1 /*- 2 * Copyright (c) 1998 Michael Smith <msmith@freebsd.org> 3 * Copyright (c) 2006 Marcel Moolenaar 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 #include <stand.h> 30 #include <string.h> 31 #include <sys/disklabel.h> 32 #include <sys/param.h> 33 #include <bootstrap.h> 34 #include <disk.h> 35 36 #include <efi.h> 37 #include <efilib.h> 38 #include <efizfs.h> 39 40 /* 41 * Point (dev) at an allocated device specifier for the device matching the 42 * path in (devspec). If it contains an explicit device specification, 43 * use that. If not, use the default device. 44 */ 45 int 46 efi_getdev(void **vdev, const char *devspec, const char **path) 47 { 48 struct devdesc **dev = (struct devdesc **)vdev; 49 int rv; 50 51 /* 52 * If it looks like this is just a path and no device, then 53 * use the current device instead. 54 */ 55 if (devspec == NULL || *devspec == '/' || !strchr(devspec, ':')) { 56 rv = devparse(dev, getenv("currdev"), NULL); 57 if (rv == 0 && path != NULL) 58 *path = devspec; 59 return (rv); 60 } 61 62 return (devparse(dev, devspec, path)); 63 } 64