1 /* $NetBSD: ffs.c,v 1.60 2013/02/03 03:21:21 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 #if HAVE_NBTOOL_CONFIG_H 69 #include "nbtool_config.h" 70 #endif 71 72 #include <sys/cdefs.h> 73 #if defined(__RCSID) && !defined(__lint) 74 __RCSID("$NetBSD: ffs.c,v 1.60 2013/02/03 03:21:21 christos Exp $"); 75 #endif /* !__lint */ 76 77 #include <sys/param.h> 78 79 #if !HAVE_NBTOOL_CONFIG_H 80 #include <sys/mount.h> 81 #endif 82 83 #include <assert.h> 84 #include <errno.h> 85 #include <fcntl.h> 86 #include <stdarg.h> 87 #include <stdio.h> 88 #include <stdlib.h> 89 #include <string.h> 90 #include <unistd.h> 91 #include <util.h> 92 93 #include "makefs.h" 94 #include "ffs.h" 95 96 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS 97 #include <sys/statvfs.h> 98 #endif 99 100 #include <ufs/ufs/dinode.h> 101 #include <ufs/ufs/dir.h> 102 #include <ufs/ffs/fs.h> 103 #include <ufs/ufs/ufs_bswap.h> 104 105 #include "ffs/ufs_inode.h" 106 #include "ffs/newfs_extern.h" 107 #include "ffs/ffs_extern.h" 108 109 #undef DIP 110 #define DIP(dp, field) \ 111 ((ffs_opts->version == 1) ? \ 112 (dp)->ffs1_din.di_##field : (dp)->ffs2_din.di_##field) 113 114 /* 115 * Various file system defaults (cribbed from newfs(8)). 116 */ 117 #define DFL_FRAGSIZE 1024 /* fragment size */ 118 #define DFL_BLKSIZE 8192 /* block size */ 119 #define DFL_SECSIZE 512 /* sector size */ 120 #define DFL_CYLSPERGROUP 65536 /* cylinders per group */ 121 #define DFL_FRAGSPERINODE 4 /* fragments per inode */ 122 #define DFL_ROTDELAY 0 /* rotational delay */ 123 #define DFL_NRPOS 1 /* rotational positions */ 124 #define DFL_RPM 3600 /* rpm of disk */ 125 #define DFL_NSECTORS 64 /* # of sectors */ 126 #define DFL_NTRACKS 16 /* # of tracks */ 127 128 129 typedef struct { 130 u_char *buf; /* buf for directory */ 131 doff_t size; /* full size of buf */ 132 doff_t cur; /* offset of current entry */ 133 } dirbuf_t; 134 135 136 static int ffs_create_image(const char *, fsinfo_t *); 137 static void ffs_dump_fsinfo(fsinfo_t *); 138 static void ffs_dump_dirbuf(dirbuf_t *, const char *, int); 139 static void ffs_make_dirbuf(dirbuf_t *, const char *, fsnode *, int); 140 static int ffs_populate_dir(const char *, fsnode *, fsinfo_t *); 141 static void ffs_size_dir(fsnode *, fsinfo_t *); 142 static void ffs_validate(const char *, fsnode *, fsinfo_t *); 143 static void ffs_write_file(union dinode *, uint32_t, void *, fsinfo_t *); 144 static void ffs_write_inode(union dinode *, uint32_t, const fsinfo_t *); 145 static void *ffs_build_dinode1(struct ufs1_dinode *, dirbuf_t *, fsnode *, 146 fsnode *, fsinfo_t *); 147 static void *ffs_build_dinode2(struct ufs2_dinode *, dirbuf_t *, fsnode *, 148 fsnode *, fsinfo_t *); 149 150 151 152 /* publically visible functions */ 153 void 154 ffs_prep_opts(fsinfo_t *fsopts) 155 { 156 ffs_opt_t *ffs_opts = ecalloc(1, sizeof(*ffs_opts)); 157 158 const option_t ffs_options[] = { 159 { 'b', "bsize", &ffs_opts->bsize, OPT_INT32, 160 1, INT_MAX, "block size" }, 161 { 'f', "fsize", &ffs_opts->fsize, OPT_INT32, 162 1, INT_MAX, "fragment size" }, 163 { 'd', "density", &ffs_opts->density, OPT_INT32, 164 1, INT_MAX, "bytes per inode" }, 165 { 'm', "minfree", &ffs_opts->minfree, OPT_INT32, 166 0, 99, "minfree" }, 167 { 'M', "maxbpf", &ffs_opts->maxbpg, OPT_INT32, 168 1, INT_MAX, "max blocks per file in a cg" }, 169 { 'a', "avgfilesize", &ffs_opts->avgfilesize, OPT_INT32, 170 1, INT_MAX, "expected average file size" }, 171 { 'n', "avgfpdir", &ffs_opts->avgfpdir, OPT_INT32, 172 1, INT_MAX, "expected # of files per directory" }, 173 { 'x', "extent", &ffs_opts->maxbsize, OPT_INT32, 174 1, INT_MAX, "maximum # extent size" }, 175 { 'g', "maxbpcg", &ffs_opts->maxblkspercg, OPT_INT32, 176 1, INT_MAX, "max # of blocks per group" }, 177 { 'v', "version", &ffs_opts->version, OPT_INT32, 178 1, 2, "UFS version" }, 179 { 'o', "optimization", NULL, OPT_STRBUF, 180 0, 0, "Optimization (time|space)" }, 181 { 'l', "label", ffs_opts->label, OPT_STRARRAY, 182 1, sizeof(ffs_opts->label), "UFS label" }, 183 { .name = NULL } 184 }; 185 186 ffs_opts->bsize= -1; 187 ffs_opts->fsize= -1; 188 ffs_opts->cpg= -1; 189 ffs_opts->density= -1; 190 ffs_opts->minfree= -1; 191 ffs_opts->optimization= -1; 192 ffs_opts->maxcontig= -1; 193 ffs_opts->maxbpg= -1; 194 ffs_opts->avgfilesize= -1; 195 ffs_opts->avgfpdir= -1; 196 ffs_opts->version = 1; 197 198 fsopts->fs_specific = ffs_opts; 199 fsopts->fs_options = copy_opts(ffs_options); 200 } 201 202 void 203 ffs_cleanup_opts(fsinfo_t *fsopts) 204 { 205 free(fsopts->fs_specific); 206 free(fsopts->fs_options); 207 } 208 209 int 210 ffs_parse_opts(const char *option, fsinfo_t *fsopts) 211 { 212 ffs_opt_t *ffs_opts = fsopts->fs_specific; 213 option_t *ffs_options = fsopts->fs_options; 214 char buf[1024]; 215 216 int rv; 217 218 assert(option != NULL); 219 assert(fsopts != NULL); 220 assert(ffs_opts != NULL); 221 222 if (debug & DEBUG_FS_PARSE_OPTS) 223 printf("ffs_parse_opts: got `%s'\n", option); 224 225 rv = set_option(ffs_options, option, buf, sizeof(buf)); 226 if (rv == -1) 227 return 0; 228 229 if (ffs_options[rv].name == NULL) 230 abort(); 231 232 switch (ffs_options[rv].letter) { 233 case 'o': 234 if (strcmp(buf, "time") == 0) { 235 ffs_opts->optimization = FS_OPTTIME; 236 } else if (strcmp(buf, "space") == 0) { 237 ffs_opts->optimization = FS_OPTSPACE; 238 } else { 239 warnx("Invalid optimization `%s'", buf); 240 return 0; 241 } 242 break; 243 default: 244 break; 245 } 246 return 1; 247 } 248 249 250 void 251 ffs_makefs(const char *image, const char *dir, fsnode *root, fsinfo_t *fsopts) 252 { 253 struct fs *superblock; 254 struct timeval start; 255 256 assert(image != NULL); 257 assert(dir != NULL); 258 assert(root != NULL); 259 assert(fsopts != NULL); 260 261 if (debug & DEBUG_FS_MAKEFS) 262 printf("ffs_makefs: image %s directory %s root %p\n", 263 image, dir, root); 264 265 /* validate tree and options */ 266 TIMER_START(start); 267 ffs_validate(dir, root, fsopts); 268 TIMER_RESULTS(start, "ffs_validate"); 269 270 printf("Calculated size of `%s': %lld bytes, %lld inodes\n", 271 image, (long long)fsopts->size, (long long)fsopts->inodes); 272 273 /* create image */ 274 TIMER_START(start); 275 if (ffs_create_image(image, fsopts) == -1) 276 errx(1, "Image file `%s' not created.", image); 277 TIMER_RESULTS(start, "ffs_create_image"); 278 279 fsopts->curinode = UFS_ROOTINO; 280 281 if (debug & DEBUG_FS_MAKEFS) 282 putchar('\n'); 283 284 /* populate image */ 285 printf("Populating `%s'\n", image); 286 TIMER_START(start); 287 if (! ffs_populate_dir(dir, root, fsopts)) 288 errx(1, "Image file `%s' not populated.", image); 289 TIMER_RESULTS(start, "ffs_populate_dir"); 290 291 /* ensure no outstanding buffers remain */ 292 if (debug & DEBUG_FS_MAKEFS) 293 bcleanup(); 294 295 /* update various superblock parameters */ 296 superblock = fsopts->superblock; 297 superblock->fs_fmod = 0; 298 superblock->fs_old_cstotal.cs_ndir = superblock->fs_cstotal.cs_ndir; 299 superblock->fs_old_cstotal.cs_nbfree = superblock->fs_cstotal.cs_nbfree; 300 superblock->fs_old_cstotal.cs_nifree = superblock->fs_cstotal.cs_nifree; 301 superblock->fs_old_cstotal.cs_nffree = superblock->fs_cstotal.cs_nffree; 302 303 /* write out superblock; image is now complete */ 304 ffs_write_superblock(fsopts->superblock, fsopts); 305 if (close(fsopts->fd) == -1) 306 err(1, "Closing `%s'", image); 307 fsopts->fd = -1; 308 printf("Image `%s' complete\n", image); 309 } 310 311 /* end of public functions */ 312 313 314 static void 315 ffs_validate(const char *dir, fsnode *root, fsinfo_t *fsopts) 316 { 317 int32_t ncg = 1; 318 #if notyet 319 int32_t spc, nspf, ncyl, fssize; 320 #endif 321 ffs_opt_t *ffs_opts = fsopts->fs_specific; 322 323 assert(dir != NULL); 324 assert(root != NULL); 325 assert(fsopts != NULL); 326 assert(ffs_opts != NULL); 327 328 if (debug & DEBUG_FS_VALIDATE) { 329 printf("ffs_validate: before defaults set:\n"); 330 ffs_dump_fsinfo(fsopts); 331 } 332 333 /* set FFS defaults */ 334 if (fsopts->sectorsize == -1) 335 fsopts->sectorsize = DFL_SECSIZE; 336 if (ffs_opts->fsize == -1) 337 ffs_opts->fsize = MAX(DFL_FRAGSIZE, fsopts->sectorsize); 338 if (ffs_opts->bsize == -1) 339 ffs_opts->bsize = MIN(DFL_BLKSIZE, 8 * ffs_opts->fsize); 340 if (ffs_opts->cpg == -1) 341 ffs_opts->cpg = DFL_CYLSPERGROUP; 342 else 343 ffs_opts->cpgflg = 1; 344 /* fsopts->density is set below */ 345 if (ffs_opts->nsectors == -1) 346 ffs_opts->nsectors = DFL_NSECTORS; 347 if (ffs_opts->minfree == -1) 348 ffs_opts->minfree = MINFREE; 349 if (ffs_opts->optimization == -1) 350 ffs_opts->optimization = DEFAULTOPT; 351 if (ffs_opts->maxcontig == -1) 352 ffs_opts->maxcontig = 353 MAX(1, MIN(MAXPHYS, FFS_MAXBSIZE) / ffs_opts->bsize); 354 /* XXX ondisk32 */ 355 if (ffs_opts->maxbpg == -1) 356 ffs_opts->maxbpg = ffs_opts->bsize / sizeof(int32_t); 357 if (ffs_opts->avgfilesize == -1) 358 ffs_opts->avgfilesize = AVFILESIZ; 359 if (ffs_opts->avgfpdir == -1) 360 ffs_opts->avgfpdir = AFPDIR; 361 362 /* calculate size of tree */ 363 ffs_size_dir(root, fsopts); 364 fsopts->inodes += UFS_ROOTINO; /* include first two inodes */ 365 366 if (debug & DEBUG_FS_VALIDATE) 367 printf("ffs_validate: size of tree: %lld bytes, %lld inodes\n", 368 (long long)fsopts->size, (long long)fsopts->inodes); 369 370 /* add requested slop */ 371 fsopts->size += fsopts->freeblocks; 372 fsopts->inodes += fsopts->freefiles; 373 if (fsopts->freefilepc > 0) 374 fsopts->inodes = 375 fsopts->inodes * (100 + fsopts->freefilepc) / 100; 376 if (fsopts->freeblockpc > 0) 377 fsopts->size = 378 fsopts->size * (100 + fsopts->freeblockpc) / 100; 379 380 /* add space needed for superblocks */ 381 /* 382 * The old SBOFF (SBLOCK_UFS1) is used here because makefs is 383 * typically used for small filesystems where space matters. 384 * XXX make this an option. 385 */ 386 fsopts->size += (SBLOCK_UFS1 + SBLOCKSIZE) * ncg; 387 /* add space needed to store inodes, x3 for blockmaps, etc */ 388 if (ffs_opts->version == 1) 389 fsopts->size += ncg * DINODE1_SIZE * 390 roundup(fsopts->inodes / ncg, 391 ffs_opts->bsize / DINODE1_SIZE); 392 else 393 fsopts->size += ncg * DINODE2_SIZE * 394 roundup(fsopts->inodes / ncg, 395 ffs_opts->bsize / DINODE2_SIZE); 396 397 /* add minfree */ 398 if (ffs_opts->minfree > 0) 399 fsopts->size = 400 fsopts->size * (100 + ffs_opts->minfree) / 100; 401 /* 402 * XXX any other fs slop to add, such as csum's, bitmaps, etc ?? 403 */ 404 405 if (fsopts->size < fsopts->minsize) /* ensure meets minimum size */ 406 fsopts->size = fsopts->minsize; 407 408 /* round up to the next block */ 409 fsopts->size = roundup(fsopts->size, ffs_opts->bsize); 410 411 /* calculate density if necessary */ 412 if (ffs_opts->density == -1) 413 ffs_opts->density = fsopts->size / fsopts->inodes + 1; 414 415 if (debug & DEBUG_FS_VALIDATE) { 416 printf("ffs_validate: after defaults set:\n"); 417 ffs_dump_fsinfo(fsopts); 418 printf("ffs_validate: dir %s; %lld bytes, %lld inodes\n", 419 dir, (long long)fsopts->size, (long long)fsopts->inodes); 420 } 421 /* now check calculated sizes vs requested sizes */ 422 if (fsopts->maxsize > 0 && fsopts->size > fsopts->maxsize) { 423 errx(1, "`%s' size of %lld is larger than the maxsize of %lld.", 424 dir, (long long)fsopts->size, (long long)fsopts->maxsize); 425 } 426 } 427 428 429 static void 430 ffs_dump_fsinfo(fsinfo_t *f) 431 { 432 433 ffs_opt_t *fs = f->fs_specific; 434 435 printf("fsopts at %p\n", f); 436 437 printf("\tsize %lld, inodes %lld, curinode %u\n", 438 (long long)f->size, (long long)f->inodes, f->curinode); 439 440 printf("\tminsize %lld, maxsize %lld\n", 441 (long long)f->minsize, (long long)f->maxsize); 442 printf("\tfree files %lld, freefile %% %d\n", 443 (long long)f->freefiles, f->freefilepc); 444 printf("\tfree blocks %lld, freeblock %% %d\n", 445 (long long)f->freeblocks, f->freeblockpc); 446 printf("\tneedswap %d, sectorsize %d\n", f->needswap, f->sectorsize); 447 448 printf("\tbsize %d, fsize %d, cpg %d, density %d\n", 449 fs->bsize, fs->fsize, fs->cpg, fs->density); 450 printf("\tnsectors %d, rpm %d, minfree %d\n", 451 fs->nsectors, fs->rpm, fs->minfree); 452 printf("\tmaxcontig %d, maxbpg %d\n", 453 fs->maxcontig, fs->maxbpg); 454 printf("\toptimization %s\n", 455 fs->optimization == FS_OPTSPACE ? "space" : "time"); 456 } 457 458 459 static int 460 ffs_create_image(const char *image, fsinfo_t *fsopts) 461 { 462 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS 463 struct statvfs sfs; 464 #endif 465 struct fs *fs; 466 char *buf; 467 int i, bufsize; 468 off_t bufrem; 469 int oflags = O_RDWR | O_CREAT; 470 471 assert (image != NULL); 472 assert (fsopts != NULL); 473 474 /* create image */ 475 if (fsopts->offset == 0) 476 oflags |= O_TRUNC; 477 if ((fsopts->fd = open(image, oflags, 0666)) == -1) { 478 warn("Can't open `%s' for writing", image); 479 return (-1); 480 } 481 482 /* zero image */ 483 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS 484 if (fstatvfs(fsopts->fd, &sfs) == -1) { 485 #endif 486 bufsize = 8192; 487 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS 488 warn("can't fstatvfs `%s', using default %d byte chunk", 489 image, bufsize); 490 } else 491 bufsize = sfs.f_iosize; 492 #endif 493 bufrem = fsopts->size; 494 495 if (fsopts->sparse) { 496 if (ftruncate(fsopts->fd, bufrem) == -1) { 497 printf ("ERROR in truncate. Sparse option disabled\n"); 498 fsopts->sparse = 0; 499 } else { 500 bufrem = 0; /* File truncated at bufrem. Remaining is 0 */ 501 buf = NULL; 502 } 503 } 504 505 if (fsopts->offset != 0) 506 if (lseek(fsopts->fd, fsopts->offset, SEEK_SET) == -1) { 507 warn("can't seek"); 508 return -1; 509 } 510 511 if ((debug & DEBUG_FS_CREATE_IMAGE) && fsopts->sparse == 0) 512 printf( 513 "zero-ing image `%s', %lld sectors, using %d byte chunks\n", 514 image, (long long)bufrem, bufsize); 515 if (bufrem > 0) 516 buf = ecalloc(1, bufsize); 517 while (bufrem > 0) { 518 i = write(fsopts->fd, buf, MIN(bufsize, bufrem)); 519 if (i == -1) { 520 warn("zeroing image, %lld bytes to go", 521 (long long)bufrem); 522 free(buf); 523 return (-1); 524 } 525 bufrem -= i; 526 } 527 if (buf) 528 free(buf); 529 530 /* make the file system */ 531 if (debug & DEBUG_FS_CREATE_IMAGE) 532 printf("calling mkfs(\"%s\", ...)\n", image); 533 fs = ffs_mkfs(image, fsopts); 534 fsopts->superblock = (void *)fs; 535 if (debug & DEBUG_FS_CREATE_IMAGE) { 536 time_t t; 537 538 t = (time_t)((struct fs *)fsopts->superblock)->fs_time; 539 printf("mkfs returned %p; fs_time %s", 540 fsopts->superblock, ctime(&t)); 541 printf("fs totals: nbfree %lld, nffree %lld, nifree %lld, ndir %lld\n", 542 (long long)fs->fs_cstotal.cs_nbfree, 543 (long long)fs->fs_cstotal.cs_nffree, 544 (long long)fs->fs_cstotal.cs_nifree, 545 (long long)fs->fs_cstotal.cs_ndir); 546 } 547 548 if ((off_t)(fs->fs_cstotal.cs_nifree + UFS_ROOTINO) < fsopts->inodes) { 549 warnx( 550 "Image file `%s' has %lld free inodes; %lld are required.", 551 image, 552 (long long)(fs->fs_cstotal.cs_nifree + UFS_ROOTINO), 553 (long long)fsopts->inodes); 554 return (-1); 555 } 556 return (fsopts->fd); 557 } 558 559 560 static void 561 ffs_size_dir(fsnode *root, fsinfo_t *fsopts) 562 { 563 struct direct tmpdir; 564 fsnode * node; 565 int curdirsize, this; 566 ffs_opt_t *ffs_opts = fsopts->fs_specific; 567 568 /* node may be NULL (empty directory) */ 569 assert(fsopts != NULL); 570 assert(ffs_opts != NULL); 571 572 if (debug & DEBUG_FS_SIZE_DIR) 573 printf("ffs_size_dir: entry: bytes %lld inodes %lld\n", 574 (long long)fsopts->size, (long long)fsopts->inodes); 575 576 #define ADDDIRENT(e) do { \ 577 tmpdir.d_namlen = strlen((e)); \ 578 this = DIRSIZ(0, &tmpdir, 0); \ 579 if (debug & DEBUG_FS_SIZE_DIR_ADD_DIRENT) \ 580 printf("ADDDIRENT: was: %s (%d) this %d cur %d\n", \ 581 e, tmpdir.d_namlen, this, curdirsize); \ 582 if (this + curdirsize > roundup(curdirsize, DIRBLKSIZ)) \ 583 curdirsize = roundup(curdirsize, DIRBLKSIZ); \ 584 curdirsize += this; \ 585 if (debug & DEBUG_FS_SIZE_DIR_ADD_DIRENT) \ 586 printf("ADDDIRENT: now: %s (%d) this %d cur %d\n", \ 587 e, tmpdir.d_namlen, this, curdirsize); \ 588 } while (0); 589 590 /* 591 * XXX this needs to take into account extra space consumed 592 * by indirect blocks, etc. 593 */ 594 #define ADDSIZE(x) do { \ 595 fsopts->size += roundup((x), ffs_opts->fsize); \ 596 } while (0); 597 598 curdirsize = 0; 599 for (node = root; node != NULL; node = node->next) { 600 ADDDIRENT(node->name); 601 if (node == root) { /* we're at "." */ 602 assert(strcmp(node->name, ".") == 0); 603 ADDDIRENT(".."); 604 } else if ((node->inode->flags & FI_SIZED) == 0) { 605 /* don't count duplicate names */ 606 node->inode->flags |= FI_SIZED; 607 if (debug & DEBUG_FS_SIZE_DIR_NODE) 608 printf("ffs_size_dir: `%s' size %lld\n", 609 node->name, 610 (long long)node->inode->st.st_size); 611 fsopts->inodes++; 612 if (node->type == S_IFREG) 613 ADDSIZE(node->inode->st.st_size); 614 if (node->type == S_IFLNK) { 615 size_t slen; 616 617 slen = strlen(node->symlink) + 1; 618 if (slen >= (ffs_opts->version == 1 ? 619 UFS1_MAXSYMLINKLEN : 620 UFS2_MAXSYMLINKLEN)) 621 ADDSIZE(slen); 622 } 623 } 624 if (node->type == S_IFDIR) 625 ffs_size_dir(node->child, fsopts); 626 } 627 ADDSIZE(curdirsize); 628 629 if (debug & DEBUG_FS_SIZE_DIR) 630 printf("ffs_size_dir: exit: size %lld inodes %lld\n", 631 (long long)fsopts->size, (long long)fsopts->inodes); 632 } 633 634 static void * 635 ffs_build_dinode1(struct ufs1_dinode *dinp, dirbuf_t *dbufp, fsnode *cur, 636 fsnode *root, fsinfo_t *fsopts) 637 { 638 size_t slen; 639 void *membuf; 640 641 memset(dinp, 0, sizeof(*dinp)); 642 dinp->di_mode = cur->inode->st.st_mode; 643 dinp->di_nlink = cur->inode->nlink; 644 dinp->di_size = cur->inode->st.st_size; 645 dinp->di_atime = cur->inode->st.st_atime; 646 dinp->di_mtime = cur->inode->st.st_mtime; 647 dinp->di_ctime = cur->inode->st.st_ctime; 648 #if HAVE_STRUCT_STAT_ST_MTIMENSEC 649 dinp->di_atimensec = cur->inode->st.st_atimensec; 650 dinp->di_mtimensec = cur->inode->st.st_mtimensec; 651 dinp->di_ctimensec = cur->inode->st.st_ctimensec; 652 #endif 653 #if HAVE_STRUCT_STAT_ST_FLAGS 654 dinp->di_flags = cur->inode->st.st_flags; 655 #endif 656 #if HAVE_STRUCT_STAT_ST_GEN 657 dinp->di_gen = cur->inode->st.st_gen; 658 #endif 659 dinp->di_uid = cur->inode->st.st_uid; 660 dinp->di_gid = cur->inode->st.st_gid; 661 /* not set: di_db, di_ib, di_blocks, di_spare */ 662 663 membuf = NULL; 664 if (cur == root) { /* "."; write dirbuf */ 665 membuf = dbufp->buf; 666 dinp->di_size = dbufp->size; 667 } else if (S_ISBLK(cur->type) || S_ISCHR(cur->type)) { 668 dinp->di_size = 0; /* a device */ 669 dinp->di_rdev = 670 ufs_rw32(cur->inode->st.st_rdev, fsopts->needswap); 671 } else if (S_ISLNK(cur->type)) { /* symlink */ 672 slen = strlen(cur->symlink); 673 if (slen < UFS1_MAXSYMLINKLEN) { /* short link */ 674 memcpy(dinp->di_db, cur->symlink, slen); 675 } else 676 membuf = cur->symlink; 677 dinp->di_size = slen; 678 } 679 return membuf; 680 } 681 682 static void * 683 ffs_build_dinode2(struct ufs2_dinode *dinp, dirbuf_t *dbufp, fsnode *cur, 684 fsnode *root, fsinfo_t *fsopts) 685 { 686 size_t slen; 687 void *membuf; 688 689 memset(dinp, 0, sizeof(*dinp)); 690 dinp->di_mode = cur->inode->st.st_mode; 691 dinp->di_nlink = cur->inode->nlink; 692 dinp->di_size = cur->inode->st.st_size; 693 dinp->di_atime = cur->inode->st.st_atime; 694 dinp->di_mtime = cur->inode->st.st_mtime; 695 dinp->di_ctime = cur->inode->st.st_ctime; 696 #if HAVE_STRUCT_STAT_ST_MTIMENSEC 697 dinp->di_atimensec = cur->inode->st.st_atimensec; 698 dinp->di_mtimensec = cur->inode->st.st_mtimensec; 699 dinp->di_ctimensec = cur->inode->st.st_ctimensec; 700 #endif 701 #if HAVE_STRUCT_STAT_ST_FLAGS 702 dinp->di_flags = cur->inode->st.st_flags; 703 #endif 704 #if HAVE_STRUCT_STAT_ST_GEN 705 dinp->di_gen = cur->inode->st.st_gen; 706 #endif 707 #if HAVE_STRUCT_STAT_BIRTHTIME 708 dinp->di_birthtime = cur->inode->st.st_birthtime; 709 dinp->di_birthnsec = cur->inode->st.st_birthtimensec; 710 #endif 711 dinp->di_uid = cur->inode->st.st_uid; 712 dinp->di_gid = cur->inode->st.st_gid; 713 /* not set: di_db, di_ib, di_blocks, di_spare */ 714 715 membuf = NULL; 716 if (cur == root) { /* "."; write dirbuf */ 717 membuf = dbufp->buf; 718 dinp->di_size = dbufp->size; 719 } else if (S_ISBLK(cur->type) || S_ISCHR(cur->type)) { 720 dinp->di_size = 0; /* a device */ 721 dinp->di_rdev = 722 ufs_rw64(cur->inode->st.st_rdev, fsopts->needswap); 723 } else if (S_ISLNK(cur->type)) { /* symlink */ 724 slen = strlen(cur->symlink); 725 if (slen < UFS2_MAXSYMLINKLEN) { /* short link */ 726 memcpy(dinp->di_db, cur->symlink, slen); 727 } else 728 membuf = cur->symlink; 729 dinp->di_size = slen; 730 } 731 return membuf; 732 } 733 734 static int 735 ffs_populate_dir(const char *dir, fsnode *root, fsinfo_t *fsopts) 736 { 737 fsnode *cur; 738 dirbuf_t dirbuf; 739 union dinode din; 740 void *membuf; 741 char path[MAXPATHLEN + 1]; 742 ffs_opt_t *ffs_opts = fsopts->fs_specific; 743 744 assert(dir != NULL); 745 assert(root != NULL); 746 assert(fsopts != NULL); 747 assert(ffs_opts != NULL); 748 749 (void)memset(&dirbuf, 0, sizeof(dirbuf)); 750 751 if (debug & DEBUG_FS_POPULATE) 752 printf("ffs_populate_dir: PASS 1 dir %s node %p\n", dir, root); 753 754 /* 755 * pass 1: allocate inode numbers, build directory `file' 756 */ 757 for (cur = root; cur != NULL; cur = cur->next) { 758 if ((cur->inode->flags & FI_ALLOCATED) == 0) { 759 cur->inode->flags |= FI_ALLOCATED; 760 if (cur == root && cur->parent != NULL) 761 cur->inode->ino = cur->parent->inode->ino; 762 else { 763 cur->inode->ino = fsopts->curinode; 764 fsopts->curinode++; 765 } 766 } 767 ffs_make_dirbuf(&dirbuf, cur->name, cur, fsopts->needswap); 768 if (cur == root) { /* we're at "."; add ".." */ 769 ffs_make_dirbuf(&dirbuf, "..", 770 cur->parent == NULL ? cur : cur->parent->first, 771 fsopts->needswap); 772 root->inode->nlink++; /* count my parent's link */ 773 } else if (cur->child != NULL) 774 root->inode->nlink++; /* count my child's link */ 775 776 /* 777 * XXX possibly write file and long symlinks here, 778 * ensuring that blocks get written before inodes? 779 * otoh, this isn't a real filesystem, so who 780 * cares about ordering? :-) 781 */ 782 } 783 if (debug & DEBUG_FS_POPULATE_DIRBUF) 784 ffs_dump_dirbuf(&dirbuf, dir, fsopts->needswap); 785 786 /* 787 * pass 2: write out dirbuf, then non-directories at this level 788 */ 789 if (debug & DEBUG_FS_POPULATE) 790 printf("ffs_populate_dir: PASS 2 dir %s\n", dir); 791 for (cur = root; cur != NULL; cur = cur->next) { 792 if (cur->inode->flags & FI_WRITTEN) 793 continue; /* skip hard-linked entries */ 794 cur->inode->flags |= FI_WRITTEN; 795 796 if ((size_t)snprintf(path, sizeof(path), "%s/%s/%s", cur->root, 797 cur->path, cur->name) >= sizeof(path)) 798 errx(1, "Pathname too long."); 799 800 if (cur->child != NULL) 801 continue; /* child creates own inode */ 802 803 /* build on-disk inode */ 804 if (ffs_opts->version == 1) 805 membuf = ffs_build_dinode1(&din.ffs1_din, &dirbuf, cur, 806 root, fsopts); 807 else 808 membuf = ffs_build_dinode2(&din.ffs2_din, &dirbuf, cur, 809 root, fsopts); 810 811 if (debug & DEBUG_FS_POPULATE_NODE) { 812 printf("ffs_populate_dir: writing ino %d, %s", 813 cur->inode->ino, inode_type(cur->type)); 814 if (cur->inode->nlink > 1) 815 printf(", nlink %d", cur->inode->nlink); 816 putchar('\n'); 817 } 818 819 if (membuf != NULL) { 820 ffs_write_file(&din, cur->inode->ino, membuf, fsopts); 821 } else if (S_ISREG(cur->type)) { 822 ffs_write_file(&din, cur->inode->ino, path, fsopts); 823 } else { 824 assert (! S_ISDIR(cur->type)); 825 ffs_write_inode(&din, cur->inode->ino, fsopts); 826 } 827 } 828 829 /* 830 * pass 3: write out sub-directories 831 */ 832 if (debug & DEBUG_FS_POPULATE) 833 printf("ffs_populate_dir: PASS 3 dir %s\n", dir); 834 for (cur = root; cur != NULL; cur = cur->next) { 835 if (cur->child == NULL) 836 continue; 837 if ((size_t)snprintf(path, sizeof(path), "%s/%s", dir, 838 cur->name) >= sizeof(path)) 839 errx(1, "Pathname too long."); 840 if (! ffs_populate_dir(path, cur->child, fsopts)) 841 return (0); 842 } 843 844 if (debug & DEBUG_FS_POPULATE) 845 printf("ffs_populate_dir: DONE dir %s\n", dir); 846 847 /* cleanup */ 848 if (dirbuf.buf != NULL) 849 free(dirbuf.buf); 850 return (1); 851 } 852 853 854 static void 855 ffs_write_file(union dinode *din, uint32_t ino, void *buf, fsinfo_t *fsopts) 856 { 857 int isfile, ffd; 858 char *fbuf, *p; 859 off_t bufleft, chunk, offset; 860 ssize_t nread; 861 struct inode in; 862 struct buf * bp; 863 ffs_opt_t *ffs_opts = fsopts->fs_specific; 864 struct vnode vp = { fsopts, NULL }; 865 866 assert (din != NULL); 867 assert (buf != NULL); 868 assert (fsopts != NULL); 869 assert (ffs_opts != NULL); 870 871 isfile = S_ISREG(DIP(din, mode)); 872 fbuf = NULL; 873 ffd = -1; 874 p = NULL; 875 876 in.i_fs = (struct fs *)fsopts->superblock; 877 in.i_devvp = &vp; 878 879 if (debug & DEBUG_FS_WRITE_FILE) { 880 printf( 881 "ffs_write_file: ino %u, din %p, isfile %d, %s, size %lld", 882 ino, din, isfile, inode_type(DIP(din, mode) & S_IFMT), 883 (long long)DIP(din, size)); 884 if (isfile) 885 printf(", file '%s'\n", (char *)buf); 886 else 887 printf(", buffer %p\n", buf); 888 } 889 890 in.i_number = ino; 891 in.i_size = DIP(din, size); 892 if (ffs_opts->version == 1) 893 memcpy(&in.i_din.ffs1_din, &din->ffs1_din, 894 sizeof(in.i_din.ffs1_din)); 895 else 896 memcpy(&in.i_din.ffs2_din, &din->ffs2_din, 897 sizeof(in.i_din.ffs2_din)); 898 899 if (DIP(din, size) == 0) 900 goto write_inode_and_leave; /* mmm, cheating */ 901 902 if (isfile) { 903 fbuf = emalloc(ffs_opts->bsize); 904 if ((ffd = open((char *)buf, O_RDONLY, 0444)) == -1) { 905 warn("Can't open `%s' for reading", (char *)buf); 906 goto leave_ffs_write_file; 907 } 908 } else { 909 p = buf; 910 } 911 912 chunk = 0; 913 for (bufleft = DIP(din, size); bufleft > 0; bufleft -= chunk) { 914 chunk = MIN(bufleft, ffs_opts->bsize); 915 if (!isfile) 916 ; 917 else if ((nread = read(ffd, fbuf, chunk)) == -1) 918 err(EXIT_FAILURE, "Reading `%s', %lld bytes to go", 919 (char *)buf, (long long)bufleft); 920 else if (nread != chunk) 921 errx(EXIT_FAILURE, "Reading `%s', %lld bytes to go, " 922 "read %zd bytes, expected %ju bytes, does " 923 "metalog size= attribute mismatch source size?", 924 (char *)buf, (long long)bufleft, nread, 925 (uintmax_t)chunk); 926 else 927 p = fbuf; 928 offset = DIP(din, size) - bufleft; 929 if (debug & DEBUG_FS_WRITE_FILE_BLOCK) 930 printf( 931 "ffs_write_file: write %p offset %lld size %lld left %lld\n", 932 p, (long long)offset, 933 (long long)chunk, (long long)bufleft); 934 /* 935 * XXX if holey support is desired, do the check here 936 * 937 * XXX might need to write out last bit in fragroundup 938 * sized chunk. however, ffs_balloc() handles this for us 939 */ 940 errno = ffs_balloc(&in, offset, chunk, &bp); 941 bad_ffs_write_file: 942 if (errno != 0) 943 err(1, 944 "Writing inode %d (%s), bytes %lld + %lld", 945 ino, 946 isfile ? (char *)buf : 947 inode_type(DIP(din, mode) & S_IFMT), 948 (long long)offset, (long long)chunk); 949 memcpy(bp->b_data, p, chunk); 950 errno = bwrite(bp); 951 if (errno != 0) 952 goto bad_ffs_write_file; 953 if (!isfile) 954 p += chunk; 955 } 956 957 write_inode_and_leave: 958 ffs_write_inode(&in.i_din, in.i_number, fsopts); 959 960 leave_ffs_write_file: 961 if (fbuf) 962 free(fbuf); 963 if (ffd != -1) 964 close(ffd); 965 } 966 967 968 static void 969 ffs_dump_dirbuf(dirbuf_t *dbuf, const char *dir, int needswap) 970 { 971 doff_t i; 972 struct direct *de; 973 uint16_t reclen; 974 975 assert (dbuf != NULL); 976 assert (dir != NULL); 977 printf("ffs_dump_dirbuf: dir %s size %d cur %d\n", 978 dir, dbuf->size, dbuf->cur); 979 980 for (i = 0; i < dbuf->size; ) { 981 de = (struct direct *)(dbuf->buf + i); 982 reclen = ufs_rw16(de->d_reclen, needswap); 983 printf( 984 " inode %4d %7s offset %4d reclen %3d namlen %3d name %s\n", 985 ufs_rw32(de->d_fileno, needswap), 986 inode_type(DTTOIF(de->d_type)), i, reclen, 987 de->d_namlen, de->d_name); 988 i += reclen; 989 assert(reclen > 0); 990 } 991 } 992 993 static void 994 ffs_make_dirbuf(dirbuf_t *dbuf, const char *name, fsnode *node, int needswap) 995 { 996 struct direct de, *dp; 997 uint16_t llen, reclen; 998 u_char *newbuf; 999 1000 assert (dbuf != NULL); 1001 assert (name != NULL); 1002 assert (node != NULL); 1003 /* create direct entry */ 1004 (void)memset(&de, 0, sizeof(de)); 1005 de.d_fileno = ufs_rw32(node->inode->ino, needswap); 1006 de.d_type = IFTODT(node->type); 1007 de.d_namlen = (uint8_t)strlen(name); 1008 strcpy(de.d_name, name); 1009 reclen = DIRSIZ(0, &de, needswap); 1010 de.d_reclen = ufs_rw16(reclen, needswap); 1011 1012 dp = (struct direct *)(dbuf->buf + dbuf->cur); 1013 llen = 0; 1014 if (dp != NULL) 1015 llen = DIRSIZ(0, dp, needswap); 1016 1017 if (debug & DEBUG_FS_MAKE_DIRBUF) 1018 printf( 1019 "ffs_make_dirbuf: dbuf siz %d cur %d lastlen %d\n" 1020 " ino %d type %d reclen %d namlen %d name %.30s\n", 1021 dbuf->size, dbuf->cur, llen, 1022 ufs_rw32(de.d_fileno, needswap), de.d_type, reclen, 1023 de.d_namlen, de.d_name); 1024 1025 if (reclen + dbuf->cur + llen > roundup(dbuf->size, DIRBLKSIZ)) { 1026 if (debug & DEBUG_FS_MAKE_DIRBUF) 1027 printf("ffs_make_dirbuf: growing buf to %d\n", 1028 dbuf->size + DIRBLKSIZ); 1029 newbuf = erealloc(dbuf->buf, dbuf->size + DIRBLKSIZ); 1030 dbuf->buf = newbuf; 1031 dbuf->size += DIRBLKSIZ; 1032 memset(dbuf->buf + dbuf->size - DIRBLKSIZ, 0, DIRBLKSIZ); 1033 dbuf->cur = dbuf->size - DIRBLKSIZ; 1034 } else if (dp) { /* shrink end of previous */ 1035 dp->d_reclen = ufs_rw16(llen,needswap); 1036 dbuf->cur += llen; 1037 } 1038 dp = (struct direct *)(dbuf->buf + dbuf->cur); 1039 memcpy(dp, &de, reclen); 1040 dp->d_reclen = ufs_rw16(dbuf->size - dbuf->cur, needswap); 1041 } 1042 1043 /* 1044 * cribbed from sys/ufs/ffs/ffs_alloc.c 1045 */ 1046 static void 1047 ffs_write_inode(union dinode *dp, uint32_t ino, const fsinfo_t *fsopts) 1048 { 1049 char *buf; 1050 struct ufs1_dinode *dp1; 1051 struct ufs2_dinode *dp2, *dip; 1052 struct cg *cgp; 1053 struct fs *fs; 1054 int cg, cgino, i; 1055 daddr_t d; 1056 char sbbuf[FFS_MAXBSIZE]; 1057 uint32_t initediblk; 1058 ffs_opt_t *ffs_opts = fsopts->fs_specific; 1059 1060 assert (dp != NULL); 1061 assert (ino > 0); 1062 assert (fsopts != NULL); 1063 assert (ffs_opts != NULL); 1064 1065 fs = (struct fs *)fsopts->superblock; 1066 cg = ino_to_cg(fs, ino); 1067 cgino = ino % fs->fs_ipg; 1068 if (debug & DEBUG_FS_WRITE_INODE) 1069 printf("ffs_write_inode: din %p ino %u cg %d cgino %d\n", 1070 dp, ino, cg, cgino); 1071 1072 ffs_rdfs(fsbtodb(fs, cgtod(fs, cg)), (int)fs->fs_cgsize, &sbbuf, 1073 fsopts); 1074 cgp = (struct cg *)sbbuf; 1075 if (!cg_chkmagic(cgp, fsopts->needswap)) 1076 errx(1, "ffs_write_inode: cg %d: bad magic number", cg); 1077 1078 assert (isclr(cg_inosused(cgp, fsopts->needswap), cgino)); 1079 1080 buf = emalloc(fs->fs_bsize); 1081 dp1 = (struct ufs1_dinode *)buf; 1082 dp2 = (struct ufs2_dinode *)buf; 1083 1084 if (fs->fs_cstotal.cs_nifree == 0) 1085 errx(1, "ffs_write_inode: fs out of inodes for ino %u", 1086 ino); 1087 if (fs->fs_cs(fs, cg).cs_nifree == 0) 1088 errx(1, 1089 "ffs_write_inode: cg %d out of inodes for ino %u", 1090 cg, ino); 1091 setbit(cg_inosused(cgp, fsopts->needswap), cgino); 1092 ufs_add32(cgp->cg_cs.cs_nifree, -1, fsopts->needswap); 1093 fs->fs_cstotal.cs_nifree--; 1094 fs->fs_cs(fs, cg).cs_nifree--; 1095 if (S_ISDIR(DIP(dp, mode))) { 1096 ufs_add32(cgp->cg_cs.cs_ndir, 1, fsopts->needswap); 1097 fs->fs_cstotal.cs_ndir++; 1098 fs->fs_cs(fs, cg).cs_ndir++; 1099 } 1100 1101 /* 1102 * Initialize inode blocks on the fly for UFS2. 1103 */ 1104 initediblk = ufs_rw32(cgp->cg_initediblk, fsopts->needswap); 1105 if (ffs_opts->version == 2 && 1106 (uint32_t)(cgino + INOPB(fs)) > initediblk && 1107 initediblk < ufs_rw32(cgp->cg_niblk, fsopts->needswap)) { 1108 memset(buf, 0, fs->fs_bsize); 1109 dip = (struct ufs2_dinode *)buf; 1110 srandom(time(NULL)); 1111 for (i = 0; i < INOPB(fs); i++) { 1112 dip->di_gen = random() / 2 + 1; 1113 dip++; 1114 } 1115 ffs_wtfs(fsbtodb(fs, ino_to_fsba(fs, 1116 cg * fs->fs_ipg + initediblk)), 1117 fs->fs_bsize, buf, fsopts); 1118 initediblk += INOPB(fs); 1119 cgp->cg_initediblk = ufs_rw32(initediblk, fsopts->needswap); 1120 } 1121 1122 1123 ffs_wtfs(fsbtodb(fs, cgtod(fs, cg)), (int)fs->fs_cgsize, &sbbuf, 1124 fsopts); 1125 1126 /* now write inode */ 1127 d = fsbtodb(fs, ino_to_fsba(fs, ino)); 1128 ffs_rdfs(d, fs->fs_bsize, buf, fsopts); 1129 if (fsopts->needswap) { 1130 if (ffs_opts->version == 1) 1131 ffs_dinode1_swap(&dp->ffs1_din, 1132 &dp1[ino_to_fsbo(fs, ino)]); 1133 else 1134 ffs_dinode2_swap(&dp->ffs2_din, 1135 &dp2[ino_to_fsbo(fs, ino)]); 1136 } else { 1137 if (ffs_opts->version == 1) 1138 dp1[ino_to_fsbo(fs, ino)] = dp->ffs1_din; 1139 else 1140 dp2[ino_to_fsbo(fs, ino)] = dp->ffs2_din; 1141 } 1142 ffs_wtfs(d, fs->fs_bsize, buf, fsopts); 1143 free(buf); 1144 } 1145 1146 void 1147 panic(const char *fmt, ...) 1148 { 1149 va_list ap; 1150 1151 va_start(ap, fmt); 1152 vwarnx(fmt, ap); 1153 va_end(ap); 1154 exit(1); 1155 } 1156