1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1989, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Michael Fischbein. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #include <sys/param.h> 36 #include <sys/stat.h> 37 #include <sys/acl.h> 38 39 #include <err.h> 40 #include <errno.h> 41 #include <fts.h> 42 #include <langinfo.h> 43 #include <libutil.h> 44 #include <limits.h> 45 #include <stdio.h> 46 #include <stdint.h> 47 #include <stdlib.h> 48 #include <string.h> 49 #include <time.h> 50 #include <unistd.h> 51 #include <wchar.h> 52 #ifdef COLORLS 53 #include <ctype.h> 54 #include <termcap.h> 55 #include <signal.h> 56 #endif 57 58 #include "ls.h" 59 #include "extern.h" 60 61 static int printaname(const FTSENT *, u_long, u_long); 62 static void printdev(size_t, dev_t); 63 static void printlink(const FTSENT *); 64 static void printtime(time_t); 65 static int printtype(u_int); 66 static void printsize(size_t, off_t); 67 #ifdef COLORLS 68 static void endcolor_termcap(int); 69 static void endcolor_ansi(void); 70 static void endcolor(int); 71 static int colortype(mode_t); 72 #endif 73 static void aclmode(char *, const FTSENT *); 74 75 #define IS_NOPRINT(p) ((p)->fts_number == NO_PRINT) 76 77 #ifdef COLORLS 78 /* Most of these are taken from <sys/stat.h> */ 79 typedef enum Colors { 80 C_DIR, /* directory */ 81 C_LNK, /* symbolic link */ 82 C_SOCK, /* socket */ 83 C_FIFO, /* pipe */ 84 C_EXEC, /* executable */ 85 C_BLK, /* block special */ 86 C_CHR, /* character special */ 87 C_SUID, /* setuid executable */ 88 C_SGID, /* setgid executable */ 89 C_WSDIR, /* directory writeble to others, with sticky 90 * bit */ 91 C_WDIR, /* directory writeble to others, without 92 * sticky bit */ 93 C_NUMCOLORS /* just a place-holder */ 94 } Colors; 95 96 static const char *defcolors = "exfxcxdxbxegedabagacad"; 97 98 /* colors for file types */ 99 static struct { 100 int num[2]; 101 bool bold; 102 bool underline; 103 } colors[C_NUMCOLORS]; 104 #endif 105 106 static size_t padding_for_month[12]; 107 static size_t month_max_size = 0; 108 109 void 110 printscol(const DISPLAY *dp) 111 { 112 FTSENT *p; 113 114 for (p = dp->list; p; p = p->fts_link) { 115 if (IS_NOPRINT(p)) 116 continue; 117 (void)printaname(p, dp->s_inode, dp->s_block); 118 (void)putchar('\n'); 119 } 120 } 121 122 /* 123 * print name in current style 124 */ 125 int 126 printname(const char *name) 127 { 128 if (f_octal || f_octal_escape) 129 return prn_octal(name); 130 else if (f_nonprint) 131 return prn_printable(name); 132 else 133 return prn_normal(name); 134 } 135 136 static const char * 137 get_abmon(int mon) 138 { 139 140 switch (mon) { 141 case 0: return (nl_langinfo(ABMON_1)); 142 case 1: return (nl_langinfo(ABMON_2)); 143 case 2: return (nl_langinfo(ABMON_3)); 144 case 3: return (nl_langinfo(ABMON_4)); 145 case 4: return (nl_langinfo(ABMON_5)); 146 case 5: return (nl_langinfo(ABMON_6)); 147 case 6: return (nl_langinfo(ABMON_7)); 148 case 7: return (nl_langinfo(ABMON_8)); 149 case 8: return (nl_langinfo(ABMON_9)); 150 case 9: return (nl_langinfo(ABMON_10)); 151 case 10: return (nl_langinfo(ABMON_11)); 152 case 11: return (nl_langinfo(ABMON_12)); 153 } 154 155 /* should never happen */ 156 abort(); 157 } 158 159 static size_t 160 mbswidth(const char *month) 161 { 162 wchar_t wc; 163 size_t width, donelen, clen, w; 164 165 width = donelen = 0; 166 while ((clen = mbrtowc(&wc, month + donelen, MB_LEN_MAX, NULL)) != 0) { 167 if (clen == (size_t)-1 || clen == (size_t)-2) 168 return (-1); 169 donelen += clen; 170 if ((w = wcwidth(wc)) == (size_t)-1) 171 return (-1); 172 width += w; 173 } 174 175 return (width); 176 } 177 178 static void 179 compute_abbreviated_month_size(void) 180 { 181 int i; 182 size_t width; 183 size_t months_width[12]; 184 185 for (i = 0; i < 12; i++) { 186 width = mbswidth(get_abmon(i)); 187 if (width == (size_t)-1) { 188 month_max_size = -1; 189 return; 190 } 191 months_width[i] = width; 192 if (width > month_max_size) 193 month_max_size = width; 194 } 195 196 for (i = 0; i < 12; i++) 197 padding_for_month[i] = month_max_size - months_width[i]; 198 } 199 200 void 201 printlong(const DISPLAY *dp) 202 { 203 struct stat *sp; 204 FTSENT *p; 205 NAMES *np; 206 char buf[20]; 207 #ifdef COLORLS 208 int color_printed = 0; 209 #endif 210 211 if ((dp->list == NULL || dp->list->fts_level != FTS_ROOTLEVEL) && 212 (f_longform || f_size)) { 213 (void)printf("total %lu\n", howmany(dp->btotal, blocksize)); 214 } 215 216 for (p = dp->list; p; p = p->fts_link) { 217 if (IS_NOPRINT(p)) 218 continue; 219 sp = p->fts_statp; 220 if (f_inode) 221 (void)printf("%*ju ", 222 dp->s_inode, (uintmax_t)sp->st_ino); 223 if (f_size) 224 (void)printf(f_thousands ? "%'*jd " : "%*jd ", 225 dp->s_block, howmany(sp->st_blocks, blocksize)); 226 strmode(sp->st_mode, buf); 227 aclmode(buf, p); 228 np = p->fts_pointer; 229 (void)printf("%s %*ju ", buf, dp->s_nlink, 230 (uintmax_t)sp->st_nlink); 231 if (!f_sowner) 232 (void)printf("%-*s ", dp->s_user, np->user); 233 (void)printf("%-*s ", dp->s_group, np->group); 234 if (f_flags) 235 (void)printf("%-*s ", dp->s_flags, np->flags); 236 if (f_label) 237 (void)printf("%-*s ", dp->s_label, np->label); 238 if (S_ISCHR(sp->st_mode) || S_ISBLK(sp->st_mode)) 239 printdev(dp->s_size, sp->st_rdev); 240 else 241 printsize(dp->s_size, sp->st_size); 242 if (f_accesstime) 243 printtime(sp->st_atime); 244 else if (f_birthtime) 245 printtime(sp->st_birthtime); 246 else if (f_statustime) 247 printtime(sp->st_ctime); 248 else 249 printtime(sp->st_mtime); 250 #ifdef COLORLS 251 if (f_color) 252 color_printed = colortype(sp->st_mode); 253 #endif 254 (void)printname(p->fts_name); 255 #ifdef COLORLS 256 if (f_color && color_printed) 257 endcolor(0); 258 #endif 259 if (f_type) 260 (void)printtype(sp->st_mode); 261 if (S_ISLNK(sp->st_mode)) 262 printlink(p); 263 (void)putchar('\n'); 264 } 265 } 266 267 void 268 printstream(const DISPLAY *dp) 269 { 270 FTSENT *p; 271 int chcnt; 272 273 for (p = dp->list, chcnt = 0; p; p = p->fts_link) { 274 if (p->fts_number == NO_PRINT) 275 continue; 276 /* XXX strlen does not take octal escapes into account. */ 277 if (strlen(p->fts_name) + chcnt + 278 (p->fts_link ? 2 : 0) >= (unsigned)termwidth) { 279 putchar('\n'); 280 chcnt = 0; 281 } 282 chcnt += printaname(p, dp->s_inode, dp->s_block); 283 if (p->fts_link) { 284 printf(", "); 285 chcnt += 2; 286 } 287 } 288 if (chcnt) 289 putchar('\n'); 290 } 291 292 void 293 printcol(const DISPLAY *dp) 294 { 295 static FTSENT **array; 296 static int lastentries = -1; 297 FTSENT *p; 298 FTSENT **narray; 299 int base; 300 int chcnt; 301 int cnt; 302 int col; 303 int colwidth; 304 int endcol; 305 int num; 306 int numcols; 307 int numrows; 308 int row; 309 int tabwidth; 310 311 if (f_notabs) 312 tabwidth = 1; 313 else 314 tabwidth = 8; 315 316 /* 317 * Have to do random access in the linked list -- build a table 318 * of pointers. 319 */ 320 if (dp->entries > lastentries) { 321 if ((narray = 322 realloc(array, dp->entries * sizeof(FTSENT *))) == NULL) { 323 warn(NULL); 324 printscol(dp); 325 return; 326 } 327 lastentries = dp->entries; 328 array = narray; 329 } 330 for (p = dp->list, num = 0; p; p = p->fts_link) 331 if (p->fts_number != NO_PRINT) 332 array[num++] = p; 333 334 colwidth = dp->maxlen; 335 if (f_inode) 336 colwidth += dp->s_inode + 1; 337 if (f_size) 338 colwidth += dp->s_block + 1; 339 if (f_type) 340 colwidth += 1; 341 342 colwidth = (colwidth + tabwidth) & ~(tabwidth - 1); 343 if (termwidth < 2 * colwidth) { 344 printscol(dp); 345 return; 346 } 347 numcols = termwidth / colwidth; 348 numrows = num / numcols; 349 if (num % numcols) 350 ++numrows; 351 352 if ((dp->list == NULL || dp->list->fts_level != FTS_ROOTLEVEL) && 353 (f_longform || f_size)) { 354 (void)printf("total %lu\n", howmany(dp->btotal, blocksize)); 355 } 356 357 base = 0; 358 for (row = 0; row < numrows; ++row) { 359 endcol = colwidth; 360 if (!f_sortacross) 361 base = row; 362 for (col = 0, chcnt = 0; col < numcols; ++col) { 363 chcnt += printaname(array[base], dp->s_inode, 364 dp->s_block); 365 if (f_sortacross) 366 base++; 367 else 368 base += numrows; 369 if (base >= num) 370 break; 371 while ((cnt = ((chcnt + tabwidth) & ~(tabwidth - 1))) 372 <= endcol) { 373 if (f_sortacross && col + 1 >= numcols) 374 break; 375 (void)putchar(f_notabs ? ' ' : '\t'); 376 chcnt = cnt; 377 } 378 endcol += colwidth; 379 } 380 (void)putchar('\n'); 381 } 382 } 383 384 /* 385 * print [inode] [size] name 386 * return # of characters printed, no trailing characters. 387 */ 388 static int 389 printaname(const FTSENT *p, u_long inodefield, u_long sizefield) 390 { 391 struct stat *sp; 392 int chcnt; 393 #ifdef COLORLS 394 int color_printed = 0; 395 #endif 396 397 sp = p->fts_statp; 398 chcnt = 0; 399 if (f_inode) 400 chcnt += printf("%*ju ", 401 (int)inodefield, (uintmax_t)sp->st_ino); 402 if (f_size) 403 chcnt += printf(f_thousands ? "%'*jd " : "%*jd ", 404 (int)sizefield, howmany(sp->st_blocks, blocksize)); 405 #ifdef COLORLS 406 if (f_color) 407 color_printed = colortype(sp->st_mode); 408 #endif 409 chcnt += printname(p->fts_name); 410 #ifdef COLORLS 411 if (f_color && color_printed) 412 endcolor(0); 413 #endif 414 if (f_type) 415 chcnt += printtype(sp->st_mode); 416 return (chcnt); 417 } 418 419 /* 420 * Print device special file major and minor numbers. 421 */ 422 static void 423 printdev(size_t width, dev_t dev) 424 { 425 426 (void)printf("%#*jx ", (u_int)width, (uintmax_t)dev); 427 } 428 429 static void 430 ls_strftime(char *str, size_t len, const char *fmt, const struct tm *tm) 431 { 432 char *posb, nfmt[BUFSIZ]; 433 const char *format = fmt; 434 435 if ((posb = strstr(fmt, "%b")) != NULL) { 436 if (month_max_size == 0) { 437 compute_abbreviated_month_size(); 438 } 439 if (month_max_size > 0 && tm != NULL) { 440 snprintf(nfmt, sizeof(nfmt), "%.*s%s%*s%s", 441 (int)(posb - fmt), fmt, 442 get_abmon(tm->tm_mon), 443 (int)padding_for_month[tm->tm_mon], 444 "", 445 posb + 2); 446 format = nfmt; 447 } 448 } 449 if (tm != NULL) 450 strftime(str, len, format, tm); 451 else 452 strlcpy(str, "bad date val", len); 453 } 454 455 static void 456 printtime(time_t ftime) 457 { 458 char longstring[80]; 459 static time_t now = 0; 460 const char *format; 461 static int d_first = -1; 462 463 if (d_first < 0) 464 d_first = (*nl_langinfo(D_MD_ORDER) == 'd'); 465 if (now == 0) 466 now = time(NULL); 467 468 #define SIXMONTHS ((365 / 2) * 86400) 469 if (f_timeformat) /* user specified format */ 470 format = f_timeformat; 471 else if (f_sectime) 472 /* mmm dd hh:mm:ss yyyy || dd mmm hh:mm:ss yyyy */ 473 format = d_first ? "%e %b %T %Y" : "%b %e %T %Y"; 474 else if (ftime + SIXMONTHS > now && ftime < now + SIXMONTHS) 475 /* mmm dd hh:mm || dd mmm hh:mm */ 476 format = d_first ? "%e %b %R" : "%b %e %R"; 477 else 478 /* mmm dd yyyy || dd mmm yyyy */ 479 format = d_first ? "%e %b %Y" : "%b %e %Y"; 480 ls_strftime(longstring, sizeof(longstring), format, localtime(&ftime)); 481 fputs(longstring, stdout); 482 fputc(' ', stdout); 483 } 484 485 static int 486 printtype(u_int mode) 487 { 488 489 if (f_slash) { 490 if ((mode & S_IFMT) == S_IFDIR) { 491 (void)putchar('/'); 492 return (1); 493 } 494 return (0); 495 } 496 497 switch (mode & S_IFMT) { 498 case S_IFDIR: 499 (void)putchar('/'); 500 return (1); 501 case S_IFIFO: 502 (void)putchar('|'); 503 return (1); 504 case S_IFLNK: 505 (void)putchar('@'); 506 return (1); 507 case S_IFSOCK: 508 (void)putchar('='); 509 return (1); 510 case S_IFWHT: 511 (void)putchar('%'); 512 return (1); 513 default: 514 break; 515 } 516 if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) { 517 (void)putchar('*'); 518 return (1); 519 } 520 return (0); 521 } 522 523 #ifdef COLORLS 524 static int 525 putch(int c) 526 { 527 (void)putchar(c); 528 return 0; 529 } 530 531 static int 532 writech(int c) 533 { 534 char tmp = (char)c; 535 536 (void)write(STDOUT_FILENO, &tmp, 1); 537 return 0; 538 } 539 540 static void 541 printcolor_termcap(Colors c) 542 { 543 char *ansiseq; 544 545 if (colors[c].bold) 546 tputs(enter_bold, 1, putch); 547 if (colors[c].underline) 548 tputs(enter_underline, 1, putch); 549 550 if (colors[c].num[0] != -1) { 551 ansiseq = tgoto(ansi_fgcol, 0, colors[c].num[0]); 552 if (ansiseq) 553 tputs(ansiseq, 1, putch); 554 } 555 if (colors[c].num[1] != -1) { 556 ansiseq = tgoto(ansi_bgcol, 0, colors[c].num[1]); 557 if (ansiseq) 558 tputs(ansiseq, 1, putch); 559 } 560 } 561 562 static void 563 printcolor_ansi(Colors c) 564 { 565 566 printf("\033["); 567 568 if (colors[c].bold) 569 printf("1"); 570 if (colors[c].underline) 571 printf(";4"); 572 if (colors[c].num[0] != -1) 573 printf(";3%d", colors[c].num[0]); 574 if (colors[c].num[1] != -1) 575 printf(";4%d", colors[c].num[1]); 576 printf("m"); 577 } 578 579 static void 580 printcolor(Colors c) 581 { 582 583 if (explicitansi) 584 printcolor_ansi(c); 585 else 586 printcolor_termcap(c); 587 } 588 589 static void 590 endcolor_termcap(int sig) 591 { 592 593 tputs(ansi_coloff, 1, sig ? writech : putch); 594 tputs(attrs_off, 1, sig ? writech : putch); 595 } 596 597 static void 598 endcolor_ansi(void) 599 { 600 601 printf("\33[m"); 602 } 603 604 static void 605 endcolor(int sig) 606 { 607 608 if (explicitansi) 609 endcolor_ansi(); 610 else 611 endcolor_termcap(sig); 612 } 613 614 static int 615 colortype(mode_t mode) 616 { 617 switch (mode & S_IFMT) { 618 case S_IFDIR: 619 if (mode & S_IWOTH) 620 if (mode & S_ISTXT) 621 printcolor(C_WSDIR); 622 else 623 printcolor(C_WDIR); 624 else 625 printcolor(C_DIR); 626 return (1); 627 case S_IFLNK: 628 printcolor(C_LNK); 629 return (1); 630 case S_IFSOCK: 631 printcolor(C_SOCK); 632 return (1); 633 case S_IFIFO: 634 printcolor(C_FIFO); 635 return (1); 636 case S_IFBLK: 637 printcolor(C_BLK); 638 return (1); 639 case S_IFCHR: 640 printcolor(C_CHR); 641 return (1); 642 default:; 643 } 644 if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) { 645 if (mode & S_ISUID) 646 printcolor(C_SUID); 647 else if (mode & S_ISGID) 648 printcolor(C_SGID); 649 else 650 printcolor(C_EXEC); 651 return (1); 652 } 653 return (0); 654 } 655 656 void 657 parsecolors(const char *cs) 658 { 659 int i; 660 int j; 661 size_t len; 662 char c[2]; 663 short legacy_warn = 0; 664 665 if (cs == NULL) 666 cs = ""; /* LSCOLORS not set */ 667 len = strlen(cs); 668 for (i = 0; i < (int)C_NUMCOLORS; i++) { 669 colors[i].bold = false; 670 colors[i].underline = false; 671 672 if (len <= 2 * (size_t)i) { 673 c[0] = defcolors[2 * i]; 674 c[1] = defcolors[2 * i + 1]; 675 } else { 676 c[0] = cs[2 * i]; 677 c[1] = cs[2 * i + 1]; 678 } 679 for (j = 0; j < 2; j++) { 680 /* Legacy colours used 0-7 */ 681 if (c[j] >= '0' && c[j] <= '7') { 682 colors[i].num[j] = c[j] - '0'; 683 if (!legacy_warn) { 684 warnx("LSCOLORS should use " 685 "characters a-h instead of 0-9 (" 686 "see the manual page)"); 687 } 688 legacy_warn = 1; 689 } else if (c[j] >= 'a' && c[j] <= 'h') 690 colors[i].num[j] = c[j] - 'a'; 691 else if (c[j] >= 'A' && c[j] <= 'H') { 692 colors[i].num[j] = c[j] - 'A'; 693 if (j == 1) 694 colors[i].underline = true; 695 else 696 colors[i].bold = true; 697 } else if (tolower((unsigned char)c[j]) == 'x') { 698 if (j == 1 && c[j] == 'X') 699 colors[i].underline = true; 700 colors[i].num[j] = -1; 701 } else { 702 warnx("invalid character '%c' in LSCOLORS" 703 " env var", c[j]); 704 colors[i].num[j] = -1; 705 } 706 } 707 } 708 } 709 710 void 711 colorquit(int sig) 712 { 713 endcolor(sig); 714 715 (void)signal(sig, SIG_DFL); 716 (void)kill(getpid(), sig); 717 } 718 719 #endif /* COLORLS */ 720 721 static void 722 printlink(const FTSENT *p) 723 { 724 int lnklen; 725 char name[MAXPATHLEN + 1]; 726 char path[MAXPATHLEN + 1]; 727 728 if (p->fts_level == FTS_ROOTLEVEL) 729 (void)snprintf(name, sizeof(name), "%s", p->fts_name); 730 else 731 (void)snprintf(name, sizeof(name), 732 "%s/%s", p->fts_parent->fts_accpath, p->fts_name); 733 if ((lnklen = readlink(name, path, sizeof(path) - 1)) == -1) { 734 (void)fprintf(stderr, "\nls: %s: %s\n", name, strerror(errno)); 735 return; 736 } 737 path[lnklen] = '\0'; 738 (void)printf(" -> "); 739 (void)printname(path); 740 } 741 742 static void 743 printsize(size_t width, off_t bytes) 744 { 745 746 if (f_humanval) { 747 /* 748 * Reserve one space before the size and allocate room for 749 * the trailing '\0'. 750 */ 751 char buf[HUMANVALSTR_LEN - 1 + 1]; 752 753 humanize_number(buf, sizeof(buf), (int64_t)bytes, "", 754 HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL); 755 (void)printf("%*s ", (u_int)width, buf); 756 } else { 757 (void)printf(f_thousands ? "%'*jd " : "%*jd ", 758 (u_int)width, bytes); 759 } 760 } 761 762 /* 763 * Add a + after the standard rwxrwxrwx mode if the file has an 764 * ACL. strmode() reserves space at the end of the string. 765 */ 766 static void 767 aclmode(char *buf, const FTSENT *p) 768 { 769 char name[MAXPATHLEN + 1]; 770 int ret, trivial; 771 static dev_t previous_dev = NODEV; 772 static int supports_acls = -1; 773 static int type = ACL_TYPE_ACCESS; 774 acl_t facl; 775 776 /* 777 * XXX: ACLs are not supported on whiteouts and device files 778 * residing on UFS. 779 */ 780 if (S_ISCHR(p->fts_statp->st_mode) || S_ISBLK(p->fts_statp->st_mode) || 781 S_ISWHT(p->fts_statp->st_mode)) 782 return; 783 784 if (previous_dev == p->fts_statp->st_dev && supports_acls == 0) 785 return; 786 787 if (p->fts_level == FTS_ROOTLEVEL) 788 snprintf(name, sizeof(name), "%s", p->fts_name); 789 else 790 snprintf(name, sizeof(name), "%s/%s", 791 p->fts_parent->fts_accpath, p->fts_name); 792 793 if (previous_dev != p->fts_statp->st_dev) { 794 previous_dev = p->fts_statp->st_dev; 795 supports_acls = 0; 796 797 ret = lpathconf(name, _PC_ACL_NFS4); 798 if (ret > 0) { 799 type = ACL_TYPE_NFS4; 800 supports_acls = 1; 801 } else if (ret < 0 && errno != EINVAL) { 802 warn("%s", name); 803 return; 804 } 805 if (supports_acls == 0) { 806 ret = lpathconf(name, _PC_ACL_EXTENDED); 807 if (ret > 0) { 808 type = ACL_TYPE_ACCESS; 809 supports_acls = 1; 810 } else if (ret < 0 && errno != EINVAL) { 811 warn("%s", name); 812 return; 813 } 814 } 815 } 816 if (supports_acls == 0) 817 return; 818 facl = acl_get_link_np(name, type); 819 if (facl == NULL) { 820 warn("%s", name); 821 return; 822 } 823 if (acl_is_trivial_np(facl, &trivial)) { 824 acl_free(facl); 825 warn("%s", name); 826 return; 827 } 828 if (!trivial) 829 buf[10] = '+'; 830 acl_free(facl); 831 } 832