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 30 #include <sys/cdefs.h> 31 #if 0 32 #ifndef lint 33 __RCSID("$NetBSD: stat.c,v 1.13 2003/07/25 03:21:17 atatat Exp $"); 34 #endif 35 #endif 36 37 __FBSDID("$FreeBSD$"); 38 39 #if HAVE_CONFIG_H 40 #include "config.h" 41 #else /* HAVE_CONFIG_H */ 42 #define HAVE_STRUCT_STAT_ST_FLAGS 1 43 #define HAVE_STRUCT_STAT_ST_GEN 1 44 #define HAVE_STRUCT_STAT_ST_BIRTHTIME 1 45 #define HAVE_STRUCT_STAT_ST_MTIMENSEC 1 46 #define HAVE_DEVNAME 1 47 #endif /* HAVE_CONFIG_H */ 48 49 #include <sys/param.h> 50 #include <sys/types.h> 51 #include <sys/stat.h> 52 53 #include <ctype.h> 54 #include <err.h> 55 #include <grp.h> 56 #include <limits.h> 57 #include <paths.h> 58 #include <pwd.h> 59 #include <stdio.h> 60 #include <stdlib.h> 61 #include <string.h> 62 #include <time.h> 63 #include <unistd.h> 64 65 #if HAVE_STRUCT_STAT_ST_FLAGS 66 #define DEF_F "%#Xf " 67 #define RAW_F "%f " 68 #define SHELL_F " st_flags=%f" 69 #else /* HAVE_STRUCT_STAT_ST_FLAGS */ 70 #define DEF_F 71 #define RAW_F 72 #define SHELL_F 73 #endif /* HAVE_STRUCT_STAT_ST_FLAGS */ 74 75 #if HAVE_STRUCT_STAT_ST_BIRTHTIME 76 #define DEF_B "\"%SB\" " 77 #define RAW_B "%B " 78 #define SHELL_B "st_birthtime=%B " 79 #else /* HAVE_STRUCT_STAT_ST_BIRTHTIME */ 80 #define DEF_B 81 #define RAW_B 82 #define SHELL_B 83 #endif /* HAVE_STRUCT_STAT_ST_BIRTHTIME */ 84 85 #if HAVE_STRUCT_STAT_ST_ATIM 86 #define st_atimespec st_atim 87 #define st_ctimespec st_ctim 88 #define st_mtimespec st_mtim 89 #endif /* HAVE_STRUCT_STAT_ST_ATIM */ 90 91 #define DEF_FORMAT \ 92 "%d %i %Sp %l %Su %Sg %r %z \"%Sa\" \"%Sm\" \"%Sc\" " DEF_B \ 93 "%k %b " DEF_F "%N" 94 #define RAW_FORMAT "%d %i %#p %l %u %g %r %z %a %m %c " RAW_B \ 95 "%k %b " RAW_F "%N" 96 #define LS_FORMAT "%Sp %l %Su %Sg %Z %Sm %N%SY" 97 #define LSF_FORMAT "%Sp %l %Su %Sg %Z %Sm %N%T%SY" 98 #define SHELL_FORMAT \ 99 "st_dev=%d st_ino=%i st_mode=%#p st_nlink=%l " \ 100 "st_uid=%u st_gid=%g st_rdev=%r st_size=%z " \ 101 "st_atime=%a st_mtime=%m st_ctime=%c " SHELL_B \ 102 "st_blksize=%k st_blocks=%b" SHELL_F 103 #define LINUX_FORMAT \ 104 " File: \"%N\"%n" \ 105 " Size: %-11z FileType: %HT%n" \ 106 " Mode: (%OMp%03OLp/%.10Sp) Uid: (%5u/%8Su) Gid: (%5g/%8Sg)%n" \ 107 "Device: %Hd,%Ld Inode: %i Links: %l%n" \ 108 "Access: %Sa%n" \ 109 "Modify: %Sm%n" \ 110 "Change: %Sc" 111 112 #define TIME_FORMAT "%b %e %T %Y" 113 114 #define FLAG_POUND 0x01 115 #define FLAG_SPACE 0x02 116 #define FLAG_PLUS 0x04 117 #define FLAG_ZERO 0x08 118 #define FLAG_MINUS 0x10 119 120 /* 121 * These format characters must all be unique, except the magic one. 122 */ 123 #define FMT_MAGIC '%' 124 #define FMT_DOT '.' 125 126 #define SIMPLE_NEWLINE 'n' 127 #define SIMPLE_TAB 't' 128 #define SIMPLE_PERCENT '%' 129 #define SIMPLE_NUMBER '@' 130 131 #define FMT_POUND '#' 132 #define FMT_SPACE ' ' 133 #define FMT_PLUS '+' 134 #define FMT_ZERO '0' 135 #define FMT_MINUS '-' 136 137 #define FMT_DECIMAL 'D' 138 #define FMT_OCTAL 'O' 139 #define FMT_UNSIGNED 'U' 140 #define FMT_HEX 'X' 141 #define FMT_FLOAT 'F' 142 #define FMT_STRING 'S' 143 144 #define FMTF_DECIMAL 0x01 145 #define FMTF_OCTAL 0x02 146 #define FMTF_UNSIGNED 0x04 147 #define FMTF_HEX 0x08 148 #define FMTF_FLOAT 0x10 149 #define FMTF_STRING 0x20 150 151 #define HIGH_PIECE 'H' 152 #define MIDDLE_PIECE 'M' 153 #define LOW_PIECE 'L' 154 155 #define SHOW_st_dev 'd' 156 #define SHOW_st_ino 'i' 157 #define SHOW_st_mode 'p' 158 #define SHOW_st_nlink 'l' 159 #define SHOW_st_uid 'u' 160 #define SHOW_st_gid 'g' 161 #define SHOW_st_rdev 'r' 162 #define SHOW_st_atime 'a' 163 #define SHOW_st_mtime 'm' 164 #define SHOW_st_ctime 'c' 165 #define SHOW_st_btime 'B' 166 #define SHOW_st_size 'z' 167 #define SHOW_st_blocks 'b' 168 #define SHOW_st_blksize 'k' 169 #define SHOW_st_flags 'f' 170 #define SHOW_st_gen 'v' 171 #define SHOW_symlink 'Y' 172 #define SHOW_filetype 'T' 173 #define SHOW_filename 'N' 174 #define SHOW_sizerdev 'Z' 175 176 void usage(const char *); 177 void output(const struct stat *, const char *, 178 const char *, int, int, int); 179 int format1(const struct stat *, /* stat info */ 180 const char *, /* the file name */ 181 const char *, int, /* the format string itself */ 182 char *, size_t, /* a place to put the output */ 183 int, int, int, int, /* the parsed format */ 184 int, int); 185 #if HAVE_STRUCT_STAT_ST_FLAGS 186 char *xfflagstostr(unsigned long); 187 #endif 188 189 char *timefmt; 190 int linkfail; 191 192 #define addchar(s, c, nl) \ 193 do { \ 194 (void)fputc((c), (s)); \ 195 (*nl) = ((c) == '\n'); \ 196 } while (0/*CONSTCOND*/) 197 198 int 199 main(int argc, char *argv[]) 200 { 201 struct stat st; 202 int ch, rc, errs, am_readlink; 203 int lsF, fmtchar, usestat, fn, nonl, quiet; 204 char *statfmt, *options, *synopsis; 205 char dname[sizeof _PATH_DEV + SPECNAMELEN] = _PATH_DEV; 206 const char *file; 207 208 am_readlink = 0; 209 lsF = 0; 210 fmtchar = '\0'; 211 usestat = 0; 212 nonl = 0; 213 quiet = 0; 214 linkfail = 0; 215 statfmt = NULL; 216 timefmt = NULL; 217 218 if (strcmp(getprogname(), "readlink") == 0) { 219 am_readlink = 1; 220 options = "n"; 221 synopsis = "[-n] [file ...]"; 222 statfmt = "%Y"; 223 fmtchar = 'f'; 224 quiet = 1; 225 } else { 226 options = "f:FlLnqrst:x"; 227 synopsis = "[-FlLnqrsx] [-f format] [-t timefmt] [file ...]"; 228 } 229 230 while ((ch = getopt(argc, argv, options)) != -1) 231 switch (ch) { 232 case 'F': 233 lsF = 1; 234 break; 235 case 'L': 236 usestat = 1; 237 break; 238 case 'n': 239 nonl = 1; 240 break; 241 case 'q': 242 quiet = 1; 243 break; 244 case 'f': 245 statfmt = optarg; 246 /* FALLTHROUGH */ 247 case 'l': 248 case 'r': 249 case 's': 250 case 'x': 251 if (fmtchar != 0) 252 errx(1, "can't use format '%c' with '%c'", 253 fmtchar, ch); 254 fmtchar = ch; 255 break; 256 case 't': 257 timefmt = optarg; 258 break; 259 default: 260 usage(synopsis); 261 } 262 263 argc -= optind; 264 argv += optind; 265 fn = 1; 266 267 if (fmtchar == '\0') { 268 if (lsF) 269 fmtchar = 'l'; 270 else { 271 fmtchar = 'f'; 272 statfmt = DEF_FORMAT; 273 } 274 } 275 276 if (lsF && fmtchar != 'l') 277 errx(1, "can't use format '%c' with -F", fmtchar); 278 279 switch (fmtchar) { 280 case 'f': 281 /* statfmt already set */ 282 break; 283 case 'l': 284 statfmt = lsF ? LSF_FORMAT : LS_FORMAT; 285 break; 286 case 'r': 287 statfmt = RAW_FORMAT; 288 break; 289 case 's': 290 statfmt = SHELL_FORMAT; 291 break; 292 case 'x': 293 statfmt = LINUX_FORMAT; 294 if (timefmt == NULL) 295 timefmt = "%c"; 296 break; 297 default: 298 usage(synopsis); 299 /*NOTREACHED*/ 300 } 301 302 if (timefmt == NULL) 303 timefmt = TIME_FORMAT; 304 305 errs = 0; 306 do { 307 if (argc == 0) { 308 if (fdevname_r(STDIN_FILENO, dname + 309 sizeof _PATH_DEV - 1, SPECNAMELEN) != NULL) 310 file = dname; 311 else 312 file = "(stdin)"; 313 rc = fstat(STDIN_FILENO, &st); 314 } else { 315 file = argv[0]; 316 if (usestat) 317 rc = stat(file, &st); 318 else 319 rc = lstat(file, &st); 320 } 321 322 if (rc == -1) { 323 errs = 1; 324 linkfail = 1; 325 if (!quiet) 326 warn("%s: stat", file); 327 } 328 else 329 output(&st, file, statfmt, fn, nonl, quiet); 330 331 argv++; 332 argc--; 333 fn++; 334 } while (argc > 0); 335 336 return (am_readlink ? linkfail : errs); 337 } 338 339 #if HAVE_STRUCT_STAT_ST_FLAGS 340 /* 341 * fflagstostr() wrapper that leaks only once 342 */ 343 char * 344 xfflagstostr(unsigned long fflags) 345 { 346 static char *str = NULL; 347 348 if (str != NULL) 349 free(str); 350 351 str = fflagstostr(fflags); 352 if (str == NULL) 353 err(1, "fflagstostr"); 354 return (str); 355 } 356 #endif /* HAVE_STRUCT_STAT_ST_FLAGS */ 357 358 void 359 usage(const char *synopsis) 360 { 361 362 (void)fprintf(stderr, "usage: %s %s\n", getprogname(), synopsis); 363 exit(1); 364 } 365 366 /* 367 * Parses a format string. 368 */ 369 void 370 output(const struct stat *st, const char *file, 371 const char *statfmt, int fn, int nonl, int quiet) 372 { 373 int flags, size, prec, ofmt, hilo, what; 374 char buf[PATH_MAX]; 375 const char *subfmt; 376 int nl, t, i; 377 378 nl = 1; 379 while (*statfmt != '\0') { 380 381 /* 382 * Non-format characters go straight out. 383 */ 384 if (*statfmt != FMT_MAGIC) { 385 addchar(stdout, *statfmt, &nl); 386 statfmt++; 387 continue; 388 } 389 390 /* 391 * The current format "substring" starts here, 392 * and then we skip the magic. 393 */ 394 subfmt = statfmt; 395 statfmt++; 396 397 /* 398 * Some simple one-character "formats". 399 */ 400 switch (*statfmt) { 401 case SIMPLE_NEWLINE: 402 addchar(stdout, '\n', &nl); 403 statfmt++; 404 continue; 405 case SIMPLE_TAB: 406 addchar(stdout, '\t', &nl); 407 statfmt++; 408 continue; 409 case SIMPLE_PERCENT: 410 addchar(stdout, '%', &nl); 411 statfmt++; 412 continue; 413 case SIMPLE_NUMBER: { 414 char num[12], *p; 415 416 snprintf(num, sizeof(num), "%d", fn); 417 for (p = &num[0]; *p; p++) 418 addchar(stdout, *p, &nl); 419 statfmt++; 420 continue; 421 } 422 } 423 424 /* 425 * This must be an actual format string. Format strings are 426 * similar to printf(3) formats up to a point, and are of 427 * the form: 428 * 429 * % required start of format 430 * [-# +0] opt. format characters 431 * size opt. field width 432 * . opt. decimal separator, followed by 433 * prec opt. precision 434 * fmt opt. output specifier (string, numeric, etc.) 435 * sub opt. sub field specifier (high, middle, low) 436 * datum required field specifier (size, mode, etc) 437 * 438 * Only the % and the datum selector are required. All data 439 * have reasonable default output forms. The "sub" specifier 440 * only applies to certain data (mode, dev, rdev, filetype). 441 * The symlink output defaults to STRING, yet will only emit 442 * the leading " -> " if STRING is explicitly specified. The 443 * sizerdev datum will generate rdev output for character or 444 * block devices, and size output for all others. 445 */ 446 flags = 0; 447 do { 448 if (*statfmt == FMT_POUND) 449 flags |= FLAG_POUND; 450 else if (*statfmt == FMT_SPACE) 451 flags |= FLAG_SPACE; 452 else if (*statfmt == FMT_PLUS) 453 flags |= FLAG_PLUS; 454 else if (*statfmt == FMT_ZERO) 455 flags |= FLAG_ZERO; 456 else if (*statfmt == FMT_MINUS) 457 flags |= FLAG_MINUS; 458 else 459 break; 460 statfmt++; 461 } while (1/*CONSTCOND*/); 462 463 size = -1; 464 if (isdigit((unsigned)*statfmt)) { 465 size = 0; 466 while (isdigit((unsigned)*statfmt)) { 467 size = (size * 10) + (*statfmt - '0'); 468 statfmt++; 469 if (size < 0) 470 goto badfmt; 471 } 472 } 473 474 prec = -1; 475 if (*statfmt == FMT_DOT) { 476 statfmt++; 477 478 prec = 0; 479 while (isdigit((unsigned)*statfmt)) { 480 prec = (prec * 10) + (*statfmt - '0'); 481 statfmt++; 482 if (prec < 0) 483 goto badfmt; 484 } 485 } 486 487 #define fmtcase(x, y) case (y): (x) = (y); statfmt++; break 488 #define fmtcasef(x, y, z) case (y): (x) = (z); statfmt++; break 489 switch (*statfmt) { 490 fmtcasef(ofmt, FMT_DECIMAL, FMTF_DECIMAL); 491 fmtcasef(ofmt, FMT_OCTAL, FMTF_OCTAL); 492 fmtcasef(ofmt, FMT_UNSIGNED, FMTF_UNSIGNED); 493 fmtcasef(ofmt, FMT_HEX, FMTF_HEX); 494 fmtcasef(ofmt, FMT_FLOAT, FMTF_FLOAT); 495 fmtcasef(ofmt, FMT_STRING, FMTF_STRING); 496 default: 497 ofmt = 0; 498 break; 499 } 500 501 switch (*statfmt) { 502 fmtcase(hilo, HIGH_PIECE); 503 fmtcase(hilo, MIDDLE_PIECE); 504 fmtcase(hilo, LOW_PIECE); 505 default: 506 hilo = 0; 507 break; 508 } 509 510 switch (*statfmt) { 511 fmtcase(what, SHOW_st_dev); 512 fmtcase(what, SHOW_st_ino); 513 fmtcase(what, SHOW_st_mode); 514 fmtcase(what, SHOW_st_nlink); 515 fmtcase(what, SHOW_st_uid); 516 fmtcase(what, SHOW_st_gid); 517 fmtcase(what, SHOW_st_rdev); 518 fmtcase(what, SHOW_st_atime); 519 fmtcase(what, SHOW_st_mtime); 520 fmtcase(what, SHOW_st_ctime); 521 fmtcase(what, SHOW_st_btime); 522 fmtcase(what, SHOW_st_size); 523 fmtcase(what, SHOW_st_blocks); 524 fmtcase(what, SHOW_st_blksize); 525 fmtcase(what, SHOW_st_flags); 526 fmtcase(what, SHOW_st_gen); 527 fmtcase(what, SHOW_symlink); 528 fmtcase(what, SHOW_filetype); 529 fmtcase(what, SHOW_filename); 530 fmtcase(what, SHOW_sizerdev); 531 default: 532 goto badfmt; 533 } 534 #undef fmtcasef 535 #undef fmtcase 536 537 t = format1(st, 538 file, 539 subfmt, statfmt - subfmt, 540 buf, sizeof(buf), 541 flags, size, prec, ofmt, hilo, what); 542 543 for (i = 0; i < t && i < sizeof(buf); i++) 544 addchar(stdout, buf[i], &nl); 545 546 continue; 547 548 badfmt: 549 errx(1, "%.*s: bad format", 550 (int)(statfmt - subfmt + 1), subfmt); 551 } 552 553 if (!nl && !nonl) 554 (void)fputc('\n', stdout); 555 (void)fflush(stdout); 556 } 557 558 /* 559 * Arranges output according to a single parsed format substring. 560 */ 561 int 562 format1(const struct stat *st, 563 const char *file, 564 const char *fmt, int flen, 565 char *buf, size_t blen, 566 int flags, int size, int prec, int ofmt, 567 int hilo, int what) 568 { 569 u_int64_t data; 570 char *sdata, lfmt[24], tmp[20]; 571 char smode[12], sid[12], path[PATH_MAX + 4]; 572 struct passwd *pw; 573 struct group *gr; 574 const struct timespec *tsp; 575 struct timespec ts; 576 struct tm *tm; 577 int l, small, formats; 578 579 tsp = NULL; 580 formats = 0; 581 small = 0; 582 583 /* 584 * First, pick out the data and tweak it based on hilo or 585 * specified output format (symlink output only). 586 */ 587 switch (what) { 588 case SHOW_st_dev: 589 case SHOW_st_rdev: 590 small = (sizeof(st->st_dev) == 4); 591 data = (what == SHOW_st_dev) ? st->st_dev : st->st_rdev; 592 #if HAVE_DEVNAME 593 sdata = (what == SHOW_st_dev) ? 594 devname(st->st_dev, S_IFBLK) : 595 devname(st->st_rdev, 596 S_ISCHR(st->st_mode) ? S_IFCHR : 597 S_ISBLK(st->st_mode) ? S_IFBLK : 598 0U); 599 if (sdata == NULL) 600 sdata = "???"; 601 #endif /* HAVE_DEVNAME */ 602 if (hilo == HIGH_PIECE) { 603 data = major(data); 604 hilo = 0; 605 } 606 else if (hilo == LOW_PIECE) { 607 data = minor((unsigned)data); 608 hilo = 0; 609 } 610 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 611 #if HAVE_DEVNAME 612 FMTF_STRING; 613 #else /* HAVE_DEVNAME */ 614 0; 615 #endif /* HAVE_DEVNAME */ 616 if (ofmt == 0) 617 ofmt = FMTF_UNSIGNED; 618 break; 619 case SHOW_st_ino: 620 small = (sizeof(st->st_ino) == 4); 621 data = st->st_ino; 622 sdata = NULL; 623 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 624 if (ofmt == 0) 625 ofmt = FMTF_UNSIGNED; 626 break; 627 case SHOW_st_mode: 628 small = (sizeof(st->st_mode) == 4); 629 data = st->st_mode; 630 strmode(st->st_mode, smode); 631 sdata = smode; 632 l = strlen(sdata); 633 if (sdata[l - 1] == ' ') 634 sdata[--l] = '\0'; 635 if (hilo == HIGH_PIECE) { 636 data >>= 12; 637 sdata += 1; 638 sdata[3] = '\0'; 639 hilo = 0; 640 } 641 else if (hilo == MIDDLE_PIECE) { 642 data = (data >> 9) & 07; 643 sdata += 4; 644 sdata[3] = '\0'; 645 hilo = 0; 646 } 647 else if (hilo == LOW_PIECE) { 648 data &= 0777; 649 sdata += 7; 650 sdata[3] = '\0'; 651 hilo = 0; 652 } 653 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 654 FMTF_STRING; 655 if (ofmt == 0) 656 ofmt = FMTF_OCTAL; 657 break; 658 case SHOW_st_nlink: 659 small = (sizeof(st->st_dev) == 4); 660 data = st->st_nlink; 661 sdata = NULL; 662 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 663 if (ofmt == 0) 664 ofmt = FMTF_UNSIGNED; 665 break; 666 case SHOW_st_uid: 667 small = (sizeof(st->st_uid) == 4); 668 data = st->st_uid; 669 if ((pw = getpwuid(st->st_uid)) != NULL) 670 sdata = pw->pw_name; 671 else { 672 snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_uid); 673 sdata = sid; 674 } 675 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 676 FMTF_STRING; 677 if (ofmt == 0) 678 ofmt = FMTF_UNSIGNED; 679 break; 680 case SHOW_st_gid: 681 small = (sizeof(st->st_gid) == 4); 682 data = st->st_gid; 683 if ((gr = getgrgid(st->st_gid)) != NULL) 684 sdata = gr->gr_name; 685 else { 686 snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_gid); 687 sdata = sid; 688 } 689 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 690 FMTF_STRING; 691 if (ofmt == 0) 692 ofmt = FMTF_UNSIGNED; 693 break; 694 case SHOW_st_atime: 695 tsp = &st->st_atimespec; 696 /* FALLTHROUGH */ 697 case SHOW_st_mtime: 698 if (tsp == NULL) 699 tsp = &st->st_mtimespec; 700 /* FALLTHROUGH */ 701 case SHOW_st_ctime: 702 if (tsp == NULL) 703 tsp = &st->st_ctimespec; 704 /* FALLTHROUGH */ 705 #if HAVE_STRUCT_STAT_ST_BIRTHTIME 706 case SHOW_st_btime: 707 if (tsp == NULL) 708 tsp = &st->st_birthtimespec; 709 #endif /* HAVE_STRUCT_STAT_ST_BIRTHTIME */ 710 ts = *tsp; /* copy so we can muck with it */ 711 small = (sizeof(ts.tv_sec) == 4); 712 data = ts.tv_sec; 713 small = 1; 714 tm = localtime(&ts.tv_sec); 715 (void)strftime(path, sizeof(path), timefmt, tm); 716 sdata = path; 717 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 718 FMTF_FLOAT | FMTF_STRING; 719 if (ofmt == 0) 720 ofmt = FMTF_DECIMAL; 721 break; 722 case SHOW_st_size: 723 small = (sizeof(st->st_size) == 4); 724 data = st->st_size; 725 sdata = NULL; 726 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 727 if (ofmt == 0) 728 ofmt = FMTF_UNSIGNED; 729 break; 730 case SHOW_st_blocks: 731 small = (sizeof(st->st_blocks) == 4); 732 data = st->st_blocks; 733 sdata = NULL; 734 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 735 if (ofmt == 0) 736 ofmt = FMTF_UNSIGNED; 737 break; 738 case SHOW_st_blksize: 739 small = (sizeof(st->st_blksize) == 4); 740 data = st->st_blksize; 741 sdata = NULL; 742 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 743 if (ofmt == 0) 744 ofmt = FMTF_UNSIGNED; 745 break; 746 #if HAVE_STRUCT_STAT_ST_FLAGS 747 case SHOW_st_flags: 748 small = (sizeof(st->st_flags) == 4); 749 data = st->st_flags; 750 sdata = xfflagstostr(st->st_flags); 751 if (*sdata == '\0') 752 sdata = "-"; 753 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 754 FMTF_STRING; 755 if (ofmt == 0) 756 ofmt = FMTF_UNSIGNED; 757 break; 758 #endif /* HAVE_STRUCT_STAT_ST_FLAGS */ 759 #if HAVE_STRUCT_STAT_ST_GEN 760 case SHOW_st_gen: 761 small = (sizeof(st->st_gen) == 4); 762 data = st->st_gen; 763 sdata = NULL; 764 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 765 if (ofmt == 0) 766 ofmt = FMTF_UNSIGNED; 767 break; 768 #endif /* HAVE_STRUCT_STAT_ST_GEN */ 769 case SHOW_symlink: 770 small = 0; 771 data = 0; 772 if (S_ISLNK(st->st_mode)) { 773 snprintf(path, sizeof(path), " -> "); 774 l = readlink(file, path + 4, sizeof(path) - 4 - 1); 775 if (l == -1) { 776 linkfail = 1; 777 l = 0; 778 path[0] = '\0'; 779 } 780 path[l + 4] = '\0'; 781 sdata = path + (ofmt == FMTF_STRING ? 0 : 4); 782 } 783 else { 784 linkfail = 1; 785 sdata = ""; 786 } 787 formats = FMTF_STRING; 788 if (ofmt == 0) 789 ofmt = FMTF_STRING; 790 break; 791 case SHOW_filetype: 792 small = 0; 793 data = 0; 794 sdata = smode; 795 sdata[0] = '\0'; 796 if (hilo == 0 || hilo == LOW_PIECE) { 797 switch (st->st_mode & S_IFMT) { 798 case S_IFIFO: (void)strcat(sdata, "|"); break; 799 case S_IFDIR: (void)strcat(sdata, "/"); break; 800 case S_IFREG: 801 if (st->st_mode & 802 (S_IXUSR | S_IXGRP | S_IXOTH)) 803 (void)strcat(sdata, "*"); 804 break; 805 case S_IFLNK: (void)strcat(sdata, "@"); break; 806 case S_IFSOCK: (void)strcat(sdata, "="); break; 807 #ifdef S_IFWHT 808 case S_IFWHT: (void)strcat(sdata, "%"); break; 809 #endif /* S_IFWHT */ 810 #ifdef S_IFDOOR 811 case S_IFDOOR: (void)strcat(sdata, ">"); break; 812 #endif /* S_IFDOOR */ 813 } 814 hilo = 0; 815 } 816 else if (hilo == HIGH_PIECE) { 817 switch (st->st_mode & S_IFMT) { 818 case S_IFIFO: sdata = "Fifo File"; break; 819 case S_IFCHR: sdata = "Character Device"; break; 820 case S_IFDIR: sdata = "Directory"; break; 821 case S_IFBLK: sdata = "Block Device"; break; 822 case S_IFREG: sdata = "Regular File"; break; 823 case S_IFLNK: sdata = "Symbolic Link"; break; 824 case S_IFSOCK: sdata = "Socket"; break; 825 #ifdef S_IFWHT 826 case S_IFWHT: sdata = "Whiteout File"; break; 827 #endif /* S_IFWHT */ 828 #ifdef S_IFDOOR 829 case S_IFDOOR: sdata = "Door"; break; 830 #endif /* S_IFDOOR */ 831 default: sdata = "???"; break; 832 } 833 hilo = 0; 834 } 835 formats = FMTF_STRING; 836 if (ofmt == 0) 837 ofmt = FMTF_STRING; 838 break; 839 case SHOW_filename: 840 small = 0; 841 data = 0; 842 (void)strncpy(path, file, sizeof(path)); 843 sdata = path; 844 formats = FMTF_STRING; 845 if (ofmt == 0) 846 ofmt = FMTF_STRING; 847 break; 848 case SHOW_sizerdev: 849 if (S_ISCHR(st->st_mode) || S_ISBLK(st->st_mode)) { 850 char majdev[20], mindev[20]; 851 int l1, l2; 852 853 l1 = format1(st, 854 file, 855 fmt, flen, 856 majdev, sizeof(majdev), 857 flags, size, prec, 858 ofmt, HIGH_PIECE, SHOW_st_rdev); 859 l2 = format1(st, 860 file, 861 fmt, flen, 862 mindev, sizeof(mindev), 863 flags, size, prec, 864 ofmt, LOW_PIECE, SHOW_st_rdev); 865 return (snprintf(buf, blen, "%.*s,%.*s", 866 l1, majdev, l2, mindev)); 867 } 868 else { 869 return (format1(st, 870 file, 871 fmt, flen, 872 buf, blen, 873 flags, size, prec, 874 ofmt, 0, SHOW_st_size)); 875 } 876 /*NOTREACHED*/ 877 default: 878 errx(1, "%.*s: bad format", (int)flen, fmt); 879 } 880 881 /* 882 * If a subdatum was specified but not supported, or an output 883 * format was selected that is not supported, that's an error. 884 */ 885 if (hilo != 0 || (ofmt & formats) == 0) 886 errx(1, "%.*s: bad format", (int)flen, fmt); 887 888 /* 889 * Assemble the format string for passing to printf(3). 890 */ 891 lfmt[0] = '\0'; 892 (void)strcat(lfmt, "%"); 893 if (flags & FLAG_POUND) 894 (void)strcat(lfmt, "#"); 895 if (flags & FLAG_SPACE) 896 (void)strcat(lfmt, " "); 897 if (flags & FLAG_PLUS) 898 (void)strcat(lfmt, "+"); 899 if (flags & FLAG_MINUS) 900 (void)strcat(lfmt, "-"); 901 if (flags & FLAG_ZERO) 902 (void)strcat(lfmt, "0"); 903 904 /* 905 * Only the timespecs support the FLOAT output format, and that 906 * requires work that differs from the other formats. 907 */ 908 if (ofmt == FMTF_FLOAT) { 909 /* 910 * Nothing after the decimal point, so just print seconds. 911 */ 912 if (prec == 0) { 913 if (size != -1) { 914 (void)snprintf(tmp, sizeof(tmp), "%d", size); 915 (void)strcat(lfmt, tmp); 916 } 917 (void)strcat(lfmt, "d"); 918 return (snprintf(buf, blen, lfmt, ts.tv_sec)); 919 } 920 921 /* 922 * Unspecified precision gets all the precision we have: 923 * 9 digits. 924 */ 925 if (prec == -1) 926 prec = 9; 927 928 /* 929 * Adjust the size for the decimal point and the digits 930 * that will follow. 931 */ 932 size -= prec + 1; 933 934 /* 935 * Any leftover size that's legitimate will be used. 936 */ 937 if (size > 0) { 938 (void)snprintf(tmp, sizeof(tmp), "%d", size); 939 (void)strcat(lfmt, tmp); 940 } 941 (void)strcat(lfmt, "d"); 942 943 /* 944 * The stuff after the decimal point always needs zero 945 * filling. 946 */ 947 (void)strcat(lfmt, ".%0"); 948 949 /* 950 * We can "print" at most nine digits of precision. The 951 * rest we will pad on at the end. 952 */ 953 (void)snprintf(tmp, sizeof(tmp), "%dd", prec > 9 ? 9 : prec); 954 (void)strcat(lfmt, tmp); 955 956 /* 957 * For precision of less that nine digits, trim off the 958 * less significant figures. 959 */ 960 for (; prec < 9; prec++) 961 ts.tv_nsec /= 10; 962 963 /* 964 * Use the format, and then tack on any zeroes that 965 * might be required to make up the requested precision. 966 */ 967 l = snprintf(buf, blen, lfmt, ts.tv_sec, ts.tv_nsec); 968 for (; prec > 9 && l < blen; prec--, l++) 969 (void)strcat(buf, "0"); 970 return (l); 971 } 972 973 /* 974 * Add on size and precision, if specified, to the format. 975 */ 976 if (size != -1) { 977 (void)snprintf(tmp, sizeof(tmp), "%d", size); 978 (void)strcat(lfmt, tmp); 979 } 980 if (prec != -1) { 981 (void)snprintf(tmp, sizeof(tmp), ".%d", prec); 982 (void)strcat(lfmt, tmp); 983 } 984 985 /* 986 * String output uses the temporary sdata. 987 */ 988 if (ofmt == FMTF_STRING) { 989 if (sdata == NULL) 990 errx(1, "%.*s: bad format", (int)flen, fmt); 991 (void)strcat(lfmt, "s"); 992 return (snprintf(buf, blen, lfmt, sdata)); 993 } 994 995 /* 996 * Ensure that sign extension does not cause bad looking output 997 * for some forms. 998 */ 999 if (small && ofmt != FMTF_DECIMAL) 1000 data = (u_int32_t)data; 1001 1002 /* 1003 * The four "numeric" output forms. 1004 */ 1005 (void)strcat(lfmt, "ll"); 1006 switch (ofmt) { 1007 case FMTF_DECIMAL: (void)strcat(lfmt, "d"); break; 1008 case FMTF_OCTAL: (void)strcat(lfmt, "o"); break; 1009 case FMTF_UNSIGNED: (void)strcat(lfmt, "u"); break; 1010 case FMTF_HEX: (void)strcat(lfmt, "x"); break; 1011 } 1012 1013 return (snprintf(buf, blen, lfmt, data)); 1014 } 1015