ls.c revision 114583
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 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37#ifndef lint 38static const char copyright[] = 39"@(#) Copyright (c) 1989, 1993, 1994\n\ 40 The Regents of the University of California. All rights reserved.\n"; 41#endif /* not lint */ 42 43#if 0 44#ifndef lint 45static char sccsid[] = "@(#)ls.c 8.5 (Berkeley) 4/2/94"; 46#endif /* not lint */ 47#endif 48#include <sys/cdefs.h> 49__FBSDID("$FreeBSD: head/bin/ls/ls.c 114583 2003-05-03 16:39:34Z markm $"); 50 51#include <sys/types.h> 52#include <sys/stat.h> 53#include <sys/ioctl.h> 54#include <sys/mac.h> 55 56#include <dirent.h> 57#include <err.h> 58#include <errno.h> 59#include <fts.h> 60#include <grp.h> 61#include <inttypes.h> 62#include <limits.h> 63#include <locale.h> 64#include <pwd.h> 65#include <stdio.h> 66#include <stdlib.h> 67#include <string.h> 68#include <unistd.h> 69#ifdef COLORLS 70#include <termcap.h> 71#include <signal.h> 72#endif 73 74#include "ls.h" 75#include "extern.h" 76 77/* 78 * Upward approximation of the maximum number of characters needed to 79 * represent a value of integral type t as a string, excluding the 80 * NUL terminator, with provision for a sign. 81 */ 82#define STRBUF_SIZEOF(t) (1 + CHAR_BIT * sizeof(t) / 3 + 1) 83 84/* 85 * MAKENINES(n) turns n into (10**n)-1. This is useful for converting a width 86 * into a number that wide in decimal. 87 * XXX: Overflows are not considered. 88 */ 89#define MAKENINES(n) \ 90 do { \ 91 intmax_t i; \ 92 \ 93 /* Use a loop as all values of n are small. */ \ 94 for (i = 1; n > 0; i *= 10) \ 95 n--; \ 96 n = i - 1; \ 97 } while(0) 98 99static void display(const FTSENT *, FTSENT *, int); 100static int mastercmp(const FTSENT * const *, const FTSENT * const *); 101static void traverse(int, char **, int); 102 103static void (*printfcn)(const DISPLAY *); 104static int (*sortfcn)(const FTSENT *, const FTSENT *); 105 106long blocksize; /* block size units */ 107int termwidth = 80; /* default terminal width */ 108 109/* flags */ 110 int f_accesstime; /* use time of last access */ 111 int f_flags; /* show flags associated with a file */ 112 int f_humanval; /* show human-readable file sizes */ 113 int f_inode; /* print inode */ 114static int f_kblocks; /* print size in kilobytes */ 115static int f_listdir; /* list actual directory, not contents */ 116static int f_listdot; /* list files beginning with . */ 117 int f_longform; /* long listing format */ 118 int f_nonprint; /* show unprintables as ? */ 119static int f_nosort; /* don't sort output */ 120 int f_notabs; /* don't use tab-separated multi-col output */ 121static int f_numericonly; /* don't convert uid/gid to name */ 122 int f_octal; /* show unprintables as \xxx */ 123 int f_octal_escape; /* like f_octal but use C escapes if possible */ 124static int f_recursive; /* ls subdirectories also */ 125static int f_reversesort; /* reverse whatever sort is used */ 126 int f_sectime; /* print the real time for all files */ 127static int f_singlecol; /* use single column output */ 128 int f_size; /* list size in short listing */ 129 int f_slash; /* similar to f_type, but only for dirs */ 130 int f_sortacross; /* sort across rows, not down columns */ 131 int f_statustime; /* use time of last mode change */ 132static int f_stream; /* stream the output, separate with commas */ 133static int f_timesort; /* sort by time vice name */ 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 /* Root is -A automatically. */ 182 if (!getuid()) 183 f_listdot = 1; 184 185 fts_options = FTS_PHYSICAL; 186 while ((ch = getopt(argc, argv, "1ABCFGHLPRTWZabcdfghiklmnopqrstuwx")) 187 != -1) { 188 switch (ch) { 189 /* 190 * The -1, -C, -x and -l options all override each other so 191 * shell aliasing works right. 192 */ 193 case '1': 194 f_singlecol = 1; 195 f_longform = 0; 196 f_stream = 0; 197 break; 198 case 'B': 199 f_nonprint = 0; 200 f_octal = 1; 201 f_octal_escape = 0; 202 break; 203 case 'C': 204 f_sortacross = f_longform = f_singlecol = 0; 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 and -u options override each other. */ 217 case 'c': 218 f_statustime = 1; 219 f_accesstime = 0; 220 break; 221 case 'u': 222 f_accesstime = 1; 223 f_statustime = 0; 224 break; 225 case 'F': 226 f_type = 1; 227 f_slash = 0; 228 break; 229 case 'H': 230 fts_options |= FTS_COMFOLLOW; 231 break; 232 case 'G': 233 setenv("CLICOLOR", "", 1); 234 break; 235 case 'L': 236 fts_options &= ~FTS_PHYSICAL; 237 fts_options |= FTS_LOGICAL; 238 break; 239 case 'P': 240 fts_options &= ~FTS_COMFOLLOW; 241 fts_options &= ~FTS_LOGICAL; 242 fts_options |= FTS_PHYSICAL; 243 break; 244 case 'R': 245 f_recursive = 1; 246 break; 247 case 'a': 248 fts_options |= FTS_SEEDOT; 249 /* FALLTHROUGH */ 250 case 'A': 251 f_listdot = 1; 252 break; 253 /* The -d option turns off the -R option. */ 254 case 'd': 255 f_listdir = 1; 256 f_recursive = 0; 257 break; 258 case 'f': 259 f_nosort = 1; 260 break; 261 case 'g': /* Compatibility with 4.3BSD. */ 262 break; 263 case 'h': 264 f_humanval = 1; 265 break; 266 case 'i': 267 f_inode = 1; 268 break; 269 case 'k': 270 f_kblocks = 1; 271 break; 272 case 'm': 273 f_stream = 1; 274 f_singlecol = 0; 275 f_longform = 0; 276 break; 277 case 'n': 278 f_numericonly = 1; 279 break; 280 case 'o': 281 f_flags = 1; 282 break; 283 case 'p': 284 f_slash = 1; 285 f_type = 1; 286 break; 287 case 'q': 288 f_nonprint = 1; 289 f_octal = 0; 290 f_octal_escape = 0; 291 break; 292 case 'r': 293 f_reversesort = 1; 294 break; 295 case 's': 296 f_size = 1; 297 break; 298 case 'T': 299 f_sectime = 1; 300 break; 301 case 't': 302 f_timesort = 1; 303 break; 304 case 'W': 305 f_whiteout = 1; 306 break; 307 case 'b': 308 f_nonprint = 0; 309 f_octal = 0; 310 f_octal_escape = 1; 311 break; 312 case 'w': 313 f_nonprint = 0; 314 f_octal = 0; 315 f_octal_escape = 0; 316 break; 317 case 'Z': 318 f_label = 1; 319 break; 320 default: 321 case '?': 322 usage(); 323 } 324 } 325 argc -= optind; 326 argv += optind; 327 328 /* Enabling of colours is conditional on the environment. */ 329 if (getenv("CLICOLOR") && 330 (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE"))) 331#ifdef COLORLS 332 if (tgetent(termcapbuf, getenv("TERM")) == 1) { 333 ansi_fgcol = tgetstr("AF", &bp); 334 ansi_bgcol = tgetstr("AB", &bp); 335 attrs_off = tgetstr("me", &bp); 336 enter_bold = tgetstr("md", &bp); 337 338 /* To switch colours off use 'op' if 339 * available, otherwise use 'oc', or 340 * don't do colours at all. */ 341 ansi_coloff = tgetstr("op", &bp); 342 if (!ansi_coloff) 343 ansi_coloff = tgetstr("oc", &bp); 344 if (ansi_fgcol && ansi_bgcol && ansi_coloff) 345 f_color = 1; 346 } 347#else 348 warnx("color support not compiled in"); 349#endif /*COLORLS*/ 350 351#ifdef COLORLS 352 if (f_color) { 353 /* 354 * We can't put tabs and color sequences together: 355 * column number will be incremented incorrectly 356 * for "stty oxtabs" mode. 357 */ 358 f_notabs = 1; 359 (void)signal(SIGINT, colorquit); 360 (void)signal(SIGQUIT, colorquit); 361 parsecolors(getenv("LSCOLORS")); 362 } 363#endif 364 365 /* 366 * If not -F, -i, -l, -s or -t options, don't require stat 367 * information, unless in color mode in which case we do 368 * need this to determine which colors to display. 369 */ 370 if (!f_inode && !f_longform && !f_size && !f_timesort && !f_type 371#ifdef COLORLS 372 && !f_color 373#endif 374 ) 375 fts_options |= FTS_NOSTAT; 376 377 /* 378 * If not -F, -d or -l options, follow any symbolic links listed on 379 * the command line. 380 */ 381 if (!f_longform && !f_listdir && !f_type) 382 fts_options |= FTS_COMFOLLOW; 383 384 /* 385 * If -W, show whiteout entries 386 */ 387#ifdef FTS_WHITEOUT 388 if (f_whiteout) 389 fts_options |= FTS_WHITEOUT; 390#endif 391 392 /* If -l or -s, figure out block size. */ 393 if (f_longform || f_size) { 394 if (f_kblocks) 395 blocksize = 2; 396 else { 397 (void)getbsize(¬used, &blocksize); 398 blocksize /= 512; 399 } 400 } 401 /* Select a sort function. */ 402 if (f_reversesort) { 403 if (!f_timesort) 404 sortfcn = revnamecmp; 405 else if (f_accesstime) 406 sortfcn = revacccmp; 407 else if (f_statustime) 408 sortfcn = revstatcmp; 409 else /* Use modification time. */ 410 sortfcn = revmodcmp; 411 } else { 412 if (!f_timesort) 413 sortfcn = namecmp; 414 else if (f_accesstime) 415 sortfcn = acccmp; 416 else if (f_statustime) 417 sortfcn = statcmp; 418 else /* Use modification time. */ 419 sortfcn = modcmp; 420 } 421 422 /* Select a print function. */ 423 if (f_singlecol) 424 printfcn = printscol; 425 else if (f_longform) 426 printfcn = printlong; 427 else if (f_stream) 428 printfcn = printstream; 429 else 430 printfcn = printcol; 431 432 if (argc) 433 traverse(argc, argv, fts_options); 434 else 435 traverse(1, dotav, fts_options); 436 exit(rval); 437} 438 439static int output; /* If anything output. */ 440 441/* 442 * Traverse() walks the logical directory structure specified by the argv list 443 * in the order specified by the mastercmp() comparison function. During the 444 * traversal it passes linked lists of structures to display() which represent 445 * a superset (may be exact set) of the files to be displayed. 446 */ 447static void 448traverse(int argc, char *argv[], int options) 449{ 450 FTS *ftsp; 451 FTSENT *p, *chp; 452 int ch_options; 453 454 if ((ftsp = 455 fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL) 456 err(1, "fts_open"); 457 458 display(NULL, fts_children(ftsp, 0), options); 459 if (f_listdir) 460 return; 461 462 /* 463 * If not recursing down this tree and don't need stat info, just get 464 * the names. 465 */ 466 ch_options = !f_recursive && !f_label && 467 options & FTS_NOSTAT ? FTS_NAMEONLY : 0; 468 469 while ((p = fts_read(ftsp)) != NULL) 470 switch (p->fts_info) { 471 case FTS_DC: 472 warnx("%s: directory causes a cycle", p->fts_name); 473 break; 474 case FTS_DNR: 475 case FTS_ERR: 476 warnx("%s: %s", p->fts_name, strerror(p->fts_errno)); 477 rval = 1; 478 break; 479 case FTS_D: 480 if (p->fts_level != FTS_ROOTLEVEL && 481 p->fts_name[0] == '.' && !f_listdot) 482 break; 483 484 /* 485 * If already output something, put out a newline as 486 * a separator. If multiple arguments, precede each 487 * directory with its name. 488 */ 489 if (output) { 490 putchar('\n'); 491 (void)printname(p->fts_path); 492 puts(":"); 493 } else if (argc > 1) { 494 (void)printname(p->fts_path); 495 puts(":"); 496 output = 1; 497 } 498 chp = fts_children(ftsp, ch_options); 499 display(p, chp, options); 500 501 if (!f_recursive && chp != NULL) 502 (void)fts_set(ftsp, p, FTS_SKIP); 503 break; 504 default: 505 break; 506 } 507 if (errno) 508 err(1, "fts_read"); 509} 510 511/* 512 * Display() takes a linked list of FTSENT structures and passes the list 513 * along with any other necessary information to the print function. P 514 * points to the parent directory of the display list. 515 */ 516static void 517display(const FTSENT *p, FTSENT *list, int options) 518{ 519 struct stat *sp; 520 DISPLAY d; 521 FTSENT *cur; 522 NAMES *np; 523 off_t maxsize; 524 long maxblock; 525 u_long btotal, labelstrlen, maxinode, maxlen, maxnlink; 526 u_long maxlabelstr; 527 int bcfile, maxflags; 528 gid_t maxgroup; 529 uid_t maxuser; 530 size_t flen, ulen, glen; 531 char *initmax; 532 int entries, needstats; 533 const char *user, *group; 534 char *flags, *labelstr = NULL; 535 char buf[STRBUF_SIZEOF(u_quad_t) + 1]; 536 char ngroup[STRBUF_SIZEOF(uid_t) + 1]; 537 char nuser[STRBUF_SIZEOF(gid_t) + 1]; 538 539 /* 540 * If list is NULL there are two possibilities: that the parent 541 * directory p has no children, or that fts_children() returned an 542 * error. We ignore the error case since it will be replicated 543 * on the next call to fts_read() on the post-order visit to the 544 * directory p, and will be signaled in traverse(). 545 */ 546 if (list == NULL) 547 return; 548 549 needstats = f_inode || f_longform || f_size; 550 flen = 0; 551 btotal = 0; 552 initmax = getenv("LS_COLWIDTHS"); 553 /* Fields match -lios order. New ones should be added at the end. */ 554 maxlabelstr = maxblock = maxinode = maxlen = maxnlink = 555 maxuser = maxgroup = maxflags = maxsize = 0; 556 if (initmax != NULL && *initmax != '\0') { 557 char *initmax2, *jinitmax; 558 int ninitmax; 559 560 /* Fill-in "::" as "0:0:0" for the sake of scanf. */ 561 jinitmax = malloc(strlen(initmax) * 2 + 2); 562 if (jinitmax == NULL) 563 err(1, "malloc"); 564 initmax2 = jinitmax; 565 if (*initmax == ':') 566 strcpy(initmax2, "0:"), initmax2 += 2; 567 else 568 *initmax2++ = *initmax, *initmax2 = '\0'; 569 for (initmax++; *initmax != '\0'; initmax++) { 570 if (initmax[-1] == ':' && initmax[0] == ':') { 571 *initmax2++ = '0'; 572 *initmax2++ = initmax[0]; 573 initmax2[1] = '\0'; 574 } else { 575 *initmax2++ = initmax[0]; 576 initmax2[1] = '\0'; 577 } 578 } 579 if (initmax2[-1] == ':') 580 strcpy(initmax2, "0"); 581 582 ninitmax = sscanf(jinitmax, 583 " %lu : %ld : %lu : %u : %u : %i : %jd : %lu : %lu ", 584 &maxinode, &maxblock, &maxnlink, &maxuser, 585 &maxgroup, &maxflags, &maxsize, &maxlen, &maxlabelstr); 586 f_notabs = 1; 587 switch (ninitmax) { 588 case 0: 589 maxinode = 0; 590 /* FALLTHROUGH */ 591 case 1: 592 maxblock = 0; 593 /* FALLTHROUGH */ 594 case 2: 595 maxnlink = 0; 596 /* FALLTHROUGH */ 597 case 3: 598 maxuser = 0; 599 /* FALLTHROUGH */ 600 case 4: 601 maxgroup = 0; 602 /* FALLTHROUGH */ 603 case 5: 604 maxflags = 0; 605 /* FALLTHROUGH */ 606 case 6: 607 maxsize = 0; 608 /* FALLTHROUGH */ 609 case 7: 610 maxlen = 0; 611 /* FALLTHROUGH */ 612 case 8: 613 maxlabelstr = 0; 614 /* FALLTHROUGH */ 615#ifdef COLORLS 616 if (!f_color) 617#endif 618 f_notabs = 0; 619 /* FALLTHROUGH */ 620 default: 621 break; 622 } 623 MAKENINES(maxinode); 624 MAKENINES(maxblock); 625 MAKENINES(maxnlink); 626 MAKENINES(maxsize); 627 } 628 bcfile = 0; 629 flags = NULL; 630 for (cur = list, entries = 0; cur; cur = cur->fts_link) { 631 if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) { 632 warnx("%s: %s", 633 cur->fts_name, strerror(cur->fts_errno)); 634 cur->fts_number = NO_PRINT; 635 rval = 1; 636 continue; 637 } 638 /* 639 * P is NULL if list is the argv list, to which different rules 640 * apply. 641 */ 642 if (p == NULL) { 643 /* Directories will be displayed later. */ 644 if (cur->fts_info == FTS_D && !f_listdir) { 645 cur->fts_number = NO_PRINT; 646 continue; 647 } 648 } else { 649 /* Only display dot file if -a/-A set. */ 650 if (cur->fts_name[0] == '.' && !f_listdot) { 651 cur->fts_number = NO_PRINT; 652 continue; 653 } 654 } 655 if (cur->fts_namelen > maxlen) 656 maxlen = cur->fts_namelen; 657 if (f_octal || f_octal_escape) { 658 u_long t = len_octal(cur->fts_name, cur->fts_namelen); 659 660 if (t > maxlen) 661 maxlen = t; 662 } 663 if (needstats) { 664 sp = cur->fts_statp; 665 if (sp->st_blocks > maxblock) 666 maxblock = sp->st_blocks; 667 if (sp->st_ino > maxinode) 668 maxinode = sp->st_ino; 669 if (sp->st_nlink > maxnlink) 670 maxnlink = sp->st_nlink; 671 if (sp->st_size > maxsize) 672 maxsize = sp->st_size; 673 674 btotal += sp->st_blocks; 675 if (f_longform) { 676 if (f_numericonly) { 677 (void)snprintf(nuser, sizeof(nuser), 678 "%u", sp->st_uid); 679 (void)snprintf(ngroup, sizeof(ngroup), 680 "%u", sp->st_gid); 681 user = nuser; 682 group = ngroup; 683 } else { 684 user = user_from_uid(sp->st_uid, 0); 685 group = group_from_gid(sp->st_gid, 0); 686 } 687 if ((ulen = strlen(user)) > maxuser) 688 maxuser = ulen; 689 if ((glen = strlen(group)) > maxgroup) 690 maxgroup = glen; 691 if (f_flags) { 692 flags = fflagstostr(sp->st_flags); 693 if (flags != NULL && *flags == '\0') { 694 free(flags); 695 flags = strdup("-"); 696 } 697 if (flags == NULL) 698 err(1, "fflagstostr"); 699 flen = strlen(flags); 700 if (flen > (size_t)maxflags) 701 maxflags = flen; 702 } else 703 flen = 0; 704 labelstr = NULL; 705 if (f_label) { 706 char name[PATH_MAX + 1]; 707 mac_t label; 708 int error; 709 710 error = mac_prepare_file_label(&label); 711 if (error == -1) { 712 warn("MAC label for %s/%s", 713 cur->fts_parent->fts_path, 714 cur->fts_name); 715 goto label_out; 716 } 717 718 if (cur->fts_level == FTS_ROOTLEVEL) 719 snprintf(name, sizeof(name), 720 "%s", cur->fts_name); 721 else 722 snprintf(name, sizeof(name), 723 "%s/%s", cur->fts_parent-> 724 fts_accpath, cur->fts_name); 725 726 if (options & FTS_LOGICAL) 727 error = mac_get_file(name, 728 label); 729 else 730 error = mac_get_link(name, 731 label); 732 if (error == -1) { 733 warn("MAC label for %s/%s", 734 cur->fts_parent->fts_path, 735 cur->fts_name); 736 mac_free(label); 737 goto label_out; 738 } 739 740 error = mac_to_text(label, 741 &labelstr); 742 if (error == -1) { 743 warn("MAC label for %s/%s", 744 cur->fts_parent->fts_path, 745 cur->fts_name); 746 mac_free(label); 747 goto label_out; 748 } 749 mac_free(label); 750label_out: 751 if (labelstr == NULL) 752 labelstr = strdup("-"); 753 labelstrlen = strlen(labelstr); 754 if (labelstrlen > maxlabelstr) 755 maxlabelstr = labelstrlen; 756 } else 757 labelstrlen = 0; 758 759 if ((np = malloc(sizeof(NAMES) + labelstrlen + 760 ulen + glen + flen + 4)) == NULL) 761 err(1, "malloc"); 762 763 np->user = &np->data[0]; 764 (void)strcpy(np->user, user); 765 np->group = &np->data[ulen + 1]; 766 (void)strcpy(np->group, group); 767 768 if (S_ISCHR(sp->st_mode) || 769 S_ISBLK(sp->st_mode)) 770 bcfile = 1; 771 772 if (f_flags) { 773 np->flags = &np->data[ulen + glen + 2]; 774 (void)strcpy(np->flags, flags); 775 free(flags); 776 } 777 if (f_label) { 778 np->label = &np->data[ulen + glen + 2 779 + (f_flags ? flen + 1 : 0)]; 780 (void)strcpy(np->label, labelstr); 781 free(labelstr); 782 } 783 cur->fts_pointer = np; 784 } 785 } 786 ++entries; 787 } 788 789 if (!entries) 790 return; 791 792 d.list = list; 793 d.entries = entries; 794 d.maxlen = maxlen; 795 if (needstats) { 796 d.bcfile = bcfile; 797 d.btotal = btotal; 798 (void)snprintf(buf, sizeof(buf), "%lu", maxblock); 799 d.s_block = strlen(buf); 800 d.s_flags = maxflags; 801 d.s_label = maxlabelstr; 802 d.s_group = maxgroup; 803 (void)snprintf(buf, sizeof(buf), "%lu", maxinode); 804 d.s_inode = strlen(buf); 805 (void)snprintf(buf, sizeof(buf), "%lu", maxnlink); 806 d.s_nlink = strlen(buf); 807 (void)snprintf(buf, sizeof(buf), "%ju", maxsize); 808 d.s_size = strlen(buf); 809 d.s_user = maxuser; 810 } 811 printfcn(&d); 812 output = 1; 813 814 if (f_longform) 815 for (cur = list; cur; cur = cur->fts_link) 816 free(cur->fts_pointer); 817} 818 819/* 820 * Ordering for mastercmp: 821 * If ordering the argv (fts_level = FTS_ROOTLEVEL) return non-directories 822 * as larger than directories. Within either group, use the sort function. 823 * All other levels use the sort function. Error entries remain unsorted. 824 */ 825static int 826mastercmp(const FTSENT * const *a, const FTSENT * const *b) 827{ 828 int a_info, b_info; 829 830 a_info = (*a)->fts_info; 831 if (a_info == FTS_ERR) 832 return (0); 833 b_info = (*b)->fts_info; 834 if (b_info == FTS_ERR) 835 return (0); 836 837 if (a_info == FTS_NS || b_info == FTS_NS) 838 return (namecmp(*a, *b)); 839 840 if (a_info != b_info && 841 (*a)->fts_level == FTS_ROOTLEVEL && !f_listdir) { 842 if (a_info == FTS_D) 843 return (1); 844 if (b_info == FTS_D) 845 return (-1); 846 } 847 return (sortfcn(*a, *b)); 848} 849