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 * $FreeBSD: src/sbin/fsdb/fsdb.c,v 1.13.2.3 2002/03/20 13:39:02 joerg Exp $ 31 * $DragonFly: src/sbin/fsdb/fsdb.c,v 1.3 2003/08/08 04:18:38 dillon Exp $ 32 */ 33 34 #include <sys/param.h> 35 #include <sys/time.h> 36 #include <ctype.h> 37 #include <err.h> 38 #include <grp.h> 39 #include <histedit.h> 40 #include <pwd.h> 41 #include <string.h> 42 43 #include <vfs/ufs/dinode.h> 44 #include <vfs/ufs/dir.h> 45 #include <vfs/ufs/fs.h> 46 47 #include "fsdb.h" 48 #include "fsck.h" 49 50 static void usage __P((void)); 51 int cmdloop __P((void)); 52 53 static void 54 usage() 55 { 56 fprintf(stderr, "usage: fsdb [-d] [-f] [-r] fsname\n"); 57 exit(1); 58 } 59 60 int returntosingle = 0; 61 char nflag = 0; 62 63 /* 64 * We suck in lots of fsck code, and just pick & choose the stuff we want. 65 * 66 * fsreadfd is set up to read from the file system, fswritefd to write to 67 * the file system. 68 */ 69 int 70 main(argc, argv) 71 int argc; 72 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 if (!setup(fsys)) 102 errx(1, "cannot set up file system `%s'", fsys); 103 printf("%s file system `%s'\nLast Mounted on %s\n", 104 nflag? "Examining": "Editing", fsys, sblock.fs_fsmnt); 105 rval = cmdloop(); 106 if (!nflag) { 107 sblock.fs_clean = 0; /* mark it dirty */ 108 sbdirty(); 109 ckfini(0); 110 printf("*** FILE SYSTEM MARKED DIRTY\n"); 111 printf("*** BE SURE TO RUN FSCK TO CLEAN UP ANY DAMAGE\n"); 112 printf("*** IF IT WAS MOUNTED, RE-MOUNT WITH -u -o reload\n"); 113 } 114 exit(rval); 115 } 116 117 #define CMDFUNC(func) int func __P((int argc, char *argv[])) 118 #define CMDFUNCSTART(func) int func(argc, argv) \ 119 int argc; \ 120 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 }, 183 }; 184 185 int 186 helpfn(argc, argv) 187 int argc; 188 char *argv[]; 189 { 190 register struct cmdtable *cmdtp; 191 192 printf("Commands are:\n%-10s %5s %5s %s\n", 193 "command", "min argc", "max argc", "what"); 194 195 for (cmdtp = cmds; cmdtp->cmd; cmdtp++) 196 printf("%-10s %5u %5u %s\n", 197 cmdtp->cmd, cmdtp->minargc, cmdtp->maxargc, cmdtp->helptxt); 198 return 0; 199 } 200 201 char * 202 prompt(el) 203 EditLine *el; 204 { 205 static char pstring[64]; 206 snprintf(pstring, sizeof(pstring), "fsdb (inum: %d)> ", curinum); 207 return pstring; 208 } 209 210 211 int 212 cmdloop() 213 { 214 char *line; 215 const char *elline; 216 int cmd_argc, rval = 0, known; 217 #define scratch known 218 char **cmd_argv; 219 struct cmdtable *cmdp; 220 History *hist; 221 EditLine *elptr; 222 223 curinode = ginode(ROOTINO); 224 curinum = ROOTINO; 225 printactive(0); 226 227 hist = history_init(); 228 history(hist, H_EVENT, 100); /* 100 elt history buffer */ 229 230 elptr = el_init("fsdb", stdin, stdout); 231 el_set(elptr, EL_EDITOR, "emacs"); 232 el_set(elptr, EL_PROMPT, prompt); 233 el_set(elptr, EL_HIST, history, hist); 234 el_source(elptr, NULL); 235 236 while ((elline = el_gets(elptr, &scratch)) != NULL && scratch != 0) { 237 if (debug) 238 printf("command `%s'\n", elline); 239 240 history(hist, H_ENTER, elline); 241 242 line = strdup(elline); 243 cmd_argv = crack(line, &cmd_argc); 244 /* 245 * el_parse returns -1 to signal that it's not been handled 246 * internally. 247 */ 248 if (el_parse(elptr, cmd_argc, cmd_argv) != -1) 249 continue; 250 if (cmd_argc) { 251 known = 0; 252 for (cmdp = cmds; cmdp->cmd; cmdp++) { 253 if (!strcmp(cmdp->cmd, cmd_argv[0])) { 254 if ((cmdp->flags & FL_WR) == FL_WR && nflag) 255 warnx("`%s' requires write access", cmd_argv[0]), 256 rval = 1; 257 else if (cmd_argc >= cmdp->minargc && 258 cmd_argc <= cmdp->maxargc) 259 rval = (*cmdp->handler)(cmd_argc, cmd_argv); 260 else 261 rval = argcount(cmdp, cmd_argc, cmd_argv); 262 known = 1; 263 break; 264 } 265 } 266 if (!known) 267 warnx("unknown command `%s'", cmd_argv[0]), rval = 1; 268 } else 269 rval = 0; 270 free(line); 271 if (rval < 0) 272 return rval; 273 if (rval) 274 warnx("rval was %d", rval); 275 } 276 el_end(elptr); 277 history_end(hist); 278 return rval; 279 } 280 281 struct dinode *curinode; 282 ino_t curinum, ocurrent; 283 284 #define GETINUM(ac,inum) inum = strtoul(argv[ac], &cp, 0); \ 285 if (inum < ROOTINO || inum > maxino || cp == argv[ac] || *cp != '\0' ) { \ 286 printf("inode %d out of range; range is [%d,%d]\n", \ 287 inum, ROOTINO, maxino); \ 288 return 1; \ 289 } 290 291 /* 292 * Focus on given inode number 293 */ 294 CMDFUNCSTART(focus) 295 { 296 ino_t inum; 297 char *cp; 298 299 GETINUM(1,inum); 300 curinode = ginode(inum); 301 ocurrent = curinum; 302 curinum = inum; 303 printactive(0); 304 return 0; 305 } 306 307 CMDFUNCSTART(back) 308 { 309 curinum = ocurrent; 310 curinode = ginode(curinum); 311 printactive(0); 312 return 0; 313 } 314 315 CMDFUNCSTART(zapi) 316 { 317 ino_t inum; 318 struct dinode *dp; 319 char *cp; 320 321 GETINUM(1,inum); 322 dp = ginode(inum); 323 clearinode(dp); 324 inodirty(); 325 if (curinode) /* re-set after potential change */ 326 curinode = ginode(curinum); 327 return 0; 328 } 329 330 CMDFUNCSTART(active) 331 { 332 printactive(0); 333 return 0; 334 } 335 336 CMDFUNCSTART(blocks) 337 { 338 printactive(1); 339 return 0; 340 } 341 342 CMDFUNCSTART(quit) 343 { 344 return -1; 345 } 346 347 CMDFUNCSTART(uplink) 348 { 349 if (!checkactive()) 350 return 1; 351 printf("inode %d link count now %d\n", curinum, ++curinode->di_nlink); 352 inodirty(); 353 return 0; 354 } 355 356 CMDFUNCSTART(downlink) 357 { 358 if (!checkactive()) 359 return 1; 360 printf("inode %d link count now %d\n", curinum, --curinode->di_nlink); 361 inodirty(); 362 return 0; 363 } 364 365 const char *typename[] = { 366 "unknown", 367 "fifo", 368 "char special", 369 "unregistered #3", 370 "directory", 371 "unregistered #5", 372 "blk special", 373 "unregistered #7", 374 "regular", 375 "unregistered #9", 376 "symlink", 377 "unregistered #11", 378 "socket", 379 "unregistered #13", 380 "whiteout", 381 }; 382 383 int slot; 384 385 int 386 scannames(idesc) 387 struct inodesc *idesc; 388 { 389 register struct direct *dirp = idesc->id_dirp; 390 391 printf("slot %d ino %d reclen %d: %s, `%.*s'\n", 392 slot++, dirp->d_ino, dirp->d_reclen, typename[dirp->d_type], 393 dirp->d_namlen, dirp->d_name); 394 return (KEEPON); 395 } 396 397 CMDFUNCSTART(ls) 398 { 399 struct inodesc idesc; 400 checkactivedir(); /* let it go on anyway */ 401 402 slot = 0; 403 idesc.id_number = curinum; 404 idesc.id_func = scannames; 405 idesc.id_type = DATA; 406 idesc.id_fix = IGNORE; 407 ckinode(curinode, &idesc); 408 curinode = ginode(curinum); 409 410 return 0; 411 } 412 413 int findino __P((struct inodesc *idesc)); /* from fsck */ 414 static int dolookup __P((char *name)); 415 416 static int 417 dolookup(name) 418 char *name; 419 { 420 struct inodesc idesc; 421 422 if (!checkactivedir()) 423 return 0; 424 idesc.id_number = curinum; 425 idesc.id_func = findino; 426 idesc.id_name = name; 427 idesc.id_type = DATA; 428 idesc.id_fix = IGNORE; 429 if (ckinode(curinode, &idesc) & FOUND) { 430 curinum = idesc.id_parent; 431 curinode = ginode(curinum); 432 printactive(0); 433 return 1; 434 } else { 435 warnx("name `%s' not found in current inode directory", name); 436 return 0; 437 } 438 } 439 440 CMDFUNCSTART(focusname) 441 { 442 char *p, *val; 443 444 if (!checkactive()) 445 return 1; 446 447 ocurrent = curinum; 448 449 if (argv[1][0] == '/') { 450 curinum = ROOTINO; 451 curinode = ginode(ROOTINO); 452 } else { 453 if (!checkactivedir()) 454 return 1; 455 } 456 for (p = argv[1]; p != NULL;) { 457 while ((val = strsep(&p, "/")) != NULL && *val == '\0'); 458 if (val) { 459 printf("component `%s': ", val); 460 fflush(stdout); 461 if (!dolookup(val)) { 462 curinode = ginode(curinum); 463 return(1); 464 } 465 } 466 } 467 return 0; 468 } 469 470 CMDFUNCSTART(ln) 471 { 472 ino_t inum; 473 int rval; 474 char *cp; 475 476 GETINUM(1,inum); 477 478 if (!checkactivedir()) 479 return 1; 480 rval = makeentry(curinum, inum, argv[2]); 481 if (rval) 482 printf("Ino %d entered as `%s'\n", inum, argv[2]); 483 else 484 printf("could not enter name? weird.\n"); 485 curinode = ginode(curinum); 486 return rval; 487 } 488 489 CMDFUNCSTART(rm) 490 { 491 int rval; 492 493 if (!checkactivedir()) 494 return 1; 495 rval = changeino(curinum, argv[1], 0); 496 if (rval & ALTERED) { 497 printf("Name `%s' removed\n", argv[1]); 498 return 0; 499 } else { 500 printf("could not remove name? weird.\n"); 501 return 1; 502 } 503 } 504 505 long slotcount, desired; 506 507 int 508 chinumfunc(idesc) 509 struct inodesc *idesc; 510 { 511 register struct direct *dirp = idesc->id_dirp; 512 513 if (slotcount++ == desired) { 514 dirp->d_ino = idesc->id_parent; 515 return STOP|ALTERED|FOUND; 516 } 517 return KEEPON; 518 } 519 520 CMDFUNCSTART(chinum) 521 { 522 char *cp; 523 ino_t inum; 524 struct inodesc idesc; 525 526 slotcount = 0; 527 if (!checkactivedir()) 528 return 1; 529 GETINUM(2,inum); 530 531 desired = strtol(argv[1], &cp, 0); 532 if (cp == argv[1] || *cp != '\0' || desired < 0) { 533 printf("invalid slot number `%s'\n", argv[1]); 534 return 1; 535 } 536 537 idesc.id_number = curinum; 538 idesc.id_func = chinumfunc; 539 idesc.id_fix = IGNORE; 540 idesc.id_type = DATA; 541 idesc.id_parent = inum; /* XXX convenient hiding place */ 542 543 if (ckinode(curinode, &idesc) & FOUND) 544 return 0; 545 else { 546 warnx("no %sth slot in current directory", argv[1]); 547 return 1; 548 } 549 } 550 551 int 552 chnamefunc(idesc) 553 struct inodesc *idesc; 554 { 555 register 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 = 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 curinode->di_mode &= ~IFMT; 638 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 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 curinode->di_mode &= ~07777; 681 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 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 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 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 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 curinode->di_gid = gid; 810 inodirty(); 811 printactive(0); 812 return rval; 813 } 814 815 int 816 dotime(name, rts) 817 char *name; 818 struct timespec *rts; 819 { 820 char *p, *val; 821 struct tm t; 822 int32_t sec; 823 int32_t nsec; 824 p = strchr(name, '.'); 825 if (p) { 826 *p = '\0'; 827 nsec = strtoul(++p, &val, 0); 828 if (val == p || *val != '\0' || nsec >= 1000000000 || nsec < 0) { 829 warnx("invalid nanoseconds"); 830 goto badformat; 831 } 832 } else 833 nsec = 0; 834 if (strlen(name) != 14) { 835 badformat: 836 warnx("date format: YYYYMMDDHHMMSS[.nsec]"); 837 return 1; 838 } 839 840 for (p = name; *p; p++) 841 if (*p < '0' || *p > '9') 842 goto badformat; 843 844 p = name; 845 #define VAL() ((*p++) - '0') 846 t.tm_year = VAL(); 847 t.tm_year = VAL() + t.tm_year * 10; 848 t.tm_year = VAL() + t.tm_year * 10; 849 t.tm_year = VAL() + t.tm_year * 10 - 1900; 850 t.tm_mon = VAL(); 851 t.tm_mon = VAL() + t.tm_mon * 10 - 1; 852 t.tm_mday = VAL(); 853 t.tm_mday = VAL() + t.tm_mday * 10; 854 t.tm_hour = VAL(); 855 t.tm_hour = VAL() + t.tm_hour * 10; 856 t.tm_min = VAL(); 857 t.tm_min = VAL() + t.tm_min * 10; 858 t.tm_sec = VAL(); 859 t.tm_sec = VAL() + t.tm_sec * 10; 860 t.tm_isdst = -1; 861 862 sec = mktime(&t); 863 if (sec == -1) { 864 warnx("date/time out of range"); 865 return 1; 866 } 867 rts->tv_sec = sec; 868 rts->tv_nsec = nsec; 869 return 0; 870 } 871 872 CMDFUNCSTART(chmtime) 873 { 874 if (dotime(argv[1], &curinode->di_ctime)) 875 return 1; 876 inodirty(); 877 printactive(0); 878 return 0; 879 } 880 881 CMDFUNCSTART(chatime) 882 { 883 if (dotime(argv[1], &curinode->di_ctime)) 884 return 1; 885 inodirty(); 886 printactive(0); 887 return 0; 888 } 889 890 CMDFUNCSTART(chctime) 891 { 892 if (dotime(argv[1], &curinode->di_ctime)) 893 return 1; 894 inodirty(); 895 printactive(0); 896 return 0; 897 } 898