stat.c revision 1.20
1 /* $NetBSD: stat.c,v 1.20 2004/12/31 03:24:31 atatat Exp $ */ 2 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #if HAVE_NBTOOL_CONFIG_H 40 #include "nbtool_config.h" 41 #endif 42 43 #include <sys/cdefs.h> 44 #if !defined(lint) 45 __RCSID("$NetBSD: stat.c,v 1.20 2004/12/31 03:24:31 atatat Exp $"); 46 #endif 47 48 #if ! HAVE_NBTOOL_CONFIG_H 49 #define HAVE_STRUCT_STAT_ST_FLAGS 1 50 #define HAVE_STRUCT_STAT_ST_GEN 1 51 #define HAVE_STRUCT_STAT_ST_BIRTHTIME 1 52 #define HAVE_STRUCT_STAT_ST_MTIMENSEC 1 53 #define HAVE_DEVNAME 1 54 #endif /* HAVE_NBTOOL_CONFIG_H */ 55 56 #include <sys/types.h> 57 #include <sys/stat.h> 58 59 #include <ctype.h> 60 #include <err.h> 61 #include <errno.h> 62 #include <grp.h> 63 #include <limits.h> 64 #include <pwd.h> 65 #include <stdio.h> 66 #include <stdlib.h> 67 #include <string.h> 68 #include <time.h> 69 #include <unistd.h> 70 71 #if HAVE_STRUCT_STAT_ST_FLAGS 72 #define DEF_F "%#Xf " 73 #define RAW_F "%f " 74 #define SHELL_F " st_flags=%f" 75 #else /* HAVE_STRUCT_STAT_ST_FLAGS */ 76 #define DEF_F 77 #define RAW_F 78 #define SHELL_F 79 #endif /* HAVE_STRUCT_STAT_ST_FLAGS */ 80 81 #if HAVE_STRUCT_STAT_ST_BIRTHTIME 82 #define DEF_B "\"%SB\" " 83 #define RAW_B "%B " 84 #define SHELL_B "st_birthtime=%B " 85 #else /* HAVE_STRUCT_STAT_ST_BIRTHTIME */ 86 #define DEF_B 87 #define RAW_B 88 #define SHELL_B 89 #endif /* HAVE_STRUCT_STAT_ST_BIRTHTIME */ 90 91 #if HAVE_STRUCT_STAT_ST_ATIM 92 #define st_atimespec st_atim 93 #define st_ctimespec st_ctim 94 #define st_mtimespec st_mtim 95 #endif /* HAVE_STRUCT_STAT_ST_ATIM */ 96 97 #define DEF_FORMAT \ 98 "%d %i %Sp %l %Su %Sg %r %z \"%Sa\" \"%Sm\" \"%Sc\" " DEF_B \ 99 "%k %b " DEF_F "%N" 100 #define RAW_FORMAT "%d %i %#p %l %u %g %r %z %a %m %c " RAW_B \ 101 "%k %b " RAW_F "%N" 102 #define LS_FORMAT "%Sp %l %Su %Sg %Z %Sm %N%SY" 103 #define LSF_FORMAT "%Sp %l %Su %Sg %Z %Sm %N%T%SY" 104 #define SHELL_FORMAT \ 105 "st_dev=%d st_ino=%i st_mode=%#p st_nlink=%l " \ 106 "st_uid=%u st_gid=%g st_rdev=%r st_size=%z " \ 107 "st_atime=%a st_mtime=%m st_ctime=%c " SHELL_B \ 108 "st_blksize=%k st_blocks=%b" SHELL_F 109 #define LINUX_FORMAT \ 110 " File: \"%N\"%n" \ 111 " Size: %-11z FileType: %HT%n" \ 112 " Mode: (%04OLp/%.10Sp) Uid: (%5u/%8Su) Gid: (%5g/%8Sg)%n" \ 113 "Device: %Hd,%Ld Inode: %i Links: %l%n" \ 114 "Access: %Sa%n" \ 115 "Modify: %Sm%n" \ 116 "Change: %Sc" 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_st_dev 'd' 162 #define SHOW_st_ino 'i' 163 #define SHOW_st_mode 'p' 164 #define SHOW_st_nlink 'l' 165 #define SHOW_st_uid 'u' 166 #define SHOW_st_gid 'g' 167 #define SHOW_st_rdev 'r' 168 #define SHOW_st_atime 'a' 169 #define SHOW_st_mtime 'm' 170 #define SHOW_st_ctime 'c' 171 #define SHOW_st_btime 'B' 172 #define SHOW_st_size 'z' 173 #define SHOW_st_blocks 'b' 174 #define SHOW_st_blksize 'k' 175 #define SHOW_st_flags 'f' 176 #define SHOW_st_gen 'v' 177 #define SHOW_symlink 'Y' 178 #define SHOW_filetype 'T' 179 #define SHOW_filename 'N' 180 #define SHOW_sizerdev 'Z' 181 182 void usage(const char *); 183 void output(const struct stat *, const char *, 184 const char *, int, int, int); 185 int format1(const struct stat *, /* stat info */ 186 const char *, /* the file name */ 187 const char *, int, /* the format string itself */ 188 char *, size_t, /* a place to put the output */ 189 int, int, int, int, /* the parsed format */ 190 int, int); 191 192 char *timefmt; 193 int linkfail; 194 195 #define addchar(s, c, nl) \ 196 do { \ 197 (void)fputc((c), (s)); \ 198 (*nl) = ((c) == '\n'); \ 199 } while (0/*CONSTCOND*/) 200 201 int 202 main(int argc, char *argv[]) 203 { 204 struct stat st; 205 int ch, rc, errs, am_readlink; 206 int lsF, fmtchar, usestat, fn, nonl, quiet; 207 char *statfmt, *options, *synopsis; 208 209 am_readlink = 0; 210 lsF = 0; 211 fmtchar = '\0'; 212 usestat = 0; 213 nonl = 0; 214 quiet = 0; 215 linkfail = 0; 216 statfmt = NULL; 217 timefmt = NULL; 218 219 if (strcmp(getprogname(), "readlink") == 0) { 220 am_readlink = 1; 221 options = "n"; 222 synopsis = "[-n] [file ...]"; 223 statfmt = "%Y"; 224 fmtchar = 'f'; 225 quiet = 1; 226 } else { 227 options = "f:FlLnqrst:x"; 228 synopsis = "[-FlLnqrsx] [-f format] [-t timefmt] [file ...]"; 229 } 230 231 while ((ch = getopt(argc, argv, options)) != -1) 232 switch (ch) { 233 case 'F': 234 lsF = 1; 235 break; 236 case 'L': 237 usestat = 1; 238 break; 239 case 'n': 240 nonl = 1; 241 break; 242 case 'q': 243 quiet = 1; 244 break; 245 case 'f': 246 statfmt = optarg; 247 /* FALLTHROUGH */ 248 case 'l': 249 case 'r': 250 case 's': 251 case 'x': 252 if (fmtchar != 0) 253 errx(1, "can't use format '%c' with '%c'", 254 fmtchar, ch); 255 fmtchar = ch; 256 break; 257 case 't': 258 timefmt = optarg; 259 break; 260 default: 261 usage(synopsis); 262 } 263 264 argc -= optind; 265 argv += optind; 266 fn = 1; 267 268 if (fmtchar == '\0') { 269 if (lsF) 270 fmtchar = 'l'; 271 else { 272 fmtchar = 'f'; 273 statfmt = DEF_FORMAT; 274 } 275 } 276 277 if (lsF && fmtchar != 'l') 278 errx(1, "can't use format '%c' with -F", fmtchar); 279 280 switch (fmtchar) { 281 case 'f': 282 /* statfmt already set */ 283 break; 284 case 'l': 285 statfmt = lsF ? LSF_FORMAT : LS_FORMAT; 286 break; 287 case 'r': 288 statfmt = RAW_FORMAT; 289 break; 290 case 's': 291 statfmt = SHELL_FORMAT; 292 break; 293 case 'x': 294 statfmt = LINUX_FORMAT; 295 if (timefmt == NULL) 296 timefmt = "%c"; 297 break; 298 default: 299 usage(synopsis); 300 /*NOTREACHED*/ 301 } 302 303 if (timefmt == NULL) 304 timefmt = TIME_FORMAT; 305 306 errs = 0; 307 do { 308 if (argc == 0) 309 rc = fstat(STDIN_FILENO, &st); 310 else if (usestat) { 311 /* 312 * Try stat() and if it fails, fall back to 313 * lstat() just in case we're examining a 314 * broken symlink. 315 */ 316 if ((rc = stat(argv[0], &st)) == -1 && 317 errno == ENOENT && 318 (rc = lstat(argv[0], &st)) == -1) 319 errno = ENOENT; 320 } 321 else 322 rc = lstat(argv[0], &st); 323 324 if (rc == -1) { 325 errs = 1; 326 linkfail = 1; 327 if (!quiet) 328 warn("%s: %s", 329 argc == 0 ? "(stdin)" : argv[0], 330 usestat ? "stat" : "lstat"); 331 } 332 else 333 output(&st, argv[0], statfmt, fn, nonl, quiet); 334 335 argv++; 336 argc--; 337 fn++; 338 } while (argc > 0); 339 340 return (am_readlink ? linkfail : errs); 341 } 342 343 void 344 usage(const char *synopsis) 345 { 346 347 (void)fprintf(stderr, "usage: %s %s\n", getprogname(), synopsis); 348 exit(1); 349 } 350 351 /* 352 * Parses a format string. 353 */ 354 void 355 output(const struct stat *st, const char *file, 356 const char *statfmt, int fn, int nonl, int quiet) 357 { 358 int flags, size, prec, ofmt, hilo, what; 359 char buf[PATH_MAX]; 360 const char *subfmt; 361 int nl, t, i; 362 363 nl = 1; 364 while (*statfmt != '\0') { 365 366 /* 367 * Non-format characters go straight out. 368 */ 369 if (*statfmt != FMT_MAGIC) { 370 addchar(stdout, *statfmt, &nl); 371 statfmt++; 372 continue; 373 } 374 375 /* 376 * The current format "substring" starts here, 377 * and then we skip the magic. 378 */ 379 subfmt = statfmt; 380 statfmt++; 381 382 /* 383 * Some simple one-character "formats". 384 */ 385 switch (*statfmt) { 386 case SIMPLE_NEWLINE: 387 addchar(stdout, '\n', &nl); 388 statfmt++; 389 continue; 390 case SIMPLE_TAB: 391 addchar(stdout, '\t', &nl); 392 statfmt++; 393 continue; 394 case SIMPLE_PERCENT: 395 addchar(stdout, '%', &nl); 396 statfmt++; 397 continue; 398 case SIMPLE_NUMBER: { 399 char num[12], *p; 400 401 snprintf(num, sizeof(num), "%d", fn); 402 for (p = &num[0]; *p; p++) 403 addchar(stdout, *p, &nl); 404 statfmt++; 405 continue; 406 } 407 } 408 409 /* 410 * This must be an actual format string. Format strings are 411 * similar to printf(3) formats up to a point, and are of 412 * the form: 413 * 414 * % required start of format 415 * [-# +0] opt. format characters 416 * size opt. field width 417 * . opt. decimal separator, followed by 418 * prec opt. precision 419 * fmt opt. output specifier (string, numeric, etc.) 420 * sub opt. sub field specifier (high, middle, low) 421 * datum required field specifier (size, mode, etc) 422 * 423 * Only the % and the datum selector are required. All data 424 * have reasonable default output forms. The "sub" specifier 425 * only applies to certain data (mode, dev, rdev, filetype). 426 * The symlink output defaults to STRING, yet will only emit 427 * the leading " -> " if STRING is explicitly specified. The 428 * sizerdev datum will generate rdev output for character or 429 * block devices, and size output for all others. 430 */ 431 flags = 0; 432 do { 433 if (*statfmt == FMT_POUND) 434 flags |= FLAG_POUND; 435 else if (*statfmt == FMT_SPACE) 436 flags |= FLAG_SPACE; 437 else if (*statfmt == FMT_PLUS) 438 flags |= FLAG_PLUS; 439 else if (*statfmt == FMT_ZERO) 440 flags |= FLAG_ZERO; 441 else if (*statfmt == FMT_MINUS) 442 flags |= FLAG_MINUS; 443 else 444 break; 445 statfmt++; 446 } while (1/*CONSTCOND*/); 447 448 size = -1; 449 if (isdigit((unsigned)*statfmt)) { 450 size = 0; 451 while (isdigit((unsigned)*statfmt)) { 452 size = (size * 10) + (*statfmt - '0'); 453 statfmt++; 454 if (size < 0) 455 goto badfmt; 456 } 457 } 458 459 prec = -1; 460 if (*statfmt == FMT_DOT) { 461 statfmt++; 462 463 prec = 0; 464 while (isdigit((unsigned)*statfmt)) { 465 prec = (prec * 10) + (*statfmt - '0'); 466 statfmt++; 467 if (prec < 0) 468 goto badfmt; 469 } 470 } 471 472 #define fmtcase(x, y) case (y): (x) = (y); statfmt++; break 473 #define fmtcasef(x, y, z) case (y): (x) = (z); statfmt++; break 474 switch (*statfmt) { 475 fmtcasef(ofmt, FMT_DECIMAL, FMTF_DECIMAL); 476 fmtcasef(ofmt, FMT_OCTAL, FMTF_OCTAL); 477 fmtcasef(ofmt, FMT_UNSIGNED, FMTF_UNSIGNED); 478 fmtcasef(ofmt, FMT_HEX, FMTF_HEX); 479 fmtcasef(ofmt, FMT_FLOAT, FMTF_FLOAT); 480 fmtcasef(ofmt, FMT_STRING, FMTF_STRING); 481 default: 482 ofmt = 0; 483 break; 484 } 485 486 switch (*statfmt) { 487 fmtcase(hilo, HIGH_PIECE); 488 fmtcase(hilo, MIDDLE_PIECE); 489 fmtcase(hilo, LOW_PIECE); 490 default: 491 hilo = 0; 492 break; 493 } 494 495 switch (*statfmt) { 496 fmtcase(what, SHOW_st_dev); 497 fmtcase(what, SHOW_st_ino); 498 fmtcase(what, SHOW_st_mode); 499 fmtcase(what, SHOW_st_nlink); 500 fmtcase(what, SHOW_st_uid); 501 fmtcase(what, SHOW_st_gid); 502 fmtcase(what, SHOW_st_rdev); 503 fmtcase(what, SHOW_st_atime); 504 fmtcase(what, SHOW_st_mtime); 505 fmtcase(what, SHOW_st_ctime); 506 fmtcase(what, SHOW_st_btime); 507 fmtcase(what, SHOW_st_size); 508 fmtcase(what, SHOW_st_blocks); 509 fmtcase(what, SHOW_st_blksize); 510 fmtcase(what, SHOW_st_flags); 511 fmtcase(what, SHOW_st_gen); 512 fmtcase(what, SHOW_symlink); 513 fmtcase(what, SHOW_filetype); 514 fmtcase(what, SHOW_filename); 515 fmtcase(what, SHOW_sizerdev); 516 default: 517 goto badfmt; 518 } 519 #undef fmtcasef 520 #undef fmtcase 521 522 t = format1(st, 523 file, 524 subfmt, statfmt - subfmt, 525 buf, sizeof(buf), 526 flags, size, prec, ofmt, hilo, what); 527 528 for (i = 0; i < t && i < sizeof(buf); i++) 529 addchar(stdout, buf[i], &nl); 530 531 continue; 532 533 badfmt: 534 errx(1, "%.*s: bad format", 535 (int)(statfmt - subfmt + 1), subfmt); 536 } 537 538 if (!nl && !nonl) 539 (void)fputc('\n', stdout); 540 (void)fflush(stdout); 541 } 542 543 /* 544 * Arranges output according to a single parsed format substring. 545 */ 546 int 547 format1(const struct stat *st, 548 const char *file, 549 const char *fmt, int flen, 550 char *buf, size_t blen, 551 int flags, int size, int prec, int ofmt, 552 int hilo, int what) 553 { 554 u_int64_t data; 555 char *sdata, lfmt[24], tmp[20]; 556 char smode[12], sid[12], path[PATH_MAX + 4]; 557 struct passwd *pw; 558 struct group *gr; 559 struct tm *tm; 560 time_t secs; 561 long nsecs; 562 int l, small, formats, gottime; 563 564 formats = 0; 565 small = 0; 566 gottime = 0; 567 secs = 0; 568 nsecs = 0; 569 570 /* 571 * First, pick out the data and tweak it based on hilo or 572 * specified output format (symlink output only). 573 */ 574 switch (what) { 575 case SHOW_st_dev: 576 case SHOW_st_rdev: 577 small = (sizeof(st->st_dev) == 4); 578 data = (what == SHOW_st_dev) ? st->st_dev : st->st_rdev; 579 #if HAVE_DEVNAME 580 sdata = (what == SHOW_st_dev) ? 581 devname(st->st_dev, S_IFBLK) : 582 devname(st->st_rdev, 583 S_ISCHR(st->st_mode) ? S_IFCHR : 584 S_ISBLK(st->st_mode) ? S_IFBLK : 585 0U); 586 if (sdata == NULL) 587 sdata = "???"; 588 #endif /* HAVE_DEVNAME */ 589 if (hilo == HIGH_PIECE) { 590 data = major(data); 591 hilo = 0; 592 } 593 else if (hilo == LOW_PIECE) { 594 data = minor((unsigned)data); 595 hilo = 0; 596 } 597 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 598 #if HAVE_DEVNAME 599 FMTF_STRING; 600 #else /* HAVE_DEVNAME */ 601 0; 602 #endif /* HAVE_DEVNAME */ 603 if (ofmt == 0) 604 ofmt = FMTF_UNSIGNED; 605 break; 606 case SHOW_st_ino: 607 small = (sizeof(st->st_ino) == 4); 608 data = st->st_ino; 609 sdata = NULL; 610 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 611 if (ofmt == 0) 612 ofmt = FMTF_UNSIGNED; 613 break; 614 case SHOW_st_mode: 615 small = (sizeof(st->st_mode) == 4); 616 data = st->st_mode; 617 strmode(st->st_mode, smode); 618 sdata = smode; 619 l = strlen(sdata); 620 if (sdata[l - 1] == ' ') 621 sdata[--l] = '\0'; 622 if (hilo == HIGH_PIECE) { 623 data >>= 12; 624 sdata += 1; 625 sdata[3] = '\0'; 626 hilo = 0; 627 } 628 else if (hilo == MIDDLE_PIECE) { 629 data = (data >> 9) & 07; 630 sdata += 4; 631 sdata[3] = '\0'; 632 hilo = 0; 633 } 634 else if (hilo == LOW_PIECE) { 635 data &= 0777; 636 sdata += 7; 637 sdata[3] = '\0'; 638 hilo = 0; 639 } 640 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 641 FMTF_STRING; 642 if (ofmt == 0) 643 ofmt = FMTF_OCTAL; 644 break; 645 case SHOW_st_nlink: 646 small = (sizeof(st->st_dev) == 4); 647 data = st->st_nlink; 648 sdata = NULL; 649 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 650 if (ofmt == 0) 651 ofmt = FMTF_UNSIGNED; 652 break; 653 case SHOW_st_uid: 654 small = (sizeof(st->st_uid) == 4); 655 data = st->st_uid; 656 if ((pw = getpwuid(st->st_uid)) != NULL) 657 sdata = pw->pw_name; 658 else { 659 snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_uid); 660 sdata = sid; 661 } 662 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 663 FMTF_STRING; 664 if (ofmt == 0) 665 ofmt = FMTF_UNSIGNED; 666 break; 667 case SHOW_st_gid: 668 small = (sizeof(st->st_gid) == 4); 669 data = st->st_gid; 670 if ((gr = getgrgid(st->st_gid)) != NULL) 671 sdata = gr->gr_name; 672 else { 673 snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_gid); 674 sdata = sid; 675 } 676 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 677 FMTF_STRING; 678 if (ofmt == 0) 679 ofmt = FMTF_UNSIGNED; 680 break; 681 case SHOW_st_atime: 682 gottime = 1; 683 secs = st->st_atime; 684 #if HAVE_STRUCT_STAT_ST_MTIMENSEC 685 nsecs = st->st_atimensec; 686 #endif 687 /* FALLTHROUGH */ 688 case SHOW_st_mtime: 689 if (!gottime) { 690 gottime = 1; 691 secs = st->st_mtime; 692 #if HAVE_STRUCT_STAT_ST_MTIMENSEC 693 nsecs = st->st_mtimensec; 694 #endif 695 } 696 /* FALLTHROUGH */ 697 case SHOW_st_ctime: 698 if (!gottime) { 699 gottime = 1; 700 secs = st->st_ctime; 701 #if HAVE_STRUCT_STAT_ST_MTIMENSEC 702 nsecs = st->st_ctimensec; 703 #endif 704 } 705 /* FALLTHROUGH */ 706 #if HAVE_STRUCT_STAT_ST_BIRTHTIME 707 case SHOW_st_btime: 708 if (!gottime) { 709 gottime = 1; 710 secs = st->st_birthtime; 711 nsecs = st->st_birthtimensec; 712 } 713 #endif /* HAVE_STRUCT_STAT_ST_BIRTHTIME */ 714 small = (sizeof(secs) == 4); 715 data = secs; 716 small = 1; 717 tm = localtime(&secs); 718 (void)strftime(path, sizeof(path), timefmt, tm); 719 sdata = path; 720 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 721 FMTF_FLOAT | FMTF_STRING; 722 if (ofmt == 0) 723 ofmt = FMTF_DECIMAL; 724 break; 725 case SHOW_st_size: 726 small = (sizeof(st->st_size) == 4); 727 data = st->st_size; 728 sdata = NULL; 729 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 730 if (ofmt == 0) 731 ofmt = FMTF_UNSIGNED; 732 break; 733 case SHOW_st_blocks: 734 small = (sizeof(st->st_blocks) == 4); 735 data = st->st_blocks; 736 sdata = NULL; 737 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 738 if (ofmt == 0) 739 ofmt = FMTF_UNSIGNED; 740 break; 741 case SHOW_st_blksize: 742 small = (sizeof(st->st_blksize) == 4); 743 data = st->st_blksize; 744 sdata = NULL; 745 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 746 if (ofmt == 0) 747 ofmt = FMTF_UNSIGNED; 748 break; 749 #if HAVE_STRUCT_STAT_ST_FLAGS 750 case SHOW_st_flags: 751 small = (sizeof(st->st_flags) == 4); 752 data = st->st_flags; 753 sdata = NULL; 754 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 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 #ifdef S_IFSOCK 807 case S_IFSOCK: (void)strcat(sdata, "="); break; 808 #endif 809 #ifdef S_IFWHT 810 case S_IFWHT: (void)strcat(sdata, "%"); break; 811 #endif /* S_IFWHT */ 812 #ifdef S_IFDOOR 813 case S_IFDOOR: (void)strcat(sdata, ">"); break; 814 #endif /* S_IFDOOR */ 815 } 816 hilo = 0; 817 } 818 else if (hilo == HIGH_PIECE) { 819 switch (st->st_mode & S_IFMT) { 820 case S_IFIFO: sdata = "Fifo File"; break; 821 case S_IFCHR: sdata = "Character Device"; break; 822 case S_IFDIR: sdata = "Directory"; break; 823 case S_IFBLK: sdata = "Block Device"; break; 824 case S_IFREG: sdata = "Regular File"; break; 825 case S_IFLNK: sdata = "Symbolic Link"; break; 826 #ifdef S_IFSOCK 827 case S_IFSOCK: sdata = "Socket"; break; 828 #endif 829 #ifdef S_IFWHT 830 case S_IFWHT: sdata = "Whiteout File"; break; 831 #endif /* S_IFWHT */ 832 #ifdef S_IFDOOR 833 case S_IFDOOR: sdata = "Door"; break; 834 #endif /* S_IFDOOR */ 835 default: sdata = "???"; break; 836 } 837 hilo = 0; 838 } 839 formats = FMTF_STRING; 840 if (ofmt == 0) 841 ofmt = FMTF_STRING; 842 break; 843 case SHOW_filename: 844 small = 0; 845 data = 0; 846 if (file == NULL) { 847 (void)strncpy(path, "(stdin)", sizeof(path)); 848 if (hilo == HIGH_PIECE || hilo == LOW_PIECE) 849 hilo = 0; 850 } 851 else if (hilo == 0) 852 (void)strncpy(path, file, sizeof(path)); 853 else { 854 char *s; 855 (void)strncpy(path, file, sizeof(path)); 856 s = strrchr(path, '/'); 857 if (s != NULL) { 858 /* trim off trailing /'s */ 859 while (s != path && 860 s[0] == '/' && s[1] == '\0') 861 *s-- = '\0'; 862 s = strrchr(path, '/'); 863 } 864 if (hilo == HIGH_PIECE) { 865 if (s == NULL) 866 (void)strncpy(path, ".", sizeof(path)); 867 else { 868 while (s != path && s[0] == '/') 869 *s-- = '\0'; 870 } 871 hilo = 0; 872 } 873 else if (hilo == LOW_PIECE) { 874 if (s != NULL && s[1] != '\0') 875 (void)strncpy(path, s + 1, 876 sizeof(path)); 877 hilo = 0; 878 } 879 } 880 sdata = path; 881 formats = FMTF_STRING; 882 if (ofmt == 0) 883 ofmt = FMTF_STRING; 884 break; 885 case SHOW_sizerdev: 886 if (S_ISCHR(st->st_mode) || S_ISBLK(st->st_mode)) { 887 char majdev[20], mindev[20]; 888 int l1, l2; 889 890 l1 = format1(st, 891 file, 892 fmt, flen, 893 majdev, sizeof(majdev), 894 flags, size, prec, 895 ofmt, HIGH_PIECE, SHOW_st_rdev); 896 l2 = format1(st, 897 file, 898 fmt, flen, 899 mindev, sizeof(mindev), 900 flags, size, prec, 901 ofmt, LOW_PIECE, SHOW_st_rdev); 902 return (snprintf(buf, blen, "%.*s,%.*s", 903 l1, majdev, l2, mindev)); 904 } 905 else { 906 return (format1(st, 907 file, 908 fmt, flen, 909 buf, blen, 910 flags, size, prec, 911 ofmt, 0, SHOW_st_size)); 912 } 913 /*NOTREACHED*/ 914 default: 915 errx(1, "%.*s: bad format", (int)flen, fmt); 916 } 917 918 /* 919 * If a subdatum was specified but not supported, or an output 920 * format was selected that is not supported, that's an error. 921 */ 922 if (hilo != 0 || (ofmt & formats) == 0) 923 errx(1, "%.*s: bad format", (int)flen, fmt); 924 925 /* 926 * Assemble the format string for passing to printf(3). 927 */ 928 lfmt[0] = '\0'; 929 (void)strcat(lfmt, "%"); 930 if (flags & FLAG_POUND) 931 (void)strcat(lfmt, "#"); 932 if (flags & FLAG_SPACE) 933 (void)strcat(lfmt, " "); 934 if (flags & FLAG_PLUS) 935 (void)strcat(lfmt, "+"); 936 if (flags & FLAG_MINUS) 937 (void)strcat(lfmt, "-"); 938 if (flags & FLAG_ZERO) 939 (void)strcat(lfmt, "0"); 940 941 /* 942 * Only the timespecs support the FLOAT output format, and that 943 * requires work that differs from the other formats. 944 */ 945 if (ofmt == FMTF_FLOAT) { 946 /* 947 * Nothing after the decimal point, so just print seconds. 948 */ 949 if (prec == 0) { 950 if (size != -1) { 951 (void)snprintf(tmp, sizeof(tmp), "%d", size); 952 (void)strcat(lfmt, tmp); 953 } 954 (void)strcat(lfmt, "d"); 955 return (snprintf(buf, blen, lfmt, secs)); 956 } 957 958 /* 959 * Unspecified precision gets all the precision we have: 960 * 9 digits. 961 */ 962 if (prec == -1) 963 prec = 9; 964 965 /* 966 * Adjust the size for the decimal point and the digits 967 * that will follow. 968 */ 969 size -= prec + 1; 970 971 /* 972 * Any leftover size that's legitimate will be used. 973 */ 974 if (size > 0) { 975 (void)snprintf(tmp, sizeof(tmp), "%d", size); 976 (void)strcat(lfmt, tmp); 977 } 978 (void)strcat(lfmt, "d"); 979 980 /* 981 * The stuff after the decimal point always needs zero 982 * filling. 983 */ 984 (void)strcat(lfmt, ".%0"); 985 986 /* 987 * We can "print" at most nine digits of precision. The 988 * rest we will pad on at the end. 989 */ 990 (void)snprintf(tmp, sizeof(tmp), "%dd", prec > 9 ? 9 : prec); 991 (void)strcat(lfmt, tmp); 992 993 /* 994 * For precision of less that nine digits, trim off the 995 * less significant figures. 996 */ 997 for (; prec < 9; prec++) 998 nsecs /= 10; 999 1000 /* 1001 * Use the format, and then tack on any zeroes that 1002 * might be required to make up the requested precision. 1003 */ 1004 l = snprintf(buf, blen, lfmt, secs, nsecs); 1005 for (; prec > 9 && l < blen; prec--, l++) 1006 (void)strcat(buf, "0"); 1007 return (l); 1008 } 1009 1010 /* 1011 * Add on size and precision, if specified, to the format. 1012 */ 1013 if (size != -1) { 1014 (void)snprintf(tmp, sizeof(tmp), "%d", size); 1015 (void)strcat(lfmt, tmp); 1016 } 1017 if (prec != -1) { 1018 (void)snprintf(tmp, sizeof(tmp), ".%d", prec); 1019 (void)strcat(lfmt, tmp); 1020 } 1021 1022 /* 1023 * String output uses the temporary sdata. 1024 */ 1025 if (ofmt == FMTF_STRING) { 1026 if (sdata == NULL) 1027 errx(1, "%.*s: bad format", (int)flen, fmt); 1028 (void)strcat(lfmt, "s"); 1029 return (snprintf(buf, blen, lfmt, sdata)); 1030 } 1031 1032 /* 1033 * Ensure that sign extension does not cause bad looking output 1034 * for some forms. 1035 */ 1036 if (small && ofmt != FMTF_DECIMAL) 1037 data = (u_int32_t)data; 1038 1039 /* 1040 * The four "numeric" output forms. 1041 */ 1042 (void)strcat(lfmt, "ll"); 1043 switch (ofmt) { 1044 case FMTF_DECIMAL: (void)strcat(lfmt, "d"); break; 1045 case FMTF_OCTAL: (void)strcat(lfmt, "o"); break; 1046 case FMTF_UNSIGNED: (void)strcat(lfmt, "u"); break; 1047 case FMTF_HEX: (void)strcat(lfmt, "x"); break; 1048 } 1049 1050 return (snprintf(buf, blen, lfmt, data)); 1051 } 1052
Indexes created Tue Sep 23 02:09:52 GMT 2025