xref: /PHP-5.4/ext/fileinfo/libmagic/cdf.c (revision 7ba1409a)
1 /*-
2  * Copyright (c) 2008 Christos Zoulas
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
15  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
16  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
18  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
19  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
20  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
22  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
23  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
24  * POSSIBILITY OF SUCH DAMAGE.
25  */
26 /*
27  * Parse Composite Document Files, the format used in Microsoft Office
28  * document files before they switched to zipped XML.
29  * Info from: http://sc.openoffice.org/compdocfileformat.pdf
30  *
31  * N.B. This is the "Composite Document File" format, and not the
32  * "Compound Document Format", nor the "Channel Definition Format".
33  */
34 
35 #include "file.h"
36 
37 #ifndef lint
38 FILE_RCSID("@(#)$File: cdf.c,v 1.53 2013/02/26 16:20:42 christos Exp $")
39 #endif
40 
41 #include <assert.h>
42 #ifdef CDF_DEBUG
43 #include <err.h>
44 #endif
45 #include <stdlib.h>
46 
47 #ifdef PHP_WIN32
48 #include "win32/unistd.h"
49 #else
50 #include <unistd.h>
51 #endif
52 
53 #ifndef UINT32_MAX
54 # define UINT32_MAX (0xffffffff)
55 #endif
56 
57 #include <string.h>
58 #include <time.h>
59 #include <ctype.h>
60 #ifdef HAVE_LIMITS_H
61 #include <limits.h>
62 #endif
63 
64 #ifndef EFTYPE
65 #define EFTYPE EINVAL
66 #endif
67 
68 #include "cdf.h"
69 
70 #ifdef CDF_DEBUG
71 #define DPRINTF(a) printf a, fflush(stdout)
72 #else
73 #define DPRINTF(a)
74 #endif
75 
76 static union {
77 	char s[4];
78 	uint32_t u;
79 } cdf_bo;
80 
81 #define NEED_SWAP	(cdf_bo.u == (uint32_t)0x01020304)
82 
83 #define CDF_TOLE8(x)	((uint64_t)(NEED_SWAP ? _cdf_tole8(x) : (uint64_t)(x)))
84 #define CDF_TOLE4(x)	((uint32_t)(NEED_SWAP ? _cdf_tole4(x) : (uint32_t)(x)))
85 #define CDF_TOLE2(x)	((uint16_t)(NEED_SWAP ? _cdf_tole2(x) : (uint16_t)(x)))
86 #define CDF_GETUINT32(x, y)	cdf_getuint32(x, y)
87 
88 
89 /*
90  * swap a short
91  */
92 static uint16_t
_cdf_tole2(uint16_t sv)93 _cdf_tole2(uint16_t sv)
94 {
95 	uint16_t rv;
96 	uint8_t *s = (uint8_t *)(void *)&sv;
97 	uint8_t *d = (uint8_t *)(void *)&rv;
98 	d[0] = s[1];
99 	d[1] = s[0];
100 	return rv;
101 }
102 
103 /*
104  * swap an int
105  */
106 static uint32_t
_cdf_tole4(uint32_t sv)107 _cdf_tole4(uint32_t sv)
108 {
109 	uint32_t rv;
110 	uint8_t *s = (uint8_t *)(void *)&sv;
111 	uint8_t *d = (uint8_t *)(void *)&rv;
112 	d[0] = s[3];
113 	d[1] = s[2];
114 	d[2] = s[1];
115 	d[3] = s[0];
116 	return rv;
117 }
118 
119 /*
120  * swap a quad
121  */
122 static uint64_t
_cdf_tole8(uint64_t sv)123 _cdf_tole8(uint64_t sv)
124 {
125 	uint64_t rv;
126 	uint8_t *s = (uint8_t *)(void *)&sv;
127 	uint8_t *d = (uint8_t *)(void *)&rv;
128 	d[0] = s[7];
129 	d[1] = s[6];
130 	d[2] = s[5];
131 	d[3] = s[4];
132 	d[4] = s[3];
133 	d[5] = s[2];
134 	d[6] = s[1];
135 	d[7] = s[0];
136 	return rv;
137 }
138 
139 /*
140  * grab a uint32_t from a possibly unaligned address, and return it in
141  * the native host order.
142  */
143 static uint32_t
cdf_getuint32(const uint8_t * p,size_t offs)144 cdf_getuint32(const uint8_t *p, size_t offs)
145 {
146 	uint32_t rv;
147 	(void)memcpy(&rv, p + offs * sizeof(uint32_t), sizeof(rv));
148 	return CDF_TOLE4(rv);
149 }
150 
151 #define CDF_UNPACK(a)	\
152     (void)memcpy(&(a), &buf[len], sizeof(a)), len += sizeof(a)
153 #define CDF_UNPACKA(a)	\
154     (void)memcpy((a), &buf[len], sizeof(a)), len += sizeof(a)
155 
156 uint16_t
cdf_tole2(uint16_t sv)157 cdf_tole2(uint16_t sv)
158 {
159 	return CDF_TOLE2(sv);
160 }
161 
162 uint32_t
cdf_tole4(uint32_t sv)163 cdf_tole4(uint32_t sv)
164 {
165 	return CDF_TOLE4(sv);
166 }
167 
168 uint64_t
cdf_tole8(uint64_t sv)169 cdf_tole8(uint64_t sv)
170 {
171 	return CDF_TOLE8(sv);
172 }
173 
174 void
cdf_swap_header(cdf_header_t * h)175 cdf_swap_header(cdf_header_t *h)
176 {
177 	size_t i;
178 
179 	h->h_magic = CDF_TOLE8(h->h_magic);
180 	h->h_uuid[0] = CDF_TOLE8(h->h_uuid[0]);
181 	h->h_uuid[1] = CDF_TOLE8(h->h_uuid[1]);
182 	h->h_revision = CDF_TOLE2(h->h_revision);
183 	h->h_version = CDF_TOLE2(h->h_version);
184 	h->h_byte_order = CDF_TOLE2(h->h_byte_order);
185 	h->h_sec_size_p2 = CDF_TOLE2(h->h_sec_size_p2);
186 	h->h_short_sec_size_p2 = CDF_TOLE2(h->h_short_sec_size_p2);
187 	h->h_num_sectors_in_sat = CDF_TOLE4(h->h_num_sectors_in_sat);
188 	h->h_secid_first_directory = CDF_TOLE4(h->h_secid_first_directory);
189 	h->h_min_size_standard_stream =
190 	    CDF_TOLE4(h->h_min_size_standard_stream);
191 	h->h_secid_first_sector_in_short_sat =
192 	    CDF_TOLE4((uint32_t)h->h_secid_first_sector_in_short_sat);
193 	h->h_num_sectors_in_short_sat =
194 	    CDF_TOLE4(h->h_num_sectors_in_short_sat);
195 	h->h_secid_first_sector_in_master_sat =
196 	    CDF_TOLE4((uint32_t)h->h_secid_first_sector_in_master_sat);
197 	h->h_num_sectors_in_master_sat =
198 	    CDF_TOLE4(h->h_num_sectors_in_master_sat);
199 	for (i = 0; i < __arraycount(h->h_master_sat); i++)
200 		h->h_master_sat[i] = CDF_TOLE4((uint32_t)h->h_master_sat[i]);
201 }
202 
203 void
cdf_unpack_header(cdf_header_t * h,char * buf)204 cdf_unpack_header(cdf_header_t *h, char *buf)
205 {
206 	size_t i;
207 	size_t len = 0;
208 
209 	CDF_UNPACK(h->h_magic);
210 	CDF_UNPACKA(h->h_uuid);
211 	CDF_UNPACK(h->h_revision);
212 	CDF_UNPACK(h->h_version);
213 	CDF_UNPACK(h->h_byte_order);
214 	CDF_UNPACK(h->h_sec_size_p2);
215 	CDF_UNPACK(h->h_short_sec_size_p2);
216 	CDF_UNPACKA(h->h_unused0);
217 	CDF_UNPACK(h->h_num_sectors_in_sat);
218 	CDF_UNPACK(h->h_secid_first_directory);
219 	CDF_UNPACKA(h->h_unused1);
220 	CDF_UNPACK(h->h_min_size_standard_stream);
221 	CDF_UNPACK(h->h_secid_first_sector_in_short_sat);
222 	CDF_UNPACK(h->h_num_sectors_in_short_sat);
223 	CDF_UNPACK(h->h_secid_first_sector_in_master_sat);
224 	CDF_UNPACK(h->h_num_sectors_in_master_sat);
225 	for (i = 0; i < __arraycount(h->h_master_sat); i++)
226 		CDF_UNPACK(h->h_master_sat[i]);
227 }
228 
229 void
cdf_swap_dir(cdf_directory_t * d)230 cdf_swap_dir(cdf_directory_t *d)
231 {
232 	d->d_namelen = CDF_TOLE2(d->d_namelen);
233 	d->d_left_child = CDF_TOLE4((uint32_t)d->d_left_child);
234 	d->d_right_child = CDF_TOLE4((uint32_t)d->d_right_child);
235 	d->d_storage = CDF_TOLE4((uint32_t)d->d_storage);
236 	d->d_storage_uuid[0] = CDF_TOLE8(d->d_storage_uuid[0]);
237 	d->d_storage_uuid[1] = CDF_TOLE8(d->d_storage_uuid[1]);
238 	d->d_flags = CDF_TOLE4(d->d_flags);
239 	d->d_created = CDF_TOLE8((uint64_t)d->d_created);
240 	d->d_modified = CDF_TOLE8((uint64_t)d->d_modified);
241 	d->d_stream_first_sector = CDF_TOLE4((uint32_t)d->d_stream_first_sector);
242 	d->d_size = CDF_TOLE4(d->d_size);
243 }
244 
245 void
cdf_swap_class(cdf_classid_t * d)246 cdf_swap_class(cdf_classid_t *d)
247 {
248 	d->cl_dword = CDF_TOLE4(d->cl_dword);
249 	d->cl_word[0] = CDF_TOLE2(d->cl_word[0]);
250 	d->cl_word[1] = CDF_TOLE2(d->cl_word[1]);
251 }
252 
253 void
cdf_unpack_dir(cdf_directory_t * d,char * buf)254 cdf_unpack_dir(cdf_directory_t *d, char *buf)
255 {
256 	size_t len = 0;
257 
258 	CDF_UNPACKA(d->d_name);
259 	CDF_UNPACK(d->d_namelen);
260 	CDF_UNPACK(d->d_type);
261 	CDF_UNPACK(d->d_color);
262 	CDF_UNPACK(d->d_left_child);
263 	CDF_UNPACK(d->d_right_child);
264 	CDF_UNPACK(d->d_storage);
265 	CDF_UNPACKA(d->d_storage_uuid);
266 	CDF_UNPACK(d->d_flags);
267 	CDF_UNPACK(d->d_created);
268 	CDF_UNPACK(d->d_modified);
269 	CDF_UNPACK(d->d_stream_first_sector);
270 	CDF_UNPACK(d->d_size);
271 	CDF_UNPACK(d->d_unused0);
272 }
273 
274 static int
cdf_check_stream_offset(const cdf_stream_t * sst,const cdf_header_t * h,const void * p,size_t tail,int line)275 cdf_check_stream_offset(const cdf_stream_t *sst, const cdf_header_t *h,
276     const void *p, size_t tail, int line)
277 {
278 	const char *b = (const char *)sst->sst_tab;
279 	const char *e = ((const char *)p) + tail;
280 	size_t ss = sst->sst_dirlen < h->h_min_size_standard_stream ?
281 	    CDF_SHORT_SEC_SIZE(h) : CDF_SEC_SIZE(h);
282 	(void)&line;
283 	if (e >= b && (size_t)(e - b) <= ss * sst->sst_len)
284 		return 0;
285 	DPRINTF(("%d: offset begin %p < end %p || %" SIZE_T_FORMAT "u"
286 	    " > %" SIZE_T_FORMAT "u [%" SIZE_T_FORMAT "u %"
287 	    SIZE_T_FORMAT "u]\n", line, b, e, (size_t)(e - b),
288 	    ss * sst->sst_len, ss, sst->sst_len));
289 	errno = EFTYPE;
290 	return -1;
291 }
292 
293 static ssize_t
cdf_read(const cdf_info_t * info,off_t off,void * buf,size_t len)294 cdf_read(const cdf_info_t *info, off_t off, void *buf, size_t len)
295 {
296 	size_t siz = (size_t)off + len;
297 
298 	if ((off_t)(off + len) != (off_t)siz) {
299 		errno = EINVAL;
300 		return -1;
301 	}
302 
303 	if (info->i_buf != NULL && info->i_len >= siz) {
304 		(void)memcpy(buf, &info->i_buf[off], len);
305 		return (ssize_t)len;
306 	}
307 
308 	if (info->i_fd == -1)
309 		return -1;
310 
311 	if (FINFO_LSEEK_FUNC(info->i_fd, off, SEEK_SET) == (off_t)-1)
312 		return -1;
313 
314 	if (FINFO_READ_FUNC(info->i_fd, buf, len) != (ssize_t)len)
315 		return -1;
316 
317 	return (ssize_t)len;
318 }
319 
320 int
cdf_read_header(const cdf_info_t * info,cdf_header_t * h)321 cdf_read_header(const cdf_info_t *info, cdf_header_t *h)
322 {
323 	char buf[512];
324 
325 	(void)memcpy(cdf_bo.s, "\01\02\03\04", 4);
326 	if (cdf_read(info, (off_t)0, buf, sizeof(buf)) == -1)
327 		return -1;
328 	cdf_unpack_header(h, buf);
329 	cdf_swap_header(h);
330 	if (h->h_magic != CDF_MAGIC) {
331 		DPRINTF(("Bad magic 0x%" INT64_T_FORMAT "x != 0x%"
332 		    INT64_T_FORMAT "x\n",
333 		    (unsigned long long)h->h_magic,
334 		    (unsigned long long)CDF_MAGIC));
335 		goto out;
336 	}
337 	if (h->h_sec_size_p2 > 20) {
338 		DPRINTF(("Bad sector size 0x%u\n", h->h_sec_size_p2));
339 		goto out;
340 	}
341 	if (h->h_short_sec_size_p2 > 20) {
342 		DPRINTF(("Bad short sector size 0x%u\n",
343 		    h->h_short_sec_size_p2));
344 		goto out;
345 	}
346 	return 0;
347 out:
348 	errno = EFTYPE;
349 	return -1;
350 }
351 
352 
353 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)354 cdf_read_sector(const cdf_info_t *info, void *buf, size_t offs, size_t len,
355     const cdf_header_t *h, cdf_secid_t id)
356 {
357 	size_t ss = CDF_SEC_SIZE(h);
358 	size_t pos = CDF_SEC_POS(h, id);
359 	assert(ss == len);
360 	return cdf_read(info, (off_t)pos, ((char *)buf) + offs, len);
361 }
362 
363 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)364 cdf_read_short_sector(const cdf_stream_t *sst, void *buf, size_t offs,
365     size_t len, const cdf_header_t *h, cdf_secid_t id)
366 {
367 	size_t ss = CDF_SHORT_SEC_SIZE(h);
368 	size_t pos = CDF_SHORT_SEC_POS(h, id);
369 	assert(ss == len);
370 	if (pos + len > CDF_SEC_SIZE(h) * sst->sst_len) {
371 		DPRINTF(("Out of bounds read %" SIZE_T_FORMAT "u > %"
372 		    SIZE_T_FORMAT "u\n",
373 		    pos + len, CDF_SEC_SIZE(h) * sst->sst_len));
374 		return -1;
375 	}
376 	(void)memcpy(((char *)buf) + offs,
377 	    ((const char *)sst->sst_tab) + pos, len);
378 	return len;
379 }
380 
381 /*
382  * Read the sector allocation table.
383  */
384 int
cdf_read_sat(const cdf_info_t * info,cdf_header_t * h,cdf_sat_t * sat)385 cdf_read_sat(const cdf_info_t *info, cdf_header_t *h, cdf_sat_t *sat)
386 {
387 	size_t i, j, k;
388 	size_t ss = CDF_SEC_SIZE(h);
389 	cdf_secid_t *msa, mid, sec;
390 	size_t nsatpersec = (ss / sizeof(mid)) - 1;
391 
392 	for (i = 0; i < __arraycount(h->h_master_sat); i++)
393 		if (h->h_master_sat[i] == CDF_SECID_FREE)
394 			break;
395 
396 #define CDF_SEC_LIMIT (UINT32_MAX / (4 * ss))
397 	if ((nsatpersec > 0 &&
398 	    h->h_num_sectors_in_master_sat > CDF_SEC_LIMIT / nsatpersec) ||
399 	    i > CDF_SEC_LIMIT) {
400 		DPRINTF(("Number of sectors in master SAT too big %u %"
401 		    SIZE_T_FORMAT "u\n", h->h_num_sectors_in_master_sat, i));
402 		errno = EFTYPE;
403 		return -1;
404 	}
405 
406 	sat->sat_len = h->h_num_sectors_in_master_sat * nsatpersec + i;
407 	DPRINTF(("sat_len = %" SIZE_T_FORMAT "u ss = %" SIZE_T_FORMAT "u\n",
408 	    sat->sat_len, ss));
409 	if ((sat->sat_tab = CAST(cdf_secid_t *, calloc(sat->sat_len, ss)))
410 	    == NULL)
411 		return -1;
412 
413 	for (i = 0; i < __arraycount(h->h_master_sat); i++) {
414 		if (h->h_master_sat[i] < 0)
415 			break;
416 		if (cdf_read_sector(info, sat->sat_tab, ss * i, ss, h,
417 		    h->h_master_sat[i]) != (ssize_t)ss) {
418 			DPRINTF(("Reading sector %d", h->h_master_sat[i]));
419 			goto out1;
420 		}
421 	}
422 
423 	if ((msa = CAST(cdf_secid_t *, calloc(1, ss))) == NULL)
424 		goto out1;
425 
426 	mid = h->h_secid_first_sector_in_master_sat;
427 	for (j = 0; j < h->h_num_sectors_in_master_sat; j++) {
428 		if (mid < 0)
429 			goto out;
430 		if (j >= CDF_LOOP_LIMIT) {
431 			DPRINTF(("Reading master sector loop limit"));
432 			errno = EFTYPE;
433 			goto out2;
434 		}
435 		if (cdf_read_sector(info, msa, 0, ss, h, mid) != (ssize_t)ss) {
436 			DPRINTF(("Reading master sector %d", mid));
437 			goto out2;
438 		}
439 		for (k = 0; k < nsatpersec; k++, i++) {
440 			sec = CDF_TOLE4((uint32_t)msa[k]);
441 			if (sec < 0)
442 				goto out;
443 			if (i >= sat->sat_len) {
444 			    DPRINTF(("Out of bounds reading MSA %" SIZE_T_FORMAT
445 				"u >= %" SIZE_T_FORMAT "u", i, sat->sat_len));
446 			    errno = EFTYPE;
447 			    goto out2;
448 			}
449 			if (cdf_read_sector(info, sat->sat_tab, ss * i, ss, h,
450 			    sec) != (ssize_t)ss) {
451 				DPRINTF(("Reading sector %d",
452 				    CDF_TOLE4(msa[k])));
453 				goto out2;
454 			}
455 		}
456 		mid = CDF_TOLE4((uint32_t)msa[nsatpersec]);
457 	}
458 out:
459 	sat->sat_len = i;
460 	free(msa);
461 	return 0;
462 out2:
463 	free(msa);
464 out1:
465 	free(sat->sat_tab);
466 	return -1;
467 }
468 
469 size_t
cdf_count_chain(const cdf_sat_t * sat,cdf_secid_t sid,size_t size)470 cdf_count_chain(const cdf_sat_t *sat, cdf_secid_t sid, size_t size)
471 {
472 	size_t i, j;
473 	cdf_secid_t maxsector = (cdf_secid_t)((sat->sat_len * size)
474 	    / sizeof(maxsector));
475 
476 	DPRINTF(("Chain:"));
477 	for (j = i = 0; sid >= 0; i++, j++) {
478 		DPRINTF((" %d", sid));
479 		if (j >= CDF_LOOP_LIMIT) {
480 			DPRINTF(("Counting chain loop limit"));
481 			errno = EFTYPE;
482 			return (size_t)-1;
483 		}
484 		if (sid >= maxsector) {
485 			DPRINTF(("Sector %d >= %d\n", sid, maxsector));
486 			errno = EFTYPE;
487 			return (size_t)-1;
488 		}
489 		sid = CDF_TOLE4((uint32_t)sat->sat_tab[sid]);
490 	}
491 	DPRINTF(("\n"));
492 	return i;
493 }
494 
495 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)496 cdf_read_long_sector_chain(const cdf_info_t *info, const cdf_header_t *h,
497     const cdf_sat_t *sat, cdf_secid_t sid, size_t len, cdf_stream_t *scn)
498 {
499 	size_t ss = CDF_SEC_SIZE(h), i, j;
500 	ssize_t nr;
501 	scn->sst_len = cdf_count_chain(sat, sid, ss);
502 	scn->sst_dirlen = len;
503 
504 	if (scn->sst_len == (size_t)-1)
505 		return -1;
506 
507 	scn->sst_tab = calloc(scn->sst_len, ss);
508 	if (scn->sst_tab == NULL)
509 		return -1;
510 
511 	for (j = i = 0; sid >= 0; i++, j++) {
512 		if (j >= CDF_LOOP_LIMIT) {
513 			DPRINTF(("Read long sector chain loop limit"));
514 			errno = EFTYPE;
515 			goto out;
516 		}
517 		if (i >= scn->sst_len) {
518 			DPRINTF(("Out of bounds reading long sector chain "
519 			    "%" SIZE_T_FORMAT "u > %" SIZE_T_FORMAT "u\n", i,
520 			    scn->sst_len));
521 			errno = EFTYPE;
522 			goto out;
523 		}
524 		if ((nr = cdf_read_sector(info, scn->sst_tab, i * ss, ss, h,
525 		    sid)) != (ssize_t)ss) {
526 			if (i == scn->sst_len - 1 && nr > 0) {
527 				/* Last sector might be truncated */
528 				return 0;
529 			}
530 			DPRINTF(("Reading long sector chain %d", sid));
531 			goto out;
532 		}
533 		sid = CDF_TOLE4((uint32_t)sat->sat_tab[sid]);
534 	}
535 	return 0;
536 out:
537 	free(scn->sst_tab);
538 	return -1;
539 }
540 
541 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)542 cdf_read_short_sector_chain(const cdf_header_t *h,
543     const cdf_sat_t *ssat, const cdf_stream_t *sst,
544     cdf_secid_t sid, size_t len, cdf_stream_t *scn)
545 {
546 	size_t ss = CDF_SHORT_SEC_SIZE(h), i, j;
547 	scn->sst_len = cdf_count_chain(ssat, sid, CDF_SEC_SIZE(h));
548 	scn->sst_dirlen = len;
549 
550 	if (sst->sst_tab == NULL || scn->sst_len == (size_t)-1)
551 		return -1;
552 
553 	scn->sst_tab = calloc(scn->sst_len, ss);
554 	if (scn->sst_tab == NULL)
555 		return -1;
556 
557 	for (j = i = 0; sid >= 0; i++, j++) {
558 		if (j >= CDF_LOOP_LIMIT) {
559 			DPRINTF(("Read short sector chain loop limit"));
560 			errno = EFTYPE;
561 			goto out;
562 		}
563 		if (i >= scn->sst_len) {
564 			DPRINTF(("Out of bounds reading short sector chain "
565 			    "%" SIZE_T_FORMAT "u > %" SIZE_T_FORMAT "u\n",
566 			    i, scn->sst_len));
567 			errno = EFTYPE;
568 			goto out;
569 		}
570 		if (cdf_read_short_sector(sst, scn->sst_tab, i * ss, ss, h,
571 		    sid) != (ssize_t)ss) {
572 			DPRINTF(("Reading short sector chain %d", sid));
573 			goto out;
574 		}
575 		sid = CDF_TOLE4((uint32_t)ssat->sat_tab[sid]);
576 	}
577 	return 0;
578 out:
579 	free(scn->sst_tab);
580 	return -1;
581 }
582 
583 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)584 cdf_read_sector_chain(const cdf_info_t *info, const cdf_header_t *h,
585     const cdf_sat_t *sat, const cdf_sat_t *ssat, const cdf_stream_t *sst,
586     cdf_secid_t sid, size_t len, cdf_stream_t *scn)
587 {
588 
589 	if (len < h->h_min_size_standard_stream && sst->sst_tab != NULL)
590 		return cdf_read_short_sector_chain(h, ssat, sst, sid, len,
591 		    scn);
592 	else
593 		return cdf_read_long_sector_chain(info, h, sat, sid, len, scn);
594 }
595 
596 int
cdf_read_dir(const cdf_info_t * info,const cdf_header_t * h,const cdf_sat_t * sat,cdf_dir_t * dir)597 cdf_read_dir(const cdf_info_t *info, const cdf_header_t *h,
598     const cdf_sat_t *sat, cdf_dir_t *dir)
599 {
600 	size_t i, j;
601 	size_t ss = CDF_SEC_SIZE(h), ns, nd;
602 	char *buf;
603 	cdf_secid_t sid = h->h_secid_first_directory;
604 
605 	ns = cdf_count_chain(sat, sid, ss);
606 	if (ns == (size_t)-1)
607 		return -1;
608 
609 	nd = ss / CDF_DIRECTORY_SIZE;
610 
611 	dir->dir_len = ns * nd;
612 	dir->dir_tab = CAST(cdf_directory_t *,
613 	    calloc(dir->dir_len, sizeof(dir->dir_tab[0])));
614 	if (dir->dir_tab == NULL)
615 		return -1;
616 
617 	if ((buf = CAST(char *, malloc(ss))) == NULL) {
618 		free(dir->dir_tab);
619 		return -1;
620 	}
621 
622 	for (j = i = 0; i < ns; i++, j++) {
623 		if (j >= CDF_LOOP_LIMIT) {
624 			DPRINTF(("Read dir loop limit"));
625 			errno = EFTYPE;
626 			goto out;
627 		}
628 		if (cdf_read_sector(info, buf, 0, ss, h, sid) != (ssize_t)ss) {
629 			DPRINTF(("Reading directory sector %d", sid));
630 			goto out;
631 		}
632 		for (j = 0; j < nd; j++) {
633 			cdf_unpack_dir(&dir->dir_tab[i * nd + j],
634 			    &buf[j * CDF_DIRECTORY_SIZE]);
635 		}
636 		sid = CDF_TOLE4((uint32_t)sat->sat_tab[sid]);
637 	}
638 	if (NEED_SWAP)
639 		for (i = 0; i < dir->dir_len; i++)
640 			cdf_swap_dir(&dir->dir_tab[i]);
641 	free(buf);
642 	return 0;
643 out:
644 	free(dir->dir_tab);
645 	free(buf);
646 	return -1;
647 }
648 
649 
650 int
cdf_read_ssat(const cdf_info_t * info,const cdf_header_t * h,const cdf_sat_t * sat,cdf_sat_t * ssat)651 cdf_read_ssat(const cdf_info_t *info, const cdf_header_t *h,
652     const cdf_sat_t *sat, cdf_sat_t *ssat)
653 {
654 	size_t i, j;
655 	size_t ss = CDF_SEC_SIZE(h);
656 	cdf_secid_t sid = h->h_secid_first_sector_in_short_sat;
657 
658 	ssat->sat_len = cdf_count_chain(sat, sid, CDF_SEC_SIZE(h));
659 	if (ssat->sat_len == (size_t)-1)
660 		return -1;
661 
662 	ssat->sat_tab = CAST(cdf_secid_t *, calloc(ssat->sat_len, ss));
663 	if (ssat->sat_tab == NULL)
664 		return -1;
665 
666 	for (j = i = 0; sid >= 0; i++, j++) {
667 		if (j >= CDF_LOOP_LIMIT) {
668 			DPRINTF(("Read short sat sector loop limit"));
669 			errno = EFTYPE;
670 			goto out;
671 		}
672 		if (i >= ssat->sat_len) {
673 			DPRINTF(("Out of bounds reading short sector chain "
674 			    "%" SIZE_T_FORMAT "u > %" SIZE_T_FORMAT "u\n", i,
675 			    ssat->sat_len));
676 			errno = EFTYPE;
677 			goto out;
678 		}
679 		if (cdf_read_sector(info, ssat->sat_tab, i * ss, ss, h, sid) !=
680 		    (ssize_t)ss) {
681 			DPRINTF(("Reading short sat sector %d", sid));
682 			goto out;
683 		}
684 		sid = CDF_TOLE4((uint32_t)sat->sat_tab[sid]);
685 	}
686 	return 0;
687 out:
688 	free(ssat->sat_tab);
689 	return -1;
690 }
691 
692 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)693 cdf_read_short_stream(const cdf_info_t *info, const cdf_header_t *h,
694     const cdf_sat_t *sat, const cdf_dir_t *dir, cdf_stream_t *scn)
695 {
696 	size_t i;
697 	const cdf_directory_t *d;
698 
699 	for (i = 0; i < dir->dir_len; i++)
700 		if (dir->dir_tab[i].d_type == CDF_DIR_TYPE_ROOT_STORAGE)
701 			break;
702 
703 	/* If the it is not there, just fake it; some docs don't have it */
704 	if (i == dir->dir_len)
705 		goto out;
706 	d = &dir->dir_tab[i];
707 
708 	/* If the it is not there, just fake it; some docs don't have it */
709 	if (d->d_stream_first_sector < 0)
710 		goto out;
711 
712 	return	cdf_read_long_sector_chain(info, h, sat,
713 	    d->d_stream_first_sector, d->d_size, scn);
714 out:
715 	scn->sst_tab = NULL;
716 	scn->sst_len = 0;
717 	scn->sst_dirlen = 0;
718 	return 0;
719 }
720 
721 static int
cdf_namecmp(const char * d,const uint16_t * s,size_t l)722 cdf_namecmp(const char *d, const uint16_t *s, size_t l)
723 {
724 	for (; l--; d++, s++)
725 		if (*d != CDF_TOLE2(*s))
726 			return (unsigned char)*d - CDF_TOLE2(*s);
727 	return 0;
728 }
729 
730 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)731 cdf_read_summary_info(const cdf_info_t *info, const cdf_header_t *h,
732     const cdf_sat_t *sat, const cdf_sat_t *ssat, const cdf_stream_t *sst,
733     const cdf_dir_t *dir, cdf_stream_t *scn)
734 {
735 	size_t i;
736 	const cdf_directory_t *d;
737 	static const char name[] = "\05SummaryInformation";
738 
739 	for (i = dir->dir_len; i > 0; i--)
740 		if (dir->dir_tab[i - 1].d_type == CDF_DIR_TYPE_USER_STREAM &&
741 		    cdf_namecmp(name, dir->dir_tab[i - 1].d_name, sizeof(name))
742 		    == 0)
743 			break;
744 
745 	if (i == 0) {
746 		DPRINTF(("Cannot find summary information section\n"));
747 		errno = ESRCH;
748 		return -1;
749 	}
750 	d = &dir->dir_tab[i - 1];
751 	return cdf_read_sector_chain(info, h, sat, ssat, sst,
752 	    d->d_stream_first_sector, d->d_size, scn);
753 }
754 
755 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)756 cdf_read_property_info(const cdf_stream_t *sst, const cdf_header_t *h,
757     uint32_t offs, cdf_property_info_t **info, size_t *count, size_t *maxcount)
758 {
759 	const cdf_section_header_t *shp;
760 	cdf_section_header_t sh;
761 	const uint8_t *p, *q, *e;
762 	int16_t s16;
763 	int32_t s32;
764 	uint32_t u32;
765 	int64_t s64;
766 	uint64_t u64;
767 	cdf_timestamp_t tp;
768 	size_t i, o, o4, nelements, j;
769 	cdf_property_info_t *inp;
770 
771 	if (offs > UINT32_MAX / 4) {
772 		errno = EFTYPE;
773 		goto out;
774 	}
775 	shp = CAST(const cdf_section_header_t *, (const void *)
776 	    ((const char *)sst->sst_tab + offs));
777 	if (cdf_check_stream_offset(sst, h, shp, sizeof(*shp), __LINE__) == -1)
778 		goto out;
779 	sh.sh_len = CDF_TOLE4(shp->sh_len);
780 #define CDF_SHLEN_LIMIT (UINT32_MAX / 8)
781 	if (sh.sh_len > CDF_SHLEN_LIMIT) {
782 		errno = EFTYPE;
783 		goto out;
784 	}
785 	sh.sh_properties = CDF_TOLE4(shp->sh_properties);
786 #define CDF_PROP_LIMIT (UINT32_MAX / (4 * sizeof(*inp)))
787 	if (sh.sh_properties > CDF_PROP_LIMIT)
788 		goto out;
789 	DPRINTF(("section len: %u properties %u\n", sh.sh_len,
790 	    sh.sh_properties));
791 	if (*maxcount) {
792 		if (*maxcount > CDF_PROP_LIMIT)
793 			goto out;
794 		*maxcount += sh.sh_properties;
795 		inp = CAST(cdf_property_info_t *,
796 		    realloc(*info, *maxcount * sizeof(*inp)));
797 	} else {
798 		*maxcount = sh.sh_properties;
799 		inp = CAST(cdf_property_info_t *,
800 		    malloc(*maxcount * sizeof(*inp)));
801 	}
802 	if (inp == NULL)
803 		goto out;
804 	*info = inp;
805 	inp += *count;
806 	*count += sh.sh_properties;
807 	p = CAST(const uint8_t *, (const void *)
808 	    ((const char *)(const void *)sst->sst_tab +
809 	    offs + sizeof(sh)));
810 	e = CAST(const uint8_t *, (const void *)
811 	    (((const char *)(const void *)shp) + sh.sh_len));
812 	if (cdf_check_stream_offset(sst, h, e, 0, __LINE__) == -1)
813 		goto out;
814 	for (i = 0; i < sh.sh_properties; i++) {
815 		size_t ofs, tail = (i << 1) + 1;
816 		if (cdf_check_stream_offset(sst, h, p, tail * sizeof(uint32_t),
817 		    __LINE__) == -1)
818 			goto out;
819 		ofs = CDF_GETUINT32(p, tail);
820 		q = (const uint8_t *)(const void *)
821 		    ((const char *)(const void *)p + ofs
822 		    - 2 * sizeof(uint32_t));
823 		if (q < p || q > e) {
824 			DPRINTF(("Ran of the end %p > %p\n", q, e));
825 			goto out;
826 		}
827 		inp[i].pi_id = CDF_GETUINT32(p, i << 1);
828 		inp[i].pi_type = CDF_GETUINT32(q, 0);
829 		DPRINTF(("%" SIZE_T_FORMAT "u) id=%x type=%x offs=0x%tx,0x%x\n",
830 		    i, inp[i].pi_id, inp[i].pi_type, q - p, offs));
831 		if (inp[i].pi_type & CDF_VECTOR) {
832 			nelements = CDF_GETUINT32(q, 1);
833 			if (nelements == 0) {
834 				DPRINTF(("CDF_VECTOR with nelements == 0\n"));
835 				goto out;
836 			}
837 			o = 2;
838 		} else {
839 			nelements = 1;
840 			o = 1;
841 		}
842 		o4 = o * sizeof(uint32_t);
843 		if (inp[i].pi_type & (CDF_ARRAY|CDF_BYREF|CDF_RESERVED))
844 			goto unknown;
845 		switch (inp[i].pi_type & CDF_TYPEMASK) {
846 		case CDF_NULL:
847 		case CDF_EMPTY:
848 			break;
849 		case CDF_SIGNED16:
850 			if (inp[i].pi_type & CDF_VECTOR)
851 				goto unknown;
852 			(void)memcpy(&s16, &q[o4], sizeof(s16));
853 			inp[i].pi_s16 = CDF_TOLE2(s16);
854 			break;
855 		case CDF_SIGNED32:
856 			if (inp[i].pi_type & CDF_VECTOR)
857 				goto unknown;
858 			(void)memcpy(&s32, &q[o4], sizeof(s32));
859 			inp[i].pi_s32 = CDF_TOLE4((uint32_t)s32);
860 			break;
861 		case CDF_BOOL:
862 		case CDF_UNSIGNED32:
863 			if (inp[i].pi_type & CDF_VECTOR)
864 				goto unknown;
865 			(void)memcpy(&u32, &q[o4], sizeof(u32));
866 			inp[i].pi_u32 = CDF_TOLE4(u32);
867 			break;
868 		case CDF_SIGNED64:
869 			if (inp[i].pi_type & CDF_VECTOR)
870 				goto unknown;
871 			(void)memcpy(&s64, &q[o4], sizeof(s64));
872 			inp[i].pi_s64 = CDF_TOLE8((uint64_t)s64);
873 			break;
874 		case CDF_UNSIGNED64:
875 			if (inp[i].pi_type & CDF_VECTOR)
876 				goto unknown;
877 			(void)memcpy(&u64, &q[o4], sizeof(u64));
878 			inp[i].pi_u64 = CDF_TOLE8((uint64_t)u64);
879 			break;
880 		case CDF_FLOAT:
881 			if (inp[i].pi_type & CDF_VECTOR)
882 				goto unknown;
883 			(void)memcpy(&u32, &q[o4], sizeof(u32));
884 			u32 = CDF_TOLE4(u32);
885 			memcpy(&inp[i].pi_f, &u32, sizeof(inp[i].pi_f));
886 			break;
887 		case CDF_DOUBLE:
888 			if (inp[i].pi_type & CDF_VECTOR)
889 				goto unknown;
890 			(void)memcpy(&u64, &q[o4], sizeof(u64));
891 			u64 = CDF_TOLE8((uint64_t)u64);
892 			memcpy(&inp[i].pi_d, &u64, sizeof(inp[i].pi_d));
893 			break;
894 		case CDF_LENGTH32_STRING:
895 		case CDF_LENGTH32_WSTRING:
896 			if (nelements > 1) {
897 				size_t nelem = inp - *info;
898 				if (*maxcount > CDF_PROP_LIMIT
899 				    || nelements > CDF_PROP_LIMIT)
900 					goto out;
901 				*maxcount += nelements;
902 				inp = CAST(cdf_property_info_t *,
903 				    realloc(*info, *maxcount * sizeof(*inp)));
904 				if (inp == NULL)
905 					goto out;
906 				*info = inp;
907 				inp = *info + nelem;
908 			}
909 			DPRINTF(("nelements = %" SIZE_T_FORMAT "u\n",
910 			    nelements));
911 			for (j = 0; j < nelements && i < sh.sh_properties;
912 			    j++, i++)
913 			{
914 				uint32_t l = CDF_GETUINT32(q, o);
915 				inp[i].pi_str.s_len = l;
916 				inp[i].pi_str.s_buf = (const char *)
917 				    (const void *)(&q[o4 + sizeof(l)]);
918 				DPRINTF(("l = %d, r = %" SIZE_T_FORMAT
919 				    "u, s = %s\n", l,
920 				    CDF_ROUND(l, sizeof(l)),
921 				    inp[i].pi_str.s_buf));
922 				if (l & 1)
923 					l++;
924 				o += l >> 1;
925 				if (q + o >= e)
926 					goto out;
927 				o4 = o * sizeof(uint32_t);
928 			}
929 			i--;
930 			break;
931 		case CDF_FILETIME:
932 			if (inp[i].pi_type & CDF_VECTOR)
933 				goto unknown;
934 			(void)memcpy(&tp, &q[o4], sizeof(tp));
935 			inp[i].pi_tp = CDF_TOLE8((uint64_t)tp);
936 			break;
937 		case CDF_CLIPBOARD:
938 			if (inp[i].pi_type & CDF_VECTOR)
939 				goto unknown;
940 			break;
941 		default:
942 		unknown:
943 			DPRINTF(("Don't know how to deal with %x\n",
944 			    inp[i].pi_type));
945 			break;
946 		}
947 	}
948 	return 0;
949 out:
950 	free(*info);
951 	return -1;
952 }
953 
954 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)955 cdf_unpack_summary_info(const cdf_stream_t *sst, const cdf_header_t *h,
956     cdf_summary_info_header_t *ssi, cdf_property_info_t **info, size_t *count)
957 {
958 	size_t maxcount;
959 	const cdf_summary_info_header_t *si =
960 	    CAST(const cdf_summary_info_header_t *, sst->sst_tab);
961 	const cdf_section_declaration_t *sd =
962 	    CAST(const cdf_section_declaration_t *, (const void *)
963 	    ((const char *)sst->sst_tab + CDF_SECTION_DECLARATION_OFFSET));
964 
965 	if (cdf_check_stream_offset(sst, h, si, sizeof(*si), __LINE__) == -1 ||
966 	    cdf_check_stream_offset(sst, h, sd, sizeof(*sd), __LINE__) == -1)
967 		return -1;
968 	ssi->si_byte_order = CDF_TOLE2(si->si_byte_order);
969 	ssi->si_os_version = CDF_TOLE2(si->si_os_version);
970 	ssi->si_os = CDF_TOLE2(si->si_os);
971 	ssi->si_class = si->si_class;
972 	cdf_swap_class(&ssi->si_class);
973 	ssi->si_count = CDF_TOLE4(si->si_count);
974 	*count = 0;
975 	maxcount = 0;
976 	*info = NULL;
977 	if (cdf_read_property_info(sst, h, CDF_TOLE4(sd->sd_offset), info,
978 		count, &maxcount) == -1)
979 			return -1;
980 	return 0;
981 }
982 
983 
984 
985 int
cdf_print_classid(char * buf,size_t buflen,const cdf_classid_t * id)986 cdf_print_classid(char *buf, size_t buflen, const cdf_classid_t *id)
987 {
988 	return snprintf(buf, buflen, "%.8x-%.4x-%.4x-%.2x%.2x-"
989 	    "%.2x%.2x%.2x%.2x%.2x%.2x", id->cl_dword, id->cl_word[0],
990 	    id->cl_word[1], id->cl_two[0], id->cl_two[1], id->cl_six[0],
991 	    id->cl_six[1], id->cl_six[2], id->cl_six[3], id->cl_six[4],
992 	    id->cl_six[5]);
993 }
994 
995 static const struct {
996 	uint32_t v;
997 	const char *n;
998 } vn[] = {
999 	{ CDF_PROPERTY_CODE_PAGE, "Code page" },
1000 	{ CDF_PROPERTY_TITLE, "Title" },
1001 	{ CDF_PROPERTY_SUBJECT, "Subject" },
1002 	{ CDF_PROPERTY_AUTHOR, "Author" },
1003 	{ CDF_PROPERTY_KEYWORDS, "Keywords" },
1004 	{ CDF_PROPERTY_COMMENTS, "Comments" },
1005 	{ CDF_PROPERTY_TEMPLATE, "Template" },
1006 	{ CDF_PROPERTY_LAST_SAVED_BY, "Last Saved By" },
1007 	{ CDF_PROPERTY_REVISION_NUMBER, "Revision Number" },
1008 	{ CDF_PROPERTY_TOTAL_EDITING_TIME, "Total Editing Time" },
1009 	{ CDF_PROPERTY_LAST_PRINTED, "Last Printed" },
1010 	{ CDF_PROPERTY_CREATE_TIME, "Create Time/Date" },
1011 	{ CDF_PROPERTY_LAST_SAVED_TIME, "Last Saved Time/Date" },
1012 	{ CDF_PROPERTY_NUMBER_OF_PAGES, "Number of Pages" },
1013 	{ CDF_PROPERTY_NUMBER_OF_WORDS, "Number of Words" },
1014 	{ CDF_PROPERTY_NUMBER_OF_CHARACTERS, "Number of Characters" },
1015 	{ CDF_PROPERTY_THUMBNAIL, "Thumbnail" },
1016 	{ CDF_PROPERTY_NAME_OF_APPLICATION, "Name of Creating Application" },
1017 	{ CDF_PROPERTY_SECURITY, "Security" },
1018 	{ CDF_PROPERTY_LOCALE_ID, "Locale ID" },
1019 };
1020 
1021 int
cdf_print_property_name(char * buf,size_t bufsiz,uint32_t p)1022 cdf_print_property_name(char *buf, size_t bufsiz, uint32_t p)
1023 {
1024 	size_t i;
1025 
1026 	for (i = 0; i < __arraycount(vn); i++)
1027 		if (vn[i].v == p)
1028 			return snprintf(buf, bufsiz, "%s", vn[i].n);
1029 	return snprintf(buf, bufsiz, "0x%x", p);
1030 }
1031 
1032 int
cdf_print_elapsed_time(char * buf,size_t bufsiz,cdf_timestamp_t ts)1033 cdf_print_elapsed_time(char *buf, size_t bufsiz, cdf_timestamp_t ts)
1034 {
1035 	int len = 0;
1036 	int days, hours, mins, secs;
1037 
1038 	ts /= CDF_TIME_PREC;
1039 	secs = (int)(ts % 60);
1040 	ts /= 60;
1041 	mins = (int)(ts % 60);
1042 	ts /= 60;
1043 	hours = (int)(ts % 24);
1044 	ts /= 24;
1045 	days = (int)ts;
1046 
1047 	if (days) {
1048 		len += snprintf(buf + len, bufsiz - len, "%dd+", days);
1049 		if ((size_t)len >= bufsiz)
1050 			return len;
1051 	}
1052 
1053 	if (days || hours) {
1054 		len += snprintf(buf + len, bufsiz - len, "%.2d:", hours);
1055 		if ((size_t)len >= bufsiz)
1056 			return len;
1057 	}
1058 
1059 	len += snprintf(buf + len, bufsiz - len, "%.2d:", mins);
1060 	if ((size_t)len >= bufsiz)
1061 		return len;
1062 
1063 	len += snprintf(buf + len, bufsiz - len, "%.2d", secs);
1064 	return len;
1065 }
1066 
1067 
1068 #ifdef CDF_DEBUG
1069 void
cdf_dump_header(const cdf_header_t * h)1070 cdf_dump_header(const cdf_header_t *h)
1071 {
1072 	size_t i;
1073 
1074 #define DUMP(a, b) (void)fprintf(stderr, "%40.40s = " a "\n", # b, h->h_ ## b)
1075 #define DUMP2(a, b) (void)fprintf(stderr, "%40.40s = " a " (" a ")\n", # b, \
1076     h->h_ ## b, 1 << h->h_ ## b)
1077 	DUMP("%d", revision);
1078 	DUMP("%d", version);
1079 	DUMP("0x%x", byte_order);
1080 	DUMP2("%d", sec_size_p2);
1081 	DUMP2("%d", short_sec_size_p2);
1082 	DUMP("%d", num_sectors_in_sat);
1083 	DUMP("%d", secid_first_directory);
1084 	DUMP("%d", min_size_standard_stream);
1085 	DUMP("%d", secid_first_sector_in_short_sat);
1086 	DUMP("%d", num_sectors_in_short_sat);
1087 	DUMP("%d", secid_first_sector_in_master_sat);
1088 	DUMP("%d", num_sectors_in_master_sat);
1089 	for (i = 0; i < __arraycount(h->h_master_sat); i++) {
1090 		if (h->h_master_sat[i] == CDF_SECID_FREE)
1091 			break;
1092 		(void)fprintf(stderr, "%35.35s[%.3zu] = %d\n",
1093 		    "master_sat", i, h->h_master_sat[i]);
1094 	}
1095 }
1096 
1097 void
cdf_dump_sat(const char * prefix,const cdf_sat_t * sat,size_t size)1098 cdf_dump_sat(const char *prefix, const cdf_sat_t *sat, size_t size)
1099 {
1100 	size_t i, j, s = size / sizeof(cdf_secid_t);
1101 
1102 	for (i = 0; i < sat->sat_len; i++) {
1103 		(void)fprintf(stderr, "%s[%" SIZE_T_FORMAT "u]:\n%.6"
1104 		    SIZE_T_FORMAT "u: ", prefix, i, i * s);
1105 		for (j = 0; j < s; j++) {
1106 			(void)fprintf(stderr, "%5d, ",
1107 			    CDF_TOLE4(sat->sat_tab[s * i + j]));
1108 			if ((j + 1) % 10 == 0)
1109 				(void)fprintf(stderr, "\n%.6" SIZE_T_FORMAT
1110 				    "u: ", i * s + j + 1);
1111 		}
1112 		(void)fprintf(stderr, "\n");
1113 	}
1114 }
1115 
1116 void
cdf_dump(void * v,size_t len)1117 cdf_dump(void *v, size_t len)
1118 {
1119 	size_t i, j;
1120 	unsigned char *p = v;
1121 	char abuf[16];
1122 	(void)fprintf(stderr, "%.4x: ", 0);
1123 	for (i = 0, j = 0; i < len; i++, p++) {
1124 		(void)fprintf(stderr, "%.2x ", *p);
1125 		abuf[j++] = isprint(*p) ? *p : '.';
1126 		if (j == 16) {
1127 			j = 0;
1128 			abuf[15] = '\0';
1129 			(void)fprintf(stderr, "%s\n%.4" SIZE_T_FORMAT "x: ",
1130 			    abuf, i + 1);
1131 		}
1132 	}
1133 	(void)fprintf(stderr, "\n");
1134 }
1135 
1136 void
cdf_dump_stream(const cdf_header_t * h,const cdf_stream_t * sst)1137 cdf_dump_stream(const cdf_header_t *h, const cdf_stream_t *sst)
1138 {
1139 	size_t ss = sst->sst_dirlen < h->h_min_size_standard_stream ?
1140 	    CDF_SHORT_SEC_SIZE(h) : CDF_SEC_SIZE(h);
1141 	cdf_dump(sst->sst_tab, ss * sst->sst_len);
1142 }
1143 
1144 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)1145 cdf_dump_dir(const cdf_info_t *info, const cdf_header_t *h,
1146     const cdf_sat_t *sat, const cdf_sat_t *ssat, const cdf_stream_t *sst,
1147     const cdf_dir_t *dir)
1148 {
1149 	size_t i, j;
1150 	cdf_directory_t *d;
1151 	char name[__arraycount(d->d_name)];
1152 	cdf_stream_t scn;
1153 	struct timeval ts;
1154 
1155 	static const char *types[] = { "empty", "user storage",
1156 	    "user stream", "lockbytes", "property", "root storage" };
1157 
1158 	for (i = 0; i < dir->dir_len; i++) {
1159 		d = &dir->dir_tab[i];
1160 		for (j = 0; j < sizeof(name); j++)
1161 			name[j] = (char)CDF_TOLE2(d->d_name[j]);
1162 		(void)fprintf(stderr, "Directory %" SIZE_T_FORMAT "u: %s\n",
1163 		    i, name);
1164 		if (d->d_type < __arraycount(types))
1165 			(void)fprintf(stderr, "Type: %s\n", types[d->d_type]);
1166 		else
1167 			(void)fprintf(stderr, "Type: %d\n", d->d_type);
1168 		(void)fprintf(stderr, "Color: %s\n",
1169 		    d->d_color ? "black" : "red");
1170 		(void)fprintf(stderr, "Left child: %d\n", d->d_left_child);
1171 		(void)fprintf(stderr, "Right child: %d\n", d->d_right_child);
1172 		(void)fprintf(stderr, "Flags: 0x%x\n", d->d_flags);
1173 		cdf_timestamp_to_timespec(&ts, d->d_created);
1174 		(void)fprintf(stderr, "Created %s", cdf_ctime(&ts.tv_sec));
1175 		cdf_timestamp_to_timespec(&ts, d->d_modified);
1176 		(void)fprintf(stderr, "Modified %s", cdf_ctime(&ts.tv_sec));
1177 		(void)fprintf(stderr, "Stream %d\n", d->d_stream_first_sector);
1178 		(void)fprintf(stderr, "Size %d\n", d->d_size);
1179 		switch (d->d_type) {
1180 		case CDF_DIR_TYPE_USER_STORAGE:
1181 			(void)fprintf(stderr, "Storage: %d\n", d->d_storage);
1182 			break;
1183 		case CDF_DIR_TYPE_USER_STREAM:
1184 			if (sst == NULL)
1185 				break;
1186 			if (cdf_read_sector_chain(info, h, sat, ssat, sst,
1187 			    d->d_stream_first_sector, d->d_size, &scn) == -1) {
1188 				warn("Can't read stream for %s at %d len %d",
1189 				    name, d->d_stream_first_sector, d->d_size);
1190 				break;
1191 			}
1192 			cdf_dump_stream(h, &scn);
1193 			free(scn.sst_tab);
1194 			break;
1195 		default:
1196 			break;
1197 		}
1198 
1199 	}
1200 }
1201 
1202 void
cdf_dump_property_info(const cdf_property_info_t * info,size_t count)1203 cdf_dump_property_info(const cdf_property_info_t *info, size_t count)
1204 {
1205 	cdf_timestamp_t tp;
1206 	struct timeval ts;
1207 	char buf[64];
1208 	size_t i, j;
1209 
1210 	for (i = 0; i < count; i++) {
1211 		cdf_print_property_name(buf, sizeof(buf), info[i].pi_id);
1212 		(void)fprintf(stderr, "%" SIZE_T_FORMAT "u) %s: ", i, buf);
1213 		switch (info[i].pi_type) {
1214 		case CDF_NULL:
1215 			break;
1216 		case CDF_SIGNED16:
1217 			(void)fprintf(stderr, "signed 16 [%hd]\n",
1218 			    info[i].pi_s16);
1219 			break;
1220 		case CDF_SIGNED32:
1221 			(void)fprintf(stderr, "signed 32 [%d]\n",
1222 			    info[i].pi_s32);
1223 			break;
1224 		case CDF_UNSIGNED32:
1225 			(void)fprintf(stderr, "unsigned 32 [%u]\n",
1226 			    info[i].pi_u32);
1227 			break;
1228 		case CDF_FLOAT:
1229 			(void)fprintf(stderr, "float [%g]\n",
1230 			    info[i].pi_f);
1231 			break;
1232 		case CDF_DOUBLE:
1233 			(void)fprintf(stderr, "double [%g]\n",
1234 			    info[i].pi_d);
1235 			break;
1236 		case CDF_LENGTH32_STRING:
1237 			(void)fprintf(stderr, "string %u [%.*s]\n",
1238 			    info[i].pi_str.s_len,
1239 			    info[i].pi_str.s_len, info[i].pi_str.s_buf);
1240 			break;
1241 		case CDF_LENGTH32_WSTRING:
1242 			(void)fprintf(stderr, "string %u [",
1243 			    info[i].pi_str.s_len);
1244 			for (j = 0; j < info[i].pi_str.s_len - 1; j++)
1245 			    (void)fputc(info[i].pi_str.s_buf[j << 1], stderr);
1246 			(void)fprintf(stderr, "]\n");
1247 			break;
1248 		case CDF_FILETIME:
1249 			tp = info[i].pi_tp;
1250 #if defined(PHP_WIN32) && _MSC_VER <= 1500
1251 		if (tp < 1000000000000000i64) {
1252 #else
1253 			if (tp < 1000000000000000LL) {
1254 #endif
1255 				cdf_print_elapsed_time(buf, sizeof(buf), tp);
1256 				(void)fprintf(stderr, "timestamp %s\n", buf);
1257 			} else {
1258 				cdf_timestamp_to_timespec(&ts, tp);
1259 				(void)fprintf(stderr, "timestamp %s",
1260 				    cdf_ctime(&ts.tv_sec));
1261 			}
1262 			break;
1263 		case CDF_CLIPBOARD:
1264 			(void)fprintf(stderr, "CLIPBOARD %u\n", info[i].pi_u32);
1265 			break;
1266 		default:
1267 			DPRINTF(("Don't know how to deal with %x\n",
1268 			    info[i].pi_type));
1269 			break;
1270 		}
1271 	}
1272 }
1273 
1274 
1275 void
1276 cdf_dump_summary_info(const cdf_header_t *h, const cdf_stream_t *sst)
1277 {
1278 	char buf[128];
1279 	cdf_summary_info_header_t ssi;
1280 	cdf_property_info_t *info;
1281 	size_t count;
1282 
1283 	(void)&h;
1284 	if (cdf_unpack_summary_info(sst, h, &ssi, &info, &count) == -1)
1285 		return;
1286 	(void)fprintf(stderr, "Endian: %x\n", ssi.si_byte_order);
1287 	(void)fprintf(stderr, "Os Version %d.%d\n", ssi.si_os_version & 0xff,
1288 		ssi.si_os_version >> 8);
1289 	(void)fprintf(stderr, "Os %d\n", ssi.si_os);
1290 	cdf_print_classid(buf, sizeof(buf), &ssi.si_class);
1291 	(void)fprintf(stderr, "Class %s\n", buf);
1292 	(void)fprintf(stderr, "Count %d\n", ssi.si_count);
1293 	cdf_dump_property_info(info, count);
1294 	free(info);
1295 }
1296 
1297 #endif
1298 
1299 #ifdef TEST
1300 int
1301 main(int argc, char *argv[])
1302 {
1303 	int i;
1304 	cdf_header_t h;
1305 	cdf_sat_t sat, ssat;
1306 	cdf_stream_t sst, scn;
1307 	cdf_dir_t dir;
1308 	cdf_info_t info;
1309 
1310 	if (argc < 2) {
1311 		(void)fprintf(stderr, "Usage: %s <filename>\n", getprogname());
1312 		return -1;
1313 	}
1314 
1315 	info.i_buf = NULL;
1316 	info.i_len = 0;
1317 	for (i = 1; i < argc; i++) {
1318 		if ((info.i_fd = open(argv[1], O_RDONLY)) == -1)
1319 			err(1, "Cannot open `%s'", argv[1]);
1320 
1321 		if (cdf_read_header(&info, &h) == -1)
1322 			err(1, "Cannot read header");
1323 #ifdef CDF_DEBUG
1324 		cdf_dump_header(&h);
1325 #endif
1326 
1327 		if (cdf_read_sat(&info, &h, &sat) == -1)
1328 			err(1, "Cannot read sat");
1329 #ifdef CDF_DEBUG
1330 		cdf_dump_sat("SAT", &sat, CDF_SEC_SIZE(&h));
1331 #endif
1332 
1333 		if (cdf_read_ssat(&info, &h, &sat, &ssat) == -1)
1334 			err(1, "Cannot read ssat");
1335 #ifdef CDF_DEBUG
1336 		cdf_dump_sat("SSAT", &ssat, CDF_SHORT_SEC_SIZE(&h));
1337 #endif
1338 
1339 		if (cdf_read_dir(&info, &h, &sat, &dir) == -1)
1340 			err(1, "Cannot read dir");
1341 
1342 		if (cdf_read_short_stream(&info, &h, &sat, &dir, &sst) == -1)
1343 			err(1, "Cannot read short stream");
1344 #ifdef CDF_DEBUG
1345 		cdf_dump_stream(&h, &sst);
1346 #endif
1347 
1348 #ifdef CDF_DEBUG
1349 		cdf_dump_dir(&info, &h, &sat, &ssat, &sst, &dir);
1350 #endif
1351 
1352 
1353 		if (cdf_read_summary_info(&info, &h, &sat, &ssat, &sst, &dir,
1354 		    &scn) == -1)
1355 			err(1, "Cannot read summary info");
1356 #ifdef CDF_DEBUG
1357 		cdf_dump_summary_info(&h, &scn);
1358 #endif
1359 
1360 		(void)close(info.i_fd);
1361 	}
1362 
1363 	return 0;
1364 }
1365 #endif
1366