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 1.6 2003/11/01 17:15:59 drhodus 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 register 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;
216 curinode = ginode(ROOTINO);
220 hist = history_init();
221 history(hist, H_EVENT, 100); /* 100 elt history buffer */
223 elptr = el_init("fsdb", stdin, stdout);
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);
229 while ((elline = el_gets(elptr, &scratch)) != NULL && scratch != 0) {
231 printf("command `%s'\n", elline);
233 history(hist, H_ENTER, elline);
235 line = strdup(elline);
236 cmd_argv = crack(line, &cmd_argc);
238 * el_parse returns -1 to signal that it's not been handled
241 if (el_parse(elptr, cmd_argc, cmd_argv) != -1)
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]),
250 else if (cmd_argc >= cmdp->minargc &&
251 cmd_argc <= cmdp->maxargc)
252 rval = (*cmdp->handler)(cmd_argc, cmd_argv);
254 rval = argcount(cmdp, cmd_argc, cmd_argv);
260 warnx("unknown command `%s'", cmd_argv[0]), rval = 1;
267 warnx("rval was %d", rval);
274 struct dinode *curinode;
275 ino_t curinum, ocurrent;
277 #define GETINUM(ac,inum) inum = strtoul(argv[ac], &cp, 0); \
278 if (inum < ROOTINO || inum > maxino || cp == argv[ac] || *cp != '\0' ) { \
279 printf("inode %d out of range; range is [%d,%d]\n", \
280 inum, ROOTINO, maxino); \
285 * Focus on given inode number
293 curinode = ginode(inum);
303 curinode = ginode(curinum);
318 if (curinode) /* re-set after potential change */
319 curinode = ginode(curinum);
344 printf("inode %d link count now %d\n", curinum, ++curinode->di_nlink);
349 CMDFUNCSTART(downlink)
353 printf("inode %d link count now %d\n", curinum, --curinode->di_nlink);
358 const char *typename[] = {
379 scannames(struct inodesc *idesc)
381 register struct direct *dirp = idesc->id_dirp;
383 printf("slot %d ino %d reclen %d: %s, `%.*s'\n",
384 slot++, dirp->d_ino, dirp->d_reclen, typename[dirp->d_type],
385 dirp->d_namlen, dirp->d_name);
391 struct inodesc idesc;
392 checkactivedir(); /* let it go on anyway */
395 idesc.id_number = curinum;
396 idesc.id_func = scannames;
397 idesc.id_type = DATA;
398 idesc.id_fix = IGNORE;
399 ckinode(curinode, &idesc);
400 curinode = ginode(curinum);
405 int findino(struct inodesc *idesc); /* from fsck */
406 static int dolookup(char *name);
411 struct inodesc idesc;
413 if (!checkactivedir())
415 idesc.id_number = curinum;
416 idesc.id_func = findino;
417 idesc.id_name = name;
418 idesc.id_type = DATA;
419 idesc.id_fix = IGNORE;
420 if (ckinode(curinode, &idesc) & FOUND) {
421 curinum = idesc.id_parent;
422 curinode = ginode(curinum);
426 warnx("name `%s' not found in current inode directory", name);
431 CMDFUNCSTART(focusname)
440 if (argv[1][0] == '/') {
442 curinode = ginode(ROOTINO);
444 if (!checkactivedir())
447 for (p = argv[1]; p != NULL;) {
448 while ((val = strsep(&p, "/")) != NULL && *val == '\0');
450 printf("component `%s': ", val);
452 if (!dolookup(val)) {
453 curinode = ginode(curinum);
469 if (!checkactivedir())
471 rval = makeentry(curinum, inum, argv[2]);
473 printf("Ino %d entered as `%s'\n", inum, argv[2]);
475 printf("could not enter name? weird.\n");
476 curinode = ginode(curinum);
484 if (!checkactivedir())
486 rval = changeino(curinum, argv[1], 0);
487 if (rval & ALTERED) {
488 printf("Name `%s' removed\n", argv[1]);
491 printf("could not remove name? weird.\n");
496 long slotcount, desired;
499 chinumfunc(struct inodesc *idesc)
501 register struct direct *dirp = idesc->id_dirp;
503 if (slotcount++ == desired) {
504 dirp->d_ino = idesc->id_parent;
505 return STOP|ALTERED|FOUND;
514 struct inodesc idesc;
517 if (!checkactivedir())
521 desired = strtol(argv[1], &cp, 0);
522 if (cp == argv[1] || *cp != '\0' || desired < 0) {
523 printf("invalid slot number `%s'\n", argv[1]);
527 idesc.id_number = curinum;
528 idesc.id_func = chinumfunc;
529 idesc.id_fix = IGNORE;
530 idesc.id_type = DATA;
531 idesc.id_parent = inum; /* XXX convenient hiding place */
533 if (ckinode(curinode, &idesc) & FOUND)
536 warnx("no %sth slot in current directory", argv[1]);
542 chnamefunc(struct inodesc *idesc)
544 register struct direct *dirp = idesc->id_dirp;
545 struct direct testdir;
547 if (slotcount++ == desired) {
549 testdir.d_namlen = strlen(idesc->id_name);
550 if (DIRSIZ(NEWDIRFMT, &testdir) <= dirp->d_reclen) {
551 dirp->d_namlen = testdir.d_namlen;
552 strcpy(dirp->d_name, idesc->id_name);
553 return STOP|ALTERED|FOUND;
555 return STOP|FOUND; /* won't fit, so give up */
564 struct inodesc idesc;
567 if (!checkactivedir())
570 desired = strtoul(argv[1], &cp, 0);
571 if (cp == argv[1] || *cp != '\0') {
572 printf("invalid slot number `%s'\n", argv[1]);
576 idesc.id_number = curinum;
577 idesc.id_func = chnamefunc;
578 idesc.id_fix = IGNORE;
579 idesc.id_type = DATA;
580 idesc.id_name = argv[2];
582 rval = ckinode(curinode, &idesc);
583 if ((rval & (FOUND|ALTERED)) == (FOUND|ALTERED))
585 else if (rval & FOUND) {
586 warnx("new name `%s' does not fit in slot %s\n", argv[2], argv[1]);
589 warnx("no %sth slot in current directory", argv[1]);
595 const char *typename;
604 CMDFUNCSTART(newtype)
611 type = curinode->di_mode & IFMT;
612 for (tp = typenamemap;
613 tp < &typenamemap[sizeof(typenamemap)/sizeof(*typenamemap)];
615 if (!strcmp(argv[1], tp->typename)) {
616 printf("setting type to %s\n", tp->typename);
621 if (tp == &typenamemap[sizeof(typenamemap)/sizeof(*typenamemap)]) {
622 warnx("type `%s' not known", argv[1]);
623 warnx("try one of `file', `dir', `socket', `fifo'");
626 curinode->di_mode &= ~IFMT;
627 curinode->di_mode |= type;
642 len = strtol(argv[1], &cp, 0);
643 if (cp == argv[1] || *cp != '\0' || len < 0) {
644 warnx("bad length `%s'", argv[1]);
648 curinode->di_size = len;
663 modebits = strtol(argv[1], &cp, 8);
664 if (cp == argv[1] || *cp != '\0' || (modebits & ~07777)) {
665 warnx("bad modebits `%s'", argv[1]);
669 curinode->di_mode &= ~07777;
670 curinode->di_mode |= modebits;
676 CMDFUNCSTART(chaflags)
685 flags = strtoul(argv[1], &cp, 0);
686 if (cp == argv[1] || *cp != '\0' ) {
687 warnx("bad flags `%s'", argv[1]);
691 if (flags > UINT_MAX) {
692 warnx("flags set beyond 32-bit range of field (%lx)\n", flags);
695 curinode->di_flags = flags;
710 gen = strtol(argv[1], &cp, 0);
711 if (cp == argv[1] || *cp != '\0' ) {
712 warnx("bad gen `%s'", argv[1]);
716 if (gen > INT_MAX || gen < INT_MIN) {
717 warnx("gen set beyond 32-bit range of field (%lx)\n", gen);
720 curinode->di_gen = gen;
726 CMDFUNCSTART(linkcount)
735 lcnt = strtol(argv[1], &cp, 0);
736 if (cp == argv[1] || *cp != '\0' ) {
737 warnx("bad link count `%s'", argv[1]);
740 if (lcnt > USHRT_MAX || lcnt < 0) {
741 warnx("max link count is %d\n", USHRT_MAX);
745 curinode->di_nlink = lcnt;
751 CMDFUNCSTART(chowner)
761 uid = strtoul(argv[1], &cp, 0);
762 if (cp == argv[1] || *cp != '\0' ) {
763 /* try looking up name */
764 if ((pwd = getpwnam(argv[1]))) {
767 warnx("bad uid `%s'", argv[1]);
772 curinode->di_uid = uid;
778 CMDFUNCSTART(chgroup)
788 gid = strtoul(argv[1], &cp, 0);
789 if (cp == argv[1] || *cp != '\0' ) {
790 if ((grp = getgrnam(argv[1]))) {
793 warnx("bad gid `%s'", argv[1]);
798 curinode->di_gid = gid;
805 dotime(char *name, struct timespec *rts)
811 p = strchr(name, '.');
814 nsec = strtoul(++p, &val, 0);
815 if (val == p || *val != '\0' || nsec >= 1000000000 || nsec < 0) {
816 warnx("invalid nanoseconds");
821 if (strlen(name) != 14) {
823 warnx("date format: YYYYMMDDHHMMSS[.nsec]");
827 for (p = name; *p; p++)
828 if (*p < '0' || *p > '9')
832 #define VAL() ((*p++) - '0')
834 t.tm_year = VAL() + t.tm_year * 10;
835 t.tm_year = VAL() + t.tm_year * 10;
836 t.tm_year = VAL() + t.tm_year * 10 - 1900;
838 t.tm_mon = VAL() + t.tm_mon * 10 - 1;
840 t.tm_mday = VAL() + t.tm_mday * 10;
842 t.tm_hour = VAL() + t.tm_hour * 10;
844 t.tm_min = VAL() + t.tm_min * 10;
846 t.tm_sec = VAL() + t.tm_sec * 10;
851 warnx("date/time out of range");
859 CMDFUNCSTART(chmtime)
861 if (dotime(argv[1], &curinode->di_mtime))
868 CMDFUNCSTART(chatime)
870 if (dotime(argv[1], &curinode->di_atime))
877 CMDFUNCSTART(chctime)
879 if (dotime(argv[1], &curinode->di_ctime))