dumplfs.c revision 1.8
1 /* $NetBSD: dumplfs.c,v 1.8 1998/03/01 02:26:12 fvdl Exp $ */ 2 3 /*- 4 * Copyright (c) 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 38 #ifndef lint 39 __COPYRIGHT( 40 "@(#) Copyright (c) 1991, 1993\n\ 41 The Regents of the University of California. All rights reserved.\n"); 42 #endif /* not lint */ 43 44 #ifndef lint 45 #if 0 46 static char sccsid[] = "@(#)dumplfs.c 8.5 (Berkeley) 5/24/95"; 47 #else 48 __RCSID("$NetBSD: dumplfs.c,v 1.8 1998/03/01 02:26:12 fvdl Exp $"); 49 #endif 50 #endif /* not lint */ 51 52 #include <sys/param.h> 53 #include <sys/ucred.h> 54 #include <sys/mount.h> 55 #include <sys/time.h> 56 57 #include <ufs/ufs/dinode.h> 58 #include <ufs/lfs/lfs.h> 59 60 #include <err.h> 61 #include <errno.h> 62 #include <fcntl.h> 63 #include <fstab.h> 64 #include <stdlib.h> 65 #include <stdio.h> 66 #include <string.h> 67 #include <unistd.h> 68 #include "extern.h" 69 70 static void addseg __P((char *)); 71 static void dump_cleaner_info __P((struct lfs *, void *)); 72 static void dump_dinode __P((struct dinode *)); 73 static void dump_ifile __P((int, struct lfs *, int)); 74 static int dump_ipage_ifile __P((int, IFILE *, int)); 75 static int dump_ipage_segusage __P((struct lfs *, int, IFILE *, int)); 76 static void dump_segment __P((int, int, daddr_t, struct lfs *, int)); 77 static int dump_sum __P((int, struct lfs *, SEGSUM *, int, daddr_t)); 78 static void dump_super __P((struct lfs *)); 79 static void usage __P((void)); 80 81 int main __P((int, char *[])); 82 83 extern u_long cksum __P((void *, size_t)); 84 85 typedef struct seglist SEGLIST; 86 struct seglist { 87 SEGLIST *next; 88 int num; 89 }; 90 SEGLIST *seglist; 91 92 int daddr_shift; 93 char *special; 94 95 /* Segment Usage formats */ 96 #define print_suheader \ 97 (void)printf("segnum\tflags\tnbytes\tninos\tnsums\tlastmod\n") 98 99 #define print_suentry(i, sp) \ 100 (void)printf("%d\t%c%c%c\t%d\t%d\t%d\t%s", i, \ 101 (((sp)->su_flags & SEGUSE_ACTIVE) ? 'A' : ' '), \ 102 (((sp)->su_flags & SEGUSE_DIRTY) ? 'D' : 'C'), \ 103 (((sp)->su_flags & SEGUSE_SUPERBLOCK) ? 'S' : ' '), \ 104 (sp)->su_nbytes, (sp)->su_ninos, (sp)->su_nsums, \ 105 ctime((time_t *)&(sp)->su_lastmod)) 106 107 /* Ifile formats */ 108 #define print_iheader \ 109 (void)printf("inum\tstatus\tversion\tdaddr\t\tfreeptr\n") 110 #define print_ientry(i, ip) \ 111 if (ip->if_daddr == LFS_UNUSED_DADDR) \ 112 (void)printf("%d\tFREE\t%d\t \t\t%d\n", \ 113 i, ip->if_version, ip->if_nextfree); \ 114 else \ 115 (void)printf("%d\tINUSE\t%d\t%8X \n", \ 116 i, ip->if_version, ip->if_daddr) 117 118 int 119 main(argc, argv) 120 int argc; 121 char *argv[]; 122 { 123 struct lfs lfs_sb1, lfs_sb2, *lfs_master; 124 daddr_t seg_addr; 125 int ch, do_allsb, do_ientries, fd, segnum; 126 127 do_allsb = 0; 128 do_ientries = 0; 129 while ((ch = getopt(argc, argv, "ais:")) != -1) 130 switch(ch) { 131 case 'a': /* Dump all superblocks */ 132 do_allsb = 1; 133 break; 134 case 'i': /* Dump ifile entries */ 135 do_ientries = 1; 136 break; 137 case 's': /* Dump out these segments */ 138 addseg(optarg); 139 break; 140 default: 141 usage(); 142 } 143 argc -= optind; 144 argv += optind; 145 146 if (argc != 1) 147 usage(); 148 149 special = argv[0]; 150 if ((fd = open(special, O_RDONLY, 0)) < 0) 151 err(1, "%s", special); 152 153 /* Read the first superblock */ 154 get(fd, LFS_LABELPAD, &lfs_sb1, sizeof(struct lfs)); 155 daddr_shift = lfs_sb1.lfs_bshift - lfs_sb1.lfs_fsbtodb; 156 157 /* 158 * Read the second superblock and figure out which check point is 159 * most up to date. 160 */ 161 get(fd, 162 lfs_sb1.lfs_sboffs[1] << daddr_shift, &lfs_sb2, sizeof(struct lfs)); 163 164 lfs_master = &lfs_sb1; 165 if (lfs_sb1.lfs_tstamp < lfs_sb2.lfs_tstamp) 166 lfs_master = &lfs_sb2; 167 168 (void)printf("Master Superblock:\n"); 169 dump_super(lfs_master); 170 171 dump_ifile(fd, lfs_master, do_ientries); 172 173 if (seglist != NULL) 174 for (; seglist != NULL; seglist = seglist->next) { 175 seg_addr = lfs_master->lfs_sboffs[0] + seglist->num * 176 (lfs_master->lfs_ssize << lfs_master->lfs_fsbtodb); 177 dump_segment(fd, 178 seglist->num, seg_addr, lfs_master, do_allsb); 179 } 180 else 181 for (segnum = 0, seg_addr = lfs_master->lfs_sboffs[0]; 182 segnum < lfs_master->lfs_nseg; segnum++, seg_addr += 183 lfs_master->lfs_ssize << lfs_master->lfs_fsbtodb) 184 dump_segment(fd, 185 segnum, seg_addr, lfs_master, do_allsb); 186 187 (void)close(fd); 188 exit(0); 189 } 190 191 /* 192 * We are reading all the blocks of an inode and dumping out the ifile table. 193 * This code could be tighter, but this is a first pass at getting the stuff 194 * printed out rather than making this code incredibly efficient. 195 */ 196 static void 197 dump_ifile(fd, lfsp, do_ientries) 198 int fd; 199 struct lfs *lfsp; 200 int do_ientries; 201 { 202 IFILE *ipage; 203 struct dinode *dip, *dpage; 204 daddr_t addr, *addrp, *dindir, *iaddrp, *indir; 205 int block_limit, i, inum, j, nblocks, psize; 206 207 psize = lfsp->lfs_bsize; 208 addr = lfsp->lfs_idaddr; 209 210 if (!(dpage = malloc(psize))) 211 err(1, "malloc"); 212 get(fd, addr << daddr_shift, dpage, psize); 213 214 for (dip = dpage + INOPB(lfsp) - 1; dip >= dpage; --dip) 215 if (dip->di_inumber == LFS_IFILE_INUM) 216 break; 217 218 if (dip < dpage) 219 errx(1, "unable to locate ifile inode"); 220 221 (void)printf("\nIFILE inode\n"); 222 dump_dinode(dip); 223 224 (void)printf("\nIFILE contents\n"); 225 nblocks = dip->di_size >> lfsp->lfs_bshift; 226 block_limit = MIN(nblocks, NDADDR); 227 228 /* Get the direct block */ 229 if ((ipage = malloc(psize)) == NULL) 230 err(1, "malloc"); 231 for (inum = 0, addrp = dip->di_db, i = 0; i < block_limit; 232 i++, addrp++) { 233 get(fd, *addrp << daddr_shift, ipage, psize); 234 if (i < lfsp->lfs_cleansz) { 235 dump_cleaner_info(lfsp, ipage); 236 print_suheader; 237 continue; 238 } 239 240 if (i < (lfsp->lfs_segtabsz + lfsp->lfs_cleansz)) { 241 inum = dump_ipage_segusage(lfsp, inum, ipage, 242 lfsp->lfs_sepb); 243 if (!inum) 244 if(!do_ientries) 245 goto e0; 246 else 247 print_iheader; 248 } else 249 inum = dump_ipage_ifile(inum, ipage, lfsp->lfs_ifpb); 250 251 } 252 253 if (nblocks <= NDADDR) 254 goto e0; 255 256 /* Dump out blocks off of single indirect block */ 257 if (!(indir = malloc(psize))) 258 err(1, "malloc"); 259 get(fd, dip->di_ib[0] << daddr_shift, indir, psize); 260 block_limit = MIN(i + lfsp->lfs_nindir, nblocks); 261 for (addrp = indir; i < block_limit; i++, addrp++) { 262 if (*addrp == LFS_UNUSED_DADDR) 263 break; 264 get(fd, *addrp << daddr_shift,ipage, psize); 265 if (i < lfsp->lfs_cleansz) { 266 dump_cleaner_info(lfsp, ipage); 267 continue; 268 } else 269 i -= lfsp->lfs_cleansz; 270 271 if (i < lfsp->lfs_segtabsz) { 272 inum = dump_ipage_segusage(lfsp, inum, ipage, 273 lfsp->lfs_sepb); 274 if (!inum) 275 if(!do_ientries) 276 goto e1; 277 else 278 print_iheader; 279 } else 280 inum = dump_ipage_ifile(inum, ipage, lfsp->lfs_ifpb); 281 } 282 283 if (nblocks <= lfsp->lfs_nindir * lfsp->lfs_ifpb) 284 goto e1; 285 286 /* Get the double indirect block */ 287 if (!(dindir = malloc(psize))) 288 err(1, "malloc"); 289 get(fd, dip->di_ib[1] << daddr_shift, dindir, psize); 290 for (iaddrp = dindir, j = 0; j < lfsp->lfs_nindir; j++, iaddrp++) { 291 if (*iaddrp == LFS_UNUSED_DADDR) 292 break; 293 get(fd, *iaddrp << daddr_shift, indir, psize); 294 block_limit = MIN(i + lfsp->lfs_nindir, nblocks); 295 for (addrp = indir; i < block_limit; i++, addrp++) { 296 if (*addrp == LFS_UNUSED_DADDR) 297 break; 298 get(fd, *addrp << daddr_shift, ipage, psize); 299 if (i < lfsp->lfs_cleansz) { 300 dump_cleaner_info(lfsp, ipage); 301 continue; 302 } else 303 i -= lfsp->lfs_cleansz; 304 305 if (i < lfsp->lfs_segtabsz) { 306 inum = dump_ipage_segusage(lfsp, 307 inum, ipage, lfsp->lfs_sepb); 308 if (!inum) 309 if(!do_ientries) 310 goto e2; 311 else 312 print_iheader; 313 } else 314 inum = dump_ipage_ifile(inum, 315 ipage, lfsp->lfs_ifpb); 316 } 317 } 318 e2: free(dindir); 319 e1: free(indir); 320 e0: free(dpage); 321 free(ipage); 322 } 323 324 static int 325 dump_ipage_ifile(i, pp, tot) 326 int i; 327 IFILE *pp; 328 int tot; 329 { 330 IFILE *ip; 331 int cnt, max; 332 333 max = i + tot; 334 335 for (ip = pp, cnt = i; cnt < max; cnt++, ip++) 336 print_ientry(cnt, ip); 337 return (max); 338 } 339 340 static int 341 dump_ipage_segusage(lfsp, i, pp, tot) 342 struct lfs *lfsp; 343 int i; 344 IFILE *pp; 345 int tot; 346 { 347 SEGUSE *sp; 348 int cnt, max; 349 350 max = i + tot; 351 for (sp = (SEGUSE *)pp, cnt = i; 352 cnt < lfsp->lfs_nseg && cnt < max; cnt++, sp++) 353 print_suentry(cnt, sp); 354 if (max >= lfsp->lfs_nseg) 355 return (0); 356 else 357 return (max); 358 } 359 360 static void 361 dump_dinode(dip) 362 struct dinode *dip; 363 { 364 int i; 365 time_t at, mt, ct; 366 367 at = dip->di_atime; 368 mt = dip->di_mtime; 369 ct = dip->di_ctime; 370 371 (void)printf("%s%d\t%s%d\t%s%d\t%s%d\t%s%qu\n", 372 "mode ", dip->di_mode, 373 "nlink ", dip->di_nlink, 374 "uid ", dip->di_uid, 375 "gid ", dip->di_gid, 376 "size ", dip->di_size); 377 (void)printf("%s%s%s%s%s%s", 378 "atime ", ctime(&at), 379 "mtime ", ctime(&mt), 380 "ctime ", ctime(&ct)); 381 (void)printf("inum %d\n", dip->di_inumber); 382 (void)printf("Direct Addresses\n"); 383 for (i = 0; i < NDADDR; i++) { 384 (void)printf("\t0x%X", dip->di_db[i]); 385 if ((i % 6) == 5) 386 (void)printf("\n"); 387 } 388 for (i = 0; i < NIADDR; i++) 389 (void)printf("\t0x%X", dip->di_ib[i]); 390 (void)printf("\n"); 391 } 392 393 static int 394 dump_sum(fd, lfsp, sp, segnum, addr) 395 struct lfs *lfsp; 396 SEGSUM *sp; 397 int fd, segnum; 398 daddr_t addr; 399 { 400 FINFO *fp; 401 daddr_t *dp; 402 int i, j; 403 int ck; 404 int numbytes; 405 struct dinode *inop; 406 407 if (sp->ss_magic != SS_MAGIC || 408 sp->ss_sumsum != (ck = cksum(&sp->ss_datasum, 409 LFS_SUMMARY_SIZE - sizeof(sp->ss_sumsum)))) { 410 (void)printf("dumplfs: %s %d address 0x%x\n", 411 "corrupt summary block; segment", segnum, addr); 412 return(0); 413 } 414 415 (void)printf("Segment Summary Info at 0x%x\n", addr); 416 (void)printf(" %s0x%X\t%s%d\t%s%d\n %s0x%X\t%s0x%X", 417 "next ", sp->ss_next, 418 "nfinfo ", sp->ss_nfinfo, 419 "ninos ", sp->ss_ninos, 420 "sumsum ", sp->ss_sumsum, 421 "datasum ", sp->ss_datasum ); 422 (void)printf("\tcreate %s", ctime((time_t *)&sp->ss_create)); 423 424 /* Dump out inode disk addresses */ 425 dp = (daddr_t *)sp; 426 dp += LFS_SUMMARY_SIZE / sizeof(daddr_t); 427 inop = malloc(1 << lfsp->lfs_bshift); 428 printf(" Inode addresses:"); 429 numbytes = 0; 430 for (dp--, i = 0; i < sp->ss_ninos; dp--) { 431 numbytes += lfsp->lfs_bsize; /* add bytes for inode block */ 432 printf("\t0x%X {", *dp); 433 get(fd, *dp << (lfsp->lfs_bshift - lfsp->lfs_fsbtodb), inop, 434 (1 << lfsp->lfs_bshift)); 435 for (j = 0; i < sp->ss_ninos && j < INOPB(lfsp); j++, i++) { 436 if (j > 0) 437 (void)printf(", "); 438 (void)printf("%d", inop[j].di_inumber); 439 } 440 (void)printf("}"); 441 if (((i/INOPB(lfsp)) % 4) == 3) 442 (void)printf("\n"); 443 } 444 free(inop); 445 446 printf("\n"); 447 for (fp = (FINFO *)(sp + 1), i = 0; i < sp->ss_nfinfo; i++) { 448 (void)printf(" FINFO for inode: %d version %d nblocks %d lastlength %d\n", 449 fp->fi_ino, fp->fi_version, fp->fi_nblocks, 450 fp->fi_lastlength); 451 dp = &(fp->fi_blocks[0]); 452 for (j = 0; j < fp->fi_nblocks; j++, dp++) { 453 (void)printf("\t%d", *dp); 454 if ((j % 8) == 7) 455 (void)printf("\n"); 456 if (j == fp->fi_nblocks - 1) 457 numbytes += fp->fi_lastlength; 458 else 459 numbytes += lfsp->lfs_bsize; 460 } 461 if ((j % 8) != 0) 462 (void)printf("\n"); 463 fp = (FINFO *)dp; 464 } 465 return (numbytes); 466 } 467 468 static void 469 dump_segment(fd, segnum, addr, lfsp, dump_sb) 470 int fd, segnum; 471 daddr_t addr; 472 struct lfs *lfsp; 473 int dump_sb; 474 { 475 struct lfs lfs_sb, *sbp; 476 SEGSUM *sump; 477 char sumblock[LFS_SUMMARY_SIZE]; 478 int did_one, nbytes, sb; 479 off_t sum_offset, super_off = 0; 480 481 (void)printf("\nSEGMENT %d (Disk Address 0x%X)\n", 482 addr >> (lfsp->lfs_segshift - daddr_shift), addr); 483 sum_offset = (addr << (lfsp->lfs_bshift - lfsp->lfs_fsbtodb)); 484 485 sb = 0; 486 did_one = 0; 487 do { 488 get(fd, sum_offset, sumblock, LFS_SUMMARY_SIZE); 489 sump = (SEGSUM *)sumblock; 490 if (sump->ss_sumsum != cksum (&sump->ss_datasum, 491 LFS_SUMMARY_SIZE - sizeof(sump->ss_sumsum))) { 492 sbp = (struct lfs *)sump; 493 if ((sb = (sbp->lfs_magic == LFS_MAGIC))) { 494 super_off = sum_offset; 495 sum_offset += LFS_SBPAD; 496 } else if (did_one) 497 break; 498 else { 499 printf("Segment at 0x%X corrupt\n", addr); 500 break; 501 } 502 } else { 503 nbytes = dump_sum(fd, lfsp, sump, segnum, sum_offset >> 504 (lfsp->lfs_bshift - lfsp->lfs_fsbtodb)); 505 if (nbytes) 506 sum_offset += LFS_SUMMARY_SIZE + nbytes; 507 else 508 sum_offset = 0; 509 did_one = 1; 510 } 511 } while (sum_offset); 512 513 if (dump_sb && sb) { 514 get(fd, super_off, &lfs_sb, sizeof(struct lfs)); 515 dump_super(&lfs_sb); 516 } 517 return; 518 } 519 520 static void 521 dump_super(lfsp) 522 struct lfs *lfsp; 523 { 524 int i; 525 526 (void)printf("%s0x%X\t%s0x%X\t%s%d\t%s%d\n", 527 "magic ", lfsp->lfs_magic, 528 "version ", lfsp->lfs_version, 529 "size ", lfsp->lfs_size, 530 "ssize ", lfsp->lfs_ssize); 531 (void)printf("%s%d\t\t%s%d\t%s%d\t%s%d\n", 532 "dsize ", lfsp->lfs_dsize, 533 "bsize ", lfsp->lfs_bsize, 534 "fsize ", lfsp->lfs_fsize, 535 "frag ", lfsp->lfs_frag); 536 537 (void)printf("%s%d\t\t%s%d\t%s%d\t%s%d\n", 538 "minfree ", lfsp->lfs_minfree, 539 "inopb ", lfsp->lfs_inopb, 540 "ifpb ", lfsp->lfs_ifpb, 541 "nindir ", lfsp->lfs_nindir); 542 543 (void)printf("%s%d\t\t%s%d\t%s%d\t%s%d\n", 544 "nseg ", lfsp->lfs_nseg, 545 "nspf ", lfsp->lfs_nspf, 546 "cleansz ", lfsp->lfs_cleansz, 547 "segtabsz ", lfsp->lfs_segtabsz); 548 549 (void)printf("%s0x%X\t%s%d\t%s0x%qX\t%s%d\n", 550 "segmask ", lfsp->lfs_segmask, 551 "segshift ", lfsp->lfs_segshift, 552 "bmask ", lfsp->lfs_bmask, 553 "bshift ", lfsp->lfs_bshift); 554 555 (void)printf("%s0x%qX\t\t%s%d\t%s0x%qX\t%s%u\n", 556 "ffmask ", lfsp->lfs_ffmask, 557 "ffshift ", lfsp->lfs_ffshift, 558 "fbmask ", lfsp->lfs_fbmask, 559 "fbshift ", lfsp->lfs_fbshift); 560 561 (void)printf("%s%d\t%s%d\t%s0x%X\t%s0x%qx\n", 562 "sushift ", lfsp->lfs_sushift, 563 "fsbtodb ", lfsp->lfs_fsbtodb, 564 "cksum ", lfsp->lfs_cksum, 565 "maxfilesize ", lfsp->lfs_maxfilesize); 566 567 (void)printf("Superblock disk addresses:\t"); 568 for (i = 0; i < LFS_MAXNUMSB; i++) { 569 (void)printf(" 0x%X", lfsp->lfs_sboffs[i]); 570 if ( i == (LFS_MAXNUMSB >> 1)) 571 (void)printf("\n\t\t\t\t"); 572 } 573 (void)printf("\n"); 574 575 (void)printf("Checkpoint Info\n"); 576 (void)printf("%s%d\t%s0x%X\t%s%d\n", 577 "free ", lfsp->lfs_free, 578 "idaddr ", lfsp->lfs_idaddr, 579 "ifile ", lfsp->lfs_ifile); 580 (void)printf("%s%d\t%s%d\t%s%d\n", 581 "bfree ", lfsp->lfs_bfree, 582 "avail ", lfsp->lfs_avail, 583 "uinodes ", lfsp->lfs_uinodes); 584 (void)printf("%s%d\t%s0x%X\t%s0x%X\n%s0x%X\t%s0x%X\t", 585 "nfiles ", lfsp->lfs_nfiles, 586 "lastseg ", lfsp->lfs_lastseg, 587 "nextseg ", lfsp->lfs_nextseg, 588 "curseg ", lfsp->lfs_curseg, 589 "offset ", lfsp->lfs_offset); 590 (void)printf("tstamp %s", ctime((time_t *)&lfsp->lfs_tstamp)); 591 (void)printf("\nIn-Memory Information\n"); 592 (void)printf("%s%d\t%s0x%X\t%s%d%s%d\t%s%d\n", 593 "seglock ", lfsp->lfs_seglock, 594 "iocount ", lfsp->lfs_iocount, 595 "writer ", lfsp->lfs_writer, 596 "dirops ", lfsp->lfs_dirops, 597 "doifile ", lfsp->lfs_doifile); 598 (void)printf("%s%d\t%s%d\t%s0x%X\t%s%d\n", 599 "nactive ", lfsp->lfs_nactive, 600 "fmod ", lfsp->lfs_fmod, 601 "clean ", lfsp->lfs_clean, 602 "ronly ", lfsp->lfs_ronly); 603 } 604 605 static void 606 addseg(arg) 607 char *arg; 608 { 609 SEGLIST *p; 610 611 if ((p = malloc(sizeof(SEGLIST))) == NULL) 612 err(1, "malloc"); 613 p->next = seglist; 614 p->num = atoi(arg); 615 seglist = p; 616 } 617 618 static void 619 dump_cleaner_info(lfsp, ipage) 620 struct lfs *lfsp; 621 void *ipage; 622 { 623 CLEANERINFO *cip; 624 625 cip = (CLEANERINFO *)ipage; 626 (void)printf("segments clean\t%d\tsegments dirty\t%d\n\n", 627 cip->clean, cip->dirty); 628 } 629 630 static void 631 usage() 632 { 633 (void)fprintf(stderr, "usage: dumplfs [-ai] [-s segnum] file\n"); 634 exit(1); 635 } 636
Indexes created Thu Sep 25 16:09:42 GMT 2025