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 * 4. 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 * $DragonFly: src/bin/ls/ls.c,v 1.15 2006/01/12 13:43:10 corecode Exp $ 36 */ 37 38 #include <sys/types.h> 39 #include <sys/stat.h> 40 #include <sys/ioctl.h> 41 42 #include <dirent.h> 43 #include <err.h> 44 #include <errno.h> 45 #include <fts.h> 46 #include <grp.h> 47 #include <inttypes.h> 48 #include <limits.h> 49 #include <locale.h> 50 #include <pwd.h> 51 #include <stdio.h> 52 #include <stdlib.h> 53 #include <string.h> 54 #include <unistd.h> 55 #ifdef COLORLS 56 #include <termcap.h> 57 #include <signal.h> 58 #endif 59 60 #include "ls.h" 61 #include "extern.h" 62 63 /* 64 * Upward approximation of the maximum number of characters needed to 65 * represent a value of integral type t as a string, excluding the 66 * NUL terminator, with provision for a sign. 67 */ 68 #define STRBUF_SIZEOF(t) (1 + CHAR_BIT * sizeof(t) / 3 + 1) 69 70 /* 71 * MAKENINES(n) turns n into (10**n)-1. This is useful for converting a width 72 * into a number that wide in decimal. 73 * XXX: Overflows are not considered. 74 */ 75 #define MAKENINES(n) \ 76 do { \ 77 intmax_t i; \ 78 \ 79 /* Use a loop as all values of n are small. */ \ 80 for (i = 1; n > 0; i *= 10) \ 81 n--; \ 82 n = i - 1; \ 83 } while(0) 84 85 static void display(const FTSENT *, FTSENT *); 86 static int mastercmp(const FTSENT **, const FTSENT **); 87 static void traverse(int, char **, int); 88 89 static void (*printfcn)(const DISPLAY *); 90 static int (*sortfcn)(const FTSENT *, const FTSENT *); 91 92 long blocksize; /* block size units */ 93 int termwidth = 80; /* default terminal width */ 94 95 /* flags */ 96 int f_accesstime; /* use time of last access */ 97 int f_flags; /* show flags associated with a file */ 98 int f_fsmid; /* show FSMID associated with a file */ 99 int f_humanval; /* show human-readable file sizes */ 100 int f_inode; /* print inode */ 101 static int f_kblocks; /* print size in kilobytes */ 102 static int f_listdir; /* list actual directory, not contents */ 103 static int f_listdot; /* list files beginning with . */ 104 int f_longform; /* long listing format */ 105 int f_nonprint; /* show unprintables as ? */ 106 static int f_nosort; /* don't sort output */ 107 int f_notabs; /* don't use tab-separated multi-col output */ 108 static int f_numericonly; /* don't convert uid/gid to name */ 109 int f_octal; /* show unprintables as \xxx */ 110 int f_octal_escape; /* like f_octal but use C escapes if possible */ 111 static int f_recursive; /* ls subdirectories also */ 112 static int f_reversesort; /* reverse whatever sort is used */ 113 int f_sectime; /* print the real time for all files */ 114 static int f_singlecol; /* use single column output */ 115 int f_size; /* list size in short listing */ 116 int f_slash; /* similar to f_type, but only for dirs */ 117 int f_sortacross; /* sort across rows, not down columns */ 118 int f_statustime; /* use time of last mode change */ 119 static int f_stream; /* stream the output, separate with commas */ 120 static int f_timesort; /* sort by time vice name */ 121 int f_type; /* add type character for non-regular files */ 122 static int f_whiteout; /* show whiteout entries */ 123 #ifdef COLORLS 124 int f_color; /* add type in color for non-regular files */ 125 126 char *ansi_bgcol; /* ANSI sequence to set background colour */ 127 char *ansi_fgcol; /* ANSI sequence to set foreground colour */ 128 char *ansi_coloff; /* ANSI sequence to reset colours */ 129 char *attrs_off; /* ANSI sequence to turn off attributes */ 130 char *enter_bold; /* ANSI sequence to set color to bold mode */ 131 #endif 132 133 static int rval; 134 135 int 136 main(int argc, char *argv[]) 137 { 138 static char dot[] = ".", *dotav[] = {dot, NULL}; 139 struct winsize win; 140 int ch, fts_options, notused; 141 char *p; 142 #ifdef COLORLS 143 char termcapbuf[1024]; /* termcap definition buffer */ 144 char tcapbuf[512]; /* capability buffer */ 145 char *bp = tcapbuf; 146 #endif 147 148 setlocale(LC_ALL, ""); 149 150 /* Terminal defaults to -Cq, non-terminal defaults to -1. */ 151 if (isatty(STDOUT_FILENO)) { 152 termwidth = 80; 153 if ((p = getenv("COLUMNS")) != NULL && *p != '\0') 154 termwidth = atoi(p); 155 else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) != -1 && 156 win.ws_col > 0) 157 termwidth = win.ws_col; 158 f_nonprint = 1; 159 } else { 160 f_singlecol = 1; 161 /* retrieve environment variable, in case of explicit -C */ 162 p = getenv("COLUMNS"); 163 if (p) 164 termwidth = atoi(p); 165 } 166 167 /* Root is -A automatically. */ 168 if (!getuid()) 169 f_listdot = 1; 170 171 fts_options = FTS_PHYSICAL; 172 while ((ch = getopt(argc, argv, "1ABCFGHLPRTWabcdfghiklmnopqrstuwxy")) 173 != -1) { 174 switch (ch) { 175 /* 176 * The -1, -C, -x and -l options all override each other so 177 * shell aliasing works right. 178 */ 179 case '1': 180 f_singlecol = 1; 181 f_longform = 0; 182 f_stream = 0; 183 break; 184 case 'B': 185 f_nonprint = 0; 186 f_octal = 1; 187 f_octal_escape = 0; 188 break; 189 case 'C': 190 f_sortacross = f_longform = f_singlecol = 0; 191 break; 192 case 'l': 193 f_longform = 1; 194 f_singlecol = 0; 195 f_stream = 0; 196 break; 197 case 'x': 198 f_sortacross = 1; 199 f_longform = 0; 200 f_singlecol = 0; 201 break; 202 case 'y': 203 #ifdef _ST_FSMID_PRESENT_ 204 f_fsmid = 1; 205 #endif 206 break; 207 /* The -c and -u options override each other. */ 208 case 'c': 209 f_statustime = 1; 210 f_accesstime = 0; 211 break; 212 case 'u': 213 f_accesstime = 1; 214 f_statustime = 0; 215 break; 216 case 'F': 217 f_type = 1; 218 f_slash = 0; 219 break; 220 case 'H': 221 fts_options |= FTS_COMFOLLOW; 222 break; 223 case 'G': 224 if (setenv("CLICOLOR", "", 1) != 0) 225 warn("setenv: cannot set CLICOLOR"); 226 break; 227 case 'L': 228 fts_options &= ~FTS_PHYSICAL; 229 fts_options |= FTS_LOGICAL; 230 break; 231 case 'P': 232 fts_options &= ~FTS_COMFOLLOW; 233 fts_options &= ~FTS_LOGICAL; 234 fts_options |= FTS_PHYSICAL; 235 break; 236 case 'R': 237 f_recursive = 1; 238 break; 239 case 'a': 240 fts_options |= FTS_SEEDOT; 241 /* FALLTHROUGH */ 242 case 'A': 243 f_listdot = 1; 244 break; 245 /* The -d option turns off the -R option. */ 246 case 'd': 247 f_listdir = 1; 248 f_recursive = 0; 249 break; 250 case 'f': 251 f_nosort = 1; 252 break; 253 case 'g': /* Compatibility with 4.3BSD. */ 254 break; 255 case 'h': 256 f_humanval = 1; 257 break; 258 case 'i': 259 f_inode = 1; 260 break; 261 case 'k': 262 f_humanval = 0; 263 f_kblocks = 1; 264 break; 265 case 'm': 266 f_stream = 1; 267 f_singlecol = 0; 268 f_longform = 0; 269 break; 270 case 'n': 271 f_numericonly = 1; 272 break; 273 case 'o': 274 f_flags = 1; 275 break; 276 case 'p': 277 f_slash = 1; 278 f_type = 1; 279 break; 280 case 'q': 281 f_nonprint = 1; 282 f_octal = 0; 283 f_octal_escape = 0; 284 break; 285 case 'r': 286 f_reversesort = 1; 287 break; 288 case 's': 289 f_size = 1; 290 break; 291 case 'T': 292 f_sectime = 1; 293 break; 294 case 't': 295 f_timesort = 1; 296 break; 297 case 'W': 298 f_whiteout = 1; 299 break; 300 case 'b': 301 f_nonprint = 0; 302 f_octal = 0; 303 f_octal_escape = 1; 304 break; 305 case 'w': 306 f_nonprint = 0; 307 f_octal = 0; 308 f_octal_escape = 0; 309 break; 310 default: 311 case '?': 312 usage(); 313 } 314 } 315 argc -= optind; 316 argv += optind; 317 318 /* Enabling of colours is conditional on the environment. */ 319 if (getenv("CLICOLOR") && 320 (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE"))) 321 #ifdef COLORLS 322 if (tgetent(termcapbuf, getenv("TERM")) == 1) { 323 ansi_fgcol = tgetstr("AF", &bp); 324 ansi_bgcol = tgetstr("AB", &bp); 325 attrs_off = tgetstr("me", &bp); 326 enter_bold = tgetstr("md", &bp); 327 328 /* To switch colours off use 'op' if 329 * available, otherwise use 'oc', or 330 * don't do colours at all. */ 331 ansi_coloff = tgetstr("op", &bp); 332 if (!ansi_coloff) 333 ansi_coloff = tgetstr("oc", &bp); 334 if (ansi_fgcol && ansi_bgcol && ansi_coloff) 335 f_color = 1; 336 } 337 #else 338 fprintf(stderr, "Color support not compiled in.\n"); 339 #endif /*COLORLS*/ 340 341 #ifdef COLORLS 342 if (f_color) { 343 /* 344 * We can't put tabs and color sequences together: 345 * column number will be incremented incorrectly 346 * for "stty oxtabs" mode. 347 */ 348 f_notabs = 1; 349 signal(SIGINT, colorquit); 350 signal(SIGQUIT, colorquit); 351 parsecolors(getenv("LSCOLORS")); 352 } 353 #endif 354 355 /* 356 * If not -F, -i, -l, -s or -t options, don't require stat 357 * information, unless in color mode in which case we do 358 * need this to determine which colors to display. 359 */ 360 if (!f_inode && !f_longform && !f_size && !f_timesort && !f_type 361 #ifdef COLORLS 362 && !f_color 363 #endif 364 ) 365 fts_options |= FTS_NOSTAT; 366 367 /* 368 * If not -F, -d or -l options, follow any symbolic links listed on 369 * the command line. 370 */ 371 if (!f_longform && !f_listdir && !f_type) 372 fts_options |= FTS_COMFOLLOW; 373 374 /* 375 * If -W, show whiteout entries 376 */ 377 #ifdef FTS_WHITEOUT 378 if (f_whiteout) 379 fts_options |= FTS_WHITEOUT; 380 #endif 381 382 /* If -l or -s, figure out block size. */ 383 if (f_longform || f_size) { 384 if (f_kblocks) 385 blocksize = 2; 386 else { 387 getbsize(¬used, &blocksize); 388 blocksize /= 512; 389 } 390 } 391 /* Select a sort function. */ 392 if (f_reversesort) { 393 if (!f_timesort) 394 sortfcn = revnamecmp; 395 else if (f_accesstime) 396 sortfcn = revacccmp; 397 else if (f_statustime) 398 sortfcn = revstatcmp; 399 else /* Use modification time. */ 400 sortfcn = revmodcmp; 401 } else { 402 if (!f_timesort) 403 sortfcn = namecmp; 404 else if (f_accesstime) 405 sortfcn = acccmp; 406 else if (f_statustime) 407 sortfcn = statcmp; 408 else /* Use modification time. */ 409 sortfcn = modcmp; 410 } 411 412 /* Select a print function. */ 413 if (f_singlecol) 414 printfcn = printscol; 415 else if (f_longform) 416 printfcn = printlong; 417 else if (f_stream) 418 printfcn = printstream; 419 else 420 printfcn = printcol; 421 422 if (argc) 423 traverse(argc, argv, fts_options); 424 else 425 traverse(1, dotav, fts_options); 426 exit(rval); 427 } 428 429 static int output; /* If anything output. */ 430 431 /* 432 * Traverse() walks the logical directory structure specified by the argv list 433 * in the order specified by the mastercmp() comparison function. During the 434 * traversal it passes linked lists of structures to display() which represent 435 * a superset (may be exact set) of the files to be displayed. 436 */ 437 static void 438 traverse(int argc, char *argv[], int options) 439 { 440 FTS *ftsp; 441 FTSENT *p, *chp; 442 int ch_options; 443 444 if ((ftsp = 445 fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL) 446 err(1, "fts_open"); 447 448 /* 449 * We ignore errors from fts_children here since they will be 450 * replicated and signalled on the next call to fts_read() below. 451 */ 452 chp = fts_children(ftsp, 0); 453 if (chp != NULL) 454 display(NULL, chp); 455 if (f_listdir) 456 return; 457 458 /* 459 * If not recursing down this tree and don't need stat info, just get 460 * the names. 461 */ 462 ch_options = !f_recursive && options & FTS_NOSTAT ? FTS_NAMEONLY : 0; 463 464 while ((p = fts_read(ftsp)) != NULL) 465 switch (p->fts_info) { 466 case FTS_DC: 467 warnx("%s: directory causes a cycle", p->fts_name); 468 break; 469 case FTS_DNR: 470 case FTS_ERR: 471 warnx("%s: %s", p->fts_name, strerror(p->fts_errno)); 472 rval = 1; 473 break; 474 case FTS_D: 475 if (p->fts_level != FTS_ROOTLEVEL && 476 p->fts_name[0] == '.' && !f_listdot) 477 break; 478 479 /* 480 * If already output something, put out a newline as 481 * a separator. If multiple arguments, precede each 482 * directory with its name. 483 */ 484 if (output) { 485 putchar('\n'); 486 printname(p->fts_path); 487 puts(":"); 488 } else if (argc > 1) { 489 printname(p->fts_path); 490 puts(":"); 491 output = 1; 492 } 493 chp = fts_children(ftsp, ch_options); 494 display(p, chp); 495 496 if (!f_recursive && chp != NULL) 497 fts_set(ftsp, p, FTS_SKIP); 498 break; 499 default: 500 break; 501 } 502 if (errno) 503 err(1, "fts_read"); 504 } 505 506 /* 507 * Display() takes a linked list of FTSENT structures and passes the list 508 * along with any other necessary information to the print function. P 509 * points to the parent directory of the display list. 510 */ 511 static void 512 display(const FTSENT *p, FTSENT *list) 513 { 514 struct stat *sp; 515 DISPLAY d; 516 FTSENT *cur; 517 NAMES *np; 518 off_t maxsize; 519 u_long btotal, maxlen; 520 int64_t maxblock; 521 ino_t maxinode; 522 nlink_t maxnlink; 523 int bcfile, maxflags; 524 gid_t maxgroup; 525 uid_t maxuser; 526 size_t fsmidlen, flen, ulen, glen; 527 char *initmax; 528 int entries, needstats; 529 const char *user, *group; 530 char *flags; 531 int64_t fsmid; 532 char buf[STRBUF_SIZEOF(u_quad_t) + 1]; 533 char ngroup[STRBUF_SIZEOF(uid_t) + 1]; 534 char nuser[STRBUF_SIZEOF(gid_t) + 1]; 535 536 needstats = f_inode || f_longform || f_size; 537 flen = 0; 538 btotal = 0; 539 initmax = getenv("LS_COLWIDTHS"); 540 /* Fields match -lios order. New ones should be added at the end. */ 541 maxblock = maxinode = maxlen = maxnlink = 542 maxuser = maxgroup = maxflags = maxsize = 0; 543 if (initmax != NULL && *initmax != '\0') { 544 char *initmax2, *jinitmax; 545 int ninitmax; 546 547 /* Fill-in "::" as "0:0:0" for the sake of scanf. */ 548 jinitmax = malloc(strlen(initmax) * 2 + 2); 549 if (jinitmax == NULL) 550 err(1, "malloc"); 551 initmax2 = jinitmax; 552 if (*initmax == ':') 553 strcpy(initmax2, "0:"), initmax2 += 2; 554 else 555 *initmax2++ = *initmax, *initmax2 = '\0'; 556 for (initmax++; *initmax != '\0'; initmax++) { 557 if (initmax[-1] == ':' && initmax[0] == ':') { 558 *initmax2++ = '0'; 559 *initmax2++ = initmax[0]; 560 initmax2[1] = '\0'; 561 } else { 562 *initmax2++ = initmax[0]; 563 initmax2[1] = '\0'; 564 } 565 } 566 if (initmax2[-1] == ':') 567 strcpy(initmax2, "0"); 568 569 ninitmax = sscanf(jinitmax, 570 " %llu : %lli : %u : %i : %i : %i : %llu : %lu ", 571 &maxinode, &maxblock, &maxnlink, &maxuser, 572 &maxgroup, &maxflags, &maxsize, &maxlen); 573 f_notabs = 1; 574 switch (ninitmax) { 575 case 0: 576 maxinode = 0; 577 /* FALLTHROUGH */ 578 case 1: 579 maxblock = 0; 580 /* FALLTHROUGH */ 581 case 2: 582 maxnlink = 0; 583 /* FALLTHROUGH */ 584 case 3: 585 maxuser = 0; 586 /* FALLTHROUGH */ 587 case 4: 588 maxgroup = 0; 589 /* FALLTHROUGH */ 590 case 5: 591 maxflags = 0; 592 /* FALLTHROUGH */ 593 case 6: 594 maxsize = 0; 595 /* FALLTHROUGH */ 596 case 7: 597 maxlen = 0; 598 /* FALLTHROUGH */ 599 #ifdef COLORLS 600 if (!f_color) 601 #endif 602 f_notabs = 0; 603 /* FALLTHROUGH */ 604 default: 605 break; 606 } 607 MAKENINES(maxinode); 608 MAKENINES(maxblock); 609 MAKENINES(maxnlink); 610 MAKENINES(maxsize); 611 free(jinitmax); 612 } 613 bcfile = 0; 614 flags = NULL; 615 for (cur = list, entries = 0; cur; cur = cur->fts_link) { 616 if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) { 617 warnx("%s: %s", 618 cur->fts_name, strerror(cur->fts_errno)); 619 cur->fts_number = NO_PRINT; 620 rval = 1; 621 continue; 622 } 623 /* 624 * P is NULL if list is the argv list, to which different rules 625 * apply. 626 */ 627 if (p == NULL) { 628 /* Directories will be displayed later. */ 629 if (cur->fts_info == FTS_D && !f_listdir) { 630 cur->fts_number = NO_PRINT; 631 continue; 632 } 633 } else { 634 /* Only display dot file if -a/-A set. */ 635 if (cur->fts_name[0] == '.' && !f_listdot) { 636 cur->fts_number = NO_PRINT; 637 continue; 638 } 639 } 640 if (cur->fts_namelen > maxlen) 641 maxlen = cur->fts_namelen; 642 if (f_octal || f_octal_escape) { 643 u_long t = len_octal(cur->fts_name, cur->fts_namelen); 644 645 if (t > maxlen) 646 maxlen = t; 647 } 648 if (needstats) { 649 sp = cur->fts_statp; 650 if (sp->st_blocks > maxblock) 651 maxblock = sp->st_blocks; 652 if (sp->st_ino > maxinode) 653 maxinode = sp->st_ino; 654 if (sp->st_nlink > maxnlink) 655 maxnlink = sp->st_nlink; 656 if (sp->st_size > maxsize) 657 maxsize = sp->st_size; 658 659 btotal += sp->st_blocks; 660 if (f_longform) { 661 if (f_numericonly) { 662 snprintf(nuser, sizeof(nuser), 663 "%u", sp->st_uid); 664 snprintf(ngroup, sizeof(ngroup), 665 "%u", sp->st_gid); 666 user = nuser; 667 group = ngroup; 668 } else { 669 user = user_from_uid(sp->st_uid, 0); 670 group = group_from_gid(sp->st_gid, 0); 671 } 672 if ((ulen = strlen(user)) > maxuser) 673 maxuser = ulen; 674 if ((glen = strlen(group)) > maxgroup) 675 maxgroup = glen; 676 if (f_flags) { 677 flags = fflagstostr(sp->st_flags); 678 if (flags != NULL && *flags == '\0') { 679 free(flags); 680 flags = strdup("-"); 681 } 682 if (flags == NULL) 683 err(1, "flagstostr"); 684 flen = strlen(flags); 685 if (flen > (size_t)maxflags) 686 maxflags = flen; 687 } else { 688 flen = 0; 689 } 690 #ifdef _ST_FSMID_PRESENT_ 691 if (f_fsmid) { 692 fsmid = sp->st_fsmid; 693 fsmidlen = 18; 694 } else { 695 fsmid = 0; 696 fsmidlen = 0; 697 } 698 #else 699 fsmidlen = 0; 700 #endif 701 702 if ((np = malloc(sizeof(NAMES) + 703 ulen + glen + flen + fsmidlen + 4)) == NULL) 704 err(1, "malloc"); 705 706 np->user = &np->data[0]; 707 strcpy(np->user, user); 708 np->group = &np->data[ulen + 1]; 709 strcpy(np->group, group); 710 711 if (S_ISCHR(sp->st_mode) || 712 S_ISBLK(sp->st_mode)) 713 bcfile = 1; 714 715 if (f_flags) { 716 np->flags = &np->data[ulen + glen + 2]; 717 strcpy(np->flags, flags); 718 free(flags); 719 } 720 #ifdef _ST_FSMID_PRESENT_ 721 if (f_fsmid) { 722 np->fsmid = np->data + ulen + glen + flen + 3; 723 snprintf(np->fsmid, fsmidlen + 1, 724 "%016llx", fsmid); 725 } 726 #endif 727 cur->fts_pointer = np; 728 } 729 } 730 ++entries; 731 } 732 733 /* 734 * If there are no entries to display, we normally stop right 735 * here. However, we must continue if we have to display the 736 * total block count. In this case, we display the total only 737 * on the second (p != NULL) pass. 738 */ 739 if (!entries && (!(f_longform || f_size) || p == NULL)) 740 return; 741 742 d.list = list; 743 d.entries = entries; 744 d.maxlen = maxlen; 745 if (needstats) { 746 d.bcfile = bcfile; 747 d.btotal = btotal; 748 snprintf(buf, sizeof(buf), "%lli", maxblock); 749 d.s_block = strlen(buf); 750 d.s_flags = maxflags; 751 d.s_group = maxgroup; 752 snprintf(buf, sizeof(buf), "%llu", maxinode); 753 d.s_inode = strlen(buf); 754 snprintf(buf, sizeof(buf), "%u", maxnlink); 755 d.s_nlink = strlen(buf); 756 snprintf(buf, sizeof(buf), "%llu", maxsize); 757 d.s_size = strlen(buf); 758 d.s_user = maxuser; 759 } 760 printfcn(&d); 761 output = 1; 762 763 if (f_longform) 764 for (cur = list; cur; cur = cur->fts_link) 765 free(cur->fts_pointer); 766 } 767 768 /* 769 * Ordering for mastercmp: 770 * If ordering the argv (fts_level = FTS_ROOTLEVEL) return non-directories 771 * as larger than directories. Within either group, use the sort function. 772 * All other levels use the sort function. Error entries remain unsorted. 773 */ 774 static int 775 mastercmp(const FTSENT **a, const FTSENT **b) 776 { 777 int a_info, b_info; 778 779 a_info = (*a)->fts_info; 780 if (a_info == FTS_ERR) 781 return (0); 782 b_info = (*b)->fts_info; 783 if (b_info == FTS_ERR) 784 return (0); 785 786 if (a_info == FTS_NS || b_info == FTS_NS) 787 return (namecmp(*a, *b)); 788 789 if (a_info != b_info && 790 (*a)->fts_level == FTS_ROOTLEVEL && !f_listdir) { 791 if (a_info == FTS_D) 792 return (1); 793 if (b_info == FTS_D) 794 return (-1); 795 } 796 return (sortfcn(*a, *b)); 797 } 798