1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-NetBSD
3 *
4 * Copyright (c) 2002 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Andrew Brown.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 #if 0
34 #ifndef lint
35 __RCSID("$NetBSD: stat.c,v 1.33 2011/01/15 22:54:10 njoly Exp $"
36 "$OpenBSD: stat.c,v 1.14 2009/06/24 09:44:25 sobrado Exp $");
37 #endif
38 #endif
39
40 __FBSDID("$FreeBSD$");
41
42 #if HAVE_CONFIG_H
43 #include "config.h"
44 #else /* HAVE_CONFIG_H */
45 #define HAVE_STRUCT_STAT_ST_FLAGS 1
46 #define HAVE_STRUCT_STAT_ST_GEN 1
47 #define HAVE_STRUCT_STAT_ST_BIRTHTIME 1
48 #define HAVE_STRUCT_STAT_ST_MTIMENSEC 1
49 #define HAVE_DEVNAME 1
50 #endif /* HAVE_CONFIG_H */
51
52 #include <sys/param.h>
53 #include <sys/types.h>
54 #include <sys/stat.h>
55 #include <sys/mount.h>
56
57 #include <ctype.h>
58 #include <err.h>
59 #include <errno.h>
60 #include <grp.h>
61 #include <limits.h>
62 #include <locale.h>
63 #include <paths.h>
64 #include <pwd.h>
65 #include <stdio.h>
66 #include <stdlib.h>
67 #include <string.h>
68 #include <time.h>
69 #include <unistd.h>
70
71 #if HAVE_STRUCT_STAT_ST_FLAGS
72 #define DEF_F "%#Xf "
73 #define RAW_F "%f "
74 #define SHELL_F " st_flags=%f"
75 #else /* HAVE_STRUCT_STAT_ST_FLAGS */
76 #define DEF_F
77 #define RAW_F
78 #define SHELL_F
79 #endif /* HAVE_STRUCT_STAT_ST_FLAGS */
80
81 #if HAVE_STRUCT_STAT_ST_BIRTHTIME
82 #define DEF_B "\"%SB\" "
83 #define RAW_B "%B "
84 #define SHELL_B "st_birthtime=%B "
85 #else /* HAVE_STRUCT_STAT_ST_BIRTHTIME */
86 #define DEF_B
87 #define RAW_B
88 #define SHELL_B
89 #endif /* HAVE_STRUCT_STAT_ST_BIRTHTIME */
90
91 #if HAVE_STRUCT_STAT_ST_ATIM
92 #define st_atimespec st_atim
93 #define st_ctimespec st_ctim
94 #define st_mtimespec st_mtim
95 #endif /* HAVE_STRUCT_STAT_ST_ATIM */
96
97 #define DEF_FORMAT \
98 "%d %i %Sp %l %Su %Sg %r %z \"%Sa\" \"%Sm\" \"%Sc\" " DEF_B \
99 "%k %b " DEF_F "%N"
100 #define RAW_FORMAT "%d %i %#p %l %u %g %r %z %a %m %c " RAW_B \
101 "%k %b " RAW_F "%N"
102 #define LS_FORMAT "%Sp %l %Su %Sg %Z %Sm %N%SY"
103 #define LSF_FORMAT "%Sp %l %Su %Sg %Z %Sm %N%T%SY"
104 #define SHELL_FORMAT \
105 "st_dev=%d st_ino=%i st_mode=%#p st_nlink=%l " \
106 "st_uid=%u st_gid=%g st_rdev=%r st_size=%z " \
107 "st_atime=%a st_mtime=%m st_ctime=%c " SHELL_B \
108 "st_blksize=%k st_blocks=%b" SHELL_F
109 #define LINUX_FORMAT \
110 " File: \"%N\"%n" \
111 " Size: %-11z FileType: %HT%n" \
112 " Mode: (%OMp%03OLp/%.10Sp) Uid: (%5u/%8Su) Gid: (%5g/%8Sg)%n" \
113 "Device: %Hd,%Ld Inode: %i Links: %l%n" \
114 "Access: %Sa%n" \
115 "Modify: %Sm%n" \
116 "Change: %Sc%n" \
117 " Birth: %SB"
118
119 #define TIME_FORMAT "%b %e %T %Y"
120
121 #define FLAG_POUND 0x01
122 #define FLAG_SPACE 0x02
123 #define FLAG_PLUS 0x04
124 #define FLAG_ZERO 0x08
125 #define FLAG_MINUS 0x10
126
127 /*
128 * These format characters must all be unique, except the magic one.
129 */
130 #define FMT_MAGIC '%'
131 #define FMT_DOT '.'
132
133 #define SIMPLE_NEWLINE 'n'
134 #define SIMPLE_TAB 't'
135 #define SIMPLE_PERCENT '%'
136 #define SIMPLE_NUMBER '@'
137
138 #define FMT_POUND '#'
139 #define FMT_SPACE ' '
140 #define FMT_PLUS '+'
141 #define FMT_ZERO '0'
142 #define FMT_MINUS '-'
143
144 #define FMT_DECIMAL 'D'
145 #define FMT_OCTAL 'O'
146 #define FMT_UNSIGNED 'U'
147 #define FMT_HEX 'X'
148 #define FMT_FLOAT 'F'
149 #define FMT_STRING 'S'
150
151 #define FMTF_DECIMAL 0x01
152 #define FMTF_OCTAL 0x02
153 #define FMTF_UNSIGNED 0x04
154 #define FMTF_HEX 0x08
155 #define FMTF_FLOAT 0x10
156 #define FMTF_STRING 0x20
157
158 #define HIGH_PIECE 'H'
159 #define MIDDLE_PIECE 'M'
160 #define LOW_PIECE 'L'
161
162 #define SHOW_realpath 'R'
163 #define SHOW_st_dev 'd'
164 #define SHOW_st_ino 'i'
165 #define SHOW_st_mode 'p'
166 #define SHOW_st_nlink 'l'
167 #define SHOW_st_uid 'u'
168 #define SHOW_st_gid 'g'
169 #define SHOW_st_rdev 'r'
170 #define SHOW_st_atime 'a'
171 #define SHOW_st_mtime 'm'
172 #define SHOW_st_ctime 'c'
173 #define SHOW_st_btime 'B'
174 #define SHOW_st_size 'z'
175 #define SHOW_st_blocks 'b'
176 #define SHOW_st_blksize 'k'
177 #define SHOW_st_flags 'f'
178 #define SHOW_st_gen 'v'
179 #define SHOW_symlink 'Y'
180 #define SHOW_filetype 'T'
181 #define SHOW_filename 'N'
182 #define SHOW_sizerdev 'Z'
183
184 void usage(const char *);
185 void output(const struct stat *, const char *,
186 const char *, int, int);
187 int format1(const struct stat *, /* stat info */
188 const char *, /* the file name */
189 const char *, int, /* the format string itself */
190 char *, size_t, /* a place to put the output */
191 int, int, int, int, /* the parsed format */
192 int, int);
193 int hex2byte(const char [2]);
194 #if HAVE_STRUCT_STAT_ST_FLAGS
195 char *xfflagstostr(unsigned long);
196 #endif
197
198 static const char *timefmt;
199 static int linkfail;
200
201 #define addchar(s, c, nl) \
202 do { \
203 (void)fputc((c), (s)); \
204 (*nl) = ((c) == '\n'); \
205 } while (0/*CONSTCOND*/)
206
207 int
main(int argc,char * argv[])208 main(int argc, char *argv[])
209 {
210 struct stat st;
211 int ch, rc, errs, am_readlink;
212 int lsF, fmtchar, usestat, nfs_handle, fn, nonl, quiet;
213 const char *statfmt, *options, *synopsis;
214 char dname[sizeof _PATH_DEV + SPECNAMELEN] = _PATH_DEV;
215 fhandle_t fhnd;
216 const char *file;
217
218 am_readlink = 0;
219 lsF = 0;
220 fmtchar = '\0';
221 usestat = 0;
222 nfs_handle = 0;
223 nonl = 0;
224 quiet = 0;
225 linkfail = 0;
226 statfmt = NULL;
227 timefmt = NULL;
228
229 if (strcmp(getprogname(), "readlink") == 0) {
230 am_readlink = 1;
231 options = "fn";
232 synopsis = "[-fn] [file ...]";
233 statfmt = "%Y";
234 fmtchar = 'f';
235 quiet = 1;
236 } else {
237 options = "f:FHlLnqrst:x";
238 synopsis = "[-FLnq] [-f format | -l | -r | -s | -x] "
239 "[-t timefmt] [file|handle ...]";
240 }
241
242 while ((ch = getopt(argc, argv, options)) != -1)
243 switch (ch) {
244 case 'F':
245 lsF = 1;
246 break;
247 case 'H':
248 nfs_handle = 1;
249 break;
250 case 'L':
251 usestat = 1;
252 break;
253 case 'n':
254 nonl = 1;
255 break;
256 case 'q':
257 quiet = 1;
258 break;
259 case 'f':
260 if (am_readlink) {
261 statfmt = "%R";
262 break;
263 }
264 statfmt = optarg;
265 /* FALLTHROUGH */
266 case 'l':
267 case 'r':
268 case 's':
269 case 'x':
270 if (fmtchar != 0)
271 errx(1, "can't use format '%c' with '%c'",
272 fmtchar, ch);
273 fmtchar = ch;
274 break;
275 case 't':
276 timefmt = optarg;
277 break;
278 default:
279 usage(synopsis);
280 }
281
282 argc -= optind;
283 argv += optind;
284 fn = 1;
285
286 if (fmtchar == '\0') {
287 if (lsF)
288 fmtchar = 'l';
289 else {
290 fmtchar = 'f';
291 statfmt = DEF_FORMAT;
292 }
293 }
294
295 if (lsF && fmtchar != 'l')
296 errx(1, "can't use format '%c' with -F", fmtchar);
297
298 switch (fmtchar) {
299 case 'f':
300 /* statfmt already set */
301 break;
302 case 'l':
303 statfmt = lsF ? LSF_FORMAT : LS_FORMAT;
304 break;
305 case 'r':
306 statfmt = RAW_FORMAT;
307 break;
308 case 's':
309 statfmt = SHELL_FORMAT;
310 break;
311 case 'x':
312 statfmt = LINUX_FORMAT;
313 if (timefmt == NULL)
314 timefmt = "%c";
315 break;
316 default:
317 usage(synopsis);
318 /*NOTREACHED*/
319 }
320
321 if (timefmt == NULL)
322 timefmt = TIME_FORMAT;
323
324 errs = 0;
325 do {
326 if (argc == 0) {
327 if (fdevname_r(STDIN_FILENO, dname +
328 sizeof _PATH_DEV - 1, SPECNAMELEN) != NULL)
329 file = dname;
330 else
331 file = "(stdin)";
332 rc = fstat(STDIN_FILENO, &st);
333 } else {
334 int j;
335
336 file = argv[0];
337 if (nfs_handle) {
338 rc = 0;
339 bzero(&fhnd, sizeof(fhnd));
340 j = MIN(2 * sizeof(fhnd), strlen(file));
341 if ((j & 1) != 0) {
342 rc = -1;
343 } else {
344 while (j) {
345 rc = hex2byte(&file[j - 2]);
346 if (rc == -1)
347 break;
348 ((char*) &fhnd)[j / 2 - 1] = rc;
349 j -= 2;
350 }
351 }
352 if (rc == -1)
353 errno = EINVAL;
354 else
355 rc = fhstat(&fhnd, &st);
356
357 } else if (usestat) {
358 /*
359 * Try stat() and if it fails, fall back to
360 * lstat() just in case we're examining a
361 * broken symlink.
362 */
363 if ((rc = stat(file, &st)) == -1 &&
364 errno == ENOENT &&
365 (rc = lstat(file, &st)) == -1)
366 errno = ENOENT;
367 }
368 else
369 rc = lstat(file, &st);
370 }
371
372 if (rc == -1) {
373 errs = 1;
374 linkfail = 1;
375 if (!quiet)
376 warn("%s: stat", file);
377 }
378 else
379 output(&st, file, statfmt, fn, nonl);
380
381 argv++;
382 argc--;
383 fn++;
384 } while (argc > 0);
385
386 return (am_readlink ? linkfail : errs);
387 }
388
389 #if HAVE_STRUCT_STAT_ST_FLAGS
390 /*
391 * fflagstostr() wrapper that leaks only once
392 */
393 char *
xfflagstostr(unsigned long fflags)394 xfflagstostr(unsigned long fflags)
395 {
396 static char *str = NULL;
397
398 if (str != NULL)
399 free(str);
400
401 str = fflagstostr(fflags);
402 if (str == NULL)
403 err(1, "fflagstostr");
404 return (str);
405 }
406 #endif /* HAVE_STRUCT_STAT_ST_FLAGS */
407
408 void
usage(const char * synopsis)409 usage(const char *synopsis)
410 {
411
412 (void)fprintf(stderr, "usage: %s %s\n", getprogname(), synopsis);
413 exit(1);
414 }
415
416 /*
417 * Parses a format string.
418 */
419 void
output(const struct stat * st,const char * file,const char * statfmt,int fn,int nonl)420 output(const struct stat *st, const char *file,
421 const char *statfmt, int fn, int nonl)
422 {
423 int flags, size, prec, ofmt, hilo, what;
424 char buf[PATH_MAX + 4 + 1];
425 const char *subfmt;
426 int nl, t, i;
427
428 nl = 1;
429 while (*statfmt != '\0') {
430
431 /*
432 * Non-format characters go straight out.
433 */
434 if (*statfmt != FMT_MAGIC) {
435 addchar(stdout, *statfmt, &nl);
436 statfmt++;
437 continue;
438 }
439
440 /*
441 * The current format "substring" starts here,
442 * and then we skip the magic.
443 */
444 subfmt = statfmt;
445 statfmt++;
446
447 /*
448 * Some simple one-character "formats".
449 */
450 switch (*statfmt) {
451 case SIMPLE_NEWLINE:
452 addchar(stdout, '\n', &nl);
453 statfmt++;
454 continue;
455 case SIMPLE_TAB:
456 addchar(stdout, '\t', &nl);
457 statfmt++;
458 continue;
459 case SIMPLE_PERCENT:
460 addchar(stdout, '%', &nl);
461 statfmt++;
462 continue;
463 case SIMPLE_NUMBER: {
464 char num[12], *p;
465
466 snprintf(num, sizeof(num), "%d", fn);
467 for (p = &num[0]; *p; p++)
468 addchar(stdout, *p, &nl);
469 statfmt++;
470 continue;
471 }
472 }
473
474 /*
475 * This must be an actual format string. Format strings are
476 * similar to printf(3) formats up to a point, and are of
477 * the form:
478 *
479 * % required start of format
480 * [-# +0] opt. format characters
481 * size opt. field width
482 * . opt. decimal separator, followed by
483 * prec opt. precision
484 * fmt opt. output specifier (string, numeric, etc.)
485 * sub opt. sub field specifier (high, middle, low)
486 * datum required field specifier (size, mode, etc)
487 *
488 * Only the % and the datum selector are required. All data
489 * have reasonable default output forms. The "sub" specifier
490 * only applies to certain data (mode, dev, rdev, filetype).
491 * The symlink output defaults to STRING, yet will only emit
492 * the leading " -> " if STRING is explicitly specified. The
493 * sizerdev datum will generate rdev output for character or
494 * block devices, and size output for all others.
495 */
496 flags = 0;
497 do {
498 if (*statfmt == FMT_POUND)
499 flags |= FLAG_POUND;
500 else if (*statfmt == FMT_SPACE)
501 flags |= FLAG_SPACE;
502 else if (*statfmt == FMT_PLUS)
503 flags |= FLAG_PLUS;
504 else if (*statfmt == FMT_ZERO)
505 flags |= FLAG_ZERO;
506 else if (*statfmt == FMT_MINUS)
507 flags |= FLAG_MINUS;
508 else
509 break;
510 statfmt++;
511 } while (1/*CONSTCOND*/);
512
513 size = -1;
514 if (isdigit((unsigned)*statfmt)) {
515 size = 0;
516 while (isdigit((unsigned)*statfmt)) {
517 size = (size * 10) + (*statfmt - '0');
518 statfmt++;
519 if (size < 0)
520 goto badfmt;
521 }
522 }
523
524 prec = -1;
525 if (*statfmt == FMT_DOT) {
526 statfmt++;
527
528 prec = 0;
529 while (isdigit((unsigned)*statfmt)) {
530 prec = (prec * 10) + (*statfmt - '0');
531 statfmt++;
532 if (prec < 0)
533 goto badfmt;
534 }
535 }
536
537 #define fmtcase(x, y) case (y): (x) = (y); statfmt++; break
538 #define fmtcasef(x, y, z) case (y): (x) = (z); statfmt++; break
539 switch (*statfmt) {
540 fmtcasef(ofmt, FMT_DECIMAL, FMTF_DECIMAL);
541 fmtcasef(ofmt, FMT_OCTAL, FMTF_OCTAL);
542 fmtcasef(ofmt, FMT_UNSIGNED, FMTF_UNSIGNED);
543 fmtcasef(ofmt, FMT_HEX, FMTF_HEX);
544 fmtcasef(ofmt, FMT_FLOAT, FMTF_FLOAT);
545 fmtcasef(ofmt, FMT_STRING, FMTF_STRING);
546 default:
547 ofmt = 0;
548 break;
549 }
550
551 switch (*statfmt) {
552 fmtcase(hilo, HIGH_PIECE);
553 fmtcase(hilo, MIDDLE_PIECE);
554 fmtcase(hilo, LOW_PIECE);
555 default:
556 hilo = 0;
557 break;
558 }
559
560 switch (*statfmt) {
561 fmtcase(what, SHOW_realpath);
562 fmtcase(what, SHOW_st_dev);
563 fmtcase(what, SHOW_st_ino);
564 fmtcase(what, SHOW_st_mode);
565 fmtcase(what, SHOW_st_nlink);
566 fmtcase(what, SHOW_st_uid);
567 fmtcase(what, SHOW_st_gid);
568 fmtcase(what, SHOW_st_rdev);
569 fmtcase(what, SHOW_st_atime);
570 fmtcase(what, SHOW_st_mtime);
571 fmtcase(what, SHOW_st_ctime);
572 fmtcase(what, SHOW_st_btime);
573 fmtcase(what, SHOW_st_size);
574 fmtcase(what, SHOW_st_blocks);
575 fmtcase(what, SHOW_st_blksize);
576 fmtcase(what, SHOW_st_flags);
577 fmtcase(what, SHOW_st_gen);
578 fmtcase(what, SHOW_symlink);
579 fmtcase(what, SHOW_filetype);
580 fmtcase(what, SHOW_filename);
581 fmtcase(what, SHOW_sizerdev);
582 default:
583 goto badfmt;
584 }
585 #undef fmtcasef
586 #undef fmtcase
587
588 t = format1(st,
589 file,
590 subfmt, statfmt - subfmt,
591 buf, sizeof(buf),
592 flags, size, prec, ofmt, hilo, what);
593
594 for (i = 0; i < t && i < (int)(sizeof(buf) - 1); i++)
595 addchar(stdout, buf[i], &nl);
596
597 continue;
598
599 badfmt:
600 errx(1, "%.*s: bad format",
601 (int)(statfmt - subfmt + 1), subfmt);
602 }
603
604 if (!nl && !nonl)
605 (void)fputc('\n', stdout);
606 (void)fflush(stdout);
607 }
608
609 /*
610 * Arranges output according to a single parsed format substring.
611 */
612 int
format1(const struct stat * st,const char * file,const char * fmt,int flen,char * buf,size_t blen,int flags,int size,int prec,int ofmt,int hilo,int what)613 format1(const struct stat *st,
614 const char *file,
615 const char *fmt, int flen,
616 char *buf, size_t blen,
617 int flags, int size, int prec, int ofmt,
618 int hilo, int what)
619 {
620 u_int64_t data;
621 char *stmp, lfmt[24], tmp[20];
622 const char *sdata;
623 char smode[12], sid[12], path[PATH_MAX + 4];
624 const struct timespec *tsp;
625 struct timespec ts;
626 struct tm *tm;
627 int l, small, formats;
628
629 tsp = NULL;
630 formats = 0;
631 small = 0;
632
633 /*
634 * First, pick out the data and tweak it based on hilo or
635 * specified output format (symlink output only).
636 */
637 switch (what) {
638 case SHOW_st_dev:
639 case SHOW_st_rdev:
640 small = (sizeof(st->st_dev) == 4);
641 data = (what == SHOW_st_dev) ? st->st_dev : st->st_rdev;
642 #if HAVE_DEVNAME
643 sdata = (what == SHOW_st_dev) ?
644 devname(st->st_dev, S_IFBLK) :
645 devname(st->st_rdev,
646 S_ISCHR(st->st_mode) ? S_IFCHR :
647 S_ISBLK(st->st_mode) ? S_IFBLK :
648 0U);
649 if (sdata == NULL)
650 sdata = "???";
651 #endif /* HAVE_DEVNAME */
652 if (hilo == HIGH_PIECE) {
653 data = major(data);
654 hilo = 0;
655 }
656 else if (hilo == LOW_PIECE) {
657 data = minor((unsigned)data);
658 hilo = 0;
659 }
660 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX |
661 #if HAVE_DEVNAME
662 FMTF_STRING;
663 #else /* HAVE_DEVNAME */
664 0;
665 #endif /* HAVE_DEVNAME */
666 if (ofmt == 0)
667 ofmt = FMTF_UNSIGNED;
668 break;
669 case SHOW_st_ino:
670 small = (sizeof(st->st_ino) == 4);
671 data = st->st_ino;
672 sdata = NULL;
673 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX;
674 if (ofmt == 0)
675 ofmt = FMTF_UNSIGNED;
676 break;
677 case SHOW_st_mode:
678 small = (sizeof(st->st_mode) == 4);
679 data = st->st_mode;
680 strmode(st->st_mode, smode);
681 stmp = smode;
682 l = strlen(stmp);
683 if (stmp[l - 1] == ' ')
684 stmp[--l] = '\0';
685 if (hilo == HIGH_PIECE) {
686 data >>= 12;
687 stmp += 1;
688 stmp[3] = '\0';
689 hilo = 0;
690 }
691 else if (hilo == MIDDLE_PIECE) {
692 data = (data >> 9) & 07;
693 stmp += 4;
694 stmp[3] = '\0';
695 hilo = 0;
696 }
697 else if (hilo == LOW_PIECE) {
698 data &= 0777;
699 stmp += 7;
700 stmp[3] = '\0';
701 hilo = 0;
702 }
703 sdata = stmp;
704 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX |
705 FMTF_STRING;
706 if (ofmt == 0)
707 ofmt = FMTF_OCTAL;
708 break;
709 case SHOW_st_nlink:
710 small = (sizeof(st->st_dev) == 4);
711 data = st->st_nlink;
712 sdata = NULL;
713 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX;
714 if (ofmt == 0)
715 ofmt = FMTF_UNSIGNED;
716 break;
717 case SHOW_st_uid:
718 small = (sizeof(st->st_uid) == 4);
719 data = st->st_uid;
720 sdata = user_from_uid(st->st_uid, 1);
721 if (sdata == NULL) {
722 snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_uid);
723 sdata = sid;
724 }
725 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX |
726 FMTF_STRING;
727 if (ofmt == 0)
728 ofmt = FMTF_UNSIGNED;
729 break;
730 case SHOW_st_gid:
731 small = (sizeof(st->st_gid) == 4);
732 data = st->st_gid;
733 sdata = group_from_gid(st->st_gid, 1);
734 if (sdata == NULL) {
735 snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_gid);
736 sdata = sid;
737 }
738 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX |
739 FMTF_STRING;
740 if (ofmt == 0)
741 ofmt = FMTF_UNSIGNED;
742 break;
743 case SHOW_st_atime:
744 tsp = &st->st_atimespec;
745 /* FALLTHROUGH */
746 case SHOW_st_mtime:
747 if (tsp == NULL)
748 tsp = &st->st_mtimespec;
749 /* FALLTHROUGH */
750 case SHOW_st_ctime:
751 if (tsp == NULL)
752 tsp = &st->st_ctimespec;
753 /* FALLTHROUGH */
754 #if HAVE_STRUCT_STAT_ST_BIRTHTIME
755 case SHOW_st_btime:
756 if (tsp == NULL)
757 tsp = &st->st_birthtimespec;
758 #endif /* HAVE_STRUCT_STAT_ST_BIRTHTIME */
759 ts = *tsp; /* copy so we can muck with it */
760 small = (sizeof(ts.tv_sec) == 4);
761 data = ts.tv_sec;
762 tm = localtime(&ts.tv_sec);
763 if (tm == NULL) {
764 ts.tv_sec = 0;
765 tm = localtime(&ts.tv_sec);
766 }
767 (void)setlocale(LC_TIME, "");
768 (void)strftime(path, sizeof(path), timefmt, tm);
769 sdata = path;
770 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX |
771 FMTF_FLOAT | FMTF_STRING;
772 if (ofmt == 0)
773 ofmt = FMTF_DECIMAL;
774 break;
775 case SHOW_st_size:
776 small = (sizeof(st->st_size) == 4);
777 data = st->st_size;
778 sdata = NULL;
779 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX;
780 if (ofmt == 0)
781 ofmt = FMTF_UNSIGNED;
782 break;
783 case SHOW_st_blocks:
784 small = (sizeof(st->st_blocks) == 4);
785 data = st->st_blocks;
786 sdata = NULL;
787 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX;
788 if (ofmt == 0)
789 ofmt = FMTF_UNSIGNED;
790 break;
791 case SHOW_st_blksize:
792 small = (sizeof(st->st_blksize) == 4);
793 data = st->st_blksize;
794 sdata = NULL;
795 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX;
796 if (ofmt == 0)
797 ofmt = FMTF_UNSIGNED;
798 break;
799 #if HAVE_STRUCT_STAT_ST_FLAGS
800 case SHOW_st_flags:
801 small = (sizeof(st->st_flags) == 4);
802 data = st->st_flags;
803 sdata = xfflagstostr(st->st_flags);
804 if (*sdata == '\0')
805 sdata = "-";
806 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX |
807 FMTF_STRING;
808 if (ofmt == 0)
809 ofmt = FMTF_UNSIGNED;
810 break;
811 #endif /* HAVE_STRUCT_STAT_ST_FLAGS */
812 #if HAVE_STRUCT_STAT_ST_GEN
813 case SHOW_st_gen:
814 small = (sizeof(st->st_gen) == 4);
815 data = st->st_gen;
816 sdata = NULL;
817 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX;
818 if (ofmt == 0)
819 ofmt = FMTF_UNSIGNED;
820 break;
821 #endif /* HAVE_STRUCT_STAT_ST_GEN */
822 case SHOW_realpath:
823 small = 0;
824 data = 0;
825 if (file == NULL) {
826 (void)strlcpy(path, "(stdin)", sizeof(path));
827 sdata = path;
828 } else {
829 snprintf(path, sizeof(path), " -> ");
830 if (realpath(file, path + 4) == NULL) {
831 linkfail = 1;
832 l = 0;
833 path[0] = '\0';
834 }
835 sdata = path + (ofmt == FMTF_STRING ? 0 : 4);
836 }
837
838 formats = FMTF_STRING;
839 if (ofmt == 0)
840 ofmt = FMTF_STRING;
841 break;
842 case SHOW_symlink:
843 small = 0;
844 data = 0;
845 if (S_ISLNK(st->st_mode)) {
846 snprintf(path, sizeof(path), " -> ");
847 l = readlink(file, path + 4, sizeof(path) - 4 - 1);
848 if (l == -1) {
849 linkfail = 1;
850 l = 0;
851 path[0] = '\0';
852 }
853 path[l + 4] = '\0';
854 sdata = path + (ofmt == FMTF_STRING ? 0 : 4);
855 }
856 else {
857 linkfail = 1;
858 sdata = "";
859 }
860 formats = FMTF_STRING;
861 if (ofmt == 0)
862 ofmt = FMTF_STRING;
863 break;
864 case SHOW_filetype:
865 small = 0;
866 data = 0;
867 sdata = "";
868 if (hilo == 0 || hilo == LOW_PIECE) {
869 switch (st->st_mode & S_IFMT) {
870 case S_IFIFO: sdata = "|"; break;
871 case S_IFDIR: sdata = "/"; break;
872 case S_IFREG:
873 if (st->st_mode &
874 (S_IXUSR | S_IXGRP | S_IXOTH))
875 sdata = "*";
876 break;
877 case S_IFLNK: sdata = "@"; break;
878 case S_IFSOCK: sdata = "="; break;
879 #ifdef S_IFWHT
880 case S_IFWHT: sdata = "%"; break;
881 #endif /* S_IFWHT */
882 #ifdef S_IFDOOR
883 case S_IFDOOR: sdata = ">"; break;
884 #endif /* S_IFDOOR */
885 }
886 hilo = 0;
887 }
888 else if (hilo == HIGH_PIECE) {
889 switch (st->st_mode & S_IFMT) {
890 case S_IFIFO: sdata = "Fifo File"; break;
891 case S_IFCHR: sdata = "Character Device"; break;
892 case S_IFDIR: sdata = "Directory"; break;
893 case S_IFBLK: sdata = "Block Device"; break;
894 case S_IFREG: sdata = "Regular File"; break;
895 case S_IFLNK: sdata = "Symbolic Link"; break;
896 case S_IFSOCK: sdata = "Socket"; break;
897 #ifdef S_IFWHT
898 case S_IFWHT: sdata = "Whiteout File"; break;
899 #endif /* S_IFWHT */
900 #ifdef S_IFDOOR
901 case S_IFDOOR: sdata = "Door"; break;
902 #endif /* S_IFDOOR */
903 default: sdata = "???"; break;
904 }
905 hilo = 0;
906 }
907 formats = FMTF_STRING;
908 if (ofmt == 0)
909 ofmt = FMTF_STRING;
910 break;
911 case SHOW_filename:
912 small = 0;
913 data = 0;
914 (void)strlcpy(path, file, sizeof(path));
915 sdata = path;
916 formats = FMTF_STRING;
917 if (ofmt == 0)
918 ofmt = FMTF_STRING;
919 break;
920 case SHOW_sizerdev:
921 if (S_ISCHR(st->st_mode) || S_ISBLK(st->st_mode)) {
922 char majdev[20], mindev[20];
923 int l1, l2;
924
925 l1 = format1(st,
926 file,
927 fmt, flen,
928 majdev, sizeof(majdev),
929 flags, size, prec,
930 ofmt, HIGH_PIECE, SHOW_st_rdev);
931 l2 = format1(st,
932 file,
933 fmt, flen,
934 mindev, sizeof(mindev),
935 flags, size, prec,
936 ofmt, LOW_PIECE, SHOW_st_rdev);
937 return (snprintf(buf, blen, "%.*s,%.*s",
938 l1, majdev, l2, mindev));
939 }
940 else {
941 return (format1(st,
942 file,
943 fmt, flen,
944 buf, blen,
945 flags, size, prec,
946 ofmt, 0, SHOW_st_size));
947 }
948 /*NOTREACHED*/
949 default:
950 errx(1, "%.*s: bad format", (int)flen, fmt);
951 }
952
953 /*
954 * If a subdatum was specified but not supported, or an output
955 * format was selected that is not supported, that's an error.
956 */
957 if (hilo != 0 || (ofmt & formats) == 0)
958 errx(1, "%.*s: bad format", (int)flen, fmt);
959
960 /*
961 * Assemble the format string for passing to printf(3).
962 */
963 lfmt[0] = '\0';
964 (void)strcat(lfmt, "%");
965 if (flags & FLAG_POUND)
966 (void)strcat(lfmt, "#");
967 if (flags & FLAG_SPACE)
968 (void)strcat(lfmt, " ");
969 if (flags & FLAG_PLUS)
970 (void)strcat(lfmt, "+");
971 if (flags & FLAG_MINUS)
972 (void)strcat(lfmt, "-");
973 if (flags & FLAG_ZERO)
974 (void)strcat(lfmt, "0");
975
976 /*
977 * Only the timespecs support the FLOAT output format, and that
978 * requires work that differs from the other formats.
979 */
980 if (ofmt == FMTF_FLOAT) {
981 /*
982 * Nothing after the decimal point, so just print seconds.
983 */
984 if (prec == 0) {
985 if (size != -1) {
986 (void)snprintf(tmp, sizeof(tmp), "%d", size);
987 (void)strcat(lfmt, tmp);
988 }
989 (void)strcat(lfmt, "lld");
990 return (snprintf(buf, blen, lfmt,
991 (long long)ts.tv_sec));
992 }
993
994 /*
995 * Unspecified precision gets all the precision we have:
996 * 9 digits.
997 */
998 if (prec == -1)
999 prec = 9;
1000
1001 /*
1002 * Adjust the size for the decimal point and the digits
1003 * that will follow.
1004 */
1005 size -= prec + 1;
1006
1007 /*
1008 * Any leftover size that's legitimate will be used.
1009 */
1010 if (size > 0) {
1011 (void)snprintf(tmp, sizeof(tmp), "%d", size);
1012 (void)strcat(lfmt, tmp);
1013 }
1014 /* Seconds: time_t cast to long long. */
1015 (void)strcat(lfmt, "lld");
1016
1017 /*
1018 * The stuff after the decimal point always needs zero
1019 * filling.
1020 */
1021 (void)strcat(lfmt, ".%0");
1022
1023 /*
1024 * We can "print" at most nine digits of precision. The
1025 * rest we will pad on at the end.
1026 *
1027 * Nanoseconds: long.
1028 */
1029 (void)snprintf(tmp, sizeof(tmp), "%dld", MIN(prec, 9));
1030 (void)strcat(lfmt, tmp);
1031
1032 /*
1033 * For precision of less that nine digits, trim off the
1034 * less significant figures.
1035 */
1036 for (; prec < 9; prec++)
1037 ts.tv_nsec /= 10;
1038
1039 /*
1040 * Use the format, and then tack on any zeroes that
1041 * might be required to make up the requested precision.
1042 */
1043 l = snprintf(buf, blen, lfmt, (long long)ts.tv_sec, ts.tv_nsec);
1044 for (; prec > 9 && l < (int)blen; prec--, l++)
1045 (void)strcat(buf, "0");
1046 return (l);
1047 }
1048
1049 /*
1050 * Add on size and precision, if specified, to the format.
1051 */
1052 if (size != -1) {
1053 (void)snprintf(tmp, sizeof(tmp), "%d", size);
1054 (void)strcat(lfmt, tmp);
1055 }
1056 if (prec != -1) {
1057 (void)snprintf(tmp, sizeof(tmp), ".%d", prec);
1058 (void)strcat(lfmt, tmp);
1059 }
1060
1061 /*
1062 * String output uses the temporary sdata.
1063 */
1064 if (ofmt == FMTF_STRING) {
1065 if (sdata == NULL)
1066 errx(1, "%.*s: bad format", (int)flen, fmt);
1067 (void)strcat(lfmt, "s");
1068 return (snprintf(buf, blen, lfmt, sdata));
1069 }
1070
1071 /*
1072 * Ensure that sign extension does not cause bad looking output
1073 * for some forms.
1074 */
1075 if (small && ofmt != FMTF_DECIMAL)
1076 data = (u_int32_t)data;
1077
1078 /*
1079 * The four "numeric" output forms.
1080 */
1081 (void)strcat(lfmt, "ll");
1082 switch (ofmt) {
1083 case FMTF_DECIMAL: (void)strcat(lfmt, "d"); break;
1084 case FMTF_OCTAL: (void)strcat(lfmt, "o"); break;
1085 case FMTF_UNSIGNED: (void)strcat(lfmt, "u"); break;
1086 case FMTF_HEX: (void)strcat(lfmt, "x"); break;
1087 }
1088
1089 return (snprintf(buf, blen, lfmt, data));
1090 }
1091
1092
1093 #define hex2nibble(c) (c <= '9' ? c - '0' : toupper(c) - 'A' + 10)
1094 int
hex2byte(const char c[2])1095 hex2byte(const char c[2]) {
1096 if (!(ishexnumber(c[0]) && ishexnumber(c[1])))
1097 return -1;
1098 return (hex2nibble(c[0]) << 4) + hex2nibble(c[1]);
1099 }
1100