1 /* $NetBSD: fsdb.c,v 1.2 1995/10/08 23:18:10 thorpej Exp $ */
4 * Copyright (c) 1995 John T. Kohl
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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.
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 $
34 #include <sys/param.h>
43 #include <vfs/ufs/dinode.h>
44 #include <vfs/ufs/dir.h>
45 #include <vfs/ufs/fs.h>
50 static void usage(void);
56 fprintf(stderr, "usage: fsdb [-d] [-f] [-r] fsname\n");
60 int returntosingle = 0;
64 * We suck in lots of fsck code, and just pick & choose the stuff we want.
66 * fsreadfd is set up to read from the file system, fswritefd to write to
70 main(int argc, char **argv)
75 while (-1 != (ch = getopt(argc, argv, "fdr"))) {
78 /* The -f option is left for historical
79 * reasons and has no meaning.
86 nflag++; /* "no" in fsck, readonly for us */
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);
105 sblock.fs_clean = 0; /* mark it dirty */
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");
115 #define CMDFUNC(func) int func (int argc, char **argv)
116 #define CMDFUNCSTART(func) int func(int argc, char **argv)
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 */
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 },
182 helpfn(int argc, char **argv)
184 struct cmdtable *cmdtp;
186 printf("Commands are:\n%-10s %5s %5s %s\n",
187 "command", "min argc", "max argc", "what");
189 for (cmdtp = cmds; cmdtp->cmd; cmdtp++)
190 printf("%-10s %5u %5u %s\n",
191 cmdtp->cmd, cmdtp->minargc, cmdtp->maxargc, cmdtp->helptxt);
198 static char pstring[64];
199 snprintf(pstring, sizeof(pstring), "fsdb (inum: %d)> ", curinum);
209 int cmd_argc, rval = 0, known;
210 #define scratch known
212 struct cmdtable *cmdp;
217 curinode = ginode(ROOTINO);
221 hist = history_init();
222 history(hist, &he, H_SETSIZE, 100); /* 100 elt history buffer */
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);
230 while ((elline = el_gets(elptr, &scratch)) != NULL && scratch != 0) {
232 printf("command `%s'\n", elline);
234 history(hist, &he, H_ENTER, elline);
236 line = strdup(elline);
237 cmd_argv = crack(line, &cmd_argc);
239 * el_parse returns -1 to signal that it's not been handled
242 if (el_parse(elptr, cmd_argc, (const char **)cmd_argv) != -1)
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]),
251 else if (cmd_argc >= cmdp->minargc &&
252 cmd_argc <= cmdp->maxargc)
253 rval = (*cmdp->handler)(cmd_argc, cmd_argv);
255 rval = argcount(cmdp, cmd_argc, cmd_argv);
261 warnx("unknown command `%s'", cmd_argv[0]), rval = 1;
268 warnx("rval was %d", rval);
275 struct ufs1_dinode *curinode;
276 ino_t curinum, ocurrent;
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); \
286 * Focus on given inode number
294 curinode = ginode(inum);
304 curinode = ginode(curinum);
312 struct ufs1_dinode *dp;
319 if (curinode) /* re-set after potential change */
320 curinode = ginode(curinum);
345 printf("inode %d link count now %d\n", curinum, ++curinode->di_nlink);
350 CMDFUNCSTART(downlink)
354 printf("inode %d link count now %d\n", curinum, --curinode->di_nlink);
359 const char *typename[] = {
380 scannames(struct inodesc *idesc)
382 struct direct *dirp = idesc->id_dirp;
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);
392 struct inodesc idesc;
393 checkactivedir(); /* let it go on anyway */
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);
406 int findino(struct inodesc *idesc); /* from fsck */
407 static int dolookup(char *name);
412 struct inodesc idesc;
414 if (!checkactivedir())
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);
427 warnx("name `%s' not found in current inode directory", name);
432 CMDFUNCSTART(focusname)
441 if (argv[1][0] == '/') {
443 curinode = ginode(ROOTINO);
445 if (!checkactivedir())
448 for (p = argv[1]; p != NULL;) {
449 while ((val = strsep(&p, "/")) != NULL && *val == '\0');
451 printf("component `%s': ", val);
453 if (!dolookup(val)) {
454 curinode = ginode(curinum);
470 if (!checkactivedir())
472 rval = makeentry(curinum, inum, argv[2]);
474 printf("Ino %d entered as `%s'\n", inum, argv[2]);
476 printf("could not enter name? weird.\n");
477 curinode = ginode(curinum);
485 if (!checkactivedir())
487 rval = changeino(curinum, argv[1], 0);
488 if (rval & ALTERED) {
489 printf("Name `%s' removed\n", argv[1]);
492 printf("could not remove name? weird.\n");
497 long slotcount, desired;
500 chinumfunc(struct inodesc *idesc)
502 struct direct *dirp = idesc->id_dirp;
504 if (slotcount++ == desired) {
505 dirp->d_ino = idesc->id_parent;
506 return STOP|ALTERED|FOUND;
515 struct inodesc idesc;
518 if (!checkactivedir())
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]);
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 */
534 if (ckinode(curinode, &idesc) & FOUND)
537 warnx("no %sth slot in current directory", argv[1]);
543 chnamefunc(struct inodesc *idesc)
545 struct direct *dirp = idesc->id_dirp;
546 struct direct testdir;
548 if (slotcount++ == desired) {
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;
556 return STOP|FOUND; /* won't fit, so give up */
565 struct inodesc idesc;
568 if (!checkactivedir())
571 desired = strtoul(argv[1], &cp, 0);
572 if (cp == argv[1] || *cp != '\0') {
573 printf("invalid slot number `%s'\n", argv[1]);
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];
583 rval = ckinode(curinode, &idesc);
584 if ((rval & (FOUND|ALTERED)) == (FOUND|ALTERED))
586 else if (rval & FOUND) {
587 warnx("new name `%s' does not fit in slot %s\n", argv[2], argv[1]);
590 warnx("no %sth slot in current directory", argv[1]);
596 const char *typename;
605 CMDFUNCSTART(newtype)
612 type = curinode->di_mode & IFMT;
613 for (tp = typenamemap;
614 tp < &typenamemap[sizeof(typenamemap)/sizeof(*typenamemap)];
616 if (!strcmp(argv[1], tp->typename)) {
617 printf("setting type to %s\n", tp->typename);
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'");
627 curinode->di_mode &= ~IFMT;
628 curinode->di_mode |= type;
643 len = strtol(argv[1], &cp, 0);
644 if (cp == argv[1] || *cp != '\0' || len < 0) {
645 warnx("bad length `%s'", argv[1]);
649 curinode->di_size = len;
664 modebits = strtol(argv[1], &cp, 8);
665 if (cp == argv[1] || *cp != '\0' || (modebits & ~07777)) {
666 warnx("bad modebits `%s'", argv[1]);
670 curinode->di_mode &= ~07777;
671 curinode->di_mode |= modebits;
677 CMDFUNCSTART(chaflags)
686 flags = strtoul(argv[1], &cp, 0);
687 if (cp == argv[1] || *cp != '\0' ) {
688 warnx("bad flags `%s'", argv[1]);
692 if (flags > UINT_MAX) {
693 warnx("flags set beyond 32-bit range of field (%lx)\n", flags);
696 curinode->di_flags = flags;
711 gen = strtol(argv[1], &cp, 0);
712 if (cp == argv[1] || *cp != '\0' ) {
713 warnx("bad gen `%s'", argv[1]);
717 if (gen > INT_MAX || gen < INT_MIN) {
718 warnx("gen set beyond 32-bit range of field (%lx)\n", gen);
721 curinode->di_gen = gen;
727 CMDFUNCSTART(linkcount)
736 lcnt = strtol(argv[1], &cp, 0);
737 if (cp == argv[1] || *cp != '\0' ) {
738 warnx("bad link count `%s'", argv[1]);
741 if (lcnt > USHRT_MAX || lcnt < 0) {
742 warnx("max link count is %d\n", USHRT_MAX);
746 curinode->di_nlink = lcnt;
752 CMDFUNCSTART(chowner)
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]))) {
768 warnx("bad uid `%s'", argv[1]);
773 curinode->di_uid = uid;
779 CMDFUNCSTART(chgroup)
789 gid = strtoul(argv[1], &cp, 0);
790 if (cp == argv[1] || *cp != '\0' ) {
791 if ((grp = getgrnam(argv[1]))) {
794 warnx("bad gid `%s'", argv[1]);
799 curinode->di_gid = gid;
806 dotime(char *name, struct timespec *rts)
812 p = strchr(name, '.');
815 nsec = strtoul(++p, &val, 0);
816 if (val == p || *val != '\0' || nsec >= 1000000000 || nsec < 0) {
817 warnx("invalid nanoseconds");
822 if (strlen(name) != 14) {
824 warnx("date format: YYYYMMDDHHMMSS[.nsec]");
828 for (p = name; *p; p++)
829 if (*p < '0' || *p > '9')
833 #define VAL() ((*p++) - '0')
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;
839 t.tm_mon = VAL() + t.tm_mon * 10 - 1;
841 t.tm_mday = VAL() + t.tm_mday * 10;
843 t.tm_hour = VAL() + t.tm_hour * 10;
845 t.tm_min = VAL() + t.tm_min * 10;
847 t.tm_sec = VAL() + t.tm_sec * 10;
852 warnx("date/time out of range");
860 CMDFUNCSTART(chmtime)
862 if (dotime(argv[1], &curinode->di_mtime))
869 CMDFUNCSTART(chatime)
871 if (dotime(argv[1], &curinode->di_atime))
878 CMDFUNCSTART(chctime)
880 if (dotime(argv[1], &curinode->di_ctime))