xref: /freebsd/tools/diag/prtblknos/main.c (revision b00ab754)
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  * $FreeBSD$
27  */
28 
29 #include <ufs/ffs/fs.h>
30 
31 #include <err.h>
32 #include <stdlib.h>
33 #include <stdio.h>
34 #include <sys/stat.h>
35 #include <libufs.h>
36 
37 union dinode {
38 	struct ufs1_dinode *dp1;
39 	struct ufs2_dinode *dp2;
40 };
41 
42 void prtblknos(struct uufsd *disk, union dinode *dp);
43 
44 int
45 main(argc, argv)
46 	int argc;
47 	char *argv[];
48 {
49 	struct uufsd disk;
50 	union dinode *dp;
51 	struct fs *fs;
52 	struct stat sb;
53 	struct statfs sfb;
54 	char *xargv[4];
55 	char ibuf[64];
56 	char *fsname, *filename;
57 	ino_t inonum;
58 	int error;
59 
60 	filename = NULL;
61 	if (argc == 2) {
62 		filename = argv[1];
63 		if (lstat(filename, &sb) != 0)
64 			err(1, "stat(%s)", filename);
65 		if (statfs(filename, &sfb) != 0)
66 			err(1, "statfs(%s)", filename);
67 		xargv[0] = argv[0];
68 		xargv[1] = sfb.f_mntfromname;
69 		sprintf(ibuf, "%jd", (intmax_t)sb.st_ino);
70 		xargv[2] = ibuf;
71 		xargv[3] = NULL;
72 		argv = xargv;
73 		argc = 3;
74 	}
75 	if (argc < 3) {
76 		(void)fprintf(stderr, "%s\n%s\n",
77 		    "usage: prtblknos filename",
78 		    "       prtblknos filesystem inode ...");
79 		exit(1);
80 	}
81 
82 	fsname = *++argv;
83 
84 	/* get the superblock. */
85 	if ((error = ufs_disk_fillout(&disk, fsname)) < 0)
86 		err(1, "Cannot access file system superblock on %s", fsname);
87 	fs = (struct fs *)&disk.d_sb;
88 
89 	/* remaining arguments are inode numbers. */
90 	while (*++argv) {
91 		/* get the inode number. */
92 		if ((inonum = atoi(*argv)) <= 0 ||
93 		     inonum >= (ino_t)fs->fs_ipg * fs->fs_ncg)
94 			warnx("%s is not a valid inode number", *argv);
95 		if (filename == NULL)
96 			(void)printf("inode #%jd: ", (intmax_t)inonum);
97 		else
98 			(void)printf("%s (inode #%jd): ", filename,
99 			    (intmax_t)inonum);
100 
101 		if ((error = getino(&disk, (void **)&dp, inonum, NULL)) < 0)
102 			warn("Read of inode %jd on %s failed",
103 			    (intmax_t)inonum, fsname);
104 
105 		prtblknos(&disk, dp);
106 	}
107 	exit(0);
108 }
109