FreeBSD-5.3/sbin/fsdb/fsdbutil.c
/* $NetBSD: fsdbutil.c,v 1.2 1995/10/08 23:18:12 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 const char rcsid[] =
"$FreeBSD: src/sbin/fsdb/fsdbutil.c,v 1.18 2003/11/13 19:08:43 johan Exp $";
#endif /* not lint */
#include <sys/param.h>
#include <ctype.h>
#include <err.h>
#include <grp.h>
#include <pwd.h>
#include <stdint.h>
#include <string.h>
#include <time.h>
#include <timeconv.h>
#include <ufs/ufs/dinode.h>
#include <ufs/ffs/fs.h>
#include <sys/ioctl.h>
#include "fsdb.h"
#include "fsck.h"
static int charsperline(void);
static int printindir(ufs2_daddr_t blk, int level, char *bufp);
static void printblocks(ino_t inum, union dinode *dp);
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;
}
char **
recrack(char *line, int *argc, int argc_max)
{
static char *argv[8];
int i;
char *p, *val;
for (p = line, i = 0; p != NULL && i < 8 && i < argc_max - 1; i++) {
while ((val = strsep(&p, " \t\n")) != NULL && *val == '\0')
/**/;
if (val)
argv[i] = val;
else
break;
}
argv[i] = argv[i - 1] + strlen(argv[i - 1]) + 1;
argv[i][strcspn(argv[i], "\n")] = '\0';
*argc = i + 1;
return argv;
}
int
argcount(struct cmdtable *cmdp, int argc, char *argv[])
{
if (cmdp->minargc == cmdp->maxargc)
warnx("command `%s' takes %u arguments, got %u", cmdp->cmd,
cmdp->minargc-1, argc);
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, union dinode *dp)
{
struct group *grp;
struct passwd *pw;
ufs2_daddr_t blocks;
int64_t gen;
char *p;
time_t t;
printf("%s: ", cp);
switch (DIP(dp, di_mode) & IFMT) {
case IFDIR:
puts("directory");
break;
case IFREG:
puts("regular file");
break;
case IFBLK:
printf("block special (%d,%d)",
major(DIP(dp, di_rdev)), minor(DIP(dp, di_rdev)));
break;
case IFCHR:
printf("character special (%d,%d)",
major(DIP(dp, di_rdev)), minor(DIP(dp, di_rdev)));
break;
case IFLNK:
fputs("symlink",stdout);
if (DIP(dp, di_size) > 0 &&
DIP(dp, di_size) < sblock.fs_maxsymlinklen &&
DIP(dp, di_blocks) == 0) {
if (sblock.fs_magic == FS_UFS1_MAGIC)
p = (caddr_t)dp->dp1.di_db;
else
p = (caddr_t)dp->dp2.di_db;
printf(" to `%.*s'\n", (int) DIP(dp, di_size), p);
} else {
putchar('\n');
}
break;
case IFSOCK:
puts("socket");
break;
case IFIFO:
puts("fifo");
break;
}
printf("I=%lu MODE=%o SIZE=%ju", (u_long)inum, DIP(dp, di_mode),
(uintmax_t)DIP(dp, di_size));
if (sblock.fs_magic == FS_UFS1_MAGIC)
t = _time32_to_time(dp->dp1.di_mtime);
else
t = _time64_to_time(dp->dp2.di_mtime);
p = ctime(&t);
printf("\n\tMTIME=%15.15s %4.4s [%d nsec]", &p[4], &p[20],
DIP(dp, di_mtimensec));
if (sblock.fs_magic == FS_UFS1_MAGIC)
t = _time32_to_time(dp->dp1.di_ctime);
else
t = _time64_to_time(dp->dp2.di_ctime);
p = ctime(&t);
printf("\n\tCTIME=%15.15s %4.4s [%d nsec]", &p[4], &p[20],
DIP(dp, di_ctimensec));
if (sblock.fs_magic == FS_UFS1_MAGIC)
t = _time32_to_time(dp->dp1.di_atime);
else
t = _time64_to_time(dp->dp2.di_atime);
p = ctime(&t);
printf("\n\tATIME=%15.15s %4.4s [%d nsec]\n", &p[4], &p[20],
DIP(dp, di_atimensec));
if ((pw = getpwuid(DIP(dp, di_uid))))
printf("OWNER=%s ", pw->pw_name);
else
printf("OWNUID=%u ", DIP(dp, di_uid));
if ((grp = getgrgid(DIP(dp, di_gid))))
printf("GRP=%s ", grp->gr_name);
else
printf("GID=%u ", DIP(dp, di_gid));
blocks = DIP(dp, di_blocks);
gen = DIP(dp, di_gen);
printf("LINKCNT=%hd FLAGS=%#x BLKCNT=%jx GEN=%jx\n", DIP(dp, di_nlink),
DIP(dp, di_flags), (intmax_t)blocks, (intmax_t)gen);
}
/*
* Determine the number of characters in a
* single line.
*/
static int
charsperline(void)
{
int columns;
char *cp;
struct winsize ws;
columns = 0;
if (ioctl(0, TIOCGWINSZ, &ws) != -1)
columns = ws.ws_col;
if (columns == 0 && (cp = getenv("COLUMNS")))
columns = atoi(cp);
if (columns == 0)
columns = 80; /* last resort */
return (columns);
}
/*
* Recursively print a list of indirect blocks.
*/
static int
printindir(ufs2_daddr_t blk, int level, char *bufp)
{
struct bufarea buf, *bp;
char tempbuf[32]; /* enough to print an ufs2_daddr_t */
int i, j, cpl, charssofar;
ufs2_daddr_t blkno;
if (level == 0) {
/* for the final indirect level, don't use the cache */
bp = &buf;
bp->b_un.b_buf = bufp;
bp->b_prev = bp->b_next = bp;
initbarea(bp);
getblk(bp, blk, sblock.fs_bsize);
} else
bp = getdatablk(blk, sblock.fs_bsize);
cpl = charsperline();
for (i = charssofar = 0; i < NINDIR(&sblock); i++) {
if (sblock.fs_magic == FS_UFS1_MAGIC)
blkno = bp->b_un.b_indir1[i];
else
blkno = bp->b_un.b_indir2[i];
if (blkno == 0) {
if (level == 0)
putchar('\n');
return 0;
}
j = sprintf(tempbuf, "%jd", (intmax_t)blkno);
if (level == 0) {
charssofar += j;
if (charssofar >= cpl - 2) {
putchar('\n');
charssofar = j;
}
}
fputs(tempbuf, stdout);
if (level == 0) {
printf(", ");
charssofar += 2;
} else {
printf(" =>\n");
if (printindir(blkno, level - 1, bufp) == 0)
return 0;
}
}
if (level == 0)
putchar('\n');
return 1;
}
/*
* Print the block pointers for one inode.
*/
static void
printblocks(ino_t inum, union dinode *dp)
{
char *bufp;
int i, nfrags;
long ndb, offset;
ufs2_daddr_t blkno;
printf("Blocks for inode %d:\n", inum);
printf("Direct blocks:\n");
ndb = howmany(DIP(dp, di_size), sblock.fs_bsize);
for (i = 0; i < NDADDR; i++) {
if (DIP(dp, di_db[i]) == 0) {
putchar('\n');
return;
}
if (i > 0)
printf(", ");
blkno = DIP(dp, di_db[i]);
printf("%jd", (intmax_t)blkno);
if (--ndb == 0 && (offset = blkoff(&sblock, DIP(dp, di_size))) != 0) {
nfrags = numfrags(&sblock, fragroundup(&sblock, offset));
printf(" (%d frag%s)", nfrags, nfrags > 1? "s": "");
}
}
putchar('\n');
if (DIP(dp, di_ib[0]) == 0)
return;
bufp = malloc((unsigned int)sblock.fs_bsize);
if (bufp == 0)
errx(EEXIT, "cannot allocate indirect block buffer");
printf("Indirect blocks:\n");
for (i = 0; i < NIADDR; i++)
if (printindir(DIP(dp, di_ib[i]), i, bufp) == 0)
break;
free(bufp);
}
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 ((DIP(curinode, di_mode) & IFMT) != IFDIR) {
warnx("inode %d not a directory", curinum);
return 0;
}
return 1;
}
int
printactive(int doblocks)
{
if (!checkactive())
return 1;
switch (DIP(curinode, di_mode) & IFMT) {
case IFDIR:
case IFREG:
case IFBLK:
case IFCHR:
case IFLNK:
case IFSOCK:
case IFIFO:
if (doblocks)
printblocks(curinum, curinode);
else
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, DIP(curinode, di_mode) & IFMT, DIP(curinode, di_mode));
break;
}
return 0;
}