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 1.9 2006/04/03 01:58:49 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(void); 51 int cmdloop(void); 52 53 static void 54 usage(void) 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(int argc, char **argv) 71 { 72 int ch, rval; 73 char *fsys = NULL; 74 75 while (-1 != (ch = getopt(argc, argv, "fdr"))) { 76 switch (ch) { 77 case 'f': 78 /* The -f option is left for historical 79 * reasons and has no meaning. 80 */ 81 break; 82 case 'd': 83 debug++; 84 break; 85 case 'r': 86 nflag++; /* "no" in fsck, readonly for us */ 87 break; 88 default: 89 usage(); 90 } 91 } 92 argc -= optind; 93 argv += optind; 94 if (argc != 1) 95 usage(); 96 else 97 fsys = argv[0]; 98 99 if (!setup(fsys)) 100 errx(1, "cannot set up file system `%s'", fsys); 101 printf("%s file system `%s'\nLast Mounted on %s\n", 102 nflag? "Examining": "Editing", fsys, sblock.fs_fsmnt); 103 rval = cmdloop(); 104 if (!nflag) { 105 sblock.fs_clean = 0; /* mark it dirty */ 106 sbdirty(); 107 ckfini(0); 108 printf("*** FILE SYSTEM MARKED DIRTY\n"); 109 printf("*** BE SURE TO RUN FSCK TO CLEAN UP ANY DAMAGE\n"); 110 printf("*** IF IT WAS MOUNTED, RE-MOUNT WITH -u -o reload\n"); 111 } 112 exit(rval); 113 } 114 115 #define CMDFUNC(func) int func (int argc, char **argv) 116 #define CMDFUNCSTART(func) int func(int argc, char **argv) 117 118 CMDFUNC(helpfn); 119 CMDFUNC(focus); /* focus on inode */ 120 CMDFUNC(active); /* print active inode */ 121 CMDFUNC(blocks); /* print blocks for active inode */ 122 CMDFUNC(focusname); /* focus by name */ 123 CMDFUNC(zapi); /* clear inode */ 124 CMDFUNC(uplink); /* incr link */ 125 CMDFUNC(downlink); /* decr link */ 126 CMDFUNC(linkcount); /* set link count */ 127 CMDFUNC(quit); /* quit */ 128 CMDFUNC(ls); /* list directory */ 129 CMDFUNC(rm); /* remove name */ 130 CMDFUNC(ln); /* add name */ 131 CMDFUNC(newtype); /* change type */ 132 CMDFUNC(chmode); /* change mode */ 133 CMDFUNC(chlen); /* change length */ 134 CMDFUNC(chaflags); /* change flags */ 135 CMDFUNC(chgen); /* change generation */ 136 CMDFUNC(chowner); /* change owner */ 137 CMDFUNC(chgroup); /* Change group */ 138 CMDFUNC(back); /* pop back to last ino */ 139 CMDFUNC(chmtime); /* Change mtime */ 140 CMDFUNC(chctime); /* Change ctime */ 141 CMDFUNC(chatime); /* Change atime */ 142 CMDFUNC(chinum); /* Change inode # of dirent */ 143 CMDFUNC(chname); /* Change dirname of dirent */ 144 145 struct cmdtable cmds[] = { 146 { "help", "Print out help", 1, 1, FL_RO, helpfn }, 147 { "?", "Print out help", 1, 1, FL_RO, helpfn }, 148 { "inode", "Set active inode to INUM", 2, 2, FL_RO, focus }, 149 { "clri", "Clear inode INUM", 2, 2, FL_WR, zapi }, 150 { "lookup", "Set active inode by looking up NAME", 2, 2, FL_RO, focusname }, 151 { "cd", "Set active inode by looking up NAME", 2, 2, FL_RO, focusname }, 152 { "back", "Go to previous active inode", 1, 1, FL_RO, back }, 153 { "active", "Print active inode", 1, 1, FL_RO, active }, 154 { "print", "Print active inode", 1, 1, FL_RO, active }, 155 { "blocks", "Print block numbers of active inode", 1, 1, FL_RO, blocks }, 156 { "uplink", "Increment link count", 1, 1, FL_WR, uplink }, 157 { "downlink", "Decrement link count", 1, 1, FL_WR, downlink }, 158 { "linkcount", "Set link count to COUNT", 2, 2, FL_WR, linkcount }, 159 { "ls", "List current inode as directory", 1, 1, FL_RO, ls }, 160 { "rm", "Remove NAME from current inode directory", 2, 2, FL_WR, rm }, 161 { "del", "Remove NAME from current inode directory", 2, 2, FL_WR, rm }, 162 { "ln", "Hardlink INO into current inode directory as NAME", 3, 3, FL_WR, ln }, 163 { "chinum", "Change dir entry number INDEX to INUM", 3, 3, FL_WR, chinum }, 164 { "chname", "Change dir entry number INDEX to NAME", 3, 3, FL_WR, chname }, 165 { "chtype", "Change type of current inode to TYPE", 2, 2, FL_WR, newtype }, 166 { "chmod", "Change mode of current inode to MODE", 2, 2, FL_WR, chmode }, 167 { "chlen", "Change length of current inode to LENGTH", 2, 2, FL_WR, chlen }, 168 { "chown", "Change owner of current inode to OWNER", 2, 2, FL_WR, chowner }, 169 { "chgrp", "Change group of current inode to GROUP", 2, 2, FL_WR, chgroup }, 170 { "chflags", "Change flags of current inode to FLAGS", 2, 2, FL_WR, chaflags }, 171 { "chgen", "Change generation number of current inode to GEN", 2, 2, FL_WR, chgen }, 172 { "mtime", "Change mtime of current inode to MTIME", 2, 2, FL_WR, chmtime }, 173 { "ctime", "Change ctime of current inode to CTIME", 2, 2, FL_WR, chctime }, 174 { "atime", "Change atime of current inode to ATIME", 2, 2, FL_WR, chatime }, 175 { "quit", "Exit", 1, 1, FL_RO, quit }, 176 { "q", "Exit", 1, 1, FL_RO, quit }, 177 { "exit", "Exit", 1, 1, FL_RO, quit }, 178 { NULL, 0, 0, 0 }, 179 }; 180 181 int 182 helpfn(int argc, char **argv) 183 { 184 struct cmdtable *cmdtp; 185 186 printf("Commands are:\n%-10s %5s %5s %s\n", 187 "command", "min argc", "max argc", "what"); 188 189 for (cmdtp = cmds; cmdtp->cmd; cmdtp++) 190 printf("%-10s %5u %5u %s\n", 191 cmdtp->cmd, cmdtp->minargc, cmdtp->maxargc, cmdtp->helptxt); 192 return 0; 193 } 194 195 char * 196 prompt(EditLine *el) 197 { 198 static char pstring[64]; 199 snprintf(pstring, sizeof(pstring), "fsdb (inum: %d)> ", curinum); 200 return pstring; 201 } 202 203 204 int 205 cmdloop(void) 206 { 207 char *line; 208 const char *elline; 209 int cmd_argc, rval = 0, known; 210 #define scratch known 211 char **cmd_argv; 212 struct cmdtable *cmdp; 213 History *hist; 214 HistEvent he; 215 EditLine *elptr; 216 217 curinode = ginode(ROOTINO); 218 curinum = ROOTINO; 219 printactive(0); 220 221 hist = history_init(); 222 history(hist, &he, H_SETSIZE, 100); /* 100 elt history buffer */ 223 224 elptr = el_init("fsdb", stdin, stdout, stderr); 225 el_set(elptr, EL_EDITOR, "emacs"); 226 el_set(elptr, EL_PROMPT, prompt); 227 el_set(elptr, EL_HIST, history, hist); 228 el_source(elptr, NULL); 229 230 while ((elline = el_gets(elptr, &scratch)) != NULL && scratch != 0) { 231 if (debug) 232 printf("command `%s'\n", elline); 233 234 history(hist, &he, H_ENTER, elline); 235 236 line = strdup(elline); 237 cmd_argv = crack(line, &cmd_argc); 238 /* 239 * el_parse returns -1 to signal that it's not been handled 240 * internally. 241 */ 242 if (el_parse(elptr, cmd_argc, (const char **)cmd_argv) != -1) 243 continue; 244 if (cmd_argc) { 245 known = 0; 246 for (cmdp = cmds; cmdp->cmd; cmdp++) { 247 if (!strcmp(cmdp->cmd, cmd_argv[0])) { 248 if ((cmdp->flags & FL_WR) == FL_WR && nflag) 249 warnx("`%s' requires write access", cmd_argv[0]), 250 rval = 1; 251 else if (cmd_argc >= cmdp->minargc && 252 cmd_argc <= cmdp->maxargc) 253 rval = (*cmdp->handler)(cmd_argc, cmd_argv); 254 else 255 rval = argcount(cmdp, cmd_argc, cmd_argv); 256 known = 1; 257 break; 258 } 259 } 260 if (!known) 261 warnx("unknown command `%s'", cmd_argv[0]), rval = 1; 262 } else 263 rval = 0; 264 free(line); 265 if (rval < 0) 266 return rval; 267 if (rval) 268 warnx("rval was %d", rval); 269 } 270 el_end(elptr); 271 history_end(hist); 272 return rval; 273 } 274 275 struct ufs1_dinode *curinode; 276 ino_t curinum, ocurrent; 277 278 #define GETINUM(ac,inum) inum = strtoul(argv[ac], &cp, 0); \ 279 if (inum < ROOTINO || inum > maxino || cp == argv[ac] || *cp != '\0' ) { \ 280 printf("inode %d out of range; range is [%d,%d]\n", \ 281 inum, ROOTINO, maxino); \ 282 return 1; \ 283 } 284 285 /* 286 * Focus on given inode number 287 */ 288 CMDFUNCSTART(focus) 289 { 290 ino_t inum; 291 char *cp; 292 293 GETINUM(1,inum); 294 curinode = ginode(inum); 295 ocurrent = curinum; 296 curinum = inum; 297 printactive(0); 298 return 0; 299 } 300 301 CMDFUNCSTART(back) 302 { 303 curinum = ocurrent; 304 curinode = ginode(curinum); 305 printactive(0); 306 return 0; 307 } 308 309 CMDFUNCSTART(zapi) 310 { 311 ino_t inum; 312 struct ufs1_dinode *dp; 313 char *cp; 314 315 GETINUM(1,inum); 316 dp = ginode(inum); 317 clearinode(dp); 318 inodirty(); 319 if (curinode) /* re-set after potential change */ 320 curinode = ginode(curinum); 321 return 0; 322 } 323 324 CMDFUNCSTART(active) 325 { 326 printactive(0); 327 return 0; 328 } 329 330 CMDFUNCSTART(blocks) 331 { 332 printactive(1); 333 return 0; 334 } 335 336 CMDFUNCSTART(quit) 337 { 338 return -1; 339 } 340 341 CMDFUNCSTART(uplink) 342 { 343 if (!checkactive()) 344 return 1; 345 printf("inode %d link count now %d\n", curinum, ++curinode->di_nlink); 346 inodirty(); 347 return 0; 348 } 349 350 CMDFUNCSTART(downlink) 351 { 352 if (!checkactive()) 353 return 1; 354 printf("inode %d link count now %d\n", curinum, --curinode->di_nlink); 355 inodirty(); 356 return 0; 357 } 358 359 const char *typename[] = { 360 "unknown", 361 "fifo", 362 "char special", 363 "unregistered #3", 364 "directory", 365 "unregistered #5", 366 "blk special", 367 "unregistered #7", 368 "regular", 369 "unregistered #9", 370 "symlink", 371 "unregistered #11", 372 "socket", 373 "unregistered #13", 374 "whiteout", 375 }; 376 377 int slot; 378 379 int 380 scannames(struct inodesc *idesc) 381 { 382 struct direct *dirp = idesc->id_dirp; 383 384 printf("slot %d ino %d reclen %d: %s, `%.*s'\n", 385 slot++, dirp->d_ino, dirp->d_reclen, typename[dirp->d_type], 386 dirp->d_namlen, dirp->d_name); 387 return (KEEPON); 388 } 389 390 CMDFUNCSTART(ls) 391 { 392 struct inodesc idesc; 393 checkactivedir(); /* let it go on anyway */ 394 395 slot = 0; 396 idesc.id_number = curinum; 397 idesc.id_func = scannames; 398 idesc.id_type = DATA; 399 idesc.id_fix = IGNORE; 400 ckinode(curinode, &idesc); 401 curinode = ginode(curinum); 402 403 return 0; 404 } 405 406 int findino(struct inodesc *idesc); /* from fsck */ 407 static int dolookup(char *name); 408 409 static int 410 dolookup(char *name) 411 { 412 struct inodesc idesc; 413 414 if (!checkactivedir()) 415 return 0; 416 idesc.id_number = curinum; 417 idesc.id_func = findino; 418 idesc.id_name = name; 419 idesc.id_type = DATA; 420 idesc.id_fix = IGNORE; 421 if (ckinode(curinode, &idesc) & FOUND) { 422 curinum = idesc.id_parent; 423 curinode = ginode(curinum); 424 printactive(0); 425 return 1; 426 } else { 427 warnx("name `%s' not found in current inode directory", name); 428 return 0; 429 } 430 } 431 432 CMDFUNCSTART(focusname) 433 { 434 char *p, *val; 435 436 if (!checkactive()) 437 return 1; 438 439 ocurrent = curinum; 440 441 if (argv[1][0] == '/') { 442 curinum = ROOTINO; 443 curinode = ginode(ROOTINO); 444 } else { 445 if (!checkactivedir()) 446 return 1; 447 } 448 for (p = argv[1]; p != NULL;) { 449 while ((val = strsep(&p, "/")) != NULL && *val == '\0'); 450 if (val) { 451 printf("component `%s': ", val); 452 fflush(stdout); 453 if (!dolookup(val)) { 454 curinode = ginode(curinum); 455 return(1); 456 } 457 } 458 } 459 return 0; 460 } 461 462 CMDFUNCSTART(ln) 463 { 464 ino_t inum; 465 int rval; 466 char *cp; 467 468 GETINUM(1,inum); 469 470 if (!checkactivedir()) 471 return 1; 472 rval = makeentry(curinum, inum, argv[2]); 473 if (rval) 474 printf("Ino %d entered as `%s'\n", inum, argv[2]); 475 else 476 printf("could not enter name? weird.\n"); 477 curinode = ginode(curinum); 478 return rval; 479 } 480 481 CMDFUNCSTART(rm) 482 { 483 int rval; 484 485 if (!checkactivedir()) 486 return 1; 487 rval = changeino(curinum, argv[1], 0); 488 if (rval & ALTERED) { 489 printf("Name `%s' removed\n", argv[1]); 490 return 0; 491 } else { 492 printf("could not remove name? weird.\n"); 493 return 1; 494 } 495 } 496 497 long slotcount, desired; 498 499 int 500 chinumfunc(struct inodesc *idesc) 501 { 502 struct direct *dirp = idesc->id_dirp; 503 504 if (slotcount++ == desired) { 505 dirp->d_ino = idesc->id_parent; 506 return STOP|ALTERED|FOUND; 507 } 508 return KEEPON; 509 } 510 511 CMDFUNCSTART(chinum) 512 { 513 char *cp; 514 ino_t inum; 515 struct inodesc idesc; 516 517 slotcount = 0; 518 if (!checkactivedir()) 519 return 1; 520 GETINUM(2,inum); 521 522 desired = strtol(argv[1], &cp, 0); 523 if (cp == argv[1] || *cp != '\0' || desired < 0) { 524 printf("invalid slot number `%s'\n", argv[1]); 525 return 1; 526 } 527 528 idesc.id_number = curinum; 529 idesc.id_func = chinumfunc; 530 idesc.id_fix = IGNORE; 531 idesc.id_type = DATA; 532 idesc.id_parent = inum; /* XXX convenient hiding place */ 533 534 if (ckinode(curinode, &idesc) & FOUND) 535 return 0; 536 else { 537 warnx("no %sth slot in current directory", argv[1]); 538 return 1; 539 } 540 } 541 542 int 543 chnamefunc(struct inodesc *idesc) 544 { 545 struct direct *dirp = idesc->id_dirp; 546 struct direct testdir; 547 548 if (slotcount++ == desired) { 549 /* will name fit? */ 550 testdir.d_namlen = strlen(idesc->id_name); 551 if (DIRSIZ(NEWDIRFMT, &testdir) <= dirp->d_reclen) { 552 dirp->d_namlen = testdir.d_namlen; 553 strcpy(dirp->d_name, idesc->id_name); 554 return STOP|ALTERED|FOUND; 555 } else 556 return STOP|FOUND; /* won't fit, so give up */ 557 } 558 return KEEPON; 559 } 560 561 CMDFUNCSTART(chname) 562 { 563 int rval; 564 char *cp; 565 struct inodesc idesc; 566 567 slotcount = 0; 568 if (!checkactivedir()) 569 return 1; 570 571 desired = strtoul(argv[1], &cp, 0); 572 if (cp == argv[1] || *cp != '\0') { 573 printf("invalid slot number `%s'\n", argv[1]); 574 return 1; 575 } 576 577 idesc.id_number = curinum; 578 idesc.id_func = chnamefunc; 579 idesc.id_fix = IGNORE; 580 idesc.id_type = DATA; 581 idesc.id_name = argv[2]; 582 583 rval = ckinode(curinode, &idesc); 584 if ((rval & (FOUND|ALTERED)) == (FOUND|ALTERED)) 585 return 0; 586 else if (rval & FOUND) { 587 warnx("new name `%s' does not fit in slot %s\n", argv[2], argv[1]); 588 return 1; 589 } else { 590 warnx("no %sth slot in current directory", argv[1]); 591 return 1; 592 } 593 } 594 595 struct typemap { 596 const char *typename; 597 int typebits; 598 } typenamemap[] = { 599 {"file", IFREG}, 600 {"dir", IFDIR}, 601 {"socket", IFSOCK}, 602 {"fifo", IFIFO}, 603 }; 604 605 CMDFUNCSTART(newtype) 606 { 607 int type; 608 struct typemap *tp; 609 610 if (!checkactive()) 611 return 1; 612 type = curinode->di_mode & IFMT; 613 for (tp = typenamemap; 614 tp < &typenamemap[sizeof(typenamemap)/sizeof(*typenamemap)]; 615 tp++) { 616 if (!strcmp(argv[1], tp->typename)) { 617 printf("setting type to %s\n", tp->typename); 618 type = tp->typebits; 619 break; 620 } 621 } 622 if (tp == &typenamemap[sizeof(typenamemap)/sizeof(*typenamemap)]) { 623 warnx("type `%s' not known", argv[1]); 624 warnx("try one of `file', `dir', `socket', `fifo'"); 625 return 1; 626 } 627 curinode->di_mode &= ~IFMT; 628 curinode->di_mode |= type; 629 inodirty(); 630 printactive(0); 631 return 0; 632 } 633 634 CMDFUNCSTART(chlen) 635 { 636 int rval = 1; 637 long len; 638 char *cp; 639 640 if (!checkactive()) 641 return 1; 642 643 len = strtol(argv[1], &cp, 0); 644 if (cp == argv[1] || *cp != '\0' || len < 0) { 645 warnx("bad length `%s'", argv[1]); 646 return 1; 647 } 648 649 curinode->di_size = len; 650 inodirty(); 651 printactive(0); 652 return rval; 653 } 654 655 CMDFUNCSTART(chmode) 656 { 657 int rval = 1; 658 long modebits; 659 char *cp; 660 661 if (!checkactive()) 662 return 1; 663 664 modebits = strtol(argv[1], &cp, 8); 665 if (cp == argv[1] || *cp != '\0' || (modebits & ~07777)) { 666 warnx("bad modebits `%s'", argv[1]); 667 return 1; 668 } 669 670 curinode->di_mode &= ~07777; 671 curinode->di_mode |= modebits; 672 inodirty(); 673 printactive(0); 674 return rval; 675 } 676 677 CMDFUNCSTART(chaflags) 678 { 679 int rval = 1; 680 u_long flags; 681 char *cp; 682 683 if (!checkactive()) 684 return 1; 685 686 flags = strtoul(argv[1], &cp, 0); 687 if (cp == argv[1] || *cp != '\0' ) { 688 warnx("bad flags `%s'", argv[1]); 689 return 1; 690 } 691 692 if (flags > UINT_MAX) { 693 warnx("flags set beyond 32-bit range of field (%lx)\n", flags); 694 return(1); 695 } 696 curinode->di_flags = flags; 697 inodirty(); 698 printactive(0); 699 return rval; 700 } 701 702 CMDFUNCSTART(chgen) 703 { 704 int rval = 1; 705 long gen; 706 char *cp; 707 708 if (!checkactive()) 709 return 1; 710 711 gen = strtol(argv[1], &cp, 0); 712 if (cp == argv[1] || *cp != '\0' ) { 713 warnx("bad gen `%s'", argv[1]); 714 return 1; 715 } 716 717 if (gen > INT_MAX || gen < INT_MIN) { 718 warnx("gen set beyond 32-bit range of field (%lx)\n", gen); 719 return(1); 720 } 721 curinode->di_gen = gen; 722 inodirty(); 723 printactive(0); 724 return rval; 725 } 726 727 CMDFUNCSTART(linkcount) 728 { 729 int rval = 1; 730 int lcnt; 731 char *cp; 732 733 if (!checkactive()) 734 return 1; 735 736 lcnt = strtol(argv[1], &cp, 0); 737 if (cp == argv[1] || *cp != '\0' ) { 738 warnx("bad link count `%s'", argv[1]); 739 return 1; 740 } 741 if (lcnt > USHRT_MAX || lcnt < 0) { 742 warnx("max link count is %d\n", USHRT_MAX); 743 return 1; 744 } 745 746 curinode->di_nlink = lcnt; 747 inodirty(); 748 printactive(0); 749 return rval; 750 } 751 752 CMDFUNCSTART(chowner) 753 { 754 int rval = 1; 755 unsigned long uid; 756 char *cp; 757 struct passwd *pwd; 758 759 if (!checkactive()) 760 return 1; 761 762 uid = strtoul(argv[1], &cp, 0); 763 if (cp == argv[1] || *cp != '\0' ) { 764 /* try looking up name */ 765 if ((pwd = getpwnam(argv[1]))) { 766 uid = pwd->pw_uid; 767 } else { 768 warnx("bad uid `%s'", argv[1]); 769 return 1; 770 } 771 } 772 773 curinode->di_uid = uid; 774 inodirty(); 775 printactive(0); 776 return rval; 777 } 778 779 CMDFUNCSTART(chgroup) 780 { 781 int rval = 1; 782 unsigned long gid; 783 char *cp; 784 struct group *grp; 785 786 if (!checkactive()) 787 return 1; 788 789 gid = strtoul(argv[1], &cp, 0); 790 if (cp == argv[1] || *cp != '\0' ) { 791 if ((grp = getgrnam(argv[1]))) { 792 gid = grp->gr_gid; 793 } else { 794 warnx("bad gid `%s'", argv[1]); 795 return 1; 796 } 797 } 798 799 curinode->di_gid = gid; 800 inodirty(); 801 printactive(0); 802 return rval; 803 } 804 805 int 806 dotime(char *name, struct timespec *rts) 807 { 808 char *p, *val; 809 struct tm t; 810 int32_t sec; 811 int32_t nsec; 812 p = strchr(name, '.'); 813 if (p) { 814 *p = '\0'; 815 nsec = strtoul(++p, &val, 0); 816 if (val == p || *val != '\0' || nsec >= 1000000000 || nsec < 0) { 817 warnx("invalid nanoseconds"); 818 goto badformat; 819 } 820 } else 821 nsec = 0; 822 if (strlen(name) != 14) { 823 badformat: 824 warnx("date format: YYYYMMDDHHMMSS[.nsec]"); 825 return 1; 826 } 827 828 for (p = name; *p; p++) 829 if (*p < '0' || *p > '9') 830 goto badformat; 831 832 p = name; 833 #define VAL() ((*p++) - '0') 834 t.tm_year = VAL(); 835 t.tm_year = VAL() + t.tm_year * 10; 836 t.tm_year = VAL() + t.tm_year * 10; 837 t.tm_year = VAL() + t.tm_year * 10 - 1900; 838 t.tm_mon = VAL(); 839 t.tm_mon = VAL() + t.tm_mon * 10 - 1; 840 t.tm_mday = VAL(); 841 t.tm_mday = VAL() + t.tm_mday * 10; 842 t.tm_hour = VAL(); 843 t.tm_hour = VAL() + t.tm_hour * 10; 844 t.tm_min = VAL(); 845 t.tm_min = VAL() + t.tm_min * 10; 846 t.tm_sec = VAL(); 847 t.tm_sec = VAL() + t.tm_sec * 10; 848 t.tm_isdst = -1; 849 850 sec = mktime(&t); 851 if (sec == -1) { 852 warnx("date/time out of range"); 853 return 1; 854 } 855 rts->tv_sec = sec; 856 rts->tv_nsec = nsec; 857 return 0; 858 } 859 860 CMDFUNCSTART(chmtime) 861 { 862 if (dotime(argv[1], &curinode->di_mtime)) 863 return 1; 864 inodirty(); 865 printactive(0); 866 return 0; 867 } 868 869 CMDFUNCSTART(chatime) 870 { 871 if (dotime(argv[1], &curinode->di_atime)) 872 return 1; 873 inodirty(); 874 printactive(0); 875 return 0; 876 } 877 878 CMDFUNCSTART(chctime) 879 { 880 if (dotime(argv[1], &curinode->di_ctime)) 881 return 1; 882 inodirty(); 883 printactive(0); 884 return 0; 885 } 886