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 int f_samesort; /* sort time and name in same direction */ 140 int f_sectime; /* print full time information */ 141 static int f_singlecol; /* use single column output */ 142 int f_size; /* list size in short listing */ 143 static int f_sizesort; 144 int f_slash; /* similar to f_type, but only for dirs */ 145 int f_sortacross; /* sort across rows, not down columns */ 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 #endif 163 164 static int rval; 165 166 static bool 167 do_color_from_env(void) 168 { 169 const char *p; 170 bool doit; 171 172 doit = false; 173 p = getenv("CLICOLOR"); 174 if (p == NULL) { 175 /* 176 * COLORTERM is the more standard name for this variable. We'll 177 * honor it as long as it's both set and not empty. 178 */ 179 p = getenv("COLORTERM"); 180 if (p != NULL && *p != '\0') 181 doit = true; 182 } else 183 doit = true; 184 185 return (doit && 186 (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE"))); 187 } 188 189 static bool 190 do_color(void) 191 { 192 193 #ifdef COLORLS 194 if (colorflag == COLORFLAG_NEVER) 195 return (false); 196 else if (colorflag == COLORFLAG_ALWAYS) 197 return (true); 198 #endif 199 return (do_color_from_env()); 200 } 201 202 #ifdef COLORLS 203 static bool 204 do_color_always(const char *term) 205 { 206 207 return (strcmp(term, "always") == 0 || strcmp(term, "yes") == 0 || 208 strcmp(term, "force") == 0); 209 } 210 211 static bool 212 do_color_never(const char *term) 213 { 214 215 return (strcmp(term, "never") == 0 || strcmp(term, "no") == 0 || 216 strcmp(term, "none") == 0); 217 } 218 219 static bool 220 do_color_auto(const char *term) 221 { 222 223 return (strcmp(term, "auto") == 0 || strcmp(term, "tty") == 0 || 224 strcmp(term, "if-tty") == 0); 225 } 226 #endif /* COLORLS */ 227 228 int 229 main(int argc, char *argv[]) 230 { 231 static char dot[] = ".", *dotav[] = {dot, NULL}; 232 struct winsize win; 233 int ch, fts_options, notused; 234 char *p; 235 const char *errstr = NULL; 236 #ifdef COLORLS 237 char termcapbuf[1024]; /* termcap definition buffer */ 238 char tcapbuf[512]; /* capability buffer */ 239 char *bp = tcapbuf, *term; 240 #endif 241 242 (void)setlocale(LC_ALL, ""); 243 244 /* Terminal defaults to -Cq, non-terminal defaults to -1. */ 245 if (isatty(STDOUT_FILENO)) { 246 termwidth = 80; 247 if ((p = getenv("COLUMNS")) != NULL && *p != '\0') 248 termwidth = strtonum(p, 0, INT_MAX, &errstr); 249 else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) != -1 && 250 win.ws_col > 0) 251 termwidth = win.ws_col; 252 f_nonprint = 1; 253 } else { 254 f_singlecol = 1; 255 /* retrieve environment variable, in case of explicit -C */ 256 p = getenv("COLUMNS"); 257 if (p) 258 termwidth = strtonum(p, 0, INT_MAX, &errstr); 259 } 260 261 if (errstr) 262 termwidth = 80; 263 264 fts_options = FTS_PHYSICAL; 265 if (getenv("LS_SAMESORT")) 266 f_samesort = 1; 267 268 /* 269 * For historical compatibility, we'll use our autodetection if CLICOLOR 270 * is set. 271 */ 272 #ifdef COLORLS 273 if (getenv("CLICOLOR")) 274 colorflag = COLORFLAG_AUTO; 275 #endif 276 while ((ch = getopt_long(argc, argv, 277 "+1ABCD:FGHILPRSTUWXZabcdfghiklmnopqrstuwxy,", long_opts, 278 NULL)) != -1) { 279 switch (ch) { 280 /* 281 * The -1, -C, -x and -l options all override each other so 282 * shell aliasing works right. 283 */ 284 case '1': 285 f_singlecol = 1; 286 f_longform = 0; 287 f_stream = 0; 288 break; 289 case 'C': 290 f_sortacross = f_longform = f_singlecol = 0; 291 break; 292 case 'l': 293 f_longform = 1; 294 f_singlecol = 0; 295 f_stream = 0; 296 break; 297 case 'x': 298 f_sortacross = 1; 299 f_longform = 0; 300 f_singlecol = 0; 301 break; 302 /* The -c, -u, and -U options override each other. */ 303 case 'c': 304 f_statustime = 1; 305 f_accesstime = 0; 306 f_birthtime = 0; 307 break; 308 case 'u': 309 f_accesstime = 1; 310 f_statustime = 0; 311 f_birthtime = 0; 312 break; 313 case 'U': 314 f_birthtime = 1; 315 f_accesstime = 0; 316 f_statustime = 0; 317 break; 318 case 'f': 319 f_nosort = 1; 320 /* FALLTHROUGH */ 321 case 'a': 322 fts_options |= FTS_SEEDOT; 323 /* FALLTHROUGH */ 324 case 'A': 325 f_listdot = 1; 326 break; 327 /* The -t and -S options override each other. */ 328 case 'S': 329 f_sizesort = 1; 330 f_timesort = 0; 331 break; 332 case 't': 333 f_timesort = 1; 334 f_sizesort = 0; 335 break; 336 /* Other flags. Please keep alphabetic. */ 337 case ',': 338 f_thousands = 1; 339 break; 340 case 'B': 341 f_nonprint = 0; 342 f_octal = 1; 343 f_octal_escape = 0; 344 break; 345 case 'D': 346 f_timeformat = optarg; 347 break; 348 case 'F': 349 f_type = 1; 350 f_slash = 0; 351 break; 352 case 'G': 353 /* 354 * We both set CLICOLOR here and set colorflag to 355 * COLORFLAG_AUTO, because -G should not force color if 356 * stdout isn't a tty. 357 */ 358 setenv("CLICOLOR", "", 1); 359 #ifdef COLORLS 360 colorflag = COLORFLAG_AUTO; 361 #endif 362 break; 363 case 'H': 364 fts_options |= FTS_COMFOLLOW; 365 f_nofollow = 0; 366 break; 367 case 'I': 368 f_noautodot = 1; 369 break; 370 case 'L': 371 fts_options &= ~FTS_PHYSICAL; 372 fts_options |= FTS_LOGICAL; 373 f_nofollow = 0; 374 break; 375 case 'P': 376 fts_options &= ~FTS_COMFOLLOW; 377 fts_options &= ~FTS_LOGICAL; 378 fts_options |= FTS_PHYSICAL; 379 f_nofollow = 1; 380 break; 381 case 'R': 382 f_recursive = 1; 383 break; 384 case 'T': 385 f_sectime = 1; 386 break; 387 case 'W': 388 f_whiteout = 1; 389 break; 390 case 'Z': 391 f_label = 1; 392 break; 393 case 'b': 394 f_nonprint = 0; 395 f_octal = 0; 396 f_octal_escape = 1; 397 break; 398 /* The -d option turns off the -R option. */ 399 case 'd': 400 f_listdir = 1; 401 f_recursive = 0; 402 break; 403 case 'g': /* Compatibility with 4.3BSD. */ 404 break; 405 case 'h': 406 f_humanval = 1; 407 break; 408 case 'i': 409 f_inode = 1; 410 break; 411 case 'k': 412 f_humanval = 0; 413 f_kblocks = 1; 414 break; 415 case 'm': 416 f_stream = 1; 417 f_singlecol = 0; 418 f_longform = 0; 419 break; 420 case 'n': 421 f_numericonly = 1; 422 break; 423 case 'o': 424 f_flags = 1; 425 break; 426 case 'p': 427 f_slash = 1; 428 f_type = 1; 429 break; 430 case 'q': 431 f_nonprint = 1; 432 f_octal = 0; 433 f_octal_escape = 0; 434 break; 435 case 'r': 436 f_reversesort = 1; 437 break; 438 case 's': 439 f_size = 1; 440 break; 441 case 'w': 442 f_nonprint = 0; 443 f_octal = 0; 444 f_octal_escape = 0; 445 break; 446 case 'y': 447 f_samesort = 1; 448 break; 449 case COLOR_OPT: 450 #ifdef COLORLS 451 if (optarg == NULL || do_color_always(optarg)) 452 colorflag = COLORFLAG_ALWAYS; 453 else if (do_color_auto(optarg)) 454 colorflag = COLORFLAG_AUTO; 455 else if (do_color_never(optarg)) 456 colorflag = COLORFLAG_NEVER; 457 else 458 errx(2, "unsupported --color value '%s' (must be always, auto, or never)", 459 optarg); 460 break; 461 #else 462 warnx("color support not compiled in"); 463 #endif 464 default: 465 case '?': 466 usage(); 467 } 468 } 469 argc -= optind; 470 argv += optind; 471 472 /* Root is -A automatically unless -I. */ 473 if (!f_listdot && getuid() == (uid_t)0 && !f_noautodot) 474 f_listdot = 1; 475 476 /* 477 * Enabling of colours is conditional on the environment in conjunction 478 * with the --color and -G arguments, if supplied. 479 */ 480 if (do_color()) { 481 #ifdef COLORLS 482 if ((term = getenv("TERM")) != NULL && 483 tgetent(termcapbuf, term) == 1) { 484 ansi_fgcol = tgetstr("AF", &bp); 485 ansi_bgcol = tgetstr("AB", &bp); 486 attrs_off = tgetstr("me", &bp); 487 enter_bold = tgetstr("md", &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_timesort && !f_sizesort) 568 sortfcn = revnamecmp; 569 else if (f_sizesort) 570 sortfcn = revsizecmp; 571 else if (f_accesstime) 572 sortfcn = revacccmp; 573 else if (f_birthtime) 574 sortfcn = revbirthcmp; 575 else if (f_statustime) 576 sortfcn = revstatcmp; 577 else /* Use modification time. */ 578 sortfcn = revmodcmp; 579 } else { 580 if (!f_timesort && !f_sizesort) 581 sortfcn = namecmp; 582 else if (f_sizesort) 583 sortfcn = sizecmp; 584 else if (f_accesstime) 585 sortfcn = acccmp; 586 else if (f_birthtime) 587 sortfcn = birthcmp; 588 else if (f_statustime) 589 sortfcn = statcmp; 590 else /* Use modification time. */ 591 sortfcn = modcmp; 592 } 593 594 /* Select a print function. */ 595 if (f_singlecol) 596 printfcn = printscol; 597 else if (f_longform) 598 printfcn = printlong; 599 else if (f_stream) 600 printfcn = printstream; 601 else 602 printfcn = printcol; 603 604 if (argc) 605 traverse(argc, argv, fts_options); 606 else 607 traverse(1, dotav, fts_options); 608 exit(rval); 609 } 610 611 static int output; /* If anything output. */ 612 613 /* 614 * Traverse() walks the logical directory structure specified by the argv list 615 * in the order specified by the mastercmp() comparison function. During the 616 * traversal it passes linked lists of structures to display() which represent 617 * a superset (may be exact set) of the files to be displayed. 618 */ 619 static void 620 traverse(int argc, char *argv[], int options) 621 { 622 FTS *ftsp; 623 FTSENT *p, *chp; 624 int ch_options; 625 626 if ((ftsp = 627 fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL) 628 err(1, "fts_open"); 629 630 /* 631 * We ignore errors from fts_children here since they will be 632 * replicated and signalled on the next call to fts_read() below. 633 */ 634 chp = fts_children(ftsp, 0); 635 if (chp != NULL) 636 display(NULL, chp, options); 637 if (f_listdir) 638 return; 639 640 /* 641 * If not recursing down this tree and don't need stat info, just get 642 * the names. 643 */ 644 ch_options = !f_recursive && !f_label && 645 options & FTS_NOSTAT ? FTS_NAMEONLY : 0; 646 647 while (errno = 0, (p = fts_read(ftsp)) != NULL) 648 switch (p->fts_info) { 649 case FTS_DC: 650 warnx("%s: directory causes a cycle", p->fts_name); 651 break; 652 case FTS_DNR: 653 case FTS_ERR: 654 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 655 rval = 1; 656 break; 657 case FTS_D: 658 if (p->fts_level != FTS_ROOTLEVEL && 659 p->fts_name[0] == '.' && !f_listdot) 660 break; 661 662 /* 663 * If already output something, put out a newline as 664 * a separator. If multiple arguments, precede each 665 * directory with its name. 666 */ 667 if (output) { 668 putchar('\n'); 669 (void)printname(p->fts_path); 670 puts(":"); 671 } else if (argc > 1) { 672 (void)printname(p->fts_path); 673 puts(":"); 674 output = 1; 675 } 676 chp = fts_children(ftsp, ch_options); 677 display(p, chp, options); 678 679 if (!f_recursive && chp != NULL) 680 (void)fts_set(ftsp, p, FTS_SKIP); 681 break; 682 default: 683 break; 684 } 685 if (errno) 686 err(1, "fts_read"); 687 } 688 689 /* 690 * Display() takes a linked list of FTSENT structures and passes the list 691 * along with any other necessary information to the print function. P 692 * points to the parent directory of the display list. 693 */ 694 static void 695 display(const FTSENT *p, FTSENT *list, int options) 696 { 697 struct stat *sp; 698 DISPLAY d; 699 FTSENT *cur; 700 NAMES *np; 701 off_t maxsize; 702 long maxblock; 703 uintmax_t maxinode; 704 u_long btotal, labelstrlen, maxlen, maxnlink; 705 u_long maxlabelstr; 706 u_int sizelen; 707 int maxflags; 708 gid_t maxgroup; 709 uid_t maxuser; 710 size_t flen, ulen, glen; 711 char *initmax; 712 int entries, needstats; 713 const char *user, *group; 714 char *flags, *labelstr = NULL; 715 char ngroup[STRBUF_SIZEOF(uid_t) + 1]; 716 char nuser[STRBUF_SIZEOF(gid_t) + 1]; 717 u_long width[9]; 718 int i; 719 720 needstats = f_inode || f_longform || f_size; 721 flen = 0; 722 btotal = 0; 723 724 #define LS_COLWIDTHS_FIELDS 9 725 initmax = getenv("LS_COLWIDTHS"); 726 727 for (i = 0 ; i < LS_COLWIDTHS_FIELDS; i++) 728 width[i] = 0; 729 730 if (initmax != NULL) { 731 char *endp; 732 733 for (i = 0; i < LS_COLWIDTHS_FIELDS && *initmax != '\0'; i++) { 734 if (*initmax == ':') { 735 width[i] = 0; 736 } else { 737 width[i] = strtoul(initmax, &endp, 10); 738 initmax = endp; 739 while (isspace(*initmax)) 740 initmax++; 741 if (*initmax != ':') 742 break; 743 initmax++; 744 } 745 } 746 if (i < LS_COLWIDTHS_FIELDS) 747 #ifdef COLORLS 748 if (!f_color) 749 #endif 750 f_notabs = 0; 751 } 752 753 /* Fields match -lios order. New ones should be added at the end. */ 754 maxinode = width[0]; 755 maxblock = width[1]; 756 maxnlink = width[2]; 757 maxuser = width[3]; 758 maxgroup = width[4]; 759 maxflags = width[5]; 760 maxsize = width[6]; 761 maxlen = width[7]; 762 maxlabelstr = width[8]; 763 764 MAKENINES(maxinode); 765 MAKENINES(maxblock); 766 MAKENINES(maxnlink); 767 MAKENINES(maxsize); 768 769 d.s_size = 0; 770 sizelen = 0; 771 flags = NULL; 772 for (cur = list, entries = 0; cur; cur = cur->fts_link) { 773 if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) { 774 warnx("%s: %s", 775 cur->fts_name, strerror(cur->fts_errno)); 776 cur->fts_number = NO_PRINT; 777 rval = 1; 778 continue; 779 } 780 /* 781 * P is NULL if list is the argv list, to which different rules 782 * apply. 783 */ 784 if (p == NULL) { 785 /* Directories will be displayed later. */ 786 if (cur->fts_info == FTS_D && !f_listdir) { 787 cur->fts_number = NO_PRINT; 788 continue; 789 } 790 } else { 791 /* Only display dot file if -a/-A set. */ 792 if (cur->fts_name[0] == '.' && !f_listdot) { 793 cur->fts_number = NO_PRINT; 794 continue; 795 } 796 } 797 if (cur->fts_namelen > maxlen) 798 maxlen = cur->fts_namelen; 799 if (f_octal || f_octal_escape) { 800 u_long t = len_octal(cur->fts_name, cur->fts_namelen); 801 802 if (t > maxlen) 803 maxlen = t; 804 } 805 if (needstats) { 806 sp = cur->fts_statp; 807 if (sp->st_blocks > maxblock) 808 maxblock = sp->st_blocks; 809 if (sp->st_ino > maxinode) 810 maxinode = sp->st_ino; 811 if (sp->st_nlink > maxnlink) 812 maxnlink = sp->st_nlink; 813 if (sp->st_size > maxsize) 814 maxsize = sp->st_size; 815 816 btotal += sp->st_blocks; 817 if (f_longform) { 818 if (f_numericonly) { 819 (void)snprintf(nuser, sizeof(nuser), 820 "%u", sp->st_uid); 821 (void)snprintf(ngroup, sizeof(ngroup), 822 "%u", sp->st_gid); 823 user = nuser; 824 group = ngroup; 825 } else { 826 user = user_from_uid(sp->st_uid, 0); 827 /* 828 * user_from_uid(..., 0) only returns 829 * NULL in OOM conditions. We could 830 * format the uid here, but (1) in 831 * general ls(1) exits on OOM, and (2) 832 * there is another allocation/exit 833 * path directly below, which will 834 * likely exit anyway. 835 */ 836 if (user == NULL) 837 err(1, "user_from_uid"); 838 group = group_from_gid(sp->st_gid, 0); 839 /* Ditto. */ 840 if (group == NULL) 841 err(1, "group_from_gid"); 842 } 843 if ((ulen = strlen(user)) > maxuser) 844 maxuser = ulen; 845 if ((glen = strlen(group)) > maxgroup) 846 maxgroup = glen; 847 if (f_flags) { 848 flags = fflagstostr(sp->st_flags); 849 if (flags != NULL && *flags == '\0') { 850 free(flags); 851 flags = strdup("-"); 852 } 853 if (flags == NULL) 854 err(1, "fflagstostr"); 855 flen = strlen(flags); 856 if (flen > (size_t)maxflags) 857 maxflags = flen; 858 } else 859 flen = 0; 860 labelstr = NULL; 861 if (f_label) { 862 char name[PATH_MAX + 1]; 863 mac_t label; 864 int error; 865 866 error = mac_prepare_file_label(&label); 867 if (error == -1) { 868 warn("MAC label for %s/%s", 869 cur->fts_parent->fts_path, 870 cur->fts_name); 871 goto label_out; 872 } 873 874 if (cur->fts_level == FTS_ROOTLEVEL) 875 snprintf(name, sizeof(name), 876 "%s", cur->fts_name); 877 else 878 snprintf(name, sizeof(name), 879 "%s/%s", cur->fts_parent-> 880 fts_accpath, cur->fts_name); 881 882 if (options & FTS_LOGICAL) 883 error = mac_get_file(name, 884 label); 885 else 886 error = mac_get_link(name, 887 label); 888 if (error == -1) { 889 warn("MAC label for %s/%s", 890 cur->fts_parent->fts_path, 891 cur->fts_name); 892 mac_free(label); 893 goto label_out; 894 } 895 896 error = mac_to_text(label, 897 &labelstr); 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 mac_free(label); 906 label_out: 907 if (labelstr == NULL) 908 labelstr = strdup("-"); 909 labelstrlen = strlen(labelstr); 910 if (labelstrlen > maxlabelstr) 911 maxlabelstr = labelstrlen; 912 } else 913 labelstrlen = 0; 914 915 if ((np = malloc(sizeof(NAMES) + labelstrlen + 916 ulen + glen + flen + 4)) == NULL) 917 err(1, "malloc"); 918 919 np->user = &np->data[0]; 920 (void)strcpy(np->user, user); 921 np->group = &np->data[ulen + 1]; 922 (void)strcpy(np->group, group); 923 924 if (S_ISCHR(sp->st_mode) || 925 S_ISBLK(sp->st_mode)) { 926 sizelen = snprintf(NULL, 0, 927 "%#jx", (uintmax_t)sp->st_rdev); 928 if (d.s_size < sizelen) 929 d.s_size = sizelen; 930 } 931 932 if (f_flags) { 933 np->flags = &np->data[ulen + glen + 2]; 934 (void)strcpy(np->flags, flags); 935 free(flags); 936 } 937 if (f_label) { 938 np->label = &np->data[ulen + glen + 2 939 + (f_flags ? flen + 1 : 0)]; 940 (void)strcpy(np->label, labelstr); 941 free(labelstr); 942 } 943 cur->fts_pointer = np; 944 } 945 } 946 ++entries; 947 } 948 949 /* 950 * If there are no entries to display, we normally stop right 951 * here. However, we must continue if we have to display the 952 * total block count. In this case, we display the total only 953 * on the second (p != NULL) pass. 954 */ 955 if (!entries && (!(f_longform || f_size) || p == NULL)) 956 return; 957 958 d.list = list; 959 d.entries = entries; 960 d.maxlen = maxlen; 961 if (needstats) { 962 d.btotal = btotal; 963 d.s_block = snprintf(NULL, 0, "%lu", howmany(maxblock, blocksize)); 964 d.s_flags = maxflags; 965 d.s_label = maxlabelstr; 966 d.s_group = maxgroup; 967 d.s_inode = snprintf(NULL, 0, "%ju", maxinode); 968 d.s_nlink = snprintf(NULL, 0, "%lu", maxnlink); 969 sizelen = f_humanval ? HUMANVALSTR_LEN : 970 snprintf(NULL, 0, "%ju", maxsize); 971 if (d.s_size < sizelen) 972 d.s_size = sizelen; 973 d.s_user = maxuser; 974 } 975 if (f_thousands) /* make space for commas */ 976 d.s_size += (d.s_size - 1) / 3; 977 printfcn(&d); 978 output = 1; 979 980 if (f_longform) 981 for (cur = list; cur; cur = cur->fts_link) 982 free(cur->fts_pointer); 983 } 984 985 /* 986 * Ordering for mastercmp: 987 * If ordering the argv (fts_level = FTS_ROOTLEVEL) return non-directories 988 * as larger than directories. Within either group, use the sort function. 989 * All other levels use the sort function. Error entries remain unsorted. 990 */ 991 static int 992 mastercmp(const FTSENT * const *a, const FTSENT * const *b) 993 { 994 int a_info, b_info; 995 996 a_info = (*a)->fts_info; 997 if (a_info == FTS_ERR) 998 return (0); 999 b_info = (*b)->fts_info; 1000 if (b_info == FTS_ERR) 1001 return (0); 1002 1003 if (a_info == FTS_NS || b_info == FTS_NS) 1004 return (namecmp(*a, *b)); 1005 1006 if (a_info != b_info && 1007 (*a)->fts_level == FTS_ROOTLEVEL && !f_listdir) { 1008 if (a_info == FTS_D) 1009 return (1); 1010 if (b_info == FTS_D) 1011 return (-1); 1012 } 1013 return (sortfcn(*a, *b)); 1014 } 1015