| | 1 | /*- |
| | 2 | * Copyright (c) 1998 Michael Smith <msmith@freebsd.org> |
| | 3 | * 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 | * |
| | 14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| | 15 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| | 16 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| | 17 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| | 18 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| | 19 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| | 20 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| | 21 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| | 22 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| | 23 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| | 24 | * SUCH DAMAGE. |
| | 25 | * |
| | 26 | * $FreeBSD: src/sys/boot/common/devopen.c,v 1.4 2003/08/25 23:30:41 obrien Exp $ |
| | 27 | * $DragonFly: src/sys/boot/common/devopen.c,v 1.3 2003/11/10 06:08:31 dillon Exp $ |
| | 28 | */ |
| | 29 | |
| | 30 | #include <stand.h> |
| | 31 | #include <string.h> |
| | 32 | |
| | 33 | #include "bootstrap.h" |
| | 34 | |
| | 35 | int |
| | 36 | devopen(struct open_file *f, const char *fname, const char **file) |
| | 37 | { |
| | 38 | struct devdesc *dev; |
| | 39 | int result; |
| | 40 | |
| | 41 | if ((result = archsw.arch_getdev((void *)&dev, fname, file)) == 0) { /* get the device */ |
| | 42 | /* point to device-specific data so that device open can use it */ |
| | 43 | f->f_devdata = dev; |
| | 44 | if ((result = dev->d_dev->dv_open(f, dev)) == 0) { /* try to open it */ |
| | 45 | /* reference the devsw entry from the open_file structure */ |
| | 46 | f->f_dev = dev->d_dev; |
| | 47 | } else { |
| | 48 | free(dev); /* release the device descriptor */ |
| | 49 | } |
| | 50 | } |
| | 51 | return(result); |
| | 52 | } |
| | 53 | |
| | 54 | int |
| | 55 | devclose(struct open_file *f) |
| | 56 | { |
| | 57 | if (f->f_devdata != NULL) { |
| | 58 | free(f->f_devdata); |
| | 59 | f->f_devdata = NULL; |
| | 60 | } |
| | 61 | return(0); |
| | 62 | } |
projects / dragonfly.git / blame_incremental