stat.c revision 1.19
1 /* $NetBSD: stat.c,v 1.19 2004/06/20 22:20:16 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 1.19 2004/06/20 22:20:16 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_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: stat", 329 argc == 0 ? "(stdin)" : argv[0]); 330 } 331 else 332 output(&st, argv[0], statfmt, fn, nonl, quiet); 333 334 argv++; 335 argc--; 336 fn++; 337 } while (argc > 0); 338 339 return (am_readlink ? linkfail : errs); 340 } 341 342 void 343 usage(const char *synopsis) 344 { 345 346 (void)fprintf(stderr, "usage: %s %s\n", getprogname(), synopsis); 347 exit(1); 348 } 349 350 /* 351 * Parses a format string. 352 */ 353 void 354 output(const struct stat *st, const char *file, 355 const char *statfmt, int fn, int nonl, int quiet) 356 { 357 int flags, size, prec, ofmt, hilo, what; 358 char buf[PATH_MAX]; 359 const char *subfmt; 360 int nl, t, i; 361 362 nl = 1; 363 while (*statfmt != '\0') { 364 365 /* 366 * Non-format characters go straight out. 367 */ 368 if (*statfmt != FMT_MAGIC) { 369 addchar(stdout, *statfmt, &nl); 370 statfmt++; 371 continue; 372 } 373 374 /* 375 * The current format "substring" starts here, 376 * and then we skip the magic. 377 */ 378 subfmt = statfmt; 379 statfmt++; 380 381 /* 382 * Some simple one-character "formats". 383 */ 384 switch (*statfmt) { 385 case SIMPLE_NEWLINE: 386 addchar(stdout, '\n', &nl); 387 statfmt++; 388 continue; 389 case SIMPLE_TAB: 390 addchar(stdout, '\t', &nl); 391 statfmt++; 392 continue; 393 case SIMPLE_PERCENT: 394 addchar(stdout, '%', &nl); 395 statfmt++; 396 continue; 397 case SIMPLE_NUMBER: { 398 char num[12], *p; 399 400 snprintf(num, sizeof(num), "%d", fn); 401 for (p = &num[0]; *p; p++) 402 addchar(stdout, *p, &nl); 403 statfmt++; 404 continue; 405 } 406 } 407 408 /* 409 * This must be an actual format string. Format strings are 410 * similar to printf(3) formats up to a point, and are of 411 * the form: 412 * 413 * % required start of format 414 * [-# +0] opt. format characters 415 * size opt. field width 416 * . opt. decimal separator, followed by 417 * prec opt. precision 418 * fmt opt. output specifier (string, numeric, etc.) 419 * sub opt. sub field specifier (high, middle, low) 420 * datum required field specifier (size, mode, etc) 421 * 422 * Only the % and the datum selector are required. All data 423 * have reasonable default output forms. The "sub" specifier 424 * only applies to certain data (mode, dev, rdev, filetype). 425 * The symlink output defaults to STRING, yet will only emit 426 * the leading " -> " if STRING is explicitly specified. The 427 * sizerdev datum will generate rdev output for character or 428 * block devices, and size output for all others. 429 */ 430 flags = 0; 431 do { 432 if (*statfmt == FMT_POUND) 433 flags |= FLAG_POUND; 434 else if (*statfmt == FMT_SPACE) 435 flags |= FLAG_SPACE; 436 else if (*statfmt == FMT_PLUS) 437 flags |= FLAG_PLUS; 438 else if (*statfmt == FMT_ZERO) 439 flags |= FLAG_ZERO; 440 else if (*statfmt == FMT_MINUS) 441 flags |= FLAG_MINUS; 442 else 443 break; 444 statfmt++; 445 } while (1/*CONSTCOND*/); 446 447 size = -1; 448 if (isdigit((unsigned)*statfmt)) { 449 size = 0; 450 while (isdigit((unsigned)*statfmt)) { 451 size = (size * 10) + (*statfmt - '0'); 452 statfmt++; 453 if (size < 0) 454 goto badfmt; 455 } 456 } 457 458 prec = -1; 459 if (*statfmt == FMT_DOT) { 460 statfmt++; 461 462 prec = 0; 463 while (isdigit((unsigned)*statfmt)) { 464 prec = (prec * 10) + (*statfmt - '0'); 465 statfmt++; 466 if (prec < 0) 467 goto badfmt; 468 } 469 } 470 471 #define fmtcase(x, y) case (y): (x) = (y); statfmt++; break 472 #define fmtcasef(x, y, z) case (y): (x) = (z); statfmt++; break 473 switch (*statfmt) { 474 fmtcasef(ofmt, FMT_DECIMAL, FMTF_DECIMAL); 475 fmtcasef(ofmt, FMT_OCTAL, FMTF_OCTAL); 476 fmtcasef(ofmt, FMT_UNSIGNED, FMTF_UNSIGNED); 477 fmtcasef(ofmt, FMT_HEX, FMTF_HEX); 478 fmtcasef(ofmt, FMT_FLOAT, FMTF_FLOAT); 479 fmtcasef(ofmt, FMT_STRING, FMTF_STRING); 480 default: 481 ofmt = 0; 482 break; 483 } 484 485 switch (*statfmt) { 486 fmtcase(hilo, HIGH_PIECE); 487 fmtcase(hilo, MIDDLE_PIECE); 488 fmtcase(hilo, LOW_PIECE); 489 default: 490 hilo = 0; 491 break; 492 } 493 494 switch (*statfmt) { 495 fmtcase(what, SHOW_st_dev); 496 fmtcase(what, SHOW_st_ino); 497 fmtcase(what, SHOW_st_mode); 498 fmtcase(what, SHOW_st_nlink); 499 fmtcase(what, SHOW_st_uid); 500 fmtcase(what, SHOW_st_gid); 501 fmtcase(what, SHOW_st_rdev); 502 fmtcase(what, SHOW_st_atime); 503 fmtcase(what, SHOW_st_mtime); 504 fmtcase(what, SHOW_st_ctime); 505 fmtcase(what, SHOW_st_btime); 506 fmtcase(what, SHOW_st_size); 507 fmtcase(what, SHOW_st_blocks); 508 fmtcase(what, SHOW_st_blksize); 509 fmtcase(what, SHOW_st_flags); 510 fmtcase(what, SHOW_st_gen); 511 fmtcase(what, SHOW_symlink); 512 fmtcase(what, SHOW_filetype); 513 fmtcase(what, SHOW_filename); 514 fmtcase(what, SHOW_sizerdev); 515 default: 516 goto badfmt; 517 } 518 #undef fmtcasef 519 #undef fmtcase 520 521 t = format1(st, 522 file, 523 subfmt, statfmt - subfmt, 524 buf, sizeof(buf), 525 flags, size, prec, ofmt, hilo, what); 526 527 for (i = 0; i < t && i < sizeof(buf); i++) 528 addchar(stdout, buf[i], &nl); 529 530 continue; 531 532 badfmt: 533 errx(1, "%.*s: bad format", 534 (int)(statfmt - subfmt + 1), subfmt); 535 } 536 537 if (!nl && !nonl) 538 (void)fputc('\n', stdout); 539 (void)fflush(stdout); 540 } 541 542 /* 543 * Arranges output according to a single parsed format substring. 544 */ 545 int 546 format1(const struct stat *st, 547 const char *file, 548 const char *fmt, int flen, 549 char *buf, size_t blen, 550 int flags, int size, int prec, int ofmt, 551 int hilo, int what) 552 { 553 u_int64_t data; 554 char *sdata, lfmt[24], tmp[20]; 555 char smode[12], sid[12], path[PATH_MAX + 4]; 556 struct passwd *pw; 557 struct group *gr; 558 struct tm *tm; 559 time_t secs; 560 long nsecs; 561 int l, small, formats, gottime; 562 563 formats = 0; 564 small = 0; 565 gottime = 0; 566 secs = 0; 567 nsecs = 0; 568 569 /* 570 * First, pick out the data and tweak it based on hilo or 571 * specified output format (symlink output only). 572 */ 573 switch (what) { 574 case SHOW_st_dev: 575 case SHOW_st_rdev: 576 small = (sizeof(st->st_dev) == 4); 577 data = (what == SHOW_st_dev) ? st->st_dev : st->st_rdev; 578 #if HAVE_DEVNAME 579 sdata = (what == SHOW_st_dev) ? 580 devname(st->st_dev, S_IFBLK) : 581 devname(st->st_rdev, 582 S_ISCHR(st->st_mode) ? S_IFCHR : 583 S_ISBLK(st->st_mode) ? S_IFBLK : 584 0U); 585 if (sdata == NULL) 586 sdata = "???"; 587 #endif /* HAVE_DEVNAME */ 588 if (hilo == HIGH_PIECE) { 589 data = major(data); 590 hilo = 0; 591 } 592 else if (hilo == LOW_PIECE) { 593 data = minor((unsigned)data); 594 hilo = 0; 595 } 596 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 597 #if HAVE_DEVNAME 598 FMTF_STRING; 599 #else /* HAVE_DEVNAME */ 600 0; 601 #endif /* HAVE_DEVNAME */ 602 if (ofmt == 0) 603 ofmt = FMTF_UNSIGNED; 604 break; 605 case SHOW_st_ino: 606 small = (sizeof(st->st_ino) == 4); 607 data = st->st_ino; 608 sdata = NULL; 609 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 610 if (ofmt == 0) 611 ofmt = FMTF_UNSIGNED; 612 break; 613 case SHOW_st_mode: 614 small = (sizeof(st->st_mode) == 4); 615 data = st->st_mode; 616 strmode(st->st_mode, smode); 617 sdata = smode; 618 l = strlen(sdata); 619 if (sdata[l - 1] == ' ') 620 sdata[--l] = '\0'; 621 if (hilo == HIGH_PIECE) { 622 data >>= 12; 623 sdata += 1; 624 sdata[3] = '\0'; 625 hilo = 0; 626 } 627 else if (hilo == MIDDLE_PIECE) { 628 data = (data >> 9) & 07; 629 sdata += 4; 630 sdata[3] = '\0'; 631 hilo = 0; 632 } 633 else if (hilo == LOW_PIECE) { 634 data &= 0777; 635 sdata += 7; 636 sdata[3] = '\0'; 637 hilo = 0; 638 } 639 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 640 FMTF_STRING; 641 if (ofmt == 0) 642 ofmt = FMTF_OCTAL; 643 break; 644 case SHOW_st_nlink: 645 small = (sizeof(st->st_dev) == 4); 646 data = st->st_nlink; 647 sdata = NULL; 648 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 649 if (ofmt == 0) 650 ofmt = FMTF_UNSIGNED; 651 break; 652 case SHOW_st_uid: 653 small = (sizeof(st->st_uid) == 4); 654 data = st->st_uid; 655 if ((pw = getpwuid(st->st_uid)) != NULL) 656 sdata = pw->pw_name; 657 else { 658 snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_uid); 659 sdata = sid; 660 } 661 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 662 FMTF_STRING; 663 if (ofmt == 0) 664 ofmt = FMTF_UNSIGNED; 665 break; 666 case SHOW_st_gid: 667 small = (sizeof(st->st_gid) == 4); 668 data = st->st_gid; 669 if ((gr = getgrgid(st->st_gid)) != NULL) 670 sdata = gr->gr_name; 671 else { 672 snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_gid); 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_atime: 681 gottime = 1; 682 secs = st->st_atime; 683 #if HAVE_STRUCT_STAT_ST_MTIMENSEC 684 nsecs = st->st_atimensec; 685 #endif 686 /* FALLTHROUGH */ 687 case SHOW_st_mtime: 688 if (!gottime) { 689 gottime = 1; 690 secs = st->st_mtime; 691 #if HAVE_STRUCT_STAT_ST_MTIMENSEC 692 nsecs = st->st_mtimensec; 693 #endif 694 } 695 /* FALLTHROUGH */ 696 case SHOW_st_ctime: 697 if (!gottime) { 698 gottime = 1; 699 secs = st->st_ctime; 700 #if HAVE_STRUCT_STAT_ST_MTIMENSEC 701 nsecs = st->st_ctimensec; 702 #endif 703 } 704 /* FALLTHROUGH */ 705 #if HAVE_STRUCT_STAT_ST_BIRTHTIME 706 case SHOW_st_btime: 707 if (!gottime) { 708 gottime = 1; 709 secs = st->st_birthtime; 710 nsecs = st->st_birthtimensec; 711 } 712 #endif /* HAVE_STRUCT_STAT_ST_BIRTHTIME */ 713 small = (sizeof(secs) == 4); 714 data = secs; 715 small = 1; 716 tm = localtime(&secs); 717 (void)strftime(path, sizeof(path), timefmt, tm); 718 sdata = path; 719 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 720 FMTF_FLOAT | FMTF_STRING; 721 if (ofmt == 0) 722 ofmt = FMTF_DECIMAL; 723 break; 724 case SHOW_st_size: 725 small = (sizeof(st->st_size) == 4); 726 data = st->st_size; 727 sdata = NULL; 728 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 729 if (ofmt == 0) 730 ofmt = FMTF_UNSIGNED; 731 break; 732 case SHOW_st_blocks: 733 small = (sizeof(st->st_blocks) == 4); 734 data = st->st_blocks; 735 sdata = NULL; 736 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 737 if (ofmt == 0) 738 ofmt = FMTF_UNSIGNED; 739 break; 740 case SHOW_st_blksize: 741 small = (sizeof(st->st_blksize) == 4); 742 data = st->st_blksize; 743 sdata = NULL; 744 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 745 if (ofmt == 0) 746 ofmt = FMTF_UNSIGNED; 747 break; 748 #if HAVE_STRUCT_STAT_ST_FLAGS 749 case SHOW_st_flags: 750 small = (sizeof(st->st_flags) == 4); 751 data = st->st_flags; 752 sdata = NULL; 753 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 754 if (ofmt == 0) 755 ofmt = FMTF_UNSIGNED; 756 break; 757 #endif /* HAVE_STRUCT_STAT_ST_FLAGS */ 758 #if HAVE_STRUCT_STAT_ST_GEN 759 case SHOW_st_gen: 760 small = (sizeof(st->st_gen) == 4); 761 data = st->st_gen; 762 sdata = NULL; 763 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 764 if (ofmt == 0) 765 ofmt = FMTF_UNSIGNED; 766 break; 767 #endif /* HAVE_STRUCT_STAT_ST_GEN */ 768 case SHOW_symlink: 769 small = 0; 770 data = 0; 771 if (S_ISLNK(st->st_mode)) { 772 snprintf(path, sizeof(path), " -> "); 773 l = readlink(file, path + 4, sizeof(path) - 4 - 1); 774 if (l == -1) { 775 linkfail = 1; 776 l = 0; 777 path[0] = '\0'; 778 } 779 path[l + 4] = '\0'; 780 sdata = path + (ofmt == FMTF_STRING ? 0 : 4); 781 } 782 else { 783 linkfail = 1; 784 sdata = ""; 785 } 786 formats = FMTF_STRING; 787 if (ofmt == 0) 788 ofmt = FMTF_STRING; 789 break; 790 case SHOW_filetype: 791 small = 0; 792 data = 0; 793 sdata = smode; 794 sdata[0] = '\0'; 795 if (hilo == 0 || hilo == LOW_PIECE) { 796 switch (st->st_mode & S_IFMT) { 797 case S_IFIFO: (void)strcat(sdata, "|"); break; 798 case S_IFDIR: (void)strcat(sdata, "/"); break; 799 case S_IFREG: 800 if (st->st_mode & 801 (S_IXUSR | S_IXGRP | S_IXOTH)) 802 (void)strcat(sdata, "*"); 803 break; 804 case S_IFLNK: (void)strcat(sdata, "@"); break; 805 #ifdef S_IFSOCK 806 case S_IFSOCK: (void)strcat(sdata, "="); break; 807 #endif 808 #ifdef S_IFWHT 809 case S_IFWHT: (void)strcat(sdata, "%"); break; 810 #endif /* S_IFWHT */ 811 #ifdef S_IFDOOR 812 case S_IFDOOR: (void)strcat(sdata, ">"); break; 813 #endif /* S_IFDOOR */ 814 } 815 hilo = 0; 816 } 817 else if (hilo == HIGH_PIECE) { 818 switch (st->st_mode & S_IFMT) { 819 case S_IFIFO: sdata = "Fifo File"; break; 820 case S_IFCHR: sdata = "Character Device"; break; 821 case S_IFDIR: sdata = "Directory"; break; 822 case S_IFBLK: sdata = "Block Device"; break; 823 case S_IFREG: sdata = "Regular File"; break; 824 case S_IFLNK: sdata = "Symbolic Link"; break; 825 #ifdef S_IFSOCK 826 case S_IFSOCK: sdata = "Socket"; break; 827 #endif 828 #ifdef S_IFWHT 829 case S_IFWHT: sdata = "Whiteout File"; break; 830 #endif /* S_IFWHT */ 831 #ifdef S_IFDOOR 832 case S_IFDOOR: sdata = "Door"; break; 833 #endif /* S_IFDOOR */ 834 default: sdata = "???"; break; 835 } 836 hilo = 0; 837 } 838 formats = FMTF_STRING; 839 if (ofmt == 0) 840 ofmt = FMTF_STRING; 841 break; 842 case SHOW_filename: 843 small = 0; 844 data = 0; 845 if (file == NULL) 846 (void)strncpy(path, "(stdin)", sizeof(path)); 847 else 848 (void)strncpy(path, file, sizeof(path)); 849 sdata = path; 850 formats = FMTF_STRING; 851 if (ofmt == 0) 852 ofmt = FMTF_STRING; 853 break; 854 case SHOW_sizerdev: 855 if (S_ISCHR(st->st_mode) || S_ISBLK(st->st_mode)) { 856 char majdev[20], mindev[20]; 857 int l1, l2; 858 859 l1 = format1(st, 860 file, 861 fmt, flen, 862 majdev, sizeof(majdev), 863 flags, size, prec, 864 ofmt, HIGH_PIECE, SHOW_st_rdev); 865 l2 = format1(st, 866 file, 867 fmt, flen, 868 mindev, sizeof(mindev), 869 flags, size, prec, 870 ofmt, LOW_PIECE, SHOW_st_rdev); 871 return (snprintf(buf, blen, "%.*s,%.*s", 872 l1, majdev, l2, mindev)); 873 } 874 else { 875 return (format1(st, 876 file, 877 fmt, flen, 878 buf, blen, 879 flags, size, prec, 880 ofmt, 0, SHOW_st_size)); 881 } 882 /*NOTREACHED*/ 883 default: 884 errx(1, "%.*s: bad format", (int)flen, fmt); 885 } 886 887 /* 888 * If a subdatum was specified but not supported, or an output 889 * format was selected that is not supported, that's an error. 890 */ 891 if (hilo != 0 || (ofmt & formats) == 0) 892 errx(1, "%.*s: bad format", (int)flen, fmt); 893 894 /* 895 * Assemble the format string for passing to printf(3). 896 */ 897 lfmt[0] = '\0'; 898 (void)strcat(lfmt, "%"); 899 if (flags & FLAG_POUND) 900 (void)strcat(lfmt, "#"); 901 if (flags & FLAG_SPACE) 902 (void)strcat(lfmt, " "); 903 if (flags & FLAG_PLUS) 904 (void)strcat(lfmt, "+"); 905 if (flags & FLAG_MINUS) 906 (void)strcat(lfmt, "-"); 907 if (flags & FLAG_ZERO) 908 (void)strcat(lfmt, "0"); 909 910 /* 911 * Only the timespecs support the FLOAT output format, and that 912 * requires work that differs from the other formats. 913 */ 914 if (ofmt == FMTF_FLOAT) { 915 /* 916 * Nothing after the decimal point, so just print seconds. 917 */ 918 if (prec == 0) { 919 if (size != -1) { 920 (void)snprintf(tmp, sizeof(tmp), "%d", size); 921 (void)strcat(lfmt, tmp); 922 } 923 (void)strcat(lfmt, "d"); 924 return (snprintf(buf, blen, lfmt, secs)); 925 } 926 927 /* 928 * Unspecified precision gets all the precision we have: 929 * 9 digits. 930 */ 931 if (prec == -1) 932 prec = 9; 933 934 /* 935 * Adjust the size for the decimal point and the digits 936 * that will follow. 937 */ 938 size -= prec + 1; 939 940 /* 941 * Any leftover size that's legitimate will be used. 942 */ 943 if (size > 0) { 944 (void)snprintf(tmp, sizeof(tmp), "%d", size); 945 (void)strcat(lfmt, tmp); 946 } 947 (void)strcat(lfmt, "d"); 948 949 /* 950 * The stuff after the decimal point always needs zero 951 * filling. 952 */ 953 (void)strcat(lfmt, ".%0"); 954 955 /* 956 * We can "print" at most nine digits of precision. The 957 * rest we will pad on at the end. 958 */ 959 (void)snprintf(tmp, sizeof(tmp), "%dd", prec > 9 ? 9 : prec); 960 (void)strcat(lfmt, tmp); 961 962 /* 963 * For precision of less that nine digits, trim off the 964 * less significant figures. 965 */ 966 for (; prec < 9; prec++) 967 nsecs /= 10; 968 969 /* 970 * Use the format, and then tack on any zeroes that 971 * might be required to make up the requested precision. 972 */ 973 l = snprintf(buf, blen, lfmt, secs, nsecs); 974 for (; prec > 9 && l < blen; prec--, l++) 975 (void)strcat(buf, "0"); 976 return (l); 977 } 978 979 /* 980 * Add on size and precision, if specified, to the format. 981 */ 982 if (size != -1) { 983 (void)snprintf(tmp, sizeof(tmp), "%d", size); 984 (void)strcat(lfmt, tmp); 985 } 986 if (prec != -1) { 987 (void)snprintf(tmp, sizeof(tmp), ".%d", prec); 988 (void)strcat(lfmt, tmp); 989 } 990 991 /* 992 * String output uses the temporary sdata. 993 */ 994 if (ofmt == FMTF_STRING) { 995 if (sdata == NULL) 996 errx(1, "%.*s: bad format", (int)flen, fmt); 997 (void)strcat(lfmt, "s"); 998 return (snprintf(buf, blen, lfmt, sdata)); 999 } 1000 1001 /* 1002 * Ensure that sign extension does not cause bad looking output 1003 * for some forms. 1004 */ 1005 if (small && ofmt != FMTF_DECIMAL) 1006 data = (u_int32_t)data; 1007 1008 /* 1009 * The four "numeric" output forms. 1010 */ 1011 (void)strcat(lfmt, "ll"); 1012 switch (ofmt) { 1013 case FMTF_DECIMAL: (void)strcat(lfmt, "d"); break; 1014 case FMTF_OCTAL: (void)strcat(lfmt, "o"); break; 1015 case FMTF_UNSIGNED: (void)strcat(lfmt, "u"); break; 1016 case FMTF_HEX: (void)strcat(lfmt, "x"); break; 1017 } 1018 1019 return (snprintf(buf, blen, lfmt, data)); 1020 } 1021
Indexes created Tue Sep 23 02:09:52 GMT 2025