1 /* $NetBSD: fsdb.c,v 1.2 1995/10/08 23:18:10 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1995 John T. Kohl 5 * 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. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 21 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 22 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 26 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 27 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef lint 32 static const char rcsid[] = 33 "$FreeBSD$"; 34 #endif /* not lint */ 35 36 #include <sys/param.h> 37 #include <sys/time.h> 38 #include <ctype.h> 39 #include <err.h> 40 #include <grp.h> 41 #include <histedit.h> 42 #include <pwd.h> 43 #include <string.h> 44 #include <timeconv.h> 45 46 #include <ufs/ufs/dinode.h> 47 #include <ufs/ufs/dir.h> 48 #include <ufs/ffs/fs.h> 49 50 #include "fsdb.h" 51 #include "fsck.h" 52 53 static void usage(void) __dead2; 54 int cmdloop(void); 55 56 static void 57 usage(void) 58 { 59 fprintf(stderr, "usage: fsdb [-d] [-f] [-r] fsname\n"); 60 exit(1); 61 } 62 63 int returntosingle; 64 char nflag; 65 66 /* 67 * We suck in lots of fsck code, and just pick & choose the stuff we want. 68 * 69 * fsreadfd is set up to read from the file system, fswritefd to write to 70 * the file system. 71 */ 72 int 73 main(int argc, char *argv[]) 74 { 75 int ch, rval; 76 char *fsys = NULL; 77 78 while (-1 != (ch = getopt(argc, argv, "fdr"))) { 79 switch (ch) { 80 case 'f': 81 /* The -f option is left for historical 82 * reasons and has no meaning. 83 */ 84 break; 85 case 'd': 86 debug++; 87 break; 88 case 'r': 89 nflag++; /* "no" in fsck, readonly for us */ 90 break; 91 default: 92 usage(); 93 } 94 } 95 argc -= optind; 96 argv += optind; 97 if (argc != 1) 98 usage(); 99 else 100 fsys = argv[0]; 101 102 sblock_init(); 103 if (!setup(fsys)) 104 errx(1, "cannot set up file system `%s'", fsys); 105 printf("%s file system `%s'\nLast Mounted on %s\n", 106 nflag? "Examining": "Editing", fsys, sblock.fs_fsmnt); 107 rval = cmdloop(); 108 if (!nflag) { 109 sblock.fs_clean = 0; /* mark it dirty */ 110 sbdirty(); 111 ckfini(0); 112 printf("*** FILE SYSTEM MARKED DIRTY\n"); 113 printf("*** BE SURE TO RUN FSCK TO CLEAN UP ANY DAMAGE\n"); 114 printf("*** IF IT WAS MOUNTED, RE-MOUNT WITH -u -o reload\n"); 115 } 116 exit(rval); 117 } 118 119 #define CMDFUNC(func) int func(int argc, char *argv[]) 120 #define CMDFUNCSTART(func) int func(int argc, char *argv[]) 121 122 CMDFUNC(helpfn); 123 CMDFUNC(focus); /* focus on inode */ 124 CMDFUNC(active); /* print active inode */ 125 CMDFUNC(blocks); /* print blocks for active inode */ 126 CMDFUNC(focusname); /* focus by name */ 127 CMDFUNC(zapi); /* clear inode */ 128 CMDFUNC(uplink); /* incr link */ 129 CMDFUNC(downlink); /* decr link */ 130 CMDFUNC(linkcount); /* set link count */ 131 CMDFUNC(quit); /* quit */ 132 CMDFUNC(ls); /* list directory */ 133 CMDFUNC(rm); /* remove name */ 134 CMDFUNC(ln); /* add name */ 135 CMDFUNC(newtype); /* change type */ 136 CMDFUNC(chmode); /* change mode */ 137 CMDFUNC(chlen); /* change length */ 138 CMDFUNC(chaflags); /* change flags */ 139 CMDFUNC(chgen); /* change generation */ 140 CMDFUNC(chowner); /* change owner */ 141 CMDFUNC(chgroup); /* Change group */ 142 CMDFUNC(back); /* pop back to last ino */ 143 CMDFUNC(chmtime); /* Change mtime */ 144 CMDFUNC(chctime); /* Change ctime */ 145 CMDFUNC(chatime); /* Change atime */ 146 CMDFUNC(chinum); /* Change inode # of dirent */ 147 CMDFUNC(chname); /* Change dirname of dirent */ 148 149 struct cmdtable cmds[] = { 150 { "help", "Print out help", 1, 1, FL_RO, helpfn }, 151 { "?", "Print out help", 1, 1, FL_RO, helpfn }, 152 { "inode", "Set active inode to INUM", 2, 2, FL_RO, focus }, 153 { "clri", "Clear inode INUM", 2, 2, FL_WR, zapi }, 154 { "lookup", "Set active inode by looking up NAME", 2, 2, FL_RO, focusname }, 155 { "cd", "Set active inode by looking up NAME", 2, 2, FL_RO, focusname }, 156 { "back", "Go to previous active inode", 1, 1, FL_RO, back }, 157 { "active", "Print active inode", 1, 1, FL_RO, active }, 158 { "print", "Print active inode", 1, 1, FL_RO, active }, 159 { "blocks", "Print block numbers of active inode", 1, 1, FL_RO, blocks }, 160 { "uplink", "Increment link count", 1, 1, FL_WR, uplink }, 161 { "downlink", "Decrement link count", 1, 1, FL_WR, downlink }, 162 { "linkcount", "Set link count to COUNT", 2, 2, FL_WR, linkcount }, 163 { "ls", "List current inode as directory", 1, 1, FL_RO, ls }, 164 { "rm", "Remove NAME from current inode directory", 2, 2, FL_WR, rm }, 165 { "del", "Remove NAME from current inode directory", 2, 2, FL_WR, rm }, 166 { "ln", "Hardlink INO into current inode directory as NAME", 3, 3, FL_WR, ln }, 167 { "chinum", "Change dir entry number INDEX to INUM", 3, 3, FL_WR, chinum }, 168 { "chname", "Change dir entry number INDEX to NAME", 3, 3, FL_WR, chname }, 169 { "chtype", "Change type of current inode to TYPE", 2, 2, FL_WR, newtype }, 170 { "chmod", "Change mode of current inode to MODE", 2, 2, FL_WR, chmode }, 171 { "chlen", "Change length of current inode to LENGTH", 2, 2, FL_WR, chlen }, 172 { "chown", "Change owner of current inode to OWNER", 2, 2, FL_WR, chowner }, 173 { "chgrp", "Change group of current inode to GROUP", 2, 2, FL_WR, chgroup }, 174 { "chflags", "Change flags of current inode to FLAGS", 2, 2, FL_WR, chaflags }, 175 { "chgen", "Change generation number of current inode to GEN", 2, 2, FL_WR, chgen }, 176 { "mtime", "Change mtime of current inode to MTIME", 2, 2, FL_WR, chmtime }, 177 { "ctime", "Change ctime of current inode to CTIME", 2, 2, FL_WR, chctime }, 178 { "atime", "Change atime of current inode to ATIME", 2, 2, FL_WR, chatime }, 179 { "quit", "Exit", 1, 1, FL_RO, quit }, 180 { "q", "Exit", 1, 1, FL_RO, quit }, 181 { "exit", "Exit", 1, 1, FL_RO, quit }, 182 { NULL, 0, 0, 0, 0, NULL }, 183 }; 184 185 int 186 helpfn(int argc, char *argv[]) 187 { 188 struct cmdtable *cmdtp; 189 190 printf("Commands are:\n%-10s %5s %5s %s\n", 191 "command", "min argc", "max argc", "what"); 192 193 for (cmdtp = cmds; cmdtp->cmd; cmdtp++) 194 printf("%-10s %5u %5u %s\n", 195 cmdtp->cmd, cmdtp->minargc, cmdtp->maxargc, cmdtp->helptxt); 196 return 0; 197 } 198 199 char * 200 prompt(EditLine *el) 201 { 202 static char pstring[64]; 203 snprintf(pstring, sizeof(pstring), "fsdb (inum: %d)> ", curinum); 204 return pstring; 205 } 206 207 208 int 209 cmdloop(void) 210 { 211 char *line; 212 const char *elline; 213 int cmd_argc, rval = 0, known; 214 #define scratch known 215 char **cmd_argv; 216 struct cmdtable *cmdp; 217 History *hist; 218 EditLine *elptr; 219 HistEvent he; 220 221 curinode = ginode(ROOTINO); 222 curinum = ROOTINO; 223 printactive(0); 224 225 hist = history_init(); 226 history(hist, &he, H_EVENT, 100); /* 100 elt history buffer */ 227 228 elptr = el_init("fsdb", stdin, stdout, stderr); 229 el_set(elptr, EL_EDITOR, "emacs"); 230 el_set(elptr, EL_PROMPT, prompt); 231 el_set(elptr, EL_HIST, history, hist); 232 el_source(elptr, NULL); 233 234 while ((elline = el_gets(elptr, &scratch)) != NULL && scratch != 0) { 235 if (debug) 236 printf("command `%s'\n", elline); 237 238 history(hist, &he, H_ENTER, elline); 239 240 line = strdup(elline); 241 cmd_argv = crack(line, &cmd_argc); 242 /* 243 * el_parse returns -1 to signal that it's not been handled 244 * internally. 245 */ 246 if (el_parse(elptr, cmd_argc, cmd_argv) != -1) 247 continue; 248 if (cmd_argc) { 249 known = 0; 250 for (cmdp = cmds; cmdp->cmd; cmdp++) { 251 if (!strcmp(cmdp->cmd, cmd_argv[0])) { 252 if ((cmdp->flags & FL_WR) == FL_WR && nflag) 253 warnx("`%s' requires write access", cmd_argv[0]), 254 rval = 1; 255 else if (cmd_argc >= cmdp->minargc && 256 cmd_argc <= cmdp->maxargc) 257 rval = (*cmdp->handler)(cmd_argc, cmd_argv); 258 else if (cmd_argc >= cmdp->minargc) { 259 strcpy(line, elline); 260 cmd_argv = recrack(line, &cmd_argc, cmdp->maxargc); 261 rval = (*cmdp->handler)(cmd_argc, cmd_argv); 262 } else 263 rval = argcount(cmdp, cmd_argc, cmd_argv); 264 known = 1; 265 break; 266 } 267 } 268 if (!known) 269 warnx("unknown command `%s'", cmd_argv[0]), rval = 1; 270 } else 271 rval = 0; 272 free(line); 273 if (rval < 0) 274 /* user typed "quit" */ 275 return 0; 276 if (rval) 277 warnx("rval was %d", rval); 278 } 279 el_end(elptr); 280 history_end(hist); 281 return rval; 282 } 283 284 union dinode *curinode; 285 ino_t curinum, ocurrent; 286 287 #define GETINUM(ac,inum) inum = strtoul(argv[ac], &cp, 0); \ 288 if (inum < ROOTINO || inum > maxino || cp == argv[ac] || *cp != '\0' ) { \ 289 printf("inode %d out of range; range is [%d,%d]\n", \ 290 inum, ROOTINO, maxino); \ 291 return 1; \ 292 } 293 294 /* 295 * Focus on given inode number 296 */ 297 CMDFUNCSTART(focus) 298 { 299 ino_t inum; 300 char *cp; 301 302 GETINUM(1,inum); 303 curinode = ginode(inum); 304 ocurrent = curinum; 305 curinum = inum; 306 printactive(0); 307 return 0; 308 } 309 310 CMDFUNCSTART(back) 311 { 312 curinum = ocurrent; 313 curinode = ginode(curinum); 314 printactive(0); 315 return 0; 316 } 317 318 CMDFUNCSTART(zapi) 319 { 320 ino_t inum; 321 union dinode *dp; 322 char *cp; 323 324 GETINUM(1,inum); 325 dp = ginode(inum); 326 clearinode(dp); 327 inodirty(); 328 if (curinode) /* re-set after potential change */ 329 curinode = ginode(curinum); 330 return 0; 331 } 332 333 CMDFUNCSTART(active) 334 { 335 printactive(0); 336 return 0; 337 } 338 339 CMDFUNCSTART(blocks) 340 { 341 printactive(1); 342 return 0; 343 } 344 345 CMDFUNCSTART(quit) 346 { 347 return -1; 348 } 349 350 CMDFUNCSTART(uplink) 351 { 352 if (!checkactive()) 353 return 1; 354 DIP_SET(curinode, di_nlink, DIP(curinode, di_nlink) + 1); 355 printf("inode %d link count now %d\n", curinum, DIP(curinode, di_nlink)); 356 inodirty(); 357 return 0; 358 } 359 360 CMDFUNCSTART(downlink) 361 { 362 if (!checkactive()) 363 return 1; 364 DIP_SET(curinode, di_nlink, DIP(curinode, di_nlink) - 1); 365 printf("inode %d link count now %d\n", curinum, DIP(curinode, di_nlink)); 366 inodirty(); 367 return 0; 368 } 369 370 const char *typename[] = { 371 "unknown", 372 "fifo", 373 "char special", 374 "unregistered #3", 375 "directory", 376 "unregistered #5", 377 "blk special", 378 "unregistered #7", 379 "regular", 380 "unregistered #9", 381 "symlink", 382 "unregistered #11", 383 "socket", 384 "unregistered #13", 385 "whiteout", 386 }; 387 388 int slot; 389 390 int 391 scannames(struct inodesc *idesc) 392 { 393 struct direct *dirp = idesc->id_dirp; 394 395 printf("slot %d ino %d reclen %d: %s, `%.*s'\n", 396 slot++, dirp->d_ino, dirp->d_reclen, typename[dirp->d_type], 397 dirp->d_namlen, dirp->d_name); 398 return (KEEPON); 399 } 400 401 CMDFUNCSTART(ls) 402 { 403 struct inodesc idesc; 404 checkactivedir(); /* let it go on anyway */ 405 406 slot = 0; 407 idesc.id_number = curinum; 408 idesc.id_func = scannames; 409 idesc.id_type = DATA; 410 idesc.id_fix = IGNORE; 411 ckinode(curinode, &idesc); 412 curinode = ginode(curinum); 413 414 return 0; 415 } 416 417 int findino(struct inodesc *idesc); /* from fsck */ 418 static int dolookup(char *name); 419 420 static int 421 dolookup(char *name) 422 { 423 struct inodesc idesc; 424 425 if (!checkactivedir()) 426 return 0; 427 idesc.id_number = curinum; 428 idesc.id_func = findino; 429 idesc.id_name = name; 430 idesc.id_type = DATA; 431 idesc.id_fix = IGNORE; 432 if (ckinode(curinode, &idesc) & FOUND) { 433 curinum = idesc.id_parent; 434 curinode = ginode(curinum); 435 printactive(0); 436 return 1; 437 } else { 438 warnx("name `%s' not found in current inode directory", name); 439 return 0; 440 } 441 } 442 443 CMDFUNCSTART(focusname) 444 { 445 char *p, *val; 446 447 if (!checkactive()) 448 return 1; 449 450 ocurrent = curinum; 451 452 if (argv[1][0] == '/') { 453 curinum = ROOTINO; 454 curinode = ginode(ROOTINO); 455 } else { 456 if (!checkactivedir()) 457 return 1; 458 } 459 for (p = argv[1]; p != NULL;) { 460 while ((val = strsep(&p, "/")) != NULL && *val == '\0'); 461 if (val) { 462 printf("component `%s': ", val); 463 fflush(stdout); 464 if (!dolookup(val)) { 465 curinode = ginode(curinum); 466 return(1); 467 } 468 } 469 } 470 return 0; 471 } 472 473 CMDFUNCSTART(ln) 474 { 475 ino_t inum; 476 int rval; 477 char *cp; 478 479 GETINUM(1,inum); 480 481 if (!checkactivedir()) 482 return 1; 483 rval = makeentry(curinum, inum, argv[2]); 484 if (rval) 485 printf("Ino %d entered as `%s'\n", inum, argv[2]); 486 else 487 printf("could not enter name? weird.\n"); 488 curinode = ginode(curinum); 489 return rval; 490 } 491 492 CMDFUNCSTART(rm) 493 { 494 int rval; 495 496 if (!checkactivedir()) 497 return 1; 498 rval = changeino(curinum, argv[1], 0); 499 if (rval & ALTERED) { 500 printf("Name `%s' removed\n", argv[1]); 501 return 0; 502 } else { 503 printf("could not remove name ('%s')? weird.\n", argv[1]); 504 return 1; 505 } 506 } 507 508 long slotcount, desired; 509 510 int 511 chinumfunc(struct inodesc *idesc) 512 { 513 struct direct *dirp = idesc->id_dirp; 514 515 if (slotcount++ == desired) { 516 dirp->d_ino = idesc->id_parent; 517 return STOP|ALTERED|FOUND; 518 } 519 return KEEPON; 520 } 521 522 CMDFUNCSTART(chinum) 523 { 524 char *cp; 525 ino_t inum; 526 struct inodesc idesc; 527 528 slotcount = 0; 529 if (!checkactivedir()) 530 return 1; 531 GETINUM(2,inum); 532 533 desired = strtol(argv[1], &cp, 0); 534 if (cp == argv[1] || *cp != '\0' || desired < 0) { 535 printf("invalid slot number `%s'\n", argv[1]); 536 return 1; 537 } 538 539 idesc.id_number = curinum; 540 idesc.id_func = chinumfunc; 541 idesc.id_fix = IGNORE; 542 idesc.id_type = DATA; 543 idesc.id_parent = inum; /* XXX convenient hiding place */ 544 545 if (ckinode(curinode, &idesc) & FOUND) 546 return 0; 547 else { 548 warnx("no %sth slot in current directory", argv[1]); 549 return 1; 550 } 551 } 552 553 int 554 chnamefunc(struct inodesc *idesc) 555 { 556 struct direct *dirp = idesc->id_dirp; 557 struct direct testdir; 558 559 if (slotcount++ == desired) { 560 /* will name fit? */ 561 testdir.d_namlen = strlen(idesc->id_name); 562 if (DIRSIZ(NEWDIRFMT, &testdir) <= dirp->d_reclen) { 563 dirp->d_namlen = testdir.d_namlen; 564 strcpy(dirp->d_name, idesc->id_name); 565 return STOP|ALTERED|FOUND; 566 } else 567 return STOP|FOUND; /* won't fit, so give up */ 568 } 569 return KEEPON; 570 } 571 572 CMDFUNCSTART(chname) 573 { 574 int rval; 575 char *cp; 576 struct inodesc idesc; 577 578 slotcount = 0; 579 if (!checkactivedir()) 580 return 1; 581 582 desired = strtoul(argv[1], &cp, 0); 583 if (cp == argv[1] || *cp != '\0') { 584 printf("invalid slot number `%s'\n", argv[1]); 585 return 1; 586 } 587 588 idesc.id_number = curinum; 589 idesc.id_func = chnamefunc; 590 idesc.id_fix = IGNORE; 591 idesc.id_type = DATA; 592 idesc.id_name = argv[2]; 593 594 rval = ckinode(curinode, &idesc); 595 if ((rval & (FOUND|ALTERED)) == (FOUND|ALTERED)) 596 return 0; 597 else if (rval & FOUND) { 598 warnx("new name `%s' does not fit in slot %s\n", argv[2], argv[1]); 599 return 1; 600 } else { 601 warnx("no %sth slot in current directory", argv[1]); 602 return 1; 603 } 604 } 605 606 struct typemap { 607 const char *typename; 608 int typebits; 609 } typenamemap[] = { 610 {"file", IFREG}, 611 {"dir", IFDIR}, 612 {"socket", IFSOCK}, 613 {"fifo", IFIFO}, 614 }; 615 616 CMDFUNCSTART(newtype) 617 { 618 int type; 619 struct typemap *tp; 620 621 if (!checkactive()) 622 return 1; 623 type = DIP(curinode, di_mode) & IFMT; 624 for (tp = typenamemap; 625 tp < &typenamemap[sizeof(typenamemap)/sizeof(*typenamemap)]; 626 tp++) { 627 if (!strcmp(argv[1], tp->typename)) { 628 printf("setting type to %s\n", tp->typename); 629 type = tp->typebits; 630 break; 631 } 632 } 633 if (tp == &typenamemap[sizeof(typenamemap)/sizeof(*typenamemap)]) { 634 warnx("type `%s' not known", argv[1]); 635 warnx("try one of `file', `dir', `socket', `fifo'"); 636 return 1; 637 } 638 DIP_SET(curinode, di_mode, DIP(curinode, di_mode) & ~IFMT); 639 DIP_SET(curinode, di_mode, DIP(curinode, di_mode) | type); 640 inodirty(); 641 printactive(0); 642 return 0; 643 } 644 645 CMDFUNCSTART(chlen) 646 { 647 int rval = 1; 648 long len; 649 char *cp; 650 651 if (!checkactive()) 652 return 1; 653 654 len = strtol(argv[1], &cp, 0); 655 if (cp == argv[1] || *cp != '\0' || len < 0) { 656 warnx("bad length `%s'", argv[1]); 657 return 1; 658 } 659 660 DIP_SET(curinode, di_size, len); 661 inodirty(); 662 printactive(0); 663 return rval; 664 } 665 666 CMDFUNCSTART(chmode) 667 { 668 int rval = 1; 669 long modebits; 670 char *cp; 671 672 if (!checkactive()) 673 return 1; 674 675 modebits = strtol(argv[1], &cp, 8); 676 if (cp == argv[1] || *cp != '\0' || (modebits & ~07777)) { 677 warnx("bad modebits `%s'", argv[1]); 678 return 1; 679 } 680 681 DIP_SET(curinode, di_mode, DIP(curinode, di_mode) & ~07777); 682 DIP_SET(curinode, di_mode, DIP(curinode, di_mode) | modebits); 683 inodirty(); 684 printactive(0); 685 return rval; 686 } 687 688 CMDFUNCSTART(chaflags) 689 { 690 int rval = 1; 691 u_long flags; 692 char *cp; 693 694 if (!checkactive()) 695 return 1; 696 697 flags = strtoul(argv[1], &cp, 0); 698 if (cp == argv[1] || *cp != '\0' ) { 699 warnx("bad flags `%s'", argv[1]); 700 return 1; 701 } 702 703 if (flags > UINT_MAX) { 704 warnx("flags set beyond 32-bit range of field (%lx)\n", flags); 705 return(1); 706 } 707 DIP_SET(curinode, di_flags, flags); 708 inodirty(); 709 printactive(0); 710 return rval; 711 } 712 713 CMDFUNCSTART(chgen) 714 { 715 int rval = 1; 716 long gen; 717 char *cp; 718 719 if (!checkactive()) 720 return 1; 721 722 gen = strtol(argv[1], &cp, 0); 723 if (cp == argv[1] || *cp != '\0' ) { 724 warnx("bad gen `%s'", argv[1]); 725 return 1; 726 } 727 728 if (gen > INT_MAX || gen < INT_MIN) { 729 warnx("gen set beyond 32-bit range of field (%lx)\n", gen); 730 return(1); 731 } 732 DIP_SET(curinode, di_gen, gen); 733 inodirty(); 734 printactive(0); 735 return rval; 736 } 737 738 CMDFUNCSTART(linkcount) 739 { 740 int rval = 1; 741 int lcnt; 742 char *cp; 743 744 if (!checkactive()) 745 return 1; 746 747 lcnt = strtol(argv[1], &cp, 0); 748 if (cp == argv[1] || *cp != '\0' ) { 749 warnx("bad link count `%s'", argv[1]); 750 return 1; 751 } 752 if (lcnt > USHRT_MAX || lcnt < 0) { 753 warnx("max link count is %d\n", USHRT_MAX); 754 return 1; 755 } 756 757 DIP_SET(curinode, di_nlink, lcnt); 758 inodirty(); 759 printactive(0); 760 return rval; 761 } 762 763 CMDFUNCSTART(chowner) 764 { 765 int rval = 1; 766 unsigned long uid; 767 char *cp; 768 struct passwd *pwd; 769 770 if (!checkactive()) 771 return 1; 772 773 uid = strtoul(argv[1], &cp, 0); 774 if (cp == argv[1] || *cp != '\0' ) { 775 /* try looking up name */ 776 if ((pwd = getpwnam(argv[1]))) { 777 uid = pwd->pw_uid; 778 } else { 779 warnx("bad uid `%s'", argv[1]); 780 return 1; 781 } 782 } 783 784 DIP_SET(curinode, di_uid, uid); 785 inodirty(); 786 printactive(0); 787 return rval; 788 } 789 790 CMDFUNCSTART(chgroup) 791 { 792 int rval = 1; 793 unsigned long gid; 794 char *cp; 795 struct group *grp; 796 797 if (!checkactive()) 798 return 1; 799 800 gid = strtoul(argv[1], &cp, 0); 801 if (cp == argv[1] || *cp != '\0' ) { 802 if ((grp = getgrnam(argv[1]))) { 803 gid = grp->gr_gid; 804 } else { 805 warnx("bad gid `%s'", argv[1]); 806 return 1; 807 } 808 } 809 810 DIP_SET(curinode, di_gid, gid); 811 inodirty(); 812 printactive(0); 813 return rval; 814 } 815 816 int 817 dotime(char *name, time_t *secp, int32_t *nsecp) 818 { 819 char *p, *val; 820 struct tm t; 821 int32_t nsec; 822 p = strchr(name, '.'); 823 if (p) { 824 *p = '\0'; 825 nsec = strtoul(++p, &val, 0); 826 if (val == p || *val != '\0' || nsec >= 1000000000 || nsec < 0) { 827 warnx("invalid nanoseconds"); 828 goto badformat; 829 } 830 } else 831 nsec = 0; 832 if (strlen(name) != 14) { 833 badformat: 834 warnx("date format: YYYYMMDDHHMMSS[.nsec]"); 835 return 1; 836 } 837 *nsecp = nsec; 838 839 for (p = name; *p; p++) 840 if (*p < '0' || *p > '9') 841 goto badformat; 842 843 p = name; 844 #define VAL() ((*p++) - '0') 845 t.tm_year = VAL(); 846 t.tm_year = VAL() + t.tm_year * 10; 847 t.tm_year = VAL() + t.tm_year * 10; 848 t.tm_year = VAL() + t.tm_year * 10 - 1900; 849 t.tm_mon = VAL(); 850 t.tm_mon = VAL() + t.tm_mon * 10 - 1; 851 t.tm_mday = VAL(); 852 t.tm_mday = VAL() + t.tm_mday * 10; 853 t.tm_hour = VAL(); 854 t.tm_hour = VAL() + t.tm_hour * 10; 855 t.tm_min = VAL(); 856 t.tm_min = VAL() + t.tm_min * 10; 857 t.tm_sec = VAL(); 858 t.tm_sec = VAL() + t.tm_sec * 10; 859 t.tm_isdst = -1; 860 861 *secp = mktime(&t); 862 if (*secp == -1) { 863 warnx("date/time out of range"); 864 return 1; 865 } 866 return 0; 867 } 868 869 CMDFUNCSTART(chmtime) 870 { 871 time_t secs; 872 int32_t nsecs; 873 874 if (dotime(argv[1], &secs, &nsecs)) 875 return 1; 876 if (sblock.fs_magic == FS_UFS1_MAGIC) 877 curinode->dp1.di_mtime = _time_to_time32(secs); 878 else 879 curinode->dp2.di_mtime = _time_to_time64(secs); 880 DIP_SET(curinode, di_mtimensec, nsecs); 881 inodirty(); 882 printactive(0); 883 return 0; 884 } 885 886 CMDFUNCSTART(chatime) 887 { 888 time_t secs; 889 int32_t nsecs; 890 891 if (dotime(argv[1], &secs, &nsecs)) 892 return 1; 893 if (sblock.fs_magic == FS_UFS1_MAGIC) 894 curinode->dp1.di_atime = _time_to_time32(secs); 895 else 896 curinode->dp2.di_atime = _time_to_time64(secs); 897 DIP_SET(curinode, di_atimensec, nsecs); 898 inodirty(); 899 printactive(0); 900 return 0; 901 } 902 903 CMDFUNCSTART(chctime) 904 { 905 time_t secs; 906 int32_t nsecs; 907 908 if (dotime(argv[1], &secs, &nsecs)) 909 return 1; 910 if (sblock.fs_magic == FS_UFS1_MAGIC) 911 curinode->dp1.di_ctime = _time_to_time32(secs); 912 else 913 curinode->dp2.di_ctime = _time_to_time64(secs); 914 DIP_SET(curinode, di_ctimensec, nsecs); 915 inodirty(); 916 printactive(0); 917 return 0; 918 } 919