1 /* 2 * Copyright (c) 2002 The NetBSD Foundation, Inc. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to The NetBSD Foundation 6 * by Andrew Brown. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 * POSSIBILITY OF SUCH DAMAGE. 28 * 29 * $NetBSD: stat.c,v 1.33 2011/01/15 22:54:10 njoly Exp $ 30 * $OpenBSD: stat.c,v 1.14 2009/06/24 09:44:25 sobrado Exp $ 31 * $FreeBSD: head/usr.bin/stat/stat.c 265893 2014-05-11 18:49:18Z thomas $ 32 */ 33 34 #include <sys/param.h> 35 #include <sys/types.h> 36 #include <sys/stat.h> 37 #include <sys/mount.h> 38 39 #include <ctype.h> 40 #include <err.h> 41 #include <errno.h> 42 #include <grp.h> 43 #include <limits.h> 44 #include <paths.h> 45 #include <pwd.h> 46 #include <stdio.h> 47 #include <stdlib.h> 48 #include <string.h> 49 #include <time.h> 50 #include <unistd.h> 51 52 #ifdef BOOTSTRAPPING 53 #define HAVE_DEVNAME 0 54 #define HAVE_STRUCT_STAT_ST_FLAGS 0 55 #define HAVE_STRUCT_STAT_ST_GEN 0 56 #define HAVE_STRUCT_STAT_ST_BIRTHTIME 0 57 #define HAVE_STRUCT_STAT_ST_ATIM 1 58 #else 59 #define HAVE_DEVNAME 1 60 #define HAVE_STRUCT_STAT_ST_FLAGS 1 61 #define HAVE_STRUCT_STAT_ST_GEN 1 62 #define HAVE_STRUCT_STAT_ST_BIRTHTIME 0 63 #define HAVE_STRUCT_STAT_ST_ATIM 1 64 #endif 65 66 #if HAVE_STRUCT_STAT_ST_FLAGS 67 #define DEF_F "%#Xf " 68 #define RAW_F "%f " 69 #define SHELL_F " st_flags=%f" 70 #else /* HAVE_STRUCT_STAT_ST_FLAGS */ 71 #define DEF_F 72 #define RAW_F 73 #define SHELL_F 74 #endif /* HAVE_STRUCT_STAT_ST_FLAGS */ 75 76 #if HAVE_STRUCT_STAT_ST_BIRTHTIME 77 #define DEF_B "\"%SB\" " 78 #define RAW_B "%B " 79 #define SHELL_B "st_birthtime=%B " 80 #else /* HAVE_STRUCT_STAT_ST_BIRTHTIME */ 81 #define DEF_B 82 #define RAW_B 83 #define SHELL_B 84 #endif /* HAVE_STRUCT_STAT_ST_BIRTHTIME */ 85 86 #if HAVE_STRUCT_STAT_ST_ATIM 87 #define st_atimespec st_atim 88 #define st_ctimespec st_ctim 89 #define st_mtimespec st_mtim 90 #endif /* HAVE_STRUCT_STAT_ST_ATIM */ 91 92 #define DEF_FORMAT \ 93 "%d %i %Sp %l %Su %Sg %r %z \"%Sa\" \"%Sm\" \"%Sc\" " DEF_B \ 94 "%k %b " DEF_F "%N" 95 #define RAW_FORMAT "%d %i %#p %l %u %g %r %z %a %m %c " RAW_B \ 96 "%k %b " RAW_F "%N" 97 #define LS_FORMAT "%Sp %l %Su %Sg %Z %Sm %N%SY" 98 #define LSF_FORMAT "%Sp %l %Su %Sg %Z %Sm %N%T%SY" 99 #define SHELL_FORMAT \ 100 "st_dev=%d st_ino=%i st_mode=%#p st_nlink=%l " \ 101 "st_uid=%u st_gid=%g st_rdev=%r st_size=%z " \ 102 "st_atime=%a st_mtime=%m st_ctime=%c " SHELL_B \ 103 "st_blksize=%k st_blocks=%b" SHELL_F 104 #define LINUX_FORMAT \ 105 " File: \"%N\"%n" \ 106 " Size: %-11z FileType: %HT%n" \ 107 " Mode: (%OMp%03OLp/%.10Sp) Uid: (%5u/%8Su) Gid: (%5g/%8Sg)%n" \ 108 "Device: %Hd,%Ld Inode: %i Links: %l%n" \ 109 "Access: %Sa%n" \ 110 "Modify: %Sm%n" \ 111 "Change: %Sc" 112 113 #define TIME_FORMAT "%b %e %T %Y" 114 115 #define FLAG_POUND 0x01 116 #define FLAG_SPACE 0x02 117 #define FLAG_PLUS 0x04 118 #define FLAG_ZERO 0x08 119 #define FLAG_MINUS 0x10 120 121 /* 122 * These format characters must all be unique, except the magic one. 123 */ 124 #define FMT_MAGIC '%' 125 #define FMT_DOT '.' 126 127 #define SIMPLE_NEWLINE 'n' 128 #define SIMPLE_TAB 't' 129 #define SIMPLE_PERCENT '%' 130 #define SIMPLE_NUMBER '@' 131 132 #define FMT_POUND '#' 133 #define FMT_SPACE ' ' 134 #define FMT_PLUS '+' 135 #define FMT_ZERO '0' 136 #define FMT_MINUS '-' 137 138 #define FMT_DECIMAL 'D' 139 #define FMT_OCTAL 'O' 140 #define FMT_UNSIGNED 'U' 141 #define FMT_HEX 'X' 142 #define FMT_FLOAT 'F' 143 #define FMT_STRING 'S' 144 145 #define FMTF_DECIMAL 0x01 146 #define FMTF_OCTAL 0x02 147 #define FMTF_UNSIGNED 0x04 148 #define FMTF_HEX 0x08 149 #define FMTF_FLOAT 0x10 150 #define FMTF_STRING 0x20 151 152 #define HIGH_PIECE 'H' 153 #define MIDDLE_PIECE 'M' 154 #define LOW_PIECE 'L' 155 156 #define SHOW_realpath 'R' 157 #define SHOW_st_dev 'd' 158 #define SHOW_st_ino 'i' 159 #define SHOW_st_mode 'p' 160 #define SHOW_st_nlink 'l' 161 #define SHOW_st_uid 'u' 162 #define SHOW_st_gid 'g' 163 #define SHOW_st_rdev 'r' 164 #define SHOW_st_atime 'a' 165 #define SHOW_st_mtime 'm' 166 #define SHOW_st_ctime 'c' 167 #define SHOW_st_btime 'B' 168 #define SHOW_st_size 'z' 169 #define SHOW_st_blocks 'b' 170 #define SHOW_st_blksize 'k' 171 #define SHOW_st_flags 'f' 172 #define SHOW_st_gen 'v' 173 #define SHOW_symlink 'Y' 174 #define SHOW_filetype 'T' 175 #define SHOW_filename 'N' 176 #define SHOW_sizerdev 'Z' 177 178 static void usage(const char *) __dead2; 179 static void output(const struct stat *, const char *, 180 const char *, int, int); 181 static int format1(const struct stat *, /* stat info */ 182 const char *, /* the file name */ 183 const char *, int, /* the format string itself */ 184 char *, size_t, /* a place to put the output */ 185 int, int, int, int, /* the parsed format */ 186 int, int); 187 #if HAVE_DEVNAME 188 static int hex2byte(const char [2]); 189 #endif 190 #if HAVE_STRUCT_STAT_ST_FLAGS 191 static char *xfflagstostr(unsigned long); 192 #endif 193 194 static const char *timefmt; 195 static int linkfail; 196 197 #define addchar(s, c, nl) \ 198 do { \ 199 fputc((c), (s)); \ 200 (*nl) = ((c) == '\n'); \ 201 } while (0/*CONSTCOND*/) 202 203 int 204 main(int argc, char *argv[]) 205 { 206 struct stat st; 207 int ch, rc, errs, am_readlink; 208 int lsF, fmtchar, usestat, nfs_handle, fn, nonl, quiet; 209 const char *statfmt, *options, *synopsis; 210 #if HAVE_DEVNAME 211 char dname[sizeof _PATH_DEV + MNAMELEN] = _PATH_DEV; 212 fhandle_t fhnd; 213 #endif 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 HAVE_DEVNAME 326 if (fdevname_r(STDIN_FILENO, dname + 327 sizeof _PATH_DEV - 1, MNAMELEN) == 0) 328 file = dname; 329 else 330 #endif 331 file = "(stdin)"; 332 rc = fstat(STDIN_FILENO, &st); 333 } else { 334 file = argv[0]; 335 if (nfs_handle) { 336 #if HAVE_DEVNAME 337 int j; 338 339 rc = 0; 340 bzero(&fhnd, sizeof(fhnd)); 341 j = MIN(2 * sizeof(fhnd), strlen(file)); 342 if ((j & 1) != 0) { 343 rc = -1; 344 } else { 345 while (j) { 346 rc = hex2byte(&file[j - 2]); 347 if (rc == -1) 348 break; 349 ((char*) &fhnd)[j / 2 - 1] = rc; 350 j -= 2; 351 } 352 } 353 if (rc == -1) 354 errno = EINVAL; 355 else 356 rc = fhstat(&fhnd, &st); 357 #else 358 err(1, "-H is disabled in btools"); 359 #endif 360 } else if (usestat) { 361 /* 362 * Try stat() and if it fails, fall back to 363 * lstat() just in case we're examining a 364 * broken symlink. 365 */ 366 if ((rc = stat(file, &st)) == -1 && 367 errno == ENOENT && 368 (rc = lstat(file, &st)) == -1) 369 errno = ENOENT; 370 } 371 else 372 rc = lstat(file, &st); 373 } 374 375 if (rc == -1) { 376 errs = 1; 377 linkfail = 1; 378 if (!quiet) 379 warn("%s: stat", file); 380 } 381 else 382 output(&st, file, statfmt, fn, nonl); 383 384 argv++; 385 argc--; 386 fn++; 387 } while (argc > 0); 388 389 return (am_readlink ? linkfail : errs); 390 } 391 392 #if HAVE_STRUCT_STAT_ST_FLAGS 393 /* 394 * fflagstostr() wrapper that leaks only once 395 */ 396 static char * 397 xfflagstostr(unsigned long fflags) 398 { 399 static char *str = NULL; 400 401 if (str != NULL) 402 free(str); 403 404 str = fflagstostr(fflags); 405 if (str == NULL) 406 err(1, "fflagstostr"); 407 return (str); 408 } 409 #endif /* HAVE_STRUCT_STAT_ST_FLAGS */ 410 411 static void 412 usage(const char *synopsis) 413 { 414 415 fprintf(stderr, "usage: %s %s\n", getprogname(), synopsis); 416 exit(1); 417 } 418 419 /* 420 * Parses a format string. 421 */ 422 static void 423 output(const struct stat *st, const char *file, 424 const char *statfmt, int fn, int nonl) 425 { 426 int flags, size, prec, ofmt, hilo, what; 427 char buf[PATH_MAX + 4 + 1]; 428 const char *subfmt; 429 int nl, t, i; 430 431 nl = 1; 432 while (*statfmt != '\0') { 433 434 /* 435 * Non-format characters go straight out. 436 */ 437 if (*statfmt != FMT_MAGIC) { 438 addchar(stdout, *statfmt, &nl); 439 statfmt++; 440 continue; 441 } 442 443 /* 444 * The current format "substring" starts here, 445 * and then we skip the magic. 446 */ 447 subfmt = statfmt; 448 statfmt++; 449 450 /* 451 * Some simple one-character "formats". 452 */ 453 switch (*statfmt) { 454 case SIMPLE_NEWLINE: 455 addchar(stdout, '\n', &nl); 456 statfmt++; 457 continue; 458 case SIMPLE_TAB: 459 addchar(stdout, '\t', &nl); 460 statfmt++; 461 continue; 462 case SIMPLE_PERCENT: 463 addchar(stdout, '%', &nl); 464 statfmt++; 465 continue; 466 case SIMPLE_NUMBER: { 467 char num[12], *p; 468 469 snprintf(num, sizeof(num), "%d", fn); 470 for (p = &num[0]; *p; p++) 471 addchar(stdout, *p, &nl); 472 statfmt++; 473 continue; 474 } 475 } 476 477 /* 478 * This must be an actual format string. Format strings are 479 * similar to printf(3) formats up to a point, and are of 480 * the form: 481 * 482 * % required start of format 483 * [-# +0] opt. format characters 484 * size opt. field width 485 * . opt. decimal separator, followed by 486 * prec opt. precision 487 * fmt opt. output specifier (string, numeric, etc.) 488 * sub opt. sub field specifier (high, middle, low) 489 * datum required field specifier (size, mode, etc) 490 * 491 * Only the % and the datum selector are required. All data 492 * have reasonable default output forms. The "sub" specifier 493 * only applies to certain data (mode, dev, rdev, filetype). 494 * The symlink output defaults to STRING, yet will only emit 495 * the leading " -> " if STRING is explicitly specified. The 496 * sizerdev datum will generate rdev output for character or 497 * block devices, and size output for all others. 498 */ 499 flags = 0; 500 do { 501 if (*statfmt == FMT_POUND) 502 flags |= FLAG_POUND; 503 else if (*statfmt == FMT_SPACE) 504 flags |= FLAG_SPACE; 505 else if (*statfmt == FMT_PLUS) 506 flags |= FLAG_PLUS; 507 else if (*statfmt == FMT_ZERO) 508 flags |= FLAG_ZERO; 509 else if (*statfmt == FMT_MINUS) 510 flags |= FLAG_MINUS; 511 else 512 break; 513 statfmt++; 514 } while (1/*CONSTCOND*/); 515 516 size = -1; 517 if (isdigit((unsigned)*statfmt)) { 518 size = 0; 519 while (isdigit((unsigned)*statfmt)) { 520 size = (size * 10) + (*statfmt - '0'); 521 statfmt++; 522 if (size < 0) 523 goto badfmt; 524 } 525 } 526 527 prec = -1; 528 if (*statfmt == FMT_DOT) { 529 statfmt++; 530 531 prec = 0; 532 while (isdigit((unsigned)*statfmt)) { 533 prec = (prec * 10) + (*statfmt - '0'); 534 statfmt++; 535 if (prec < 0) 536 goto badfmt; 537 } 538 } 539 540 #define fmtcase(x, y) case (y): (x) = (y); statfmt++; break 541 #define fmtcasef(x, y, z) case (y): (x) = (z); statfmt++; break 542 switch (*statfmt) { 543 fmtcasef(ofmt, FMT_DECIMAL, FMTF_DECIMAL); 544 fmtcasef(ofmt, FMT_OCTAL, FMTF_OCTAL); 545 fmtcasef(ofmt, FMT_UNSIGNED, FMTF_UNSIGNED); 546 fmtcasef(ofmt, FMT_HEX, FMTF_HEX); 547 fmtcasef(ofmt, FMT_FLOAT, FMTF_FLOAT); 548 fmtcasef(ofmt, FMT_STRING, FMTF_STRING); 549 default: 550 ofmt = 0; 551 break; 552 } 553 554 switch (*statfmt) { 555 fmtcase(hilo, HIGH_PIECE); 556 fmtcase(hilo, MIDDLE_PIECE); 557 fmtcase(hilo, LOW_PIECE); 558 default: 559 hilo = 0; 560 break; 561 } 562 563 switch (*statfmt) { 564 fmtcase(what, SHOW_realpath); 565 fmtcase(what, SHOW_st_dev); 566 fmtcase(what, SHOW_st_ino); 567 fmtcase(what, SHOW_st_mode); 568 fmtcase(what, SHOW_st_nlink); 569 fmtcase(what, SHOW_st_uid); 570 fmtcase(what, SHOW_st_gid); 571 fmtcase(what, SHOW_st_rdev); 572 fmtcase(what, SHOW_st_atime); 573 fmtcase(what, SHOW_st_mtime); 574 fmtcase(what, SHOW_st_ctime); 575 fmtcase(what, SHOW_st_btime); 576 fmtcase(what, SHOW_st_size); 577 fmtcase(what, SHOW_st_blocks); 578 fmtcase(what, SHOW_st_blksize); 579 fmtcase(what, SHOW_st_flags); 580 fmtcase(what, SHOW_st_gen); 581 fmtcase(what, SHOW_symlink); 582 fmtcase(what, SHOW_filetype); 583 fmtcase(what, SHOW_filename); 584 fmtcase(what, SHOW_sizerdev); 585 default: 586 goto badfmt; 587 } 588 #undef fmtcasef 589 #undef fmtcase 590 591 t = format1(st, 592 file, 593 subfmt, statfmt - subfmt, 594 buf, sizeof(buf), 595 flags, size, prec, ofmt, hilo, what); 596 597 for (i = 0; i < t && i < (int)(sizeof(buf) - 1); i++) 598 addchar(stdout, buf[i], &nl); 599 600 continue; 601 602 badfmt: 603 errx(1, "%.*s: bad format", 604 (int)(statfmt - subfmt + 1), subfmt); 605 } 606 607 if (!nl && !nonl) 608 fputc('\n', stdout); 609 fflush(stdout); 610 } 611 612 /* 613 * Arranges output according to a single parsed format substring. 614 */ 615 static int 616 format1(const struct stat *st, 617 const char *file, 618 const char *fmt, int flen, 619 char *buf, size_t blen, 620 int flags, int size, int prec, int ofmt, 621 int hilo, int what) 622 { 623 u_int64_t data; 624 char *stmp, lfmt[24], tmp[20]; 625 const char *sdata; 626 char smode[12], sid[12], path[PATH_MAX + 4]; 627 struct passwd *pw; 628 struct group *gr; 629 const struct timespec *tsp; 630 struct timespec ts; 631 struct tm *tm; 632 int l, small, formats; 633 634 tsp = NULL; 635 formats = 0; 636 small = 0; 637 638 /* 639 * First, pick out the data and tweak it based on hilo or 640 * specified output format (symlink output only). 641 */ 642 switch (what) { 643 case SHOW_st_dev: 644 case SHOW_st_rdev: 645 small = (sizeof(st->st_dev) == 4); 646 data = (what == SHOW_st_dev) ? st->st_dev : st->st_rdev; 647 #if HAVE_DEVNAME 648 sdata = (what == SHOW_st_dev) ? 649 devname(st->st_dev, S_IFBLK) : 650 devname(st->st_rdev, 651 S_ISCHR(st->st_mode) ? S_IFCHR : 652 S_ISBLK(st->st_mode) ? S_IFBLK : 653 0U); 654 #else 655 sdata = NULL; 656 #endif /* HAVE_DEVNAME */ 657 if (sdata == NULL) 658 sdata = "???"; 659 if (hilo == HIGH_PIECE) { 660 data = major(data); 661 hilo = 0; 662 } 663 else if (hilo == LOW_PIECE) { 664 data = minor((unsigned)data); 665 hilo = 0; 666 } 667 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 668 #if HAVE_DEVNAME 669 FMTF_STRING; 670 #else /* HAVE_DEVNAME */ 671 0; 672 #endif /* HAVE_DEVNAME */ 673 if (ofmt == 0) 674 ofmt = FMTF_UNSIGNED; 675 break; 676 case SHOW_st_ino: 677 small = (sizeof(st->st_ino) == 4); 678 data = st->st_ino; 679 sdata = NULL; 680 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 681 if (ofmt == 0) 682 ofmt = FMTF_UNSIGNED; 683 break; 684 case SHOW_st_mode: 685 small = (sizeof(st->st_mode) == 4); 686 data = st->st_mode; 687 strmode(st->st_mode, smode); 688 stmp = smode; 689 l = strlen(stmp); 690 if (stmp[l - 1] == ' ') 691 stmp[--l] = '\0'; 692 if (hilo == HIGH_PIECE) { 693 data >>= 12; 694 stmp += 1; 695 stmp[3] = '\0'; 696 hilo = 0; 697 } 698 else if (hilo == MIDDLE_PIECE) { 699 data = (data >> 9) & 07; 700 stmp += 4; 701 stmp[3] = '\0'; 702 hilo = 0; 703 } 704 else if (hilo == LOW_PIECE) { 705 data &= 0777; 706 stmp += 7; 707 stmp[3] = '\0'; 708 hilo = 0; 709 } 710 sdata = stmp; 711 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 712 FMTF_STRING; 713 if (ofmt == 0) 714 ofmt = FMTF_OCTAL; 715 break; 716 case SHOW_st_nlink: 717 small = (sizeof(st->st_dev) == 4); 718 data = st->st_nlink; 719 sdata = NULL; 720 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 721 if (ofmt == 0) 722 ofmt = FMTF_UNSIGNED; 723 break; 724 case SHOW_st_uid: 725 small = (sizeof(st->st_uid) == 4); 726 data = st->st_uid; 727 if ((pw = getpwuid(st->st_uid)) != NULL) 728 sdata = pw->pw_name; 729 else { 730 snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_uid); 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_gid: 739 small = (sizeof(st->st_gid) == 4); 740 data = st->st_gid; 741 if ((gr = getgrgid(st->st_gid)) != NULL) 742 sdata = gr->gr_name; 743 else { 744 snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_gid); 745 sdata = sid; 746 } 747 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 748 FMTF_STRING; 749 if (ofmt == 0) 750 ofmt = FMTF_UNSIGNED; 751 break; 752 case SHOW_st_atime: 753 tsp = &st->st_atimespec; 754 /* FALLTHROUGH */ 755 case SHOW_st_mtime: 756 if (tsp == NULL) 757 tsp = &st->st_mtimespec; 758 /* FALLTHROUGH */ 759 case SHOW_st_ctime: 760 if (tsp == NULL) 761 tsp = &st->st_ctimespec; 762 /* FALLTHROUGH */ 763 #if HAVE_STRUCT_STAT_ST_BIRTHTIME 764 case SHOW_st_btime: 765 if (tsp == NULL) 766 tsp = &st->st_birthtimespec; 767 #endif /* HAVE_STRUCT_STAT_ST_BIRTHTIME */ 768 ts = *tsp; /* copy so we can muck with it */ 769 small = (sizeof(ts.tv_sec) == 4); 770 data = ts.tv_sec; 771 tm = localtime(&ts.tv_sec); 772 if (tm == NULL) { 773 ts.tv_sec = 0; 774 tm = localtime(&ts.tv_sec); 775 } 776 strftime(path, sizeof(path), timefmt, tm); 777 sdata = path; 778 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 779 FMTF_FLOAT | FMTF_STRING; 780 if (ofmt == 0) 781 ofmt = FMTF_DECIMAL; 782 break; 783 case SHOW_st_size: 784 small = (sizeof(st->st_size) == 4); 785 data = st->st_size; 786 sdata = NULL; 787 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 788 if (ofmt == 0) 789 ofmt = FMTF_UNSIGNED; 790 break; 791 case SHOW_st_blocks: 792 small = (sizeof(st->st_blocks) == 4); 793 data = st->st_blocks; 794 sdata = NULL; 795 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 796 if (ofmt == 0) 797 ofmt = FMTF_UNSIGNED; 798 break; 799 case SHOW_st_blksize: 800 small = (sizeof(st->st_blksize) == 4); 801 data = st->st_blksize; 802 sdata = NULL; 803 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 804 if (ofmt == 0) 805 ofmt = FMTF_UNSIGNED; 806 break; 807 #if HAVE_STRUCT_STAT_ST_FLAGS 808 case SHOW_st_flags: 809 small = (sizeof(st->st_flags) == 4); 810 data = st->st_flags; 811 sdata = xfflagstostr(st->st_flags); 812 if (*sdata == '\0') 813 sdata = "-"; 814 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 815 FMTF_STRING; 816 if (ofmt == 0) 817 ofmt = FMTF_UNSIGNED; 818 break; 819 #endif /* HAVE_STRUCT_STAT_ST_FLAGS */ 820 #if HAVE_STRUCT_STAT_ST_GEN 821 case SHOW_st_gen: 822 small = (sizeof(st->st_gen) == 4); 823 data = st->st_gen; 824 sdata = NULL; 825 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 826 if (ofmt == 0) 827 ofmt = FMTF_UNSIGNED; 828 break; 829 #endif /* HAVE_STRUCT_STAT_ST_GEN */ 830 case SHOW_realpath: 831 small = 0; 832 data = 0; 833 if (file == NULL) { 834 strlcpy(path, "(stdin)", sizeof(path)); 835 sdata = path; 836 } else { 837 snprintf(path, sizeof(path), " -> "); 838 if (realpath(file, path + 4) == NULL) { 839 linkfail = 1; 840 l = 0; 841 path[0] = '\0'; 842 } 843 sdata = path + (ofmt == FMTF_STRING ? 0 : 4); 844 } 845 846 formats = FMTF_STRING; 847 if (ofmt == 0) 848 ofmt = FMTF_STRING; 849 break; 850 case SHOW_symlink: 851 small = 0; 852 data = 0; 853 if (S_ISLNK(st->st_mode)) { 854 snprintf(path, sizeof(path), " -> "); 855 l = readlink(file, path + 4, sizeof(path) - 4 - 1); 856 if (l == -1) { 857 linkfail = 1; 858 l = 0; 859 path[0] = '\0'; 860 } 861 path[l + 4] = '\0'; 862 sdata = path + (ofmt == FMTF_STRING ? 0 : 4); 863 } 864 else { 865 linkfail = 1; 866 sdata = ""; 867 } 868 formats = FMTF_STRING; 869 if (ofmt == 0) 870 ofmt = FMTF_STRING; 871 break; 872 case SHOW_filetype: 873 small = 0; 874 data = 0; 875 sdata = ""; 876 if (hilo == 0 || hilo == LOW_PIECE) { 877 switch (st->st_mode & S_IFMT) { 878 case S_IFIFO: sdata = "|"; break; 879 case S_IFDIR: sdata = "/"; break; 880 case S_IFREG: 881 if (st->st_mode & 882 (S_IXUSR | S_IXGRP | S_IXOTH)) 883 sdata = "*"; 884 break; 885 case S_IFLNK: sdata = "@"; break; 886 case S_IFSOCK: sdata = "="; break; 887 #ifdef S_IFWHT 888 case S_IFWHT: sdata = "%"; break; 889 #endif /* S_IFWHT */ 890 #ifdef S_IFDOOR 891 case S_IFDOOR: sdata = ">"; break; 892 #endif /* S_IFDOOR */ 893 } 894 hilo = 0; 895 } 896 else if (hilo == HIGH_PIECE) { 897 switch (st->st_mode & S_IFMT) { 898 case S_IFIFO: sdata = "Fifo File"; break; 899 case S_IFCHR: sdata = "Character Device"; break; 900 case S_IFDIR: sdata = "Directory"; break; 901 case S_IFBLK: sdata = "Block Device"; break; 902 case S_IFREG: sdata = "Regular File"; break; 903 case S_IFLNK: sdata = "Symbolic Link"; break; 904 case S_IFSOCK: sdata = "Socket"; break; 905 #ifdef S_IFWHT 906 case S_IFWHT: sdata = "Whiteout File"; break; 907 #endif /* S_IFWHT */ 908 #ifdef S_IFDOOR 909 case S_IFDOOR: sdata = "Door"; break; 910 #endif /* S_IFDOOR */ 911 default: sdata = "???"; break; 912 } 913 hilo = 0; 914 } 915 formats = FMTF_STRING; 916 if (ofmt == 0) 917 ofmt = FMTF_STRING; 918 break; 919 case SHOW_filename: 920 small = 0; 921 data = 0; 922 strlcpy(path, file, sizeof(path)); 923 sdata = path; 924 formats = FMTF_STRING; 925 if (ofmt == 0) 926 ofmt = FMTF_STRING; 927 break; 928 case SHOW_sizerdev: 929 if (S_ISCHR(st->st_mode) || S_ISBLK(st->st_mode)) { 930 char majdev[20], mindev[20]; 931 int l1, l2; 932 933 l1 = format1(st, 934 file, 935 fmt, flen, 936 majdev, sizeof(majdev), 937 flags, size, prec, 938 ofmt, HIGH_PIECE, SHOW_st_rdev); 939 l2 = format1(st, 940 file, 941 fmt, flen, 942 mindev, sizeof(mindev), 943 flags, size, prec, 944 ofmt, LOW_PIECE, SHOW_st_rdev); 945 return (snprintf(buf, blen, "%.*s,%.*s", 946 l1, majdev, l2, mindev)); 947 } 948 else { 949 return (format1(st, 950 file, 951 fmt, flen, 952 buf, blen, 953 flags, size, prec, 954 ofmt, 0, SHOW_st_size)); 955 } 956 /*NOTREACHED*/ 957 default: 958 errx(1, "%.*s: bad format", (int)flen, fmt); 959 } 960 961 /* 962 * If a subdatum was specified but not supported, or an output 963 * format was selected that is not supported, that's an error. 964 */ 965 if (hilo != 0 || (ofmt & formats) == 0) 966 errx(1, "%.*s: bad format", (int)flen, fmt); 967 968 /* 969 * Assemble the format string for passing to printf(3). 970 */ 971 lfmt[0] = '\0'; 972 strcat(lfmt, "%"); 973 if (flags & FLAG_POUND) 974 strcat(lfmt, "#"); 975 if (flags & FLAG_SPACE) 976 strcat(lfmt, " "); 977 if (flags & FLAG_PLUS) 978 strcat(lfmt, "+"); 979 if (flags & FLAG_MINUS) 980 strcat(lfmt, "-"); 981 if (flags & FLAG_ZERO) 982 strcat(lfmt, "0"); 983 984 /* 985 * Only the timespecs support the FLOAT output format, and that 986 * requires work that differs from the other formats. 987 */ 988 if (ofmt == FMTF_FLOAT) { 989 /* 990 * Nothing after the decimal point, so just print seconds. 991 */ 992 if (prec == 0) { 993 if (size != -1) { 994 snprintf(tmp, sizeof(tmp), "%d", size); 995 strcat(lfmt, tmp); 996 } 997 strcat(lfmt, "lld"); 998 return (snprintf(buf, blen, lfmt, 999 (long long)ts.tv_sec)); 1000 } 1001 1002 /* 1003 * Unspecified precision gets all the precision we have: 1004 * 9 digits. 1005 */ 1006 if (prec == -1) 1007 prec = 9; 1008 1009 /* 1010 * Adjust the size for the decimal point and the digits 1011 * that will follow. 1012 */ 1013 size -= prec + 1; 1014 1015 /* 1016 * Any leftover size that's legitimate will be used. 1017 */ 1018 if (size > 0) { 1019 snprintf(tmp, sizeof(tmp), "%d", size); 1020 strcat(lfmt, tmp); 1021 } 1022 /* Seconds: time_t cast to long long. */ 1023 strcat(lfmt, "lld"); 1024 1025 /* 1026 * The stuff after the decimal point always needs zero 1027 * filling. 1028 */ 1029 strcat(lfmt, ".%0"); 1030 1031 /* 1032 * We can "print" at most nine digits of precision. The 1033 * rest we will pad on at the end. 1034 * 1035 * Nanoseconds: long. 1036 */ 1037 snprintf(tmp, sizeof(tmp), "%dld", prec > 9 ? 9 : prec); 1038 strcat(lfmt, tmp); 1039 1040 /* 1041 * For precision of less that nine digits, trim off the 1042 * less significant figures. 1043 */ 1044 for (; prec < 9; prec++) 1045 ts.tv_nsec /= 10; 1046 1047 /* 1048 * Use the format, and then tack on any zeroes that 1049 * might be required to make up the requested precision. 1050 */ 1051 l = snprintf(buf, blen, lfmt, (long long)ts.tv_sec, ts.tv_nsec); 1052 for (; prec > 9 && l < (int)blen; prec--, l++) 1053 strcat(buf, "0"); 1054 return (l); 1055 } 1056 1057 /* 1058 * Add on size and precision, if specified, to the format. 1059 */ 1060 if (size != -1) { 1061 snprintf(tmp, sizeof(tmp), "%d", size); 1062 strcat(lfmt, tmp); 1063 } 1064 if (prec != -1) { 1065 snprintf(tmp, sizeof(tmp), ".%d", prec); 1066 strcat(lfmt, tmp); 1067 } 1068 1069 /* 1070 * String output uses the temporary sdata. 1071 */ 1072 if (ofmt == FMTF_STRING) { 1073 if (sdata == NULL) 1074 errx(1, "%.*s: bad format", (int)flen, fmt); 1075 strcat(lfmt, "s"); 1076 return (snprintf(buf, blen, lfmt, sdata)); 1077 } 1078 1079 /* 1080 * Ensure that sign extension does not cause bad looking output 1081 * for some forms. 1082 */ 1083 if (small && ofmt != FMTF_DECIMAL) 1084 data = (u_int32_t)data; 1085 1086 /* 1087 * The four "numeric" output forms. 1088 */ 1089 strcat(lfmt, "ll"); 1090 switch (ofmt) { 1091 case FMTF_DECIMAL: strcat(lfmt, "d"); break; 1092 case FMTF_OCTAL: strcat(lfmt, "o"); break; 1093 case FMTF_UNSIGNED: strcat(lfmt, "u"); break; 1094 case FMTF_HEX: strcat(lfmt, "x"); break; 1095 } 1096 1097 return (snprintf(buf, blen, lfmt, data)); 1098 } 1099 1100 #if HAVE_DEVNAME 1101 #define hex2nibble(c) (c <= '9' ? c - '0' : toupper(c) - 'A' + 10) 1102 static int 1103 hex2byte(const char c[2]) { 1104 if (!(ishexnumber(c[0]) && ishexnumber(c[1]))) 1105 return -1; 1106 return (hex2nibble(c[0]) << 4) + hex2nibble(c[1]); 1107 } 1108 #endif 1109