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 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the NetBSD 19 * Foundation, Inc. and its contributors. 20 * 4. Neither the name of The NetBSD Foundation nor the names of its 21 * contributors may be used to endorse or promote products derived 22 * from this software without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 25 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 26 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 27 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 28 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 34 * POSSIBILITY OF SUCH DAMAGE. 35 * 36 * $NetBSD: stat.c,v 1.13 2003/07/25 03:21:17 atatat Exp $ 37 * $FreeBSD: src/usr.bin/stat/stat.c,v 1.6 2003/10/06 01:55:17 dougb Exp $ 38 * $DragonFly: src/usr.bin/stat/stat.c,v 1.6 2005/06/29 00:24:49 corecode Exp $ 39 */ 40 41 #include <sys/cdefs.h> 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 0 48 #define HAVE_STRUCT_STAT_ST_MTIMENSEC 1 49 #define HAVE_DEVNAME 1 50 #endif /* HAVE_CONFIG_H */ 51 52 #include <sys/types.h> 53 #include <sys/stat.h> 54 55 #include <ctype.h> 56 #include <err.h> 57 #include <grp.h> 58 #include <limits.h> 59 #include <pwd.h> 60 #include <stdio.h> 61 #include <stdlib.h> 62 #include <string.h> 63 #include <time.h> 64 #include <unistd.h> 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: (%04OLp/%.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_st_dev 'd' 157 #define SHOW_st_ino 'i' 158 #define SHOW_st_mode 'p' 159 #define SHOW_st_nlink 'l' 160 #define SHOW_st_uid 'u' 161 #define SHOW_st_gid 'g' 162 #define SHOW_st_rdev 'r' 163 #define SHOW_st_atime 'a' 164 #define SHOW_st_mtime 'm' 165 #define SHOW_st_ctime 'c' 166 #define SHOW_st_btime 'B' 167 #define SHOW_st_size 'z' 168 #define SHOW_st_blocks 'b' 169 #define SHOW_st_blksize 'k' 170 #define SHOW_st_flags 'f' 171 #define SHOW_st_gen 'v' 172 #define SHOW_symlink 'Y' 173 #define SHOW_filetype 'T' 174 #define SHOW_filename 'N' 175 #define SHOW_sizerdev 'Z' 176 177 void usage(const char *); 178 void output(const struct stat *, const char *, 179 const char *, int, int, int); 180 int format1(const struct stat *, /* stat info */ 181 const char *, /* the file name */ 182 const char *, int, /* the format string itself */ 183 char *, size_t, /* a place to put the output */ 184 int, int, int, int, /* the parsed format */ 185 int, int); 186 187 char *timefmt; 188 int linkfail; 189 190 #define addchar(s, c, nl) \ 191 do { \ 192 (void)fputc((c), (s)); \ 193 (*nl) = ((c) == '\n'); \ 194 } while (0/*CONSTCOND*/) 195 196 int 197 main(int argc, char *argv[]) 198 { 199 struct stat st; 200 int ch, rc, errs, am_readlink; 201 int lsF, fmtchar, usestat, fn, nonl, quiet; 202 char *statfmt, *options, *synopsis; 203 204 am_readlink = 0; 205 lsF = 0; 206 fmtchar = '\0'; 207 usestat = 0; 208 nonl = 0; 209 quiet = 0; 210 linkfail = 0; 211 statfmt = NULL; 212 timefmt = NULL; 213 214 if (strcmp(getprogname(), "readlink") == 0) { 215 am_readlink = 1; 216 options = "n"; 217 synopsis = "[-n] [file ...]"; 218 statfmt = "%Y"; 219 fmtchar = 'f'; 220 quiet = 1; 221 } else { 222 options = "f:FlLnqrst:x"; 223 synopsis = "[-FlLnqrsx] [-f format] [-t timefmt] [file ...]"; 224 } 225 226 while ((ch = getopt(argc, argv, options)) != -1) 227 switch (ch) { 228 case 'F': 229 lsF = 1; 230 break; 231 case 'L': 232 usestat = 1; 233 break; 234 case 'n': 235 nonl = 1; 236 break; 237 case 'q': 238 quiet = 1; 239 break; 240 case 'f': 241 statfmt = optarg; 242 /* FALLTHROUGH */ 243 case 'l': 244 case 'r': 245 case 's': 246 case 'x': 247 if (fmtchar != 0) 248 errx(1, "can't use format '%c' with '%c'", 249 fmtchar, ch); 250 fmtchar = ch; 251 break; 252 case 't': 253 timefmt = optarg; 254 break; 255 default: 256 usage(synopsis); 257 } 258 259 argc -= optind; 260 argv += optind; 261 fn = 1; 262 263 if (fmtchar == '\0') { 264 if (lsF) 265 fmtchar = 'l'; 266 else { 267 fmtchar = 'f'; 268 statfmt = DEF_FORMAT; 269 } 270 } 271 272 if (lsF && fmtchar != 'l') 273 errx(1, "can't use format '%c' with -F", fmtchar); 274 275 switch (fmtchar) { 276 case 'f': 277 /* statfmt already set */ 278 break; 279 case 'l': 280 statfmt = lsF ? LSF_FORMAT : LS_FORMAT; 281 break; 282 case 'r': 283 statfmt = RAW_FORMAT; 284 break; 285 case 's': 286 statfmt = SHELL_FORMAT; 287 break; 288 case 'x': 289 statfmt = LINUX_FORMAT; 290 if (timefmt == NULL) 291 timefmt = "%c"; 292 break; 293 default: 294 usage(synopsis); 295 /*NOTREACHED*/ 296 } 297 298 if (timefmt == NULL) 299 timefmt = TIME_FORMAT; 300 301 errs = 0; 302 do { 303 if (argc == 0) 304 rc = fstat(STDIN_FILENO, &st); 305 else if (usestat) 306 rc = stat(argv[0], &st); 307 else 308 rc = lstat(argv[0], &st); 309 310 if (rc == -1) { 311 errs = 1; 312 linkfail = 1; 313 if (!quiet) 314 warn("%s: stat", 315 argc == 0 ? "(stdin)" : argv[0]); 316 } 317 else 318 output(&st, argv[0], statfmt, fn, nonl, quiet); 319 320 argv++; 321 argc--; 322 fn++; 323 } while (argc > 0); 324 325 return (am_readlink ? linkfail : errs); 326 } 327 328 void 329 usage(const char *synopsis) 330 { 331 332 (void)fprintf(stderr, "usage: %s %s\n", getprogname(), synopsis); 333 exit(1); 334 } 335 336 /* 337 * Parses a format string. 338 */ 339 void 340 output(const struct stat *st, const char *file, 341 const char *statfmt, int fn, int nonl, int quiet) 342 { 343 int flags, size, prec, ofmt, hilo, what; 344 char buf[PATH_MAX]; 345 const char *subfmt; 346 int nl, t, i; 347 348 nl = 1; 349 while (*statfmt != '\0') { 350 351 /* 352 * Non-format characters go straight out. 353 */ 354 if (*statfmt != FMT_MAGIC) { 355 addchar(stdout, *statfmt, &nl); 356 statfmt++; 357 continue; 358 } 359 360 /* 361 * The current format "substring" starts here, 362 * and then we skip the magic. 363 */ 364 subfmt = statfmt; 365 statfmt++; 366 367 /* 368 * Some simple one-character "formats". 369 */ 370 switch (*statfmt) { 371 case SIMPLE_NEWLINE: 372 addchar(stdout, '\n', &nl); 373 statfmt++; 374 continue; 375 case SIMPLE_TAB: 376 addchar(stdout, '\t', &nl); 377 statfmt++; 378 continue; 379 case SIMPLE_PERCENT: 380 addchar(stdout, '%', &nl); 381 statfmt++; 382 continue; 383 case SIMPLE_NUMBER: { 384 char num[12], *p; 385 386 snprintf(num, sizeof(num), "%d", fn); 387 for (p = &num[0]; *p; p++) 388 addchar(stdout, *p, &nl); 389 statfmt++; 390 continue; 391 } 392 } 393 394 /* 395 * This must be an actual format string. Format strings are 396 * similar to printf(3) formats up to a point, and are of 397 * the form: 398 * 399 * % required start of format 400 * [-# +0] opt. format characters 401 * size opt. field width 402 * . opt. decimal separator, followed by 403 * prec opt. precision 404 * fmt opt. output specifier (string, numeric, etc.) 405 * sub opt. sub field specifier (high, middle, low) 406 * datum required field specifier (size, mode, etc) 407 * 408 * Only the % and the datum selector are required. All data 409 * have reasonable default output forms. The "sub" specifier 410 * only applies to certain data (mode, dev, rdev, filetype). 411 * The symlink output defaults to STRING, yet will only emit 412 * the leading " -> " if STRING is explicitly specified. The 413 * sizerdev datum will generate rdev output for character or 414 * block devices, and size output for all others. 415 */ 416 flags = 0; 417 do { 418 if (*statfmt == FMT_POUND) 419 flags |= FLAG_POUND; 420 else if (*statfmt == FMT_SPACE) 421 flags |= FLAG_SPACE; 422 else if (*statfmt == FMT_PLUS) 423 flags |= FLAG_PLUS; 424 else if (*statfmt == FMT_ZERO) 425 flags |= FLAG_ZERO; 426 else if (*statfmt == FMT_MINUS) 427 flags |= FLAG_MINUS; 428 else 429 break; 430 statfmt++; 431 } while (1/*CONSTCOND*/); 432 433 size = -1; 434 if (isdigit((unsigned)*statfmt)) { 435 size = 0; 436 while (isdigit((unsigned)*statfmt)) { 437 size = (size * 10) + (*statfmt - '0'); 438 statfmt++; 439 if (size < 0) 440 goto badfmt; 441 } 442 } 443 444 prec = -1; 445 if (*statfmt == FMT_DOT) { 446 statfmt++; 447 448 prec = 0; 449 while (isdigit((unsigned)*statfmt)) { 450 prec = (prec * 10) + (*statfmt - '0'); 451 statfmt++; 452 if (prec < 0) 453 goto badfmt; 454 } 455 } 456 457 #define fmtcase(x, y) case (y): (x) = (y); statfmt++; break 458 #define fmtcasef(x, y, z) case (y): (x) = (z); statfmt++; break 459 switch (*statfmt) { 460 fmtcasef(ofmt, FMT_DECIMAL, FMTF_DECIMAL); 461 fmtcasef(ofmt, FMT_OCTAL, FMTF_OCTAL); 462 fmtcasef(ofmt, FMT_UNSIGNED, FMTF_UNSIGNED); 463 fmtcasef(ofmt, FMT_HEX, FMTF_HEX); 464 fmtcasef(ofmt, FMT_FLOAT, FMTF_FLOAT); 465 fmtcasef(ofmt, FMT_STRING, FMTF_STRING); 466 default: 467 ofmt = 0; 468 break; 469 } 470 471 switch (*statfmt) { 472 fmtcase(hilo, HIGH_PIECE); 473 fmtcase(hilo, MIDDLE_PIECE); 474 fmtcase(hilo, LOW_PIECE); 475 default: 476 hilo = 0; 477 break; 478 } 479 480 switch (*statfmt) { 481 fmtcase(what, SHOW_st_dev); 482 fmtcase(what, SHOW_st_ino); 483 fmtcase(what, SHOW_st_mode); 484 fmtcase(what, SHOW_st_nlink); 485 fmtcase(what, SHOW_st_uid); 486 fmtcase(what, SHOW_st_gid); 487 fmtcase(what, SHOW_st_rdev); 488 fmtcase(what, SHOW_st_atime); 489 fmtcase(what, SHOW_st_mtime); 490 fmtcase(what, SHOW_st_ctime); 491 fmtcase(what, SHOW_st_btime); 492 fmtcase(what, SHOW_st_size); 493 fmtcase(what, SHOW_st_blocks); 494 fmtcase(what, SHOW_st_blksize); 495 fmtcase(what, SHOW_st_flags); 496 fmtcase(what, SHOW_st_gen); 497 fmtcase(what, SHOW_symlink); 498 fmtcase(what, SHOW_filetype); 499 fmtcase(what, SHOW_filename); 500 fmtcase(what, SHOW_sizerdev); 501 default: 502 goto badfmt; 503 } 504 #undef fmtcasef 505 #undef fmtcase 506 507 t = format1(st, 508 file, 509 subfmt, statfmt - subfmt, 510 buf, sizeof(buf), 511 flags, size, prec, ofmt, hilo, what); 512 513 for (i = 0; i < t && i < sizeof(buf); i++) 514 addchar(stdout, buf[i], &nl); 515 516 continue; 517 518 badfmt: 519 errx(1, "%.*s: bad format", 520 (int)(statfmt - subfmt + 1), subfmt); 521 } 522 523 if (!nl && !nonl) 524 (void)fputc('\n', stdout); 525 (void)fflush(stdout); 526 } 527 528 /* 529 * Arranges output according to a single parsed format substring. 530 */ 531 int 532 format1(const struct stat *st, 533 const char *file, 534 const char *fmt, int flen, 535 char *buf, size_t blen, 536 int flags, int size, int prec, int ofmt, 537 int hilo, int what) 538 { 539 u_int64_t data; 540 char *sdata, lfmt[24], tmp[20]; 541 char smode[12], sid[12], path[PATH_MAX + 4]; 542 struct passwd *pw; 543 struct group *gr; 544 const struct timespec *tsp; 545 struct timespec ts; 546 struct tm *tm; 547 int l, small, formats; 548 549 tsp = NULL; 550 formats = 0; 551 small = 0; 552 553 /* 554 * First, pick out the data and tweak it based on hilo or 555 * specified output format (symlink output only). 556 */ 557 switch (what) { 558 case SHOW_st_dev: 559 case SHOW_st_rdev: 560 small = (sizeof(st->st_dev) == 4); 561 data = (what == SHOW_st_dev) ? st->st_dev : st->st_rdev; 562 #if HAVE_DEVNAME 563 sdata = (what == SHOW_st_dev) ? 564 devname(st->st_dev, S_IFBLK) : 565 devname(st->st_rdev, 566 S_ISCHR(st->st_mode) ? S_IFCHR : 567 S_ISBLK(st->st_mode) ? S_IFBLK : 568 0U); 569 if (sdata == NULL) 570 sdata = "???"; 571 #endif /* HAVE_DEVNAME */ 572 if (hilo == HIGH_PIECE) { 573 data = major(data); 574 hilo = 0; 575 } 576 else if (hilo == LOW_PIECE) { 577 data = minor((unsigned)data); 578 hilo = 0; 579 } 580 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 581 #if HAVE_DEVNAME 582 FMTF_STRING; 583 #else /* HAVE_DEVNAME */ 584 0; 585 #endif /* HAVE_DEVNAME */ 586 if (ofmt == 0) 587 ofmt = FMTF_UNSIGNED; 588 break; 589 case SHOW_st_ino: 590 small = (sizeof(st->st_ino) == 4); 591 data = st->st_ino; 592 sdata = NULL; 593 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 594 if (ofmt == 0) 595 ofmt = FMTF_UNSIGNED; 596 break; 597 case SHOW_st_mode: 598 small = (sizeof(st->st_mode) == 4); 599 data = st->st_mode; 600 strmode(st->st_mode, smode); 601 sdata = smode; 602 l = strlen(sdata); 603 if (sdata[l - 1] == ' ') 604 sdata[--l] = '\0'; 605 if (hilo == HIGH_PIECE) { 606 data >>= 12; 607 sdata += 1; 608 sdata[3] = '\0'; 609 hilo = 0; 610 } 611 else if (hilo == MIDDLE_PIECE) { 612 data = (data >> 9) & 07; 613 sdata += 4; 614 sdata[3] = '\0'; 615 hilo = 0; 616 } 617 else if (hilo == LOW_PIECE) { 618 data &= 0777; 619 sdata += 7; 620 sdata[3] = '\0'; 621 hilo = 0; 622 } 623 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 624 FMTF_STRING; 625 if (ofmt == 0) 626 ofmt = FMTF_OCTAL; 627 break; 628 case SHOW_st_nlink: 629 small = (sizeof(st->st_dev) == 4); 630 data = st->st_nlink; 631 sdata = NULL; 632 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 633 if (ofmt == 0) 634 ofmt = FMTF_UNSIGNED; 635 break; 636 case SHOW_st_uid: 637 small = (sizeof(st->st_uid) == 4); 638 data = st->st_uid; 639 if ((pw = getpwuid(st->st_uid)) != NULL) 640 sdata = pw->pw_name; 641 else { 642 snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_uid); 643 sdata = sid; 644 } 645 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 646 FMTF_STRING; 647 if (ofmt == 0) 648 ofmt = FMTF_UNSIGNED; 649 break; 650 case SHOW_st_gid: 651 small = (sizeof(st->st_gid) == 4); 652 data = st->st_gid; 653 if ((gr = getgrgid(st->st_gid)) != NULL) 654 sdata = gr->gr_name; 655 else { 656 snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_gid); 657 sdata = sid; 658 } 659 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 660 FMTF_STRING; 661 if (ofmt == 0) 662 ofmt = FMTF_UNSIGNED; 663 break; 664 case SHOW_st_atime: 665 tsp = &st->st_atimespec; 666 /* FALLTHROUGH */ 667 case SHOW_st_mtime: 668 if (tsp == NULL) 669 tsp = &st->st_mtimespec; 670 /* FALLTHROUGH */ 671 case SHOW_st_ctime: 672 if (tsp == NULL) 673 tsp = &st->st_ctimespec; 674 /* FALLTHROUGH */ 675 #if HAVE_STRUCT_STAT_ST_BIRTHTIME 676 case SHOW_st_btime: 677 if (tsp == NULL) 678 tsp = &st->st_birthtimespec; 679 #endif /* HAVE_STRUCT_STAT_ST_BIRTHTIME */ 680 ts = *tsp; /* copy so we can muck with it */ 681 small = (sizeof(ts.tv_sec) == 4); 682 data = ts.tv_sec; 683 small = 1; 684 tm = localtime(&ts.tv_sec); 685 strftime(path, sizeof(path), timefmt, tm); 686 sdata = path; 687 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 688 FMTF_FLOAT | FMTF_STRING; 689 if (ofmt == 0) 690 ofmt = FMTF_DECIMAL; 691 break; 692 case SHOW_st_size: 693 small = (sizeof(st->st_size) == 4); 694 data = st->st_size; 695 sdata = NULL; 696 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 697 if (ofmt == 0) 698 ofmt = FMTF_UNSIGNED; 699 break; 700 case SHOW_st_blocks: 701 small = (sizeof(st->st_blocks) == 4); 702 data = st->st_blocks; 703 sdata = NULL; 704 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 705 if (ofmt == 0) 706 ofmt = FMTF_UNSIGNED; 707 break; 708 case SHOW_st_blksize: 709 small = (sizeof(st->st_blksize) == 4); 710 data = st->st_blksize; 711 sdata = NULL; 712 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 713 if (ofmt == 0) 714 ofmt = FMTF_UNSIGNED; 715 break; 716 #if HAVE_STRUCT_STAT_ST_FLAGS 717 case SHOW_st_flags: 718 small = (sizeof(st->st_flags) == 4); 719 data = st->st_flags; 720 sdata = NULL; 721 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 722 if (ofmt == 0) 723 ofmt = FMTF_UNSIGNED; 724 break; 725 #endif /* HAVE_STRUCT_STAT_ST_FLAGS */ 726 #if HAVE_STRUCT_STAT_ST_GEN 727 case SHOW_st_gen: 728 small = (sizeof(st->st_gen) == 4); 729 data = st->st_gen; 730 sdata = NULL; 731 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 732 if (ofmt == 0) 733 ofmt = FMTF_UNSIGNED; 734 break; 735 #endif /* HAVE_STRUCT_STAT_ST_GEN */ 736 case SHOW_symlink: 737 small = 0; 738 data = 0; 739 if (S_ISLNK(st->st_mode)) { 740 snprintf(path, sizeof(path), " -> "); 741 l = readlink(file, path + 4, sizeof(path) - 4 - 1); 742 if (l == -1) { 743 linkfail = 1; 744 l = 0; 745 path[0] = '\0'; 746 } 747 path[l + 4] = '\0'; 748 sdata = path + (ofmt == FMTF_STRING ? 0 : 4); 749 } 750 else { 751 linkfail = 1; 752 sdata = ""; 753 } 754 formats = FMTF_STRING; 755 if (ofmt == 0) 756 ofmt = FMTF_STRING; 757 break; 758 case SHOW_filetype: 759 small = 0; 760 data = 0; 761 sdata = smode; 762 sdata[0] = '\0'; 763 if (hilo == 0 || hilo == LOW_PIECE) { 764 switch (st->st_mode & S_IFMT) { 765 case S_IFIFO: (void)strcat(sdata, "|"); break; 766 case S_IFDIR: (void)strcat(sdata, "/"); break; 767 case S_IFREG: 768 if (st->st_mode & 769 (S_IXUSR | S_IXGRP | S_IXOTH)) 770 (void)strcat(sdata, "*"); 771 break; 772 case S_IFLNK: (void)strcat(sdata, "@"); break; 773 case S_IFSOCK: (void)strcat(sdata, "="); break; 774 #ifdef S_IFWHT 775 case S_IFWHT: (void)strcat(sdata, "%"); break; 776 #endif /* S_IFWHT */ 777 #ifdef S_IFDOOR 778 case S_IFDOOR: (void)strcat(sdata, ">"); break; 779 #endif /* S_IFDOOR */ 780 } 781 hilo = 0; 782 } 783 else if (hilo == HIGH_PIECE) { 784 switch (st->st_mode & S_IFMT) { 785 case S_IFIFO: sdata = "Fifo File"; break; 786 case S_IFCHR: sdata = "Character Device"; break; 787 case S_IFDIR: sdata = "Directory"; break; 788 case S_IFBLK: sdata = "Block Device"; break; 789 case S_IFREG: sdata = "Regular File"; break; 790 case S_IFLNK: sdata = "Symbolic Link"; break; 791 case S_IFSOCK: sdata = "Socket"; break; 792 #ifdef S_IFWHT 793 case S_IFWHT: sdata = "Whiteout File"; break; 794 #endif /* S_IFWHT */ 795 #ifdef S_IFDOOR 796 case S_IFDOOR: sdata = "Door"; break; 797 #endif /* S_IFDOOR */ 798 default: sdata = "???"; break; 799 } 800 hilo = 0; 801 } 802 formats = FMTF_STRING; 803 if (ofmt == 0) 804 ofmt = FMTF_STRING; 805 break; 806 case SHOW_filename: 807 small = 0; 808 data = 0; 809 if (file == NULL) 810 (void)strncpy(path, "(stdin)", sizeof(path)); 811 else 812 (void)strncpy(path, file, sizeof(path)); 813 sdata = path; 814 formats = FMTF_STRING; 815 if (ofmt == 0) 816 ofmt = FMTF_STRING; 817 break; 818 case SHOW_sizerdev: 819 if (S_ISCHR(st->st_mode) || S_ISBLK(st->st_mode)) { 820 char majdev[20], mindev[20]; 821 int l1, l2; 822 823 l1 = format1(st, 824 file, 825 fmt, flen, 826 majdev, sizeof(majdev), 827 flags, size, prec, 828 ofmt, HIGH_PIECE, SHOW_st_rdev); 829 l2 = format1(st, 830 file, 831 fmt, flen, 832 mindev, sizeof(mindev), 833 flags, size, prec, 834 ofmt, LOW_PIECE, SHOW_st_rdev); 835 return (snprintf(buf, blen, "%.*s,%.*s", 836 l1, majdev, l2, mindev)); 837 } 838 else { 839 return (format1(st, 840 file, 841 fmt, flen, 842 buf, blen, 843 flags, size, prec, 844 ofmt, 0, SHOW_st_size)); 845 } 846 /*NOTREACHED*/ 847 default: 848 errx(1, "%.*s: bad format", (int)flen, fmt); 849 } 850 851 /* 852 * If a subdatum was specified but not supported, or an output 853 * format was selected that is not supported, that's an error. 854 */ 855 if (hilo != 0 || (ofmt & formats) == 0) 856 errx(1, "%.*s: bad format", (int)flen, fmt); 857 858 /* 859 * Assemble the format string for passing to printf(3). 860 */ 861 lfmt[0] = '\0'; 862 (void)strcat(lfmt, "%"); 863 if (flags & FLAG_POUND) 864 (void)strcat(lfmt, "#"); 865 if (flags & FLAG_SPACE) 866 (void)strcat(lfmt, " "); 867 if (flags & FLAG_PLUS) 868 (void)strcat(lfmt, "+"); 869 if (flags & FLAG_MINUS) 870 (void)strcat(lfmt, "-"); 871 if (flags & FLAG_ZERO) 872 (void)strcat(lfmt, "0"); 873 874 /* 875 * Only the timespecs support the FLOAT output format, and that 876 * requires work that differs from the other formats. 877 */ 878 if (ofmt == FMTF_FLOAT) { 879 /* 880 * Nothing after the decimal point, so just print seconds. 881 */ 882 if (prec == 0) { 883 if (size != -1) { 884 (void)snprintf(tmp, sizeof(tmp), "%d", size); 885 (void)strcat(lfmt, tmp); 886 } 887 (void)strcat(lfmt, "d"); 888 return (snprintf(buf, blen, lfmt, ts.tv_sec)); 889 } 890 891 /* 892 * Unspecified precision gets all the precision we have: 893 * 9 digits. 894 */ 895 if (prec == -1) 896 prec = 9; 897 898 /* 899 * Adjust the size for the decimal point and the digits 900 * that will follow. 901 */ 902 size -= prec + 1; 903 904 /* 905 * Any leftover size that's legitimate will be used. 906 */ 907 if (size > 0) { 908 (void)snprintf(tmp, sizeof(tmp), "%d", size); 909 (void)strcat(lfmt, tmp); 910 } 911 (void)strcat(lfmt, "d"); 912 913 /* 914 * The stuff after the decimal point always needs zero 915 * filling. 916 */ 917 (void)strcat(lfmt, ".%0"); 918 919 /* 920 * We can "print" at most nine digits of precision. The 921 * rest we will pad on at the end. 922 */ 923 (void)snprintf(tmp, sizeof(tmp), "%dd", prec > 9 ? 9 : prec); 924 (void)strcat(lfmt, tmp); 925 926 /* 927 * For precision of less that nine digits, trim off the 928 * less significant figures. 929 */ 930 for (; prec < 9; prec++) 931 ts.tv_nsec /= 10; 932 933 /* 934 * Use the format, and then tack on any zeroes that 935 * might be required to make up the requested precision. 936 */ 937 l = snprintf(buf, blen, lfmt, ts.tv_sec, ts.tv_nsec); 938 for (; prec > 9 && l < blen; prec--, l++) 939 (void)strcat(buf, "0"); 940 return (l); 941 } 942 943 /* 944 * Add on size and precision, if specified, to the format. 945 */ 946 if (size != -1) { 947 (void)snprintf(tmp, sizeof(tmp), "%d", size); 948 (void)strcat(lfmt, tmp); 949 } 950 if (prec != -1) { 951 (void)snprintf(tmp, sizeof(tmp), ".%d", prec); 952 (void)strcat(lfmt, tmp); 953 } 954 955 /* 956 * String output uses the temporary sdata. 957 */ 958 if (ofmt == FMTF_STRING) { 959 if (sdata == NULL) 960 errx(1, "%.*s: bad format", (int)flen, fmt); 961 (void)strcat(lfmt, "s"); 962 return (snprintf(buf, blen, lfmt, sdata)); 963 } 964 965 /* 966 * Ensure that sign extension does not cause bad looking output 967 * for some forms. 968 */ 969 if (small && ofmt != FMTF_DECIMAL) 970 data = (u_int32_t)data; 971 972 /* 973 * The four "numeric" output forms. 974 */ 975 (void)strcat(lfmt, "ll"); 976 switch (ofmt) { 977 case FMTF_DECIMAL: (void)strcat(lfmt, "d"); break; 978 case FMTF_OCTAL: (void)strcat(lfmt, "o"); break; 979 case FMTF_UNSIGNED: (void)strcat(lfmt, "u"); break; 980 case FMTF_HEX: (void)strcat(lfmt, "x"); break; 981 } 982 983 return (snprintf(buf, blen, lfmt, data)); 984 } 985