release/src/router/busybox/coreutils/stat.c

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  * stat -- display file or file system status
   4  *
   5  * Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation.
   6  * Copyright (C) 2005 by Erik Andersen <andersen@codepoet.org>
   7  * Copyright (C) 2005 by Mike Frysinger <vapier@gentoo.org>
   8  * Copyright (C) 2006 by Yoshinori Sato <ysato@users.sourceforge.jp>
   9  *
  10  * Written by Michael Meskes
  11  * Taken from coreutils and turned into a busybox applet by Mike Frysinger
  12  *
  13  * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  14  */
  15
  16 //usage:#define stat_trivial_usage
  17 //usage:       "[OPTIONS] FILE..."
  18 //usage:#define stat_full_usage "\n\n"
  19 //usage:       "Display file (default) or filesystem status\n"
  20 //usage:        IF_FEATURE_STAT_FORMAT(
  21 //usage:     "\n        -c fmt  Use the specified format"
  22 //usage:        )
  23 //usage:     "\n        -f      Display filesystem status"
  24 //usage:     "\n        -L      Follow links"
  25 //usage:     "\n        -t      Display info in terse form"
  26 //usage:        IF_SELINUX(
  27 //usage:     "\n        -Z      Print security context"
  28 //usage:        )
  29 //usage:        IF_FEATURE_STAT_FORMAT(
  30 //usage:       "\n\nValid format sequences for files:\n"
  31 //usage:       " %a     Access rights in octal\n"
  32 //usage:       " %A     Access rights in human readable form\n"
  33 //usage:       " %b     Number of blocks allocated (see %B)\n"
  34 //usage:       " %B     The size in bytes of each block reported by %b\n"
  35 //usage:       " %d     Device number in decimal\n"
  36 //usage:       " %D     Device number in hex\n"
  37 //usage:       " %f     Raw mode in hex\n"
  38 //usage:       " %F     File type\n"
  39 //usage:       " %g     Group ID of owner\n"
  40 //usage:       " %G     Group name of owner\n"
  41 //usage:       " %h     Number of hard links\n"
  42 //usage:       " %i     Inode number\n"
  43 //usage:       " %n     File name\n"
  44 //usage:       " %N     File name, with -> TARGET if symlink\n"
  45 //usage:       " %o     I/O block size\n"
  46 //usage:       " %s     Total size, in bytes\n"
  47 //usage:       " %t     Major device type in hex\n"
  48 //usage:       " %T     Minor device type in hex\n"
  49 //usage:       " %u     User ID of owner\n"
  50 //usage:       " %U     User name of owner\n"
  51 //usage:       " %x     Time of last access\n"
  52 //usage:       " %X     Time of last access as seconds since Epoch\n"
  53 //usage:       " %y     Time of last modification\n"
  54 //usage:       " %Y     Time of last modification as seconds since Epoch\n"
  55 //usage:       " %z     Time of last change\n"
  56 //usage:       " %Z     Time of last change as seconds since Epoch\n"
  57 //usage:       "\nValid format sequences for file systems:\n"
  58 //usage:       " %a     Free blocks available to non-superuser\n"
  59 //usage:       " %b     Total data blocks in file system\n"
  60 //usage:       " %c     Total file nodes in file system\n"
  61 //usage:       " %d     Free file nodes in file system\n"
  62 //usage:       " %f     Free blocks in file system\n"
  63 //usage:        IF_SELINUX(
  64 //usage:       " %C     Security context in selinux\n"
  65 //usage:        )
  66 //usage:       " %i     File System ID in hex\n"
  67 //usage:       " %l     Maximum length of filenames\n"
  68 //usage:       " %n     File name\n"
  69 //usage:       " %s     Block size (for faster transfer)\n"
  70 //usage:       " %S     Fundamental block size (for block counts)\n"
  71 //usage:       " %t     Type in hex\n"
  72 //usage:       " %T     Type in human readable form"
  73 //usage:        )
  74
  75 #include "libbb.h"
  76
  77 #define OPT_FILESYS     (1 << 0)
  78 #define OPT_TERSE       (1 << 1)
  79 #define OPT_DEREFERENCE (1 << 2)
  80 #define OPT_SELINUX     (1 << 3)
  81
  82 #if ENABLE_FEATURE_STAT_FORMAT
  83 typedef bool (*statfunc_ptr)(const char *, const char *);
  84 #else
  85 typedef bool (*statfunc_ptr)(const char *);
  86 #endif
  87
  88 static const char *file_type(const struct stat *st)
  89 {
  90         /* See POSIX 1003.1-2001 XCU Table 4-8 lines 17093-17107
  91          * for some of these formats.
  92          * To keep diagnostics grammatical in English, the
  93          * returned string must start with a consonant.
  94          */
  95         if (S_ISREG(st->st_mode))  return st->st_size == 0 ? "regular empty file" : "regular file";
  96         if (S_ISDIR(st->st_mode))  return "directory";
  97         if (S_ISBLK(st->st_mode))  return "block special file";
  98         if (S_ISCHR(st->st_mode))  return "character special file";
  99         if (S_ISFIFO(st->st_mode)) return "fifo";
 100         if (S_ISLNK(st->st_mode))  return "symbolic link";
 101         if (S_ISSOCK(st->st_mode)) return "socket";
 102         if (S_TYPEISMQ(st))        return "message queue";
 103         if (S_TYPEISSEM(st))       return "semaphore";
 104         if (S_TYPEISSHM(st))       return "shared memory object";
 105 #ifdef S_TYPEISTMO
 106         if (S_TYPEISTMO(st))       return "typed memory object";
 107 #endif
 108         return "weird file";
 109 }
 110
 111 static const char *human_time(time_t t)
 112 {
 113         /* Old
 114         static char *str;
 115         str = ctime(&t);
 116         str[strlen(str)-1] = '\0';
 117         return str;
 118         */
 119         /* coreutils 6.3 compat: */
 120
 121         /*static char buf[sizeof("YYYY-MM-DD HH:MM:SS.000000000")] ALIGN1;*/
 122 #define buf bb_common_bufsiz1
 123
 124         strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S.000000000", localtime(&t));
 125         return buf;
 126 #undef buf
 127 }
 128
 129 /* Return the type of the specified file system.
 130  * Some systems have statfvs.f_basetype[FSTYPSZ]. (AIX, HP-UX, and Solaris)
 131  * Others have statfs.f_fstypename[MFSNAMELEN]. (NetBSD 1.5.2)
 132  * Still others have neither and have to get by with f_type (Linux).
 133  */
 134 static const char *human_fstype(uint32_t f_type)
 135 {
 136         static const struct types {
 137                 uint32_t type;
 138                 const char *const fs;
 139         } humantypes[] = {
 140                 { 0xADFF,     "affs" },
 141                 { 0x1Cd1,     "devpts" },
 142                 { 0x137D,     "ext" },
 143                 { 0xEF51,     "ext2" },
 144                 { 0xEF53,     "ext2/ext3" },
 145                 { 0x3153464a, "jfs" },
 146                 { 0x58465342, "xfs" },
 147                 { 0xF995E849, "hpfs" },
 148                 { 0x9660,     "isofs" },
 149                 { 0x4000,     "isofs" },
 150                 { 0x4004,     "isofs" },
 151                 { 0x137F,     "minix" },
 152                 { 0x138F,     "minix (30 char.)" },
 153                 { 0x2468,     "minix v2" },
 154                 { 0x2478,     "minix v2 (30 char.)" },
 155                 { 0x4d44,     "msdos" },
 156                 { 0x4006,     "fat" },
 157                 { 0x564c,     "novell" },
 158                 { 0x6969,     "nfs" },
 159                 { 0x9fa0,     "proc" },
 160                 { 0x517B,     "smb" },
 161                 { 0x012FF7B4, "xenix" },
 162                 { 0x012FF7B5, "sysv4" },
 163                 { 0x012FF7B6, "sysv2" },
 164                 { 0x012FF7B7, "coh" },
 165                 { 0x00011954, "ufs" },
 166                 { 0x012FD16D, "xia" },
 167                 { 0x5346544e, "ntfs" },
 168                 { 0x1021994,  "tmpfs" },
 169                 { 0x52654973, "reiserfs" },
 170                 { 0x28cd3d45, "cramfs" },
 171                 { 0x7275,     "romfs" },
 172                 { 0x858458f6, "romfs" },
 173                 { 0x73717368, "squashfs" },
 174                 { 0x62656572, "sysfs" },
 175                 { 0, "UNKNOWN" }
 176         };
 177
 178         int i;
 179
 180         for (i = 0; humantypes[i].type; ++i)
 181                 if (humantypes[i].type == f_type)
 182                         break;
 183         return humantypes[i].fs;
 184 }
 185
 186 /* "man statfs" says that statfsbuf->f_fsid is a mess */
 187 /* coreutils treats it as an array of ints, most significant first */
 188 static unsigned long long get_f_fsid(const struct statfs *statfsbuf)
 189 {
 190         const unsigned *p = (const void*) &statfsbuf->f_fsid;
 191         unsigned sz = sizeof(statfsbuf->f_fsid) / sizeof(unsigned);
 192         unsigned long long r = 0;
 193
 194         do
 195                 r = (r << (sizeof(unsigned)*8)) | *p++;
 196         while (--sz > 0);
 197         return r;
 198 }
 199
 200 #if ENABLE_FEATURE_STAT_FORMAT
 201 static void strcatc(char *str, char c)
 202 {
 203         int len = strlen(str);
 204         str[len++] = c;
 205         str[len] = '\0';
 206 }
 207
 208 static void printfs(char *pformat, const char *msg)
 209 {
 210         strcatc(pformat, 's');
 211         printf(pformat, msg);
 212 }
 213
 214 /* print statfs info */
 215 static void FAST_FUNC print_statfs(char *pformat, const char m,
 216                 const char *const filename, const void *data
 217                 IF_SELINUX(, security_context_t scontext))
 218 {
 219         const struct statfs *statfsbuf = data;
 220         if (m == 'n') {
 221                 printfs(pformat, filename);
 222         } else if (m == 'i') {
 223                 strcat(pformat, "llx");
 224                 printf(pformat, get_f_fsid(statfsbuf));
 225         } else if (m == 'l') {
 226                 strcat(pformat, "lu");
 227                 printf(pformat, (unsigned long) statfsbuf->f_namelen);
 228         } else if (m == 't') {
 229                 strcat(pformat, "lx");
 230                 printf(pformat, (unsigned long) statfsbuf->f_type); /* no equiv */
 231         } else if (m == 'T') {
 232                 printfs(pformat, human_fstype(statfsbuf->f_type));
 233         } else if (m == 'b') {
 234                 strcat(pformat, "llu");
 235                 printf(pformat, (unsigned long long) statfsbuf->f_blocks);
 236         } else if (m == 'f') {
 237                 strcat(pformat, "llu");
 238                 printf(pformat, (unsigned long long) statfsbuf->f_bfree);
 239         } else if (m == 'a') {
 240                 strcat(pformat, "llu");
 241                 printf(pformat, (unsigned long long) statfsbuf->f_bavail);
 242         } else if (m == 's' || m == 'S') {
 243                 strcat(pformat, "lu");
 244                 printf(pformat, (unsigned long) statfsbuf->f_bsize);
 245         } else if (m == 'c') {
 246                 strcat(pformat, "llu");
 247                 printf(pformat, (unsigned long long) statfsbuf->f_files);
 248         } else if (m == 'd') {
 249                 strcat(pformat, "llu");
 250                 printf(pformat, (unsigned long long) statfsbuf->f_ffree);
 251 # if ENABLE_SELINUX
 252         } else if (m == 'C' && (option_mask32 & OPT_SELINUX)) {
 253                 printfs(pformat, scontext);
 254 # endif
 255         } else {
 256                 strcatc(pformat, 'c');
 257                 printf(pformat, m);
 258         }
 259 }
 260
 261 /* print stat info */
 262 static void FAST_FUNC print_stat(char *pformat, const char m,
 263                 const char *const filename, const void *data
 264                 IF_SELINUX(, security_context_t scontext))
 265 {
 266 #define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
 267         struct stat *statbuf = (struct stat *) data;
 268         struct passwd *pw_ent;
 269         struct group *gw_ent;
 270
 271         if (m == 'n') {
 272                 printfs(pformat, filename);
 273         } else if (m == 'N') {
 274                 strcatc(pformat, 's');
 275                 if (S_ISLNK(statbuf->st_mode)) {
 276                         char *linkname = xmalloc_readlink_or_warn(filename);
 277                         if (linkname == NULL)
 278                                 return;
 279                         printf("'%s' -> '%s'", filename, linkname);
 280                         free(linkname);
 281                 } else {
 282                         printf(pformat, filename);
 283                 }
 284         } else if (m == 'd') {
 285                 strcat(pformat, "llu");
 286                 printf(pformat, (unsigned long long) statbuf->st_dev);
 287         } else if (m == 'D') {
 288                 strcat(pformat, "llx");
 289                 printf(pformat, (unsigned long long) statbuf->st_dev);
 290         } else if (m == 'i') {
 291                 strcat(pformat, "llu");
 292                 printf(pformat, (unsigned long long) statbuf->st_ino);
 293         } else if (m == 'a') {
 294                 strcat(pformat, "lo");
 295                 printf(pformat, (unsigned long) (statbuf->st_mode & (S_ISUID|S_ISGID|S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO)));
 296         } else if (m == 'A') {
 297                 printfs(pformat, bb_mode_string(statbuf->st_mode));
 298         } else if (m == 'f') {
 299                 strcat(pformat, "lx");
 300                 printf(pformat, (unsigned long) statbuf->st_mode);
 301         } else if (m == 'F') {
 302                 printfs(pformat, file_type(statbuf));
 303         } else if (m == 'h') {
 304                 strcat(pformat, "lu");
 305                 printf(pformat, (unsigned long) statbuf->st_nlink);
 306         } else if (m == 'u') {
 307                 strcat(pformat, "lu");
 308                 printf(pformat, (unsigned long) statbuf->st_uid);
 309         } else if (m == 'U') {
 310                 pw_ent = getpwuid(statbuf->st_uid);
 311                 printfs(pformat, (pw_ent != NULL) ? pw_ent->pw_name : "UNKNOWN");
 312         } else if (m == 'g') {
 313                 strcat(pformat, "lu");
 314                 printf(pformat, (unsigned long) statbuf->st_gid);
 315         } else if (m == 'G') {
 316                 gw_ent = getgrgid(statbuf->st_gid);
 317                 printfs(pformat, (gw_ent != NULL) ? gw_ent->gr_name : "UNKNOWN");
 318         } else if (m == 't') {
 319                 strcat(pformat, "lx");
 320                 printf(pformat, (unsigned long) major(statbuf->st_rdev));
 321         } else if (m == 'T') {
 322                 strcat(pformat, "lx");
 323                 printf(pformat, (unsigned long) minor(statbuf->st_rdev));
 324         } else if (m == 's') {
 325                 strcat(pformat, "llu");
 326                 printf(pformat, (unsigned long long) statbuf->st_size);
 327         } else if (m == 'B') {
 328                 strcat(pformat, "lu");
 329                 printf(pformat, (unsigned long) 512); //ST_NBLOCKSIZE
 330         } else if (m == 'b') {
 331                 strcat(pformat, "llu");
 332                 printf(pformat, (unsigned long long) statbuf->st_blocks);
 333         } else if (m == 'o') {
 334                 strcat(pformat, "lu");
 335                 printf(pformat, (unsigned long) statbuf->st_blksize);
 336         } else if (m == 'x') {
 337                 printfs(pformat, human_time(statbuf->st_atime));
 338         } else if (m == 'X') {
 339                 strcat(pformat, TYPE_SIGNED(time_t) ? "ld" : "lu");
 340                 /* note: (unsigned long) would be wrong:
 341                  * imagine (unsigned long64)int32 */
 342                 printf(pformat, (long) statbuf->st_atime);
 343         } else if (m == 'y') {
 344                 printfs(pformat, human_time(statbuf->st_mtime));
 345         } else if (m == 'Y') {
 346                 strcat(pformat, TYPE_SIGNED(time_t) ? "ld" : "lu");
 347                 printf(pformat, (long) statbuf->st_mtime);
 348         } else if (m == 'z') {
 349                 printfs(pformat, human_time(statbuf->st_ctime));
 350         } else if (m == 'Z') {
 351                 strcat(pformat, TYPE_SIGNED(time_t) ? "ld" : "lu");
 352                 printf(pformat, (long) statbuf->st_ctime);
 353 # if ENABLE_SELINUX
 354         } else if (m == 'C' && (option_mask32 & OPT_SELINUX)) {
 355                 printfs(pformat, scontext);
 356 # endif
 357         } else {
 358                 strcatc(pformat, 'c');
 359                 printf(pformat, m);
 360         }
 361 }
 362
 363 static void print_it(const char *masterformat,
 364                 const char *filename,
 365                 void FAST_FUNC (*print_func)(char*, char, const char*, const void* IF_SELINUX(, security_context_t scontext)),
 366                 const void *data
 367                 IF_SELINUX(, security_context_t scontext))
 368 {
 369         /* Create a working copy of the format string */
 370         char *format = xstrdup(masterformat);
 371         /* Add 2 to accomodate our conversion of the stat '%s' format string
 372          * to the printf '%llu' one.  */
 373         char *dest = xmalloc(strlen(format) + 2 + 1);
 374         char *b;
 375
 376         b = format;
 377         while (b) {
 378                 /* Each iteration finds next %spec,
 379                  * prints preceding string and handles found %spec
 380                  */
 381                 size_t len;
 382                 char *p = strchr(b, '%');
 383                 if (!p) {
 384                         /* coreutils 6.3 always prints newline at the end */
 385                         /*fputs(b, stdout);*/
 386                         puts(b);
 387                         break;
 388                 }
 389
 390                 /* dest = "%<modifiers>" */
 391                 len = 1 + strspn(p + 1, "#-+.I 0123456789");
 392                 memcpy(dest, p, len);
 393                 dest[len] = '\0';
 394
 395                 /* print preceding string */
 396                 *p = '\0';
 397                 fputs(b, stdout);
 398
 399                 p += len;
 400                 b = p + 1;
 401                 switch (*p) {
 402                 case '\0':
 403                         b = NULL;
 404                         /* fall through */
 405                 case '%':
 406                         bb_putchar('%');
 407                         break;
 408                 default:
 409                         /* Completes "%<modifiers>" with specifier and printfs */
 410                         print_func(dest, *p, filename, data IF_SELINUX(,scontext));
 411                         break;
 412                 }
 413         }
 414
 415         free(format);
 416         free(dest);
 417 }
 418 #endif  /* FEATURE_STAT_FORMAT */
 419
 420 /* Stat the file system and print what we find.  */
 421 #if !ENABLE_FEATURE_STAT_FORMAT
 422 #define do_statfs(filename, format) do_statfs(filename)
 423 #endif
 424 static bool do_statfs(const char *filename, const char *format)
 425 {
 426         struct statfs statfsbuf;
 427 #if !ENABLE_FEATURE_STAT_FORMAT
 428         const char *format;
 429 #endif
 430 #if ENABLE_SELINUX
 431         security_context_t scontext = NULL;
 432
 433         if (option_mask32 & OPT_SELINUX) {
 434                 if ((option_mask32 & OPT_DEREFERENCE
 435                      ? lgetfilecon(filename, &scontext)
 436                      : getfilecon(filename, &scontext)
 437                     ) < 0
 438                 ) {
 439                         bb_perror_msg(filename);
 440                         return 0;
 441                 }
 442         }
 443 #endif
 444         if (statfs(filename, &statfsbuf) != 0) {
 445                 bb_perror_msg("can't read file system information for '%s'", filename);
 446                 return 0;
 447         }
 448
 449 #if ENABLE_FEATURE_STAT_FORMAT
 450         if (format == NULL) {
 451 # if !ENABLE_SELINUX
 452                 format = (option_mask32 & OPT_TERSE
 453                         ? "%n %i %l %t %s %b %f %a %c %d\n"
 454                         : "  File: \"%n\"\n"
 455                           "    ID: %-8i Namelen: %-7l Type: %T\n"
 456                           "Block size: %-10s\n"
 457                           "Blocks: Total: %-10b Free: %-10f Available: %a\n"
 458                           "Inodes: Total: %-10c Free: %d");
 459 # else
 460                 format = (option_mask32 & OPT_TERSE
 461                         ? (option_mask32 & OPT_SELINUX ? "%n %i %l %t %s %b %f %a %c %d %C\n":
 462                         "%n %i %l %t %s %b %f %a %c %d\n")
 463                         : (option_mask32 & OPT_SELINUX ?
 464                         "  File: \"%n\"\n"
 465                         "    ID: %-8i Namelen: %-7l Type: %T\n"
 466                         "Block size: %-10s\n"
 467                         "Blocks: Total: %-10b Free: %-10f Available: %a\n"
 468                         "Inodes: Total: %-10c Free: %d"
 469                         "  S_context: %C\n":
 470                         "  File: \"%n\"\n"
 471                         "    ID: %-8i Namelen: %-7l Type: %T\n"
 472                         "Block size: %-10s\n"
 473                         "Blocks: Total: %-10b Free: %-10f Available: %a\n"
 474                         "Inodes: Total: %-10c Free: %d\n")
 475                         );
 476 # endif /* SELINUX */
 477         }
 478         print_it(format, filename, print_statfs, &statfsbuf IF_SELINUX(, scontext));
 479 #else /* FEATURE_STAT_FORMAT */
 480         format = (option_mask32 & OPT_TERSE
 481                 ? "%s %llx %lu "
 482                 : "  File: \"%s\"\n"
 483                   "    ID: %-8llx Namelen: %-7lu ");
 484         printf(format,
 485                filename,
 486                get_f_fsid(&statfsbuf),
 487                statfsbuf.f_namelen);
 488
 489         if (option_mask32 & OPT_TERSE)
 490                 printf("%lx ", (unsigned long) statfsbuf.f_type);
 491         else
 492                 printf("Type: %s\n", human_fstype(statfsbuf.f_type));
 493
 494 # if !ENABLE_SELINUX
 495         format = (option_mask32 & OPT_TERSE
 496                 ? "%lu %llu %llu %llu %llu %llu\n"
 497                 : "Block size: %-10lu\n"
 498                   "Blocks: Total: %-10llu Free: %-10llu Available: %llu\n"
 499                   "Inodes: Total: %-10llu Free: %llu\n");
 500         printf(format,
 501                (unsigned long) statfsbuf.f_bsize,
 502                (unsigned long long) statfsbuf.f_blocks,
 503                (unsigned long long) statfsbuf.f_bfree,
 504                (unsigned long long) statfsbuf.f_bavail,
 505                (unsigned long long) statfsbuf.f_files,
 506                (unsigned long long) statfsbuf.f_ffree);
 507 # else
 508         format = (option_mask32 & OPT_TERSE
 509                 ? (option_mask32 & OPT_SELINUX ? "%lu %llu %llu %llu %llu %llu %C\n" : "%lu %llu %llu %llu %llu %llu\n")
 510                 : (option_mask32 & OPT_SELINUX
 511                         ?       "Block size: %-10lu\n"
 512                                 "Blocks: Total: %-10llu Free: %-10llu Available: %llu\n"
 513                                 "Inodes: Total: %-10llu Free: %llu"
 514                                 "S_context: %C\n"
 515                         :       "Block size: %-10lu\n"
 516                                 "Blocks: Total: %-10llu Free: %-10llu Available: %llu\n"
 517                                 "Inodes: Total: %-10llu Free: %llu\n"
 518                         )
 519                 );
 520         printf(format,
 521                 (unsigned long) statfsbuf.f_bsize,
 522                 (unsigned long long) statfsbuf.f_blocks,
 523                 (unsigned long long) statfsbuf.f_bfree,
 524                 (unsigned long long) statfsbuf.f_bavail,
 525                 (unsigned long long) statfsbuf.f_files,
 526                 (unsigned long long) statfsbuf.f_ffree,
 527                 scontext);
 528
 529         if (scontext)
 530                 freecon(scontext);
 531 # endif
 532 #endif  /* FEATURE_STAT_FORMAT */
 533         return 1;
 534 }
 535
 536 /* stat the file and print what we find */
 537 #if !ENABLE_FEATURE_STAT_FORMAT
 538 #define do_stat(filename, format) do_stat(filename)
 539 #endif
 540 static bool do_stat(const char *filename, const char *format)
 541 {
 542         struct stat statbuf;
 543 #if ENABLE_SELINUX
 544         security_context_t scontext = NULL;
 545
 546         if (option_mask32 & OPT_SELINUX) {
 547                 if ((option_mask32 & OPT_DEREFERENCE
 548                      ? lgetfilecon(filename, &scontext)
 549                      : getfilecon(filename, &scontext)
 550                     ) < 0
 551                 ) {
 552                         bb_perror_msg(filename);
 553                         return 0;
 554                 }
 555         }
 556 #endif
 557         if ((option_mask32 & OPT_DEREFERENCE ? stat : lstat) (filename, &statbuf) != 0) {
 558                 bb_perror_msg("can't stat '%s'", filename);
 559                 return 0;
 560         }
 561
 562 #if ENABLE_FEATURE_STAT_FORMAT
 563         if (format == NULL) {
 564 # if !ENABLE_SELINUX
 565                 if (option_mask32 & OPT_TERSE) {
 566                         format = "%n %s %b %f %u %g %D %i %h %t %T %X %Y %Z %o";
 567                 } else {
 568                         if (S_ISBLK(statbuf.st_mode) || S_ISCHR(statbuf.st_mode)) {
 569                                 format =
 570                                         "  File: %N\n"
 571                                         "  Size: %-10s\tBlocks: %-10b IO Block: %-6o %F\n"
 572                                         "Device: %Dh/%dd\tInode: %-10i  Links: %-5h"
 573                                         " Device type: %t,%T\n"
 574                                         "Access: (%04a/%10.10A)  Uid: (%5u/%8U)   Gid: (%5g/%8G)\n"
 575                                         "Access: %x\n" "Modify: %y\n" "Change: %z\n";
 576                         } else {
 577                                 format =
 578                                         "  File: %N\n"
 579                                         "  Size: %-10s\tBlocks: %-10b IO Block: %-6o %F\n"
 580                                         "Device: %Dh/%dd\tInode: %-10i  Links: %h\n"
 581                                         "Access: (%04a/%10.10A)  Uid: (%5u/%8U)   Gid: (%5g/%8G)\n"
 582                                         "Access: %x\n" "Modify: %y\n" "Change: %z\n";
 583                         }
 584                 }
 585 # else
 586                 if (option_mask32 & OPT_TERSE) {
 587                         format = (option_mask32 & OPT_SELINUX ?
 588                                   "%n %s %b %f %u %g %D %i %h %t %T %X %Y %Z %o %C\n":
 589                                   "%n %s %b %f %u %g %D %i %h %t %T %X %Y %Z %o\n");
 590                 } else {
 591                         if (S_ISBLK(statbuf.st_mode) || S_ISCHR(statbuf.st_mode)) {
 592                                 format = (option_mask32 & OPT_SELINUX ?
 593                                           "  File: %N\n"
 594                                           "  Size: %-10s\tBlocks: %-10b IO Block: %-6o %F\n"
 595                                           "Device: %Dh/%dd\tInode: %-10i  Links: %-5h"
 596                                           " Device type: %t,%T\n"
 597                                           "Access: (%04a/%10.10A)  Uid: (%5u/%8U)   Gid: (%5g/%8G)\n"
 598                                           "   S_Context: %C\n"
 599                                           "Access: %x\n" "Modify: %y\n" "Change: %z\n":
 600                                           "  File: %N\n"
 601                                           "  Size: %-10s\tBlocks: %-10b IO Block: %-6o %F\n"
 602                                           "Device: %Dh/%dd\tInode: %-10i  Links: %-5h"
 603                                           " Device type: %t,%T\n"
 604                                           "Access: (%04a/%10.10A)  Uid: (%5u/%8U)   Gid: (%5g/%8G)\n"
 605                                           "Access: %x\n" "Modify: %y\n" "Change: %z\n");
 606                         } else {
 607                                 format = (option_mask32 & OPT_SELINUX ?
 608                                           "  File: %N\n"
 609                                           "  Size: %-10s\tBlocks: %-10b IO Block: %-6o %F\n"
 610                                           "Device: %Dh/%dd\tInode: %-10i  Links: %h\n"
 611                                           "Access: (%04a/%10.10A)  Uid: (%5u/%8U)   Gid: (%5g/%8G)\n"
 612                                           "S_Context: %C\n"
 613                                           "Access: %x\n" "Modify: %y\n" "Change: %z\n":
 614                                           "  File: %N\n"
 615                                           "  Size: %-10s\tBlocks: %-10b IO Block: %-6o %F\n"
 616                                           "Device: %Dh/%dd\tInode: %-10i  Links: %h\n"
 617                                           "Access: (%04a/%10.10A)  Uid: (%5u/%8U)   Gid: (%5g/%8G)\n"
 618                                           "Access: %x\n" "Modify: %y\n" "Change: %z\n");
 619                         }
 620                 }
 621 # endif
 622         }
 623         print_it(format, filename, print_stat, &statbuf IF_SELINUX(, scontext));
 624 #else   /* FEATURE_STAT_FORMAT */
 625         if (option_mask32 & OPT_TERSE) {
 626                 printf("%s %llu %llu %lx %lu %lu %llx %llu %lu %lx %lx %lu %lu %lu %lu"
 627                        IF_NOT_SELINUX("\n"),
 628                        filename,
 629                        (unsigned long long) statbuf.st_size,
 630                        (unsigned long long) statbuf.st_blocks,
 631                        (unsigned long) statbuf.st_mode,
 632                        (unsigned long) statbuf.st_uid,
 633                        (unsigned long) statbuf.st_gid,
 634                        (unsigned long long) statbuf.st_dev,
 635                        (unsigned long long) statbuf.st_ino,
 636                        (unsigned long) statbuf.st_nlink,
 637                        (unsigned long) major(statbuf.st_rdev),
 638                        (unsigned long) minor(statbuf.st_rdev),
 639                        (unsigned long) statbuf.st_atime,
 640                        (unsigned long) statbuf.st_mtime,
 641                        (unsigned long) statbuf.st_ctime,
 642                        (unsigned long) statbuf.st_blksize
 643                 );
 644 # if ENABLE_SELINUX
 645                 if (option_mask32 & OPT_SELINUX)
 646                         printf(" %lc\n", *scontext);
 647                 else
 648                         bb_putchar('\n');
 649 # endif
 650         } else {
 651                 char *linkname = NULL;
 652                 struct passwd *pw_ent;
 653                 struct group *gw_ent;
 654
 655                 gw_ent = getgrgid(statbuf.st_gid);
 656                 pw_ent = getpwuid(statbuf.st_uid);
 657
 658                 if (S_ISLNK(statbuf.st_mode))
 659                         linkname = xmalloc_readlink_or_warn(filename);
 660                 if (linkname) {
 661                         printf("  File: '%s' -> '%s'\n", filename, linkname);
 662                         free(linkname);
 663                 } else {
 664                         printf("  File: '%s'\n", filename);
 665                 }
 666
 667                 printf("  Size: %-10llu\tBlocks: %-10llu IO Block: %-6lu %s\n"
 668                        "Device: %llxh/%llud\tInode: %-10llu  Links: %-5lu",
 669                        (unsigned long long) statbuf.st_size,
 670                        (unsigned long long) statbuf.st_blocks,
 671                        (unsigned long) statbuf.st_blksize,
 672                        file_type(&statbuf),
 673                        (unsigned long long) statbuf.st_dev,
 674                        (unsigned long long) statbuf.st_dev,
 675                        (unsigned long long) statbuf.st_ino,
 676                        (unsigned long) statbuf.st_nlink);
 677                 if (S_ISBLK(statbuf.st_mode) || S_ISCHR(statbuf.st_mode))
 678                         printf(" Device type: %lx,%lx\n",
 679                                (unsigned long) major(statbuf.st_rdev),
 680                                (unsigned long) minor(statbuf.st_rdev));
 681                 else
 682                         bb_putchar('\n');
 683                 printf("Access: (%04lo/%10.10s)  Uid: (%5lu/%8s)   Gid: (%5lu/%8s)\n",
 684                        (unsigned long) (statbuf.st_mode & (S_ISUID|S_ISGID|S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO)),
 685                        bb_mode_string(statbuf.st_mode),
 686                        (unsigned long) statbuf.st_uid,
 687                        (pw_ent != NULL) ? pw_ent->pw_name : "UNKNOWN",
 688                        (unsigned long) statbuf.st_gid,
 689                        (gw_ent != NULL) ? gw_ent->gr_name : "UNKNOWN");
 690 # if ENABLE_SELINUX
 691                 printf("   S_Context: %lc\n", *scontext);
 692 # endif
 693                 printf("Access: %s\n", human_time(statbuf.st_atime));
 694                 printf("Modify: %s\n", human_time(statbuf.st_mtime));
 695                 printf("Change: %s\n", human_time(statbuf.st_ctime));
 696         }
 697 #endif  /* FEATURE_STAT_FORMAT */
 698         return 1;
 699 }
 700
 701 int stat_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 702 int stat_main(int argc UNUSED_PARAM, char **argv)
 703 {
 704         IF_FEATURE_STAT_FORMAT(char *format = NULL;)
 705         int i;
 706         int ok;
 707         unsigned opts;
 708         statfunc_ptr statfunc = do_stat;
 709
 710         opt_complementary = "-1"; /* min one arg */
 711         opts = getopt32(argv, "ftL"
 712                 IF_SELINUX("Z")
 713                 IF_FEATURE_STAT_FORMAT("c:", &format)
 714         );
 715         if (opts & OPT_FILESYS) /* -f */
 716                 statfunc = do_statfs;
 717 #if ENABLE_SELINUX
 718         if (opts & OPT_SELINUX) {
 719                 selinux_or_die();
 720         }
 721 #endif
 722         ok = 1;
 723         argv += optind;
 724         for (i = 0; argv[i]; ++i)
 725                 ok &= statfunc(argv[i] IF_FEATURE_STAT_FORMAT(, format));
 726
 727         return (ok ? EXIT_SUCCESS : EXIT_FAILURE);
 728 }