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
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
/*
** jcat
** The Sleuth Kit
**
** Brian Carrier [carrier <at> sleuthkit [dot] org]
** Copyright (c) 2006-2011 Brian Carrier, Basis Technology. All Rights reserved
** Copyright (c) 2004-2005 Brian Carrier. All rights reserved
**
**
** This software is distributed under the Common Public License 1.0
*/
#include "tsk/tsk_tools_i.h"
#include <locale.h>
#ifdef TSK_WIN32
#include <fcntl.h>
#endif
static TSK_TCHAR *progname;
/* usage - explain and terminate */
static void
usage()
{
TFPRINTF(stderr,
_TSK_T
("usage: %s [-f fstype] [-i imgtype] [-b dev_sector_size] [-o imgoffset] [-vV] image [images] [inode] blk\n"),
progname);
tsk_fprintf(stderr, "\tblk: The journal block to view\n");
tsk_fprintf(stderr,
"\tinode: The file system inode where the journal is located\n");
tsk_fprintf(stderr,
"\t-i imgtype: The format of the image file (use '-i list' for supported types)\n");
tsk_fprintf(stderr,
"\t-b dev_sector_size: The size (in bytes) of the device sectors\n");
tsk_fprintf(stderr,
"\t-f fstype: File system type (use '-f list' for supported types)\n");
tsk_fprintf(stderr,
"\t-o imgoffset: The offset of the file system in the image (in sectors)\n");
tsk_fprintf(stderr, "\t-v: verbose output to stderr\n");
tsk_fprintf(stderr, "\t-V: print version\n");
exit(1);
}
int
main(int argc, char **argv1)
{
TSK_IMG_TYPE_ENUM imgtype = TSK_IMG_TYPE_DETECT;
TSK_IMG_INFO *img;
TSK_OFF_T imgaddr = 0;
TSK_FS_TYPE_ENUM fstype = TSK_FS_TYPE_DETECT;
TSK_FS_INFO *fs;
TSK_INUM_T inum;
int ch;
TSK_DADDR_T blk;
TSK_TCHAR *cp;
TSK_TCHAR **argv;
unsigned int ssize = 0;
#ifdef TSK_WIN32
// On Windows, get the wide arguments (mingw doesn't support wmain)
argv = CommandLineToArgvW(GetCommandLineW(), &argc);
if (argv == NULL) {
fprintf(stderr, "Error getting wide arguments\n");
exit(1);
}
#else
argv = (TSK_TCHAR **) argv1;
#endif
progname = argv[0];
setlocale(LC_ALL, "");
while ((ch = GETOPT(argc, argv, _TSK_T("b:f:i:o:vV"))) > 0) {
switch (ch) {
case _TSK_T('?'):
default:
TFPRINTF(stderr, _TSK_T("Invalid argument: %s\n"),
argv[OPTIND]);
usage();
case _TSK_T('b'):
ssize = (unsigned int) TSTRTOUL(OPTARG, &cp, 0);
if (*cp || *cp == *OPTARG || ssize < 1) {
TFPRINTF(stderr,
_TSK_T
("invalid argument: sector size must be positive: %s\n"),
OPTARG);
usage();
}
break;
case _TSK_T('f'):
if (TSTRCMP(OPTARG, _TSK_T("list")) == 0) {
tsk_fs_type_print(stderr);
exit(1);
}
fstype = tsk_fs_type_toid(OPTARG);
if (fstype == TSK_FS_TYPE_UNSUPP) {
TFPRINTF(stderr,
_TSK_T("Unsupported file system type: %s\n"), OPTARG);
usage();
}
break;
case _TSK_T('i'):
if (TSTRCMP(OPTARG, _TSK_T("list")) == 0) {
tsk_img_type_print(stderr);
exit(1);
}
imgtype = tsk_img_type_toid(OPTARG);
if (imgtype == TSK_IMG_TYPE_UNSUPP) {
TFPRINTF(stderr, _TSK_T("Unsupported image type: %s\n"),
OPTARG);
usage();
}
break;
case _TSK_T('o'):
if ((imgaddr = tsk_parse_offset(OPTARG)) == -1) {
tsk_error_print(stderr);
exit(1);
}
break;
case _TSK_T('v'):
tsk_verbose++;
break;
case _TSK_T('V'):
tsk_version_print(stdout);
exit(0);
}
}
/* We need at least two more arguments */
if (OPTIND + 1 >= argc) {
tsk_fprintf(stderr, "Missing image name and/or block address\n");
usage();
}
blk = TSTRTOULL(argv[argc - 1], &cp, 0);
if (*cp || *cp == *argv[argc - 1]) {
TFPRINTF(stderr, _TSK_T("bad block number: %s"), argv[argc - 1]);
exit(1);
}
/* Do we have an inode as well? */
if (tsk_fs_parse_inum(argv[argc - 2], &inum, NULL, NULL, NULL, NULL)) {
/* Not a number therefore an image */
if ((img =
tsk_img_open(argc - OPTIND - 1, &argv[OPTIND],
imgtype, ssize)) == NULL) {
tsk_error_print(stderr);
exit(1);
}
if ((imgaddr * img->sector_size) >= img->size) {
tsk_fprintf(stderr,
"Sector offset supplied is larger than disk image (maximum: %"
PRIu64 ")\n", img->size / img->sector_size);
exit(1);
}
if ((fs = tsk_fs_open_img(img, imgaddr * img->sector_size, fstype)) == NULL) {
tsk_error_print(stderr);
if (tsk_error_get_errno() == TSK_ERR_FS_UNSUPTYPE)
tsk_fs_type_print(stderr);
tsk_img_close(img);
exit(1);
}
inum = fs->journ_inum;
}
else {
if ((img =
tsk_img_open(argc - OPTIND - 2, &argv[OPTIND],
imgtype, ssize)) == NULL) {
tsk_error_print(stderr);
exit(1);
}
if ((fs = tsk_fs_open_img(img, imgaddr * img->sector_size, fstype)) == NULL) {
tsk_error_print(stderr);
if (tsk_error_get_errno() == TSK_ERR_FS_UNSUPTYPE)
tsk_fs_type_print(stderr);
tsk_img_close(img);
exit(1);
}
}
if (inum > fs->last_inum) {
tsk_fprintf(stderr,
"Inode value is too large for image (%" PRIuINUM ")\n",
fs->last_inum);
tsk_fs_close(fs);
tsk_img_close(img);
exit(1);
}
if (inum < fs->first_inum) {
tsk_fprintf(stderr,
"Inode value is too small for image (%" PRIuINUM ")\n",
fs->first_inum);
tsk_fs_close(fs);
tsk_img_close(img);
exit(1);
}
if (fs->jopen == NULL) {
tsk_fprintf(stderr,
"Journal support does not exist for this file system\n");
tsk_fs_close(fs);
tsk_img_close(img);
exit(1);
}
#ifdef TSK_WIN32
if (-1 == _setmode(_fileno(stdout), _O_BINARY)) {
fprintf(stderr,
"jcat: error setting stdout to binary: %s", strerror(errno));
tsk_fs_close(fs);
tsk_img_close(img);
exit(1);
}
#endif
if (fs->jopen(fs, inum)) {
tsk_error_print(stderr);
tsk_fs_close(fs);
tsk_img_close(img);
exit(1);
}
if (fs->jblk_walk(fs, blk, blk, 0, 0, NULL)) {
tsk_error_print(stderr);
tsk_fs_close(fs);
tsk_img_close(img);
exit(1);
}
tsk_fs_close(fs);
tsk_img_close(img);
exit(0);
}
|
