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 * @(#) Copyright (c) 1989, 1993, 1994 The Regents of the University of California. All rights reserved. 37 * @(#)ls.c 8.5 (Berkeley) 4/2/94 38 * $FreeBSD: src/bin/ls/ls.c,v 1.32.2.8 2002/11/17 10:27:34 tjr Exp $ 39 * $DragonFly: src/bin/ls/ls.c,v 1.7 2005/09/17 07:08:43 dillon Exp $ 40 */ 41 42 #include <sys/types.h> 43 #include <sys/stat.h> 44 #include <sys/ioctl.h> 45 46 #include <dirent.h> 47 #include <err.h> 48 #include <errno.h> 49 #include <fts.h> 50 #include <grp.h> 51 #include <limits.h> 52 #include <locale.h> 53 #include <pwd.h> 54 #include <stdio.h> 55 #include <stdlib.h> 56 #include <string.h> 57 #include <unistd.h> 58 #ifdef COLORLS 59 #include <termcap.h> 60 #include <signal.h> 61 #endif 62 63 #include "ls.h" 64 #include "extern.h" 65 66 /* 67 * Upward approximation of the maximum number of characters needed to 68 * represent a value of integral type t as a string, excluding the 69 * NUL terminator, with provision for a sign. 70 */ 71 #define STRBUF_SIZEOF(t) (1 + CHAR_BIT * sizeof(t) / 3 + 1) 72 73 static void display(FTSENT *, FTSENT *); 74 static u_quad_t makenines(u_long); 75 static int mastercmp(const FTSENT **, const FTSENT **); 76 static void traverse(int, char **, int); 77 78 static void (*printfcn)(DISPLAY *); 79 static int (*sortfcn)(const FTSENT *, const FTSENT *); 80 81 long blocksize; /* block size units */ 82 int termwidth = 80; /* default terminal width */ 83 84 /* flags */ 85 int f_accesstime; /* use time of last access */ 86 int f_flags; /* show flags associated with a file */ 87 int f_fsmid; /* show FSMID associated with a file */ 88 int f_humanval; /* show human-readable file sizes */ 89 int f_inode; /* print inode */ 90 static int f_kblocks; /* print size in kilobytes */ 91 static int f_listdir; /* list actual directory, not contents */ 92 static int f_listdot; /* list files beginning with . */ 93 int f_longform; /* long listing format */ 94 int f_nonprint; /* show unprintables as ? */ 95 static int f_nosort; /* don't sort output */ 96 int f_notabs; /* don't use tab-separated multi-col output */ 97 static int f_numericonly; /* don't convert uid/gid to name */ 98 int f_octal; /* show unprintables as \xxx */ 99 int f_octal_escape; /* like f_octal but use C escapes if possible */ 100 static int f_recursive; /* ls subdirectories also */ 101 static int f_reversesort; /* reverse whatever sort is used */ 102 int f_sectime; /* print the real time for all files */ 103 static int f_singlecol; /* use single column output */ 104 int f_size; /* list size in short listing */ 105 int f_slash; /* similar to f_type, but only for dirs */ 106 int f_sortacross; /* sort across rows, not down columns */ 107 int f_statustime; /* use time of last mode change */ 108 static int f_stream; /* stream the output, separate with commas */ 109 static int f_timesort; /* sort by time vice name */ 110 int f_type; /* add type character for non-regular files */ 111 static int f_whiteout; /* show whiteout entries */ 112 #ifdef COLORLS 113 int f_color; /* add type in color for non-regular files */ 114 115 char *ansi_bgcol; /* ANSI sequence to set background colour */ 116 char *ansi_fgcol; /* ANSI sequence to set foreground colour */ 117 char *ansi_coloff; /* ANSI sequence to reset colours */ 118 char *attrs_off; /* ANSI sequence to turn off attributes */ 119 char *enter_bold; /* ANSI sequence to set color to bold mode */ 120 #endif 121 122 static int rval; 123 124 int 125 main(int argc, char *argv[]) 126 { 127 static char dot[] = ".", *dotav[] = {dot, NULL}; 128 struct winsize win; 129 int ch, fts_options, notused; 130 char *p; 131 #ifdef COLORLS 132 char termcapbuf[1024]; /* termcap definition buffer */ 133 char tcapbuf[512]; /* capability buffer */ 134 char *bp = tcapbuf; 135 #endif 136 137 setlocale(LC_ALL, ""); 138 139 /* Terminal defaults to -Cq, non-terminal defaults to -1. */ 140 if (isatty(STDOUT_FILENO)) { 141 termwidth = 80; 142 if ((p = getenv("COLUMNS")) != NULL && *p != '\0') 143 termwidth = atoi(p); 144 else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) != -1 && 145 win.ws_col > 0) 146 termwidth = win.ws_col; 147 f_nonprint = 1; 148 } else { 149 f_singlecol = 1; 150 /* retrieve environment variable, in case of explicit -C */ 151 p = getenv("COLUMNS"); 152 if (p) 153 termwidth = atoi(p); 154 } 155 156 /* Root is -A automatically. */ 157 if (!getuid()) 158 f_listdot = 1; 159 160 fts_options = FTS_PHYSICAL; 161 while ((ch = getopt(argc, argv, "1ABCFGHLPRTWabcdfghiklmnopqrstuwxy")) 162 != -1) { 163 switch (ch) { 164 /* 165 * The -1, -C, -x and -l options all override each other so 166 * shell aliasing works right. 167 */ 168 case '1': 169 f_singlecol = 1; 170 f_longform = 0; 171 f_stream = 0; 172 break; 173 case 'B': 174 f_nonprint = 0; 175 f_octal = 1; 176 f_octal_escape = 0; 177 break; 178 case 'C': 179 f_sortacross = f_longform = f_singlecol = 0; 180 break; 181 case 'l': 182 f_longform = 1; 183 f_singlecol = 0; 184 f_stream = 0; 185 break; 186 case 'x': 187 f_sortacross = 1; 188 f_longform = 0; 189 f_singlecol = 0; 190 break; 191 case 'y': 192 #ifdef _ST_FSMID_PRESENT_ 193 f_fsmid = 1; 194 #endif 195 break; 196 /* The -c and -u options override each other. */ 197 case 'c': 198 f_statustime = 1; 199 f_accesstime = 0; 200 break; 201 case 'u': 202 f_accesstime = 1; 203 f_statustime = 0; 204 break; 205 case 'F': 206 f_type = 1; 207 f_slash = 0; 208 break; 209 case 'H': 210 fts_options |= FTS_COMFOLLOW; 211 break; 212 case 'G': 213 setenv("CLICOLOR", "", 1); 214 break; 215 case 'L': 216 fts_options &= ~FTS_PHYSICAL; 217 fts_options |= FTS_LOGICAL; 218 break; 219 case 'P': 220 fts_options &= ~FTS_COMFOLLOW; 221 fts_options &= ~FTS_LOGICAL; 222 fts_options |= FTS_PHYSICAL; 223 break; 224 case 'R': 225 f_recursive = 1; 226 break; 227 case 'a': 228 fts_options |= FTS_SEEDOT; 229 /* FALLTHROUGH */ 230 case 'A': 231 f_listdot = 1; 232 break; 233 /* The -d option turns off the -R option. */ 234 case 'd': 235 f_listdir = 1; 236 f_recursive = 0; 237 break; 238 case 'f': 239 f_nosort = 1; 240 break; 241 case 'g': /* Compatibility with 4.3BSD. */ 242 break; 243 case 'h': 244 f_humanval = 1; 245 break; 246 case 'i': 247 f_inode = 1; 248 break; 249 case 'k': 250 f_kblocks = 1; 251 break; 252 case 'm': 253 f_stream = 1; 254 f_singlecol = 0; 255 f_longform = 0; 256 break; 257 case 'n': 258 f_numericonly = 1; 259 break; 260 case 'o': 261 f_flags = 1; 262 break; 263 case 'p': 264 f_slash = 1; 265 f_type = 1; 266 break; 267 case 'q': 268 f_nonprint = 1; 269 f_octal = 0; 270 f_octal_escape = 0; 271 break; 272 case 'r': 273 f_reversesort = 1; 274 break; 275 case 's': 276 f_size = 1; 277 break; 278 case 'T': 279 f_sectime = 1; 280 break; 281 case 't': 282 f_timesort = 1; 283 break; 284 case 'W': 285 f_whiteout = 1; 286 break; 287 case 'b': 288 f_nonprint = 0; 289 f_octal = 0; 290 f_octal_escape = 1; 291 break; 292 case 'w': 293 f_nonprint = 0; 294 f_octal = 0; 295 f_octal_escape = 0; 296 break; 297 default: 298 case '?': 299 usage(); 300 } 301 } 302 argc -= optind; 303 argv += optind; 304 305 /* Enabling of colours is conditional on the environment. */ 306 if (getenv("CLICOLOR") && 307 (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE"))) 308 #ifdef COLORLS 309 if (tgetent(termcapbuf, getenv("TERM")) == 1) { 310 ansi_fgcol = tgetstr("AF", &bp); 311 ansi_bgcol = tgetstr("AB", &bp); 312 attrs_off = tgetstr("me", &bp); 313 enter_bold = tgetstr("md", &bp); 314 315 /* To switch colours off use 'op' if 316 * available, otherwise use 'oc', or 317 * don't do colours at all. */ 318 ansi_coloff = tgetstr("op", &bp); 319 if (!ansi_coloff) 320 ansi_coloff = tgetstr("oc", &bp); 321 if (ansi_fgcol && ansi_bgcol && ansi_coloff) 322 f_color = 1; 323 } 324 #else 325 fprintf(stderr, "Color support not compiled in.\n"); 326 #endif /*COLORLS*/ 327 328 #ifdef COLORLS 329 if (f_color) { 330 /* 331 * We can't put tabs and color sequences together: 332 * column number will be incremented incorrectly 333 * for "stty oxtabs" mode. 334 */ 335 f_notabs = 1; 336 signal(SIGINT, colorquit); 337 signal(SIGQUIT, colorquit); 338 parsecolors(getenv("LSCOLORS")); 339 } 340 #endif 341 342 /* 343 * If not -F, -i, -l, -s or -t options, don't require stat 344 * information, unless in color mode in which case we do 345 * need this to determine which colors to display. 346 */ 347 if (!f_inode && !f_longform && !f_size && !f_timesort && !f_type 348 #ifdef COLORLS 349 && !f_color 350 #endif 351 ) 352 fts_options |= FTS_NOSTAT; 353 354 /* 355 * If not -F, -d or -l options, follow any symbolic links listed on 356 * the command line. 357 */ 358 if (!f_longform && !f_listdir && !f_type) 359 fts_options |= FTS_COMFOLLOW; 360 361 /* 362 * If -W, show whiteout entries 363 */ 364 #ifdef FTS_WHITEOUT 365 if (f_whiteout) 366 fts_options |= FTS_WHITEOUT; 367 #endif 368 369 /* If -l or -s, figure out block size. */ 370 if (f_longform || f_size) { 371 if (f_kblocks) 372 blocksize = 2; 373 else { 374 getbsize(¬used, &blocksize); 375 blocksize /= 512; 376 } 377 } 378 /* Select a sort function. */ 379 if (f_reversesort) { 380 if (!f_timesort) 381 sortfcn = revnamecmp; 382 else if (f_accesstime) 383 sortfcn = revacccmp; 384 else if (f_statustime) 385 sortfcn = revstatcmp; 386 else /* Use modification time. */ 387 sortfcn = revmodcmp; 388 } else { 389 if (!f_timesort) 390 sortfcn = namecmp; 391 else if (f_accesstime) 392 sortfcn = acccmp; 393 else if (f_statustime) 394 sortfcn = statcmp; 395 else /* Use modification time. */ 396 sortfcn = modcmp; 397 } 398 399 /* Select a print function. */ 400 if (f_singlecol) 401 printfcn = printscol; 402 else if (f_longform) 403 printfcn = printlong; 404 else if (f_stream) 405 printfcn = printstream; 406 else 407 printfcn = printcol; 408 409 if (argc) 410 traverse(argc, argv, fts_options); 411 else 412 traverse(1, dotav, fts_options); 413 exit(rval); 414 } 415 416 static int output; /* If anything output. */ 417 418 /* 419 * Traverse() walks the logical directory structure specified by the argv list 420 * in the order specified by the mastercmp() comparison function. During the 421 * traversal it passes linked lists of structures to display() which represent 422 * a superset (may be exact set) of the files to be displayed. 423 */ 424 static void 425 traverse(int argc, char *argv[], int options) 426 { 427 FTS *ftsp; 428 FTSENT *p, *chp; 429 int ch_options; 430 431 if ((ftsp = 432 fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL) 433 err(1, NULL); 434 435 display(NULL, fts_children(ftsp, 0)); 436 if (f_listdir) 437 return; 438 439 /* 440 * If not recursing down this tree and don't need stat info, just get 441 * the names. 442 */ 443 ch_options = !f_recursive && options & FTS_NOSTAT ? FTS_NAMEONLY : 0; 444 445 while ((p = fts_read(ftsp)) != NULL) 446 switch (p->fts_info) { 447 case FTS_DC: 448 warnx("%s: directory causes a cycle", p->fts_name); 449 break; 450 case FTS_DNR: 451 case FTS_ERR: 452 warnx("%s: %s", p->fts_name, strerror(p->fts_errno)); 453 rval = 1; 454 break; 455 case FTS_D: 456 if (p->fts_level != FTS_ROOTLEVEL && 457 p->fts_name[0] == '.' && !f_listdot) 458 break; 459 460 /* 461 * If already output something, put out a newline as 462 * a separator. If multiple arguments, precede each 463 * directory with its name. 464 */ 465 if (output) { 466 putchar('\n'); 467 printname(p->fts_path); 468 puts(":"); 469 } else if (argc > 1) { 470 printname(p->fts_path); 471 puts(":"); 472 output = 1; 473 } 474 chp = fts_children(ftsp, ch_options); 475 display(p, chp); 476 477 if (!f_recursive && chp != NULL) 478 fts_set(ftsp, p, FTS_SKIP); 479 break; 480 default: 481 break; 482 } 483 if (errno) 484 err(1, "fts_read"); 485 } 486 487 /* 488 * Display() takes a linked list of FTSENT structures and passes the list 489 * along with any other necessary information to the print function. P 490 * points to the parent directory of the display list. 491 */ 492 static void 493 display(FTSENT *p, FTSENT *list) 494 { 495 struct stat *sp; 496 DISPLAY d; 497 FTSENT *cur; 498 NAMES *np; 499 off_t maxsize; 500 u_long btotal, maxblock, maxinode, maxlen, maxnlink; 501 int bcfile, maxflags; 502 gid_t maxgroup; 503 uid_t maxuser; 504 size_t fsmidlen, flen, ulen, glen; 505 char *initmax; 506 int entries, needstats; 507 const char *user, *group; 508 char *flags; 509 int64_t fsmid; 510 char buf[STRBUF_SIZEOF(u_quad_t) + 1]; 511 char ngroup[STRBUF_SIZEOF(uid_t) + 1]; 512 char nuser[STRBUF_SIZEOF(gid_t) + 1]; 513 514 /* 515 * If list is NULL there are two possibilities: that the parent 516 * directory p has no children, or that fts_children() returned an 517 * error. We ignore the error case since it will be replicated 518 * on the next call to fts_read() on the post-order visit to the 519 * directory p, and will be signaled in traverse(). 520 */ 521 if (list == NULL) 522 return; 523 524 needstats = f_inode || f_longform || f_size; 525 flen = 0; 526 btotal = 0; 527 initmax = getenv("LS_COLWIDTHS"); 528 /* Fields match -lios order. New ones should be added at the end. */ 529 maxblock = maxinode = maxlen = maxnlink = 530 maxuser = maxgroup = maxflags = maxsize = 0; 531 if (initmax != NULL && *initmax != '\0') { 532 char *initmax2, *jinitmax; 533 int ninitmax; 534 535 /* Fill-in "::" as "0:0:0" for the sake of scanf. */ 536 jinitmax = initmax2 = malloc(strlen(initmax) * 2 + 2); 537 if (jinitmax == NULL) 538 err(1, NULL); 539 if (*initmax == ':') 540 strcpy(initmax2, "0:"), initmax2 += 2; 541 else 542 *initmax2++ = *initmax, *initmax2 = '\0'; 543 for (initmax++; *initmax != '\0'; initmax++) { 544 if (initmax[-1] == ':' && initmax[0] == ':') { 545 *initmax2++ = '0'; 546 *initmax2++ = initmax[0]; 547 initmax2[1] = '\0'; 548 } else { 549 *initmax2++ = initmax[0]; 550 initmax2[1] = '\0'; 551 } 552 } 553 if (initmax2[-1] == ':') 554 strcpy(initmax2, "0"); 555 556 ninitmax = sscanf(jinitmax, 557 " %lu : %lu : %lu : %i : %i : %i : %llu : %lu ", 558 &maxinode, &maxblock, &maxnlink, &maxuser, 559 &maxgroup, &maxflags, &maxsize, &maxlen); 560 f_notabs = 1; 561 switch (ninitmax) { 562 case 0: 563 maxinode = 0; 564 /* fall through */ 565 case 1: 566 maxblock = 0; 567 /* fall through */ 568 case 2: 569 maxnlink = 0; 570 /* fall through */ 571 case 3: 572 maxuser = 0; 573 /* fall through */ 574 case 4: 575 maxgroup = 0; 576 /* fall through */ 577 case 5: 578 maxflags = 0; 579 /* fall through */ 580 case 6: 581 maxsize = 0; 582 /* fall through */ 583 case 7: 584 maxlen = 0; 585 /* fall through */ 586 #ifdef COLORLS 587 if (!f_color) 588 #endif 589 f_notabs = 0; 590 /* fall through */ 591 default: 592 break; 593 } 594 maxinode = makenines(maxinode); 595 maxblock = makenines(maxblock); 596 maxnlink = makenines(maxnlink); 597 maxsize = makenines(maxsize); 598 free(jinitmax); 599 } 600 bcfile = 0; 601 flags = NULL; 602 for (cur = list, entries = 0; cur; cur = cur->fts_link) { 603 if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) { 604 warnx("%s: %s", 605 cur->fts_name, strerror(cur->fts_errno)); 606 cur->fts_number = NO_PRINT; 607 rval = 1; 608 continue; 609 } 610 /* 611 * P is NULL if list is the argv list, to which different rules 612 * apply. 613 */ 614 if (p == NULL) { 615 /* Directories will be displayed later. */ 616 if (cur->fts_info == FTS_D && !f_listdir) { 617 cur->fts_number = NO_PRINT; 618 continue; 619 } 620 } else { 621 /* Only display dot file if -a/-A set. */ 622 if (cur->fts_name[0] == '.' && !f_listdot) { 623 cur->fts_number = NO_PRINT; 624 continue; 625 } 626 } 627 if (cur->fts_namelen > maxlen) 628 maxlen = cur->fts_namelen; 629 if (f_octal || f_octal_escape) { 630 u_long t = len_octal(cur->fts_name, cur->fts_namelen); 631 632 if (t > maxlen) 633 maxlen = t; 634 } 635 if (needstats) { 636 sp = cur->fts_statp; 637 if (sp->st_blocks > maxblock) 638 maxblock = sp->st_blocks; 639 if (sp->st_ino > maxinode) 640 maxinode = sp->st_ino; 641 if (sp->st_nlink > maxnlink) 642 maxnlink = sp->st_nlink; 643 if (sp->st_size > maxsize) 644 maxsize = sp->st_size; 645 646 btotal += sp->st_blocks; 647 if (f_longform) { 648 if (f_numericonly) { 649 snprintf(nuser, sizeof(nuser), 650 "%u", sp->st_uid); 651 snprintf(ngroup, sizeof(ngroup), 652 "%u", sp->st_gid); 653 user = nuser; 654 group = ngroup; 655 } else { 656 user = user_from_uid(sp->st_uid, 0); 657 group = group_from_gid(sp->st_gid, 0); 658 } 659 if ((ulen = strlen(user)) > maxuser) 660 maxuser = ulen; 661 if ((glen = strlen(group)) > maxgroup) 662 maxgroup = glen; 663 if (f_flags) { 664 flags = fflagstostr(sp->st_flags); 665 if (flags != NULL && *flags == '\0') { 666 free(flags); 667 flags = strdup("-"); 668 } 669 if (flags == NULL) 670 err(1, NULL); 671 flen = strlen(flags); 672 if (flen > (size_t)maxflags) 673 maxflags = flen; 674 } else { 675 flen = 0; 676 } 677 #ifdef _ST_FSMID_PRESENT_ 678 if (f_fsmid) { 679 fsmid = sp->st_fsmid; 680 fsmidlen = 18; 681 } else { 682 fsmid = 0; 683 fsmidlen = 0; 684 } 685 #else 686 fsmidlen = 0; 687 #endif 688 689 if ((np = malloc(sizeof(NAMES) + 690 ulen + glen + flen + fsmidlen + 4)) == NULL) 691 err(1, NULL); 692 693 np->user = &np->data[0]; 694 strcpy(np->user, user); 695 np->group = &np->data[ulen + 1]; 696 strcpy(np->group, group); 697 698 if (S_ISCHR(sp->st_mode) || 699 S_ISBLK(sp->st_mode)) 700 bcfile = 1; 701 702 if (f_flags) { 703 np->flags = &np->data[ulen + glen + 2]; 704 strcpy(np->flags, flags); 705 free(flags); 706 } 707 #ifdef _ST_FSMID_PRESENT_ 708 if (f_fsmid) { 709 np->fsmid = np->data + ulen + glen + flen + 3; 710 snprintf(np->fsmid, fsmidlen + 1, 711 "%016llx", fsmid); 712 } 713 #endif 714 cur->fts_pointer = np; 715 } 716 } 717 ++entries; 718 } 719 720 if (!entries) 721 return; 722 723 d.list = list; 724 d.entries = entries; 725 d.maxlen = maxlen; 726 if (needstats) { 727 d.bcfile = bcfile; 728 d.btotal = btotal; 729 snprintf(buf, sizeof(buf), "%lu", maxblock); 730 d.s_block = strlen(buf); 731 d.s_flags = maxflags; 732 d.s_group = maxgroup; 733 snprintf(buf, sizeof(buf), "%lu", maxinode); 734 d.s_inode = strlen(buf); 735 snprintf(buf, sizeof(buf), "%lu", maxnlink); 736 d.s_nlink = strlen(buf); 737 snprintf(buf, sizeof(buf), "%llu", maxsize); 738 d.s_size = strlen(buf); 739 d.s_user = maxuser; 740 } 741 printfcn(&d); 742 output = 1; 743 744 if (f_longform) 745 for (cur = list; cur; cur = cur->fts_link) 746 free(cur->fts_pointer); 747 } 748 749 /* 750 * Ordering for mastercmp: 751 * If ordering the argv (fts_level = FTS_ROOTLEVEL) return non-directories 752 * as larger than directories. Within either group, use the sort function. 753 * All other levels use the sort function. Error entries remain unsorted. 754 */ 755 static int 756 mastercmp(const FTSENT **a, const FTSENT **b) 757 { 758 int a_info, b_info; 759 760 a_info = (*a)->fts_info; 761 if (a_info == FTS_ERR) 762 return (0); 763 b_info = (*b)->fts_info; 764 if (b_info == FTS_ERR) 765 return (0); 766 767 if (a_info == FTS_NS || b_info == FTS_NS) 768 return (namecmp(*a, *b)); 769 770 if (a_info != b_info && 771 (*a)->fts_level == FTS_ROOTLEVEL && !f_listdir) { 772 if (a_info == FTS_D) 773 return (1); 774 if (b_info == FTS_D) 775 return (-1); 776 } 777 return (sortfcn(*a, *b)); 778 } 779 780 /* 781 * Makenines() returns (10**n)-1. This is useful for converting a width 782 * into a number that wide in decimal. 783 */ 784 static u_quad_t 785 makenines(u_long n) 786 { 787 u_long i; 788 u_quad_t reg; 789 790 reg = 1; 791 /* Use a loop instead of pow(), since all values of n are small. */ 792 for (i = 0; i < n; i++) 793 reg *= 10; 794 reg--; 795 796 return reg; 797 } 798