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-rw-r--r--src/readcdf.c682
1 files changed, 682 insertions, 0 deletions
diff --git a/src/readcdf.c b/src/readcdf.c
new file mode 100644
index 0000000..30c3d24
--- /dev/null
+++ b/src/readcdf.c
@@ -0,0 +1,682 @@
+/*-
+ * Copyright (c) 2008, 2016 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 1.80 2023/01/24 20:13:40 christos Exp $")
+#endif
+
+#include <assert.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <time.h>
+#include <ctype.h>
+
+#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[] = {
+ { "Book", "vnd.ms-excel", },
+ { "Workbook", "vnd.ms-excel", },
+ { "WordDocument", "msword", },
+ { "PowerPoint", "vnd.ms-powerpoint", },
+ { "DigitalSignature", "vnd.ms-msi", },
+ { NULL, NULL, },
+}, name2desc[] = {
+ { "Book", "Microsoft Excel", },
+ { "Workbook", "Microsoft Excel", },
+ { "WordDocument", "Microsoft Word", },
+ { "PowerPoint", "Microsoft PowerPoint", },
+ { "DigitalSignature", "Microsoft Installer", },
+ { NULL, NULL, },
+};
+
+static const struct cv {
+ uint64_t clsid[2];
+ const char *mime;
+} clsid2mime[] = {
+ {
+ { 0x00000000000c1084ULL, 0x46000000000000c0ULL },
+ "x-msi",
+ },
+ { { 0, 0 },
+ NULL,
+ },
+}, clsid2desc[] = {
+ {
+ { 0x00000000000c1084ULL, 0x46000000000000c0ULL },
+ "MSI Installer",
+ },
+ { { 0, 0 },
+ NULL,
+ },
+};
+
+file_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;
+ }
+#ifdef CDF_DEBUG
+ fprintf(stderr, "unknown mime %" PRIx64 ", %" PRIx64 "\n", clsid[0],
+ clsid[1]);
+#endif
+ return NULL;
+}
+
+file_private const char *
+cdf_app_to_mime(const char *vbuf, const struct nv *nv)
+{
+ size_t i;
+ const char *rv = NULL;
+#ifdef USE_C_LOCALE
+ locale_t old_lc_ctype, c_lc_ctype;
+
+ c_lc_ctype = newlocale(LC_CTYPE_MASK, "C", 0);
+ assert(c_lc_ctype != NULL);
+ old_lc_ctype = uselocale(c_lc_ctype);
+ assert(old_lc_ctype != NULL);
+#else
+ char *old_lc_ctype = setlocale(LC_CTYPE, NULL);
+ assert(old_lc_ctype != NULL);
+ old_lc_ctype = strdup(old_lc_ctype);
+ assert(old_lc_ctype != NULL);
+ (void)setlocale(LC_CTYPE, "C");
+#endif
+ for (i = 0; nv[i].pattern != NULL; i++)
+ if (strcasestr(vbuf, nv[i].pattern) != NULL) {
+ rv = nv[i].mime;
+ break;
+ }
+#ifdef CDF_DEBUG
+ fprintf(stderr, "unknown app %s\n", vbuf);
+#endif
+#ifdef USE_C_LOCALE
+ (void)uselocale(old_lc_ctype);
+ freelocale(c_lc_ctype);
+#else
+ (void)setlocale(LC_CTYPE, old_lc_ctype);
+ free(old_lc_ctype);
+#endif
+ return rv;
+}
+
+file_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 timespec ts;
+ char buf[64];
+ const char *str = NULL;
+ const char *s, *e;
+ int len;
+
+ 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;
+ e = info[i].pi_str.s_buf + len;
+ for (j = 0; s < e && j < sizeof(vbuf)
+ && len--; s += k) {
+ if (*s == '\0')
+ break;
+ if (isprint(CAST(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 (tp < 1000000000000000LL) {
+ 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;
+ cdf_timestamp_to_timespec(&ts, tp);
+ c = cdf_ctime(&ts.tv_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 (ms->flags & MAGIC_MIME_TYPE) {
+ if (str == NULL)
+ return 0;
+ if (file_printf(ms, "application/%s", str) == -1)
+ return -1;
+ }
+ return 1;
+}
+
+file_private int
+cdf_file_catalog(struct magic_set *ms, const cdf_header_t *h,
+ const cdf_stream_t *sst)
+{
+ cdf_catalog_t *cat;
+ size_t i;
+ char buf[256];
+ cdf_catalog_entry_t *ce;
+
+ if (NOTMIME(ms)) {
+ if (file_printf(ms, "Microsoft Thumbs.db [") == -1)
+ return -1;
+ if (cdf_unpack_catalog(h, sst, &cat) == -1)
+ return -1;
+ ce = cat->cat_e;
+ /* skip first entry since it has a , or paren */
+ for (i = 1; i < cat->cat_num; i++)
+ if (file_printf(ms, "%s%s",
+ cdf_u16tos8(buf, ce[i].ce_namlen, ce[i].ce_name),
+ i == cat->cat_num - 1 ? "]" : ", ") == -1) {
+ free(cat);
+ return -1;
+ }
+ free(cat);
+ } else if (ms->flags & MAGIC_MIME_TYPE) {
+ if (file_printf(ms, "application/CDFV2") == -1)
+ return -1;
+ }
+ return 1;
+}
+
+file_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,
+ CAST(uint32_t, si.si_os_version) >> 8) == -1)
+ return -2;
+ break;
+ case 1:
+ if (file_printf(ms, ", Os: MacOS, Version %d.%d",
+ CAST(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,
+ CAST(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;
+}
+
+#ifdef notdef
+file_private char *
+format_clsid(char *buf, size_t len, const uint64_t uuid[2]) {
+ snprintf(buf, len, "%.8" PRIx64 "-%.4" PRIx64 "-%.4" PRIx64 "-%.4"
+ PRIx64 "-%.12" PRIx64,
+ (uuid[0] >> 32) & (uint64_t)0x000000000ffffffffULL,
+ (uuid[0] >> 16) & (uint64_t)0x0000000000000ffffULL,
+ (uuid[0] >> 0) & (uint64_t)0x0000000000000ffffULL,
+ (uuid[1] >> 48) & (uint64_t)0x0000000000000ffffULL,
+ (uuid[1] >> 0) & (uint64_t)0x0000fffffffffffffULL);
+ return buf;
+}
+#endif
+
+file_private int
+cdf_file_catalog_info(struct magic_set *ms, const cdf_info_t *info,
+ const cdf_header_t *h, const cdf_sat_t *sat, const cdf_sat_t *ssat,
+ const cdf_stream_t *sst, const cdf_dir_t *dir, cdf_stream_t *scn)
+{
+ int i;
+
+ if ((i = cdf_read_user_stream(info, h, sat, ssat, sst,
+ dir, "Catalog", scn)) == -1)
+ return i;
+#ifdef CDF_DEBUG
+ cdf_dump_catalog(h, scn);
+#endif
+ if ((i = cdf_file_catalog(ms, h, scn)) == -1)
+ return -1;
+ return i;
+}
+
+file_private int
+cdf_check_summary_info(struct magic_set *ms, const cdf_info_t *info,
+ const cdf_header_t *h, const cdf_sat_t *sat, const cdf_sat_t *ssat,
+ const cdf_stream_t *sst, const cdf_dir_t *dir, cdf_stream_t *scn,
+ const cdf_directory_t *root_storage, const char **expn)
+{
+ int i;
+ const char *str = NULL;
+ cdf_directory_t *d;
+ char name[__arraycount(d->d_name)];
+ size_t j, k;
+
+#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";
+ return i;
+ }
+ if (i == 1)
+ return i;
+ for (j = 0; str == NULL && j < dir->dir_len; j++) {
+ d = &dir->dir_tab[j];
+ for (k = 0; k < sizeof(name); k++)
+ name[k] = CAST(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 (ms->flags & MAGIC_MIME_TYPE) {
+ if (str == NULL)
+ str = "vnd.ms-office";
+ if (file_printf(ms, "application/%s", str) == -1)
+ return -1;
+ i = 1;
+ }
+ if (i <= 0) {
+ i = cdf_file_catalog_info(ms, info, h, sat, ssat, sst,
+ dir, scn);
+ }
+ return i;
+}
+
+file_private struct sinfo {
+ const char *name;
+ const char *mime;
+ const char *sections[5];
+ const int types[5];
+} sectioninfo[] = {
+ { "Encrypted", "encrypted",
+ {
+ "EncryptedPackage", "EncryptedSummary",
+ NULL, NULL, NULL,
+ },
+ {
+ CDF_DIR_TYPE_USER_STREAM,
+ CDF_DIR_TYPE_USER_STREAM,
+ 0, 0, 0,
+
+ },
+ },
+ { "QuickBooks", "quickbooks",
+ {
+#if 0
+ "TaxForms", "PDFTaxForms", "modulesInBackup",
+#endif
+ "mfbu_header", NULL, NULL, NULL, NULL,
+ },
+ {
+#if 0
+ CDF_DIR_TYPE_USER_STORAGE,
+ CDF_DIR_TYPE_USER_STORAGE,
+ CDF_DIR_TYPE_USER_STREAM,
+#endif
+ CDF_DIR_TYPE_USER_STREAM,
+ 0, 0, 0, 0
+ },
+ },
+ { "Microsoft Excel", "vnd.ms-excel",
+ {
+ "Book", "Workbook", NULL, NULL, NULL,
+ },
+ {
+ CDF_DIR_TYPE_USER_STREAM,
+ CDF_DIR_TYPE_USER_STREAM,
+ 0, 0, 0,
+ },
+ },
+ { "Microsoft Word", "msword",
+ {
+ "WordDocument", NULL, NULL, NULL, NULL,
+ },
+ {
+ CDF_DIR_TYPE_USER_STREAM,
+ 0, 0, 0, 0,
+ },
+ },
+ { "Microsoft PowerPoint", "vnd.ms-powerpoint",
+ {
+ "PowerPoint", NULL, NULL, NULL, NULL,
+ },
+ {
+ CDF_DIR_TYPE_USER_STREAM,
+ 0, 0, 0, 0,
+ },
+ },
+ { "Microsoft Outlook Message", "vnd.ms-outlook",
+ {
+ "__properties_version1.0",
+ "__recip_version1.0_#00000000",
+ NULL, NULL, NULL,
+ },
+ {
+ CDF_DIR_TYPE_USER_STREAM,
+ CDF_DIR_TYPE_USER_STORAGE,
+ 0, 0, 0,
+ },
+ },
+};
+
+file_private int
+cdf_file_dir_info(struct magic_set *ms, const cdf_dir_t *dir)
+{
+ size_t sd, j;
+
+ for (sd = 0; sd < __arraycount(sectioninfo); sd++) {
+ const struct sinfo *si = &sectioninfo[sd];
+ for (j = 0; si->sections[j]; j++) {
+ if (cdf_find_stream(dir, si->sections[j], si->types[j])
+ > 0)
+ break;
+#ifdef CDF_DEBUG
+ fprintf(stderr, "Can't read %s\n", si->sections[j]);
+#endif
+ }
+ if (si->sections[j] == NULL)
+ continue;
+ if (NOTMIME(ms)) {
+ if (file_printf(ms, "CDFV2 %s", si->name) == -1)
+ return -1;
+ } else if (ms->flags & MAGIC_MIME_TYPE) {
+ if (file_printf(ms, "application/%s", si->mime) == -1)
+ return -1;
+ }
+ return 1;
+ }
+ return -1;
+}
+
+file_protected int
+file_trycdf(struct magic_set *ms, const struct buffer *b)
+{
+ int fd = b->fd;
+ const unsigned char *buf = CAST(const unsigned char *, b->fbuf);
+ size_t nbytes = b->flen;
+ 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 cdf_directory_t *root_storage;
+
+ scn.sst_tab = NULL;
+ info.i_fd = fd;
+ info.i_buf = buf;
+ info.i_len = nbytes;
+ if (ms->flags & (MAGIC_APPLE|MAGIC_EXTENSION))
+ 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
+#ifdef notdef
+ if (root_storage) {
+ if (NOTMIME(ms)) {
+ char clsbuf[128];
+ if (file_printf(ms, "CLSID %s, ",
+ format_clsid(clsbuf, sizeof(clsbuf),
+ root_storage->d_storage_uuid)) == -1)
+ return -1;
+ }
+ }
+#endif
+
+ if (cdf_read_user_stream(&info, &h, &sat, &ssat, &sst, &dir,
+ "FileHeader", &scn) != -1) {
+#define HWP5_SIGNATURE "HWP Document File"
+ if (scn.sst_len * scn.sst_ss >= sizeof(HWP5_SIGNATURE) - 1
+ && memcmp(scn.sst_tab, HWP5_SIGNATURE,
+ sizeof(HWP5_SIGNATURE) - 1) == 0) {
+ if (NOTMIME(ms)) {
+ if (file_printf(ms,
+ "Hancom HWP (Hangul Word Processor) file, version 5.0") == -1)
+ return -1;
+ } else if (ms->flags & MAGIC_MIME_TYPE) {
+ if (file_printf(ms, "application/x-hwp") == -1)
+ return -1;
+ }
+ i = 1;
+ goto out5;
+ } else {
+ cdf_zero_stream(&scn);
+ }
+ }
+
+ if ((i = cdf_read_summary_info(&info, &h, &sat, &ssat, &sst, &dir,
+ &scn)) == -1) {
+ if (errno != ESRCH) {
+ expn = "Cannot read summary info";
+ }
+ } else {
+ i = cdf_check_summary_info(ms, &info, &h,
+ &sat, &ssat, &sst, &dir, &scn, root_storage, &expn);
+ cdf_zero_stream(&scn);
+ }
+ if (i <= 0) {
+ if ((i = cdf_read_doc_summary_info(&info, &h, &sat, &ssat,
+ &sst, &dir, &scn)) == -1) {
+ if (errno != ESRCH) {
+ expn = "Cannot read summary info";
+ }
+ } else {
+ i = cdf_check_summary_info(ms, &info, &h, &sat, &ssat,
+ &sst, &dir, &scn, root_storage, &expn);
+ }
+ }
+ if (i <= 0) {
+ i = cdf_file_dir_info(ms, &dir);
+ if (i < 0)
+ expn = "Cannot read section info";
+ }
+out5:
+ cdf_zero_stream(&scn);
+ cdf_zero_stream(&sst);
+out3:
+ free(dir.dir_tab);
+out2:
+ free(ssat.sat_tab);
+out1:
+ free(sat.sat_tab);
+out0:
+ /* If we handled it already, return */
+ if (i != -1)
+ return i;
+ /* Provide a default handler */
+ if (NOTMIME(ms)) {
+ if (file_printf(ms,
+ "Composite Document File V2 Document") == -1)
+ return -1;
+ if (*expn)
+ if (file_printf(ms, ", %s", expn) == -1)
+ return -1;
+ } else if (ms->flags & MAGIC_MIME_TYPE) {
+ /* https://reposcope.com/mimetype/application/x-ole-storage */
+ if (file_printf(ms, "application/x-ole-storage") == -1)
+ return -1;
+ }
+ return 1;
+}