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 $
33 #include <sys/param.h>
42 #include <vfs/ufs/dinode.h>
43 #include <vfs/ufs/dir.h>
44 #include <vfs/ufs/fs.h>
49 static void usage(void);
55 fprintf(stderr, "usage: fsdb [-d] [-f] [-r] fsname\n");
59 int returntosingle = 0;
63 * We suck in lots of fsck code, and just pick & choose the stuff we want.
65 * fsreadfd is set up to read from the file system, fswritefd to write to
69 main(int argc, char **argv)
74 while (-1 != (ch = getopt(argc, argv, "fdr"))) {
77 /* The -f option is left for historical
78 * reasons and has no meaning.
85 nflag++; /* "no" in fsck, readonly for us */
99 errx(1, "cannot set up file system `%s'", fsys);
100 printf("%s file system `%s'\nLast Mounted on %s\n",
101 nflag? "Examining": "Editing", fsys, sblock.fs_fsmnt);
104 sblock.fs_clean = 0; /* mark it dirty */
107 printf("*** FILE SYSTEM MARKED DIRTY\n");
108 printf("*** BE SURE TO RUN FSCK TO CLEAN UP ANY DAMAGE\n");
109 printf("*** IF IT WAS MOUNTED, RE-MOUNT WITH -u -o reload\n");
114 #define CMDFUNC(func) int func (int argc, char **argv)
115 #define CMDFUNCSTART(func) int func(int argc, char **argv)
118 CMDFUNC(focus); /* focus on inode */
119 CMDFUNC(active); /* print active inode */
120 CMDFUNC(blocks); /* print blocks for active inode */
121 CMDFUNC(focusname); /* focus by name */
122 CMDFUNC(zapi); /* clear inode */
123 CMDFUNC(uplink); /* incr link */
124 CMDFUNC(downlink); /* decr link */
125 CMDFUNC(linkcount); /* set link count */
126 CMDFUNC(quit); /* quit */
127 CMDFUNC(ls); /* list directory */
128 CMDFUNC(rm); /* remove name */
129 CMDFUNC(ln); /* add name */
130 CMDFUNC(newtype); /* change type */
131 CMDFUNC(chmode); /* change mode */
132 CMDFUNC(chlen); /* change length */
133 CMDFUNC(chaflags); /* change flags */
134 CMDFUNC(chgen); /* change generation */
135 CMDFUNC(chowner); /* change owner */
136 CMDFUNC(chgroup); /* Change group */
137 CMDFUNC(back); /* pop back to last ino */
138 CMDFUNC(chmtime); /* Change mtime */
139 CMDFUNC(chctime); /* Change ctime */
140 CMDFUNC(chatime); /* Change atime */
141 CMDFUNC(chinum); /* Change inode # of dirent */
142 CMDFUNC(chname); /* Change dirname of dirent */
144 struct cmdtable cmds[] = {
145 { "help", "Print out help", 1, 1, FL_RO, helpfn },
146 { "?", "Print out help", 1, 1, FL_RO, helpfn },
147 { "inode", "Set active inode to INUM", 2, 2, FL_RO, focus },
148 { "clri", "Clear inode INUM", 2, 2, FL_WR, zapi },
149 { "lookup", "Set active inode by looking up NAME", 2, 2, FL_RO, focusname },
150 { "cd", "Set active inode by looking up NAME", 2, 2, FL_RO, focusname },
151 { "back", "Go to previous active inode", 1, 1, FL_RO, back },
152 { "active", "Print active inode", 1, 1, FL_RO, active },
153 { "print", "Print active inode", 1, 1, FL_RO, active },
154 { "blocks", "Print block numbers of active inode", 1, 1, FL_RO, blocks },
155 { "uplink", "Increment link count", 1, 1, FL_WR, uplink },
156 { "downlink", "Decrement link count", 1, 1, FL_WR, downlink },
157 { "linkcount", "Set link count to COUNT", 2, 2, FL_WR, linkcount },
158 { "ls", "List current inode as directory", 1, 1, FL_RO, ls },
159 { "rm", "Remove NAME from current inode directory", 2, 2, FL_WR, rm },
160 { "del", "Remove NAME from current inode directory", 2, 2, FL_WR, rm },
161 { "ln", "Hardlink INO into current inode directory as NAME", 3, 3, FL_WR, ln },
162 { "chinum", "Change dir entry number INDEX to INUM", 3, 3, FL_WR, chinum },
163 { "chname", "Change dir entry number INDEX to NAME", 3, 3, FL_WR, chname },
164 { "chtype", "Change type of current inode to TYPE", 2, 2, FL_WR, newtype },
165 { "chmod", "Change mode of current inode to MODE", 2, 2, FL_WR, chmode },
166 { "chlen", "Change length of current inode to LENGTH", 2, 2, FL_WR, chlen },
167 { "chown", "Change owner of current inode to OWNER", 2, 2, FL_WR, chowner },
168 { "chgrp", "Change group of current inode to GROUP", 2, 2, FL_WR, chgroup },
169 { "chflags", "Change flags of current inode to FLAGS", 2, 2, FL_WR, chaflags },
170 { "chgen", "Change generation number of current inode to GEN", 2, 2, FL_WR, chgen },
171 { "mtime", "Change mtime of current inode to MTIME", 2, 2, FL_WR, chmtime },
172 { "ctime", "Change ctime of current inode to CTIME", 2, 2, FL_WR, chctime },
173 { "atime", "Change atime of current inode to ATIME", 2, 2, FL_WR, chatime },
174 { "quit", "Exit", 1, 1, FL_RO, quit },
175 { "q", "Exit", 1, 1, FL_RO, quit },
176 { "exit", "Exit", 1, 1, FL_RO, quit },
181 helpfn(int argc, char **argv)
183 struct cmdtable *cmdtp;
185 printf("Commands are:\n%-10s %5s %5s %s\n",
186 "command", "min argc", "max argc", "what");
188 for (cmdtp = cmds; cmdtp->cmd; cmdtp++)
189 printf("%-10s %5u %5u %s\n",
190 cmdtp->cmd, cmdtp->minargc, cmdtp->maxargc, cmdtp->helptxt);
197 static char pstring[64];
198 snprintf(pstring, sizeof(pstring), "fsdb (inum: %ju)> ",
209 int cmd_argc, rval = 0, known;
210 #define scratch known
212 struct cmdtable *cmdp;
217 curinode = ginode(UFS_ROOTINO);
218 curinum = UFS_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 < UFS_ROOTINO || inum > maxino || \
280 cp == argv[ac] || *cp != '\0' ) { \
281 printf("inode %ju out of range; range is [%ju,%ju]\n", \
282 (uintmax_t)inum, (uintmax_t)UFS_ROOTINO, (uintmax_t)maxino); \
287 * Focus on given inode number
295 curinode = ginode(inum);
305 curinode = ginode(curinum);
313 struct ufs1_dinode *dp;
320 if (curinode) /* re-set after potential change */
321 curinode = ginode(curinum);
346 printf("inode %ju link count now %d\n", (uintmax_t)curinum,
347 ++curinode->di_nlink);
352 CMDFUNCSTART(downlink)
356 printf("inode %ju link count now %d\n", (uintmax_t)curinum,
357 --curinode->di_nlink);
362 const char *typename[] = {
383 scannames(struct inodesc *idesc)
385 struct direct *dirp = idesc->id_dirp;
387 printf("slot %d ino %d reclen %d: %s, `%.*s'\n",
388 slot++, dirp->d_ino, dirp->d_reclen, typename[dirp->d_type],
389 dirp->d_namlen, dirp->d_name);
395 struct inodesc idesc;
396 checkactivedir(); /* let it go on anyway */
399 idesc.id_number = curinum;
400 idesc.id_func = scannames;
401 idesc.id_type = DATA;
402 idesc.id_fix = IGNORE;
403 ckinode(curinode, &idesc);
404 curinode = ginode(curinum);
409 int findino(struct inodesc *idesc); /* from fsck */
410 static int dolookup(char *name);
415 struct inodesc idesc;
417 if (!checkactivedir())
419 idesc.id_number = curinum;
420 idesc.id_func = findino;
421 idesc.id_name = name;
422 idesc.id_type = DATA;
423 idesc.id_fix = IGNORE;
424 if (ckinode(curinode, &idesc) & FOUND) {
425 curinum = idesc.id_parent;
426 curinode = ginode(curinum);
430 warnx("name `%s' not found in current inode directory", name);
435 CMDFUNCSTART(focusname)
444 if (argv[1][0] == '/') {
445 curinum = UFS_ROOTINO;
446 curinode = ginode(UFS_ROOTINO);
448 if (!checkactivedir())
451 for (p = argv[1]; p != NULL;) {
452 while ((val = strsep(&p, "/")) != NULL && *val == '\0');
454 printf("component `%s': ", val);
456 if (!dolookup(val)) {
457 curinode = ginode(curinum);
473 if (!checkactivedir())
475 rval = makeentry(curinum, inum, argv[2]);
477 printf("Ino %ju entered as `%s'\n", (uintmax_t)inum, argv[2]);
479 printf("could not enter name? weird.\n");
480 curinode = ginode(curinum);
488 if (!checkactivedir())
490 rval = changeino(curinum, argv[1], 0);
491 if (rval & ALTERED) {
492 printf("Name `%s' removed\n", argv[1]);
495 printf("could not remove name? weird.\n");
500 long slotcount, desired;
503 chinumfunc(struct inodesc *idesc)
505 struct direct *dirp = idesc->id_dirp;
507 if (slotcount++ == desired) {
508 dirp->d_ino = idesc->id_parent;
509 return STOP|ALTERED|FOUND;
518 struct inodesc idesc;
521 if (!checkactivedir())
525 desired = strtol(argv[1], &cp, 0);
526 if (cp == argv[1] || *cp != '\0' || desired < 0) {
527 printf("invalid slot number `%s'\n", argv[1]);
531 idesc.id_number = curinum;
532 idesc.id_func = chinumfunc;
533 idesc.id_fix = IGNORE;
534 idesc.id_type = DATA;
535 idesc.id_parent = inum; /* XXX convenient hiding place */
537 if (ckinode(curinode, &idesc) & FOUND)
540 warnx("no %sth slot in current directory", argv[1]);
546 chnamefunc(struct inodesc *idesc)
548 struct direct *dirp = idesc->id_dirp;
549 struct direct testdir;
551 if (slotcount++ == desired) {
553 testdir.d_namlen = strlen(idesc->id_name);
554 if (DIRSIZ(NEWDIRFMT, &testdir) <= dirp->d_reclen) {
555 dirp->d_namlen = testdir.d_namlen;
556 strcpy(dirp->d_name, idesc->id_name);
557 return STOP|ALTERED|FOUND;
559 return STOP|FOUND; /* won't fit, so give up */
568 struct inodesc idesc;
571 if (!checkactivedir())
574 desired = strtoul(argv[1], &cp, 0);
575 if (cp == argv[1] || *cp != '\0') {
576 printf("invalid slot number `%s'\n", argv[1]);
580 idesc.id_number = curinum;
581 idesc.id_func = chnamefunc;
582 idesc.id_fix = IGNORE;
583 idesc.id_type = DATA;
584 idesc.id_name = argv[2];
586 rval = ckinode(curinode, &idesc);
587 if ((rval & (FOUND|ALTERED)) == (FOUND|ALTERED))
589 else if (rval & FOUND) {
590 warnx("new name `%s' does not fit in slot %s\n", argv[2], argv[1]);
593 warnx("no %sth slot in current directory", argv[1]);
599 const char *typename;
608 CMDFUNCSTART(newtype)
615 type = curinode->di_mode & IFMT;
616 for (tp = typenamemap; tp < &typenamemap[NELEM(typenamemap)]; tp++) {
617 if (!strcmp(argv[1], tp->typename)) {
618 printf("setting type to %s\n", tp->typename);
623 if (tp == &typenamemap[NELEM(typenamemap)]) {
624 warnx("type `%s' not known", argv[1]);
625 warnx("try one of `file', `dir', `socket', `fifo'");
628 curinode->di_mode &= ~IFMT;
629 curinode->di_mode |= type;
644 len = strtol(argv[1], &cp, 0);
645 if (cp == argv[1] || *cp != '\0' || len < 0) {
646 warnx("bad length `%s'", argv[1]);
650 curinode->di_size = len;
665 modebits = strtol(argv[1], &cp, 8);
666 if (cp == argv[1] || *cp != '\0' || (modebits & ~07777)) {
667 warnx("bad modebits `%s'", argv[1]);
671 curinode->di_mode &= ~07777;
672 curinode->di_mode |= modebits;
678 CMDFUNCSTART(chaflags)
687 flags = strtoul(argv[1], &cp, 0);
688 if (cp == argv[1] || *cp != '\0' ) {
689 warnx("bad flags `%s'", argv[1]);
693 if (flags > UINT_MAX) {
694 warnx("flags set beyond 32-bit range of field (%lx)\n", flags);
697 curinode->di_flags = flags;
712 gen = strtol(argv[1], &cp, 0);
713 if (cp == argv[1] || *cp != '\0' ) {
714 warnx("bad gen `%s'", argv[1]);
718 if (gen > INT_MAX || gen < INT_MIN) {
719 warnx("gen set beyond 32-bit range of field (%lx)\n", gen);
722 curinode->di_gen = gen;
728 CMDFUNCSTART(linkcount)
737 lcnt = strtol(argv[1], &cp, 0);
738 if (cp == argv[1] || *cp != '\0' ) {
739 warnx("bad link count `%s'", argv[1]);
742 if (lcnt > USHRT_MAX || lcnt < 0) {
743 warnx("max link count is %d\n", USHRT_MAX);
747 curinode->di_nlink = lcnt;
753 CMDFUNCSTART(chowner)
763 uid = strtoul(argv[1], &cp, 0);
764 if (cp == argv[1] || *cp != '\0' ) {
765 /* try looking up name */
766 if ((pwd = getpwnam(argv[1]))) {
769 warnx("bad uid `%s'", argv[1]);
774 curinode->di_uid = uid;
780 CMDFUNCSTART(chgroup)
790 gid = strtoul(argv[1], &cp, 0);
791 if (cp == argv[1] || *cp != '\0' ) {
792 if ((grp = getgrnam(argv[1]))) {
795 warnx("bad gid `%s'", argv[1]);
800 curinode->di_gid = gid;
807 dotime(char *name, int32_t *rts)
813 p = strchr(name, '.');
816 nsec = strtoul(++p, &val, 0);
817 if (val == p || *val != '\0' || nsec >= 1000000000 || nsec < 0) {
818 warnx("invalid nanoseconds");
823 if (strlen(name) != 14) {
825 warnx("date format: YYYYMMDDHHMMSS[.nsec]");
829 for (p = name; *p; p++)
830 if (*p < '0' || *p > '9')
834 #define VAL() ((*p++) - '0')
836 t.tm_year = VAL() + t.tm_year * 10;
837 t.tm_year = VAL() + t.tm_year * 10;
838 t.tm_year = VAL() + t.tm_year * 10 - 1900;
840 t.tm_mon = VAL() + t.tm_mon * 10 - 1;
842 t.tm_mday = VAL() + t.tm_mday * 10;
844 t.tm_hour = VAL() + t.tm_hour * 10;
846 t.tm_min = VAL() + t.tm_min * 10;
848 t.tm_sec = VAL() + t.tm_sec * 10;
853 warnx("date/time out of range");
861 CMDFUNCSTART(chmtime)
863 if (dotime(argv[1], &curinode->di_mtime))
870 CMDFUNCSTART(chatime)
872 if (dotime(argv[1], &curinode->di_atime))
879 CMDFUNCSTART(chctime)
881 if (dotime(argv[1], &curinode->di_ctime))