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/*
** fcat
** The Sleuth Kit
**
** Brian Carrier [carrier <at> sleuthkit [dot] org]
** Copyright (c) 2012 Brian Carrier, Basis Technology. All Rights reserved
**
** This software is distributed under the Common Public License 1.0
**/
#include "tsk/tsk_tools_i.h"
#include <locale.h>
/* usage - explain and terminate */
static TSK_TCHAR *progname;
static void
usage()
{
TFPRINTF(stderr,
_TSK_T
("usage: %s [-hRsvV] [-f fstype] [-i imgtype] [-b dev_sector_size] [-o imgoffset] file_path image [images]\n"),
progname);
tsk_fprintf(stderr, "\t-h: Do not display holes in sparse files\n");
tsk_fprintf(stderr,
"\t-R: Suppress recovery errors\n");
tsk_fprintf(stderr, "\t-s: Display slack space at end of file\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 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 fw_flags = 0;
int ch;
int retval;
int suppress_recover_error = 0;
TSK_TCHAR **argv;
TSK_TCHAR *cp;
unsigned int ssize = 0;
TSK_TCHAR *path = NULL;
size_t len;
#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:hi:o:rRsvV"))) > 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('h'):
fw_flags |= TSK_FS_FILE_WALK_FLAG_NOSPARSE;
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('R'):
suppress_recover_error = 1;
break;
case _TSK_T('s'):
fw_flags |= TSK_FS_FILE_WALK_FLAG_SLACK;
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 path\n");
usage();
}
// copy in path
len = (TSTRLEN(argv[OPTIND]) + 1) * sizeof(TSK_TCHAR);
if ((path = (TSK_TCHAR *) tsk_malloc(len)) == NULL) {
tsk_fprintf(stderr, "error allocating memory\n");
exit(1);
}
TSTRNCPY(path, argv[OPTIND], TSTRLEN(argv[OPTIND]) + 1);
if ((img =
tsk_img_open(argc - OPTIND - 1, &argv[OPTIND+1],
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);
img->close(img);
exit(1);
}
if (-1 == (retval = tsk_fs_ifind_path(fs, path, &inum))) {
tsk_error_print(stderr);
fs->close(fs);
img->close(img);
free(path);
exit(1);
}
else if (retval == 1) {
tsk_fprintf(stderr, "File not found\n");
fs->close(fs);
img->close(img);
free(path);
exit(1);
}
free(path);
// @@@ Cannot currently get ADS with this approach
retval =
tsk_fs_icat(fs, inum, (TSK_FS_ATTR_TYPE_ENUM)0, 0, 0, 0,
(TSK_FS_FILE_WALK_FLAG_ENUM) fw_flags);
if (retval) {
if ((suppress_recover_error == 1)
&& (tsk_error_get_errno() == TSK_ERR_FS_RECOVER)) {
tsk_error_reset();
}
else {
tsk_error_print(stderr);
fs->close(fs);
img->close(img);
exit(1);
}
}
fs->close(fs);
img->close(img);
exit(0);
}
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