stat.c revision 1.13
1 /* $NetBSD: stat.c,v 1.13 2003/07/25 03:21:17 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 #include <sys/cdefs.h> 40 #if defined(__RCSID) && !defined(lint) 41 __RCSID("$NetBSD: stat.c,v 1.13 2003/07/25 03:21:17 atatat Exp $"); 42 #endif 43 44 #if HAVE_CONFIG_H 45 #include "config.h" 46 #else /* HAVE_CONFIG_H */ 47 #define HAVE_STRUCT_STAT_ST_FLAGS 1 48 #define HAVE_STRUCT_STAT_ST_GEN 1 49 #define HAVE_STRUCT_STAT_ST_BIRTHTIME 1 50 #define HAVE_STRUCT_STAT_ST_MTIMENSEC 1 51 #define HAVE_DEVNAME 1 52 #endif /* HAVE_CONFIG_H */ 53 54 #include <sys/types.h> 55 #include <sys/stat.h> 56 57 #include <ctype.h> 58 #include <err.h> 59 #include <grp.h> 60 #include <limits.h> 61 #include <pwd.h> 62 #include <stdio.h> 63 #include <stdlib.h> 64 #include <string.h> 65 #include <time.h> 66 #include <unistd.h> 67 68 #if HAVE_STRUCT_STAT_ST_FLAGS 69 #define DEF_F "%#Xf " 70 #define RAW_F "%f " 71 #define SHELL_F " st_flags=%f" 72 #else /* HAVE_STRUCT_STAT_ST_FLAGS */ 73 #define DEF_F 74 #define RAW_F 75 #define SHELL_F 76 #endif /* HAVE_STRUCT_STAT_ST_FLAGS */ 77 78 #if HAVE_STRUCT_STAT_ST_BIRTHTIME 79 #define DEF_B "\"%SB\" " 80 #define RAW_B "%B " 81 #define SHELL_B "st_birthtime=%B " 82 #else /* HAVE_STRUCT_STAT_ST_BIRTHTIME */ 83 #define DEF_B 84 #define RAW_B 85 #define SHELL_B 86 #endif /* HAVE_STRUCT_STAT_ST_BIRTHTIME */ 87 88 #if HAVE_STRUCT_STAT_ST_ATIM 89 #define st_atimespec st_atim 90 #define st_ctimespec st_ctim 91 #define st_mtimespec st_mtim 92 #endif /* HAVE_STRUCT_STAT_ST_ATIM */ 93 94 #define DEF_FORMAT \ 95 "%d %i %Sp %l %Su %Sg %r %z \"%Sa\" \"%Sm\" \"%Sc\" " DEF_B \ 96 "%k %b " DEF_F "%N" 97 #define RAW_FORMAT "%d %i %#p %l %u %g %r %z %a %m %c " RAW_B \ 98 "%k %b " RAW_F "%N" 99 #define LS_FORMAT "%Sp %l %Su %Sg %Z %Sm %N%SY" 100 #define LSF_FORMAT "%Sp %l %Su %Sg %Z %Sm %N%T%SY" 101 #define SHELL_FORMAT \ 102 "st_dev=%d st_ino=%i st_mode=%#p st_nlink=%l " \ 103 "st_uid=%u st_gid=%g st_rdev=%r st_size=%z " \ 104 "st_atime=%a st_mtime=%m st_ctime=%c " SHELL_B \ 105 "st_blksize=%k st_blocks=%b" SHELL_F 106 #define LINUX_FORMAT \ 107 " File: \"%N\"%n" \ 108 " Size: %-11z FileType: %HT%n" \ 109 " Mode: (%04OLp/%.10Sp) Uid: (%5u/%8Su) Gid: (%5g/%8Sg)%n" \ 110 "Device: %Hd,%Ld Inode: %i Links: %l%n" \ 111 "Access: %Sa%n" \ 112 "Modify: %Sm%n" \ 113 "Change: %Sc" 114 115 #define TIME_FORMAT "%b %e %T %Y" 116 117 #define FLAG_POUND 0x01 118 #define FLAG_SPACE 0x02 119 #define FLAG_PLUS 0x04 120 #define FLAG_ZERO 0x08 121 #define FLAG_MINUS 0x10 122 123 /* 124 * These format characters must all be unique, except the magic one. 125 */ 126 #define FMT_MAGIC '%' 127 #define FMT_DOT '.' 128 129 #define SIMPLE_NEWLINE 'n' 130 #define SIMPLE_TAB 't' 131 #define SIMPLE_PERCENT '%' 132 #define SIMPLE_NUMBER '@' 133 134 #define FMT_POUND '#' 135 #define FMT_SPACE ' ' 136 #define FMT_PLUS '+' 137 #define FMT_ZERO '0' 138 #define FMT_MINUS '-' 139 140 #define FMT_DECIMAL 'D' 141 #define FMT_OCTAL 'O' 142 #define FMT_UNSIGNED 'U' 143 #define FMT_HEX 'X' 144 #define FMT_FLOAT 'F' 145 #define FMT_STRING 'S' 146 147 #define FMTF_DECIMAL 0x01 148 #define FMTF_OCTAL 0x02 149 #define FMTF_UNSIGNED 0x04 150 #define FMTF_HEX 0x08 151 #define FMTF_FLOAT 0x10 152 #define FMTF_STRING 0x20 153 154 #define HIGH_PIECE 'H' 155 #define MIDDLE_PIECE 'M' 156 #define LOW_PIECE 'L' 157 158 #define SHOW_st_dev 'd' 159 #define SHOW_st_ino 'i' 160 #define SHOW_st_mode 'p' 161 #define SHOW_st_nlink 'l' 162 #define SHOW_st_uid 'u' 163 #define SHOW_st_gid 'g' 164 #define SHOW_st_rdev 'r' 165 #define SHOW_st_atime 'a' 166 #define SHOW_st_mtime 'm' 167 #define SHOW_st_ctime 'c' 168 #define SHOW_st_btime 'B' 169 #define SHOW_st_size 'z' 170 #define SHOW_st_blocks 'b' 171 #define SHOW_st_blksize 'k' 172 #define SHOW_st_flags 'f' 173 #define SHOW_st_gen 'v' 174 #define SHOW_symlink 'Y' 175 #define SHOW_filetype 'T' 176 #define SHOW_filename 'N' 177 #define SHOW_sizerdev 'Z' 178 179 void usage(const char *); 180 void output(const struct stat *, const char *, 181 const char *, int, int, int); 182 int format1(const struct stat *, /* stat info */ 183 const char *, /* the file name */ 184 const char *, int, /* the format string itself */ 185 char *, size_t, /* a place to put the output */ 186 int, int, int, int, /* the parsed format */ 187 int, int); 188 189 char *timefmt; 190 int linkfail; 191 192 #define addchar(s, c, nl) \ 193 do { \ 194 (void)fputc((c), (s)); \ 195 (*nl) = ((c) == '\n'); \ 196 } while (0/*CONSTCOND*/) 197 198 int 199 main(int argc, char *argv[]) 200 { 201 struct stat st; 202 int ch, rc, errs, am_readlink; 203 int lsF, fmtchar, usestat, fn, nonl, quiet; 204 char *statfmt, *options, *synopsis; 205 206 am_readlink = 0; 207 lsF = 0; 208 fmtchar = '\0'; 209 usestat = 0; 210 nonl = 0; 211 quiet = 0; 212 linkfail = 0; 213 statfmt = NULL; 214 timefmt = NULL; 215 216 if (strcmp(getprogname(), "readlink") == 0) { 217 am_readlink = 1; 218 options = "n"; 219 synopsis = "[-n] [file ...]"; 220 statfmt = "%Y"; 221 fmtchar = 'f'; 222 quiet = 1; 223 } else { 224 options = "f:FlLnqrst:x"; 225 synopsis = "[-FlLnqrsx] [-f format] [-t timefmt] [file ...]"; 226 } 227 228 while ((ch = getopt(argc, argv, options)) != -1) 229 switch (ch) { 230 case 'F': 231 lsF = 1; 232 break; 233 case 'L': 234 usestat = 1; 235 break; 236 case 'n': 237 nonl = 1; 238 break; 239 case 'q': 240 quiet = 1; 241 break; 242 case 'f': 243 statfmt = optarg; 244 /* FALLTHROUGH */ 245 case 'l': 246 case 'r': 247 case 's': 248 case 'x': 249 if (fmtchar != 0) 250 errx(1, "can't use format '%c' with '%c'", 251 fmtchar, ch); 252 fmtchar = ch; 253 break; 254 case 't': 255 timefmt = optarg; 256 break; 257 default: 258 usage(synopsis); 259 } 260 261 argc -= optind; 262 argv += optind; 263 fn = 1; 264 265 if (fmtchar == '\0') { 266 if (lsF) 267 fmtchar = 'l'; 268 else { 269 fmtchar = 'f'; 270 statfmt = DEF_FORMAT; 271 } 272 } 273 274 if (lsF && fmtchar != 'l') 275 errx(1, "can't use format '%c' with -F", fmtchar); 276 277 switch (fmtchar) { 278 case 'f': 279 /* statfmt already set */ 280 break; 281 case 'l': 282 statfmt = lsF ? LSF_FORMAT : LS_FORMAT; 283 break; 284 case 'r': 285 statfmt = RAW_FORMAT; 286 break; 287 case 's': 288 statfmt = SHELL_FORMAT; 289 break; 290 case 'x': 291 statfmt = LINUX_FORMAT; 292 if (timefmt == NULL) 293 timefmt = "%c"; 294 break; 295 default: 296 usage(synopsis); 297 /*NOTREACHED*/ 298 } 299 300 if (timefmt == NULL) 301 timefmt = TIME_FORMAT; 302 303 errs = 0; 304 do { 305 if (argc == 0) 306 rc = fstat(STDIN_FILENO, &st); 307 else if (usestat) 308 rc = stat(argv[0], &st); 309 else 310 rc = lstat(argv[0], &st); 311 312 if (rc == -1) { 313 errs = 1; 314 linkfail = 1; 315 if (!quiet) 316 warn("%s: stat", 317 argc == 0 ? "(stdin)" : argv[0]); 318 } 319 else 320 output(&st, argv[0], statfmt, fn, nonl, quiet); 321 322 argv++; 323 argc--; 324 fn++; 325 } while (argc > 0); 326 327 return (am_readlink ? linkfail : errs); 328 } 329 330 void 331 usage(const char *synopsis) 332 { 333 334 (void)fprintf(stderr, "usage: %s %s\n", getprogname(), synopsis); 335 exit(1); 336 } 337 338 /* 339 * Parses a format string. 340 */ 341 void 342 output(const struct stat *st, const char *file, 343 const char *statfmt, int fn, int nonl, int quiet) 344 { 345 int flags, size, prec, ofmt, hilo, what; 346 char buf[PATH_MAX]; 347 const char *subfmt; 348 int nl, t, i; 349 350 nl = 1; 351 while (*statfmt != '\0') { 352 353 /* 354 * Non-format characters go straight out. 355 */ 356 if (*statfmt != FMT_MAGIC) { 357 addchar(stdout, *statfmt, &nl); 358 statfmt++; 359 continue; 360 } 361 362 /* 363 * The current format "substring" starts here, 364 * and then we skip the magic. 365 */ 366 subfmt = statfmt; 367 statfmt++; 368 369 /* 370 * Some simple one-character "formats". 371 */ 372 switch (*statfmt) { 373 case SIMPLE_NEWLINE: 374 addchar(stdout, '\n', &nl); 375 statfmt++; 376 continue; 377 case SIMPLE_TAB: 378 addchar(stdout, '\t', &nl); 379 statfmt++; 380 continue; 381 case SIMPLE_PERCENT: 382 addchar(stdout, '%', &nl); 383 statfmt++; 384 continue; 385 case SIMPLE_NUMBER: { 386 char num[12], *p; 387 388 snprintf(num, sizeof(num), "%d", fn); 389 for (p = &num[0]; *p; p++) 390 addchar(stdout, *p, &nl); 391 statfmt++; 392 continue; 393 } 394 } 395 396 /* 397 * This must be an actual format string. Format strings are 398 * similar to printf(3) formats up to a point, and are of 399 * the form: 400 * 401 * % required start of format 402 * [-# +0] opt. format characters 403 * size opt. field width 404 * . opt. decimal separator, followed by 405 * prec opt. precision 406 * fmt opt. output specifier (string, numeric, etc.) 407 * sub opt. sub field specifier (high, middle, low) 408 * datum required field specifier (size, mode, etc) 409 * 410 * Only the % and the datum selector are required. All data 411 * have reasonable default output forms. The "sub" specifier 412 * only applies to certain data (mode, dev, rdev, filetype). 413 * The symlink output defaults to STRING, yet will only emit 414 * the leading " -> " if STRING is explicitly specified. The 415 * sizerdev datum will generate rdev output for character or 416 * block devices, and size output for all others. 417 */ 418 flags = 0; 419 do { 420 if (*statfmt == FMT_POUND) 421 flags |= FLAG_POUND; 422 else if (*statfmt == FMT_SPACE) 423 flags |= FLAG_SPACE; 424 else if (*statfmt == FMT_PLUS) 425 flags |= FLAG_PLUS; 426 else if (*statfmt == FMT_ZERO) 427 flags |= FLAG_ZERO; 428 else if (*statfmt == FMT_MINUS) 429 flags |= FLAG_MINUS; 430 else 431 break; 432 statfmt++; 433 } while (1/*CONSTCOND*/); 434 435 size = -1; 436 if (isdigit((unsigned)*statfmt)) { 437 size = 0; 438 while (isdigit((unsigned)*statfmt)) { 439 size = (size * 10) + (*statfmt - '0'); 440 statfmt++; 441 if (size < 0) 442 goto badfmt; 443 } 444 } 445 446 prec = -1; 447 if (*statfmt == FMT_DOT) { 448 statfmt++; 449 450 prec = 0; 451 while (isdigit((unsigned)*statfmt)) { 452 prec = (prec * 10) + (*statfmt - '0'); 453 statfmt++; 454 if (prec < 0) 455 goto badfmt; 456 } 457 } 458 459 #define fmtcase(x, y) case (y): (x) = (y); statfmt++; break 460 #define fmtcasef(x, y, z) case (y): (x) = (z); statfmt++; break 461 switch (*statfmt) { 462 fmtcasef(ofmt, FMT_DECIMAL, FMTF_DECIMAL); 463 fmtcasef(ofmt, FMT_OCTAL, FMTF_OCTAL); 464 fmtcasef(ofmt, FMT_UNSIGNED, FMTF_UNSIGNED); 465 fmtcasef(ofmt, FMT_HEX, FMTF_HEX); 466 fmtcasef(ofmt, FMT_FLOAT, FMTF_FLOAT); 467 fmtcasef(ofmt, FMT_STRING, FMTF_STRING); 468 default: 469 ofmt = 0; 470 break; 471 } 472 473 switch (*statfmt) { 474 fmtcase(hilo, HIGH_PIECE); 475 fmtcase(hilo, MIDDLE_PIECE); 476 fmtcase(hilo, LOW_PIECE); 477 default: 478 hilo = 0; 479 break; 480 } 481 482 switch (*statfmt) { 483 fmtcase(what, SHOW_st_dev); 484 fmtcase(what, SHOW_st_ino); 485 fmtcase(what, SHOW_st_mode); 486 fmtcase(what, SHOW_st_nlink); 487 fmtcase(what, SHOW_st_uid); 488 fmtcase(what, SHOW_st_gid); 489 fmtcase(what, SHOW_st_rdev); 490 fmtcase(what, SHOW_st_atime); 491 fmtcase(what, SHOW_st_mtime); 492 fmtcase(what, SHOW_st_ctime); 493 fmtcase(what, SHOW_st_btime); 494 fmtcase(what, SHOW_st_size); 495 fmtcase(what, SHOW_st_blocks); 496 fmtcase(what, SHOW_st_blksize); 497 fmtcase(what, SHOW_st_flags); 498 fmtcase(what, SHOW_st_gen); 499 fmtcase(what, SHOW_symlink); 500 fmtcase(what, SHOW_filetype); 501 fmtcase(what, SHOW_filename); 502 fmtcase(what, SHOW_sizerdev); 503 default: 504 goto badfmt; 505 } 506 #undef fmtcasef 507 #undef fmtcase 508 509 t = format1(st, 510 file, 511 subfmt, statfmt - subfmt, 512 buf, sizeof(buf), 513 flags, size, prec, ofmt, hilo, what); 514 515 for (i = 0; i < t && i < sizeof(buf); i++) 516 addchar(stdout, buf[i], &nl); 517 518 continue; 519 520 badfmt: 521 errx(1, "%.*s: bad format", 522 (int)(statfmt - subfmt + 1), subfmt); 523 } 524 525 if (!nl && !nonl) 526 (void)fputc('\n', stdout); 527 (void)fflush(stdout); 528 } 529 530 /* 531 * Arranges output according to a single parsed format substring. 532 */ 533 int 534 format1(const struct stat *st, 535 const char *file, 536 const char *fmt, int flen, 537 char *buf, size_t blen, 538 int flags, int size, int prec, int ofmt, 539 int hilo, int what) 540 { 541 u_int64_t data; 542 char *sdata, lfmt[24], tmp[20]; 543 char smode[12], sid[12], path[PATH_MAX + 4]; 544 struct passwd *pw; 545 struct group *gr; 546 const struct timespec *tsp; 547 struct timespec ts; 548 struct tm *tm; 549 int l, small, formats; 550 551 tsp = NULL; 552 formats = 0; 553 small = 0; 554 555 /* 556 * First, pick out the data and tweak it based on hilo or 557 * specified output format (symlink output only). 558 */ 559 switch (what) { 560 case SHOW_st_dev: 561 case SHOW_st_rdev: 562 small = (sizeof(st->st_dev) == 4); 563 data = (what == SHOW_st_dev) ? st->st_dev : st->st_rdev; 564 #if HAVE_DEVNAME 565 sdata = (what == SHOW_st_dev) ? 566 devname(st->st_dev, S_IFBLK) : 567 devname(st->st_rdev, 568 S_ISCHR(st->st_mode) ? S_IFCHR : 569 S_ISBLK(st->st_mode) ? S_IFBLK : 570 0U); 571 if (sdata == NULL) 572 sdata = "???"; 573 #endif /* HAVE_DEVNAME */ 574 if (hilo == HIGH_PIECE) { 575 data = major(data); 576 hilo = 0; 577 } 578 else if (hilo == LOW_PIECE) { 579 data = minor((unsigned)data); 580 hilo = 0; 581 } 582 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 583 #if HAVE_DEVNAME 584 FMTF_STRING; 585 #else /* HAVE_DEVNAME */ 586 0; 587 #endif /* HAVE_DEVNAME */ 588 if (ofmt == 0) 589 ofmt = FMTF_UNSIGNED; 590 break; 591 case SHOW_st_ino: 592 small = (sizeof(st->st_ino) == 4); 593 data = st->st_ino; 594 sdata = NULL; 595 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 596 if (ofmt == 0) 597 ofmt = FMTF_UNSIGNED; 598 break; 599 case SHOW_st_mode: 600 small = (sizeof(st->st_mode) == 4); 601 data = st->st_mode; 602 strmode(st->st_mode, smode); 603 sdata = smode; 604 l = strlen(sdata); 605 if (sdata[l - 1] == ' ') 606 sdata[--l] = '\0'; 607 if (hilo == HIGH_PIECE) { 608 data >>= 12; 609 sdata += 1; 610 sdata[3] = '\0'; 611 hilo = 0; 612 } 613 else if (hilo == MIDDLE_PIECE) { 614 data = (data >> 9) & 07; 615 sdata += 4; 616 sdata[3] = '\0'; 617 hilo = 0; 618 } 619 else if (hilo == LOW_PIECE) { 620 data &= 0777; 621 sdata += 7; 622 sdata[3] = '\0'; 623 hilo = 0; 624 } 625 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 626 FMTF_STRING; 627 if (ofmt == 0) 628 ofmt = FMTF_OCTAL; 629 break; 630 case SHOW_st_nlink: 631 small = (sizeof(st->st_dev) == 4); 632 data = st->st_nlink; 633 sdata = NULL; 634 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 635 if (ofmt == 0) 636 ofmt = FMTF_UNSIGNED; 637 break; 638 case SHOW_st_uid: 639 small = (sizeof(st->st_uid) == 4); 640 data = st->st_uid; 641 if ((pw = getpwuid(st->st_uid)) != NULL) 642 sdata = pw->pw_name; 643 else { 644 snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_uid); 645 sdata = sid; 646 } 647 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 648 FMTF_STRING; 649 if (ofmt == 0) 650 ofmt = FMTF_UNSIGNED; 651 break; 652 case SHOW_st_gid: 653 small = (sizeof(st->st_gid) == 4); 654 data = st->st_gid; 655 if ((gr = getgrgid(st->st_gid)) != NULL) 656 sdata = gr->gr_name; 657 else { 658 snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_gid); 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_atime: 667 tsp = &st->st_atimespec; 668 /* FALLTHROUGH */ 669 case SHOW_st_mtime: 670 if (tsp == NULL) 671 tsp = &st->st_mtimespec; 672 /* FALLTHROUGH */ 673 case SHOW_st_ctime: 674 if (tsp == NULL) 675 tsp = &st->st_ctimespec; 676 /* FALLTHROUGH */ 677 #if HAVE_STRUCT_STAT_ST_BIRTHTIME 678 case SHOW_st_btime: 679 if (tsp == NULL) 680 tsp = &st->st_birthtimespec; 681 #endif /* HAVE_STRUCT_STAT_ST_BIRTHTIME */ 682 ts = *tsp; /* copy so we can muck with it */ 683 small = (sizeof(ts.tv_sec) == 4); 684 data = ts.tv_sec; 685 small = 1; 686 tm = localtime(&ts.tv_sec); 687 (void)strftime(path, sizeof(path), timefmt, tm); 688 sdata = path; 689 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 690 FMTF_FLOAT | FMTF_STRING; 691 if (ofmt == 0) 692 ofmt = FMTF_DECIMAL; 693 break; 694 case SHOW_st_size: 695 small = (sizeof(st->st_size) == 4); 696 data = st->st_size; 697 sdata = NULL; 698 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 699 if (ofmt == 0) 700 ofmt = FMTF_UNSIGNED; 701 break; 702 case SHOW_st_blocks: 703 small = (sizeof(st->st_blocks) == 4); 704 data = st->st_blocks; 705 sdata = NULL; 706 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 707 if (ofmt == 0) 708 ofmt = FMTF_UNSIGNED; 709 break; 710 case SHOW_st_blksize: 711 small = (sizeof(st->st_blksize) == 4); 712 data = st->st_blksize; 713 sdata = NULL; 714 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 715 if (ofmt == 0) 716 ofmt = FMTF_UNSIGNED; 717 break; 718 #if HAVE_STRUCT_STAT_ST_FLAGS 719 case SHOW_st_flags: 720 small = (sizeof(st->st_flags) == 4); 721 data = st->st_flags; 722 sdata = NULL; 723 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 724 if (ofmt == 0) 725 ofmt = FMTF_UNSIGNED; 726 break; 727 #endif /* HAVE_STRUCT_STAT_ST_FLAGS */ 728 #if HAVE_STRUCT_STAT_ST_GEN 729 case SHOW_st_gen: 730 small = (sizeof(st->st_gen) == 4); 731 data = st->st_gen; 732 sdata = NULL; 733 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 734 if (ofmt == 0) 735 ofmt = FMTF_UNSIGNED; 736 break; 737 #endif /* HAVE_STRUCT_STAT_ST_GEN */ 738 case SHOW_symlink: 739 small = 0; 740 data = 0; 741 if (S_ISLNK(st->st_mode)) { 742 snprintf(path, sizeof(path), " -> "); 743 l = readlink(file, path + 4, sizeof(path) - 4 - 1); 744 if (l == -1) { 745 linkfail = 1; 746 l = 0; 747 path[0] = '\0'; 748 } 749 path[l + 4] = '\0'; 750 sdata = path + (ofmt == FMTF_STRING ? 0 : 4); 751 } 752 else { 753 linkfail = 1; 754 sdata = ""; 755 } 756 formats = FMTF_STRING; 757 if (ofmt == 0) 758 ofmt = FMTF_STRING; 759 break; 760 case SHOW_filetype: 761 small = 0; 762 data = 0; 763 sdata = smode; 764 sdata[0] = '\0'; 765 if (hilo == 0 || hilo == LOW_PIECE) { 766 switch (st->st_mode & S_IFMT) { 767 case S_IFIFO: (void)strcat(sdata, "|"); break; 768 case S_IFDIR: (void)strcat(sdata, "/"); break; 769 case S_IFREG: 770 if (st->st_mode & 771 (S_IXUSR | S_IXGRP | S_IXOTH)) 772 (void)strcat(sdata, "*"); 773 break; 774 case S_IFLNK: (void)strcat(sdata, "@"); break; 775 case S_IFSOCK: (void)strcat(sdata, "="); break; 776 #ifdef S_IFWHT 777 case S_IFWHT: (void)strcat(sdata, "%"); break; 778 #endif /* S_IFWHT */ 779 #ifdef S_IFDOOR 780 case S_IFDOOR: (void)strcat(sdata, ">"); break; 781 #endif /* S_IFDOOR */ 782 } 783 hilo = 0; 784 } 785 else if (hilo == HIGH_PIECE) { 786 switch (st->st_mode & S_IFMT) { 787 case S_IFIFO: sdata = "Fifo File"; break; 788 case S_IFCHR: sdata = "Character Device"; break; 789 case S_IFDIR: sdata = "Directory"; break; 790 case S_IFBLK: sdata = "Block Device"; break; 791 case S_IFREG: sdata = "Regular File"; break; 792 case S_IFLNK: sdata = "Symbolic Link"; break; 793 case S_IFSOCK: sdata = "Socket"; break; 794 #ifdef S_IFWHT 795 case S_IFWHT: sdata = "Whiteout File"; break; 796 #endif /* S_IFWHT */ 797 #ifdef S_IFDOOR 798 case S_IFDOOR: sdata = "Door"; break; 799 #endif /* S_IFDOOR */ 800 default: sdata = "???"; break; 801 } 802 hilo = 0; 803 } 804 formats = FMTF_STRING; 805 if (ofmt == 0) 806 ofmt = FMTF_STRING; 807 break; 808 case SHOW_filename: 809 small = 0; 810 data = 0; 811 if (file == NULL) 812 (void)strncpy(path, "(stdin)", sizeof(path)); 813 else 814 (void)strncpy(path, file, sizeof(path)); 815 sdata = path; 816 formats = FMTF_STRING; 817 if (ofmt == 0) 818 ofmt = FMTF_STRING; 819 break; 820 case SHOW_sizerdev: 821 if (S_ISCHR(st->st_mode) || S_ISBLK(st->st_mode)) { 822 char majdev[20], mindev[20]; 823 int l1, l2; 824 825 l1 = format1(st, 826 file, 827 fmt, flen, 828 majdev, sizeof(majdev), 829 flags, size, prec, 830 ofmt, HIGH_PIECE, SHOW_st_rdev); 831 l2 = format1(st, 832 file, 833 fmt, flen, 834 mindev, sizeof(mindev), 835 flags, size, prec, 836 ofmt, LOW_PIECE, SHOW_st_rdev); 837 return (snprintf(buf, blen, "%.*s,%.*s", 838 l1, majdev, l2, mindev)); 839 } 840 else { 841 return (format1(st, 842 file, 843 fmt, flen, 844 buf, blen, 845 flags, size, prec, 846 ofmt, 0, SHOW_st_size)); 847 } 848 /*NOTREACHED*/ 849 default: 850 errx(1, "%.*s: bad format", (int)flen, fmt); 851 } 852 853 /* 854 * If a subdatum was specified but not supported, or an output 855 * format was selected that is not supported, that's an error. 856 */ 857 if (hilo != 0 || (ofmt & formats) == 0) 858 errx(1, "%.*s: bad format", (int)flen, fmt); 859 860 /* 861 * Assemble the format string for passing to printf(3). 862 */ 863 lfmt[0] = '\0'; 864 (void)strcat(lfmt, "%"); 865 if (flags & FLAG_POUND) 866 (void)strcat(lfmt, "#"); 867 if (flags & FLAG_SPACE) 868 (void)strcat(lfmt, " "); 869 if (flags & FLAG_PLUS) 870 (void)strcat(lfmt, "+"); 871 if (flags & FLAG_MINUS) 872 (void)strcat(lfmt, "-"); 873 if (flags & FLAG_ZERO) 874 (void)strcat(lfmt, "0"); 875 876 /* 877 * Only the timespecs support the FLOAT output format, and that 878 * requires work that differs from the other formats. 879 */ 880 if (ofmt == FMTF_FLOAT) { 881 /* 882 * Nothing after the decimal point, so just print seconds. 883 */ 884 if (prec == 0) { 885 if (size != -1) { 886 (void)snprintf(tmp, sizeof(tmp), "%d", size); 887 (void)strcat(lfmt, tmp); 888 } 889 (void)strcat(lfmt, "d"); 890 return (snprintf(buf, blen, lfmt, ts.tv_sec)); 891 } 892 893 /* 894 * Unspecified precision gets all the precision we have: 895 * 9 digits. 896 */ 897 if (prec == -1) 898 prec = 9; 899 900 /* 901 * Adjust the size for the decimal point and the digits 902 * that will follow. 903 */ 904 size -= prec + 1; 905 906 /* 907 * Any leftover size that's legitimate will be used. 908 */ 909 if (size > 0) { 910 (void)snprintf(tmp, sizeof(tmp), "%d", size); 911 (void)strcat(lfmt, tmp); 912 } 913 (void)strcat(lfmt, "d"); 914 915 /* 916 * The stuff after the decimal point always needs zero 917 * filling. 918 */ 919 (void)strcat(lfmt, ".%0"); 920 921 /* 922 * We can "print" at most nine digits of precision. The 923 * rest we will pad on at the end. 924 */ 925 (void)snprintf(tmp, sizeof(tmp), "%dd", prec > 9 ? 9 : prec); 926 (void)strcat(lfmt, tmp); 927 928 /* 929 * For precision of less that nine digits, trim off the 930 * less significant figures. 931 */ 932 for (; prec < 9; prec++) 933 ts.tv_nsec /= 10; 934 935 /* 936 * Use the format, and then tack on any zeroes that 937 * might be required to make up the requested precision. 938 */ 939 l = snprintf(buf, blen, lfmt, ts.tv_sec, ts.tv_nsec); 940 for (; prec > 9 && l < blen; prec--, l++) 941 (void)strcat(buf, "0"); 942 return (l); 943 } 944 945 /* 946 * Add on size and precision, if specified, to the format. 947 */ 948 if (size != -1) { 949 (void)snprintf(tmp, sizeof(tmp), "%d", size); 950 (void)strcat(lfmt, tmp); 951 } 952 if (prec != -1) { 953 (void)snprintf(tmp, sizeof(tmp), ".%d", prec); 954 (void)strcat(lfmt, tmp); 955 } 956 957 /* 958 * String output uses the temporary sdata. 959 */ 960 if (ofmt == FMTF_STRING) { 961 if (sdata == NULL) 962 errx(1, "%.*s: bad format", (int)flen, fmt); 963 (void)strcat(lfmt, "s"); 964 return (snprintf(buf, blen, lfmt, sdata)); 965 } 966 967 /* 968 * Ensure that sign extension does not cause bad looking output 969 * for some forms. 970 */ 971 if (small && ofmt != FMTF_DECIMAL) 972 data = (u_int32_t)data; 973 974 /* 975 * The four "numeric" output forms. 976 */ 977 (void)strcat(lfmt, "ll"); 978 switch (ofmt) { 979 case FMTF_DECIMAL: (void)strcat(lfmt, "d"); break; 980 case FMTF_OCTAL: (void)strcat(lfmt, "o"); break; 981 case FMTF_UNSIGNED: (void)strcat(lfmt, "u"); break; 982 case FMTF_HEX: (void)strcat(lfmt, "x"); break; 983 } 984 985 return (snprintf(buf, blen, lfmt, data)); 986 } 987
Indexes created Mon Sep 22 21:09:42 GMT 2025