1 /* $NetBSD: geom.c,v 1.1 2014/07/26 19:30:44 dholland Exp $ */ 2 3 /* 4 * Copyright (c) 1995, 1997 Jason R. Thorpe. 5 * 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed for the NetBSD Project 18 * by Jason R. Thorpe. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 /* Modified by Philip A. Nelson for use in sysinst. */ 36 37 #include <sys/param.h> 38 #include <sys/disklabel.h> 39 #include <sys/ioctl.h> 40 #include <fcntl.h> 41 #include <unistd.h> 42 #include <util.h> 43 #include <errno.h> 44 45 #include "defs.h" 46 47 static int 48 get_label(const char *disk, struct disklabel *l, unsigned long cmd) 49 { 50 char diskpath[MAXPATHLEN]; 51 int fd; 52 int sv_errno; 53 54 /* Open the disk. */ 55 fd = opendisk(disk, O_RDONLY, diskpath, sizeof(diskpath), 0); 56 if (fd < 0) 57 return 0; 58 59 if (ioctl(fd, cmd, l) < 0) { 60 sv_errno = errno; 61 (void)close(fd); 62 errno = sv_errno; 63 return 0; 64 } 65 (void)close(fd); 66 return 1; 67 } 68 69 int 70 get_geom(const char *disk, struct disklabel *l) 71 { 72 73 return get_label(disk, l, DIOCGDEFLABEL); 74 } 75 76 int 77 get_real_geom(const char *disk, struct disklabel *l) 78 { 79 80 return get_label(disk, l, DIOCGDINFO); 81 } 82