aboutsummaryrefslogtreecommitdiffstats
path: root/cdf.c
diff options
context:
space:
mode:
Diffstat (limited to 'cdf.c')
-rw-r--r--cdf.c1105
1 files changed, 1105 insertions, 0 deletions
diff --git a/cdf.c b/cdf.c
new file mode 100644
index 000000000000..0c66d11bdb12
--- /dev/null
+++ b/cdf.c
@@ -0,0 +1,1105 @@
+/*-
+ * 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
+ */
+
+#include "file.h"
+
+#ifndef lint
+FILE_RCSID("@(#)$File: cdf.c,v 1.17 2009/02/03 20:27:51 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>
+
+#ifndef EFTYPE
+#define EFTYPE EINVAL
+#endif
+
+#include "cdf.h"
+
+#ifndef __arraycount
+#define __arraycount(a) (sizeof(a) / sizeof(a[0]))
+#endif
+
+#ifdef CDF_DEBUG
+#define DPRINTF(a) printf a
+#else
+#define DPRINTF(a)
+#endif
+
+static union {
+ char s[4];
+ uint32_t u;
+} cdf_bo;
+
+#define NEED_SWAP (cdf_bo.u == (uint32_t)0x01020304)
+
+#define CDF_TOLE8(x) (NEED_SWAP ? cdf_tole8(x) : (uint64_t)(x))
+#define CDF_TOLE4(x) (NEED_SWAP ? cdf_tole4(x) : (uint32_t)(x))
+#define CDF_TOLE2(x) (NEED_SWAP ? cdf_tole2(x) : (uint16_t)(x))
+
+/*
+ * swap a short
+ */
+uint16_t
+cdf_tole2(uint16_t sv)
+{
+ uint16_t rv;
+ uint8_t *s = (uint8_t *)(void *)&sv;
+ uint8_t *d = (uint8_t *)(void *)&rv;
+ d[0] = s[1];
+ d[1] = s[0];
+ return rv;
+}
+
+/*
+ * swap an int
+ */
+uint32_t
+cdf_tole4(uint32_t sv)
+{
+ uint32_t rv;
+ uint8_t *s = (uint8_t *)(void *)&sv;
+ uint8_t *d = (uint8_t *)(void *)&rv;
+ d[0] = s[3];
+ d[1] = s[2];
+ d[2] = s[1];
+ d[3] = s[0];
+ return rv;
+}
+
+/*
+ * swap a quad
+ */
+uint64_t
+cdf_tole8(uint64_t sv)
+{
+ uint64_t rv;
+ uint8_t *s = (uint8_t *)(void *)&sv;
+ uint8_t *d = (uint8_t *)(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;
+}
+
+#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)
+
+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(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(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(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(d->d_left_child);
+ d->d_right_child = CDF_TOLE4(d->d_right_child);
+ d->d_storage = CDF_TOLE4(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(d->d_created);
+ d->d_modified = CDF_TOLE8(d->d_modified);
+ d->d_stream_first_sector = CDF_TOLE4(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_read_header(int fd, cdf_header_t *h)
+{
+ (void)memcpy(cdf_bo.s, "\01\02\03\04", 4);
+ char buf[512];
+ if (lseek(fd, (off_t)0, SEEK_SET) == (off_t)-1)
+ return -1;
+ if (read(fd, buf, sizeof(buf)) != sizeof(buf))
+ return -1;
+ cdf_unpack_header(h, buf);
+ cdf_swap_header(h);
+ if (h->h_magic != CDF_MAGIC) {
+ DPRINTF(("Bad magic 0x%x != 0x$x\n", h->h_magic, CDF_MAGIC));
+ errno = EFTYPE;
+ return -1;
+ }
+ return 0;
+}
+
+
+ssize_t
+cdf_read_sector(int fd, void *buf, size_t offs, size_t len,
+ const cdf_header_t *h, cdf_secid_t id)
+{
+ assert((size_t)CDF_SEC_SIZE(h) == len);
+ if (lseek(fd, (off_t)CDF_SEC_POS(h, id), SEEK_SET) == (off_t)-1)
+ return -1;
+ return read(fd, ((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)
+{
+ assert((size_t)CDF_SHORT_SEC_SIZE(h) == len);
+ (void)memcpy(((char *)buf) + offs,
+ ((const char *)sst->sst_tab) + CDF_SHORT_SEC_POS(h, id), len);
+ return len;
+}
+
+/*
+ * Read the sector allocation table.
+ */
+int
+cdf_read_sat(int fd, 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;
+
+ for (i = 0; i < __arraycount(h->h_master_sat); i++)
+ if (h->h_master_sat[i] == CDF_SECID_FREE)
+ break;
+
+ sat->sat_len = (h->h_num_sectors_in_master_sat + i);
+ if ((sat->sat_tab = 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(fd, sat->sat_tab, ss * i, ss, h,
+ h->h_master_sat[i]) != (ssize_t)ss) {
+ DPRINTF(("Reading sector %d", h->h_master_sat[i]));
+ goto out1;
+ }
+ }
+
+ if ((msa = 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 (j >= CDF_LOOP_LIMIT) {
+ DPRINTF(("Reading master sector loop limit"));
+ errno = EFTYPE;
+ goto out2;
+ }
+ if (cdf_read_sector(fd, msa, 0, ss, h, mid) != (ssize_t)ss) {
+ DPRINTF(("Reading master sector %d", mid));
+ goto out2;
+ }
+ for (k = 0; k < (ss / sizeof(mid)) - 1; k++, i++)
+ if (cdf_read_sector(fd, sat->sat_tab, ss * i, ss, h,
+ CDF_TOLE4(msa[k])) != (ssize_t)ss) {
+ DPRINTF(("Reading sector %d",
+ CDF_TOLE4(msa[k])));
+ goto out2;
+ }
+ mid = CDF_TOLE4(msa[(ss / sizeof(mid)) - 1]);
+ }
+ free(msa);
+ return 0;
+out2:
+ free(msa);
+out1:
+ free(sat->sat_tab);
+ return -1;
+}
+
+size_t
+cdf_count_chain(const cdf_header_t *h, const cdf_sat_t *sat,
+ cdf_secid_t sid)
+{
+ size_t i, j, s = CDF_SEC_SIZE(h) / sizeof(cdf_secid_t);
+ cdf_secid_t maxsector = (cdf_secid_t)(sat->sat_len * s);
+
+ DPRINTF(("Chain:"));
+ for (j = i = 0; sid >= 0; i++, j++) {
+ DPRINTF((" %d", sid));
+ if (j >= CDF_LOOP_LIMIT) {
+ DPRINTF(("Counting chain loop limit"));
+ errno = EFTYPE;
+ return (size_t)-1;
+ }
+ if (sid > maxsector) {
+ DPRINTF(("Sector %d > %d\n", sid, maxsector));
+ errno = EFTYPE;
+ return (size_t)-1;
+ }
+ sid = CDF_TOLE4(sat->sat_tab[sid]);
+ }
+ DPRINTF(("\n"));
+ return i;
+}
+
+int
+cdf_read_long_sector_chain(int fd, 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_len = cdf_count_chain(h, sat, sid);
+ scn->sst_dirlen = len;
+
+ if (scn->sst_len == (size_t)-1)
+ return -1;
+
+ scn->sst_tab = calloc(scn->sst_len, ss);
+ if (scn->sst_tab == NULL)
+ return -1;
+
+ for (j = i = 0; sid >= 0; i++, j++) {
+ if ((nr = cdf_read_sector(fd, scn->sst_tab, i * ss, ss, h,
+ sid)) != (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(sat->sat_tab[sid]);
+ if (j >= CDF_LOOP_LIMIT) {
+ DPRINTF(("Read long sector chain loop limit"));
+ errno = EFTYPE;
+ goto out;
+ }
+ }
+ return 0;
+out:
+ free(scn->sst_tab);
+ return (size_t)-1;
+}
+
+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_len = cdf_count_chain(h, ssat, sid);
+ scn->sst_dirlen = len;
+
+ if (scn->sst_len == (size_t)-1)
+ return -1;
+
+ scn->sst_tab = calloc(scn->sst_len, ss);
+ if (scn->sst_tab == NULL)
+ return -1;
+
+ for (j = i = 0; sid >= 0; i++, j++) {
+ if (j >= CDF_LOOP_LIMIT) {
+ DPRINTF(("Read short sector chain loop limit"));
+ errno = EFTYPE;
+ goto out;
+ }
+ if (cdf_read_short_sector(sst, scn->sst_tab, i * ss, ss, h,
+ sid) != (ssize_t)ss) {
+ DPRINTF(("Reading short sector chain %d", sid));
+ goto out;
+ }
+ sid = CDF_TOLE4(ssat->sat_tab[sid]);
+ }
+ return 0;
+out:
+ free(scn->sst_tab);
+ return (size_t)-1;
+}
+
+int
+cdf_read_sector_chain(int fd, 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)
+ return cdf_read_short_sector_chain(h, ssat, sst, sid, len,
+ scn);
+ else
+ return cdf_read_long_sector_chain(fd, h, sat, sid, len, scn);
+}
+
+int
+cdf_read_dir(int fd, 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(h, sat, sid);
+ if (ns == (size_t)-1)
+ return -1;
+
+ nd = ss / CDF_DIRECTORY_SIZE;
+
+ dir->dir_len = ns * nd;
+ dir->dir_tab = calloc(dir->dir_len, sizeof(dir->dir_tab[0]));
+ if (dir->dir_tab == NULL)
+ return -1;
+
+ if ((buf = 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"));
+ errno = EFTYPE;
+ goto out;
+ }
+ if (cdf_read_sector(fd, buf, 0, ss, h, sid) != (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(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);
+ return -1;
+}
+
+
+int
+cdf_read_ssat(int fd, 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_len = cdf_count_chain(h, sat, sid);
+ if (ssat->sat_len == (size_t)-1)
+ return -1;
+
+ ssat->sat_tab = calloc(ssat->sat_len, ss);
+ if (ssat->sat_tab == NULL)
+ return -1;
+
+ for (j = i = 0; sid >= 0; i++, j++) {
+ if (j >= CDF_LOOP_LIMIT) {
+ DPRINTF(("Read short sat sector loop limit"));
+ errno = EFTYPE;
+ goto out;
+ }
+ if (cdf_read_sector(fd, ssat->sat_tab, i * ss, ss, h, sid) !=
+ (ssize_t)ss) {
+ DPRINTF(("Reading short sat sector %d", sid));
+ goto out;
+ }
+ sid = CDF_TOLE4(sat->sat_tab[sid]);
+ }
+ return 0;
+out:
+ free(ssat->sat_tab);
+ return -1;
+}
+
+int
+cdf_read_short_stream(int fd, const cdf_header_t *h, const cdf_sat_t *sat,
+ const cdf_dir_t *dir, cdf_stream_t *scn)
+{
+ size_t i;
+ const cdf_directory_t *d;
+
+ for (i = 0; i < dir->dir_len; i++)
+ if (dir->dir_tab[i].d_type == CDF_DIR_TYPE_ROOT_STORAGE)
+ break;
+
+ if (i == dir->dir_len) {
+ DPRINTF(("Cannot find root storage node\n"));
+ errno = EFTYPE;
+ return -1;
+ }
+ d = &dir->dir_tab[i];
+
+ /* If the it is not there, just fake it; some docs don't have it */
+ if (d->d_stream_first_sector < 0) {
+ scn->sst_tab = NULL;
+ scn->sst_len = 0;
+ return 0;
+ }
+
+ return cdf_read_long_sector_chain(fd, h, sat,
+ d->d_stream_first_sector, d->d_size, scn);
+}
+
+static int
+cdf_namecmp(const char *d, const uint16_t *s, size_t l)
+{
+ for (; l--; d++, s++)
+ if (*d != CDF_TOLE2(*s))
+ return (unsigned char)*d - CDF_TOLE2(*s);
+ return 0;
+}
+
+int
+cdf_read_summary_info(int fd, 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)
+{
+ size_t i;
+ const cdf_directory_t *d;
+ static const char name[] = "\05SummaryInformation";
+
+ for (i = 0; i < dir->dir_len; i++)
+ if (dir->dir_tab[i].d_type == CDF_DIR_TYPE_USER_STREAM &&
+ cdf_namecmp(name, dir->dir_tab[i].d_name, sizeof(name))
+ == 0)
+ break;
+
+ if (i == dir->dir_len) {
+ DPRINTF(("Cannot find summary information section\n"));
+ errno = EFTYPE;
+ return -1;
+ }
+ d = &dir->dir_tab[i];
+ return cdf_read_sector_chain(fd, h, sat, ssat, sst,
+ d->d_stream_first_sector, d->d_size, scn);
+}
+
+int
+cdf_read_property_info(const cdf_stream_t *sst, 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 uint32_t *p, *q, *e;
+ int16_t s16;
+ int32_t s32;
+ uint32_t u32;
+ int64_t s64;
+ uint64_t u64;
+ cdf_timestamp_t tp;
+ size_t i, o, nelements, j;
+ cdf_property_info_t *inp;
+
+ shp = (const void *)((const char *)sst->sst_tab + offs);
+ sh.sh_len = CDF_TOLE4(shp->sh_len);
+ sh.sh_properties = CDF_TOLE4(shp->sh_properties);
+ DPRINTF(("section len: %d properties %d\n", sh.sh_len,
+ sh.sh_properties));
+ if (*maxcount) {
+ *maxcount += sh.sh_properties;
+ inp = realloc(*info, *maxcount * sizeof(*inp));
+ } else {
+ *maxcount = sh.sh_properties;
+ inp = malloc(*maxcount * sizeof(*inp));
+ }
+ if (inp == NULL)
+ goto out;
+ *info = inp;
+ inp += *count;
+ *count += sh.sh_properties;
+ p = (const void *)((const char *)sst->sst_tab + offs + sizeof(sh));
+ e = (const void *)(((const char *)shp) + sh.sh_len);
+ for (i = 0; i < sh.sh_properties; i++) {
+ q = (const uint32_t *)((const char *)p +
+ CDF_TOLE4(p[(i << 1) + 1])) - 2;
+ if (q > e) {
+ DPRINTF(("Ran of the end %p > %p\n", q, e));
+ goto out;
+ }
+ inp[i].pi_id = CDF_TOLE4(p[i << 1]);
+ inp[i].pi_type = CDF_TOLE4(q[0]);
+ DPRINTF(("%d) id=%x type=%x offs=%x\n", i, inp[i].pi_id,
+ inp[i].pi_type, (const char *)q - (const char *)p));
+ if (inp[i].pi_type & CDF_VECTOR) {
+ nelements = CDF_TOLE4(q[1]);
+ o = 2;
+ } else {
+ nelements = 1;
+ o = 1;
+ }
+ if (inp[i].pi_type & (CDF_ARRAY|CDF_BYREF|CDF_RESERVED))
+ goto unknown;
+ switch (inp[i].pi_type & CDF_TYPEMASK) {
+ case CDF_EMPTY:
+ break;
+ case CDF_SIGNED16:
+ if (inp[i].pi_type & CDF_VECTOR)
+ goto unknown;
+ (void)memcpy(&s16, &q[o], sizeof(s16));
+ inp[i].pi_s16 = CDF_TOLE2(s16);
+ break;
+ case CDF_SIGNED32:
+ if (inp[i].pi_type & CDF_VECTOR)
+ goto unknown;
+ (void)memcpy(&s32, &q[o], sizeof(s32));
+ inp[i].pi_s32 = CDF_TOLE4(s32);
+ break;
+ case CDF_BOOL:
+ case CDF_UNSIGNED32:
+ if (inp[i].pi_type & CDF_VECTOR)
+ goto unknown;
+ (void)memcpy(&u32, &q[o], sizeof(u32));
+ inp[i].pi_u32 = CDF_TOLE4(u32);
+ break;
+ case CDF_SIGNED64:
+ if (inp[i].pi_type & CDF_VECTOR)
+ goto unknown;
+ (void)memcpy(&s64, &q[o], sizeof(s64));
+ inp[i].pi_s64 = CDF_TOLE4(s64);
+ break;
+ case CDF_UNSIGNED64:
+ if (inp[i].pi_type & CDF_VECTOR)
+ goto unknown;
+ (void)memcpy(&u64, &q[o], sizeof(u64));
+ inp[i].pi_u64 = CDF_TOLE4(u64);
+ break;
+ case CDF_LENGTH32_STRING:
+ if (nelements > 1) {
+ size_t nelem = inp - *info;
+ *maxcount += nelements;
+ inp = realloc(*info, *maxcount * sizeof(*inp));
+ if (inp == NULL)
+ goto out;
+ *info = inp;
+ inp = *info + nelem;
+ }
+ DPRINTF(("nelements = %d\n", nelements));
+ for (j = 0; j < nelements; j++, i++) {
+ uint32_t l = CDF_TOLE4(q[o]);
+ inp[i].pi_str.s_len = l;
+ inp[i].pi_str.s_buf = (const char *)(&q[o+1]);
+ DPRINTF(("l = %d, r = %d, s = %s\n", l,
+ CDF_ROUND(l, sizeof(l)),
+ inp[i].pi_str.s_buf));
+ l = 4 + CDF_ROUND(l, sizeof(l));
+ o += l >> 2;
+ }
+ i--;
+ break;
+ case CDF_FILETIME:
+ if (inp[i].pi_type & CDF_VECTOR)
+ goto unknown;
+ (void)memcpy(&tp, &q[o], sizeof(tp));
+ inp[i].pi_tp = CDF_TOLE8(tp);
+ break;
+ case CDF_CLIPBOARD:
+ if (inp[i].pi_type & CDF_VECTOR)
+ goto unknown;
+ break;
+ default:
+ unknown:
+ DPRINTF(("Don't know how to deal with %x\n",
+ inp[i].pi_type));
+ goto out;
+ }
+ }
+ return 0;
+out:
+ free(*info);
+ return -1;
+}
+
+int
+cdf_unpack_summary_info(const cdf_stream_t *sst, cdf_summary_info_header_t *ssi,
+ cdf_property_info_t **info, size_t *count)
+{
+ size_t i, maxcount;
+ const cdf_summary_info_header_t *si = sst->sst_tab;
+ const cdf_section_declaration_t *sd = (const void *)
+ ((const char *)sst->sst_tab + CDF_SECTION_DECLARATION_OFFSET);
+
+ 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_TOLE2(si->si_count);
+ *count = 0;
+ maxcount = 0;
+ *info = NULL;
+ for (i = 0; i < CDF_TOLE4(si->si_count); i++) {
+ if (i >= CDF_LOOP_LIMIT) {
+ DPRINTF(("Unpack summary info loop limit"));
+ errno = EFTYPE;
+ return -1;
+ }
+ if (cdf_read_property_info(sst, CDF_TOLE4(sd->sd_offset),
+ info, count, &maxcount) == -1)
+ return -1;
+ }
+ 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, "0x%x", p);
+}
+
+int
+cdf_print_elapsed_time(char *buf, size_t bufsiz, cdf_timestamp_t ts)
+{
+ size_t len = 0;
+ int days, hours, mins, secs;
+
+ ts /= CDF_TIME_PREC;
+ secs = ts % 60;
+ ts /= 60;
+ mins = ts % 60;
+ ts /= 60;
+ hours = ts % 24;
+ ts /= 24;
+ days = ts;
+
+ if (days) {
+ len += snprintf(buf + len, bufsiz - len, "%dd+", days);
+ if (len >= bufsiz)
+ return len;
+ }
+
+ if (days || hours) {
+ len += snprintf(buf + len, bufsiz - len, "%.2d:", hours);
+ if (len >= bufsiz)
+ return len;
+ }
+
+ len += snprintf(buf + len, bufsiz - len, "%.2d:", mins);
+ if (len >= bufsiz)
+ return len;
+
+ len += snprintf(buf + len, bufsiz - len, "%.2d", secs);
+ return len;
+}
+
+
+#ifdef CDF_DEBUG
+void
+cdf_dump_header(const cdf_header_t *h)
+{
+ size_t i;
+
+#define DUMP(a, b) printf("%40.40s = " a "\n", # b, h->h_ ## b)
+ DUMP("%d", revision);
+ DUMP("%d", version);
+ DUMP("0x%x", byte_order);
+ DUMP("%d", sec_size_p2);
+ DUMP("%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;
+ printf("%35.35s[%.3zu] = %d\n",
+ "master_sat", i, h->h_master_sat[i]);
+ }
+}
+
+void
+cdf_dump_sat(const char *prefix, const cdf_header_t *h, const cdf_sat_t *sat)
+{
+ size_t i, j, s = CDF_SEC_SIZE(h) / sizeof(cdf_secid_t);
+
+ for (i = 0; i < sat->sat_len; i++) {
+ printf("%s[%zu]:\n", prefix, i);
+ for (j = 0; j < s; j++) {
+ printf("%5d, ", CDF_TOLE4(sat->sat_tab[s * i + j]));
+ if ((j + 1) % 10 == 0)
+ printf("\n");
+ }
+ printf("\n");
+ }
+}
+
+void
+cdf_dump(void *v, size_t len)
+{
+ size_t i, j;
+ unsigned char *p = v;
+ char abuf[16];
+ printf("%.4x: ", 0);
+ for (i = 0, j = 0; i < len; i++, p++) {
+ printf("%.2x ", *p);
+ abuf[j++] = isprint(*p) ? *p : '.';
+ if (j == 16) {
+ j = 0;
+ abuf[15] = '\0';
+ printf("%s\n%.4x: ", abuf, i + 1);
+ }
+ }
+ printf("\n");
+}
+
+void
+cdf_dump_stream(const cdf_header_t *h, const cdf_stream_t *sst)
+{
+ size_t ss = sst->sst_dirlen < h->h_min_size_standard_stream ?
+ CDF_SHORT_SEC_SIZE(h) : CDF_SEC_SIZE(h);
+ cdf_dump(sst->sst_tab, ss * sst->sst_len);
+}
+
+void
+cdf_dump_dir(int fd, 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++) {
+ d = &dir->dir_tab[i];
+ for (j = 0; j < sizeof(name); j++)
+ name[j] = (char)CDF_TOLE2(d->d_name[j]);
+ printf("Directory %zu: %s\n", i, name);
+ if (d->d_type < __arraycount(types))
+ printf("Type: %s\n", types[d->d_type]);
+ else
+ printf("Type: %d\n", d->d_type);
+ printf("Color: %s\n", d->d_color ? "black" : "red");
+ printf("Left child: %d\n", d->d_left_child);
+ printf("Right child: %d\n", d->d_right_child);
+ printf("Flags: 0x%x\n", d->d_flags);
+ cdf_timestamp_to_timespec(&ts, d->d_created);
+ printf("Created %s", ctime(&ts.tv_sec));
+ cdf_timestamp_to_timespec(&ts, d->d_modified);
+ printf("Modified %s", ctime(&ts.tv_sec));
+ printf("Stream %d\n", d->d_stream_first_sector);
+ printf("Size %d\n", d->d_size);
+ switch (d->d_type) {
+ case CDF_DIR_TYPE_USER_STORAGE:
+ printf("Storage: %d\n", d->d_storage);
+ break;
+ case CDF_DIR_TYPE_USER_STREAM:
+ if (sst == NULL)
+ break;
+ if (cdf_read_sector_chain(fd, 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(h, &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;
+
+ for (i = 0; i < count; i++) {
+ cdf_print_property_name(buf, sizeof(buf), info[i].pi_id);
+ printf("%zu) %s: ", i, buf);
+ switch (info[i].pi_type) {
+ case CDF_SIGNED16:
+ printf("signed 16 [%hd]\n", info[i].pi_s16);
+ break;
+ case CDF_SIGNED32:
+ printf("signed 32 [%d]\n", info[i].pi_s32);
+ break;
+ case CDF_UNSIGNED32:
+ printf("unsigned 32 [%u]\n", info[i].pi_u32);
+ break;
+ case CDF_LENGTH32_STRING:
+ printf("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_FILETIME:
+ tp = info[i].pi_tp;
+ if (tp < 1000000000000000LL) {
+ cdf_print_elapsed_time(buf, sizeof(buf), tp);
+ printf("timestamp %s\n", buf);
+ } else {
+ cdf_timestamp_to_timespec(&ts, tp);
+ printf("timestamp %s", ctime(&ts.tv_sec));
+ }
+ break;
+ case CDF_CLIPBOARD:
+ printf("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, &ssi, &info, &count) == -1)
+ return;
+ printf("Endian: %x\n", ssi.si_byte_order);
+ printf("Os Version %d.%d\n", ssi.si_os_version & 0xff,
+ ssi.si_os_version >> 8);
+ printf("Os %d\n", ssi.si_os);
+ cdf_print_classid(buf, sizeof(buf), &ssi.si_class);
+ printf("Class %s\n", buf);
+ printf("Count %d\n", ssi.si_count);
+ cdf_dump_property_info(info, count);
+ free(info);
+}
+
+#endif
+
+#ifdef TEST
+int
+main(int argc, char *argv[])
+{
+ int fd, i;
+ cdf_header_t h;
+ cdf_sat_t sat, ssat;
+ cdf_stream_t sst, scn;
+ cdf_dir_t dir;
+
+ if (argc < 2) {
+ (void)fprintf(stderr, "Usage: %s <filename>\n", getprogname());
+ return -1;
+ }
+
+ for (i = 1; i < argc; i++) {
+ if ((fd = open(argv[1], O_RDONLY)) == -1)
+ err(1, "Cannot open `%s'", argv[1]);
+
+ if (cdf_read_header(fd, &h) == -1)
+ err(1, "Cannot read header");
+#ifdef CDF_DEBUG
+ cdf_dump_header(&h);
+#endif
+
+ if (cdf_read_sat(fd, &h, &sat) == -1)
+ err(1, "Cannot read sat");
+#ifdef CDF_DEBUG
+ cdf_dump_sat("SAT", &h, &sat);
+#endif
+
+ if (cdf_read_ssat(fd, &h, &sat, &ssat) == -1)
+ err(1, "Cannot read ssat");
+#ifdef CDF_DEBUG
+ cdf_dump_sat("SSAT", &h, &ssat);
+#endif
+
+ if (cdf_read_dir(fd, &h, &sat, &dir) == -1)
+ err(1, "Cannot read dir");
+
+ if (cdf_read_short_stream(fd, &h, &sat, &dir, &sst) == -1)
+ err(1, "Cannot read short stream");
+#ifdef CDF_DEBUG
+ cdf_dump_stream(&h, &sst);
+#endif
+
+#ifdef CDF_DEBUG
+ cdf_dump_dir(fd, &h, &sat, &ssat, &sst, &dir);
+#endif
+
+
+ if (cdf_read_summary_info(fd, &h, &sat, &ssat, &sst, &dir,
+ &scn) == -1)
+ err(1, "Cannot read summary info");
+#ifdef CDF_DEBUG
+ cdf_dump_summary_info(&h, &scn);
+#endif
+
+ (void)close(fd);
+ }
+
+ return 0;
+}
+#endif