1/*
2 * Copyright (c) 1989, 1993, 1994
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Michael Fischbein.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 *    must display the following acknowledgement:
18 *	This product includes software developed by the University of
19 *	California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37#if 0
38#ifndef lint
39static char sccsid[] = "@(#)print.c	8.4 (Berkeley) 4/17/94";
40#endif /* not lint */
41#endif
42#include <sys/cdefs.h>
43__RCSID("$FreeBSD: src/bin/ls/print.c,v 1.57 2002/08/29 14:29:09 keramida Exp $");
44
45#include <sys/param.h>
46#include <sys/stat.h>
47#ifdef __APPLE__
48#include <sys/acl.h>
49#include <sys/xattr.h>
50#include <sys/types.h>
51#include <grp.h>
52#include <pwd.h>
53#include <TargetConditionals.h>
54#if !TARGET_OS_EMBEDDED
55#include <membership.h>
56#include <membershipPriv.h>
57#endif
58#include <uuid/uuid.h>
59#endif
60
61#include <err.h>
62#include <errno.h>
63#include <fts.h>
64#include <math.h>
65#include <langinfo.h>
66#include <libutil.h>
67#include <stdio.h>
68#include <stdlib.h>
69#include <string.h>
70#include <time.h>
71#include <unistd.h>
72#ifdef COLORLS
73#include <ctype.h>
74#include <termcap.h>
75#include <signal.h>
76#endif
77#include <stdint.h>		/* intmax_t */
78#include <assert.h>
79#ifdef __APPLE__
80#include <get_compat.h>
81#else
82#define COMPAT_MODE(a,b) (1)
83#endif /* __APPLE__ */
84
85#include "ls.h"
86#include "extern.h"
87
88static int	printaname(FTSENT *, u_long, u_long);
89static void	printlink(FTSENT *);
90static void	printtime(time_t);
91static int	printtype(u_int);
92static void	printsize(size_t, off_t);
93#ifdef COLORLS
94static void	endcolor(int);
95static int	colortype(mode_t);
96#endif
97
98#define	IS_NOPRINT(p)	((p)->fts_number == NO_PRINT)
99
100#ifdef COLORLS
101/* Most of these are taken from <sys/stat.h> */
102typedef enum Colors {
103	C_DIR,			/* directory */
104	C_LNK,			/* symbolic link */
105	C_SOCK,			/* socket */
106	C_FIFO,			/* pipe */
107	C_EXEC,			/* executable */
108	C_BLK,			/* block special */
109	C_CHR,			/* character special */
110	C_SUID,			/* setuid executable */
111	C_SGID,			/* setgid executable */
112	C_WSDIR,		/* directory writeble to others, with sticky
113				 * bit */
114	C_WDIR,			/* directory writeble to others, without
115				 * sticky bit */
116	C_NUMCOLORS		/* just a place-holder */
117} Colors;
118
119static const char *defcolors = "exfxcxdxbxegedabagacad";
120
121/* colors for file types */
122static struct {
123	int	num[2];
124	int	bold;
125} colors[C_NUMCOLORS];
126#endif
127
128void
129printscol(DISPLAY *dp)
130{
131	FTSENT *p;
132
133	if (COMPAT_MODE("bin/ls", "Unix2003")) {
134		if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size))
135			(void)printf("total %qu\n", (u_int64_t)howmany(dp->btotal, blocksize));
136	}
137
138	for (p = dp->list; p; p = p->fts_link) {
139		if (IS_NOPRINT(p))
140			continue;
141		(void)printaname(p, dp->s_inode, dp->s_block);
142		(void)putchar('\n');
143	}
144}
145
146/*
147 * print name in current style
148 */
149static int
150printname(const char *name)
151{
152	if (f_octal || f_octal_escape)
153		return prn_octal(name);
154	else if (f_nonprint)
155		return prn_printable(name);
156	else
157		return prn_normal(name);
158}
159
160/*
161 * print access control list
162 */
163static struct {
164	acl_perm_t	perm;
165	char		*name;
166	int		flags;
167#define ACL_PERM_DIR	(1<<0)
168#define ACL_PERM_FILE	(1<<1)
169} acl_perms[] = {
170	{ACL_READ_DATA,		"read",		ACL_PERM_FILE},
171	{ACL_LIST_DIRECTORY,	"list",		ACL_PERM_DIR},
172	{ACL_WRITE_DATA,	"write",	ACL_PERM_FILE},
173	{ACL_ADD_FILE,		"add_file",	ACL_PERM_DIR},
174	{ACL_EXECUTE,		"execute",	ACL_PERM_FILE},
175	{ACL_SEARCH,		"search",	ACL_PERM_DIR},
176	{ACL_DELETE,		"delete",	ACL_PERM_FILE | ACL_PERM_DIR},
177	{ACL_APPEND_DATA,	"append",	ACL_PERM_FILE},
178	{ACL_ADD_SUBDIRECTORY,	"add_subdirectory", ACL_PERM_DIR},
179	{ACL_DELETE_CHILD,	"delete_child",	ACL_PERM_DIR},
180	{ACL_READ_ATTRIBUTES,	"readattr",	ACL_PERM_FILE | ACL_PERM_DIR},
181	{ACL_WRITE_ATTRIBUTES,	"writeattr",	ACL_PERM_FILE | ACL_PERM_DIR},
182	{ACL_READ_EXTATTRIBUTES, "readextattr",	ACL_PERM_FILE | ACL_PERM_DIR},
183	{ACL_WRITE_EXTATTRIBUTES, "writeextattr", ACL_PERM_FILE | ACL_PERM_DIR},
184	{ACL_READ_SECURITY,	"readsecurity",	ACL_PERM_FILE | ACL_PERM_DIR},
185	{ACL_WRITE_SECURITY,	"writesecurity", ACL_PERM_FILE | ACL_PERM_DIR},
186	{ACL_CHANGE_OWNER,	"chown",	ACL_PERM_FILE | ACL_PERM_DIR},
187	{0, NULL, 0}
188};
189
190static struct {
191	acl_flag_t	flag;
192	char		*name;
193	int		flags;
194} acl_flags[] = {
195	{ACL_ENTRY_FILE_INHERIT, 	"file_inherit",		ACL_PERM_DIR},
196	{ACL_ENTRY_DIRECTORY_INHERIT,	"directory_inherit",	ACL_PERM_DIR},
197	{ACL_ENTRY_LIMIT_INHERIT,	"limit_inherit",	ACL_PERM_FILE | ACL_PERM_DIR},
198	{ACL_ENTRY_ONLY_INHERIT,	"only_inherit",		ACL_PERM_DIR},
199	{0, NULL, 0}
200};
201
202static char *
203uuid_to_name(uuid_t *uu)
204{
205#if TARGET_OS_EMBEDDED
206  return strdup("<UNKNOWN>");
207#else  /* !TARGET_OS_EMBEDDED */
208  int is_gid = -1;
209  struct group *tgrp = NULL;
210  struct passwd *tpass = NULL;
211  char *name = NULL;
212  uid_t id;
213
214
215#define MAXNAMETAG (MAXLOGNAME + 6) /* + strlen("group:") */
216  name = (char *) malloc(MAXNAMETAG);
217
218  if (NULL == name)
219	  err(1, "malloc");
220
221	if (!f_numericonly) {
222  if (0 != mbr_uuid_to_id(*uu, &id, &is_gid))
223	  goto errout;
224	}
225
226  switch (is_gid) {
227  case ID_TYPE_UID:
228	  tpass = getpwuid(id);
229	  if (!tpass) {
230		  goto errout;
231	  }
232	  snprintf(name, MAXNAMETAG, "%s:%s", "user", tpass->pw_name);
233	  break;
234  case ID_TYPE_GID:
235	  tgrp = getgrgid((gid_t) id);
236	  if (!tgrp) {
237		  goto errout;
238	  }
239	  snprintf(name, MAXNAMETAG, "%s:%s", "group", tgrp->gr_name);
240	  break;
241  default:
242		goto errout;
243  }
244  return name;
245 errout:
246  uuid_unparse_upper(*uu, name);
247  return name;
248#endif	/* !TARGET_OS_EMBEDDED */
249}
250
251static void
252printxattr(DISPLAY *dp, char *filename, ssize_t xattr)
253{
254	int flags = XATTR_NOFOLLOW;
255	char *buf = malloc(xattr);
256
257	if (NULL == buf)
258		err(1, "malloc");
259	if (listxattr(filename, buf, xattr, flags) > 0) {
260		char *name;
261		for (name = buf; name < buf+xattr; name += strlen(name) + 1) {
262			ssize_t size = getxattr(filename, name, 0, 0, 0, flags);
263			putchar('\t');
264			printname(name);
265			putchar('\t');
266			printsize(dp->s_size, size);
267			putchar('\n');
268		}
269	}
270	free(buf);
271}
272
273static void
274printacl(acl_t acl, int isdir)
275{
276	acl_entry_t	entry = NULL;
277	int		index;
278	uuid_t		*applicable;
279	char		*name = NULL;
280	acl_tag_t	tag;
281	acl_flagset_t	flags;
282	acl_permset_t	perms;
283	char		*type;
284	int		i, first;
285
286
287	for (index = 0;
288	     acl_get_entry(acl, entry == NULL ? ACL_FIRST_ENTRY : ACL_NEXT_ENTRY, &entry) == 0;
289	     index++) {
290		if (acl_get_tag_type(entry, &tag) != 0)
291			continue;
292		if (acl_get_flagset_np(entry, &flags) != 0)
293			continue;
294		if (acl_get_permset(entry, &perms) != 0)
295			continue;
296		if ((applicable = (uuid_t *) acl_get_qualifier(entry)) == NULL)
297			continue;
298		name = uuid_to_name(applicable);
299		acl_free(applicable);
300		switch(tag) {
301		case ACL_EXTENDED_ALLOW:
302			type = "allow";
303			break;
304		case ACL_EXTENDED_DENY:
305			type = "deny";
306			break;
307		default:
308			type = "unknown";
309		}
310
311		(void)printf(" %d: %s%s %s ",
312		    index,
313		    name,
314		    acl_get_flag_np(flags, ACL_ENTRY_INHERITED) ? " inherited" : "",
315		    type);
316
317		if (name)
318			free(name);
319
320		for (i = 0, first = 0; acl_perms[i].name != NULL; i++) {
321			if (acl_get_perm_np(perms, acl_perms[i].perm) == 0)
322				continue;
323			if (!(acl_perms[i].flags & (isdir ? ACL_PERM_DIR : ACL_PERM_FILE)))
324				continue;
325			(void)printf("%s%s", first++ ? "," : "", acl_perms[i].name);
326		}
327		for (i = 0; acl_flags[i].name != NULL; i++) {
328			if (acl_get_flag_np(flags, acl_flags[i].flag) == 0)
329				continue;
330			if (!(acl_flags[i].flags & (isdir ? ACL_PERM_DIR : ACL_PERM_FILE)))
331				continue;
332			(void)printf("%s%s", first++ ? "," : "", acl_flags[i].name);
333		}
334
335		(void)putchar('\n');
336	}
337
338}
339
340void
341printlong(DISPLAY *dp)
342{
343	struct stat *sp;
344	FTSENT *p;
345	NAMES *np;
346	char buf[20];
347#ifdef __APPLE__
348	acl_t acl = NULL;
349	acl_entry_t dummy;
350	char full_path[MAXPATHLEN];
351	char *filename;
352	ssize_t xattr = 0;
353	char str[2];
354#endif
355#ifdef COLORLS
356	int color_printed = 0;
357#endif
358
359	if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size))
360		(void)printf("total %qu\n", (u_int64_t)howmany(dp->btotal, blocksize));
361
362	for (p = dp->list; p; p = p->fts_link) {
363		if (IS_NOPRINT(p))
364			continue;
365		sp = p->fts_statp;
366		if (f_inode)
367#if _DARWIN_FEATURE_64_BIT_INODE
368			(void)printf("%*llu ", dp->s_inode, (u_quad_t)sp->st_ino);
369#else
370			(void)printf("%*lu ", dp->s_inode, (u_long)sp->st_ino);
371#endif
372		if (f_size)
373			(void)printf("%*qu ",
374			    dp->s_block, (u_int64_t)howmany(sp->st_blocks, blocksize));
375		strmode(sp->st_mode, buf);
376		np = p->fts_pointer;
377#ifdef __APPLE__
378		buf[10] = '\0';	/* make +/@ abut the mode */
379		filename = p->fts_name;
380		if (p->fts_level != FTS_ROOTLEVEL)
381		{
382		    snprintf(full_path, sizeof full_path, "%s/%s",
383			    p->fts_parent->fts_accpath, p->fts_name);
384		    filename = full_path;
385		}
386		/* symlinks can not have ACLs */
387		acl = acl_get_link_np(filename, ACL_TYPE_EXTENDED);
388		if (acl && acl_get_entry(acl, ACL_FIRST_ENTRY, &dummy) == -1) {
389			acl_free(acl);
390			acl = NULL;
391		}
392		xattr = listxattr(filename, NULL, 0, XATTR_NOFOLLOW);
393		if (xattr < 0)
394			xattr = 0;
395		str[1] = '\0';
396		if (xattr > 0)
397			str[0] = '@';
398		else if (acl != NULL)
399			str[0] = '+';
400		else
401			str[0] = ' ';
402#endif /* __APPLE__ */
403		if (f_group && f_owner) {	/* means print neither */
404#ifdef __APPLE__
405			(void)printf("%s%s %*u   ", buf, str, dp->s_nlink,
406				     sp->st_nlink);
407#else  /* ! __APPLE__ */
408			(void)printf("%s %*u   ", buf, dp->s_nlink,
409				     sp->st_nlink);
410#endif /* __APPLE__ */
411		}
412		else if (f_group) {
413#ifdef __APPLE__
414			(void)printf("%s%s %*u %-*s  ", buf, str, dp->s_nlink,
415				     sp->st_nlink, dp->s_group, np->group);
416#else  /* ! __APPLE__ */
417			(void)printf("%s %*u %-*s  ", buf, dp->s_nlink,
418				     sp->st_nlink, dp->s_group, np->group);
419#endif /* __APPLE__ */
420		}
421		else if (f_owner) {
422#ifdef __APPLE__
423			(void)printf("%s%s %*u %-*s  ", buf, str, dp->s_nlink,
424				     sp->st_nlink, dp->s_user, np->user);
425#else  /* ! __APPLE__ */
426			(void)printf("%s %*u %-*s  ", buf, dp->s_nlink,
427				     sp->st_nlink, dp->s_user, np->user);
428#endif /* __APPLE__ */
429		}
430		else {
431#ifdef __APPLE__
432			(void)printf("%s%s %*u %-*s  %-*s  ", buf, str, dp->s_nlink,
433				     sp->st_nlink, dp->s_user, np->user, dp->s_group,
434				     np->group);
435#else  /* ! __APPLE__ */
436			(void)printf("%s %*u %-*s  %-*s  ", buf, dp->s_nlink,
437				     sp->st_nlink, dp->s_user, np->user, dp->s_group,
438				     np->group);
439#endif /* ! __APPLE__ */
440		}
441		if (f_flags)
442			(void)printf("%-*s ", dp->s_flags, np->flags);
443		if (S_ISCHR(sp->st_mode) || S_ISBLK(sp->st_mode))
444			if (minor(sp->st_rdev) > 255 || minor(sp->st_rdev) < 0)
445				(void)printf("%3d, 0x%08x ",
446				    major(sp->st_rdev),
447				    (u_int)minor(sp->st_rdev));
448			else
449				(void)printf("%3d, %3d ",
450				    major(sp->st_rdev), minor(sp->st_rdev));
451		else if (dp->bcfile)
452			(void)printf("%*s%*qu ",
453			    8 - dp->s_size, "", dp->s_size, (u_int64_t)sp->st_size);
454		else
455			printsize(dp->s_size, sp->st_size);
456		if (f_accesstime)
457			printtime(sp->st_atime);
458		else if (f_statustime)
459			printtime(sp->st_ctime);
460		else if (f_birthtime)
461			printtime(sp->st_birthtime);
462		else
463			printtime(sp->st_mtime);
464#ifdef COLORLS
465		if (f_color)
466			color_printed = colortype(sp->st_mode);
467#endif
468		(void)printname(p->fts_name);
469#ifdef COLORLS
470		if (f_color && color_printed)
471			endcolor(0);
472#endif
473		if (f_type)
474			(void)printtype(sp->st_mode);
475		if (S_ISLNK(sp->st_mode))
476			printlink(p);
477		(void)putchar('\n');
478#ifdef __APPLE__
479		if (f_xattr && xattr) {
480			printxattr(dp, filename, xattr);
481		}
482		if (acl != NULL) {
483			if (f_acl)
484				printacl(acl, S_ISDIR(sp->st_mode));
485			acl_free(acl);
486			acl = NULL;
487		}
488#endif /* __APPLE__ */
489	}
490}
491
492void
493printstream(DISPLAY *dp)
494{
495	FTSENT *p;
496	extern int termwidth;
497	int chcnt;
498
499	for (p = dp->list, chcnt = 0; p; p = p->fts_link) {
500		if (p->fts_number == NO_PRINT)
501			continue;
502		if (strlen(p->fts_name) + chcnt +
503		    (p->fts_link ? 2 : 0) >= (unsigned)termwidth) {
504			putchar('\n');
505			chcnt = 0;
506		}
507		chcnt += printaname(p, dp->s_inode, dp->s_block);
508		if (p->fts_link) {
509			printf(", ");
510			chcnt += 2;
511		}
512	}
513	if (chcnt)
514		putchar('\n');
515}
516
517void
518printcol(DISPLAY *dp)
519{
520	extern int termwidth;
521	static FTSENT **array;
522	static int lastentries = -1;
523	FTSENT *p;
524	int base;
525	int chcnt;
526	int cnt;
527	int col;
528	int colwidth;
529	int endcol;
530	int num;
531	int numcols;
532	int numrows;
533	int row;
534	int tabwidth;
535
536	if (f_notabs)
537		tabwidth = 1;
538	else
539		tabwidth = 8;
540
541	/*
542	 * Have to do random access in the linked list -- build a table
543	 * of pointers.
544	 */
545	if ((lastentries == -1) || (dp->entries > lastentries)) {
546		lastentries = dp->entries;
547		if ((array =
548		    realloc(array, dp->entries * sizeof(FTSENT *))) == NULL) {
549			warn(NULL);
550			printscol(dp);
551		}
552	}
553	for (p = dp->list, num = 0; p; p = p->fts_link)
554		if (p->fts_number != NO_PRINT)
555			array[num++] = p;
556
557	colwidth = dp->maxlen;
558	if (f_inode)
559		colwidth += dp->s_inode + 1;
560	if (f_size)
561		colwidth += dp->s_block + 1;
562	if (f_type)
563		colwidth += 1;
564
565	colwidth = (colwidth + tabwidth) & ~(tabwidth - 1);
566	if (termwidth < 2 * colwidth) {
567		printscol(dp);
568		return;
569	}
570	numcols = termwidth / colwidth;
571	numrows = num / numcols;
572	if (num % numcols)
573		++numrows;
574
575	assert(dp->list);
576	if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size))
577		(void)printf("total %qu\n", (u_int64_t)howmany(dp->btotal, blocksize));
578
579	base = 0;
580	for (row = 0; row < numrows; ++row) {
581		endcol = colwidth;
582		if (!f_sortacross)
583			base = row;
584		for (col = 0, chcnt = 0; col < numcols; ++col) {
585			chcnt += printaname(array[base], dp->s_inode,
586			    dp->s_block);
587			if (f_sortacross)
588				base++;
589			else
590				base += numrows;
591			if (base >= num)
592				break;
593			while ((cnt = ((chcnt + tabwidth) & ~(tabwidth - 1)))
594			    <= endcol) {
595				if (f_sortacross && col + 1 >= numcols)
596					break;
597				(void)putchar(f_notabs ? ' ' : '\t');
598				chcnt = cnt;
599			}
600			endcol += colwidth;
601		}
602		(void)putchar('\n');
603	}
604}
605
606/*
607 * print [inode] [size] name
608 * return # of characters printed, no trailing characters.
609 */
610static int
611printaname(FTSENT *p, u_long inodefield, u_long sizefield)
612{
613	struct stat *sp;
614	int chcnt;
615#ifdef COLORLS
616	int color_printed = 0;
617#endif
618
619	sp = p->fts_statp;
620	chcnt = 0;
621	if (f_inode)
622#if _DARWIN_FEATURE_64_BIT_INODE
623		chcnt += printf("%*llu ", (int)inodefield, (u_quad_t)sp->st_ino);
624#else
625		chcnt += printf("%*lu ", (int)inodefield, (u_long)sp->st_ino);
626#endif
627	if (f_size)
628		chcnt += printf("%*qu ",
629		    (int)sizefield, (u_int64_t)howmany(sp->st_blocks, blocksize));
630#ifdef COLORLS
631	if (f_color)
632		color_printed = colortype(sp->st_mode);
633#endif
634	chcnt += printname(p->fts_name);
635#ifdef COLORLS
636	if (f_color && color_printed)
637		endcolor(0);
638#endif
639	if (f_type)
640		chcnt += printtype(sp->st_mode);
641	return (chcnt);
642}
643
644static void
645printtime(time_t ftime)
646{
647	char longstring[80];
648	static time_t now;
649	const char *format;
650	static int d_first = -1;
651
652	if (d_first < 0)
653		d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
654	if (now == 0)
655		now = time(NULL);
656
657#define	SIXMONTHS	((365 / 2) * 86400)
658	if (f_sectime)
659		/* mmm dd hh:mm:ss yyyy || dd mmm hh:mm:ss yyyy */
660		format = d_first ? "%e %b %T %Y " : "%b %e %T %Y ";
661	else if (COMPAT_MODE("bin/ls", "Unix2003")) {
662		if (ftime + SIXMONTHS > now && ftime <= now)
663			/* mmm dd hh:mm || dd mmm hh:mm */
664			format = d_first ? "%e %b %R " : "%b %e %R ";
665		else
666			/* mmm dd  yyyy || dd mmm  yyyy */
667			format = d_first ? "%e %b  %Y " : "%b %e  %Y ";
668	}
669	else if (ftime + SIXMONTHS > now && ftime < now + SIXMONTHS)
670		/* mmm dd hh:mm || dd mmm hh:mm */
671		format = d_first ? "%e %b %R " : "%b %e %R ";
672	else
673		/* mmm dd  yyyy || dd mmm  yyyy */
674		format = d_first ? "%e %b  %Y " : "%b %e  %Y ";
675	strftime(longstring, sizeof(longstring), format, localtime(&ftime));
676	fputs(longstring, stdout);
677}
678
679static int
680printtype(u_int mode)
681{
682
683	if (f_slash) {
684		if ((mode & S_IFMT) == S_IFDIR) {
685			(void)putchar('/');
686			return (1);
687		}
688		return (0);
689	}
690
691	switch (mode & S_IFMT) {
692	case S_IFDIR:
693		(void)putchar('/');
694		return (1);
695	case S_IFIFO:
696		(void)putchar('|');
697		return (1);
698	case S_IFLNK:
699		(void)putchar('@');
700		return (1);
701	case S_IFSOCK:
702		(void)putchar('=');
703		return (1);
704	case S_IFWHT:
705		(void)putchar('%');
706		return (1);
707	default:
708		break;
709	}
710	if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) {
711		(void)putchar('*');
712		return (1);
713	}
714	return (0);
715}
716
717#ifdef COLORLS
718static int
719putch(int c)
720{
721	(void)putchar(c);
722	return 0;
723}
724
725static int
726writech(int c)
727{
728	char tmp = c;
729
730	(void)write(STDOUT_FILENO, &tmp, 1);
731	return 0;
732}
733
734static void
735printcolor(Colors c)
736{
737	char *ansiseq;
738
739	if (colors[c].bold)
740		tputs(enter_bold, 1, putch);
741
742	if (colors[c].num[0] != -1) {
743		ansiseq = tgoto(ansi_fgcol, 0, colors[c].num[0]);
744		if (ansiseq)
745			tputs(ansiseq, 1, putch);
746	}
747	if (colors[c].num[1] != -1) {
748		ansiseq = tgoto(ansi_bgcol, 0, colors[c].num[1]);
749		if (ansiseq)
750			tputs(ansiseq, 1, putch);
751	}
752}
753
754static void
755endcolor(int sig)
756{
757	tputs(ansi_coloff, 1, sig ? writech : putch);
758	tputs(attrs_off, 1, sig ? writech : putch);
759}
760
761static int
762colortype(mode_t mode)
763{
764	switch (mode & S_IFMT) {
765	case S_IFDIR:
766		if (mode & S_IWOTH)
767			if (mode & S_ISTXT)
768				printcolor(C_WSDIR);
769			else
770				printcolor(C_WDIR);
771		else
772			printcolor(C_DIR);
773		return (1);
774	case S_IFLNK:
775		printcolor(C_LNK);
776		return (1);
777	case S_IFSOCK:
778		printcolor(C_SOCK);
779		return (1);
780	case S_IFIFO:
781		printcolor(C_FIFO);
782		return (1);
783	case S_IFBLK:
784		printcolor(C_BLK);
785		return (1);
786	case S_IFCHR:
787		printcolor(C_CHR);
788		return (1);
789	}
790	if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) {
791		if (mode & S_ISUID)
792			printcolor(C_SUID);
793		else if (mode & S_ISGID)
794			printcolor(C_SGID);
795		else
796			printcolor(C_EXEC);
797		return (1);
798	}
799	return (0);
800}
801
802void
803parsecolors(const char *cs)
804{
805	int i;
806	int j;
807	int len;
808	char c[2];
809	short legacy_warn = 0;
810
811	if (cs == NULL)
812		cs = "";	/* LSCOLORS not set */
813	len = strlen(cs);
814	for (i = 0; i < C_NUMCOLORS; i++) {
815		colors[i].bold = 0;
816
817		if (len <= 2 * i) {
818			c[0] = defcolors[2 * i];
819			c[1] = defcolors[2 * i + 1];
820		} else {
821			c[0] = cs[2 * i];
822			c[1] = cs[2 * i + 1];
823		}
824		for (j = 0; j < 2; j++) {
825			/* Legacy colours used 0-7 */
826			if (c[j] >= '0' && c[j] <= '7') {
827				colors[i].num[j] = c[j] - '0';
828				if (!legacy_warn) {
829					fprintf(stderr,
830					    "warn: LSCOLORS should use "
831					    "characters a-h instead of 0-9 ("
832					    "see the manual page)\n");
833				}
834				legacy_warn = 1;
835			} else if (c[j] >= 'a' && c[j] <= 'h')
836				colors[i].num[j] = c[j] - 'a';
837			else if (c[j] >= 'A' && c[j] <= 'H') {
838				colors[i].num[j] = c[j] - 'A';
839				colors[i].bold = 1;
840			} else if (tolower((unsigned char)c[j] == 'x'))
841				colors[i].num[j] = -1;
842			else {
843				fprintf(stderr,
844				    "error: invalid character '%c' in LSCOLORS"
845				    " env var\n", c[j]);
846				colors[i].num[j] = -1;
847			}
848		}
849	}
850}
851
852void
853colorquit(int sig)
854{
855	endcolor(sig);
856
857	(void)signal(sig, SIG_DFL);
858	(void)kill(getpid(), sig);
859}
860
861#endif /* COLORLS */
862
863static void
864printlink(FTSENT *p)
865{
866	int lnklen;
867	char name[MAXPATHLEN + 1];
868	char path[MAXPATHLEN + 1];
869
870	if (p->fts_level == FTS_ROOTLEVEL)
871		(void)snprintf(name, sizeof(name), "%s", p->fts_name);
872	else
873		(void)snprintf(name, sizeof(name),
874		    "%s/%s", p->fts_parent->fts_accpath, p->fts_name);
875	if ((lnklen = readlink(name, path, sizeof(path) - 1)) == -1) {
876		(void)fprintf(stderr, "\nls: %s: %s\n", name, strerror(errno));
877		return;
878	}
879	path[lnklen] = '\0';
880	(void)printf(" -> ");
881	(void)printname(path);
882}
883
884static void
885printsize(size_t width, off_t bytes)
886{
887
888  if (f_humanval) {
889    char buf[5];
890
891    humanize_number(buf, sizeof(buf), (int64_t)bytes, "",
892		    HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL);
893    (void)printf("%5s ", buf);
894  } else
895    (void)printf("%*jd ", (u_int)width, (intmax_t)bytes);
896}
897