bin/ls/ls.c

   1 /*      $NetBSD: ls.c,v 1.76 2017/02/06 21:06:04 rin Exp $      */
   2
   3 /*
   4  * Copyright (c) 1989, 1993, 1994
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * This code is derived from software contributed to Berkeley by
   8  * Michael Fischbein.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. Neither the name of the University nor the names of its contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34
  35 #include <sys/cdefs.h>
  36 #ifndef lint
  37 __COPYRIGHT("@(#) Copyright (c) 1989, 1993, 1994\
  38  The Regents of the University of California.  All rights reserved.");
  39 #endif /* not lint */
  40
  41 #ifndef lint
  42 #if 0
  43 static char sccsid[] = "@(#)ls.c        8.7 (Berkeley) 8/5/94";
  44 #else
  45 __RCSID("$NetBSD: ls.c,v 1.76 2017/02/06 21:06:04 rin Exp $");
  46 #endif
  47 #endif /* not lint */
  48
  49 #include <sys/param.h>
  50 #include <sys/types.h>
  51 #include <sys/stat.h>
  52 #include <sys/ioctl.h>
  53
  54 #include <dirent.h>
  55 #include <err.h>
  56 #include <errno.h>
  57 #include <fts.h>
  58 #include <locale.h>
  59 #include <stdio.h>
  60 #include <stdlib.h>
  61 #include <string.h>
  62 #include <unistd.h>
  63 #include <termios.h>
  64 #include <pwd.h>
  65 #include <grp.h>
  66 #include <util.h>
  67
  68 #include "ls.h"
  69 #include "extern.h"
  70
  71 static void      display(FTSENT *, FTSENT *);
  72 static int       mastercmp(const FTSENT **, const FTSENT **);
  73 static void      traverse(int, char **, int);
  74
  75 static void (*printfcn)(DISPLAY *);
  76 static int (*sortfcn)(const FTSENT *, const FTSENT *);
  77
  78 #define BY_NAME 0
  79 #define BY_SIZE 1
  80 #define BY_TIME 2
  81
  82 long blocksize;                 /* block size units */
  83 int termwidth = 80;             /* default terminal width */
  84 int sortkey = BY_NAME;
  85 int rval = EXIT_SUCCESS;        /* exit value - set if error encountered */
  86
  87 /* flags */
  88 int f_accesstime;               /* use time of last access */
  89 int f_column;                   /* columnated format */
  90 int f_columnacross;             /* columnated format, sorted across */
  91 int f_flags;                    /* show flags associated with a file */
  92 int f_grouponly;                /* long listing without owner */
  93 int f_humanize;                 /* humanize the size field */
  94 int f_commas;                   /* separate size field with comma */
  95 int f_inode;                    /* print inode */
  96 int f_listdir;                  /* list actual directory, not contents */
  97 int f_listdot;                  /* list files beginning with . */
  98 int f_longform;                 /* long listing format */
  99 int f_nonprint;                 /* show unprintables as ? */
 100 int f_nosort;                   /* don't sort output */
 101 int f_numericonly;              /* don't convert uid/gid to name */
 102 int f_octal;                    /* print octal escapes for nongraphic characters */
 103 int f_octal_escape;             /* like f_octal but use C escapes if possible */
 104 int f_recursive;                /* ls subdirectories also */
 105 int f_reversesort;              /* reverse whatever sort is used */
 106 int f_sectime;                  /* print the real time for all files */
 107 int f_singlecol;                /* use single column output */
 108 int f_size;                     /* list size in short listing */
 109 int f_statustime;               /* use time of last mode change */
 110 int f_stream;                   /* stream format */
 111 int f_type;                     /* add type character for non-regular files */
 112 int f_typedir;                  /* add type character for directories */
 113 int f_whiteout;                 /* show whiteout entries */
 114 int f_fullpath;                 /* print full pathname, not filename */
 115 int f_leafonly;                 /* when recursing, print leaf names only */
 116
 117 __dead static void
 118 usage(void)
 119 {
 120
 121         (void)fprintf(stderr,
 122             "usage: %s [-1AaBbCcdFfghikLlMmnOoPpqRrSsTtuWwXx] [file ...]\n",
 123             getprogname());
 124         exit(EXIT_FAILURE);
 125         /* NOTREACHED */
 126 }
 127
 128 int
 129 ls_main(int argc, char *argv[])
 130 {
 131         static char dot[] = ".", *dotav[] = { dot, NULL };
 132         struct winsize win;
 133         int ch, fts_options;
 134         int kflag = 0;
 135         const char *p;
 136
 137         setprogname(argv[0]);
 138         (void)setlocale(LC_ALL, "");
 139
 140         /* Terminal defaults to -Cq, non-terminal defaults to -1. */
 141         if (isatty(STDOUT_FILENO)) {
 142                 if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) == 0 &&
 143                     win.ws_col > 0)
 144                         termwidth = win.ws_col;
 145                 f_column = f_nonprint = 1;
 146         } else
 147                 f_singlecol = 1;
 148
 149         /* Root is -A automatically. */
 150         if (!getuid())
 151                 f_listdot = 1;
 152
 153         fts_options = FTS_PHYSICAL;
 154         while ((ch = getopt(argc, argv, "1AaBbCcdFfghikLlMmnOoPpqRrSsTtuWwXx"))
 155             != -1) {
 156                 switch (ch) {
 157                 /*
 158                  * The -1, -C, -l, -m and -x options all override each other so
 159                  * shell aliasing works correctly.
 160                  */
 161                 case '1':
 162                         f_singlecol = 1;
 163                         f_column = f_columnacross = f_longform = f_stream = 0;
 164                         break;
 165                 case 'C':
 166                         f_column = 1;
 167                         f_columnacross = f_longform = f_singlecol = f_stream =
 168                             0;
 169                         break;
 170                 case 'g':
 171                         if (f_grouponly != -1)
 172                                 f_grouponly = 1;
 173                         f_longform = 1;
 174                         f_column = f_columnacross = f_singlecol = f_stream = 0;
 175                         break;
 176                 case 'l':
 177                         f_longform = 1;
 178                         f_column = f_columnacross = f_singlecol = f_stream = 0;
 179                         /* Never let -g take precedence over -l. */
 180                         f_grouponly = -1;
 181                         break;
 182                 case 'm':
 183                         f_stream = 1;
 184                         f_column = f_columnacross = f_longform = f_singlecol =
 185                             0;
 186                         break;
 187                 case 'x':
 188                         f_columnacross = 1;
 189                         f_column = f_longform = f_singlecol = f_stream = 0;
 190                         break;
 191                 /* The -c and -u options override each other. */
 192                 case 'c':
 193                         f_statustime = 1;
 194                         f_accesstime = 0;
 195                         break;
 196                 case 'u':
 197                         f_accesstime = 1;
 198                         f_statustime = 0;
 199                         break;
 200                 case 'F':
 201                         f_type = 1;
 202                         break;
 203                 case 'L':
 204                         fts_options &= ~FTS_PHYSICAL;
 205                         fts_options |= FTS_LOGICAL;
 206                         break;
 207                 case 'R':
 208                         f_recursive = 1;
 209                         break;
 210                 case 'f':
 211                         f_nosort = 1;
 212                         /* FALLTHROUGH */
 213                 case 'a':
 214                         fts_options |= FTS_SEEDOT;
 215                         /* FALLTHROUGH */
 216                 case 'A':
 217                         f_listdot = 1;
 218                         break;
 219                 /* The -B option turns off the -b, -q and -w options. */
 220                 case 'B':
 221                         f_nonprint = 0;
 222                         f_octal = 1;
 223                         f_octal_escape = 0;
 224                         break;
 225                 /* The -b option turns off the -B, -q and -w options. */
 226                 case 'b':
 227                         f_nonprint = 0;
 228                         f_octal = 0;
 229                         f_octal_escape = 1;
 230                         break;
 231                 /* The -d option turns off the -R option. */
 232                 case 'd':
 233                         f_listdir = 1;
 234                         f_recursive = 0;
 235                         break;
 236                 case 'i':
 237                         f_inode = 1;
 238                         break;
 239                 case 'k':
 240                         blocksize = 1024;
 241                         kflag = 1;
 242                         f_humanize = 0;
 243                         break;
 244                 /* The -h option forces all sizes to be measured in bytes. */
 245                 case 'h':
 246                         f_humanize = 1;
 247                         kflag = 0;
 248                         f_commas = 0;
 249                         break;
 250                 case 'M':
 251                         f_humanize = 0;
 252                         f_commas = 1;
 253                         break;
 254                 case 'n':
 255                         f_numericonly = 1;
 256                         f_longform = 1;
 257                         f_column = f_columnacross = f_singlecol = f_stream = 0;
 258                         break;
 259                 case 'O':
 260                         f_leafonly = 1;
 261                         break;
 262                 case 'o':
 263                         f_flags = 1;
 264                         break;
 265                 case 'P':
 266                         f_fullpath = 1;
 267                         break;
 268                 case 'p':
 269                         f_typedir = 1;
 270                         break;
 271                 /* The -q option turns off the -B, -b and -w options. */
 272                 case 'q':
 273                         f_nonprint = 1;
 274                         f_octal = 0;
 275                         f_octal_escape = 0;
 276                         break;
 277                 case 'r':
 278                         f_reversesort = 1;
 279                         break;
 280                 case 'S':
 281                         sortkey = BY_SIZE;
 282                         break;
 283                 case 's':
 284                         f_size = 1;
 285                         break;
 286                 case 'T':
 287                         f_sectime = 1;
 288                         break;
 289                 case 't':
 290                         sortkey = BY_TIME;
 291                         break;
 292                 case 'W':
 293                         f_whiteout = 1;
 294                         break;
 295                 /* The -w option turns off the -B, -b and -q options. */
 296                 case 'w':
 297                         f_nonprint = 0;
 298                         f_octal = 0;
 299                         f_octal_escape = 0;
 300                         break;
 301                 case 'X':
 302                         fts_options |= FTS_XDEV;
 303                         break;
 304                 default:
 305                 case '?':
 306                         usage();
 307                 }
 308         }
 309         argc -= optind;
 310         argv += optind;
 311
 312         if (f_column || f_columnacross || f_stream) {
 313                 if ((p = getenv("COLUMNS")) != NULL)
 314                         termwidth = atoi(p);
 315         }
 316
 317         /*
 318          * If both -g and -l options, let -l take precedence.
 319          */
 320         if (f_grouponly == -1)
 321                 f_grouponly = 0;
 322
 323         /*
 324          * If not -F, -i, -l, -p, -S, -s or -t options, don't require stat
 325          * information.
 326          */
 327         if (!f_inode && !f_longform && !f_size && !f_type && !f_typedir &&
 328             sortkey == BY_NAME)
 329                 fts_options |= FTS_NOSTAT;
 330
 331         /*
 332          * If not -F, -d or -l options, follow any symbolic links listed on
 333          * the command line.
 334          */
 335         if (!f_longform && !f_listdir && !f_type)
 336                 fts_options |= FTS_COMFOLLOW;
 337
 338         /*
 339          * If -W, show whiteout entries
 340          */
 341 #ifdef FTS_WHITEOUT
 342         if (f_whiteout)
 343                 fts_options |= FTS_WHITEOUT;
 344 #endif
 345
 346         /* If -i, -l, or -s, figure out block size. */
 347         if (f_inode || f_longform || f_size) {
 348                 if (!kflag)
 349                         (void)getbsize(NULL, &blocksize);
 350                 blocksize /= 512;
 351         }
 352
 353         /* Select a sort function. */
 354         if (f_reversesort) {
 355                 switch (sortkey) {
 356                 case BY_NAME:
 357                         sortfcn = revnamecmp;
 358                         break;
 359                 case BY_SIZE:
 360                         sortfcn = revsizecmp;
 361                         break;
 362                 case BY_TIME:
 363                         if (f_accesstime)
 364                                 sortfcn = revacccmp;
 365                         else if (f_statustime)
 366                                 sortfcn = revstatcmp;
 367                         else /* Use modification time. */
 368                                 sortfcn = revmodcmp;
 369                         break;
 370                 }
 371         } else {
 372                 switch (sortkey) {
 373                 case BY_NAME:
 374                         sortfcn = namecmp;
 375                         break;
 376                 case BY_SIZE:
 377                         sortfcn = sizecmp;
 378                         break;
 379                 case BY_TIME:
 380                         if (f_accesstime)
 381                                 sortfcn = acccmp;
 382                         else if (f_statustime)
 383                                 sortfcn = statcmp;
 384                         else /* Use modification time. */
 385                                 sortfcn = modcmp;
 386                         break;
 387                 }
 388         }
 389
 390         /* Select a print function. */
 391         if (f_singlecol)
 392                 printfcn = printscol;
 393         else if (f_columnacross)
 394                 printfcn = printacol;
 395         else if (f_longform)
 396                 printfcn = printlong;
 397         else if (f_stream)
 398                 printfcn = printstream;
 399         else
 400                 printfcn = printcol;
 401
 402         if (argc)
 403                 traverse(argc, argv, fts_options);
 404         else
 405                 traverse(1, dotav, fts_options);
 406         return rval;
 407         /* NOTREACHED */
 408 }
 409
 410 static int output;                      /* If anything output. */
 411
 412 /*
 413  * Traverse() walks the logical directory structure specified by the argv list
 414  * in the order specified by the mastercmp() comparison function.  During the
 415  * traversal it passes linked lists of structures to display() which represent
 416  * a superset (may be exact set) of the files to be displayed.
 417  */
 418 static void
 419 traverse(int argc, char *argv[], int options)
 420 {
 421         FTS *ftsp;
 422         FTSENT *p, *chp;
 423         int ch_options, error;
 424
 425         if ((ftsp =
 426             fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL)
 427                 err(EXIT_FAILURE, NULL);
 428
 429         display(NULL, fts_children(ftsp, 0));
 430         if (f_listdir) {
 431                 (void)fts_close(ftsp);
 432                 return;
 433         }
 434
 435         /*
 436          * If not recursing down this tree and don't need stat info, just get
 437          * the names.
 438          */
 439         ch_options = !f_recursive && options & FTS_NOSTAT ? FTS_NAMEONLY : 0;
 440
 441         while ((p = fts_read(ftsp)) != NULL)
 442                 switch (p->fts_info) {
 443                 case FTS_DC:
 444                         warnx("%s: directory causes a cycle", p->fts_name);
 445                         break;
 446                 case FTS_DNR:
 447                 case FTS_ERR:
 448                         warnx("%s: %s", p->fts_name, strerror(p->fts_errno));
 449                         rval = EXIT_FAILURE;
 450                         break;
 451                 case FTS_D:
 452                         if (p->fts_level != FTS_ROOTLEVEL &&
 453                             p->fts_name[0] == '.' && !f_listdot)
 454                                 break;
 455
 456                         /*
 457                          * If already output something, put out a newline as
 458                          * a separator.  If multiple arguments, precede each
 459                          * directory with its name.
 460                          */
 461                         if (!f_leafonly) {
 462                                 if (output)
 463                                         (void)printf("\n%s:\n", p->fts_path);
 464                                 else if (argc > 1) {
 465                                         (void)printf("%s:\n", p->fts_path);
 466                                         output = 1;
 467                                 }
 468                         }
 469
 470                         chp = fts_children(ftsp, ch_options);
 471                         display(p, chp);
 472
 473                         if (!f_recursive && chp != NULL)
 474                                 (void)fts_set(ftsp, p, FTS_SKIP);
 475                         break;
 476                 }
 477         error = errno;
 478         (void)fts_close(ftsp);
 479         errno = error;
 480         if (errno)
 481                 err(EXIT_FAILURE, "fts_read");
 482 }
 483
 484 /*
 485  * Display() takes a linked list of FTSENT structures and passes the list
 486  * along with any other necessary information to the print function.  P
 487  * points to the parent directory of the display list.
 488  */
 489 static void
 490 display(FTSENT *p, FTSENT *list)
 491 {
 492         struct stat *sp;
 493         DISPLAY d;
 494         FTSENT *cur;
 495         NAMES *np;
 496         u_int64_t btotal, stotal;
 497         off_t maxsize;
 498         blkcnt_t maxblock;
 499         ino_t maxinode;
 500         int maxmajor, maxminor;
 501         uint32_t maxnlink;
 502         int bcfile, entries, flen, glen, ulen, maxflags, maxgroup;
 503         unsigned int maxlen;
 504         int maxuser, needstats;
 505         const char *user, *group;
 506         char buf[21];           /* 64 bits == 20 digits, +1 for NUL */
 507         char nuser[12], ngroup[12];
 508         char *flags = NULL;
 509
 510         /*
 511          * If list is NULL there are two possibilities: that the parent
 512          * directory p has no children, or that fts_children() returned an
 513          * error.  We ignore the error case since it will be replicated
 514          * on the next call to fts_read() on the post-order visit to the
 515          * directory p, and will be signalled in traverse().
 516          */
 517         if (list == NULL)
 518                 return;
 519
 520         needstats = f_inode || f_longform || f_size;
 521         flen = 0;
 522         maxinode = maxnlink = 0;
 523         bcfile = 0;
 524         maxuser = maxgroup = maxflags = maxlen = 0;
 525         btotal = stotal = maxblock = maxsize = 0;
 526         maxmajor = maxminor = 0;
 527         for (cur = list, entries = 0; cur; cur = cur->fts_link) {
 528                 if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) {
 529                         warnx("%s: %s",
 530                             cur->fts_name, strerror(cur->fts_errno));
 531                         cur->fts_number = NO_PRINT;
 532                         rval = EXIT_FAILURE;
 533                         continue;
 534                 }
 535
 536                 /*
 537                  * P is NULL if list is the argv list, to which different rules
 538                  * apply.
 539                  */
 540                 if (p == NULL) {
 541                         /* Directories will be displayed later. */
 542                         if (cur->fts_info == FTS_D && !f_listdir) {
 543                                 cur->fts_number = NO_PRINT;
 544                                 continue;
 545                         }
 546                 } else {
 547                         /* Only display dot file if -a/-A set. */
 548                         if (cur->fts_name[0] == '.' && !f_listdot) {
 549                                 cur->fts_number = NO_PRINT;
 550                                 continue;
 551                         }
 552                 }
 553                 if (cur->fts_namelen > maxlen)
 554                         maxlen = cur->fts_namelen;
 555                 if (needstats) {
 556                         sp = cur->fts_statp;
 557                         if (sp->st_blocks > maxblock)
 558                                 maxblock = sp->st_blocks;
 559                         if (sp->st_ino > maxinode)
 560                                 maxinode = sp->st_ino;
 561                         if (sp->st_nlink > maxnlink)
 562                                 maxnlink = sp->st_nlink;
 563                         if (sp->st_size > maxsize)
 564                                 maxsize = sp->st_size;
 565                         if (S_ISCHR(sp->st_mode) || S_ISBLK(sp->st_mode)) {
 566                                 bcfile = 1;
 567                                 if (major(sp->st_rdev) > maxmajor)
 568                                         maxmajor = major(sp->st_rdev);
 569                                 if (minor(sp->st_rdev) > maxminor)
 570                                         maxminor = minor(sp->st_rdev);
 571                         }
 572
 573                         btotal += sp->st_blocks;
 574                         stotal += sp->st_size;
 575                         if (f_longform) {
 576                                 if (f_numericonly ||
 577                                     (user = user_from_uid(sp->st_uid, 0)) ==
 578                                     NULL) {
 579                                         (void)snprintf(nuser, sizeof(nuser),
 580                                             "%u", sp->st_uid);
 581                                         user = nuser;
 582                                 }
 583                                 if (f_numericonly ||
 584                                     (group = group_from_gid(sp->st_gid, 0)) ==
 585                                     NULL) {
 586                                         (void)snprintf(ngroup, sizeof(ngroup),
 587                                             "%u", sp->st_gid);
 588                                         group = ngroup;
 589                                 }
 590                                 if ((ulen = strlen(user)) > maxuser)
 591                                         maxuser = ulen;
 592                                 if ((glen = strlen(group)) > maxgroup)
 593                                         maxgroup = glen;
 594                                 if (f_flags) {
 595                                         flags =
 596                                             flags_to_string((u_long)sp->st_flags, "-");
 597                                         if ((flen = strlen(flags)) > maxflags)
 598                                                 maxflags = flen;
 599                                 } else
 600                                         flen = 0;
 601
 602                                 if ((np = malloc(sizeof(NAMES) +
 603                                     ulen + glen + flen + 2)) == NULL)
 604                                         err(EXIT_FAILURE, NULL);
 605
 606                                 np->user = &np->data[0];
 607                                 (void)strcpy(np->user, user);
 608                                 np->group = &np->data[ulen + 1];
 609                                 (void)strcpy(np->group, group);
 610
 611                                 if (f_flags) {
 612                                         np->flags = &np->data[ulen + glen + 2];
 613                                         (void)strcpy(np->flags, flags);
 614                                         free(flags);
 615                                 }
 616                                 cur->fts_pointer = np;
 617                         }
 618                 }
 619                 ++entries;
 620         }
 621
 622         if (!entries)
 623                 return;
 624
 625         d.list = list;
 626         d.entries = entries;
 627         d.maxlen = maxlen;
 628         if (needstats) {
 629                 d.btotal = btotal;
 630                 d.stotal = stotal;
 631                 if (f_humanize) {
 632                         d.s_block = 4; /* min buf length for humanize_number */
 633                 } else {
 634                         (void)snprintf(buf, sizeof(buf), "%lld",
 635                             (long long)howmany(maxblock, blocksize));
 636                         d.s_block = strlen(buf);
 637                         if (f_commas) /* allow for commas before every third digit */
 638                                 d.s_block += (d.s_block - 1) / 3;
 639                 }
 640                 d.s_flags = maxflags;
 641                 d.s_group = maxgroup;
 642                 (void)snprintf(buf, sizeof(buf), "%llu",
 643                     (unsigned long long)maxinode);
 644                 d.s_inode = strlen(buf);
 645                 (void)snprintf(buf, sizeof(buf), "%u", maxnlink);
 646                 d.s_nlink = strlen(buf);
 647                 if (f_humanize) {
 648                         d.s_size = 4; /* min buf length for humanize_number */
 649                 } else {
 650                         (void)snprintf(buf, sizeof(buf), "%lld",
 651                             (long long)maxsize);
 652                         d.s_size = strlen(buf);
 653                         if (f_commas) /* allow for commas before every third digit */
 654                                 d.s_size += (d.s_size - 1) / 3;
 655                 }
 656                 d.s_user = maxuser;
 657                 if (bcfile) {
 658                         (void)snprintf(buf, sizeof(buf), "%d", maxmajor);
 659                         d.s_major = strlen(buf);
 660                         (void)snprintf(buf, sizeof(buf), "%d", maxminor);
 661                         d.s_minor = strlen(buf);
 662                         if (d.s_major + d.s_minor + 2 > d.s_size)
 663                                 d.s_size = d.s_major + d.s_minor + 2;
 664                         else if (d.s_size - d.s_minor - 2 > d.s_major)
 665                                 d.s_major = d.s_size - d.s_minor - 2;
 666                 } else {
 667                         d.s_major = 0;
 668                         d.s_minor = 0;
 669                 }
 670         }
 671
 672         printfcn(&d);
 673         output = 1;
 674
 675         if (f_longform)
 676                 for (cur = list; cur; cur = cur->fts_link)
 677                         free(cur->fts_pointer);
 678 }
 679
 680 /*
 681  * Ordering for mastercmp:
 682  * If ordering the argv (fts_level = FTS_ROOTLEVEL) return non-directories
 683  * as larger than directories.  Within either group, use the sort function.
 684  * All other levels use the sort function.  Error entries remain unsorted.
 685  */
 686 static int
 687 mastercmp(const FTSENT **a, const FTSENT **b)
 688 {
 689         int a_info, b_info;
 690
 691         a_info = (*a)->fts_info;
 692         if (a_info == FTS_ERR)
 693                 return (0);
 694         b_info = (*b)->fts_info;
 695         if (b_info == FTS_ERR)
 696                 return (0);
 697
 698         if (a_info == FTS_NS || b_info == FTS_NS) {
 699                 if (b_info != FTS_NS)
 700                         return (1);
 701                 else if (a_info != FTS_NS)
 702                         return (-1);
 703                 else
 704                         return (namecmp(*a, *b));
 705         }
 706
 707         if (a_info != b_info && !f_listdir &&
 708             (*a)->fts_level == FTS_ROOTLEVEL) {
 709                 if (a_info == FTS_D)
 710                         return (1);
 711                 else if (b_info == FTS_D)
 712                         return (-1);
 713         }
 714         return (sortfcn(*a, *b));
 715 }