Home | History | Annotate | Line # | Download | only in fsdb
fsdbutil.c revision 1.14
      1 /*	$NetBSD: fsdbutil.c,v 1.14 2004/01/03 19:57:42 dbj Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1996 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by John T. Kohl.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/cdefs.h>
     40 #ifndef lint
     41 __RCSID("$NetBSD: fsdbutil.c,v 1.14 2004/01/03 19:57:42 dbj Exp $");
     42 #endif /* not lint */
     43 
     44 #include <sys/types.h>
     45 #include <sys/stat.h>
     46 #include <sys/param.h>
     47 #include <sys/time.h>
     48 #include <sys/mount.h>
     49 #include <ctype.h>
     50 #include <fcntl.h>
     51 #include <grp.h>
     52 #include <pwd.h>
     53 #include <stdio.h>
     54 #include <stdlib.h>
     55 #include <string.h>
     56 #include <time.h>
     57 #include <unistd.h>
     58 #include <err.h>
     59 
     60 #include <ufs/ufs/dinode.h>
     61 #include <ufs/ffs/fs.h>
     62 
     63 #include "fsdb.h"
     64 #include "fsck.h"
     65 
     66 char  **
     67 crack(line, argc)
     68 	char   *line;
     69 	int    *argc;
     70 {
     71 	static char *argv[8];
     72 	int     i;
     73 	char   *p, *val;
     74 	for (p = line, i = 0; p != NULL && i < 8; i++) {
     75 		while ((val = strsep(&p, " \t\n")) != NULL && *val == '\0')
     76 			 /**/ ;
     77 		if (val)
     78 			argv[i] = val;
     79 		else
     80 			break;
     81 	}
     82 	*argc = i;
     83 	return argv;
     84 }
     85 
     86 int
     87 argcount(cmdp, argc, argv)
     88 	struct cmdtable *cmdp;
     89 	int     argc;
     90 	char   *argv[];
     91 {
     92 	if (cmdp->minargc == cmdp->maxargc)
     93 		warnx("command `%s' takes %u arguments", cmdp->cmd,
     94 		    cmdp->minargc - 1);
     95 	else
     96 		warnx("command `%s' takes from %u to %u arguments",
     97 		    cmdp->cmd, cmdp->minargc - 1, cmdp->maxargc - 1);
     98 
     99 	warnx("usage: %s: %s", cmdp->cmd, cmdp->helptxt);
    100 	return 1;
    101 }
    102 
    103 void
    104 printstat(cp, inum, dp)
    105 	const char *cp;
    106 	ino_t   inum;
    107 	union dinode *dp;
    108 {
    109 	struct group *grp;
    110 	struct passwd *pw;
    111 	time_t  t;
    112 	char   *p;
    113 	uint64_t size, blocks;
    114 	uint16_t mode;
    115 	uint32_t rdev;
    116 	uint32_t uid, gid;
    117 
    118 	size = iswap64(DIP(dp, size));
    119 	blocks = is_ufs2 ? iswap64(DIP(dp, blocks)) : iswap32(DIP(dp, blocks));
    120 	mode = iswap16(DIP(dp, mode));
    121 	rdev = iswap32(DIP(dp, rdev));
    122 
    123 	printf("%s: ", cp);
    124 	switch (mode & IFMT) {
    125 	case IFDIR:
    126 		puts("directory");
    127 		break;
    128 	case IFREG:
    129 		puts("regular file");
    130 		break;
    131 	case IFBLK:
    132 		printf("block special (%d,%d)", major(rdev), minor(rdev));
    133 		break;
    134 	case IFCHR:
    135 		printf("character special (%d,%d)", major(rdev), minor(rdev));
    136 		break;
    137 	case IFLNK:
    138 		fputs("symlink", stdout);
    139 		if (size > 0 && size < sblock->fs_maxsymlinklen &&
    140 		    DIP(dp, blocks) == 0) {
    141 			p = is_ufs2 ? (char *)dp->dp2.di_db :
    142 			    (char *)dp->dp1.di_db;
    143 			printf(" to `%.*s'\n", (int)size, p);
    144 		} else
    145 			putchar('\n');
    146 		break;
    147 	case IFSOCK:
    148 		puts("socket");
    149 		break;
    150 	case IFIFO:
    151 		puts("fifo");
    152 		break;
    153 	}
    154 	printf("I=%u MODE=%o SIZE=%llu", inum, mode,
    155 	    (unsigned long long)size);
    156 	t = is_ufs2 ? iswap64(dp->dp2.di_mtime) : iswap32(dp->dp1.di_mtime);
    157 	p = ctime(&t);
    158 	printf("\n\tMTIME=%15.15s %4.4s [%d nsec]", &p[4], &p[20],
    159 	    iswap32(DIP(dp, mtimensec)));
    160 	t = is_ufs2 ? iswap64(dp->dp2.di_ctime) : iswap32(dp->dp1.di_ctime);
    161 	p = ctime(&t);
    162 	printf("\n\tCTIME=%15.15s %4.4s [%d nsec]", &p[4], &p[20],
    163 	    iswap32(DIP(dp, ctimensec)));
    164 	t = is_ufs2 ? iswap64(dp->dp2.di_atime) : iswap32(dp->dp1.di_atime);
    165 	p = ctime(&t);
    166 	printf("\n\tATIME=%15.15s %4.4s [%d nsec]\n", &p[4], &p[20],
    167 	    iswap32(DIP(dp,atimensec)));
    168 
    169 	if (!is_ufs2 && sblock->fs_old_inodefmt < FS_44INODEFMT)
    170 		uid = iswap16(dp->dp1.di_ouid);
    171 	else
    172 		uid = iswap32(DIP(dp, uid));
    173 	if ((pw = getpwuid(uid)) != NULL)
    174 		printf("OWNER=%s ", pw->pw_name);
    175 	else
    176 		printf("OWNUID=%u ", uid);
    177 	if (!is_ufs2 && sblock->fs_old_inodefmt < FS_44INODEFMT)
    178 		gid = iswap16(dp->dp1.di_ogid);
    179 	else
    180 		gid = iswap32(DIP(dp, gid));
    181 	if ((grp = getgrgid(gid)) != NULL)
    182 		printf("GRP=%s ", grp->gr_name);
    183 	else
    184 		printf("GID=%u ", gid);
    185 
    186 	printf("LINKCNT=%hd FLAGS=0x%#x BLKCNT=0x%llx GEN=0x%x\n",
    187 		iswap16(DIP(dp, nlink)),
    188 	    iswap32(DIP(dp, flags)), (unsigned long long)blocks,
    189 		iswap32(DIP(dp, gen)));
    190 }
    191 
    192 int
    193 checkactive()
    194 {
    195 	if (!curinode) {
    196 		warnx("no current inode");
    197 		return 0;
    198 	}
    199 	return 1;
    200 }
    201 
    202 int
    203 checkactivedir()
    204 {
    205 	if (!curinode) {
    206 		warnx("no current inode");
    207 		return 0;
    208 	}
    209 	if ((iswap16(DIP(curinode, mode)) & IFMT) != IFDIR) {
    210 		warnx("inode %d not a directory", curinum);
    211 		return 0;
    212 	}
    213 	return 1;
    214 }
    215 
    216 int
    217 printactive()
    218 {
    219 	uint16_t mode;
    220 
    221 	if (!checkactive())
    222 		return 1;
    223 	mode = iswap16(DIP(curinode, mode));
    224 	switch (mode & IFMT) {
    225 	case IFDIR:
    226 	case IFREG:
    227 	case IFBLK:
    228 	case IFCHR:
    229 	case IFLNK:
    230 	case IFSOCK:
    231 	case IFIFO:
    232 		printstat("current inode", curinum, curinode);
    233 		break;
    234 	case 0:
    235 		printf("current inode %d: unallocated inode\n", curinum);
    236 		break;
    237 	default:
    238 		printf("current inode %d: screwy itype 0%o (mode 0%o)?\n",
    239 		    curinum, mode & IFMT, mode);
    240 		break;
    241 	}
    242 	return 0;
    243 }
    244