1/* 2 * Copyright (c) 1999, 2004 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. Please obtain a copy of the License at 10 * http://www.opensource.apple.com/apsl/ and read it before using this 11 * file. 12 * 13 * The Original Code and all software distributed under the License are 14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 18 * Please see the License for the specific language governing rights and 19 * limitations under the License. 20 * 21 * @APPLE_LICENSE_HEADER_END@ 22 */ 23/* 24 * Copyright (c) 1989, 1993 25 * The Regents of the University of California. All rights reserved. 26 * 27 * Redistribution and use in source and binary forms, with or without 28 * modification, are permitted provided that the following conditions 29 * are met: 30 * 1. Redistributions of source code must retain the above copyright 31 * notice, this list of conditions and the following disclaimer. 32 * 2. Redistributions in binary form must reproduce the above copyright 33 * notice, this list of conditions and the following disclaimer in the 34 * documentation and/or other materials provided with the distribution. 35 * 3. All advertising materials mentioning features or use of this software 36 * must display the following acknowledgement: 37 * This product includes software developed by the University of 38 * California, Berkeley and its contributors. 39 * 4. Neither the name of the University nor the names of its contributors 40 * may be used to endorse or promote products derived from this software 41 * without specific prior written permission. 42 * 43 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 46 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 53 * SUCH DAMAGE. 54 */ 55 56 57#include <sys/types.h> 58#include <sys/stat.h> 59 60#include <db.h> 61#include <dirent.h> 62#include <err.h> 63#include <errno.h> 64#include <fcntl.h> 65#include <paths.h> 66#include <stdio.h> 67#include <string.h> 68#include <stdlib.h> 69 70char * 71devname_r(dev_t dev, mode_t type, char *buf, int len) 72{ 73 register DIR *dp; 74 register struct dirent *dirp; 75 struct stat sb; 76 char _buf[sizeof(_PATH_DEV) + MAXNAMLEN]; 77 78 strcpy(_buf, _PATH_DEV); 79 80 if ((dp = opendir(_PATH_DEV)) == NULL) 81 return (NULL); 82 83 while ( (dirp = readdir(dp)) ) { 84 bcopy(dirp->d_name, _buf + sizeof(_PATH_DEV) - 1, 85 dirp->d_namlen + 1); 86 if (lstat(_buf, &sb)) 87 continue; 88 if (dev != sb.st_rdev) 89 continue; 90 if (type != (sb.st_mode & S_IFMT)) 91 continue; 92 if (dirp->d_namlen + 1 > len) 93 break; 94 strcpy(buf, dirp->d_name); 95 (void)closedir(dp); 96 return (buf); 97 } 98 (void)closedir(dp); 99 return (NULL); 100} 101 102char * 103devname(dev_t dev, mode_t type) 104{ 105 static char *buf = NULL; 106 107 if( buf == NULL ) { 108 buf = malloc(MAXNAMLEN); 109 if( buf == NULL ) 110 return NULL; 111 } 112 113 return (devname_r(dev, type, buf, MAXNAMLEN)); 114} 115