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 */
32
33 #include <sys/param.h>
34 #include <sys/time.h>
35 #include <ctype.h>
36 #include <err.h>
37 #include <grp.h>
38 #include <histedit.h>
39 #include <pwd.h>
40 #include <string.h>
41
42 #include <vfs/ufs/dinode.h>
43 #include <vfs/ufs/dir.h>
44 #include <vfs/ufs/fs.h>
45
46 #include "fsdb.h"
47 #include "fsck.h"
48
49 static void usage(void);
50 int cmdloop(void);
51
52 static void
usage(void)53 usage(void)
54 {
55 fprintf(stderr, "usage: fsdb [-d] [-f] [-r] fsname\n");
56 exit(1);
57 }
58
59 int returntosingle = 0;
60
61 /*
62 * We suck in lots of fsck code, and just pick & choose the stuff we want.
63 *
64 * fsreadfd is set up to read from the file system, fswritefd to write to
65 * the file system.
66 */
67 int
main(int argc,char ** argv)68 main(int argc, char **argv)
69 {
70 int ch, rval;
71 char *fsys = NULL;
72
73 while (-1 != (ch = getopt(argc, argv, "fdr"))) {
74 switch (ch) {
75 case 'f':
76 /* The -f option is left for historical
77 * reasons and has no meaning.
78 */
79 break;
80 case 'd':
81 debug++;
82 break;
83 case 'r':
84 nflag++; /* "no" in fsck, readonly for us */
85 break;
86 default:
87 usage();
88 }
89 }
90 argc -= optind;
91 argv += optind;
92 if (argc != 1)
93 usage();
94 else
95 fsys = argv[0];
96
97 if (!setup(fsys))
98 errx(1, "cannot set up file system `%s'", fsys);
99 printf("%s file system `%s'\nLast Mounted on %s\n",
100 nflag? "Examining": "Editing", fsys, sblock.fs_fsmnt);
101 rval = cmdloop();
102 if (!nflag) {
103 sblock.fs_clean = 0; /* mark it dirty */
104 sbdirty();
105 ckfini(0);
106 printf("*** FILE SYSTEM MARKED DIRTY\n");
107 printf("*** BE SURE TO RUN FSCK TO CLEAN UP ANY DAMAGE\n");
108 printf("*** IF IT WAS MOUNTED, RE-MOUNT WITH -u -o reload\n");
109 }
110 exit(rval);
111 }
112
113 #define CMDFUNC(func) int func (int argc, char **argv)
114 #define CMDFUNCSTART(func) int func(int argc, char **argv)
115
116 CMDFUNC(helpfn);
117 CMDFUNC(focus); /* focus on inode */
118 CMDFUNC(active); /* print active inode */
119 CMDFUNC(blocks); /* print blocks for active inode */
120 CMDFUNC(focusname); /* focus by name */
121 CMDFUNC(zapi); /* clear inode */
122 CMDFUNC(uplink); /* incr link */
123 CMDFUNC(downlink); /* decr link */
124 CMDFUNC(linkcount); /* set link count */
125 CMDFUNC(quit); /* quit */
126 CMDFUNC(ls); /* list directory */
127 CMDFUNC(rm); /* remove name */
128 CMDFUNC(ln); /* add name */
129 CMDFUNC(newtype); /* change type */
130 CMDFUNC(chmode); /* change mode */
131 CMDFUNC(chlen); /* change length */
132 CMDFUNC(chaflags); /* change flags */
133 CMDFUNC(chgen); /* change generation */
134 CMDFUNC(chowner); /* change owner */
135 CMDFUNC(chgroup); /* Change group */
136 CMDFUNC(back); /* pop back to last ino */
137 CMDFUNC(chmtime); /* Change mtime */
138 CMDFUNC(chctime); /* Change ctime */
139 CMDFUNC(chatime); /* Change atime */
140 CMDFUNC(chinum); /* Change inode # of dirent */
141 CMDFUNC(chname); /* Change dirname of dirent */
142
143 struct cmdtable cmds[] = {
144 { "help", "Print out help", 1, 1, FL_RO, helpfn },
145 { "?", "Print out help", 1, 1, FL_RO, helpfn },
146 { "inode", "Set active inode to INUM", 2, 2, FL_RO, focus },
147 { "clri", "Clear inode INUM", 2, 2, FL_WR, zapi },
148 { "lookup", "Set active inode by looking up NAME", 2, 2, FL_RO, focusname },
149 { "cd", "Set active inode by looking up NAME", 2, 2, FL_RO, focusname },
150 { "back", "Go to previous active inode", 1, 1, FL_RO, back },
151 { "active", "Print active inode", 1, 1, FL_RO, active },
152 { "print", "Print active inode", 1, 1, FL_RO, active },
153 { "blocks", "Print block numbers of active inode", 1, 1, FL_RO, blocks },
154 { "uplink", "Increment link count", 1, 1, FL_WR, uplink },
155 { "downlink", "Decrement link count", 1, 1, FL_WR, downlink },
156 { "linkcount", "Set link count to COUNT", 2, 2, FL_WR, linkcount },
157 { "ls", "List current inode as directory", 1, 1, FL_RO, ls },
158 { "rm", "Remove NAME from current inode directory", 2, 2, FL_WR, rm },
159 { "del", "Remove NAME from current inode directory", 2, 2, FL_WR, rm },
160 { "ln", "Hardlink INO into current inode directory as NAME", 3, 3, FL_WR, ln },
161 { "chinum", "Change dir entry number INDEX to INUM", 3, 3, FL_WR, chinum },
162 { "chname", "Change dir entry number INDEX to NAME", 3, 3, FL_WR, chname },
163 { "chtype", "Change type of current inode to TYPE", 2, 2, FL_WR, newtype },
164 { "chmod", "Change mode of current inode to MODE", 2, 2, FL_WR, chmode },
165 { "chlen", "Change length of current inode to LENGTH", 2, 2, FL_WR, chlen },
166 { "chown", "Change owner of current inode to OWNER", 2, 2, FL_WR, chowner },
167 { "chgrp", "Change group of current inode to GROUP", 2, 2, FL_WR, chgroup },
168 { "chflags", "Change flags of current inode to FLAGS", 2, 2, FL_WR, chaflags },
169 { "chgen", "Change generation number of current inode to GEN", 2, 2, FL_WR, chgen },
170 { "mtime", "Change mtime of current inode to MTIME", 2, 2, FL_WR, chmtime },
171 { "ctime", "Change ctime of current inode to CTIME", 2, 2, FL_WR, chctime },
172 { "atime", "Change atime of current inode to ATIME", 2, 2, FL_WR, chatime },
173 { "quit", "Exit", 1, 1, FL_RO, quit },
174 { "q", "Exit", 1, 1, FL_RO, quit },
175 { "exit", "Exit", 1, 1, FL_RO, quit },
176 { NULL, 0, 0, 0 },
177 };
178
179 int
helpfn(int argc,char ** argv)180 helpfn(int argc, char **argv)
181 {
182 struct cmdtable *cmdtp;
183
184 printf("Commands are:\n%-10s %5s %5s %s\n",
185 "command", "min argc", "max argc", "what");
186
187 for (cmdtp = cmds; cmdtp->cmd; cmdtp++)
188 printf("%-10s %5u %5u %s\n",
189 cmdtp->cmd, cmdtp->minargc, cmdtp->maxargc, cmdtp->helptxt);
190 return 0;
191 }
192
193 char *
prompt(EditLine * el)194 prompt(EditLine *el)
195 {
196 static char pstring[64];
197 snprintf(pstring, sizeof(pstring), "fsdb (inum: %ju)> ",
198 (uintmax_t)curinum);
199 return pstring;
200 }
201
202
203 int
cmdloop(void)204 cmdloop(void)
205 {
206 char *line;
207 const char *elline;
208 int cmd_argc, rval = 0, known;
209 #define scratch known
210 char **cmd_argv;
211 struct cmdtable *cmdp;
212 History *hist;
213 HistEvent he;
214 EditLine *elptr;
215
216 curinode = ginode(UFS_ROOTINO);
217 curinum = UFS_ROOTINO;
218 printactive(0);
219
220 hist = history_init();
221 history(hist, &he, H_SETSIZE, 100); /* 100 elt history buffer */
222
223 elptr = el_init("fsdb", stdin, stdout, stderr);
224 el_set(elptr, EL_EDITOR, "emacs");
225 el_set(elptr, EL_PROMPT, prompt);
226 el_set(elptr, EL_HIST, history, hist);
227 el_source(elptr, NULL);
228
229 while ((elline = el_gets(elptr, &scratch)) != NULL && scratch != 0) {
230 if (debug)
231 printf("command `%s'\n", elline);
232
233 history(hist, &he, H_ENTER, elline);
234
235 line = strdup(elline);
236 cmd_argv = crack(line, &cmd_argc);
237 /*
238 * el_parse returns -1 to signal that it's not been handled
239 * internally.
240 */
241 if (el_parse(elptr, cmd_argc, (const char **)cmd_argv) != -1)
242 continue;
243 if (cmd_argc) {
244 known = 0;
245 for (cmdp = cmds; cmdp->cmd; cmdp++) {
246 if (!strcmp(cmdp->cmd, cmd_argv[0])) {
247 if ((cmdp->flags & FL_WR) == FL_WR && nflag)
248 warnx("`%s' requires write access", cmd_argv[0]),
249 rval = 1;
250 else if (cmd_argc >= cmdp->minargc &&
251 cmd_argc <= cmdp->maxargc)
252 rval = (*cmdp->handler)(cmd_argc, cmd_argv);
253 else
254 rval = argcount(cmdp, cmd_argc, cmd_argv);
255 known = 1;
256 break;
257 }
258 }
259 if (!known)
260 warnx("unknown command `%s'", cmd_argv[0]), rval = 1;
261 } else
262 rval = 0;
263 free(line);
264 if (rval < 0)
265 return rval;
266 if (rval)
267 warnx("rval was %d", rval);
268 }
269 el_end(elptr);
270 history_end(hist);
271 return rval;
272 }
273
274 struct ufs1_dinode *curinode;
275 ino_t curinum, ocurrent;
276
277 #define GETINUM(ac,inum) inum = strtoul(argv[ac], &cp, 0); \
278 if (inum < UFS_ROOTINO || inum > maxino || \
279 cp == argv[ac] || *cp != '\0' ) { \
280 printf("inode %ju out of range; range is [%ju,%ju]\n", \
281 (uintmax_t)inum, (uintmax_t)UFS_ROOTINO, (uintmax_t)maxino); \
282 return 1; \
283 }
284
285 /*
286 * Focus on given inode number
287 */
CMDFUNCSTART(focus)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
CMDFUNCSTART(back)301 CMDFUNCSTART(back)
302 {
303 curinum = ocurrent;
304 curinode = ginode(curinum);
305 printactive(0);
306 return 0;
307 }
308
CMDFUNCSTART(zapi)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
CMDFUNCSTART(active)324 CMDFUNCSTART(active)
325 {
326 printactive(0);
327 return 0;
328 }
329
CMDFUNCSTART(blocks)330 CMDFUNCSTART(blocks)
331 {
332 printactive(1);
333 return 0;
334 }
335
CMDFUNCSTART(quit)336 CMDFUNCSTART(quit)
337 {
338 return -1;
339 }
340
CMDFUNCSTART(uplink)341 CMDFUNCSTART(uplink)
342 {
343 if (!checkactive())
344 return 1;
345 printf("inode %ju link count now %d\n", (uintmax_t)curinum,
346 ++curinode->di_nlink);
347 inodirty();
348 return 0;
349 }
350
CMDFUNCSTART(downlink)351 CMDFUNCSTART(downlink)
352 {
353 if (!checkactive())
354 return 1;
355 printf("inode %ju link count now %d\n", (uintmax_t)curinum,
356 --curinode->di_nlink);
357 inodirty();
358 return 0;
359 }
360
361 const char *typename[] = {
362 "unknown",
363 "fifo",
364 "char special",
365 "unregistered #3",
366 "directory",
367 "unregistered #5",
368 "blk special",
369 "unregistered #7",
370 "regular",
371 "unregistered #9",
372 "symlink",
373 "unregistered #11",
374 "socket",
375 "unregistered #13",
376 "whiteout",
377 };
378
379 int slot;
380
381 int
scannames(struct inodesc * idesc)382 scannames(struct inodesc *idesc)
383 {
384 struct direct *dirp = idesc->id_dirp;
385
386 printf("slot %d ino %d reclen %d: %s, `%.*s'\n",
387 slot++, dirp->d_ino, dirp->d_reclen, typename[dirp->d_type],
388 dirp->d_namlen, dirp->d_name);
389 return (KEEPON);
390 }
391
CMDFUNCSTART(ls)392 CMDFUNCSTART(ls)
393 {
394 struct inodesc idesc;
395 checkactivedir(); /* let it go on anyway */
396
397 slot = 0;
398 idesc.id_number = curinum;
399 idesc.id_func = scannames;
400 idesc.id_type = DATA;
401 idesc.id_fix = IGNORE;
402 ckinode(curinode, &idesc);
403 curinode = ginode(curinum);
404
405 return 0;
406 }
407
408 int findino(struct inodesc *idesc); /* from fsck */
409 static int dolookup(char *name);
410
411 static int
dolookup(char * name)412 dolookup(char *name)
413 {
414 struct inodesc idesc;
415
416 if (!checkactivedir())
417 return 0;
418 idesc.id_number = curinum;
419 idesc.id_func = findino;
420 idesc.id_name = name;
421 idesc.id_type = DATA;
422 idesc.id_fix = IGNORE;
423 if (ckinode(curinode, &idesc) & FOUND) {
424 curinum = idesc.id_parent;
425 curinode = ginode(curinum);
426 printactive(0);
427 return 1;
428 } else {
429 warnx("name `%s' not found in current inode directory", name);
430 return 0;
431 }
432 }
433
CMDFUNCSTART(focusname)434 CMDFUNCSTART(focusname)
435 {
436 char *p, *val;
437
438 if (!checkactive())
439 return 1;
440
441 ocurrent = curinum;
442
443 if (argv[1][0] == '/') {
444 curinum = UFS_ROOTINO;
445 curinode = ginode(UFS_ROOTINO);
446 } else {
447 if (!checkactivedir())
448 return 1;
449 }
450 for (p = argv[1]; p != NULL;) {
451 while ((val = strsep(&p, "/")) != NULL && *val == '\0');
452 if (val) {
453 printf("component `%s': ", val);
454 fflush(stdout);
455 if (!dolookup(val)) {
456 curinode = ginode(curinum);
457 return(1);
458 }
459 }
460 }
461 return 0;
462 }
463
CMDFUNCSTART(ln)464 CMDFUNCSTART(ln)
465 {
466 ino_t inum;
467 int rval;
468 char *cp;
469
470 GETINUM(1,inum);
471
472 if (!checkactivedir())
473 return 1;
474 rval = makeentry(curinum, inum, argv[2]);
475 if (rval)
476 printf("Ino %ju entered as `%s'\n", (uintmax_t)inum, argv[2]);
477 else
478 printf("could not enter name? weird.\n");
479 curinode = ginode(curinum);
480 return rval;
481 }
482
CMDFUNCSTART(rm)483 CMDFUNCSTART(rm)
484 {
485 int rval;
486
487 if (!checkactivedir())
488 return 1;
489 rval = changeino(curinum, argv[1], 0);
490 if (rval & ALTERED) {
491 printf("Name `%s' removed\n", argv[1]);
492 return 0;
493 } else {
494 printf("could not remove name? weird.\n");
495 return 1;
496 }
497 }
498
499 long slotcount, desired;
500
501 int
chinumfunc(struct inodesc * idesc)502 chinumfunc(struct inodesc *idesc)
503 {
504 struct direct *dirp = idesc->id_dirp;
505
506 if (slotcount++ == desired) {
507 dirp->d_ino = idesc->id_parent;
508 return STOP|ALTERED|FOUND;
509 }
510 return KEEPON;
511 }
512
CMDFUNCSTART(chinum)513 CMDFUNCSTART(chinum)
514 {
515 char *cp;
516 ino_t inum;
517 struct inodesc idesc;
518
519 slotcount = 0;
520 if (!checkactivedir())
521 return 1;
522 GETINUM(2,inum);
523
524 desired = strtol(argv[1], &cp, 0);
525 if (cp == argv[1] || *cp != '\0' || desired < 0) {
526 printf("invalid slot number `%s'\n", argv[1]);
527 return 1;
528 }
529
530 idesc.id_number = curinum;
531 idesc.id_func = chinumfunc;
532 idesc.id_fix = IGNORE;
533 idesc.id_type = DATA;
534 idesc.id_parent = inum; /* XXX convenient hiding place */
535
536 if (ckinode(curinode, &idesc) & FOUND)
537 return 0;
538 else {
539 warnx("no %sth slot in current directory", argv[1]);
540 return 1;
541 }
542 }
543
544 int
chnamefunc(struct inodesc * idesc)545 chnamefunc(struct inodesc *idesc)
546 {
547 struct direct *dirp = idesc->id_dirp;
548 struct direct testdir;
549
550 if (slotcount++ == desired) {
551 /* will name fit? */
552 testdir.d_namlen = strlen(idesc->id_name);
553 if (DIRSIZ(NEWDIRFMT, &testdir) <= dirp->d_reclen) {
554 dirp->d_namlen = testdir.d_namlen;
555 strcpy(dirp->d_name, idesc->id_name);
556 return STOP|ALTERED|FOUND;
557 } else
558 return STOP|FOUND; /* won't fit, so give up */
559 }
560 return KEEPON;
561 }
562
CMDFUNCSTART(chname)563 CMDFUNCSTART(chname)
564 {
565 int rval;
566 char *cp;
567 struct inodesc idesc;
568
569 slotcount = 0;
570 if (!checkactivedir())
571 return 1;
572
573 desired = strtoul(argv[1], &cp, 0);
574 if (cp == argv[1] || *cp != '\0') {
575 printf("invalid slot number `%s'\n", argv[1]);
576 return 1;
577 }
578
579 idesc.id_number = curinum;
580 idesc.id_func = chnamefunc;
581 idesc.id_fix = IGNORE;
582 idesc.id_type = DATA;
583 idesc.id_name = argv[2];
584
585 rval = ckinode(curinode, &idesc);
586 if ((rval & (FOUND|ALTERED)) == (FOUND|ALTERED))
587 return 0;
588 else if (rval & FOUND) {
589 warnx("new name `%s' does not fit in slot %s\n", argv[2], argv[1]);
590 return 1;
591 } else {
592 warnx("no %sth slot in current directory", argv[1]);
593 return 1;
594 }
595 }
596
597 struct typemap {
598 const char *typename;
599 int typebits;
600 } typenamemap[] = {
601 {"file", IFREG},
602 {"dir", IFDIR},
603 {"socket", IFSOCK},
604 {"fifo", IFIFO},
605 };
606
CMDFUNCSTART(newtype)607 CMDFUNCSTART(newtype)
608 {
609 int type;
610 struct typemap *tp;
611
612 if (!checkactive())
613 return 1;
614 type = curinode->di_mode & IFMT;
615 for (tp = typenamemap; tp < &typenamemap[NELEM(typenamemap)]; 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[NELEM(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
CMDFUNCSTART(chlen)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
CMDFUNCSTART(chmode)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
CMDFUNCSTART(chaflags)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
CMDFUNCSTART(chgen)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
CMDFUNCSTART(linkcount)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
CMDFUNCSTART(chowner)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
CMDFUNCSTART(chgroup)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
dotime(char * name,int32_t * rts)806 dotime(char *name, int32_t *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[0] = sec;
856 rts[1] = nsec;
857 return 0;
858 }
859
CMDFUNCSTART(chmtime)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
CMDFUNCSTART(chatime)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
CMDFUNCSTART(chctime)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