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
|
/* libguestfs - the guestfsd daemon
* Copyright (C) 2009 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <dirent.h>
#include <sys/stat.h>
#include "daemon.h"
#include "actions.h"
static int
sfdisk (const char *device, int n, int cyls, int heads, int sectors,
char * const* const lines)
{
FILE *fp;
char buf[256];
int i;
IS_DEVICE (device, -1);
strcpy (buf, "/sbin/sfdisk --no-reread");
if (n > 0)
sprintf (buf + strlen (buf), " -N %d", n);
if (cyls)
sprintf (buf + strlen (buf), " -C %d", cyls);
if (heads)
sprintf (buf + strlen (buf), " -H %d", heads);
if (sectors)
sprintf (buf + strlen (buf), " -S %d", sectors);
/* Safe because of IS_DEVICE above: */
sprintf (buf + strlen (buf), " %s", device);
fp = popen (buf, "w");
if (fp == NULL) {
reply_with_perror (buf);
return -1;
}
for (i = 0; lines[i] != NULL; ++i) {
if (fprintf (fp, "%s\n", lines[i]) < 0) {
reply_with_perror (buf);
fclose (fp);
return -1;
}
}
if (fclose (fp) == EOF) {
reply_with_perror (buf);
fclose (fp);
return -1;
}
return 0;
}
int
do_sfdisk (const char *device, int cyls, int heads, int sectors,
char * const* const lines)
{
return sfdisk (device, 0, cyls, heads, sectors, lines);
}
int
do_sfdisk_N (const char *device, int n, int cyls, int heads, int sectors,
const char *line)
{
const char *lines[2] = { line, NULL };
return sfdisk (device, n, cyls, heads, sectors, lines);
}
static char *
sfdisk_flag (const char *device, const char *flag)
{
char *out, *err;
int r;
IS_DEVICE (device, NULL);
r = command (&out, &err, "/sbin/sfdisk", flag, device, NULL);
if (r == -1) {
reply_with_error ("sfdisk: %s: %s", device, err);
free (out);
free (err);
return NULL;
}
free (err);
return out; /* caller frees */
}
char *
do_sfdisk_l (const char *device)
{
return sfdisk_flag (device, "-l");
}
char *
do_sfdisk_kernel_geometry (const char *device)
{
return sfdisk_flag (device, "-g");
}
char *
do_sfdisk_disk_geometry (const char *device)
{
return sfdisk_flag (device, "-G");
}
|
