xref: /freebsd/tools/diag/prtblknos/main.c (revision 031beb4e239bfce798af17f5fe8dba8bcaf13d99)
1 /*
2  * Copyright (c) 1998, 2003, 2013, 2018 Marshall Kirk McKusick.
3  * All Rights Reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY MARSHALL KIRK MCKUSICK ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL MARSHALL KIRK MCKUSICK BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26 
27 #include <ufs/ffs/fs.h>
28 
29 #include <err.h>
30 #include <stdlib.h>
31 #include <stdio.h>
32 #include <sys/stat.h>
33 #include <libufs.h>
34 
35 union dinode {
36 	struct ufs1_dinode *dp1;
37 	struct ufs2_dinode *dp2;
38 };
39 
40 void prtblknos(struct fs *fs, union dinode *dp);
41 
42 struct uufsd disk;
43 
44 int
45 main(int argc, char *argv[])
46 {
47 	union dinodep dp;
48 	struct fs *fs;
49 	struct stat sb;
50 	struct statfs sfb;
51 	char *xargv[4];
52 	char ibuf[64];
53 	char *fsname, *filename;
54 	ino_t inonum;
55 
56 	filename = NULL;
57 	if (argc == 2) {
58 		filename = argv[1];
59 		if (lstat(filename, &sb) != 0)
60 			err(1, "stat(%s)", filename);
61 		if (statfs(filename, &sfb) != 0)
62 			err(1, "statfs(%s)", filename);
63 		xargv[0] = argv[0];
64 		xargv[1] = sfb.f_mntfromname;
65 		sprintf(ibuf, "%jd", (intmax_t)sb.st_ino);
66 		xargv[2] = ibuf;
67 		xargv[3] = NULL;
68 		argv = xargv;
69 		argc = 3;
70 	}
71 	if (argc < 3) {
72 		(void)fprintf(stderr, "%s\n%s\n",
73 		    "usage: prtblknos filename",
74 		    "       prtblknos filesystem inode ...");
75 		exit(1);
76 	}
77 
78 	fsname = *++argv;
79 
80 	/* get the superblock. */
81 	if (ufs_disk_fillout_blank(&disk, fsname) == -1 ||
82 	    sbfind(&disk, 0) == -1)
83 		err(1, "Cannot access file system superblock on %s", fsname);
84 	fs = (struct fs *)&disk.d_sb;
85 
86 	/* remaining arguments are inode numbers. */
87 	while (*++argv) {
88 		/* get the inode number. */
89 		if ((inonum = atoi(*argv)) <= 0 ||
90 		     inonum >= (ino_t)fs->fs_ipg * fs->fs_ncg)
91 			warnx("%s is not a valid inode number", *argv);
92 		if (filename == NULL)
93 			(void)printf("inode #%jd: ", (intmax_t)inonum);
94 		else
95 			(void)printf("%s (inode #%jd): ", filename,
96 			    (intmax_t)inonum);
97 
98 		if (getinode(&disk, &dp, inonum) < 0)
99 			warn("Read of inode %jd on %s failed: %s",
100 			    (intmax_t)inonum, fsname, disk.d_error);
101 
102 		prtblknos(fs, (union dinode *)dp.dp1);
103 	}
104 	exit(0);
105 }
106