summaryrefslogtreecommitdiffstats
path: root/usr.sbin/sysinstall/cdrom.c
blob: 3152bf0fd4a74130bf06e632b8c35b57ecef96aa (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
/*
 * The new sysinstall program.
 *
 * This is probably the last attempt in the `sysinstall' line, the next
 * generation being slated to essentially a complete rewrite.
 *
 * $Id: media_strategy.c,v 1.28 1995/05/26 20:30:59 jkh Exp $
 *
 * Copyright (c) 1995
 *	Jordan Hubbard.  All rights reserved.
 * Copyright (c) 1995
 * 	Gary J Palmer. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer, 
 *    verbatim and that no modifications are made prior to this 
 *    point in the file.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by Jordan Hubbard
 *	for the FreeBSD Project.
 * 4. The name of Jordan Hubbard or the FreeBSD project may not be used to
 *    endorse or promote products derived from this software without specific
 *    prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL JORDAN HUBBARD OR HIS PETS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 */

/*
 * These routines deal with getting things off of floppy media, though
 * with one exception:  genericGetDist() is actually used from lots of places
 * since it can think of the world as just "one big floppy" too if that's
 * appropriate.
 */

#include "sysinstall.h"
#include <sys/stat.h>
#include <sys/errno.h>
#include <sys/param.h>
#include <sys/wait.h>
#include <unistd.h>
#include <grp.h>

#define CD9660
#include <sys/mount.h>
#undef CD9660

static Boolean cdromMounted;

Boolean
mediaInitCDROM(Device *dev)
{
    struct iso_args	args;
    struct stat		sb;

    if (cdromMounted)
	return TRUE;

    if (Mkdir("/cdrom", NULL))
	return FALSE;

    args.fspec = dev->devname;
    args.flags = 0;

    if (mount(MOUNT_CD9660, "/cdrom", MNT_RDONLY, (caddr_t) &args) == -1) {
	msgConfirm("Error mounting %s on /cdrom: %s (%u)\n", dev, strerror(errno), errno);
	return FALSE;
    }

    /* Do a very simple check to see if this looks roughly like a 2.0.5 CDROM
       Unfortunately FreeBSD won't let us read the ``label'' AFAIK, which is one
       sure way of telling the disc version :-( */
    if (stat("/cdrom/dists", &sb)) {
	if (errno == ENOENT) {
	    msgConfirm("Couldn't locate the directory `dists' on the CD.\nIs this a 2.0.5 CDROM?\n");
	    return FALSE;
	}
	else {
	    msgConfirm("Couldn't stat directory %s: %s", "/cdrom/dists", strerror(errno));
	    return FALSE;
	}
    }
    cdromMounted = TRUE;
    return TRUE;
}

int
mediaGetCDROM(char *dist, char *path)
{
    char		buf[PATH_MAX];
    Attribs		*dist_attr;
    int			retval;

    dist_attr = safe_malloc(sizeof(Attribs) * MAX_ATTRIBS);

    snprintf(buf, PATH_MAX, "/stand/info/%s.inf", dist);

    if (!access(buf, R_OK) && attr_parse(&dist_attr, buf) == 0) {
	msgConfirm("Cannot load information file for %s distribution!\nPlease verify that your media is valid and try again.", dist);
	free(dist_attr);
	return FALSE;
    }
   
    snprintf(buf, PATH_MAX, "/cdrom/%s%s", path ? path : "", dist);
    retval = genericGetDist(buf, dist_attr, FALSE);
    free(dist_attr);
    return retval;
}

void
mediaShutdownCDROM(Device *dev)
{
    extern int getDistpid;

    if (!cdromMounted)
	return;
    if (getDistpid) {
	int i, j;

	i = waitpid(getDistpid, &j, 0);
	if (i < 0 || WEXITSTATUS(j)) {
	    msgConfirm("Warning: Last extraction returned status code %d.", WEXITSTATUS(j));
	    getDistpid = 0;
	}
	getDistpid = 0;
    }
    msgDebug("Unmounting /cdrom\n");
    if (unmount("/cdrom", 0) != 0)
	msgConfirm("Could not unmount the CDROM: %s\n", strerror(errno));
    msgDebug("Unmount returned\n");
    cdromMounted = FALSE;
    return;
}
OpenPOWER on IntegriCloud