1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1980, 1986, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/param.h> 33 #include <sys/types.h> 34 #include <sys/stat.h> 35 36 #include <ufs/ufs/dinode.h> 37 #include <ufs/ufs/dir.h> 38 #include <ufs/ffs/fs.h> 39 40 #include <errno.h> 41 #include <string.h> 42 #include <fstab.h> 43 #include <paths.h> 44 #include <stdio.h> 45 46 #include "fsck.h" 47 48 49 char * 50 blockcheck(char *origname) 51 { 52 struct stat stblock; 53 char *newname, *cp; 54 struct fstab *fsinfo; 55 int retried = 0, len; 56 static char device[MAXPATHLEN]; 57 58 newname = origname; 59 if (stat(newname, &stblock) < 0) { 60 cp = strrchr(newname, '/'); 61 if (cp == NULL) { 62 (void)snprintf(device, sizeof(device), "%s%s", 63 _PATH_DEV, newname); 64 newname = device; 65 } 66 } 67 retry: 68 if (stat(newname, &stblock) < 0) { 69 printf("Can't stat %s: %s\n", newname, strerror(errno)); 70 return (origname); 71 } 72 switch(stblock.st_mode & S_IFMT) { 73 case S_IFCHR: 74 case S_IFBLK: 75 return(newname); 76 case S_IFDIR: 77 if (retried) 78 break; 79 80 len = strlen(origname) - 1; 81 if (len > 0 && origname[len] == '/') 82 /* remove trailing slash */ 83 origname[len] = '\0'; 84 if ((fsinfo = getfsfile(origname)) == NULL) { 85 printf( 86 "Can't resolve %s to character special device.\n", 87 origname); 88 return (origname); 89 } 90 newname = fsinfo->fs_spec; 91 retried++; 92 goto retry; 93 } 94 /* 95 * Not a block or character device, just return name and 96 * let the user decide whether to use it. 97 */ 98 return (origname); 99 } 100 101