1ca987d46SWarner Losh /*-
2ca987d46SWarner Losh * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
3ca987d46SWarner Losh * All rights reserved.
4ca987d46SWarner Losh *
5ca987d46SWarner Losh * Redistribution and use in source and binary forms, with or without
6ca987d46SWarner Losh * modification, are permitted provided that the following conditions
7ca987d46SWarner Losh * are met:
8ca987d46SWarner Losh * 1. Redistributions of source code must retain the above copyright
9ca987d46SWarner Losh * notice, this list of conditions and the following disclaimer.
10ca987d46SWarner Losh * 2. Redistributions in binary form must reproduce the above copyright
11ca987d46SWarner Losh * notice, this list of conditions and the following disclaimer in the
12ca987d46SWarner Losh * documentation and/or other materials provided with the distribution.
13ca987d46SWarner Losh *
14ca987d46SWarner Losh * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15ca987d46SWarner Losh * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16ca987d46SWarner Losh * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17ca987d46SWarner Losh * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18ca987d46SWarner Losh * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19ca987d46SWarner Losh * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20ca987d46SWarner Losh * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21ca987d46SWarner Losh * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22ca987d46SWarner Losh * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23ca987d46SWarner Losh * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24ca987d46SWarner Losh * SUCH DAMAGE.
25ca987d46SWarner Losh */
26ca987d46SWarner Losh
27ca987d46SWarner Losh #include <stand.h>
28ca987d46SWarner Losh #include <string.h>
29ca987d46SWarner Losh
30ca987d46SWarner Losh #include "bootstrap.h"
31ca987d46SWarner Losh #include "disk.h"
32ca987d46SWarner Losh #include "libuserboot.h"
33ca987d46SWarner Losh
34ca987d46SWarner Losh /*
35ca987d46SWarner Losh * Point (dev) at an allocated device specifier for the device matching the
36ca987d46SWarner Losh * path in (devspec). If it contains an explicit device specification,
37ca987d46SWarner Losh * use that. If not, use the default device.
38ca987d46SWarner Losh */
39ca987d46SWarner Losh int
userboot_getdev(void ** vdev,const char * devspec,const char ** path)40ca987d46SWarner Losh userboot_getdev(void **vdev, const char *devspec, const char **path)
41ca987d46SWarner Losh {
4217276525SWarner Losh struct devdesc **dev = (struct devdesc **)vdev;
43ca987d46SWarner Losh int rv;
44ca987d46SWarner Losh
45ca987d46SWarner Losh /*
46ca987d46SWarner Losh * If it looks like this is just a path and no
47ca987d46SWarner Losh * device, go with the current device.
48ca987d46SWarner Losh */
49ca987d46SWarner Losh if ((devspec == NULL) ||
50ca987d46SWarner Losh (devspec[0] == '/') ||
51ca987d46SWarner Losh (strchr(devspec, ':') == NULL)) {
52ca987d46SWarner Losh
53*910de60aSWarner Losh rv = devparse(dev, getenv("currdev"), NULL);
545d5a6216SToomas Soome if (rv == 0 && path != NULL)
55ca987d46SWarner Losh *path = devspec;
56ca987d46SWarner Losh return (rv);
57ca987d46SWarner Losh }
58ca987d46SWarner Losh
59ca987d46SWarner Losh /*
60ca987d46SWarner Losh * Try to parse the device name off the beginning of the devspec
61ca987d46SWarner Losh */
62*910de60aSWarner Losh return (devparse(dev, devspec, path));
63ca987d46SWarner Losh }
64