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
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
/* libguestfs - guestfish and guestmount shared option parsing
* Copyright (C) 2010-2011 Red Hat Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include "guestfs.h"
#include "options.h"
char
add_drives (struct drv *drv, char next_drive)
{
int r;
struct guestfs_add_drive_opts_argv ad_optargs;
if (next_drive > 'z') {
fprintf (stderr,
_("%s: too many drives added on the command line\n"),
program_name);
exit (EXIT_FAILURE);
}
if (drv) {
next_drive = add_drives (drv->next, next_drive);
if (asprintf (&drv->device, "/dev/sd%c", next_drive) == -1) {
perror ("asprintf");
exit (EXIT_FAILURE);
}
switch (drv->type) {
case drv_a:
ad_optargs.bitmask = 0;
if (read_only) {
ad_optargs.bitmask |= GUESTFS_ADD_DRIVE_OPTS_READONLY_BITMASK;
ad_optargs.readonly = 1;
}
if (drv->a.format) {
ad_optargs.bitmask |= GUESTFS_ADD_DRIVE_OPTS_FORMAT_BITMASK;
ad_optargs.format = drv->a.format;
}
r = guestfs_add_drive_opts_argv (g, drv->a.filename, &ad_optargs);
if (r == -1)
exit (EXIT_FAILURE);
drv->nr_drives = 1;
next_drive++;
break;
case drv_d:
r = add_libvirt_drives (drv->d.guest);
if (r == -1)
exit (EXIT_FAILURE);
drv->nr_drives = r;
next_drive += r;
break;
case drv_N:
/* guestfs_add_drive (ie. autodetecting) should be safe here
* since we have just created the prepared disk. At the moment
* it will always be "raw" but in a theoretical future we might
* create other formats.
*/
/* -N option is not affected by --ro */
r = guestfs_add_drive (g, drv->N.filename);
if (r == -1)
exit (EXIT_FAILURE);
drv->nr_drives = 1;
next_drive++;
break;
default: /* keep GCC happy */
abort ();
}
}
return next_drive;
}
static void display_mountpoints_on_failure (const char *mp_device);
/* List is built in reverse order, so mount them in reverse order. */
void
mount_mps (struct mp *mp)
{
int r;
if (mp) {
mount_mps (mp->next);
const char *options;
if (mp->options)
options = mp->options;
else if (read_only)
options = "ro";
else
options = "";
/* Don't use guestfs_mount here because that will default to mount
* options -o sync,noatime. For more information, see guestfs(3)
* section "LIBGUESTFS GOTCHAS".
*/
r = guestfs_mount_options (g, options, mp->device, mp->mountpoint);
if (r == -1) {
display_mountpoints_on_failure (mp->device);
exit (EXIT_FAILURE);
}
}
}
/* If the -m option fails on any command, display a useful error
* message listing the mountpoints.
*/
static void
display_mountpoints_on_failure (const char *mp_device)
{
char **fses;
size_t i;
fses = guestfs_list_filesystems (g);
if (fses == NULL)
return;
if (fses[0] == NULL) {
free (fses);
return;
}
fprintf (stderr,
_("%s: '%s' could not be mounted. Did you mean one of these?\n"),
program_name, mp_device);
for (i = 0; fses[i] != NULL; i += 2) {
fprintf (stderr, "\t%s (%s)\n", fses[i], fses[i+1]);
free (fses[i]);
free (fses[i+1]);
}
free (fses);
}
void
free_drives (struct drv *drv)
{
if (!drv) return;
free_drives (drv->next);
free (drv->device);
switch (drv->type) {
case drv_a: /* a.filename and a.format are optargs, don't free them */ break;
case drv_d: /* d.filename is optarg, don't free it */ break;
case drv_N:
free (drv->N.filename);
drv->N.data_free (drv->N.data);
break;
default: ; /* keep GCC happy */
}
free (drv);
}
void
free_mps (struct mp *mp)
{
if (!mp) return;
free_mps (mp->next);
/* The drive and mountpoint fields are not allocated
* from the heap, so we should not free them here.
*/
free (mp);
}
|
