1 /* $NetBSD: ffs.c,v 1.45 2011/10/09 22:49:26 christos Exp $ */ 2 3 /* 4 * Copyright (c) 2001 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Luke Mewburn for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 /* 38 * Copyright (c) 1982, 1986, 1989, 1993 39 * The Regents of the University of California. All rights reserved. 40 * 41 * Redistribution and use in source and binary forms, with or without 42 * modification, are permitted provided that the following conditions 43 * are met: 44 * 1. Redistributions of source code must retain the above copyright 45 * notice, this list of conditions and the following disclaimer. 46 * 2. Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in the 48 * documentation and/or other materials provided with the distribution. 49 * 3. Neither the name of the University nor the names of its contributors 50 * may be used to endorse or promote products derived from this software 51 * without specific prior written permission. 52 * 53 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 63 * SUCH DAMAGE. 64 * 65 * @(#)ffs_alloc.c 8.19 (Berkeley) 7/13/95 66 */ 67 68 #include <sys/cdefs.h> 69 __FBSDID("$FreeBSD$"); 70 71 #include <sys/param.h> 72 73 #include <sys/mount.h> 74 75 #include <assert.h> 76 #include <errno.h> 77 #include <fcntl.h> 78 #include <stdarg.h> 79 #include <stdint.h> 80 #include <stdio.h> 81 #include <stdlib.h> 82 #include <string.h> 83 #include <time.h> 84 #include <unistd.h> 85 #include <util.h> 86 87 #include "makefs.h" 88 #include "ffs.h" 89 90 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS 91 #include <sys/statvfs.h> 92 #endif 93 94 #include <ufs/ufs/dinode.h> 95 #include <ufs/ufs/dir.h> 96 #include <ufs/ffs/fs.h> 97 98 99 #include "ffs/ufs_bswap.h" 100 #include "ffs/ufs_inode.h" 101 #include "ffs/newfs_extern.h" 102 #include "ffs/ffs_extern.h" 103 104 #undef DIP 105 #define DIP(dp, field) \ 106 ((ffs_opts->version == 1) ? \ 107 (dp)->ffs1_din.di_##field : (dp)->ffs2_din.di_##field) 108 109 /* 110 * Various file system defaults (cribbed from newfs(8)). 111 */ 112 #define DFL_FRAGSIZE 1024 /* fragment size */ 113 #define DFL_BLKSIZE 8192 /* block size */ 114 #define DFL_SECSIZE 512 /* sector size */ 115 #define DFL_CYLSPERGROUP 65536 /* cylinders per group */ 116 #define DFL_FRAGSPERINODE 4 /* fragments per inode */ 117 #define DFL_ROTDELAY 0 /* rotational delay */ 118 #define DFL_NRPOS 1 /* rotational positions */ 119 #define DFL_RPM 3600 /* rpm of disk */ 120 #define DFL_NSECTORS 64 /* # of sectors */ 121 #define DFL_NTRACKS 16 /* # of tracks */ 122 123 124 typedef struct { 125 u_char *buf; /* buf for directory */ 126 doff_t size; /* full size of buf */ 127 doff_t cur; /* offset of current entry */ 128 } dirbuf_t; 129 130 131 static int ffs_create_image(const char *, fsinfo_t *); 132 static void ffs_dump_fsinfo(fsinfo_t *); 133 static void ffs_dump_dirbuf(dirbuf_t *, const char *, int); 134 static void ffs_make_dirbuf(dirbuf_t *, const char *, fsnode *, int); 135 static int ffs_populate_dir(const char *, fsnode *, fsinfo_t *); 136 static void ffs_size_dir(fsnode *, fsinfo_t *); 137 static void ffs_validate(const char *, fsnode *, fsinfo_t *); 138 static void ffs_write_file(union dinode *, uint32_t, void *, fsinfo_t *); 139 static void ffs_write_inode(union dinode *, uint32_t, const fsinfo_t *); 140 static void *ffs_build_dinode1(struct ufs1_dinode *, dirbuf_t *, fsnode *, 141 fsnode *, fsinfo_t *); 142 static void *ffs_build_dinode2(struct ufs2_dinode *, dirbuf_t *, fsnode *, 143 fsnode *, fsinfo_t *); 144 145 146 147 int sectorsize; /* XXX: for buf.c::getblk() */ 148 /* publicly visible functions */ 149 150 void 151 ffs_prep_opts(fsinfo_t *fsopts) 152 { 153 ffs_opt_t *ffs_opts = ecalloc(1, sizeof(*ffs_opts)); 154 155 const option_t ffs_options[] = { 156 { 'b', "bsize", &ffs_opts->bsize, OPT_INT32, 157 1, INT_MAX, "block size" }, 158 { 'f', "fsize", &ffs_opts->fsize, OPT_INT32, 159 1, INT_MAX, "fragment size" }, 160 { 'd', "density", &ffs_opts->density, OPT_INT32, 161 1, INT_MAX, "bytes per inode" }, 162 { 'm', "minfree", &ffs_opts->minfree, OPT_INT32, 163 0, 99, "minfree" }, 164 { 'M', "maxbpg", &ffs_opts->maxbpg, OPT_INT32, 165 1, INT_MAX, "max blocks per file in a cg" }, 166 { 'a', "avgfilesize", &ffs_opts->avgfilesize, OPT_INT32, 167 1, INT_MAX, "expected average file size" }, 168 { 'n', "avgfpdir", &ffs_opts->avgfpdir, OPT_INT32, 169 1, INT_MAX, "expected # of files per directory" }, 170 { 'x', "extent", &ffs_opts->maxbsize, OPT_INT32, 171 1, INT_MAX, "maximum # extent size" }, 172 { 'g', "maxbpcg", &ffs_opts->maxblkspercg, OPT_INT32, 173 1, INT_MAX, "max # of blocks per group" }, 174 { 'v', "version", &ffs_opts->version, OPT_INT32, 175 1, 2, "UFS version" }, 176 { 'o', "optimization", NULL, OPT_STRBUF, 177 0, 0, "Optimization (time|space)" }, 178 { 'l', "label", ffs_opts->label, OPT_STRARRAY, 179 1, sizeof(ffs_opts->label), "UFS label" }, 180 { .name = NULL } 181 }; 182 183 ffs_opts->bsize= -1; 184 ffs_opts->fsize= -1; 185 ffs_opts->cpg= -1; 186 ffs_opts->density= -1; 187 ffs_opts->minfree= -1; 188 ffs_opts->optimization= -1; 189 ffs_opts->maxcontig= -1; 190 ffs_opts->maxbpg= -1; 191 ffs_opts->avgfilesize= -1; 192 ffs_opts->avgfpdir= -1; 193 ffs_opts->version = 1; 194 195 fsopts->fs_specific = ffs_opts; 196 fsopts->fs_options = copy_opts(ffs_options); 197 } 198 199 void 200 ffs_cleanup_opts(fsinfo_t *fsopts) 201 { 202 free(fsopts->fs_specific); 203 free(fsopts->fs_options); 204 } 205 206 int 207 ffs_parse_opts(const char *option, fsinfo_t *fsopts) 208 { 209 ffs_opt_t *ffs_opts = fsopts->fs_specific; 210 option_t *ffs_options = fsopts->fs_options; 211 char buf[1024]; 212 213 int rv; 214 215 assert(option != NULL); 216 assert(fsopts != NULL); 217 assert(ffs_opts != NULL); 218 219 if (debug & DEBUG_FS_PARSE_OPTS) 220 printf("ffs_parse_opts: got `%s'\n", option); 221 222 rv = set_option(ffs_options, option, buf, sizeof(buf)); 223 if (rv == -1) 224 return 0; 225 226 if (ffs_options[rv].name == NULL) 227 abort(); 228 229 switch (ffs_options[rv].letter) { 230 case 'o': 231 if (strcmp(buf, "time") == 0) { 232 ffs_opts->optimization = FS_OPTTIME; 233 } else if (strcmp(buf, "space") == 0) { 234 ffs_opts->optimization = FS_OPTSPACE; 235 } else { 236 warnx("Invalid optimization `%s'", buf); 237 return 0; 238 } 239 break; 240 default: 241 break; 242 } 243 return 1; 244 } 245 246 247 void 248 ffs_makefs(const char *image, const char *dir, fsnode *root, fsinfo_t *fsopts) 249 { 250 struct fs *superblock; 251 struct timeval start; 252 253 assert(image != NULL); 254 assert(dir != NULL); 255 assert(root != NULL); 256 assert(fsopts != NULL); 257 258 if (debug & DEBUG_FS_MAKEFS) 259 printf("ffs_makefs: image %s directory %s root %p\n", 260 image, dir, root); 261 262 /* validate tree and options */ 263 TIMER_START(start); 264 ffs_validate(dir, root, fsopts); 265 TIMER_RESULTS(start, "ffs_validate"); 266 267 printf("Calculated size of `%s': %lld bytes, %lld inodes\n", 268 image, (long long)fsopts->size, (long long)fsopts->inodes); 269 270 /* create image */ 271 TIMER_START(start); 272 if (ffs_create_image(image, fsopts) == -1) 273 errx(1, "Image file `%s' not created.", image); 274 TIMER_RESULTS(start, "ffs_create_image"); 275 276 fsopts->curinode = UFS_ROOTINO; 277 278 if (debug & DEBUG_FS_MAKEFS) 279 putchar('\n'); 280 281 /* populate image */ 282 printf("Populating `%s'\n", image); 283 TIMER_START(start); 284 if (! ffs_populate_dir(dir, root, fsopts)) 285 errx(1, "Image file `%s' not populated.", image); 286 TIMER_RESULTS(start, "ffs_populate_dir"); 287 288 /* ensure no outstanding buffers remain */ 289 if (debug & DEBUG_FS_MAKEFS) 290 bcleanup(); 291 292 /* update various superblock parameters */ 293 superblock = fsopts->superblock; 294 superblock->fs_fmod = 0; 295 superblock->fs_old_cstotal.cs_ndir = superblock->fs_cstotal.cs_ndir; 296 superblock->fs_old_cstotal.cs_nbfree = superblock->fs_cstotal.cs_nbfree; 297 superblock->fs_old_cstotal.cs_nifree = superblock->fs_cstotal.cs_nifree; 298 superblock->fs_old_cstotal.cs_nffree = superblock->fs_cstotal.cs_nffree; 299 300 /* write out superblock; image is now complete */ 301 ffs_write_superblock(fsopts->superblock, fsopts); 302 if (close(fsopts->fd) == -1) 303 err(1, "Closing `%s'", image); 304 fsopts->fd = -1; 305 printf("Image `%s' complete\n", image); 306 } 307 308 /* end of public functions */ 309 310 311 static void 312 ffs_validate(const char *dir, fsnode *root, fsinfo_t *fsopts) 313 { 314 int32_t ncg = 1; 315 #if notyet 316 int32_t spc, nspf, ncyl, fssize; 317 #endif 318 ffs_opt_t *ffs_opts = fsopts->fs_specific; 319 320 assert(dir != NULL); 321 assert(root != NULL); 322 assert(fsopts != NULL); 323 assert(ffs_opts != NULL); 324 325 if (debug & DEBUG_FS_VALIDATE) { 326 printf("ffs_validate: before defaults set:\n"); 327 ffs_dump_fsinfo(fsopts); 328 } 329 330 /* set FFS defaults */ 331 if (fsopts->sectorsize == -1) 332 fsopts->sectorsize = DFL_SECSIZE; 333 if (ffs_opts->fsize == -1) 334 ffs_opts->fsize = MAX(DFL_FRAGSIZE, fsopts->sectorsize); 335 if (ffs_opts->bsize == -1) 336 ffs_opts->bsize = MIN(DFL_BLKSIZE, 8 * ffs_opts->fsize); 337 if (ffs_opts->cpg == -1) 338 ffs_opts->cpg = DFL_CYLSPERGROUP; 339 else 340 ffs_opts->cpgflg = 1; 341 /* fsopts->density is set below */ 342 if (ffs_opts->nsectors == -1) 343 ffs_opts->nsectors = DFL_NSECTORS; 344 if (ffs_opts->minfree == -1) 345 ffs_opts->minfree = MINFREE; 346 if (ffs_opts->optimization == -1) 347 ffs_opts->optimization = DEFAULTOPT; 348 if (ffs_opts->maxcontig == -1) 349 ffs_opts->maxcontig = 350 MAX(1, MIN(MAXPHYS, FFS_MAXBSIZE) / ffs_opts->bsize); 351 /* XXX ondisk32 */ 352 if (ffs_opts->maxbpg == -1) 353 ffs_opts->maxbpg = ffs_opts->bsize / sizeof(int32_t); 354 if (ffs_opts->avgfilesize == -1) 355 ffs_opts->avgfilesize = AVFILESIZ; 356 if (ffs_opts->avgfpdir == -1) 357 ffs_opts->avgfpdir = AFPDIR; 358 359 if (fsopts->maxsize > 0 && 360 roundup(fsopts->minsize, ffs_opts->bsize) > fsopts->maxsize) 361 errx(1, "`%s' minsize of %lld rounded up to ffs bsize of %d " 362 "exceeds maxsize %lld. Lower bsize, or round the minimum " 363 "and maximum sizes to bsize.", dir, 364 (long long)fsopts->minsize, ffs_opts->bsize, 365 (long long)fsopts->maxsize); 366 367 /* calculate size of tree */ 368 ffs_size_dir(root, fsopts); 369 fsopts->inodes += UFS_ROOTINO; /* include first two inodes */ 370 371 if (debug & DEBUG_FS_VALIDATE) 372 printf("ffs_validate: size of tree: %lld bytes, %lld inodes\n", 373 (long long)fsopts->size, (long long)fsopts->inodes); 374 375 /* add requested slop */ 376 fsopts->size += fsopts->freeblocks; 377 fsopts->inodes += fsopts->freefiles; 378 if (fsopts->freefilepc > 0) 379 fsopts->inodes = 380 fsopts->inodes * (100 + fsopts->freefilepc) / 100; 381 if (fsopts->freeblockpc > 0) 382 fsopts->size = 383 fsopts->size * (100 + fsopts->freeblockpc) / 100; 384 385 /* add space needed for superblocks */ 386 /* 387 * The old SBOFF (SBLOCK_UFS1) is used here because makefs is 388 * typically used for small filesystems where space matters. 389 * XXX make this an option. 390 */ 391 fsopts->size += (SBLOCK_UFS1 + SBLOCKSIZE) * ncg; 392 /* add space needed to store inodes, x3 for blockmaps, etc */ 393 if (ffs_opts->version == 1) 394 fsopts->size += ncg * DINODE1_SIZE * 395 roundup(fsopts->inodes / ncg, 396 ffs_opts->bsize / DINODE1_SIZE); 397 else 398 fsopts->size += ncg * DINODE2_SIZE * 399 roundup(fsopts->inodes / ncg, 400 ffs_opts->bsize / DINODE2_SIZE); 401 402 /* add minfree */ 403 if (ffs_opts->minfree > 0) 404 fsopts->size = 405 fsopts->size * (100 + ffs_opts->minfree) / 100; 406 /* 407 * XXX any other fs slop to add, such as csum's, bitmaps, etc ?? 408 */ 409 410 if (fsopts->size < fsopts->minsize) /* ensure meets minimum size */ 411 fsopts->size = fsopts->minsize; 412 413 /* round up to the next block */ 414 fsopts->size = roundup(fsopts->size, ffs_opts->bsize); 415 416 /* round up to requested block size, if any */ 417 if (fsopts->roundup > 0) 418 fsopts->size = roundup(fsopts->size, fsopts->roundup); 419 420 /* calculate density if necessary */ 421 if (ffs_opts->density == -1) 422 ffs_opts->density = fsopts->size / fsopts->inodes + 1; 423 424 if (debug & DEBUG_FS_VALIDATE) { 425 printf("ffs_validate: after defaults set:\n"); 426 ffs_dump_fsinfo(fsopts); 427 printf("ffs_validate: dir %s; %lld bytes, %lld inodes\n", 428 dir, (long long)fsopts->size, (long long)fsopts->inodes); 429 } 430 sectorsize = fsopts->sectorsize; /* XXX - see earlier */ 431 432 /* now check calculated sizes vs requested sizes */ 433 if (fsopts->maxsize > 0 && fsopts->size > fsopts->maxsize) { 434 errx(1, "`%s' size of %lld is larger than the maxsize of %lld.", 435 dir, (long long)fsopts->size, (long long)fsopts->maxsize); 436 } 437 } 438 439 440 static void 441 ffs_dump_fsinfo(fsinfo_t *f) 442 { 443 444 ffs_opt_t *fs = f->fs_specific; 445 446 printf("fsopts at %p\n", f); 447 448 printf("\tsize %lld, inodes %lld, curinode %u\n", 449 (long long)f->size, (long long)f->inodes, f->curinode); 450 451 printf("\tminsize %lld, maxsize %lld\n", 452 (long long)f->minsize, (long long)f->maxsize); 453 printf("\tfree files %lld, freefile %% %d\n", 454 (long long)f->freefiles, f->freefilepc); 455 printf("\tfree blocks %lld, freeblock %% %d\n", 456 (long long)f->freeblocks, f->freeblockpc); 457 printf("\tneedswap %d, sectorsize %d\n", f->needswap, f->sectorsize); 458 459 printf("\tbsize %d, fsize %d, cpg %d, density %d\n", 460 fs->bsize, fs->fsize, fs->cpg, fs->density); 461 printf("\tnsectors %d, rpm %d, minfree %d\n", 462 fs->nsectors, fs->rpm, fs->minfree); 463 printf("\tmaxcontig %d, maxbpg %d\n", 464 fs->maxcontig, fs->maxbpg); 465 printf("\toptimization %s\n", 466 fs->optimization == FS_OPTSPACE ? "space" : "time"); 467 } 468 469 470 static int 471 ffs_create_image(const char *image, fsinfo_t *fsopts) 472 { 473 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS 474 struct statvfs sfs; 475 #endif 476 struct fs *fs; 477 char *buf; 478 int i, bufsize; 479 off_t bufrem; 480 time_t tstamp; 481 482 assert (image != NULL); 483 assert (fsopts != NULL); 484 485 /* create image */ 486 if ((fsopts->fd = open(image, O_RDWR | O_CREAT | O_TRUNC, 0666)) 487 == -1) { 488 warn("Can't open `%s' for writing", image); 489 return (-1); 490 } 491 492 /* zero image */ 493 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS 494 if (fstatvfs(fsopts->fd, &sfs) == -1) { 495 #endif 496 bufsize = 8192; 497 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS 498 warn("can't fstatvfs `%s', using default %d byte chunk", 499 image, bufsize); 500 } else 501 bufsize = sfs.f_iosize; 502 #endif 503 bufrem = fsopts->size; 504 if (fsopts->sparse) { 505 if (ftruncate(fsopts->fd, bufrem) == -1) { 506 warn("sparse option disabled."); 507 fsopts->sparse = 0; 508 } 509 } 510 if (fsopts->sparse) { 511 /* File truncated at bufrem. Remaining is 0 */ 512 bufrem = 0; 513 buf = NULL; 514 } else { 515 if (debug & DEBUG_FS_CREATE_IMAGE) 516 printf("zero-ing image `%s', %lld sectors, " 517 "using %d byte chunks\n", image, (long long)bufrem, 518 bufsize); 519 buf = ecalloc(1, bufsize); 520 } 521 while (bufrem > 0) { 522 i = write(fsopts->fd, buf, MIN(bufsize, bufrem)); 523 if (i == -1) { 524 warn("zeroing image, %lld bytes to go", 525 (long long)bufrem); 526 free(buf); 527 return (-1); 528 } 529 bufrem -= i; 530 } 531 if (buf) 532 free(buf); 533 534 /* make the file system */ 535 if (debug & DEBUG_FS_CREATE_IMAGE) 536 printf("calling mkfs(\"%s\", ...)\n", image); 537 538 if (stampst.st_ino != 0) 539 tstamp = stampst.st_ctime; 540 else 541 tstamp = start_time.tv_sec; 542 543 srandom(tstamp); 544 545 fs = ffs_mkfs(image, fsopts, tstamp); 546 fsopts->superblock = (void *)fs; 547 if (debug & DEBUG_FS_CREATE_IMAGE) { 548 time_t t; 549 550 t = (time_t)((struct fs *)fsopts->superblock)->fs_time; 551 printf("mkfs returned %p; fs_time %s", 552 fsopts->superblock, ctime(&t)); 553 printf("fs totals: nbfree %lld, nffree %lld, nifree %lld, ndir %lld\n", 554 (long long)fs->fs_cstotal.cs_nbfree, 555 (long long)fs->fs_cstotal.cs_nffree, 556 (long long)fs->fs_cstotal.cs_nifree, 557 (long long)fs->fs_cstotal.cs_ndir); 558 } 559 560 if (fs->fs_cstotal.cs_nifree + UFS_ROOTINO < fsopts->inodes) { 561 warnx( 562 "Image file `%s' has %lld free inodes; %lld are required.", 563 image, 564 (long long)(fs->fs_cstotal.cs_nifree + UFS_ROOTINO), 565 (long long)fsopts->inodes); 566 return (-1); 567 } 568 return (fsopts->fd); 569 } 570 571 572 static void 573 ffs_size_dir(fsnode *root, fsinfo_t *fsopts) 574 { 575 struct direct tmpdir; 576 fsnode * node; 577 int curdirsize, this; 578 ffs_opt_t *ffs_opts = fsopts->fs_specific; 579 580 /* node may be NULL (empty directory) */ 581 assert(fsopts != NULL); 582 assert(ffs_opts != NULL); 583 584 if (debug & DEBUG_FS_SIZE_DIR) 585 printf("ffs_size_dir: entry: bytes %lld inodes %lld\n", 586 (long long)fsopts->size, (long long)fsopts->inodes); 587 588 #define ADDDIRENT(e) do { \ 589 tmpdir.d_namlen = strlen((e)); \ 590 this = DIRSIZ_SWAP(0, &tmpdir, 0); \ 591 if (debug & DEBUG_FS_SIZE_DIR_ADD_DIRENT) \ 592 printf("ADDDIRENT: was: %s (%d) this %d cur %d\n", \ 593 e, tmpdir.d_namlen, this, curdirsize); \ 594 if (this + curdirsize > roundup(curdirsize, DIRBLKSIZ)) \ 595 curdirsize = roundup(curdirsize, DIRBLKSIZ); \ 596 curdirsize += this; \ 597 if (debug & DEBUG_FS_SIZE_DIR_ADD_DIRENT) \ 598 printf("ADDDIRENT: now: %s (%d) this %d cur %d\n", \ 599 e, tmpdir.d_namlen, this, curdirsize); \ 600 } while (0); 601 602 /* 603 * XXX this needs to take into account extra space consumed 604 * by indirect blocks, etc. 605 */ 606 #define ADDSIZE(x) do { \ 607 fsopts->size += roundup((x), ffs_opts->fsize); \ 608 } while (0); 609 610 curdirsize = 0; 611 for (node = root; node != NULL; node = node->next) { 612 ADDDIRENT(node->name); 613 if (node == root) { /* we're at "." */ 614 assert(strcmp(node->name, ".") == 0); 615 ADDDIRENT(".."); 616 } else if ((node->inode->flags & FI_SIZED) == 0) { 617 /* don't count duplicate names */ 618 node->inode->flags |= FI_SIZED; 619 if (debug & DEBUG_FS_SIZE_DIR_NODE) 620 printf("ffs_size_dir: `%s' size %lld\n", 621 node->name, 622 (long long)node->inode->st.st_size); 623 fsopts->inodes++; 624 if (node->type == S_IFREG) 625 ADDSIZE(node->inode->st.st_size); 626 if (node->type == S_IFLNK) { 627 int slen; 628 629 slen = strlen(node->symlink) + 1; 630 if (slen >= (ffs_opts->version == 1 ? 631 UFS1_MAXSYMLINKLEN : 632 UFS2_MAXSYMLINKLEN)) 633 ADDSIZE(slen); 634 } 635 } 636 if (node->type == S_IFDIR) 637 ffs_size_dir(node->child, fsopts); 638 } 639 ADDSIZE(curdirsize); 640 641 if (debug & DEBUG_FS_SIZE_DIR) 642 printf("ffs_size_dir: exit: size %lld inodes %lld\n", 643 (long long)fsopts->size, (long long)fsopts->inodes); 644 } 645 646 static void * 647 ffs_build_dinode1(struct ufs1_dinode *dinp, dirbuf_t *dbufp, fsnode *cur, 648 fsnode *root, fsinfo_t *fsopts) 649 { 650 int slen; 651 void *membuf; 652 struct stat *st = stampst.st_ino != 0 ? &stampst : &cur->inode->st; 653 654 memset(dinp, 0, sizeof(*dinp)); 655 dinp->di_mode = cur->inode->st.st_mode; 656 dinp->di_nlink = cur->inode->nlink; 657 dinp->di_size = cur->inode->st.st_size; 658 #if HAVE_STRUCT_STAT_ST_FLAGS 659 dinp->di_flags = cur->inode->st.st_flags; 660 #endif 661 dinp->di_gen = random(); 662 dinp->di_uid = cur->inode->st.st_uid; 663 dinp->di_gid = cur->inode->st.st_gid; 664 665 dinp->di_atime = st->st_atime; 666 dinp->di_mtime = st->st_mtime; 667 dinp->di_ctime = st->st_ctime; 668 #if HAVE_STRUCT_STAT_ST_MTIMENSEC 669 dinp->di_atimensec = st->st_atimensec; 670 dinp->di_mtimensec = st->st_mtimensec; 671 dinp->di_ctimensec = st->st_ctimensec; 672 #endif 673 /* not set: di_db, di_ib, di_blocks, di_spare */ 674 675 membuf = NULL; 676 if (cur == root) { /* "."; write dirbuf */ 677 membuf = dbufp->buf; 678 dinp->di_size = dbufp->size; 679 } else if (S_ISBLK(cur->type) || S_ISCHR(cur->type)) { 680 dinp->di_size = 0; /* a device */ 681 dinp->di_rdev = 682 ufs_rw32(cur->inode->st.st_rdev, fsopts->needswap); 683 } else if (S_ISLNK(cur->type)) { /* symlink */ 684 slen = strlen(cur->symlink); 685 if (slen < UFS1_MAXSYMLINKLEN) { /* short link */ 686 memcpy(dinp->di_db, cur->symlink, slen); 687 } else 688 membuf = cur->symlink; 689 dinp->di_size = slen; 690 } 691 return membuf; 692 } 693 694 static void * 695 ffs_build_dinode2(struct ufs2_dinode *dinp, dirbuf_t *dbufp, fsnode *cur, 696 fsnode *root, fsinfo_t *fsopts) 697 { 698 int slen; 699 void *membuf; 700 struct stat *st = stampst.st_ino != 0 ? &stampst : &cur->inode->st; 701 702 memset(dinp, 0, sizeof(*dinp)); 703 dinp->di_mode = cur->inode->st.st_mode; 704 dinp->di_nlink = cur->inode->nlink; 705 dinp->di_size = cur->inode->st.st_size; 706 #if HAVE_STRUCT_STAT_ST_FLAGS 707 dinp->di_flags = cur->inode->st.st_flags; 708 #endif 709 dinp->di_gen = random(); 710 dinp->di_uid = cur->inode->st.st_uid; 711 dinp->di_gid = cur->inode->st.st_gid; 712 713 dinp->di_atime = st->st_atime; 714 dinp->di_mtime = st->st_mtime; 715 dinp->di_ctime = st->st_ctime; 716 #if HAVE_STRUCT_STAT_ST_MTIMENSEC 717 dinp->di_atimensec = st->st_atimensec; 718 dinp->di_mtimensec = st->st_mtimensec; 719 dinp->di_ctimensec = st->st_ctimensec; 720 #endif 721 #if HAVE_STRUCT_STAT_BIRTHTIME 722 dinp->di_birthtime = st->st_birthtime; 723 dinp->di_birthnsec = st->st_birthtimensec; 724 #endif 725 /* not set: di_db, di_ib, di_blocks, di_spare */ 726 727 membuf = NULL; 728 if (cur == root) { /* "."; write dirbuf */ 729 membuf = dbufp->buf; 730 dinp->di_size = dbufp->size; 731 } else if (S_ISBLK(cur->type) || S_ISCHR(cur->type)) { 732 dinp->di_size = 0; /* a device */ 733 dinp->di_rdev = 734 ufs_rw64(cur->inode->st.st_rdev, fsopts->needswap); 735 } else if (S_ISLNK(cur->type)) { /* symlink */ 736 slen = strlen(cur->symlink); 737 if (slen < UFS2_MAXSYMLINKLEN) { /* short link */ 738 memcpy(dinp->di_db, cur->symlink, slen); 739 } else 740 membuf = cur->symlink; 741 dinp->di_size = slen; 742 } 743 return membuf; 744 } 745 746 static int 747 ffs_populate_dir(const char *dir, fsnode *root, fsinfo_t *fsopts) 748 { 749 fsnode *cur; 750 dirbuf_t dirbuf; 751 union dinode din; 752 void *membuf; 753 char path[MAXPATHLEN + 1]; 754 ffs_opt_t *ffs_opts = fsopts->fs_specific; 755 756 assert(dir != NULL); 757 assert(root != NULL); 758 assert(fsopts != NULL); 759 assert(ffs_opts != NULL); 760 761 (void)memset(&dirbuf, 0, sizeof(dirbuf)); 762 763 if (debug & DEBUG_FS_POPULATE) 764 printf("ffs_populate_dir: PASS 1 dir %s node %p\n", dir, root); 765 766 /* 767 * pass 1: allocate inode numbers, build directory `file' 768 */ 769 for (cur = root; cur != NULL; cur = cur->next) { 770 if ((cur->inode->flags & FI_ALLOCATED) == 0) { 771 cur->inode->flags |= FI_ALLOCATED; 772 if (cur == root && cur->parent != NULL) 773 cur->inode->ino = cur->parent->inode->ino; 774 else { 775 cur->inode->ino = fsopts->curinode; 776 fsopts->curinode++; 777 } 778 } 779 ffs_make_dirbuf(&dirbuf, cur->name, cur, fsopts->needswap); 780 if (cur == root) { /* we're at "."; add ".." */ 781 ffs_make_dirbuf(&dirbuf, "..", 782 cur->parent == NULL ? cur : cur->parent->first, 783 fsopts->needswap); 784 root->inode->nlink++; /* count my parent's link */ 785 } else if (cur->child != NULL) 786 root->inode->nlink++; /* count my child's link */ 787 788 /* 789 * XXX possibly write file and long symlinks here, 790 * ensuring that blocks get written before inodes? 791 * otoh, this isn't a real filesystem, so who 792 * cares about ordering? :-) 793 */ 794 } 795 if (debug & DEBUG_FS_POPULATE_DIRBUF) 796 ffs_dump_dirbuf(&dirbuf, dir, fsopts->needswap); 797 798 /* 799 * pass 2: write out dirbuf, then non-directories at this level 800 */ 801 if (debug & DEBUG_FS_POPULATE) 802 printf("ffs_populate_dir: PASS 2 dir %s\n", dir); 803 for (cur = root; cur != NULL; cur = cur->next) { 804 if (cur->inode->flags & FI_WRITTEN) 805 continue; /* skip hard-linked entries */ 806 cur->inode->flags |= FI_WRITTEN; 807 808 if (cur->contents == NULL) { 809 if (snprintf(path, sizeof(path), "%s/%s/%s", cur->root, 810 cur->path, cur->name) >= (int)sizeof(path)) 811 errx(1, "Pathname too long."); 812 } 813 814 if (cur->child != NULL) 815 continue; /* child creates own inode */ 816 817 /* build on-disk inode */ 818 if (ffs_opts->version == 1) 819 membuf = ffs_build_dinode1(&din.ffs1_din, &dirbuf, cur, 820 root, fsopts); 821 else 822 membuf = ffs_build_dinode2(&din.ffs2_din, &dirbuf, cur, 823 root, fsopts); 824 825 if (debug & DEBUG_FS_POPULATE_NODE) { 826 printf("ffs_populate_dir: writing ino %d, %s", 827 cur->inode->ino, inode_type(cur->type)); 828 if (cur->inode->nlink > 1) 829 printf(", nlink %d", cur->inode->nlink); 830 putchar('\n'); 831 } 832 833 if (membuf != NULL) { 834 ffs_write_file(&din, cur->inode->ino, membuf, fsopts); 835 } else if (S_ISREG(cur->type)) { 836 ffs_write_file(&din, cur->inode->ino, 837 (cur->contents) ? cur->contents : path, fsopts); 838 } else { 839 assert (! S_ISDIR(cur->type)); 840 ffs_write_inode(&din, cur->inode->ino, fsopts); 841 } 842 } 843 844 /* 845 * pass 3: write out sub-directories 846 */ 847 if (debug & DEBUG_FS_POPULATE) 848 printf("ffs_populate_dir: PASS 3 dir %s\n", dir); 849 for (cur = root; cur != NULL; cur = cur->next) { 850 if (cur->child == NULL) 851 continue; 852 if (snprintf(path, sizeof(path), "%s/%s", dir, cur->name) 853 >= sizeof(path)) 854 errx(1, "Pathname too long."); 855 if (! ffs_populate_dir(path, cur->child, fsopts)) 856 return (0); 857 } 858 859 if (debug & DEBUG_FS_POPULATE) 860 printf("ffs_populate_dir: DONE dir %s\n", dir); 861 862 /* cleanup */ 863 if (dirbuf.buf != NULL) 864 free(dirbuf.buf); 865 return (1); 866 } 867 868 869 static void 870 ffs_write_file(union dinode *din, uint32_t ino, void *buf, fsinfo_t *fsopts) 871 { 872 int isfile, ffd; 873 char *fbuf, *p; 874 off_t bufleft, chunk, offset; 875 ssize_t nread; 876 struct inode in; 877 struct buf * bp; 878 ffs_opt_t *ffs_opts = fsopts->fs_specific; 879 880 assert (din != NULL); 881 assert (buf != NULL); 882 assert (fsopts != NULL); 883 assert (ffs_opts != NULL); 884 885 isfile = S_ISREG(DIP(din, mode)); 886 fbuf = NULL; 887 ffd = -1; 888 p = NULL; 889 890 in.i_fs = (struct fs *)fsopts->superblock; 891 892 if (debug & DEBUG_FS_WRITE_FILE) { 893 printf( 894 "ffs_write_file: ino %u, din %p, isfile %d, %s, size %lld", 895 ino, din, isfile, inode_type(DIP(din, mode) & S_IFMT), 896 (long long)DIP(din, size)); 897 if (isfile) 898 printf(", file '%s'\n", (char *)buf); 899 else 900 printf(", buffer %p\n", buf); 901 } 902 903 in.i_number = ino; 904 in.i_size = DIP(din, size); 905 if (ffs_opts->version == 1) 906 memcpy(&in.i_din.ffs1_din, &din->ffs1_din, 907 sizeof(in.i_din.ffs1_din)); 908 else 909 memcpy(&in.i_din.ffs2_din, &din->ffs2_din, 910 sizeof(in.i_din.ffs2_din)); 911 in.i_fd = fsopts->fd; 912 913 if (DIP(din, size) == 0) 914 goto write_inode_and_leave; /* mmm, cheating */ 915 916 if (isfile) { 917 fbuf = emalloc(ffs_opts->bsize); 918 if ((ffd = open((char *)buf, O_RDONLY, 0444)) == -1) { 919 warn("Can't open `%s' for reading", (char *)buf); 920 goto leave_ffs_write_file; 921 } 922 } else { 923 p = buf; 924 } 925 926 chunk = 0; 927 for (bufleft = DIP(din, size); bufleft > 0; bufleft -= chunk) { 928 chunk = MIN(bufleft, ffs_opts->bsize); 929 if (!isfile) 930 ; 931 else if ((nread = read(ffd, fbuf, chunk)) == -1) 932 err(EXIT_FAILURE, "Reading `%s', %lld bytes to go", 933 (char *)buf, (long long)bufleft); 934 else if (nread != chunk) 935 errx(EXIT_FAILURE, "Reading `%s', %lld bytes to go, " 936 "read %zd bytes, expected %ju bytes, does " 937 "metalog size= attribute mismatch source size?", 938 (char *)buf, (long long)bufleft, nread, 939 (uintmax_t)chunk); 940 else 941 p = fbuf; 942 offset = DIP(din, size) - bufleft; 943 if (debug & DEBUG_FS_WRITE_FILE_BLOCK) 944 printf( 945 "ffs_write_file: write %p offset %lld size %lld left %lld\n", 946 p, (long long)offset, 947 (long long)chunk, (long long)bufleft); 948 /* 949 * XXX if holey support is desired, do the check here 950 * 951 * XXX might need to write out last bit in fragroundup 952 * sized chunk. however, ffs_balloc() handles this for us 953 */ 954 errno = ffs_balloc(&in, offset, chunk, &bp); 955 bad_ffs_write_file: 956 if (errno != 0) 957 err(1, 958 "Writing inode %d (%s), bytes %lld + %lld", 959 ino, 960 isfile ? (char *)buf : 961 inode_type(DIP(din, mode) & S_IFMT), 962 (long long)offset, (long long)chunk); 963 memcpy(bp->b_data, p, chunk); 964 errno = bwrite(bp); 965 if (errno != 0) 966 goto bad_ffs_write_file; 967 brelse(bp, 0); 968 if (!isfile) 969 p += chunk; 970 } 971 972 write_inode_and_leave: 973 ffs_write_inode(&in.i_din, in.i_number, fsopts); 974 975 leave_ffs_write_file: 976 if (fbuf) 977 free(fbuf); 978 if (ffd != -1) 979 close(ffd); 980 } 981 982 983 static void 984 ffs_dump_dirbuf(dirbuf_t *dbuf, const char *dir, int needswap) 985 { 986 doff_t i; 987 struct direct *de; 988 uint16_t reclen; 989 990 assert (dbuf != NULL); 991 assert (dir != NULL); 992 printf("ffs_dump_dirbuf: dir %s size %d cur %d\n", 993 dir, dbuf->size, dbuf->cur); 994 995 for (i = 0; i < dbuf->size; ) { 996 de = (struct direct *)(dbuf->buf + i); 997 reclen = ufs_rw16(de->d_reclen, needswap); 998 printf( 999 " inode %4d %7s offset %4d reclen %3d namlen %3d name %s\n", 1000 ufs_rw32(de->d_ino, needswap), 1001 inode_type(DTTOIF(de->d_type)), i, reclen, 1002 de->d_namlen, de->d_name); 1003 i += reclen; 1004 assert(reclen > 0); 1005 } 1006 } 1007 1008 static void 1009 ffs_make_dirbuf(dirbuf_t *dbuf, const char *name, fsnode *node, int needswap) 1010 { 1011 struct direct de, *dp; 1012 uint16_t llen, reclen; 1013 u_char *newbuf; 1014 1015 assert (dbuf != NULL); 1016 assert (name != NULL); 1017 assert (node != NULL); 1018 /* create direct entry */ 1019 (void)memset(&de, 0, sizeof(de)); 1020 de.d_ino = ufs_rw32(node->inode->ino, needswap); 1021 de.d_type = IFTODT(node->type); 1022 de.d_namlen = (uint8_t)strlen(name); 1023 strcpy(de.d_name, name); 1024 reclen = DIRSIZ_SWAP(0, &de, needswap); 1025 de.d_reclen = ufs_rw16(reclen, needswap); 1026 1027 dp = (struct direct *)(dbuf->buf + dbuf->cur); 1028 llen = 0; 1029 if (dp != NULL) 1030 llen = DIRSIZ_SWAP(0, dp, needswap); 1031 1032 if (debug & DEBUG_FS_MAKE_DIRBUF) 1033 printf( 1034 "ffs_make_dirbuf: dbuf siz %d cur %d lastlen %d\n" 1035 " ino %d type %d reclen %d namlen %d name %.30s\n", 1036 dbuf->size, dbuf->cur, llen, 1037 ufs_rw32(de.d_ino, needswap), de.d_type, reclen, 1038 de.d_namlen, de.d_name); 1039 1040 if (reclen + dbuf->cur + llen > roundup(dbuf->size, DIRBLKSIZ)) { 1041 if (debug & DEBUG_FS_MAKE_DIRBUF) 1042 printf("ffs_make_dirbuf: growing buf to %d\n", 1043 dbuf->size + DIRBLKSIZ); 1044 newbuf = erealloc(dbuf->buf, dbuf->size + DIRBLKSIZ); 1045 dbuf->buf = newbuf; 1046 dbuf->size += DIRBLKSIZ; 1047 memset(dbuf->buf + dbuf->size - DIRBLKSIZ, 0, DIRBLKSIZ); 1048 dbuf->cur = dbuf->size - DIRBLKSIZ; 1049 } else if (dp) { /* shrink end of previous */ 1050 dp->d_reclen = ufs_rw16(llen,needswap); 1051 dbuf->cur += llen; 1052 } 1053 dp = (struct direct *)(dbuf->buf + dbuf->cur); 1054 memcpy(dp, &de, reclen); 1055 dp->d_reclen = ufs_rw16(dbuf->size - dbuf->cur, needswap); 1056 } 1057 1058 /* 1059 * cribbed from sys/ufs/ffs/ffs_alloc.c 1060 */ 1061 static void 1062 ffs_write_inode(union dinode *dp, uint32_t ino, const fsinfo_t *fsopts) 1063 { 1064 char *buf; 1065 struct ufs1_dinode *dp1; 1066 struct ufs2_dinode *dp2, *dip; 1067 struct cg *cgp; 1068 struct fs *fs; 1069 int cg, cgino, i; 1070 daddr_t d; 1071 char sbbuf[FFS_MAXBSIZE]; 1072 int32_t initediblk; 1073 ffs_opt_t *ffs_opts = fsopts->fs_specific; 1074 1075 assert (dp != NULL); 1076 assert (ino > 0); 1077 assert (fsopts != NULL); 1078 assert (ffs_opts != NULL); 1079 1080 fs = (struct fs *)fsopts->superblock; 1081 cg = ino_to_cg(fs, ino); 1082 cgino = ino % fs->fs_ipg; 1083 if (debug & DEBUG_FS_WRITE_INODE) 1084 printf("ffs_write_inode: din %p ino %u cg %d cgino %d\n", 1085 dp, ino, cg, cgino); 1086 1087 ffs_rdfs(fsbtodb(fs, cgtod(fs, cg)), (int)fs->fs_cgsize, &sbbuf, 1088 fsopts); 1089 cgp = (struct cg *)sbbuf; 1090 if (!cg_chkmagic_swap(cgp, fsopts->needswap)) 1091 errx(1, "ffs_write_inode: cg %d: bad magic number", cg); 1092 1093 assert (isclr(cg_inosused_swap(cgp, fsopts->needswap), cgino)); 1094 1095 buf = emalloc(fs->fs_bsize); 1096 dp1 = (struct ufs1_dinode *)buf; 1097 dp2 = (struct ufs2_dinode *)buf; 1098 1099 if (fs->fs_cstotal.cs_nifree == 0) 1100 errx(1, "ffs_write_inode: fs out of inodes for ino %u", 1101 ino); 1102 if (fs->fs_cs(fs, cg).cs_nifree == 0) 1103 errx(1, 1104 "ffs_write_inode: cg %d out of inodes for ino %u", 1105 cg, ino); 1106 setbit(cg_inosused_swap(cgp, fsopts->needswap), cgino); 1107 ufs_add32(cgp->cg_cs.cs_nifree, -1, fsopts->needswap); 1108 fs->fs_cstotal.cs_nifree--; 1109 fs->fs_cs(fs, cg).cs_nifree--; 1110 if (S_ISDIR(DIP(dp, mode))) { 1111 ufs_add32(cgp->cg_cs.cs_ndir, 1, fsopts->needswap); 1112 fs->fs_cstotal.cs_ndir++; 1113 fs->fs_cs(fs, cg).cs_ndir++; 1114 } 1115 1116 /* 1117 * Initialize inode blocks on the fly for UFS2. 1118 */ 1119 initediblk = ufs_rw32(cgp->cg_initediblk, fsopts->needswap); 1120 if (ffs_opts->version == 2 && cgino + INOPB(fs) > initediblk && 1121 initediblk < ufs_rw32(cgp->cg_niblk, fsopts->needswap)) { 1122 memset(buf, 0, fs->fs_bsize); 1123 dip = (struct ufs2_dinode *)buf; 1124 for (i = 0; i < INOPB(fs); i++) { 1125 dip->di_gen = random(); 1126 dip++; 1127 } 1128 ffs_wtfs(fsbtodb(fs, ino_to_fsba(fs, 1129 cg * fs->fs_ipg + initediblk)), 1130 fs->fs_bsize, buf, fsopts); 1131 initediblk += INOPB(fs); 1132 cgp->cg_initediblk = ufs_rw32(initediblk, fsopts->needswap); 1133 } 1134 1135 1136 ffs_wtfs(fsbtodb(fs, cgtod(fs, cg)), (int)fs->fs_cgsize, &sbbuf, 1137 fsopts); 1138 1139 /* now write inode */ 1140 d = fsbtodb(fs, ino_to_fsba(fs, ino)); 1141 ffs_rdfs(d, fs->fs_bsize, buf, fsopts); 1142 if (fsopts->needswap) { 1143 if (ffs_opts->version == 1) 1144 ffs_dinode1_swap(&dp->ffs1_din, 1145 &dp1[ino_to_fsbo(fs, ino)]); 1146 else 1147 ffs_dinode2_swap(&dp->ffs2_din, 1148 &dp2[ino_to_fsbo(fs, ino)]); 1149 } else { 1150 if (ffs_opts->version == 1) 1151 dp1[ino_to_fsbo(fs, ino)] = dp->ffs1_din; 1152 else 1153 dp2[ino_to_fsbo(fs, ino)] = dp->ffs2_din; 1154 } 1155 ffs_wtfs(d, fs->fs_bsize, buf, fsopts); 1156 free(buf); 1157 } 1158 1159 void 1160 panic(const char *fmt, ...) 1161 { 1162 va_list ap; 1163 1164 va_start(ap, fmt); 1165 vwarnx(fmt, ap); 1166 va_end(ap); 1167 exit(1); 1168 } 1169