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