Adding upstream version 1:5.44.upstream/1%5.44upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1676 insertions, 0 deletions

diff --git a/src/cdf.c b/src/cdf.c
new file mode 100644
index 0000000..36a6031
--- /dev/null
+++ b/src/cdf.c
@@ -0,0 +1,1676 @@
+/*-
+ * 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.
+ */
+/*
+ * Parse Composite Document Files, the format used in Microsoft Office
+ * document files before they switched to zipped XML.
+ * Info from: http://sc.openoffice.org/compdocfileformat.pdf
+ *
+ * N.B. This is the "Composite Document File" format, and not the
+ * "Compound Document Format", nor the "Channel Definition Format".
+ */
+
+#include "file.h"
+
+#ifndef lint
+FILE_RCSID("@(#)$File: cdf.c,v 1.123 2022/09/24 20:30:13 christos Exp $")
+#endif
+
+#include <assert.h>
+#ifdef CDF_DEBUG
+#include <err.h>
+#endif
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <time.h>
+#include <ctype.h>
+#include <limits.h>
+#ifdef HAVE_BYTESWAP_H
+#include <byteswap.h>
+#endif
+#ifdef HAVE_SYS_BSWAP_H
+#include <sys/bswap.h>
+#endif
+
+#ifndef EFTYPE
+#define EFTYPE EINVAL
+#endif
+
+#ifndef SIZE_T_MAX
+#define SIZE_T_MAX CAST(size_t, ~0ULL)
+#endif
+
+#include "cdf.h"
+
+#ifdef CDF_DEBUG
+#define DPRINTF(a) printf a, fflush(stdout)
+#else
+#define DPRINTF(a)
+#endif
+
+static union {
+	char s[4];
+	uint32_t u;
+} cdf_bo;
+
+#define NEED_SWAP	(cdf_bo.u == CAST(uint32_t, 0x01020304))
+
+#define CDF_TOLE8(x)	\
+    (CAST(uint64_t, NEED_SWAP ? _cdf_tole8(x) : CAST(uint64_t, x)))
+#define CDF_TOLE4(x)	\
+    (CAST(uint32_t, NEED_SWAP ? _cdf_tole4(x) : CAST(uint32_t, x)))
+#define CDF_TOLE2(x)	\
+    (CAST(uint16_t, NEED_SWAP ? _cdf_tole2(x) : CAST(uint16_t, x)))
+#define CDF_TOLE(x)	(/*CONSTCOND*/sizeof(x) == 2 ? \
+			    CDF_TOLE2(CAST(uint16_t, x)) : \
+			(/*CONSTCOND*/sizeof(x) == 4 ? \
+			    CDF_TOLE4(CAST(uint32_t, x)) : \
+			    CDF_TOLE8(CAST(uint64_t, x))))
+#define CDF_GETUINT32(x, y)	cdf_getuint32(x, y)
+
+#define CDF_MALLOC(n) cdf_malloc(__FILE__, __LINE__, (n))
+#define CDF_REALLOC(p, n) cdf_realloc(__FILE__, __LINE__, (p), (n))
+#define CDF_CALLOC(n, u) cdf_calloc(__FILE__, __LINE__, (n), (u))
+
+
+/*ARGSUSED*/
+static void *
+cdf_malloc(const char *file __attribute__((__unused__)),
+    size_t line __attribute__((__unused__)), size_t n)
+{
+	DPRINTF(("%s,%" SIZE_T_FORMAT "u: %s %" SIZE_T_FORMAT "u\n",
+	    file, line, __func__, n));
+	if (n == 0)
+	    n++;
+	return malloc(n);
+}
+
+/*ARGSUSED*/
+static void *
+cdf_realloc(const char *file __attribute__((__unused__)),
+    size_t line __attribute__((__unused__)), void *p, size_t n)
+{
+	DPRINTF(("%s,%" SIZE_T_FORMAT "u: %s %" SIZE_T_FORMAT "u\n",
+	    file, line, __func__, n));
+	return realloc(p, n);
+}
+
+/*ARGSUSED*/
+static void *
+cdf_calloc(const char *file __attribute__((__unused__)),
+    size_t line __attribute__((__unused__)), size_t n, size_t u)
+{
+	DPRINTF(("%s,%" SIZE_T_FORMAT "u: %s %" SIZE_T_FORMAT "u %"
+	    SIZE_T_FORMAT "u\n", file, line, __func__, n, u));
+	if (n == 0)
+	    n++;
+	return calloc(n, u);
+}
+
+#if defined(HAVE_BYTESWAP_H)
+# define _cdf_tole2(x)	bswap_16(x)
+# define _cdf_tole4(x)	bswap_32(x)
+# define _cdf_tole8(x)	bswap_64(x)
+#elif defined(HAVE_SYS_BSWAP_H)
+# define _cdf_tole2(x)	bswap16(x)
+# define _cdf_tole4(x)	bswap32(x)
+# define _cdf_tole8(x)	bswap64(x)
+#else
+/*
+ * swap a short
+ */
+static uint16_t
+_cdf_tole2(uint16_t sv)
+{
+	uint16_t rv;
+	uint8_t *s = RCAST(uint8_t *, RCAST(void *, &sv));
+	uint8_t *d = RCAST(uint8_t *, RCAST(void *, &rv));
+	d[0] = s[1];
+	d[1] = s[0];
+	return rv;
+}
+
+/*
+ * swap an int
+ */
+static uint32_t
+_cdf_tole4(uint32_t sv)
+{
+	uint32_t rv;
+	uint8_t *s = RCAST(uint8_t *, RCAST(void *, &sv));
+	uint8_t *d = RCAST(uint8_t *, RCAST(void *, &rv));
+	d[0] = s[3];
+	d[1] = s[2];
+	d[2] = s[1];
+	d[3] = s[0];
+	return rv;
+}
+
+/*
+ * swap a quad
+ */
+static uint64_t
+_cdf_tole8(uint64_t sv)
+{
+	uint64_t rv;
+	uint8_t *s = RCAST(uint8_t *, RCAST(void *, &sv));
+	uint8_t *d = RCAST(uint8_t *, RCAST(void *, &rv));
+	d[0] = s[7];
+	d[1] = s[6];
+	d[2] = s[5];
+	d[3] = s[4];
+	d[4] = s[3];
+	d[5] = s[2];
+	d[6] = s[1];
+	d[7] = s[0];
+	return rv;
+}
+#endif
+
+/*
+ * grab a uint32_t from a possibly unaligned address, and return it in
+ * the native host order.
+ */
+static uint32_t
+cdf_getuint32(const uint8_t *p, size_t offs)
+{
+	uint32_t rv;
+	(void)memcpy(&rv, p + offs * sizeof(uint32_t), sizeof(rv));
+	return CDF_TOLE4(rv);
+}
+
+#define CDF_UNPACK(a)	\
+    (void)memcpy(&(a), &buf[len], sizeof(a)), len += sizeof(a)
+#define CDF_UNPACKA(a)	\
+    (void)memcpy((a), &buf[len], sizeof(a)), len += sizeof(a)
+
+uint16_t
+cdf_tole2(uint16_t sv)
+{
+	return CDF_TOLE2(sv);
+}
+
+uint32_t
+cdf_tole4(uint32_t sv)
+{
+	return CDF_TOLE4(sv);
+}
+
+uint64_t
+cdf_tole8(uint64_t sv)
+{
+	return CDF_TOLE8(sv);
+}
+
+void
+cdf_swap_header(cdf_header_t *h)
+{
+	size_t i;
+
+	h->h_magic = CDF_TOLE8(h->h_magic);
+	h->h_uuid[0] = CDF_TOLE8(h->h_uuid[0]);
+	h->h_uuid[1] = CDF_TOLE8(h->h_uuid[1]);
+	h->h_revision = CDF_TOLE2(h->h_revision);
+	h->h_version = CDF_TOLE2(h->h_version);
+	h->h_byte_order = CDF_TOLE2(h->h_byte_order);
+	h->h_sec_size_p2 = CDF_TOLE2(h->h_sec_size_p2);
+	h->h_short_sec_size_p2 = CDF_TOLE2(h->h_short_sec_size_p2);
+	h->h_num_sectors_in_sat = CDF_TOLE4(h->h_num_sectors_in_sat);
+	h->h_secid_first_directory = CDF_TOLE4(h->h_secid_first_directory);
+	h->h_min_size_standard_stream =
+	    CDF_TOLE4(h->h_min_size_standard_stream);
+	h->h_secid_first_sector_in_short_sat =
+	    CDF_TOLE4(CAST(uint32_t, h->h_secid_first_sector_in_short_sat));
+	h->h_num_sectors_in_short_sat =
+	    CDF_TOLE4(h->h_num_sectors_in_short_sat);
+	h->h_secid_first_sector_in_master_sat =
+	    CDF_TOLE4(CAST(uint32_t, h->h_secid_first_sector_in_master_sat));
+	h->h_num_sectors_in_master_sat =
+	    CDF_TOLE4(h->h_num_sectors_in_master_sat);
+	for (i = 0; i < __arraycount(h->h_master_sat); i++) {
+		h->h_master_sat[i] =
+		    CDF_TOLE4(CAST(uint32_t, h->h_master_sat[i]));
+	}
+}
+
+void
+cdf_unpack_header(cdf_header_t *h, char *buf)
+{
+	size_t i;
+	size_t len = 0;
+
+	CDF_UNPACK(h->h_magic);
+	CDF_UNPACKA(h->h_uuid);
+	CDF_UNPACK(h->h_revision);
+	CDF_UNPACK(h->h_version);
+	CDF_UNPACK(h->h_byte_order);
+	CDF_UNPACK(h->h_sec_size_p2);
+	CDF_UNPACK(h->h_short_sec_size_p2);
+	CDF_UNPACKA(h->h_unused0);
+	CDF_UNPACK(h->h_num_sectors_in_sat);
+	CDF_UNPACK(h->h_secid_first_directory);
+	CDF_UNPACKA(h->h_unused1);
+	CDF_UNPACK(h->h_min_size_standard_stream);
+	CDF_UNPACK(h->h_secid_first_sector_in_short_sat);
+	CDF_UNPACK(h->h_num_sectors_in_short_sat);
+	CDF_UNPACK(h->h_secid_first_sector_in_master_sat);
+	CDF_UNPACK(h->h_num_sectors_in_master_sat);
+	for (i = 0; i < __arraycount(h->h_master_sat); i++)
+		CDF_UNPACK(h->h_master_sat[i]);
+}
+
+void
+cdf_swap_dir(cdf_directory_t *d)
+{
+	d->d_namelen = CDF_TOLE2(d->d_namelen);
+	d->d_left_child = CDF_TOLE4(CAST(uint32_t, d->d_left_child));
+	d->d_right_child = CDF_TOLE4(CAST(uint32_t, d->d_right_child));
+	d->d_storage = CDF_TOLE4(CAST(uint32_t, d->d_storage));
+	d->d_storage_uuid[0] = CDF_TOLE8(d->d_storage_uuid[0]);
+	d->d_storage_uuid[1] = CDF_TOLE8(d->d_storage_uuid[1]);
+	d->d_flags = CDF_TOLE4(d->d_flags);
+	d->d_created = CDF_TOLE8(CAST(uint64_t, d->d_created));
+	d->d_modified = CDF_TOLE8(CAST(uint64_t, d->d_modified));
+	d->d_stream_first_sector = CDF_TOLE4(
+	    CAST(uint32_t, d->d_stream_first_sector));
+	d->d_size = CDF_TOLE4(d->d_size);
+}
+
+void
+cdf_swap_class(cdf_classid_t *d)
+{
+	d->cl_dword = CDF_TOLE4(d->cl_dword);
+	d->cl_word[0] = CDF_TOLE2(d->cl_word[0]);
+	d->cl_word[1] = CDF_TOLE2(d->cl_word[1]);
+}
+
+void
+cdf_unpack_dir(cdf_directory_t *d, char *buf)
+{
+	size_t len = 0;
+
+	CDF_UNPACKA(d->d_name);
+	CDF_UNPACK(d->d_namelen);
+	CDF_UNPACK(d->d_type);
+	CDF_UNPACK(d->d_color);
+	CDF_UNPACK(d->d_left_child);
+	CDF_UNPACK(d->d_right_child);
+	CDF_UNPACK(d->d_storage);
+	CDF_UNPACKA(d->d_storage_uuid);
+	CDF_UNPACK(d->d_flags);
+	CDF_UNPACK(d->d_created);
+	CDF_UNPACK(d->d_modified);
+	CDF_UNPACK(d->d_stream_first_sector);
+	CDF_UNPACK(d->d_size);
+	CDF_UNPACK(d->d_unused0);
+}
+
+int
+cdf_zero_stream(cdf_stream_t *scn)
+{
+	scn->sst_len = 0;
+	scn->sst_dirlen = 0;
+	scn->sst_ss = 0;
+	free(scn->sst_tab);
+	scn->sst_tab = NULL;
+	return -1;
+}
+
+static size_t
+cdf_check_stream(const cdf_stream_t *sst, const cdf_header_t *h)
+{
+	size_t ss = sst->sst_dirlen < h->h_min_size_standard_stream ?
+	    CDF_SHORT_SEC_SIZE(h) : CDF_SEC_SIZE(h);
+	assert(ss == sst->sst_ss);
+	return sst->sst_ss;
+}
+
+static int
+cdf_check_stream_offset(const cdf_stream_t *sst, const cdf_header_t *h,
+    const void *p, size_t tail, int line)
+{
+	const char *b = RCAST(const char *, sst->sst_tab);
+	const char *e = RCAST(const char *, p) + tail;
+	size_t ss = cdf_check_stream(sst, h);
+	/*LINTED*/(void)&line;
+	if (e >= b && CAST(size_t, e - b) <= ss * sst->sst_len)
+		return 0;
+	DPRINTF(("%d: offset begin %p < end %p || %" SIZE_T_FORMAT "u"
+	    " > %" SIZE_T_FORMAT "u [%" SIZE_T_FORMAT "u %"
+	    SIZE_T_FORMAT "u]\n", line, b, e, (size_t)(e - b),
+	    ss * sst->sst_len, ss, sst->sst_len));
+	errno = EFTYPE;
+	return -1;
+}
+
+static ssize_t
+cdf_read(const cdf_info_t *info, off_t off, void *buf, size_t len)
+{
+	size_t siz = CAST(size_t, off + len);
+
+	if (CAST(off_t, off + len) != CAST(off_t, siz))
+		goto out;
+
+	if (info->i_buf != NULL && info->i_len >= siz) {
+		(void)memcpy(buf, &info->i_buf[off], len);
+		return CAST(ssize_t, len);
+	}
+
+	if (info->i_fd == -1)
+		goto out;
+
+	if (pread(info->i_fd, buf, len, off) != CAST(ssize_t, len))
+		return -1;
+
+	return CAST(ssize_t, len);
+out:
+	errno = EINVAL;
+	return -1;
+}
+
+int
+cdf_read_header(const cdf_info_t *info, cdf_header_t *h)
+{
+	char buf[512];
+
+	(void)memcpy(cdf_bo.s, "\01\02\03\04", 4);
+	if (cdf_read(info, CAST(off_t, 0), buf, sizeof(buf)) == -1)
+		return -1;
+	cdf_unpack_header(h, buf);
+	cdf_swap_header(h);
+	if (h->h_magic != CDF_MAGIC) {
+		DPRINTF(("Bad magic %#" INT64_T_FORMAT "x != %#"
+		    INT64_T_FORMAT "x\n",
+		    (unsigned long long)h->h_magic,
+		    (unsigned long long)CDF_MAGIC));
+		goto out;
+	}
+	if (h->h_sec_size_p2 > 20) {
+		DPRINTF(("Bad sector size %hu\n", h->h_sec_size_p2));
+		goto out;
+	}
+	if (h->h_short_sec_size_p2 > 20) {
+		DPRINTF(("Bad short sector size %hu\n",
+		    h->h_short_sec_size_p2));
+		goto out;
+	}
+	return 0;
+out:
+	errno = EFTYPE;
+	return -1;
+}
+
+
+ssize_t
+cdf_read_sector(const cdf_info_t *info, void *buf, size_t offs, size_t len,
+    const cdf_header_t *h, cdf_secid_t id)
+{
+	size_t ss = CDF_SEC_SIZE(h);
+	size_t pos;
+
+	if (SIZE_T_MAX / ss < CAST(size_t, id))
+		return -1;
+
+	pos = CDF_SEC_POS(h, id);
+	assert(ss == len);
+	return cdf_read(info, CAST(off_t, pos), RCAST(char *, buf) + offs, len);
+}
+
+ssize_t
+cdf_read_short_sector(const cdf_stream_t *sst, void *buf, size_t offs,
+    size_t len, const cdf_header_t *h, cdf_secid_t id)
+{
+	size_t ss = CDF_SHORT_SEC_SIZE(h);
+	size_t pos;
+
+	if (SIZE_T_MAX / ss < CAST(size_t, id))
+		return -1;
+
+	pos = CDF_SHORT_SEC_POS(h, id);
+	assert(ss == len);
+	if (pos + len > CDF_SEC_SIZE(h) * sst->sst_len) {
+		DPRINTF(("Out of bounds read %" SIZE_T_FORMAT "u > %"
+		    SIZE_T_FORMAT "u\n",
+		    pos + len, CDF_SEC_SIZE(h) * sst->sst_len));
+		goto out;
+	}
+	(void)memcpy(RCAST(char *, buf) + offs,
+	    RCAST(const char *, sst->sst_tab) + pos, len);
+	return len;
+out:
+	errno = EFTYPE;
+	return -1;
+}
+
+/*
+ * Read the sector allocation table.
+ */
+int
+cdf_read_sat(const cdf_info_t *info, cdf_header_t *h, cdf_sat_t *sat)
+{
+	size_t i, j, k;
+	size_t ss = CDF_SEC_SIZE(h);
+	cdf_secid_t *msa, mid, sec;
+	size_t nsatpersec = (ss / sizeof(mid)) - 1;
+
+	for (i = 0; i < __arraycount(h->h_master_sat); i++)
+		if (h->h_master_sat[i] == CDF_SECID_FREE)
+			break;
+
+#define CDF_SEC_LIMIT (UINT32_MAX / (64 * ss))
+	if ((nsatpersec > 0 &&
+	    h->h_num_sectors_in_master_sat > CDF_SEC_LIMIT / nsatpersec) ||
+	    i > CDF_SEC_LIMIT) {
+		DPRINTF(("Number of sectors in master SAT too big %u %"
+		    SIZE_T_FORMAT "u\n", h->h_num_sectors_in_master_sat, i));
+		errno = EFTYPE;
+		return -1;
+	}
+
+	sat->sat_len = h->h_num_sectors_in_master_sat * nsatpersec + i;
+	DPRINTF(("sat_len = %" SIZE_T_FORMAT "u ss = %" SIZE_T_FORMAT "u\n",
+	    sat->sat_len, ss));
+	if ((sat->sat_tab = CAST(cdf_secid_t *, CDF_CALLOC(sat->sat_len, ss)))
+	    == NULL)
+		return -1;
+
+	for (i = 0; i < __arraycount(h->h_master_sat); i++) {
+		if (h->h_master_sat[i] < 0)
+			break;
+		if (cdf_read_sector(info, sat->sat_tab, ss * i, ss, h,
+		    h->h_master_sat[i]) != CAST(ssize_t, ss)) {
+			DPRINTF(("Reading sector %d", h->h_master_sat[i]));
+			goto out1;
+		}
+	}
+
+	if ((msa = CAST(cdf_secid_t *, CDF_CALLOC(1, ss))) == NULL)
+		goto out1;
+
+	mid = h->h_secid_first_sector_in_master_sat;
+	for (j = 0; j < h->h_num_sectors_in_master_sat; j++) {
+		if (mid < 0)
+			goto out;
+		if (j >= CDF_LOOP_LIMIT) {
+			DPRINTF(("Reading master sector loop limit"));
+			goto out3;
+		}
+		if (cdf_read_sector(info, msa, 0, ss, h, mid) !=
+		    CAST(ssize_t, ss)) {
+			DPRINTF(("Reading master sector %d", mid));
+			goto out2;
+		}
+		for (k = 0; k < nsatpersec; k++, i++) {
+			sec = CDF_TOLE4(CAST(uint32_t, msa[k]));
+			if (sec < 0)
+				goto out;
+			if (i >= sat->sat_len) {
+			    DPRINTF(("Out of bounds reading MSA %"
+				SIZE_T_FORMAT "u >= %" SIZE_T_FORMAT "u",
+				i, sat->sat_len));
+			    goto out3;
+			}
+			if (cdf_read_sector(info, sat->sat_tab, ss * i, ss, h,
+			    sec) != CAST(ssize_t, ss)) {
+				DPRINTF(("Reading sector %d",
+				    CDF_TOLE4(msa[k])));
+				goto out2;
+			}
+		}
+		mid = CDF_TOLE4(CAST(uint32_t, msa[nsatpersec]));
+	}
+out:
+	sat->sat_len = i;
+	free(msa);
+	return 0;
+out3:
+	errno = EFTYPE;
+out2:
+	free(msa);
+out1:
+	free(sat->sat_tab);
+	return -1;
+}
+
+size_t
+cdf_count_chain(const cdf_sat_t *sat, cdf_secid_t sid, size_t size)
+{
+	size_t i, j;
+	cdf_secid_t maxsector = CAST(cdf_secid_t, (sat->sat_len * size)
+	    / sizeof(maxsector));
+
+	DPRINTF(("Chain:"));
+	if (sid == CDF_SECID_END_OF_CHAIN) {
+		/* 0-length chain. */
+		DPRINTF((" empty\n"));
+		return 0;
+	}
+
+	for (j = i = 0; sid >= 0; i++, j++) {
+		DPRINTF((" %d", sid));
+		if (j >= CDF_LOOP_LIMIT) {
+			DPRINTF(("Counting chain loop limit"));
+			goto out;
+		}
+		if (sid >= maxsector) {
+			DPRINTF(("Sector %d >= %d\n", sid, maxsector));
+			goto out;
+		}
+		sid = CDF_TOLE4(CAST(uint32_t, sat->sat_tab[sid]));
+	}
+	if (i == 0) {
+		DPRINTF((" none, sid: %d\n", sid));
+		goto out;
+
+	}
+	DPRINTF(("\n"));
+	return i;
+out:
+	errno = EFTYPE;
+	return CAST(size_t, -1);
+}
+
+int
+cdf_read_long_sector_chain(const cdf_info_t *info, const cdf_header_t *h,
+    const cdf_sat_t *sat, cdf_secid_t sid, size_t len, cdf_stream_t *scn)
+{
+	size_t ss = CDF_SEC_SIZE(h), i, j;
+	ssize_t nr;
+	scn->sst_tab = NULL;
+	scn->sst_len = cdf_count_chain(sat, sid, ss);
+	scn->sst_dirlen = MAX(h->h_min_size_standard_stream, len);
+	scn->sst_ss = ss;
+
+	if (sid == CDF_SECID_END_OF_CHAIN || len == 0)
+		return cdf_zero_stream(scn);
+
+	if (scn->sst_len == CAST(size_t, -1))
+		goto out;
+
+	scn->sst_tab = CDF_CALLOC(scn->sst_len, ss);
+	if (scn->sst_tab == NULL)
+		return cdf_zero_stream(scn);
+
+	for (j = i = 0; sid >= 0; i++, j++) {
+		if (j >= CDF_LOOP_LIMIT) {
+			DPRINTF(("Read long sector chain loop limit"));
+			goto out;
+		}
+		if (i >= scn->sst_len) {
+			DPRINTF(("Out of bounds reading long sector chain "
+			    "%" SIZE_T_FORMAT "u > %" SIZE_T_FORMAT "u\n", i,
+			    scn->sst_len));
+			goto out;
+		}
+		if ((nr = cdf_read_sector(info, scn->sst_tab, i * ss, ss, h,
+		    sid)) != CAST(ssize_t, ss)) {
+			if (i == scn->sst_len - 1 && nr > 0) {
+				/* Last sector might be truncated */
+				return 0;
+			}
+			DPRINTF(("Reading long sector chain %d", sid));
+			goto out;
+		}
+		sid = CDF_TOLE4(CAST(uint32_t, sat->sat_tab[sid]));
+	}
+	return 0;
+out:
+	errno = EFTYPE;
+	return cdf_zero_stream(scn);
+}
+
+int
+cdf_read_short_sector_chain(const cdf_header_t *h,
+    const cdf_sat_t *ssat, const cdf_stream_t *sst,
+    cdf_secid_t sid, size_t len, cdf_stream_t *scn)
+{
+	size_t ss = CDF_SHORT_SEC_SIZE(h), i, j;
+	scn->sst_tab = NULL;
+	scn->sst_len = cdf_count_chain(ssat, sid, CDF_SEC_SIZE(h));
+	scn->sst_dirlen = len;
+	scn->sst_ss = ss;
+
+	if (scn->sst_len == CAST(size_t, -1))
+		goto out;
+
+	scn->sst_tab = CDF_CALLOC(scn->sst_len, ss);
+	if (scn->sst_tab == NULL)
+		return cdf_zero_stream(scn);
+
+	for (j = i = 0; sid >= 0; i++, j++) {
+		if (j >= CDF_LOOP_LIMIT) {
+			DPRINTF(("Read short sector chain loop limit"));
+			goto out;
+		}
+		if (i >= scn->sst_len) {
+			DPRINTF(("Out of bounds reading short sector chain "
+			    "%" SIZE_T_FORMAT "u > %" SIZE_T_FORMAT "u\n",
+			    i, scn->sst_len));
+			goto out;
+		}
+		if (cdf_read_short_sector(sst, scn->sst_tab, i * ss, ss, h,
+		    sid) != CAST(ssize_t, ss)) {
+			DPRINTF(("Reading short sector chain %d", sid));
+			goto out;
+		}
+		sid = CDF_TOLE4(CAST(uint32_t, ssat->sat_tab[sid]));
+	}
+	return 0;
+out:
+	errno = EFTYPE;
+	return cdf_zero_stream(scn);
+}
+
+int
+cdf_read_sector_chain(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,
+    cdf_secid_t sid, size_t len, cdf_stream_t *scn)
+{
+
+	if (len < h->h_min_size_standard_stream && sst->sst_tab != NULL)
+		return cdf_read_short_sector_chain(h, ssat, sst, sid, len,
+		    scn);
+	else
+		return cdf_read_long_sector_chain(info, h, sat, sid, len, scn);
+}
+
+int
+cdf_read_dir(const cdf_info_t *info, const cdf_header_t *h,
+    const cdf_sat_t *sat, cdf_dir_t *dir)
+{
+	size_t i, j;
+	size_t ss = CDF_SEC_SIZE(h), ns, nd;
+	char *buf;
+	cdf_secid_t sid = h->h_secid_first_directory;
+
+	ns = cdf_count_chain(sat, sid, ss);
+	if (ns == CAST(size_t, -1))
+		return -1;
+
+	nd = ss / CDF_DIRECTORY_SIZE;
+
+	dir->dir_len = ns * nd;
+	dir->dir_tab = CAST(cdf_directory_t *,
+	    CDF_CALLOC(dir->dir_len, sizeof(dir->dir_tab[0])));
+	if (dir->dir_tab == NULL)
+		return -1;
+
+	if ((buf = CAST(char *, CDF_MALLOC(ss))) == NULL) {
+		free(dir->dir_tab);
+		return -1;
+	}
+
+	for (j = i = 0; i < ns; i++, j++) {
+		if (j >= CDF_LOOP_LIMIT) {
+			DPRINTF(("Read dir loop limit"));
+			goto out;
+		}
+		if (cdf_read_sector(info, buf, 0, ss, h, sid) !=
+		    CAST(ssize_t, ss)) {
+			DPRINTF(("Reading directory sector %d", sid));
+			goto out;
+		}
+		for (j = 0; j < nd; j++) {
+			cdf_unpack_dir(&dir->dir_tab[i * nd + j],
+			    &buf[j * CDF_DIRECTORY_SIZE]);
+		}
+		sid = CDF_TOLE4(CAST(uint32_t, sat->sat_tab[sid]));
+	}
+	if (NEED_SWAP)
+		for (i = 0; i < dir->dir_len; i++)
+			cdf_swap_dir(&dir->dir_tab[i]);
+	free(buf);
+	return 0;
+out:
+	free(dir->dir_tab);
+	free(buf);
+	errno = EFTYPE;
+	return -1;
+}
+
+
+int
+cdf_read_ssat(const cdf_info_t *info, const cdf_header_t *h,
+    const cdf_sat_t *sat, cdf_sat_t *ssat)
+{
+	size_t i, j;
+	size_t ss = CDF_SEC_SIZE(h);
+	cdf_secid_t sid = h->h_secid_first_sector_in_short_sat;
+
+	ssat->sat_tab = NULL;
+	ssat->sat_len = cdf_count_chain(sat, sid, ss);
+	if (ssat->sat_len == CAST(size_t, -1))
+		goto out;
+
+	ssat->sat_tab = CAST(cdf_secid_t *, CDF_CALLOC(ssat->sat_len, ss));
+	if (ssat->sat_tab == NULL)
+		goto out1;
+
+	for (j = i = 0; sid >= 0; i++, j++) {
+		if (j >= CDF_LOOP_LIMIT) {
+			DPRINTF(("Read short sat sector loop limit"));
+			goto out;
+		}
+		if (i >= ssat->sat_len) {
+			DPRINTF(("Out of bounds reading short sector chain "
+			    "%" SIZE_T_FORMAT "u > %" SIZE_T_FORMAT "u\n", i,
+			    ssat->sat_len));
+			goto out;
+		}
+		if (cdf_read_sector(info, ssat->sat_tab, i * ss, ss, h, sid) !=
+		    CAST(ssize_t, ss)) {
+			DPRINTF(("Reading short sat sector %d", sid));
+			goto out1;
+		}
+		sid = CDF_TOLE4(CAST(uint32_t, sat->sat_tab[sid]));
+	}
+	return 0;
+out:
+	errno = EFTYPE;
+out1:
+	free(ssat->sat_tab);
+	return -1;
+}
+
+int
+cdf_read_short_stream(const cdf_info_t *info, const cdf_header_t *h,
+    const cdf_sat_t *sat, const cdf_dir_t *dir, cdf_stream_t *scn,
+    const cdf_directory_t **root)
+{
+	size_t i;
+	const cdf_directory_t *d;
+
+	*root = NULL;
+	for (i = 0; i < dir->dir_len; i++)
+		if (dir->dir_tab[i].d_type == CDF_DIR_TYPE_ROOT_STORAGE)
+			break;
+
+	/* If the it is not there, just fake it; some docs don't have it */
+	if (i == dir->dir_len) {
+		DPRINTF(("Cannot find root storage dir\n"));
+		goto out;
+	}
+	d = &dir->dir_tab[i];
+	*root = d;
+
+	/* If the it is not there, just fake it; some docs don't have it */
+	if (d->d_stream_first_sector < 0) {
+		DPRINTF(("No first secror in dir\n"));
+		goto out;
+	}
+
+	return cdf_read_long_sector_chain(info, h, sat,
+	    d->d_stream_first_sector, d->d_size, scn);
+out:
+	scn->sst_tab = NULL;
+	(void)cdf_zero_stream(scn);
+	return 0;
+}
+
+static int
+cdf_namecmp(const char *d, const uint16_t *s, size_t l)
+{
+	for (; l--; d++, s++)
+		if (*d != CDF_TOLE2(*s))
+			return CAST(unsigned char, *d) - CDF_TOLE2(*s);
+	return 0;
+}
+
+int
+cdf_read_doc_summary_info(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)
+{
+	return cdf_read_user_stream(info, h, sat, ssat, sst, dir,
+	    "\05DocumentSummaryInformation", scn);
+}
+
+int
+cdf_read_summary_info(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)
+{
+	return cdf_read_user_stream(info, h, sat, ssat, sst, dir,
+	    "\05SummaryInformation", scn);
+}
+
+int
+cdf_read_user_stream(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, const char *name, cdf_stream_t *scn)
+{
+	const cdf_directory_t *d;
+	int i = cdf_find_stream(dir, name, CDF_DIR_TYPE_USER_STREAM);
+
+	if (i <= 0) {
+		memset(scn, 0, sizeof(*scn));
+		return -1;
+	}
+
+	d = &dir->dir_tab[i - 1];
+	return cdf_read_sector_chain(info, h, sat, ssat, sst,
+	    d->d_stream_first_sector, d->d_size, scn);
+}
+
+int
+cdf_find_stream(const cdf_dir_t *dir, const char *name, int type)
+{
+	size_t i, name_len = strlen(name) + 1;
+
+	for (i = dir->dir_len; i > 0; i--)
+		if (dir->dir_tab[i - 1].d_type == type &&
+		    cdf_namecmp(name, dir->dir_tab[i - 1].d_name, name_len)
+		    == 0)
+			break;
+	if (i > 0)
+		return CAST(int, i);
+
+	DPRINTF(("Cannot find type %d `%s'\n", type, name));
+	errno = ESRCH;
+	return 0;
+}
+
+#define CDF_SHLEN_LIMIT (UINT32_MAX / 64)
+#define CDF_PROP_LIMIT (UINT32_MAX / (64 * sizeof(cdf_property_info_t)))
+
+static const void *
+cdf_offset(const void *p, size_t l)
+{
+	return CAST(const void *, CAST(const uint8_t *, p) + l);
+}
+
+static const uint8_t *
+cdf_get_property_info_pos(const cdf_stream_t *sst, const cdf_header_t *h,
+    const uint8_t *p, const uint8_t *e, size_t i)
+{
+	size_t tail = (i << 1) + 1;
+	size_t ofs;
+
+	if (p >= e) {
+		DPRINTF(("Past end %p < %p\n", e, p));
+		return NULL;
+	}
+
+	if (cdf_check_stream_offset(sst, h, p, (tail + 1) * sizeof(uint32_t),
+	    __LINE__) == -1)
+		return NULL;
+
+	ofs = CDF_GETUINT32(p, tail);
+	if (ofs < 2 * sizeof(uint32_t)) {
+		DPRINTF(("Offset too small %zu\n", ofs));
+		return NULL;
+	}
+
+	ofs -= 2 * sizeof(uint32_t);
+	if (ofs > CAST(size_t, e - p)) {
+		DPRINTF(("Offset too big %zu %td\n", ofs, e - p));
+		return NULL;
+	}
+
+	return CAST(const uint8_t *, cdf_offset(CAST(const void *, p), ofs));
+}
+
+static cdf_property_info_t *
+cdf_grow_info(cdf_property_info_t **info, size_t *maxcount, size_t incr)
+{
+	cdf_property_info_t *inp;
+	size_t newcount = *maxcount + incr;
+
+	if (newcount > CDF_PROP_LIMIT) {
+		DPRINTF(("exceeded property limit %" SIZE_T_FORMAT "u > %"
+		    SIZE_T_FORMAT "u\n", newcount, CDF_PROP_LIMIT));
+		goto out;
+	}
+	inp = CAST(cdf_property_info_t *,
+	    CDF_REALLOC(*info, newcount * sizeof(*inp)));
+	if (inp == NULL)
+		goto out;
+
+	*info = inp;
+	*maxcount = newcount;
+	return inp;
+out:
+	free(*info);
+	*maxcount = 0;
+	*info = NULL;
+	return NULL;
+}
+
+static int
+cdf_copy_info(cdf_property_info_t *inp, const void *p, const void *e,
+    size_t len)
+{
+	if (inp->pi_type & CDF_VECTOR)
+		return 0;
+
+	if (CAST(size_t, CAST(const char *, e) - CAST(const char *, p)) < len)
+		return 0;
+
+	(void)memcpy(&inp->pi_val, p, len);
+
+	switch (len) {
+	case 2:
+		inp->pi_u16 = CDF_TOLE2(inp->pi_u16);
+		break;
+	case 4:
+		inp->pi_u32 = CDF_TOLE4(inp->pi_u32);
+		break;
+	case 8:
+		inp->pi_u64 = CDF_TOLE8(inp->pi_u64);
+		break;
+	default:
+		abort();
+	}
+	return 1;
+}
+
+int
+cdf_read_property_info(const cdf_stream_t *sst, const cdf_header_t *h,
+    uint32_t offs, cdf_property_info_t **info, size_t *count, size_t *maxcount)
+{
+	const cdf_section_header_t *shp;
+	cdf_section_header_t sh;
+	const uint8_t *p, *q, *e;
+	size_t i, o4, nelements, j, slen, left;
+	cdf_property_info_t *inp;
+
+	if (offs > UINT32_MAX / 4) {
+		errno = EFTYPE;
+		goto out;
+	}
+	shp = CAST(const cdf_section_header_t *,
+	    cdf_offset(sst->sst_tab, offs));
+	if (cdf_check_stream_offset(sst, h, shp, sizeof(*shp), __LINE__) == -1)
+		goto out;
+	sh.sh_len = CDF_TOLE4(shp->sh_len);
+	if (sh.sh_len > CDF_SHLEN_LIMIT) {
+		errno = EFTYPE;
+		goto out;
+	}
+
+	if (cdf_check_stream_offset(sst, h, shp, sh.sh_len, __LINE__) == -1)
+		goto out;
+
+	sh.sh_properties = CDF_TOLE4(shp->sh_properties);
+	DPRINTF(("section len: %u properties %u\n", sh.sh_len,
+	    sh.sh_properties));
+	if (sh.sh_properties > CDF_PROP_LIMIT)
+		goto out;
+	inp = cdf_grow_info(info, maxcount, sh.sh_properties);
+	if (inp == NULL)
+		goto out;
+	inp += *count;
+	*count += sh.sh_properties;
+	p = CAST(const uint8_t *, cdf_offset(sst->sst_tab, offs + sizeof(sh)));
+	e = CAST(const uint8_t *, cdf_offset(shp, sh.sh_len));
+	if (p >= e || cdf_check_stream_offset(sst, h, e, 0, __LINE__) == -1)
+		goto out;
+
+	for (i = 0; i < sh.sh_properties; i++) {
+		if ((q = cdf_get_property_info_pos(sst, h, p, e, i)) == NULL)
+			goto out;
+		inp[i].pi_id = CDF_GETUINT32(p, i << 1);
+		left = CAST(size_t, e - q);
+		if (left < sizeof(uint32_t)) {
+			DPRINTF(("short info (no type)_\n"));
+			goto out;
+		}
+		inp[i].pi_type = CDF_GETUINT32(q, 0);
+		DPRINTF(("%" SIZE_T_FORMAT "u) id=%#x type=%#x offs=%#tx,%#x\n",
+		    i, inp[i].pi_id, inp[i].pi_type, q - p, offs));
+		if (inp[i].pi_type & CDF_VECTOR) {
+			if (left < sizeof(uint32_t) * 2) {
+				DPRINTF(("missing CDF_VECTOR length\n"));
+				goto out;
+			}
+			nelements = CDF_GETUINT32(q, 1);
+			if (nelements > CDF_ELEMENT_LIMIT || nelements == 0) {
+				DPRINTF(("CDF_VECTOR with nelements == %"
+				    SIZE_T_FORMAT "u\n", nelements));
+				goto out;
+			}
+			slen = 2;
+		} else {
+			nelements = 1;
+			slen = 1;
+		}
+		o4 = slen * sizeof(uint32_t);
+		if (inp[i].pi_type & (CDF_ARRAY|CDF_BYREF|CDF_RESERVED))
+			goto unknown;
+		switch (inp[i].pi_type & CDF_TYPEMASK) {
+		case CDF_NULL:
+		case CDF_EMPTY:
+			break;
+		case CDF_SIGNED16:
+			if (!cdf_copy_info(&inp[i], &q[o4], e, sizeof(int16_t)))
+				goto unknown;
+			break;
+		case CDF_SIGNED32:
+		case CDF_BOOL:
+		case CDF_UNSIGNED32:
+		case CDF_FLOAT:
+			if (!cdf_copy_info(&inp[i], &q[o4], e, sizeof(int32_t)))
+				goto unknown;
+			break;
+		case CDF_SIGNED64:
+		case CDF_UNSIGNED64:
+		case CDF_DOUBLE:
+		case CDF_FILETIME:
+			if (!cdf_copy_info(&inp[i], &q[o4], e, sizeof(int64_t)))
+				goto unknown;
+			break;
+		case CDF_LENGTH32_STRING:
+		case CDF_LENGTH32_WSTRING:
+			if (nelements > 1) {
+				size_t nelem = inp - *info;
+				inp = cdf_grow_info(info, maxcount, nelements);
+				if (inp == NULL)
+					goto out;
+				inp += nelem;
+			}
+			for (j = 0; j < nelements && i < sh.sh_properties;
+			    j++, i++)
+			{
+				uint32_t l;
+
+				if (o4 + sizeof(uint32_t) > left)
+					goto out;
+
+				l = CDF_GETUINT32(q, slen);
+				o4 += sizeof(uint32_t);
+				if (o4 + l > left)
+					goto out;
+
+				inp[i].pi_str.s_len = l;
+				inp[i].pi_str.s_buf = CAST(const char *,
+				    CAST(const void *, &q[o4]));
+
+				DPRINTF(("o=%" SIZE_T_FORMAT "u l=%d(%"
+				    SIZE_T_FORMAT "u), t=%" SIZE_T_FORMAT
+				    "u s=%.*s\n", o4, l,
+				    CDF_ROUND(l, sizeof(l)),
+				    left, (int)l, inp[i].pi_str.s_buf));
+
+				if (l & 1)
+					l++;
+
+				slen += l >> 1;
+				o4 = slen * sizeof(uint32_t);
+			}
+			i--;
+			break;
+		case CDF_CLIPBOARD:
+			if (inp[i].pi_type & CDF_VECTOR)
+				goto unknown;
+			break;
+		default:
+		unknown:
+			memset(&inp[i].pi_val, 0, sizeof(inp[i].pi_val));
+			DPRINTF(("Don't know how to deal with %#x\n",
+			    inp[i].pi_type));
+			break;
+		}
+	}
+	return 0;
+out:
+	free(*info);
+	*info = NULL;
+	*count = 0;
+	*maxcount = 0;
+	errno = EFTYPE;
+	return -1;
+}
+
+int
+cdf_unpack_summary_info(const cdf_stream_t *sst, const cdf_header_t *h,
+    cdf_summary_info_header_t *ssi, cdf_property_info_t **info, size_t *count)
+{
+	size_t maxcount;
+	const cdf_summary_info_header_t *si =
+	    CAST(const cdf_summary_info_header_t *, sst->sst_tab);
+	const cdf_section_declaration_t *sd =
+	    CAST(const cdf_section_declaration_t *, RCAST(const void *,
+	    RCAST(const char *, sst->sst_tab)
+	    + CDF_SECTION_DECLARATION_OFFSET));
+
+	if (cdf_check_stream_offset(sst, h, si, sizeof(*si), __LINE__) == -1 ||
+	    cdf_check_stream_offset(sst, h, sd, sizeof(*sd), __LINE__) == -1)
+		return -1;
+	ssi->si_byte_order = CDF_TOLE2(si->si_byte_order);
+	ssi->si_os_version = CDF_TOLE2(si->si_os_version);
+	ssi->si_os = CDF_TOLE2(si->si_os);
+	ssi->si_class = si->si_class;
+	cdf_swap_class(&ssi->si_class);
+	ssi->si_count = CDF_TOLE4(si->si_count);
+	*count = 0;
+	maxcount = 0;
+	*info = NULL;
+	if (cdf_read_property_info(sst, h, CDF_TOLE4(sd->sd_offset), info,
+	    count, &maxcount) == -1)
+		return -1;
+	return 0;
+}
+
+
+#define extract_catalog_field(t, f, l) \
+    if (b + l + sizeof(cep->f) > eb) { \
+	    cep->ce_namlen = 0; \
+	    break; \
+    } \
+    memcpy(&cep->f, b + (l), sizeof(cep->f)); \
+    ce[i].f = CAST(t, CDF_TOLE(cep->f))
+
+int
+cdf_unpack_catalog(const cdf_header_t *h, const cdf_stream_t *sst,
+    cdf_catalog_t **cat)
+{
+	size_t ss = cdf_check_stream(sst, h);
+	const char *b = CAST(const char *, sst->sst_tab);
+	const char *nb, *eb = b + ss * sst->sst_len;
+	size_t nr, i, j, k;
+	cdf_catalog_entry_t *ce;
+	uint16_t reclen;
+	const uint16_t *np;
+
+	for (nr = 0;; nr++) {
+		memcpy(&reclen, b, sizeof(reclen));
+		reclen = CDF_TOLE2(reclen);
+		if (reclen == 0)
+			break;
+		b += reclen;
+		if (b > eb)
+		    break;
+	}
+	if (nr == 0)
+		return -1;
+	nr--;
+	*cat = CAST(cdf_catalog_t *,
+	    CDF_MALLOC(sizeof(cdf_catalog_t) + nr * sizeof(*ce)));
+	if (*cat == NULL)
+		return -1;
+	ce = (*cat)->cat_e;
+	memset(ce, 0, nr * sizeof(*ce));
+	b = CAST(const char *, sst->sst_tab);
+	for (j = i = 0; i < nr; b += reclen) {
+		cdf_catalog_entry_t *cep = &ce[j];
+		uint16_t rlen;
+
+		extract_catalog_field(uint16_t, ce_namlen, 0);
+		extract_catalog_field(uint16_t, ce_num, 4);
+		extract_catalog_field(uint64_t, ce_timestamp, 8);
+		reclen = cep->ce_namlen;
+
+		if (reclen < 14) {
+			cep->ce_namlen = 0;
+			continue;
+		}
+
+		cep->ce_namlen = __arraycount(cep->ce_name) - 1;
+		rlen = reclen - 14;
+		if (cep->ce_namlen > rlen)
+			cep->ce_namlen = rlen;
+
+		np = CAST(const uint16_t *, CAST(const void *, (b + 16)));
+		nb = CAST(const char *, CAST(const void *,
+		    (np + cep->ce_namlen)));
+		if (nb > eb) {
+			cep->ce_namlen = 0;
+			break;
+		}
+
+		for (k = 0; k < cep->ce_namlen; k++)
+			cep->ce_name[k] = np[k]; /* XXX: CDF_TOLE2? */
+		cep->ce_name[cep->ce_namlen] = 0;
+		j = i;
+		i++;
+	}
+	(*cat)->cat_num = j;
+	return 0;
+}
+
+int
+cdf_print_classid(char *buf, size_t buflen, const cdf_classid_t *id)
+{
+	return snprintf(buf, buflen, "%.8x-%.4x-%.4x-%.2x%.2x-"
+	    "%.2x%.2x%.2x%.2x%.2x%.2x", id->cl_dword, id->cl_word[0],
+	    id->cl_word[1], id->cl_two[0], id->cl_two[1], id->cl_six[0],
+	    id->cl_six[1], id->cl_six[2], id->cl_six[3], id->cl_six[4],
+	    id->cl_six[5]);
+}
+
+static const struct {
+	uint32_t v;
+	const char *n;
+} vn[] = {
+	{ CDF_PROPERTY_CODE_PAGE, "Code page" },
+	{ CDF_PROPERTY_TITLE, "Title" },
+	{ CDF_PROPERTY_SUBJECT, "Subject" },
+	{ CDF_PROPERTY_AUTHOR, "Author" },
+	{ CDF_PROPERTY_KEYWORDS, "Keywords" },
+	{ CDF_PROPERTY_COMMENTS, "Comments" },
+	{ CDF_PROPERTY_TEMPLATE, "Template" },
+	{ CDF_PROPERTY_LAST_SAVED_BY, "Last Saved By" },
+	{ CDF_PROPERTY_REVISION_NUMBER, "Revision Number" },
+	{ CDF_PROPERTY_TOTAL_EDITING_TIME, "Total Editing Time" },
+	{ CDF_PROPERTY_LAST_PRINTED, "Last Printed" },
+	{ CDF_PROPERTY_CREATE_TIME, "Create Time/Date" },
+	{ CDF_PROPERTY_LAST_SAVED_TIME, "Last Saved Time/Date" },
+	{ CDF_PROPERTY_NUMBER_OF_PAGES, "Number of Pages" },
+	{ CDF_PROPERTY_NUMBER_OF_WORDS, "Number of Words" },
+	{ CDF_PROPERTY_NUMBER_OF_CHARACTERS, "Number of Characters" },
+	{ CDF_PROPERTY_THUMBNAIL, "Thumbnail" },
+	{ CDF_PROPERTY_NAME_OF_APPLICATION, "Name of Creating Application" },
+	{ CDF_PROPERTY_SECURITY, "Security" },
+	{ CDF_PROPERTY_LOCALE_ID, "Locale ID" },
+};
+
+int
+cdf_print_property_name(char *buf, size_t bufsiz, uint32_t p)
+{
+	size_t i;
+
+	for (i = 0; i < __arraycount(vn); i++)
+		if (vn[i].v == p)
+			return snprintf(buf, bufsiz, "%s", vn[i].n);
+	return snprintf(buf, bufsiz, "%#x", p);
+}
+
+int
+cdf_print_elapsed_time(char *buf, size_t bufsiz, cdf_timestamp_t ts)
+{
+	int len = 0;
+	int days, hours, mins, secs;
+
+	ts /= CDF_TIME_PREC;
+	secs = CAST(int, ts % 60);
+	ts /= 60;
+	mins = CAST(int, ts % 60);
+	ts /= 60;
+	hours = CAST(int, ts % 24);
+	ts /= 24;
+	days = CAST(int, ts);
+
+	if (days) {
+		len += snprintf(buf + len, bufsiz - len, "%dd+", days);
+		if (CAST(size_t, len) >= bufsiz)
+			return len;
+	}
+
+	if (days || hours) {
+		len += snprintf(buf + len, bufsiz - len, "%.2d:", hours);
+		if (CAST(size_t, len) >= bufsiz)
+			return len;
+	}
+
+	len += snprintf(buf + len, bufsiz - len, "%.2d:", mins);
+	if (CAST(size_t, len) >= bufsiz)
+		return len;
+
+	len += snprintf(buf + len, bufsiz - len, "%.2d", secs);
+	return len;
+}
+
+char *
+cdf_u16tos8(char *buf, size_t len, const uint16_t *p)
+{
+	size_t i;
+	for (i = 0; i < len && p[i]; i++)
+		buf[i] = CAST(char, p[i]);
+	buf[i] = '\0';
+	return buf;
+}
+
+#ifdef CDF_DEBUG
+void
+cdf_dump_header(const cdf_header_t *h)
+{
+	size_t i;
+
+#define DUMP(a, b) (void)fprintf(stderr, "%40.40s = " a "\n", # b, h->h_ ## b)
+#define DUMP2(a, b) (void)fprintf(stderr, "%40.40s = " a " (" a ")\n", # b, \
+    h->h_ ## b, 1 << h->h_ ## b)
+	DUMP("%d", revision);
+	DUMP("%d", version);
+	DUMP("%#x", byte_order);
+	DUMP2("%d", sec_size_p2);
+	DUMP2("%d", short_sec_size_p2);
+	DUMP("%d", num_sectors_in_sat);
+	DUMP("%d", secid_first_directory);
+	DUMP("%d", min_size_standard_stream);
+	DUMP("%d", secid_first_sector_in_short_sat);
+	DUMP("%d", num_sectors_in_short_sat);
+	DUMP("%d", secid_first_sector_in_master_sat);
+	DUMP("%d", num_sectors_in_master_sat);
+	for (i = 0; i < __arraycount(h->h_master_sat); i++) {
+		if (h->h_master_sat[i] == CDF_SECID_FREE)
+			break;
+		(void)fprintf(stderr, "%35.35s[%.3" SIZE_T_FORMAT "u] = %d\n",
+		    "master_sat", i, h->h_master_sat[i]);
+	}
+}
+
+void
+cdf_dump_sat(const char *prefix, const cdf_sat_t *sat, size_t size)
+{
+	size_t i, j, s = size / sizeof(cdf_secid_t);
+
+	for (i = 0; i < sat->sat_len; i++) {
+		(void)fprintf(stderr, "%s[%" SIZE_T_FORMAT "u]:\n%.6"
+		    SIZE_T_FORMAT "u: ", prefix, i, i * s);
+		for (j = 0; j < s; j++) {
+			(void)fprintf(stderr, "%5d, ",
+			    CDF_TOLE4(sat->sat_tab[s * i + j]));
+			if ((j + 1) % 10 == 0)
+				(void)fprintf(stderr, "\n%.6" SIZE_T_FORMAT
+				    "u: ", i * s + j + 1);
+		}
+		(void)fprintf(stderr, "\n");
+	}
+}
+
+void
+cdf_dump(const void *v, size_t len)
+{
+	size_t i, j;
+	const unsigned char *p = v;
+	char abuf[16];
+
+	(void)fprintf(stderr, "%.4x: ", 0);
+	for (i = 0, j = 0; i < len; i++, p++) {
+		(void)fprintf(stderr, "%.2x ", *p);
+		abuf[j++] = isprint(*p) ? *p : '.';
+		if (j == 16) {
+			j = 0;
+			abuf[15] = '\0';
+			(void)fprintf(stderr, "%s\n%.4" SIZE_T_FORMAT "x: ",
+			    abuf, i + 1);
+		}
+	}
+	(void)fprintf(stderr, "\n");
+}
+
+void
+cdf_dump_stream(const cdf_stream_t *sst)
+{
+	size_t ss = sst->sst_ss;
+	cdf_dump(sst->sst_tab, ss * sst->sst_len);
+}
+
+void
+cdf_dump_dir(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)
+{
+	size_t i, j;
+	cdf_directory_t *d;
+	char name[__arraycount(d->d_name)];
+	cdf_stream_t scn;
+	struct timespec ts;
+
+	static const char *types[] = { "empty", "user storage",
+	    "user stream", "lockbytes", "property", "root storage" };
+
+	for (i = 0; i < dir->dir_len; i++) {
+		char buf[26];
+		d = &dir->dir_tab[i];
+		for (j = 0; j < sizeof(name); j++)
+			name[j] = (char)CDF_TOLE2(d->d_name[j]);
+		(void)fprintf(stderr, "Directory %" SIZE_T_FORMAT "u: %s\n",
+		    i, name);
+		if (d->d_type < __arraycount(types))
+			(void)fprintf(stderr, "Type: %s\n", types[d->d_type]);
+		else
+			(void)fprintf(stderr, "Type: %d\n", d->d_type);
+		(void)fprintf(stderr, "Color: %s\n",
+		    d->d_color ? "black" : "red");
+		(void)fprintf(stderr, "Left child: %d\n", d->d_left_child);
+		(void)fprintf(stderr, "Right child: %d\n", d->d_right_child);
+		(void)fprintf(stderr, "Flags: %#x\n", d->d_flags);
+		cdf_timestamp_to_timespec(&ts, d->d_created);
+		(void)fprintf(stderr, "Created %s", cdf_ctime(&ts.tv_sec, buf));
+		cdf_timestamp_to_timespec(&ts, d->d_modified);
+		(void)fprintf(stderr, "Modified %s",
+		    cdf_ctime(&ts.tv_sec, buf));
+		(void)fprintf(stderr, "Stream %d\n", d->d_stream_first_sector);
+		(void)fprintf(stderr, "Size %d\n", d->d_size);
+		switch (d->d_type) {
+		case CDF_DIR_TYPE_USER_STORAGE:
+			(void)fprintf(stderr, "Storage: %d\n", d->d_storage);
+			break;
+		case CDF_DIR_TYPE_USER_STREAM:
+			if (sst == NULL)
+				break;
+			if (cdf_read_sector_chain(info, h, sat, ssat, sst,
+			    d->d_stream_first_sector, d->d_size, &scn) == -1) {
+				warn("Can't read stream for %s at %d len %d",
+				    name, d->d_stream_first_sector, d->d_size);
+				break;
+			}
+			cdf_dump_stream(&scn);
+			free(scn.sst_tab);
+			break;
+		default:
+			break;
+		}
+
+	}
+}
+
+void
+cdf_dump_property_info(const cdf_property_info_t *info, size_t count)
+{
+	cdf_timestamp_t tp;
+	struct timespec ts;
+	char buf[64];
+	size_t i, j;
+
+	for (i = 0; i < count; i++) {
+		cdf_print_property_name(buf, sizeof(buf), info[i].pi_id);
+		(void)fprintf(stderr, "%" SIZE_T_FORMAT "u) %s: ", i, buf);
+		switch (info[i].pi_type) {
+		case CDF_NULL:
+			break;
+		case CDF_SIGNED16:
+			(void)fprintf(stderr, "signed 16 [%hd]\n",
+			    info[i].pi_s16);
+			break;
+		case CDF_SIGNED32:
+			(void)fprintf(stderr, "signed 32 [%d]\n",
+			    info[i].pi_s32);
+			break;
+		case CDF_UNSIGNED32:
+			(void)fprintf(stderr, "unsigned 32 [%u]\n",
+			    info[i].pi_u32);
+			break;
+		case CDF_FLOAT:
+			(void)fprintf(stderr, "float [%g]\n",
+			    info[i].pi_f);
+			break;
+		case CDF_DOUBLE:
+			(void)fprintf(stderr, "double [%g]\n",
+			    info[i].pi_d);
+			break;
+		case CDF_LENGTH32_STRING:
+			(void)fprintf(stderr, "string %u [%.*s]\n",
+			    info[i].pi_str.s_len,
+			    info[i].pi_str.s_len, info[i].pi_str.s_buf);
+			break;
+		case CDF_LENGTH32_WSTRING:
+			(void)fprintf(stderr, "string %u [",
+			    info[i].pi_str.s_len);
+			for (j = 0; j < info[i].pi_str.s_len - 1; j++)
+			    (void)fputc(info[i].pi_str.s_buf[j << 1], stderr);
+			(void)fprintf(stderr, "]\n");
+			break;
+		case CDF_FILETIME:
+			tp = info[i].pi_tp;
+			if (tp < 1000000000000000LL) {
+				cdf_print_elapsed_time(buf, sizeof(buf), tp);
+				(void)fprintf(stderr, "timestamp %s\n", buf);
+			} else {
+				char tbuf[26];
+				cdf_timestamp_to_timespec(&ts, tp);
+				(void)fprintf(stderr, "timestamp %s",
+				    cdf_ctime(&ts.tv_sec, tbuf));
+			}
+			break;
+		case CDF_CLIPBOARD:
+			(void)fprintf(stderr, "CLIPBOARD %u\n", info[i].pi_u32);
+			break;
+		default:
+			DPRINTF(("Don't know how to deal with %#x\n",
+			    info[i].pi_type));
+			break;
+		}
+	}
+}
+
+
+void
+cdf_dump_summary_info(const cdf_header_t *h, const cdf_stream_t *sst)
+{
+	char buf[128];
+	cdf_summary_info_header_t ssi;
+	cdf_property_info_t *info;
+	size_t count;
+
+	(void)&h;
+	if (cdf_unpack_summary_info(sst, h, &ssi, &info, &count) == -1)
+		return;
+	(void)fprintf(stderr, "Endian: %#x\n", ssi.si_byte_order);
+	(void)fprintf(stderr, "Os Version %d.%d\n", ssi.si_os_version & 0xff,
+	    ssi.si_os_version >> 8);
+	(void)fprintf(stderr, "Os %d\n", ssi.si_os);
+	cdf_print_classid(buf, sizeof(buf), &ssi.si_class);
+	(void)fprintf(stderr, "Class %s\n", buf);
+	(void)fprintf(stderr, "Count %d\n", ssi.si_count);
+	cdf_dump_property_info(info, count);
+	free(info);
+}
+
+
+void
+cdf_dump_catalog(const cdf_header_t *h, const cdf_stream_t *sst)
+{
+	cdf_catalog_t *cat;
+	cdf_unpack_catalog(h, sst, &cat);
+	const cdf_catalog_entry_t *ce = cat->cat_e;
+	struct timespec ts;
+	char tbuf[64], sbuf[256];
+	size_t i;
+
+	printf("Catalog:\n");
+	for (i = 0; i < cat->cat_num; i++) {
+		cdf_timestamp_to_timespec(&ts, ce[i].ce_timestamp);
+		printf("\t%d %s %s", ce[i].ce_num,
+		    cdf_u16tos8(sbuf, ce[i].ce_namlen, ce[i].ce_name),
+		    cdf_ctime(&ts.tv_sec, tbuf));
+	}
+	free(cat);
+}
+
+#endif
+
+#ifdef TEST
+int
+main(int argc, char *argv[])
+{
+	int i;
+	cdf_header_t h;
+	cdf_sat_t sat, ssat;
+	cdf_stream_t sst, scn;
+	cdf_dir_t dir;
+	cdf_info_t info;
+	const cdf_directory_t *root;
+#ifdef __linux__
+#define getprogname() __progname
+	extern char *__progname;
+#endif
+	if (argc < 2) {
+		(void)fprintf(stderr, "Usage: %s <filename>\n", getprogname());
+		return -1;
+	}
+
+	info.i_buf = NULL;
+	info.i_len = 0;
+	for (i = 1; i < argc; i++) {
+		if ((info.i_fd = open(argv[1], O_RDONLY)) == -1)
+			err(EXIT_FAILURE, "Cannot open `%s'", argv[1]);
+
+		if (cdf_read_header(&info, &h) == -1)
+			err(EXIT_FAILURE, "Cannot read header");
+#ifdef CDF_DEBUG
+		cdf_dump_header(&h);
+#endif
+
+		if (cdf_read_sat(&info, &h, &sat) == -1)
+			err(EXIT_FAILURE, "Cannot read sat");
+#ifdef CDF_DEBUG
+		cdf_dump_sat("SAT", &sat, CDF_SEC_SIZE(&h));
+#endif
+
+		if (cdf_read_ssat(&info, &h, &sat, &ssat) == -1)
+			err(EXIT_FAILURE, "Cannot read ssat");
+#ifdef CDF_DEBUG
+		cdf_dump_sat("SSAT", &ssat, CDF_SHORT_SEC_SIZE(&h));
+#endif
+
+		if (cdf_read_dir(&info, &h, &sat, &dir) == -1)
+			err(EXIT_FAILURE, "Cannot read dir");
+
+		if (cdf_read_short_stream(&info, &h, &sat, &dir, &sst, &root)
+		    == -1)
+			err(EXIT_FAILURE, "Cannot read short stream");
+#ifdef CDF_DEBUG
+		cdf_dump_stream(&sst);
+#endif
+
+#ifdef CDF_DEBUG
+		cdf_dump_dir(&info, &h, &sat, &ssat, &sst, &dir);
+#endif
+
+
+		if (cdf_read_summary_info(&info, &h, &sat, &ssat, &sst, &dir,
+		    &scn) == -1)
+			warn("Cannot read summary info");
+#ifdef CDF_DEBUG
+		else
+			cdf_dump_summary_info(&h, &scn);
+#endif
+		if (cdf_read_user_stream(&info, &h, &sat, &ssat, &sst,
+		    &dir, "Catalog", &scn) == -1)
+			warn("Cannot read catalog");
+#ifdef CDF_DEBUG
+		else
+			cdf_dump_catalog(&h, &scn);
+#endif
+
+		(void)close(info.i_fd);
+	}
+
+	return 0;
+}
+#endif