1/*
2 * Copyright (c) 1980, 1986, 1993
3 *	The Regents of the University of California.  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 * 4. Neither the name of the University nor the names of its contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#if 0
31#ifndef lint
32static const char sccsid[] = "@(#)utilities.c	8.6 (Berkeley) 5/19/95";
33#endif /* not lint */
34#endif
35#include <sys/cdefs.h>
36__FBSDID("$FreeBSD$");
37
38#include <sys/param.h>
39#include <sys/types.h>
40#include <sys/stat.h>
41
42#include <ufs/ufs/dinode.h>
43#include <ufs/ufs/dir.h>
44#include <ufs/ffs/fs.h>
45
46#include <err.h>
47#include <errno.h>
48#include <string.h>
49#include <ctype.h>
50#include <fstab.h>
51#include <paths.h>
52#include <stdio.h>
53#include <stdlib.h>
54#include <unistd.h>
55
56#include "fsck.h"
57
58
59char *
60blockcheck(char *origname)
61{
62	struct stat stblock;
63	char *newname, *cp;
64	struct fstab *fsinfo;
65	int retried = 0, len;
66	static char device[MAXPATHLEN];
67
68	newname = origname;
69	if (stat(newname, &stblock) < 0) {
70		cp = strrchr(newname, '/');
71		if (cp == NULL) {
72			(void)snprintf(device, sizeof(device), "%s%s",
73				_PATH_DEV, newname);
74			newname = device;
75		}
76	}
77retry:
78	if (stat(newname, &stblock) < 0) {
79		printf("Can't stat %s: %s\n", newname, strerror(errno));
80		return (origname);
81	}
82	switch(stblock.st_mode & S_IFMT) {
83	case S_IFCHR:
84	case S_IFBLK:
85		return(newname);
86	case S_IFDIR:
87		if (retried)
88			break;
89
90		len = strlen(origname) - 1;
91		if (len > 0 && origname[len] == '/')
92			/* remove trailing slash */
93			origname[len] = '\0';
94		if ((fsinfo = getfsfile(origname)) == NULL) {
95			printf(
96			    "Can't resolve %s to character special device.\n",
97			    origname);
98			return (origname);
99		}
100		newname = fsinfo->fs_spec;
101		retried++;
102		goto retry;
103	}
104	/*
105	 * Not a block or character device, just return name and
106	 * let the user decide whether to use it.
107	 */
108	return (origname);
109}
110
111