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 37 /* $DragonFly: src/usr.bin/stat/stat.c,v 1.3 2003/07/29 00:27:49 rob Exp $ 38 */ 39 #include <sys/cdefs.h> 40 #if 0 41 #ifndef lint 42 __RCSID("$NetBSD: stat.c,v 1.10 2003/05/08 13:05:38 atatat Exp $"); 43 #endif 44 #endif 45 46 __FBSDID("$FreeBSD: src/usr.bin/stat/stat.c,v 1.5 2003/05/11 23:02:09 dougb Exp $"); 47 48 #include <sys/types.h> 49 #include <sys/stat.h> 50 51 #include <ctype.h> 52 #include <err.h> 53 #include <grp.h> 54 #include <limits.h> 55 #include <pwd.h> 56 #include <stdio.h> 57 #include <stdlib.h> 58 #include <string.h> 59 #include <time.h> 60 #include <unistd.h> 61 62 #define DEF_FORMAT \ 63 "%d %i %Sp %l %Su %Sg %r %z %a %m %c %k %b %N" 64 #define RAW_FORMAT "%d %i %#p %l %u %g %r %z %a %m %c %k %b %N" 65 #define LS_FORMAT "%Sp %l %Su %Sg %Z %m %N%SY" 66 #define LSF_FORMAT "%Sp %l %Su %Sg %Z %m %N%T%SY" 67 #define SHELL_FORMAT \ 68 "st_dev=%d st_ino=%i st_mode=%#p st_nlink=%l " \ 69 "st_uid=%u st_gid=%g st_rdev=%r st_size=%z " \ 70 "st_atime=%a st_mtime=%m st_ctime=%c " \ 71 "st_blksize=%k st_blocks=%b" 72 #define LINUX_FORMAT \ 73 " File: \"%N\"%n" \ 74 " Size: %-11z FileType: %HT%n" \ 75 " Mode: (%04OLp/%.10Sp) Uid: (%5u/%8Su) Gid: (%5g/%8Sg)%n" \ 76 "Device: %Hd,%Ld Inode: %i Links: %l%n" \ 77 "Access: %a%n" \ 78 "Modify: %m%n" \ 79 "Change: %c" 80 81 #define TIME_FORMAT "%b %e %T %Y" 82 83 #define FLAG_POUND 0x01 84 #define FLAG_SPACE 0x02 85 #define FLAG_PLUS 0x04 86 #define FLAG_ZERO 0x08 87 #define FLAG_MINUS 0x10 88 89 /* 90 * These format characters must all be unique, except the magic one. 91 */ 92 #define FMT_MAGIC '%' 93 #define FMT_DOT '.' 94 95 #define SIMPLE_NEWLINE 'n' 96 #define SIMPLE_TAB 't' 97 #define SIMPLE_PERCENT '%' 98 #define SIMPLE_NUMBER '@' 99 100 #define FMT_POUND '#' 101 #define FMT_SPACE ' ' 102 #define FMT_PLUS '+' 103 #define FMT_ZERO '0' 104 #define FMT_MINUS '-' 105 106 #define FMT_DECIMAL 'D' 107 #define FMT_OCTAL 'O' 108 #define FMT_UNSIGNED 'U' 109 #define FMT_HEX 'X' 110 #define FMT_FLOAT 'F' 111 #define FMT_STRING 'S' 112 113 #define FMTF_DECIMAL 0x01 114 #define FMTF_OCTAL 0x02 115 #define FMTF_UNSIGNED 0x04 116 #define FMTF_HEX 0x08 117 #define FMTF_FLOAT 0x10 118 #define FMTF_STRING 0x20 119 120 #define HIGH_PIECE 'H' 121 #define MIDDLE_PIECE 'M' 122 #define LOW_PIECE 'L' 123 124 #define SHOW_st_dev 'd' 125 #define SHOW_st_ino 'i' 126 #define SHOW_st_mode 'p' 127 #define SHOW_st_nlink 'l' 128 #define SHOW_st_uid 'u' 129 #define SHOW_st_gid 'g' 130 #define SHOW_st_rdev 'r' 131 #define SHOW_st_atime 'a' 132 #define SHOW_st_mtime 'm' 133 #define SHOW_st_ctime 'c' 134 #define SHOW_st_size 'z' 135 #define SHOW_st_blocks 'b' 136 #define SHOW_st_blksize 'k' 137 #define SHOW_st_flags 'f' 138 #define SHOW_st_gen 'v' 139 #define SHOW_symlink 'Y' 140 #define SHOW_filetype 'T' 141 #define SHOW_filename 'N' 142 #define SHOW_sizerdev 'Z' 143 144 void usage(const char *); 145 void output(const struct stat *, const char *, 146 const char *, int, int, int); 147 int format1(const struct stat *, /* stat info */ 148 const char *, /* the file name */ 149 const char *, int, /* the format string itself */ 150 char *, size_t, /* a place to put the output */ 151 int, int, int, int, /* the parsed format */ 152 int, int); 153 154 char *timefmt; 155 int linkfail; 156 157 #define addchar(s, c, nl) \ 158 do { \ 159 (void)fputc((c), (s)); \ 160 (*nl) = ((c) == '\n'); \ 161 } while (0/*CONSTCOND*/) 162 163 int 164 main(int argc, char *argv[]) 165 { 166 struct stat st; 167 int ch, rc, errs, am_readlink; 168 int lsF, fmtchar, usestat, fn, nonl, quiet; 169 char *statfmt, *options, *synopsis; 170 171 am_readlink = 0; 172 lsF = 0; 173 fmtchar = '\0'; 174 usestat = 0; 175 nonl = 0; 176 quiet = 0; 177 linkfail = 0; 178 statfmt = NULL; 179 timefmt = NULL; 180 181 if (strcmp(getprogname(), "readlink") == 0) { 182 am_readlink = 1; 183 options = "n"; 184 synopsis = "[-n] [file ...]"; 185 statfmt = "%Y"; 186 fmtchar = 'f'; 187 quiet = 1; 188 } else { 189 options = "f:FlLnqrst:x"; 190 synopsis = "[-FlLnqrsx] [-f format] [-t timefmt] [file ...]"; 191 } 192 193 while ((ch = getopt(argc, argv, options)) != -1) 194 switch (ch) { 195 case 'F': 196 lsF = 1; 197 break; 198 case 'L': 199 usestat = 1; 200 break; 201 case 'n': 202 nonl = 1; 203 break; 204 case 'q': 205 quiet = 1; 206 break; 207 case 'f': 208 statfmt = optarg; 209 /* FALLTHROUGH */ 210 case 'l': 211 case 'r': 212 case 's': 213 case 'x': 214 if (fmtchar != 0) 215 errx(1, "can't use format '%c' with '%c'", 216 fmtchar, ch); 217 fmtchar = ch; 218 break; 219 case 't': 220 timefmt = optarg; 221 break; 222 default: 223 usage(synopsis); 224 } 225 226 argc -= optind; 227 argv += optind; 228 fn = 1; 229 230 if (fmtchar == '\0') { 231 if (lsF) 232 fmtchar = 'l'; 233 else { 234 fmtchar = 'f'; 235 statfmt = DEF_FORMAT; 236 } 237 } 238 239 if (lsF && fmtchar != 'l') 240 errx(1, "can't use format '%c' with -F", fmtchar); 241 242 switch (fmtchar) { 243 case 'f': 244 /* statfmt already set */ 245 break; 246 case 'l': 247 statfmt = lsF ? LSF_FORMAT : LS_FORMAT; 248 break; 249 case 'r': 250 statfmt = RAW_FORMAT; 251 break; 252 case 's': 253 statfmt = SHELL_FORMAT; 254 break; 255 case 'x': 256 statfmt = LINUX_FORMAT; 257 if (timefmt == NULL) 258 timefmt = "%c"; 259 break; 260 default: 261 usage(synopsis); 262 /*NOTREACHED*/ 263 } 264 265 if (timefmt == NULL) 266 timefmt = TIME_FORMAT; 267 268 errs = 0; 269 do { 270 if (argc == 0) 271 rc = fstat(STDIN_FILENO, &st); 272 else if (usestat) 273 rc = stat(argv[0], &st); 274 else 275 rc = lstat(argv[0], &st); 276 277 if (rc == -1) { 278 errs = 1; 279 linkfail = 1; 280 if (!quiet) 281 warn("%s: stat", 282 argc == 0 ? "(stdin)" : argv[0]); 283 } 284 else 285 output(&st, argv[0], statfmt, fn, nonl, quiet); 286 287 argv++; 288 argc--; 289 fn++; 290 } while (argc > 0); 291 292 return (am_readlink ? linkfail : errs); 293 } 294 295 void 296 usage(const char *synopsis) 297 { 298 299 (void)fprintf(stderr, "usage: %s %s\n", getprogname(), synopsis); 300 exit(1); 301 } 302 303 /* 304 * Parses a format string. 305 */ 306 void 307 output(const struct stat *st, const char *file, 308 const char *statfmt, int fn, int nonl, int quiet) 309 { 310 int flags, size, prec, ofmt, hilo, what; 311 char buf[PATH_MAX]; 312 const char *subfmt; 313 int nl, t, i; 314 315 nl = 1; 316 while (*statfmt != '\0') { 317 318 /* 319 * Non-format characters go straight out. 320 */ 321 if (*statfmt != FMT_MAGIC) { 322 addchar(stdout, *statfmt, &nl); 323 statfmt++; 324 continue; 325 } 326 327 /* 328 * The current format "substring" starts here, 329 * and then we skip the magic. 330 */ 331 subfmt = statfmt; 332 statfmt++; 333 334 /* 335 * Some simple one-character "formats". 336 */ 337 switch (*statfmt) { 338 case SIMPLE_NEWLINE: 339 addchar(stdout, '\n', &nl); 340 statfmt++; 341 continue; 342 case SIMPLE_TAB: 343 addchar(stdout, '\t', &nl); 344 statfmt++; 345 continue; 346 case SIMPLE_PERCENT: 347 addchar(stdout, '%', &nl); 348 statfmt++; 349 continue; 350 case SIMPLE_NUMBER: { 351 char num[12], *p; 352 353 snprintf(num, sizeof(num), "%d", fn); 354 for (p = &num[0]; *p; p++) 355 addchar(stdout, *p, &nl); 356 statfmt++; 357 continue; 358 } 359 } 360 361 /* 362 * This must be an actual format string. Format strings are 363 * similar to printf(3) formats up to a point, and are of 364 * the form: 365 * 366 * % required start of format 367 * [-# +0] opt. format characters 368 * size opt. field width 369 * . opt. decimal separator, followed by 370 * prec opt. precision 371 * fmt opt. output specifier (string, numeric, etc.) 372 * sub opt. sub field specifier (high, middle, low) 373 * datum required field specifier (size, mode, etc) 374 * 375 * Only the % and the datum selector are required. All data 376 * have reasonable default output forms. The "sub" specifier 377 * only applies to certain data (mode, dev, rdev, filetype). 378 * The symlink output defaults to STRING, yet will only emit 379 * the leading " -> " if STRING is explicitly specified. The 380 * sizerdev datum will generate rdev output for character or 381 * block devices, and size output for all others. 382 */ 383 flags = 0; 384 do { 385 if (*statfmt == FMT_POUND) 386 flags |= FLAG_POUND; 387 else if (*statfmt == FMT_SPACE) 388 flags |= FLAG_SPACE; 389 else if (*statfmt == FMT_PLUS) 390 flags |= FLAG_PLUS; 391 else if (*statfmt == FMT_ZERO) 392 flags |= FLAG_ZERO; 393 else if (*statfmt == FMT_MINUS) 394 flags |= FLAG_MINUS; 395 else 396 break; 397 statfmt++; 398 } while (1/*CONSTCOND*/); 399 400 size = -1; 401 if (isdigit((unsigned)*statfmt)) { 402 size = 0; 403 while (isdigit((unsigned)*statfmt)) { 404 size = (size * 10) + (*statfmt - '0'); 405 statfmt++; 406 if (size < 0) 407 goto badfmt; 408 } 409 } 410 411 prec = -1; 412 if (*statfmt == FMT_DOT) { 413 statfmt++; 414 415 prec = 0; 416 while (isdigit((unsigned)*statfmt)) { 417 prec = (prec * 10) + (*statfmt - '0'); 418 statfmt++; 419 if (prec < 0) 420 goto badfmt; 421 } 422 } 423 424 #define fmtcase(x, y) case (y): (x) = (y); statfmt++; break 425 #define fmtcasef(x, y, z) case (y): (x) = (z); statfmt++; break 426 switch (*statfmt) { 427 fmtcasef(ofmt, FMT_DECIMAL, FMTF_DECIMAL); 428 fmtcasef(ofmt, FMT_OCTAL, FMTF_OCTAL); 429 fmtcasef(ofmt, FMT_UNSIGNED, FMTF_UNSIGNED); 430 fmtcasef(ofmt, FMT_HEX, FMTF_HEX); 431 fmtcasef(ofmt, FMT_FLOAT, FMTF_FLOAT); 432 fmtcasef(ofmt, FMT_STRING, FMTF_STRING); 433 default: 434 ofmt = 0; 435 break; 436 } 437 438 switch (*statfmt) { 439 fmtcase(hilo, HIGH_PIECE); 440 fmtcase(hilo, MIDDLE_PIECE); 441 fmtcase(hilo, LOW_PIECE); 442 default: 443 hilo = 0; 444 break; 445 } 446 447 switch (*statfmt) { 448 fmtcase(what, SHOW_st_dev); 449 fmtcase(what, SHOW_st_ino); 450 fmtcase(what, SHOW_st_mode); 451 fmtcase(what, SHOW_st_nlink); 452 fmtcase(what, SHOW_st_uid); 453 fmtcase(what, SHOW_st_gid); 454 fmtcase(what, SHOW_st_rdev); 455 fmtcase(what, SHOW_st_atime); 456 fmtcase(what, SHOW_st_mtime); 457 fmtcase(what, SHOW_st_ctime); 458 fmtcase(what, SHOW_st_size); 459 fmtcase(what, SHOW_st_blocks); 460 fmtcase(what, SHOW_st_blksize); 461 fmtcase(what, SHOW_st_flags); 462 fmtcase(what, SHOW_st_gen); 463 fmtcase(what, SHOW_symlink); 464 fmtcase(what, SHOW_filetype); 465 fmtcase(what, SHOW_filename); 466 fmtcase(what, SHOW_sizerdev); 467 default: 468 goto badfmt; 469 } 470 #undef fmtcasef 471 #undef fmtcase 472 473 t = format1(st, 474 file, 475 subfmt, statfmt - subfmt, 476 buf, sizeof(buf), 477 flags, size, prec, ofmt, hilo, what); 478 479 for (i = 0; i < t && i < sizeof(buf); i++) 480 addchar(stdout, buf[i], &nl); 481 482 continue; 483 484 badfmt: 485 errx(1, "%.*s: bad format", 486 (int)(statfmt - subfmt + 1), subfmt); 487 } 488 489 if (!nl && !nonl) 490 (void)fputc('\n', stdout); 491 (void)fflush(stdout); 492 } 493 494 /* 495 * Arranges output according to a single parsed format substring. 496 */ 497 int 498 format1(const struct stat *st, 499 const char *file, 500 const char *fmt, int flen, 501 char *buf, size_t blen, 502 int flags, int size, int prec, int ofmt, 503 int hilo, int what) 504 { 505 u_int64_t data; 506 char *sdata, lfmt[24], tmp[20]; 507 char smode[12], sid[12], path[PATH_MAX + 4]; 508 struct passwd *pw; 509 struct group *gr; 510 const struct timespec *tsp; 511 struct timespec ts; 512 struct tm *tm; 513 int l, small, formats; 514 515 tsp = NULL; 516 formats = 0; 517 small = 0; 518 519 /* 520 * First, pick out the data and tweak it based on hilo or 521 * specified output format (symlink output only). 522 */ 523 switch (what) { 524 case SHOW_st_dev: 525 case SHOW_st_rdev: 526 small = (sizeof(st->st_dev) == 4); 527 data = (what == SHOW_st_dev) ? st->st_dev : st->st_rdev; 528 sdata = (what == SHOW_st_dev) ? 529 devname(st->st_dev, S_IFBLK) : 530 devname(st->st_rdev, 531 S_ISCHR(st->st_mode) ? S_IFCHR : 532 S_ISBLK(st->st_mode) ? S_IFBLK : 533 0U); 534 if (sdata == NULL) 535 sdata = "???"; 536 if (hilo == HIGH_PIECE) { 537 data = major(data); 538 hilo = 0; 539 } 540 else if (hilo == LOW_PIECE) { 541 data = minor((unsigned)data); 542 hilo = 0; 543 } 544 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 545 FMTF_STRING; 546 if (ofmt == 0) 547 ofmt = FMTF_UNSIGNED; 548 break; 549 case SHOW_st_ino: 550 small = (sizeof(st->st_ino) == 4); 551 data = st->st_ino; 552 sdata = NULL; 553 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 554 if (ofmt == 0) 555 ofmt = FMTF_UNSIGNED; 556 break; 557 case SHOW_st_mode: 558 small = (sizeof(st->st_mode) == 4); 559 data = st->st_mode; 560 strmode(st->st_mode, smode); 561 sdata = smode; 562 l = strlen(sdata); 563 if (sdata[l - 1] == ' ') 564 sdata[--l] = '\0'; 565 if (hilo == HIGH_PIECE) { 566 data >>= 12; 567 sdata += 1; 568 sdata[3] = '\0'; 569 hilo = 0; 570 } 571 else if (hilo == MIDDLE_PIECE) { 572 data = (data >> 9) & 07; 573 sdata += 4; 574 sdata[3] = '\0'; 575 hilo = 0; 576 } 577 else if (hilo == LOW_PIECE) { 578 data &= 0777; 579 sdata += 7; 580 sdata[3] = '\0'; 581 hilo = 0; 582 } 583 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 584 FMTF_STRING; 585 if (ofmt == 0) 586 ofmt = FMTF_OCTAL; 587 break; 588 case SHOW_st_nlink: 589 small = (sizeof(st->st_dev) == 4); 590 data = st->st_nlink; 591 sdata = NULL; 592 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 593 if (ofmt == 0) 594 ofmt = FMTF_UNSIGNED; 595 break; 596 case SHOW_st_uid: 597 small = (sizeof(st->st_uid) == 4); 598 data = st->st_uid; 599 if ((pw = getpwuid(st->st_uid)) != NULL) 600 sdata = pw->pw_name; 601 else { 602 snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_uid); 603 sdata = sid; 604 } 605 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 606 FMTF_STRING; 607 if (ofmt == 0) 608 ofmt = FMTF_UNSIGNED; 609 break; 610 case SHOW_st_gid: 611 small = (sizeof(st->st_gid) == 4); 612 data = st->st_gid; 613 if ((gr = getgrgid(st->st_gid)) != NULL) 614 sdata = gr->gr_name; 615 else { 616 snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_gid); 617 sdata = sid; 618 } 619 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX | 620 FMTF_STRING; 621 if (ofmt == 0) 622 ofmt = FMTF_UNSIGNED; 623 break; 624 case SHOW_st_atime: 625 tsp = &st->st_atimespec; 626 /* FALLTHROUGH */ 627 case SHOW_st_mtime: 628 if (tsp == NULL) 629 tsp = &st->st_mtimespec; 630 /* FALLTHROUGH */ 631 case SHOW_st_ctime: 632 if (tsp == NULL) 633 tsp = &st->st_ctimespec; 634 /* FALLTHROUGH */ 635 case SHOW_st_size: 636 small = (sizeof(st->st_size) == 4); 637 data = st->st_size; 638 sdata = NULL; 639 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 640 if (ofmt == 0) 641 ofmt = FMTF_UNSIGNED; 642 break; 643 case SHOW_st_blocks: 644 small = (sizeof(st->st_blocks) == 4); 645 data = st->st_blocks; 646 sdata = NULL; 647 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 648 if (ofmt == 0) 649 ofmt = FMTF_UNSIGNED; 650 break; 651 case SHOW_st_blksize: 652 small = (sizeof(st->st_blksize) == 4); 653 data = st->st_blksize; 654 sdata = NULL; 655 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 656 if (ofmt == 0) 657 ofmt = FMTF_UNSIGNED; 658 break; 659 case SHOW_st_flags: 660 small = (sizeof(st->st_flags) == 4); 661 data = st->st_flags; 662 sdata = NULL; 663 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 664 if (ofmt == 0) 665 ofmt = FMTF_UNSIGNED; 666 break; 667 case SHOW_st_gen: 668 small = (sizeof(st->st_gen) == 4); 669 data = st->st_gen; 670 sdata = NULL; 671 formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX; 672 if (ofmt == 0) 673 ofmt = FMTF_UNSIGNED; 674 break; 675 case SHOW_symlink: 676 small = 0; 677 data = 0; 678 if (S_ISLNK(st->st_mode)) { 679 snprintf(path, sizeof(path), " -> "); 680 l = readlink(file, path + 4, sizeof(path) - 4 - 1); 681 if (l == -1) { 682 linkfail = 1; 683 l = 0; 684 path[0] = '\0'; 685 } 686 path[l + 4] = '\0'; 687 sdata = path + (ofmt == FMTF_STRING ? 0 : 4); 688 } 689 else { 690 linkfail = 1; 691 sdata = ""; 692 } 693 formats = FMTF_STRING; 694 if (ofmt == 0) 695 ofmt = FMTF_STRING; 696 break; 697 case SHOW_filetype: 698 small = 0; 699 data = 0; 700 sdata = smode; 701 sdata[0] = '\0'; 702 if (hilo == 0 || hilo == LOW_PIECE) { 703 switch (st->st_mode & S_IFMT) { 704 case S_IFIFO: (void)strcat(sdata, "|"); break; 705 case S_IFDIR: (void)strcat(sdata, "/"); break; 706 case S_IFREG: 707 if (st->st_mode & 708 (S_IXUSR | S_IXGRP | S_IXOTH)) 709 (void)strcat(sdata, "*"); 710 break; 711 case S_IFLNK: (void)strcat(sdata, "@"); break; 712 case S_IFSOCK: (void)strcat(sdata, "="); break; 713 case S_IFWHT: (void)strcat(sdata, "%"); break; 714 } 715 hilo = 0; 716 } 717 else if (hilo == HIGH_PIECE) { 718 switch (st->st_mode & S_IFMT) { 719 case S_IFIFO: sdata = "Fifo File"; break; 720 case S_IFCHR: sdata = "Character Device"; break; 721 case S_IFDIR: sdata = "Directory"; break; 722 case S_IFBLK: sdata = "Block Device"; break; 723 case S_IFREG: sdata = "Regular File"; break; 724 case S_IFLNK: sdata = "Symbolic Link"; break; 725 case S_IFSOCK: sdata = "Socket"; break; 726 case S_IFWHT: sdata = "Whiteout File"; break; 727 default: sdata = "???"; break; 728 } 729 hilo = 0; 730 } 731 formats = FMTF_STRING; 732 if (ofmt == 0) 733 ofmt = FMTF_STRING; 734 break; 735 case SHOW_filename: 736 small = 0; 737 data = 0; 738 if (file == NULL) 739 (void)strncpy(path, "(stdin)", sizeof(path)); 740 else 741 (void)strncpy(path, file, sizeof(path)); 742 sdata = path; 743 formats = FMTF_STRING; 744 if (ofmt == 0) 745 ofmt = FMTF_STRING; 746 break; 747 case SHOW_sizerdev: 748 if (S_ISCHR(st->st_mode) || S_ISBLK(st->st_mode)) { 749 char majdev[20], mindev[20]; 750 int l1, l2; 751 752 l1 = format1(st, 753 file, 754 fmt, flen, 755 majdev, sizeof(majdev), 756 flags, size, prec, 757 ofmt, HIGH_PIECE, SHOW_st_rdev); 758 l2 = format1(st, 759 file, 760 fmt, flen, 761 mindev, sizeof(mindev), 762 flags, size, prec, 763 ofmt, LOW_PIECE, SHOW_st_rdev); 764 return (snprintf(buf, blen, "%.*s,%.*s", 765 l1, majdev, l2, mindev)); 766 } 767 else { 768 return (format1(st, 769 file, 770 fmt, flen, 771 buf, blen, 772 flags, size, prec, 773 ofmt, 0, SHOW_st_size)); 774 } 775 /*NOTREACHED*/ 776 default: 777 errx(1, "%.*s: bad format", (int)flen, fmt); 778 } 779 780 /* 781 * If a subdatum was specified but not supported, or an output 782 * format was selected that is not supported, that's an error. 783 */ 784 if (hilo != 0 || (ofmt & formats) == 0) 785 errx(1, "%.*s: bad format", (int)flen, fmt); 786 787 /* 788 * Assemble the format string for passing to printf(3). 789 */ 790 lfmt[0] = '\0'; 791 (void)strcat(lfmt, "%"); 792 if (flags & FLAG_POUND) 793 (void)strcat(lfmt, "#"); 794 if (flags & FLAG_SPACE) 795 (void)strcat(lfmt, " "); 796 if (flags & FLAG_PLUS) 797 (void)strcat(lfmt, "+"); 798 if (flags & FLAG_MINUS) 799 (void)strcat(lfmt, "-"); 800 if (flags & FLAG_ZERO) 801 (void)strcat(lfmt, "0"); 802 803 /* 804 * Only the timespecs support the FLOAT output format, and that 805 * requires work that differs from the other formats. 806 */ 807 if (ofmt == FMTF_FLOAT) { 808 /* 809 * Nothing after the decimal point, so just print seconds. 810 */ 811 if (prec == 0) { 812 if (size != -1) { 813 (void)snprintf(tmp, sizeof(tmp), "%d", size); 814 (void)strcat(lfmt, tmp); 815 } 816 (void)strcat(lfmt, "d"); 817 return (snprintf(buf, blen, lfmt, ts.tv_sec)); 818 } 819 820 /* 821 * Unspecified precision gets all the precision we have: 822 * 9 digits. 823 */ 824 if (prec == -1) 825 prec = 9; 826 827 /* 828 * Adjust the size for the decimal point and the digits 829 * that will follow. 830 */ 831 size -= prec + 1; 832 833 /* 834 * Any leftover size that's legitimate will be used. 835 */ 836 if (size > 0) { 837 (void)snprintf(tmp, sizeof(tmp), "%d", size); 838 (void)strcat(lfmt, tmp); 839 } 840 (void)strcat(lfmt, "d"); 841 842 /* 843 * The stuff after the decimal point always needs zero 844 * filling. 845 */ 846 (void)strcat(lfmt, ".%0"); 847 848 /* 849 * We can "print" at most nine digits of precision. The 850 * rest we will pad on at the end. 851 */ 852 (void)snprintf(tmp, sizeof(tmp), "%dd", prec > 9 ? 9 : prec); 853 (void)strcat(lfmt, tmp); 854 855 /* 856 * For precision of less that nine digits, trim off the 857 * less significant figures. 858 */ 859 for (; prec < 9; prec++) 860 ts.tv_nsec /= 10; 861 862 /* 863 * Use the format, and then tack on any zeroes that 864 * might be required to make up the requested precision. 865 */ 866 l = snprintf(buf, blen, lfmt, ts.tv_sec, ts.tv_nsec); 867 for (; prec > 9 && l < blen; prec--, l++) 868 (void)strcat(buf, "0"); 869 return (l); 870 } 871 872 /* 873 * Add on size and precision, if specified, to the format. 874 */ 875 if (size != -1) { 876 (void)snprintf(tmp, sizeof(tmp), "%d", size); 877 (void)strcat(lfmt, tmp); 878 } 879 if (prec != -1) { 880 (void)snprintf(tmp, sizeof(tmp), ".%d", prec); 881 (void)strcat(lfmt, tmp); 882 } 883 884 /* 885 * String output uses the temporary sdata. 886 */ 887 if (ofmt == FMTF_STRING) { 888 if (sdata == NULL) 889 errx(1, "%.*s: bad format", (int)flen, fmt); 890 (void)strcat(lfmt, "s"); 891 return (snprintf(buf, blen, lfmt, sdata)); 892 } 893 894 /* 895 * Ensure that sign extension does not cause bad looking output 896 * for some forms. 897 */ 898 if (small && ofmt != FMTF_DECIMAL) 899 data = (u_int32_t)data; 900 901 /* 902 * The four "numeric" output forms. 903 */ 904 (void)strcat(lfmt, "ll"); 905 switch (ofmt) { 906 case FMTF_DECIMAL: (void)strcat(lfmt, "d"); break; 907 case FMTF_OCTAL: (void)strcat(lfmt, "o"); break; 908 case FMTF_UNSIGNED: (void)strcat(lfmt, "u"); break; 909 case FMTF_HEX: (void)strcat(lfmt, "x"); break; 910 } 911 912 return (snprintf(buf, blen, lfmt, data)); 913 } 914