utilities.c revision 126345
11558Srgrimes/* 21558Srgrimes * Copyright (c) 1980, 1986, 1993 31558Srgrimes * The Regents of the University of California. All rights reserved. 41558Srgrimes * 51558Srgrimes * Redistribution and use in source and binary forms, with or without 61558Srgrimes * modification, are permitted provided that the following conditions 71558Srgrimes * are met: 81558Srgrimes * 1. Redistributions of source code must retain the above copyright 91558Srgrimes * notice, this list of conditions and the following disclaimer. 101558Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111558Srgrimes * notice, this list of conditions and the following disclaimer in the 121558Srgrimes * documentation and/or other materials provided with the distribution. 131558Srgrimes * 3. All advertising materials mentioning features or use of this software 141558Srgrimes * must display the following acknowledgement: 151558Srgrimes * This product includes software developed by the University of 161558Srgrimes * California, Berkeley and its contributors. 171558Srgrimes * 4. Neither the name of the University nor the names of its contributors 181558Srgrimes * may be used to endorse or promote products derived from this software 191558Srgrimes * without specific prior written permission. 201558Srgrimes * 211558Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221558Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231558Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241558Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251558Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261558Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271558Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281558Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291558Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301558Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311558Srgrimes * SUCH DAMAGE. 321558Srgrimes */ 331558Srgrimes 34114589Sobrien#if 0 351558Srgrimes#ifndef lint 3623675Speterstatic const char sccsid[] = "@(#)utilities.c 8.6 (Berkeley) 5/19/95"; 37114589Sobrien#endif /* not lint */ 3841477Sjulian#endif 39114589Sobrien#include <sys/cdefs.h> 40114589Sobrien__FBSDID("$FreeBSD: head/sbin/fsck_ffs/utilities.c 126345 2004-02-28 07:50:42Z scottl $"); 411558Srgrimes 421558Srgrimes#include <sys/param.h> 4366861Sadrian#include <sys/types.h> 4466861Sadrian#include <sys/stat.h> 4523675Speter 461558Srgrimes#include <ufs/ufs/dinode.h> 471558Srgrimes#include <ufs/ufs/dir.h> 481558Srgrimes#include <ufs/ffs/fs.h> 4923799Sbde 5023675Speter#include <err.h> 5166861Sadrian#include <errno.h> 5223799Sbde#include <string.h> 5366861Sadrian#include <ctype.h> 5466861Sadrian#include <fstab.h> 5575927Smckusick#include <paths.h> 5666861Sadrian#include <stdio.h> 5766861Sadrian#include <stdlib.h> 5866861Sadrian#include <unistd.h> 5923675Speter 601558Srgrimes#include "fsck.h" 611558Srgrimes 621558Srgrimes 6366861Sadrianchar * 6492839Simpblockcheck(char *origname) 6566861Sadrian{ 6686514Siedowse struct stat stblock; 6786514Siedowse char *newname, *cp; 6866861Sadrian struct fstab *fsinfo; 6966861Sadrian int retried = 0, len; 7075927Smckusick static char device[MAXPATHLEN]; 7166861Sadrian 7266861Sadrian newname = origname; 7375927Smckusick if (stat(newname, &stblock) < 0) { 7475927Smckusick cp = strrchr(newname, '/'); 7575927Smckusick if (cp == 0) { 7675927Smckusick (void)snprintf(device, sizeof(device), "%s%s", 7775927Smckusick _PATH_DEV, newname); 7875927Smckusick newname = device; 7975927Smckusick } 8075927Smckusick } 8166861Sadrianretry: 8266861Sadrian if (stat(newname, &stblock) < 0) { 8366861Sadrian printf("Can't stat %s: %s\n", newname, strerror(errno)); 8466861Sadrian return (origname); 8566861Sadrian } 8666861Sadrian switch(stblock.st_mode & S_IFMT) { 8766861Sadrian case S_IFCHR: 8866861Sadrian case S_IFBLK: 8966861Sadrian return(newname); 9066861Sadrian case S_IFDIR: 9166861Sadrian if (retried) 9266861Sadrian break; 9366861Sadrian 9466861Sadrian len = strlen(origname) - 1; 9566861Sadrian if (len > 0 && origname[len] == '/') 9666861Sadrian /* remove trailing slash */ 9766861Sadrian origname[len] = '\0'; 9866861Sadrian if ((fsinfo = getfsfile(origname)) == NULL) { 9970166Sphk printf( 10070166Sphk "Can't resolve %s to character special device.\n", 10166861Sadrian origname); 10275927Smckusick return (origname); 10366861Sadrian } 10466861Sadrian newname = fsinfo->fs_spec; 10566861Sadrian retried++; 10666861Sadrian goto retry; 10766861Sadrian } 10866861Sadrian /* 10966861Sadrian * Not a block or character device, just return name and 11066861Sadrian * let the user decide whether to use it. 11166861Sadrian */ 11266861Sadrian return (origname); 11366861Sadrian} 11470050Siedowse 11570050Siedowsevoid 116100935Sphkinfohandler(int sig __unused) 11770050Siedowse{ 11870050Siedowse got_siginfo = 1; 11970050Siedowse} 120126345Sscottl 121126345Sscottlvoid 122126345Sscottlalarmhandler(int sig __unused) 123126345Sscottl{ 124126345Sscottl got_sigalarm = 1; 125126345Sscottl} 126