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