ls.c revision 202945
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 202945 2010-01-24 19:23:07Z jh $"); 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_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 */ 116 int f_nonprint; /* show unprintables as ? */ 117static int f_nosort; /* don't sort output */ 118 int f_notabs; /* don't use tab-separated multi-col output */ 119static int f_numericonly; /* don't convert uid/gid to name */ 120 int f_octal; /* show unprintables as \xxx */ 121 int f_octal_escape; /* like f_octal but use C escapes if possible */ 122static int f_recursive; /* ls subdirectories also */ 123static int f_reversesort; /* reverse whatever sort is used */ 124 int f_sectime; /* print the real time for all files */ 125static int f_singlecol; /* use single column output */ 126 int f_size; /* list size in short listing */ 127 int f_slash; /* similar to f_type, but only for dirs */ 128 int f_sortacross; /* sort across rows, not down columns */ 129 int f_statustime; /* use time of last mode change */ 130static int f_stream; /* stream the output, separate with commas */ 131static int f_timesort; /* sort by time vice name */ 132 char *f_timeformat; /* user-specified time format */ 133static int f_sizesort; 134 int f_type; /* add type character for non-regular files */ 135static int f_whiteout; /* show whiteout entries */ 136 int f_label; /* show MAC label */ 137#ifdef COLORLS 138 int f_color; /* add type in color for non-regular files */ 139 140char *ansi_bgcol; /* ANSI sequence to set background colour */ 141char *ansi_fgcol; /* ANSI sequence to set foreground colour */ 142char *ansi_coloff; /* ANSI sequence to reset colours */ 143char *attrs_off; /* ANSI sequence to turn off attributes */ 144char *enter_bold; /* ANSI sequence to set color to bold mode */ 145#endif 146 147static int rval; 148 149int 150main(int argc, char *argv[]) 151{ 152 static char dot[] = ".", *dotav[] = {dot, NULL}; 153 struct winsize win; 154 int ch, fts_options, notused; 155 char *p; 156#ifdef COLORLS 157 char termcapbuf[1024]; /* termcap definition buffer */ 158 char tcapbuf[512]; /* capability buffer */ 159 char *bp = tcapbuf; 160#endif 161 162 (void)setlocale(LC_ALL, ""); 163 164 /* Terminal defaults to -Cq, non-terminal defaults to -1. */ 165 if (isatty(STDOUT_FILENO)) { 166 termwidth = 80; 167 if ((p = getenv("COLUMNS")) != NULL && *p != '\0') 168 termwidth = atoi(p); 169 else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) != -1 && 170 win.ws_col > 0) 171 termwidth = win.ws_col; 172 f_nonprint = 1; 173 } else { 174 f_singlecol = 1; 175 /* retrieve environment variable, in case of explicit -C */ 176 p = getenv("COLUMNS"); 177 if (p) 178 termwidth = atoi(p); 179 } 180 181 fts_options = FTS_PHYSICAL; 182 while ((ch = getopt(argc, argv, 183 "1ABCD:FGHILPRSTUWZabcdfghiklmnopqrstuwx")) != -1) { 184 switch (ch) { 185 /* 186 * The -1, -C, -x and -l options all override each other so 187 * shell aliasing works right. 188 */ 189 case '1': 190 f_singlecol = 1; 191 f_longform = 0; 192 f_stream = 0; 193 break; 194 case 'B': 195 f_nonprint = 0; 196 f_octal = 1; 197 f_octal_escape = 0; 198 break; 199 case 'C': 200 f_sortacross = f_longform = f_singlecol = 0; 201 break; 202 case 'D': 203 f_timeformat = optarg; 204 break; 205 case 'l': 206 f_longform = 1; 207 f_singlecol = 0; 208 f_stream = 0; 209 break; 210 case 'x': 211 f_sortacross = 1; 212 f_longform = 0; 213 f_singlecol = 0; 214 break; 215 /* The -c, -u, and -U options override each other. */ 216 case 'c': 217 f_statustime = 1; 218 f_accesstime = 0; 219 f_birthtime = 0; 220 break; 221 case 'u': 222 f_accesstime = 1; 223 f_statustime = 0; 224 f_birthtime = 0; 225 break; 226 case 'U': 227 f_birthtime = 1; 228 f_accesstime = 0; 229 f_statustime = 0; 230 break; 231 case 'F': 232 f_type = 1; 233 f_slash = 0; 234 break; 235 case 'H': 236 fts_options |= FTS_COMFOLLOW; 237 break; 238 case 'G': 239 setenv("CLICOLOR", "", 1); 240 break; 241 case 'L': 242 fts_options &= ~FTS_PHYSICAL; 243 fts_options |= FTS_LOGICAL; 244 break; 245 case 'P': 246 fts_options &= ~FTS_COMFOLLOW; 247 fts_options &= ~FTS_LOGICAL; 248 fts_options |= FTS_PHYSICAL; 249 break; 250 case 'R': 251 f_recursive = 1; 252 break; 253 case 'a': 254 fts_options |= FTS_SEEDOT; 255 /* FALLTHROUGH */ 256 case 'A': 257 f_listdot = 1; 258 break; 259 case 'I': 260 f_noautodot = 1; 261 break; 262 /* The -d option turns off the -R option. */ 263 case 'd': 264 f_listdir = 1; 265 f_recursive = 0; 266 break; 267 case 'f': 268 f_nosort = 1; 269 break; 270 case 'g': /* Compatibility with 4.3BSD. */ 271 break; 272 case 'h': 273 f_humanval = 1; 274 break; 275 case 'i': 276 f_inode = 1; 277 break; 278 case 'k': 279 f_humanval = 0; 280 f_kblocks = 1; 281 break; 282 case 'm': 283 f_stream = 1; 284 f_singlecol = 0; 285 f_longform = 0; 286 break; 287 case 'n': 288 f_numericonly = 1; 289 break; 290 case 'o': 291 f_flags = 1; 292 break; 293 case 'p': 294 f_slash = 1; 295 f_type = 1; 296 break; 297 case 'q': 298 f_nonprint = 1; 299 f_octal = 0; 300 f_octal_escape = 0; 301 break; 302 case 'r': 303 f_reversesort = 1; 304 break; 305 case 's': 306 f_size = 1; 307 break; 308 case 'T': 309 f_sectime = 1; 310 break; 311 /* The -t and -S options override each other. */ 312 case 't': 313 f_timesort = 1; 314 f_sizesort = 0; 315 break; 316 case 'S': 317 f_sizesort = 1; 318 f_timesort = 0; 319 break; 320 case 'W': 321 f_whiteout = 1; 322 break; 323 case 'b': 324 f_nonprint = 0; 325 f_octal = 0; 326 f_octal_escape = 1; 327 break; 328 case 'w': 329 f_nonprint = 0; 330 f_octal = 0; 331 f_octal_escape = 0; 332 break; 333 case 'Z': 334 f_label = 1; 335 break; 336 default: 337 case '?': 338 usage(); 339 } 340 } 341 argc -= optind; 342 argv += optind; 343 344 /* Root is -A automatically unless -I. */ 345 if (!f_listdot && getuid() == (uid_t)0 && !f_noautodot) 346 f_listdot = 1; 347 348 /* Enabling of colours is conditional on the environment. */ 349 if (getenv("CLICOLOR") && 350 (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE"))) 351#ifdef COLORLS 352 if (tgetent(termcapbuf, getenv("TERM")) == 1) { 353 ansi_fgcol = tgetstr("AF", &bp); 354 ansi_bgcol = tgetstr("AB", &bp); 355 attrs_off = tgetstr("me", &bp); 356 enter_bold = tgetstr("md", &bp); 357 358 /* To switch colours off use 'op' if 359 * available, otherwise use 'oc', or 360 * don't do colours at all. */ 361 ansi_coloff = tgetstr("op", &bp); 362 if (!ansi_coloff) 363 ansi_coloff = tgetstr("oc", &bp); 364 if (ansi_fgcol && ansi_bgcol && ansi_coloff) 365 f_color = 1; 366 } 367#else 368 warnx("color support not compiled in"); 369#endif /*COLORLS*/ 370 371#ifdef COLORLS 372 if (f_color) { 373 /* 374 * We can't put tabs and color sequences together: 375 * column number will be incremented incorrectly 376 * for "stty oxtabs" mode. 377 */ 378 f_notabs = 1; 379 (void)signal(SIGINT, colorquit); 380 (void)signal(SIGQUIT, colorquit); 381 parsecolors(getenv("LSCOLORS")); 382 } 383#endif 384 385 /* 386 * If not -F, -i, -l, -s, -S or -t options, don't require stat 387 * information, unless in color mode in which case we do 388 * need this to determine which colors to display. 389 */ 390 if (!f_inode && !f_longform && !f_size && !f_timesort && 391 !f_sizesort && !f_type 392#ifdef COLORLS 393 && !f_color 394#endif 395 ) 396 fts_options |= FTS_NOSTAT; 397 398 /* 399 * If not -F, -d or -l options, follow any symbolic links listed on 400 * the command line. 401 */ 402 if (!f_longform && !f_listdir && (!f_type || f_slash)) 403 fts_options |= FTS_COMFOLLOW; 404 405 /* 406 * If -W, show whiteout entries 407 */ 408#ifdef FTS_WHITEOUT 409 if (f_whiteout) 410 fts_options |= FTS_WHITEOUT; 411#endif 412 413 /* If -l or -s, figure out block size. */ 414 if (f_longform || f_size) { 415 if (f_kblocks) 416 blocksize = 2; 417 else { 418 (void)getbsize(¬used, &blocksize); 419 blocksize /= 512; 420 } 421 } 422 /* Select a sort function. */ 423 if (f_reversesort) { 424 if (!f_timesort && !f_sizesort) 425 sortfcn = revnamecmp; 426 else if (f_sizesort) 427 sortfcn = revsizecmp; 428 else if (f_accesstime) 429 sortfcn = revacccmp; 430 else if (f_birthtime) 431 sortfcn = revbirthcmp; 432 else if (f_statustime) 433 sortfcn = revstatcmp; 434 else /* Use modification time. */ 435 sortfcn = revmodcmp; 436 } else { 437 if (!f_timesort && !f_sizesort) 438 sortfcn = namecmp; 439 else if (f_sizesort) 440 sortfcn = sizecmp; 441 else if (f_accesstime) 442 sortfcn = acccmp; 443 else if (f_birthtime) 444 sortfcn = birthcmp; 445 else if (f_statustime) 446 sortfcn = statcmp; 447 else /* Use modification time. */ 448 sortfcn = modcmp; 449 } 450 451 /* Select a print function. */ 452 if (f_singlecol) 453 printfcn = printscol; 454 else if (f_longform) 455 printfcn = printlong; 456 else if (f_stream) 457 printfcn = printstream; 458 else 459 printfcn = printcol; 460 461 if (argc) 462 traverse(argc, argv, fts_options); 463 else 464 traverse(1, dotav, fts_options); 465 exit(rval); 466} 467 468static int output; /* If anything output. */ 469 470/* 471 * Traverse() walks the logical directory structure specified by the argv list 472 * in the order specified by the mastercmp() comparison function. During the 473 * traversal it passes linked lists of structures to display() which represent 474 * a superset (may be exact set) of the files to be displayed. 475 */ 476static void 477traverse(int argc, char *argv[], int options) 478{ 479 FTS *ftsp; 480 FTSENT *p, *chp; 481 int ch_options; 482 483 if ((ftsp = 484 fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL) 485 err(1, "fts_open"); 486 487 /* 488 * We ignore errors from fts_children here since they will be 489 * replicated and signalled on the next call to fts_read() below. 490 */ 491 chp = fts_children(ftsp, 0); 492 if (chp != NULL) 493 display(NULL, chp, options); 494 if (f_listdir) 495 return; 496 497 /* 498 * If not recursing down this tree and don't need stat info, just get 499 * the names. 500 */ 501 ch_options = !f_recursive && !f_label && 502 options & FTS_NOSTAT ? FTS_NAMEONLY : 0; 503 504 while ((p = fts_read(ftsp)) != NULL) 505 switch (p->fts_info) { 506 case FTS_DC: 507 warnx("%s: directory causes a cycle", p->fts_name); 508 break; 509 case FTS_DNR: 510 case FTS_ERR: 511 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 512 rval = 1; 513 break; 514 case FTS_D: 515 if (p->fts_level != FTS_ROOTLEVEL && 516 p->fts_name[0] == '.' && !f_listdot) 517 break; 518 519 /* 520 * If already output something, put out a newline as 521 * a separator. If multiple arguments, precede each 522 * directory with its name. 523 */ 524 if (output) { 525 putchar('\n'); 526 (void)printname(p->fts_path); 527 puts(":"); 528 } else if (argc > 1) { 529 (void)printname(p->fts_path); 530 puts(":"); 531 output = 1; 532 } 533 chp = fts_children(ftsp, ch_options); 534 display(p, chp, options); 535 536 if (!f_recursive && chp != NULL) 537 (void)fts_set(ftsp, p, FTS_SKIP); 538 break; 539 default: 540 break; 541 } 542 if (errno) 543 err(1, "fts_read"); 544} 545 546/* 547 * Display() takes a linked list of FTSENT structures and passes the list 548 * along with any other necessary information to the print function. P 549 * points to the parent directory of the display list. 550 */ 551static void 552display(const FTSENT *p, FTSENT *list, int options) 553{ 554 struct stat *sp; 555 DISPLAY d; 556 FTSENT *cur; 557 NAMES *np; 558 off_t maxsize; 559 long maxblock; 560 u_long btotal, labelstrlen, maxinode, maxlen, maxnlink; 561 u_long maxlabelstr; 562 u_int devstrlen; 563 int maxflags; 564 gid_t maxgroup; 565 uid_t maxuser; 566 size_t flen, ulen, glen; 567 char *initmax; 568 int entries, needstats; 569 const char *user, *group; 570 char *flags, *labelstr = NULL; 571 char buf[STRBUF_SIZEOF(u_quad_t) + 1]; 572 char ngroup[STRBUF_SIZEOF(uid_t) + 1]; 573 char nuser[STRBUF_SIZEOF(gid_t) + 1]; 574 575 needstats = f_inode || f_longform || f_size; 576 flen = 0; 577 btotal = 0; 578 initmax = getenv("LS_COLWIDTHS"); 579 /* Fields match -lios order. New ones should be added at the end. */ 580 maxlabelstr = maxblock = maxinode = maxlen = maxnlink = 581 maxuser = maxgroup = maxflags = maxsize = 0; 582 if (initmax != NULL && *initmax != '\0') { 583 char *initmax2, *jinitmax; 584 int ninitmax; 585 586 /* Fill-in "::" as "0:0:0" for the sake of scanf. */ 587 jinitmax = malloc(strlen(initmax) * 2 + 2); 588 if (jinitmax == NULL) 589 err(1, "malloc"); 590 initmax2 = jinitmax; 591 if (*initmax == ':') 592 strcpy(initmax2, "0:"), initmax2 += 2; 593 else 594 *initmax2++ = *initmax, *initmax2 = '\0'; 595 for (initmax++; *initmax != '\0'; initmax++) { 596 if (initmax[-1] == ':' && initmax[0] == ':') { 597 *initmax2++ = '0'; 598 *initmax2++ = initmax[0]; 599 initmax2[1] = '\0'; 600 } else { 601 *initmax2++ = initmax[0]; 602 initmax2[1] = '\0'; 603 } 604 } 605 if (initmax2[-1] == ':') 606 strcpy(initmax2, "0"); 607 608 ninitmax = sscanf(jinitmax, 609 " %lu : %ld : %lu : %u : %u : %i : %jd : %lu : %lu ", 610 &maxinode, &maxblock, &maxnlink, &maxuser, 611 &maxgroup, &maxflags, &maxsize, &maxlen, &maxlabelstr); 612 f_notabs = 1; 613 switch (ninitmax) { 614 case 0: 615 maxinode = 0; 616 /* FALLTHROUGH */ 617 case 1: 618 maxblock = 0; 619 /* FALLTHROUGH */ 620 case 2: 621 maxnlink = 0; 622 /* FALLTHROUGH */ 623 case 3: 624 maxuser = 0; 625 /* FALLTHROUGH */ 626 case 4: 627 maxgroup = 0; 628 /* FALLTHROUGH */ 629 case 5: 630 maxflags = 0; 631 /* FALLTHROUGH */ 632 case 6: 633 maxsize = 0; 634 /* FALLTHROUGH */ 635 case 7: 636 maxlen = 0; 637 /* FALLTHROUGH */ 638 case 8: 639 maxlabelstr = 0; 640 /* FALLTHROUGH */ 641#ifdef COLORLS 642 if (!f_color) 643#endif 644 f_notabs = 0; 645 /* FALLTHROUGH */ 646 default: 647 break; 648 } 649 MAKENINES(maxinode); 650 MAKENINES(maxblock); 651 MAKENINES(maxnlink); 652 MAKENINES(maxsize); 653 free(jinitmax); 654 } 655 devstrlen = 0; 656 flags = NULL; 657 for (cur = list, entries = 0; cur; cur = cur->fts_link) { 658 if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) { 659 warnx("%s: %s", 660 cur->fts_name, strerror(cur->fts_errno)); 661 cur->fts_number = NO_PRINT; 662 rval = 1; 663 continue; 664 } 665 /* 666 * P is NULL if list is the argv list, to which different rules 667 * apply. 668 */ 669 if (p == NULL) { 670 /* Directories will be displayed later. */ 671 if (cur->fts_info == FTS_D && !f_listdir) { 672 cur->fts_number = NO_PRINT; 673 continue; 674 } 675 } else { 676 /* Only display dot file if -a/-A set. */ 677 if (cur->fts_name[0] == '.' && !f_listdot) { 678 cur->fts_number = NO_PRINT; 679 continue; 680 } 681 } 682 if (cur->fts_namelen > maxlen) 683 maxlen = cur->fts_namelen; 684 if (f_octal || f_octal_escape) { 685 u_long t = len_octal(cur->fts_name, cur->fts_namelen); 686 687 if (t > maxlen) 688 maxlen = t; 689 } 690 if (needstats) { 691 sp = cur->fts_statp; 692 if (sp->st_blocks > maxblock) 693 maxblock = sp->st_blocks; 694 if (sp->st_ino > maxinode) 695 maxinode = sp->st_ino; 696 if (sp->st_nlink > maxnlink) 697 maxnlink = sp->st_nlink; 698 if (sp->st_size > maxsize) 699 maxsize = sp->st_size; 700 701 btotal += sp->st_blocks; 702 if (f_longform) { 703 if (f_numericonly) { 704 (void)snprintf(nuser, sizeof(nuser), 705 "%u", sp->st_uid); 706 (void)snprintf(ngroup, sizeof(ngroup), 707 "%u", sp->st_gid); 708 user = nuser; 709 group = ngroup; 710 } else { 711 user = user_from_uid(sp->st_uid, 0); 712 group = group_from_gid(sp->st_gid, 0); 713 } 714 if ((ulen = strlen(user)) > maxuser) 715 maxuser = ulen; 716 if ((glen = strlen(group)) > maxgroup) 717 maxgroup = glen; 718 if (f_flags) { 719 flags = fflagstostr(sp->st_flags); 720 if (flags != NULL && *flags == '\0') { 721 free(flags); 722 flags = strdup("-"); 723 } 724 if (flags == NULL) 725 err(1, "fflagstostr"); 726 flen = strlen(flags); 727 if (flen > (size_t)maxflags) 728 maxflags = flen; 729 } else 730 flen = 0; 731 labelstr = NULL; 732 if (f_label) { 733 char name[PATH_MAX + 1]; 734 mac_t label; 735 int error; 736 737 error = mac_prepare_file_label(&label); 738 if (error == -1) { 739 warn("MAC label for %s/%s", 740 cur->fts_parent->fts_path, 741 cur->fts_name); 742 goto label_out; 743 } 744 745 if (cur->fts_level == FTS_ROOTLEVEL) 746 snprintf(name, sizeof(name), 747 "%s", cur->fts_name); 748 else 749 snprintf(name, sizeof(name), 750 "%s/%s", cur->fts_parent-> 751 fts_accpath, cur->fts_name); 752 753 if (options & FTS_LOGICAL) 754 error = mac_get_file(name, 755 label); 756 else 757 error = mac_get_link(name, 758 label); 759 if (error == -1) { 760 warn("MAC label for %s/%s", 761 cur->fts_parent->fts_path, 762 cur->fts_name); 763 mac_free(label); 764 goto label_out; 765 } 766 767 error = mac_to_text(label, 768 &labelstr); 769 if (error == -1) { 770 warn("MAC label for %s/%s", 771 cur->fts_parent->fts_path, 772 cur->fts_name); 773 mac_free(label); 774 goto label_out; 775 } 776 mac_free(label); 777label_out: 778 if (labelstr == NULL) 779 labelstr = strdup("-"); 780 labelstrlen = strlen(labelstr); 781 if (labelstrlen > maxlabelstr) 782 maxlabelstr = labelstrlen; 783 } else 784 labelstrlen = 0; 785 786 if ((np = malloc(sizeof(NAMES) + labelstrlen + 787 ulen + glen + flen + 4)) == NULL) 788 err(1, "malloc"); 789 790 np->user = &np->data[0]; 791 (void)strcpy(np->user, user); 792 np->group = &np->data[ulen + 1]; 793 (void)strcpy(np->group, group); 794 795 if ((S_ISCHR(sp->st_mode) || 796 S_ISBLK(sp->st_mode)) && 797 devstrlen < DEVSTR_HEX_LEN) { 798 if (minor(sp->st_rdev) > 255 || 799 minor(sp->st_rdev) < 0) 800 devstrlen = DEVSTR_HEX_LEN; 801 else 802 devstrlen = DEVSTR_LEN; 803 } 804 805 if (f_flags) { 806 np->flags = &np->data[ulen + glen + 2]; 807 (void)strcpy(np->flags, flags); 808 free(flags); 809 } 810 if (f_label) { 811 np->label = &np->data[ulen + glen + 2 812 + (f_flags ? flen + 1 : 0)]; 813 (void)strcpy(np->label, labelstr); 814 free(labelstr); 815 } 816 cur->fts_pointer = np; 817 } 818 } 819 ++entries; 820 } 821 822 /* 823 * If there are no entries to display, we normally stop right 824 * here. However, we must continue if we have to display the 825 * total block count. In this case, we display the total only 826 * on the second (p != NULL) pass. 827 */ 828 if (!entries && (!(f_longform || f_size) || p == NULL)) 829 return; 830 831 d.list = list; 832 d.entries = entries; 833 d.maxlen = maxlen; 834 if (needstats) { 835 d.btotal = btotal; 836 (void)snprintf(buf, sizeof(buf), "%lu", maxblock); 837 d.s_block = strlen(buf); 838 d.s_flags = maxflags; 839 d.s_label = maxlabelstr; 840 d.s_group = maxgroup; 841 (void)snprintf(buf, sizeof(buf), "%lu", maxinode); 842 d.s_inode = strlen(buf); 843 (void)snprintf(buf, sizeof(buf), "%lu", maxnlink); 844 d.s_nlink = strlen(buf); 845 if (f_humanval) 846 d.s_size = HUMANVALSTR_LEN; 847 else { 848 (void)snprintf(buf, sizeof(buf), "%ju", maxsize); 849 d.s_size = strlen(buf); 850 } 851 if (d.s_size < devstrlen) 852 d.s_size = devstrlen; 853 d.s_user = maxuser; 854 } 855 printfcn(&d); 856 output = 1; 857 858 if (f_longform) 859 for (cur = list; cur; cur = cur->fts_link) 860 free(cur->fts_pointer); 861} 862 863/* 864 * Ordering for mastercmp: 865 * If ordering the argv (fts_level = FTS_ROOTLEVEL) return non-directories 866 * as larger than directories. Within either group, use the sort function. 867 * All other levels use the sort function. Error entries remain unsorted. 868 */ 869static int 870mastercmp(const FTSENT * const *a, const FTSENT * const *b) 871{ 872 int a_info, b_info; 873 874 a_info = (*a)->fts_info; 875 if (a_info == FTS_ERR) 876 return (0); 877 b_info = (*b)->fts_info; 878 if (b_info == FTS_ERR) 879 return (0); 880 881 if (a_info == FTS_NS || b_info == FTS_NS) 882 return (namecmp(*a, *b)); 883 884 if (a_info != b_info && 885 (*a)->fts_level == FTS_ROOTLEVEL && !f_listdir) { 886 if (a_info == FTS_D) 887 return (1); 888 if (b_info == FTS_D) 889 return (-1); 890 } 891 return (sortfcn(*a, *b)); 892} 893