misc/filefrag.c

   1 /*
   2  * filefrag.c -- report if a particular file is fragmented
   3  *
   4  * Copyright 2003 by Theodore Ts'o.
   5  *
   6  * %Begin-Header%
   7  * This file may be redistributed under the terms of the GNU Public
   8  * License.
   9  * %End-Header%
  10  */
  11
  12 #include "config.h"
  13 #ifndef __linux__
  14 #include <stdio.h>
  15 #include <stdlib.h>
  16 #include <unistd.h>
  17
  18 int main(void) {
  19         fputs("This program is only supported on Linux!\n", stderr);
  20         exit(EXIT_FAILURE);
  21 }
  22 #else
  23 #ifndef _LARGEFILE_SOURCE
  24 #define _LARGEFILE_SOURCE
  25 #endif
  26 #ifndef _LARGEFILE64_SOURCE
  27 #define _LARGEFILE64_SOURCE
  28 #endif
  29
  30
  31 #include <stdio.h>
  32 #include <stdlib.h>
  33 #include <unistd.h>
  34 #include <string.h>
  35 #include <time.h>
  36 #include <fcntl.h>
  37 #include <errno.h>
  38 #ifdef HAVE_GETOPT_H
  39 #include <getopt.h>
  40 #else
  41 extern char *optarg;
  42 extern int optind;
  43 #endif
  44 #include <sys/types.h>
  45 #include <sys/stat.h>
  46 #include <sys/vfs.h>
  47 #include <sys/ioctl.h>
  48 #include <linux/fd.h>
  49 #include <ext2fs/ext2fs.h>
  50 #include <ext2fs/ext2_types.h>
  51 #include <ext2fs/fiemap.h>
  52
  53 int verbose = 0;
  54 int blocksize;          /* Use specified blocksize (default 1kB) */
  55 int sync_file = 0;      /* fsync file before getting the mapping */
  56 int xattr_map = 0;      /* get xattr mapping */
  57 int force_bmap;         /* force use of FIBMAP instead of FIEMAP */
  58 int force_extent;       /* print output in extent format always */
  59 int device_offset;      /* extents report device-relative offsets */
  60 int logical_width = 8;
  61 int physical_width = 10;
  62 const char *ext_fmt = "%4d: %*llu..%*llu: %*llu..%*llu: %6llu: %s\n";
  63 const char *hex_fmt = "%4d: %*llx..%*llx: %*llx..%*llx: %6llx: %s\n";
  64
  65 #define FILEFRAG_FIEMAP_FLAGS_COMPAT (FIEMAP_FLAG_SYNC | FIEMAP_FLAG_XATTR |\
  66                                       FIEMAP_FLAG_DEVICE_ORDER)
  67
  68 #define FIBMAP          _IO(0x00, 1)    /* bmap access */
  69 #define FIGETBSZ        _IO(0x00, 2)    /* get the block size used for bmap */
  70
  71 #define LUSTRE_SUPER_MAGIC 0x0BD00BD0
  72
  73 #define EXT4_EXTENTS_FL                 0x00080000 /* Inode uses extents */
  74 #define EXT3_IOC_GETFLAGS               _IOR('f', 1, long)
  75
  76 static int int_log2(int arg)
  77 {
  78         int     l = 0;
  79
  80         arg >>= 1;
  81         while (arg) {
  82                 l++;
  83                 arg >>= 1;
  84         }
  85         return l;
  86 }
  87
  88 static int int_log10(unsigned long long arg)
  89 {
  90         int     l = 0;
  91
  92         arg = arg / 10;
  93         while (arg) {
  94                 l++;
  95                 arg = arg / 10;
  96         }
  97         return l;
  98 }
  99
 100 static unsigned int div_ceil(unsigned int a, unsigned int b)
 101 {
 102         if (!a)
 103                 return 0;
 104         return ((a - 1) / b) + 1;
 105 }
 106
 107 static int get_bmap(int fd, unsigned long block, unsigned long *phy_blk)
 108 {
 109         int     ret;
 110         unsigned int b;
 111
 112         b = block;
 113         ret = ioctl(fd, FIBMAP, &b); /* FIBMAP takes pointer to integer */
 114         if (ret < 0)
 115                 return -errno;
 116         *phy_blk = b;
 117
 118         return ret;
 119 }
 120
 121 static void print_extent_header(void)
 122 {
 123         printf(" ext: %*s %*s length: %*s flags:\n",
 124                logical_width * 2 + 3,
 125                device_offset ? "device_logical:" : "logical_offset:",
 126                physical_width * 2 + 3, "physical_offset:",
 127                device_offset ? 5 : physical_width + 1,
 128                device_offset ? " dev:" : "expected:");
 129 }
 130
 131 static void print_flag(__u32 *flags, __u32 mask, char *buf, const char *name)
 132 {
 133         if ((*flags & mask) == 0)
 134                 return;
 135
 136         strcat(buf, name);
 137         *flags &= ~mask;
 138 }
 139
 140 static void print_extent_info(struct fiemap_extent *fm_extent, int cur_ex,
 141                               unsigned long long expected, int blk_shift,
 142                               ext2fs_struct_stat *st)
 143 {
 144         unsigned long long physical_blk;
 145         unsigned long long logical_blk;
 146         unsigned long long ext_len;
 147         unsigned long long ext_blks;
 148         __u32 fe_flags, mask;
 149         char flags[256] = "";
 150
 151         /* For inline data all offsets should be in bytes, not blocks */
 152         if (fm_extent->fe_flags & FIEMAP_EXTENT_DATA_INLINE)
 153                 blk_shift = 0;
 154
 155         ext_len = fm_extent->fe_length >> blk_shift;
 156         ext_blks = (fm_extent->fe_length - 1) >> blk_shift;
 157         logical_blk = fm_extent->fe_logical >> blk_shift;
 158         if (fm_extent->fe_flags & FIEMAP_EXTENT_UNKNOWN) {
 159                 physical_blk = 0;
 160         } else {
 161                 physical_blk = fm_extent->fe_physical >> blk_shift;
 162         }
 163
 164         if (device_offset)
 165                 sprintf(flags, "%04x: ", fm_extent->fe_device);
 166         else if (expected)
 167                 sprintf(flags, ext_fmt == hex_fmt ? "%*llx:" : "%*llu: ",
 168                         physical_width, expected >> blk_shift);
 169
 170         fe_flags = fm_extent->fe_flags;
 171         print_flag(&fe_flags, FIEMAP_EXTENT_LAST, flags, "last,");
 172         print_flag(&fe_flags, FIEMAP_EXTENT_UNKNOWN, flags, "unknown_loc,");
 173         print_flag(&fe_flags, FIEMAP_EXTENT_DELALLOC, flags, "delalloc,");
 174         print_flag(&fe_flags, FIEMAP_EXTENT_ENCODED, flags, "encoded,");
 175         print_flag(&fe_flags, FIEMAP_EXTENT_DATA_ENCRYPTED, flags,"encrypted,");
 176         print_flag(&fe_flags, FIEMAP_EXTENT_NOT_ALIGNED, flags, "not_aligned,");
 177         print_flag(&fe_flags, FIEMAP_EXTENT_DATA_INLINE, flags, "inline,");
 178         print_flag(&fe_flags, FIEMAP_EXTENT_DATA_TAIL, flags, "tail_packed,");
 179         print_flag(&fe_flags, FIEMAP_EXTENT_UNWRITTEN, flags, "unwritten,");
 180         print_flag(&fe_flags, FIEMAP_EXTENT_MERGED, flags, "merged,");
 181         print_flag(&fe_flags, FIEMAP_EXTENT_SHARED, flags, "shared,");
 182         print_flag(&fe_flags, FIEMAP_EXTENT_NET, flags, "net,");
 183
 184         /* print any unknown flags as hex values */
 185         for (mask = 1; fe_flags != 0 && mask != 0; mask <<= 1) {
 186                 char hex[sizeof(mask) * 2 + 4]; /* 2 chars/byte + 0x, + NUL */
 187
 188                 if ((fe_flags & mask) == 0)
 189                         continue;
 190                 sprintf(hex, "%#04x,", mask);
 191                 print_flag(&fe_flags, mask, flags, hex);
 192         }
 193
 194         if (fm_extent->fe_logical + fm_extent->fe_length >=
 195             (unsigned long long) st->st_size)
 196                 strcat(flags, "eof,");
 197
 198         /* Remove trailing comma, if any */
 199         if (flags[0] != '\0')
 200                 flags[strnlen(flags, sizeof(flags)) - 1] = '\0';
 201
 202         printf(ext_fmt, cur_ex, logical_width, logical_blk,
 203                logical_width, logical_blk + ext_blks,
 204                physical_width, physical_blk,
 205                physical_width, physical_blk + ext_blks,
 206                ext_len, flags);
 207 }
 208
 209 static int filefrag_fiemap(int fd, int blk_shift, int *num_extents,
 210                            ext2fs_struct_stat *st)
 211 {
 212         __u64 buf[2048];        /* __u64 for proper field alignment */
 213         struct fiemap *fiemap = (struct fiemap *)buf;
 214         struct fiemap_extent *fm_ext = &fiemap->fm_extents[0];
 215         struct fiemap_extent fm_last;
 216         int count = (sizeof(buf) - sizeof(*fiemap)) /
 217                         sizeof(struct fiemap_extent);
 218         unsigned long long expected = 0;
 219         unsigned long long expected_dense = 0;
 220         unsigned long flags = 0;
 221         unsigned int i;
 222         int fiemap_header_printed = 0;
 223         int tot_extents = 0, n = 0;
 224         int previous_device = 0;
 225         int last = 0;
 226         int rc;
 227
 228         memset(fiemap, 0, sizeof(struct fiemap));
 229         memset(&fm_last, 0, sizeof(fm_last));
 230
 231         if (sync_file)
 232                 flags |= FIEMAP_FLAG_SYNC;
 233
 234         if (xattr_map)
 235                 flags |= FIEMAP_FLAG_XATTR;
 236
 237         if (device_offset) {
 238                 flags |= FIEMAP_FLAG_DEVICE_ORDER;
 239                 memset(fm_ext, 0, sizeof(struct fiemap_extent));
 240         }
 241
 242 retry_wo_device_order:
 243         do {
 244                 fiemap->fm_length = ~0ULL;
 245                 fiemap->fm_flags = flags;
 246                 fiemap->fm_extent_count = count;
 247                 rc = ioctl(fd, FS_IOC_FIEMAP, (unsigned long) fiemap);
 248                 if (rc < 0) {
 249                         static int fiemap_incompat_printed;
 250
 251                         rc = -errno;
 252                         if (rc == -EBADR && !fiemap_incompat_printed) {
 253                                 fprintf(stderr, "FIEMAP failed with unknown "
 254                                                 "flags %x\n",
 255                                        fiemap->fm_flags);
 256                                 fiemap_incompat_printed = 1;
 257                         } else if (rc == EBADR && (fiemap->fm_flags &
 258                                                    FIEMAP_FLAG_DEVICE_ORDER)) {
 259                                 flags &= ~FIEMAP_FLAG_DEVICE_ORDER;
 260                                 goto retry_wo_device_order;
 261                         }
 262                         return rc;
 263                 }
 264
 265                 /* If 0 extents are returned, then more ioctls are not needed */
 266                 if (fiemap->fm_mapped_extents == 0)
 267                         break;
 268
 269                 if (verbose && !fiemap_header_printed) {
 270                         print_extent_header();
 271                         fiemap_header_printed = 1;
 272                 }
 273
 274                 for (i = 0; i < fiemap->fm_mapped_extents; i++) {
 275                         if (previous_device != fm_ext[i].fe_device)
 276                                 previous_device = fm_ext[i].fe_device;
 277
 278                         expected_dense = fm_last.fe_physical +
 279                                          fm_last.fe_length;
 280                         expected = fm_last.fe_physical +
 281                                    fm_ext[i].fe_logical - fm_last.fe_logical;
 282                         if (fm_ext[i].fe_logical != 0 &&
 283                             fm_ext[i].fe_physical != expected &&
 284                             fm_ext[i].fe_physical != expected_dense) {
 285                                 tot_extents++;
 286                         } else {
 287                                 expected = 0;
 288                                 if (!tot_extents)
 289                                         tot_extents = 1;
 290                         }
 291                         if (verbose)
 292                                 print_extent_info(&fm_ext[i], n, expected,
 293                                                   blk_shift, st);
 294                         if (fm_ext[i].fe_flags & FIEMAP_EXTENT_LAST)
 295                                 last = 1;
 296                         fm_last = fm_ext[i];
 297                         n++;
 298                 }
 299
 300                 /* For DEVICE_ORDER mappings, if EXTENT_LAST not yet found then
 301                  * fm_start needs to be the same as it was for earlier ioctl.
 302                  * The first extent is used to pass the end offset and device
 303                  * of the last FIEMAP call.  Otherwise, we ask for extents
 304                  * starting from where the last mapping ended. */
 305                 if (flags & FIEMAP_FLAG_DEVICE_ORDER) {
 306                         fm_ext[0].fe_logical =  fm_ext[i - 1].fe_logical +
 307                                                 fm_ext[i - 1].fe_length;
 308                         fm_ext[0].fe_device =   fm_ext[i - 1].fe_device;
 309                         fiemap->fm_start =      0;
 310                 } else {
 311                         fiemap->fm_start =      fm_ext[i - 1].fe_logical +
 312                                                 fm_ext[i - 1].fe_length;
 313                 }
 314         } while (last == 0);
 315
 316         *num_extents = tot_extents;
 317
 318         return 0;
 319 }
 320
 321 #define EXT2_DIRECT     12
 322
 323 static int filefrag_fibmap(int fd, int blk_shift, int *num_extents,
 324                            ext2fs_struct_stat *st,
 325                            unsigned long numblocks, int is_ext2)
 326 {
 327         struct fiemap_extent    fm_ext, fm_last;
 328         unsigned long           i, last_block;
 329         unsigned long long      logical, expected = 0;
 330                                 /* Blocks per indirect block */
 331         const long              bpib = st->st_blksize / 4;
 332         int                     count;
 333
 334         memset(&fm_ext, 0, sizeof(fm_ext));
 335         memset(&fm_last, 0, sizeof(fm_last));
 336         if (force_extent) {
 337                 fm_ext.fe_device = st->st_dev;
 338                 fm_ext.fe_flags = FIEMAP_EXTENT_MERGED;
 339         }
 340
 341         if (sync_file && fsync(fd) != 0)
 342                 return -errno;
 343
 344         for (i = 0, logical = 0, *num_extents = 0, count = last_block = 0;
 345              i < numblocks;
 346              i++, logical += st->st_blksize) {
 347                 unsigned long block = 0;
 348                 int rc;
 349
 350                 if (is_ext2 && last_block) {
 351                         if (((i - EXT2_DIRECT) % bpib) == 0)
 352                                 last_block++;
 353                         if (((i - EXT2_DIRECT - bpib) % (bpib * bpib)) == 0)
 354                                 last_block++;
 355                         if (((i - EXT2_DIRECT - bpib - bpib * bpib) %
 356                              (((unsigned long long)bpib) * bpib * bpib)) == 0)
 357                                 last_block++;
 358                 }
 359                 rc = get_bmap(fd, i, &block);
 360                 if (rc < 0)
 361                         return rc;
 362                 if (block == 0)
 363                         continue;
 364
 365                 if (*num_extents == 0 || block != last_block + 1 ||
 366                     fm_ext.fe_logical + fm_ext.fe_length != logical) {
 367                         /*
 368                          * This is the start of a new extent; figure out where
 369                          * we expected it to be and report the extent.
 370                          */
 371                         if (*num_extents != 0 && fm_last.fe_length) {
 372                                 expected = fm_last.fe_physical +
 373                                         (fm_ext.fe_logical - fm_last.fe_logical);
 374                                 if (expected == fm_ext.fe_physical)
 375                                         expected = 0;
 376                         }
 377                         if (force_extent && *num_extents == 0)
 378                                 print_extent_header();
 379                         if (force_extent && *num_extents != 0) {
 380                                 print_extent_info(&fm_ext, *num_extents - 1,
 381                                                   expected, blk_shift, st);
 382                         }
 383                         if (verbose && expected != 0) {
 384                                 printf("Discontinuity: Block %llu is at %llu "
 385                                        "(was %llu)\n",
 386                                         fm_ext.fe_logical / st->st_blksize,
 387                                         fm_ext.fe_physical / st->st_blksize,
 388                                         expected / st->st_blksize);
 389                         }
 390                         /* create the new extent */
 391                         fm_last = fm_ext;
 392                         (*num_extents)++;
 393                         fm_ext.fe_physical = block * st->st_blksize;
 394                         fm_ext.fe_logical = logical;
 395                         fm_ext.fe_length = 0;
 396                 }
 397                 fm_ext.fe_length += st->st_blksize;
 398                 last_block = block;
 399         }
 400         if (force_extent && *num_extents != 0) {
 401                 if (fm_last.fe_length) {
 402                         expected = fm_last.fe_physical +
 403                                    (fm_ext.fe_logical - fm_last.fe_logical);
 404                         if (expected == fm_ext.fe_physical)
 405                                 expected = 0;
 406                 }
 407                 print_extent_info(&fm_ext, *num_extents - 1, expected,
 408                                   blk_shift, st);
 409         }
 410
 411         return count;
 412 }
 413
 414 static int frag_report(const char *filename)
 415 {
 416         static struct statfs fsinfo;
 417         static unsigned int blksize;
 418         ext2fs_struct_stat st;
 419         int             blk_shift;
 420         long            fd;
 421         unsigned long long      numblocks;
 422         int             data_blocks_per_cyl = 1;
 423         int             num_extents = 1, expected = ~0;
 424         int             is_ext2 = 0;
 425         static dev_t    last_device;
 426         int             width;
 427         int             rc = 0;
 428
 429 #if defined(HAVE_OPEN64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
 430         fd = open64(filename, O_RDONLY);
 431 #else
 432         fd = open(filename, O_RDONLY);
 433 #endif
 434         if (fd < 0) {
 435                 rc = -errno;
 436                 perror("open");
 437                 return rc;
 438         }
 439
 440 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
 441         if (fstat64(fd, &st) < 0) {
 442 #else
 443         if (fstat(fd, &st) < 0) {
 444 #endif
 445                 rc = -errno;
 446                 perror("stat");
 447                 goto out_close;
 448         }
 449
 450         if (last_device != st.st_dev) {
 451                 if (fstatfs(fd, &fsinfo) < 0) {
 452                         rc = -errno;
 453                         perror("fstatfs");
 454                         goto out_close;
 455                 }
 456                 if (ioctl(fd, FIGETBSZ, &blksize) < 0)
 457                         blksize = fsinfo.f_bsize;
 458                 if (verbose)
 459                         printf("Filesystem type is: %lx\n",
 460                                (unsigned long)fsinfo.f_type);
 461         }
 462         st.st_blksize = blksize;
 463         if (fsinfo.f_type == 0xef51 || fsinfo.f_type == 0xef52 ||
 464             fsinfo.f_type == 0xef53) {
 465                 unsigned int    flags;
 466
 467                 if (ioctl(fd, EXT3_IOC_GETFLAGS, &flags) == 0 &&
 468                     !(flags & EXT4_EXTENTS_FL))
 469                         is_ext2 = 1;
 470         }
 471
 472         /* Check if filesystem is Lustre.  Always print in extent format
 473          * with 1kB blocks, using the device-relative logical offsets. */
 474         if (fsinfo.f_type == LUSTRE_SUPER_MAGIC) {
 475                 device_offset = 1;
 476                 blocksize = blocksize ?: 1024;
 477         }
 478
 479         if (is_ext2) {
 480                 long cylgroups = div_ceil(fsinfo.f_blocks, blksize * 8);
 481
 482                 if (verbose && last_device != st.st_dev)
 483                         printf("Filesystem cylinder groups approximately %ld\n",
 484                                cylgroups);
 485
 486                 data_blocks_per_cyl = blksize * 8 -
 487                                         (fsinfo.f_files / 8 / cylgroups) - 3;
 488         }
 489         last_device = st.st_dev;
 490
 491         width = int_log10(fsinfo.f_blocks);
 492         if (width > physical_width)
 493                 physical_width = width;
 494
 495         numblocks = (st.st_size + blksize - 1) / blksize;
 496         if (blocksize != 0)
 497                 blk_shift = int_log2(blocksize);
 498         else
 499                 blk_shift = int_log2(blksize);
 500
 501         width = int_log10(numblocks);
 502         if (width > logical_width)
 503                 logical_width = width;
 504         if (verbose)
 505                 printf("File size of %s is %llu (%llu block%s of %d bytes)\n",
 506                        filename, (unsigned long long)st.st_size,
 507                        numblocks * blksize >> blk_shift,
 508                        numblocks == 1 ? "" : "s", 1 << blk_shift);
 509
 510         if (!force_bmap) {
 511                 rc = filefrag_fiemap(fd, blk_shift, &num_extents, &st);
 512                 expected = 0;
 513         }
 514
 515         if (force_bmap || rc < 0) { /* FIEMAP failed, try FIBMAP instead */
 516                 expected = filefrag_fibmap(fd, blk_shift, &num_extents,
 517                                            &st, numblocks, is_ext2);
 518                 if (expected < 0) {
 519                         if (expected == -EINVAL || expected == -ENOTTY) {
 520                                 fprintf(stderr, "%s: FIBMAP unsupported\n",
 521                                         filename);
 522                         } else if (expected == -EPERM) {
 523                                 fprintf(stderr,
 524                                         "%s: FIBMAP requires root privileges\n",
 525                                         filename);
 526                         } else {
 527                                 fprintf(stderr, "%s: FIBMAP error: %s",
 528                                         filename, strerror(expected));
 529                         }
 530                         rc = expected;
 531                         goto out_close;
 532                 } else {
 533                         rc = 0;
 534                 }
 535                 expected = expected / data_blocks_per_cyl + 1;
 536         }
 537
 538         if (num_extents == 1)
 539                 printf("%s: 1 extent found", filename);
 540         else
 541                 printf("%s: %d extents found", filename, num_extents);
 542         /* count, and thus expected, only set for indirect FIBMAP'd files */
 543         if (is_ext2 && expected && expected < num_extents)
 544                 printf(", perfection would be %d extent%s\n", expected,
 545                         (expected > 1) ? "s" : "");
 546         else
 547                 fputc('\n', stdout);
 548 out_close:
 549         close(fd);
 550
 551         return rc;
 552 }
 553
 554 static void usage(const char *progname)
 555 {
 556         fprintf(stderr, "Usage: %s [-b{blocksize}] [-BeksvxX] file ...\n",
 557                 progname);
 558         exit(1);
 559 }
 560
 561 int main(int argc, char**argv)
 562 {
 563         char **cpp;
 564         int rc = 0, c;
 565
 566         while ((c = getopt(argc, argv, "Bb::eklsvxX")) != EOF) {
 567                 switch (c) {
 568                 case 'B':
 569                         force_bmap++;
 570                         force_extent = 0;
 571                         break;
 572                 case 'b':
 573                         if (optarg) {
 574                                 char *end;
 575                                 blocksize = strtoul(optarg, &end, 0);
 576                                 if (end) {
 577 #pragma GCC diagnostic push
 578 #pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
 579                                         switch (end[0]) {
 580                                         case 'g':
 581                                         case 'G':
 582                                                 blocksize *= 1024;
 583                                                 /* fall through */
 584                                         case 'm':
 585                                         case 'M':
 586                                                 blocksize *= 1024;
 587                                                 /* fall through */
 588                                         case 'k':
 589                                         case 'K':
 590                                                 blocksize *= 1024;
 591                                                 break;
 592                                         default:
 593                                                 break;
 594                                         }
 595 #pragma GCC diagnostic pop
 596                                 }
 597                         } else { /* Allow -b without argument for compat. Remove
 598                                   * this eventually so "-b {blocksize}" works */
 599                                 fprintf(stderr, "%s: -b needs a blocksize "
 600                                         "option, assuming 1024-byte blocks.\n",
 601                                         argv[0]);
 602                                 blocksize = 1024;
 603                         }
 604                         break;
 605                 case 'e':
 606                         force_extent++;
 607                         if (!verbose)
 608                                 verbose++;
 609                         break;
 610                 case 'k':
 611                         blocksize = 1024;
 612                         break;
 613                 case 'l':
 614                         device_offset++;
 615                         break;
 616                 case 's':
 617                         sync_file++;
 618                         break;
 619                 case 'v':
 620                         verbose++;
 621                         break;
 622                 case 'x':
 623                         xattr_map++;
 624                         break;
 625                 case 'X':
 626                         ext_fmt = hex_fmt;
 627                         break;
 628                 default:
 629                         usage(argv[0]);
 630                         break;
 631                 }
 632         }
 633
 634         if (optind == argc)
 635                 usage(argv[0]);
 636
 637         for (cpp = argv + optind; *cpp != NULL; cpp++) {
 638                 int rc2 = frag_report(*cpp);
 639
 640                 if (rc2 < 0 && rc == 0)
 641                         rc = rc2;
 642         }
 643
 644         return -rc;
 645 }
 646 #endif