1 /* $OpenBSD: fsdb.c,v 1.7 1999/08/06 20:41:06 deraadt Exp $ */ 2 /* $NetBSD: fsdb.c,v 1.7 1997/01/11 06:50:53 lukem Exp $ */ 3 4 /*- 5 * Copyright (c) 1996 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by John T. Kohl. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE 31 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 #ifndef lint 41 static char rcsid[] = "$NetBSD: fsdb.c,v 1.4 1996/03/21 17:56:15 jtc Exp $"; 42 #endif /* not lint */ 43 44 #include <sys/types.h> 45 #include <sys/stat.h> 46 #include <sys/param.h> 47 #include <sys/time.h> 48 #include <sys/mount.h> 49 #include <ctype.h> 50 #include <err.h> 51 #include <fcntl.h> 52 #include <grp.h> 53 #include <histedit.h> 54 #include <limits.h> 55 #include <pwd.h> 56 #include <stdio.h> 57 #include <stdlib.h> 58 #include <string.h> 59 #include <unistd.h> 60 61 #include <ufs/ufs/dinode.h> 62 #include <ufs/ufs/dir.h> 63 #include <ufs/ffs/fs.h> 64 65 #include "fsdb.h" 66 #include "fsck.h" 67 #include "extern.h" 68 69 extern char *__progname; /* from crt0.o */ 70 71 int main __P((int, char *[])); 72 static void usage __P((void)); 73 static int cmdloop __P((void)); 74 static int helpfn __P((int, char *[])); 75 static char *prompt __P((EditLine *)); 76 static int scannames __P((struct inodesc *)); 77 static int dolookup __P((char *)); 78 static int chinumfunc __P((struct inodesc *)); 79 static int chnamefunc __P((struct inodesc *)); 80 static int dotime __P((char *, int32_t *, int32_t *)); 81 82 int returntosingle = 0; 83 struct dinode *curinode; 84 ino_t curinum; 85 86 static void 87 usage() 88 { 89 fprintf(stderr, "usage: %s [-d] -f <fsname>\n", __progname); 90 exit(1); 91 } 92 93 /* 94 * We suck in lots of fsck code, and just pick & choose the stuff we want. 95 * 96 * fsreadfd is set up to read from the file system, fswritefd to write to 97 * the file system. 98 */ 99 int 100 main(argc, argv) 101 int argc; 102 char *argv[]; 103 { 104 int ch, rval; 105 char *fsys = NULL; 106 107 while (-1 != (ch = getopt(argc, argv, "f:d"))) { 108 switch (ch) { 109 case 'f': 110 fsys = optarg; 111 break; 112 case 'd': 113 debug++; 114 break; 115 default: 116 usage(); 117 } 118 } 119 if (fsys == NULL) 120 usage(); 121 if (!setup(fsys)) 122 errx(1, "cannot set up file system `%s'", fsys); 123 printf("Editing file system `%s'\nLast Mounted on %s\n", fsys, 124 sblock.fs_fsmnt); 125 rval = cmdloop(); 126 sblock.fs_clean = 0; /* mark it dirty */ 127 sbdirty(); 128 ckfini(0); 129 printf("*** FILE SYSTEM MARKED DIRTY\n"); 130 printf("*** BE SURE TO RUN FSCK TO CLEAN UP ANY DAMAGE\n"); 131 printf("*** IF IT WAS MOUNTED, RE-MOUNT WITH -u -o reload\n"); 132 exit(rval); 133 } 134 135 #define CMDFUNC(func) static int func __P((int argc, char *argv[])) 136 #define CMDFUNCSTART(func) static int func(argc, argv) \ 137 int argc; \ 138 char *argv[]; 139 140 CMDFUNC(helpfn); 141 CMDFUNC(focus); /* focus on inode */ 142 CMDFUNC(active); /* print active inode */ 143 CMDFUNC(focusname); /* focus by name */ 144 CMDFUNC(zapi); /* clear inode */ 145 CMDFUNC(uplink); /* incr link */ 146 CMDFUNC(downlink); /* decr link */ 147 CMDFUNC(linkcount); /* set link count */ 148 CMDFUNC(quit); /* quit */ 149 CMDFUNC(ls); /* list directory */ 150 CMDFUNC(rm); /* remove name */ 151 CMDFUNC(ln); /* add name */ 152 CMDFUNC(newtype); /* change type */ 153 CMDFUNC(chmode); /* change mode */ 154 CMDFUNC(chlen); /* change length */ 155 CMDFUNC(chaflags); /* change flags */ 156 CMDFUNC(chgen); /* change generation */ 157 CMDFUNC(chowner); /* change owner */ 158 CMDFUNC(chgroup); /* Change group */ 159 CMDFUNC(back); /* pop back to last ino */ 160 CMDFUNC(chmtime); /* Change mtime */ 161 CMDFUNC(chctime); /* Change ctime */ 162 CMDFUNC(chatime); /* Change atime */ 163 CMDFUNC(chinum); /* Change inode # of dirent */ 164 CMDFUNC(chname); /* Change dirname of dirent */ 165 166 static struct cmdtable cmds[] = { 167 { "help", "Print out help", 1, 1, helpfn }, 168 { "?", "Print out help", 1, 1, helpfn }, 169 { "inode", "Set active inode to INUM", 2, 2, focus }, 170 { "clri", "Clear inode INUM", 2, 2, zapi }, 171 { "lookup", "Set active inode by looking up NAME", 2, 2, focusname }, 172 { "cd", "Set active inode by looking up NAME", 2, 2, focusname }, 173 { "back", "Go to previous active inode", 1, 1, back }, 174 { "active", "Print active inode", 1, 1, active }, 175 { "print", "Print active inode", 1, 1, active }, 176 { "uplink", "Increment link count", 1, 1, uplink }, 177 { "downlink", "Decrement link count", 1, 1, downlink }, 178 { "linkcount", "Set link count to COUNT", 2, 2, linkcount }, 179 { "ls", "List current inode as directory", 1, 1, ls }, 180 { "rm", "Remove NAME from current inode directory", 2, 2, rm }, 181 { "del", "Remove NAME from current inode directory", 2, 2, rm }, 182 { "ln", "Hardlink INO into current inode directory as NAME", 3, 3, ln }, 183 { "chinum", "Change dir entry number INDEX to INUM", 3, 3, chinum }, 184 { "chname", "Change dir entry number INDEX to NAME", 3, 3, chname }, 185 { "chtype", "Change type of current inode to TYPE", 2, 2, newtype }, 186 { "chmod", "Change mode of current inode to MODE", 2, 2, chmode }, 187 { "chown", "Change owner of current inode to OWNER", 2, 2, chowner }, 188 { "chlen", "Change length of current inode to LENGTH", 2, 2, chlen }, 189 { "chgrp", "Change group of current inode to GROUP", 2, 2, chgroup }, 190 { "chflags", "Change flags of current inode to FLAGS", 2, 2, chaflags }, 191 { "chgen", "Change generation number of current inode to GEN", 2, 2, chgen }, 192 { "mtime", "Change mtime of current inode to MTIME", 2, 2, chmtime }, 193 { "ctime", "Change ctime of current inode to CTIME", 2, 2, chctime }, 194 { "atime", "Change atime of current inode to ATIME", 2, 2, chatime }, 195 { "quit", "Exit", 1, 1, quit }, 196 { "q", "Exit", 1, 1, quit }, 197 { "exit", "Exit", 1, 1, quit }, 198 { NULL, 0, 0, 0 }, 199 }; 200 201 static int 202 helpfn(argc, argv) 203 int argc; 204 char *argv[]; 205 { 206 register struct cmdtable *cmdtp; 207 208 printf("Commands are:\n%-10s %5s %5s %s\n", 209 "command", "min argc", "max argc", "what"); 210 211 for (cmdtp = cmds; cmdtp->cmd; cmdtp++) 212 printf("%-10s %5u %5u %s\n", 213 cmdtp->cmd, cmdtp->minargc, cmdtp->maxargc, cmdtp->helptxt); 214 return 0; 215 } 216 217 static char * 218 prompt(el) 219 EditLine *el; 220 { 221 static char pstring[64]; 222 snprintf(pstring, sizeof(pstring), "fsdb (inum: %d)> ", curinum); 223 return pstring; 224 } 225 226 227 static int 228 cmdloop() 229 { 230 char *line = NULL; 231 const char *elline; 232 int cmd_argc, rval = 0, known; 233 #define scratch known 234 char **cmd_argv; 235 struct cmdtable *cmdp; 236 History *hist; 237 EditLine *elptr; 238 239 curinode = ginode(ROOTINO); 240 curinum = ROOTINO; 241 printactive(); 242 243 hist = history_init(); 244 history(hist, H_EVENT, 100); /* 100 elt history buffer */ 245 246 elptr = el_init(__progname, stdin, stdout); 247 el_set(elptr, EL_EDITOR, "emacs"); 248 el_set(elptr, EL_PROMPT, prompt); 249 el_set(elptr, EL_HIST, history, hist); 250 el_source(elptr, NULL); 251 252 while ((elline = el_gets(elptr, &scratch)) != NULL && scratch != 0) { 253 if (debug) 254 printf("command `%s'\n", line); 255 256 history(hist, H_ENTER, elline); 257 258 line = strdup(elline); 259 cmd_argv = crack(line, &cmd_argc); 260 if (cmd_argc) { 261 /* 262 * el_parse returns -1 to signal that it's not been handled 263 * internally. 264 */ 265 if (el_parse(elptr, cmd_argc, cmd_argv) != -1) 266 continue; 267 known = 0; 268 for (cmdp = cmds; cmdp->cmd; cmdp++) { 269 if (!strcmp(cmdp->cmd, cmd_argv[0])) { 270 if (cmd_argc >= cmdp->minargc && 271 cmd_argc <= cmdp->maxargc) 272 rval = (*cmdp->handler)(cmd_argc, cmd_argv); 273 else 274 rval = argcount(cmdp, cmd_argc, cmd_argv); 275 known = 1; 276 break; 277 } 278 } 279 if (!known) 280 warnx("unknown command `%s'", cmd_argv[0]), rval = 1; 281 } else 282 rval = 0; 283 free(line); 284 if (rval < 0) 285 return rval; 286 if (rval) 287 warnx("rval was %d", rval); 288 } 289 el_end(elptr); 290 history_end(hist); 291 return rval; 292 } 293 294 static ino_t ocurrent; 295 296 #define GETINUM(ac,inum) inum = strtoul(argv[ac], &cp, 0); \ 297 if (inum < ROOTINO || inum > maxino || cp == argv[ac] || *cp != '\0' ) { \ 298 printf("inode %d out of range; range is [%d,%d]\n", \ 299 inum, ROOTINO, maxino); \ 300 return 1; \ 301 } 302 303 /* 304 * Focus on given inode number 305 */ 306 CMDFUNCSTART(focus) 307 { 308 ino_t inum; 309 char *cp; 310 311 GETINUM(1,inum); 312 curinode = ginode(inum); 313 ocurrent = curinum; 314 curinum = inum; 315 printactive(); 316 return 0; 317 } 318 319 CMDFUNCSTART(back) 320 { 321 curinum = ocurrent; 322 curinode = ginode(curinum); 323 printactive(); 324 return 0; 325 } 326 327 CMDFUNCSTART(zapi) 328 { 329 ino_t inum; 330 struct dinode *dp; 331 char *cp; 332 333 GETINUM(1,inum); 334 dp = ginode(inum); 335 clearinode(dp); 336 inodirty(); 337 if (curinode) /* re-set after potential change */ 338 curinode = ginode(curinum); 339 return 0; 340 } 341 342 CMDFUNCSTART(active) 343 { 344 printactive(); 345 return 0; 346 } 347 348 349 CMDFUNCSTART(quit) 350 { 351 return -1; 352 } 353 354 CMDFUNCSTART(uplink) 355 { 356 if (!checkactive()) 357 return 1; 358 printf("inode %d link count now %d\n", curinum, ++curinode->di_nlink); 359 inodirty(); 360 return 0; 361 } 362 363 CMDFUNCSTART(downlink) 364 { 365 if (!checkactive()) 366 return 1; 367 printf("inode %d link count now %d\n", curinum, --curinode->di_nlink); 368 inodirty(); 369 return 0; 370 } 371 372 static const char *typename[] = { 373 "unknown", 374 "fifo", 375 "char special", 376 "unregistered #3", 377 "directory", 378 "unregistered #5", 379 "blk special", 380 "unregistered #7", 381 "regular", 382 "unregistered #9", 383 "symlink", 384 "unregistered #11", 385 "socket", 386 "unregistered #13", 387 "whiteout", 388 }; 389 390 static int slot; 391 392 static int 393 scannames(idesc) 394 struct inodesc *idesc; 395 { 396 register struct direct *dirp = idesc->id_dirp; 397 398 printf("slot %d ino %d reclen %d: %s, `%.*s'\n", 399 slot++, dirp->d_ino, dirp->d_reclen, typename[dirp->d_type], 400 dirp->d_namlen, dirp->d_name); 401 return (KEEPON); 402 } 403 404 CMDFUNCSTART(ls) 405 { 406 struct inodesc idesc; 407 checkactivedir(); /* let it go on anyway */ 408 409 slot = 0; 410 idesc.id_number = curinum; 411 idesc.id_func = scannames; 412 idesc.id_type = DATA; 413 idesc.id_fix = IGNORE; 414 ckinode(curinode, &idesc); 415 curinode = ginode(curinum); 416 417 return 0; 418 } 419 420 static int 421 dolookup(name) 422 char *name; 423 { 424 struct inodesc idesc; 425 426 if (!checkactivedir()) 427 return 0; 428 idesc.id_number = curinum; 429 idesc.id_func = findino; 430 idesc.id_name = name; 431 idesc.id_type = DATA; 432 idesc.id_fix = IGNORE; 433 if (ckinode(curinode, &idesc) & FOUND) { 434 curinum = idesc.id_parent; 435 curinode = ginode(curinum); 436 printactive(); 437 return 1; 438 } else { 439 warnx("name `%s' not found in current inode directory", name); 440 return 0; 441 } 442 } 443 444 CMDFUNCSTART(focusname) 445 { 446 char *p, *val; 447 448 if (!checkactive()) 449 return 1; 450 451 ocurrent = curinum; 452 453 if (argv[1][0] == '/') { 454 curinum = ROOTINO; 455 curinode = ginode(ROOTINO); 456 } else { 457 if (!checkactivedir()) 458 return 1; 459 } 460 for (p = argv[1]; p != NULL;) { 461 while ((val = strsep(&p, "/")) != NULL && *val == '\0'); 462 if (val) { 463 printf("component `%s': ", val); 464 fflush(stdout); 465 if (!dolookup(val)) { 466 curinode = ginode(curinum); 467 return(1); 468 } 469 } 470 } 471 return 0; 472 } 473 474 CMDFUNCSTART(ln) 475 { 476 ino_t inum; 477 int rval; 478 char *cp; 479 480 GETINUM(1,inum); 481 482 if (!checkactivedir()) 483 return 1; 484 rval = makeentry(curinum, inum, argv[2]); 485 if (rval) 486 printf("Ino %d entered as `%s'\n", inum, argv[2]); 487 else 488 printf("could not enter name? weird.\n"); 489 curinode = ginode(curinum); 490 return rval; 491 } 492 493 CMDFUNCSTART(rm) 494 { 495 int rval; 496 497 if (!checkactivedir()) 498 return 1; 499 rval = changeino(curinum, argv[1], 0); 500 if (rval & ALTERED) { 501 printf("Name `%s' removed\n", argv[1]); 502 return 0; 503 } else { 504 printf("could not remove name? weird.\n"); 505 return 1; 506 } 507 } 508 509 static long slotcount, desired; 510 511 static int 512 chinumfunc(idesc) 513 struct inodesc *idesc; 514 { 515 register struct direct *dirp = idesc->id_dirp; 516 517 if (slotcount++ == desired) { 518 dirp->d_ino = idesc->id_parent; 519 return STOP|ALTERED|FOUND; 520 } 521 return KEEPON; 522 } 523 524 CMDFUNCSTART(chinum) 525 { 526 char *cp; 527 ino_t inum; 528 struct inodesc idesc; 529 530 slotcount = 0; 531 if (!checkactivedir()) 532 return 1; 533 GETINUM(2,inum); 534 535 desired = strtol(argv[1], &cp, 0); 536 if (cp == argv[1] || *cp != '\0' || desired < 0) { 537 printf("invalid slot number `%s'\n", argv[1]); 538 return 1; 539 } 540 541 idesc.id_number = curinum; 542 idesc.id_func = chinumfunc; 543 idesc.id_fix = IGNORE; 544 idesc.id_type = DATA; 545 idesc.id_parent = inum; /* XXX convenient hiding place */ 546 547 if (ckinode(curinode, &idesc) & FOUND) 548 return 0; 549 else { 550 warnx("no %sth slot in current directory", argv[1]); 551 return 1; 552 } 553 } 554 555 static int 556 chnamefunc(idesc) 557 struct inodesc *idesc; 558 { 559 register struct direct *dirp = idesc->id_dirp; 560 struct direct testdir; 561 562 if (slotcount++ == desired) { 563 /* will name fit? */ 564 testdir.d_namlen = strlen(idesc->id_name); 565 if (DIRSIZ(NEWDIRFMT, &testdir) <= dirp->d_reclen) { 566 dirp->d_namlen = testdir.d_namlen; 567 strcpy(dirp->d_name, idesc->id_name); 568 return STOP|ALTERED|FOUND; 569 } else 570 return STOP|FOUND; /* won't fit, so give up */ 571 } 572 return KEEPON; 573 } 574 575 CMDFUNCSTART(chname) 576 { 577 int rval; 578 char *cp; 579 struct inodesc idesc; 580 581 slotcount = 0; 582 if (!checkactivedir()) 583 return 1; 584 585 desired = strtoul(argv[1], &cp, 0); 586 if (cp == argv[1] || *cp != '\0') { 587 printf("invalid slot number `%s'\n", argv[1]); 588 return 1; 589 } 590 591 idesc.id_number = curinum; 592 idesc.id_func = chnamefunc; 593 idesc.id_fix = IGNORE; 594 idesc.id_type = DATA; 595 idesc.id_name = argv[2]; 596 597 rval = ckinode(curinode, &idesc); 598 if ((rval & (FOUND|ALTERED)) == (FOUND|ALTERED)) 599 return 0; 600 else if (rval & FOUND) { 601 warnx("new name `%s' does not fit in slot %s\n", argv[2], argv[1]); 602 return 1; 603 } else { 604 warnx("no %sth slot in current directory", argv[1]); 605 return 1; 606 } 607 } 608 609 static struct typemap { 610 const char *typename; 611 int typebits; 612 } typenamemap[] = { 613 {"file", IFREG}, 614 {"dir", IFDIR}, 615 {"socket", IFSOCK}, 616 {"fifo", IFIFO}, 617 }; 618 619 CMDFUNCSTART(newtype) 620 { 621 int type; 622 struct typemap *tp; 623 624 if (!checkactive()) 625 return 1; 626 type = curinode->di_mode & IFMT; 627 for (tp = typenamemap; 628 tp < &typenamemap[sizeof(typemap)/sizeof(*typemap)]; 629 tp++) { 630 if (!strcmp(argv[1], tp->typename)) { 631 printf("setting type to %s\n", tp->typename); 632 type = tp->typebits; 633 break; 634 } 635 } 636 if (tp == &typenamemap[sizeof(typemap)/sizeof(*typemap)]) { 637 warnx("type `%s' not known", argv[1]); 638 warnx("try one of `file', `dir', `socket', `fifo'"); 639 return 1; 640 } 641 curinode->di_mode &= ~IFMT; 642 curinode->di_mode |= type; 643 inodirty(); 644 printactive(); 645 return 0; 646 } 647 648 CMDFUNCSTART(chmode) 649 { 650 int rval = 1; 651 long modebits; 652 char *cp; 653 654 if (!checkactive()) 655 return 1; 656 657 modebits = strtol(argv[1], &cp, 8); 658 if (cp == argv[1] || *cp != '\0' ) { 659 warnx("bad modebits `%s'", argv[1]); 660 return 1; 661 } 662 663 curinode->di_mode &= ~07777; 664 curinode->di_mode |= modebits; 665 inodirty(); 666 printactive(); 667 return rval; 668 } 669 670 CMDFUNCSTART(chlen) 671 { 672 int rval = 1; 673 long len; 674 char *cp; 675 676 if (!checkactive()) 677 return 1; 678 679 len = strtol(argv[1], &cp, 0); 680 if (cp == argv[1] || *cp != '\0' || len < 0) { 681 warnx("bad length '%s'", argv[1]); 682 return 1; 683 } 684 685 curinode->di_size = len; 686 inodirty(); 687 printactive(); 688 return rval; 689 } 690 691 CMDFUNCSTART(chaflags) 692 { 693 int rval = 1; 694 u_long flags; 695 char *cp; 696 697 if (!checkactive()) 698 return 1; 699 700 flags = strtoul(argv[1], &cp, 0); 701 if (cp == argv[1] || *cp != '\0' ) { 702 warnx("bad flags `%s'", argv[1]); 703 return 1; 704 } 705 706 if (flags > UINT_MAX) { 707 warnx("flags set beyond 32-bit range of field (%lx)\n", flags); 708 return(1); 709 } 710 curinode->di_flags = flags; 711 inodirty(); 712 printactive(); 713 return rval; 714 } 715 716 CMDFUNCSTART(chgen) 717 { 718 int rval = 1; 719 long gen; 720 char *cp; 721 722 if (!checkactive()) 723 return 1; 724 725 gen = strtol(argv[1], &cp, 0); 726 if (cp == argv[1] || *cp != '\0' ) { 727 warnx("bad gen `%s'", argv[1]); 728 return 1; 729 } 730 731 if (gen > INT_MAX || gen < INT_MIN) { 732 warnx("gen set beyond 32-bit range of field (%lx)\n", gen); 733 return(1); 734 } 735 curinode->di_gen = gen; 736 inodirty(); 737 printactive(); 738 return rval; 739 } 740 741 CMDFUNCSTART(linkcount) 742 { 743 int rval = 1; 744 int lcnt; 745 char *cp; 746 747 if (!checkactive()) 748 return 1; 749 750 lcnt = strtol(argv[1], &cp, 0); 751 if (cp == argv[1] || *cp != '\0' ) { 752 warnx("bad link count `%s'", argv[1]); 753 return 1; 754 } 755 if (lcnt > USHRT_MAX || lcnt < 0) { 756 warnx("max link count is %d\n", USHRT_MAX); 757 return 1; 758 } 759 760 curinode->di_nlink = lcnt; 761 inodirty(); 762 printactive(); 763 return rval; 764 } 765 766 CMDFUNCSTART(chowner) 767 { 768 int rval = 1; 769 uid_t uid; 770 char *cp; 771 struct passwd *pwd; 772 773 if (!checkactive()) 774 return 1; 775 776 uid = strtoul(argv[1], &cp, 0); 777 if (cp == argv[1] || *cp != '\0' ) { 778 /* try looking up name */ 779 if ((pwd = getpwnam(argv[1]))) { 780 uid = pwd->pw_uid; 781 } else { 782 warnx("bad uid `%s'", argv[1]); 783 return 1; 784 } 785 } 786 787 curinode->di_uid = uid; 788 inodirty(); 789 printactive(); 790 return rval; 791 } 792 793 CMDFUNCSTART(chgroup) 794 { 795 int rval = 1; 796 gid_t gid; 797 char *cp; 798 struct group *grp; 799 800 if (!checkactive()) 801 return 1; 802 803 gid = strtoul(argv[1], &cp, 0); 804 if (cp == argv[1] || *cp != '\0' ) { 805 if ((grp = getgrnam(argv[1]))) { 806 gid = grp->gr_gid; 807 } else { 808 warnx("bad gid `%s'", argv[1]); 809 return 1; 810 } 811 } 812 813 curinode->di_gid = gid; 814 inodirty(); 815 printactive(); 816 return rval; 817 } 818 819 static int 820 dotime(name, rsec, rnsec) 821 char *name; 822 int32_t *rsec, *rnsec; 823 { 824 char *p, *val; 825 struct tm t; 826 int32_t sec; 827 int32_t nsec; 828 p = strchr(name, '.'); 829 if (p) { 830 *p = '\0'; 831 nsec = strtoul(++p, &val, 0); 832 if (val == p || *val != '\0' || nsec >= 1000000000 || nsec < 0) { 833 warnx("invalid nanoseconds"); 834 goto badformat; 835 } 836 } else 837 nsec = 0; 838 if (strlen(name) != 14) { 839 badformat: 840 warnx("date format: YYYYMMDDHHMMSS[.nsec]"); 841 return 1; 842 } 843 844 for (p = name; *p; p++) 845 if (*p < '0' || *p > '9') 846 goto badformat; 847 848 p = name; 849 #define VAL() ((*p++) - '0') 850 t.tm_year = VAL(); 851 t.tm_year = VAL() + t.tm_year * 10; 852 t.tm_year = VAL() + t.tm_year * 10; 853 t.tm_year = VAL() + t.tm_year * 10 - 1900; 854 t.tm_mon = VAL(); 855 t.tm_mon = VAL() + t.tm_mon * 10 - 1; 856 t.tm_mday = VAL(); 857 t.tm_mday = VAL() + t.tm_mday * 10; 858 t.tm_hour = VAL(); 859 t.tm_hour = VAL() + t.tm_hour * 10; 860 t.tm_min = VAL(); 861 t.tm_min = VAL() + t.tm_min * 10; 862 t.tm_sec = VAL(); 863 t.tm_sec = VAL() + t.tm_sec * 10; 864 t.tm_isdst = -1; 865 866 sec = mktime(&t); 867 if (sec == -1) { 868 warnx("date/time out of range"); 869 return 1; 870 } 871 *rsec = sec; 872 *rnsec = nsec; 873 return 0; 874 } 875 876 CMDFUNCSTART(chmtime) 877 { 878 if (dotime(argv[1], &curinode->di_mtime, &curinode->di_mtimensec)) 879 return 1; 880 inodirty(); 881 printactive(); 882 return 0; 883 } 884 885 CMDFUNCSTART(chatime) 886 { 887 if (dotime(argv[1], &curinode->di_atime, &curinode->di_atimensec)) 888 return 1; 889 inodirty(); 890 printactive(); 891 return 0; 892 } 893 894 CMDFUNCSTART(chctime) 895 { 896 if (dotime(argv[1], &curinode->di_ctime, &curinode->di_ctimensec)) 897 return 1; 898 inodirty(); 899 printactive(); 900 return 0; 901 } 902