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
|
/* 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 "../src/guestfs_protocol.h"
#include "daemon.h"
#include "actions.h"
static char *
checksum (const char *csumtype, const char *path)
{
const char *program;
char *out, *err;
int r;
int len;
if (STRCASEEQ (csumtype, "crc"))
program = "cksum";
else if (STRCASEEQ (csumtype, "md5"))
program = "md5sum";
else if (STRCASEEQ (csumtype, "sha1"))
program = "sha1sum";
else if (STRCASEEQ (csumtype, "sha224"))
program = "sha224sum";
else if (STRCASEEQ (csumtype, "sha256"))
program = "sha256sum";
else if (STRCASEEQ (csumtype, "sha384"))
program = "sha384sum";
else if (STRCASEEQ (csumtype, "sha512"))
program = "sha512sum";
else {
reply_with_error ("unknown checksum type, expecting crc|md5|sha1|sha224|sha256|sha384|sha512");
return NULL;
}
r = command (&out, &err, program, path, NULL);
if (r == -1) {
reply_with_error ("%s: %s", program, err);
free (out);
free (err);
return NULL;
}
free (err);
/* Split it at the first whitespace. */
len = strcspn (out, " \t\n");
out[len] = '\0';
return out; /* Caller frees. */
}
char *
do_checksum (const char *csumtype, const char *path)
{
/* Make the path relative to /sysroot. */
char *buf = sysroot_path (path);
if (!buf) {
reply_with_perror ("malloc");
return NULL;
}
char *r = checksum (csumtype, buf);
free (buf);
return r;
}
char *
do_checksum_device (const char *csumtype, const char *device)
{
return checksum (csumtype, device);
}
|
