/*-
* Copyright (c) 2008 Christos Zoulas
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "file.h"
#ifndef lint
FILE_RCSID("@(#)$File: readcdf.c,v 1.40 2014/03/06 15:23:33 christos Exp $")
#endif
#include <stdlib.h>
#ifdef PHP_WIN32
#include "win32/unistd.h"
#else
#include <unistd.h>
#endif
#include <string.h>
#include <time.h>
#include <ctype.h>
#if defined(HAVE_LOCALE_H)
#include <locale.h>
#endif
#include "cdf.h"
#include "magic.h"
#define NOTMIME(ms) (((ms)->flags & MAGIC_MIME) == 0)
static const struct nv {
const char *pattern;
const char *mime;
} app2mime[] = {
{ "Word", "msword", },
{ "Excel", "vnd.ms-excel", },
{ "Powerpoint", "vnd.ms-powerpoint", },
{ "Crystal Reports", "x-rpt", },
{ "Advanced Installer", "vnd.ms-msi", },
{ "InstallShield", "vnd.ms-msi", },
{ "Microsoft Patch Compiler", "vnd.ms-msi", },
{ "NAnt", "vnd.ms-msi", },
{ "Windows Installer", "vnd.ms-msi", },
{ NULL, NULL, },
}, name2mime[] = {
{ "WordDocument", "msword", },
{ "PowerPoint", "vnd.ms-powerpoint", },
{ "DigitalSignature", "vnd.ms-msi", },
{ NULL, NULL, },
}, name2desc[] = {
{ "WordDocument", "Microsoft Office Word",},
{ "PowerPoint", "Microsoft PowerPoint", },
{ "DigitalSignature", "Microsoft Installer", },
{ NULL, NULL, },
};
#ifdef PHP_WIN32
# define strcasestr strstr
#endif
static const struct cv {
uint64_t clsid[2];
const char *mime;
} clsid2mime[] = {
{
#ifdef PHP_WIN32
{ 0x00000000000c1084ui64, 0x46000000000000c0ui64 },
#else
{ 0x00000000000c1084LLU, 0x46000000000000c0LLU },
#endif
"x-msi",
},
{ { 0, 0 },
NULL,
}
}, clsid2desc[] = {
{
#ifdef PHP_WIN32
{ 0x00000000000c1084ui64, 0x46000000000000c0ui64 },
#else
{ 0x00000000000c1084LLU, 0x46000000000000c0LLU },
#endif
"MSI Installer",
},
{ { 0, 0 },
NULL,
}
};
private const char *
cdf_clsid_to_mime(const uint64_t clsid[2], const struct cv *cv)
{
size_t i;
for (i = 0; cv[i].mime != NULL; i++) {
if (clsid[0] == cv[i].clsid[0] && clsid[1] == cv[i].clsid[1])
return cv[i].mime;
}
return NULL;
}
private const char *
cdf_app_to_mime(const char *vbuf, const struct nv *nv)
{
size_t i;
const char *rv = NULL;
(void)setlocale(LC_CTYPE, "C");
for (i = 0; nv[i].pattern != NULL; i++)
if (strcasestr(vbuf, nv[i].pattern) != NULL) {
rv = nv[i].mime;
break;
}
(void)setlocale(LC_CTYPE, "");
return rv;
}
private int
cdf_file_property_info(struct magic_set *ms, const cdf_property_info_t *info,
size_t count, const cdf_directory_t *root_storage)
{
size_t i;
cdf_timestamp_t tp;
struct timeval ts;
char buf[64];
const char *str = NULL;
const char *s;
int len;
memset(&ts, 0, sizeof(ts));
if (!NOTMIME(ms) && root_storage)
str = cdf_clsid_to_mime(root_storage->d_storage_uuid, clsid2mime);
for (i = 0; i < count; i++) {
cdf_print_property_name(buf, sizeof(buf), info[i].pi_id);
switch (info[i].pi_type) {
case CDF_NULL:
break;
case CDF_SIGNED16:
if (NOTMIME(ms) && file_printf(ms, ", %s: %hd", buf,
info[i].pi_s16) == -1)
return -1;
break;
case CDF_SIGNED32:
if (NOTMIME(ms) && file_printf(ms, ", %s: %d", buf,
info[i].pi_s32) == -1)
return -1;
break;
case CDF_UNSIGNED32:
if (NOTMIME(ms) && file_printf(ms, ", %s: %u", buf,
info[i].pi_u32) == -1)
return -1;
break;
case CDF_FLOAT:
if (NOTMIME(ms) && file_printf(ms, ", %s: %g", buf,
info[i].pi_f) == -1)
return -1;
break;
case CDF_DOUBLE:
if (NOTMIME(ms) && file_printf(ms, ", %s: %g", buf,
info[i].pi_d) == -1)
return -1;
break;
case CDF_LENGTH32_STRING:
case CDF_LENGTH32_WSTRING:
len = info[i].pi_str.s_len;
if (len > 1) {
char vbuf[1024];
size_t j, k = 1;
if (info[i].pi_type == CDF_LENGTH32_WSTRING)
k++;
s = info[i].pi_str.s_buf;
for (j = 0; j < sizeof(vbuf) && len--;
j++, s += k) {
if (*s == '\0')
break;
if (isprint((unsigned char)*s))
vbuf[j] = *s;
}
if (j == sizeof(vbuf))
--j;
vbuf[j] = '\0';
if (NOTMIME(ms)) {
if (vbuf[0]) {
if (file_printf(ms, ", %s: %s",
buf, vbuf) == -1)
return -1;
}
} else if (str == NULL && info[i].pi_id ==
CDF_PROPERTY_NAME_OF_APPLICATION) {
str = cdf_app_to_mime(vbuf, app2mime);
}
}
break;
case CDF_FILETIME:
tp = info[i].pi_tp;
if (tp != 0) {
char tbuf[64];
#if defined(PHP_WIN32) && _MSC_VER <= 1500
if (tp < 1000000000000000i64) {
#else
if (tp < 1000000000000000LL) {
#endif
cdf_print_elapsed_time(tbuf,
sizeof(tbuf), tp);
if (NOTMIME(ms) && file_printf(ms,
", %s: %s", buf, tbuf) == -1)
return -1;
} else {
char *c, *ec;
const time_t sec = ts.tv_sec;
if (cdf_timestamp_to_timespec(&ts, tp) == -1) {
return -1;
}
c = cdf_ctime(&sec, tbuf);
if (c != NULL &&
(ec = strchr(c, '\n')) != NULL)
*ec = '\0';
if (NOTMIME(ms) && file_printf(ms,
", %s: %s", buf, c) == -1)
return -1;
}
}
break;
case CDF_CLIPBOARD:
break;
default:
return -1;
}
}
if (!NOTMIME(ms)) {
if (str == NULL)
return 0;
if (file_printf(ms, "application/%s", str) == -1)
return -1;
}
return 1;
}
private int
cdf_file_summary_info(struct magic_set *ms, const cdf_header_t *h,
const cdf_stream_t *sst, const cdf_directory_t *root_storage)
{
cdf_summary_info_header_t si;
cdf_property_info_t *info;
size_t count;
int m;
if (cdf_unpack_summary_info(sst, h, &si, &info, &count) == -1)
return -1;
if (NOTMIME(ms)) {
const char *str;
if (file_printf(ms, "Composite Document File V2 Document")
== -1)
return -1;
if (file_printf(ms, ", %s Endian",
si.si_byte_order == 0xfffe ? "Little" : "Big") == -1)
return -2;
switch (si.si_os) {
case 2:
if (file_printf(ms, ", Os: Windows, Version %d.%d",
si.si_os_version & 0xff,
(uint32_t)si.si_os_version >> 8) == -1)
return -2;
break;
case 1:
if (file_printf(ms, ", Os: MacOS, Version %d.%d",
(uint32_t)si.si_os_version >> 8,
si.si_os_version & 0xff) == -1)
return -2;
break;
default:
if (file_printf(ms, ", Os %d, Version: %d.%d", si.si_os,
si.si_os_version & 0xff,
(uint32_t)si.si_os_version >> 8) == -1)
return -2;
break;
}
if (root_storage) {
str = cdf_clsid_to_mime(root_storage->d_storage_uuid, clsid2desc);
if (str)
if (file_printf(ms, ", %s", str) == -1)
return -2;
}
}
m = cdf_file_property_info(ms, info, count, root_storage);
free(info);
return m == -1 ? -2 : m;
}
protected int
file_trycdf(struct magic_set *ms, int fd, const unsigned char *buf,
size_t nbytes)
{
cdf_info_t info;
cdf_header_t h;
cdf_sat_t sat, ssat;
cdf_stream_t sst, scn;
cdf_dir_t dir;
int i;
const char *expn = "";
const char *corrupt = "corrupt: ";
const cdf_directory_t *root_storage;
info.i_fd = fd;
info.i_buf = buf;
info.i_len = nbytes;
if (ms->flags & MAGIC_APPLE)
return 0;
if (cdf_read_header(&info, &h) == -1)
return 0;
#ifdef CDF_DEBUG
cdf_dump_header(&h);
#endif
if ((i = cdf_read_sat(&info, &h, &sat)) == -1) {
expn = "Can't read SAT";
goto out0;
}
#ifdef CDF_DEBUG
cdf_dump_sat("SAT", &sat, CDF_SEC_SIZE(&h));
#endif
if ((i = cdf_read_ssat(&info, &h, &sat, &ssat)) == -1) {
expn = "Can't read SSAT";
goto out1;
}
#ifdef CDF_DEBUG
cdf_dump_sat("SSAT", &ssat, CDF_SHORT_SEC_SIZE(&h));
#endif
if ((i = cdf_read_dir(&info, &h, &sat, &dir)) == -1) {
expn = "Can't read directory";
goto out2;
}
if ((i = cdf_read_short_stream(&info, &h, &sat, &dir, &sst,
&root_storage)) == -1) {
expn = "Cannot read short stream";
goto out3;
}
#ifdef CDF_DEBUG
cdf_dump_dir(&info, &h, &sat, &ssat, &sst, &dir);
#endif
if ((i = cdf_read_summary_info(&info, &h, &sat, &ssat, &sst, &dir,
&scn)) == -1) {
if (errno == ESRCH) {
corrupt = expn;
expn = "No summary info";
} else {
expn = "Cannot read summary info";
}
goto out4;
}
#ifdef CDF_DEBUG
cdf_dump_summary_info(&h, &scn);
#endif
if ((i = cdf_file_summary_info(ms, &h, &scn, root_storage)) < 0)
expn = "Can't expand summary_info";
if (i == 0) {
const char *str = NULL;
cdf_directory_t *d;
char name[__arraycount(d->d_name)];
size_t j, k;
for (j = 0; str == NULL && j < dir.dir_len; j++) {
d = &dir.dir_tab[j];
for (k = 0; k < sizeof(name); k++)
name[k] = (char)cdf_tole2(d->d_name[k]);
str = cdf_app_to_mime(name,
NOTMIME(ms) ? name2desc : name2mime);
}
if (NOTMIME(ms)) {
if (str != NULL) {
if (file_printf(ms, "%s", str) == -1)
return -1;
i = 1;
}
} else {
if (str == NULL)
str = "vnd.ms-office";
if (file_printf(ms, "application/%s", str) == -1)
return -1;
i = 1;
}
}
free(scn.sst_tab);
out4:
free(sst.sst_tab);
out3:
free(dir.dir_tab);
out2:
free(ssat.sat_tab);
out1:
free(sat.sat_tab);
out0:
if (i == -1) {
if (NOTMIME(ms)) {
if (file_printf(ms,
"Composite Document File V2 Document") == -1)
return -1;
if (*expn)
if (file_printf(ms, ", %s%s", corrupt, expn) == -1)
return -1;
} else {
if (file_printf(ms, "application/CDFV2-corrupt") == -1)
return -1;
}
i = 1;
}
return i;
}