1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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 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", 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 * 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 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 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 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 = devname(what == SHOW_st_dev ? st->st_dev : 644 st->st_rdev, S_ISCHR(st->st_mode) ? S_IFCHR : 645 (S_ISBLK(st->st_mode) ? S_IFBLK : 0)); 646 #endif /* HAVE_DEVNAME */ 647 if (hilo == HIGH_PIECE) { 648 data = major(data); 649 hilo = 0; 650 } 651 else if (hilo == LOW_PIECE) { 652 data = minor((unsigned)data); 653 hilo = 0; 654 } 655 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 656 #if HAVE_DEVNAME 657 FMTF_STRING; 658 #else /* HAVE_DEVNAME */ 659 0; 660 #endif /* HAVE_DEVNAME */ 661 if (ofmt == 0) 662 ofmt = FMTF_UNSIGNED; 663 break; 664 case SHOW_st_ino: 665 small = (sizeof(st->st_ino) == 4); 666 data = st->st_ino; 667 sdata = NULL; 668 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 669 if (ofmt == 0) 670 ofmt = FMTF_UNSIGNED; 671 break; 672 case SHOW_st_mode: 673 small = (sizeof(st->st_mode) == 4); 674 data = st->st_mode; 675 strmode(st->st_mode, smode); 676 stmp = smode; 677 l = strlen(stmp); 678 if (stmp[l - 1] == ' ') 679 stmp[--l] = '\0'; 680 if (hilo == HIGH_PIECE) { 681 data >>= 12; 682 stmp += 1; 683 stmp[3] = '\0'; 684 hilo = 0; 685 } 686 else if (hilo == MIDDLE_PIECE) { 687 data = (data >> 9) & 07; 688 stmp += 4; 689 stmp[3] = '\0'; 690 hilo = 0; 691 } 692 else if (hilo == LOW_PIECE) { 693 data &= 0777; 694 stmp += 7; 695 stmp[3] = '\0'; 696 hilo = 0; 697 } 698 sdata = stmp; 699 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 700 FMTF_STRING; 701 if (ofmt == 0) 702 ofmt = FMTF_OCTAL; 703 break; 704 case SHOW_st_nlink: 705 small = (sizeof(st->st_dev) == 4); 706 data = st->st_nlink; 707 sdata = NULL; 708 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 709 if (ofmt == 0) 710 ofmt = FMTF_UNSIGNED; 711 break; 712 case SHOW_st_uid: 713 small = (sizeof(st->st_uid) == 4); 714 data = st->st_uid; 715 sdata = user_from_uid(st->st_uid, 1); 716 if (sdata == NULL) { 717 snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_uid); 718 sdata = sid; 719 } 720 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 721 FMTF_STRING; 722 if (ofmt == 0) 723 ofmt = FMTF_UNSIGNED; 724 break; 725 case SHOW_st_gid: 726 small = (sizeof(st->st_gid) == 4); 727 data = st->st_gid; 728 sdata = group_from_gid(st->st_gid, 1); 729 if (sdata == NULL) { 730 snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_gid); 731 sdata = sid; 732 } 733 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 734 FMTF_STRING; 735 if (ofmt == 0) 736 ofmt = FMTF_UNSIGNED; 737 break; 738 case SHOW_st_atime: 739 tsp = &st->st_atimespec; 740 /* FALLTHROUGH */ 741 case SHOW_st_mtime: 742 if (tsp == NULL) 743 tsp = &st->st_mtimespec; 744 /* FALLTHROUGH */ 745 case SHOW_st_ctime: 746 if (tsp == NULL) 747 tsp = &st->st_ctimespec; 748 /* FALLTHROUGH */ 749 #if HAVE_STRUCT_STAT_ST_BIRTHTIME 750 case SHOW_st_btime: 751 if (tsp == NULL) 752 tsp = &st->st_birthtimespec; 753 #endif /* HAVE_STRUCT_STAT_ST_BIRTHTIME */ 754 ts = *tsp; /* copy so we can muck with it */ 755 small = (sizeof(ts.tv_sec) == 4); 756 data = ts.tv_sec; 757 tm = localtime(&ts.tv_sec); 758 if (tm == NULL) { 759 ts.tv_sec = 0; 760 tm = localtime(&ts.tv_sec); 761 } 762 (void)setlocale(LC_TIME, ""); 763 (void)strftime(path, sizeof(path), timefmt, tm); 764 sdata = path; 765 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 766 FMTF_FLOAT | FMTF_STRING; 767 if (ofmt == 0) 768 ofmt = FMTF_DECIMAL; 769 break; 770 case SHOW_st_size: 771 small = (sizeof(st->st_size) == 4); 772 data = st->st_size; 773 sdata = NULL; 774 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 775 if (ofmt == 0) 776 ofmt = FMTF_UNSIGNED; 777 break; 778 case SHOW_st_blocks: 779 small = (sizeof(st->st_blocks) == 4); 780 data = st->st_blocks; 781 sdata = NULL; 782 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 783 if (ofmt == 0) 784 ofmt = FMTF_UNSIGNED; 785 break; 786 case SHOW_st_blksize: 787 small = (sizeof(st->st_blksize) == 4); 788 data = st->st_blksize; 789 sdata = NULL; 790 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 791 if (ofmt == 0) 792 ofmt = FMTF_UNSIGNED; 793 break; 794 #if HAVE_STRUCT_STAT_ST_FLAGS 795 case SHOW_st_flags: 796 small = (sizeof(st->st_flags) == 4); 797 data = st->st_flags; 798 sdata = xfflagstostr(st->st_flags); 799 if (*sdata == '\0') 800 sdata = "-"; 801 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 802 FMTF_STRING; 803 if (ofmt == 0) 804 ofmt = FMTF_UNSIGNED; 805 break; 806 #endif /* HAVE_STRUCT_STAT_ST_FLAGS */ 807 #if HAVE_STRUCT_STAT_ST_GEN 808 case SHOW_st_gen: 809 small = (sizeof(st->st_gen) == 4); 810 data = st->st_gen; 811 sdata = NULL; 812 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 813 if (ofmt == 0) 814 ofmt = FMTF_UNSIGNED; 815 break; 816 #endif /* HAVE_STRUCT_STAT_ST_GEN */ 817 case SHOW_realpath: 818 small = 0; 819 data = 0; 820 if (file == NULL) { 821 (void)strlcpy(path, "(stdin)", sizeof(path)); 822 sdata = path; 823 } else { 824 snprintf(path, sizeof(path), " -> "); 825 if (realpath(file, path + 4) == NULL) { 826 linkfail = 1; 827 l = 0; 828 path[0] = '\0'; 829 } 830 sdata = path + (ofmt == FMTF_STRING ? 0 : 4); 831 } 832 833 formats = FMTF_STRING; 834 if (ofmt == 0) 835 ofmt = FMTF_STRING; 836 break; 837 case SHOW_symlink: 838 small = 0; 839 data = 0; 840 if (S_ISLNK(st->st_mode)) { 841 snprintf(path, sizeof(path), " -> "); 842 l = readlink(file, path + 4, sizeof(path) - 4 - 1); 843 if (l == -1) { 844 linkfail = 1; 845 l = 0; 846 path[0] = '\0'; 847 } 848 path[l + 4] = '\0'; 849 sdata = path + (ofmt == FMTF_STRING ? 0 : 4); 850 } 851 else { 852 linkfail = 1; 853 sdata = ""; 854 } 855 formats = FMTF_STRING; 856 if (ofmt == 0) 857 ofmt = FMTF_STRING; 858 break; 859 case SHOW_filetype: 860 small = 0; 861 data = 0; 862 sdata = ""; 863 if (hilo == 0 || hilo == LOW_PIECE) { 864 switch (st->st_mode & S_IFMT) { 865 case S_IFIFO: sdata = "|"; break; 866 case S_IFDIR: sdata = "/"; break; 867 case S_IFREG: 868 if (st->st_mode & 869 (S_IXUSR | S_IXGRP | S_IXOTH)) 870 sdata = "*"; 871 break; 872 case S_IFLNK: sdata = "@"; break; 873 case S_IFSOCK: sdata = "="; break; 874 #ifdef S_IFWHT 875 case S_IFWHT: sdata = "%"; break; 876 #endif /* S_IFWHT */ 877 #ifdef S_IFDOOR 878 case S_IFDOOR: sdata = ">"; break; 879 #endif /* S_IFDOOR */ 880 } 881 hilo = 0; 882 } 883 else if (hilo == HIGH_PIECE) { 884 switch (st->st_mode & S_IFMT) { 885 case S_IFIFO: sdata = "Fifo File"; break; 886 case S_IFCHR: sdata = "Character Device"; break; 887 case S_IFDIR: sdata = "Directory"; break; 888 case S_IFBLK: sdata = "Block Device"; break; 889 case S_IFREG: sdata = "Regular File"; break; 890 case S_IFLNK: sdata = "Symbolic Link"; break; 891 case S_IFSOCK: sdata = "Socket"; break; 892 #ifdef S_IFWHT 893 case S_IFWHT: sdata = "Whiteout File"; break; 894 #endif /* S_IFWHT */ 895 #ifdef S_IFDOOR 896 case S_IFDOOR: sdata = "Door"; break; 897 #endif /* S_IFDOOR */ 898 default: sdata = "???"; break; 899 } 900 hilo = 0; 901 } 902 formats = FMTF_STRING; 903 if (ofmt == 0) 904 ofmt = FMTF_STRING; 905 break; 906 case SHOW_filename: 907 small = 0; 908 data = 0; 909 (void)strlcpy(path, file, sizeof(path)); 910 sdata = path; 911 formats = FMTF_STRING; 912 if (ofmt == 0) 913 ofmt = FMTF_STRING; 914 break; 915 case SHOW_sizerdev: 916 if (S_ISCHR(st->st_mode) || S_ISBLK(st->st_mode)) { 917 char majdev[20], mindev[20]; 918 int l1, l2; 919 920 l1 = format1(st, 921 file, 922 fmt, flen, 923 majdev, sizeof(majdev), 924 flags, size, prec, 925 ofmt, HIGH_PIECE, SHOW_st_rdev); 926 l2 = format1(st, 927 file, 928 fmt, flen, 929 mindev, sizeof(mindev), 930 flags, size, prec, 931 ofmt, LOW_PIECE, SHOW_st_rdev); 932 return (snprintf(buf, blen, "%.*s,%.*s", 933 l1, majdev, l2, mindev)); 934 } 935 else { 936 return (format1(st, 937 file, 938 fmt, flen, 939 buf, blen, 940 flags, size, prec, 941 ofmt, 0, SHOW_st_size)); 942 } 943 /*NOTREACHED*/ 944 default: 945 errx(1, "%.*s: bad format", (int)flen, fmt); 946 } 947 948 /* 949 * If a subdatum was specified but not supported, or an output 950 * format was selected that is not supported, that's an error. 951 */ 952 if (hilo != 0 || (ofmt & formats) == 0) 953 errx(1, "%.*s: bad format", (int)flen, fmt); 954 955 /* 956 * Assemble the format string for passing to printf(3). 957 */ 958 lfmt[0] = '\0'; 959 (void)strcat(lfmt, "%"); 960 if (flags & FLAG_POUND) 961 (void)strcat(lfmt, "#"); 962 if (flags & FLAG_SPACE) 963 (void)strcat(lfmt, " "); 964 if (flags & FLAG_PLUS) 965 (void)strcat(lfmt, "+"); 966 if (flags & FLAG_MINUS) 967 (void)strcat(lfmt, "-"); 968 if (flags & FLAG_ZERO) 969 (void)strcat(lfmt, "0"); 970 971 /* 972 * Only the timespecs support the FLOAT output format, and that 973 * requires work that differs from the other formats. 974 */ 975 if (ofmt == FMTF_FLOAT) { 976 /* 977 * Nothing after the decimal point, so just print seconds. 978 */ 979 if (prec == 0) { 980 if (size != -1) { 981 (void)snprintf(tmp, sizeof(tmp), "%d", size); 982 (void)strcat(lfmt, tmp); 983 } 984 (void)strcat(lfmt, "lld"); 985 return (snprintf(buf, blen, lfmt, 986 (long long)ts.tv_sec)); 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)strcat(lfmt, tmp); 1008 } 1009 /* Seconds: time_t cast to long long. */ 1010 (void)strcat(lfmt, "lld"); 1011 1012 /* 1013 * The stuff after the decimal point always needs zero 1014 * filling. 1015 */ 1016 (void)strcat(lfmt, ".%0"); 1017 1018 /* 1019 * We can "print" at most nine digits of precision. The 1020 * rest we will pad on at the end. 1021 * 1022 * Nanoseconds: long. 1023 */ 1024 (void)snprintf(tmp, sizeof(tmp), "%dld", MIN(prec, 9)); 1025 (void)strcat(lfmt, tmp); 1026 1027 /* 1028 * For precision of less that nine digits, trim off the 1029 * less significant figures. 1030 */ 1031 for (; prec < 9; prec++) 1032 ts.tv_nsec /= 10; 1033 1034 /* 1035 * Use the format, and then tack on any zeroes that 1036 * might be required to make up the requested precision. 1037 */ 1038 l = snprintf(buf, blen, lfmt, (long long)ts.tv_sec, ts.tv_nsec); 1039 for (; prec > 9 && l < (int)blen; prec--, l++) 1040 (void)strcat(buf, "0"); 1041 return (l); 1042 } 1043 1044 /* 1045 * Add on size and precision, if specified, to the format. 1046 */ 1047 if (size != -1) { 1048 (void)snprintf(tmp, sizeof(tmp), "%d", size); 1049 (void)strcat(lfmt, tmp); 1050 } 1051 if (prec != -1) { 1052 (void)snprintf(tmp, sizeof(tmp), ".%d", prec); 1053 (void)strcat(lfmt, tmp); 1054 } 1055 1056 /* 1057 * String output uses the temporary sdata. 1058 */ 1059 if (ofmt == FMTF_STRING) { 1060 if (sdata == NULL) 1061 errx(1, "%.*s: bad format", (int)flen, fmt); 1062 (void)strcat(lfmt, "s"); 1063 return (snprintf(buf, blen, lfmt, sdata)); 1064 } 1065 1066 /* 1067 * Ensure that sign extension does not cause bad looking output 1068 * for some forms. 1069 */ 1070 if (small && ofmt != FMTF_DECIMAL) 1071 data = (u_int32_t)data; 1072 1073 /* 1074 * The four "numeric" output forms. 1075 */ 1076 (void)strcat(lfmt, "ll"); 1077 switch (ofmt) { 1078 case FMTF_DECIMAL: (void)strcat(lfmt, "d"); break; 1079 case FMTF_OCTAL: (void)strcat(lfmt, "o"); break; 1080 case FMTF_UNSIGNED: (void)strcat(lfmt, "u"); break; 1081 case FMTF_HEX: (void)strcat(lfmt, "x"); break; 1082 } 1083 1084 return (snprintf(buf, blen, lfmt, data)); 1085 } 1086 1087 1088 #define hex2nibble(c) (c <= '9' ? c - '0' : toupper(c) - 'A' + 10) 1089 int 1090 hex2byte(const char c[2]) { 1091 if (!(ishexnumber(c[0]) && ishexnumber(c[1]))) 1092 return -1; 1093 return (hex2nibble(c[0]) << 4) + hex2nibble(c[1]); 1094 } 1095