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 #ifndef lint 43 static char sccsid[] = "@(#)ls.c 8.5 (Berkeley) 4/2/94"; 44 #endif /* not lint */ 45 #endif 46 #include <sys/cdefs.h> 47 __FBSDID("$FreeBSD$"); 48 49 #include <sys/param.h> 50 #include <sys/stat.h> 51 #include <sys/ioctl.h> 52 #include <sys/mac.h> 53 54 #include <ctype.h> 55 #include <dirent.h> 56 #include <err.h> 57 #include <errno.h> 58 #include <fts.h> 59 #include <getopt.h> 60 #include <grp.h> 61 #include <inttypes.h> 62 #include <limits.h> 63 #include <locale.h> 64 #include <pwd.h> 65 #include <stdbool.h> 66 #include <stdio.h> 67 #include <stdlib.h> 68 #include <string.h> 69 #include <unistd.h> 70 #ifdef COLORLS 71 #include <termcap.h> 72 #include <signal.h> 73 #endif 74 75 #include "ls.h" 76 #include "extern.h" 77 78 /* 79 * Upward approximation of the maximum number of characters needed to 80 * represent a value of integral type t as a string, excluding the 81 * NUL terminator, with provision for a sign. 82 */ 83 #define STRBUF_SIZEOF(t) (1 + CHAR_BIT * sizeof(t) / 3 + 1) 84 85 /* 86 * MAKENINES(n) turns n into (10**n)-1. This is useful for converting a width 87 * into a number that wide in decimal. 88 * XXX: Overflows are not considered. 89 */ 90 #define MAKENINES(n) \ 91 do { \ 92 intmax_t __i; \ 93 \ 94 /* Use a loop as all values of n are small. */ \ 95 for (__i = 1; n > 0; __i *= 10) \ 96 n--; \ 97 n = __i - 1; \ 98 } while(0) 99 100 static void display(const FTSENT *, FTSENT *, int); 101 static int mastercmp(const FTSENT * const *, const FTSENT * const *); 102 static void traverse(int, char **, int); 103 104 #define COLOR_OPT (CHAR_MAX + 1) 105 106 static const struct option long_opts[] = 107 { 108 {"color", optional_argument, NULL, COLOR_OPT}, 109 {NULL, no_argument, NULL, 0} 110 }; 111 112 static void (*printfcn)(const DISPLAY *); 113 static int (*sortfcn)(const FTSENT *, const FTSENT *); 114 115 long blocksize; /* block size units */ 116 int termwidth = 80; /* default terminal width */ 117 118 /* flags */ 119 int f_accesstime; /* use time of last access */ 120 int f_birthtime; /* use time of birth */ 121 int f_flags; /* show flags associated with a file */ 122 int f_humanval; /* show human-readable file sizes */ 123 int f_inode; /* print inode */ 124 static int f_kblocks; /* print size in kilobytes */ 125 int f_label; /* show MAC label */ 126 static int f_listdir; /* list actual directory, not contents */ 127 static int f_listdot; /* list files beginning with . */ 128 int f_longform; /* long listing format */ 129 static int f_noautodot; /* do not automatically enable -A for root */ 130 static int f_nofollow; /* don't follow symbolic link arguments */ 131 int f_nonprint; /* show unprintables as ? */ 132 static int f_nosort; /* don't sort output */ 133 int f_notabs; /* don't use tab-separated multi-col output */ 134 static int f_numericonly; /* don't convert uid/gid to name */ 135 int f_octal; /* show unprintables as \xxx */ 136 int f_octal_escape; /* like f_octal but use C escapes if possible */ 137 static int f_recursive; /* ls subdirectories also */ 138 static int f_reversesort; /* reverse whatever sort is used */ 139 static int f_verssort; /* sort names using strverscmp(3) rather than strcoll(3) */ 140 int f_samesort; /* sort time and name in same direction */ 141 int f_sectime; /* print full time information */ 142 static int f_singlecol; /* use single column output */ 143 int f_size; /* list size in short listing */ 144 static int f_sizesort; 145 int f_slash; /* similar to f_type, but only for dirs */ 146 int f_sortacross; /* sort across rows, not down columns */ 147 int f_statustime; /* use time of last mode change */ 148 static int f_stream; /* stream the output, separate with commas */ 149 int f_thousands; /* show file sizes with thousands separators */ 150 char *f_timeformat; /* user-specified time format */ 151 static int f_timesort; /* sort by time vice name */ 152 int f_type; /* add type character for non-regular files */ 153 static int f_whiteout; /* show whiteout entries */ 154 #ifdef COLORLS 155 int colorflag = COLORFLAG_NEVER; /* passed in colorflag */ 156 int f_color; /* add type in color for non-regular files */ 157 bool explicitansi; /* Explicit ANSI sequences, no termcap(5) */ 158 char *ansi_bgcol; /* ANSI sequence to set background colour */ 159 char *ansi_fgcol; /* ANSI sequence to set foreground colour */ 160 char *ansi_coloff; /* ANSI sequence to reset colours */ 161 char *attrs_off; /* ANSI sequence to turn off attributes */ 162 char *enter_bold; /* ANSI sequence to set color to bold mode */ 163 char *enter_underline; /* ANSI sequence to enter underline mode */ 164 #endif 165 166 static int rval; 167 168 static bool 169 do_color_from_env(void) 170 { 171 const char *p; 172 bool doit; 173 174 doit = false; 175 p = getenv("CLICOLOR"); 176 if (p == NULL) { 177 /* 178 * COLORTERM is the more standard name for this variable. We'll 179 * honor it as long as it's both set and not empty. 180 */ 181 p = getenv("COLORTERM"); 182 if (p != NULL && *p != '\0') 183 doit = true; 184 } else 185 doit = true; 186 187 return (doit && 188 (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE"))); 189 } 190 191 static bool 192 do_color(void) 193 { 194 195 #ifdef COLORLS 196 if (colorflag == COLORFLAG_NEVER) 197 return (false); 198 else if (colorflag == COLORFLAG_ALWAYS) 199 return (true); 200 #endif 201 return (do_color_from_env()); 202 } 203 204 #ifdef COLORLS 205 static bool 206 do_color_always(const char *term) 207 { 208 209 return (strcmp(term, "always") == 0 || strcmp(term, "yes") == 0 || 210 strcmp(term, "force") == 0); 211 } 212 213 static bool 214 do_color_never(const char *term) 215 { 216 217 return (strcmp(term, "never") == 0 || strcmp(term, "no") == 0 || 218 strcmp(term, "none") == 0); 219 } 220 221 static bool 222 do_color_auto(const char *term) 223 { 224 225 return (strcmp(term, "auto") == 0 || strcmp(term, "tty") == 0 || 226 strcmp(term, "if-tty") == 0); 227 } 228 #endif /* COLORLS */ 229 230 int 231 main(int argc, char *argv[]) 232 { 233 static char dot[] = ".", *dotav[] = {dot, NULL}; 234 struct winsize win; 235 int ch, fts_options, notused; 236 char *p; 237 const char *errstr = NULL; 238 #ifdef COLORLS 239 char termcapbuf[1024]; /* termcap definition buffer */ 240 char tcapbuf[512]; /* capability buffer */ 241 char *bp = tcapbuf, *term; 242 #endif 243 244 (void)setlocale(LC_ALL, ""); 245 246 /* Terminal defaults to -Cq, non-terminal defaults to -1. */ 247 if (isatty(STDOUT_FILENO)) { 248 termwidth = 80; 249 if ((p = getenv("COLUMNS")) != NULL && *p != '\0') 250 termwidth = strtonum(p, 0, INT_MAX, &errstr); 251 else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) != -1 && 252 win.ws_col > 0) 253 termwidth = win.ws_col; 254 f_nonprint = 1; 255 } else { 256 f_singlecol = 1; 257 /* retrieve environment variable, in case of explicit -C */ 258 p = getenv("COLUMNS"); 259 if (p) 260 termwidth = strtonum(p, 0, INT_MAX, &errstr); 261 } 262 263 if (errstr) 264 termwidth = 80; 265 266 fts_options = FTS_PHYSICAL; 267 if (getenv("LS_SAMESORT")) 268 f_samesort = 1; 269 270 /* 271 * For historical compatibility, we'll use our autodetection if CLICOLOR 272 * is set. 273 */ 274 #ifdef COLORLS 275 if (getenv("CLICOLOR")) 276 colorflag = COLORFLAG_AUTO; 277 #endif 278 while ((ch = getopt_long(argc, argv, 279 "+1ABCD:FGHILPRSTUWXZabcdfghiklmnopqrstuvwxy,", long_opts, 280 NULL)) != -1) { 281 switch (ch) { 282 /* 283 * The -1, -C, -x and -l options all override each other so 284 * shell aliasing works right. 285 */ 286 case '1': 287 f_singlecol = 1; 288 f_longform = 0; 289 f_stream = 0; 290 break; 291 case 'C': 292 f_sortacross = f_longform = f_singlecol = 0; 293 break; 294 case 'l': 295 f_longform = 1; 296 f_singlecol = 0; 297 f_stream = 0; 298 break; 299 case 'x': 300 f_sortacross = 1; 301 f_longform = 0; 302 f_singlecol = 0; 303 break; 304 /* The -c, -u, and -U options override each other. */ 305 case 'c': 306 f_statustime = 1; 307 f_accesstime = 0; 308 f_birthtime = 0; 309 break; 310 case 'u': 311 f_accesstime = 1; 312 f_statustime = 0; 313 f_birthtime = 0; 314 break; 315 case 'U': 316 f_birthtime = 1; 317 f_accesstime = 0; 318 f_statustime = 0; 319 break; 320 case 'f': 321 f_nosort = 1; 322 /* FALLTHROUGH */ 323 case 'a': 324 fts_options |= FTS_SEEDOT; 325 /* FALLTHROUGH */ 326 case 'A': 327 f_listdot = 1; 328 break; 329 /* The -t and -S options override each other. */ 330 case 'S': 331 f_sizesort = 1; 332 f_timesort = 0; 333 break; 334 case 't': 335 f_timesort = 1; 336 f_sizesort = 0; 337 break; 338 /* Other flags. Please keep alphabetic. */ 339 case ',': 340 f_thousands = 1; 341 break; 342 case 'B': 343 f_nonprint = 0; 344 f_octal = 1; 345 f_octal_escape = 0; 346 break; 347 case 'D': 348 f_timeformat = optarg; 349 break; 350 case 'F': 351 f_type = 1; 352 f_slash = 0; 353 break; 354 case 'G': 355 /* 356 * We both set CLICOLOR here and set colorflag to 357 * COLORFLAG_AUTO, because -G should not force color if 358 * stdout isn't a tty. 359 */ 360 setenv("CLICOLOR", "", 1); 361 #ifdef COLORLS 362 colorflag = COLORFLAG_AUTO; 363 #endif 364 break; 365 case 'H': 366 fts_options |= FTS_COMFOLLOW; 367 f_nofollow = 0; 368 break; 369 case 'I': 370 f_noautodot = 1; 371 break; 372 case 'L': 373 fts_options &= ~FTS_PHYSICAL; 374 fts_options |= FTS_LOGICAL; 375 f_nofollow = 0; 376 break; 377 case 'P': 378 fts_options &= ~FTS_COMFOLLOW; 379 fts_options &= ~FTS_LOGICAL; 380 fts_options |= FTS_PHYSICAL; 381 f_nofollow = 1; 382 break; 383 case 'R': 384 f_recursive = 1; 385 break; 386 case 'T': 387 f_sectime = 1; 388 break; 389 case 'W': 390 f_whiteout = 1; 391 break; 392 case 'Z': 393 f_label = 1; 394 break; 395 case 'b': 396 f_nonprint = 0; 397 f_octal = 0; 398 f_octal_escape = 1; 399 break; 400 /* The -d option turns off the -R option. */ 401 case 'd': 402 f_listdir = 1; 403 f_recursive = 0; 404 break; 405 case 'g': /* Compatibility with 4.3BSD. */ 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 break; 425 case 'o': 426 f_flags = 1; 427 break; 428 case 'p': 429 f_slash = 1; 430 f_type = 1; 431 break; 432 case 'q': 433 f_nonprint = 1; 434 f_octal = 0; 435 f_octal_escape = 0; 436 break; 437 case 'r': 438 f_reversesort = 1; 439 break; 440 case 's': 441 f_size = 1; 442 break; 443 case 'v': 444 f_verssort = 1; 445 break; 446 case 'w': 447 f_nonprint = 0; 448 f_octal = 0; 449 f_octal_escape = 0; 450 break; 451 case 'y': 452 f_samesort = 1; 453 break; 454 case COLOR_OPT: 455 #ifdef COLORLS 456 if (optarg == NULL || do_color_always(optarg)) 457 colorflag = COLORFLAG_ALWAYS; 458 else if (do_color_auto(optarg)) 459 colorflag = COLORFLAG_AUTO; 460 else if (do_color_never(optarg)) 461 colorflag = COLORFLAG_NEVER; 462 else 463 errx(2, "unsupported --color value '%s' (must be always, auto, or never)", 464 optarg); 465 break; 466 #else 467 warnx("color support not compiled in"); 468 #endif 469 default: 470 case '?': 471 usage(); 472 } 473 } 474 argc -= optind; 475 argv += optind; 476 477 /* Root is -A automatically unless -I. */ 478 if (!f_listdot && getuid() == (uid_t)0 && !f_noautodot) 479 f_listdot = 1; 480 481 /* 482 * Enabling of colours is conditional on the environment in conjunction 483 * with the --color and -G arguments, if supplied. 484 */ 485 if (do_color()) { 486 #ifdef COLORLS 487 if ((term = getenv("TERM")) != NULL && 488 tgetent(termcapbuf, term) == 1) { 489 ansi_fgcol = tgetstr("AF", &bp); 490 ansi_bgcol = tgetstr("AB", &bp); 491 attrs_off = tgetstr("me", &bp); 492 enter_bold = tgetstr("md", &bp); 493 enter_underline = tgetstr("us", &bp); 494 495 /* To switch colours off use 'op' if 496 * available, otherwise use 'oc', or 497 * don't do colours at all. */ 498 ansi_coloff = tgetstr("op", &bp); 499 if (!ansi_coloff) 500 ansi_coloff = tgetstr("oc", &bp); 501 if (ansi_fgcol && ansi_bgcol && ansi_coloff) 502 f_color = 1; 503 } else if (colorflag == COLORFLAG_ALWAYS) { 504 /* 505 * If we're *always* doing color but we don't have 506 * a functional TERM supplied, we'll fallback to 507 * outputting raw ANSI sequences. 508 */ 509 f_color = 1; 510 explicitansi = true; 511 } 512 #endif /*COLORLS*/ 513 } 514 515 #ifdef COLORLS 516 if (f_color) { 517 /* 518 * We can't put tabs and color sequences together: 519 * column number will be incremented incorrectly 520 * for "stty oxtabs" mode. 521 */ 522 f_notabs = 1; 523 (void)signal(SIGINT, colorquit); 524 (void)signal(SIGQUIT, colorquit); 525 parsecolors(getenv("LSCOLORS")); 526 } 527 #endif 528 529 /* 530 * If not -F, -i, -l, -s, -S or -t options, don't require stat 531 * information, unless in color mode in which case we do 532 * need this to determine which colors to display. 533 */ 534 if (!f_inode && !f_longform && !f_size && !f_timesort && 535 !f_sizesort && !f_type 536 #ifdef COLORLS 537 && !f_color 538 #endif 539 ) 540 fts_options |= FTS_NOSTAT; 541 542 /* 543 * If not -F, -P, -d or -l options, follow any symbolic links listed on 544 * the command line, unless in color mode in which case we need to 545 * distinguish file type for a symbolic link itself and its target. 546 */ 547 if (!f_nofollow && !f_longform && !f_listdir && (!f_type || f_slash) 548 #ifdef COLORLS 549 && !f_color 550 #endif 551 ) 552 fts_options |= FTS_COMFOLLOW; 553 554 /* 555 * If -W, show whiteout entries 556 */ 557 #ifdef FTS_WHITEOUT 558 if (f_whiteout) 559 fts_options |= FTS_WHITEOUT; 560 #endif 561 562 /* If -i, -l or -s, figure out block size. */ 563 if (f_inode || f_longform || f_size) { 564 if (f_kblocks) 565 blocksize = 2; 566 else { 567 (void)getbsize(¬used, &blocksize); 568 blocksize /= 512; 569 } 570 } 571 /* Select a sort function. */ 572 if (f_reversesort) { 573 if (f_sizesort) 574 sortfcn = revsizecmp; 575 else if (f_verssort) 576 sortfcn = revverscmp; 577 else if (!f_timesort) 578 sortfcn = revnamecmp; 579 else if (f_accesstime) 580 sortfcn = revacccmp; 581 else if (f_birthtime) 582 sortfcn = revbirthcmp; 583 else if (f_statustime) 584 sortfcn = revstatcmp; 585 else /* Use modification time. */ 586 sortfcn = revmodcmp; 587 } else { 588 if (f_sizesort) 589 sortfcn = sizecmp; 590 else if (f_verssort) 591 sortfcn = verscmp; 592 else if (!f_timesort) 593 sortfcn = namecmp; 594 else if (f_accesstime) 595 sortfcn = acccmp; 596 else if (f_birthtime) 597 sortfcn = birthcmp; 598 else if (f_statustime) 599 sortfcn = statcmp; 600 else /* Use modification time. */ 601 sortfcn = modcmp; 602 } 603 604 /* Select a print function. */ 605 if (f_singlecol) 606 printfcn = printscol; 607 else if (f_longform) 608 printfcn = printlong; 609 else if (f_stream) 610 printfcn = printstream; 611 else 612 printfcn = printcol; 613 614 if (argc) 615 traverse(argc, argv, fts_options); 616 else 617 traverse(1, dotav, fts_options); 618 exit(rval); 619 } 620 621 static int output; /* If anything output. */ 622 623 /* 624 * Traverse() walks the logical directory structure specified by the argv list 625 * in the order specified by the mastercmp() comparison function. During the 626 * traversal it passes linked lists of structures to display() which represent 627 * a superset (may be exact set) of the files to be displayed. 628 */ 629 static void 630 traverse(int argc, char *argv[], int options) 631 { 632 FTS *ftsp; 633 FTSENT *p, *chp; 634 int ch_options; 635 636 if ((ftsp = 637 fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL) 638 err(1, "fts_open"); 639 640 /* 641 * We ignore errors from fts_children here since they will be 642 * replicated and signalled on the next call to fts_read() below. 643 */ 644 chp = fts_children(ftsp, 0); 645 if (chp != NULL) 646 display(NULL, chp, options); 647 if (f_listdir) 648 return; 649 650 /* 651 * If not recursing down this tree and don't need stat info, just get 652 * the names. 653 */ 654 ch_options = !f_recursive && !f_label && 655 options & FTS_NOSTAT ? FTS_NAMEONLY : 0; 656 657 while (errno = 0, (p = fts_read(ftsp)) != NULL) 658 switch (p->fts_info) { 659 case FTS_DC: 660 warnx("%s: directory causes a cycle", p->fts_name); 661 break; 662 case FTS_DNR: 663 case FTS_ERR: 664 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 665 rval = 1; 666 break; 667 case FTS_D: 668 if (p->fts_level != FTS_ROOTLEVEL && 669 p->fts_name[0] == '.' && !f_listdot) 670 break; 671 672 /* 673 * If already output something, put out a newline as 674 * a separator. If multiple arguments, precede each 675 * directory with its name. 676 */ 677 if (output) { 678 putchar('\n'); 679 (void)printname(p->fts_path); 680 puts(":"); 681 } else if (argc > 1) { 682 (void)printname(p->fts_path); 683 puts(":"); 684 output = 1; 685 } 686 chp = fts_children(ftsp, ch_options); 687 display(p, chp, options); 688 689 if (!f_recursive && chp != NULL) 690 (void)fts_set(ftsp, p, FTS_SKIP); 691 break; 692 default: 693 break; 694 } 695 if (errno) 696 err(1, "fts_read"); 697 } 698 699 /* 700 * Display() takes a linked list of FTSENT structures and passes the list 701 * along with any other necessary information to the print function. P 702 * points to the parent directory of the display list. 703 */ 704 static void 705 display(const FTSENT *p, FTSENT *list, int options) 706 { 707 struct stat *sp; 708 DISPLAY d; 709 FTSENT *cur; 710 NAMES *np; 711 off_t maxsize; 712 long maxblock; 713 uintmax_t maxinode; 714 u_long btotal, labelstrlen, maxlen, maxnlink; 715 u_long maxlabelstr; 716 u_int sizelen; 717 int maxflags; 718 gid_t maxgroup; 719 uid_t maxuser; 720 size_t flen, ulen, glen; 721 char *initmax; 722 int entries, needstats; 723 const char *user, *group; 724 char *flags, *labelstr = NULL; 725 char ngroup[STRBUF_SIZEOF(uid_t) + 1]; 726 char nuser[STRBUF_SIZEOF(gid_t) + 1]; 727 u_long width[9]; 728 int i; 729 730 needstats = f_inode || f_longform || f_size; 731 flen = 0; 732 btotal = 0; 733 734 #define LS_COLWIDTHS_FIELDS 9 735 initmax = getenv("LS_COLWIDTHS"); 736 737 for (i = 0 ; i < LS_COLWIDTHS_FIELDS; i++) 738 width[i] = 0; 739 740 if (initmax != NULL) { 741 char *endp; 742 743 for (i = 0; i < LS_COLWIDTHS_FIELDS && *initmax != '\0'; i++) { 744 if (*initmax == ':') { 745 width[i] = 0; 746 } else { 747 width[i] = strtoul(initmax, &endp, 10); 748 initmax = endp; 749 while (isspace(*initmax)) 750 initmax++; 751 if (*initmax != ':') 752 break; 753 initmax++; 754 } 755 } 756 if (i < LS_COLWIDTHS_FIELDS) 757 #ifdef COLORLS 758 if (!f_color) 759 #endif 760 f_notabs = 0; 761 } 762 763 /* Fields match -lios order. New ones should be added at the end. */ 764 maxinode = width[0]; 765 maxblock = width[1]; 766 maxnlink = width[2]; 767 maxuser = width[3]; 768 maxgroup = width[4]; 769 maxflags = width[5]; 770 maxsize = width[6]; 771 maxlen = width[7]; 772 maxlabelstr = width[8]; 773 774 MAKENINES(maxinode); 775 MAKENINES(maxblock); 776 MAKENINES(maxnlink); 777 MAKENINES(maxsize); 778 779 d.s_size = 0; 780 sizelen = 0; 781 flags = NULL; 782 for (cur = list, entries = 0; cur; cur = cur->fts_link) { 783 if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) { 784 warnx("%s: %s", 785 cur->fts_name, strerror(cur->fts_errno)); 786 cur->fts_number = NO_PRINT; 787 rval = 1; 788 continue; 789 } 790 /* 791 * P is NULL if list is the argv list, to which different rules 792 * apply. 793 */ 794 if (p == NULL) { 795 /* Directories will be displayed later. */ 796 if (cur->fts_info == FTS_D && !f_listdir) { 797 cur->fts_number = NO_PRINT; 798 continue; 799 } 800 } else { 801 /* Only display dot file if -a/-A set. */ 802 if (cur->fts_name[0] == '.' && !f_listdot) { 803 cur->fts_number = NO_PRINT; 804 continue; 805 } 806 } 807 if (cur->fts_namelen > maxlen) 808 maxlen = cur->fts_namelen; 809 if (f_octal || f_octal_escape) { 810 u_long t = len_octal(cur->fts_name, cur->fts_namelen); 811 812 if (t > maxlen) 813 maxlen = t; 814 } 815 if (needstats) { 816 sp = cur->fts_statp; 817 if (sp->st_blocks > maxblock) 818 maxblock = sp->st_blocks; 819 if (sp->st_ino > maxinode) 820 maxinode = sp->st_ino; 821 if (sp->st_nlink > maxnlink) 822 maxnlink = sp->st_nlink; 823 if (sp->st_size > maxsize) 824 maxsize = sp->st_size; 825 826 btotal += sp->st_blocks; 827 if (f_longform) { 828 if (f_numericonly) { 829 (void)snprintf(nuser, sizeof(nuser), 830 "%u", sp->st_uid); 831 (void)snprintf(ngroup, sizeof(ngroup), 832 "%u", sp->st_gid); 833 user = nuser; 834 group = ngroup; 835 } else { 836 user = user_from_uid(sp->st_uid, 0); 837 /* 838 * user_from_uid(..., 0) only returns 839 * NULL in OOM conditions. We could 840 * format the uid here, but (1) in 841 * general ls(1) exits on OOM, and (2) 842 * there is another allocation/exit 843 * path directly below, which will 844 * likely exit anyway. 845 */ 846 if (user == NULL) 847 err(1, "user_from_uid"); 848 group = group_from_gid(sp->st_gid, 0); 849 /* Ditto. */ 850 if (group == NULL) 851 err(1, "group_from_gid"); 852 } 853 if ((ulen = strlen(user)) > maxuser) 854 maxuser = ulen; 855 if ((glen = strlen(group)) > maxgroup) 856 maxgroup = glen; 857 if (f_flags) { 858 flags = fflagstostr(sp->st_flags); 859 if (flags != NULL && *flags == '\0') { 860 free(flags); 861 flags = strdup("-"); 862 } 863 if (flags == NULL) 864 err(1, "fflagstostr"); 865 flen = strlen(flags); 866 if (flen > (size_t)maxflags) 867 maxflags = flen; 868 } else 869 flen = 0; 870 labelstr = NULL; 871 if (f_label) { 872 char name[PATH_MAX + 1]; 873 mac_t label; 874 int error; 875 876 error = mac_prepare_file_label(&label); 877 if (error == -1) { 878 warn("MAC label for %s/%s", 879 cur->fts_parent->fts_path, 880 cur->fts_name); 881 goto label_out; 882 } 883 884 if (cur->fts_level == FTS_ROOTLEVEL) 885 snprintf(name, sizeof(name), 886 "%s", cur->fts_name); 887 else 888 snprintf(name, sizeof(name), 889 "%s/%s", cur->fts_parent-> 890 fts_accpath, cur->fts_name); 891 892 if (options & FTS_LOGICAL) 893 error = mac_get_file(name, 894 label); 895 else 896 error = mac_get_link(name, 897 label); 898 if (error == -1) { 899 warn("MAC label for %s/%s", 900 cur->fts_parent->fts_path, 901 cur->fts_name); 902 mac_free(label); 903 goto label_out; 904 } 905 906 error = mac_to_text(label, 907 &labelstr); 908 if (error == -1) { 909 warn("MAC label for %s/%s", 910 cur->fts_parent->fts_path, 911 cur->fts_name); 912 mac_free(label); 913 goto label_out; 914 } 915 mac_free(label); 916 label_out: 917 if (labelstr == NULL) 918 labelstr = strdup("-"); 919 labelstrlen = strlen(labelstr); 920 if (labelstrlen > maxlabelstr) 921 maxlabelstr = labelstrlen; 922 } else 923 labelstrlen = 0; 924 925 if ((np = malloc(sizeof(NAMES) + labelstrlen + 926 ulen + glen + flen + 4)) == NULL) 927 err(1, "malloc"); 928 929 np->user = &np->data[0]; 930 (void)strcpy(np->user, user); 931 np->group = &np->data[ulen + 1]; 932 (void)strcpy(np->group, group); 933 934 if (S_ISCHR(sp->st_mode) || 935 S_ISBLK(sp->st_mode)) { 936 sizelen = snprintf(NULL, 0, 937 "%#jx", (uintmax_t)sp->st_rdev); 938 if (d.s_size < sizelen) 939 d.s_size = sizelen; 940 } 941 942 if (f_flags) { 943 np->flags = &np->data[ulen + glen + 2]; 944 (void)strcpy(np->flags, flags); 945 free(flags); 946 } 947 if (f_label) { 948 np->label = &np->data[ulen + glen + 2 949 + (f_flags ? flen + 1 : 0)]; 950 (void)strcpy(np->label, labelstr); 951 free(labelstr); 952 } 953 cur->fts_pointer = np; 954 } 955 } 956 ++entries; 957 } 958 959 /* 960 * If there are no entries to display, we normally stop right 961 * here. However, we must continue if we have to display the 962 * total block count. In this case, we display the total only 963 * on the second (p != NULL) pass. 964 */ 965 if (!entries && (!(f_longform || f_size) || p == NULL)) 966 return; 967 968 d.list = list; 969 d.entries = entries; 970 d.maxlen = maxlen; 971 if (needstats) { 972 d.btotal = btotal; 973 d.s_block = snprintf(NULL, 0, "%lu", howmany(maxblock, blocksize)); 974 d.s_flags = maxflags; 975 d.s_label = maxlabelstr; 976 d.s_group = maxgroup; 977 d.s_inode = snprintf(NULL, 0, "%ju", maxinode); 978 d.s_nlink = snprintf(NULL, 0, "%lu", maxnlink); 979 sizelen = f_humanval ? HUMANVALSTR_LEN : 980 snprintf(NULL, 0, "%ju", maxsize); 981 if (d.s_size < sizelen) 982 d.s_size = sizelen; 983 d.s_user = maxuser; 984 } 985 if (f_thousands) /* make space for commas */ 986 d.s_size += (d.s_size - 1) / 3; 987 printfcn(&d); 988 output = 1; 989 990 if (f_longform) 991 for (cur = list; cur; cur = cur->fts_link) 992 free(cur->fts_pointer); 993 } 994 995 /* 996 * Ordering for mastercmp: 997 * If ordering the argv (fts_level = FTS_ROOTLEVEL) return non-directories 998 * as larger than directories. Within either group, use the sort function. 999 * All other levels use the sort function. Error entries remain unsorted. 1000 */ 1001 static int 1002 mastercmp(const FTSENT * const *a, const FTSENT * const *b) 1003 { 1004 int a_info, b_info; 1005 1006 a_info = (*a)->fts_info; 1007 if (a_info == FTS_ERR) 1008 return (0); 1009 b_info = (*b)->fts_info; 1010 if (b_info == FTS_ERR) 1011 return (0); 1012 1013 if (a_info == FTS_NS || b_info == FTS_NS) 1014 return (namecmp(*a, *b)); 1015 1016 if (a_info != b_info && 1017 (*a)->fts_level == FTS_ROOTLEVEL && !f_listdir) { 1018 if (a_info == FTS_D) 1019 return (1); 1020 if (b_info == FTS_D) 1021 return (-1); 1022 } 1023 return (sortfcn(*a, *b)); 1024 } 1025