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FFS debugging/editing tool, from John Kohl.

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1 parent a2bca40 commit 2ad425bd15d3c3293eeb95ce2f385670e2a027bf thorpej committed Oct 8, 1995
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  1. +13 −0 sbin/fsdb/Makefile
  2. +228 −0 sbin/fsdb/fsdb.8
  3. +850 −0 sbin/fsdb/fsdb.c
  4. +57 −0 sbin/fsdb/fsdb.h
  5. +196 −0 sbin/fsdb/fsdbutil.c
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13 sbin/fsdb/Makefile
@@ -0,0 +1,13 @@
+# $NetBSD: Makefile,v 1.1.1.1 1995/10/08 23:08:36 thorpej Exp $
+# @(#)Makefile 8.1 (Berkeley) 6/5/93
+
+PROG= fsdb
+MAN= fsdb.8
+SRCS= fsdb.c fsdbutil.c \
+ dir.c inode.c pass1.c pass1b.c pass2.c pass3.c pass4.c \
+ pass5.c preen.c setup.c utilities.c ffs_subr.c ffs_tables.c
+CFLAGS+= -I${.CURDIR}/../../sbin/fsck
+LDADD+= -ledit -ltermcap
+.PATH: ${.CURDIR}/../../sbin/fsck ${.CURDIR}/../../sys/ufs/ffs
+
+.include <bsd.prog.mk>
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228 sbin/fsdb/fsdb.8
@@ -0,0 +1,228 @@
+.\" Copyright (c) 1995 John T. Kohl
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\" 3. The name of the author may not be used to endorse or promote products
+.\" derived from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+.\" DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+.\" INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+.\" ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\" $NetBSD: fsdb.8,v 1.1.1.1 1995/10/08 23:08:36 thorpej Exp $
+.\"
+.Dd September 14, 1995
+.Dt FSDB 8
+.Os NetBSD
+.Sh NAME
+.Nm fsdb
+.Nd FFS debugging/editing tool
+.Sh SYNOPSIS
+.Nm
+.Op Fl d
+.Fl f Ar fsname
+.Sh DESCRIPTION
+.Nm
+opens
+.Ar fsname
+(usually a raw disk partition) and runs a command loop
+allowing manipulation of the file system's inode data. You are prompted
+to enter a command with
+.Ic "fsdb (inum X)>"
+where
+.Va X
+is the currently selected i-number. The initial selected inode is the
+root of the filesystem (i-number 2).
+The command processor uses the
+.Xr libedit 3
+library, so you can use command line editing to reduce typing if desired.
+When you exit the command loop, the file system superblock is marked
+dirty and any buffered blocks are written to the file system.
+.Pp
+The
+.Fl d
+option enables additional debugging output (which comes primarily from
+.Xr fsck 8 -derived
+code).
+.Sh COMMANDS
+Besides the built-in
+.Xr libedit 3
+commands,
+.Nm
+supports these commands:
+.Pp
+.Bl -tag -width indent -compact
+.It Cm help
+Print out the list of accepted commands.
+.Pp
+.It Cm inode Ar i-number
+Select inode
+.Ar i-number
+as the new current inode.
+.Pp
+.It Cm back
+Revert to the previously current inode.
+.Pp
+.It Cm clri
+Clear the current inode.
+.Pp
+.It Cm lookup Ar name
+.It Cm cd Ar name
+Find
+.Ar name
+in the current directory and make its inode the current inode.
+.Ar Name
+may be a multi-component name or may begin with slash to indicate that
+the root inode should be used to start the lookup. If some component
+along the pathname is not found, the last valid directory encountered is
+left as the active inode.
+.br
+This command is valid only if the starting inode is a directory.
+.Pp
+.It Cm active
+.It Cm print
+Print out the active inode.
+.Pp
+.It Cm uplink
+Increment the active inode's link count.
+.Pp
+.It Cm downlink
+Decrement the active inode's link count.
+.Pp
+.It Cm linkcount Ar number
+Set the active inode's link count to
+.Ar number .
+.Pp
+.It Cm ls
+List the current inode's directory entries. This command is valid only
+if the current inode is a directory.
+.Pp
+.It Cm rm Ar name
+.It Cm del Ar name
+Remove the entry
+.Ar name
+from the current directory inode. This command is valid only
+if the current inode is a directory.
+.Pp
+.It Cm ln Ar ino Ar name
+Create a link to inode
+.Ar ino
+under the name
+.Ar name
+in the current directory inode. This command is valid only
+if the current inode is a directory.
+.Pp
+.It Cm chinum Ar dirslot Ar inum
+Change the i-number in directory entry
+.Ar dirslot
+to
+.Ar inum .
+.Pp
+.It Cm chname Ar dirslot Ar name
+Change the name in directory entry
+.Ar dirslot
+to
+.Ar name .
+This command cannot expand a directory entry. You can only rename an
+entry if the name will fit into the existing directory slot.
+.Pp
+.It Cm chtype Ar type
+Change the type of the current inode to
+.Ar type .
+.Ar type
+may be one of:
+.Em file ,
+.Em dir ,
+.Em socket ,
+or
+.Em fifo .
+.Pp
+.It Cm chmod Ar mode
+Change the mode bits of the current inode to
+.Ar mode .
+You cannot change the file type with this subcommand; use
+.Ic chtype
+to do that.
+.Pp
+.It Cm chflags Ar flags
+Change the file flags of the current inode to
+.Ar flags .
+.Pp
+.It Cm chown Ar uid
+Change the owner of the current inode to
+.Ar uid .
+.Pp
+.It Cm chgrp Ar gid
+Change the group of the current inode to
+.Ar gid .
+.Pp
+.It Cm chgen Ar gen
+Change the generation number of the current inode to
+.Ar gen .
+.Pp
+.It Cm mtime Ar time
+.It Cm ctime Ar time
+.It Cm atime Ar time
+Change the modification, change, or access time (respectively) on the
+current inode to
+.Ar time .
+.Ar Time
+should be in the format
+.Em YYYYMMDDHHMMSS[.nsec]
+where
+.Em nsec
+is an optional nanosecond specification. If no nanoseconds are specified, the
+.Va mtimensec ,
+.Va ctimensec ,
+or
+.Va atimensec
+field will be set to zero.
+.Pp
+.It Cm quit, Cm q, Cm exit, Em <EOF>
+Exit the program.
+.El
+.Sh SEE ALSO
+.Xr libedit 3 ,
+.Xr fs 5 ,
+.Xr fsck 8 ,
+.Xr clri 8 .
+.Sh BUGS
+Manipulation of ``short'' symlinks doesn't work (in particular, don't
+try changing a symlink's type).
+.br
+You must specify modes as numbers rather than symbolic names.
+.br
+There are a bunch of other things that you might want to do which
+.Nm
+doesn't implement.
+.br
+The
+.Xr libedit 3
+reference page is not yet written.
+.Sh HISTORY
+.Nm
+uses the source code for
+.Xr fsck 8
+to implement most of the file system manipulation code. The remainder of
+.Nm
+first appeared in NetBSD.
+.Sh WARNING
+Use this tool with extreme caution--you can damage an FFS file system
+beyond what
+.Xr fsck 8
+can repair.
View
850 sbin/fsdb/fsdb.c
@@ -0,0 +1,850 @@
+/* $NetBSD: fsdb.c,v 1.1.1.1 1995/10/08 23:08:36 thorpej Exp $ */
+/*
+ * Copyright (c) 1995 John T. Kohl
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef lint
+static char rcsid[] = "$NetBSD: fsdb.c,v 1.1.1.1 1995/10/08 23:08:36 thorpej Exp $";
+#endif /* not lint */
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <string.h>
+#include <ctype.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/param.h>
+#include <sys/time.h>
+#include <sys/mount.h>
+#include <ufs/ufs/dinode.h>
+#include <ufs/ufs/dir.h>
+#include <ufs/ffs/fs.h>
+#include <limits.h>
+#include <histedit.h>
+#include <pwd.h>
+#include <grp.h>
+
+#include "fsdb.h"
+#include "fsck.h"
+
+void usage __P((const char *));
+int cmdloop __P((const char *));
+
+void
+usage(const char *progname)
+{
+ errx(1, "usage: %s [-d] -f <fsname>", progname);
+}
+
+int returntosingle = 0;
+
+/*
+ * We suck in lots of fsck code, and just pick & choose the stuff we want.
+ *
+ * fsreadfd is set up to read from the file system, fswritefd to write to
+ * the file system.
+ */
+void
+main(int argc, char *argv[])
+{
+ int ch, rval;
+ char *fsys = NULL;
+ struct stat stb;
+
+ while (-1 != (ch = getopt(argc, argv, "f:d"))) {
+ switch (ch) {
+ case 'f':
+ fsys = optarg;
+ break;
+ case 'd':
+ debug++;
+ break;
+ default:
+ usage(argv[0]);
+ }
+ }
+ if (fsys == NULL)
+ usage(argv[0]);
+ if (!setup(fsys))
+ errx(1, "cannot set up file system `%s'", fsys);
+ printf("Editing file system `%s'\nLast Mounted on %s\n", fsys,
+ sblock.fs_fsmnt);
+ rval = cmdloop(argv[0]);
+ sblock.fs_clean = 0; /* mark it dirty */
+ sbdirty();
+ ckfini(0);
+ printf("*** FILE SYSTEM MARKED DIRTY\n");
+ printf("*** BE SURE TO RUN FSCK TO CLEAN UP ANY DAMAGE\n");
+ printf("*** IF IT WAS MOUNTED, RE-MOUNT WITH -u -o reload\n");
+ exit(rval);
+}
+
+#define CMDFUNC(func) int func __P((int argc, char *argv[]))
+#define CMDFUNCSTART(func) int func(int argc, char *argv[])
+
+CMDFUNC(helpfn);
+CMDFUNC(focus); /* focus on inode */
+CMDFUNC(active); /* print active inode */
+CMDFUNC(focusname); /* focus by name */
+CMDFUNC(zapi); /* clear inode */
+CMDFUNC(uplink); /* incr link */
+CMDFUNC(downlink); /* decr link */
+CMDFUNC(linkcount); /* set link count */
+CMDFUNC(quit); /* quit */
+CMDFUNC(ls); /* list directory */
+CMDFUNC(rm); /* remove name */
+CMDFUNC(ln); /* add name */
+CMDFUNC(newtype); /* change type */
+CMDFUNC(chmode); /* change mode */
+CMDFUNC(chaflags); /* change flags */
+CMDFUNC(chgen); /* change generation */
+CMDFUNC(chowner); /* change owner */
+CMDFUNC(chgroup); /* Change group */
+CMDFUNC(back); /* pop back to last ino */
+CMDFUNC(chmtime); /* Change mtime */
+CMDFUNC(chctime); /* Change ctime */
+CMDFUNC(chatime); /* Change atime */
+CMDFUNC(chinum); /* Change inode # of dirent */
+CMDFUNC(chname); /* Change dirname of dirent */
+
+struct cmdtable cmds[] = {
+ { "help", "Print out help", 1, 1, helpfn },
+ { "?", "Print out help", 1, 1, helpfn },
+ { "inode", "Set active inode to INUM", 2, 2, focus },
+ { "clri", "Clear inode INUM", 2, 2, zapi },
+ { "lookup", "Set active inode by looking up NAME", 2, 2, focusname },
+ { "cd", "Set active inode by looking up NAME", 2, 2, focusname },
+ { "back", "Go to previous active inode", 1, 1, back },
+ { "active", "Print active inode", 1, 1, active },
+ { "print", "Print active inode", 1, 1, active },
+ { "uplink", "Increment link count", 1, 1, uplink },
+ { "downlink", "Decrement link count", 1, 1, downlink },
+ { "linkcount", "Set link count to COUNT", 2, 2, linkcount },
+ { "ls", "List current inode as directory", 1, 1, ls },
+ { "rm", "Remove NAME from current inode directory", 2, 2, rm },
+ { "del", "Remove NAME from current inode directory", 2, 2, rm },
+ { "ln", "Hardlink INO into current inode directory as NAME", 3, 3, ln },
+ { "chinum", "Change dir entry number INDEX to INUM", 3, 3, chinum },
+ { "chname", "Change dir entry number INDEX to NAME", 3, 3, chname },
+ { "chtype", "Change type of current inode to TYPE", 2, 2, newtype },
+ { "chmod", "Change mode of current inode to MODE", 2, 2, chmode },
+ { "chown", "Change owner of current inode to OWNER", 2, 2, chowner },
+ { "chgrp", "Change group of current inode to GROUP", 2, 2, chgroup },
+ { "chflags", "Change flags of current inode to FLAGS", 2, 2, chaflags },
+ { "chgen", "Change generation number of current inode to GEN", 2, 2, chgen },
+ { "mtime", "Change mtime of current inode to MTIME", 2, 2, chmtime },
+ { "ctime", "Change ctime of current inode to CTIME", 2, 2, chctime },
+ { "atime", "Change atime of current inode to ATIME", 2, 2, chatime },
+ { "quit", "Exit", 1, 1, quit },
+ { "q", "Exit", 1, 1, quit },
+ { "exit", "Exit", 1, 1, quit },
+ { NULL, 0, 0, 0 },
+};
+
+int
+helpfn(int argc, char *argv[])
+{
+ register struct cmdtable *cmdtp;
+
+ printf("Commands are:\n%-10s %5s %5s %s\n",
+ "command", "min argc", "max argc", "what");
+
+ for (cmdtp = cmds; cmdtp->cmd; cmdtp++)
+ printf("%-10s %5u %5u %s\n",
+ cmdtp->cmd, cmdtp->minargc, cmdtp->maxargc, cmdtp->helptxt);
+ return 0;
+}
+
+char *
+prompt(EditLine *el)
+{
+ static char pstring[64];
+ snprintf(pstring, sizeof(pstring), "fsdb (inum: %d)> ", curinum);
+ return pstring;
+}
+
+
+int
+cmdloop(const char *progname)
+{
+ char *line;
+ const char *elline;
+ int cmd_argc, rval = 0, known;
+#define scratch known
+ char **cmd_argv;
+ struct cmdtable *cmdp;
+ History *hist;
+ EditLine *elptr;
+
+ curinode = ginode(ROOTINO);
+ curinum = ROOTINO;
+ printactive();
+
+ hist = history_init();
+ history(hist, H_EVENT, 100); /* 100 elt history buffer */
+
+ elptr = el_init(progname, stdin, stdout);
+ el_set(elptr, EL_EDITOR, "emacs");
+ el_set(elptr, EL_PROMPT, prompt);
+ el_set(elptr, EL_HIST, history, hist);
+ el_source(elptr, NULL);
+
+ while ((elline = el_gets(elptr, &scratch)) != NULL && scratch != 0) {
+ if (debug)
+ printf("command `%s'\n", line);
+
+ history(hist, H_ENTER, elline);
+
+ line = strdup(elline);
+ cmd_argv = crack(line, &cmd_argc);
+ /*
+ * el_parse returns -1 to signal that it's not been handled
+ * internally.
+ */
+ if (el_parse(elptr, cmd_argc, cmd_argv) != -1)
+ continue;
+ if (cmd_argc) {
+ known = 0;
+ for (cmdp = cmds; cmdp->cmd; cmdp++) {
+ if (!strcmp(cmdp->cmd, cmd_argv[0])) {
+ if (cmd_argc >= cmdp->minargc &&
+ cmd_argc <= cmdp->maxargc)
+ rval = (*cmdp->handler)(cmd_argc, cmd_argv);
+ else
+ rval = argcount(cmdp, cmd_argc, cmd_argv);
+ known = 1;
+ break;
+ }
+ }
+ if (!known)
+ warnx("unknown command `%s'", cmd_argv[0]), rval = 1;
+ } else
+ rval = 0;
+ free(line);
+ if (rval < 0)
+ return rval;
+ if (rval)
+ warnx("rval was %d", rval);
+ }
+ el_end(elptr);
+ history_end(hist);
+ return rval;
+}
+
+struct dinode *curinode;
+ino_t curinum, ocurrent;
+
+#define GETINUM(ac,inum) inum = strtoul(argv[ac], &cp, 0); \
+ if (inum < ROOTINO || inum > maxino || cp == argv[ac] || *cp != '\0' ) { \
+ printf("inode %d out of range; range is [%d,%d]\n", \
+ inum, ROOTINO, maxino); \
+ return 1; \
+ }
+
+/*
+ * Focus on given inode number
+ */
+CMDFUNCSTART(focus)
+{
+ ino_t inum;
+ char *cp;
+
+ GETINUM(1,inum);
+ curinode = ginode(inum);
+ ocurrent = curinum;
+ curinum = inum;
+ printactive();
+ return 0;
+}
+
+CMDFUNCSTART(back)
+{
+ curinum = ocurrent;
+ curinode = ginode(curinum);
+ printactive();
+ return 0;
+}
+
+CMDFUNCSTART(zapi)
+{
+ ino_t inum;
+ struct dinode *dp;
+ char *cp;
+
+ GETINUM(1,inum);
+ dp = ginode(inum);
+ clearinode(dp);
+ inodirty();
+ if (curinode) /* re-set after potential change */
+ curinode = ginode(curinum);
+ return 0;
+}
+
+CMDFUNCSTART(active)
+{
+ printactive();
+ return 0;
+}
+
+
+CMDFUNCSTART(quit)
+{
+ return -1;
+}
+
+CMDFUNCSTART(uplink)
+{
+ if (!checkactive())
+ return 1;
+ printf("inode %d link count now %d\n", curinum, ++curinode->di_nlink);
+ inodirty();
+ return 0;
+}
+
+CMDFUNCSTART(downlink)
+{
+ if (!checkactive())
+ return 1;
+ printf("inode %d link count now %d\n", curinum, --curinode->di_nlink);
+ inodirty();
+ return 0;
+}
+
+const char *typename[] = {
+ "unknown",
+ "fifo",
+ "char special",
+ "unregistered #3",
+ "directory",
+ "unregistered #5",
+ "blk special",
+ "unregistered #7",
+ "regular",
+ "unregistered #9",
+ "symlink",
+ "unregistered #11",
+ "socket",
+ "unregistered #13",
+ "whiteout",
+};
+
+int slot;
+
+int
+scannames(struct inodesc *idesc)
+{
+ register struct direct *dirp = idesc->id_dirp;
+
+ printf("slot %d ino %d reclen %d: %s, `%.*s'\n",
+ slot++, dirp->d_ino, dirp->d_reclen, typename[dirp->d_type],
+ dirp->d_namlen, dirp->d_name);
+ return (KEEPON);
+}
+
+CMDFUNCSTART(ls)
+{
+ struct inodesc idesc;
+ checkactivedir(); /* let it go on anyway */
+
+ slot = 0;
+ idesc.id_number = curinum;
+ idesc.id_func = scannames;
+ idesc.id_type = DATA;
+ idesc.id_fix = IGNORE;
+ ckinode(curinode, &idesc);
+ curinode = ginode(curinum);
+
+ return 0;
+}
+
+int findino __P((struct inodesc *idesc)); /* from fsck */
+static int dolookup __P((char *name));
+
+static int
+dolookup(char *name)
+{
+ struct inodesc idesc;
+
+ if (!checkactivedir())
+ return 0;
+ idesc.id_number = curinum;
+ idesc.id_func = findino;
+ idesc.id_name = name;
+ idesc.id_type = DATA;
+ idesc.id_fix = IGNORE;
+ if (ckinode(curinode, &idesc) & FOUND) {
+ curinum = idesc.id_parent;
+ curinode = ginode(curinum);
+ printactive();
+ return 1;
+ } else {
+ warnx("name `%s' not found in current inode directory", name);
+ return 0;
+ }
+}
+
+CMDFUNCSTART(focusname)
+{
+ char *p, *val;
+
+ if (!checkactive())
+ return 1;
+
+ ocurrent = curinum;
+
+ if (argv[1][0] == '/') {
+ curinum = ROOTINO;
+ curinode = ginode(ROOTINO);
+ } else {
+ if (!checkactivedir())
+ return 1;
+ }
+ for (p = argv[1]; p != NULL;) {
+ while ((val = strsep(&p, "/")) != NULL && *val == '\0');
+ if (val) {
+ printf("component `%s': ", val);
+ fflush(stdout);
+ if (!dolookup(val)) {
+ curinode = ginode(curinum);
+ return(1);
+ }
+ }
+ }
+ return 0;
+}
+
+CMDFUNCSTART(ln)
+{
+ ino_t inum;
+ struct dinode *dp;
+ int rval;
+ char *cp;
+
+ GETINUM(1,inum);
+
+ if (!checkactivedir())
+ return 1;
+ rval = makeentry(curinum, inum, argv[2]);
+ if (rval)
+ printf("Ino %d entered as `%s'\n", inum, argv[2]);
+ else
+ printf("could not enter name? weird.\n");
+ curinode = ginode(curinum);
+ return rval;
+}
+
+CMDFUNCSTART(rm)
+{
+ int rval;
+
+ if (!checkactivedir())
+ return 1;
+ rval = changeino(curinum, argv[1], 0);
+ if (rval & ALTERED) {
+ printf("Name `%s' removed\n", argv[1]);
+ return 0;
+ } else {
+ printf("could not remove name? weird.\n");
+ return 1;
+ }
+}
+
+long slotcount, desired;
+
+int
+chinumfunc(struct inodesc *idesc)
+{
+ register struct direct *dirp = idesc->id_dirp;
+
+ if (slotcount++ == desired) {
+ dirp->d_ino = idesc->id_parent;
+ return STOP|ALTERED|FOUND;
+ }
+ return KEEPON;
+}
+
+CMDFUNCSTART(chinum)
+{
+ int rval;
+ char *cp;
+ ino_t inum;
+ struct inodesc idesc;
+
+ slotcount = 0;
+ if (!checkactivedir())
+ return 1;
+ GETINUM(2,inum);
+
+ desired = strtol(argv[1], &cp, 0);
+ if (cp == argv[1] || *cp != '\0' || desired < 0) {
+ printf("invalid slot number `%s'\n", argv[1]);
+ return 1;
+ }
+
+ idesc.id_number = curinum;
+ idesc.id_func = chinumfunc;
+ idesc.id_fix = IGNORE;
+ idesc.id_type = DATA;
+ idesc.id_parent = inum; /* XXX convenient hiding place */
+
+ if (ckinode(curinode, &idesc) & FOUND)
+ return 0;
+ else {
+ warnx("no %sth slot in current directory", argv[1]);
+ return 1;
+ }
+}
+
+int
+chnamefunc(struct inodesc *idesc)
+{
+ register struct direct *dirp = idesc->id_dirp;
+ struct direct testdir;
+
+ if (slotcount++ == desired) {
+ /* will name fit? */
+ testdir.d_namlen = strlen(idesc->id_name);
+ if (DIRSIZ(NEWDIRFMT, &testdir) <= dirp->d_reclen) {
+ dirp->d_namlen = testdir.d_namlen;
+ strcpy(dirp->d_name, idesc->id_name);
+ return STOP|ALTERED|FOUND;
+ } else
+ return STOP|FOUND; /* won't fit, so give up */
+ }
+ return KEEPON;
+}
+
+CMDFUNCSTART(chname)
+{
+ int rval;
+ char *cp;
+ ino_t inum;
+ struct inodesc idesc;
+
+ slotcount = 0;
+ if (!checkactivedir())
+ return 1;
+
+ desired = strtoul(argv[1], &cp, 0);
+ if (cp == argv[1] || *cp != '\0') {
+ printf("invalid slot number `%s'\n", argv[1]);
+ return 1;
+ }
+
+ idesc.id_number = curinum;
+ idesc.id_func = chnamefunc;
+ idesc.id_fix = IGNORE;
+ idesc.id_type = DATA;
+ idesc.id_name = argv[2];
+
+ rval = ckinode(curinode, &idesc);
+ if ((rval & (FOUND|ALTERED)) == (FOUND|ALTERED))
+ return 0;
+ else if (rval & FOUND) {
+ warnx("new name `%s' does not fit in slot %s\n", argv[2], argv[1]);
+ return 1;
+ } else {
+ warnx("no %sth slot in current directory", argv[1]);
+ return 1;
+ }
+}
+
+struct typemap {
+ const char *typename;
+ int typebits;
+} typenamemap[] = {
+ {"file", IFREG},
+ {"dir", IFDIR},
+ {"socket", IFSOCK},
+ {"fifo", IFIFO},
+};
+
+CMDFUNCSTART(newtype)
+{
+ int rval = 1;
+ int type;
+ struct typemap *tp;
+
+ if (!checkactive())
+ return 1;
+ type = curinode->di_mode & IFMT;
+ for (tp = typenamemap;
+ tp < &typenamemap[sizeof(typemap)/sizeof(*typemap)];
+ tp++) {
+ if (!strcmp(argv[1], tp->typename)) {
+ printf("setting type to %s\n", tp->typename);
+ type = tp->typebits;
+ break;
+ }
+ }
+ if (tp == &typenamemap[sizeof(typemap)/sizeof(*typemap)]) {
+ warnx("type `%s' not known", argv[1]);
+ warnx("try one of `file', `dir', `socket', `fifo'");
+ return 1;
+ }
+ curinode->di_mode &= ~IFMT;
+ curinode->di_mode |= type;
+ inodirty();
+ printactive();
+ return 0;
+}
+
+CMDFUNCSTART(chmode)
+{
+ int rval = 1;
+ long modebits;
+ char *cp;
+
+ if (!checkactive())
+ return 1;
+
+ modebits = strtol(argv[1], &cp, 8);
+ if (cp == argv[1] || *cp != '\0' ) {
+ warnx("bad modebits `%s'", argv[1]);
+ return 1;
+ }
+
+ curinode->di_mode &= ~07777;
+ curinode->di_mode |= modebits;
+ inodirty();
+ printactive();
+ return rval;
+}
+
+CMDFUNCSTART(chaflags)
+{
+ int rval = 1;
+ u_long flags;
+ char *cp;
+
+ if (!checkactive())
+ return 1;
+
+ flags = strtoul(argv[1], &cp, 0);
+ if (cp == argv[1] || *cp != '\0' ) {
+ warnx("bad flags `%s'", argv[1]);
+ return 1;
+ }
+
+ if (flags > UINT_MAX) {
+ warnx("flags set beyond 32-bit range of field (%lx)\n", flags);
+ return(1);
+ }
+ curinode->di_flags = flags;
+ inodirty();
+ printactive();
+ return rval;
+}
+
+CMDFUNCSTART(chgen)
+{
+ int rval = 1;
+ long gen;
+ char *cp;
+
+ if (!checkactive())
+ return 1;
+
+ gen = strtol(argv[1], &cp, 0);
+ if (cp == argv[1] || *cp != '\0' ) {
+ warnx("bad gen `%s'", argv[1]);
+ return 1;
+ }
+
+ if (gen > INT_MAX || gen < INT_MIN) {
+ warnx("gen set beyond 32-bit range of field (%lx)\n", gen);
+ return(1);
+ }
+ curinode->di_gen = gen;
+ inodirty();
+ printactive();
+ return rval;
+}
+
+CMDFUNCSTART(linkcount)
+{
+ int rval = 1;
+ int lcnt;
+ char *cp;
+
+ if (!checkactive())
+ return 1;
+
+ lcnt = strtol(argv[1], &cp, 0);
+ if (cp == argv[1] || *cp != '\0' ) {
+ warnx("bad link count `%s'", argv[1]);
+ return 1;
+ }
+ if (lcnt > USHRT_MAX || lcnt < 0) {
+ warnx("max link count is %d\n", USHRT_MAX);
+ return 1;
+ }
+
+ curinode->di_nlink = lcnt;
+ inodirty();
+ printactive();
+ return rval;
+}
+
+CMDFUNCSTART(chowner)
+{
+ int rval = 1;
+ unsigned long uid;
+ char *cp;
+ struct passwd *pwd;
+
+ if (!checkactive())
+ return 1;
+
+ uid = strtoul(argv[1], &cp, 0);
+ if (cp == argv[1] || *cp != '\0' ) {
+ /* try looking up name */
+ if (pwd = getpwnam(argv[1])) {
+ uid = pwd->pw_uid;
+ } else {
+ warnx("bad uid `%s'", argv[1]);
+ return 1;
+ }
+ }
+
+ curinode->di_uid = uid;
+ inodirty();
+ printactive();
+ return rval;
+}
+
+CMDFUNCSTART(chgroup)
+{
+ int rval = 1;
+ unsigned long gid;
+ char *cp;
+ struct group *grp;
+
+ if (!checkactive())
+ return 1;
+
+ gid = strtoul(argv[1], &cp, 0);
+ if (cp == argv[1] || *cp != '\0' ) {
+ if (grp = getgrnam(argv[1])) {
+ gid = grp->gr_gid;
+ } else {
+ warnx("bad gid `%s'", argv[1]);
+ return 1;
+ }
+ }
+
+ curinode->di_gid = gid;
+ inodirty();
+ printactive();
+ return rval;
+}
+
+int
+dotime(char *name, int32_t *rsec, int32_t *rnsec)
+{
+ char *p, *val;
+ struct tm t;
+ int32_t sec;
+ int32_t nsec;
+ p = strchr(name, '.');
+ if (p) {
+ *p = '\0';
+ nsec = strtoul(++p, &val, 0);
+ if (val == p || *val != '\0' || nsec >= 1000000000 || nsec < 0) {
+ warnx("invalid nanoseconds");
+ goto badformat;
+ }
+ } else
+ nsec = 0;
+ if (strlen(name) != 14) {
+badformat:
+ warnx("date format: YYYYMMDDHHMMSS[.nsec]");
+ return 1;
+ }
+
+ for (p = name; *p; p++)
+ if (*p < '0' || *p > '9')
+ goto badformat;
+
+ p = name;
+#define VAL() ((*p++) - '0')
+ t.tm_year = VAL();
+ t.tm_year = VAL() + t.tm_year * 10;
+ t.tm_year = VAL() + t.tm_year * 10;
+ t.tm_year = VAL() + t.tm_year * 10 - 1900;
+ t.tm_mon = VAL();
+ t.tm_mon = VAL() + t.tm_mon * 10 - 1;
+ t.tm_mday = VAL();
+ t.tm_mday = VAL() + t.tm_mday * 10;
+ t.tm_hour = VAL();
+ t.tm_hour = VAL() + t.tm_hour * 10;
+ t.tm_min = VAL();
+ t.tm_min = VAL() + t.tm_min * 10;
+ t.tm_sec = VAL();
+ t.tm_sec = VAL() + t.tm_sec * 10;
+ t.tm_isdst = -1;
+
+ sec = mktime(&t);
+ if (sec == -1) {
+ warnx("date/time out of range");
+ return 1;
+ }
+ *rsec = sec;
+ *rnsec = nsec;
+ return 0;
+}
+
+CMDFUNCSTART(chmtime)
+{
+ if (dotime(argv[1], &curinode->di_ctime, &curinode->di_ctimensec))
+ return 1;
+ inodirty();
+ printactive();
+ return 0;
+}
+
+CMDFUNCSTART(chatime)
+{
+ if (dotime(argv[1], &curinode->di_ctime, &curinode->di_ctimensec))
+ return 1;
+ inodirty();
+ printactive();
+ return 0;
+}
+
+CMDFUNCSTART(chctime)
+{
+ if (dotime(argv[1], &curinode->di_ctime, &curinode->di_ctimensec))
+ return 1;
+ inodirty();
+ printactive();
+ return 0;
+}
View
57 sbin/fsdb/fsdb.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 1995 John T. Kohl
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+
+extern int bread __P((int fd, char *buf, daddr_t blk, long size));
+extern void bwrite __P((int fd, char *buf, daddr_t blk, long size));
+extern void rwerror __P((char *mesg, daddr_t blk));
+extern int reply __P((char *question));
+
+extern long dev_bsize;
+extern long secsize;
+extern int fsmodified;
+extern int fsfd;
+
+struct cmdtable {
+ const char *cmd;
+ const char *helptxt;
+ unsigned int minargc;
+ unsigned int maxargc;
+ int (*handler) __P((int argc, char *argv[]));
+};
+extern struct dinode *curinode;
+extern ino_t curinum;
+
+int argcount __P((struct cmdtable *cmdp, int argc, char *argv[]));
+char **crack __P((char *line, int *argc));
+void printstat __P((const char *cp, ino_t inum, struct dinode *dp));
+int printactive __P((void));
+int checkactive __P((void));
+int checkactivedir __P((void));
View
196 sbin/fsdb/fsdbutil.c
@@ -0,0 +1,196 @@
+/* $NetBSD: fsdbutil.c,v 1.1.1.1 1995/10/08 23:08:36 thorpej Exp $ */
+/*
+ * Copyright (c) 1995 John T. Kohl
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef lint
+static char rcsid[] = "$NetBSD: fsdbutil.c,v 1.1.1.1 1995/10/08 23:08:36 thorpej Exp $";
+#endif /* not lint */
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <string.h>
+#include <ctype.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/param.h>
+#include <sys/time.h>
+#include <sys/mount.h>
+#include <ufs/ufs/dinode.h>
+#include <ufs/ffs/fs.h>
+#include <grp.h>
+#include <pwd.h>
+
+#include "fsdb.h"
+#include "fsck.h"
+
+char **
+crack(char *line, int *argc)
+{
+ static char *argv[8];
+ int i;
+ char *p, *val;
+ for (p = line, i = 0; p != NULL && i < 8; i++) {
+ while ((val = strsep(&p, " \t\n")) != NULL && *val == '\0')
+ /**/;
+ if (val)
+ argv[i] = val;
+ else
+ break;
+ }
+ *argc = i;
+ return argv;
+}
+
+int
+argcount(struct cmdtable *cmdp, int argc, char *argv[])
+{
+ if (cmdp->minargc == cmdp->maxargc)
+ warnx("command `%s' takes %u arguments", cmdp->cmd, cmdp->minargc-1);
+ else
+ warnx("command `%s' takes from %u to %u arguments",
+ cmdp->cmd, cmdp->minargc-1, cmdp->maxargc-1);
+
+ warnx("usage: %s: %s", cmdp->cmd, cmdp->helptxt);
+ return 1;
+}
+
+void
+printstat(const char *cp, ino_t inum, struct dinode *dp)
+{
+ struct group *grp;
+ struct passwd *pw;
+ char *p;
+
+ printf("%s: ", cp);
+ switch (dp->di_mode & IFMT) {
+ case IFDIR:
+ puts("directory");
+ break;
+ case IFREG:
+ puts("regular file");
+ break;
+ case IFBLK:
+ printf("block special (%d,%d)",
+ major(dp->di_rdev), minor(dp->di_rdev));
+ break;
+ case IFCHR:
+ printf("character special (%d,%d)",
+ major(dp->di_rdev), minor(dp->di_rdev));
+ break;
+ case IFLNK:
+ fputs("symlink",stdout);
+ if (dp->di_size > 0 && dp->di_size < MAXSYMLINKLEN &&
+ dp->di_blocks == 0)
+ printf(" to `%.*s'\n", (int) dp->di_size, (char *)dp->di_shortlink);
+ else
+ putchar('\n');
+ break;
+ case IFSOCK:
+ puts("socket");
+ break;
+ case IFIFO:
+ puts("fifo");
+ break;
+ }
+ printf("I=%lu MODE=%o SIZE=%qu", inum, dp->di_mode, dp->di_size);
+ p = ctime(&dp->di_mtime);
+ printf("\n\tMTIME=%15.15s %4.4s [%d nsec]", &p[4], &p[20],
+ dp->di_mtimensec);
+ p = ctime(&dp->di_ctime);
+ printf("\n\tCTIME=%15.15s %4.4s [%d nsec]", &p[4], &p[20],
+ dp->di_ctimensec);
+ p = ctime(&dp->di_atime);
+ printf("\n\tATIME=%15.15s %4.4s [%d nsec]\n", &p[4], &p[20],
+ dp->di_atimensec);
+
+ if (pw = getpwuid(dp->di_uid))
+ printf("OWNER=%s ", pw->pw_name);
+ else
+ printf("OWNUID=%u ", dp->di_uid);
+ if (grp = getgrgid(dp->di_gid))
+ printf("GRP=%s ", grp->gr_name);
+ else
+ printf("GID=%u ", dp->di_gid);
+
+ printf("LINKCNT=%hd FLAGS=%#x BLKCNT=%x GEN=%x\n", dp->di_nlink, dp->di_flags,
+ dp->di_blocks, dp->di_gen);
+}
+
+int
+checkactive(void)
+{
+ if (!curinode) {
+ warnx("no current inode\n");
+ return 0;
+ }
+ return 1;
+}
+
+int
+checkactivedir(void)
+{
+ if (!curinode) {
+ warnx("no current inode\n");
+ return 0;
+ }
+ if ((curinode->di_mode & IFMT) != IFDIR) {
+ warnx("inode %d not a directory", curinum);
+ return 0;
+ }
+ return 1;
+}
+
+int
+printactive(void)
+{
+ if (!checkactive())
+ return 1;
+ switch (curinode->di_mode & IFMT) {
+ case IFDIR:
+ case IFREG:
+ case IFBLK:
+ case IFCHR:
+ case IFLNK:
+ case IFSOCK:
+ case IFIFO:
+ printstat("current inode", curinum, curinode);
+ break;
+ case 0:
+ printf("current inode %d: unallocated inode\n", curinum);
+ break;
+ default:
+ printf("current inode %d: screwy itype 0%o (mode 0%o)?\n",
+ curinum, curinode->di_mode & IFMT, curinode->di_mode);
+ break;
+ }
+ return 0;
+}

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