ls/ls.c

   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
  38 static 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
  45 static char sccsid[] = "@(#)ls.c        8.5 (Berkeley) 4/2/94";
  46 #endif /* not lint */
  47 #endif
  48 #include <sys/cdefs.h>
  49 __RCSID("$FreeBSD: src/bin/ls/ls.c,v 1.66 2002/09/21 01:28:36 wollman Exp $");
  50
  51 #include <sys/types.h>
  52 #include <sys/stat.h>
  53 #include <sys/ioctl.h>
  54
  55 #include <dirent.h>
  56 #include <err.h>
  57 #include <errno.h>
  58 #include <fts.h>
  59 #include <grp.h>
  60 #include <limits.h>
  61 #include <locale.h>
  62 #include <pwd.h>
  63 #include <stdio.h>
  64 #include <stdlib.h>
  65 #include <string.h>
  66 #include <unistd.h>
  67 #ifdef COLORLS
  68 #include <termcap.h>
  69 #include <signal.h>
  70 #endif
  71
  72 #include "ls.h"
  73 #include "extern.h"
  74 #ifndef __APPLE__
  75 #include "lomac.h"
  76 #endif /* __APPLE__ */
  77
  78 /*
  79  * Upward approximation of the maximum number of characters needed to
  80  * represent a value of integral type t as a string, excluding the
  81  * NUL terminator, with provision for a sign.
  82  */
  83 #define STRBUF_SIZEOF(t)        (1 + CHAR_BIT * sizeof(t) / 3 + 1)
  84
  85 static void      display(FTSENT *, FTSENT *);
  86 static u_quad_t  makenines(u_long);
  87 static int       mastercmp(const FTSENT * const *, const FTSENT * const *);
  88 static void      traverse(int, char **, int);
  89
  90 static void (*printfcn)(DISPLAY *);
  91 static int (*sortfcn)(const FTSENT *, const FTSENT *);
  92
  93 long blocksize;                 /* block size units */
  94 int termwidth = 80;             /* default terminal width */
  95
  96 /* flags */
  97        int f_accesstime;        /* use time of last access */
  98        int f_flags;             /* show flags associated with a file */
  99        int f_humanval;          /* show human-readable file sizes */
 100        int f_inode;             /* print inode */
 101 static int f_kblocks;           /* print size in kilobytes */
 102 static int f_listdir;           /* list actual directory, not contents */
 103 static int f_listdot;           /* list files beginning with . */
 104        int f_longform;          /* long listing format */
 105        int f_nonprint;          /* show unprintables as ? */
 106 static int f_nosort;            /* don't sort output */
 107        int f_notabs;            /* don't use tab-separated multi-col output */
 108 static int f_numericonly;       /* don't convert uid/gid to name */
 109        int f_octal;             /* show unprintables as \xxx */
 110        int f_octal_escape;      /* like f_octal but use C escapes if possible */
 111 static int f_recursive;         /* ls subdirectories also */
 112 static int f_reversesort;       /* reverse whatever sort is used */
 113        int f_sectime;           /* print the real time for all files */
 114 static int f_singlecol;         /* use single column output */
 115        int f_size;              /* list size in short listing */
 116        int f_slash;             /* similar to f_type, but only for dirs */
 117        int f_sortacross;        /* sort across rows, not down columns */
 118        int f_statustime;        /* use time of last mode change */
 119        int f_stream;            /* stream the output, separate with commas */
 120 static int f_timesort;          /* sort by time vice name */
 121 static int f_sizesort;          /* sort by size */
 122        int f_type;              /* add type character for non-regular files */
 123 static int f_whiteout;          /* show whiteout entries */
 124        int f_lomac;             /* show LOMAC attributes */
 125 #ifdef COLORLS
 126        int f_color;             /* add type in color for non-regular files */
 127
 128 char *ansi_bgcol;               /* ANSI sequence to set background colour */
 129 char *ansi_fgcol;               /* ANSI sequence to set foreground colour */
 130 char *ansi_coloff;              /* ANSI sequence to reset colours */
 131 char *attrs_off;                /* ANSI sequence to turn off attributes */
 132 char *enter_bold;               /* ANSI sequence to set color to bold mode */
 133 #endif
 134
 135 static int rval;
 136
 137 int
 138 main(int argc, char *argv[])
 139 {
 140         static char dot[] = ".", *dotav[] = {dot, NULL};
 141         struct winsize win;
 142         int ch, fts_options, notused;
 143         char *p;
 144 #ifdef COLORLS
 145         char termcapbuf[1024];  /* termcap definition buffer */
 146         char tcapbuf[512];      /* capability buffer */
 147         char *bp = tcapbuf;
 148 #endif
 149
 150         (void)setlocale(LC_ALL, "");
 151
 152         /* Terminal defaults to -Cq, non-terminal defaults to -1. */
 153         if (isatty(STDOUT_FILENO)) {
 154                 termwidth = 80;
 155                 if ((p = getenv("COLUMNS")) != NULL && *p != '\0')
 156                         termwidth = atoi(p);
 157                 else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) != -1 &&
 158                     win.ws_col > 0)
 159                         termwidth = win.ws_col;
 160                 f_nonprint = 1;
 161         } else {
 162                 f_singlecol = 1;
 163                 /* retrieve environment variable, in case of explicit -C */
 164                 p = getenv("COLUMNS");
 165                 if (p)
 166                         termwidth = atoi(p);
 167         }
 168
 169         /* Root is -A automatically. */
 170         if (!getuid())
 171                 f_listdot = 1;
 172
 173         fts_options = FTS_PHYSICAL;
 174         while ((ch = getopt(argc, argv, "1ABCFGHLPRSTWZabcdfghiklmnopqrstuvwx"))
 175             != -1) {
 176                 switch (ch) {
 177                 /*
 178                  * The -1, -C, -x and -l options all override each other so
 179                  * shell aliasing works right.
 180                  */
 181                 case '1':
 182                         f_singlecol = 1;
 183                         f_longform = 0;
 184                         f_stream = 0;
 185                         break;
 186                 case 'B':
 187                         f_nonprint = 0;
 188                         f_octal = 1;
 189                         f_octal_escape = 0;
 190                         break;
 191                 case 'C':
 192                         f_sortacross = f_longform = f_singlecol = 0;
 193                         break;
 194                 case 'l':
 195                         f_longform = 1;
 196                         f_singlecol = 0;
 197                         f_stream = 0;
 198                         break;
 199                 case 'x':
 200                         f_sortacross = 1;
 201                         f_longform = 0;
 202                         f_singlecol = 0;
 203                         break;
 204                 /* The -c and -u options override each other. */
 205                 case 'c':
 206                         f_statustime = 1;
 207                         f_accesstime = 0;
 208                         break;
 209                 case 'u':
 210                         f_accesstime = 1;
 211                         f_statustime = 0;
 212                         break;
 213                 case 'F':
 214                         f_type = 1;
 215                         f_slash = 0;
 216                         break;
 217                 case 'H':
 218                         fts_options |= FTS_COMFOLLOW;
 219                         break;
 220                 case 'G':
 221                         setenv("CLICOLOR", "", 1);
 222                         break;
 223                 case 'L':
 224                         fts_options &= ~FTS_PHYSICAL;
 225                         fts_options |= FTS_LOGICAL;
 226                         break;
 227                 case 'P':
 228                         fts_options &= ~FTS_COMFOLLOW;
 229                         fts_options &= ~FTS_LOGICAL;
 230                         fts_options |= FTS_PHYSICAL;
 231                         break;
 232                 case 'R':
 233                         f_recursive = 1;
 234                         break;
 235                 case 'a':
 236                         fts_options |= FTS_SEEDOT;
 237                         /* FALLTHROUGH */
 238                 case 'A':
 239                         f_listdot = 1;
 240                         break;
 241                 /* The -d option turns off the -R option. */
 242                 case 'd':
 243                         f_listdir = 1;
 244                         f_recursive = 0;
 245                         break;
 246                 case 'f':
 247                         f_nosort = 1;
 248                         break;
 249                 case 'g':       /* Compatibility with 4.3BSD. */
 250                         break;
 251                 case 'h':
 252                         f_humanval = 1;
 253                         break;
 254                 case 'i':
 255                         f_inode = 1;
 256                         break;
 257                 case 'k':
 258                         f_kblocks = 1;
 259                         break;
 260                 case 'm':
 261                         f_stream = 1;
 262                         f_singlecol = 0;
 263                         f_longform = 0;
 264                         break;
 265                 case 'n':
 266                         f_numericonly = 1;
 267                         break;
 268                 case 'o':
 269                         f_flags = 1;
 270                         break;
 271                 case 'p':
 272                         f_slash = 1;
 273                         f_type = 1;
 274                         break;
 275                 case 'q':
 276                         f_nonprint = 1;
 277                         f_octal = 0;
 278                         f_octal_escape = 0;
 279                         break;
 280                 case 'r':
 281                         f_reversesort = 1;
 282                         break;
 283                 case 'S':
 284                         /* Darwin 1.4.1 compatibility */
 285                         f_sizesort = 1;
 286                         break;
 287                 case 's':
 288                         f_size = 1;
 289                         break;
 290                 case 'T':
 291                         f_sectime = 1;
 292                         break;
 293                 case 't':
 294                         f_timesort = 1;
 295                         break;
 296                 case 'W':
 297                         f_whiteout = 1;
 298                         break;
 299                 case 'v':
 300                         /* Darwin 1.4.1 compatibility */
 301                         f_nonprint = 0;
 302                         break;
 303                 case 'b':
 304                         f_nonprint = 0;
 305                         f_octal = 0;
 306                         f_octal_escape = 1;
 307                         break;
 308                 case 'w':
 309                         f_nonprint = 0;
 310                         f_octal = 0;
 311                         f_octal_escape = 0;
 312                         break;
 313                 case 'Z':
 314                         f_lomac = 1;
 315                         break;
 316                 default:
 317                 case '?':
 318                         usage();
 319                 }
 320         }
 321         argc -= optind;
 322         argv += optind;
 323
 324         /* Enabling of colours is conditional on the environment. */
 325         if (getenv("CLICOLOR") &&
 326             (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE")))
 327 #ifdef COLORLS
 328                 if (tgetent(termcapbuf, getenv("TERM")) == 1) {
 329                         ansi_fgcol = tgetstr("AF", &bp);
 330                         ansi_bgcol = tgetstr("AB", &bp);
 331                         attrs_off = tgetstr("me", &bp);
 332                         enter_bold = tgetstr("md", &bp);
 333
 334                         /* To switch colours off use 'op' if
 335                          * available, otherwise use 'oc', or
 336                          * don't do colours at all. */
 337                         ansi_coloff = tgetstr("op", &bp);
 338                         if (!ansi_coloff)
 339                                 ansi_coloff = tgetstr("oc", &bp);
 340                         if (ansi_fgcol && ansi_bgcol && ansi_coloff)
 341                                 f_color = 1;
 342                 }
 343 #else
 344                 (void)fprintf(stderr, "Color support not compiled in.\n");
 345 #endif /*COLORLS*/
 346
 347 #ifdef COLORLS
 348         if (f_color) {
 349                 /*
 350                  * We can't put tabs and color sequences together:
 351                  * column number will be incremented incorrectly
 352                  * for "stty oxtabs" mode.
 353                  */
 354                 f_notabs = 1;
 355                 (void)signal(SIGINT, colorquit);
 356                 (void)signal(SIGQUIT, colorquit);
 357                 parsecolors(getenv("LSCOLORS"));
 358         }
 359 #endif
 360
 361         /*
 362          * If not -F, -i, -l, -s or -t options, don't require stat
 363          * information, unless in color mode in which case we do
 364          * need this to determine which colors to display.
 365          */
 366         if (!f_inode && !f_longform && !f_size && !f_timesort && !f_type && !f_sizesort
 367 #ifdef COLORLS
 368             && !f_color
 369 #endif
 370             )
 371                 fts_options |= FTS_NOSTAT;
 372
 373         /*
 374          * If not -F, -d or -l options, follow any symbolic links listed on
 375          * the command line.
 376          */
 377         if (!f_longform && !f_listdir && !f_type)
 378                 fts_options |= FTS_COMFOLLOW;
 379
 380         /*
 381          * If -W, show whiteout entries
 382          */
 383 #ifdef FTS_WHITEOUT
 384         if (f_whiteout)
 385                 fts_options |= FTS_WHITEOUT;
 386 #endif
 387
 388         /* If -l or -s, figure out block size. */
 389         if (f_longform || f_size) {
 390                 if (f_kblocks)
 391                         blocksize = 2;
 392                 else {
 393                         (void)getbsize(&notused, &blocksize);
 394                         blocksize /= 512;
 395                 }
 396         }
 397         /* Select a sort function. */
 398         if (f_reversesort) {
 399                 if (f_sizesort)
 400                         sortfcn = revsizecmp;
 401                 else if (!f_timesort)
 402                         sortfcn = revnamecmp;
 403                 else if (f_accesstime)
 404                         sortfcn = revacccmp;
 405                 else if (f_statustime)
 406                         sortfcn = revstatcmp;
 407                 else            /* Use modification time. */
 408                         sortfcn = revmodcmp;
 409         } else {
 410                 if (f_sizesort)
 411                         sortfcn = sizecmp;
 412                 else 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
 439 static 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  */
 447 static void
 448 traverse(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));
 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 && options & FTS_NOSTAT ? FTS_NAMEONLY : 0;
 467
 468         while ((p = fts_read(ftsp)) != NULL)
 469                 switch (p->fts_info) {
 470                 case FTS_DC:
 471                         warnx("%s: directory causes a cycle", p->fts_name);
 472                         break;
 473                 case FTS_DNR:
 474                 case FTS_ERR:
 475                         warnx("%s: %s", p->fts_name, strerror(p->fts_errno));
 476                         rval = 1;
 477                         break;
 478                 case FTS_D:
 479                         if (p->fts_level != FTS_ROOTLEVEL &&
 480                             p->fts_name[0] == '.' && !f_listdot)
 481                                 break;
 482
 483                         /*
 484                          * If already output something, put out a newline as
 485                          * a separator.  If multiple arguments, precede each
 486                          * directory with its name.
 487                          */
 488                         if (output)
 489                                 (void)printf("\n%s:\n", p->fts_path);
 490                         else if (argc > 1) {
 491                                 (void)printf("%s:\n", p->fts_path);
 492                                 output = 1;
 493                         }
 494                         chp = fts_children(ftsp, ch_options);
 495                         display(p, chp);
 496
 497                         if (!f_recursive && chp != NULL)
 498                                 (void)fts_set(ftsp, p, FTS_SKIP);
 499                         break;
 500                 default:
 501                         break;
 502                 }
 503         if (errno)
 504                 err(1, "fts_read");
 505 }
 506
 507 /*
 508  * Display() takes a linked list of FTSENT structures and passes the list
 509  * along with any other necessary information to the print function.  P
 510  * points to the parent directory of the display list.
 511  */
 512 static void
 513 display(FTSENT *p, FTSENT *list)
 514 {
 515         struct stat *sp;
 516         DISPLAY d;
 517         FTSENT *cur;
 518         NAMES *np;
 519         off_t maxsize;
 520         u_int64_t btotal, maxblock;
 521         u_long lattrlen, maxinode, maxlen, maxnlink, maxlattr;
 522         int bcfile, maxflags;
 523         gid_t maxgroup;
 524         uid_t maxuser;
 525         size_t flen, ulen, glen;
 526         char *initmax;
 527         int entries, needstats;
 528         const char *user, *group;
 529         char *flags, *lattr = NULL;
 530         char buf[STRBUF_SIZEOF(u_quad_t) + 1];
 531         char ngroup[STRBUF_SIZEOF(uid_t) + 1];
 532         char nuser[STRBUF_SIZEOF(gid_t) + 1];
 533
 534         /*
 535          * If list is NULL there are two possibilities: that the parent
 536          * directory p has no children, or that fts_children() returned an
 537          * error.  We ignore the error case since it will be replicated
 538          * on the next call to fts_read() on the post-order visit to the
 539          * directory p, and will be signaled in traverse().
 540          */
 541         if (list == NULL)
 542                 return;
 543
 544         needstats = f_inode || f_longform || f_size;
 545         flen = 0;
 546         btotal = 0;
 547         initmax = getenv("LS_COLWIDTHS");
 548         /* Fields match -lios order.  New ones should be added at the end. */
 549         maxlattr = maxblock = maxinode = maxlen = maxnlink =
 550             maxuser = maxgroup = maxflags = maxsize = 0;
 551         if (initmax != NULL && *initmax != '\0') {
 552                 char *initmax2, *jinitmax;
 553                 int ninitmax;
 554
 555                 /* Fill-in "::" as "0:0:0" for the sake of scanf. */
 556                 jinitmax = initmax2 = malloc(strlen(initmax) * 2 + 2);
 557                 if (jinitmax == NULL)
 558                         err(1, "malloc");
 559                 if (*initmax == ':')
 560                         strcpy(initmax2, "0:"), initmax2 += 2;
 561                 else
 562                         *initmax2++ = *initmax, *initmax2 = '\0';
 563                 for (initmax++; *initmax != '\0'; initmax++) {
 564                         if (initmax[-1] == ':' && initmax[0] == ':') {
 565                                 *initmax2++ = '0';
 566                                 *initmax2++ = initmax[0];
 567                                 initmax2[1] = '\0';
 568                         } else {
 569                                 *initmax2++ = initmax[0];
 570                                 initmax2[1] = '\0';
 571                         }
 572                 }
 573                 if (initmax2[-1] == ':')
 574                         strcpy(initmax2, "0");
 575
 576                 ninitmax = sscanf(jinitmax,
 577                     " %lu : %qu : %lu : %i : %i : %i : %qu : %lu : %lu ",
 578                     &maxinode, &maxblock, &maxnlink, &maxuser,
 579                     &maxgroup, &maxflags, &maxsize, &maxlen, &maxlattr);
 580                 f_notabs = 1;
 581                 switch (ninitmax) {
 582                 case 0:
 583                         maxinode = 0;
 584                         /* FALLTHROUGH */
 585                 case 1:
 586                         maxblock = 0;
 587                         /* FALLTHROUGH */
 588                 case 2:
 589                         maxnlink = 0;
 590                         /* FALLTHROUGH */
 591                 case 3:
 592                         maxuser = 0;
 593                         /* FALLTHROUGH */
 594                 case 4:
 595                         maxgroup = 0;
 596                         /* FALLTHROUGH */
 597                 case 5:
 598                         maxflags = 0;
 599                         /* FALLTHROUGH */
 600                 case 6:
 601                         maxsize = 0;
 602                         /* FALLTHROUGH */
 603                 case 7:
 604                         maxlen = 0;
 605                         /* FALLTHROUGH */
 606                 case 8:
 607                         maxlattr = 0;
 608                         /* FALLTHROUGH */
 609 #ifdef COLORLS
 610                         if (!f_color)
 611 #endif
 612                                 f_notabs = 0;
 613                         /* FALLTHROUGH */
 614                 default:
 615                         break;
 616                 }
 617                 maxinode = makenines(maxinode);
 618                 maxblock = makenines(maxblock);
 619                 maxnlink = makenines(maxnlink);
 620                 maxsize = makenines(maxsize);
 621         }
 622 #ifndef __APPLE__
 623         if (f_lomac)
 624                 lomac_start();
 625 #endif /* __APPLE__ */
 626         bcfile = 0;
 627         flags = NULL;
 628         for (cur = list, entries = 0; cur; cur = cur->fts_link) {
 629                 if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) {
 630                         warnx("%s: %s",
 631                             cur->fts_name, strerror(cur->fts_errno));
 632                         cur->fts_number = NO_PRINT;
 633 #ifndef __APPLE__
 634                         /* Don't count this as an error.  This is for
 635                          * binary compatibility with Matlab installer script.
 636                          * 3252074
 637                          */
 638                         rval = 1;
 639 #endif
 640                         continue;
 641                 }
 642                 /*
 643                  * P is NULL if list is the argv list, to which different rules
 644                  * apply.
 645                  */
 646                 if (p == NULL) {
 647                         /* Directories will be displayed later. */
 648                         if (cur->fts_info == FTS_D && !f_listdir) {
 649                                 cur->fts_number = NO_PRINT;
 650                                 continue;
 651                         }
 652                 } else {
 653                         /* Only display dot file if -a/-A set. */
 654                         if (cur->fts_name[0] == '.' && !f_listdot) {
 655                                 cur->fts_number = NO_PRINT;
 656                                 continue;
 657                         }
 658                 }
 659                 if (cur->fts_namelen > maxlen)
 660                         maxlen = cur->fts_namelen;
 661                 if (f_octal || f_octal_escape) {
 662                         u_long t = len_octal(cur->fts_name, cur->fts_namelen);
 663
 664                         if (t > maxlen)
 665                                 maxlen = t;
 666                 }
 667                 if (needstats) {
 668                         sp = cur->fts_statp;
 669                         if (sp->st_blocks > maxblock)
 670                                 maxblock = sp->st_blocks;
 671                         if (sp->st_ino > maxinode)
 672                                 maxinode = sp->st_ino;
 673                         if (sp->st_nlink > maxnlink)
 674                                 maxnlink = sp->st_nlink;
 675                         if (sp->st_size > maxsize)
 676                                 maxsize = sp->st_size;
 677
 678                         btotal += sp->st_blocks;
 679                         if (f_longform) {
 680                                 if (f_numericonly) {
 681                                         (void)snprintf(nuser, sizeof(nuser),
 682                                             "%u", sp->st_uid);
 683                                         (void)snprintf(ngroup, sizeof(ngroup),
 684                                             "%u", sp->st_gid);
 685                                         user = nuser;
 686                                         group = ngroup;
 687                                 } else {
 688                                         user = user_from_uid(sp->st_uid, 0);
 689                                         group = group_from_gid(sp->st_gid, 0);
 690                                 }
 691                                 if ((ulen = strlen(user)) > maxuser)
 692                                         maxuser = ulen;
 693                                 if ((glen = strlen(group)) > maxgroup)
 694                                         maxgroup = glen;
 695                                 if (f_flags) {
 696                                         flags = fflagstostr(sp->st_flags);
 697                                         if (flags != NULL && *flags == '\0') {
 698                                                 free(flags);
 699                                                 flags = strdup("-");
 700                                         }
 701                                         if (flags == NULL)
 702                                                 err(1, "fflagstostr");
 703                                         flen = strlen(flags);
 704                                         if (flen > (size_t)maxflags)
 705                                                 maxflags = flen;
 706                                 } else
 707                                         flen = 0;
 708                                 lattr = NULL;
 709 #ifndef __APPLE__
 710                                 if (f_lomac) {
 711                                         lattr = get_lattr(cur);
 712                                         lattrlen = strlen(lattr);
 713                                         if (lattrlen > maxlattr)
 714                                                 maxlattr = lattrlen;
 715                                 } else
 716 #endif /* __APPLE__ */
 717                                         lattrlen = 0;
 718
 719                                 if ((np = malloc(sizeof(NAMES) + lattrlen +
 720                                     ulen + glen + flen + 4)) == NULL)
 721                                         err(1, "malloc");
 722
 723                                 np->user = &np->data[0];
 724                                 (void)strcpy(np->user, user);
 725                                 np->group = &np->data[ulen + 1];
 726                                 (void)strcpy(np->group, group);
 727
 728                                 if (S_ISCHR(sp->st_mode) ||
 729                                     S_ISBLK(sp->st_mode))
 730                                         bcfile = 1;
 731
 732                                 if (f_flags) {
 733                                         np->flags = &np->data[ulen + glen + 2];
 734                                         (void)strcpy(np->flags, flags);
 735                                         free(flags);
 736                                 }
 737 #ifndef __APPLE__
 738                                 if (f_lomac) {
 739                                         np->lattr = &np->data[ulen + glen + 2
 740                                             + (f_flags ? flen + 1 : 0)];
 741                                         (void)strcpy(np->lattr, lattr);
 742                                         free(lattr);
 743                                 }
 744 #endif /* __APPLE__ */
 745                                 cur->fts_pointer = np;
 746                         }
 747                 }
 748                 ++entries;
 749         }
 750
 751         if (!entries)
 752                 return;
 753
 754         d.list = list;
 755         d.entries = entries;
 756         d.maxlen = maxlen;
 757         if (needstats) {
 758                 d.bcfile = bcfile;
 759                 d.btotal = btotal;
 760                 (void)snprintf(buf, sizeof(buf), "%qu", (u_int64_t)maxblock);
 761                 d.s_block = strlen(buf);
 762                 d.s_flags = maxflags;
 763                 d.s_lattr = maxlattr;
 764                 d.s_group = maxgroup;
 765                 (void)snprintf(buf, sizeof(buf), "%lu", maxinode);
 766                 d.s_inode = strlen(buf);
 767                 (void)snprintf(buf, sizeof(buf), "%lu", maxnlink);
 768                 d.s_nlink = strlen(buf);
 769                 (void)snprintf(buf, sizeof(buf), "%qu", (u_int64_t)maxsize);
 770                 d.s_size = strlen(buf);
 771                 d.s_user = maxuser;
 772         }
 773         printfcn(&d);
 774         output = 1;
 775
 776         if (f_longform)
 777                 for (cur = list; cur; cur = cur->fts_link)
 778                         free(cur->fts_pointer);
 779 #ifndef __APPLE__
 780         if (f_lomac)
 781                 lomac_stop();
 782 #endif /* __APPLE__ */
 783 }
 784
 785 /*
 786  * Ordering for mastercmp:
 787  * If ordering the argv (fts_level = FTS_ROOTLEVEL) return non-directories
 788  * as larger than directories.  Within either group, use the sort function.
 789  * All other levels use the sort function.  Error entries remain unsorted.
 790  */
 791 static int
 792 mastercmp(const FTSENT * const *a, const FTSENT * const *b)
 793 {
 794         int a_info, b_info;
 795
 796         a_info = (*a)->fts_info;
 797         if (a_info == FTS_ERR)
 798                 return (0);
 799         b_info = (*b)->fts_info;
 800         if (b_info == FTS_ERR)
 801                 return (0);
 802
 803         if (a_info == FTS_NS || b_info == FTS_NS)
 804                 return (namecmp(*a, *b));
 805
 806         if (a_info != b_info &&
 807             (*a)->fts_level == FTS_ROOTLEVEL && !f_listdir) {
 808                 if (a_info == FTS_D)
 809                         return (1);
 810                 if (b_info == FTS_D)
 811                         return (-1);
 812         }
 813         return (sortfcn(*a, *b));
 814 }
 815
 816 /*
 817  * Makenines() returns (10**n)-1.  This is useful for converting a width
 818  * into a number that wide in decimal.
 819  */
 820 static u_quad_t
 821 makenines(u_long n)
 822 {
 823         u_long i;
 824         u_quad_t reg;
 825
 826         reg = 1;
 827         /* Use a loop instead of pow(), since all values of n are small. */
 828         for (i = 0; i < n; i++)
 829                 reg *= 10;
 830         reg--;
 831
 832         return reg;
 833 }