stat.c revision 1.21
1 /* $NetBSD: stat.c,v 1.21 2005/01/13 00:53:14 jmc 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 1.21 2005/01/13 00:53:14 jmc 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_BIRTHTIMENSEC 1 53 #define HAVE_STRUCT_STAT_ST_MTIMENSEC 1 54 #define HAVE_DEVNAME 1 55 #endif /* HAVE_NBTOOL_CONFIG_H */ 56 57 #include <sys/types.h> 58 #include <sys/stat.h> 59 60 #include <ctype.h> 61 #include <err.h> 62 #include <errno.h> 63 #include <grp.h> 64 #include <limits.h> 65 #include <pwd.h> 66 #include <stdio.h> 67 #include <stdlib.h> 68 #include <string.h> 69 #include <time.h> 70 #include <unistd.h> 71 72 #if HAVE_STRUCT_STAT_ST_FLAGS 73 #define DEF_F "%#Xf " 74 #define RAW_F "%f " 75 #define SHELL_F " st_flags=%f" 76 #else /* HAVE_STRUCT_STAT_ST_FLAGS */ 77 #define DEF_F 78 #define RAW_F 79 #define SHELL_F 80 #endif /* HAVE_STRUCT_STAT_ST_FLAGS */ 81 82 #if HAVE_STRUCT_STAT_ST_BIRTHTIME 83 #define DEF_B "\"%SB\" " 84 #define RAW_B "%B " 85 #define SHELL_B "st_birthtime=%B " 86 #else /* HAVE_STRUCT_STAT_ST_BIRTHTIME */ 87 #define DEF_B 88 #define RAW_B 89 #define SHELL_B 90 #endif /* HAVE_STRUCT_STAT_ST_BIRTHTIME */ 91 92 #if HAVE_STRUCT_STAT_ST_ATIM 93 #define st_atimespec st_atim 94 #define st_ctimespec st_ctim 95 #define st_mtimespec st_mtim 96 #endif /* HAVE_STRUCT_STAT_ST_ATIM */ 97 98 #define DEF_FORMAT \ 99 "%d %i %Sp %l %Su %Sg %r %z \"%Sa\" \"%Sm\" \"%Sc\" " DEF_B \ 100 "%k %b " DEF_F "%N" 101 #define RAW_FORMAT "%d %i %#p %l %u %g %r %z %a %m %c " RAW_B \ 102 "%k %b " RAW_F "%N" 103 #define LS_FORMAT "%Sp %l %Su %Sg %Z %Sm %N%SY" 104 #define LSF_FORMAT "%Sp %l %Su %Sg %Z %Sm %N%T%SY" 105 #define SHELL_FORMAT \ 106 "st_dev=%d st_ino=%i st_mode=%#p st_nlink=%l " \ 107 "st_uid=%u st_gid=%g st_rdev=%r st_size=%z " \ 108 "st_atime=%a st_mtime=%m st_ctime=%c " SHELL_B \ 109 "st_blksize=%k st_blocks=%b" SHELL_F 110 #define LINUX_FORMAT \ 111 " File: \"%N\"%n" \ 112 " Size: %-11z FileType: %HT%n" \ 113 " Mode: (%04OLp/%.10Sp) Uid: (%5u/%8Su) Gid: (%5g/%8Sg)%n" \ 114 "Device: %Hd,%Ld Inode: %i Links: %l%n" \ 115 "Access: %Sa%n" \ 116 "Modify: %Sm%n" \ 117 "Change: %Sc" 118 119 #define TIME_FORMAT "%b %e %T %Y" 120 121 #define FLAG_POUND 0x01 122 #define FLAG_SPACE 0x02 123 #define FLAG_PLUS 0x04 124 #define FLAG_ZERO 0x08 125 #define FLAG_MINUS 0x10 126 127 /* 128 * These format characters must all be unique, except the magic one. 129 */ 130 #define FMT_MAGIC '%' 131 #define FMT_DOT '.' 132 133 #define SIMPLE_NEWLINE 'n' 134 #define SIMPLE_TAB 't' 135 #define SIMPLE_PERCENT '%' 136 #define SIMPLE_NUMBER '@' 137 138 #define FMT_POUND '#' 139 #define FMT_SPACE ' ' 140 #define FMT_PLUS '+' 141 #define FMT_ZERO '0' 142 #define FMT_MINUS '-' 143 144 #define FMT_DECIMAL 'D' 145 #define FMT_OCTAL 'O' 146 #define FMT_UNSIGNED 'U' 147 #define FMT_HEX 'X' 148 #define FMT_FLOAT 'F' 149 #define FMT_STRING 'S' 150 151 #define FMTF_DECIMAL 0x01 152 #define FMTF_OCTAL 0x02 153 #define FMTF_UNSIGNED 0x04 154 #define FMTF_HEX 0x08 155 #define FMTF_FLOAT 0x10 156 #define FMTF_STRING 0x20 157 158 #define HIGH_PIECE 'H' 159 #define MIDDLE_PIECE 'M' 160 #define LOW_PIECE 'L' 161 162 #define SHOW_st_dev 'd' 163 #define SHOW_st_ino 'i' 164 #define SHOW_st_mode 'p' 165 #define SHOW_st_nlink 'l' 166 #define SHOW_st_uid 'u' 167 #define SHOW_st_gid 'g' 168 #define SHOW_st_rdev 'r' 169 #define SHOW_st_atime 'a' 170 #define SHOW_st_mtime 'm' 171 #define SHOW_st_ctime 'c' 172 #define SHOW_st_btime 'B' 173 #define SHOW_st_size 'z' 174 #define SHOW_st_blocks 'b' 175 #define SHOW_st_blksize 'k' 176 #define SHOW_st_flags 'f' 177 #define SHOW_st_gen 'v' 178 #define SHOW_symlink 'Y' 179 #define SHOW_filetype 'T' 180 #define SHOW_filename 'N' 181 #define SHOW_sizerdev 'Z' 182 183 void usage(const char *); 184 void output(const struct stat *, const char *, 185 const char *, int, int, int); 186 int format1(const struct stat *, /* stat info */ 187 const char *, /* the file name */ 188 const char *, int, /* the format string itself */ 189 char *, size_t, /* a place to put the output */ 190 int, int, int, int, /* the parsed format */ 191 int, int); 192 193 char *timefmt; 194 int linkfail; 195 196 #define addchar(s, c, nl) \ 197 do { \ 198 (void)fputc((c), (s)); \ 199 (*nl) = ((c) == '\n'); \ 200 } while (0/*CONSTCOND*/) 201 202 int 203 main(int argc, char *argv[]) 204 { 205 struct stat st; 206 int ch, rc, errs, am_readlink; 207 int lsF, fmtchar, usestat, fn, nonl, quiet; 208 char *statfmt, *options, *synopsis; 209 210 am_readlink = 0; 211 lsF = 0; 212 fmtchar = '\0'; 213 usestat = 0; 214 nonl = 0; 215 quiet = 0; 216 linkfail = 0; 217 statfmt = NULL; 218 timefmt = NULL; 219 220 if (strcmp(getprogname(), "readlink") == 0) { 221 am_readlink = 1; 222 options = "n"; 223 synopsis = "[-n] [file ...]"; 224 statfmt = "%Y"; 225 fmtchar = 'f'; 226 quiet = 1; 227 } else { 228 options = "f:FlLnqrst:x"; 229 synopsis = "[-FlLnqrsx] [-f format] [-t timefmt] [file ...]"; 230 } 231 232 while ((ch = getopt(argc, argv, options)) != -1) 233 switch (ch) { 234 case 'F': 235 lsF = 1; 236 break; 237 case 'L': 238 usestat = 1; 239 break; 240 case 'n': 241 nonl = 1; 242 break; 243 case 'q': 244 quiet = 1; 245 break; 246 case 'f': 247 statfmt = optarg; 248 /* FALLTHROUGH */ 249 case 'l': 250 case 'r': 251 case 's': 252 case 'x': 253 if (fmtchar != 0) 254 errx(1, "can't use format '%c' with '%c'", 255 fmtchar, ch); 256 fmtchar = ch; 257 break; 258 case 't': 259 timefmt = optarg; 260 break; 261 default: 262 usage(synopsis); 263 } 264 265 argc -= optind; 266 argv += optind; 267 fn = 1; 268 269 if (fmtchar == '\0') { 270 if (lsF) 271 fmtchar = 'l'; 272 else { 273 fmtchar = 'f'; 274 statfmt = DEF_FORMAT; 275 } 276 } 277 278 if (lsF && fmtchar != 'l') 279 errx(1, "can't use format '%c' with -F", fmtchar); 280 281 switch (fmtchar) { 282 case 'f': 283 /* statfmt already set */ 284 break; 285 case 'l': 286 statfmt = lsF ? LSF_FORMAT : LS_FORMAT; 287 break; 288 case 'r': 289 statfmt = RAW_FORMAT; 290 break; 291 case 's': 292 statfmt = SHELL_FORMAT; 293 break; 294 case 'x': 295 statfmt = LINUX_FORMAT; 296 if (timefmt == NULL) 297 timefmt = "%c"; 298 break; 299 default: 300 usage(synopsis); 301 /*NOTREACHED*/ 302 } 303 304 if (timefmt == NULL) 305 timefmt = TIME_FORMAT; 306 307 errs = 0; 308 do { 309 if (argc == 0) 310 rc = fstat(STDIN_FILENO, &st); 311 else if (usestat) { 312 /* 313 * Try stat() and if it fails, fall back to 314 * lstat() just in case we're examining a 315 * broken symlink. 316 */ 317 if ((rc = stat(argv[0], &st)) == -1 && 318 errno == ENOENT && 319 (rc = lstat(argv[0], &st)) == -1) 320 errno = ENOENT; 321 } 322 else 323 rc = lstat(argv[0], &st); 324 325 if (rc == -1) { 326 errs = 1; 327 linkfail = 1; 328 if (!quiet) 329 warn("%s: %s", 330 argc == 0 ? "(stdin)" : argv[0], 331 usestat ? "stat" : "lstat"); 332 } 333 else 334 output(&st, argv[0], statfmt, fn, nonl, quiet); 335 336 argv++; 337 argc--; 338 fn++; 339 } while (argc > 0); 340 341 return (am_readlink ? linkfail : errs); 342 } 343 344 void 345 usage(const char *synopsis) 346 { 347 348 (void)fprintf(stderr, "usage: %s %s\n", getprogname(), synopsis); 349 exit(1); 350 } 351 352 /* 353 * Parses a format string. 354 */ 355 void 356 output(const struct stat *st, const char *file, 357 const char *statfmt, int fn, int nonl, int quiet) 358 { 359 int flags, size, prec, ofmt, hilo, what; 360 char buf[PATH_MAX]; 361 const char *subfmt; 362 int nl, t, i; 363 364 nl = 1; 365 while (*statfmt != '\0') { 366 367 /* 368 * Non-format characters go straight out. 369 */ 370 if (*statfmt != FMT_MAGIC) { 371 addchar(stdout, *statfmt, &nl); 372 statfmt++; 373 continue; 374 } 375 376 /* 377 * The current format "substring" starts here, 378 * and then we skip the magic. 379 */ 380 subfmt = statfmt; 381 statfmt++; 382 383 /* 384 * Some simple one-character "formats". 385 */ 386 switch (*statfmt) { 387 case SIMPLE_NEWLINE: 388 addchar(stdout, '\n', &nl); 389 statfmt++; 390 continue; 391 case SIMPLE_TAB: 392 addchar(stdout, '\t', &nl); 393 statfmt++; 394 continue; 395 case SIMPLE_PERCENT: 396 addchar(stdout, '%', &nl); 397 statfmt++; 398 continue; 399 case SIMPLE_NUMBER: { 400 char num[12], *p; 401 402 snprintf(num, sizeof(num), "%d", fn); 403 for (p = &num[0]; *p; p++) 404 addchar(stdout, *p, &nl); 405 statfmt++; 406 continue; 407 } 408 } 409 410 /* 411 * This must be an actual format string. Format strings are 412 * similar to printf(3) formats up to a point, and are of 413 * the form: 414 * 415 * % required start of format 416 * [-# +0] opt. format characters 417 * size opt. field width 418 * . opt. decimal separator, followed by 419 * prec opt. precision 420 * fmt opt. output specifier (string, numeric, etc.) 421 * sub opt. sub field specifier (high, middle, low) 422 * datum required field specifier (size, mode, etc) 423 * 424 * Only the % and the datum selector are required. All data 425 * have reasonable default output forms. The "sub" specifier 426 * only applies to certain data (mode, dev, rdev, filetype). 427 * The symlink output defaults to STRING, yet will only emit 428 * the leading " -> " if STRING is explicitly specified. The 429 * sizerdev datum will generate rdev output for character or 430 * block devices, and size output for all others. 431 */ 432 flags = 0; 433 do { 434 if (*statfmt == FMT_POUND) 435 flags |= FLAG_POUND; 436 else if (*statfmt == FMT_SPACE) 437 flags |= FLAG_SPACE; 438 else if (*statfmt == FMT_PLUS) 439 flags |= FLAG_PLUS; 440 else if (*statfmt == FMT_ZERO) 441 flags |= FLAG_ZERO; 442 else if (*statfmt == FMT_MINUS) 443 flags |= FLAG_MINUS; 444 else 445 break; 446 statfmt++; 447 } while (1/*CONSTCOND*/); 448 449 size = -1; 450 if (isdigit((unsigned)*statfmt)) { 451 size = 0; 452 while (isdigit((unsigned)*statfmt)) { 453 size = (size * 10) + (*statfmt - '0'); 454 statfmt++; 455 if (size < 0) 456 goto badfmt; 457 } 458 } 459 460 prec = -1; 461 if (*statfmt == FMT_DOT) { 462 statfmt++; 463 464 prec = 0; 465 while (isdigit((unsigned)*statfmt)) { 466 prec = (prec * 10) + (*statfmt - '0'); 467 statfmt++; 468 if (prec < 0) 469 goto badfmt; 470 } 471 } 472 473 #define fmtcase(x, y) case (y): (x) = (y); statfmt++; break 474 #define fmtcasef(x, y, z) case (y): (x) = (z); statfmt++; break 475 switch (*statfmt) { 476 fmtcasef(ofmt, FMT_DECIMAL, FMTF_DECIMAL); 477 fmtcasef(ofmt, FMT_OCTAL, FMTF_OCTAL); 478 fmtcasef(ofmt, FMT_UNSIGNED, FMTF_UNSIGNED); 479 fmtcasef(ofmt, FMT_HEX, FMTF_HEX); 480 fmtcasef(ofmt, FMT_FLOAT, FMTF_FLOAT); 481 fmtcasef(ofmt, FMT_STRING, FMTF_STRING); 482 default: 483 ofmt = 0; 484 break; 485 } 486 487 switch (*statfmt) { 488 fmtcase(hilo, HIGH_PIECE); 489 fmtcase(hilo, MIDDLE_PIECE); 490 fmtcase(hilo, LOW_PIECE); 491 default: 492 hilo = 0; 493 break; 494 } 495 496 switch (*statfmt) { 497 fmtcase(what, SHOW_st_dev); 498 fmtcase(what, SHOW_st_ino); 499 fmtcase(what, SHOW_st_mode); 500 fmtcase(what, SHOW_st_nlink); 501 fmtcase(what, SHOW_st_uid); 502 fmtcase(what, SHOW_st_gid); 503 fmtcase(what, SHOW_st_rdev); 504 fmtcase(what, SHOW_st_atime); 505 fmtcase(what, SHOW_st_mtime); 506 fmtcase(what, SHOW_st_ctime); 507 fmtcase(what, SHOW_st_btime); 508 fmtcase(what, SHOW_st_size); 509 fmtcase(what, SHOW_st_blocks); 510 fmtcase(what, SHOW_st_blksize); 511 fmtcase(what, SHOW_st_flags); 512 fmtcase(what, SHOW_st_gen); 513 fmtcase(what, SHOW_symlink); 514 fmtcase(what, SHOW_filetype); 515 fmtcase(what, SHOW_filename); 516 fmtcase(what, SHOW_sizerdev); 517 default: 518 goto badfmt; 519 } 520 #undef fmtcasef 521 #undef fmtcase 522 523 t = format1(st, 524 file, 525 subfmt, statfmt - subfmt, 526 buf, sizeof(buf), 527 flags, size, prec, ofmt, hilo, what); 528 529 for (i = 0; i < t && i < sizeof(buf); i++) 530 addchar(stdout, buf[i], &nl); 531 532 continue; 533 534 badfmt: 535 errx(1, "%.*s: bad format", 536 (int)(statfmt - subfmt + 1), subfmt); 537 } 538 539 if (!nl && !nonl) 540 (void)fputc('\n', stdout); 541 (void)fflush(stdout); 542 } 543 544 /* 545 * Arranges output according to a single parsed format substring. 546 */ 547 int 548 format1(const struct stat *st, 549 const char *file, 550 const char *fmt, int flen, 551 char *buf, size_t blen, 552 int flags, int size, int prec, int ofmt, 553 int hilo, int what) 554 { 555 u_int64_t data; 556 char *sdata, lfmt[24], tmp[20]; 557 char smode[12], sid[12], path[PATH_MAX + 4]; 558 struct passwd *pw; 559 struct group *gr; 560 struct tm *tm; 561 time_t secs; 562 long nsecs; 563 int l, small, formats, gottime; 564 565 formats = 0; 566 small = 0; 567 gottime = 0; 568 secs = 0; 569 nsecs = 0; 570 571 /* 572 * First, pick out the data and tweak it based on hilo or 573 * specified output format (symlink output only). 574 */ 575 switch (what) { 576 case SHOW_st_dev: 577 case SHOW_st_rdev: 578 small = (sizeof(st->st_dev) == 4); 579 data = (what == SHOW_st_dev) ? st->st_dev : st->st_rdev; 580 #if HAVE_DEVNAME 581 sdata = (what == SHOW_st_dev) ? 582 devname(st->st_dev, S_IFBLK) : 583 devname(st->st_rdev, 584 S_ISCHR(st->st_mode) ? S_IFCHR : 585 S_ISBLK(st->st_mode) ? S_IFBLK : 586 0U); 587 if (sdata == NULL) 588 sdata = "???"; 589 #endif /* HAVE_DEVNAME */ 590 if (hilo == HIGH_PIECE) { 591 data = major(data); 592 hilo = 0; 593 } 594 else if (hilo == LOW_PIECE) { 595 data = minor((unsigned)data); 596 hilo = 0; 597 } 598 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 599 #if HAVE_DEVNAME 600 FMTF_STRING; 601 #else /* HAVE_DEVNAME */ 602 0; 603 #endif /* HAVE_DEVNAME */ 604 if (ofmt == 0) 605 ofmt = FMTF_UNSIGNED; 606 break; 607 case SHOW_st_ino: 608 small = (sizeof(st->st_ino) == 4); 609 data = st->st_ino; 610 sdata = NULL; 611 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 612 if (ofmt == 0) 613 ofmt = FMTF_UNSIGNED; 614 break; 615 case SHOW_st_mode: 616 small = (sizeof(st->st_mode) == 4); 617 data = st->st_mode; 618 strmode(st->st_mode, smode); 619 sdata = smode; 620 l = strlen(sdata); 621 if (sdata[l - 1] == ' ') 622 sdata[--l] = '\0'; 623 if (hilo == HIGH_PIECE) { 624 data >>= 12; 625 sdata += 1; 626 sdata[3] = '\0'; 627 hilo = 0; 628 } 629 else if (hilo == MIDDLE_PIECE) { 630 data = (data >> 9) & 07; 631 sdata += 4; 632 sdata[3] = '\0'; 633 hilo = 0; 634 } 635 else if (hilo == LOW_PIECE) { 636 data &= 0777; 637 sdata += 7; 638 sdata[3] = '\0'; 639 hilo = 0; 640 } 641 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 642 FMTF_STRING; 643 if (ofmt == 0) 644 ofmt = FMTF_OCTAL; 645 break; 646 case SHOW_st_nlink: 647 small = (sizeof(st->st_dev) == 4); 648 data = st->st_nlink; 649 sdata = NULL; 650 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 651 if (ofmt == 0) 652 ofmt = FMTF_UNSIGNED; 653 break; 654 case SHOW_st_uid: 655 small = (sizeof(st->st_uid) == 4); 656 data = st->st_uid; 657 if ((pw = getpwuid(st->st_uid)) != NULL) 658 sdata = pw->pw_name; 659 else { 660 snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_uid); 661 sdata = sid; 662 } 663 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 664 FMTF_STRING; 665 if (ofmt == 0) 666 ofmt = FMTF_UNSIGNED; 667 break; 668 case SHOW_st_gid: 669 small = (sizeof(st->st_gid) == 4); 670 data = st->st_gid; 671 if ((gr = getgrgid(st->st_gid)) != NULL) 672 sdata = gr->gr_name; 673 else { 674 snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_gid); 675 sdata = sid; 676 } 677 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 678 FMTF_STRING; 679 if (ofmt == 0) 680 ofmt = FMTF_UNSIGNED; 681 break; 682 case SHOW_st_atime: 683 gottime = 1; 684 secs = st->st_atime; 685 #if HAVE_STRUCT_STAT_ST_MTIMENSEC 686 nsecs = st->st_atimensec; 687 #endif 688 /* FALLTHROUGH */ 689 case SHOW_st_mtime: 690 if (!gottime) { 691 gottime = 1; 692 secs = st->st_mtime; 693 #if HAVE_STRUCT_STAT_ST_MTIMENSEC 694 nsecs = st->st_mtimensec; 695 #endif 696 } 697 /* FALLTHROUGH */ 698 case SHOW_st_ctime: 699 if (!gottime) { 700 gottime = 1; 701 secs = st->st_ctime; 702 #if HAVE_STRUCT_STAT_ST_MTIMENSEC 703 nsecs = st->st_ctimensec; 704 #endif 705 } 706 /* FALLTHROUGH */ 707 #if HAVE_STRUCT_STAT_ST_BIRTHTIME 708 case SHOW_st_btime: 709 if (!gottime) { 710 gottime = 1; 711 secs = st->st_birthtime; 712 #if HAVE_STRUCT_STAT_ST_BIRTHTIMENSEC 713 nsecs = st->st_birthtimensec; 714 #endif /* HAVE_STRUCT_STAT_ST_BIRTHTIMENSEC */ 715 } 716 #endif /* HAVE_STRUCT_STAT_ST_BIRTHTIME */ 717 small = (sizeof(secs) == 4); 718 data = secs; 719 small = 1; 720 tm = localtime(&secs); 721 (void)strftime(path, sizeof(path), timefmt, tm); 722 sdata = path; 723 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 724 FMTF_FLOAT | FMTF_STRING; 725 if (ofmt == 0) 726 ofmt = FMTF_DECIMAL; 727 break; 728 case SHOW_st_size: 729 small = (sizeof(st->st_size) == 4); 730 data = st->st_size; 731 sdata = NULL; 732 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 733 if (ofmt == 0) 734 ofmt = FMTF_UNSIGNED; 735 break; 736 case SHOW_st_blocks: 737 small = (sizeof(st->st_blocks) == 4); 738 data = st->st_blocks; 739 sdata = NULL; 740 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 741 if (ofmt == 0) 742 ofmt = FMTF_UNSIGNED; 743 break; 744 case SHOW_st_blksize: 745 small = (sizeof(st->st_blksize) == 4); 746 data = st->st_blksize; 747 sdata = NULL; 748 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 749 if (ofmt == 0) 750 ofmt = FMTF_UNSIGNED; 751 break; 752 #if HAVE_STRUCT_STAT_ST_FLAGS 753 case SHOW_st_flags: 754 small = (sizeof(st->st_flags) == 4); 755 data = st->st_flags; 756 sdata = NULL; 757 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 758 if (ofmt == 0) 759 ofmt = FMTF_UNSIGNED; 760 break; 761 #endif /* HAVE_STRUCT_STAT_ST_FLAGS */ 762 #if HAVE_STRUCT_STAT_ST_GEN 763 case SHOW_st_gen: 764 small = (sizeof(st->st_gen) == 4); 765 data = st->st_gen; 766 sdata = NULL; 767 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 768 if (ofmt == 0) 769 ofmt = FMTF_UNSIGNED; 770 break; 771 #endif /* HAVE_STRUCT_STAT_ST_GEN */ 772 case SHOW_symlink: 773 small = 0; 774 data = 0; 775 if (S_ISLNK(st->st_mode)) { 776 snprintf(path, sizeof(path), " -> "); 777 l = readlink(file, path + 4, sizeof(path) - 4 - 1); 778 if (l == -1) { 779 linkfail = 1; 780 l = 0; 781 path[0] = '\0'; 782 } 783 path[l + 4] = '\0'; 784 sdata = path + (ofmt == FMTF_STRING ? 0 : 4); 785 } 786 else { 787 linkfail = 1; 788 sdata = ""; 789 } 790 formats = FMTF_STRING; 791 if (ofmt == 0) 792 ofmt = FMTF_STRING; 793 break; 794 case SHOW_filetype: 795 small = 0; 796 data = 0; 797 sdata = smode; 798 sdata[0] = '\0'; 799 if (hilo == 0 || hilo == LOW_PIECE) { 800 switch (st->st_mode & S_IFMT) { 801 case S_IFIFO: (void)strcat(sdata, "|"); break; 802 case S_IFDIR: (void)strcat(sdata, "/"); break; 803 case S_IFREG: 804 if (st->st_mode & 805 (S_IXUSR | S_IXGRP | S_IXOTH)) 806 (void)strcat(sdata, "*"); 807 break; 808 case S_IFLNK: (void)strcat(sdata, "@"); break; 809 #ifdef S_IFSOCK 810 case S_IFSOCK: (void)strcat(sdata, "="); break; 811 #endif 812 #ifdef S_IFWHT 813 case S_IFWHT: (void)strcat(sdata, "%"); break; 814 #endif /* S_IFWHT */ 815 #ifdef S_IFDOOR 816 case S_IFDOOR: (void)strcat(sdata, ">"); break; 817 #endif /* S_IFDOOR */ 818 } 819 hilo = 0; 820 } 821 else if (hilo == HIGH_PIECE) { 822 switch (st->st_mode & S_IFMT) { 823 case S_IFIFO: sdata = "Fifo File"; break; 824 case S_IFCHR: sdata = "Character Device"; break; 825 case S_IFDIR: sdata = "Directory"; break; 826 case S_IFBLK: sdata = "Block Device"; break; 827 case S_IFREG: sdata = "Regular File"; break; 828 case S_IFLNK: sdata = "Symbolic Link"; break; 829 #ifdef S_IFSOCK 830 case S_IFSOCK: sdata = "Socket"; break; 831 #endif 832 #ifdef S_IFWHT 833 case S_IFWHT: sdata = "Whiteout File"; break; 834 #endif /* S_IFWHT */ 835 #ifdef S_IFDOOR 836 case S_IFDOOR: sdata = "Door"; break; 837 #endif /* S_IFDOOR */ 838 default: sdata = "???"; break; 839 } 840 hilo = 0; 841 } 842 formats = FMTF_STRING; 843 if (ofmt == 0) 844 ofmt = FMTF_STRING; 845 break; 846 case SHOW_filename: 847 small = 0; 848 data = 0; 849 if (file == NULL) { 850 (void)strncpy(path, "(stdin)", sizeof(path)); 851 if (hilo == HIGH_PIECE || hilo == LOW_PIECE) 852 hilo = 0; 853 } 854 else if (hilo == 0) 855 (void)strncpy(path, file, sizeof(path)); 856 else { 857 char *s; 858 (void)strncpy(path, file, sizeof(path)); 859 s = strrchr(path, '/'); 860 if (s != NULL) { 861 /* trim off trailing /'s */ 862 while (s != path && 863 s[0] == '/' && s[1] == '\0') 864 *s-- = '\0'; 865 s = strrchr(path, '/'); 866 } 867 if (hilo == HIGH_PIECE) { 868 if (s == NULL) 869 (void)strncpy(path, ".", sizeof(path)); 870 else { 871 while (s != path && s[0] == '/') 872 *s-- = '\0'; 873 } 874 hilo = 0; 875 } 876 else if (hilo == LOW_PIECE) { 877 if (s != NULL && s[1] != '\0') 878 (void)strncpy(path, s + 1, 879 sizeof(path)); 880 hilo = 0; 881 } 882 } 883 sdata = path; 884 formats = FMTF_STRING; 885 if (ofmt == 0) 886 ofmt = FMTF_STRING; 887 break; 888 case SHOW_sizerdev: 889 if (S_ISCHR(st->st_mode) || S_ISBLK(st->st_mode)) { 890 char majdev[20], mindev[20]; 891 int l1, l2; 892 893 l1 = format1(st, 894 file, 895 fmt, flen, 896 majdev, sizeof(majdev), 897 flags, size, prec, 898 ofmt, HIGH_PIECE, SHOW_st_rdev); 899 l2 = format1(st, 900 file, 901 fmt, flen, 902 mindev, sizeof(mindev), 903 flags, size, prec, 904 ofmt, LOW_PIECE, SHOW_st_rdev); 905 return (snprintf(buf, blen, "%.*s,%.*s", 906 l1, majdev, l2, mindev)); 907 } 908 else { 909 return (format1(st, 910 file, 911 fmt, flen, 912 buf, blen, 913 flags, size, prec, 914 ofmt, 0, SHOW_st_size)); 915 } 916 /*NOTREACHED*/ 917 default: 918 errx(1, "%.*s: bad format", (int)flen, fmt); 919 } 920 921 /* 922 * If a subdatum was specified but not supported, or an output 923 * format was selected that is not supported, that's an error. 924 */ 925 if (hilo != 0 || (ofmt & formats) == 0) 926 errx(1, "%.*s: bad format", (int)flen, fmt); 927 928 /* 929 * Assemble the format string for passing to printf(3). 930 */ 931 lfmt[0] = '\0'; 932 (void)strcat(lfmt, "%"); 933 if (flags & FLAG_POUND) 934 (void)strcat(lfmt, "#"); 935 if (flags & FLAG_SPACE) 936 (void)strcat(lfmt, " "); 937 if (flags & FLAG_PLUS) 938 (void)strcat(lfmt, "+"); 939 if (flags & FLAG_MINUS) 940 (void)strcat(lfmt, "-"); 941 if (flags & FLAG_ZERO) 942 (void)strcat(lfmt, "0"); 943 944 /* 945 * Only the timespecs support the FLOAT output format, and that 946 * requires work that differs from the other formats. 947 */ 948 if (ofmt == FMTF_FLOAT) { 949 /* 950 * Nothing after the decimal point, so just print seconds. 951 */ 952 if (prec == 0) { 953 if (size != -1) { 954 (void)snprintf(tmp, sizeof(tmp), "%d", size); 955 (void)strcat(lfmt, tmp); 956 } 957 (void)strcat(lfmt, "d"); 958 return (snprintf(buf, blen, lfmt, secs)); 959 } 960 961 /* 962 * Unspecified precision gets all the precision we have: 963 * 9 digits. 964 */ 965 if (prec == -1) 966 prec = 9; 967 968 /* 969 * Adjust the size for the decimal point and the digits 970 * that will follow. 971 */ 972 size -= prec + 1; 973 974 /* 975 * Any leftover size that's legitimate will be used. 976 */ 977 if (size > 0) { 978 (void)snprintf(tmp, sizeof(tmp), "%d", size); 979 (void)strcat(lfmt, tmp); 980 } 981 (void)strcat(lfmt, "d"); 982 983 /* 984 * The stuff after the decimal point always needs zero 985 * filling. 986 */ 987 (void)strcat(lfmt, ".%0"); 988 989 /* 990 * We can "print" at most nine digits of precision. The 991 * rest we will pad on at the end. 992 */ 993 (void)snprintf(tmp, sizeof(tmp), "%dd", prec > 9 ? 9 : prec); 994 (void)strcat(lfmt, tmp); 995 996 /* 997 * For precision of less that nine digits, trim off the 998 * less significant figures. 999 */ 1000 for (; prec < 9; prec++) 1001 nsecs /= 10; 1002 1003 /* 1004 * Use the format, and then tack on any zeroes that 1005 * might be required to make up the requested precision. 1006 */ 1007 l = snprintf(buf, blen, lfmt, secs, nsecs); 1008 for (; prec > 9 && l < blen; prec--, l++) 1009 (void)strcat(buf, "0"); 1010 return (l); 1011 } 1012 1013 /* 1014 * Add on size and precision, if specified, to the format. 1015 */ 1016 if (size != -1) { 1017 (void)snprintf(tmp, sizeof(tmp), "%d", size); 1018 (void)strcat(lfmt, tmp); 1019 } 1020 if (prec != -1) { 1021 (void)snprintf(tmp, sizeof(tmp), ".%d", prec); 1022 (void)strcat(lfmt, tmp); 1023 } 1024 1025 /* 1026 * String output uses the temporary sdata. 1027 */ 1028 if (ofmt == FMTF_STRING) { 1029 if (sdata == NULL) 1030 errx(1, "%.*s: bad format", (int)flen, fmt); 1031 (void)strcat(lfmt, "s"); 1032 return (snprintf(buf, blen, lfmt, sdata)); 1033 } 1034 1035 /* 1036 * Ensure that sign extension does not cause bad looking output 1037 * for some forms. 1038 */ 1039 if (small && ofmt != FMTF_DECIMAL) 1040 data = (u_int32_t)data; 1041 1042 /* 1043 * The four "numeric" output forms. 1044 */ 1045 (void)strcat(lfmt, "ll"); 1046 switch (ofmt) { 1047 case FMTF_DECIMAL: (void)strcat(lfmt, "d"); break; 1048 case FMTF_OCTAL: (void)strcat(lfmt, "o"); break; 1049 case FMTF_UNSIGNED: (void)strcat(lfmt, "u"); break; 1050 case FMTF_HEX: (void)strcat(lfmt, "x"); break; 1051 } 1052 1053 return (snprintf(buf, blen, lfmt, data)); 1054 } 1055
Indexes created Mon Sep 22 13:09:51 GMT 2025