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 #include <sys/param.h> 48 #include <sys/stat.h> 49 #include <sys/ioctl.h> 50 #include <sys/mac.h> 51 52 #include <ctype.h> 53 #include <dirent.h> 54 #include <err.h> 55 #include <errno.h> 56 #include <fts.h> 57 #include <getopt.h> 58 #include <grp.h> 59 #include <inttypes.h> 60 #include <limits.h> 61 #include <locale.h> 62 #include <pwd.h> 63 #include <stdbool.h> 64 #include <stdio.h> 65 #include <stdlib.h> 66 #include <string.h> 67 #include <unistd.h> 68 #ifdef COLORLS 69 #include <termcap.h> 70 #include <signal.h> 71 #endif 72 73 #include "ls.h" 74 #include "extern.h" 75 76 /* 77 * Upward approximation of the maximum number of characters needed to 78 * represent a value of integral type t as a string, excluding the 79 * NUL terminator, with provision for a sign. 80 */ 81 #define STRBUF_SIZEOF(t) (1 + CHAR_BIT * sizeof(t) / 3 + 1) 82 83 /* 84 * MAKENINES(n) turns n into (10**n)-1. This is useful for converting a width 85 * into a number that wide in decimal. 86 * XXX: Overflows are not considered. 87 */ 88 #define MAKENINES(n) \ 89 do { \ 90 intmax_t __i; \ 91 \ 92 /* Use a loop as all values of n are small. */ \ 93 for (__i = 1; n > 0; __i *= 10) \ 94 n--; \ 95 n = __i - 1; \ 96 } while(0) 97 98 static void display(const FTSENT *, FTSENT *, int); 99 static int mastercmp(const FTSENT * const *, const FTSENT * const *); 100 static void traverse(int, char **, int); 101 102 #define COLOR_OPT (CHAR_MAX + 1) 103 104 static const struct option long_opts[] = 105 { 106 {"color", optional_argument, NULL, COLOR_OPT}, 107 {NULL, no_argument, NULL, 0} 108 }; 109 110 static void (*printfcn)(const DISPLAY *); 111 static int (*sortfcn)(const FTSENT *, const FTSENT *); 112 113 long blocksize; /* block size units */ 114 int termwidth = 80; /* default terminal width */ 115 116 /* flags */ 117 int f_accesstime; /* use time of last access */ 118 int f_birthtime; /* use time of birth */ 119 int f_flags; /* show flags associated with a file */ 120 int f_humanval; /* show human-readable file sizes */ 121 int f_inode; /* print inode */ 122 static int f_kblocks; /* print size in kilobytes */ 123 int f_label; /* show MAC label */ 124 static int f_listdir; /* list actual directory, not contents */ 125 static int f_listdot; /* list files beginning with . */ 126 int f_longform; /* long listing format */ 127 static int f_noautodot; /* do not automatically enable -A for root */ 128 static int f_nofollow; /* don't follow symbolic link arguments */ 129 int f_nonprint; /* show unprintables as ? */ 130 static int f_nosort; /* don't sort output */ 131 int f_notabs; /* don't use tab-separated multi-col output */ 132 static int f_numericonly; /* don't convert uid/gid to name */ 133 int f_octal; /* show unprintables as \xxx */ 134 int f_octal_escape; /* like f_octal but use C escapes if possible */ 135 static int f_recursive; /* ls subdirectories also */ 136 static int f_reversesort; /* reverse whatever sort is used */ 137 static int f_verssort; /* sort names using strverscmp(3) rather than strcoll(3) */ 138 int f_samesort; /* sort time and name in same direction */ 139 int f_sectime; /* print full time information */ 140 static int f_singlecol; /* use single column output */ 141 int f_size; /* list size in short listing */ 142 static int f_sizesort; 143 int f_slash; /* similar to f_type, but only for dirs */ 144 int f_sortacross; /* sort across rows, not down columns */ 145 int f_sowner; /* disable showing owner's name */ 146 int f_statustime; /* use time of last mode change */ 147 static int f_stream; /* stream the output, separate with commas */ 148 int f_thousands; /* show file sizes with thousands separators */ 149 char *f_timeformat; /* user-specified time format */ 150 static int f_timesort; /* sort by time vice name */ 151 int f_type; /* add type character for non-regular files */ 152 static int f_whiteout; /* show whiteout entries */ 153 #ifdef COLORLS 154 int colorflag = COLORFLAG_NEVER; /* passed in colorflag */ 155 int f_color; /* add type in color for non-regular files */ 156 bool explicitansi; /* Explicit ANSI sequences, no termcap(5) */ 157 char *ansi_bgcol; /* ANSI sequence to set background colour */ 158 char *ansi_fgcol; /* ANSI sequence to set foreground colour */ 159 char *ansi_coloff; /* ANSI sequence to reset colours */ 160 char *attrs_off; /* ANSI sequence to turn off attributes */ 161 char *enter_bold; /* ANSI sequence to set color to bold mode */ 162 char *enter_underline; /* ANSI sequence to enter underline mode */ 163 #endif 164 165 static int rval; 166 167 static bool 168 do_color_from_env(void) 169 { 170 const char *p; 171 bool doit; 172 173 doit = false; 174 p = getenv("CLICOLOR"); 175 if (p == NULL) { 176 /* 177 * COLORTERM is the more standard name for this variable. We'll 178 * honor it as long as it's both set and not empty. 179 */ 180 p = getenv("COLORTERM"); 181 if (p != NULL && *p != '\0') 182 doit = true; 183 } else 184 doit = true; 185 186 return (doit && 187 (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE"))); 188 } 189 190 static bool 191 do_color(void) 192 { 193 194 #ifdef COLORLS 195 if (colorflag == COLORFLAG_NEVER) 196 return (false); 197 else if (colorflag == COLORFLAG_ALWAYS) 198 return (true); 199 #endif 200 return (do_color_from_env()); 201 } 202 203 #ifdef COLORLS 204 static bool 205 do_color_always(const char *term) 206 { 207 208 return (strcmp(term, "always") == 0 || strcmp(term, "yes") == 0 || 209 strcmp(term, "force") == 0); 210 } 211 212 static bool 213 do_color_never(const char *term) 214 { 215 216 return (strcmp(term, "never") == 0 || strcmp(term, "no") == 0 || 217 strcmp(term, "none") == 0); 218 } 219 220 static bool 221 do_color_auto(const char *term) 222 { 223 224 return (strcmp(term, "auto") == 0 || strcmp(term, "tty") == 0 || 225 strcmp(term, "if-tty") == 0); 226 } 227 #endif /* COLORLS */ 228 229 int 230 main(int argc, char *argv[]) 231 { 232 static char dot[] = ".", *dotav[] = {dot, NULL}; 233 struct winsize win; 234 int ch, fts_options, notused; 235 char *p; 236 const char *errstr = NULL; 237 #ifdef COLORLS 238 char termcapbuf[1024]; /* termcap definition buffer */ 239 char tcapbuf[512]; /* capability buffer */ 240 char *bp = tcapbuf, *term; 241 #endif 242 243 (void)setlocale(LC_ALL, ""); 244 245 /* Terminal defaults to -Cq, non-terminal defaults to -1. */ 246 if (isatty(STDOUT_FILENO)) { 247 termwidth = 80; 248 if ((p = getenv("COLUMNS")) != NULL && *p != '\0') 249 termwidth = strtonum(p, 0, INT_MAX, &errstr); 250 else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) != -1 && 251 win.ws_col > 0) 252 termwidth = win.ws_col; 253 f_nonprint = 1; 254 } else { 255 f_singlecol = 1; 256 /* retrieve environment variable, in case of explicit -C */ 257 p = getenv("COLUMNS"); 258 if (p) 259 termwidth = strtonum(p, 0, INT_MAX, &errstr); 260 } 261 262 if (errstr) 263 termwidth = 80; 264 265 fts_options = FTS_PHYSICAL; 266 if (getenv("LS_SAMESORT")) 267 f_samesort = 1; 268 269 /* 270 * For historical compatibility, we'll use our autodetection if CLICOLOR 271 * is set. 272 */ 273 #ifdef COLORLS 274 if (getenv("CLICOLOR")) 275 colorflag = COLORFLAG_AUTO; 276 #endif 277 while ((ch = getopt_long(argc, argv, 278 "+1ABCD:FGHILPRSTUWXZabcdfghiklmnopqrstuvwxy,", long_opts, 279 NULL)) != -1) { 280 switch (ch) { 281 /* 282 * The -1, -C, -x and -l options all override each other so 283 * shell aliasing works right. 284 */ 285 case '1': 286 f_singlecol = 1; 287 f_longform = 0; 288 f_stream = 0; 289 break; 290 case 'C': 291 f_sortacross = f_longform = f_singlecol = 0; 292 break; 293 case 'l': 294 f_longform = 1; 295 f_singlecol = 0; 296 f_stream = 0; 297 break; 298 case 'x': 299 f_sortacross = 1; 300 f_longform = 0; 301 f_singlecol = 0; 302 break; 303 /* The -c, -u, and -U options override each other. */ 304 case 'c': 305 f_statustime = 1; 306 f_accesstime = 0; 307 f_birthtime = 0; 308 break; 309 case 'u': 310 f_accesstime = 1; 311 f_statustime = 0; 312 f_birthtime = 0; 313 break; 314 case 'U': 315 f_birthtime = 1; 316 f_accesstime = 0; 317 f_statustime = 0; 318 break; 319 case 'f': 320 f_nosort = 1; 321 /* FALLTHROUGH */ 322 case 'a': 323 fts_options |= FTS_SEEDOT; 324 /* FALLTHROUGH */ 325 case 'A': 326 f_listdot = 1; 327 break; 328 /* The -t and -S options override each other. */ 329 case 'S': 330 f_sizesort = 1; 331 f_timesort = 0; 332 break; 333 case 't': 334 f_timesort = 1; 335 f_sizesort = 0; 336 break; 337 /* Other flags. Please keep alphabetic. */ 338 case ',': 339 f_thousands = 1; 340 break; 341 case 'B': 342 f_nonprint = 0; 343 f_octal = 1; 344 f_octal_escape = 0; 345 break; 346 case 'D': 347 f_timeformat = optarg; 348 break; 349 case 'F': 350 f_type = 1; 351 f_slash = 0; 352 break; 353 case 'G': 354 /* 355 * We both set CLICOLOR here and set colorflag to 356 * COLORFLAG_AUTO, because -G should not force color if 357 * stdout isn't a tty. 358 */ 359 setenv("CLICOLOR", "", 1); 360 #ifdef COLORLS 361 colorflag = COLORFLAG_AUTO; 362 #endif 363 break; 364 case 'H': 365 fts_options |= FTS_COMFOLLOW; 366 f_nofollow = 0; 367 break; 368 case 'I': 369 f_noautodot = 1; 370 break; 371 case 'L': 372 fts_options &= ~FTS_PHYSICAL; 373 fts_options |= FTS_LOGICAL; 374 f_nofollow = 0; 375 break; 376 case 'P': 377 fts_options &= ~FTS_COMFOLLOW; 378 fts_options &= ~FTS_LOGICAL; 379 fts_options |= FTS_PHYSICAL; 380 f_nofollow = 1; 381 break; 382 case 'R': 383 f_recursive = 1; 384 break; 385 case 'T': 386 f_sectime = 1; 387 break; 388 case 'W': 389 f_whiteout = 1; 390 break; 391 case 'Z': 392 f_label = 1; 393 break; 394 case 'b': 395 f_nonprint = 0; 396 f_octal = 0; 397 f_octal_escape = 1; 398 break; 399 /* The -d option turns off the -R option. */ 400 case 'd': 401 f_listdir = 1; 402 f_recursive = 0; 403 break; 404 case 'g': 405 f_longform = 1; 406 f_singlecol = 0; 407 f_stream = 0; 408 f_sowner = 1; 409 break; 410 case 'h': 411 f_humanval = 1; 412 break; 413 case 'i': 414 f_inode = 1; 415 break; 416 case 'k': 417 f_humanval = 0; 418 f_kblocks = 1; 419 break; 420 case 'm': 421 f_stream = 1; 422 f_singlecol = 0; 423 f_longform = 0; 424 break; 425 case 'n': 426 f_numericonly = 1; 427 f_longform = 1; 428 f_singlecol = 0; 429 f_stream = 0; 430 break; 431 case 'o': 432 f_flags = 1; 433 break; 434 case 'p': 435 f_slash = 1; 436 f_type = 1; 437 break; 438 case 'q': 439 f_nonprint = 1; 440 f_octal = 0; 441 f_octal_escape = 0; 442 break; 443 case 'r': 444 f_reversesort = 1; 445 break; 446 case 's': 447 f_size = 1; 448 break; 449 case 'v': 450 f_verssort = 1; 451 break; 452 case 'w': 453 f_nonprint = 0; 454 f_octal = 0; 455 f_octal_escape = 0; 456 break; 457 case 'y': 458 f_samesort = 1; 459 break; 460 case COLOR_OPT: 461 #ifdef COLORLS 462 if (optarg == NULL || do_color_always(optarg)) 463 colorflag = COLORFLAG_ALWAYS; 464 else if (do_color_auto(optarg)) 465 colorflag = COLORFLAG_AUTO; 466 else if (do_color_never(optarg)) 467 colorflag = COLORFLAG_NEVER; 468 else 469 errx(2, "unsupported --color value '%s' (must be always, auto, or never)", 470 optarg); 471 break; 472 #else 473 warnx("color support not compiled in"); 474 #endif 475 default: 476 case '?': 477 usage(); 478 } 479 } 480 argc -= optind; 481 argv += optind; 482 483 /* Root is -A automatically unless -I. */ 484 if (!f_listdot && getuid() == (uid_t)0 && !f_noautodot) 485 f_listdot = 1; 486 487 /* 488 * Enabling of colours is conditional on the environment in conjunction 489 * with the --color and -G arguments, if supplied. 490 */ 491 if (do_color()) { 492 #ifdef COLORLS 493 if ((term = getenv("TERM")) != NULL && 494 tgetent(termcapbuf, term) == 1) { 495 ansi_fgcol = tgetstr("AF", &bp); 496 ansi_bgcol = tgetstr("AB", &bp); 497 attrs_off = tgetstr("me", &bp); 498 enter_bold = tgetstr("md", &bp); 499 enter_underline = tgetstr("us", &bp); 500 501 /* To switch colours off use 'op' if 502 * available, otherwise use 'oc', or 503 * don't do colours at all. */ 504 ansi_coloff = tgetstr("op", &bp); 505 if (!ansi_coloff) 506 ansi_coloff = tgetstr("oc", &bp); 507 if (ansi_fgcol && ansi_bgcol && ansi_coloff) 508 f_color = 1; 509 } else if (colorflag == COLORFLAG_ALWAYS) { 510 /* 511 * If we're *always* doing color but we don't have 512 * a functional TERM supplied, we'll fallback to 513 * outputting raw ANSI sequences. 514 */ 515 f_color = 1; 516 explicitansi = true; 517 } 518 #endif /*COLORLS*/ 519 } 520 521 #ifdef COLORLS 522 if (f_color) { 523 /* 524 * We can't put tabs and color sequences together: 525 * column number will be incremented incorrectly 526 * for "stty oxtabs" mode. 527 */ 528 f_notabs = 1; 529 (void)signal(SIGINT, colorquit); 530 (void)signal(SIGQUIT, colorquit); 531 parsecolors(getenv("LSCOLORS")); 532 } 533 #endif 534 535 /* 536 * If not -F, -i, -l, -s, -S or -t options, don't require stat 537 * information, unless in color mode in which case we do 538 * need this to determine which colors to display. 539 */ 540 if (!f_inode && !f_longform && !f_size && !f_timesort && 541 !f_sizesort && !f_type 542 #ifdef COLORLS 543 && !f_color 544 #endif 545 ) 546 fts_options |= FTS_NOSTAT; 547 548 /* 549 * If not -F, -P, -d or -l options, follow any symbolic links listed on 550 * the command line, unless in color mode in which case we need to 551 * distinguish file type for a symbolic link itself and its target. 552 */ 553 if (!f_nofollow && !f_longform && !f_listdir && (!f_type || f_slash) 554 #ifdef COLORLS 555 && !f_color 556 #endif 557 ) 558 fts_options |= FTS_COMFOLLOW; 559 560 /* 561 * If -W, show whiteout entries 562 */ 563 #ifdef FTS_WHITEOUT 564 if (f_whiteout) 565 fts_options |= FTS_WHITEOUT; 566 #endif 567 568 /* If -i, -l or -s, figure out block size. */ 569 if (f_inode || f_longform || f_size) { 570 if (f_kblocks) 571 blocksize = 2; 572 else { 573 (void)getbsize(¬used, &blocksize); 574 blocksize /= 512; 575 } 576 } 577 /* Select a sort function. */ 578 if (f_reversesort) { 579 if (f_sizesort) 580 sortfcn = revsizecmp; 581 else if (f_verssort) 582 sortfcn = revverscmp; 583 else if (!f_timesort) 584 sortfcn = revnamecmp; 585 else if (f_accesstime) 586 sortfcn = revacccmp; 587 else if (f_birthtime) 588 sortfcn = revbirthcmp; 589 else if (f_statustime) 590 sortfcn = revstatcmp; 591 else /* Use modification time. */ 592 sortfcn = revmodcmp; 593 } else { 594 if (f_sizesort) 595 sortfcn = sizecmp; 596 else if (f_verssort) 597 sortfcn = verscmp; 598 else if (!f_timesort) 599 sortfcn = namecmp; 600 else if (f_accesstime) 601 sortfcn = acccmp; 602 else if (f_birthtime) 603 sortfcn = birthcmp; 604 else if (f_statustime) 605 sortfcn = statcmp; 606 else /* Use modification time. */ 607 sortfcn = modcmp; 608 } 609 610 /* Select a print function. */ 611 if (f_singlecol) 612 printfcn = printscol; 613 else if (f_longform) 614 printfcn = printlong; 615 else if (f_stream) 616 printfcn = printstream; 617 else 618 printfcn = printcol; 619 620 if (argc) 621 traverse(argc, argv, fts_options); 622 else 623 traverse(1, dotav, fts_options); 624 exit(rval); 625 } 626 627 static int output; /* If anything output. */ 628 629 /* 630 * Traverse() walks the logical directory structure specified by the argv list 631 * in the order specified by the mastercmp() comparison function. During the 632 * traversal it passes linked lists of structures to display() which represent 633 * a superset (may be exact set) of the files to be displayed. 634 */ 635 static void 636 traverse(int argc, char *argv[], int options) 637 { 638 FTS *ftsp; 639 FTSENT *p, *chp; 640 int ch_options; 641 642 if ((ftsp = 643 fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL) 644 err(1, "fts_open"); 645 646 /* 647 * We ignore errors from fts_children here since they will be 648 * replicated and signalled on the next call to fts_read() below. 649 */ 650 chp = fts_children(ftsp, 0); 651 if (chp != NULL) 652 display(NULL, chp, options); 653 if (f_listdir) 654 return; 655 656 /* 657 * If not recursing down this tree and don't need stat info, just get 658 * the names. 659 */ 660 ch_options = !f_recursive && !f_label && 661 options & FTS_NOSTAT ? FTS_NAMEONLY : 0; 662 663 while (errno = 0, (p = fts_read(ftsp)) != NULL) 664 switch (p->fts_info) { 665 case FTS_DC: 666 warnx("%s: directory causes a cycle", p->fts_name); 667 break; 668 case FTS_DNR: 669 case FTS_ERR: 670 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 671 rval = 1; 672 break; 673 case FTS_D: 674 if (p->fts_level != FTS_ROOTLEVEL && 675 p->fts_name[0] == '.' && !f_listdot) 676 break; 677 678 /* 679 * If already output something, put out a newline as 680 * a separator. If multiple arguments, precede each 681 * directory with its name. 682 */ 683 if (output) { 684 putchar('\n'); 685 (void)printname(p->fts_path); 686 puts(":"); 687 } else if (argc > 1) { 688 (void)printname(p->fts_path); 689 puts(":"); 690 output = 1; 691 } 692 chp = fts_children(ftsp, ch_options); 693 display(p, chp, options); 694 695 if (!f_recursive && chp != NULL) 696 (void)fts_set(ftsp, p, FTS_SKIP); 697 break; 698 default: 699 break; 700 } 701 if (errno) 702 err(1, "fts_read"); 703 } 704 705 /* 706 * Display() takes a linked list of FTSENT structures and passes the list 707 * along with any other necessary information to the print function. P 708 * points to the parent directory of the display list. 709 */ 710 static void 711 display(const FTSENT *p, FTSENT *list, int options) 712 { 713 struct stat *sp; 714 DISPLAY d; 715 FTSENT *cur; 716 NAMES *np; 717 off_t maxsize; 718 long maxblock; 719 uintmax_t maxinode; 720 u_long btotal, labelstrlen, maxlen, maxnlink; 721 u_long maxlabelstr; 722 u_int sizelen; 723 int maxflags; 724 gid_t maxgroup; 725 uid_t maxuser; 726 size_t flen, ulen, glen; 727 char *initmax; 728 int entries, needstats; 729 const char *user, *group; 730 char *flags, *labelstr = NULL; 731 char ngroup[STRBUF_SIZEOF(uid_t) + 1]; 732 char nuser[STRBUF_SIZEOF(gid_t) + 1]; 733 u_long width[9]; 734 int i; 735 736 needstats = f_inode || f_longform || f_size; 737 flen = 0; 738 btotal = 0; 739 740 #define LS_COLWIDTHS_FIELDS 9 741 initmax = getenv("LS_COLWIDTHS"); 742 743 for (i = 0 ; i < LS_COLWIDTHS_FIELDS; i++) 744 width[i] = 0; 745 746 if (initmax != NULL) { 747 char *endp; 748 749 for (i = 0; i < LS_COLWIDTHS_FIELDS && *initmax != '\0'; i++) { 750 if (*initmax == ':') { 751 width[i] = 0; 752 } else { 753 width[i] = strtoul(initmax, &endp, 10); 754 initmax = endp; 755 while (isspace(*initmax)) 756 initmax++; 757 if (*initmax != ':') 758 break; 759 initmax++; 760 } 761 } 762 if (i < LS_COLWIDTHS_FIELDS) 763 #ifdef COLORLS 764 if (!f_color) 765 #endif 766 f_notabs = 0; 767 } 768 769 /* Fields match -lios order. New ones should be added at the end. */ 770 maxinode = width[0]; 771 maxblock = width[1]; 772 maxnlink = width[2]; 773 maxuser = width[3]; 774 maxgroup = width[4]; 775 maxflags = width[5]; 776 maxsize = width[6]; 777 maxlen = width[7]; 778 maxlabelstr = width[8]; 779 780 MAKENINES(maxinode); 781 MAKENINES(maxblock); 782 MAKENINES(maxnlink); 783 MAKENINES(maxsize); 784 785 d.s_size = 0; 786 sizelen = 0; 787 flags = NULL; 788 for (cur = list, entries = 0; cur; cur = cur->fts_link) { 789 if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) { 790 warnx("%s: %s", 791 cur->fts_name, strerror(cur->fts_errno)); 792 cur->fts_number = NO_PRINT; 793 rval = 1; 794 continue; 795 } 796 /* 797 * P is NULL if list is the argv list, to which different rules 798 * apply. 799 */ 800 if (p == NULL) { 801 /* Directories will be displayed later. */ 802 if (cur->fts_info == FTS_D && !f_listdir) { 803 cur->fts_number = NO_PRINT; 804 continue; 805 } 806 } else { 807 /* Only display dot file if -a/-A set. */ 808 if (cur->fts_name[0] == '.' && !f_listdot) { 809 cur->fts_number = NO_PRINT; 810 continue; 811 } 812 } 813 if (cur->fts_namelen > maxlen) 814 maxlen = cur->fts_namelen; 815 if (f_octal || f_octal_escape) { 816 u_long t = len_octal(cur->fts_name, cur->fts_namelen); 817 818 if (t > maxlen) 819 maxlen = t; 820 } 821 if (needstats) { 822 sp = cur->fts_statp; 823 if (sp->st_blocks > maxblock) 824 maxblock = sp->st_blocks; 825 if (sp->st_ino > maxinode) 826 maxinode = sp->st_ino; 827 if (sp->st_nlink > maxnlink) 828 maxnlink = sp->st_nlink; 829 if (sp->st_size > maxsize) 830 maxsize = sp->st_size; 831 832 btotal += sp->st_blocks; 833 if (f_longform) { 834 if (f_numericonly) { 835 (void)snprintf(nuser, sizeof(nuser), 836 "%u", sp->st_uid); 837 (void)snprintf(ngroup, sizeof(ngroup), 838 "%u", sp->st_gid); 839 user = nuser; 840 group = ngroup; 841 } else { 842 user = user_from_uid(sp->st_uid, 0); 843 /* 844 * user_from_uid(..., 0) only returns 845 * NULL in OOM conditions. We could 846 * format the uid here, but (1) in 847 * general ls(1) exits on OOM, and (2) 848 * there is another allocation/exit 849 * path directly below, which will 850 * likely exit anyway. 851 */ 852 if (user == NULL) 853 err(1, "user_from_uid"); 854 group = group_from_gid(sp->st_gid, 0); 855 /* Ditto. */ 856 if (group == NULL) 857 err(1, "group_from_gid"); 858 } 859 if ((ulen = strlen(user)) > maxuser) 860 maxuser = ulen; 861 if ((glen = strlen(group)) > maxgroup) 862 maxgroup = glen; 863 if (f_flags) { 864 flags = fflagstostr(sp->st_flags); 865 if (flags != NULL && *flags == '\0') { 866 free(flags); 867 flags = strdup("-"); 868 } 869 if (flags == NULL) 870 err(1, "fflagstostr"); 871 flen = strlen(flags); 872 if (flen > (size_t)maxflags) 873 maxflags = flen; 874 } else 875 flen = 0; 876 labelstr = NULL; 877 if (f_label) { 878 char name[PATH_MAX + 1]; 879 mac_t label; 880 int error; 881 882 error = mac_prepare_file_label(&label); 883 if (error == -1) { 884 warn("MAC label for %s/%s", 885 cur->fts_parent->fts_path, 886 cur->fts_name); 887 goto label_out; 888 } 889 890 if (cur->fts_level == FTS_ROOTLEVEL) 891 snprintf(name, sizeof(name), 892 "%s", cur->fts_name); 893 else 894 snprintf(name, sizeof(name), 895 "%s/%s", cur->fts_parent-> 896 fts_accpath, cur->fts_name); 897 898 if (options & FTS_LOGICAL) 899 error = mac_get_file(name, 900 label); 901 else 902 error = mac_get_link(name, 903 label); 904 if (error == -1) { 905 warn("MAC label for %s/%s", 906 cur->fts_parent->fts_path, 907 cur->fts_name); 908 mac_free(label); 909 goto label_out; 910 } 911 912 error = mac_to_text(label, 913 &labelstr); 914 if (error == -1) { 915 warn("MAC label for %s/%s", 916 cur->fts_parent->fts_path, 917 cur->fts_name); 918 mac_free(label); 919 goto label_out; 920 } 921 mac_free(label); 922 label_out: 923 if (labelstr == NULL) 924 labelstr = strdup("-"); 925 labelstrlen = strlen(labelstr); 926 if (labelstrlen > maxlabelstr) 927 maxlabelstr = labelstrlen; 928 } else 929 labelstrlen = 0; 930 931 if ((np = malloc(sizeof(NAMES) + labelstrlen + 932 ulen + glen + flen + 4)) == NULL) 933 err(1, "malloc"); 934 935 np->user = &np->data[0]; 936 (void)strcpy(np->user, user); 937 np->group = &np->data[ulen + 1]; 938 (void)strcpy(np->group, group); 939 940 if (S_ISCHR(sp->st_mode) || 941 S_ISBLK(sp->st_mode)) { 942 sizelen = snprintf(NULL, 0, 943 "%#jx", (uintmax_t)sp->st_rdev); 944 if (d.s_size < sizelen) 945 d.s_size = sizelen; 946 } 947 948 if (f_flags) { 949 np->flags = &np->data[ulen + glen + 2]; 950 (void)strcpy(np->flags, flags); 951 free(flags); 952 } 953 if (f_label) { 954 np->label = &np->data[ulen + glen + 2 955 + (f_flags ? flen + 1 : 0)]; 956 (void)strcpy(np->label, labelstr); 957 free(labelstr); 958 } 959 cur->fts_pointer = np; 960 } 961 } 962 ++entries; 963 } 964 965 /* 966 * If there are no entries to display, we normally stop right 967 * here. However, we must continue if we have to display the 968 * total block count. In this case, we display the total only 969 * on the second (p != NULL) pass. 970 */ 971 if (!entries && (!(f_longform || f_size) || p == NULL)) 972 return; 973 974 d.list = list; 975 d.entries = entries; 976 d.maxlen = maxlen; 977 if (needstats) { 978 d.btotal = btotal; 979 d.s_block = snprintf(NULL, 0, "%lu", howmany(maxblock, blocksize)); 980 d.s_flags = maxflags; 981 d.s_label = maxlabelstr; 982 d.s_group = maxgroup; 983 d.s_inode = snprintf(NULL, 0, "%ju", maxinode); 984 d.s_nlink = snprintf(NULL, 0, "%lu", maxnlink); 985 sizelen = f_humanval ? HUMANVALSTR_LEN : 986 snprintf(NULL, 0, "%ju", maxsize); 987 if (d.s_size < sizelen) 988 d.s_size = sizelen; 989 d.s_user = maxuser; 990 } 991 if (f_thousands) /* make space for commas */ 992 d.s_size += (d.s_size - 1) / 3; 993 printfcn(&d); 994 output = 1; 995 996 if (f_longform) 997 for (cur = list; cur; cur = cur->fts_link) 998 free(cur->fts_pointer); 999 } 1000 1001 /* 1002 * Ordering for mastercmp: 1003 * If ordering the argv (fts_level = FTS_ROOTLEVEL) return non-directories 1004 * as larger than directories. Within either group, use the sort function. 1005 * All other levels use the sort function. Error entries remain unsorted. 1006 */ 1007 static int 1008 mastercmp(const FTSENT * const *a, const FTSENT * const *b) 1009 { 1010 int a_info, b_info; 1011 1012 a_info = (*a)->fts_info; 1013 if (a_info == FTS_ERR) 1014 return (0); 1015 b_info = (*b)->fts_info; 1016 if (b_info == FTS_ERR) 1017 return (0); 1018 1019 if (a_info == FTS_NS || b_info == FTS_NS) 1020 return (namecmp(*a, *b)); 1021 1022 if (a_info != b_info && 1023 (*a)->fts_level == FTS_ROOTLEVEL && !f_listdir) { 1024 if (a_info == FTS_D) 1025 return (1); 1026 if (b_info == FTS_D) 1027 return (-1); 1028 } 1029 return (sortfcn(*a, *b)); 1030 } 1031