ls.c revision 152469
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 152469 2005-11-16 07:13:37Z ru $"); 46 47#include <sys/types.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_flags; /* show flags associated with a file */ 108 int f_humanval; /* show human-readable file sizes */ 109 int f_inode; /* print inode */ 110static int f_kblocks; /* print size in kilobytes */ 111static int f_listdir; /* list actual directory, not contents */ 112static int f_listdot; /* list files beginning with . */ 113static int f_noautodot; /* do not automatically enable -A for root */ 114 int f_longform; /* long listing format */ 115 int f_nonprint; /* show unprintables as ? */ 116static int f_nosort; /* don't sort output */ 117 int f_notabs; /* don't use tab-separated multi-col output */ 118static int f_numericonly; /* don't convert uid/gid to name */ 119 int f_octal; /* show unprintables as \xxx */ 120 int f_octal_escape; /* like f_octal but use C escapes if possible */ 121static int f_recursive; /* ls subdirectories also */ 122static int f_reversesort; /* reverse whatever sort is used */ 123 int f_sectime; /* print the real time for all files */ 124static int f_singlecol; /* use single column output */ 125 int f_size; /* list size in short listing */ 126 int f_slash; /* similar to f_type, but only for dirs */ 127 int f_sortacross; /* sort across rows, not down columns */ 128 int f_statustime; /* use time of last mode change */ 129static int f_stream; /* stream the output, separate with commas */ 130static int f_timesort; /* sort by time vice name */ 131static int f_sizesort; 132 int f_type; /* add type character for non-regular files */ 133static int f_whiteout; /* show whiteout entries */ 134 int f_label; /* show MAC label */ 135#ifdef COLORLS 136 int f_color; /* add type in color for non-regular files */ 137 138char *ansi_bgcol; /* ANSI sequence to set background colour */ 139char *ansi_fgcol; /* ANSI sequence to set foreground colour */ 140char *ansi_coloff; /* ANSI sequence to reset colours */ 141char *attrs_off; /* ANSI sequence to turn off attributes */ 142char *enter_bold; /* ANSI sequence to set color to bold mode */ 143#endif 144 145static int rval; 146 147int 148main(int argc, char *argv[]) 149{ 150 static char dot[] = ".", *dotav[] = {dot, NULL}; 151 struct winsize win; 152 int ch, fts_options, notused; 153 char *p; 154#ifdef COLORLS 155 char termcapbuf[1024]; /* termcap definition buffer */ 156 char tcapbuf[512]; /* capability buffer */ 157 char *bp = tcapbuf; 158#endif 159 160 (void)setlocale(LC_ALL, ""); 161 162 /* Terminal defaults to -Cq, non-terminal defaults to -1. */ 163 if (isatty(STDOUT_FILENO)) { 164 termwidth = 80; 165 if ((p = getenv("COLUMNS")) != NULL && *p != '\0') 166 termwidth = atoi(p); 167 else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) != -1 && 168 win.ws_col > 0) 169 termwidth = win.ws_col; 170 f_nonprint = 1; 171 } else { 172 f_singlecol = 1; 173 /* retrieve environment variable, in case of explicit -C */ 174 p = getenv("COLUMNS"); 175 if (p) 176 termwidth = atoi(p); 177 } 178 179 fts_options = FTS_PHYSICAL; 180 while ((ch = getopt(argc, argv, 181 "1ABCFGHILPRSTWZabcdfghiklmnopqrstuwx")) != -1) { 182 switch (ch) { 183 /* 184 * The -1, -C, -x and -l options all override each other so 185 * shell aliasing works right. 186 */ 187 case '1': 188 f_singlecol = 1; 189 f_longform = 0; 190 f_stream = 0; 191 break; 192 case 'B': 193 f_nonprint = 0; 194 f_octal = 1; 195 f_octal_escape = 0; 196 break; 197 case 'C': 198 f_sortacross = f_longform = f_singlecol = 0; 199 break; 200 case 'l': 201 f_longform = 1; 202 f_singlecol = 0; 203 f_stream = 0; 204 break; 205 case 'x': 206 f_sortacross = 1; 207 f_longform = 0; 208 f_singlecol = 0; 209 break; 210 /* The -c and -u options override each other. */ 211 case 'c': 212 f_statustime = 1; 213 f_accesstime = 0; 214 break; 215 case 'u': 216 f_accesstime = 1; 217 f_statustime = 0; 218 break; 219 case 'F': 220 f_type = 1; 221 f_slash = 0; 222 break; 223 case 'H': 224 fts_options |= FTS_COMFOLLOW; 225 break; 226 case 'G': 227 setenv("CLICOLOR", "", 1); 228 break; 229 case 'L': 230 fts_options &= ~FTS_PHYSICAL; 231 fts_options |= FTS_LOGICAL; 232 break; 233 case 'P': 234 fts_options &= ~FTS_COMFOLLOW; 235 fts_options &= ~FTS_LOGICAL; 236 fts_options |= FTS_PHYSICAL; 237 break; 238 case 'R': 239 f_recursive = 1; 240 break; 241 case 'a': 242 fts_options |= FTS_SEEDOT; 243 /* FALLTHROUGH */ 244 case 'A': 245 f_listdot = 1; 246 break; 247 case 'I': 248 f_noautodot = 1; 249 break; 250 /* The -d option turns off the -R option. */ 251 case 'd': 252 f_listdir = 1; 253 f_recursive = 0; 254 break; 255 case 'f': 256 f_nosort = 1; 257 break; 258 case 'g': /* Compatibility with 4.3BSD. */ 259 break; 260 case 'h': 261 f_humanval = 1; 262 break; 263 case 'i': 264 f_inode = 1; 265 break; 266 case 'k': 267 f_humanval = 0; 268 f_kblocks = 1; 269 break; 270 case 'm': 271 f_stream = 1; 272 f_singlecol = 0; 273 f_longform = 0; 274 break; 275 case 'n': 276 f_numericonly = 1; 277 break; 278 case 'o': 279 f_flags = 1; 280 break; 281 case 'p': 282 f_slash = 1; 283 f_type = 1; 284 break; 285 case 'q': 286 f_nonprint = 1; 287 f_octal = 0; 288 f_octal_escape = 0; 289 break; 290 case 'r': 291 f_reversesort = 1; 292 break; 293 case 's': 294 f_size = 1; 295 break; 296 case 'T': 297 f_sectime = 1; 298 break; 299 case 't': 300 f_timesort = 1; 301 break; 302 case 'S': 303 f_sizesort = 1; 304 break; 305 case 'W': 306 f_whiteout = 1; 307 break; 308 case 'b': 309 f_nonprint = 0; 310 f_octal = 0; 311 f_octal_escape = 1; 312 break; 313 case 'w': 314 f_nonprint = 0; 315 f_octal = 0; 316 f_octal_escape = 0; 317 break; 318 case 'Z': 319 f_label = 1; 320 break; 321 default: 322 case '?': 323 usage(); 324 } 325 } 326 argc -= optind; 327 argv += optind; 328 329 /* Root is -A automatically unless -I. */ 330 if (!f_listdot && getuid() == (uid_t)0 && !f_noautodot) 331 f_listdot = 1; 332 333 /* Enabling of colours is conditional on the environment. */ 334 if (getenv("CLICOLOR") && 335 (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE"))) 336#ifdef COLORLS 337 if (tgetent(termcapbuf, getenv("TERM")) == 1) { 338 ansi_fgcol = tgetstr("AF", &bp); 339 ansi_bgcol = tgetstr("AB", &bp); 340 attrs_off = tgetstr("me", &bp); 341 enter_bold = tgetstr("md", &bp); 342 343 /* To switch colours off use 'op' if 344 * available, otherwise use 'oc', or 345 * don't do colours at all. */ 346 ansi_coloff = tgetstr("op", &bp); 347 if (!ansi_coloff) 348 ansi_coloff = tgetstr("oc", &bp); 349 if (ansi_fgcol && ansi_bgcol && ansi_coloff) 350 f_color = 1; 351 } 352#else 353 warnx("color support not compiled in"); 354#endif /*COLORLS*/ 355 356#ifdef COLORLS 357 if (f_color) { 358 /* 359 * We can't put tabs and color sequences together: 360 * column number will be incremented incorrectly 361 * for "stty oxtabs" mode. 362 */ 363 f_notabs = 1; 364 (void)signal(SIGINT, colorquit); 365 (void)signal(SIGQUIT, colorquit); 366 parsecolors(getenv("LSCOLORS")); 367 } 368#endif 369 370 /* 371 * If not -F, -i, -l, -s, -S or -t options, don't require stat 372 * information, unless in color mode in which case we do 373 * need this to determine which colors to display. 374 */ 375 if (!f_inode && !f_longform && !f_size && !f_timesort && 376 !f_sizesort && !f_type 377#ifdef COLORLS 378 && !f_color 379#endif 380 ) 381 fts_options |= FTS_NOSTAT; 382 383 /* 384 * If not -F, -d or -l options, follow any symbolic links listed on 385 * the command line. 386 */ 387 if (!f_longform && !f_listdir && !f_type) 388 fts_options |= FTS_COMFOLLOW; 389 390 /* 391 * If -W, show whiteout entries 392 */ 393#ifdef FTS_WHITEOUT 394 if (f_whiteout) 395 fts_options |= FTS_WHITEOUT; 396#endif 397 398 /* If -l or -s, figure out block size. */ 399 if (f_longform || f_size) { 400 if (f_kblocks) 401 blocksize = 2; 402 else { 403 (void)getbsize(¬used, &blocksize); 404 blocksize /= 512; 405 } 406 } 407 /* Select a sort function. */ 408 if (f_reversesort) { 409 if (!f_timesort && !f_sizesort) 410 sortfcn = revnamecmp; 411 else if (f_accesstime) 412 sortfcn = revacccmp; 413 else if (f_statustime) 414 sortfcn = revstatcmp; 415 else if (f_sizesort) 416 sortfcn = revsizecmp; 417 else /* Use modification time. */ 418 sortfcn = revmodcmp; 419 } else { 420 if (!f_timesort && !f_sizesort) 421 sortfcn = namecmp; 422 else if (f_accesstime) 423 sortfcn = acccmp; 424 else if (f_statustime) 425 sortfcn = statcmp; 426 else if (f_sizesort) 427 sortfcn = sizecmp; 428 else /* Use modification time. */ 429 sortfcn = modcmp; 430 } 431 432 /* Select a print function. */ 433 if (f_singlecol) 434 printfcn = printscol; 435 else if (f_longform) 436 printfcn = printlong; 437 else if (f_stream) 438 printfcn = printstream; 439 else 440 printfcn = printcol; 441 442 if (argc) 443 traverse(argc, argv, fts_options); 444 else 445 traverse(1, dotav, fts_options); 446 exit(rval); 447} 448 449static int output; /* If anything output. */ 450 451/* 452 * Traverse() walks the logical directory structure specified by the argv list 453 * in the order specified by the mastercmp() comparison function. During the 454 * traversal it passes linked lists of structures to display() which represent 455 * a superset (may be exact set) of the files to be displayed. 456 */ 457static void 458traverse(int argc, char *argv[], int options) 459{ 460 FTS *ftsp; 461 FTSENT *p, *chp; 462 int ch_options; 463 464 if ((ftsp = 465 fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL) 466 err(1, "fts_open"); 467 468 /* 469 * We ignore errors from fts_children here since they will be 470 * replicated and signalled on the next call to fts_read() below. 471 */ 472 chp = fts_children(ftsp, 0); 473 if (chp != NULL) 474 display(NULL, chp, options); 475 if (f_listdir) 476 return; 477 478 /* 479 * If not recursing down this tree and don't need stat info, just get 480 * the names. 481 */ 482 ch_options = !f_recursive && !f_label && 483 options & FTS_NOSTAT ? FTS_NAMEONLY : 0; 484 485 while ((p = fts_read(ftsp)) != NULL) 486 switch (p->fts_info) { 487 case FTS_DC: 488 warnx("%s: directory causes a cycle", p->fts_name); 489 break; 490 case FTS_DNR: 491 case FTS_ERR: 492 warnx("%s: %s", p->fts_name, strerror(p->fts_errno)); 493 rval = 1; 494 break; 495 case FTS_D: 496 if (p->fts_level != FTS_ROOTLEVEL && 497 p->fts_name[0] == '.' && !f_listdot) 498 break; 499 500 /* 501 * If already output something, put out a newline as 502 * a separator. If multiple arguments, precede each 503 * directory with its name. 504 */ 505 if (output) { 506 putchar('\n'); 507 (void)printname(p->fts_path); 508 puts(":"); 509 } else if (argc > 1) { 510 (void)printname(p->fts_path); 511 puts(":"); 512 output = 1; 513 } 514 chp = fts_children(ftsp, ch_options); 515 display(p, chp, options); 516 517 if (!f_recursive && chp != NULL) 518 (void)fts_set(ftsp, p, FTS_SKIP); 519 break; 520 default: 521 break; 522 } 523 if (errno) 524 err(1, "fts_read"); 525} 526 527/* 528 * Display() takes a linked list of FTSENT structures and passes the list 529 * along with any other necessary information to the print function. P 530 * points to the parent directory of the display list. 531 */ 532static void 533display(const FTSENT *p, FTSENT *list, int options) 534{ 535 struct stat *sp; 536 DISPLAY d; 537 FTSENT *cur; 538 NAMES *np; 539 off_t maxsize; 540 long maxblock; 541 u_long btotal, labelstrlen, maxinode, maxlen, maxnlink; 542 u_long maxlabelstr; 543 int bcfile, maxflags; 544 gid_t maxgroup; 545 uid_t maxuser; 546 size_t flen, ulen, glen; 547 char *initmax; 548 int entries, needstats; 549 const char *user, *group; 550 char *flags, *labelstr = NULL; 551 char buf[STRBUF_SIZEOF(u_quad_t) + 1]; 552 char ngroup[STRBUF_SIZEOF(uid_t) + 1]; 553 char nuser[STRBUF_SIZEOF(gid_t) + 1]; 554 555 needstats = f_inode || f_longform || f_size; 556 flen = 0; 557 btotal = 0; 558 initmax = getenv("LS_COLWIDTHS"); 559 /* Fields match -lios order. New ones should be added at the end. */ 560 maxlabelstr = maxblock = maxinode = maxlen = maxnlink = 561 maxuser = maxgroup = maxflags = maxsize = 0; 562 if (initmax != NULL && *initmax != '\0') { 563 char *initmax2, *jinitmax; 564 int ninitmax; 565 566 /* Fill-in "::" as "0:0:0" for the sake of scanf. */ 567 jinitmax = malloc(strlen(initmax) * 2 + 2); 568 if (jinitmax == NULL) 569 err(1, "malloc"); 570 initmax2 = jinitmax; 571 if (*initmax == ':') 572 strcpy(initmax2, "0:"), initmax2 += 2; 573 else 574 *initmax2++ = *initmax, *initmax2 = '\0'; 575 for (initmax++; *initmax != '\0'; initmax++) { 576 if (initmax[-1] == ':' && initmax[0] == ':') { 577 *initmax2++ = '0'; 578 *initmax2++ = initmax[0]; 579 initmax2[1] = '\0'; 580 } else { 581 *initmax2++ = initmax[0]; 582 initmax2[1] = '\0'; 583 } 584 } 585 if (initmax2[-1] == ':') 586 strcpy(initmax2, "0"); 587 588 ninitmax = sscanf(jinitmax, 589 " %lu : %ld : %lu : %u : %u : %i : %jd : %lu : %lu ", 590 &maxinode, &maxblock, &maxnlink, &maxuser, 591 &maxgroup, &maxflags, &maxsize, &maxlen, &maxlabelstr); 592 f_notabs = 1; 593 switch (ninitmax) { 594 case 0: 595 maxinode = 0; 596 /* FALLTHROUGH */ 597 case 1: 598 maxblock = 0; 599 /* FALLTHROUGH */ 600 case 2: 601 maxnlink = 0; 602 /* FALLTHROUGH */ 603 case 3: 604 maxuser = 0; 605 /* FALLTHROUGH */ 606 case 4: 607 maxgroup = 0; 608 /* FALLTHROUGH */ 609 case 5: 610 maxflags = 0; 611 /* FALLTHROUGH */ 612 case 6: 613 maxsize = 0; 614 /* FALLTHROUGH */ 615 case 7: 616 maxlen = 0; 617 /* FALLTHROUGH */ 618 case 8: 619 maxlabelstr = 0; 620 /* FALLTHROUGH */ 621#ifdef COLORLS 622 if (!f_color) 623#endif 624 f_notabs = 0; 625 /* FALLTHROUGH */ 626 default: 627 break; 628 } 629 MAKENINES(maxinode); 630 MAKENINES(maxblock); 631 MAKENINES(maxnlink); 632 MAKENINES(maxsize); 633 free(jinitmax); 634 } 635 bcfile = 0; 636 flags = NULL; 637 for (cur = list, entries = 0; cur; cur = cur->fts_link) { 638 if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) { 639 warnx("%s: %s", 640 cur->fts_name, strerror(cur->fts_errno)); 641 cur->fts_number = NO_PRINT; 642 rval = 1; 643 continue; 644 } 645 /* 646 * P is NULL if list is the argv list, to which different rules 647 * apply. 648 */ 649 if (p == NULL) { 650 /* Directories will be displayed later. */ 651 if (cur->fts_info == FTS_D && !f_listdir) { 652 cur->fts_number = NO_PRINT; 653 continue; 654 } 655 } else { 656 /* Only display dot file if -a/-A set. */ 657 if (cur->fts_name[0] == '.' && !f_listdot) { 658 cur->fts_number = NO_PRINT; 659 continue; 660 } 661 } 662 if (cur->fts_namelen > maxlen) 663 maxlen = cur->fts_namelen; 664 if (f_octal || f_octal_escape) { 665 u_long t = len_octal(cur->fts_name, cur->fts_namelen); 666 667 if (t > maxlen) 668 maxlen = t; 669 } 670 if (needstats) { 671 sp = cur->fts_statp; 672 if (sp->st_blocks > maxblock) 673 maxblock = sp->st_blocks; 674 if (sp->st_ino > maxinode) 675 maxinode = sp->st_ino; 676 if (sp->st_nlink > maxnlink) 677 maxnlink = sp->st_nlink; 678 if (sp->st_size > maxsize) 679 maxsize = sp->st_size; 680 681 btotal += sp->st_blocks; 682 if (f_longform) { 683 if (f_numericonly) { 684 (void)snprintf(nuser, sizeof(nuser), 685 "%u", sp->st_uid); 686 (void)snprintf(ngroup, sizeof(ngroup), 687 "%u", sp->st_gid); 688 user = nuser; 689 group = ngroup; 690 } else { 691 user = user_from_uid(sp->st_uid, 0); 692 group = group_from_gid(sp->st_gid, 0); 693 } 694 if ((ulen = strlen(user)) > maxuser) 695 maxuser = ulen; 696 if ((glen = strlen(group)) > maxgroup) 697 maxgroup = glen; 698 if (f_flags) { 699 flags = fflagstostr(sp->st_flags); 700 if (flags != NULL && *flags == '\0') { 701 free(flags); 702 flags = strdup("-"); 703 } 704 if (flags == NULL) 705 err(1, "fflagstostr"); 706 flen = strlen(flags); 707 if (flen > (size_t)maxflags) 708 maxflags = flen; 709 } else 710 flen = 0; 711 labelstr = NULL; 712 if (f_label) { 713 char name[PATH_MAX + 1]; 714 mac_t label; 715 int error; 716 717 error = mac_prepare_file_label(&label); 718 if (error == -1) { 719 warn("MAC label for %s/%s", 720 cur->fts_parent->fts_path, 721 cur->fts_name); 722 goto label_out; 723 } 724 725 if (cur->fts_level == FTS_ROOTLEVEL) 726 snprintf(name, sizeof(name), 727 "%s", cur->fts_name); 728 else 729 snprintf(name, sizeof(name), 730 "%s/%s", cur->fts_parent-> 731 fts_accpath, cur->fts_name); 732 733 if (options & FTS_LOGICAL) 734 error = mac_get_file(name, 735 label); 736 else 737 error = mac_get_link(name, 738 label); 739 if (error == -1) { 740 warn("MAC label for %s/%s", 741 cur->fts_parent->fts_path, 742 cur->fts_name); 743 mac_free(label); 744 goto label_out; 745 } 746 747 error = mac_to_text(label, 748 &labelstr); 749 if (error == -1) { 750 warn("MAC label for %s/%s", 751 cur->fts_parent->fts_path, 752 cur->fts_name); 753 mac_free(label); 754 goto label_out; 755 } 756 mac_free(label); 757label_out: 758 if (labelstr == NULL) 759 labelstr = strdup("-"); 760 labelstrlen = strlen(labelstr); 761 if (labelstrlen > maxlabelstr) 762 maxlabelstr = labelstrlen; 763 } else 764 labelstrlen = 0; 765 766 if ((np = malloc(sizeof(NAMES) + labelstrlen + 767 ulen + glen + flen + 4)) == NULL) 768 err(1, "malloc"); 769 770 np->user = &np->data[0]; 771 (void)strcpy(np->user, user); 772 np->group = &np->data[ulen + 1]; 773 (void)strcpy(np->group, group); 774 775 if (S_ISCHR(sp->st_mode) || 776 S_ISBLK(sp->st_mode)) 777 bcfile = 1; 778 779 if (f_flags) { 780 np->flags = &np->data[ulen + glen + 2]; 781 (void)strcpy(np->flags, flags); 782 free(flags); 783 } 784 if (f_label) { 785 np->label = &np->data[ulen + glen + 2 786 + (f_flags ? flen + 1 : 0)]; 787 (void)strcpy(np->label, labelstr); 788 free(labelstr); 789 } 790 cur->fts_pointer = np; 791 } 792 } 793 ++entries; 794 } 795 796 /* 797 * If there are no entries to display, we normally stop right 798 * here. However, we must continue if we have to display the 799 * total block count. In this case, we display the total only 800 * on the second (p != NULL) pass. 801 */ 802 if (!entries && (!(f_longform || f_size) || p == NULL)) 803 return; 804 805 d.list = list; 806 d.entries = entries; 807 d.maxlen = maxlen; 808 if (needstats) { 809 d.bcfile = bcfile; 810 d.btotal = btotal; 811 (void)snprintf(buf, sizeof(buf), "%lu", maxblock); 812 d.s_block = strlen(buf); 813 d.s_flags = maxflags; 814 d.s_label = maxlabelstr; 815 d.s_group = maxgroup; 816 (void)snprintf(buf, sizeof(buf), "%lu", maxinode); 817 d.s_inode = strlen(buf); 818 (void)snprintf(buf, sizeof(buf), "%lu", maxnlink); 819 d.s_nlink = strlen(buf); 820 (void)snprintf(buf, sizeof(buf), "%ju", maxsize); 821 d.s_size = strlen(buf); 822 d.s_user = maxuser; 823 } 824 printfcn(&d); 825 output = 1; 826 827 if (f_longform) 828 for (cur = list; cur; cur = cur->fts_link) 829 free(cur->fts_pointer); 830} 831 832/* 833 * Ordering for mastercmp: 834 * If ordering the argv (fts_level = FTS_ROOTLEVEL) return non-directories 835 * as larger than directories. Within either group, use the sort function. 836 * All other levels use the sort function. Error entries remain unsorted. 837 */ 838static int 839mastercmp(const FTSENT * const *a, const FTSENT * const *b) 840{ 841 int a_info, b_info; 842 843 a_info = (*a)->fts_info; 844 if (a_info == FTS_ERR) 845 return (0); 846 b_info = (*b)->fts_info; 847 if (b_info == FTS_ERR) 848 return (0); 849 850 if (a_info == FTS_NS || b_info == FTS_NS) 851 return (namecmp(*a, *b)); 852 853 if (a_info != b_info && 854 (*a)->fts_level == FTS_ROOTLEVEL && !f_listdir) { 855 if (a_info == FTS_D) 856 return (1); 857 if (b_info == FTS_D) 858 return (-1); 859 } 860 return (sortfcn(*a, *b)); 861} 862