 		rep = nxtlbf++;
1808 		flist[nfiles++] = rep;
1809 		maxn = nfiles;
1810 	} else {
1811 		rep = flist[nfiles++];
1812 	}
1813 
1814 	/*
1815 	 * When noflist is set, none of the extra information about the dirent
1816 	 * will be printed, so omit initialization of this lbuf as well as the
1817 	 * stat(2) call.
1818 	 */
1819 	if (!argfl && noflist)
1820 		return (rep);
1821 
1822 	/* Initialize */
1823 
1824 	rep->lflags = (mode_t)0;
1825 	rep->flinkto = NULL;
1826 	rep->cycle = 0;
1827 	rep->lat.tv_sec = time(NULL);
1828 	rep->lat.tv_nsec = 0;
1829 	rep->lct.tv_sec = time(NULL);
1830 	rep->lct.tv_nsec = 0;
1831 	rep->lmt.tv_sec = time(NULL);
1832 	rep->lmt.tv_nsec = 0;
1833 	rep->aclp = NULL;
1834 	rep->exttr = NULL;
1835 	rep->extm = NULL;
1836 	rep->color = NULL;
1837 	rep->link_color = NULL;
1838 
1839 	if (argfl || statreq) {
1840 		int doacl;
1841 
1842 		if (lflg)
1843 			doacl = 1;
1844 		else
1845 			doacl = 0;
1846 
1847 		if ((*statf)(file, &statb) < 0) {
1848 			if (argfl || errno != ENOENT ||
1849 			    (Lflg && lstat(file, &statb) == 0)) {
1850 				/*
1851 				 * Avoid race between readdir and lstat.
1852 				 * Print error message in case of dangling link.
1853 				 */
1854 				perror(file);
1855 				err = 2;
1856 			}
1857 			nfiles--;
1858 			return (NULL);
1859 		}
1860 
1861 		/*
1862 		 * If -H was specified, and the file linked to was
1863 		 * not a directory, then we need to get the info
1864 		 * for the symlink itself.
1865 		 */
1866 		if ((Hflg) && (argfl) &&
1867 		    ((statb.st_mode & S_IFMT) != S_IFDIR)) {
1868 			if (lstat(file, &statb) < 0) {
1869 				perror(file);
1870 				err = 2;
1871 			}
1872 		}
1873 
1874 		rep->lnum = statb.st_ino;
1875 		rep->lsize = statb.st_size;
1876 		rep->lblocks = statb.st_blocks;
1877 		if (colorflg)
1878 			rep->color = ls_color_find(file, statb.st_mode);
1879 
1880 		switch (statb.st_mode & S_IFMT) {
1881 		case S_IFDIR:
1882 			rep->ltype = 'd';
1883 			if (Rflg) {
1884 				record_ancestry(file, &statb, rep,
1885 				    argfl, myparent);
1886 			}
1887 			break;
1888 		case S_IFBLK:
1889 			rep->ltype = 'b';
1890 			rep->lsize = (off_t)statb.st_rdev;
1891 			break;
1892 		case S_IFCHR:
1893 			rep->ltype = 'c';
1894 			rep->lsize = (off_t)statb.st_rdev;
1895 			break;
1896 		case S_IFIFO:
1897 			rep->ltype = 'p';
1898 			break;
1899 		case S_IFSOCK:
1900 			rep->ltype = 's';
1901 			rep->lsize = 0;
1902 			break;
1903 		case S_IFLNK:
1904 			/* symbolic links may not have ACLs, so elide acl() */
1905 			if ((Lflg == 0) || (Hflg == 0) ||
1906 			    ((Hflg) && (!argfl))) {
1907 				doacl = 0;
1908 			}
1909 			rep->ltype = 'l';
1910 			if (lflg || colorflg) {
1911 				cc = readlink(file, buf, BUFSIZ);
1912 				if (cc < 0)
1913 					break;
1914 
1915 				/*
1916 				 * follow the symbolic link
1917 				 * to generate the appropriate
1918 				 * Fflg marker for the object
1919 				 * eg, /bin -> /sym/bin/
1920 				 */
1921 				error = 0;
1922 				if (Fflg || pflg || colorflg)
1923 					error = stat(file, &statb1);
1924 
1925 				if (colorflg) {
1926 					if (error >= 0)
1927 						rep->link_color =
1928 						    ls_color_find(file,
1929 						    statb1.st_mode);
1930 					else
1931 						rep->link_color =
1932 						    lsc_orphan;
1933 				}
1934 
1935 				if ((Fflg || pflg) && error >= 0) {
1936 					switch (statb1.st_mode & S_IFMT) {
1937 					case S_IFDIR:
1938 						buf[cc++] = '/';
1939 						break;
1940 					case S_IFSOCK:
1941 						buf[cc++] = '=';
1942 						break;
1943 					case S_IFDOOR:
1944 						buf[cc++] = '>';
1945 						break;
1946 					case S_IFIFO:
1947 						buf[cc++] = '|';
1948 						break;
1949 					default:
1950 						if ((statb1.st_mode & ~S_IFMT) &
1951 						    (S_IXUSR|S_IXGRP| S_IXOTH))
1952 							buf[cc++] = '*';
1953 						break;
1954 					}
1955 				}
1956 				buf[cc] = '\0';
1957 				rep->flinkto = strdup(buf);
1958 				if (rep->flinkto == NULL) {
1959 					perror("ls");
1960 					nomocore = 1;
1961 					return (NULL);
1962 				}
1963 				break;
1964 			}
1965 
1966 			/*
1967 			 * ls /sym behaves differently from ls /sym/
1968 			 * when /sym is a symbolic link. This is fixed
1969 			 * when explicit arguments are specified.
1970 			 */
1971 
1972 #ifdef XPG6
1973 			/* Do not follow a symlink when -F is specified */
1974 			if ((!argfl) || (argfl && Fflg) ||
1975 			    (stat(file, &statb1) < 0))
1976 #else
1977 			/* Follow a symlink when -F is specified */
1978 			if (!argfl || stat(file, &statb1) < 0)
1979 #endif /* XPG6 */
1980 				break;
1981 			if ((statb1.st_mode & S_IFMT) == S_IFDIR) {
1982 				statb = statb1;
1983 				rep->ltype = 'd';
1984 				rep->lsize = statb1.st_size;
1985 				if (Rflg) {
1986 					record_ancestry(file, &statb, rep,
1987 					    argfl, myparent);
1988 				}
1989 			}
1990 			break;
1991 		case S_IFDOOR:
1992 			rep->ltype = 'D';
1993 			break;
1994 		case S_IFREG:
1995 			rep->ltype = '-';
1996 			break;
1997 		case S_IFPORT:
1998 			rep->ltype = 'P';
1999 			break;
2000 		default:
2001 			rep->ltype = '?';
2002 			break;
2003 		}
2004 		rep->lflags = statb.st_mode & ~S_IFMT;
2005 
2006 		if (!S_ISREG(statb.st_mode))
2007 			rep->lflags |= LS_NOTREG;
2008 
2009 		rep->luid = statb.st_uid;
2010 		rep->lgid = statb.st_gid;
2011 		rep->lnl = statb.st_nlink;
2012 		if (uflg || (tmflg && atm))
2013 			rep->lmtime = statb.st_atim;
2014 		else if (cflg || (tmflg && ctm))
2015 			rep->lmtime = statb.st_ctim;
2016 		else
2017 			rep->lmtime = statb.st_mtim;
2018 		rep->lat = statb.st_atim;
2019 		rep->lct = statb.st_ctim;
2020 		rep->lmt = statb.st_mtim;
2021 
2022 		/* ACL: check acl entries count */
2023 		if (doacl) {
2024 
2025 			error = acl_get(file, 0, &rep->aclp);
2026 			if (error) {
2027 				(void) fprintf(stderr,
2028 				    gettext("ls: can't read ACL on %s: %s\n"),
2029 				    file, acl_strerror(error));
2030 				rep->acl = ' ';
2031 				acl_err++;
2032 				return (rep);
2033 			}
2034 
2035 			rep->acl = ' ';
2036 
2037 			if (rep->aclp &&
2038 			    ((acl_flags(rep->aclp) & ACL_IS_TRIVIAL) == 0)) {
2039 				rep->acl = '+';
2040 				/*
2041 				 * Special handling for ufs aka aclent_t ACL's
2042 				 */
2043 				if (acl_type(rep->aclp) == ACLENT_T) {
2044 					/*
2045 					 * For files with non-trivial acls, the
2046 					 * effective group permissions are the
2047 					 * intersection of the GROUP_OBJ value
2048 					 * and the CLASS_OBJ (acl mask) value.
2049 					 * Determine both the GROUP_OBJ and
2050 					 * CLASS_OBJ for this file and insert
2051 					 * the logical AND of those two values
2052 					 * in the group permissions field
2053 					 * of the lflags value for this file.
2054 					 */
2055 
2056 					/*
2057 					 * Until found in acl list, assume
2058 					 * maximum permissions for both group
2059 					 * a nd mask.  (Just in case the acl
2060 					 * lacks either value for some reason.)
2061 					 */
2062 					groupperm = 07;
2063 					mask = 07;
2064 					grouppermfound = 0;
2065 					maskfound = 0;
2066 					aclcnt = acl_cnt(rep->aclp);
2067 					for (tp =
2068 					    (aclent_t *)acl_data(rep->aclp);
2069 					    aclcnt--; tp++) {
2070 						if (tp->a_type == GROUP_OBJ) {
2071 							groupperm = tp->a_perm;
2072 							grouppermfound = 1;
2073 							continue;
2074 						}
2075 						if (tp->a_type == CLASS_OBJ) {
2076 							mask = tp->a_perm;
2077 							maskfound = 1;
2078 						}
2079 						if (grouppermfound && maskfound)
2080 							break;
2081 					}
2082 
2083 
2084 					/* reset all the group bits */
2085 					rep->lflags &= ~S_IRWXG;
2086 
2087 					/*
2088 					 * Now set them to the logical AND of
2089 					 * the GROUP_OBJ permissions and the
2090 					 * acl mask.
2091 					 */
2092 
2093 					rep->lflags |= (groupperm & mask) << 3;
2094 
2095 				} else if (acl_type(rep->aclp) == ACE_T) {
2096 					int mode;
2097 					mode = grp_mask_to_mode(rep);
2098 					rep->lflags &= ~S_IRWXG;
2099 					rep->lflags |= mode;
2100 				}
2101 			}
2102 
2103 			if (!vflg && !Vflg && rep->aclp) {
2104 				acl_free(rep->aclp);
2105 				rep->aclp = NULL;
2106 			}
2107 
2108 			if (atflg && pathconf(file, _PC_XATTR_EXISTS) == 1)
2109 				rep->acl = '@';
2110 
2111 		} else
2112 			rep->acl = ' ';
2113 
2114 		/* mask ISARG and other file-type bits */
2115 
2116 		if (rep->ltype != 'b' && rep->ltype != 'c')
2117 			tblocks += rep->lblocks;
2118 
2119 		/* Get extended system attributes */
2120 
2121 		if ((saflg || (tmflg && crtm) || (tmflg && alltm)) &&
2122 		    (sysattr_support(file, _PC_SATTR_EXISTS) == 1)) {
2123 			int i;
2124 
2125 			sacnt = attr_count();
2126 			/*
2127 			 * Allocate 'sacnt' size array to hold extended
2128 			 * system attribute name (verbose) or respective
2129 			 * symbol represenation (compact).
2130 			 */
2131 			rep->exttr = xmalloc(sacnt * sizeof (struct attrb),
2132 			    rep);
2133 
2134 			/* initialize boolean attribute list */
2135 			for (i = 0; i < sacnt; i++)
2136 				rep->exttr[i].name = NULL;
2137 			if (get_sysxattr(file, rep) != 0) {
2138 				(void) fprintf(stderr,
2139 				    gettext("ls:Failed to retrieve "
2140 				    "extended system attribute from "
2141 				    "%s\n"), file);
2142 				rep->exttr[0].name = xmalloc(2, rep);
2143 				(void) strlcpy(rep->exttr[0].name, "?", 2);
2144 			}
2145 		}
2146 	}
2147 	return (rep);
2148 }
2149 
2150 /*
2151  * returns pathname of the form dir/file;
2152  * dir and file are null-terminated strings.
2153  */
2154 static char *
2155 makename(char *dir, char *file)
2156 {
2157 	/*
2158 	 * PATH_MAX is the maximum length of a path name.
2159 	 * MAXNAMLEN is the maximum length of any path name component.
2160 	 * Allocate space for both, plus the '/' in the middle
2161 	 * and the null character at the end.
2162 	 * dfile is static as this is returned by makename().
2163 	 */
2164 	static char dfile[PATH_MAX + 1 + MAXNAMLEN + 1];
2165 	char *dp, *fp;
2166 
2167 	dp = dfile;
2168 	fp = dir;
2169 	while (*fp)
2170 		*dp++ = *fp++;
2171 	if (dp > dfile && *(dp - 1) != '/')
2172 		*dp++ = '/';
2173 	fp = file;
2174 	while (*fp)
2175 		*dp++ = *fp++;
2176 	*dp = '\0';
2177 	return (dfile);
2178 }
2179 
2180 
2181 #include <pwd.h>
2182 #include <grp.h>
2183 #include <utmpx.h>
2184 
2185 struct	utmpx utmp;
2186 
2187 #define	NMAX	(sizeof (utmp.ut_name))
2188 #define	SCPYN(a, b)	(void) strncpy(a, b, NMAX)
2189 
2190 
2191 struct cachenode {		/* this struct must be zeroed before using */
2192 	struct cachenode *lesschild;	/* subtree whose entries < val */
2193 	struct cachenode *grtrchild;	/* subtree whose entries > val */
2194 	long val;			/* the uid or gid of this entry */
2195 	int initted;			/* name has been filled in */
2196 	char name[NMAX+1];		/* the string that val maps to */
2197 };
2198 static struct cachenode *names, *groups;
2199 
2200 static struct cachenode *
2201 findincache(struct cachenode **head, long val)
2202 {
2203 	struct cachenode **parent = head;
2204 	struct cachenode *c = *parent;
2205 
2206 	while (c != NULL) {
2207 		if (val == c->val) {
2208 			/* found it */
2209 			return (c);
2210 		} else if (val < c->val) {
2211 			parent = &c->lesschild;
2212 			c = c->lesschild;
2213 		} else {
2214 			parent = &c->grtrchild;
2215 			c = c->grtrchild;
2216 		}
2217 	}
2218 
2219 	/* not in the cache, make a new entry for it */
2220 	c = calloc(1, sizeof (struct cachenode));
2221 	if (c == NULL) {
2222 		perror("ls");
2223 		exit(2);
2224 	}
2225 	*parent = c;
2226 	c->val = val;
2227 	return (c);
2228 }
2229 
2230 /*
2231  * get name from cache, or passwd file for a given uid;
2232  * lastuid is set to uid.
2233  */
2234 static char *
2235 getname(uid_t uid)
2236 {
2237 	struct passwd *pwent;
2238 	struct cachenode *c;
2239 
2240 	if ((uid == lastuid) && lastuname)
2241 		return (lastuname);
2242 
2243 	c = findincache(&names, uid);
2244 	if (c->initted == 0) {
2245 		if ((pwent = getpwuid(uid)) != NULL) {
2246 			SCPYN(&c->name[0], pwent->pw_name);
2247 		} else {
2248 			(void) sprintf(&c->name[0], "%-8u", (int)uid);
2249 		}
2250 		c->initted = 1;
2251 	}
2252 	lastuid = uid;
2253 	lastuname = &c->name[0];
2254 	return (lastuname);
2255 }
2256 
2257 /*
2258  * get name from cache, or group file for a given gid;
2259  * lastgid is set to gid.
2260  */
2261 static char *
2262 getgroup(gid_t gid)
2263 {
2264 	struct group *grent;
2265 	struct cachenode *c;
2266 
2267 	if ((gid == lastgid) && lastgname)
2268 		return (lastgname);
2269 
2270 	c = findincache(&groups, gid);
2271 	if (c->initted == 0) {
2272 		if ((grent = getgrgid(gid)) != NULL) {
2273 			SCPYN(&c->name[0], grent->gr_name);
2274 		} else {
2275 			(void) sprintf(&c->name[0], "%-8u", (int)gid);
2276 		}
2277 		c->initted = 1;
2278 	}
2279 	lastgid = gid;
2280 	lastgname = &c->name[0];
2281 	return (lastgname);
2282 }
2283 
2284 /* return >0 if item pointed by pp2 should appear first */
2285 static int
2286 compar(struct lbuf **pp1, struct lbuf **pp2)
2287 {
2288 	struct lbuf *p1, *p2;
2289 
2290 	p1 = *pp1;
2291 	p2 = *pp2;
2292 	if (dflg == 0) {
2293 /*
2294  * compare two names in ls-command one of which is file
2295  * and the other is a directory;
2296  * this portion is not used for comparing files within
2297  * a directory name of ls-command;
2298  */
2299 		if (p1->lflags&ISARG && p1->ltype == 'd') {
2300 			if (!(p2->lflags&ISARG && p2->ltype == 'd'))
2301 				return (1);
2302 		} else {
2303 			if (p2->lflags&ISARG && p2->ltype == 'd')
2304 				return (-1);
2305 		}
2306 	}
2307 	if (tflg) {
2308 		if (p2->lmtime.tv_sec > p1->lmtime.tv_sec)
2309 			return (rflg);
2310 		else if (p2->lmtime.tv_sec < p1->lmtime.tv_sec)
2311 			return (-rflg);
2312 		/* times are equal to the sec, check nsec */
2313 		if (p2->lmtime.tv_nsec > p1->lmtime.tv_nsec)
2314 			return (rflg);
2315 		else if (p2->lmtime.tv_nsec < p1->lmtime.tv_nsec)
2316 			return (-rflg);
2317 		/* if times are equal, fall through and sort by name */
2318 	} else if (Sflg) {
2319 		/*
2320 		 * The size stored in lsize can be either the
2321 		 * size or the major minor number (in the case of
2322 		 * block and character special devices).  If it's
2323 		 * a major minor number, then the size is considered
2324 		 * to be zero and we want to fall through and sort
2325 		 * by name.  In addition, if the size of p2 is equal
2326 		 * to the size of p1 we want to fall through and
2327 		 * sort by name.
2328 		 */
2329 		off_t	p1size = (p1->ltype == 'b') ||
2330 		    (p1->ltype == 'c') ? 0 : p1->lsize;
2331 		off_t	p2size = (p2->ltype == 'b') ||
2332 		    (p2->ltype == 'c') ? 0 : p2->lsize;
2333 		if (p2size > p1size) {
2334 			return (rflg);
2335 		} else if (p2size < p1size) {
2336 			return (-rflg);
2337 		}
2338 		/* Sizes are equal, fall through and sort by name. */
2339 	}
2340 	return (rflg * strcoll(
2341 	    p1->lflags & ISARG ? p1->ln.namep : p1->ln.lname,
2342 	    p2->lflags&ISARG ? p2->ln.namep : p2->ln.lname));
2343 }
2344 
2345 static void
2346 pprintf(char *s1, char *s2)
2347 {
2348 	csi_pprintf((unsigned char *)s1);
2349 	csi_pprintf((unsigned char *)s2);
2350 }
2351 
2352 static void
2353 csi_pprintf(unsigned char *s)
2354 {
2355 	unsigned char *cp;
2356 	char	c;
2357 	int	i;
2358 	int	c_len;
2359 	int	p_col;
2360 	wchar_t	pcode;
2361 
2362 	if (!qflg && !bflg) {
2363 		for (cp = s; *cp != '\0'; cp++) {
2364 			(void) putchar(*cp);
2365 			curcol++;
2366 		}
2367 		return;
2368 	}
2369 
2370 	for (cp = s; *cp; ) {
2371 		if (isascii(c = *cp)) {
2372 			if (!isprint(c)) {
2373 				if (qflg) {
2374 					c = '?';
2375 				} else {
2376 					curcol += 3;
2377 					(void) putc('\\', stdout);
2378 					c = '0' + ((*cp >> 6) & 07);
2379 					(void) putc(c, stdout);
2380 					c = '0' + ((*cp >> 3) & 07);
2381 					(void) putc(c, stdout);
2382 					c = '0' + (*cp & 07);
2383 				}
2384 			}
2385 			curcol++;
2386 			cp++;
2387 			(void) putc(c, stdout);
2388 			continue;
2389 		}
2390 
2391 		if ((c_len = mbtowc(&pcode, (char *)cp, MB_LEN_MAX)) <= 0) {
2392 			c_len = 1;
2393 			goto not_print;
2394 		}
2395 
2396 		if ((p_col = wcwidth(pcode)) > 0) {
2397 			(void) putwchar(pcode);
2398 			cp += c_len;
2399 			curcol += p_col;
2400 			continue;
2401 		}
2402 
2403 not_print:
2404 		for (i = 0; i < c_len; i++) {
2405 			if (qflg) {
2406 				c = '?';
2407 			} else {
2408 				curcol += 3;
2409 				(void) putc('\\', stdout);
2410 				c = '0' + ((*cp >> 6) & 07);
2411 				(void) putc(c, stdout);
2412 				c = '0' + ((*cp >> 3) & 07);
2413 				(void) putc(c, stdout);
2414 				c = '0' + (*cp & 07);
2415 			}
2416 			curcol++;
2417 			(void) putc(c, stdout);
2418 			cp++;
2419 		}
2420 	}
2421 }
2422 
2423 static int
2424 strcol(unsigned char *s1)
2425 {
2426 	int	w;
2427 	int	w_col;
2428 	int	len;
2429 	wchar_t	wc;
2430 
2431 	w = 0;
2432 	while (*s1) {
2433 		if (isascii(*s1)) {
2434 			w++;
2435 			s1++;
2436 			continue;
2437 		}
2438 
2439 		if ((len = mbtowc(&wc, (char *)s1, MB_LEN_MAX)) <= 0) {
2440 			w++;
2441 			s1++;
2442 			continue;
2443 		}
2444 
2445 		if ((w_col = wcwidth(wc)) < 0)
2446 			w_col = len;
2447 		s1 += len;
2448 		w += w_col;
2449 	}
2450 	return (w);
2451 }
2452 
2453 /*
2454  * Convert an unsigned long long to a string representation and place the
2455  * result in the caller-supplied buffer.
2456  *
2457  * The number provided is a size in bytes.  The number is first
2458  * converted to an integral multiple of 'scale' bytes.  This new
2459  * number is then scaled down until it is small enough to be in a good
2460  * human readable format, i.e.  in the range 0 thru scale-1.  If the
2461  * number used to derive the final number is not a multiple of scale, and
2462  * the final number has only a single significant digit, we compute
2463  * tenths of units to provide a second significant digit.
2464  *
2465  * The value "(unsigned long long)-1" is a special case and is always
2466  * converted to "-1".
2467  *
2468  * A pointer to the caller-supplied buffer is returned.
2469  */
2470 static char *
2471 number_to_scaled_string(
2472 			numbuf_t buf,		/* put the result here */
2473 			unsigned long long number, /* convert this number */
2474 			long scale)
2475 {
2476 	unsigned long long save;
2477 	/* Measurement: kilo, mega, giga, tera, peta, exa */
2478 	char *uom = "KMGTPE";
2479 
2480 	if ((long long)number == (long long)-1) {
2481 		(void) strlcpy(buf, "-1", sizeof (numbuf_t));
2482 		return (buf);
2483 	}
2484 
2485 	save = number;
2486 	number = number / scale;
2487 
2488 	/*
2489 	 * Now we have number as a count of scale units.
2490 	 * If no further scaling is necessary, we round up as appropriate.
2491 	 *
2492 	 * The largest value number could have had entering the routine is
2493 	 * 16 Exabytes, so running off the end of the uom array should
2494 	 * never happen.  We check for that, though, as a guard against
2495 	 * a breakdown elsewhere in the algorithm.
2496 	 */
2497 	if (number < (unsigned long long)scale) {
2498 		if ((save % scale) >= (unsigned long long)(scale / 2)) {
2499 			if (++number == (unsigned long long)scale) {
2500 				uom++;
2501 				number = 1;
2502 			}
2503 		}
2504 	} else {
2505 		while ((number >= (unsigned long long)scale) && (*uom != 'E')) {
2506 			uom++; /* next unit of measurement */
2507 			save = number;
2508 			/*
2509 			 * If we're over half way to the next unit of
2510 			 * 'scale' bytes (which means we should round
2511 			 * up), then adding half of 'scale' prior to
2512 			 * the division will push us into that next
2513 			 * unit of scale when we perform the division
2514 			 */
2515 			number = (number + (scale / 2)) / scale;
2516 		}
2517 	}
2518 
2519 	/* check if we should output a decimal place after the point */
2520 	if ((save / scale) < 10) {
2521 		/* snprintf() will round for us */
2522 		float fnum = (float)save / scale;
2523 		(void) snprintf(buf, sizeof (numbuf_t), "%2.1f%c",
2524 		    fnum, *uom);
2525 	} else {
2526 		(void) snprintf(buf, sizeof (numbuf_t), "%4llu%c",
2527 		    number, *uom);
2528 	}
2529 	return (buf);
2530 }
2531 
2532 /* Get extended system attributes and set the display */
2533 
2534 int
2535 get_sysxattr(char *fname, struct lbuf *rep)
2536 {
2537 	boolean_t	value;
2538 	data_type_t	type;
2539 	int		error;
2540 	char		*name;
2541 	int		i;
2542 
2543 	if ((error = getattrat(AT_FDCWD, XATTR_VIEW_READWRITE, fname,
2544 	    &response)) != 0) {
2545 		perror("ls:getattrat");
2546 		return (error);
2547 	}
2548 
2549 	/*
2550 	 * Allocate 'sacnt' size array to hold extended timestamp
2551 	 * system attributes and initialize the array.
2552 	 */
2553 	rep->extm = xmalloc(sacnt * sizeof (struct attrtm), rep);
2554 	for (i = 0; i < sacnt; i++) {
2555 		rep->extm[i].stm = 0;
2556 		rep->extm[i].nstm = 0;
2557 		rep->extm[i].name = NULL;
2558 	}
2559 	while ((pair = nvlist_next_nvpair(response, pair)) != NULL) {
2560 		name = nvpair_name(pair);
2561 		type = nvpair_type(pair);
2562 		if (type == DATA_TYPE_BOOLEAN_VALUE) {
2563 			error = nvpair_value_boolean_value(pair, &value);
2564 			if (error) {
2565 				(void) fprintf(stderr,
2566 				    gettext("nvpair_value_boolean_value "
2567 				    "failed: error = %d\n"), error);
2568 				continue;
2569 			}
2570 			if (name != NULL)
2571 				set_sysattrb_display(name, value, rep);
2572 			continue;
2573 		} else if (type == DATA_TYPE_UINT64_ARRAY) {
2574 			if (name != NULL)
2575 				set_sysattrtm_display(name, rep);
2576 			continue;
2577 		}
2578 	}
2579 	nvlist_free(response);
2580 	return (0);
2581 }
2582 
2583 /* Set extended system attribute boolean display */
2584 
2585 void
2586 set_sysattrb_display(char *name, boolean_t val, struct lbuf *rep)
2587 {
2588 	f_attr_t	fattr;
2589 	const char	*opt;
2590 	size_t		len;
2591 
2592 	fattr = name_to_attr(name);
2593 	if (fattr != F_ATTR_INVAL && fattr < sacnt) {
2594 		if (vopt) {
2595 			len = strlen(name);
2596 			if (val) {
2597 				rep->exttr[fattr].name = xmalloc(len + 1, rep);
2598 				(void) strlcpy(rep->exttr[fattr].name, name,
2599 				    len + 1);
2600 			} else {
2601 				rep->exttr[fattr].name = xmalloc(len + 3, rep);
2602 				(void) snprintf(rep->exttr[fattr].name, len + 3,
2603 				    "no%s", name);
2604 			}
2605 		} else {
2606 			opt = attr_to_option(fattr);
2607 			if (opt != NULL) {
2608 				len = strlen(opt);
2609 				rep->exttr[fattr].name = xmalloc(len + 1, rep);
2610 				if (val)
2611 					(void) strlcpy(rep->exttr[fattr].name,
2612 					    opt, len + 1);
2613 				else
2614 					(void) strlcpy(rep->exttr[fattr].name,
2615 					    "-", len + 1);
2616 			}
2617 		}
2618 	}
2619 }
2620 
2621 /* Set extended system attribute timestamp display */
2622 
2623 void
2624 set_sysattrtm_display(char *name, struct lbuf *rep)
2625 {
2626 	uint_t		nelem;
2627 	uint64_t	*value;
2628 	int		i;
2629 	size_t		len;
2630 
2631 	if (nvpair_value_uint64_array(pair, &value, &nelem) == 0) {
2632 		if (*value != NULL) {
2633 			len = strlen(name);
2634 			i = 0;
2635 			while (rep->extm[i].stm != 0 && i < sacnt)
2636 				i++;
2637 			rep->extm[i].stm = value[0];
2638 			rep->extm[i].nstm = value[1];
2639 			rep->extm[i].name = xmalloc(len + 1, rep);
2640 			(void) strlcpy(rep->extm[i].name, name, len + 1);
2641 		}
2642 	}
2643 }
2644 
2645 void
2646 format_time(time_t sec, time_t nsec)
2647 {
2648 	const char *fstr = time_fmt_new;
2649 	char fmt_buf[FMTSIZE];
2650 
2651 	if (Eflg) {
2652 		(void) snprintf(fmt_buf, FMTSIZE, fstr, nsec);
2653 		(void) strftime(time_buf, sizeof (time_buf), fmt_buf,
2654 		    localtime(&sec));
2655 		return;
2656 	}
2657 
2658 	if (sec < year || sec > now)
2659 		fstr = time_fmt_old;
2660 
2661 	/* if a custom time was specified, shouldn't be localized */
2662 	(void) strftime(time_buf, sizeof (time_buf),
2663 	    (time_custom == 0) ? dcgettext(NULL, fstr, LC_TIME) : fstr,
2664 	    localtime(&sec));
2665 }
2666 
2667 void
2668 format_attrtime(struct lbuf *p)
2669 {
2670 	int tmattr = 0;
2671 	int i;
2672 
2673 	if (p->extm != NULL) {
2674 		for (i = 0; i < sacnt; i++) {
2675 			if (p->extm[i].name != NULL) {
2676 				tmattr = 1;
2677 				break;
2678 			}
2679 		}
2680 	}
2681 
2682 	if (tmattr) {
2683 		const char *old_save = time_fmt_old;
2684 		const char *new_save = time_fmt_new;
2685 
2686 		/* Eflg always sets format to FORMAT_ISO_FULL */
2687 		if (!Eflg && !time_custom) {
2688 			time_fmt_old = FORMAT_OLD;
2689 			time_fmt_new = FORMAT_NEW;
2690 		}
2691 
2692 		format_time((time_t)p->extm[i].stm, (time_t)p->extm[i].nstm);
2693 
2694 		time_fmt_old = old_save;
2695 		time_fmt_new = new_save;
2696 	}
2697 }
2698 
2699 void
2700 print_time(struct lbuf *p)
2701 {
2702 	const char *old_save = time_fmt_old;
2703 	const char *new_save = time_fmt_new;
2704 
2705 	int i = 0;
2706 
2707 	if (!Eflg) {
2708 		time_fmt_old = FORMAT_LONG;
2709 		time_fmt_new = FORMAT_LONG;
2710 	}
2711 
2712 	new_line();
2713 	format_time(p->lat.tv_sec, p->lat.tv_nsec);
2714 	(void) printf("         timestamp: atime        %s\n", time_buf);
2715 	format_time(p->lct.tv_sec, p->lct.tv_nsec);
2716 	(void) printf("         timestamp: ctime        %s\n", time_buf);
2717 	format_time(p->lmt.tv_sec, p->lmt.tv_nsec);
2718 	(void) printf("         timestamp: mtime        %s\n", time_buf);
2719 	if (p->extm != NULL) {
2720 		while (p->extm[i].nstm != 0 && i < sacnt) {
2721 			format_time(p->extm[i].stm, p->extm[i].nstm);
2722 			if (p->extm[i].name != NULL) {
2723 				(void) printf("         timestamp:"
2724 				    " %s        %s\n",
2725 				    p->extm[i].name, time_buf);
2726 			}
2727 			i++;
2728 		}
2729 	}
2730 
2731 	time_fmt_old = old_save;
2732 	time_fmt_new = new_save;
2733 }
2734 
2735 /*
2736  * Check if color definition applies to entry, returns 1 if yes, 0 if no
2737  */
2738 static int
2739 color_match(const char *fname, mode_t mode, ls_color_t *color)
2740 {
2741 	switch (color->ftype) {
2742 	case LS_PAT:
2743 	{
2744 		size_t	fname_len, sfx_len;
2745 
2746 		fname_len = strlen(fname);
2747 		sfx_len = strlen(color->sfx);
2748 		if (sfx_len > fname_len)
2749 			return (0);
2750 
2751 		if (strcmp(color->sfx, fname + fname_len - sfx_len) == 0)
2752 			return (1);
2753 		else
2754 			return (0);
2755 	}
2756 
2757 	case LS_NORMAL:
2758 		return (1);
2759 
2760 	case LS_FILE:
2761 		return (S_ISREG(mode));
2762 
2763 	case LS_DIR:
2764 		return (S_ISDIR(mode));
2765 
2766 	case LS_LINK:
2767 		return (S_ISLNK(mode));
2768 
2769 	case LS_FIFO:
2770 		return (S_ISFIFO(mode));
2771 
2772 	case LS_SOCK:
2773 		return (S_ISSOCK(mode));
2774 
2775 	case LS_DOOR:
2776 		return (S_ISDOOR(mode));
2777 
2778 	case LS_BLK:
2779 		return (S_ISBLK(mode));
2780 
2781 	case LS_CHR:
2782 		return (S_ISCHR(mode));
2783 
2784 	case LS_PORT:
2785 		return (S_ISPORT(mode));
2786 
2787 	case LS_ORPHAN:
2788 		/* this is tested for by gstat */
2789 		return (0);
2790 
2791 	case LS_SETUID:
2792 		return (!S_ISLNK(mode) && (mode & S_ISUID));
2793 
2794 	case LS_SETGID:
2795 		return (!S_ISLNK(mode) && (mode & S_ISGID));
2796 
2797 	case LS_STICKY_OTHER_WRITABLE:
2798 		return (!S_ISLNK(mode) && (mode & (S_IWOTH|S_ISVTX)));
2799 
2800 	case LS_OTHER_WRITABLE:
2801 		return (!S_ISLNK(mode) && (mode & S_IWOTH));
2802 
2803 	case LS_STICKY:
2804 		return (!S_ISLNK(mode) && (mode & S_ISVTX));
2805 
2806 	case LS_EXEC:
2807 		return (!S_ISLNK(mode) && (mode & (S_IXUSR|S_IXGRP|S_IXOTH)));
2808 	}
2809 
2810 	return (0);
2811 }
2812 
2813 static void
2814 dump_color(ls_color_t *c)
2815 {
2816 	if (c == NULL)
2817 		return;
2818 
2819 	(void) printf("\n\ttype: ");
2820 	switch (c->ftype) {
2821 	case LS_NORMAL:
2822 		(void) printf("LS_NORMAL");
2823 		break;
2824 	case LS_FILE:
2825 		(void) printf("LS_FILE");
2826 		break;
2827 	case LS_EXEC:
2828 		(void) printf("LS_EXEC");
2829 		break;
2830 	case LS_DIR:
2831 		(void) printf("LS_DIR");
2832 		break;
2833 	case LS_LINK:
2834 		(void) printf("LS_LINK");
2835 		break;
2836 
2837 	case LS_FIFO:
2838 		(void) printf("LS_FIFO");
2839 		break;
2840 
2841 	case LS_SOCK:
2842 		(void) printf("LS_SOCK");
2843 		break;
2844 
2845 	case LS_DOOR:
2846 		(void) printf("LS_DOOR");
2847 		break;
2848 
2849 	case LS_BLK:
2850 		(void) printf("LS_BLK");
2851 		break;
2852 
2853 	case LS_CHR:
2854 		(void) printf("LS_CHR");
2855 		break;
2856 
2857 	case LS_PORT:
2858 		(void) printf("LS_PORT");
2859 		break;
2860 
2861 	case LS_STICKY:
2862 		(void) printf("LS_STICKY");
2863 		break;
2864 
2865 	case LS_ORPHAN:
2866 		(void) printf("LS_ORPHAN");
2867 		break;
2868 
2869 	case LS_SETGID:
2870 		(void) printf("LS_SETGID");
2871 		break;
2872 
2873 	case LS_SETUID:
2874 		(void) printf("LS_SETUID");
2875 		break;
2876 
2877 	case LS_OTHER_WRITABLE:
2878 		(void) printf("LS_OTHER_WRITABLE");
2879 		break;
2880 
2881 	case LS_STICKY_OTHER_WRITABLE:
2882 		(void) printf("LS_STICKY_OTHER_WRITABLE");
2883 		break;
2884 
2885 	case LS_PAT:
2886 		(void) printf("LS_PAT\n");
2887 		(void) printf("\tpattern: %s", c->sfx);
2888 		break;
2889 	}
2890 	(void) printf("\n");
2891 	(void) printf("\tattr: %d\n", c->attr);
2892 	(void) printf("\tfg: %d\n", c->fg);
2893 	(void) printf("\tbg: %d\n", c->bg);
2894 	(void) printf("\t");
2895 }
2896 
2897 static ls_color_t *
2898 ls_color_find(const char *fname, mode_t mode)
2899 {
2900 	int i;
2901 
2902 	/*
2903 	 * Colors are sorted from most general lsc_colors[0] to most specific
2904 	 * lsc_colors[lsc_ncolors - 1] by ls_color_init().  Start search with
2905 	 * most specific color rule and work towards most general.
2906 	 */
2907 	for (i = lsc_ncolors - 1; i >= 0; --i)
2908 		if (color_match(fname, mode, &lsc_colors[i]))
2909 			return (&lsc_colors[i]);
2910 
2911 	return (NULL);
2912 }
2913 
2914 static void
2915 ls_tprint(char *str, long int p1, long int p2, long int p3, long int p4,
2916     long int p5, long int p6, long int p7, long int p8, long int p9)
2917 {
2918 	char *s;
2919 
2920 	if (str == NULL)
2921 		return;
2922 
2923 	s = tparm(str, p1, p2, p3, p4, p5, p6, p7, p8, p9);
2924 
2925 	if (s != NULL)
2926 		(void) putp(s);
2927 }
2928 
2929 static void
2930 ls_start_color(ls_color_t *c)
2931 {
2932 	if (c == NULL)
2933 		return;
2934 
2935 	if (lsc_debug)
2936 		lsc_match = c;
2937 
2938 	if (c->attr & LSA_BOLD)
2939 		ls_tprint(lsc_bold, 0, 0, 0, 0, 0, 0, 0, 0, 0);
2940 	if (c->attr & LSA_UNDERSCORE)
2941 		ls_tprint(lsc_underline, 0, 0, 0, 0, 0, 0, 0, 0, 0);
2942 	if (c->attr & LSA_BLINK)
2943 		ls_tprint(lsc_blink, 0, 0, 0, 0, 0, 0, 0, 0, 0);
2944 	if (c->attr & LSA_REVERSE)
2945 		ls_tprint(lsc_reverse, 0, 0, 0, 0, 0, 0, 0, 0, 0);
2946 	if (c->attr & LSA_CONCEALED)
2947 		ls_tprint(lsc_concealed, 0, 0, 0, 0, 0, 0, 0, 0, 0);
2948 	if (c->attr == LSA_NONE)
2949 		ls_tprint(lsc_none, 0, 0, 0, 0, 0, 0, 0, 0, 0);
2950 
2951 	if (c->fg != -1)
2952 		ls_tprint(lsc_setfg, c->fg, 0, 0, 0, 0, 0, 0, 0, 0);
2953 	if (c->bg != -1)
2954 		ls_tprint(lsc_setbg, c->bg, 0, 0, 0, 0, 0, 0, 0, 0);
2955 }
2956 
2957 static void
2958 ls_end_color()
2959 {
2960 	ls_tprint(lsc_none, 0, 0, 0, 0, 0, 0, 0, 0, 0);
2961 	if (lsc_debug)
2962 		dump_color(lsc_match);
2963 }
2964 
2965 static void
2966 new_color_entry(char *colorstr)
2967 {
2968 	static const struct {
2969 		const char	*s;
2970 		ls_cftype_t	stype;
2971 	} type_map[] = {
2972 		{ "no", LS_NORMAL },
2973 		{ "fi", LS_FILE },
2974 		{ "di", LS_DIR },
2975 		{ "ln", LS_LINK },
2976 		{ "pi", LS_FIFO },
2977 		{ "so", LS_SOCK },
2978 		{ "do", LS_DOOR },
2979 		{ "bd", LS_BLK },
2980 		{ "cd", LS_CHR },
2981 		{ "or", LS_ORPHAN },
2982 		{ "su", LS_SETUID },
2983 		{ "sg", LS_SETGID },
2984 		{ "tw", LS_STICKY_OTHER_WRITABLE },
2985 		{ "ow", LS_OTHER_WRITABLE },
2986 		{ "st", LS_STICKY },
2987 		{ "ex", LS_EXEC },
2988 		{ "po", LS_PORT },
2989 		{ NULL, LS_NORMAL }
2990 	};
2991 
2992 	char		*p, *lasts;
2993 	int		i;
2994 	int		color, attr;
2995 
2996 	p = strtok_r(colorstr, "=", &lasts);
2997 	if (p == NULL) {
2998 		colorflg = 0;
2999 		return;
3000 	}
3001 
3002 	if (p[0] == '*') {
3003 		lsc_colors[lsc_ncolors].ftype = LS_PAT;
3004 		/* don't include the * in the suffix */
3005 		if ((lsc_colors[lsc_ncolors].sfx = strdup(p + 1)) == NULL) {
3006 			colorflg = 0;
3007 			return;
3008 		}
3009 	} else {
3010 		lsc_colors[lsc_ncolors].sfx = NULL;
3011 
3012 		for (i = 0; type_map[i].s != NULL; ++i) {
3013 			if (strncmp(type_map[i].s, p, 2) == 0)
3014 				break;
3015 		}
3016 
3017 		/* ignore unknown file types */
3018 		if (type_map[i].s == NULL)
3019 			return;
3020 
3021 		lsc_colors[lsc_ncolors].ftype = type_map[i].stype;
3022 	}
3023 
3024 	attr = LSA_NONE;
3025 	lsc_colors[lsc_ncolors].fg = -1;
3026 	lsc_colors[lsc_ncolors].bg = -1;
3027 	for (p = strtok_r(NULL, ";", &lasts); p != NULL;
3028 	    p = strtok_r(NULL, ";", &lasts)) {
3029 		color = strtol(p, NULL, 10);
3030 
3031 		if (color < 10) {
3032 			switch (color) {
3033 			case 0:
3034 				attr = LSA_NONE;
3035 				continue;
3036 			case 1:
3037 				attr |= LSA_BOLD;
3038 				continue;
3039 			case 4:
3040 				attr |= LSA_UNDERSCORE;
3041 				continue;
3042 			case 5:
3043 				attr |= LSA_BLINK;
3044 				continue;
3045 			case 7:
3046 				attr |= LSA_REVERSE;
3047 				continue;
3048 			case 8:
3049 				attr |= LSA_CONCEALED;
3050 				continue;
3051 			default:
3052 				continue;
3053 			}
3054 		}
3055 
3056 		if (color < 40)
3057 			lsc_colors[lsc_ncolors].fg = color - 30;
3058 		else
3059 			lsc_colors[lsc_ncolors].bg = color - 40;
3060 	}
3061 
3062 	lsc_colors[lsc_ncolors].attr = attr;
3063 	++lsc_ncolors;
3064 }
3065 
3066 static int
3067 ls_color_compare(const void *p1, const void *p2)
3068 {
3069 	const ls_color_t *c1 = (const ls_color_t *)p1;
3070 	const ls_color_t *c2 = (const ls_color_t *)p2;
3071 
3072 	int ret = c1->ftype - c2->ftype;
3073 
3074 	if (ret != 0)
3075 		return (ret);
3076 
3077 	if (c1->ftype != LS_PAT)
3078 		return (ret);
3079 
3080 	return (strcmp(c1->sfx, c2->sfx));
3081 }
3082 
3083 static void
3084 ls_color_init()
3085 {
3086 	static char *default_colorstr = "no=00:fi=00:di=01;34:ln=01;36:po=01;35"
3087 	    ":pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01"
3088 	    ":su=37;41:sg=30;43:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31"
3089 	    ":*.tgz=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.zip=01;31"
3090 	    ":*.z=01;31:*.Z=01;31:*.gz=01;31:*.bz2=01;31:*.deb=01;31"
3091 	    ":*.rpm=01;31:*.jar=01;31:*.jpg=01;35:*.jpeg=01;35:*.gif=01;35"
3092 	    ":*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35"
3093 	    ":*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35"
3094 	    ":*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.avi=01;35:*.fli=01;35"
3095 	    ":*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.flac=01;35"
3096 	    ":*.mp3=01;35:*.mpc=01;35:*.ogg=01;35:*.wav=01;35";
3097 
3098 	char    *colorstr;
3099 	char    *p, *lasts;
3100 	size_t  color_sz;
3101 	int	termret;
3102 	int	i;
3103 
3104 	(void) setupterm(NULL, 1, &termret);
3105 	if (termret != 1)
3106 		return;
3107 
3108 	if ((p = getenv("LS_COLORS")) == NULL)
3109 		p = default_colorstr;
3110 	colorstr = strdup(p);
3111 	if (colorstr == NULL)
3112 		return;
3113 
3114 	/*
3115 	 * Determine the size of lsc_colors.  color_sz can be > lsc_ncolors
3116 	 * if there are invalid entries passed in the string (they are ignored)
3117 	 */
3118 	color_sz = 1;
3119 	for (p = strchr(colorstr, ':'); p != NULL && *p != '\0';
3120 	    p = strchr(++p, ':'))
3121 		++color_sz;
3122 
3123 	lsc_colors = calloc(color_sz, sizeof (ls_color_t));
3124 	if (lsc_colors == NULL) {
3125 		free(colorstr);
3126 		return;
3127 	}
3128 
3129 	for (p = strtok_r(colorstr, ":", &lasts);
3130 	    p != NULL && lsc_ncolors < color_sz;
3131 	    p = strtok_r(NULL, ":", &lasts))
3132 		new_color_entry(p);
3133 
3134 	qsort((void *)lsc_colors, lsc_ncolors, sizeof (ls_color_t),
3135 	    ls_color_compare);
3136 
3137 	for (i = 0; i < lsc_ncolors; ++i)
3138 		if (lsc_colors[i].ftype == LS_ORPHAN) {
3139 			lsc_orphan = &lsc_colors[i];
3140 			break;
3141 		}
3142 
3143 	if ((lsc_bold = tigetstr("bold")) == (char *)-1)
3144 		lsc_bold = NULL;
3145 
3146 	if ((lsc_underline = tigetstr("smul")) == (char *)-1)
3147 		lsc_underline = NULL;
3148 
3149 	if ((lsc_blink = tigetstr("blink")) == (char *)-1)
3150 		lsc_blink = NULL;
3151 
3152 	if ((lsc_reverse = tigetstr("rev")) == (char *)-1)
3153 		lsc_reverse = NULL;
3154 
3155 	if ((lsc_concealed = tigetstr("prot")) == (char *)-1)
3156 		lsc_concealed = NULL;
3157 
3158 	if ((lsc_none = tigetstr("sgr0")) == (char *)-1)
3159 		lsc_none = NULL;
3160 
3161 	if ((lsc_setfg = tigetstr("setaf")) == (char *)-1)
3162 		lsc_setfg = NULL;
3163 
3164 	if ((lsc_setbg = tigetstr("setab")) == (char *)-1)
3165 		lsc_setbg = NULL;
3166 
3167 	if (getenv("_LS_COLOR_DEBUG") != NULL) {
3168 		int i;
3169 
3170 		lsc_debug = 1;
3171 		for (i = 0; i < lsc_ncolors; ++i)
3172 			dump_color(&lsc_colors[i]);
3173 	}
3174 
3175 	free(colorstr);
3176 }
3177 
3178 /* Free extended system attribute lists */
3179 
3180 void
3181 free_sysattr(struct lbuf *p)
3182 {
3183 	int i;
3184 
3185 	if (p->exttr != NULL) {
3186 		for (i = 0; i < sacnt; i++) {
3187 			if (p->exttr[i].name != NULL)
3188 				free(p->exttr[i].name);
3189 		}
3190 		free(p->exttr);
3191 	}
3192 	if (p->extm != NULL) {
3193 		for (i = 0; i < sacnt; i++) {
3194 			if (p->extm[i].name != NULL)
3195 				free(p->extm[i].name);
3196 		}
3197 		free(p->extm);
3198 	}
3199 }
3200 
3201 /* Allocate extended system attribute list */
3202 
3203 void *
3204 xmalloc(size_t size, struct lbuf *p)
3205 {
3206 	if ((p = malloc(size)) == NULL) {
3207 		perror("ls");
3208 		free_sysattr(p);
3209 		nvlist_free(response);
3210 		exit(2);
3211 	}
3212 	return (p);
3213 }
3214