ls.c revision 226546
1/*- 2 * Copyright (c) 1989, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Michael Fischbein. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 4. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33#ifndef lint 34static const char copyright[] = 35"@(#) Copyright (c) 1989, 1993, 1994\n\ 36 The Regents of the University of California. All rights reserved.\n"; 37#endif /* not lint */ 38 39#if 0 40#ifndef lint 41static char sccsid[] = "@(#)ls.c 8.5 (Berkeley) 4/2/94"; 42#endif /* not lint */ 43#endif 44#include <sys/cdefs.h> 45__FBSDID("$FreeBSD: head/bin/ls/ls.c 226546 2011-10-19 15:35:41Z des $"); 46 47#include <sys/param.h> 48#include <sys/stat.h> 49#include <sys/ioctl.h> 50#include <sys/mac.h> 51 52#include <dirent.h> 53#include <err.h> 54#include <errno.h> 55#include <fts.h> 56#include <grp.h> 57#include <inttypes.h> 58#include <limits.h> 59#include <locale.h> 60#include <pwd.h> 61#include <stdio.h> 62#include <stdlib.h> 63#include <string.h> 64#include <unistd.h> 65#ifdef COLORLS 66#include <termcap.h> 67#include <signal.h> 68#endif 69 70#include "ls.h" 71#include "extern.h" 72 73/* 74 * Upward approximation of the maximum number of characters needed to 75 * represent a value of integral type t as a string, excluding the 76 * NUL terminator, with provision for a sign. 77 */ 78#define STRBUF_SIZEOF(t) (1 + CHAR_BIT * sizeof(t) / 3 + 1) 79 80/* 81 * MAKENINES(n) turns n into (10**n)-1. This is useful for converting a width 82 * into a number that wide in decimal. 83 * XXX: Overflows are not considered. 84 */ 85#define MAKENINES(n) \ 86 do { \ 87 intmax_t i; \ 88 \ 89 /* Use a loop as all values of n are small. */ \ 90 for (i = 1; n > 0; i *= 10) \ 91 n--; \ 92 n = i - 1; \ 93 } while(0) 94 95static void display(const FTSENT *, FTSENT *, int); 96static int mastercmp(const FTSENT * const *, const FTSENT * const *); 97static void traverse(int, char **, int); 98 99static void (*printfcn)(const DISPLAY *); 100static int (*sortfcn)(const FTSENT *, const FTSENT *); 101 102long blocksize; /* block size units */ 103int termwidth = 80; /* default terminal width */ 104 105/* flags */ 106 int f_accesstime; /* use time of last access */ 107 int f_birthtime; /* use time of birth */ 108 int f_flags; /* show flags associated with a file */ 109 int f_humanval; /* show human-readable file sizes */ 110 int f_inode; /* print inode */ 111static int f_kblocks; /* print size in kilobytes */ 112static int f_listdir; /* list actual directory, not contents */ 113static int f_listdot; /* list files beginning with . */ 114static int f_noautodot; /* do not automatically enable -A for root */ 115 int f_longform; /* long listing format */ 116static int f_nofollow; /* don't follow symbolic link arguments */ 117 int f_nonprint; /* show unprintables as ? */ 118static int f_nosort; /* don't sort output */ 119 int f_notabs; /* don't use tab-separated multi-col output */ 120static 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 */ 123static int f_recursive; /* ls subdirectories also */ 124static int f_reversesort; /* reverse whatever sort is used */ 125 int f_sectime; /* print the real time for all files */ 126static int f_singlecol; /* use single column output */ 127 int f_size; /* list size in short listing */ 128 int f_slash; /* similar to f_type, but only for dirs */ 129 int f_sortacross; /* sort across rows, not down columns */ 130 int f_statustime; /* use time of last mode change */ 131static int f_stream; /* stream the output, separate with commas */ 132static int f_timesort; /* sort by time vice name */ 133 char *f_timeformat; /* user-specified time format */ 134static int f_sizesort; 135 int f_type; /* add type character for non-regular files */ 136static int f_whiteout; /* show whiteout entries */ 137 int f_label; /* show MAC label */ 138#ifdef COLORLS 139 int f_color; /* add type in color for non-regular files */ 140 141char *ansi_bgcol; /* ANSI sequence to set background colour */ 142char *ansi_fgcol; /* ANSI sequence to set foreground colour */ 143char *ansi_coloff; /* ANSI sequence to reset colours */ 144char *attrs_off; /* ANSI sequence to turn off attributes */ 145char *enter_bold; /* ANSI sequence to set color to bold mode */ 146#endif 147 148static int rval; 149 150int 151main(int argc, char *argv[]) 152{ 153 static char dot[] = ".", *dotav[] = {dot, NULL}; 154 struct winsize win; 155 int ch, fts_options, notused; 156 char *p; 157#ifdef COLORLS 158 char termcapbuf[1024]; /* termcap definition buffer */ 159 char tcapbuf[512]; /* capability buffer */ 160 char *bp = tcapbuf; 161#endif 162 163 (void)setlocale(LC_ALL, ""); 164 165 /* Terminal defaults to -Cq, non-terminal defaults to -1. */ 166 if (isatty(STDOUT_FILENO)) { 167 termwidth = 80; 168 if ((p = getenv("COLUMNS")) != NULL && *p != '\0') 169 termwidth = atoi(p); 170 else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) != -1 && 171 win.ws_col > 0) 172 termwidth = win.ws_col; 173 f_nonprint = 1; 174 } else { 175 f_singlecol = 1; 176 /* retrieve environment variable, in case of explicit -C */ 177 p = getenv("COLUMNS"); 178 if (p) 179 termwidth = atoi(p); 180 } 181 182 fts_options = FTS_PHYSICAL; 183 while ((ch = getopt(argc, argv, 184 "1ABCD:FGHILPRSTUWZabcdfghiklmnopqrstuwx")) != -1) { 185 switch (ch) { 186 /* 187 * The -1, -C, -x and -l options all override each other so 188 * shell aliasing works right. 189 */ 190 case '1': 191 f_singlecol = 1; 192 f_longform = 0; 193 f_stream = 0; 194 break; 195 case 'B': 196 f_nonprint = 0; 197 f_octal = 1; 198 f_octal_escape = 0; 199 break; 200 case 'C': 201 f_sortacross = f_longform = f_singlecol = 0; 202 break; 203 case 'D': 204 f_timeformat = optarg; 205 break; 206 case 'l': 207 f_longform = 1; 208 f_singlecol = 0; 209 f_stream = 0; 210 break; 211 case 'x': 212 f_sortacross = 1; 213 f_longform = 0; 214 f_singlecol = 0; 215 break; 216 /* The -c, -u, and -U options override each other. */ 217 case 'c': 218 f_statustime = 1; 219 f_accesstime = 0; 220 f_birthtime = 0; 221 break; 222 case 'u': 223 f_accesstime = 1; 224 f_statustime = 0; 225 f_birthtime = 0; 226 break; 227 case 'U': 228 f_birthtime = 1; 229 f_accesstime = 0; 230 f_statustime = 0; 231 break; 232 case 'F': 233 f_type = 1; 234 f_slash = 0; 235 break; 236 case 'H': 237 fts_options |= FTS_COMFOLLOW; 238 f_nofollow = 0; 239 break; 240 case 'G': 241 setenv("CLICOLOR", "", 1); 242 break; 243 case 'L': 244 fts_options &= ~FTS_PHYSICAL; 245 fts_options |= FTS_LOGICAL; 246 f_nofollow = 0; 247 break; 248 case 'P': 249 fts_options &= ~FTS_COMFOLLOW; 250 fts_options &= ~FTS_LOGICAL; 251 fts_options |= FTS_PHYSICAL; 252 f_nofollow = 1; 253 break; 254 case 'R': 255 f_recursive = 1; 256 break; 257 case 'a': 258 fts_options |= FTS_SEEDOT; 259 /* FALLTHROUGH */ 260 case 'A': 261 f_listdot = 1; 262 break; 263 case 'I': 264 f_noautodot = 1; 265 break; 266 /* The -d option turns off the -R option. */ 267 case 'd': 268 f_listdir = 1; 269 f_recursive = 0; 270 break; 271 case 'f': 272 f_nosort = 1; 273 break; 274 case 'g': /* Compatibility with 4.3BSD. */ 275 break; 276 case 'h': 277 f_humanval = 1; 278 break; 279 case 'i': 280 f_inode = 1; 281 break; 282 case 'k': 283 f_humanval = 0; 284 f_kblocks = 1; 285 break; 286 case 'm': 287 f_stream = 1; 288 f_singlecol = 0; 289 f_longform = 0; 290 break; 291 case 'n': 292 f_numericonly = 1; 293 break; 294 case 'o': 295 f_flags = 1; 296 break; 297 case 'p': 298 f_slash = 1; 299 f_type = 1; 300 break; 301 case 'q': 302 f_nonprint = 1; 303 f_octal = 0; 304 f_octal_escape = 0; 305 break; 306 case 'r': 307 f_reversesort = 1; 308 break; 309 case 's': 310 f_size = 1; 311 break; 312 case 'T': 313 f_sectime = 1; 314 break; 315 /* The -t and -S options override each other. */ 316 case 't': 317 f_timesort = 1; 318 f_sizesort = 0; 319 break; 320 case 'S': 321 f_sizesort = 1; 322 f_timesort = 0; 323 break; 324 case 'W': 325 f_whiteout = 1; 326 break; 327 case 'b': 328 f_nonprint = 0; 329 f_octal = 0; 330 f_octal_escape = 1; 331 break; 332 case 'w': 333 f_nonprint = 0; 334 f_octal = 0; 335 f_octal_escape = 0; 336 break; 337 case 'Z': 338 f_label = 1; 339 break; 340 default: 341 case '?': 342 usage(); 343 } 344 } 345 argc -= optind; 346 argv += optind; 347 348 /* Root is -A automatically unless -I. */ 349 if (!f_listdot && getuid() == (uid_t)0 && !f_noautodot) 350 f_listdot = 1; 351 352 /* Enabling of colours is conditional on the environment. */ 353 if (getenv("CLICOLOR") && 354 (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE"))) 355#ifdef COLORLS 356 if (tgetent(termcapbuf, getenv("TERM")) == 1) { 357 ansi_fgcol = tgetstr("AF", &bp); 358 ansi_bgcol = tgetstr("AB", &bp); 359 attrs_off = tgetstr("me", &bp); 360 enter_bold = tgetstr("md", &bp); 361 362 /* To switch colours off use 'op' if 363 * available, otherwise use 'oc', or 364 * don't do colours at all. */ 365 ansi_coloff = tgetstr("op", &bp); 366 if (!ansi_coloff) 367 ansi_coloff = tgetstr("oc", &bp); 368 if (ansi_fgcol && ansi_bgcol && ansi_coloff) 369 f_color = 1; 370 } 371#else 372 warnx("color support not compiled in"); 373#endif /*COLORLS*/ 374 375#ifdef COLORLS 376 if (f_color) { 377 /* 378 * We can't put tabs and color sequences together: 379 * column number will be incremented incorrectly 380 * for "stty oxtabs" mode. 381 */ 382 f_notabs = 1; 383 (void)signal(SIGINT, colorquit); 384 (void)signal(SIGQUIT, colorquit); 385 parsecolors(getenv("LSCOLORS")); 386 } 387#endif 388 389 /* 390 * If not -F, -i, -l, -s, -S or -t options, don't require stat 391 * information, unless in color mode in which case we do 392 * need this to determine which colors to display. 393 */ 394 if (!f_inode && !f_longform && !f_size && !f_timesort && 395 !f_sizesort && !f_type 396#ifdef COLORLS 397 && !f_color 398#endif 399 ) 400 fts_options |= FTS_NOSTAT; 401 402 /* 403 * If not -F, -P, -d or -l options, follow any symbolic links listed on 404 * the command line. 405 */ 406 if (!f_nofollow && !f_longform && !f_listdir && (!f_type || f_slash)) 407 fts_options |= FTS_COMFOLLOW; 408 409 /* 410 * If -W, show whiteout entries 411 */ 412#ifdef FTS_WHITEOUT 413 if (f_whiteout) 414 fts_options |= FTS_WHITEOUT; 415#endif 416 417 /* If -i, -l or -s, figure out block size. */ 418 if (f_inode || f_longform || f_size) { 419 if (f_kblocks) 420 blocksize = 2; 421 else { 422 (void)getbsize(¬used, &blocksize); 423 blocksize /= 512; 424 } 425 } 426 /* Select a sort function. */ 427 if (f_reversesort) { 428 if (!f_timesort && !f_sizesort) 429 sortfcn = revnamecmp; 430 else if (f_sizesort) 431 sortfcn = revsizecmp; 432 else if (f_accesstime) 433 sortfcn = revacccmp; 434 else if (f_birthtime) 435 sortfcn = revbirthcmp; 436 else if (f_statustime) 437 sortfcn = revstatcmp; 438 else /* Use modification time. */ 439 sortfcn = revmodcmp; 440 } else { 441 if (!f_timesort && !f_sizesort) 442 sortfcn = namecmp; 443 else if (f_sizesort) 444 sortfcn = sizecmp; 445 else if (f_accesstime) 446 sortfcn = acccmp; 447 else if (f_birthtime) 448 sortfcn = birthcmp; 449 else if (f_statustime) 450 sortfcn = statcmp; 451 else /* Use modification time. */ 452 sortfcn = modcmp; 453 } 454 455 /* Select a print function. */ 456 if (f_singlecol) 457 printfcn = printscol; 458 else if (f_longform) 459 printfcn = printlong; 460 else if (f_stream) 461 printfcn = printstream; 462 else 463 printfcn = printcol; 464 465 if (argc) 466 traverse(argc, argv, fts_options); 467 else 468 traverse(1, dotav, fts_options); 469 exit(rval); 470} 471 472static int output; /* If anything output. */ 473 474/* 475 * Traverse() walks the logical directory structure specified by the argv list 476 * in the order specified by the mastercmp() comparison function. During the 477 * traversal it passes linked lists of structures to display() which represent 478 * a superset (may be exact set) of the files to be displayed. 479 */ 480static void 481traverse(int argc, char *argv[], int options) 482{ 483 FTS *ftsp; 484 FTSENT *p, *chp; 485 int ch_options; 486 487 if ((ftsp = 488 fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL) 489 err(1, "fts_open"); 490 491 /* 492 * We ignore errors from fts_children here since they will be 493 * replicated and signalled on the next call to fts_read() below. 494 */ 495 chp = fts_children(ftsp, 0); 496 if (chp != NULL) 497 display(NULL, chp, options); 498 if (f_listdir) 499 return; 500 501 /* 502 * If not recursing down this tree and don't need stat info, just get 503 * the names. 504 */ 505 ch_options = !f_recursive && !f_label && 506 options & FTS_NOSTAT ? FTS_NAMEONLY : 0; 507 508 while ((p = fts_read(ftsp)) != NULL) 509 switch (p->fts_info) { 510 case FTS_DC: 511 warnx("%s: directory causes a cycle", p->fts_name); 512 break; 513 case FTS_DNR: 514 case FTS_ERR: 515 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 516 rval = 1; 517 break; 518 case FTS_D: 519 if (p->fts_level != FTS_ROOTLEVEL && 520 p->fts_name[0] == '.' && !f_listdot) 521 break; 522 523 /* 524 * If already output something, put out a newline as 525 * a separator. If multiple arguments, precede each 526 * directory with its name. 527 */ 528 if (output) { 529 putchar('\n'); 530 (void)printname(p->fts_path); 531 puts(":"); 532 } else if (argc > 1) { 533 (void)printname(p->fts_path); 534 puts(":"); 535 output = 1; 536 } 537 chp = fts_children(ftsp, ch_options); 538 display(p, chp, options); 539 540 if (!f_recursive && chp != NULL) 541 (void)fts_set(ftsp, p, FTS_SKIP); 542 break; 543 default: 544 break; 545 } 546 if (errno) 547 err(1, "fts_read"); 548} 549 550/* 551 * Display() takes a linked list of FTSENT structures and passes the list 552 * along with any other necessary information to the print function. P 553 * points to the parent directory of the display list. 554 */ 555static void 556display(const FTSENT *p, FTSENT *list, int options) 557{ 558 struct stat *sp; 559 DISPLAY d; 560 FTSENT *cur; 561 NAMES *np; 562 off_t maxsize; 563 long maxblock; 564 u_long btotal, labelstrlen, maxinode, maxlen, maxnlink; 565 u_long maxlabelstr; 566 u_int sizelen; 567 int maxflags; 568 gid_t maxgroup; 569 uid_t maxuser; 570 size_t flen, ulen, glen; 571 char *initmax; 572 int entries, needstats; 573 const char *user, *group; 574 char *flags, *labelstr = NULL; 575 char ngroup[STRBUF_SIZEOF(uid_t) + 1]; 576 char nuser[STRBUF_SIZEOF(gid_t) + 1]; 577 578 needstats = f_inode || f_longform || f_size; 579 flen = 0; 580 btotal = 0; 581 initmax = getenv("LS_COLWIDTHS"); 582 /* Fields match -lios order. New ones should be added at the end. */ 583 maxlabelstr = maxblock = maxinode = maxlen = maxnlink = 584 maxuser = maxgroup = maxflags = maxsize = 0; 585 if (initmax != NULL && *initmax != '\0') { 586 char *initmax2, *jinitmax; 587 int ninitmax; 588 589 /* Fill-in "::" as "0:0:0" for the sake of scanf. */ 590 jinitmax = malloc(strlen(initmax) * 2 + 2); 591 if (jinitmax == NULL) 592 err(1, "malloc"); 593 initmax2 = jinitmax; 594 if (*initmax == ':') 595 strcpy(initmax2, "0:"), initmax2 += 2; 596 else 597 *initmax2++ = *initmax, *initmax2 = '\0'; 598 for (initmax++; *initmax != '\0'; initmax++) { 599 if (initmax[-1] == ':' && initmax[0] == ':') { 600 *initmax2++ = '0'; 601 *initmax2++ = initmax[0]; 602 initmax2[1] = '\0'; 603 } else { 604 *initmax2++ = initmax[0]; 605 initmax2[1] = '\0'; 606 } 607 } 608 if (initmax2[-1] == ':') 609 strcpy(initmax2, "0"); 610 611 ninitmax = sscanf(jinitmax, 612 " %lu : %ld : %lu : %u : %u : %i : %jd : %lu : %lu ", 613 &maxinode, &maxblock, &maxnlink, &maxuser, 614 &maxgroup, &maxflags, &maxsize, &maxlen, &maxlabelstr); 615 f_notabs = 1; 616 switch (ninitmax) { 617 case 0: 618 maxinode = 0; 619 /* FALLTHROUGH */ 620 case 1: 621 maxblock = 0; 622 /* FALLTHROUGH */ 623 case 2: 624 maxnlink = 0; 625 /* FALLTHROUGH */ 626 case 3: 627 maxuser = 0; 628 /* FALLTHROUGH */ 629 case 4: 630 maxgroup = 0; 631 /* FALLTHROUGH */ 632 case 5: 633 maxflags = 0; 634 /* FALLTHROUGH */ 635 case 6: 636 maxsize = 0; 637 /* FALLTHROUGH */ 638 case 7: 639 maxlen = 0; 640 /* FALLTHROUGH */ 641 case 8: 642 maxlabelstr = 0; 643 /* FALLTHROUGH */ 644#ifdef COLORLS 645 if (!f_color) 646#endif 647 f_notabs = 0; 648 /* FALLTHROUGH */ 649 default: 650 break; 651 } 652 MAKENINES(maxinode); 653 MAKENINES(maxblock); 654 MAKENINES(maxnlink); 655 MAKENINES(maxsize); 656 free(jinitmax); 657 } 658 d.s_size = 0; 659 sizelen = 0; 660 flags = NULL; 661 for (cur = list, entries = 0; cur; cur = cur->fts_link) { 662 if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) { 663 warnx("%s: %s", 664 cur->fts_name, strerror(cur->fts_errno)); 665 cur->fts_number = NO_PRINT; 666 rval = 1; 667 continue; 668 } 669 /* 670 * P is NULL if list is the argv list, to which different rules 671 * apply. 672 */ 673 if (p == NULL) { 674 /* Directories will be displayed later. */ 675 if (cur->fts_info == FTS_D && !f_listdir) { 676 cur->fts_number = NO_PRINT; 677 continue; 678 } 679 } else { 680 /* Only display dot file if -a/-A set. */ 681 if (cur->fts_name[0] == '.' && !f_listdot) { 682 cur->fts_number = NO_PRINT; 683 continue; 684 } 685 } 686 if (cur->fts_namelen > maxlen) 687 maxlen = cur->fts_namelen; 688 if (f_octal || f_octal_escape) { 689 u_long t = len_octal(cur->fts_name, cur->fts_namelen); 690 691 if (t > maxlen) 692 maxlen = t; 693 } 694 if (needstats) { 695 sp = cur->fts_statp; 696 if (sp->st_blocks > maxblock) 697 maxblock = sp->st_blocks; 698 if (sp->st_ino > maxinode) 699 maxinode = sp->st_ino; 700 if (sp->st_nlink > maxnlink) 701 maxnlink = sp->st_nlink; 702 if (sp->st_size > maxsize) 703 maxsize = sp->st_size; 704 705 btotal += sp->st_blocks; 706 if (f_longform) { 707 if (f_numericonly) { 708 (void)snprintf(nuser, sizeof(nuser), 709 "%u", sp->st_uid); 710 (void)snprintf(ngroup, sizeof(ngroup), 711 "%u", sp->st_gid); 712 user = nuser; 713 group = ngroup; 714 } else { 715 user = user_from_uid(sp->st_uid, 0); 716 group = group_from_gid(sp->st_gid, 0); 717 } 718 if ((ulen = strlen(user)) > maxuser) 719 maxuser = ulen; 720 if ((glen = strlen(group)) > maxgroup) 721 maxgroup = glen; 722 if (f_flags) { 723 flags = fflagstostr(sp->st_flags); 724 if (flags != NULL && *flags == '\0') { 725 free(flags); 726 flags = strdup("-"); 727 } 728 if (flags == NULL) 729 err(1, "fflagstostr"); 730 flen = strlen(flags); 731 if (flen > (size_t)maxflags) 732 maxflags = flen; 733 } else 734 flen = 0; 735 labelstr = NULL; 736 if (f_label) { 737 char name[PATH_MAX + 1]; 738 mac_t label; 739 int error; 740 741 error = mac_prepare_file_label(&label); 742 if (error == -1) { 743 warn("MAC label for %s/%s", 744 cur->fts_parent->fts_path, 745 cur->fts_name); 746 goto label_out; 747 } 748 749 if (cur->fts_level == FTS_ROOTLEVEL) 750 snprintf(name, sizeof(name), 751 "%s", cur->fts_name); 752 else 753 snprintf(name, sizeof(name), 754 "%s/%s", cur->fts_parent-> 755 fts_accpath, cur->fts_name); 756 757 if (options & FTS_LOGICAL) 758 error = mac_get_file(name, 759 label); 760 else 761 error = mac_get_link(name, 762 label); 763 if (error == -1) { 764 warn("MAC label for %s/%s", 765 cur->fts_parent->fts_path, 766 cur->fts_name); 767 mac_free(label); 768 goto label_out; 769 } 770 771 error = mac_to_text(label, 772 &labelstr); 773 if (error == -1) { 774 warn("MAC label for %s/%s", 775 cur->fts_parent->fts_path, 776 cur->fts_name); 777 mac_free(label); 778 goto label_out; 779 } 780 mac_free(label); 781label_out: 782 if (labelstr == NULL) 783 labelstr = strdup("-"); 784 labelstrlen = strlen(labelstr); 785 if (labelstrlen > maxlabelstr) 786 maxlabelstr = labelstrlen; 787 } else 788 labelstrlen = 0; 789 790 if ((np = malloc(sizeof(NAMES) + labelstrlen + 791 ulen + glen + flen + 4)) == NULL) 792 err(1, "malloc"); 793 794 np->user = &np->data[0]; 795 (void)strcpy(np->user, user); 796 np->group = &np->data[ulen + 1]; 797 (void)strcpy(np->group, group); 798 799 if (S_ISCHR(sp->st_mode) || 800 S_ISBLK(sp->st_mode)) { 801 sizelen = snprintf(NULL, 0, 802 "%#jx", (uintmax_t)sp->st_rdev); 803 if (d.s_size < sizelen) 804 d.s_size = sizelen; 805 } 806 807 if (f_flags) { 808 np->flags = &np->data[ulen + glen + 2]; 809 (void)strcpy(np->flags, flags); 810 free(flags); 811 } 812 if (f_label) { 813 np->label = &np->data[ulen + glen + 2 814 + (f_flags ? flen + 1 : 0)]; 815 (void)strcpy(np->label, labelstr); 816 free(labelstr); 817 } 818 cur->fts_pointer = np; 819 } 820 } 821 ++entries; 822 } 823 824 /* 825 * If there are no entries to display, we normally stop right 826 * here. However, we must continue if we have to display the 827 * total block count. In this case, we display the total only 828 * on the second (p != NULL) pass. 829 */ 830 if (!entries && (!(f_longform || f_size) || p == NULL)) 831 return; 832 833 d.list = list; 834 d.entries = entries; 835 d.maxlen = maxlen; 836 if (needstats) { 837 d.btotal = btotal; 838 d.s_block = snprintf(NULL, 0, "%lu", howmany(maxblock, blocksize)); 839 d.s_flags = maxflags; 840 d.s_label = maxlabelstr; 841 d.s_group = maxgroup; 842 d.s_inode = snprintf(NULL, 0, "%lu", maxinode); 843 d.s_nlink = snprintf(NULL, 0, "%lu", maxnlink); 844 sizelen = f_humanval ? HUMANVALSTR_LEN : 845 snprintf(NULL, 0, "%ju", maxsize); 846 if (d.s_size < sizelen) 847 d.s_size = sizelen; 848 d.s_user = maxuser; 849 } 850 printfcn(&d); 851 output = 1; 852 853 if (f_longform) 854 for (cur = list; cur; cur = cur->fts_link) 855 free(cur->fts_pointer); 856} 857 858/* 859 * Ordering for mastercmp: 860 * If ordering the argv (fts_level = FTS_ROOTLEVEL) return non-directories 861 * as larger than directories. Within either group, use the sort function. 862 * All other levels use the sort function. Error entries remain unsorted. 863 */ 864static int 865mastercmp(const FTSENT * const *a, const FTSENT * const *b) 866{ 867 int a_info, b_info; 868 869 a_info = (*a)->fts_info; 870 if (a_info == FTS_ERR) 871 return (0); 872 b_info = (*b)->fts_info; 873 if (b_info == FTS_ERR) 874 return (0); 875 876 if (a_info == FTS_NS || b_info == FTS_NS) 877 return (namecmp(*a, *b)); 878 879 if (a_info != b_info && 880 (*a)->fts_level == FTS_ROOTLEVEL && !f_listdir) { 881 if (a_info == FTS_D) 882 return (1); 883 if (b_info == FTS_D) 884 return (-1); 885 } 886 return (sortfcn(*a, *b)); 887} 888