1 /* $NetBSD: fsdbutil.c,v 1.24 2022/11/17 06:40:38 chs 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 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 #ifndef lint
34 __RCSID("$NetBSD: fsdbutil.c,v 1.24 2022/11/17 06:40:38 chs Exp $");
35 #endif /* not lint */
36
37 #include <sys/types.h>
38 #include <sys/stat.h>
39 #include <sys/param.h>
40 #include <sys/time.h>
41 #include <sys/mount.h>
42 #include <fcntl.h>
43 #include <grp.h>
44 #include <pwd.h>
45 #include <stdio.h>
46 #include <stdlib.h>
47 #include <string.h>
48 #include <time.h>
49 #include <unistd.h>
50 #include <err.h>
51
52 #include <ufs/ufs/dinode.h>
53 #include <ufs/ffs/fs.h>
54
55 #include "fsdb.h"
56 #include "fsck.h"
57
58 char **
crack(char * line,int * argc)59 crack(char *line, int *argc)
60 {
61 static char *argv[8];
62 int i;
63 char *p, *val;
64 for (p = line, i = 0; p != NULL && i < 8; i++) {
65 while ((val = strsep(&p, " \t\n")) != NULL && *val == '\0')
66 /**/ ;
67 if (val)
68 argv[i] = val;
69 else
70 break;
71 }
72 *argc = i;
73 return argv;
74 }
75
76 int
argcount(struct cmdtable * cmdp,int argc,char * argv[])77 argcount(struct cmdtable *cmdp, int argc, char *argv[])
78 {
79 if (cmdp->minargc == cmdp->maxargc)
80 warnx("command `%s' takes %u arguments", cmdp->cmd,
81 cmdp->minargc - 1);
82 else
83 warnx("command `%s' takes from %u to %u arguments",
84 cmdp->cmd, cmdp->minargc - 1, cmdp->maxargc - 1);
85
86 warnx("usage: %s: %s", cmdp->cmd, cmdp->helptxt);
87 return 1;
88 }
89
90 void
printstat(const char * cp,ino_t inum,union dinode * dp)91 printstat(const char *cp, ino_t inum, union dinode *dp)
92 {
93 struct group *grp;
94 struct passwd *pw;
95 time_t t;
96 char *p;
97 uint64_t size, blocks;
98 uint32_t extsize;
99 uint16_t mode;
100 uint32_t rdev;
101 uint32_t uid, gid;
102
103 size = iswap64(DIP(dp, size));
104 extsize = is_ufs2 ? iswap32(dp->dp2.di_extsize) : 0;
105 blocks = is_ufs2 ? iswap64(DIP(dp, blocks)) : iswap32(DIP(dp, blocks));
106 mode = iswap16(DIP(dp, mode));
107 rdev = iswap32(DIP(dp, rdev));
108
109 printf("%s: ", cp);
110 switch (mode & IFMT) {
111 case IFDIR:
112 puts("directory");
113 break;
114 case IFREG:
115 puts("regular file");
116 break;
117 case IFBLK:
118 printf("block special (%llu,%llu)",
119 (unsigned long long)major(rdev),
120 (unsigned long long)minor(rdev));
121 break;
122 case IFCHR:
123 printf("character special (%llu,%llu)",
124 (unsigned long long)major(rdev),
125 (unsigned long long)minor(rdev));
126 break;
127 case IFLNK:
128 fputs("symlink", stdout);
129 if (size > 0 && size < (uint64_t)sblock->fs_maxsymlinklen &&
130 DIP(dp, blocks) == 0) {
131 p = is_ufs2 ? (char *)dp->dp2.di_db :
132 (char *)dp->dp1.di_db;
133 printf(" to `%.*s'\n", (int)size, p);
134 } else
135 putchar('\n');
136 break;
137 case IFSOCK:
138 puts("socket");
139 break;
140 case IFIFO:
141 puts("fifo");
142 break;
143 }
144 printf("I=%llu MODE=%o SIZE=%llu EXTSIZE=%u", (unsigned long long)inum,
145 mode, (unsigned long long)size, extsize);
146 t = is_ufs2 ? iswap64(dp->dp2.di_mtime) : iswap32(dp->dp1.di_mtime);
147 p = ctime(&t);
148 printf("\n\t MTIME=%15.15s %4.4s [%d nsec]", &p[4], &p[20],
149 iswap32(DIP(dp, mtimensec)));
150 t = is_ufs2 ? iswap64(dp->dp2.di_ctime) : iswap32(dp->dp1.di_ctime);
151 p = ctime(&t);
152 printf("\n\t CTIME=%15.15s %4.4s [%d nsec]", &p[4], &p[20],
153 iswap32(DIP(dp, ctimensec)));
154 t = is_ufs2 ? iswap64(dp->dp2.di_atime) : iswap32(dp->dp1.di_atime);
155 p = ctime(&t);
156 printf("\n\t ATIME=%15.15s %4.4s [%d nsec]", &p[4], &p[20],
157 iswap32(DIP(dp,atimensec)));
158 if (is_ufs2) {
159 t = iswap64(dp->dp2.di_birthtime);
160 p = ctime(&t);
161 printf("\n\tBIRTHTIME=%15.15s %4.4s [%d nsec]\n", &p[4], &p[20],
162 iswap32(dp->dp2.di_birthnsec));
163 } else {
164 printf("\n");
165 }
166
167 if (!is_ufs2 && sblock->fs_old_inodefmt < FS_44INODEFMT)
168 uid = iswap16(dp->dp1.di_ouid);
169 else
170 uid = iswap32(DIP(dp, uid));
171 if ((pw = getpwuid(uid)) != NULL)
172 printf("OWNER=%s ", pw->pw_name);
173 else
174 printf("OWNUID=%u ", uid);
175 if (!is_ufs2 && sblock->fs_old_inodefmt < FS_44INODEFMT)
176 gid = iswap16(dp->dp1.di_ogid);
177 else
178 gid = iswap32(DIP(dp, gid));
179 if ((grp = getgrgid(gid)) != NULL)
180 printf("GRP=%s ", grp->gr_name);
181 else
182 printf("GID=%u ", gid);
183
184 printf("LINKCNT=%hd FLAGS=0x%x BLKCNT=0x%llx GEN=0x%x\n",
185 iswap16(DIP(dp, nlink)),
186 iswap32(DIP(dp, flags)), (unsigned long long)blocks,
187 iswap32(DIP(dp, gen)));
188 }
189
190 int
checkactive(void)191 checkactive(void)
192 {
193 if (!curinode) {
194 warnx("no current inode");
195 return 0;
196 }
197 return 1;
198 }
199
200 int
checkactivedir(void)201 checkactivedir(void)
202 {
203 if (!curinode) {
204 warnx("no current inode");
205 return 0;
206 }
207 if ((iswap16(DIP(curinode, mode)) & IFMT) != IFDIR) {
208 warnx("inode %llu not a directory",
209 (unsigned long long)curinum);
210 return 0;
211 }
212 return 1;
213 }
214
215 int
printactive(void)216 printactive(void)
217 {
218 uint16_t mode;
219
220 if (!checkactive())
221 return 1;
222 mode = iswap16(DIP(curinode, mode));
223 switch (mode & IFMT) {
224 case IFDIR:
225 case IFREG:
226 case IFBLK:
227 case IFCHR:
228 case IFLNK:
229 case IFSOCK:
230 case IFIFO:
231 printstat("current inode", curinum, curinode);
232 break;
233 case 0:
234 printf("current inode %llu: unallocated inode\n",
235 (unsigned long long)curinum);
236 break;
237 default:
238 printf("current inode %llu: screwy itype 0%o (mode 0%o)?\n",
239 (unsigned long long)curinum, mode & IFMT, mode);
240 break;
241 }
242 return 0;
243 }
244