ls/print.c

   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
  37 #if 0
  38 #ifndef lint
  39 static char sccsid[] = "@(#)print.c     8.4 (Berkeley) 4/17/94";
  40 #endif /* not lint */
  41 #endif
  42 #include <sys/cdefs.h>
  43 __RCSID("$FreeBSD: src/bin/ls/print.c,v 1.57 2002/08/29 14:29:09 keramida Exp $");
  44
  45 #include <sys/param.h>
  46 #include <sys/stat.h>
  47 #ifdef __APPLE__
  48 #include <sys/acl.h>
  49 #include <sys/xattr.h>
  50 #include <sys/types.h>
  51 #include <grp.h>
  52 #include <pwd.h>
  53 #if !TARGET_OS_EMBEDDED
  54 #include <membership.h>
  55 #include <membershipPriv.h>
  56 #endif
  57 #include <uuid/uuid.h>
  58 #endif
  59
  60 #include <err.h>
  61 #include <errno.h>
  62 #include <fts.h>
  63 #include <math.h>
  64 #include <langinfo.h>
  65 #include <stdio.h>
  66 #include <stdlib.h>
  67 #include <string.h>
  68 #include <time.h>
  69 #include <unistd.h>
  70 #ifdef COLORLS
  71 #include <ctype.h>
  72 #include <termcap.h>
  73 #include <signal.h>
  74 #endif
  75
  76 #ifdef __APPLE__
  77 #include <get_compat.h>
  78 #else
  79 #define COMPAT_MODE(a,b) (1)
  80 #endif /* __APPLE__ */
  81
  82 #include "ls.h"
  83 #include "extern.h"
  84
  85 static int      printaname(FTSENT *, u_long, u_long);
  86 static void     printlink(FTSENT *);
  87 static void     printtime(time_t);
  88 static int      printtype(u_int);
  89 static void     printsize(size_t, off_t);
  90 #ifdef COLORLS
  91 static void     endcolor(int);
  92 static int      colortype(mode_t);
  93 #endif
  94
  95 #define IS_NOPRINT(p)   ((p)->fts_number == NO_PRINT)
  96
  97 #ifdef COLORLS
  98 /* Most of these are taken from <sys/stat.h> */
  99 typedef enum Colors {
 100         C_DIR,                  /* directory */
 101         C_LNK,                  /* symbolic link */
 102         C_SOCK,                 /* socket */
 103         C_FIFO,                 /* pipe */
 104         C_EXEC,                 /* executable */
 105         C_BLK,                  /* block special */
 106         C_CHR,                  /* character special */
 107         C_SUID,                 /* setuid executable */
 108         C_SGID,                 /* setgid executable */
 109         C_WSDIR,                /* directory writeble to others, with sticky
 110                                  * bit */
 111         C_WDIR,                 /* directory writeble to others, without
 112                                  * sticky bit */
 113         C_NUMCOLORS             /* just a place-holder */
 114 } Colors;
 115
 116 static const char *defcolors = "exfxcxdxbxegedabagacad";
 117
 118 /* colors for file types */
 119 static struct {
 120         int     num[2];
 121         int     bold;
 122 } colors[C_NUMCOLORS];
 123 #endif
 124
 125 void
 126 printscol(DISPLAY *dp)
 127 {
 128         FTSENT *p;
 129
 130         if (COMPAT_MODE("bin/ls", "Unix2003")) {
 131                 if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size))
 132                         (void)printf("total %qu\n", (u_int64_t)howmany(dp->btotal, blocksize));
 133         }
 134
 135         for (p = dp->list; p; p = p->fts_link) {
 136                 if (IS_NOPRINT(p))
 137                         continue;
 138                 (void)printaname(p, dp->s_inode, dp->s_block);
 139                 (void)putchar('\n');
 140         }
 141 }
 142
 143 /*
 144  * print name in current style
 145  */
 146 static int
 147 printname(const char *name)
 148 {
 149         if (f_octal || f_octal_escape)
 150                 return prn_octal(name);
 151         else if (f_nonprint)
 152                 return prn_printable(name);
 153         else
 154                 return prn_normal(name);
 155 }
 156
 157 /*
 158  * print access control list
 159  */
 160 static struct {
 161         acl_perm_t      perm;
 162         char            *name;
 163         int             flags;
 164 #define ACL_PERM_DIR    (1<<0)
 165 #define ACL_PERM_FILE   (1<<1)
 166 } acl_perms[] = {
 167         {ACL_READ_DATA,         "read",         ACL_PERM_FILE},
 168         {ACL_LIST_DIRECTORY,    "list",         ACL_PERM_DIR},
 169         {ACL_WRITE_DATA,        "write",        ACL_PERM_FILE},
 170         {ACL_ADD_FILE,          "add_file",     ACL_PERM_DIR},
 171         {ACL_EXECUTE,           "execute",      ACL_PERM_FILE},
 172         {ACL_SEARCH,            "search",       ACL_PERM_DIR},
 173         {ACL_DELETE,            "delete",       ACL_PERM_FILE | ACL_PERM_DIR},
 174         {ACL_APPEND_DATA,       "append",       ACL_PERM_FILE},
 175         {ACL_ADD_SUBDIRECTORY,  "add_subdirectory", ACL_PERM_DIR},
 176         {ACL_DELETE_CHILD,      "delete_child", ACL_PERM_DIR},
 177         {ACL_READ_ATTRIBUTES,   "readattr",     ACL_PERM_FILE | ACL_PERM_DIR},
 178         {ACL_WRITE_ATTRIBUTES,  "writeattr",    ACL_PERM_FILE | ACL_PERM_DIR},
 179         {ACL_READ_EXTATTRIBUTES, "readextattr", ACL_PERM_FILE | ACL_PERM_DIR},
 180         {ACL_WRITE_EXTATTRIBUTES, "writeextattr", ACL_PERM_FILE | ACL_PERM_DIR},
 181         {ACL_READ_SECURITY,     "readsecurity", ACL_PERM_FILE | ACL_PERM_DIR},
 182         {ACL_WRITE_SECURITY,    "writesecurity", ACL_PERM_FILE | ACL_PERM_DIR},
 183         {ACL_CHANGE_OWNER,      "chown",        ACL_PERM_FILE | ACL_PERM_DIR},
 184         {0, NULL, 0}
 185 };
 186
 187 static struct {
 188         acl_flag_t      flag;
 189         char            *name;
 190         int             flags;
 191 } acl_flags[] = {
 192         {ACL_ENTRY_FILE_INHERIT,        "file_inherit",         ACL_PERM_DIR},
 193         {ACL_ENTRY_DIRECTORY_INHERIT,   "directory_inherit",    ACL_PERM_DIR},
 194         {ACL_ENTRY_LIMIT_INHERIT,       "limit_inherit",        ACL_PERM_FILE | ACL_PERM_DIR},
 195         {ACL_ENTRY_ONLY_INHERIT,        "only_inherit",         ACL_PERM_DIR},
 196         {0, NULL, 0}
 197 };
 198
 199 static char *
 200 uuid_to_name(uuid_t *uu)
 201 {
 202 #if TARGET_OS_EMBEDDED
 203   return strdup("<UNKNOWN>");
 204 #else  /* !TARGET_OS_EMBEDDED */
 205   int is_gid = -1;
 206   struct group *tgrp = NULL;
 207   struct passwd *tpass = NULL;
 208   char *name = NULL;
 209   uid_t id;
 210
 211
 212 #define MAXNAMETAG (MAXLOGNAME + 6) /* + strlen("group:") */
 213   name = (char *) malloc(MAXNAMETAG);
 214
 215   if (NULL == name)
 216           err(1, "malloc");
 217
 218         if (!f_numericonly) {
 219   if (0 != mbr_uuid_to_id(*uu, &id, &is_gid))
 220           goto errout;
 221         }
 222
 223   switch (is_gid) {
 224   case ID_TYPE_UID:
 225           tpass = getpwuid(id);
 226           if (!tpass) {
 227                   goto errout;
 228           }
 229           snprintf(name, MAXNAMETAG, "%s:%s", "user", tpass->pw_name);
 230           break;
 231   case ID_TYPE_GID:
 232           tgrp = getgrgid((gid_t) id);
 233           if (!tgrp) {
 234                   goto errout;
 235           }
 236           snprintf(name, MAXNAMETAG, "%s:%s", "group", tgrp->gr_name);
 237           break;
 238   default:
 239                 goto errout;
 240   }
 241   return name;
 242  errout:
 243         if (0 != mbr_uuid_to_string(*uu, name)) {
 244                 fprintf(stderr, "Unable to translate qualifier on ACL\n");
 245                 strcpy(name, "<UNKNOWN>");
 246         }
 247   return name;
 248 #endif  /* !TARGET_OS_EMBEDDED */
 249 }
 250
 251 static void
 252 printxattr(DISPLAY *dp, char *filename, ssize_t xattr)
 253 {
 254         int flags = XATTR_NOFOLLOW;
 255         char *buf = malloc(xattr);
 256
 257         if (NULL == buf)
 258                 err(1, "malloc");
 259         if (listxattr(filename, buf, xattr, flags) > 0) {
 260                 char *name;
 261                 for (name = buf; name < buf+xattr; name += strlen(name) + 1) {
 262                         ssize_t size = getxattr(filename, name, 0, 0, 0, flags);
 263                         putchar('\t');
 264                         printname(name);
 265                         putchar('\t');
 266                         printsize(dp->s_size, size);
 267                         putchar('\n');
 268                 }
 269         }
 270         free(buf);
 271 }
 272
 273 static void
 274 printacl(acl_t acl, int isdir)
 275 {
 276         acl_entry_t     entry = NULL;
 277         int             index;
 278         uuid_t          *applicable;
 279         char            *name = NULL;
 280         acl_tag_t       tag;
 281         acl_flagset_t   flags;
 282         acl_permset_t   perms;
 283         char            *type;
 284         int             i, first;
 285
 286
 287         for (index = 0;
 288              acl_get_entry(acl, entry == NULL ? ACL_FIRST_ENTRY : ACL_NEXT_ENTRY, &entry) == 0;
 289              index++) {
 290                 if ((applicable = (uuid_t *) acl_get_qualifier(entry)) == NULL)
 291                         continue;
 292                 if (acl_get_tag_type(entry, &tag) != 0)
 293                         continue;
 294                 if (acl_get_flagset_np(entry, &flags) != 0)
 295                         continue;
 296                 if (acl_get_permset(entry, &perms) != 0)
 297                         continue;
 298                 name = uuid_to_name(applicable);
 299                 acl_free(applicable);
 300
 301                 switch(tag) {
 302                 case ACL_EXTENDED_ALLOW:
 303                         type = "allow";
 304                         break;
 305                 case ACL_EXTENDED_DENY:
 306                         type = "deny";
 307                         break;
 308                 default:
 309                         type = "unknown";
 310                 }
 311
 312                 (void)printf(" %d: %s%s %s ",
 313                     index,
 314                     name,
 315                     acl_get_flag_np(flags, ACL_ENTRY_INHERITED) ? " inherited" : "",
 316                     type);
 317
 318                 if (name)
 319                         free(name);
 320
 321                 for (i = 0, first = 0; acl_perms[i].name != NULL; i++) {
 322                         if (acl_get_perm_np(perms, acl_perms[i].perm) == 0)
 323                                 continue;
 324                         if (!(acl_perms[i].flags & (isdir ? ACL_PERM_DIR : ACL_PERM_FILE)))
 325                                 continue;
 326                         (void)printf("%s%s", first++ ? "," : "", acl_perms[i].name);
 327                 }
 328                 for (i = 0; acl_flags[i].name != NULL; i++) {
 329                         if (acl_get_flag_np(flags, acl_flags[i].flag) == 0)
 330                                 continue;
 331                         if (!(acl_flags[i].flags & (isdir ? ACL_PERM_DIR : ACL_PERM_FILE)))
 332                                 continue;
 333                         (void)printf("%s%s", first++ ? "," : "", acl_flags[i].name);
 334                 }
 335
 336                 (void)putchar('\n');
 337         }
 338
 339 }
 340
 341 void
 342 printlong(DISPLAY *dp)
 343 {
 344         struct stat *sp;
 345         FTSENT *p;
 346         NAMES *np;
 347         char buf[20];
 348 #ifdef __APPLE__
 349         acl_t acl = NULL;
 350         acl_entry_t dummy;
 351         char full_path[MAXPATHLEN];
 352         char *filename;
 353         ssize_t xattr = 0;
 354         char str[2];
 355 #endif
 356 #ifdef COLORLS
 357         int color_printed = 0;
 358 #endif
 359
 360         if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size))
 361                 (void)printf("total %qu\n", (u_int64_t)howmany(dp->btotal, blocksize));
 362
 363         for (p = dp->list; p; p = p->fts_link) {
 364                 if (IS_NOPRINT(p))
 365                         continue;
 366                 sp = p->fts_statp;
 367                 if (f_inode)
 368 #if _DARWIN_FEATURE_64_BIT_INODE
 369                         (void)printf("%*llu ", dp->s_inode, (u_quad_t)sp->st_ino);
 370 #else
 371                         (void)printf("%*lu ", dp->s_inode, (u_long)sp->st_ino);
 372 #endif
 373                 if (f_size)
 374                         (void)printf("%*qu ",
 375                             dp->s_block, (u_int64_t)howmany(sp->st_blocks, blocksize));
 376                 strmode(sp->st_mode, buf);
 377                 np = p->fts_pointer;
 378 #ifdef __APPLE__
 379                 buf[10] = '\0'; /* make +/@ abut the mode */
 380                 filename = p->fts_name;
 381                 if (p->fts_level != FTS_ROOTLEVEL)
 382                 {
 383                     snprintf(full_path, sizeof full_path, "%s/%s",
 384                             p->fts_parent->fts_accpath, p->fts_name);
 385                     filename = full_path;
 386                 }
 387                 /* symlinks can not have ACLs */
 388                 acl = acl_get_link_np(filename, ACL_TYPE_EXTENDED);
 389                 if (acl && acl_get_entry(acl, ACL_FIRST_ENTRY, &dummy) == -1) {
 390                         acl_free(acl);
 391                         acl = NULL;
 392                 }
 393                 xattr = listxattr(filename, NULL, 0, XATTR_NOFOLLOW);
 394                 if (xattr < 0)
 395                         xattr = 0;
 396                 str[1] = '\0';
 397                 if (xattr > 0)
 398                         str[0] = '@';
 399                 else if (acl != NULL)
 400                         str[0] = '+';
 401                 else
 402                         str[0] = ' ';
 403 #endif /* __APPLE__ */
 404                 if (f_group && f_owner) {       /* means print neither */
 405 #ifdef __APPLE__
 406                         (void)printf("%s%s %*u   ", buf, str, dp->s_nlink,
 407                                      sp->st_nlink);
 408 #else  /* ! __APPLE__ */
 409                         (void)printf("%s %*u   ", buf, dp->s_nlink,
 410                                      sp->st_nlink);
 411 #endif /* __APPLE__ */
 412                 }
 413                 else if (f_group) {
 414 #ifdef __APPLE__
 415                         (void)printf("%s%s %*u %-*s  ", buf, str, dp->s_nlink,
 416                                      sp->st_nlink, dp->s_group, np->group);
 417 #else  /* ! __APPLE__ */
 418                         (void)printf("%s %*u %-*s  ", buf, dp->s_nlink,
 419                                      sp->st_nlink, dp->s_group, np->group);
 420 #endif /* __APPLE__ */
 421                 }
 422                 else if (f_owner) {
 423 #ifdef __APPLE__
 424                         (void)printf("%s%s %*u %-*s  ", buf, str, dp->s_nlink,
 425                                      sp->st_nlink, dp->s_user, np->user);
 426 #else  /* ! __APPLE__ */
 427                         (void)printf("%s %*u %-*s  ", buf, dp->s_nlink,
 428                                      sp->st_nlink, dp->s_user, np->user);
 429 #endif /* __APPLE__ */
 430                 }
 431                 else {
 432 #ifdef __APPLE__
 433                         (void)printf("%s%s %*u %-*s  %-*s  ", buf, str, dp->s_nlink,
 434                                      sp->st_nlink, dp->s_user, np->user, dp->s_group,
 435                                      np->group);
 436 #else  /* ! __APPLE__ */
 437                         (void)printf("%s %*u %-*s  %-*s  ", buf, dp->s_nlink,
 438                                      sp->st_nlink, dp->s_user, np->user, dp->s_group,
 439                                      np->group);
 440 #endif /* ! __APPLE__ */
 441                 }
 442                 if (f_flags)
 443                         (void)printf("%-*s ", dp->s_flags, np->flags);
 444                 if (S_ISCHR(sp->st_mode) || S_ISBLK(sp->st_mode))
 445                         if (minor(sp->st_rdev) > 255 || minor(sp->st_rdev) < 0)
 446                                 (void)printf("%3d, 0x%08x ",
 447                                     major(sp->st_rdev),
 448                                     (u_int)minor(sp->st_rdev));
 449                         else
 450                                 (void)printf("%3d, %3d ",
 451                                     major(sp->st_rdev), minor(sp->st_rdev));
 452                 else if (dp->bcfile)
 453                         (void)printf("%*s%*qu ",
 454                             8 - dp->s_size, "", dp->s_size, (u_int64_t)sp->st_size);
 455                 else
 456                         printsize(dp->s_size, sp->st_size);
 457                 if (f_accesstime)
 458                         printtime(sp->st_atime);
 459                 else if (f_statustime)
 460                         printtime(sp->st_ctime);
 461                 else
 462                         printtime(sp->st_mtime);
 463 #ifdef COLORLS
 464                 if (f_color)
 465                         color_printed = colortype(sp->st_mode);
 466 #endif
 467                 (void)printname(p->fts_name);
 468 #ifdef COLORLS
 469                 if (f_color && color_printed)
 470                         endcolor(0);
 471 #endif
 472                 if (f_type)
 473                         (void)printtype(sp->st_mode);
 474                 if (S_ISLNK(sp->st_mode))
 475                         printlink(p);
 476                 (void)putchar('\n');
 477 #ifdef __APPLE__
 478                 if (f_xattr && xattr) {
 479                         printxattr(dp, filename, xattr);
 480                 }
 481                 if (acl != NULL) {
 482                         if (f_acl)
 483                                 printacl(acl, S_ISDIR(sp->st_mode));
 484                         acl_free(acl);
 485                         acl = NULL;
 486                 }
 487 #endif /* __APPLE__ */
 488         }
 489 }
 490
 491 void
 492 printstream(DISPLAY *dp)
 493 {
 494         FTSENT *p;
 495         extern int termwidth;
 496         int chcnt;
 497
 498         for (p = dp->list, chcnt = 0; p; p = p->fts_link) {
 499                 if (p->fts_number == NO_PRINT)
 500                         continue;
 501                 if (strlen(p->fts_name) + chcnt +
 502                     (p->fts_link ? 2 : 0) >= (unsigned)termwidth) {
 503                         putchar('\n');
 504                         chcnt = 0;
 505                 }
 506                 chcnt += printaname(p, dp->s_inode, dp->s_block);
 507                 if (p->fts_link) {
 508                         printf(", ");
 509                         chcnt += 2;
 510                 }
 511         }
 512         if (chcnt)
 513                 putchar('\n');
 514 }
 515
 516 void
 517 printcol(DISPLAY *dp)
 518 {
 519         extern int termwidth;
 520         static FTSENT **array;
 521         static int lastentries = -1;
 522         FTSENT *p;
 523         int base;
 524         int chcnt;
 525         int cnt;
 526         int col;
 527         int colwidth;
 528         int endcol;
 529         int num;
 530         int numcols;
 531         int numrows;
 532         int row;
 533         int tabwidth;
 534
 535         if (f_notabs)
 536                 tabwidth = 1;
 537         else
 538                 tabwidth = 8;
 539
 540         /*
 541          * Have to do random access in the linked list -- build a table
 542          * of pointers.
 543          */
 544         if (dp->entries > lastentries) {
 545                 lastentries = dp->entries;
 546                 if ((array =
 547                     realloc(array, dp->entries * sizeof(FTSENT *))) == NULL) {
 548                         warn(NULL);
 549                         printscol(dp);
 550                 }
 551         }
 552         for (p = dp->list, num = 0; p; p = p->fts_link)
 553                 if (p->fts_number != NO_PRINT)
 554                         array[num++] = p;
 555
 556         colwidth = dp->maxlen;
 557         if (f_inode)
 558                 colwidth += dp->s_inode + 1;
 559         if (f_size)
 560                 colwidth += dp->s_block + 1;
 561         if (f_type)
 562                 colwidth += 1;
 563
 564         colwidth = (colwidth + tabwidth) & ~(tabwidth - 1);
 565         if (termwidth < 2 * colwidth) {
 566                 printscol(dp);
 567                 return;
 568         }
 569         numcols = termwidth / colwidth;
 570         numrows = num / numcols;
 571         if (num % numcols)
 572                 ++numrows;
 573
 574         if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size))
 575                 (void)printf("total %qu\n", (u_int64_t)howmany(dp->btotal, blocksize));
 576
 577         base = 0;
 578         for (row = 0; row < numrows; ++row) {
 579                 endcol = colwidth;
 580                 if (!f_sortacross)
 581                         base = row;
 582                 for (col = 0, chcnt = 0; col < numcols; ++col) {
 583                         chcnt += printaname(array[base], dp->s_inode,
 584                             dp->s_block);
 585                         if (f_sortacross)
 586                                 base++;
 587                         else
 588                                 base += numrows;
 589                         if (base >= num)
 590                                 break;
 591                         while ((cnt = ((chcnt + tabwidth) & ~(tabwidth - 1)))
 592                             <= endcol) {
 593                                 if (f_sortacross && col + 1 >= numcols)
 594                                         break;
 595                                 (void)putchar(f_notabs ? ' ' : '\t');
 596                                 chcnt = cnt;
 597                         }
 598                         endcol += colwidth;
 599                 }
 600                 (void)putchar('\n');
 601         }
 602 }
 603
 604 /*
 605  * print [inode] [size] name
 606  * return # of characters printed, no trailing characters.
 607  */
 608 static int
 609 printaname(FTSENT *p, u_long inodefield, u_long sizefield)
 610 {
 611         struct stat *sp;
 612         int chcnt;
 613 #ifdef COLORLS
 614         int color_printed = 0;
 615 #endif
 616
 617         sp = p->fts_statp;
 618         chcnt = 0;
 619         if (f_inode)
 620                 chcnt += printf("%*lu ", (int)inodefield, (u_long)sp->st_ino);
 621         if (f_size)
 622                 chcnt += printf("%*qu ",
 623                     (int)sizefield, (u_int64_t)howmany(sp->st_blocks, blocksize));
 624 #ifdef COLORLS
 625         if (f_color)
 626                 color_printed = colortype(sp->st_mode);
 627 #endif
 628         chcnt += printname(p->fts_name);
 629 #ifdef COLORLS
 630         if (f_color && color_printed)
 631                 endcolor(0);
 632 #endif
 633         if (f_type)
 634                 chcnt += printtype(sp->st_mode);
 635         return (chcnt);
 636 }
 637
 638 static void
 639 printtime(time_t ftime)
 640 {
 641         char longstring[80];
 642         static time_t now;
 643         const char *format;
 644         static int d_first = -1;
 645
 646         if (d_first < 0)
 647                 d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
 648         if (now == 0)
 649                 now = time(NULL);
 650
 651 #define SIXMONTHS       ((365 / 2) * 86400)
 652         if (f_sectime)
 653                 /* mmm dd hh:mm:ss yyyy || dd mmm hh:mm:ss yyyy */
 654                 format = d_first ? "%e %b %T %Y " : "%b %e %T %Y ";
 655         else if (COMPAT_MODE("bin/ls", "Unix2003")) {
 656                 if (ftime + SIXMONTHS > now && ftime <= now)
 657                         /* mmm dd hh:mm || dd mmm hh:mm */
 658                         format = d_first ? "%e %b %R " : "%b %e %R ";
 659                 else
 660                         /* mmm dd  yyyy || dd mmm  yyyy */
 661                         format = d_first ? "%e %b  %Y " : "%b %e  %Y ";
 662         }
 663         else if (ftime + SIXMONTHS > now && ftime < now + SIXMONTHS)
 664                 /* mmm dd hh:mm || dd mmm hh:mm */
 665                 format = d_first ? "%e %b %R " : "%b %e %R ";
 666         else
 667                 /* mmm dd  yyyy || dd mmm  yyyy */
 668                 format = d_first ? "%e %b  %Y " : "%b %e  %Y ";
 669         strftime(longstring, sizeof(longstring), format, localtime(&ftime));
 670         fputs(longstring, stdout);
 671 }
 672
 673 static int
 674 printtype(u_int mode)
 675 {
 676
 677         if (f_slash) {
 678                 if ((mode & S_IFMT) == S_IFDIR) {
 679                         (void)putchar('/');
 680                         return (1);
 681                 }
 682                 return (0);
 683         }
 684
 685         switch (mode & S_IFMT) {
 686         case S_IFDIR:
 687                 (void)putchar('/');
 688                 return (1);
 689         case S_IFIFO:
 690                 (void)putchar('|');
 691                 return (1);
 692         case S_IFLNK:
 693                 (void)putchar('@');
 694                 return (1);
 695         case S_IFSOCK:
 696                 (void)putchar('=');
 697                 return (1);
 698         case S_IFWHT:
 699                 (void)putchar('%');
 700                 return (1);
 701         default:
 702                 break;
 703         }
 704         if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) {
 705                 (void)putchar('*');
 706                 return (1);
 707         }
 708         return (0);
 709 }
 710
 711 #ifdef COLORLS
 712 static int
 713 putch(int c)
 714 {
 715         (void)putchar(c);
 716         return 0;
 717 }
 718
 719 static int
 720 writech(int c)
 721 {
 722         char tmp = c;
 723
 724         (void)write(STDOUT_FILENO, &tmp, 1);
 725         return 0;
 726 }
 727
 728 static void
 729 printcolor(Colors c)
 730 {
 731         char *ansiseq;
 732
 733         if (colors[c].bold)
 734                 tputs(enter_bold, 1, putch);
 735
 736         if (colors[c].num[0] != -1) {
 737                 ansiseq = tgoto(ansi_fgcol, 0, colors[c].num[0]);
 738                 if (ansiseq)
 739                         tputs(ansiseq, 1, putch);
 740         }
 741         if (colors[c].num[1] != -1) {
 742                 ansiseq = tgoto(ansi_bgcol, 0, colors[c].num[1]);
 743                 if (ansiseq)
 744                         tputs(ansiseq, 1, putch);
 745         }
 746 }
 747
 748 static void
 749 endcolor(int sig)
 750 {
 751         tputs(ansi_coloff, 1, sig ? writech : putch);
 752         tputs(attrs_off, 1, sig ? writech : putch);
 753 }
 754
 755 static int
 756 colortype(mode_t mode)
 757 {
 758         switch (mode & S_IFMT) {
 759         case S_IFDIR:
 760                 if (mode & S_IWOTH)
 761                         if (mode & S_ISTXT)
 762                                 printcolor(C_WSDIR);
 763                         else
 764                                 printcolor(C_WDIR);
 765                 else
 766                         printcolor(C_DIR);
 767                 return (1);
 768         case S_IFLNK:
 769                 printcolor(C_LNK);
 770                 return (1);
 771         case S_IFSOCK:
 772                 printcolor(C_SOCK);
 773                 return (1);
 774         case S_IFIFO:
 775                 printcolor(C_FIFO);
 776                 return (1);
 777         case S_IFBLK:
 778                 printcolor(C_BLK);
 779                 return (1);
 780         case S_IFCHR:
 781                 printcolor(C_CHR);
 782                 return (1);
 783         }
 784         if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) {
 785                 if (mode & S_ISUID)
 786                         printcolor(C_SUID);
 787                 else if (mode & S_ISGID)
 788                         printcolor(C_SGID);
 789                 else
 790                         printcolor(C_EXEC);
 791                 return (1);
 792         }
 793         return (0);
 794 }
 795
 796 void
 797 parsecolors(const char *cs)
 798 {
 799         int i;
 800         int j;
 801         int len;
 802         char c[2];
 803         short legacy_warn = 0;
 804
 805         if (cs == NULL)
 806                 cs = "";        /* LSCOLORS not set */
 807         len = strlen(cs);
 808         for (i = 0; i < C_NUMCOLORS; i++) {
 809                 colors[i].bold = 0;
 810
 811                 if (len <= 2 * i) {
 812                         c[0] = defcolors[2 * i];
 813                         c[1] = defcolors[2 * i + 1];
 814                 } else {
 815                         c[0] = cs[2 * i];
 816                         c[1] = cs[2 * i + 1];
 817                 }
 818                 for (j = 0; j < 2; j++) {
 819                         /* Legacy colours used 0-7 */
 820                         if (c[j] >= '0' && c[j] <= '7') {
 821                                 colors[i].num[j] = c[j] - '0';
 822                                 if (!legacy_warn) {
 823                                         fprintf(stderr,
 824                                             "warn: LSCOLORS should use "
 825                                             "characters a-h instead of 0-9 ("
 826                                             "see the manual page)\n");
 827                                 }
 828                                 legacy_warn = 1;
 829                         } else if (c[j] >= 'a' && c[j] <= 'h')
 830                                 colors[i].num[j] = c[j] - 'a';
 831                         else if (c[j] >= 'A' && c[j] <= 'H') {
 832                                 colors[i].num[j] = c[j] - 'A';
 833                                 colors[i].bold = 1;
 834                         } else if (tolower((unsigned char)c[j] == 'x'))
 835                                 colors[i].num[j] = -1;
 836                         else {
 837                                 fprintf(stderr,
 838                                     "error: invalid character '%c' in LSCOLORS"
 839                                     " env var\n", c[j]);
 840                                 colors[i].num[j] = -1;
 841                         }
 842                 }
 843         }
 844 }
 845
 846 void
 847 colorquit(int sig)
 848 {
 849         endcolor(sig);
 850
 851         (void)signal(sig, SIG_DFL);
 852         (void)kill(getpid(), sig);
 853 }
 854
 855 #endif /* COLORLS */
 856
 857 static void
 858 printlink(FTSENT *p)
 859 {
 860         int lnklen;
 861         char name[MAXPATHLEN + 1];
 862         char path[MAXPATHLEN + 1];
 863
 864         if (p->fts_level == FTS_ROOTLEVEL)
 865                 (void)snprintf(name, sizeof(name), "%s", p->fts_name);
 866         else
 867                 (void)snprintf(name, sizeof(name),
 868                     "%s/%s", p->fts_parent->fts_accpath, p->fts_name);
 869         if ((lnklen = readlink(name, path, sizeof(path) - 1)) == -1) {
 870                 (void)fprintf(stderr, "\nls: %s: %s\n", name, strerror(errno));
 871                 return;
 872         }
 873         path[lnklen] = '\0';
 874         (void)printf(" -> ");
 875         (void)printname(path);
 876 }
 877
 878 static void
 879 printsize(size_t width, off_t bytes)
 880 {
 881
 882   if (f_humanval) {
 883     char buf[5];
 884
 885     humanize_number(buf, sizeof(buf), (int64_t)bytes, "",
 886                     HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL);
 887     (void)printf("%5s ", buf);
 888   } else
 889     (void)printf("%*jd ", (u_int)width, bytes);
 890 }