1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1989, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Michael Fischbein. 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. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #ifndef lint 36 static const char copyright[] = 37 "@(#) Copyright (c) 1989, 1993, 1994\n\ 38 The Regents of the University of California. All rights reserved.\n"; 39 #endif /* not lint */ 40 41 #if 0 42 #endif 43 #include <sys/cdefs.h> 44 #include <sys/param.h> 45 #include <sys/stat.h> 46 #include <sys/ioctl.h> 47 #include <sys/mac.h> 48 49 #include <ctype.h> 50 #include <dirent.h> 51 #include <err.h> 52 #include <errno.h> 53 #include <fts.h> 54 #include <getopt.h> 55 #include <grp.h> 56 #include <inttypes.h> 57 #include <limits.h> 58 #include <locale.h> 59 #include <pwd.h> 60 #include <stdbool.h> 61 #include <stdio.h> 62 #include <stdlib.h> 63 #include <string.h> 64 #include <unistd.h> 65 #ifdef COLORLS 66 #include <termcap.h> 67 #include <signal.h> 68 #endif 69 70 #include "ls.h" 71 #include "extern.h" 72 73 /* 74 * Upward approximation of the maximum number of characters needed to 75 * represent a value of integral type t as a string, excluding the 76 * NUL terminator, with provision for a sign. 77 */ 78 #define STRBUF_SIZEOF(t) (1 + CHAR_BIT * sizeof(t) / 3 + 1) 79 80 /* 81 * MAKENINES(n) turns n into (10**n)-1. This is useful for converting a width 82 * into a number that wide in decimal. 83 * XXX: Overflows are not considered. 84 */ 85 #define MAKENINES(n) \ 86 do { \ 87 intmax_t __i; \ 88 \ 89 /* Use a loop as all values of n are small. */ \ 90 for (__i = 1; n > 0; __i *= 10) \ 91 n--; \ 92 n = __i - 1; \ 93 } while(0) 94 95 static void display(const FTSENT *, FTSENT *, int); 96 static int mastercmp(const FTSENT * const *, const FTSENT * const *); 97 static void traverse(int, char **, int); 98 99 #define COLOR_OPT (CHAR_MAX + 1) 100 101 static const struct option long_opts[] = 102 { 103 {"color", optional_argument, NULL, COLOR_OPT}, 104 {NULL, no_argument, NULL, 0} 105 }; 106 107 static void (*printfcn)(const DISPLAY *); 108 static int (*sortfcn)(const FTSENT *, const FTSENT *); 109 110 long blocksize; /* block size units */ 111 int termwidth = 80; /* default terminal width */ 112 113 /* flags */ 114 int f_accesstime; /* use time of last access */ 115 int f_birthtime; /* use time of birth */ 116 int f_flags; /* show flags associated with a file */ 117 int f_humanval; /* show human-readable file sizes */ 118 int f_inode; /* print inode */ 119 static int f_kblocks; /* print size in kilobytes */ 120 int f_label; /* show MAC label */ 121 static int f_listdir; /* list actual directory, not contents */ 122 static int f_listdot; /* list files beginning with . */ 123 int f_longform; /* long listing format */ 124 static int f_noautodot; /* do not automatically enable -A for root */ 125 static int f_nofollow; /* don't follow symbolic link arguments */ 126 int f_nonprint; /* show unprintables as ? */ 127 static int f_nosort; /* don't sort output */ 128 int f_notabs; /* don't use tab-separated multi-col output */ 129 static int f_numericonly; /* don't convert uid/gid to name */ 130 int f_octal; /* show unprintables as \xxx */ 131 int f_octal_escape; /* like f_octal but use C escapes if possible */ 132 static int f_recursive; /* ls subdirectories also */ 133 static int f_reversesort; /* reverse whatever sort is used */ 134 static int f_verssort; /* sort names using strverscmp(3) rather than strcoll(3) */ 135 int f_samesort; /* sort time and name in same direction */ 136 int f_sectime; /* print full time information */ 137 static int f_singlecol; /* use single column output */ 138 int f_size; /* list size in short listing */ 139 static int f_sizesort; 140 int f_slash; /* similar to f_type, but only for dirs */ 141 int f_sortacross; /* sort across rows, not down columns */ 142 int f_sowner; /* disable showing owner's name */ 143 int f_statustime; /* use time of last mode change */ 144 static int f_stream; /* stream the output, separate with commas */ 145 int f_thousands; /* show file sizes with thousands separators */ 146 char *f_timeformat; /* user-specified time format */ 147 static int f_timesort; /* sort by time vice name */ 148 int f_type; /* add type character for non-regular files */ 149 static int f_whiteout; /* show whiteout entries */ 150 #ifdef COLORLS 151 int colorflag = COLORFLAG_NEVER; /* passed in colorflag */ 152 int f_color; /* add type in color for non-regular files */ 153 bool explicitansi; /* Explicit ANSI sequences, no termcap(5) */ 154 char *ansi_bgcol; /* ANSI sequence to set background colour */ 155 char *ansi_fgcol; /* ANSI sequence to set foreground colour */ 156 char *ansi_coloff; /* ANSI sequence to reset colours */ 157 char *attrs_off; /* ANSI sequence to turn off attributes */ 158 char *enter_bold; /* ANSI sequence to set color to bold mode */ 159 char *enter_underline; /* ANSI sequence to enter underline mode */ 160 #endif 161 162 static int rval; 163 164 static bool 165 do_color_from_env(void) 166 { 167 const char *p; 168 bool doit; 169 170 doit = false; 171 p = getenv("CLICOLOR"); 172 if (p == NULL) { 173 /* 174 * COLORTERM is the more standard name for this variable. We'll 175 * honor it as long as it's both set and not empty. 176 */ 177 p = getenv("COLORTERM"); 178 if (p != NULL && *p != '\0') 179 doit = true; 180 } else 181 doit = true; 182 183 return (doit && 184 (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE"))); 185 } 186 187 static bool 188 do_color(void) 189 { 190 191 #ifdef COLORLS 192 if (colorflag == COLORFLAG_NEVER) 193 return (false); 194 else if (colorflag == COLORFLAG_ALWAYS) 195 return (true); 196 #endif 197 return (do_color_from_env()); 198 } 199 200 #ifdef COLORLS 201 static bool 202 do_color_always(const char *term) 203 { 204 205 return (strcmp(term, "always") == 0 || strcmp(term, "yes") == 0 || 206 strcmp(term, "force") == 0); 207 } 208 209 static bool 210 do_color_never(const char *term) 211 { 212 213 return (strcmp(term, "never") == 0 || strcmp(term, "no") == 0 || 214 strcmp(term, "none") == 0); 215 } 216 217 static bool 218 do_color_auto(const char *term) 219 { 220 221 return (strcmp(term, "auto") == 0 || strcmp(term, "tty") == 0 || 222 strcmp(term, "if-tty") == 0); 223 } 224 #endif /* COLORLS */ 225 226 int 227 main(int argc, char *argv[]) 228 { 229 static char dot[] = ".", *dotav[] = {dot, NULL}; 230 struct winsize win; 231 int ch, fts_options, notused; 232 char *p; 233 const char *errstr = NULL; 234 #ifdef COLORLS 235 char termcapbuf[1024]; /* termcap definition buffer */ 236 char tcapbuf[512]; /* capability buffer */ 237 char *bp = tcapbuf, *term; 238 #endif 239 240 (void)setlocale(LC_ALL, ""); 241 242 /* Terminal defaults to -Cq, non-terminal defaults to -1. */ 243 if (isatty(STDOUT_FILENO)) { 244 termwidth = 80; 245 if ((p = getenv("COLUMNS")) != NULL && *p != '\0') 246 termwidth = strtonum(p, 0, INT_MAX, &errstr); 247 else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) != -1 && 248 win.ws_col > 0) 249 termwidth = win.ws_col; 250 f_nonprint = 1; 251 } else { 252 f_singlecol = 1; 253 /* retrieve environment variable, in case of explicit -C */ 254 p = getenv("COLUMNS"); 255 if (p) 256 termwidth = strtonum(p, 0, INT_MAX, &errstr); 257 } 258 259 if (errstr) 260 termwidth = 80; 261 262 fts_options = FTS_PHYSICAL; 263 if (getenv("LS_SAMESORT")) 264 f_samesort = 1; 265 266 /* 267 * For historical compatibility, we'll use our autodetection if CLICOLOR 268 * is set. 269 */ 270 #ifdef COLORLS 271 if (getenv("CLICOLOR")) 272 colorflag = COLORFLAG_AUTO; 273 #endif 274 while ((ch = getopt_long(argc, argv, 275 "+1ABCD:FGHILPRSTUWXZabcdfghiklmnopqrstuvwxy,", long_opts, 276 NULL)) != -1) { 277 switch (ch) { 278 /* 279 * The -1, -C, -x and -l options all override each other so 280 * shell aliasing works right. 281 */ 282 case '1': 283 f_singlecol = 1; 284 f_longform = 0; 285 f_stream = 0; 286 break; 287 case 'C': 288 f_sortacross = f_longform = f_singlecol = 0; 289 break; 290 case 'l': 291 f_longform = 1; 292 f_singlecol = 0; 293 f_stream = 0; 294 break; 295 case 'x': 296 f_sortacross = 1; 297 f_longform = 0; 298 f_singlecol = 0; 299 break; 300 /* The -c, -u, and -U options override each other. */ 301 case 'c': 302 f_statustime = 1; 303 f_accesstime = 0; 304 f_birthtime = 0; 305 break; 306 case 'u': 307 f_accesstime = 1; 308 f_statustime = 0; 309 f_birthtime = 0; 310 break; 311 case 'U': 312 f_birthtime = 1; 313 f_accesstime = 0; 314 f_statustime = 0; 315 break; 316 case 'f': 317 f_nosort = 1; 318 /* FALLTHROUGH */ 319 case 'a': 320 fts_options |= FTS_SEEDOT; 321 /* FALLTHROUGH */ 322 case 'A': 323 f_listdot = 1; 324 break; 325 /* The -t and -S options override each other. */ 326 case 'S': 327 f_sizesort = 1; 328 f_timesort = 0; 329 break; 330 case 't': 331 f_timesort = 1; 332 f_sizesort = 0; 333 break; 334 /* Other flags. Please keep alphabetic. */ 335 case ',': 336 f_thousands = 1; 337 break; 338 case 'B': 339 f_nonprint = 0; 340 f_octal = 1; 341 f_octal_escape = 0; 342 break; 343 case 'D': 344 f_timeformat = optarg; 345 break; 346 case 'F': 347 f_type = 1; 348 f_slash = 0; 349 break; 350 case 'G': 351 /* 352 * We both set CLICOLOR here and set colorflag to 353 * COLORFLAG_AUTO, because -G should not force color if 354 * stdout isn't a tty. 355 */ 356 setenv("CLICOLOR", "", 1); 357 #ifdef COLORLS 358 colorflag = COLORFLAG_AUTO; 359 #endif 360 break; 361 case 'H': 362 fts_options |= FTS_COMFOLLOW; 363 f_nofollow = 0; 364 break; 365 case 'I': 366 f_noautodot = 1; 367 break; 368 case 'L': 369 fts_options &= ~FTS_PHYSICAL; 370 fts_options |= FTS_LOGICAL; 371 f_nofollow = 0; 372 break; 373 case 'P': 374 fts_options &= ~FTS_COMFOLLOW; 375 fts_options &= ~FTS_LOGICAL; 376 fts_options |= FTS_PHYSICAL; 377 f_nofollow = 1; 378 break; 379 case 'R': 380 f_recursive = 1; 381 break; 382 case 'T': 383 f_sectime = 1; 384 break; 385 case 'W': 386 f_whiteout = 1; 387 break; 388 case 'Z': 389 f_label = 1; 390 break; 391 case 'b': 392 f_nonprint = 0; 393 f_octal = 0; 394 f_octal_escape = 1; 395 break; 396 /* The -d option turns off the -R option. */ 397 case 'd': 398 f_listdir = 1; 399 f_recursive = 0; 400 break; 401 case 'g': 402 f_longform = 1; 403 f_singlecol = 0; 404 f_stream = 0; 405 f_sowner = 1; 406 break; 407 case 'h': 408 f_humanval = 1; 409 break; 410 case 'i': 411 f_inode = 1; 412 break; 413 case 'k': 414 f_humanval = 0; 415 f_kblocks = 1; 416 break; 417 case 'm': 418 f_stream = 1; 419 f_singlecol = 0; 420 f_longform = 0; 421 break; 422 case 'n': 423 f_numericonly = 1; 424 f_longform = 1; 425 f_singlecol = 0; 426 f_stream = 0; 427 break; 428 case 'o': 429 f_flags = 1; 430 break; 431 case 'p': 432 f_slash = 1; 433 f_type = 1; 434 break; 435 case 'q': 436 f_nonprint = 1; 437 f_octal = 0; 438 f_octal_escape = 0; 439 break; 440 case 'r': 441 f_reversesort = 1; 442 break; 443 case 's': 444 f_size = 1; 445 break; 446 case 'v': 447 f_verssort = 1; 448 break; 449 case 'w': 450 f_nonprint = 0; 451 f_octal = 0; 452 f_octal_escape = 0; 453 break; 454 case 'y': 455 f_samesort = 1; 456 break; 457 case COLOR_OPT: 458 #ifdef COLORLS 459 if (optarg == NULL || do_color_always(optarg)) 460 colorflag = COLORFLAG_ALWAYS; 461 else if (do_color_auto(optarg)) 462 colorflag = COLORFLAG_AUTO; 463 else if (do_color_never(optarg)) 464 colorflag = COLORFLAG_NEVER; 465 else 466 errx(2, "unsupported --color value '%s' (must be always, auto, or never)", 467 optarg); 468 break; 469 #else 470 warnx("color support not compiled in"); 471 #endif 472 default: 473 case '?': 474 usage(); 475 } 476 } 477 argc -= optind; 478 argv += optind; 479 480 /* Root is -A automatically unless -I. */ 481 if (!f_listdot && getuid() == (uid_t)0 && !f_noautodot) 482 f_listdot = 1; 483 484 /* 485 * Enabling of colours is conditional on the environment in conjunction 486 * with the --color and -G arguments, if supplied. 487 */ 488 if (do_color()) { 489 #ifdef COLORLS 490 if ((term = getenv("TERM")) != NULL && 491 tgetent(termcapbuf, term) == 1) { 492 ansi_fgcol = tgetstr("AF", &bp); 493 ansi_bgcol = tgetstr("AB", &bp); 494 attrs_off = tgetstr("me", &bp); 495 enter_bold = tgetstr("md", &bp); 496 enter_underline = tgetstr("us", &bp); 497 498 /* To switch colours off use 'op' if 499 * available, otherwise use 'oc', or 500 * don't do colours at all. */ 501 ansi_coloff = tgetstr("op", &bp); 502 if (!ansi_coloff) 503 ansi_coloff = tgetstr("oc", &bp); 504 if (ansi_fgcol && ansi_bgcol && ansi_coloff) 505 f_color = 1; 506 } else if (colorflag == COLORFLAG_ALWAYS) { 507 /* 508 * If we're *always* doing color but we don't have 509 * a functional TERM supplied, we'll fallback to 510 * outputting raw ANSI sequences. 511 */ 512 f_color = 1; 513 explicitansi = true; 514 } 515 #endif /*COLORLS*/ 516 } 517 518 #ifdef COLORLS 519 if (f_color) { 520 /* 521 * We can't put tabs and color sequences together: 522 * column number will be incremented incorrectly 523 * for "stty oxtabs" mode. 524 */ 525 f_notabs = 1; 526 (void)signal(SIGINT, colorquit); 527 (void)signal(SIGQUIT, colorquit); 528 parsecolors(getenv("LSCOLORS")); 529 } 530 #endif 531 532 /* 533 * If not -F, -i, -l, -s, -S or -t options, don't require stat 534 * information, unless in color mode in which case we do 535 * need this to determine which colors to display. 536 */ 537 if (!f_inode && !f_longform && !f_size && !f_timesort && 538 !f_sizesort && !f_type 539 #ifdef COLORLS 540 && !f_color 541 #endif 542 ) 543 fts_options |= FTS_NOSTAT; 544 545 /* 546 * If not -F, -P, -d or -l options, follow any symbolic links listed on 547 * the command line, unless in color mode in which case we need to 548 * distinguish file type for a symbolic link itself and its target. 549 */ 550 if (!f_nofollow && !f_longform && !f_listdir && (!f_type || f_slash) 551 #ifdef COLORLS 552 && !f_color 553 #endif 554 ) 555 fts_options |= FTS_COMFOLLOW; 556 557 /* 558 * If -W, show whiteout entries 559 */ 560 #ifdef FTS_WHITEOUT 561 if (f_whiteout) 562 fts_options |= FTS_WHITEOUT; 563 #endif 564 565 /* If -i, -l or -s, figure out block size. */ 566 if (f_inode || f_longform || f_size) { 567 if (f_kblocks) 568 blocksize = 2; 569 else { 570 (void)getbsize(¬used, &blocksize); 571 blocksize /= 512; 572 } 573 } 574 /* Select a sort function. */ 575 if (f_reversesort) { 576 if (f_sizesort) 577 sortfcn = revsizecmp; 578 else if (f_verssort) 579 sortfcn = revverscmp; 580 else if (!f_timesort) 581 sortfcn = revnamecmp; 582 else if (f_accesstime) 583 sortfcn = revacccmp; 584 else if (f_birthtime) 585 sortfcn = revbirthcmp; 586 else if (f_statustime) 587 sortfcn = revstatcmp; 588 else /* Use modification time. */ 589 sortfcn = revmodcmp; 590 } else { 591 if (f_sizesort) 592 sortfcn = sizecmp; 593 else if (f_verssort) 594 sortfcn = verscmp; 595 else if (!f_timesort) 596 sortfcn = namecmp; 597 else if (f_accesstime) 598 sortfcn = acccmp; 599 else if (f_birthtime) 600 sortfcn = birthcmp; 601 else if (f_statustime) 602 sortfcn = statcmp; 603 else /* Use modification time. */ 604 sortfcn = modcmp; 605 } 606 607 /* Select a print function. */ 608 if (f_singlecol) 609 printfcn = printscol; 610 else if (f_longform) 611 printfcn = printlong; 612 else if (f_stream) 613 printfcn = printstream; 614 else 615 printfcn = printcol; 616 617 if (argc) 618 traverse(argc, argv, fts_options); 619 else 620 traverse(1, dotav, fts_options); 621 exit(rval); 622 } 623 624 static int output; /* If anything output. */ 625 626 /* 627 * Traverse() walks the logical directory structure specified by the argv list 628 * in the order specified by the mastercmp() comparison function. During the 629 * traversal it passes linked lists of structures to display() which represent 630 * a superset (may be exact set) of the files to be displayed. 631 */ 632 static void 633 traverse(int argc, char *argv[], int options) 634 { 635 FTS *ftsp; 636 FTSENT *p, *chp; 637 int ch_options; 638 639 if ((ftsp = 640 fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL) 641 err(1, "fts_open"); 642 643 /* 644 * We ignore errors from fts_children here since they will be 645 * replicated and signalled on the next call to fts_read() below. 646 */ 647 chp = fts_children(ftsp, 0); 648 if (chp != NULL) 649 display(NULL, chp, options); 650 if (f_listdir) 651 return; 652 653 /* 654 * If not recursing down this tree and don't need stat info, just get 655 * the names. 656 */ 657 ch_options = !f_recursive && !f_label && 658 options & FTS_NOSTAT ? FTS_NAMEONLY : 0; 659 660 while (errno = 0, (p = fts_read(ftsp)) != NULL) 661 switch (p->fts_info) { 662 case FTS_DC: 663 warnx("%s: directory causes a cycle", p->fts_name); 664 break; 665 case FTS_DNR: 666 case FTS_ERR: 667 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 668 rval = 1; 669 break; 670 case FTS_D: 671 if (p->fts_level != FTS_ROOTLEVEL && 672 p->fts_name[0] == '.' && !f_listdot) 673 break; 674 675 /* 676 * If already output something, put out a newline as 677 * a separator. If multiple arguments, precede each 678 * directory with its name. 679 */ 680 if (output) { 681 putchar('\n'); 682 (void)printname(p->fts_path); 683 puts(":"); 684 } else if (argc > 1) { 685 (void)printname(p->fts_path); 686 puts(":"); 687 output = 1; 688 } 689 chp = fts_children(ftsp, ch_options); 690 display(p, chp, options); 691 692 if (!f_recursive && chp != NULL) 693 (void)fts_set(ftsp, p, FTS_SKIP); 694 break; 695 default: 696 break; 697 } 698 if (errno) 699 err(1, "fts_read"); 700 } 701 702 /* 703 * Display() takes a linked list of FTSENT structures and passes the list 704 * along with any other necessary information to the print function. P 705 * points to the parent directory of the display list. 706 */ 707 static void 708 display(const FTSENT *p, FTSENT *list, int options) 709 { 710 struct stat *sp; 711 DISPLAY d; 712 FTSENT *cur; 713 NAMES *np; 714 off_t maxsize; 715 long maxblock; 716 uintmax_t maxinode; 717 u_long btotal, labelstrlen, maxlen, maxnlink; 718 u_long maxlabelstr; 719 u_int sizelen; 720 int maxflags; 721 gid_t maxgroup; 722 uid_t maxuser; 723 size_t flen, ulen, glen; 724 char *initmax; 725 int entries, needstats; 726 const char *user, *group; 727 char *flags, *labelstr = NULL; 728 char ngroup[STRBUF_SIZEOF(uid_t) + 1]; 729 char nuser[STRBUF_SIZEOF(gid_t) + 1]; 730 u_long width[9]; 731 int i; 732 733 needstats = f_inode || f_longform || f_size; 734 flen = 0; 735 btotal = 0; 736 737 #define LS_COLWIDTHS_FIELDS 9 738 initmax = getenv("LS_COLWIDTHS"); 739 740 for (i = 0 ; i < LS_COLWIDTHS_FIELDS; i++) 741 width[i] = 0; 742 743 if (initmax != NULL) { 744 char *endp; 745 746 for (i = 0; i < LS_COLWIDTHS_FIELDS && *initmax != '\0'; i++) { 747 if (*initmax == ':') { 748 width[i] = 0; 749 } else { 750 width[i] = strtoul(initmax, &endp, 10); 751 initmax = endp; 752 while (isspace(*initmax)) 753 initmax++; 754 if (*initmax != ':') 755 break; 756 initmax++; 757 } 758 } 759 if (i < LS_COLWIDTHS_FIELDS) 760 #ifdef COLORLS 761 if (!f_color) 762 #endif 763 f_notabs = 0; 764 } 765 766 /* Fields match -lios order. New ones should be added at the end. */ 767 maxinode = width[0]; 768 maxblock = width[1]; 769 maxnlink = width[2]; 770 maxuser = width[3]; 771 maxgroup = width[4]; 772 maxflags = width[5]; 773 maxsize = width[6]; 774 maxlen = width[7]; 775 maxlabelstr = width[8]; 776 777 MAKENINES(maxinode); 778 MAKENINES(maxblock); 779 MAKENINES(maxnlink); 780 MAKENINES(maxsize); 781 782 d.s_size = 0; 783 sizelen = 0; 784 flags = NULL; 785 for (cur = list, entries = 0; cur; cur = cur->fts_link) { 786 if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) { 787 warnx("%s: %s", 788 cur->fts_name, strerror(cur->fts_errno)); 789 cur->fts_number = NO_PRINT; 790 rval = 1; 791 continue; 792 } 793 /* 794 * P is NULL if list is the argv list, to which different rules 795 * apply. 796 */ 797 if (p == NULL) { 798 /* Directories will be displayed later. */ 799 if (cur->fts_info == FTS_D && !f_listdir) { 800 cur->fts_number = NO_PRINT; 801 continue; 802 } 803 } else { 804 /* Only display dot file if -a/-A set. */ 805 if (cur->fts_name[0] == '.' && !f_listdot) { 806 cur->fts_number = NO_PRINT; 807 continue; 808 } 809 } 810 if (cur->fts_namelen > maxlen) 811 maxlen = cur->fts_namelen; 812 if (f_octal || f_octal_escape) { 813 u_long t = len_octal(cur->fts_name, cur->fts_namelen); 814 815 if (t > maxlen) 816 maxlen = t; 817 } 818 if (needstats) { 819 sp = cur->fts_statp; 820 if (sp->st_blocks > maxblock) 821 maxblock = sp->st_blocks; 822 if (sp->st_ino > maxinode) 823 maxinode = sp->st_ino; 824 if (sp->st_nlink > maxnlink) 825 maxnlink = sp->st_nlink; 826 if (sp->st_size > maxsize) 827 maxsize = sp->st_size; 828 829 btotal += sp->st_blocks; 830 if (f_longform) { 831 if (f_numericonly) { 832 (void)snprintf(nuser, sizeof(nuser), 833 "%u", sp->st_uid); 834 (void)snprintf(ngroup, sizeof(ngroup), 835 "%u", sp->st_gid); 836 user = nuser; 837 group = ngroup; 838 } else { 839 user = user_from_uid(sp->st_uid, 0); 840 /* 841 * user_from_uid(..., 0) only returns 842 * NULL in OOM conditions. We could 843 * format the uid here, but (1) in 844 * general ls(1) exits on OOM, and (2) 845 * there is another allocation/exit 846 * path directly below, which will 847 * likely exit anyway. 848 */ 849 if (user == NULL) 850 err(1, "user_from_uid"); 851 group = group_from_gid(sp->st_gid, 0); 852 /* Ditto. */ 853 if (group == NULL) 854 err(1, "group_from_gid"); 855 } 856 if ((ulen = strlen(user)) > maxuser) 857 maxuser = ulen; 858 if ((glen = strlen(group)) > maxgroup) 859 maxgroup = glen; 860 if (f_flags) { 861 flags = fflagstostr(sp->st_flags); 862 if (flags != NULL && *flags == '\0') { 863 free(flags); 864 flags = strdup("-"); 865 } 866 if (flags == NULL) 867 err(1, "fflagstostr"); 868 flen = strlen(flags); 869 if (flen > (size_t)maxflags) 870 maxflags = flen; 871 } else 872 flen = 0; 873 labelstr = NULL; 874 if (f_label) { 875 char name[PATH_MAX + 1]; 876 mac_t label; 877 int error; 878 879 error = mac_prepare_file_label(&label); 880 if (error == -1) { 881 warn("MAC label for %s/%s", 882 cur->fts_parent->fts_path, 883 cur->fts_name); 884 goto label_out; 885 } 886 887 if (cur->fts_level == FTS_ROOTLEVEL) 888 snprintf(name, sizeof(name), 889 "%s", cur->fts_name); 890 else 891 snprintf(name, sizeof(name), 892 "%s/%s", cur->fts_parent-> 893 fts_accpath, cur->fts_name); 894 895 if (options & FTS_LOGICAL) 896 error = mac_get_file(name, 897 label); 898 else 899 error = mac_get_link(name, 900 label); 901 if (error == -1) { 902 warn("MAC label for %s/%s", 903 cur->fts_parent->fts_path, 904 cur->fts_name); 905 mac_free(label); 906 goto label_out; 907 } 908 909 error = mac_to_text(label, 910 &labelstr); 911 if (error == -1) { 912 warn("MAC label for %s/%s", 913 cur->fts_parent->fts_path, 914 cur->fts_name); 915 mac_free(label); 916 goto label_out; 917 } 918 mac_free(label); 919 label_out: 920 if (labelstr == NULL) 921 labelstr = strdup("-"); 922 labelstrlen = strlen(labelstr); 923 if (labelstrlen > maxlabelstr) 924 maxlabelstr = labelstrlen; 925 } else 926 labelstrlen = 0; 927 928 if ((np = malloc(sizeof(NAMES) + labelstrlen + 929 ulen + glen + flen + 4)) == NULL) 930 err(1, "malloc"); 931 932 np->user = &np->data[0]; 933 (void)strcpy(np->user, user); 934 np->group = &np->data[ulen + 1]; 935 (void)strcpy(np->group, group); 936 937 if (S_ISCHR(sp->st_mode) || 938 S_ISBLK(sp->st_mode)) { 939 sizelen = snprintf(NULL, 0, 940 "%#jx", (uintmax_t)sp->st_rdev); 941 if (d.s_size < sizelen) 942 d.s_size = sizelen; 943 } 944 945 if (f_flags) { 946 np->flags = &np->data[ulen + glen + 2]; 947 (void)strcpy(np->flags, flags); 948 free(flags); 949 } 950 if (f_label) { 951 np->label = &np->data[ulen + glen + 2 952 + (f_flags ? flen + 1 : 0)]; 953 (void)strcpy(np->label, labelstr); 954 free(labelstr); 955 } 956 cur->fts_pointer = np; 957 } 958 } 959 ++entries; 960 } 961 962 /* 963 * If there are no entries to display, we normally stop right 964 * here. However, we must continue if we have to display the 965 * total block count. In this case, we display the total only 966 * on the second (p != NULL) pass. 967 */ 968 if (!entries && (!(f_longform || f_size) || p == NULL)) 969 return; 970 971 d.list = list; 972 d.entries = entries; 973 d.maxlen = maxlen; 974 if (needstats) { 975 d.btotal = btotal; 976 d.s_block = snprintf(NULL, 0, "%lu", howmany(maxblock, blocksize)); 977 d.s_flags = maxflags; 978 d.s_label = maxlabelstr; 979 d.s_group = maxgroup; 980 d.s_inode = snprintf(NULL, 0, "%ju", maxinode); 981 d.s_nlink = snprintf(NULL, 0, "%lu", maxnlink); 982 sizelen = f_humanval ? HUMANVALSTR_LEN : 983 snprintf(NULL, 0, "%ju", maxsize); 984 if (d.s_size < sizelen) 985 d.s_size = sizelen; 986 d.s_user = maxuser; 987 } 988 if (f_thousands) /* make space for commas */ 989 d.s_size += (d.s_size - 1) / 3; 990 printfcn(&d); 991 output = 1; 992 993 if (f_longform) 994 for (cur = list; cur; cur = cur->fts_link) 995 free(cur->fts_pointer); 996 } 997 998 /* 999 * Ordering for mastercmp: 1000 * If ordering the argv (fts_level = FTS_ROOTLEVEL) return non-directories 1001 * as larger than directories. Within either group, use the sort function. 1002 * All other levels use the sort function. Error entries remain unsorted. 1003 */ 1004 static int 1005 mastercmp(const FTSENT * const *a, const FTSENT * const *b) 1006 { 1007 int a_info, b_info; 1008 1009 a_info = (*a)->fts_info; 1010 if (a_info == FTS_ERR) 1011 return (0); 1012 b_info = (*b)->fts_info; 1013 if (b_info == FTS_ERR) 1014 return (0); 1015 1016 if (a_info == FTS_NS || b_info == FTS_NS) 1017 return (namecmp(*a, *b)); 1018 1019 if (a_info != b_info && 1020 (*a)->fts_level == FTS_ROOTLEVEL && !f_listdir) { 1021 if (a_info == FTS_D) 1022 return (1); 1023 if (b_info == FTS_D) 1024 return (-1); 1025 } 1026 return (sortfcn(*a, *b)); 1027 } 1028