1 /* 2 * Copyright (c) 2002 The NetBSD Foundation, Inc. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to The NetBSD Foundation 6 * by Andrew Brown. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the NetBSD 19 * Foundation, Inc. and its contributors. 20 * 4. Neither the name of The NetBSD Foundation nor the names of its 21 * contributors may be used to endorse or promote products derived 22 * from this software without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 25 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 26 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 27 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 28 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 34 * POSSIBILITY OF SUCH DAMAGE. 35 * 36 * $NetBSD: stat.c,v 1.13 2003/07/25 03:21:17 atatat Exp $ 37 * $FreeBSD: src/usr.bin/stat/stat.c,v 1.6 2003/10/06 01:55:17 dougb Exp $ 38 */ 39 40 #if HAVE_CONFIG_H 41 #include "config.h" 42 #else /* HAVE_CONFIG_H */ 43 #define HAVE_STRUCT_STAT_ST_FLAGS 1 44 #define HAVE_STRUCT_STAT_ST_GEN 1 45 #define HAVE_STRUCT_STAT_ST_BIRTHTIME 0 46 #define HAVE_STRUCT_STAT_ST_MTIMENSEC 1 47 #define HAVE_DEVNAME 1 48 #endif /* HAVE_CONFIG_H */ 49 50 #include <sys/types.h> 51 #include <sys/stat.h> 52 53 #include <ctype.h> 54 #include <err.h> 55 #include <grp.h> 56 #include <limits.h> 57 #include <pwd.h> 58 #include <stdio.h> 59 #include <stdlib.h> 60 #include <string.h> 61 #include <time.h> 62 #include <unistd.h> 63 64 #if HAVE_STRUCT_STAT_ST_FLAGS 65 #define DEF_F "%#Xf " 66 #define RAW_F "%f " 67 #define SHELL_F " st_flags=%f" 68 #else /* HAVE_STRUCT_STAT_ST_FLAGS */ 69 #define DEF_F 70 #define RAW_F 71 #define SHELL_F 72 #endif /* HAVE_STRUCT_STAT_ST_FLAGS */ 73 74 #if HAVE_STRUCT_STAT_ST_BIRTHTIME 75 #define DEF_B "\"%SB\" " 76 #define RAW_B "%B " 77 #define SHELL_B "st_birthtime=%B " 78 #else /* HAVE_STRUCT_STAT_ST_BIRTHTIME */ 79 #define DEF_B 80 #define RAW_B 81 #define SHELL_B 82 #endif /* HAVE_STRUCT_STAT_ST_BIRTHTIME */ 83 84 #if HAVE_STRUCT_STAT_ST_ATIM 85 #define st_atimespec st_atim 86 #define st_ctimespec st_ctim 87 #define st_mtimespec st_mtim 88 #endif /* HAVE_STRUCT_STAT_ST_ATIM */ 89 90 #define DEF_FORMAT \ 91 "%d %i %Sp %l %Su %Sg %r %z \"%Sa\" \"%Sm\" \"%Sc\" " DEF_B \ 92 "%k %b " DEF_F "%N" 93 #define RAW_FORMAT "%d %i %#p %l %u %g %r %z %a %m %c " RAW_B \ 94 "%k %b " RAW_F "%N" 95 #define LS_FORMAT "%Sp %l %Su %Sg %Z %Sm %N%SY" 96 #define LSF_FORMAT "%Sp %l %Su %Sg %Z %Sm %N%T%SY" 97 #define SHELL_FORMAT \ 98 "st_dev=%d st_ino=%i st_mode=%#p st_nlink=%l " \ 99 "st_uid=%u st_gid=%g st_rdev=%r st_size=%z " \ 100 "st_atime=%a st_mtime=%m st_ctime=%c " SHELL_B \ 101 "st_blksize=%k st_blocks=%b" SHELL_F 102 #define LINUX_FORMAT \ 103 " File: \"%N\"%n" \ 104 " Size: %-11z FileType: %HT%n" \ 105 " Mode: (%04OLp/%.10Sp) Uid: (%5u/%8Su) Gid: (%5g/%8Sg)%n" \ 106 "Device: %Hd,%Ld Inode: %i Links: %l%n" \ 107 "Access: %Sa%n" \ 108 "Modify: %Sm%n" \ 109 "Change: %Sc" 110 111 #define TIME_FORMAT "%b %e %T %Y" 112 113 #define FLAG_POUND 0x01 114 #define FLAG_SPACE 0x02 115 #define FLAG_PLUS 0x04 116 #define FLAG_ZERO 0x08 117 #define FLAG_MINUS 0x10 118 119 /* 120 * These format characters must all be unique, except the magic one. 121 */ 122 #define FMT_MAGIC '%' 123 #define FMT_DOT '.' 124 125 #define SIMPLE_NEWLINE 'n' 126 #define SIMPLE_TAB 't' 127 #define SIMPLE_PERCENT '%' 128 #define SIMPLE_NUMBER '@' 129 130 #define FMT_POUND '#' 131 #define FMT_SPACE ' ' 132 #define FMT_PLUS '+' 133 #define FMT_ZERO '0' 134 #define FMT_MINUS '-' 135 136 #define FMT_DECIMAL 'D' 137 #define FMT_OCTAL 'O' 138 #define FMT_UNSIGNED 'U' 139 #define FMT_HEX 'X' 140 #define FMT_FLOAT 'F' 141 #define FMT_STRING 'S' 142 143 #define FMTF_DECIMAL 0x01 144 #define FMTF_OCTAL 0x02 145 #define FMTF_UNSIGNED 0x04 146 #define FMTF_HEX 0x08 147 #define FMTF_FLOAT 0x10 148 #define FMTF_STRING 0x20 149 150 #define HIGH_PIECE 'H' 151 #define MIDDLE_PIECE 'M' 152 #define LOW_PIECE 'L' 153 154 #define SHOW_st_dev 'd' 155 #define SHOW_st_ino 'i' 156 #define SHOW_st_mode 'p' 157 #define SHOW_st_nlink 'l' 158 #define SHOW_st_uid 'u' 159 #define SHOW_st_gid 'g' 160 #define SHOW_st_rdev 'r' 161 #define SHOW_st_atime 'a' 162 #define SHOW_st_mtime 'm' 163 #define SHOW_st_ctime 'c' 164 #define SHOW_st_btime 'B' 165 #define SHOW_st_size 'z' 166 #define SHOW_st_blocks 'b' 167 #define SHOW_st_blksize 'k' 168 #define SHOW_st_flags 'f' 169 #define SHOW_st_gen 'v' 170 #define SHOW_symlink 'Y' 171 #define SHOW_filetype 'T' 172 #define SHOW_filename 'N' 173 #define SHOW_sizerdev 'Z' 174 175 void usage(const char *); 176 void output(const struct stat *, const char *, 177 const char *, int, int, int); 178 int format1(const struct stat *, /* stat info */ 179 const char *, /* the file name */ 180 const char *, int, /* the format string itself */ 181 char *, size_t, /* a place to put the output */ 182 int, int, int, int, /* the parsed format */ 183 int, int); 184 185 char *timefmt; 186 int linkfail; 187 188 #define addchar(s, c, nl) \ 189 do { \ 190 (void)fputc((c), (s)); \ 191 (*nl) = ((c) == '\n'); \ 192 } while (0/*CONSTCOND*/) 193 194 int 195 main(int argc, char *argv[]) 196 { 197 struct stat st; 198 int ch, rc, errs, am_readlink; 199 int lsF, fmtchar, usestat, fn, nonl, quiet; 200 char *statfmt, *options, *synopsis; 201 202 am_readlink = 0; 203 lsF = 0; 204 fmtchar = '\0'; 205 usestat = 0; 206 nonl = 0; 207 quiet = 0; 208 linkfail = 0; 209 statfmt = NULL; 210 timefmt = NULL; 211 212 if (strcmp(getprogname(), "readlink") == 0) { 213 am_readlink = 1; 214 options = "n"; 215 synopsis = "[-n] [file ...]"; 216 statfmt = "%Y"; 217 fmtchar = 'f'; 218 quiet = 1; 219 } else { 220 options = "f:FlLnqrst:x"; 221 synopsis = "[-FlLnqrsx] [-f format] [-t timefmt] [file ...]"; 222 } 223 224 while ((ch = getopt(argc, argv, options)) != -1) 225 switch (ch) { 226 case 'F': 227 lsF = 1; 228 break; 229 case 'L': 230 usestat = 1; 231 break; 232 case 'n': 233 nonl = 1; 234 break; 235 case 'q': 236 quiet = 1; 237 break; 238 case 'f': 239 statfmt = optarg; 240 /* FALLTHROUGH */ 241 case 'l': 242 case 'r': 243 case 's': 244 case 'x': 245 if (fmtchar != 0) 246 errx(1, "can't use format '%c' with '%c'", 247 fmtchar, ch); 248 fmtchar = ch; 249 break; 250 case 't': 251 timefmt = optarg; 252 break; 253 default: 254 usage(synopsis); 255 } 256 257 argc -= optind; 258 argv += optind; 259 fn = 1; 260 261 if (fmtchar == '\0') { 262 if (lsF) 263 fmtchar = 'l'; 264 else { 265 fmtchar = 'f'; 266 statfmt = DEF_FORMAT; 267 } 268 } 269 270 if (lsF && fmtchar != 'l') 271 errx(1, "can't use format '%c' with -F", fmtchar); 272 273 switch (fmtchar) { 274 case 'f': 275 /* statfmt already set */ 276 break; 277 case 'l': 278 statfmt = lsF ? LSF_FORMAT : LS_FORMAT; 279 break; 280 case 'r': 281 statfmt = RAW_FORMAT; 282 break; 283 case 's': 284 statfmt = SHELL_FORMAT; 285 break; 286 case 'x': 287 statfmt = LINUX_FORMAT; 288 if (timefmt == NULL) 289 timefmt = "%c"; 290 break; 291 default: 292 usage(synopsis); 293 /*NOTREACHED*/ 294 } 295 296 if (timefmt == NULL) 297 timefmt = TIME_FORMAT; 298 299 errs = 0; 300 do { 301 if (argc == 0) 302 rc = fstat(STDIN_FILENO, &st); 303 else if (usestat) 304 rc = stat(argv[0], &st); 305 else 306 rc = lstat(argv[0], &st); 307 308 if (rc == -1) { 309 errs = 1; 310 linkfail = 1; 311 if (!quiet) 312 warn("%s: stat", 313 argc == 0 ? "(stdin)" : argv[0]); 314 } 315 else 316 output(&st, argv[0], statfmt, fn, nonl, quiet); 317 318 argv++; 319 argc--; 320 fn++; 321 } while (argc > 0); 322 323 return (am_readlink ? linkfail : errs); 324 } 325 326 void 327 usage(const char *synopsis) 328 { 329 330 (void)fprintf(stderr, "usage: %s %s\n", getprogname(), synopsis); 331 exit(1); 332 } 333 334 /* 335 * Parses a format string. 336 */ 337 void 338 output(const struct stat *st, const char *file, 339 const char *statfmt, int fn, int nonl, int quiet) 340 { 341 int flags, size, prec, ofmt, hilo, what; 342 char buf[PATH_MAX]; 343 const char *subfmt; 344 int nl, t, i; 345 346 nl = 1; 347 while (*statfmt != '\0') { 348 349 /* 350 * Non-format characters go straight out. 351 */ 352 if (*statfmt != FMT_MAGIC) { 353 addchar(stdout, *statfmt, &nl); 354 statfmt++; 355 continue; 356 } 357 358 /* 359 * The current format "substring" starts here, 360 * and then we skip the magic. 361 */ 362 subfmt = statfmt; 363 statfmt++; 364 365 /* 366 * Some simple one-character "formats". 367 */ 368 switch (*statfmt) { 369 case SIMPLE_NEWLINE: 370 addchar(stdout, '\n', &nl); 371 statfmt++; 372 continue; 373 case SIMPLE_TAB: 374 addchar(stdout, '\t', &nl); 375 statfmt++; 376 continue; 377 case SIMPLE_PERCENT: 378 addchar(stdout, '%', &nl); 379 statfmt++; 380 continue; 381 case SIMPLE_NUMBER: { 382 char num[12], *p; 383 384 snprintf(num, sizeof(num), "%d", fn); 385 for (p = &num[0]; *p; p++) 386 addchar(stdout, *p, &nl); 387 statfmt++; 388 continue; 389 } 390 } 391 392 /* 393 * This must be an actual format string. Format strings are 394 * similar to printf(3) formats up to a point, and are of 395 * the form: 396 * 397 * % required start of format 398 * [-# +0] opt. format characters 399 * size opt. field width 400 * . opt. decimal separator, followed by 401 * prec opt. precision 402 * fmt opt. output specifier (string, numeric, etc.) 403 * sub opt. sub field specifier (high, middle, low) 404 * datum required field specifier (size, mode, etc) 405 * 406 * Only the % and the datum selector are required. All data 407 * have reasonable default output forms. The "sub" specifier 408 * only applies to certain data (mode, dev, rdev, filetype). 409 * The symlink output defaults to STRING, yet will only emit 410 * the leading " -> " if STRING is explicitly specified. The 411 * sizerdev datum will generate rdev output for character or 412 * block devices, and size output for all others. 413 */ 414 flags = 0; 415 do { 416 if (*statfmt == FMT_POUND) 417 flags |= FLAG_POUND; 418 else if (*statfmt == FMT_SPACE) 419 flags |= FLAG_SPACE; 420 else if (*statfmt == FMT_PLUS) 421 flags |= FLAG_PLUS; 422 else if (*statfmt == FMT_ZERO) 423 flags |= FLAG_ZERO; 424 else if (*statfmt == FMT_MINUS) 425 flags |= FLAG_MINUS; 426 else 427 break; 428 statfmt++; 429 } while (1/*CONSTCOND*/); 430 431 size = -1; 432 if (isdigit((unsigned)*statfmt)) { 433 size = 0; 434 while (isdigit((unsigned)*statfmt)) { 435 size = (size * 10) + (*statfmt - '0'); 436 statfmt++; 437 if (size < 0) 438 goto badfmt; 439 } 440 } 441 442 prec = -1; 443 if (*statfmt == FMT_DOT) { 444 statfmt++; 445 446 prec = 0; 447 while (isdigit((unsigned)*statfmt)) { 448 prec = (prec * 10) + (*statfmt - '0'); 449 statfmt++; 450 if (prec < 0) 451 goto badfmt; 452 } 453 } 454 455 #define fmtcase(x, y) case (y): (x) = (y); statfmt++; break 456 #define fmtcasef(x, y, z) case (y): (x) = (z); statfmt++; break 457 switch (*statfmt) { 458 fmtcasef(ofmt, FMT_DECIMAL, FMTF_DECIMAL); 459 fmtcasef(ofmt, FMT_OCTAL, FMTF_OCTAL); 460 fmtcasef(ofmt, FMT_UNSIGNED, FMTF_UNSIGNED); 461 fmtcasef(ofmt, FMT_HEX, FMTF_HEX); 462 fmtcasef(ofmt, FMT_FLOAT, FMTF_FLOAT); 463 fmtcasef(ofmt, FMT_STRING, FMTF_STRING); 464 default: 465 ofmt = 0; 466 break; 467 } 468 469 switch (*statfmt) { 470 fmtcase(hilo, HIGH_PIECE); 471 fmtcase(hilo, MIDDLE_PIECE); 472 fmtcase(hilo, LOW_PIECE); 473 default: 474 hilo = 0; 475 break; 476 } 477 478 switch (*statfmt) { 479 fmtcase(what, SHOW_st_dev); 480 fmtcase(what, SHOW_st_ino); 481 fmtcase(what, SHOW_st_mode); 482 fmtcase(what, SHOW_st_nlink); 483 fmtcase(what, SHOW_st_uid); 484 fmtcase(what, SHOW_st_gid); 485 fmtcase(what, SHOW_st_rdev); 486 fmtcase(what, SHOW_st_atime); 487 fmtcase(what, SHOW_st_mtime); 488 fmtcase(what, SHOW_st_ctime); 489 fmtcase(what, SHOW_st_btime); 490 fmtcase(what, SHOW_st_size); 491 fmtcase(what, SHOW_st_blocks); 492 fmtcase(what, SHOW_st_blksize); 493 fmtcase(what, SHOW_st_flags); 494 fmtcase(what, SHOW_st_gen); 495 fmtcase(what, SHOW_symlink); 496 fmtcase(what, SHOW_filetype); 497 fmtcase(what, SHOW_filename); 498 fmtcase(what, SHOW_sizerdev); 499 default: 500 goto badfmt; 501 } 502 #undef fmtcasef 503 #undef fmtcase 504 505 t = format1(st, 506 file, 507 subfmt, statfmt - subfmt, 508 buf, sizeof(buf), 509 flags, size, prec, ofmt, hilo, what); 510 511 for (i = 0; i < t && i < sizeof(buf); i++) 512 addchar(stdout, buf[i], &nl); 513 514 continue; 515 516 badfmt: 517 errx(1, "%.*s: bad format", 518 (int)(statfmt - subfmt + 1), subfmt); 519 } 520 521 if (!nl && !nonl) 522 (void)fputc('\n', stdout); 523 (void)fflush(stdout); 524 } 525 526 /* 527 * Arranges output according to a single parsed format substring. 528 */ 529 int 530 format1(const struct stat *st, 531 const char *file, 532 const char *fmt, int flen, 533 char *buf, size_t blen, 534 int flags, int size, int prec, int ofmt, 535 int hilo, int what) 536 { 537 u_int64_t data; 538 char *sdata, lfmt[24], tmp[20]; 539 char smode[12], sid[12], path[PATH_MAX + 4]; 540 struct passwd *pw; 541 struct group *gr; 542 const struct timespec *tsp; 543 struct timespec ts; 544 struct tm *tm; 545 int l, small, formats; 546 547 tsp = NULL; 548 formats = 0; 549 small = 0; 550 551 /* 552 * First, pick out the data and tweak it based on hilo or 553 * specified output format (symlink output only). 554 */ 555 switch (what) { 556 case SHOW_st_dev: 557 case SHOW_st_rdev: 558 small = (sizeof(st->st_dev) == 4); 559 data = (what == SHOW_st_dev) ? st->st_dev : st->st_rdev; 560 #if HAVE_DEVNAME 561 sdata = (what == SHOW_st_dev) ? 562 devname(st->st_dev, S_IFBLK) : 563 devname(st->st_rdev, 564 S_ISCHR(st->st_mode) ? S_IFCHR : 565 S_ISBLK(st->st_mode) ? S_IFBLK : 566 0U); 567 if (sdata == NULL) 568 sdata = "???"; 569 #endif /* HAVE_DEVNAME */ 570 if (hilo == HIGH_PIECE) { 571 data = major(data); 572 hilo = 0; 573 } 574 else if (hilo == LOW_PIECE) { 575 data = minor((unsigned)data); 576 hilo = 0; 577 } 578 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 579 #if HAVE_DEVNAME 580 FMTF_STRING; 581 #else /* HAVE_DEVNAME */ 582 0; 583 #endif /* HAVE_DEVNAME */ 584 if (ofmt == 0) 585 ofmt = FMTF_UNSIGNED; 586 break; 587 case SHOW_st_ino: 588 small = (sizeof(st->st_ino) == 4); 589 data = st->st_ino; 590 sdata = NULL; 591 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 592 if (ofmt == 0) 593 ofmt = FMTF_UNSIGNED; 594 break; 595 case SHOW_st_mode: 596 small = (sizeof(st->st_mode) == 4); 597 data = st->st_mode; 598 strmode(st->st_mode, smode); 599 sdata = smode; 600 l = strlen(sdata); 601 if (sdata[l - 1] == ' ') 602 sdata[--l] = '\0'; 603 if (hilo == HIGH_PIECE) { 604 data >>= 12; 605 sdata += 1; 606 sdata[3] = '\0'; 607 hilo = 0; 608 } 609 else if (hilo == MIDDLE_PIECE) { 610 data = (data >> 9) & 07; 611 sdata += 4; 612 sdata[3] = '\0'; 613 hilo = 0; 614 } 615 else if (hilo == LOW_PIECE) { 616 data &= 0777; 617 sdata += 7; 618 sdata[3] = '\0'; 619 hilo = 0; 620 } 621 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 622 FMTF_STRING; 623 if (ofmt == 0) 624 ofmt = FMTF_OCTAL; 625 break; 626 case SHOW_st_nlink: 627 small = (sizeof(st->st_dev) == 4); 628 data = st->st_nlink; 629 sdata = NULL; 630 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 631 if (ofmt == 0) 632 ofmt = FMTF_UNSIGNED; 633 break; 634 case SHOW_st_uid: 635 small = (sizeof(st->st_uid) == 4); 636 data = st->st_uid; 637 if ((pw = getpwuid(st->st_uid)) != NULL) 638 sdata = pw->pw_name; 639 else { 640 snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_uid); 641 sdata = sid; 642 } 643 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 644 FMTF_STRING; 645 if (ofmt == 0) 646 ofmt = FMTF_UNSIGNED; 647 break; 648 case SHOW_st_gid: 649 small = (sizeof(st->st_gid) == 4); 650 data = st->st_gid; 651 if ((gr = getgrgid(st->st_gid)) != NULL) 652 sdata = gr->gr_name; 653 else { 654 snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_gid); 655 sdata = sid; 656 } 657 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 658 FMTF_STRING; 659 if (ofmt == 0) 660 ofmt = FMTF_UNSIGNED; 661 break; 662 case SHOW_st_atime: 663 tsp = &st->st_atimespec; 664 /* FALLTHROUGH */ 665 case SHOW_st_mtime: 666 if (tsp == NULL) 667 tsp = &st->st_mtimespec; 668 /* FALLTHROUGH */ 669 case SHOW_st_ctime: 670 if (tsp == NULL) 671 tsp = &st->st_ctimespec; 672 /* FALLTHROUGH */ 673 #if HAVE_STRUCT_STAT_ST_BIRTHTIME 674 case SHOW_st_btime: 675 if (tsp == NULL) 676 tsp = &st->st_birthtimespec; 677 #endif /* HAVE_STRUCT_STAT_ST_BIRTHTIME */ 678 ts = *tsp; /* copy so we can muck with it */ 679 small = (sizeof(ts.tv_sec) == 4); 680 data = ts.tv_sec; 681 small = 1; 682 tm = localtime(&ts.tv_sec); 683 strftime(path, sizeof(path), timefmt, tm); 684 sdata = path; 685 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 686 FMTF_FLOAT | FMTF_STRING; 687 if (ofmt == 0) 688 ofmt = FMTF_DECIMAL; 689 break; 690 case SHOW_st_size: 691 small = (sizeof(st->st_size) == 4); 692 data = st->st_size; 693 sdata = NULL; 694 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 695 if (ofmt == 0) 696 ofmt = FMTF_UNSIGNED; 697 break; 698 case SHOW_st_blocks: 699 small = (sizeof(st->st_blocks) == 4); 700 data = st->st_blocks; 701 sdata = NULL; 702 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 703 if (ofmt == 0) 704 ofmt = FMTF_UNSIGNED; 705 break; 706 case SHOW_st_blksize: 707 small = (sizeof(st->st_blksize) == 4); 708 data = st->st_blksize; 709 sdata = NULL; 710 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 711 if (ofmt == 0) 712 ofmt = FMTF_UNSIGNED; 713 break; 714 #if HAVE_STRUCT_STAT_ST_FLAGS 715 case SHOW_st_flags: 716 small = (sizeof(st->st_flags) == 4); 717 data = st->st_flags; 718 sdata = NULL; 719 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 720 if (ofmt == 0) 721 ofmt = FMTF_UNSIGNED; 722 break; 723 #endif /* HAVE_STRUCT_STAT_ST_FLAGS */ 724 #if HAVE_STRUCT_STAT_ST_GEN 725 case SHOW_st_gen: 726 small = (sizeof(st->st_gen) == 4); 727 data = st->st_gen; 728 sdata = NULL; 729 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 730 if (ofmt == 0) 731 ofmt = FMTF_UNSIGNED; 732 break; 733 #endif /* HAVE_STRUCT_STAT_ST_GEN */ 734 case SHOW_symlink: 735 small = 0; 736 data = 0; 737 if (S_ISLNK(st->st_mode)) { 738 snprintf(path, sizeof(path), " -> "); 739 l = readlink(file, path + 4, sizeof(path) - 4 - 1); 740 if (l == -1) { 741 linkfail = 1; 742 l = 0; 743 path[0] = '\0'; 744 } 745 path[l + 4] = '\0'; 746 sdata = path + (ofmt == FMTF_STRING ? 0 : 4); 747 } 748 else { 749 linkfail = 1; 750 sdata = ""; 751 } 752 formats = FMTF_STRING; 753 if (ofmt == 0) 754 ofmt = FMTF_STRING; 755 break; 756 case SHOW_filetype: 757 small = 0; 758 data = 0; 759 sdata = smode; 760 sdata[0] = '\0'; 761 if (hilo == 0 || hilo == LOW_PIECE) { 762 switch (st->st_mode & S_IFMT) { 763 case S_IFIFO: (void)strcat(sdata, "|"); break; 764 case S_IFDIR: (void)strcat(sdata, "/"); break; 765 case S_IFREG: 766 if (st->st_mode & 767 (S_IXUSR | S_IXGRP | S_IXOTH)) 768 (void)strcat(sdata, "*"); 769 break; 770 case S_IFLNK: (void)strcat(sdata, "@"); break; 771 case S_IFSOCK: (void)strcat(sdata, "="); break; 772 #ifdef S_IFWHT 773 case S_IFWHT: (void)strcat(sdata, "%"); break; 774 #endif /* S_IFWHT */ 775 #ifdef S_IFDOOR 776 case S_IFDOOR: (void)strcat(sdata, ">"); break; 777 #endif /* S_IFDOOR */ 778 } 779 hilo = 0; 780 } 781 else if (hilo == HIGH_PIECE) { 782 switch (st->st_mode & S_IFMT) { 783 case S_IFIFO: sdata = "Fifo File"; break; 784 case S_IFCHR: sdata = "Character Device"; break; 785 case S_IFDIR: sdata = "Directory"; break; 786 case S_IFBLK: sdata = "Block Device"; break; 787 case S_IFREG: sdata = "Regular File"; break; 788 case S_IFLNK: sdata = "Symbolic Link"; break; 789 case S_IFSOCK: sdata = "Socket"; break; 790 #ifdef S_IFWHT 791 case S_IFWHT: sdata = "Whiteout File"; break; 792 #endif /* S_IFWHT */ 793 #ifdef S_IFDOOR 794 case S_IFDOOR: sdata = "Door"; break; 795 #endif /* S_IFDOOR */ 796 default: sdata = "???"; break; 797 } 798 hilo = 0; 799 } 800 formats = FMTF_STRING; 801 if (ofmt == 0) 802 ofmt = FMTF_STRING; 803 break; 804 case SHOW_filename: 805 small = 0; 806 data = 0; 807 if (file == NULL) 808 (void)strncpy(path, "(stdin)", sizeof(path)); 809 else 810 (void)strncpy(path, file, sizeof(path)); 811 sdata = path; 812 formats = FMTF_STRING; 813 if (ofmt == 0) 814 ofmt = FMTF_STRING; 815 break; 816 case SHOW_sizerdev: 817 if (S_ISCHR(st->st_mode) || S_ISBLK(st->st_mode)) { 818 char majdev[20], mindev[20]; 819 int l1, l2; 820 821 l1 = format1(st, 822 file, 823 fmt, flen, 824 majdev, sizeof(majdev), 825 flags, size, prec, 826 ofmt, HIGH_PIECE, SHOW_st_rdev); 827 l2 = format1(st, 828 file, 829 fmt, flen, 830 mindev, sizeof(mindev), 831 flags, size, prec, 832 ofmt, LOW_PIECE, SHOW_st_rdev); 833 return (snprintf(buf, blen, "%.*s,%.*s", 834 l1, majdev, l2, mindev)); 835 } 836 else { 837 return (format1(st, 838 file, 839 fmt, flen, 840 buf, blen, 841 flags, size, prec, 842 ofmt, 0, SHOW_st_size)); 843 } 844 /*NOTREACHED*/ 845 default: 846 errx(1, "%.*s: bad format", (int)flen, fmt); 847 } 848 849 /* 850 * If a subdatum was specified but not supported, or an output 851 * format was selected that is not supported, that's an error. 852 */ 853 if (hilo != 0 || (ofmt & formats) == 0) 854 errx(1, "%.*s: bad format", (int)flen, fmt); 855 856 /* 857 * Assemble the format string for passing to printf(3). 858 */ 859 lfmt[0] = '\0'; 860 (void)strcat(lfmt, "%"); 861 if (flags & FLAG_POUND) 862 (void)strcat(lfmt, "#"); 863 if (flags & FLAG_SPACE) 864 (void)strcat(lfmt, " "); 865 if (flags & FLAG_PLUS) 866 (void)strcat(lfmt, "+"); 867 if (flags & FLAG_MINUS) 868 (void)strcat(lfmt, "-"); 869 if (flags & FLAG_ZERO) 870 (void)strcat(lfmt, "0"); 871 872 /* 873 * Only the timespecs support the FLOAT output format, and that 874 * requires work that differs from the other formats. 875 */ 876 if (ofmt == FMTF_FLOAT) { 877 /* 878 * Nothing after the decimal point, so just print seconds. 879 */ 880 if (prec == 0) { 881 if (size != -1) { 882 (void)snprintf(tmp, sizeof(tmp), "%d", size); 883 (void)strcat(lfmt, tmp); 884 } 885 (void)strcat(lfmt, "d"); 886 return (snprintf(buf, blen, lfmt, ts.tv_sec)); 887 } 888 889 /* 890 * Unspecified precision gets all the precision we have: 891 * 9 digits. 892 */ 893 if (prec == -1) 894 prec = 9; 895 896 /* 897 * Adjust the size for the decimal point and the digits 898 * that will follow. 899 */ 900 size -= prec + 1; 901 902 /* 903 * Any leftover size that's legitimate will be used. 904 */ 905 if (size > 0) { 906 (void)snprintf(tmp, sizeof(tmp), "%d", size); 907 (void)strcat(lfmt, tmp); 908 } 909 (void)strcat(lfmt, "d"); 910 911 /* 912 * The stuff after the decimal point always needs zero 913 * filling. 914 */ 915 (void)strcat(lfmt, ".%0"); 916 917 /* 918 * We can "print" at most nine digits of precision. The 919 * rest we will pad on at the end. 920 */ 921 (void)snprintf(tmp, sizeof(tmp), "%dd", prec > 9 ? 9 : prec); 922 (void)strcat(lfmt, tmp); 923 924 /* 925 * For precision of less that nine digits, trim off the 926 * less significant figures. 927 */ 928 for (; prec < 9; prec++) 929 ts.tv_nsec /= 10; 930 931 /* 932 * Use the format, and then tack on any zeroes that 933 * might be required to make up the requested precision. 934 */ 935 l = snprintf(buf, blen, lfmt, ts.tv_sec, ts.tv_nsec); 936 for (; prec > 9 && l < blen; prec--, l++) 937 (void)strcat(buf, "0"); 938 return (l); 939 } 940 941 /* 942 * Add on size and precision, if specified, to the format. 943 */ 944 if (size != -1) { 945 (void)snprintf(tmp, sizeof(tmp), "%d", size); 946 (void)strcat(lfmt, tmp); 947 } 948 if (prec != -1) { 949 (void)snprintf(tmp, sizeof(tmp), ".%d", prec); 950 (void)strcat(lfmt, tmp); 951 } 952 953 /* 954 * String output uses the temporary sdata. 955 */ 956 if (ofmt == FMTF_STRING) { 957 if (sdata == NULL) 958 errx(1, "%.*s: bad format", (int)flen, fmt); 959 (void)strcat(lfmt, "s"); 960 return (snprintf(buf, blen, lfmt, sdata)); 961 } 962 963 /* 964 * Ensure that sign extension does not cause bad looking output 965 * for some forms. 966 */ 967 if (small && ofmt != FMTF_DECIMAL) 968 data = (u_int32_t)data; 969 970 /* 971 * The four "numeric" output forms. 972 */ 973 (void)strcat(lfmt, "ll"); 974 switch (ofmt) { 975 case FMTF_DECIMAL: (void)strcat(lfmt, "d"); break; 976 case FMTF_OCTAL: (void)strcat(lfmt, "o"); break; 977 case FMTF_UNSIGNED: (void)strcat(lfmt, "u"); break; 978 case FMTF_HEX: (void)strcat(lfmt, "x"); break; 979 } 980 981 return (snprintf(buf, blen, lfmt, data)); 982 } 983