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 #if 0 36 #ifndef lint 37 static char sccsid[] = "@(#)print.c 8.4 (Berkeley) 4/17/94"; 38 #endif /* not lint */ 39 #endif 40 #include <sys/cdefs.h> 41 __FBSDID("$FreeBSD$"); 42 43 #include <sys/param.h> 44 #include <sys/stat.h> 45 #include <sys/acl.h> 46 47 #include <err.h> 48 #include <errno.h> 49 #include <fts.h> 50 #include <langinfo.h> 51 #include <libutil.h> 52 #include <limits.h> 53 #include <stdio.h> 54 #include <stdint.h> 55 #include <stdlib.h> 56 #include <string.h> 57 #include <time.h> 58 #include <unistd.h> 59 #include <wchar.h> 60 #ifdef COLORLS 61 #include <ctype.h> 62 #include <termcap.h> 63 #include <signal.h> 64 #endif 65 66 #include "ls.h" 67 #include "extern.h" 68 69 static int printaname(const FTSENT *, u_long, u_long); 70 static void printdev(size_t, dev_t); 71 static void printlink(const FTSENT *); 72 static void printtime(time_t); 73 static int printtype(u_int); 74 static void printsize(size_t, off_t); 75 #ifdef COLORLS 76 static void endcolor_termcap(int); 77 static void endcolor_ansi(void); 78 static void endcolor(int); 79 static int colortype(mode_t); 80 #endif 81 static void aclmode(char *, const FTSENT *); 82 83 #define IS_NOPRINT(p) ((p)->fts_number == NO_PRINT) 84 85 #ifdef COLORLS 86 /* Most of these are taken from <sys/stat.h> */ 87 typedef enum Colors { 88 C_DIR, /* directory */ 89 C_LNK, /* symbolic link */ 90 C_SOCK, /* socket */ 91 C_FIFO, /* pipe */ 92 C_EXEC, /* executable */ 93 C_BLK, /* block special */ 94 C_CHR, /* character special */ 95 C_SUID, /* setuid executable */ 96 C_SGID, /* setgid executable */ 97 C_WSDIR, /* directory writeble to others, with sticky 98 * bit */ 99 C_WDIR, /* directory writeble to others, without 100 * sticky bit */ 101 C_NUMCOLORS /* just a place-holder */ 102 } Colors; 103 104 static const char *defcolors = "exfxcxdxbxegedabagacad"; 105 106 /* colors for file types */ 107 static struct { 108 int num[2]; 109 int bold; 110 } colors[C_NUMCOLORS]; 111 #endif 112 113 static size_t padding_for_month[12]; 114 static size_t month_max_size = 0; 115 116 void 117 printscol(const DISPLAY *dp) 118 { 119 FTSENT *p; 120 121 for (p = dp->list; p; p = p->fts_link) { 122 if (IS_NOPRINT(p)) 123 continue; 124 (void)printaname(p, dp->s_inode, dp->s_block); 125 (void)putchar('\n'); 126 } 127 } 128 129 /* 130 * print name in current style 131 */ 132 int 133 printname(const char *name) 134 { 135 if (f_octal || f_octal_escape) 136 return prn_octal(name); 137 else if (f_nonprint) 138 return prn_printable(name); 139 else 140 return prn_normal(name); 141 } 142 143 static const char * 144 get_abmon(int mon) 145 { 146 147 switch (mon) { 148 case 0: return (nl_langinfo(ABMON_1)); 149 case 1: return (nl_langinfo(ABMON_2)); 150 case 2: return (nl_langinfo(ABMON_3)); 151 case 3: return (nl_langinfo(ABMON_4)); 152 case 4: return (nl_langinfo(ABMON_5)); 153 case 5: return (nl_langinfo(ABMON_6)); 154 case 6: return (nl_langinfo(ABMON_7)); 155 case 7: return (nl_langinfo(ABMON_8)); 156 case 8: return (nl_langinfo(ABMON_9)); 157 case 9: return (nl_langinfo(ABMON_10)); 158 case 10: return (nl_langinfo(ABMON_11)); 159 case 11: return (nl_langinfo(ABMON_12)); 160 } 161 162 /* should never happen */ 163 abort(); 164 } 165 166 static size_t 167 mbswidth(const char *month) 168 { 169 wchar_t wc; 170 size_t width, donelen, clen, w; 171 172 width = donelen = 0; 173 while ((clen = mbrtowc(&wc, month + donelen, MB_LEN_MAX, NULL)) != 0) { 174 if (clen == (size_t)-1 || clen == (size_t)-2) 175 return (-1); 176 donelen += clen; 177 if ((w = wcwidth(wc)) == (size_t)-1) 178 return (-1); 179 width += w; 180 } 181 182 return (width); 183 } 184 185 static void 186 compute_abbreviated_month_size(void) 187 { 188 int i; 189 size_t width; 190 size_t months_width[12]; 191 192 for (i = 0; i < 12; i++) { 193 width = mbswidth(get_abmon(i)); 194 if (width == (size_t)-1) { 195 month_max_size = -1; 196 return; 197 } 198 months_width[i] = width; 199 if (width > month_max_size) 200 month_max_size = width; 201 } 202 203 for (i = 0; i < 12; i++) 204 padding_for_month[i] = month_max_size - months_width[i]; 205 } 206 207 void 208 printlong(const DISPLAY *dp) 209 { 210 struct stat *sp; 211 FTSENT *p; 212 NAMES *np; 213 char buf[20]; 214 #ifdef COLORLS 215 int color_printed = 0; 216 #endif 217 218 if ((dp->list == NULL || dp->list->fts_level != FTS_ROOTLEVEL) && 219 (f_longform || f_size)) { 220 (void)printf("total %lu\n", howmany(dp->btotal, blocksize)); 221 } 222 223 for (p = dp->list; p; p = p->fts_link) { 224 if (IS_NOPRINT(p)) 225 continue; 226 sp = p->fts_statp; 227 if (f_inode) 228 (void)printf("%*ju ", 229 dp->s_inode, (uintmax_t)sp->st_ino); 230 if (f_size) 231 (void)printf("%*jd ", 232 dp->s_block, howmany(sp->st_blocks, blocksize)); 233 strmode(sp->st_mode, buf); 234 aclmode(buf, p); 235 np = p->fts_pointer; 236 (void)printf("%s %*ju %-*s %-*s ", buf, dp->s_nlink, 237 (uintmax_t)sp->st_nlink, dp->s_user, np->user, dp->s_group, 238 np->group); 239 if (f_flags) 240 (void)printf("%-*s ", dp->s_flags, np->flags); 241 if (f_label) 242 (void)printf("%-*s ", dp->s_label, np->label); 243 if (S_ISCHR(sp->st_mode) || S_ISBLK(sp->st_mode)) 244 printdev(dp->s_size, sp->st_rdev); 245 else 246 printsize(dp->s_size, sp->st_size); 247 if (f_accesstime) 248 printtime(sp->st_atime); 249 else if (f_birthtime) 250 printtime(sp->st_birthtime); 251 else if (f_statustime) 252 printtime(sp->st_ctime); 253 else 254 printtime(sp->st_mtime); 255 #ifdef COLORLS 256 if (f_color) 257 color_printed = colortype(sp->st_mode); 258 #endif 259 (void)printname(p->fts_name); 260 #ifdef COLORLS 261 if (f_color && color_printed) 262 endcolor(0); 263 #endif 264 if (f_type) 265 (void)printtype(sp->st_mode); 266 if (S_ISLNK(sp->st_mode)) 267 printlink(p); 268 (void)putchar('\n'); 269 } 270 } 271 272 void 273 printstream(const DISPLAY *dp) 274 { 275 FTSENT *p; 276 int chcnt; 277 278 for (p = dp->list, chcnt = 0; p; p = p->fts_link) { 279 if (p->fts_number == NO_PRINT) 280 continue; 281 /* XXX strlen does not take octal escapes into account. */ 282 if (strlen(p->fts_name) + chcnt + 283 (p->fts_link ? 2 : 0) >= (unsigned)termwidth) { 284 putchar('\n'); 285 chcnt = 0; 286 } 287 chcnt += printaname(p, dp->s_inode, dp->s_block); 288 if (p->fts_link) { 289 printf(", "); 290 chcnt += 2; 291 } 292 } 293 if (chcnt) 294 putchar('\n'); 295 } 296 297 void 298 printcol(const DISPLAY *dp) 299 { 300 static FTSENT **array; 301 static int lastentries = -1; 302 FTSENT *p; 303 FTSENT **narray; 304 int base; 305 int chcnt; 306 int cnt; 307 int col; 308 int colwidth; 309 int endcol; 310 int num; 311 int numcols; 312 int numrows; 313 int row; 314 int tabwidth; 315 316 if (f_notabs) 317 tabwidth = 1; 318 else 319 tabwidth = 8; 320 321 /* 322 * Have to do random access in the linked list -- build a table 323 * of pointers. 324 */ 325 if (dp->entries > lastentries) { 326 if ((narray = 327 realloc(array, dp->entries * sizeof(FTSENT *))) == NULL) { 328 warn(NULL); 329 printscol(dp); 330 return; 331 } 332 lastentries = dp->entries; 333 array = narray; 334 } 335 for (p = dp->list, num = 0; p; p = p->fts_link) 336 if (p->fts_number != NO_PRINT) 337 array[num++] = p; 338 339 colwidth = dp->maxlen; 340 if (f_inode) 341 colwidth += dp->s_inode + 1; 342 if (f_size) 343 colwidth += dp->s_block + 1; 344 if (f_type) 345 colwidth += 1; 346 347 colwidth = (colwidth + tabwidth) & ~(tabwidth - 1); 348 if (termwidth < 2 * colwidth) { 349 printscol(dp); 350 return; 351 } 352 numcols = termwidth / colwidth; 353 numrows = num / numcols; 354 if (num % numcols) 355 ++numrows; 356 357 if ((dp->list == NULL || dp->list->fts_level != FTS_ROOTLEVEL) && 358 (f_longform || f_size)) { 359 (void)printf("total %lu\n", howmany(dp->btotal, blocksize)); 360 } 361 362 base = 0; 363 for (row = 0; row < numrows; ++row) { 364 endcol = colwidth; 365 if (!f_sortacross) 366 base = row; 367 for (col = 0, chcnt = 0; col < numcols; ++col) { 368 chcnt += printaname(array[base], dp->s_inode, 369 dp->s_block); 370 if (f_sortacross) 371 base++; 372 else 373 base += numrows; 374 if (base >= num) 375 break; 376 while ((cnt = ((chcnt + tabwidth) & ~(tabwidth - 1))) 377 <= endcol) { 378 if (f_sortacross && col + 1 >= numcols) 379 break; 380 (void)putchar(f_notabs ? ' ' : '\t'); 381 chcnt = cnt; 382 } 383 endcol += colwidth; 384 } 385 (void)putchar('\n'); 386 } 387 } 388 389 /* 390 * print [inode] [size] name 391 * return # of characters printed, no trailing characters. 392 */ 393 static int 394 printaname(const FTSENT *p, u_long inodefield, u_long sizefield) 395 { 396 struct stat *sp; 397 int chcnt; 398 #ifdef COLORLS 399 int color_printed = 0; 400 #endif 401 402 sp = p->fts_statp; 403 chcnt = 0; 404 if (f_inode) 405 chcnt += printf("%*ju ", 406 (int)inodefield, (uintmax_t)sp->st_ino); 407 if (f_size) 408 chcnt += printf("%*jd ", 409 (int)sizefield, howmany(sp->st_blocks, blocksize)); 410 #ifdef COLORLS 411 if (f_color) 412 color_printed = colortype(sp->st_mode); 413 #endif 414 chcnt += printname(p->fts_name); 415 #ifdef COLORLS 416 if (f_color && color_printed) 417 endcolor(0); 418 #endif 419 if (f_type) 420 chcnt += printtype(sp->st_mode); 421 return (chcnt); 422 } 423 424 /* 425 * Print device special file major and minor numbers. 426 */ 427 static void 428 printdev(size_t width, dev_t dev) 429 { 430 431 (void)printf("%#*jx ", (u_int)width, (uintmax_t)dev); 432 } 433 434 static size_t 435 ls_strftime(char *str, size_t len, const char *fmt, const struct tm *tm) 436 { 437 char *posb, nfmt[BUFSIZ]; 438 const char *format = fmt; 439 size_t ret; 440 441 if ((posb = strstr(fmt, "%b")) != NULL) { 442 if (month_max_size == 0) { 443 compute_abbreviated_month_size(); 444 } 445 if (month_max_size > 0) { 446 snprintf(nfmt, sizeof(nfmt), "%.*s%s%*s%s", 447 (int)(posb - fmt), fmt, 448 get_abmon(tm->tm_mon), 449 (int)padding_for_month[tm->tm_mon], 450 "", 451 posb + 2); 452 format = nfmt; 453 } 454 } 455 ret = strftime(str, len, format, tm); 456 return (ret); 457 } 458 459 static void 460 printtime(time_t ftime) 461 { 462 char longstring[80]; 463 static time_t now = 0; 464 const char *format; 465 static int d_first = -1; 466 467 if (d_first < 0) 468 d_first = (*nl_langinfo(D_MD_ORDER) == 'd'); 469 if (now == 0) 470 now = time(NULL); 471 472 #define SIXMONTHS ((365 / 2) * 86400) 473 if (f_timeformat) /* user specified format */ 474 format = f_timeformat; 475 else if (f_sectime) 476 /* mmm dd hh:mm:ss yyyy || dd mmm hh:mm:ss yyyy */ 477 format = d_first ? "%e %b %T %Y" : "%b %e %T %Y"; 478 else if (ftime + SIXMONTHS > now && ftime < now + SIXMONTHS) 479 /* mmm dd hh:mm || dd mmm hh:mm */ 480 format = d_first ? "%e %b %R" : "%b %e %R"; 481 else 482 /* mmm dd yyyy || dd mmm yyyy */ 483 format = d_first ? "%e %b %Y" : "%b %e %Y"; 484 ls_strftime(longstring, sizeof(longstring), format, localtime(&ftime)); 485 fputs(longstring, stdout); 486 fputc(' ', stdout); 487 } 488 489 static int 490 printtype(u_int mode) 491 { 492 493 if (f_slash) { 494 if ((mode & S_IFMT) == S_IFDIR) { 495 (void)putchar('/'); 496 return (1); 497 } 498 return (0); 499 } 500 501 switch (mode & S_IFMT) { 502 case S_IFDIR: 503 (void)putchar('/'); 504 return (1); 505 case S_IFIFO: 506 (void)putchar('|'); 507 return (1); 508 case S_IFLNK: 509 (void)putchar('@'); 510 return (1); 511 case S_IFSOCK: 512 (void)putchar('='); 513 return (1); 514 case S_IFWHT: 515 (void)putchar('%'); 516 return (1); 517 default: 518 break; 519 } 520 if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) { 521 (void)putchar('*'); 522 return (1); 523 } 524 return (0); 525 } 526 527 #ifdef COLORLS 528 static int 529 putch(int c) 530 { 531 (void)putchar(c); 532 return 0; 533 } 534 535 static int 536 writech(int c) 537 { 538 char tmp = (char)c; 539 540 (void)write(STDOUT_FILENO, &tmp, 1); 541 return 0; 542 } 543 544 static void 545 printcolor_termcap(Colors c) 546 { 547 char *ansiseq; 548 549 if (colors[c].bold) 550 tputs(enter_bold, 1, putch); 551 552 if (colors[c].num[0] != -1) { 553 ansiseq = tgoto(ansi_fgcol, 0, colors[c].num[0]); 554 if (ansiseq) 555 tputs(ansiseq, 1, putch); 556 } 557 if (colors[c].num[1] != -1) { 558 ansiseq = tgoto(ansi_bgcol, 0, colors[c].num[1]); 559 if (ansiseq) 560 tputs(ansiseq, 1, putch); 561 } 562 } 563 564 static void 565 printcolor_ansi(Colors c) 566 { 567 568 printf("\033["); 569 570 if (colors[c].bold) 571 printf("1"); 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 = 0; 670 671 if (len <= 2 * (size_t)i) { 672 c[0] = defcolors[2 * i]; 673 c[1] = defcolors[2 * i + 1]; 674 } else { 675 c[0] = cs[2 * i]; 676 c[1] = cs[2 * i + 1]; 677 } 678 for (j = 0; j < 2; j++) { 679 /* Legacy colours used 0-7 */ 680 if (c[j] >= '0' && c[j] <= '7') { 681 colors[i].num[j] = c[j] - '0'; 682 if (!legacy_warn) { 683 warnx("LSCOLORS should use " 684 "characters a-h instead of 0-9 (" 685 "see the manual page)"); 686 } 687 legacy_warn = 1; 688 } else if (c[j] >= 'a' && c[j] <= 'h') 689 colors[i].num[j] = c[j] - 'a'; 690 else if (c[j] >= 'A' && c[j] <= 'H') { 691 colors[i].num[j] = c[j] - 'A'; 692 colors[i].bold = 1; 693 } else if (tolower((unsigned char)c[j]) == 'x') 694 colors[i].num[j] = -1; 695 else { 696 warnx("invalid character '%c' in LSCOLORS" 697 " env var", c[j]); 698 colors[i].num[j] = -1; 699 } 700 } 701 } 702 } 703 704 void 705 colorquit(int sig) 706 { 707 endcolor(sig); 708 709 (void)signal(sig, SIG_DFL); 710 (void)kill(getpid(), sig); 711 } 712 713 #endif /* COLORLS */ 714 715 static void 716 printlink(const FTSENT *p) 717 { 718 int lnklen; 719 char name[MAXPATHLEN + 1]; 720 char path[MAXPATHLEN + 1]; 721 722 if (p->fts_level == FTS_ROOTLEVEL) 723 (void)snprintf(name, sizeof(name), "%s", p->fts_name); 724 else 725 (void)snprintf(name, sizeof(name), 726 "%s/%s", p->fts_parent->fts_accpath, p->fts_name); 727 if ((lnklen = readlink(name, path, sizeof(path) - 1)) == -1) { 728 (void)fprintf(stderr, "\nls: %s: %s\n", name, strerror(errno)); 729 return; 730 } 731 path[lnklen] = '\0'; 732 (void)printf(" -> "); 733 (void)printname(path); 734 } 735 736 static void 737 printsize(size_t width, off_t bytes) 738 { 739 740 if (f_humanval) { 741 /* 742 * Reserve one space before the size and allocate room for 743 * the trailing '\0'. 744 */ 745 char buf[HUMANVALSTR_LEN - 1 + 1]; 746 747 humanize_number(buf, sizeof(buf), (int64_t)bytes, "", 748 HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL); 749 (void)printf("%*s ", (u_int)width, buf); 750 } else if (f_thousands) { /* with commas */ 751 /* This format assignment needed to work round gcc bug. */ 752 const char *format = "%*j'd "; 753 (void)printf(format, (u_int)width, bytes); 754 } else 755 (void)printf("%*jd ", (u_int)width, bytes); 756 } 757 758 /* 759 * Add a + after the standard rwxrwxrwx mode if the file has an 760 * ACL. strmode() reserves space at the end of the string. 761 */ 762 static void 763 aclmode(char *buf, const FTSENT *p) 764 { 765 char name[MAXPATHLEN + 1]; 766 int ret, trivial; 767 static dev_t previous_dev = NODEV; 768 static int supports_acls = -1; 769 static int type = ACL_TYPE_ACCESS; 770 acl_t facl; 771 772 /* 773 * XXX: ACLs are not supported on whiteouts and device files 774 * residing on UFS. 775 */ 776 if (S_ISCHR(p->fts_statp->st_mode) || S_ISBLK(p->fts_statp->st_mode) || 777 S_ISWHT(p->fts_statp->st_mode)) 778 return; 779 780 if (previous_dev == p->fts_statp->st_dev && supports_acls == 0) 781 return; 782 783 if (p->fts_level == FTS_ROOTLEVEL) 784 snprintf(name, sizeof(name), "%s", p->fts_name); 785 else 786 snprintf(name, sizeof(name), "%s/%s", 787 p->fts_parent->fts_accpath, p->fts_name); 788 789 if (previous_dev != p->fts_statp->st_dev) { 790 previous_dev = p->fts_statp->st_dev; 791 supports_acls = 0; 792 793 ret = lpathconf(name, _PC_ACL_NFS4); 794 if (ret > 0) { 795 type = ACL_TYPE_NFS4; 796 supports_acls = 1; 797 } else if (ret < 0 && errno != EINVAL) { 798 warn("%s", name); 799 return; 800 } 801 if (supports_acls == 0) { 802 ret = lpathconf(name, _PC_ACL_EXTENDED); 803 if (ret > 0) { 804 type = ACL_TYPE_ACCESS; 805 supports_acls = 1; 806 } else if (ret < 0 && errno != EINVAL) { 807 warn("%s", name); 808 return; 809 } 810 } 811 } 812 if (supports_acls == 0) 813 return; 814 facl = acl_get_link_np(name, type); 815 if (facl == NULL) { 816 warn("%s", name); 817 return; 818 } 819 if (acl_is_trivial_np(facl, &trivial)) { 820 acl_free(facl); 821 warn("%s", name); 822 return; 823 } 824 if (!trivial) 825 buf[10] = '+'; 826 acl_free(facl); 827 } 828