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