1*ca987d46SWarner Losh /*- 2*ca987d46SWarner Losh * Copyright (c) 1998 Michael Smith <msmith@freebsd.org> 3*ca987d46SWarner Losh * All rights reserved. 4*ca987d46SWarner Losh * 5*ca987d46SWarner Losh * Redistribution and use in source and binary forms, with or without 6*ca987d46SWarner Losh * modification, are permitted provided that the following conditions 7*ca987d46SWarner Losh * are met: 8*ca987d46SWarner Losh * 1. Redistributions of source code must retain the above copyright 9*ca987d46SWarner Losh * notice, this list of conditions and the following disclaimer. 10*ca987d46SWarner Losh * 2. Redistributions in binary form must reproduce the above copyright 11*ca987d46SWarner Losh * notice, this list of conditions and the following disclaimer in the 12*ca987d46SWarner Losh * documentation and/or other materials provided with the distribution. 13*ca987d46SWarner Losh * 14*ca987d46SWarner Losh * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15*ca987d46SWarner Losh * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16*ca987d46SWarner Losh * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17*ca987d46SWarner Losh * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18*ca987d46SWarner Losh * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19*ca987d46SWarner Losh * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20*ca987d46SWarner Losh * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21*ca987d46SWarner Losh * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22*ca987d46SWarner Losh * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23*ca987d46SWarner Losh * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24*ca987d46SWarner Losh * SUCH DAMAGE. 25*ca987d46SWarner Losh */ 26*ca987d46SWarner Losh 27*ca987d46SWarner Losh #include <sys/cdefs.h> 28*ca987d46SWarner Losh __FBSDID("$FreeBSD$"); 29*ca987d46SWarner Losh 30*ca987d46SWarner Losh #include <stand.h> 31*ca987d46SWarner Losh #include <string.h> 32*ca987d46SWarner Losh 33*ca987d46SWarner Losh #include "bootstrap.h" 34*ca987d46SWarner Losh 35*ca987d46SWarner Losh int 36*ca987d46SWarner Losh devopen(struct open_file *f, const char *fname, const char **file) 37*ca987d46SWarner Losh { 38*ca987d46SWarner Losh struct devdesc *dev; 39*ca987d46SWarner Losh int result; 40*ca987d46SWarner Losh 41*ca987d46SWarner Losh result = archsw.arch_getdev((void **)&dev, fname, file); 42*ca987d46SWarner Losh if (result) 43*ca987d46SWarner Losh return (result); 44*ca987d46SWarner Losh 45*ca987d46SWarner Losh /* point to device-specific data so that device open can use it */ 46*ca987d46SWarner Losh f->f_devdata = dev; 47*ca987d46SWarner Losh result = dev->d_dev->dv_open(f, dev); 48*ca987d46SWarner Losh if (result != 0) { 49*ca987d46SWarner Losh f->f_devdata = NULL; 50*ca987d46SWarner Losh free(dev); 51*ca987d46SWarner Losh return (result); 52*ca987d46SWarner Losh } 53*ca987d46SWarner Losh 54*ca987d46SWarner Losh /* reference the devsw entry from the open_file structure */ 55*ca987d46SWarner Losh f->f_dev = dev->d_dev; 56*ca987d46SWarner Losh return (0); 57*ca987d46SWarner Losh } 58*ca987d46SWarner Losh 59*ca987d46SWarner Losh int 60*ca987d46SWarner Losh devclose(struct open_file *f) 61*ca987d46SWarner Losh { 62*ca987d46SWarner Losh 63*ca987d46SWarner Losh if (f->f_devdata != NULL) { 64*ca987d46SWarner Losh free(f->f_devdata); 65*ca987d46SWarner Losh } 66*ca987d46SWarner Losh return (0); 67*ca987d46SWarner Losh } 68