1 /* $NetBSD: stat.c,v 1.20 2004/12/31 03:24:31 atatat Exp $ */
2
3 /*
4 * Copyright © 2013
5 * Thorsten “mirabilos” Glaser <tg@mirbsd.org>
6 * Copyright (c) 2002 The NetBSD Foundation, Inc.
7 * All rights reserved.
8 *
9 * This code is derived from software contributed to The NetBSD Foundation
10 * by Andrew Brown.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. All advertising materials mentioning features or use of this software
21 * must display the following acknowledgement:
22 * This product includes software developed by the NetBSD
23 * Foundation, Inc. and its contributors.
24 * 4. Neither the name of The NetBSD Foundation nor the names of its
25 * contributors may be used to endorse or promote products derived
26 * from this software without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
38 * POSSIBILITY OF SUCH DAMAGE.
39 */
40
41 #if defined(HAVE_NBTOOL_CONFIG_H) && HAVE_NBTOOL_CONFIG_H
42 #include "nbtool_config.h"
43 #endif
44
45 #include <sys/cdefs.h>
46 __RCSID("$MirOS: src/usr.bin/stat/stat.c,v 1.6 2013/10/31 20:07:16 tg Exp $");
47 __RCSID("$NetBSD: stat.c,v 1.20 2004/12/31 03:24:31 atatat Exp $");
48
49 #if !defined(HAVE_NBTOOL_CONFIG_H) || (!HAVE_NBTOOL_CONFIG_H)
50 #define HAVE_STRUCT_STAT_ST_FLAGS 1
51 #define HAVE_STRUCT_STAT_ST_GEN 1
52 #if defined(__OpenBSD__) && !defined(_POSIX_SOURCE) && !defined(st_birthtime)
53 #define HAVE_STRUCT_STAT_ST_BIRTHTIME 0
54 #else
55 #define HAVE_STRUCT_STAT_ST_BIRTHTIME 1
56 #endif
57 #define HAVE_STRUCT_STAT_ST_MTIMENSEC 1
58 #define HAVE_DEVNAME 1
59 #endif /* HAVE_NBTOOL_CONFIG_H */
60
61 #include <sys/types.h>
62 #include <sys/stat.h>
63
64 #include <ctype.h>
65 #include <err.h>
66 #include <errno.h>
67 #include <grp.h>
68 #include <limits.h>
69 #include <pwd.h>
70 #include <stdio.h>
71 #include <stdlib.h>
72 #include <string.h>
73 #include <time.h>
74 #include <unistd.h>
75
76 #if HAVE_STRUCT_STAT_ST_FLAGS
77 #define DEF_F "%#Xf "
78 #define RAW_F "%f "
79 #define SHELL_F " st_flags=%f"
80 #else /* HAVE_STRUCT_STAT_ST_FLAGS */
81 #define DEF_F
82 #define RAW_F
83 #define SHELL_F
84 #endif /* HAVE_STRUCT_STAT_ST_FLAGS */
85
86 #if HAVE_STRUCT_STAT_ST_BIRTHTIME
87 #define DEF_B "\"%SB\" "
88 #define RAW_B "%B "
89 #define SHELL_B "st_birthtime=%B "
90 #else /* HAVE_STRUCT_STAT_ST_BIRTHTIME */
91 #define DEF_B
92 #define RAW_B
93 #define SHELL_B
94 #endif /* HAVE_STRUCT_STAT_ST_BIRTHTIME */
95
96 #if defined(HAVE_STRUCT_STAT_ST_ATIM) && HAVE_STRUCT_STAT_ST_ATIM
97 #define st_atimespec st_atim
98 #define st_ctimespec st_ctim
99 #define st_mtimespec st_mtim
100 #endif /* HAVE_STRUCT_STAT_ST_ATIM */
101
102 #define DEF_FORMAT \
103 "%d %i %Sp %l %Su %Sg %r %z \"%Sa\" \"%Sm\" \"%Sc\" " DEF_B \
104 "%k %b " DEF_F "%N"
105 #define RAW_FORMAT "%d %i %#p %l %u %g %r %z %a %m %c " RAW_B \
106 "%k %b " RAW_F "%N"
107 #define LS_FORMAT "%Sp %l %Su %Sg %Z %Sm %N%SY"
108 #define LSF_FORMAT "%Sp %l %Su %Sg %Z %Sm %N%T%SY"
109 #define SHELL_FORMAT \
110 "st_dev=%d st_ino=%i st_mode=%#p st_nlink=%l " \
111 "st_uid=%u st_gid=%g st_rdev=%r st_size=%z " \
112 "st_atime=%a st_mtime=%m st_ctime=%c " SHELL_B \
113 "st_blksize=%k st_blocks=%b" SHELL_F
114 #define LINUX_FORMAT \
115 " File: \"%N\"%n" \
116 " Size: %-11z FileType: %HT%n" \
117 " Mode: (%04OLp/%.10Sp) Uid: (%5u/%8Su) Gid: (%5g/%8Sg)%n" \
118 "Device: %Hd,%Ld Inode: %i Links: %l%n" \
119 "Access: %Sa.%09La%n" \
120 "Modify: %Sm.%09Lm%n" \
121 "Change: %Sc.%09Lc"
122
123 #define TIME_FORMAT "%b %e %T %Y"
124
125 #define FLAG_POUND 0x01
126 #define FLAG_SPACE 0x02
127 #define FLAG_PLUS 0x04
128 #define FLAG_ZERO 0x08
129 #define FLAG_MINUS 0x10
130
131 /*
132 * These format characters must all be unique, except the magic one.
133 */
134 #define FMT_MAGIC '%'
135 #define FMT_DOT '.'
136
137 #define SIMPLE_NEWLINE 'n'
138 #define SIMPLE_TAB 't'
139 #define SIMPLE_PERCENT '%'
140 #define SIMPLE_NUMBER '@'
141
142 #define FMT_POUND '#'
143 #define FMT_SPACE ' '
144 #define FMT_PLUS '+'
145 #define FMT_ZERO '0'
146 #define FMT_MINUS '-'
147
148 #define FMT_DECIMAL 'D'
149 #define FMT_OCTAL 'O'
150 #define FMT_UNSIGNED 'U'
151 #define FMT_HEX 'X'
152 #define FMT_FLOAT 'F'
153 #define FMT_STRING 'S'
154
155 #define FMTF_DECIMAL 0x01
156 #define FMTF_OCTAL 0x02
157 #define FMTF_UNSIGNED 0x04
158 #define FMTF_HEX 0x08
159 #define FMTF_FLOAT 0x10
160 #define FMTF_STRING 0x20
161
162 #define HIGH_PIECE 'H'
163 #define MIDDLE_PIECE 'M'
164 #define LOW_PIECE 'L'
165
166 #define SHOW_st_dev 'd'
167 #define SHOW_st_ino 'i'
168 #define SHOW_st_mode 'p'
169 #define SHOW_st_nlink 'l'
170 #define SHOW_st_uid 'u'
171 #define SHOW_st_gid 'g'
172 #define SHOW_st_rdev 'r'
173 #define SHOW_st_atime 'a'
174 #define SHOW_st_mtime 'm'
175 #define SHOW_st_ctime 'c'
176 #define SHOW_st_btime 'B'
177 #define SHOW_st_size 'z'
178 #define SHOW_st_blocks 'b'
179 #define SHOW_st_blksize 'k'
180 #define SHOW_st_flags 'f'
181 #define SHOW_st_gen 'v'
182 #define SHOW_symlink 'Y'
183 #define SHOW_filetype 'T'
184 #define SHOW_filename 'N'
185 #define SHOW_sizerdev 'Z'
186
187 __dead void usage(const char *);
188 void output(const struct stat *, const char *,
189 const char *, int, int, int);
190 int format1(const struct stat *, /* stat info */
191 const char *, /* the file name */
192 const char *, int, /* the format string itself */
193 char *, size_t, /* a place to put the output */
194 int, int, int, int, /* the parsed format */
195 int, int);
196
197 const char *timefmt;
198 int linkfail;
199
200 #define addchar(s, c, nl) \
201 do { \
202 (void)fputc((c), (s)); \
203 (*nl) = ((c) == '\n'); \
204 } while (0/*CONSTCOND*/)
205
206 int
main(int argc,char * argv[])207 main(int argc, char *argv[])
208 {
209 struct stat st;
210 int ch, rc, errs, am_readlink;
211 int lsF, fmtchar, usestat, fn, nonl, quiet;
212 const char *statfmt, *options, *synopsis;
213
214 am_readlink = 0;
215 lsF = 0;
216 fmtchar = '\0';
217 usestat = 0;
218 nonl = 0;
219 quiet = 0;
220 linkfail = 0;
221 statfmt = NULL;
222 timefmt = NULL;
223
224 #ifdef __NetBSD__
225 if (strcmp(getprogname(), "readlink") == 0) {
226 am_readlink = 1;
227 options = "n";
228 synopsis = "[-n] [file ...]";
229 statfmt = "%Y";
230 fmtchar = 'f';
231 quiet = 1;
232 } else {
233 #else
234 {
235 #endif
236 options = "f:FlLnqrst:x";
237 synopsis = "[-FlLnqrsx] [-f format] [-t timefmt] [file ...]";
238 }
239
240 while ((ch = getopt(argc, argv, options)) != -1)
241 switch (ch) {
242 case 'F':
243 lsF = 1;
244 break;
245 case 'L':
246 usestat = 1;
247 break;
248 case 'n':
249 nonl = 1;
250 break;
251 case 'q':
252 quiet = 1;
253 break;
254 case 'f':
255 statfmt = optarg;
256 /* FALLTHROUGH */
257 case 'l':
258 case 'r':
259 case 's':
260 case 'x':
261 if (fmtchar != 0)
262 errx(1, "can't use format '%c' with '%c'",
263 fmtchar, ch);
264 fmtchar = ch;
265 break;
266 case 't':
267 timefmt = optarg;
268 break;
269 default:
270 usage(synopsis);
271 }
272
273 argc -= optind;
274 argv += optind;
275 fn = 1;
276
277 if (fmtchar == '\0') {
278 if (lsF)
279 fmtchar = 'l';
280 else {
281 fmtchar = 'f';
282 statfmt = DEF_FORMAT;
283 }
284 }
285
286 if (lsF && fmtchar != 'l')
287 errx(1, "can't use format '%c' with -F", fmtchar);
288
289 switch (fmtchar) {
290 case 'f':
291 /* statfmt already set */
292 break;
293 case 'l':
294 statfmt = lsF ? LSF_FORMAT : LS_FORMAT;
295 break;
296 case 'r':
297 statfmt = RAW_FORMAT;
298 break;
299 case 's':
300 statfmt = SHELL_FORMAT;
301 break;
302 case 'x':
303 statfmt = LINUX_FORMAT;
304 if (timefmt == NULL)
305 timefmt = "%F %T";
306 break;
307 default:
308 usage(synopsis);
309 /*NOTREACHED*/
310 }
311
312 if (timefmt == NULL)
313 timefmt = TIME_FORMAT;
314
315 errs = 0;
316 do {
317 if (argc == 0)
318 rc = fstat(STDIN_FILENO, &st);
319 else if (usestat) {
320 /*
321 * Try stat() and if it fails, fall back to
322 * lstat() just in case we're examining a
323 * broken symlink.
324 */
325 if ((rc = stat(argv[0], &st)) == -1 &&
326 errno == ENOENT &&
327 (rc = lstat(argv[0], &st)) == -1)
328 errno = ENOENT;
329 }
330 else
331 rc = lstat(argv[0], &st);
332
333 if (rc == -1) {
334 errs = 1;
335 linkfail = 1;
336 if (!quiet)
337 warn("%s: %s",
338 argc == 0 ? "(stdin)" : argv[0],
339 usestat ? "stat" : "lstat");
340 }
341 else
342 output(&st, argv[0], statfmt, fn, nonl, quiet);
343
344 argv++;
345 argc--;
346 fn++;
347 } while (argc > 0);
348
349 return (am_readlink ? linkfail : errs);
350 }
351
352 __dead void
353 usage(const char *synopsis)
354 {
355 #ifndef __NetBSD__
356 extern char *__progname;
357 #endif
358
359 (void)fprintf(stderr, "usage: %s %s\n",
360 #ifdef __NetBSD__
361 getprogname(),
362 #else
363 __progname,
364 #endif
365 synopsis);
366 exit(1);
367 }
368
369 /*
370 * Parses a format string.
371 */
372 void
373 output(const struct stat *st, const char *file,
374 const char *statfmt, int fn, int nonl, int quiet __attribute__((__unused__)))
375 {
376 int flags, size, prec, ofmt, hilo, what;
377 char buf[PATH_MAX];
378 const char *subfmt;
379 int nl, t, i;
380
381 nl = 1;
382 while (*statfmt != '\0') {
383
384 /*
385 * Non-format characters go straight out.
386 */
387 if (*statfmt != FMT_MAGIC) {
388 addchar(stdout, *statfmt, &nl);
389 statfmt++;
390 continue;
391 }
392
393 /*
394 * The current format "substring" starts here,
395 * and then we skip the magic.
396 */
397 subfmt = statfmt;
398 statfmt++;
399
400 /*
401 * Some simple one-character "formats".
402 */
403 switch (*statfmt) {
404 case SIMPLE_NEWLINE:
405 addchar(stdout, '\n', &nl);
406 statfmt++;
407 continue;
408 case SIMPLE_TAB:
409 addchar(stdout, '\t', &nl);
410 statfmt++;
411 continue;
412 case SIMPLE_PERCENT:
413 addchar(stdout, '%', &nl);
414 statfmt++;
415 continue;
416 case SIMPLE_NUMBER: {
417 char num[12], *p;
418
419 snprintf(num, sizeof(num), "%d", fn);
420 for (p = &num[0]; *p; p++)
421 addchar(stdout, *p, &nl);
422 statfmt++;
423 continue;
424 }
425 }
426
427 /*
428 * This must be an actual format string. Format strings are
429 * similar to printf(3) formats up to a point, and are of
430 * the form:
431 *
432 * % required start of format
433 * [-# +0] opt. format characters
434 * size opt. field width
435 * . opt. decimal separator, followed by
436 * prec opt. precision
437 * fmt opt. output specifier (string, numeric, etc.)
438 * sub opt. sub field specifier (high, middle, low)
439 * datum required field specifier (size, mode, etc)
440 *
441 * Only the % and the datum selector are required. All data
442 * have reasonable default output forms. The "sub" specifier
443 * only applies to certain data (mode, dev, rdev, filetype).
444 * The symlink output defaults to STRING, yet will only emit
445 * the leading " -> " if STRING is explicitly specified. The
446 * sizerdev datum will generate rdev output for character or
447 * block devices, and size output for all others.
448 */
449 flags = 0;
450 do {
451 if (*statfmt == FMT_POUND)
452 flags |= FLAG_POUND;
453 else if (*statfmt == FMT_SPACE)
454 flags |= FLAG_SPACE;
455 else if (*statfmt == FMT_PLUS)
456 flags |= FLAG_PLUS;
457 else if (*statfmt == FMT_ZERO)
458 flags |= FLAG_ZERO;
459 else if (*statfmt == FMT_MINUS)
460 flags |= FLAG_MINUS;
461 else
462 break;
463 statfmt++;
464 } while (1/*CONSTCOND*/);
465
466 size = -1;
467 if (isdigit((unsigned)*statfmt)) {
468 size = 0;
469 while (isdigit((unsigned)*statfmt)) {
470 size = (size * 10) + (*statfmt - '0');
471 statfmt++;
472 if (size < 0)
473 goto badfmt;
474 }
475 }
476
477 prec = -1;
478 if (*statfmt == FMT_DOT) {
479 statfmt++;
480
481 prec = 0;
482 while (isdigit((unsigned)*statfmt)) {
483 prec = (prec * 10) + (*statfmt - '0');
484 statfmt++;
485 if (prec < 0)
486 goto badfmt;
487 }
488 }
489
490 #define fmtcase(x, y) case (y): (x) = (y); statfmt++; break
491 #define fmtcasef(x, y, z) case (y): (x) = (z); statfmt++; break
492 switch (*statfmt) {
493 fmtcasef(ofmt, FMT_DECIMAL, FMTF_DECIMAL);
494 fmtcasef(ofmt, FMT_OCTAL, FMTF_OCTAL);
495 fmtcasef(ofmt, FMT_UNSIGNED, FMTF_UNSIGNED);
496 fmtcasef(ofmt, FMT_HEX, FMTF_HEX);
497 fmtcasef(ofmt, FMT_FLOAT, FMTF_FLOAT);
498 fmtcasef(ofmt, FMT_STRING, FMTF_STRING);
499 default:
500 ofmt = 0;
501 break;
502 }
503
504 switch (*statfmt) {
505 fmtcase(hilo, HIGH_PIECE);
506 fmtcase(hilo, MIDDLE_PIECE);
507 fmtcase(hilo, LOW_PIECE);
508 default:
509 hilo = 0;
510 break;
511 }
512
513 switch (*statfmt) {
514 fmtcase(what, SHOW_st_dev);
515 fmtcase(what, SHOW_st_ino);
516 fmtcase(what, SHOW_st_mode);
517 fmtcase(what, SHOW_st_nlink);
518 fmtcase(what, SHOW_st_uid);
519 fmtcase(what, SHOW_st_gid);
520 fmtcase(what, SHOW_st_rdev);
521 fmtcase(what, SHOW_st_atime);
522 fmtcase(what, SHOW_st_mtime);
523 fmtcase(what, SHOW_st_ctime);
524 fmtcase(what, SHOW_st_btime);
525 fmtcase(what, SHOW_st_size);
526 fmtcase(what, SHOW_st_blocks);
527 fmtcase(what, SHOW_st_blksize);
528 fmtcase(what, SHOW_st_flags);
529 fmtcase(what, SHOW_st_gen);
530 fmtcase(what, SHOW_symlink);
531 fmtcase(what, SHOW_filetype);
532 fmtcase(what, SHOW_filename);
533 fmtcase(what, SHOW_sizerdev);
534 default:
535 goto badfmt;
536 }
537 #undef fmtcasef
538 #undef fmtcase
539
540 t = format1(st,
541 file,
542 subfmt, statfmt - subfmt,
543 buf, sizeof(buf),
544 flags, size, prec, ofmt, hilo, what);
545
546 for (i = 0; i < t && (size_t)i < sizeof(buf); i++)
547 addchar(stdout, buf[i], &nl);
548
549 continue;
550
551 badfmt:
552 errx(1, "%.*s: bad format",
553 (int)(statfmt - subfmt + 1), subfmt);
554 }
555
556 if (!nl && !nonl)
557 (void)fputc('\n', stdout);
558 (void)fflush(stdout);
559 }
560
561 /*
562 * Arranges output according to a single parsed format substring.
563 */
564 int
565 format1(const struct stat *st,
566 const char *file,
567 const char *fmt, int flen,
568 char *buf, size_t blen,
569 int flags, int size, int prec, int ofmt,
570 int hilo, int what)
571 {
572 u_int64_t data;
573 char *sdata, lfmt[24], tmp[20], sdatac[20];
574 char smode[12], sid[12], path[PATH_MAX + 4];
575 struct passwd *pw;
576 struct group *gr;
577 struct tm *tm;
578 time_t secs;
579 long nsecs;
580 int l, small, formats, gottime;
581
582 formats = 0;
583 small = 0;
584 gottime = 0;
585 secs = 0;
586 nsecs = 0;
587
588 /*
589 * First, pick out the data and tweak it based on hilo or
590 * specified output format (symlink output only).
591 */
592 switch (what) {
593 case SHOW_st_dev:
594 case SHOW_st_rdev:
595 small = (sizeof(st->st_dev) == 4);
596 data = (what == SHOW_st_dev) ? st->st_dev : st->st_rdev;
597 #if HAVE_DEVNAME
598 sdata = (what == SHOW_st_dev) ?
599 devname(st->st_dev, S_IFBLK) :
600 devname(st->st_rdev,
601 S_ISCHR(st->st_mode) ? S_IFCHR :
602 S_ISBLK(st->st_mode) ? S_IFBLK :
603 0U);
604 if (sdata == NULL)
605 strlcpy(sdata = sdatac, "???", sizeof (sdatac));
606 #endif /* HAVE_DEVNAME */
607 if (hilo == HIGH_PIECE) {
608 data = major(data);
609 hilo = 0;
610 }
611 else if (hilo == LOW_PIECE) {
612 data = minor((unsigned)data);
613 hilo = 0;
614 }
615 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX |
616 #if HAVE_DEVNAME
617 FMTF_STRING;
618 #else /* HAVE_DEVNAME */
619 0;
620 #endif /* HAVE_DEVNAME */
621 if (ofmt == 0)
622 ofmt = FMTF_UNSIGNED;
623 break;
624 case SHOW_st_ino:
625 small = (sizeof(st->st_ino) == 4);
626 data = st->st_ino;
627 sdata = NULL;
628 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX;
629 if (ofmt == 0)
630 ofmt = FMTF_UNSIGNED;
631 break;
632 case SHOW_st_mode:
633 small = (sizeof(st->st_mode) == 4);
634 data = st->st_mode;
635 strmode(st->st_mode, smode);
636 sdata = smode;
637 l = strlen(sdata);
638 if (sdata[l - 1] == ' ')
639 sdata[--l] = '\0';
640 if (hilo == HIGH_PIECE) {
641 data >>= 12;
642 sdata += 1;
643 sdata[3] = '\0';
644 hilo = 0;
645 }
646 else if (hilo == MIDDLE_PIECE) {
647 data = (data >> 9) & 07;
648 sdata += 4;
649 sdata[3] = '\0';
650 hilo = 0;
651 }
652 else if (hilo == LOW_PIECE) {
653 data &= 0777;
654 sdata += 7;
655 sdata[3] = '\0';
656 hilo = 0;
657 }
658 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX |
659 FMTF_STRING;
660 if (ofmt == 0)
661 ofmt = FMTF_OCTAL;
662 break;
663 case SHOW_st_nlink:
664 small = (sizeof(st->st_dev) == 4);
665 data = st->st_nlink;
666 sdata = NULL;
667 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX;
668 if (ofmt == 0)
669 ofmt = FMTF_UNSIGNED;
670 break;
671 case SHOW_st_uid:
672 small = (sizeof(st->st_uid) == 4);
673 data = st->st_uid;
674 if ((pw = getpwuid(st->st_uid)) != NULL)
675 sdata = pw->pw_name;
676 else {
677 snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_uid);
678 sdata = sid;
679 }
680 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX |
681 FMTF_STRING;
682 if (ofmt == 0)
683 ofmt = FMTF_UNSIGNED;
684 break;
685 case SHOW_st_gid:
686 small = (sizeof(st->st_gid) == 4);
687 data = st->st_gid;
688 if ((gr = getgrgid(st->st_gid)) != NULL)
689 sdata = gr->gr_name;
690 else {
691 snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_gid);
692 sdata = sid;
693 }
694 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX |
695 FMTF_STRING;
696 if (ofmt == 0)
697 ofmt = FMTF_UNSIGNED;
698 break;
699 case SHOW_st_atime:
700 gottime = 1;
701 secs = st->st_atime;
702 #if HAVE_STRUCT_STAT_ST_MTIMENSEC
703 nsecs = st->st_atimensec;
704 #endif
705 /* FALLTHROUGH */
706 case SHOW_st_mtime:
707 if (!gottime) {
708 gottime = 1;
709 secs = st->st_mtime;
710 #if HAVE_STRUCT_STAT_ST_MTIMENSEC
711 nsecs = st->st_mtimensec;
712 #endif
713 }
714 /* FALLTHROUGH */
715 case SHOW_st_ctime:
716 if (!gottime) {
717 gottime = 1;
718 secs = st->st_ctime;
719 #if HAVE_STRUCT_STAT_ST_MTIMENSEC
720 nsecs = st->st_ctimensec;
721 #endif
722 }
723 /* FALLTHROUGH */
724 #if HAVE_STRUCT_STAT_ST_BIRTHTIME
725 case SHOW_st_btime:
726 if (!gottime) {
727 gottime = 1;
728 secs = st->st_birthtime;
729 nsecs = st->st_birthtimensec;
730 }
731 #endif /* HAVE_STRUCT_STAT_ST_BIRTHTIME */
732 small = (sizeof(secs) == 4);
733 data = secs;
734 tm = localtime(&secs);
735 (void)strftime(path, sizeof(path), timefmt, tm);
736 sdata = path;
737 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX |
738 FMTF_FLOAT | FMTF_STRING;
739 if (hilo == LOW_PIECE) {
740 data = nsecs;
741 small = (sizeof(nsecs) == 4);
742 hilo = 0;
743 }
744 if (ofmt == 0)
745 ofmt = FMTF_DECIMAL;
746 break;
747 case SHOW_st_size:
748 small = (sizeof(st->st_size) == 4);
749 data = st->st_size;
750 sdata = NULL;
751 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX;
752 if (ofmt == 0)
753 ofmt = FMTF_UNSIGNED;
754 break;
755 case SHOW_st_blocks:
756 small = (sizeof(st->st_blocks) == 4);
757 data = st->st_blocks;
758 sdata = NULL;
759 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX;
760 if (ofmt == 0)
761 ofmt = FMTF_UNSIGNED;
762 break;
763 case SHOW_st_blksize:
764 small = (sizeof(st->st_blksize) == 4);
765 data = st->st_blksize;
766 sdata = NULL;
767 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX;
768 if (ofmt == 0)
769 ofmt = FMTF_UNSIGNED;
770 break;
771 #if HAVE_STRUCT_STAT_ST_FLAGS
772 case SHOW_st_flags:
773 small = (sizeof(st->st_flags) == 4);
774 data = st->st_flags;
775 sdata = NULL;
776 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX;
777 if (ofmt == 0)
778 ofmt = FMTF_UNSIGNED;
779 break;
780 #endif /* HAVE_STRUCT_STAT_ST_FLAGS */
781 #if HAVE_STRUCT_STAT_ST_GEN
782 case SHOW_st_gen:
783 small = (sizeof(st->st_gen) == 4);
784 data = st->st_gen;
785 sdata = NULL;
786 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX;
787 if (ofmt == 0)
788 ofmt = FMTF_UNSIGNED;
789 break;
790 #endif /* HAVE_STRUCT_STAT_ST_GEN */
791 case SHOW_symlink:
792 small = 0;
793 data = 0;
794 if (S_ISLNK(st->st_mode)) {
795 snprintf(path, sizeof(path), " -> ");
796 l = readlink(file, path + 4, sizeof(path) - 4 - 1);
797 if (l == -1) {
798 linkfail = 1;
799 l = 0;
800 path[0] = '\0';
801 }
802 path[l + 4] = '\0';
803 sdata = path + (ofmt == FMTF_STRING ? 0 : 4);
804 }
805 else {
806 linkfail = 1;
807 *(sdata = sdatac) = '\0';
808 }
809 formats = FMTF_STRING;
810 if (ofmt == 0)
811 ofmt = FMTF_STRING;
812 break;
813 case SHOW_filetype:
814 small = 0;
815 data = 0;
816 sdata = smode;
817 sdata[0] = '\0';
818 if (hilo == 0 || hilo == LOW_PIECE) {
819 switch (st->st_mode & S_IFMT) {
820 case S_IFIFO: (void)strlcat(sdata, "|",
821 sizeof(smode)); break;
822 case S_IFDIR: (void)strlcat(sdata, "/",
823 sizeof(smode)); break;
824 case S_IFREG:
825 if (st->st_mode &
826 (S_IXUSR | S_IXGRP | S_IXOTH))
827 (void)strlcat(sdata, "*",
828 sizeof(smode));
829 break;
830 case S_IFLNK: (void)strlcat(sdata, "@",
831 sizeof(smode)); break;
832 #ifdef S_IFSOCK
833 case S_IFSOCK: (void)strlcat(sdata, "=",
834 sizeof(smode)); break;
835 #endif
836 #ifdef S_IFWHT
837 case S_IFWHT: (void)strlcat(sdata, "%",
838 sizeof(smode)); break;
839 #endif /* S_IFWHT */
840 #ifdef S_IFDOOR
841 case S_IFDOOR: (void)strlcat(sdata, ">",
842 sizeof(smode)); break;
843 #endif /* S_IFDOOR */
844 }
845 hilo = 0;
846 }
847 else if (hilo == HIGH_PIECE) {
848 const char *sdatap;
849 switch (st->st_mode & S_IFMT) {
850 case S_IFIFO: sdatap = "Fifo File"; break;
851 case S_IFCHR: sdatap = "Character Device"; break;
852 case S_IFDIR: sdatap = "Directory"; break;
853 case S_IFBLK: sdatap = "Block Device"; break;
854 case S_IFREG: sdatap = "Regular File"; break;
855 case S_IFLNK: sdatap = "Symbolic Link"; break;
856 #ifdef S_IFSOCK
857 case S_IFSOCK: sdatap = "Socket"; break;
858 #endif
859 #ifdef S_IFWHT
860 case S_IFWHT: sdatap = "Whiteout File"; break;
861 #endif /* S_IFWHT */
862 #ifdef S_IFDOOR
863 case S_IFDOOR: sdatap = "Door"; break;
864 #endif /* S_IFDOOR */
865 default: sdatap = "???"; break;
866 }
867 hilo = 0;
868 strlcpy(sdata = sdatac, sdatap, sizeof (sdatac));
869 }
870 formats = FMTF_STRING;
871 if (ofmt == 0)
872 ofmt = FMTF_STRING;
873 break;
874 case SHOW_filename:
875 small = 0;
876 data = 0;
877 if (file == NULL) {
878 (void)strncpy(path, "(stdin)", sizeof(path));
879 if (hilo == HIGH_PIECE || hilo == LOW_PIECE)
880 hilo = 0;
881 }
882 else if (hilo == 0)
883 (void)strncpy(path, file, sizeof(path));
884 else {
885 char *s;
886 (void)strncpy(path, file, sizeof(path));
887 s = strrchr(path, '/');
888 if (s != NULL) {
889 /* trim off trailing /'s */
890 while (s != path &&
891 s[0] == '/' && s[1] == '\0')
892 *s-- = '\0';
893 s = strrchr(path, '/');
894 }
895 if (hilo == HIGH_PIECE) {
896 if (s == NULL)
897 (void)strncpy(path, ".", sizeof(path));
898 else {
899 while (s != path && s[0] == '/')
900 *s-- = '\0';
901 }
902 hilo = 0;
903 }
904 else if (hilo == LOW_PIECE) {
905 if (s != NULL && s[1] != '\0')
906 (void)strncpy(path, s + 1,
907 sizeof(path));
908 hilo = 0;
909 }
910 }
911 sdata = path;
912 formats = FMTF_STRING;
913 if (ofmt == 0)
914 ofmt = FMTF_STRING;
915 break;
916 case SHOW_sizerdev:
917 if (S_ISCHR(st->st_mode) || S_ISBLK(st->st_mode)) {
918 char majdev[20], mindev[20];
919 int l1, l2;
920
921 l1 = format1(st,
922 file,
923 fmt, flen,
924 majdev, sizeof(majdev),
925 flags, size, prec,
926 ofmt, HIGH_PIECE, SHOW_st_rdev);
927 l2 = format1(st,
928 file,
929 fmt, flen,
930 mindev, sizeof(mindev),
931 flags, size, prec,
932 ofmt, LOW_PIECE, SHOW_st_rdev);
933 return (snprintf(buf, blen, "%.*s,%.*s",
934 l1, majdev, l2, mindev));
935 }
936 else {
937 return (format1(st,
938 file,
939 fmt, flen,
940 buf, blen,
941 flags, size, prec,
942 ofmt, 0, SHOW_st_size));
943 }
944 /*NOTREACHED*/
945 default:
946 errx(1, "%.*s: bad format", (int)flen, fmt);
947 }
948
949 /*
950 * If a subdatum was specified but not supported, or an output
951 * format was selected that is not supported, that's an error.
952 */
953 if (hilo != 0 || (ofmt & formats) == 0)
954 errx(1, "%.*s: bad format", (int)flen, fmt);
955
956 /*
957 * Assemble the format string for passing to printf(3).
958 */
959 lfmt[0] = '\0';
960 (void)strlcat(lfmt, "%", sizeof(lfmt));
961 if (flags & FLAG_POUND)
962 (void)strlcat(lfmt, "#", sizeof(lfmt));
963 if (flags & FLAG_SPACE)
964 (void)strlcat(lfmt, " ", sizeof(lfmt));
965 if (flags & FLAG_PLUS)
966 (void)strlcat(lfmt, "+", sizeof(lfmt));
967 if (flags & FLAG_MINUS)
968 (void)strlcat(lfmt, "-", sizeof(lfmt));
969 if (flags & FLAG_ZERO)
970 (void)strlcat(lfmt, "0", sizeof(lfmt));
971
972 /*
973 * Only the timespecs support the FLOAT output format, and that
974 * requires work that differs from the other formats.
975 */
976 if (ofmt == FMTF_FLOAT) {
977 /*
978 * Nothing after the decimal point, so just print seconds.
979 */
980 if (prec == 0) {
981 if (size != -1) {
982 (void)snprintf(tmp, sizeof(tmp), "%d", size);
983 (void)strlcat(lfmt, tmp, sizeof(lfmt));
984 }
985 (void)strlcat(lfmt, "d", sizeof(lfmt));
986 return (snprintf(buf, blen, lfmt, secs));
987 }
988
989 /*
990 * Unspecified precision gets all the precision we have:
991 * 9 digits.
992 */
993 if (prec == -1)
994 prec = 9;
995
996 /*
997 * Adjust the size for the decimal point and the digits
998 * that will follow.
999 */
1000 size -= prec + 1;
1001
1002 /*
1003 * Any leftover size that's legitimate will be used.
1004 */
1005 if (size > 0) {
1006 (void)snprintf(tmp, sizeof(tmp), "%d", size);
1007 (void)strlcat(lfmt, tmp, sizeof(lfmt));
1008 }
1009 (void)strlcat(lfmt, "d", sizeof(lfmt));
1010
1011 /*
1012 * The stuff after the decimal point always needs zero
1013 * filling.
1014 */
1015 (void)strlcat(lfmt, ".%0", sizeof(lfmt));
1016
1017 /*
1018 * We can "print" at most nine digits of precision. The
1019 * rest we will pad on at the end.
1020 */
1021 (void)snprintf(tmp, sizeof(tmp), "%dd", prec > 9 ? 9 : prec);
1022 (void)strlcat(lfmt, tmp, sizeof(lfmt));
1023
1024 /*
1025 * For precision of less that nine digits, trim off the
1026 * less significant figures.
1027 */
1028 for (; prec < 9; prec++)
1029 nsecs /= 10;
1030
1031 /*
1032 * Use the format, and then tack on any zeroes that
1033 * might be required to make up the requested precision.
1034 */
1035 l = snprintf(buf, blen, lfmt, secs, nsecs);
1036 for (; prec > 9 && (size_t)l < blen; prec--, l++)
1037 (void)strlcat(buf, "0", blen);
1038 return (l);
1039 }
1040
1041 /*
1042 * Add on size and precision, if specified, to the format.
1043 */
1044 if (size != -1) {
1045 (void)snprintf(tmp, sizeof(tmp), "%d", size);
1046 (void)strlcat(lfmt, tmp, sizeof(lfmt));
1047 }
1048 if (prec != -1) {
1049 (void)snprintf(tmp, sizeof(tmp), ".%d", prec);
1050 (void)strlcat(lfmt, tmp, sizeof(lfmt));
1051 }
1052
1053 /*
1054 * String output uses the temporary sdata.
1055 */
1056 if (ofmt == FMTF_STRING) {
1057 if (sdata == NULL)
1058 errx(1, "%.*s: bad format", (int)flen, fmt);
1059 (void)strlcat(lfmt, "s", sizeof(lfmt));
1060 return (snprintf(buf, blen, lfmt, sdata));
1061 }
1062
1063 /*
1064 * Ensure that sign extension does not cause bad looking output
1065 * for some forms.
1066 */
1067 if (small && ofmt != FMTF_DECIMAL)
1068 data = (u_int32_t)data;
1069
1070 /*
1071 * The four "numeric" output forms.
1072 */
1073 (void)strlcat(lfmt, "ll", sizeof(lfmt));
1074 switch (ofmt) {
1075 case FMTF_DECIMAL: (void)strlcat(lfmt, "d", sizeof(lfmt)); break;
1076 case FMTF_OCTAL: (void)strlcat(lfmt, "o", sizeof(lfmt)); break;
1077 case FMTF_UNSIGNED: (void)strlcat(lfmt, "u", sizeof(lfmt)); break;
1078 case FMTF_HEX: (void)strlcat(lfmt, "x", sizeof(lfmt)); break;
1079 }
1080
1081 return (snprintf(buf, blen, lfmt, data));
1082 }
1083