GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: bin/mv/cp.c Lines: 0 213 0.0 %
Date: 2017-11-07 Branches: 0 200 0.0 %

Line Branch Exec Source
1
/*	$OpenBSD: cp.c,v 1.7 2015/12/27 01:25:57 chl Exp $	*/
2
/*	$NetBSD: cp.c,v 1.14 1995/09/07 06:14:51 jtc Exp $	*/
3
4
/*
5
 * Copyright (c) 1988, 1993, 1994
6
 *	The Regents of the University of California.  All rights reserved.
7
 *
8
 * This code is derived from software contributed to Berkeley by
9
 * David Hitz of Auspex Systems Inc.
10
 *
11
 * Redistribution and use in source and binary forms, with or without
12
 * modification, are permitted provided that the following conditions
13
 * are met:
14
 * 1. Redistributions of source code must retain the above copyright
15
 *    notice, this list of conditions and the following disclaimer.
16
 * 2. Redistributions in binary form must reproduce the above copyright
17
 *    notice, this list of conditions and the following disclaimer in the
18
 *    documentation and/or other materials provided with the distribution.
19
 * 3. Neither the name of the University nor the names of its contributors
20
 *    may be used to endorse or promote products derived from this software
21
 *    without specific prior written permission.
22
 *
23
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33
 * SUCH DAMAGE.
34
 */
35
36
/*
37
 * Cp copies source files to target files.
38
 *
39
 * The global PATH_T structure "to" always contains the path to the
40
 * current target file.  Since fts(3) does not change directories,
41
 * this path can be either absolute or dot-relative.
42
 *
43
 * The basic algorithm is to initialize "to" and use fts(3) to traverse
44
 * the file hierarchy rooted in the argument list.  A trivial case is the
45
 * case of 'cp file1 file2'.  The more interesting case is the case of
46
 * 'cp file1 file2 ... fileN dir' where the hierarchy is traversed and the
47
 * path (relative to the root of the traversal) is appended to dir (stored
48
 * in "to") to form the final target path.
49
 */
50
51
#include <sys/types.h>
52
#include <sys/stat.h>
53
#include <sys/mman.h>
54
#include <sys/time.h>
55
56
#include <dirent.h>
57
#include <err.h>
58
#include <errno.h>
59
#include <fcntl.h>
60
#include <fts.h>
61
#include <stdio.h>
62
#include <stdlib.h>
63
#include <string.h>
64
#include <unistd.h>
65
#include <limits.h>
66
67
#define	fts_dne(_x)	(_x->fts_pointer != NULL)
68
69
typedef struct {
70
	char *p_end;                    /* pointer to NULL at end of path */
71
	char *target_end;               /* pointer to end of target base */
72
	char p_path[PATH_MAX];          /* pointer to the start of a path */
73
} PATH_T;
74
75
static PATH_T to = { to.p_path, "" };
76
77
static int     copy_fifo(struct stat *, int);
78
static int     copy_file(FTSENT *, int);
79
static int     copy_link(FTSENT *, int);
80
static int     copy_special(struct stat *, int);
81
static int     setfile(struct stat *, int);
82
83
84
extern char *__progname;
85
86
static uid_t myuid;
87
static int fflag, iflag;
88
static mode_t myumask;
89
90
enum op { FILE_TO_FILE, FILE_TO_DIR, DIR_TO_DNE };
91
92
static int copy(char *[], enum op, int);
93
static char *find_last_component(char *);
94
95
static void __dead
96
usage(void)
97
{
98
	(void)fprintf(stderr,
99
	    "usage: %s [-fip] [-R [-H | -L | -P]] source target\n", __progname);
100
	(void)fprintf(stderr,
101
	    "       %s [-fip] [-R [-H | -L | -P]] source ... directory\n",
102
	    __progname);
103
	exit(1);
104
}
105
106
int
107
cpmain(int argc, char *argv[])
108
{
109
	struct stat to_stat, tmp_stat;
110
	enum op type;
111
	int fts_options, r;
112
	char *target;
113
114
	fts_options = FTS_NOCHDIR | FTS_PHYSICAL;
115
116
	myuid = getuid();
117
118
	/* Copy the umask for explicit mode setting. */
119
	myumask = umask(0);
120
	(void)umask(myumask);
121
122
	/* Save the target base in "to". */
123
	target = argv[--argc];
124
	if (strlcpy(to.p_path, target, sizeof to.p_path) >= sizeof(to.p_path))
125
		errx(1, "%s: name too long", target);
126
	to.p_end = to.p_path + strlen(to.p_path);
127
	if (to.p_path == to.p_end) {
128
		*to.p_end++ = '.';
129
		*to.p_end = '\0';
130
	}
131
	to.target_end = to.p_end;
132
133
	/* Set end of argument list for fts(3). */
134
	argv[argc] = NULL;
135
136
	/*
137
	 * Cp has two distinct cases:
138
	 *
139
	 * cp [-R] source target
140
	 * cp [-R] source1 ... sourceN directory
141
	 *
142
	 * In both cases, source can be either a file or a directory.
143
	 *
144
	 * In (1), the target becomes a copy of the source. That is, if the
145
	 * source is a file, the target will be a file, and likewise for
146
	 * directories.
147
	 *
148
	 * In (2), the real target is not directory, but "directory/source".
149
	 */
150
	r = stat(to.p_path, &to_stat);
151
	if (r == -1 && errno != ENOENT)
152
		err(1, "%s", to.p_path);
153
	if (r == -1 || !S_ISDIR(to_stat.st_mode)) {
154
		/*
155
		 * Case (1).  Target is not a directory.
156
		 */
157
		if (argc > 1)
158
			usage();
159
		/*
160
		 * Need to detect the case:
161
		 *	cp -R dir foo
162
		 * Where dir is a directory and foo does not exist, where
163
		 * we want pathname concatenations turned on but not for
164
		 * the initial mkdir().
165
		 */
166
		if (r == -1) {
167
			lstat(*argv, &tmp_stat);
168
169
			if (S_ISDIR(tmp_stat.st_mode))
170
				type = DIR_TO_DNE;
171
			else
172
				type = FILE_TO_FILE;
173
		} else
174
			type = FILE_TO_FILE;
175
	} else {
176
		/*
177
		 * Case (2).  Target is a directory.
178
		 */
179
		type = FILE_TO_DIR;
180
	}
181
182
	return (copy(argv, type, fts_options));
183
}
184
185
static char *
186
find_last_component(char *path)
187
{
188
	char *p;
189
190
	if ((p = strrchr(path, '/')) == NULL)
191
		p = path;
192
	else {
193
		/* Special case foo/ */
194
		if (!*(p+1)) {
195
			while ((p >= path) && *p == '/')
196
				p--;
197
198
			while ((p >= path) && *p != '/')
199
				p--;
200
		}
201
202
		p++;
203
	}
204
205
	return (p);
206
}
207
208
static int
209
copy(char *argv[], enum op type, int fts_options)
210
{
211
	struct stat to_stat;
212
	FTS *ftsp;
213
	FTSENT *curr;
214
	int base, nlen, rval;
215
	char *p, *target_mid;
216
	base = 0;
217
218
	if ((ftsp = fts_open(argv, fts_options, NULL)) == NULL)
219
		err(1, NULL);
220
	for (rval = 0; (curr = fts_read(ftsp)) != NULL;) {
221
		switch (curr->fts_info) {
222
		case FTS_NS:
223
		case FTS_DNR:
224
		case FTS_ERR:
225
			warnx("%s: %s",
226
			    curr->fts_path, strerror(curr->fts_errno));
227
			rval = 1;
228
			continue;
229
		case FTS_DC:
230
			warnx("%s: directory causes a cycle", curr->fts_path);
231
			rval = 1;
232
			continue;
233
		}
234
235
		/*
236
		 * If we are in case (2) or (3) above, we need to append the
237
		 * source name to the target name.
238
		 */
239
		if (type != FILE_TO_FILE) {
240
			/*
241
			 * Need to remember the roots of traversals to create
242
			 * correct pathnames.  If there's a directory being
243
			 * copied to a non-existent directory, e.g.
244
			 *	cp -R a/dir noexist
245
			 * the resulting path name should be noexist/foo, not
246
			 * noexist/dir/foo (where foo is a file in dir), which
247
			 * is the case where the target exists.
248
			 *
249
			 * Also, check for "..".  This is for correct path
250
			 * concatenation for paths ending in "..", e.g.
251
			 *	cp -R .. /tmp
252
			 * Paths ending in ".." are changed to ".".  This is
253
			 * tricky, but seems the easiest way to fix the problem.
254
			 *
255
			 * XXX
256
			 * Since the first level MUST be FTS_ROOTLEVEL, base
257
			 * is always initialized.
258
			 */
259
			if (curr->fts_level == FTS_ROOTLEVEL) {
260
				if (type != DIR_TO_DNE) {
261
					p = find_last_component(curr->fts_path);
262
					base = p - curr->fts_path;
263
264
					if (!strcmp(&curr->fts_path[base],
265
					    ".."))
266
						base += 1;
267
				} else
268
					base = curr->fts_pathlen;
269
			}
270
271
			p = &curr->fts_path[base];
272
			nlen = curr->fts_pathlen - base;
273
			target_mid = to.target_end;
274
			if (*p != '/' && target_mid[-1] != '/')
275
				*target_mid++ = '/';
276
			*target_mid = '\0';
277
			if (target_mid - to.p_path + nlen >= PATH_MAX) {
278
				warnx("%s%s: name too long (not copied)",
279
				    to.p_path, p);
280
				rval = 1;
281
				continue;
282
			}
283
			(void)strncat(target_mid, p, nlen);
284
			to.p_end = target_mid + nlen;
285
			*to.p_end = '\0';
286
		}
287
288
		/* Not an error but need to remember it happened */
289
		if (stat(to.p_path, &to_stat) == -1) {
290
			if (curr->fts_info == FTS_DP)
291
				continue;
292
			/*
293
			 * We use fts_pointer as a boolean to indicate that
294
			 * we created this directory ourselves.  We'll use
295
			 * this later on via the fts_dne macro to decide
296
			 * whether or not to set the directory mode during
297
			 * the post-order pass.
298
			 */
299
			curr->fts_pointer = (void *)1;
300
		} else {
301
			/*
302
			 * Set directory mode/user/times on the post-order
303
			 * pass.  We can't do this earlier because the mode
304
			 * may not allow us write permission.  Furthermore,
305
			 * if we set the times during the pre-order pass,
306
			 * they will get changed later when the directory
307
			 * is populated.
308
			 */
309
			if (curr->fts_info == FTS_DP) {
310
				if (!S_ISDIR(to_stat.st_mode))
311
					continue;
312
				/*
313
				 * If not -p and directory didn't exist, set
314
				 * it to be the same as the from directory,
315
				 * unmodified by the umask; arguably wrong,
316
				 * but it's been that way forever.
317
				 */
318
				if (setfile(curr->fts_statp, -1))
319
					rval = 1;
320
				else if (fts_dne(curr))
321
					(void)chmod(to.p_path,
322
					    curr->fts_statp->st_mode);
323
				continue;
324
			}
325
			if (to_stat.st_dev == curr->fts_statp->st_dev &&
326
			    to_stat.st_ino == curr->fts_statp->st_ino) {
327
				warnx("%s and %s are identical (not copied).",
328
				    to.p_path, curr->fts_path);
329
				rval = 1;
330
				if (S_ISDIR(curr->fts_statp->st_mode))
331
					(void)fts_set(ftsp, curr, FTS_SKIP);
332
				continue;
333
			}
334
			if (!S_ISDIR(curr->fts_statp->st_mode) &&
335
			    S_ISDIR(to_stat.st_mode)) {
336
		warnx("cannot overwrite directory %s with non-directory %s",
337
				    to.p_path, curr->fts_path);
338
				rval = 1;
339
				continue;
340
			}
341
		}
342
343
		switch (curr->fts_statp->st_mode & S_IFMT) {
344
		case S_IFLNK:
345
			if (copy_link(curr, !fts_dne(curr)))
346
				rval = 1;
347
			break;
348
		case S_IFDIR:
349
			/*
350
			 * If the directory doesn't exist, create the new
351
			 * one with the from file mode plus owner RWX bits,
352
			 * modified by the umask.  Trade-off between being
353
			 * able to write the directory (if from directory is
354
			 * 555) and not causing a permissions race.  If the
355
			 * umask blocks owner writes, we fail..
356
			 */
357
			if (fts_dne(curr)) {
358
				if (mkdir(to.p_path,
359
				    curr->fts_statp->st_mode | S_IRWXU) < 0)
360
					err(1, "%s", to.p_path);
361
			} else if (!S_ISDIR(to_stat.st_mode))
362
				errc(1, ENOTDIR, "%s", to.p_path);
363
			break;
364
		case S_IFBLK:
365
		case S_IFCHR:
366
				if (copy_special(curr->fts_statp, !fts_dne(curr)))
367
					rval = 1;
368
			break;
369
		case S_IFIFO:
370
				if (copy_fifo(curr->fts_statp, !fts_dne(curr)))
371
					rval = 1;
372
			break;
373
		case S_IFSOCK:
374
			warnc(EOPNOTSUPP, "%s", curr->fts_path);
375
			break;
376
		default:
377
			if (copy_file(curr, fts_dne(curr)))
378
				rval = 1;
379
			break;
380
		}
381
	}
382
	if (errno)
383
		err(1, "fts_read");
384
	(void)fts_close(ftsp);
385
	return (rval);
386
}
387
388
389
/*	$OpenBSD: cp.c,v 1.7 2015/12/27 01:25:57 chl Exp $	*/
390
/*	$NetBSD: utils.c,v 1.6 1997/02/26 14:40:51 cgd Exp $	*/
391
392
/*-
393
 * Copyright (c) 1991, 1993, 1994
394
 *	The Regents of the University of California.  All rights reserved.
395
 *
396
 * Redistribution and use in source and binary forms, with or without
397
 * modification, are permitted provided that the following conditions
398
 * are met:
399
 * 1. Redistributions of source code must retain the above copyright
400
 *    notice, this list of conditions and the following disclaimer.
401
 * 2. Redistributions in binary form must reproduce the above copyright
402
 *    notice, this list of conditions and the following disclaimer in the
403
 *    documentation and/or other materials provided with the distribution.
404
 * 3. Neither the name of the University nor the names of its contributors
405
 *    may be used to endorse or promote products derived from this software
406
 *    without specific prior written permission.
407
 *
408
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
409
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
410
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
411
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
412
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
413
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
414
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
415
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
416
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
417
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
418
 * SUCH DAMAGE.
419
 */
420
421
#include <sys/param.h>		/* MAXBSIZE */
422
#include <sys/stat.h>
423
#include <sys/mman.h>
424
#include <sys/time.h>
425
426
#include <err.h>
427
#include <errno.h>
428
#include <fcntl.h>
429
#include <fts.h>
430
#include <stdio.h>
431
#include <stdlib.h>
432
#include <string.h>
433
#include <unistd.h>
434
#include <limits.h>
435
436
static int
437
copy_file(FTSENT *entp, int dne)
438
{
439
	static char *buf;
440
	static char *zeroes;
441
	struct stat *fs;
442
	int ch, checkch, from_fd, rcount, rval, to_fd, wcount;
443
#ifdef VM_AND_BUFFER_CACHE_SYNCHRONIZED
444
	char *p;
445
#endif
446
447
	if (!buf) {
448
		buf = malloc(MAXBSIZE);
449
		if (!buf)
450
			err(1, "malloc");
451
	}
452
	if (!zeroes) {
453
		zeroes = calloc(1, MAXBSIZE);
454
		if (!zeroes)
455
			err(1, "calloc");
456
	}
457
458
	if ((from_fd = open(entp->fts_path, O_RDONLY, 0)) == -1) {
459
		warn("%s", entp->fts_path);
460
		return (1);
461
	}
462
463
	fs = entp->fts_statp;
464
465
	/*
466
	 * In -f (force) mode, we always unlink the destination first
467
	 * if it exists.  Note that -i and -f are mutually exclusive.
468
	 */
469
	if (!dne && fflag)
470
		(void)unlink(to.p_path);
471
472
	/*
473
	 * If the file exists and we're interactive, verify with the user.
474
	 * If the file DNE, set the mode to be the from file, minus setuid
475
	 * bits, modified by the umask; arguably wrong, but it makes copying
476
	 * executables work right and it's been that way forever.  (The
477
	 * other choice is 666 or'ed with the execute bits on the from file
478
	 * modified by the umask.)
479
	 */
480
	if (!dne && !fflag) {
481
		if (iflag) {
482
			(void)fprintf(stderr, "overwrite %s? ", to.p_path);
483
			checkch = ch = getchar();
484
			while (ch != '\n' && ch != EOF)
485
				ch = getchar();
486
			if (checkch != 'y' && checkch != 'Y') {
487
				(void)close(from_fd);
488
				return (0);
489
			}
490
		}
491
		to_fd = open(to.p_path, O_WRONLY | O_TRUNC, 0);
492
	} else
493
		to_fd = open(to.p_path, O_WRONLY | O_TRUNC | O_CREAT,
494
		    fs->st_mode & ~(S_ISTXT | S_ISUID | S_ISGID));
495
496
	if (to_fd == -1) {
497
		warn("%s", to.p_path);
498
		(void)close(from_fd);
499
		return (1);
500
	}
501
502
	rval = 0;
503
504
	/*
505
	 * Mmap and write if less than 8M (the limit is so we don't totally
506
	 * trash memory on big files.  This is really a minor hack, but it
507
	 * wins some CPU back.
508
	 */
509
#ifdef VM_AND_BUFFER_CACHE_SYNCHRONIZED
510
	/* XXX broken for 0-size mmap */
511
	if (fs->st_size <= 8 * 1048576) {
512
		if ((p = mmap(NULL, (size_t)fs->st_size, PROT_READ,
513
		    MAP_FILE|MAP_SHARED, from_fd, (off_t)0)) == MAP_FAILED) {
514
			warn("mmap: %s", entp->fts_path);
515
			rval = 1;
516
		} else {
517
			madvise(p, fs->st_size, MADV_SEQUENTIAL);
518
			if (write(to_fd, p, fs->st_size) != fs->st_size) {
519
				warn("%s", to.p_path);
520
				rval = 1;
521
			}
522
			/* Some systems don't unmap on close(2). */
523
			if (munmap(p, fs->st_size) < 0) {
524
				warn("%s", entp->fts_path);
525
				rval = 1;
526
			}
527
		}
528
	} else
529
#endif
530
	{
531
		int skipholes = 0;
532
		struct stat tosb;
533
		if (!fstat(to_fd, &tosb) && S_ISREG(tosb.st_mode))
534
			skipholes = 1;
535
		while ((rcount = read(from_fd, buf, MAXBSIZE)) > 0) {
536
			if (skipholes && memcmp(buf, zeroes, rcount) == 0)
537
				wcount = lseek(to_fd, rcount, SEEK_CUR) == -1 ? -1 : rcount;
538
			else
539
				wcount = write(to_fd, buf, rcount);
540
			if (rcount != wcount || wcount == -1) {
541
				warn("%s", to.p_path);
542
				rval = 1;
543
				break;
544
			}
545
		}
546
		if (skipholes && rcount >= 0)
547
			rcount = ftruncate(to_fd, lseek(to_fd, 0, SEEK_CUR));
548
		if (rcount < 0) {
549
			warn("%s", entp->fts_path);
550
			rval = 1;
551
		}
552
	}
553
554
	if (rval == 1) {
555
		(void)close(from_fd);
556
		(void)close(to_fd);
557
		return (1);
558
	}
559
560
	if (setfile(fs, to_fd))
561
		rval = 1;
562
	(void)close(from_fd);
563
	if (close(to_fd)) {
564
		warn("%s", to.p_path);
565
		rval = 1;
566
	}
567
	return (rval);
568
}
569
570
static int
571
copy_link(FTSENT *p, int exists)
572
{
573
	int len;
574
	char linkname[PATH_MAX];
575
576
	if ((len = readlink(p->fts_path, linkname, sizeof(linkname)-1)) == -1) {
577
		warn("readlink: %s", p->fts_path);
578
		return (1);
579
	}
580
	linkname[len] = '\0';
581
	if (exists && unlink(to.p_path)) {
582
		warn("unlink: %s", to.p_path);
583
		return (1);
584
	}
585
	if (symlink(linkname, to.p_path)) {
586
		warn("symlink: %s", linkname);
587
		return (1);
588
	}
589
	return (setfile(p->fts_statp, -1));
590
}
591
592
static int
593
copy_fifo(struct stat *from_stat, int exists)
594
{
595
	if (exists && unlink(to.p_path)) {
596
		warn("unlink: %s", to.p_path);
597
		return (1);
598
	}
599
	if (mkfifo(to.p_path, from_stat->st_mode)) {
600
		warn("mkfifo: %s", to.p_path);
601
		return (1);
602
	}
603
	return (setfile(from_stat, -1));
604
}
605
606
static int
607
copy_special(struct stat *from_stat, int exists)
608
{
609
	if (exists && unlink(to.p_path)) {
610
		warn("unlink: %s", to.p_path);
611
		return (1);
612
	}
613
	if (mknod(to.p_path, from_stat->st_mode, from_stat->st_rdev)) {
614
		warn("mknod: %s", to.p_path);
615
		return (1);
616
	}
617
	return (setfile(from_stat, -1));
618
}
619
620
621
static int
622
setfile(struct stat *fs, int fd)
623
{
624
	struct timespec ts[2];
625
	int rval;
626
627
	rval = 0;
628
	fs->st_mode &= S_ISTXT | S_ISUID | S_ISGID | S_IRWXU | S_IRWXG | S_IRWXO;
629
630
	ts[0] = fs->st_atim;
631
	ts[1] = fs->st_mtim;
632
	if (fd >= 0 ? futimens(fd, ts) :
633
	    utimensat(AT_FDCWD, to.p_path, ts, AT_SYMLINK_NOFOLLOW)) {
634
		warn("update times: %s", to.p_path);
635
		rval = 1;
636
	}
637
	/*
638
	 * Changing the ownership probably won't succeed, unless we're root
639
	 * or POSIX_CHOWN_RESTRICTED is not set.  Set uid/gid before setting
640
	 * the mode; current BSD behavior is to remove all setuid bits on
641
	 * chown.  If chown fails, lose setuid/setgid bits.
642
	 */
643
	if (fd >= 0 ? fchown(fd, fs->st_uid, fs->st_gid) :
644
	    lchown(to.p_path, fs->st_uid, fs->st_gid)) {
645
		if (errno != EPERM) {
646
			warn("chown: %s", to.p_path);
647
			rval = 1;
648
		}
649
		fs->st_mode &= ~(S_ISTXT | S_ISUID | S_ISGID);
650
	}
651
	if (fd >= 0 ? fchmod(fd, fs->st_mode) :
652
	    fchmodat(AT_FDCWD, to.p_path, fs->st_mode, AT_SYMLINK_NOFOLLOW)) {
653
		warn("chmod: %s", to.p_path);
654
		rval = 1;
655
	}
656
657
	/*
658
	 * XXX
659
	 * NFS doesn't support chflags; ignore errors unless there's reason
660
	 * to believe we're losing bits.  (Note, this still won't be right
661
	 * if the server supports flags and we were trying to *remove* flags
662
	 * on a file that we copied, i.e., that we didn't create.)
663
	 */
664
	errno = 0;
665
	if (fd >= 0 ? fchflags(fd, fs->st_flags) :
666
	    chflagsat(AT_FDCWD, to.p_path, fs->st_flags, AT_SYMLINK_NOFOLLOW))
667
		if (errno != EOPNOTSUPP || fs->st_flags != 0) {
668
			warn("chflags: %s", to.p_path);
669
			rval = 1;
670
		}
671
	return (rval);
672
}