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