ls.c revision 139969
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 139969 2005-01-10 08:39:26Z imp $"); 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 . */ 113 int f_longform; /* long listing format */ 114 int f_nonprint; /* show unprintables as ? */ 115static int f_nosort; /* don't sort output */ 116 int f_notabs; /* don't use tab-separated multi-col output */ 117static int f_numericonly; /* don't convert uid/gid to name */ 118 int f_octal; /* show unprintables as \xxx */ 119 int f_octal_escape; /* like f_octal but use C escapes if possible */ 120static int f_recursive; /* ls subdirectories also */ 121static int f_reversesort; /* reverse whatever sort is used */ 122 int f_sectime; /* print the real time for all files */ 123static int f_singlecol; /* use single column output */ 124 int f_size; /* list size in short listing */ 125 int f_slash; /* similar to f_type, but only for dirs */ 126 int f_sortacross; /* sort across rows, not down columns */ 127 int f_statustime; /* use time of last mode change */ 128static int f_stream; /* stream the output, separate with commas */ 129static int f_timesort; /* sort by time vice name */ 130 int f_type; /* add type character for non-regular files */ 131static int f_whiteout; /* show whiteout entries */ 132 int f_label; /* show MAC label */ 133#ifdef COLORLS 134 int f_color; /* add type in color for non-regular files */ 135 136char *ansi_bgcol; /* ANSI sequence to set background colour */ 137char *ansi_fgcol; /* ANSI sequence to set foreground colour */ 138char *ansi_coloff; /* ANSI sequence to reset colours */ 139char *attrs_off; /* ANSI sequence to turn off attributes */ 140char *enter_bold; /* ANSI sequence to set color to bold mode */ 141#endif 142 143static int rval; 144 145int 146main(int argc, char *argv[]) 147{ 148 static char dot[] = ".", *dotav[] = {dot, NULL}; 149 struct winsize win; 150 int ch, fts_options, notused; 151 char *p; 152#ifdef COLORLS 153 char termcapbuf[1024]; /* termcap definition buffer */ 154 char tcapbuf[512]; /* capability buffer */ 155 char *bp = tcapbuf; 156#endif 157 158 (void)setlocale(LC_ALL, ""); 159 160 /* Terminal defaults to -Cq, non-terminal defaults to -1. */ 161 if (isatty(STDOUT_FILENO)) { 162 termwidth = 80; 163 if ((p = getenv("COLUMNS")) != NULL && *p != '\0') 164 termwidth = atoi(p); 165 else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) != -1 && 166 win.ws_col > 0) 167 termwidth = win.ws_col; 168 f_nonprint = 1; 169 } else { 170 f_singlecol = 1; 171 /* retrieve environment variable, in case of explicit -C */ 172 p = getenv("COLUMNS"); 173 if (p) 174 termwidth = atoi(p); 175 } 176 177 /* Root is -A automatically. */ 178 if (!getuid()) 179 f_listdot = 1; 180 181 fts_options = FTS_PHYSICAL; 182 while ((ch = getopt(argc, argv, "1ABCFGHLPRTWZabcdfghiklmnopqrstuwx")) 183 != -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 'l': 203 f_longform = 1; 204 f_singlecol = 0; 205 f_stream = 0; 206 break; 207 case 'x': 208 f_sortacross = 1; 209 f_longform = 0; 210 f_singlecol = 0; 211 break; 212 /* The -c and -u options override each other. */ 213 case 'c': 214 f_statustime = 1; 215 f_accesstime = 0; 216 break; 217 case 'u': 218 f_accesstime = 1; 219 f_statustime = 0; 220 break; 221 case 'F': 222 f_type = 1; 223 f_slash = 0; 224 break; 225 case 'H': 226 fts_options |= FTS_COMFOLLOW; 227 break; 228 case 'G': 229 setenv("CLICOLOR", "", 1); 230 break; 231 case 'L': 232 fts_options &= ~FTS_PHYSICAL; 233 fts_options |= FTS_LOGICAL; 234 break; 235 case 'P': 236 fts_options &= ~FTS_COMFOLLOW; 237 fts_options &= ~FTS_LOGICAL; 238 fts_options |= FTS_PHYSICAL; 239 break; 240 case 'R': 241 f_recursive = 1; 242 break; 243 case 'a': 244 fts_options |= FTS_SEEDOT; 245 /* FALLTHROUGH */ 246 case 'A': 247 f_listdot = 1; 248 break; 249 /* The -d option turns off the -R option. */ 250 case 'd': 251 f_listdir = 1; 252 f_recursive = 0; 253 break; 254 case 'f': 255 f_nosort = 1; 256 break; 257 case 'g': /* Compatibility with 4.3BSD. */ 258 break; 259 case 'h': 260 f_humanval = 1; 261 break; 262 case 'i': 263 f_inode = 1; 264 break; 265 case 'k': 266 f_humanval = 0; 267 f_kblocks = 1; 268 break; 269 case 'm': 270 f_stream = 1; 271 f_singlecol = 0; 272 f_longform = 0; 273 break; 274 case 'n': 275 f_numericonly = 1; 276 break; 277 case 'o': 278 f_flags = 1; 279 break; 280 case 'p': 281 f_slash = 1; 282 f_type = 1; 283 break; 284 case 'q': 285 f_nonprint = 1; 286 f_octal = 0; 287 f_octal_escape = 0; 288 break; 289 case 'r': 290 f_reversesort = 1; 291 break; 292 case 's': 293 f_size = 1; 294 break; 295 case 'T': 296 f_sectime = 1; 297 break; 298 case 't': 299 f_timesort = 1; 300 break; 301 case 'W': 302 f_whiteout = 1; 303 break; 304 case 'b': 305 f_nonprint = 0; 306 f_octal = 0; 307 f_octal_escape = 1; 308 break; 309 case 'w': 310 f_nonprint = 0; 311 f_octal = 0; 312 f_octal_escape = 0; 313 break; 314 case 'Z': 315 f_label = 1; 316 break; 317 default: 318 case '?': 319 usage(); 320 } 321 } 322 argc -= optind; 323 argv += optind; 324 325 /* Enabling of colours is conditional on the environment. */ 326 if (getenv("CLICOLOR") && 327 (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE"))) 328#ifdef COLORLS 329 if (tgetent(termcapbuf, getenv("TERM")) == 1) { 330 ansi_fgcol = tgetstr("AF", &bp); 331 ansi_bgcol = tgetstr("AB", &bp); 332 attrs_off = tgetstr("me", &bp); 333 enter_bold = tgetstr("md", &bp); 334 335 /* To switch colours off use 'op' if 336 * available, otherwise use 'oc', or 337 * don't do colours at all. */ 338 ansi_coloff = tgetstr("op", &bp); 339 if (!ansi_coloff) 340 ansi_coloff = tgetstr("oc", &bp); 341 if (ansi_fgcol && ansi_bgcol && ansi_coloff) 342 f_color = 1; 343 } 344#else 345 warnx("color support not compiled in"); 346#endif /*COLORLS*/ 347 348#ifdef COLORLS 349 if (f_color) { 350 /* 351 * We can't put tabs and color sequences together: 352 * column number will be incremented incorrectly 353 * for "stty oxtabs" mode. 354 */ 355 f_notabs = 1; 356 (void)signal(SIGINT, colorquit); 357 (void)signal(SIGQUIT, colorquit); 358 parsecolors(getenv("LSCOLORS")); 359 } 360#endif 361 362 /* 363 * If not -F, -i, -l, -s or -t options, don't require stat 364 * information, unless in color mode in which case we do 365 * need this to determine which colors to display. 366 */ 367 if (!f_inode && !f_longform && !f_size && !f_timesort && !f_type 368#ifdef COLORLS 369 && !f_color 370#endif 371 ) 372 fts_options |= FTS_NOSTAT; 373 374 /* 375 * If not -F, -d or -l options, follow any symbolic links listed on 376 * the command line. 377 */ 378 if (!f_longform && !f_listdir && !f_type) 379 fts_options |= FTS_COMFOLLOW; 380 381 /* 382 * If -W, show whiteout entries 383 */ 384#ifdef FTS_WHITEOUT 385 if (f_whiteout) 386 fts_options |= FTS_WHITEOUT; 387#endif 388 389 /* If -l or -s, figure out block size. */ 390 if (f_longform || f_size) { 391 if (f_kblocks) 392 blocksize = 2; 393 else { 394 (void)getbsize(¬used, &blocksize); 395 blocksize /= 512; 396 } 397 } 398 /* Select a sort function. */ 399 if (f_reversesort) { 400 if (!f_timesort) 401 sortfcn = revnamecmp; 402 else if (f_accesstime) 403 sortfcn = revacccmp; 404 else if (f_statustime) 405 sortfcn = revstatcmp; 406 else /* Use modification time. */ 407 sortfcn = revmodcmp; 408 } else { 409 if (!f_timesort) 410 sortfcn = namecmp; 411 else if (f_accesstime) 412 sortfcn = acccmp; 413 else if (f_statustime) 414 sortfcn = statcmp; 415 else /* Use modification time. */ 416 sortfcn = modcmp; 417 } 418 419 /* Select a print function. */ 420 if (f_singlecol) 421 printfcn = printscol; 422 else if (f_longform) 423 printfcn = printlong; 424 else if (f_stream) 425 printfcn = printstream; 426 else 427 printfcn = printcol; 428 429 if (argc) 430 traverse(argc, argv, fts_options); 431 else 432 traverse(1, dotav, fts_options); 433 exit(rval); 434} 435 436static int output; /* If anything output. */ 437 438/* 439 * Traverse() walks the logical directory structure specified by the argv list 440 * in the order specified by the mastercmp() comparison function. During the 441 * traversal it passes linked lists of structures to display() which represent 442 * a superset (may be exact set) of the files to be displayed. 443 */ 444static void 445traverse(int argc, char *argv[], int options) 446{ 447 FTS *ftsp; 448 FTSENT *p, *chp; 449 int ch_options; 450 451 if ((ftsp = 452 fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL) 453 err(1, "fts_open"); 454 455 /* 456 * We ignore errors from fts_children here since they will be 457 * replicated and signalled on the next call to fts_read() below. 458 */ 459 chp = fts_children(ftsp, 0); 460 if (chp != NULL) 461 display(NULL, chp, options); 462 if (f_listdir) 463 return; 464 465 /* 466 * If not recursing down this tree and don't need stat info, just get 467 * the names. 468 */ 469 ch_options = !f_recursive && !f_label && 470 options & FTS_NOSTAT ? FTS_NAMEONLY : 0; 471 472 while ((p = fts_read(ftsp)) != NULL) 473 switch (p->fts_info) { 474 case FTS_DC: 475 warnx("%s: directory causes a cycle", p->fts_name); 476 break; 477 case FTS_DNR: 478 case FTS_ERR: 479 warnx("%s: %s", p->fts_name, strerror(p->fts_errno)); 480 rval = 1; 481 break; 482 case FTS_D: 483 if (p->fts_level != FTS_ROOTLEVEL && 484 p->fts_name[0] == '.' && !f_listdot) 485 break; 486 487 /* 488 * If already output something, put out a newline as 489 * a separator. If multiple arguments, precede each 490 * directory with its name. 491 */ 492 if (output) { 493 putchar('\n'); 494 (void)printname(p->fts_path); 495 puts(":"); 496 } else if (argc > 1) { 497 (void)printname(p->fts_path); 498 puts(":"); 499 output = 1; 500 } 501 chp = fts_children(ftsp, ch_options); 502 display(p, chp, options); 503 504 if (!f_recursive && chp != NULL) 505 (void)fts_set(ftsp, p, FTS_SKIP); 506 break; 507 default: 508 break; 509 } 510 if (errno) 511 err(1, "fts_read"); 512} 513 514/* 515 * Display() takes a linked list of FTSENT structures and passes the list 516 * along with any other necessary information to the print function. P 517 * points to the parent directory of the display list. 518 */ 519static void 520display(const FTSENT *p, FTSENT *list, int options) 521{ 522 struct stat *sp; 523 DISPLAY d; 524 FTSENT *cur; 525 NAMES *np; 526 off_t maxsize; 527 long maxblock; 528 u_long btotal, labelstrlen, maxinode, maxlen, maxnlink; 529 u_long maxlabelstr; 530 int bcfile, maxflags; 531 gid_t maxgroup; 532 uid_t maxuser; 533 size_t flen, ulen, glen; 534 char *initmax; 535 int entries, needstats; 536 const char *user, *group; 537 char *flags, *labelstr = NULL; 538 char buf[STRBUF_SIZEOF(u_quad_t) + 1]; 539 char ngroup[STRBUF_SIZEOF(uid_t) + 1]; 540 char nuser[STRBUF_SIZEOF(gid_t) + 1]; 541 542 needstats = f_inode || f_longform || f_size; 543 flen = 0; 544 btotal = 0; 545 initmax = getenv("LS_COLWIDTHS"); 546 /* Fields match -lios order. New ones should be added at the end. */ 547 maxlabelstr = maxblock = maxinode = maxlen = maxnlink = 548 maxuser = maxgroup = maxflags = maxsize = 0; 549 if (initmax != NULL && *initmax != '\0') { 550 char *initmax2, *jinitmax; 551 int ninitmax; 552 553 /* Fill-in "::" as "0:0:0" for the sake of scanf. */ 554 jinitmax = malloc(strlen(initmax) * 2 + 2); 555 if (jinitmax == NULL) 556 err(1, "malloc"); 557 initmax2 = jinitmax; 558 if (*initmax == ':') 559 strcpy(initmax2, "0:"), initmax2 += 2; 560 else 561 *initmax2++ = *initmax, *initmax2 = '\0'; 562 for (initmax++; *initmax != '\0'; initmax++) { 563 if (initmax[-1] == ':' && initmax[0] == ':') { 564 *initmax2++ = '0'; 565 *initmax2++ = initmax[0]; 566 initmax2[1] = '\0'; 567 } else { 568 *initmax2++ = initmax[0]; 569 initmax2[1] = '\0'; 570 } 571 } 572 if (initmax2[-1] == ':') 573 strcpy(initmax2, "0"); 574 575 ninitmax = sscanf(jinitmax, 576 " %lu : %ld : %lu : %u : %u : %i : %jd : %lu : %lu ", 577 &maxinode, &maxblock, &maxnlink, &maxuser, 578 &maxgroup, &maxflags, &maxsize, &maxlen, &maxlabelstr); 579 f_notabs = 1; 580 switch (ninitmax) { 581 case 0: 582 maxinode = 0; 583 /* FALLTHROUGH */ 584 case 1: 585 maxblock = 0; 586 /* FALLTHROUGH */ 587 case 2: 588 maxnlink = 0; 589 /* FALLTHROUGH */ 590 case 3: 591 maxuser = 0; 592 /* FALLTHROUGH */ 593 case 4: 594 maxgroup = 0; 595 /* FALLTHROUGH */ 596 case 5: 597 maxflags = 0; 598 /* FALLTHROUGH */ 599 case 6: 600 maxsize = 0; 601 /* FALLTHROUGH */ 602 case 7: 603 maxlen = 0; 604 /* FALLTHROUGH */ 605 case 8: 606 maxlabelstr = 0; 607 /* FALLTHROUGH */ 608#ifdef COLORLS 609 if (!f_color) 610#endif 611 f_notabs = 0; 612 /* FALLTHROUGH */ 613 default: 614 break; 615 } 616 MAKENINES(maxinode); 617 MAKENINES(maxblock); 618 MAKENINES(maxnlink); 619 MAKENINES(maxsize); 620 free(jinitmax); 621 } 622 bcfile = 0; 623 flags = NULL; 624 for (cur = list, entries = 0; cur; cur = cur->fts_link) { 625 if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) { 626 warnx("%s: %s", 627 cur->fts_name, strerror(cur->fts_errno)); 628 cur->fts_number = NO_PRINT; 629 rval = 1; 630 continue; 631 } 632 /* 633 * P is NULL if list is the argv list, to which different rules 634 * apply. 635 */ 636 if (p == NULL) { 637 /* Directories will be displayed later. */ 638 if (cur->fts_info == FTS_D && !f_listdir) { 639 cur->fts_number = NO_PRINT; 640 continue; 641 } 642 } else { 643 /* Only display dot file if -a/-A set. */ 644 if (cur->fts_name[0] == '.' && !f_listdot) { 645 cur->fts_number = NO_PRINT; 646 continue; 647 } 648 } 649 if (cur->fts_namelen > maxlen) 650 maxlen = cur->fts_namelen; 651 if (f_octal || f_octal_escape) { 652 u_long t = len_octal(cur->fts_name, cur->fts_namelen); 653 654 if (t > maxlen) 655 maxlen = t; 656 } 657 if (needstats) { 658 sp = cur->fts_statp; 659 if (sp->st_blocks > maxblock) 660 maxblock = sp->st_blocks; 661 if (sp->st_ino > maxinode) 662 maxinode = sp->st_ino; 663 if (sp->st_nlink > maxnlink) 664 maxnlink = sp->st_nlink; 665 if (sp->st_size > maxsize) 666 maxsize = sp->st_size; 667 668 btotal += sp->st_blocks; 669 if (f_longform) { 670 if (f_numericonly) { 671 (void)snprintf(nuser, sizeof(nuser), 672 "%u", sp->st_uid); 673 (void)snprintf(ngroup, sizeof(ngroup), 674 "%u", sp->st_gid); 675 user = nuser; 676 group = ngroup; 677 } else { 678 user = user_from_uid(sp->st_uid, 0); 679 group = group_from_gid(sp->st_gid, 0); 680 } 681 if ((ulen = strlen(user)) > maxuser) 682 maxuser = ulen; 683 if ((glen = strlen(group)) > maxgroup) 684 maxgroup = glen; 685 if (f_flags) { 686 flags = fflagstostr(sp->st_flags); 687 if (flags != NULL && *flags == '\0') { 688 free(flags); 689 flags = strdup("-"); 690 } 691 if (flags == NULL) 692 err(1, "fflagstostr"); 693 flen = strlen(flags); 694 if (flen > (size_t)maxflags) 695 maxflags = flen; 696 } else 697 flen = 0; 698 labelstr = NULL; 699 if (f_label) { 700 char name[PATH_MAX + 1]; 701 mac_t label; 702 int error; 703 704 error = mac_prepare_file_label(&label); 705 if (error == -1) { 706 warn("MAC label for %s/%s", 707 cur->fts_parent->fts_path, 708 cur->fts_name); 709 goto label_out; 710 } 711 712 if (cur->fts_level == FTS_ROOTLEVEL) 713 snprintf(name, sizeof(name), 714 "%s", cur->fts_name); 715 else 716 snprintf(name, sizeof(name), 717 "%s/%s", cur->fts_parent-> 718 fts_accpath, cur->fts_name); 719 720 if (options & FTS_LOGICAL) 721 error = mac_get_file(name, 722 label); 723 else 724 error = mac_get_link(name, 725 label); 726 if (error == -1) { 727 warn("MAC label for %s/%s", 728 cur->fts_parent->fts_path, 729 cur->fts_name); 730 mac_free(label); 731 goto label_out; 732 } 733 734 error = mac_to_text(label, 735 &labelstr); 736 if (error == -1) { 737 warn("MAC label for %s/%s", 738 cur->fts_parent->fts_path, 739 cur->fts_name); 740 mac_free(label); 741 goto label_out; 742 } 743 mac_free(label); 744label_out: 745 if (labelstr == NULL) 746 labelstr = strdup("-"); 747 labelstrlen = strlen(labelstr); 748 if (labelstrlen > maxlabelstr) 749 maxlabelstr = labelstrlen; 750 } else 751 labelstrlen = 0; 752 753 if ((np = malloc(sizeof(NAMES) + labelstrlen + 754 ulen + glen + flen + 4)) == NULL) 755 err(1, "malloc"); 756 757 np->user = &np->data[0]; 758 (void)strcpy(np->user, user); 759 np->group = &np->data[ulen + 1]; 760 (void)strcpy(np->group, group); 761 762 if (S_ISCHR(sp->st_mode) || 763 S_ISBLK(sp->st_mode)) 764 bcfile = 1; 765 766 if (f_flags) { 767 np->flags = &np->data[ulen + glen + 2]; 768 (void)strcpy(np->flags, flags); 769 free(flags); 770 } 771 if (f_label) { 772 np->label = &np->data[ulen + glen + 2 773 + (f_flags ? flen + 1 : 0)]; 774 (void)strcpy(np->label, labelstr); 775 free(labelstr); 776 } 777 cur->fts_pointer = np; 778 } 779 } 780 ++entries; 781 } 782 783 /* 784 * If there are no entries to display, we normally stop right 785 * here. However, we must continue if we have to display the 786 * total block count. In this case, we display the total only 787 * on the second (p != NULL) pass. 788 */ 789 if (!entries && (!(f_longform || f_size) || p == NULL)) 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