bin/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. 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  * @(#) Copyright (c) 1989, 1993, 1994 The Regents of the University of California.  All rights reserved.
  33  * @(#)ls.c     8.5 (Berkeley) 4/2/94
  34  * $FreeBSD: src/bin/ls/ls.c,v 1.78 2004/06/08 09:30:10 das Exp $
  35  */
  36
  37 #include <sys/types.h>
  38 #include <sys/stat.h>
  39 #include <sys/ioctl.h>
  40
  41 #include <dirent.h>
  42 #include <err.h>
  43 #include <errno.h>
  44 #include <fts.h>
  45 #include <grp.h>
  46 #include <inttypes.h>
  47 #include <limits.h>
  48 #include <locale.h>
  49 #include <pwd.h>
  50 #include <stdio.h>
  51 #include <stdlib.h>
  52 #include <string.h>
  53 #include <unistd.h>
  54 #ifdef COLORLS
  55 #include <termcap.h>
  56 #include <signal.h>
  57 #endif
  58
  59 #include "ls.h"
  60 #include "extern.h"
  61
  62 /*
  63  * Upward approximation of the maximum number of characters needed to
  64  * represent a value of integral type t as a string, excluding the
  65  * NUL terminator, with provision for a sign.
  66  */
  67 #define STRBUF_SIZEOF(t)        (1 + CHAR_BIT * sizeof(t) / 3 + 1)
  68
  69 /*
  70  * MAKENINES(n) turns n into (10**n)-1.  This is useful for converting a width
  71  * into a number that wide in decimal.
  72  * XXX: Overflows are not considered.
  73  */
  74 #define MAKENINES(n)                                                    \
  75         do {                                                            \
  76                 intmax_t i;                                             \
  77                                                                         \
  78                 /* Use a loop as all values of n are small. */          \
  79                 for (i = 1; n > 0; i *= 10)                             \
  80                         n--;                                            \
  81                 n = i - 1;                                              \
  82         } while(0)
  83
  84 static void      display(const FTSENT *, FTSENT *);
  85 static int       mastercmp(const FTSENT * const *, const FTSENT * const *);
  86 static void      traverse(int, char **, int);
  87
  88 static void (*printfcn)(const DISPLAY *);
  89 static int (*sortfcn)(const FTSENT *, const FTSENT *);
  90
  91 long blocksize;                 /* block size units */
  92 int termwidth = 80;             /* default terminal width */
  93
  94 /* flags */
  95        int f_accesstime;        /* use time of last access */
  96        int f_flags;             /* show flags associated with a file */
  97        int f_fsmid;             /* show FSMID associated with a file */
  98        int f_humanval;          /* show human-readable file sizes */
  99        int f_inode;             /* print inode */
 100 static int f_kblocks;           /* print size in kilobytes */
 101 static int f_listdir;           /* list actual directory, not contents */
 102 static int f_listdot;           /* list files beginning with . */
 103        int f_longform;          /* long listing format */
 104        int f_nanotime;          /* include nanotime in long 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_sizesort;          /* Sort by size */
 118        int f_sortacross;        /* sort across rows, not down columns */
 119        int f_statustime;        /* use time of last mode change */
 120 static int f_stream;            /* stream the output, separate with commas */
 121        const char *f_timeformat;        /* user-specified time format */
 122 static int f_timesort;          /* sort by time vice name */
 123        int f_type;              /* add type character for non-regular files */
 124 static int f_whiteout;          /* show whiteout entries */
 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         const char nanotime_format[] = "%Y-%m-%d %H:%M:%S";
 145 #ifdef COLORLS
 146         char termcapbuf[1024];  /* termcap definition buffer */
 147         char tcapbuf[512];      /* capability buffer */
 148         char *bp = tcapbuf;
 149 #endif
 150
 151         setlocale(LC_ALL, "");
 152
 153         /* Terminal defaults to -Cq, non-terminal defaults to -1. */
 154         if (isatty(STDOUT_FILENO)) {
 155                 termwidth = 80;
 156                 if ((p = getenv("COLUMNS")) != NULL && *p != '\0')
 157                         termwidth = atoi(p);
 158                 else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) != -1 &&
 159                     win.ws_col > 0)
 160                         termwidth = win.ws_col;
 161                 f_nonprint = 1;
 162         } else {
 163                 f_singlecol = 1;
 164                 /* retrieve environment variable, in case of explicit -C */
 165                 p = getenv("COLUMNS");
 166                 if (p)
 167                         termwidth = atoi(p);
 168         }
 169
 170         /*
 171          * Root is -A automatically.  Turn off if -I specified.
 172          */
 173         if (getuid() == 0)
 174                 f_listdot = 1;
 175
 176         fts_options = FTS_PHYSICAL;
 177         while ((ch = getopt(argc, argv,
 178             "1ABCD:FGHILPRSTW_abcdfghiklmnopqrstuwxy")) != -1) {
 179                 switch (ch) {
 180                 /*
 181                  * The -1, -C, -x and -l options all override each other so
 182                  * shell aliasing works right.
 183                  */
 184                 case '1':
 185                         f_singlecol = 1;
 186                         f_longform = 0;
 187                         f_stream = 0;
 188                         break;
 189                 case 'B':
 190                         f_nonprint = 0;
 191                         f_octal = 1;
 192                         f_octal_escape = 0;
 193                         break;
 194                 case 'C':
 195                         f_sortacross = f_longform = f_singlecol = 0;
 196                         break;
 197                 case 'l':
 198                         f_longform = 1;
 199                         f_singlecol = 0;
 200                         f_stream = 0;
 201                         break;
 202                 case 'x':
 203                         f_sortacross = 1;
 204                         f_longform = 0;
 205                         f_singlecol = 0;
 206                         break;
 207                 case 'y':
 208 #ifdef _ST_FSMID_PRESENT_
 209                         f_fsmid = 1;
 210 #endif
 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 'D':
 222                         f_timeformat = optarg;
 223                         break;
 224                 case 'F':
 225                         f_type = 1;
 226                         f_slash = 0;
 227                         break;
 228                 case 'H':
 229                         fts_options |= FTS_COMFOLLOW;
 230                         break;
 231                 case 'I':
 232                         f_listdot = 0;
 233                         break;
 234                 case 'G':
 235                         if (setenv("CLICOLOR", "", 1) != 0)
 236                                 warn("setenv: cannot set CLICOLOR");
 237                         break;
 238                 case 'L':
 239                         fts_options &= ~FTS_PHYSICAL;
 240                         fts_options |= FTS_LOGICAL;
 241                         break;
 242                 case 'P':
 243                         fts_options &= ~FTS_COMFOLLOW;
 244                         fts_options &= ~FTS_LOGICAL;
 245                         fts_options |= FTS_PHYSICAL;
 246                         break;
 247                 case 'R':
 248                         f_recursive = 1;
 249                         break;
 250                 /* The -t and -S options override each other. */
 251                 case 'S':
 252                         f_sizesort = 1;
 253                         f_timesort = 0;
 254                         break;
 255                 case 't':
 256                         f_timesort = 1;
 257                         f_sizesort = 0;
 258                         break;
 259                 case 'f':
 260                         f_nosort = 1;
 261                         /* FALLTHROUGH */
 262                 case 'a':
 263                         fts_options |= FTS_SEEDOT;
 264                         /* FALLTHROUGH */
 265                 case 'A':
 266                         f_listdot = 1;
 267                         break;
 268                 /* The -d option turns off the -R option. */
 269                 case 'd':
 270                         f_listdir = 1;
 271                         f_recursive = 0;
 272                         break;
 273                 case 'g':       /* Compatibility with 4.3BSD. */
 274                         break;
 275                 case 'h':
 276                         f_humanval = 1;
 277                         break;
 278                 case 'i':
 279                         f_inode = 1;
 280                         break;
 281                 case 'k':
 282                         f_humanval = 0;
 283                         f_kblocks = 1;
 284                         break;
 285                 case 'm':
 286                         f_stream = 1;
 287                         f_singlecol = 0;
 288                         f_longform = 0;
 289                         break;
 290                 case 'n':
 291                         f_numericonly = 1;
 292                         break;
 293                 case 'o':
 294                         f_flags = 1;
 295                         break;
 296                 case 'p':
 297                         f_slash = 1;
 298                         f_type = 1;
 299                         break;
 300                 case 'q':
 301                         f_nonprint = 1;
 302                         f_octal = 0;
 303                         f_octal_escape = 0;
 304                         break;
 305                 case 'r':
 306                         f_reversesort = 1;
 307                         break;
 308                 case 's':
 309                         f_size = 1;
 310                         break;
 311                 case 'T':
 312                         f_sectime = 1;
 313                         break;
 314                 case 'W':
 315                         f_whiteout = 1;
 316                         break;
 317                 case 'b':
 318                         f_nonprint = 0;
 319                         f_octal = 0;
 320                         f_octal_escape = 1;
 321                         break;
 322                 case 'w':
 323                         f_nonprint = 0;
 324                         f_octal = 0;
 325                         f_octal_escape = 0;
 326                         break;
 327                 case '_':
 328                         f_nanotime = 1;
 329                         f_timeformat = nanotime_format;
 330                         break;
 331                 default:
 332                 case '?':
 333                         usage();
 334                 }
 335         }
 336         argc -= optind;
 337         argv += optind;
 338
 339         /* Enabling of colours is conditional on the environment. */
 340         if (getenv("CLICOLOR") &&
 341             (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE")))
 342 #ifdef COLORLS
 343                 if (tgetent(termcapbuf, getenv("TERM")) == 1) {
 344                         ansi_fgcol = tgetstr("AF", &bp);
 345                         ansi_bgcol = tgetstr("AB", &bp);
 346                         attrs_off = tgetstr("me", &bp);
 347                         enter_bold = tgetstr("md", &bp);
 348
 349                         /* To switch colours off use 'op' if
 350                          * available, otherwise use 'oc', or
 351                          * don't do colours at all. */
 352                         ansi_coloff = tgetstr("op", &bp);
 353                         if (!ansi_coloff)
 354                                 ansi_coloff = tgetstr("oc", &bp);
 355                         if (ansi_fgcol && ansi_bgcol && ansi_coloff)
 356                                 f_color = 1;
 357                 }
 358 #else
 359                 fprintf(stderr, "Color support not compiled in.\n");
 360 #endif /*COLORLS*/
 361
 362 #ifdef COLORLS
 363         if (f_color) {
 364                 /*
 365                  * We can't put tabs and color sequences together:
 366                  * column number will be incremented incorrectly
 367                  * for "stty oxtabs" mode.
 368                  */
 369                 f_notabs = 1;
 370                 signal(SIGINT, colorquit);
 371                 signal(SIGQUIT, colorquit);
 372                 parsecolors(getenv("LSCOLORS"));
 373         }
 374 #endif
 375
 376         /*
 377          * If not -F, -i, -l, -s, -S or -t options, don't require stat
 378          * information, unless in color mode in which case we do
 379          * need this to determine which colors to display.
 380          */
 381         if (!f_inode && !f_longform && !f_size && !f_timesort &&
 382             !f_sizesort && !f_type
 383 #ifdef COLORLS
 384             && !f_color
 385 #endif
 386             )
 387                 fts_options |= FTS_NOSTAT;
 388
 389         /*
 390          * If not -F, -d or -l options, follow any symbolic links listed on
 391          * the command line.
 392          */
 393         if (!f_longform && !f_listdir && !f_type)
 394                 fts_options |= FTS_COMFOLLOW;
 395
 396         /*
 397          * If -W, show whiteout entries
 398          */
 399 #ifdef FTS_WHITEOUT
 400         if (f_whiteout)
 401                 fts_options |= FTS_WHITEOUT;
 402 #endif
 403
 404         /* If -l or -s, figure out block size. */
 405         if (f_longform || f_size) {
 406                 if (f_kblocks)
 407                         blocksize = 2;
 408                 else {
 409                         getbsize(&notused, &blocksize);
 410                         blocksize /= 512;
 411                 }
 412         }
 413         /* Select a sort function. */
 414         if (f_reversesort) {
 415                 if (!f_timesort && !f_sizesort)
 416                         sortfcn = revnamecmp;
 417                 else if (f_sizesort)
 418                         sortfcn = revsizecmp;
 419                 else if (f_accesstime)
 420                         sortfcn = revacccmp;
 421                 else if (f_statustime)
 422                         sortfcn = revstatcmp;
 423                 else            /* Use modification time. */
 424                         sortfcn = revmodcmp;
 425         } else {
 426                 if (!f_timesort && !f_sizesort)
 427                         sortfcn = namecmp;
 428                 else if (f_sizesort)
 429                         sortfcn = sizecmp;
 430                 else if (f_accesstime)
 431                         sortfcn = acccmp;
 432                 else if (f_statustime)
 433                         sortfcn = statcmp;
 434                 else            /* Use modification time. */
 435                         sortfcn = modcmp;
 436         }
 437
 438         /* Select a print function. */
 439         if (f_singlecol)
 440                 printfcn = printscol;
 441         else if (f_longform)
 442                 printfcn = printlong;
 443         else if (f_stream)
 444                 printfcn = printstream;
 445         else
 446                 printfcn = printcol;
 447
 448         if (argc)
 449                 traverse(argc, argv, fts_options);
 450         else
 451                 traverse(1, dotav, fts_options);
 452         exit(rval);
 453 }
 454
 455 static int output;              /* If anything output. */
 456
 457 /*
 458  * Traverse() walks the logical directory structure specified by the argv list
 459  * in the order specified by the mastercmp() comparison function.  During the
 460  * traversal it passes linked lists of structures to display() which represent
 461  * a superset (may be exact set) of the files to be displayed.
 462  */
 463 static void
 464 traverse(int argc, char *argv[], int options)
 465 {
 466         FTS *ftsp;
 467         FTSENT *p, *chp;
 468         int ch_options, error;
 469
 470         if ((ftsp =
 471             fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL)
 472                 err(1, "fts_open");
 473
 474         /*
 475          * We ignore errors from fts_children here since they will be
 476          * replicated and signalled on the next call to fts_read() below.
 477          */
 478         chp = fts_children(ftsp, 0);
 479         if (chp != NULL)
 480                 display(NULL, chp);
 481         if (f_listdir) {
 482                 fts_close(ftsp);
 483                 return;
 484         }
 485
 486         /*
 487          * If not recursing down this tree and don't need stat info, just get
 488          * the names.
 489          */
 490         ch_options = !f_recursive && options & FTS_NOSTAT ? FTS_NAMEONLY : 0;
 491
 492         while ((p = fts_read(ftsp)) != NULL)
 493                 switch (p->fts_info) {
 494                 case FTS_DC:
 495                         warnx("%s: directory causes a cycle", p->fts_name);
 496                         break;
 497                 case FTS_DNR:
 498                 case FTS_ERR:
 499                         warnx("%s: %s", p->fts_name, strerror(p->fts_errno));
 500                         rval = 1;
 501                         break;
 502                 case FTS_D:
 503                         if (p->fts_level != FTS_ROOTLEVEL &&
 504                             p->fts_name[0] == '.' && !f_listdot)
 505                                 break;
 506
 507                         /*
 508                          * If already output something, put out a newline as
 509                          * a separator.  If multiple arguments, precede each
 510                          * directory with its name.
 511                          */
 512                         if (output) {
 513                                 putchar('\n');
 514                                 printname(p->fts_path);
 515                                 puts(":");
 516                         } else if (argc > 1) {
 517                                 printname(p->fts_path);
 518                                 puts(":");
 519                                 output = 1;
 520                         }
 521                         chp = fts_children(ftsp, ch_options);
 522                         display(p, chp);
 523
 524                         if (!f_recursive && chp != NULL)
 525                                 fts_set(ftsp, p, FTS_SKIP);
 526                         break;
 527                 default:
 528                         break;
 529                 }
 530         error = errno;
 531         fts_close(ftsp);
 532         errno = error;
 533         if (errno)
 534                 err(1, "fts_read");
 535 }
 536
 537 /*
 538  * Display() takes a linked list of FTSENT structures and passes the list
 539  * along with any other necessary information to the print function.  P
 540  * points to the parent directory of the display list.
 541  */
 542 static void
 543 display(const FTSENT *p, FTSENT *list)
 544 {
 545         struct stat *sp;
 546         DISPLAY d;
 547         FTSENT *cur;
 548         NAMES *np;
 549         off_t maxsize;
 550         u_long btotal, maxlen;
 551         int64_t maxblock;
 552         ino_t maxinode;
 553         nlink_t maxnlink;
 554         int bcfile, maxflags;
 555         gid_t maxgroup;
 556         uid_t maxuser;
 557         size_t fsmidlen, flen, ulen, glen;
 558         char *initmax;
 559         int entries, needstats;
 560         const char *user, *group;
 561         char *flags;
 562 #ifdef _ST_FSMID_PRESENT_
 563         int64_t fsmid;
 564 #endif
 565         char buf[STRBUF_SIZEOF(u_quad_t) + 1];
 566         char ngroup[STRBUF_SIZEOF(uid_t) + 1];
 567         char nuser[STRBUF_SIZEOF(gid_t) + 1];
 568
 569         needstats = f_inode || f_longform || f_size;
 570         btotal = 0;
 571         initmax = getenv("LS_COLWIDTHS");
 572         /* Fields match -lios order.  New ones should be added at the end. */
 573         maxblock = maxinode = maxlen = maxnlink =
 574             maxuser = maxgroup = maxflags = maxsize = 0;
 575         if (initmax != NULL && *initmax != '\0') {
 576                 char *initmax2, *jinitmax;
 577                 int ninitmax;
 578
 579                 /* Fill-in "::" as "0:0:0" for the sake of scanf. */
 580                 jinitmax = malloc(strlen(initmax) * 2 + 2);
 581                 if (jinitmax == NULL)
 582                         err(1, "malloc");
 583                 initmax2 = jinitmax;
 584                 if (*initmax == ':')
 585                         strcpy(initmax2, "0:"), initmax2 += 2;
 586                 else
 587                         *initmax2++ = *initmax, *initmax2 = '\0';
 588                 for (initmax++; *initmax != '\0'; initmax++) {
 589                         if (initmax[-1] == ':' && initmax[0] == ':') {
 590                                 *initmax2++ = '0';
 591                                 *initmax2++ = initmax[0];
 592                                 initmax2[1] = '\0';
 593                         } else {
 594                                 *initmax2++ = initmax[0];
 595                                 initmax2[1] = '\0';
 596                         }
 597                 }
 598                 if (initmax2[-1] == ':')
 599                         strcpy(initmax2, "0");
 600
 601                 ninitmax = sscanf(jinitmax,
 602                     " %ju : %jd : %u : %i : %i : %i : %jd : %lu ",
 603                     &maxinode, &maxblock, &maxnlink, &maxuser,
 604                     &maxgroup, &maxflags, &maxsize, &maxlen);
 605                 f_notabs = 1;
 606                 switch (ninitmax) {
 607                 case 0:
 608                         maxinode = 0;
 609                         /* FALLTHROUGH */
 610                 case 1:
 611                         maxblock = 0;
 612                         /* FALLTHROUGH */
 613                 case 2:
 614                         maxnlink = 0;
 615                         /* FALLTHROUGH */
 616                 case 3:
 617                         maxuser = 0;
 618                         /* FALLTHROUGH */
 619                 case 4:
 620                         maxgroup = 0;
 621                         /* FALLTHROUGH */
 622                 case 5:
 623                         maxflags = 0;
 624                         /* FALLTHROUGH */
 625                 case 6:
 626                         maxsize = 0;
 627                         /* FALLTHROUGH */
 628                 case 7:
 629                         maxlen = 0;
 630                         /* FALLTHROUGH */
 631 #ifdef COLORLS
 632                         if (!f_color)
 633 #endif
 634                                 f_notabs = 0;
 635                         /* FALLTHROUGH */
 636                 default:
 637                         break;
 638                 }
 639                 MAKENINES(maxinode);
 640                 MAKENINES(maxblock);
 641                 MAKENINES(maxnlink);
 642                 MAKENINES(maxsize);
 643                 free(jinitmax);
 644         }
 645         bcfile = 0;
 646         flags = NULL;
 647         for (cur = list, entries = 0; cur; cur = cur->fts_link) {
 648                 if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) {
 649                         warnx("%s: %s",
 650                             cur->fts_name, strerror(cur->fts_errno));
 651                         cur->fts_number = NO_PRINT;
 652                         rval = 1;
 653                         continue;
 654                 }
 655                 /*
 656                  * P is NULL if list is the argv list, to which different rules
 657                  * apply.
 658                  */
 659                 if (p == NULL) {
 660                         /* Directories will be displayed later. */
 661                         if (cur->fts_info == FTS_D && !f_listdir) {
 662                                 cur->fts_number = NO_PRINT;
 663                                 continue;
 664                         }
 665                 } else {
 666                         /* Only display dot file if -a/-A set. */
 667                         if (cur->fts_name[0] == '.' && !f_listdot) {
 668                                 cur->fts_number = NO_PRINT;
 669                                 continue;
 670                         }
 671                 }
 672                 if (cur->fts_namelen > maxlen)
 673                         maxlen = cur->fts_namelen;
 674                 if (f_octal || f_octal_escape) {
 675                         u_long t = len_octal(cur->fts_name, cur->fts_namelen);
 676
 677                         if (t > maxlen)
 678                                 maxlen = t;
 679                 }
 680                 if (needstats) {
 681                         sp = cur->fts_statp;
 682                         if (sp->st_blocks > maxblock)
 683                                 maxblock = sp->st_blocks;
 684                         if (sp->st_ino > maxinode)
 685                                 maxinode = sp->st_ino;
 686                         if (sp->st_nlink > maxnlink)
 687                                 maxnlink = sp->st_nlink;
 688                         if (sp->st_size > maxsize)
 689                                 maxsize = sp->st_size;
 690
 691                         btotal += sp->st_blocks;
 692                         if (f_longform) {
 693                                 if (f_numericonly) {
 694                                         snprintf(nuser, sizeof(nuser),
 695                                             "%u", sp->st_uid);
 696                                         snprintf(ngroup, sizeof(ngroup),
 697                                             "%u", sp->st_gid);
 698                                         user = nuser;
 699                                         group = ngroup;
 700                                 } else {
 701                                         user = user_from_uid(sp->st_uid, 0);
 702                                         group = group_from_gid(sp->st_gid, 0);
 703                                 }
 704                                 if ((ulen = strlen(user)) > maxuser)
 705                                         maxuser = ulen;
 706                                 if ((glen = strlen(group)) > maxgroup)
 707                                         maxgroup = glen;
 708                                 if (f_flags) {
 709                                         flags = fflagstostr(sp->st_flags);
 710                                         if (flags != NULL && *flags == '\0') {
 711                                                 free(flags);
 712                                                 flags = strdup("-");
 713                                         }
 714                                         if (flags == NULL)
 715                                                 err(1, "flagstostr");
 716                                         flen = strlen(flags);
 717                                         if (flen > (size_t)maxflags)
 718                                                 maxflags = flen;
 719                                 } else {
 720                                         flen = 0;
 721                                 }
 722 #ifdef _ST_FSMID_PRESENT_
 723                                 if (f_fsmid) {
 724                                         fsmid = sp->st_fsmid;
 725                                         fsmidlen = 18;
 726                                 } else {
 727                                         fsmid = 0;
 728                                         fsmidlen = 0;
 729                                 }
 730 #else
 731                                 fsmidlen = 0;
 732 #endif
 733
 734                                 if ((np = malloc(sizeof(NAMES) +
 735                                     ulen + glen + flen + fsmidlen + 4)) == NULL)
 736                                         err(1, "malloc");
 737
 738                                 np->user = &np->data[0];
 739                                 strcpy(np->user, user);
 740                                 np->group = &np->data[ulen + 1];
 741                                 strcpy(np->group, group);
 742
 743                                 if (S_ISCHR(sp->st_mode) ||
 744                                     S_ISBLK(sp->st_mode))
 745                                         bcfile = 1;
 746
 747                                 if (f_flags) {
 748                                         np->flags = &np->data[ulen + glen + 2];
 749                                         strcpy(np->flags, flags);
 750                                         free(flags);
 751                                 }
 752 #ifdef _ST_FSMID_PRESENT_
 753                                 if (f_fsmid) {
 754                                         np->fsmid = np->data + ulen + glen + flen + 3;
 755                                         snprintf(np->fsmid, fsmidlen + 1,
 756                                                  "%016jx", (intmax_t)fsmid);
 757                                 }
 758 #endif
 759                                 cur->fts_pointer = np;
 760                         }
 761                 }
 762                 ++entries;
 763         }
 764
 765         /*
 766          * If there are no entries to display, we normally stop right
 767          * here.  However, we must continue if we have to display the
 768          * total block count.  In this case, we display the total only
 769          * on the second (p != NULL) pass.
 770          */
 771         if (!entries && (!(f_longform || f_size) || p == NULL))
 772                 return;
 773
 774         d.list = list;
 775         d.entries = entries;
 776         d.maxlen = maxlen;
 777         if (needstats) {
 778                 d.bcfile = bcfile;
 779                 d.btotal = btotal;
 780                 snprintf(buf, sizeof(buf), "%ji", (intmax_t)maxblock);
 781                 d.s_block = strlen(buf);
 782                 d.s_flags = maxflags;
 783                 d.s_group = maxgroup;
 784                 snprintf(buf, sizeof(buf), "%ju", (uintmax_t)maxinode);
 785                 d.s_inode = strlen(buf);
 786                 snprintf(buf, sizeof(buf), "%u", maxnlink);
 787                 d.s_nlink = strlen(buf);
 788                 snprintf(buf, sizeof(buf), "%jd", (intmax_t)maxsize);
 789                 d.s_size = strlen(buf);
 790                 d.s_user = maxuser;
 791         }
 792         printfcn(&d);
 793         output = 1;
 794
 795         if (f_longform)
 796                 for (cur = list; cur; cur = cur->fts_link)
 797                         free(cur->fts_pointer);
 798 }
 799
 800 /*
 801  * Ordering for mastercmp:
 802  * If ordering the argv (fts_level = FTS_ROOTLEVEL) return non-directories
 803  * as larger than directories.  Within either group, use the sort function.
 804  * All other levels use the sort function.  Error entries remain unsorted.
 805  */
 806 static int
 807 mastercmp(const FTSENT * const *a, const FTSENT * const *b)
 808 {
 809         int a_info, b_info;
 810
 811         a_info = (*a)->fts_info;
 812         if (a_info == FTS_ERR)
 813                 return (0);
 814         b_info = (*b)->fts_info;
 815         if (b_info == FTS_ERR)
 816                 return (0);
 817
 818         if (a_info == FTS_NS || b_info == FTS_NS)
 819                 return (namecmp(*a, *b));
 820
 821         if (a_info != b_info &&
 822             (*a)->fts_level == FTS_ROOTLEVEL && !f_listdir) {
 823                 if (a_info == FTS_D)
 824                         return (1);
 825                 if (b_info == FTS_D)
 826                         return (-1);
 827         }
 828         return (sortfcn(*a, *b));
 829 }