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 #endif 37 #include <sys/cdefs.h> 38 #include <sys/param.h> 39 #include <sys/stat.h> 40 #include <sys/acl.h> 41 42 #include <err.h> 43 #include <errno.h> 44 #include <fts.h> 45 #include <langinfo.h> 46 #include <libutil.h> 47 #include <limits.h> 48 #include <stdio.h> 49 #include <stdint.h> 50 #include <stdlib.h> 51 #include <string.h> 52 #include <time.h> 53 #include <unistd.h> 54 #include <wchar.h> 55 #ifdef COLORLS 56 #include <ctype.h> 57 #include <termcap.h> 58 #include <signal.h> 59 #endif 60 61 #include "ls.h" 62 #include "extern.h" 63 64 static int printaname(const FTSENT *, u_long, u_long); 65 static void printdev(size_t, dev_t); 66 static void printlink(const FTSENT *); 67 static void printtime(time_t); 68 static int printtype(u_int); 69 static void printsize(size_t, off_t); 70 #ifdef COLORLS 71 static void endcolor_termcap(int); 72 static void endcolor_ansi(void); 73 static void endcolor(int); 74 static int colortype(mode_t); 75 #endif 76 static void aclmode(char *, const FTSENT *); 77 78 #define IS_NOPRINT(p) ((p)->fts_number == NO_PRINT) 79 80 #ifdef COLORLS 81 /* Most of these are taken from <sys/stat.h> */ 82 typedef enum Colors { 83 C_DIR, /* directory */ 84 C_LNK, /* symbolic link */ 85 C_SOCK, /* socket */ 86 C_FIFO, /* pipe */ 87 C_EXEC, /* executable */ 88 C_BLK, /* block special */ 89 C_CHR, /* character special */ 90 C_SUID, /* setuid executable */ 91 C_SGID, /* setgid executable */ 92 C_WSDIR, /* directory writeble to others, with sticky 93 * bit */ 94 C_WDIR, /* directory writeble to others, without 95 * sticky bit */ 96 C_NUMCOLORS /* just a place-holder */ 97 } Colors; 98 99 static const char *defcolors = "exfxcxdxbxegedabagacad"; 100 101 /* colors for file types */ 102 static struct { 103 int num[2]; 104 bool bold; 105 bool underline; 106 } colors[C_NUMCOLORS]; 107 #endif 108 109 static size_t padding_for_month[12]; 110 static size_t month_max_size = 0; 111 112 void 113 printscol(const DISPLAY *dp) 114 { 115 FTSENT *p; 116 117 for (p = dp->list; p; p = p->fts_link) { 118 if (IS_NOPRINT(p)) 119 continue; 120 (void)printaname(p, dp->s_inode, dp->s_block); 121 (void)putchar('\n'); 122 } 123 } 124 125 /* 126 * print name in current style 127 */ 128 int 129 printname(const char *name) 130 { 131 if (f_octal || f_octal_escape) 132 return prn_octal(name); 133 else if (f_nonprint) 134 return prn_printable(name); 135 else 136 return prn_normal(name); 137 } 138 139 static const char * 140 get_abmon(int mon) 141 { 142 143 switch (mon) { 144 case 0: return (nl_langinfo(ABMON_1)); 145 case 1: return (nl_langinfo(ABMON_2)); 146 case 2: return (nl_langinfo(ABMON_3)); 147 case 3: return (nl_langinfo(ABMON_4)); 148 case 4: return (nl_langinfo(ABMON_5)); 149 case 5: return (nl_langinfo(ABMON_6)); 150 case 6: return (nl_langinfo(ABMON_7)); 151 case 7: return (nl_langinfo(ABMON_8)); 152 case 8: return (nl_langinfo(ABMON_9)); 153 case 9: return (nl_langinfo(ABMON_10)); 154 case 10: return (nl_langinfo(ABMON_11)); 155 case 11: return (nl_langinfo(ABMON_12)); 156 } 157 158 /* should never happen */ 159 abort(); 160 } 161 162 static size_t 163 mbswidth(const char *month) 164 { 165 wchar_t wc; 166 size_t width, donelen, clen, w; 167 168 width = donelen = 0; 169 while ((clen = mbrtowc(&wc, month + donelen, MB_LEN_MAX, NULL)) != 0) { 170 if (clen == (size_t)-1 || clen == (size_t)-2) 171 return (-1); 172 donelen += clen; 173 if ((w = wcwidth(wc)) == (size_t)-1) 174 return (-1); 175 width += w; 176 } 177 178 return (width); 179 } 180 181 static void 182 compute_abbreviated_month_size(void) 183 { 184 int i; 185 size_t width; 186 size_t months_width[12]; 187 188 for (i = 0; i < 12; i++) { 189 width = mbswidth(get_abmon(i)); 190 if (width == (size_t)-1) { 191 month_max_size = -1; 192 return; 193 } 194 months_width[i] = width; 195 if (width > month_max_size) 196 month_max_size = width; 197 } 198 199 for (i = 0; i < 12; i++) 200 padding_for_month[i] = month_max_size - months_width[i]; 201 } 202 203 void 204 printlong(const DISPLAY *dp) 205 { 206 struct stat *sp; 207 FTSENT *p; 208 NAMES *np; 209 char buf[20]; 210 #ifdef COLORLS 211 int color_printed = 0; 212 #endif 213 214 if ((dp->list == NULL || dp->list->fts_level != FTS_ROOTLEVEL) && 215 (f_longform || f_size)) { 216 (void)printf("total %lu\n", howmany(dp->btotal, blocksize)); 217 } 218 219 for (p = dp->list; p; p = p->fts_link) { 220 if (IS_NOPRINT(p)) 221 continue; 222 sp = p->fts_statp; 223 if (f_inode) 224 (void)printf("%*ju ", 225 dp->s_inode, (uintmax_t)sp->st_ino); 226 if (f_size) 227 (void)printf("%*jd ", 228 dp->s_block, howmany(sp->st_blocks, blocksize)); 229 strmode(sp->st_mode, buf); 230 aclmode(buf, p); 231 np = p->fts_pointer; 232 (void)printf("%s %*ju ", buf, dp->s_nlink, 233 (uintmax_t)sp->st_nlink); 234 if (!f_sowner) 235 (void)printf("%-*s ", dp->s_user, np->user); 236 (void)printf("%-*s ", dp->s_group, np->group); 237 if (f_flags) 238 (void)printf("%-*s ", dp->s_flags, np->flags); 239 if (f_label) 240 (void)printf("%-*s ", dp->s_label, np->label); 241 if (S_ISCHR(sp->st_mode) || S_ISBLK(sp->st_mode)) 242 printdev(dp->s_size, sp->st_rdev); 243 else 244 printsize(dp->s_size, sp->st_size); 245 if (f_accesstime) 246 printtime(sp->st_atime); 247 else if (f_birthtime) 248 printtime(sp->st_birthtime); 249 else if (f_statustime) 250 printtime(sp->st_ctime); 251 else 252 printtime(sp->st_mtime); 253 #ifdef COLORLS 254 if (f_color) 255 color_printed = colortype(sp->st_mode); 256 #endif 257 (void)printname(p->fts_name); 258 #ifdef COLORLS 259 if (f_color && color_printed) 260 endcolor(0); 261 #endif 262 if (f_type) 263 (void)printtype(sp->st_mode); 264 if (S_ISLNK(sp->st_mode)) 265 printlink(p); 266 (void)putchar('\n'); 267 } 268 } 269 270 void 271 printstream(const DISPLAY *dp) 272 { 273 FTSENT *p; 274 int chcnt; 275 276 for (p = dp->list, chcnt = 0; p; p = p->fts_link) { 277 if (p->fts_number == NO_PRINT) 278 continue; 279 /* XXX strlen does not take octal escapes into account. */ 280 if (strlen(p->fts_name) + chcnt + 281 (p->fts_link ? 2 : 0) >= (unsigned)termwidth) { 282 putchar('\n'); 283 chcnt = 0; 284 } 285 chcnt += printaname(p, dp->s_inode, dp->s_block); 286 if (p->fts_link) { 287 printf(", "); 288 chcnt += 2; 289 } 290 } 291 if (chcnt) 292 putchar('\n'); 293 } 294 295 void 296 printcol(const DISPLAY *dp) 297 { 298 static FTSENT **array; 299 static int lastentries = -1; 300 FTSENT *p; 301 FTSENT **narray; 302 int base; 303 int chcnt; 304 int cnt; 305 int col; 306 int colwidth; 307 int endcol; 308 int num; 309 int numcols; 310 int numrows; 311 int row; 312 int tabwidth; 313 314 if (f_notabs) 315 tabwidth = 1; 316 else 317 tabwidth = 8; 318 319 /* 320 * Have to do random access in the linked list -- build a table 321 * of pointers. 322 */ 323 if (dp->entries > lastentries) { 324 if ((narray = 325 realloc(array, dp->entries * sizeof(FTSENT *))) == NULL) { 326 warn(NULL); 327 printscol(dp); 328 return; 329 } 330 lastentries = dp->entries; 331 array = narray; 332 } 333 for (p = dp->list, num = 0; p; p = p->fts_link) 334 if (p->fts_number != NO_PRINT) 335 array[num++] = p; 336 337 colwidth = dp->maxlen; 338 if (f_inode) 339 colwidth += dp->s_inode + 1; 340 if (f_size) 341 colwidth += dp->s_block + 1; 342 if (f_type) 343 colwidth += 1; 344 345 colwidth = (colwidth + tabwidth) & ~(tabwidth - 1); 346 if (termwidth < 2 * colwidth) { 347 printscol(dp); 348 return; 349 } 350 numcols = termwidth / colwidth; 351 numrows = num / numcols; 352 if (num % numcols) 353 ++numrows; 354 355 if ((dp->list == NULL || dp->list->fts_level != FTS_ROOTLEVEL) && 356 (f_longform || f_size)) { 357 (void)printf("total %lu\n", howmany(dp->btotal, blocksize)); 358 } 359 360 base = 0; 361 for (row = 0; row < numrows; ++row) { 362 endcol = colwidth; 363 if (!f_sortacross) 364 base = row; 365 for (col = 0, chcnt = 0; col < numcols; ++col) { 366 chcnt += printaname(array[base], dp->s_inode, 367 dp->s_block); 368 if (f_sortacross) 369 base++; 370 else 371 base += numrows; 372 if (base >= num) 373 break; 374 while ((cnt = ((chcnt + tabwidth) & ~(tabwidth - 1))) 375 <= endcol) { 376 if (f_sortacross && col + 1 >= numcols) 377 break; 378 (void)putchar(f_notabs ? ' ' : '\t'); 379 chcnt = cnt; 380 } 381 endcol += colwidth; 382 } 383 (void)putchar('\n'); 384 } 385 } 386 387 /* 388 * print [inode] [size] name 389 * return # of characters printed, no trailing characters. 390 */ 391 static int 392 printaname(const FTSENT *p, u_long inodefield, u_long sizefield) 393 { 394 struct stat *sp; 395 int chcnt; 396 #ifdef COLORLS 397 int color_printed = 0; 398 #endif 399 400 sp = p->fts_statp; 401 chcnt = 0; 402 if (f_inode) 403 chcnt += printf("%*ju ", 404 (int)inodefield, (uintmax_t)sp->st_ino); 405 if (f_size) 406 chcnt += printf("%*jd ", 407 (int)sizefield, howmany(sp->st_blocks, blocksize)); 408 #ifdef COLORLS 409 if (f_color) 410 color_printed = colortype(sp->st_mode); 411 #endif 412 chcnt += printname(p->fts_name); 413 #ifdef COLORLS 414 if (f_color && color_printed) 415 endcolor(0); 416 #endif 417 if (f_type) 418 chcnt += printtype(sp->st_mode); 419 return (chcnt); 420 } 421 422 /* 423 * Print device special file major and minor numbers. 424 */ 425 static void 426 printdev(size_t width, dev_t dev) 427 { 428 429 (void)printf("%#*jx ", (u_int)width, (uintmax_t)dev); 430 } 431 432 static void 433 ls_strftime(char *str, size_t len, const char *fmt, const struct tm *tm) 434 { 435 char *posb, nfmt[BUFSIZ]; 436 const char *format = fmt; 437 438 if ((posb = strstr(fmt, "%b")) != NULL) { 439 if (month_max_size == 0) { 440 compute_abbreviated_month_size(); 441 } 442 if (month_max_size > 0 && tm != NULL) { 443 snprintf(nfmt, sizeof(nfmt), "%.*s%s%*s%s", 444 (int)(posb - fmt), fmt, 445 get_abmon(tm->tm_mon), 446 (int)padding_for_month[tm->tm_mon], 447 "", 448 posb + 2); 449 format = nfmt; 450 } 451 } 452 if (tm != NULL) 453 strftime(str, len, format, tm); 454 else 455 strlcpy(str, "bad date val", len); 456 } 457 458 static void 459 printtime(time_t ftime) 460 { 461 char longstring[80]; 462 static time_t now = 0; 463 const char *format; 464 static int d_first = -1; 465 466 if (d_first < 0) 467 d_first = (*nl_langinfo(D_MD_ORDER) == 'd'); 468 if (now == 0) 469 now = time(NULL); 470 471 #define SIXMONTHS ((365 / 2) * 86400) 472 if (f_timeformat) /* user specified format */ 473 format = f_timeformat; 474 else if (f_sectime) 475 /* mmm dd hh:mm:ss yyyy || dd mmm hh:mm:ss yyyy */ 476 format = d_first ? "%e %b %T %Y" : "%b %e %T %Y"; 477 else if (ftime + SIXMONTHS > now && ftime < now + SIXMONTHS) 478 /* mmm dd hh:mm || dd mmm hh:mm */ 479 format = d_first ? "%e %b %R" : "%b %e %R"; 480 else 481 /* mmm dd yyyy || dd mmm yyyy */ 482 format = d_first ? "%e %b %Y" : "%b %e %Y"; 483 ls_strftime(longstring, sizeof(longstring), format, localtime(&ftime)); 484 fputs(longstring, stdout); 485 fputc(' ', stdout); 486 } 487 488 static int 489 printtype(u_int mode) 490 { 491 492 if (f_slash) { 493 if ((mode & S_IFMT) == S_IFDIR) { 494 (void)putchar('/'); 495 return (1); 496 } 497 return (0); 498 } 499 500 switch (mode & S_IFMT) { 501 case S_IFDIR: 502 (void)putchar('/'); 503 return (1); 504 case S_IFIFO: 505 (void)putchar('|'); 506 return (1); 507 case S_IFLNK: 508 (void)putchar('@'); 509 return (1); 510 case S_IFSOCK: 511 (void)putchar('='); 512 return (1); 513 case S_IFWHT: 514 (void)putchar('%'); 515 return (1); 516 default: 517 break; 518 } 519 if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) { 520 (void)putchar('*'); 521 return (1); 522 } 523 return (0); 524 } 525 526 #ifdef COLORLS 527 static int 528 putch(int c) 529 { 530 (void)putchar(c); 531 return 0; 532 } 533 534 static int 535 writech(int c) 536 { 537 char tmp = (char)c; 538 539 (void)write(STDOUT_FILENO, &tmp, 1); 540 return 0; 541 } 542 543 static void 544 printcolor_termcap(Colors c) 545 { 546 char *ansiseq; 547 548 if (colors[c].bold) 549 tputs(enter_bold, 1, putch); 550 if (colors[c].underline) 551 tputs(enter_underline, 1, putch); 552 553 if (colors[c].num[0] != -1) { 554 ansiseq = tgoto(ansi_fgcol, 0, colors[c].num[0]); 555 if (ansiseq) 556 tputs(ansiseq, 1, putch); 557 } 558 if (colors[c].num[1] != -1) { 559 ansiseq = tgoto(ansi_bgcol, 0, colors[c].num[1]); 560 if (ansiseq) 561 tputs(ansiseq, 1, putch); 562 } 563 } 564 565 static void 566 printcolor_ansi(Colors c) 567 { 568 569 printf("\033["); 570 571 if (colors[c].bold) 572 printf("1"); 573 if (colors[c].underline) 574 printf(";4"); 575 if (colors[c].num[0] != -1) 576 printf(";3%d", colors[c].num[0]); 577 if (colors[c].num[1] != -1) 578 printf(";4%d", colors[c].num[1]); 579 printf("m"); 580 } 581 582 static void 583 printcolor(Colors c) 584 { 585 586 if (explicitansi) 587 printcolor_ansi(c); 588 else 589 printcolor_termcap(c); 590 } 591 592 static void 593 endcolor_termcap(int sig) 594 { 595 596 tputs(ansi_coloff, 1, sig ? writech : putch); 597 tputs(attrs_off, 1, sig ? writech : putch); 598 } 599 600 static void 601 endcolor_ansi(void) 602 { 603 604 printf("\33[m"); 605 } 606 607 static void 608 endcolor(int sig) 609 { 610 611 if (explicitansi) 612 endcolor_ansi(); 613 else 614 endcolor_termcap(sig); 615 } 616 617 static int 618 colortype(mode_t mode) 619 { 620 switch (mode & S_IFMT) { 621 case S_IFDIR: 622 if (mode & S_IWOTH) 623 if (mode & S_ISTXT) 624 printcolor(C_WSDIR); 625 else 626 printcolor(C_WDIR); 627 else 628 printcolor(C_DIR); 629 return (1); 630 case S_IFLNK: 631 printcolor(C_LNK); 632 return (1); 633 case S_IFSOCK: 634 printcolor(C_SOCK); 635 return (1); 636 case S_IFIFO: 637 printcolor(C_FIFO); 638 return (1); 639 case S_IFBLK: 640 printcolor(C_BLK); 641 return (1); 642 case S_IFCHR: 643 printcolor(C_CHR); 644 return (1); 645 default:; 646 } 647 if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) { 648 if (mode & S_ISUID) 649 printcolor(C_SUID); 650 else if (mode & S_ISGID) 651 printcolor(C_SGID); 652 else 653 printcolor(C_EXEC); 654 return (1); 655 } 656 return (0); 657 } 658 659 void 660 parsecolors(const char *cs) 661 { 662 int i; 663 int j; 664 size_t len; 665 char c[2]; 666 short legacy_warn = 0; 667 668 if (cs == NULL) 669 cs = ""; /* LSCOLORS not set */ 670 len = strlen(cs); 671 for (i = 0; i < (int)C_NUMCOLORS; i++) { 672 colors[i].bold = false; 673 colors[i].underline = false; 674 675 if (len <= 2 * (size_t)i) { 676 c[0] = defcolors[2 * i]; 677 c[1] = defcolors[2 * i + 1]; 678 } else { 679 c[0] = cs[2 * i]; 680 c[1] = cs[2 * i + 1]; 681 } 682 for (j = 0; j < 2; j++) { 683 /* Legacy colours used 0-7 */ 684 if (c[j] >= '0' && c[j] <= '7') { 685 colors[i].num[j] = c[j] - '0'; 686 if (!legacy_warn) { 687 warnx("LSCOLORS should use " 688 "characters a-h instead of 0-9 (" 689 "see the manual page)"); 690 } 691 legacy_warn = 1; 692 } else if (c[j] >= 'a' && c[j] <= 'h') 693 colors[i].num[j] = c[j] - 'a'; 694 else if (c[j] >= 'A' && c[j] <= 'H') { 695 colors[i].num[j] = c[j] - 'A'; 696 if (j == 1) 697 colors[i].underline = true; 698 else 699 colors[i].bold = true; 700 } else if (tolower((unsigned char)c[j]) == 'x') { 701 if (j == 1 && c[j] == 'X') 702 colors[i].underline = true; 703 colors[i].num[j] = -1; 704 } else { 705 warnx("invalid character '%c' in LSCOLORS" 706 " env var", c[j]); 707 colors[i].num[j] = -1; 708 } 709 } 710 } 711 } 712 713 void 714 colorquit(int sig) 715 { 716 endcolor(sig); 717 718 (void)signal(sig, SIG_DFL); 719 (void)kill(getpid(), sig); 720 } 721 722 #endif /* COLORLS */ 723 724 static void 725 printlink(const FTSENT *p) 726 { 727 int lnklen; 728 char name[MAXPATHLEN + 1]; 729 char path[MAXPATHLEN + 1]; 730 731 if (p->fts_level == FTS_ROOTLEVEL) 732 (void)snprintf(name, sizeof(name), "%s", p->fts_name); 733 else 734 (void)snprintf(name, sizeof(name), 735 "%s/%s", p->fts_parent->fts_accpath, p->fts_name); 736 if ((lnklen = readlink(name, path, sizeof(path) - 1)) == -1) { 737 (void)fprintf(stderr, "\nls: %s: %s\n", name, strerror(errno)); 738 return; 739 } 740 path[lnklen] = '\0'; 741 (void)printf(" -> "); 742 (void)printname(path); 743 } 744 745 static void 746 printsize(size_t width, off_t bytes) 747 { 748 749 if (f_humanval) { 750 /* 751 * Reserve one space before the size and allocate room for 752 * the trailing '\0'. 753 */ 754 char buf[HUMANVALSTR_LEN - 1 + 1]; 755 756 humanize_number(buf, sizeof(buf), (int64_t)bytes, "", 757 HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL); 758 (void)printf("%*s ", (u_int)width, buf); 759 } else if (f_thousands) { /* with commas */ 760 /* This format assignment needed to work round gcc bug. */ 761 const char *format = "%*j'd "; 762 (void)printf(format, (u_int)width, bytes); 763 } else 764 (void)printf("%*jd ", (u_int)width, bytes); 765 } 766 767 /* 768 * Add a + after the standard rwxrwxrwx mode if the file has an 769 * ACL. strmode() reserves space at the end of the string. 770 */ 771 static void 772 aclmode(char *buf, const FTSENT *p) 773 { 774 char name[MAXPATHLEN + 1]; 775 int ret, trivial; 776 static dev_t previous_dev = NODEV; 777 static int supports_acls = -1; 778 static int type = ACL_TYPE_ACCESS; 779 acl_t facl; 780 781 /* 782 * XXX: ACLs are not supported on whiteouts and device files 783 * residing on UFS. 784 */ 785 if (S_ISCHR(p->fts_statp->st_mode) || S_ISBLK(p->fts_statp->st_mode) || 786 S_ISWHT(p->fts_statp->st_mode)) 787 return; 788 789 if (previous_dev == p->fts_statp->st_dev && supports_acls == 0) 790 return; 791 792 if (p->fts_level == FTS_ROOTLEVEL) 793 snprintf(name, sizeof(name), "%s", p->fts_name); 794 else 795 snprintf(name, sizeof(name), "%s/%s", 796 p->fts_parent->fts_accpath, p->fts_name); 797 798 if (previous_dev != p->fts_statp->st_dev) { 799 previous_dev = p->fts_statp->st_dev; 800 supports_acls = 0; 801 802 ret = lpathconf(name, _PC_ACL_NFS4); 803 if (ret > 0) { 804 type = ACL_TYPE_NFS4; 805 supports_acls = 1; 806 } else if (ret < 0 && errno != EINVAL) { 807 warn("%s", name); 808 return; 809 } 810 if (supports_acls == 0) { 811 ret = lpathconf(name, _PC_ACL_EXTENDED); 812 if (ret > 0) { 813 type = ACL_TYPE_ACCESS; 814 supports_acls = 1; 815 } else if (ret < 0 && errno != EINVAL) { 816 warn("%s", name); 817 return; 818 } 819 } 820 } 821 if (supports_acls == 0) 822 return; 823 facl = acl_get_link_np(name, type); 824 if (facl == NULL) { 825 warn("%s", name); 826 return; 827 } 828 if (acl_is_trivial_np(facl, &trivial)) { 829 acl_free(facl); 830 warn("%s", name); 831 return; 832 } 833 if (!trivial) 834 buf[10] = '+'; 835 acl_free(facl); 836 } 837