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 #include <sys/cdefs.h>
  38 #ifndef lint
  39 __used static const char copyright[] =
  40 "@(#) Copyright (c) 1989, 1993, 1994\n\
  41         The Regents of the University of California.  All rights reserved.\n";
  42 #endif /* not lint */
  43
  44 #if 0
  45 #ifndef lint
  46 static char sccsid[] = "@(#)ls.c        8.5 (Berkeley) 4/2/94";
  47 #endif /* not lint */
  48 #endif
  49 #include <sys/cdefs.h>
  50 __RCSID("$FreeBSD: src/bin/ls/ls.c,v 1.66 2002/09/21 01:28:36 wollman Exp $");
  51
  52 #include <sys/types.h>
  53 #include <sys/stat.h>
  54 #include <sys/ioctl.h>
  55
  56 #include <dirent.h>
  57 #include <err.h>
  58 #include <errno.h>
  59 #include <fts.h>
  60 #include <grp.h>
  61 #include <limits.h>
  62 #include <locale.h>
  63 #include <pwd.h>
  64 #include <stdio.h>
  65 #include <stdlib.h>
  66 #include <string.h>
  67 #include <unistd.h>
  68 #ifdef COLORLS
  69 #include <termcap.h>
  70 #include <signal.h>
  71 #endif
  72 #ifdef __APPLE__
  73 #include <sys/acl.h>
  74 #include <sys/xattr.h>
  75 #include <sys/param.h>
  76 #include <get_compat.h>
  77 #else
  78 #define COMPAT_MODE(a,b) (1)
  79 #endif /* __APPLE__ */
  80 #include "ls.h"
  81 #include "extern.h"
  82
  83 /*
  84  * Upward approximation of the maximum number of characters needed to
  85  * represent a value of integral type t as a string, excluding the
  86  * NUL terminator, with provision for a sign.
  87  */
  88 #define STRBUF_SIZEOF(t)        (1 + CHAR_BIT * sizeof(t) / 3 + 1)
  89
  90 static void      display(FTSENT *, FTSENT *);
  91 static u_quad_t  makenines(u_quad_t);
  92 static int       mastercmp(const FTSENT **, const FTSENT **);
  93 static void      traverse(int, char **, int);
  94
  95 static void (*printfcn)(DISPLAY *);
  96 static int (*sortfcn)(const FTSENT *, const FTSENT *);
  97
  98 long blocksize;                 /* block size units */
  99 int termwidth = 80;             /* default terminal width */
 100
 101 /* flags */
 102        int f_accesstime;        /* use time of last access */
 103        int f_birthtime;         /* use time of file birth */
 104        int f_flags;             /* show flags associated with a file */
 105        int f_humanval;          /* show human-readable file sizes */
 106        int f_inode;             /* print inode */
 107 static int f_kblocks;           /* print size in kilobytes */
 108 static int f_listdir;           /* list actual directory, not contents */
 109 static int f_listdot;           /* list files beginning with . */
 110        int f_longform;          /* long listing format */
 111        int f_nonprint;          /* show unprintables as ? */
 112 static int f_nosort;            /* don't sort output */
 113        int f_notabs;            /* don't use tab-separated multi-col output */
 114        int f_numericonly;       /* don't convert uid/gid to name */
 115        int f_octal;             /* show unprintables as \xxx */
 116        int f_octal_escape;      /* like f_octal but use C escapes if possible */
 117 static int f_recursive;         /* ls subdirectories also */
 118 static int f_reversesort;       /* reverse whatever sort is used */
 119        int f_sectime;           /* print the real time for all files */
 120 static int f_singlecol;         /* use single column output */
 121        int f_size;              /* list size in short listing */
 122        int f_slash;             /* similar to f_type, but only for dirs */
 123        int f_sortacross;        /* sort across rows, not down columns */
 124        int f_statustime;        /* use time of last mode change */
 125        int f_stream;            /* stream the output, separate with commas */
 126 static int f_timesort;          /* sort by time vice name */
 127 static int f_sizesort;          /* sort by size */
 128        int f_type;              /* add type character for non-regular files */
 129 static int f_whiteout;          /* show whiteout entries */
 130        int f_acl;               /* show ACLs in long listing */
 131        int f_xattr;             /* show extended attributes in long listing */
 132        int f_group;             /* show group */
 133        int f_owner;             /* show owner */
 134 #ifdef COLORLS
 135        int f_color;             /* add type in color for non-regular files */
 136
 137 char *ansi_bgcol;               /* ANSI sequence to set background colour */
 138 char *ansi_fgcol;               /* ANSI sequence to set foreground colour */
 139 char *ansi_coloff;              /* ANSI sequence to reset colours */
 140 char *attrs_off;                /* ANSI sequence to turn off attributes */
 141 char *enter_bold;               /* ANSI sequence to set color to bold mode */
 142 #endif
 143
 144 static int rval;
 145
 146 int
 147 main(int argc, char *argv[])
 148 {
 149         static char dot[] = ".", *dotav[] = {dot, NULL};
 150         struct winsize win;
 151         int ch, fts_options, notused;
 152         char *p;
 153 #ifdef COLORLS
 154         char termcapbuf[1024];  /* termcap definition buffer */
 155         char tcapbuf[512];      /* capability buffer */
 156         char *bp = tcapbuf;
 157 #endif
 158
 159         if (argc < 1)
 160                 usage();
 161         (void)setlocale(LC_ALL, "");
 162
 163         /* Terminal defaults to -Cq, non-terminal defaults to -1. */
 164         if (isatty(STDOUT_FILENO)) {
 165                 termwidth = 80;
 166                 if ((p = getenv("COLUMNS")) != NULL && *p != '\0')
 167                         termwidth = atoi(p);
 168                 else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) != -1 &&
 169                     win.ws_col > 0)
 170                         termwidth = win.ws_col;
 171                 f_nonprint = 1;
 172         } else {
 173                 f_singlecol = 1;
 174                 /* retrieve environment variable, in case of explicit -C */
 175                 p = getenv("COLUMNS");
 176                 if (p)
 177                         termwidth = atoi(p);
 178         }
 179
 180         /* Root is -A automatically. */
 181         if (!getuid())
 182                 f_listdot = 1;
 183
 184         fts_options = FTS_PHYSICAL;
 185         while ((ch = getopt(argc, argv, "1@ABCFGHLOPRSTUWabcdefghiklmnopqrstuvwx"))
 186             != -1) {
 187                 switch (ch) {
 188                 /*
 189                  * The -1, -C, -x and -l options all override each other so
 190                  * shell aliasing works right.
 191                  */
 192                 case '1':
 193                         f_singlecol = 1;
 194                         f_longform = 0;
 195                         f_stream = 0;
 196                         break;
 197                 case 'B':
 198                         f_nonprint = 0;
 199                         f_octal = 1;
 200                         f_octal_escape = 0;
 201                         break;
 202                 case 'C':
 203                         f_sortacross = f_longform = f_singlecol = 0;
 204                         break;
 205                 case 'l':
 206                         f_longform = 1;
 207                         f_singlecol = 0;
 208                         f_stream = 0;
 209                         break;
 210                 case 'x':
 211                         f_sortacross = 1;
 212                         f_longform = 0;
 213                         f_singlecol = 0;
 214                         break;
 215                 /* The -c and -u options override each other. */
 216                 case 'c':
 217                         f_statustime = 1;
 218                         f_accesstime = f_birthtime = 0;
 219                         break;
 220                 case 'u':
 221                         f_accesstime = 1;
 222                         f_statustime = f_birthtime = 0;
 223                         break;
 224                 case 'U':
 225                         f_birthtime = 1;
 226                         f_statustime = f_accesstime = 0;
 227                         break;
 228                 case 'F':
 229                         f_type = 1;
 230                         f_slash = 0;
 231                         break;
 232                 case 'H':
 233                         if (COMPAT_MODE("bin/ls", "Unix2003")) {
 234                                 fts_options &= ~FTS_LOGICAL;
 235                                 fts_options |= FTS_PHYSICAL;
 236                                 fts_options |= FTS_COMFOLLOWDIR;
 237                         } else
 238                                 fts_options |= FTS_COMFOLLOW;
 239                         break;
 240                 case 'G':
 241                         setenv("CLICOLOR", "", 1);
 242                         break;
 243                 case 'L':
 244                         fts_options &= ~FTS_PHYSICAL;
 245                         fts_options |= FTS_LOGICAL;
 246                         if (COMPAT_MODE("bin/ls", "Unix2003")) {
 247                                 fts_options &= ~(FTS_COMFOLLOW|FTS_COMFOLLOWDIR);
 248                         }
 249                         break;
 250                 case 'P':
 251                         fts_options &= ~(FTS_COMFOLLOW|FTS_COMFOLLOWDIR);
 252                         fts_options &= ~FTS_LOGICAL;
 253                         fts_options |= FTS_PHYSICAL;
 254                         break;
 255                 case 'R':
 256                         f_recursive = 1;
 257                         break;
 258                 case 'a':
 259                         fts_options |= FTS_SEEDOT;
 260                         /* FALLTHROUGH */
 261                 case 'A':
 262                         f_listdot = 1;
 263                         break;
 264                 /* The -d option turns off the -R option. */
 265                 case 'd':
 266                         f_listdir = 1;
 267                         f_recursive = 0;
 268                         break;
 269                 case 'f':
 270                         f_nosort = 1;
 271                         if (COMPAT_MODE("bin/ls", "Unix2003")) {
 272                                 fts_options |= FTS_SEEDOT;
 273                                 f_listdot = 1;
 274                         }
 275                         break;
 276                 case 'g':       /* Compatibility with Unix03 */
 277                         if (COMPAT_MODE("bin/ls", "Unix2003")) {
 278                                 f_group = 1;
 279                                 f_longform = 1;
 280                                 f_singlecol = 0;
 281                                 f_stream = 0;
 282                         }
 283                         break;
 284                 case 'h':
 285                         f_humanval = 1;
 286                         break;
 287                 case 'i':
 288                         f_inode = 1;
 289                         break;
 290                 case 'k':
 291                         f_kblocks = 1;
 292                         break;
 293                 case 'm':
 294                         f_stream = 1;
 295                         f_singlecol = 0;
 296                         f_longform = 0;
 297                         break;
 298                 case 'n':
 299                         f_numericonly = 1;
 300                         if (COMPAT_MODE("bin/ls", "Unix2003")) {
 301                                 f_longform = 1;
 302                                 f_singlecol = 0;
 303                                 f_stream = 0;
 304                         }
 305                         break;
 306                 case 'o':
 307                         if (COMPAT_MODE("bin/ls", "Unix2003")) {
 308                                 f_owner = 1;
 309                                 f_longform = 1;
 310                                 f_singlecol = 0;
 311                                 f_stream = 0;
 312                         } else {
 313                                 f_flags = 1;
 314                         }
 315                         break;
 316                 case 'p':
 317                         f_slash = 1;
 318                         f_type = 1;
 319                         break;
 320                 case 'q':
 321                         f_nonprint = 1;
 322                         f_octal = 0;
 323                         f_octal_escape = 0;
 324                         break;
 325                 case 'r':
 326                         f_reversesort = 1;
 327                         break;
 328                 case 'S':
 329                         /* Darwin 1.4.1 compatibility */
 330                         f_sizesort = 1;
 331                         break;
 332                 case 's':
 333                         f_size = 1;
 334                         break;
 335                 case 'T':
 336                         f_sectime = 1;
 337                         break;
 338                 case 't':
 339                         f_timesort = 1;
 340                         break;
 341                 case 'W':
 342                         f_whiteout = 1;
 343                         break;
 344                 case 'v':
 345                         /* Darwin 1.4.1 compatibility */
 346                         f_nonprint = 0;
 347                         break;
 348                 case 'b':
 349                         f_nonprint = 0;
 350                         f_octal = 0;
 351                         f_octal_escape = 1;
 352                         break;
 353                 case 'w':
 354                         f_nonprint = 0;
 355                         f_octal = 0;
 356                         f_octal_escape = 0;
 357                         break;
 358                 case 'e':
 359                         f_acl = 1;
 360                         break;
 361                 case '@':
 362                         f_xattr = 1;
 363                         break;
 364                 case 'O':
 365                         f_flags = 1;
 366                         break;
 367                 default:
 368                 case '?':
 369                         usage();
 370                 }
 371         }
 372         argc -= optind;
 373         argv += optind;
 374
 375         /* Enabling of colours is conditional on the environment. */
 376         if (getenv("CLICOLOR") &&
 377             (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE")))
 378 #ifdef COLORLS
 379                 if (tgetent(termcapbuf, getenv("TERM")) == 1) {
 380                         ansi_fgcol = tgetstr("AF", &bp);
 381                         ansi_bgcol = tgetstr("AB", &bp);
 382                         attrs_off = tgetstr("me", &bp);
 383                         enter_bold = tgetstr("md", &bp);
 384
 385                         /* To switch colours off use 'op' if
 386                          * available, otherwise use 'oc', or
 387                          * don't do colours at all. */
 388                         ansi_coloff = tgetstr("op", &bp);
 389                         if (!ansi_coloff)
 390                                 ansi_coloff = tgetstr("oc", &bp);
 391                         if (ansi_fgcol && ansi_bgcol && ansi_coloff)
 392                                 f_color = 1;
 393                 }
 394 #else
 395                 (void)fprintf(stderr, "Color support not compiled in.\n");
 396 #endif /*COLORLS*/
 397
 398 #ifdef COLORLS
 399         if (f_color) {
 400                 /*
 401                  * We can't put tabs and color sequences together:
 402                  * column number will be incremented incorrectly
 403                  * for "stty oxtabs" mode.
 404                  */
 405                 f_notabs = 1;
 406                 (void)signal(SIGINT, colorquit);
 407                 (void)signal(SIGQUIT, colorquit);
 408                 parsecolors(getenv("LSCOLORS"));
 409         }
 410 #endif
 411
 412         /*
 413          * If not -F, -i, -l, -s or -t options, don't require stat
 414          * information, unless in color mode in which case we do
 415          * need this to determine which colors to display.
 416          */
 417         if (!f_inode && !f_longform && !f_size && !f_timesort && !f_type && !f_sizesort
 418 #ifdef COLORLS
 419             && !f_color
 420 #endif
 421             )
 422                 fts_options |= FTS_NOSTAT;
 423
 424         /*
 425          * If not -F, -d or -l options, follow any symbolic links listed on
 426          * the command line.
 427          */
 428         if (!f_longform && !f_listdir && !f_type && !f_inode)
 429                 fts_options |= FTS_COMFOLLOW;
 430
 431         /*
 432          * If -W, show whiteout entries
 433          */
 434 #ifdef FTS_WHITEOUT
 435         if (f_whiteout)
 436                 fts_options |= FTS_WHITEOUT;
 437 #endif
 438
 439         /* If -l or -s, figure out block size. */
 440         if (f_longform || f_size) {
 441                 if (f_kblocks)
 442                         blocksize = 2;
 443                 else {
 444                         (void)getbsize(&notused, &blocksize);
 445                         blocksize /= 512;
 446                 }
 447         }
 448         /* Select a sort function. */
 449         if (f_reversesort) {
 450                 if (f_sizesort)
 451                         sortfcn = revsizecmp;
 452                 else if (!f_timesort)
 453                         sortfcn = revnamecmp;
 454                 else if (f_accesstime)
 455                         sortfcn = revacccmp;
 456                 else if (f_statustime)
 457                         sortfcn = revstatcmp;
 458                 else if (f_birthtime)
 459                         sortfcn = revbirthcmp;
 460                 else            /* Use modification time. */
 461                         sortfcn = revmodcmp;
 462         } else {
 463                 if (f_sizesort)
 464                         sortfcn = sizecmp;
 465                 else if (!f_timesort)
 466                         sortfcn = namecmp;
 467                 else if (f_accesstime)
 468                         sortfcn = acccmp;
 469                 else if (f_statustime)
 470                         sortfcn = statcmp;
 471                 else if (f_birthtime)
 472                         sortfcn = birthcmp;
 473                 else            /* Use modification time. */
 474                         sortfcn = modcmp;
 475         }
 476
 477         /* Select a print function. */
 478         if (f_singlecol)
 479                 printfcn = printscol;
 480         else if (f_longform)
 481                 printfcn = printlong;
 482         else if (f_stream)
 483                 printfcn = printstream;
 484         else
 485                 printfcn = printcol;
 486
 487         if (argc)
 488                 traverse(argc, argv, fts_options);
 489         else
 490                 traverse(1, dotav, fts_options);
 491         exit(rval);
 492 }
 493
 494 static int output;              /* If anything output. */
 495
 496 /*
 497  * Traverse() walks the logical directory structure specified by the argv list
 498  * in the order specified by the mastercmp() comparison function.  During the
 499  * traversal it passes linked lists of structures to display() which represent
 500  * a superset (may be exact set) of the files to be displayed.
 501  */
 502 static void
 503 traverse(int argc, char *argv[], int options)
 504 {
 505         FTS *ftsp;
 506         FTSENT *p, *chp;
 507         int ch_options, error;
 508
 509         if ((ftsp =
 510             fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL)
 511                 err(1, "fts_open");
 512
 513         display(NULL, fts_children(ftsp, 0));
 514         if (f_listdir) {
 515                 fts_close(ftsp);
 516                 return;
 517         }
 518
 519         /*
 520          * If not recursing down this tree and don't need stat info, just get
 521          * the names.
 522          */
 523         ch_options = !f_recursive && options & FTS_NOSTAT ? FTS_NAMEONLY : 0;
 524
 525         while ((p = fts_read(ftsp)) != NULL)
 526                 switch (p->fts_info) {
 527                 case FTS_DC:
 528                         warnx("%s: directory causes a cycle", p->fts_name);
 529                         if (COMPAT_MODE("bin/ls", "Unix2003")) {
 530                                 rval = 1;
 531                         }
 532                         break;
 533                 case FTS_DNR:
 534                 case FTS_ERR:
 535                         warnx("%s: %s", p->fts_name, strerror(p->fts_errno));
 536                         rval = 1;
 537                         break;
 538                 case FTS_D:
 539                         if (p->fts_level != FTS_ROOTLEVEL &&
 540                             p->fts_name[0] == '.' && !f_listdot) {
 541                                 fts_set(ftsp, p, FTS_SKIP);
 542                                 break;
 543                         }
 544
 545                         /*
 546                          * If already output something, put out a newline as
 547                          * a separator.  If multiple arguments, precede each
 548                          * directory with its name.
 549                          */
 550                         if (output)
 551                                 (void)printf("\n%s:\n", p->fts_path);
 552                         else if (argc > 1) {
 553                                 (void)printf("%s:\n", p->fts_path);
 554                                 output = 1;
 555                         }
 556                         chp = fts_children(ftsp, ch_options);
 557                         if (COMPAT_MODE("bin/ls", "Unix2003") && ((options & FTS_LOGICAL)!=0)) {
 558                                 FTSENT *curr;
 559                                 for (curr = chp; curr; curr = curr->fts_link) {
 560                                         if (curr->fts_info == FTS_SLNONE)
 561                                                 curr->fts_number = NO_PRINT;
 562                                 }
 563                         }
 564                         display(p, chp);
 565
 566                         if (!f_recursive && chp != NULL)
 567                                 (void)fts_set(ftsp, p, FTS_SKIP);
 568                         break;
 569                 case FTS_SLNONE:        /* Same as default unless Unix conformance */
 570                         if (COMPAT_MODE("bin/ls", "Unix2003")) {
 571                                 if ((options & FTS_LOGICAL)!=0) {       /* -L was specified */
 572                                         warnx("%s: %s", p->fts_name, strerror(p->fts_errno ?: ENOENT));
 573                                         rval = 1;
 574                                 }
 575                         }
 576                         break;
 577                 default:
 578                         break;
 579                 }
 580         error = errno;
 581         fts_close(ftsp);
 582         errno = error;
 583
 584         if (errno)
 585                 err(1, "fts_read");
 586 }
 587
 588 /*
 589  * Display() takes a linked list of FTSENT structures and passes the list
 590  * along with any other necessary information to the print function.  P
 591  * points to the parent directory of the display list.
 592  */
 593 static void
 594 display(FTSENT *p, FTSENT *list)
 595 {
 596         struct stat *sp;
 597         DISPLAY d;
 598         FTSENT *cur;
 599         NAMES *np;
 600         off_t maxsize;
 601         u_int64_t btotal, maxblock;
 602         u_long lattrlen, maxlen, maxnlink, maxlattr;
 603         ino_t maxinode;
 604         int bcfile, maxflags;
 605         gid_t maxgroup;
 606         uid_t maxuser;
 607         size_t flen, ulen, glen;
 608         char *initmax;
 609         int entries, needstats;
 610         const char *user, *group;
 611         char *flags, *lattr = NULL;
 612         char buf[STRBUF_SIZEOF(u_quad_t) + 1];
 613         char ngroup[STRBUF_SIZEOF(uid_t) + 1];
 614         char nuser[STRBUF_SIZEOF(gid_t) + 1];
 615 #ifdef __APPLE__
 616         acl_entry_t dummy;
 617         ssize_t xattr_size;
 618         char *filename;
 619         char path[MAXPATHLEN+1];
 620 #endif // __APPLE__
 621         /*
 622          * If list is NULL there are two possibilities: that the parent
 623          * directory p has no children, or that fts_children() returned an
 624          * error.  We ignore the error case since it will be replicated
 625          * on the next call to fts_read() on the post-order visit to the
 626          * directory p, and will be signaled in traverse().
 627          */
 628         if (list == NULL)
 629                 return;
 630
 631         needstats = f_inode || f_longform || f_size;
 632         btotal = 0;
 633         initmax = getenv("LS_COLWIDTHS");
 634         /* Fields match -lios order.  New ones should be added at the end. */
 635         maxlattr = maxblock = maxinode = maxlen = maxnlink =
 636             maxuser = maxgroup = maxflags = maxsize = 0;
 637         if (initmax != NULL && *initmax != '\0') {
 638                 char *initmax2, *jinitmax;
 639                 int ninitmax;
 640
 641                 /* Fill-in "::" as "0:0:0" for the sake of scanf. */
 642                 jinitmax = initmax2 = malloc(strlen(initmax) * 2 + 2);
 643                 if (jinitmax == NULL)
 644                         err(1, "malloc");
 645                 if (*initmax == ':')
 646                         strcpy(initmax2, "0:"), initmax2 += 2;
 647                 else
 648                         *initmax2++ = *initmax, *initmax2 = '\0';
 649                 for (initmax++; *initmax != '\0'; initmax++) {
 650                         if (initmax[-1] == ':' && initmax[0] == ':') {
 651                                 *initmax2++ = '0';
 652                                 *initmax2++ = initmax[0];
 653                                 initmax2[1] = '\0';
 654                         } else {
 655                                 *initmax2++ = initmax[0];
 656                                 initmax2[1] = '\0';
 657                         }
 658                 }
 659                 if (initmax2[-1] == ':')
 660                         strcpy(initmax2, "0");
 661
 662                 ninitmax = sscanf(jinitmax,
 663 #if _DARWIN_FEATURE_64_BIT_INODE
 664                     " %llu : %qu : %lu : %i : %i : %i : %qu : %lu : %lu ",
 665 #else
 666                     " %lu : %qu : %lu : %i : %i : %i : %qu : %lu : %lu ",
 667 #endif
 668                     &maxinode, &maxblock, &maxnlink, &maxuser,
 669                     &maxgroup, &maxflags, &maxsize, &maxlen, &maxlattr);
 670                 f_notabs = 1;
 671                 switch (ninitmax) {
 672                 case 0:
 673                         maxinode = 0;
 674                         /* FALLTHROUGH */
 675                 case 1:
 676                         maxblock = 0;
 677                         /* FALLTHROUGH */
 678                 case 2:
 679                         maxnlink = 0;
 680                         /* FALLTHROUGH */
 681                 case 3:
 682                         maxuser = 0;
 683                         /* FALLTHROUGH */
 684                 case 4:
 685                         maxgroup = 0;
 686                         /* FALLTHROUGH */
 687                 case 5:
 688                         maxflags = 0;
 689                         /* FALLTHROUGH */
 690                 case 6:
 691                         maxsize = 0;
 692                         /* FALLTHROUGH */
 693                 case 7:
 694                         maxlen = 0;
 695                         /* FALLTHROUGH */
 696                 case 8:
 697                         maxlattr = 0;
 698                         /* FALLTHROUGH */
 699 #ifdef COLORLS
 700                         if (!f_color)
 701 #endif
 702                                 f_notabs = 0;
 703                         /* FALLTHROUGH */
 704                 default:
 705                         break;
 706                 }
 707                 maxinode = makenines(maxinode);
 708                 maxblock = makenines(maxblock);
 709                 maxnlink = makenines(maxnlink);
 710                 maxsize = makenines(maxsize);
 711         }
 712         bcfile = 0;
 713         flags = NULL;
 714         for (cur = list, entries = 0; cur; cur = cur->fts_link) {
 715                 if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) {
 716                         warnx("%s: %s",
 717                             cur->fts_name, strerror(cur->fts_errno));
 718                         cur->fts_number = NO_PRINT;
 719                         rval = 1;
 720                         continue;
 721                 }
 722                 /*
 723                  * P is NULL if list is the argv list, to which different rules
 724                  * apply.
 725                  */
 726                 if (p == NULL) {
 727                         /* Directories will be displayed later. */
 728                         if (cur->fts_info == FTS_D && !f_listdir) {
 729                                 cur->fts_number = NO_PRINT;
 730                                 continue;
 731                         }
 732                 } else {
 733                         /* Only display dot file if -a/-A set. */
 734                         if (cur->fts_name[0] == '.' && !f_listdot) {
 735                                 cur->fts_number = NO_PRINT;
 736                                 continue;
 737                         }
 738                 }
 739                 if (cur->fts_namelen > maxlen)
 740                         maxlen = cur->fts_namelen;
 741                 if (f_octal || f_octal_escape) {
 742                         u_long t = len_octal(cur->fts_name, cur->fts_namelen);
 743
 744                         if (t > maxlen)
 745                                 maxlen = t;
 746                 }
 747                 if (needstats) {
 748                         sp = cur->fts_statp;
 749                         if (sp->st_blocks > maxblock)
 750                                 maxblock = sp->st_blocks;
 751                         if (sp->st_ino > maxinode)
 752                                 maxinode = sp->st_ino;
 753                         if (sp->st_nlink > maxnlink)
 754                                 maxnlink = sp->st_nlink;
 755                         if (sp->st_size > maxsize)
 756                                 maxsize = sp->st_size;
 757
 758                         btotal += sp->st_blocks;
 759                         if (f_longform) {
 760                                 if (f_numericonly) {
 761                                         (void)snprintf(nuser, sizeof(nuser),
 762                                             "%u", sp->st_uid);
 763                                         (void)snprintf(ngroup, sizeof(ngroup),
 764                                             "%u", sp->st_gid);
 765                                         user = nuser;
 766                                         group = ngroup;
 767                                 } else {
 768                                         user = user_from_uid(sp->st_uid, 0);
 769                                         group = group_from_gid(sp->st_gid, 0);
 770                                 }
 771                                 if ((ulen = strlen(user)) > maxuser)
 772                                         maxuser = ulen;
 773                                 if ((glen = strlen(group)) > maxgroup)
 774                                         maxgroup = glen;
 775                                 if (f_flags) {
 776                                         flags = fflagstostr(sp->st_flags);
 777                                         if (flags != NULL && *flags == '\0') {
 778                                                 free(flags);
 779                                                 flags = strdup("-");
 780                                         }
 781                                         if (flags == NULL)
 782                                                 err(1, "fflagstostr");
 783                                         flen = strlen(flags);
 784                                         if (flen > (size_t)maxflags)
 785                                                 maxflags = flen;
 786                                 } else
 787                                         flen = 0;
 788                                 lattr = NULL;
 789                                 lattrlen = 0;
 790
 791                                 if ((np = calloc(1, sizeof(NAMES) + lattrlen +
 792                                     ulen + glen + flen + 4)) == NULL)
 793                                         err(1, "malloc");
 794
 795                                 np->user = &np->data[0];
 796                                 (void)strcpy(np->user, user);
 797                                 np->group = &np->data[ulen + 1];
 798                                 (void)strcpy(np->group, group);
 799 #ifdef __APPLE__
 800                                 if (cur->fts_level == FTS_ROOTLEVEL) {
 801                                         filename = cur->fts_name;
 802                                 } else {
 803                                         snprintf(path, sizeof(path), "%s/%s", cur->fts_parent->fts_accpath, cur->fts_name);
 804                                         filename = path;
 805                                 }
 806                                 xattr_size = listxattr(filename, NULL, 0, XATTR_NOFOLLOW);
 807                                 if (xattr_size < 0) {
 808                                         xattr_size = 0;
 809                                 }
 810                                 if ((xattr_size > 0) && f_xattr) {
 811                                         /* collect sizes */
 812                                         np->xattr_names = malloc(xattr_size);
 813                                         listxattr(filename, np->xattr_names, xattr_size, XATTR_NOFOLLOW);
 814                                         for (char *name = np->xattr_names; name < np->xattr_names + xattr_size;
 815                                              name += strlen(name)+1) {
 816                                                 np->xattr_sizes = reallocf(np->xattr_sizes, (np->xattr_count+1) * sizeof(np->xattr_sizes[0]));
 817                                                 np->xattr_sizes[np->xattr_count] = getxattr(filename, name, 0, 0, 0, XATTR_NOFOLLOW);
 818                                                 np->xattr_count++;
 819                                         }
 820                                 }
 821                                 /* symlinks can not have ACLs */
 822                                 np->acl = acl_get_link_np(filename, ACL_TYPE_EXTENDED);
 823                                 if (np->acl) {
 824                                         if (acl_get_entry(np->acl, ACL_FIRST_ENTRY, &dummy) == -1) {
 825                                                 acl_free(np->acl);
 826                                                 np->acl = NULL;
 827                                         }
 828                                 }
 829                                 if (xattr_size > 0) {
 830                                         np->mode_suffix = '@';
 831                                 } else if (np->acl) {
 832                                         np->mode_suffix = '+';
 833                                 } else {
 834                                         np->mode_suffix = ' ';
 835                                 }
 836                                 if (!f_acl) {
 837                                         acl_free(np->acl);
 838                                         np->acl = NULL;
 839                                 }
 840 #endif // __APPLE__
 841                                 if (S_ISCHR(sp->st_mode) ||
 842                                     S_ISBLK(sp->st_mode))
 843                                         bcfile = 1;
 844
 845                                 if (f_flags) {
 846                                         np->flags = &np->data[ulen + glen + 2];
 847                                         (void)strcpy(np->flags, flags);
 848                                         free(flags);
 849                                 }
 850                                 cur->fts_pointer = np;
 851                         }
 852                 }
 853                 ++entries;
 854         }
 855
 856         if (!entries)
 857                 return;
 858
 859         d.list = list;
 860         d.entries = entries;
 861         d.maxlen = maxlen;
 862         if (needstats) {
 863                 d.bcfile = bcfile;
 864                 d.btotal = btotal;
 865                 (void)snprintf(buf, sizeof(buf), "%qu", (u_int64_t)maxblock);
 866                 d.s_block = strlen(buf);
 867                 d.s_flags = maxflags;
 868                 d.s_lattr = maxlattr;
 869                 d.s_group = maxgroup;
 870 #if _DARWIN_FEATURE_64_BIT_INODE
 871                 (void)snprintf(buf, sizeof(buf), "%llu", maxinode);
 872 #else
 873                 (void)snprintf(buf, sizeof(buf), "%lu", maxinode);
 874 #endif
 875                 d.s_inode = strlen(buf);
 876                 (void)snprintf(buf, sizeof(buf), "%lu", maxnlink);
 877                 d.s_nlink = strlen(buf);
 878                 (void)snprintf(buf, sizeof(buf), "%qu", (u_int64_t)maxsize);
 879                 d.s_size = strlen(buf);
 880                 d.s_user = maxuser;
 881         }
 882         printfcn(&d);
 883         output = 1;
 884
 885         if (f_longform) {
 886                 for (cur = list; cur; cur = cur->fts_link) {
 887                         np = cur->fts_pointer;
 888                         if (np) {
 889                                 if (np->acl) {
 890                                         acl_free(np->acl);
 891                                 }
 892                                 free(np->xattr_names);
 893                                 free(np->xattr_sizes);
 894                                 free(np);
 895                                 cur->fts_pointer = NULL;
 896                         }
 897                 }
 898         }
 899 }
 900
 901 /*
 902  * Ordering for mastercmp:
 903  * If ordering the argv (fts_level = FTS_ROOTLEVEL) return non-directories
 904  * as larger than directories.  Within either group, use the sort function.
 905  * All other levels use the sort function.  Error entries remain unsorted.
 906  */
 907 static int
 908 mastercmp(const FTSENT **a, const FTSENT **b)
 909 {
 910         int a_info, b_info;
 911
 912         a_info = (*a)->fts_info;
 913         if (a_info == FTS_ERR)
 914                 return (0);
 915         b_info = (*b)->fts_info;
 916         if (b_info == FTS_ERR)
 917                 return (0);
 918
 919         if (a_info == FTS_NS || b_info == FTS_NS)
 920                 return (namecmp(*a, *b));
 921
 922         if (a_info != b_info &&
 923             (*a)->fts_level == FTS_ROOTLEVEL && !f_listdir) {
 924                 if (a_info == FTS_D)
 925                         return (1);
 926                 if (b_info == FTS_D)
 927                         return (-1);
 928         }
 929         return (sortfcn(*a, *b));
 930 }
 931
 932 /*
 933  * Makenines() returns (10**n)-1.  This is useful for converting a width
 934  * into a number that wide in decimal.
 935  */
 936 static u_quad_t
 937 makenines(u_quad_t n)
 938 {
 939         u_long i;
 940         u_quad_t reg;
 941
 942         reg = 1;
 943         /* Use a loop instead of pow(), since all values of n are small. */
 944         for (i = 0; i < n; i++)
 945                 reg *= 10;
 946         reg--;
 947
 948         return reg;
 949 }