xref: /dragonfly/contrib/file/src/cdf.c (revision 3b9cdfa3)
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 1.121 2021/10/20 13:56:15 christos Exp $")
39 #endif
40 
41 #include <assert.h>
42 #ifdef CDF_DEBUG
43 #include <err.h>
44 #endif
45 #include <stdlib.h>
46 #include <unistd.h>
47 #include <string.h>
48 #include <time.h>
49 #include <ctype.h>
50 #include <limits.h>
51 #ifdef HAVE_BYTESWAP_H
52 #include <byteswap.h>
53 #endif
54 #ifdef HAVE_SYS_BSWAP_H
55 #include <sys/bswap.h>
56 #endif
57 
58 #ifndef EFTYPE
59 #define EFTYPE EINVAL
60 #endif
61 
62 #ifndef SIZE_T_MAX
63 #define SIZE_T_MAX CAST(size_t, ~0ULL)
64 #endif
65 
66 #include "cdf.h"
67 
68 #ifdef CDF_DEBUG
69 #define DPRINTF(a) printf a, fflush(stdout)
70 #else
71 #define DPRINTF(a)
72 #endif
73 
74 static union {
75 	char s[4];
76 	uint32_t u;
77 } cdf_bo;
78 
79 #define NEED_SWAP	(cdf_bo.u == CAST(uint32_t, 0x01020304))
80 
81 #define CDF_TOLE8(x)	\
82     (CAST(uint64_t, NEED_SWAP ? _cdf_tole8(x) : CAST(uint64_t, x)))
83 #define CDF_TOLE4(x)	\
84     (CAST(uint32_t, NEED_SWAP ? _cdf_tole4(x) : CAST(uint32_t, x)))
85 #define CDF_TOLE2(x)	\
86     (CAST(uint16_t, NEED_SWAP ? _cdf_tole2(x) : CAST(uint16_t, x)))
87 #define CDF_TOLE(x)	(/*CONSTCOND*/sizeof(x) == 2 ? \
88 			    CDF_TOLE2(CAST(uint16_t, x)) : \
89 			(/*CONSTCOND*/sizeof(x) == 4 ? \
90 			    CDF_TOLE4(CAST(uint32_t, x)) : \
91 			    CDF_TOLE8(CAST(uint64_t, x))))
92 #define CDF_GETUINT32(x, y)	cdf_getuint32(x, y)
93 
94 #define CDF_MALLOC(n) cdf_malloc(__FILE__, __LINE__, (n))
95 #define CDF_REALLOC(p, n) cdf_realloc(__FILE__, __LINE__, (p), (n))
96 #define CDF_CALLOC(n, u) cdf_calloc(__FILE__, __LINE__, (n), (u))
97 
98 
99 /*ARGSUSED*/
100 static void *
cdf_malloc(const char * file,size_t line,size_t n)101 cdf_malloc(const char *file __attribute__((__unused__)),
102     size_t line __attribute__((__unused__)), size_t n)
103 {
104 	DPRINTF(("%s,%" SIZE_T_FORMAT "u: %s %" SIZE_T_FORMAT "u\n",
105 	    file, line, __func__, n));
106 	if (n == 0)
107 	    n++;
108 	return malloc(n);
109 }
110 
111 /*ARGSUSED*/
112 static void *
cdf_realloc(const char * file,size_t line,void * p,size_t n)113 cdf_realloc(const char *file __attribute__((__unused__)),
114     size_t line __attribute__((__unused__)), void *p, size_t n)
115 {
116 	DPRINTF(("%s,%" SIZE_T_FORMAT "u: %s %" SIZE_T_FORMAT "u\n",
117 	    file, line, __func__, n));
118 	return realloc(p, n);
119 }
120 
121 /*ARGSUSED*/
122 static void *
cdf_calloc(const char * file,size_t line,size_t n,size_t u)123 cdf_calloc(const char *file __attribute__((__unused__)),
124     size_t line __attribute__((__unused__)), size_t n, size_t u)
125 {
126 	DPRINTF(("%s,%" SIZE_T_FORMAT "u: %s %" SIZE_T_FORMAT "u %"
127 	    SIZE_T_FORMAT "u\n", file, line, __func__, n, u));
128 	if (n == 0)
129 	    n++;
130 	return calloc(n, u);
131 }
132 
133 #if defined(HAVE_BYTESWAP_H)
134 # define _cdf_tole2(x)	bswap_16(x)
135 # define _cdf_tole4(x)	bswap_32(x)
136 # define _cdf_tole8(x)	bswap_64(x)
137 #elif defined(HAVE_SYS_BSWAP_H)
138 # define _cdf_tole2(x)	bswap16(x)
139 # define _cdf_tole4(x)	bswap32(x)
140 # define _cdf_tole8(x)	bswap64(x)
141 #else
142 /*
143  * swap a short
144  */
145 static uint16_t
_cdf_tole2(uint16_t sv)146 _cdf_tole2(uint16_t sv)
147 {
148 	uint16_t rv;
149 	uint8_t *s = RCAST(uint8_t *, RCAST(void *, &sv));
150 	uint8_t *d = RCAST(uint8_t *, RCAST(void *, &rv));
151 	d[0] = s[1];
152 	d[1] = s[0];
153 	return rv;
154 }
155 
156 /*
157  * swap an int
158  */
159 static uint32_t
_cdf_tole4(uint32_t sv)160 _cdf_tole4(uint32_t sv)
161 {
162 	uint32_t rv;
163 	uint8_t *s = RCAST(uint8_t *, RCAST(void *, &sv));
164 	uint8_t *d = RCAST(uint8_t *, RCAST(void *, &rv));
165 	d[0] = s[3];
166 	d[1] = s[2];
167 	d[2] = s[1];
168 	d[3] = s[0];
169 	return rv;
170 }
171 
172 /*
173  * swap a quad
174  */
175 static uint64_t
_cdf_tole8(uint64_t sv)176 _cdf_tole8(uint64_t sv)
177 {
178 	uint64_t rv;
179 	uint8_t *s = RCAST(uint8_t *, RCAST(void *, &sv));
180 	uint8_t *d = RCAST(uint8_t *, RCAST(void *, &rv));
181 	d[0] = s[7];
182 	d[1] = s[6];
183 	d[2] = s[5];
184 	d[3] = s[4];
185 	d[4] = s[3];
186 	d[5] = s[2];
187 	d[6] = s[1];
188 	d[7] = s[0];
189 	return rv;
190 }
191 #endif
192 
193 /*
194  * grab a uint32_t from a possibly unaligned address, and return it in
195  * the native host order.
196  */
197 static uint32_t
cdf_getuint32(const uint8_t * p,size_t offs)198 cdf_getuint32(const uint8_t *p, size_t offs)
199 {
200 	uint32_t rv;
201 	(void)memcpy(&rv, p + offs * sizeof(uint32_t), sizeof(rv));
202 	return CDF_TOLE4(rv);
203 }
204 
205 #define CDF_UNPACK(a)	\
206     (void)memcpy(&(a), &buf[len], sizeof(a)), len += sizeof(a)
207 #define CDF_UNPACKA(a)	\
208     (void)memcpy((a), &buf[len], sizeof(a)), len += sizeof(a)
209 
210 uint16_t
cdf_tole2(uint16_t sv)211 cdf_tole2(uint16_t sv)
212 {
213 	return CDF_TOLE2(sv);
214 }
215 
216 uint32_t
cdf_tole4(uint32_t sv)217 cdf_tole4(uint32_t sv)
218 {
219 	return CDF_TOLE4(sv);
220 }
221 
222 uint64_t
cdf_tole8(uint64_t sv)223 cdf_tole8(uint64_t sv)
224 {
225 	return CDF_TOLE8(sv);
226 }
227 
228 void
cdf_swap_header(cdf_header_t * h)229 cdf_swap_header(cdf_header_t *h)
230 {
231 	size_t i;
232 
233 	h->h_magic = CDF_TOLE8(h->h_magic);
234 	h->h_uuid[0] = CDF_TOLE8(h->h_uuid[0]);
235 	h->h_uuid[1] = CDF_TOLE8(h->h_uuid[1]);
236 	h->h_revision = CDF_TOLE2(h->h_revision);
237 	h->h_version = CDF_TOLE2(h->h_version);
238 	h->h_byte_order = CDF_TOLE2(h->h_byte_order);
239 	h->h_sec_size_p2 = CDF_TOLE2(h->h_sec_size_p2);
240 	h->h_short_sec_size_p2 = CDF_TOLE2(h->h_short_sec_size_p2);
241 	h->h_num_sectors_in_sat = CDF_TOLE4(h->h_num_sectors_in_sat);
242 	h->h_secid_first_directory = CDF_TOLE4(h->h_secid_first_directory);
243 	h->h_min_size_standard_stream =
244 	    CDF_TOLE4(h->h_min_size_standard_stream);
245 	h->h_secid_first_sector_in_short_sat =
246 	    CDF_TOLE4(CAST(uint32_t, h->h_secid_first_sector_in_short_sat));
247 	h->h_num_sectors_in_short_sat =
248 	    CDF_TOLE4(h->h_num_sectors_in_short_sat);
249 	h->h_secid_first_sector_in_master_sat =
250 	    CDF_TOLE4(CAST(uint32_t, h->h_secid_first_sector_in_master_sat));
251 	h->h_num_sectors_in_master_sat =
252 	    CDF_TOLE4(h->h_num_sectors_in_master_sat);
253 	for (i = 0; i < __arraycount(h->h_master_sat); i++) {
254 		h->h_master_sat[i] =
255 		    CDF_TOLE4(CAST(uint32_t, h->h_master_sat[i]));
256 	}
257 }
258 
259 void
cdf_unpack_header(cdf_header_t * h,char * buf)260 cdf_unpack_header(cdf_header_t *h, char *buf)
261 {
262 	size_t i;
263 	size_t len = 0;
264 
265 	CDF_UNPACK(h->h_magic);
266 	CDF_UNPACKA(h->h_uuid);
267 	CDF_UNPACK(h->h_revision);
268 	CDF_UNPACK(h->h_version);
269 	CDF_UNPACK(h->h_byte_order);
270 	CDF_UNPACK(h->h_sec_size_p2);
271 	CDF_UNPACK(h->h_short_sec_size_p2);
272 	CDF_UNPACKA(h->h_unused0);
273 	CDF_UNPACK(h->h_num_sectors_in_sat);
274 	CDF_UNPACK(h->h_secid_first_directory);
275 	CDF_UNPACKA(h->h_unused1);
276 	CDF_UNPACK(h->h_min_size_standard_stream);
277 	CDF_UNPACK(h->h_secid_first_sector_in_short_sat);
278 	CDF_UNPACK(h->h_num_sectors_in_short_sat);
279 	CDF_UNPACK(h->h_secid_first_sector_in_master_sat);
280 	CDF_UNPACK(h->h_num_sectors_in_master_sat);
281 	for (i = 0; i < __arraycount(h->h_master_sat); i++)
282 		CDF_UNPACK(h->h_master_sat[i]);
283 }
284 
285 void
cdf_swap_dir(cdf_directory_t * d)286 cdf_swap_dir(cdf_directory_t *d)
287 {
288 	d->d_namelen = CDF_TOLE2(d->d_namelen);
289 	d->d_left_child = CDF_TOLE4(CAST(uint32_t, d->d_left_child));
290 	d->d_right_child = CDF_TOLE4(CAST(uint32_t, d->d_right_child));
291 	d->d_storage = CDF_TOLE4(CAST(uint32_t, d->d_storage));
292 	d->d_storage_uuid[0] = CDF_TOLE8(d->d_storage_uuid[0]);
293 	d->d_storage_uuid[1] = CDF_TOLE8(d->d_storage_uuid[1]);
294 	d->d_flags = CDF_TOLE4(d->d_flags);
295 	d->d_created = CDF_TOLE8(CAST(uint64_t, d->d_created));
296 	d->d_modified = CDF_TOLE8(CAST(uint64_t, d->d_modified));
297 	d->d_stream_first_sector = CDF_TOLE4(
298 	    CAST(uint32_t, d->d_stream_first_sector));
299 	d->d_size = CDF_TOLE4(d->d_size);
300 }
301 
302 void
cdf_swap_class(cdf_classid_t * d)303 cdf_swap_class(cdf_classid_t *d)
304 {
305 	d->cl_dword = CDF_TOLE4(d->cl_dword);
306 	d->cl_word[0] = CDF_TOLE2(d->cl_word[0]);
307 	d->cl_word[1] = CDF_TOLE2(d->cl_word[1]);
308 }
309 
310 void
cdf_unpack_dir(cdf_directory_t * d,char * buf)311 cdf_unpack_dir(cdf_directory_t *d, char *buf)
312 {
313 	size_t len = 0;
314 
315 	CDF_UNPACKA(d->d_name);
316 	CDF_UNPACK(d->d_namelen);
317 	CDF_UNPACK(d->d_type);
318 	CDF_UNPACK(d->d_color);
319 	CDF_UNPACK(d->d_left_child);
320 	CDF_UNPACK(d->d_right_child);
321 	CDF_UNPACK(d->d_storage);
322 	CDF_UNPACKA(d->d_storage_uuid);
323 	CDF_UNPACK(d->d_flags);
324 	CDF_UNPACK(d->d_created);
325 	CDF_UNPACK(d->d_modified);
326 	CDF_UNPACK(d->d_stream_first_sector);
327 	CDF_UNPACK(d->d_size);
328 	CDF_UNPACK(d->d_unused0);
329 }
330 
331 int
cdf_zero_stream(cdf_stream_t * scn)332 cdf_zero_stream(cdf_stream_t *scn)
333 {
334 	scn->sst_len = 0;
335 	scn->sst_dirlen = 0;
336 	scn->sst_ss = 0;
337 	free(scn->sst_tab);
338 	scn->sst_tab = NULL;
339 	return -1;
340 }
341 
342 static size_t
cdf_check_stream(const cdf_stream_t * sst,const cdf_header_t * h)343 cdf_check_stream(const cdf_stream_t *sst, const cdf_header_t *h)
344 {
345 	size_t ss = sst->sst_dirlen < h->h_min_size_standard_stream ?
346 	    CDF_SHORT_SEC_SIZE(h) : CDF_SEC_SIZE(h);
347 	assert(ss == sst->sst_ss);
348 	return sst->sst_ss;
349 }
350 
351 static int
cdf_check_stream_offset(const cdf_stream_t * sst,const cdf_header_t * h,const void * p,size_t tail,int line)352 cdf_check_stream_offset(const cdf_stream_t *sst, const cdf_header_t *h,
353     const void *p, size_t tail, int line)
354 {
355 	const char *b = RCAST(const char *, sst->sst_tab);
356 	const char *e = RCAST(const char *, p) + tail;
357 	size_t ss = cdf_check_stream(sst, h);
358 	/*LINTED*/(void)&line;
359 	if (e >= b && CAST(size_t, e - b) <= ss * sst->sst_len)
360 		return 0;
361 	DPRINTF(("%d: offset begin %p < end %p || %" SIZE_T_FORMAT "u"
362 	    " > %" SIZE_T_FORMAT "u [%" SIZE_T_FORMAT "u %"
363 	    SIZE_T_FORMAT "u]\n", line, b, e, (size_t)(e - b),
364 	    ss * sst->sst_len, ss, sst->sst_len));
365 	errno = EFTYPE;
366 	return -1;
367 }
368 
369 static ssize_t
cdf_read(const cdf_info_t * info,off_t off,void * buf,size_t len)370 cdf_read(const cdf_info_t *info, off_t off, void *buf, size_t len)
371 {
372 	size_t siz = CAST(size_t, off + len);
373 
374 	if (CAST(off_t, off + len) != CAST(off_t, siz))
375 		goto out;
376 
377 	if (info->i_buf != NULL && info->i_len >= siz) {
378 		(void)memcpy(buf, &info->i_buf[off], len);
379 		return CAST(ssize_t, len);
380 	}
381 
382 	if (info->i_fd == -1)
383 		goto out;
384 
385 	if (pread(info->i_fd, buf, len, off) != CAST(ssize_t, len))
386 		return -1;
387 
388 	return CAST(ssize_t, len);
389 out:
390 	errno = EINVAL;
391 	return -1;
392 }
393 
394 int
cdf_read_header(const cdf_info_t * info,cdf_header_t * h)395 cdf_read_header(const cdf_info_t *info, cdf_header_t *h)
396 {
397 	char buf[512];
398 
399 	(void)memcpy(cdf_bo.s, "\01\02\03\04", 4);
400 	if (cdf_read(info, CAST(off_t, 0), buf, sizeof(buf)) == -1)
401 		return -1;
402 	cdf_unpack_header(h, buf);
403 	cdf_swap_header(h);
404 	if (h->h_magic != CDF_MAGIC) {
405 		DPRINTF(("Bad magic %#" INT64_T_FORMAT "x != %#"
406 		    INT64_T_FORMAT "x\n",
407 		    (unsigned long long)h->h_magic,
408 		    (unsigned long long)CDF_MAGIC));
409 		goto out;
410 	}
411 	if (h->h_sec_size_p2 > 20) {
412 		DPRINTF(("Bad sector size %hu\n", h->h_sec_size_p2));
413 		goto out;
414 	}
415 	if (h->h_short_sec_size_p2 > 20) {
416 		DPRINTF(("Bad short sector size %hu\n",
417 		    h->h_short_sec_size_p2));
418 		goto out;
419 	}
420 	return 0;
421 out:
422 	errno = EFTYPE;
423 	return -1;
424 }
425 
426 
427 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)428 cdf_read_sector(const cdf_info_t *info, void *buf, size_t offs, size_t len,
429     const cdf_header_t *h, cdf_secid_t id)
430 {
431 	size_t ss = CDF_SEC_SIZE(h);
432 	size_t pos;
433 
434 	if (SIZE_T_MAX / ss < CAST(size_t, id))
435 		return -1;
436 
437 	pos = CDF_SEC_POS(h, id);
438 	assert(ss == len);
439 	return cdf_read(info, CAST(off_t, pos), RCAST(char *, buf) + offs, len);
440 }
441 
442 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)443 cdf_read_short_sector(const cdf_stream_t *sst, void *buf, size_t offs,
444     size_t len, const cdf_header_t *h, cdf_secid_t id)
445 {
446 	size_t ss = CDF_SHORT_SEC_SIZE(h);
447 	size_t pos;
448 
449 	if (SIZE_T_MAX / ss < CAST(size_t, id))
450 		return -1;
451 
452 	pos = CDF_SHORT_SEC_POS(h, id);
453 	assert(ss == len);
454 	if (pos + len > CDF_SEC_SIZE(h) * sst->sst_len) {
455 		DPRINTF(("Out of bounds read %" SIZE_T_FORMAT "u > %"
456 		    SIZE_T_FORMAT "u\n",
457 		    pos + len, CDF_SEC_SIZE(h) * sst->sst_len));
458 		goto out;
459 	}
460 	(void)memcpy(RCAST(char *, buf) + offs,
461 	    RCAST(const char *, sst->sst_tab) + pos, len);
462 	return len;
463 out:
464 	errno = EFTYPE;
465 	return -1;
466 }
467 
468 /*
469  * Read the sector allocation table.
470  */
471 int
cdf_read_sat(const cdf_info_t * info,cdf_header_t * h,cdf_sat_t * sat)472 cdf_read_sat(const cdf_info_t *info, cdf_header_t *h, cdf_sat_t *sat)
473 {
474 	size_t i, j, k;
475 	size_t ss = CDF_SEC_SIZE(h);
476 	cdf_secid_t *msa, mid, sec;
477 	size_t nsatpersec = (ss / sizeof(mid)) - 1;
478 
479 	for (i = 0; i < __arraycount(h->h_master_sat); i++)
480 		if (h->h_master_sat[i] == CDF_SECID_FREE)
481 			break;
482 
483 #define CDF_SEC_LIMIT (UINT32_MAX / (64 * ss))
484 	if ((nsatpersec > 0 &&
485 	    h->h_num_sectors_in_master_sat > CDF_SEC_LIMIT / nsatpersec) ||
486 	    i > CDF_SEC_LIMIT) {
487 		DPRINTF(("Number of sectors in master SAT too big %u %"
488 		    SIZE_T_FORMAT "u\n", h->h_num_sectors_in_master_sat, i));
489 		errno = EFTYPE;
490 		return -1;
491 	}
492 
493 	sat->sat_len = h->h_num_sectors_in_master_sat * nsatpersec + i;
494 	DPRINTF(("sat_len = %" SIZE_T_FORMAT "u ss = %" SIZE_T_FORMAT "u\n",
495 	    sat->sat_len, ss));
496 	if ((sat->sat_tab = CAST(cdf_secid_t *, CDF_CALLOC(sat->sat_len, ss)))
497 	    == NULL)
498 		return -1;
499 
500 	for (i = 0; i < __arraycount(h->h_master_sat); i++) {
501 		if (h->h_master_sat[i] < 0)
502 			break;
503 		if (cdf_read_sector(info, sat->sat_tab, ss * i, ss, h,
504 		    h->h_master_sat[i]) != CAST(ssize_t, ss)) {
505 			DPRINTF(("Reading sector %d", h->h_master_sat[i]));
506 			goto out1;
507 		}
508 	}
509 
510 	if ((msa = CAST(cdf_secid_t *, CDF_CALLOC(1, ss))) == NULL)
511 		goto out1;
512 
513 	mid = h->h_secid_first_sector_in_master_sat;
514 	for (j = 0; j < h->h_num_sectors_in_master_sat; j++) {
515 		if (mid < 0)
516 			goto out;
517 		if (j >= CDF_LOOP_LIMIT) {
518 			DPRINTF(("Reading master sector loop limit"));
519 			goto out3;
520 		}
521 		if (cdf_read_sector(info, msa, 0, ss, h, mid) !=
522 		    CAST(ssize_t, ss)) {
523 			DPRINTF(("Reading master sector %d", mid));
524 			goto out2;
525 		}
526 		for (k = 0; k < nsatpersec; k++, i++) {
527 			sec = CDF_TOLE4(CAST(uint32_t, msa[k]));
528 			if (sec < 0)
529 				goto out;
530 			if (i >= sat->sat_len) {
531 			    DPRINTF(("Out of bounds reading MSA %"
532 				SIZE_T_FORMAT "u >= %" SIZE_T_FORMAT "u",
533 				i, sat->sat_len));
534 			    goto out3;
535 			}
536 			if (cdf_read_sector(info, sat->sat_tab, ss * i, ss, h,
537 			    sec) != CAST(ssize_t, ss)) {
538 				DPRINTF(("Reading sector %d",
539 				    CDF_TOLE4(msa[k])));
540 				goto out2;
541 			}
542 		}
543 		mid = CDF_TOLE4(CAST(uint32_t, msa[nsatpersec]));
544 	}
545 out:
546 	sat->sat_len = i;
547 	free(msa);
548 	return 0;
549 out3:
550 	errno = EFTYPE;
551 out2:
552 	free(msa);
553 out1:
554 	free(sat->sat_tab);
555 	return -1;
556 }
557 
558 size_t
cdf_count_chain(const cdf_sat_t * sat,cdf_secid_t sid,size_t size)559 cdf_count_chain(const cdf_sat_t *sat, cdf_secid_t sid, size_t size)
560 {
561 	size_t i, j;
562 	cdf_secid_t maxsector = CAST(cdf_secid_t, (sat->sat_len * size)
563 	    / sizeof(maxsector));
564 
565 	DPRINTF(("Chain:"));
566 	if (sid == CDF_SECID_END_OF_CHAIN) {
567 		/* 0-length chain. */
568 		DPRINTF((" empty\n"));
569 		return 0;
570 	}
571 
572 	for (j = i = 0; sid >= 0; i++, j++) {
573 		DPRINTF((" %d", sid));
574 		if (j >= CDF_LOOP_LIMIT) {
575 			DPRINTF(("Counting chain loop limit"));
576 			goto out;
577 		}
578 		if (sid >= maxsector) {
579 			DPRINTF(("Sector %d >= %d\n", sid, maxsector));
580 			goto out;
581 		}
582 		sid = CDF_TOLE4(CAST(uint32_t, sat->sat_tab[sid]));
583 	}
584 	if (i == 0) {
585 		DPRINTF((" none, sid: %d\n", sid));
586 		goto out;
587 
588 	}
589 	DPRINTF(("\n"));
590 	return i;
591 out:
592 	errno = EFTYPE;
593 	return CAST(size_t, -1);
594 }
595 
596 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)597 cdf_read_long_sector_chain(const cdf_info_t *info, const cdf_header_t *h,
598     const cdf_sat_t *sat, cdf_secid_t sid, size_t len, cdf_stream_t *scn)
599 {
600 	size_t ss = CDF_SEC_SIZE(h), i, j;
601 	ssize_t nr;
602 	scn->sst_tab = NULL;
603 	scn->sst_len = cdf_count_chain(sat, sid, ss);
604 	scn->sst_dirlen = MAX(h->h_min_size_standard_stream, len);
605 	scn->sst_ss = ss;
606 
607 	if (sid == CDF_SECID_END_OF_CHAIN || len == 0)
608 		return cdf_zero_stream(scn);
609 
610 	if (scn->sst_len == CAST(size_t, -1))
611 		goto out;
612 
613 	scn->sst_tab = CDF_CALLOC(scn->sst_len, ss);
614 	if (scn->sst_tab == NULL)
615 		return cdf_zero_stream(scn);
616 
617 	for (j = i = 0; sid >= 0; i++, j++) {
618 		if (j >= CDF_LOOP_LIMIT) {
619 			DPRINTF(("Read long sector chain loop limit"));
620 			goto out;
621 		}
622 		if (i >= scn->sst_len) {
623 			DPRINTF(("Out of bounds reading long sector chain "
624 			    "%" SIZE_T_FORMAT "u > %" SIZE_T_FORMAT "u\n", i,
625 			    scn->sst_len));
626 			goto out;
627 		}
628 		if ((nr = cdf_read_sector(info, scn->sst_tab, i * ss, ss, h,
629 		    sid)) != CAST(ssize_t, ss)) {
630 			if (i == scn->sst_len - 1 && nr > 0) {
631 				/* Last sector might be truncated */
632 				return 0;
633 			}
634 			DPRINTF(("Reading long sector chain %d", sid));
635 			goto out;
636 		}
637 		sid = CDF_TOLE4(CAST(uint32_t, sat->sat_tab[sid]));
638 	}
639 	return 0;
640 out:
641 	errno = EFTYPE;
642 	return cdf_zero_stream(scn);
643 }
644 
645 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)646 cdf_read_short_sector_chain(const cdf_header_t *h,
647     const cdf_sat_t *ssat, const cdf_stream_t *sst,
648     cdf_secid_t sid, size_t len, cdf_stream_t *scn)
649 {
650 	size_t ss = CDF_SHORT_SEC_SIZE(h), i, j;
651 	scn->sst_tab = NULL;
652 	scn->sst_len = cdf_count_chain(ssat, sid, CDF_SEC_SIZE(h));
653 	scn->sst_dirlen = len;
654 	scn->sst_ss = ss;
655 
656 	if (scn->sst_len == CAST(size_t, -1))
657 		goto out;
658 
659 	scn->sst_tab = CDF_CALLOC(scn->sst_len, ss);
660 	if (scn->sst_tab == NULL)
661 		return cdf_zero_stream(scn);
662 
663 	for (j = i = 0; sid >= 0; i++, j++) {
664 		if (j >= CDF_LOOP_LIMIT) {
665 			DPRINTF(("Read short sector chain loop limit"));
666 			goto out;
667 		}
668 		if (i >= scn->sst_len) {
669 			DPRINTF(("Out of bounds reading short sector chain "
670 			    "%" SIZE_T_FORMAT "u > %" SIZE_T_FORMAT "u\n",
671 			    i, scn->sst_len));
672 			goto out;
673 		}
674 		if (cdf_read_short_sector(sst, scn->sst_tab, i * ss, ss, h,
675 		    sid) != CAST(ssize_t, ss)) {
676 			DPRINTF(("Reading short sector chain %d", sid));
677 			goto out;
678 		}
679 		sid = CDF_TOLE4(CAST(uint32_t, ssat->sat_tab[sid]));
680 	}
681 	return 0;
682 out:
683 	errno = EFTYPE;
684 	return cdf_zero_stream(scn);
685 }
686 
687 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)688 cdf_read_sector_chain(const cdf_info_t *info, const cdf_header_t *h,
689     const cdf_sat_t *sat, const cdf_sat_t *ssat, const cdf_stream_t *sst,
690     cdf_secid_t sid, size_t len, cdf_stream_t *scn)
691 {
692 
693 	if (len < h->h_min_size_standard_stream && sst->sst_tab != NULL)
694 		return cdf_read_short_sector_chain(h, ssat, sst, sid, len,
695 		    scn);
696 	else
697 		return cdf_read_long_sector_chain(info, h, sat, sid, len, scn);
698 }
699 
700 int
cdf_read_dir(const cdf_info_t * info,const cdf_header_t * h,const cdf_sat_t * sat,cdf_dir_t * dir)701 cdf_read_dir(const cdf_info_t *info, const cdf_header_t *h,
702     const cdf_sat_t *sat, cdf_dir_t *dir)
703 {
704 	size_t i, j;
705 	size_t ss = CDF_SEC_SIZE(h), ns, nd;
706 	char *buf;
707 	cdf_secid_t sid = h->h_secid_first_directory;
708 
709 	ns = cdf_count_chain(sat, sid, ss);
710 	if (ns == CAST(size_t, -1))
711 		return -1;
712 
713 	nd = ss / CDF_DIRECTORY_SIZE;
714 
715 	dir->dir_len = ns * nd;
716 	dir->dir_tab = CAST(cdf_directory_t *,
717 	    CDF_CALLOC(dir->dir_len, sizeof(dir->dir_tab[0])));
718 	if (dir->dir_tab == NULL)
719 		return -1;
720 
721 	if ((buf = CAST(char *, CDF_MALLOC(ss))) == NULL) {
722 		free(dir->dir_tab);
723 		return -1;
724 	}
725 
726 	for (j = i = 0; i < ns; i++, j++) {
727 		if (j >= CDF_LOOP_LIMIT) {
728 			DPRINTF(("Read dir loop limit"));
729 			goto out;
730 		}
731 		if (cdf_read_sector(info, buf, 0, ss, h, sid) !=
732 		    CAST(ssize_t, ss)) {
733 			DPRINTF(("Reading directory sector %d", sid));
734 			goto out;
735 		}
736 		for (j = 0; j < nd; j++) {
737 			cdf_unpack_dir(&dir->dir_tab[i * nd + j],
738 			    &buf[j * CDF_DIRECTORY_SIZE]);
739 		}
740 		sid = CDF_TOLE4(CAST(uint32_t, sat->sat_tab[sid]));
741 	}
742 	if (NEED_SWAP)
743 		for (i = 0; i < dir->dir_len; i++)
744 			cdf_swap_dir(&dir->dir_tab[i]);
745 	free(buf);
746 	return 0;
747 out:
748 	free(dir->dir_tab);
749 	free(buf);
750 	errno = EFTYPE;
751 	return -1;
752 }
753 
754 
755 int
cdf_read_ssat(const cdf_info_t * info,const cdf_header_t * h,const cdf_sat_t * sat,cdf_sat_t * ssat)756 cdf_read_ssat(const cdf_info_t *info, const cdf_header_t *h,
757     const cdf_sat_t *sat, cdf_sat_t *ssat)
758 {
759 	size_t i, j;
760 	size_t ss = CDF_SEC_SIZE(h);
761 	cdf_secid_t sid = h->h_secid_first_sector_in_short_sat;
762 
763 	ssat->sat_tab = NULL;
764 	ssat->sat_len = cdf_count_chain(sat, sid, ss);
765 	if (ssat->sat_len == CAST(size_t, -1))
766 		goto out;
767 
768 	ssat->sat_tab = CAST(cdf_secid_t *, CDF_CALLOC(ssat->sat_len, ss));
769 	if (ssat->sat_tab == NULL)
770 		goto out1;
771 
772 	for (j = i = 0; sid >= 0; i++, j++) {
773 		if (j >= CDF_LOOP_LIMIT) {
774 			DPRINTF(("Read short sat sector loop limit"));
775 			goto out;
776 		}
777 		if (i >= ssat->sat_len) {
778 			DPRINTF(("Out of bounds reading short sector chain "
779 			    "%" SIZE_T_FORMAT "u > %" SIZE_T_FORMAT "u\n", i,
780 			    ssat->sat_len));
781 			goto out;
782 		}
783 		if (cdf_read_sector(info, ssat->sat_tab, i * ss, ss, h, sid) !=
784 		    CAST(ssize_t, ss)) {
785 			DPRINTF(("Reading short sat sector %d", sid));
786 			goto out1;
787 		}
788 		sid = CDF_TOLE4(CAST(uint32_t, sat->sat_tab[sid]));
789 	}
790 	return 0;
791 out:
792 	errno = EFTYPE;
793 out1:
794 	free(ssat->sat_tab);
795 	return -1;
796 }
797 
798 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)799 cdf_read_short_stream(const cdf_info_t *info, const cdf_header_t *h,
800     const cdf_sat_t *sat, const cdf_dir_t *dir, cdf_stream_t *scn,
801     const cdf_directory_t **root)
802 {
803 	size_t i;
804 	const cdf_directory_t *d;
805 
806 	*root = NULL;
807 	for (i = 0; i < dir->dir_len; i++)
808 		if (dir->dir_tab[i].d_type == CDF_DIR_TYPE_ROOT_STORAGE)
809 			break;
810 
811 	/* If the it is not there, just fake it; some docs don't have it */
812 	if (i == dir->dir_len) {
813 		DPRINTF(("Cannot find root storage dir\n"));
814 		goto out;
815 	}
816 	d = &dir->dir_tab[i];
817 	*root = d;
818 
819 	/* If the it is not there, just fake it; some docs don't have it */
820 	if (d->d_stream_first_sector < 0) {
821 		DPRINTF(("No first secror in dir\n"));
822 		goto out;
823 	}
824 
825 	return cdf_read_long_sector_chain(info, h, sat,
826 	    d->d_stream_first_sector, d->d_size, scn);
827 out:
828 	scn->sst_tab = NULL;
829 	(void)cdf_zero_stream(scn);
830 	return 0;
831 }
832 
833 static int
cdf_namecmp(const char * d,const uint16_t * s,size_t l)834 cdf_namecmp(const char *d, const uint16_t *s, size_t l)
835 {
836 	for (; l--; d++, s++)
837 		if (*d != CDF_TOLE2(*s))
838 			return CAST(unsigned char, *d) - CDF_TOLE2(*s);
839 	return 0;
840 }
841 
842 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)843 cdf_read_doc_summary_info(const cdf_info_t *info, const cdf_header_t *h,
844     const cdf_sat_t *sat, const cdf_sat_t *ssat, const cdf_stream_t *sst,
845     const cdf_dir_t *dir, cdf_stream_t *scn)
846 {
847 	return cdf_read_user_stream(info, h, sat, ssat, sst, dir,
848 	    "\05DocumentSummaryInformation", scn);
849 }
850 
851 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)852 cdf_read_summary_info(const cdf_info_t *info, const cdf_header_t *h,
853     const cdf_sat_t *sat, const cdf_sat_t *ssat, const cdf_stream_t *sst,
854     const cdf_dir_t *dir, cdf_stream_t *scn)
855 {
856 	return cdf_read_user_stream(info, h, sat, ssat, sst, dir,
857 	    "\05SummaryInformation", scn);
858 }
859 
860 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)861 cdf_read_user_stream(const cdf_info_t *info, const cdf_header_t *h,
862     const cdf_sat_t *sat, const cdf_sat_t *ssat, const cdf_stream_t *sst,
863     const cdf_dir_t *dir, const char *name, cdf_stream_t *scn)
864 {
865 	const cdf_directory_t *d;
866 	int i = cdf_find_stream(dir, name, CDF_DIR_TYPE_USER_STREAM);
867 
868 	if (i <= 0) {
869 		memset(scn, 0, sizeof(*scn));
870 		return -1;
871 	}
872 
873 	d = &dir->dir_tab[i - 1];
874 	return cdf_read_sector_chain(info, h, sat, ssat, sst,
875 	    d->d_stream_first_sector, d->d_size, scn);
876 }
877 
878 int
cdf_find_stream(const cdf_dir_t * dir,const char * name,int type)879 cdf_find_stream(const cdf_dir_t *dir, const char *name, int type)
880 {
881 	size_t i, name_len = strlen(name) + 1;
882 
883 	for (i = dir->dir_len; i > 0; i--)
884 		if (dir->dir_tab[i - 1].d_type == type &&
885 		    cdf_namecmp(name, dir->dir_tab[i - 1].d_name, name_len)
886 		    == 0)
887 			break;
888 	if (i > 0)
889 		return CAST(int, i);
890 
891 	DPRINTF(("Cannot find type %d `%s'\n", type, name));
892 	errno = ESRCH;
893 	return 0;
894 }
895 
896 #define CDF_SHLEN_LIMIT (UINT32_MAX / 64)
897 #define CDF_PROP_LIMIT (UINT32_MAX / (64 * sizeof(cdf_property_info_t)))
898 
899 static const void *
cdf_offset(const void * p,size_t l)900 cdf_offset(const void *p, size_t l)
901 {
902 	return CAST(const void *, CAST(const uint8_t *, p) + l);
903 }
904 
905 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)906 cdf_get_property_info_pos(const cdf_stream_t *sst, const cdf_header_t *h,
907     const uint8_t *p, const uint8_t *e, size_t i)
908 {
909 	size_t tail = (i << 1) + 1;
910 	size_t ofs;
911 
912 	if (p >= e) {
913 		DPRINTF(("Past end %p < %p\n", e, p));
914 		return NULL;
915 	}
916 
917 	if (cdf_check_stream_offset(sst, h, p, (tail + 1) * sizeof(uint32_t),
918 	    __LINE__) == -1)
919 		return NULL;
920 
921 	ofs = CDF_GETUINT32(p, tail);
922 	if (ofs < 2 * sizeof(uint32_t)) {
923 		DPRINTF(("Offset too small %zu\n", ofs));
924 		return NULL;
925 	}
926 
927 	ofs -= 2 * sizeof(uint32_t);
928 	if (ofs > CAST(size_t, e - p)) {
929 		DPRINTF(("Offset too big %zu %td\n", ofs, e - p));
930 		return NULL;
931 	}
932 
933 	return CAST(const uint8_t *, cdf_offset(CAST(const void *, p), ofs));
934 }
935 
936 static cdf_property_info_t *
cdf_grow_info(cdf_property_info_t ** info,size_t * maxcount,size_t incr)937 cdf_grow_info(cdf_property_info_t **info, size_t *maxcount, size_t incr)
938 {
939 	cdf_property_info_t *inp;
940 	size_t newcount = *maxcount + incr;
941 
942 	if (newcount > CDF_PROP_LIMIT) {
943 		DPRINTF(("exceeded property limit %" SIZE_T_FORMAT "u > %"
944 		    SIZE_T_FORMAT "u\n", newcount, CDF_PROP_LIMIT));
945 		goto out;
946 	}
947 	inp = CAST(cdf_property_info_t *,
948 	    CDF_REALLOC(*info, newcount * sizeof(*inp)));
949 	if (inp == NULL)
950 		goto out;
951 
952 	*info = inp;
953 	*maxcount = newcount;
954 	return inp;
955 out:
956 	free(*info);
957 	*maxcount = 0;
958 	*info = NULL;
959 	return NULL;
960 }
961 
962 static int
cdf_copy_info(cdf_property_info_t * inp,const void * p,const void * e,size_t len)963 cdf_copy_info(cdf_property_info_t *inp, const void *p, const void *e,
964     size_t len)
965 {
966 	if (inp->pi_type & CDF_VECTOR)
967 		return 0;
968 
969 	if (CAST(size_t, CAST(const char *, e) - CAST(const char *, p)) < len)
970 		return 0;
971 
972 	(void)memcpy(&inp->pi_val, p, len);
973 
974 	switch (len) {
975 	case 2:
976 		inp->pi_u16 = CDF_TOLE2(inp->pi_u16);
977 		break;
978 	case 4:
979 		inp->pi_u32 = CDF_TOLE4(inp->pi_u32);
980 		break;
981 	case 8:
982 		inp->pi_u64 = CDF_TOLE8(inp->pi_u64);
983 		break;
984 	default:
985 		abort();
986 	}
987 	return 1;
988 }
989 
990 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)991 cdf_read_property_info(const cdf_stream_t *sst, const cdf_header_t *h,
992     uint32_t offs, cdf_property_info_t **info, size_t *count, size_t *maxcount)
993 {
994 	const cdf_section_header_t *shp;
995 	cdf_section_header_t sh;
996 	const uint8_t *p, *q, *e;
997 	size_t i, o4, nelements, j, slen, left;
998 	cdf_property_info_t *inp;
999 
1000 	if (offs > UINT32_MAX / 4) {
1001 		errno = EFTYPE;
1002 		goto out;
1003 	}
1004 	shp = CAST(const cdf_section_header_t *,
1005 	    cdf_offset(sst->sst_tab, offs));
1006 	if (cdf_check_stream_offset(sst, h, shp, sizeof(*shp), __LINE__) == -1)
1007 		goto out;
1008 	sh.sh_len = CDF_TOLE4(shp->sh_len);
1009 	if (sh.sh_len > CDF_SHLEN_LIMIT) {
1010 		errno = EFTYPE;
1011 		goto out;
1012 	}
1013 
1014 	if (cdf_check_stream_offset(sst, h, shp, sh.sh_len, __LINE__) == -1)
1015 		goto out;
1016 
1017 	sh.sh_properties = CDF_TOLE4(shp->sh_properties);
1018 	DPRINTF(("section len: %u properties %u\n", sh.sh_len,
1019 	    sh.sh_properties));
1020 	if (sh.sh_properties > CDF_PROP_LIMIT)
1021 		goto out;
1022 	inp = cdf_grow_info(info, maxcount, sh.sh_properties);
1023 	if (inp == NULL)
1024 		goto out;
1025 	inp += *count;
1026 	*count += sh.sh_properties;
1027 	p = CAST(const uint8_t *, cdf_offset(sst->sst_tab, offs + sizeof(sh)));
1028 	e = CAST(const uint8_t *, cdf_offset(shp, sh.sh_len));
1029 	if (p >= e || cdf_check_stream_offset(sst, h, e, 0, __LINE__) == -1)
1030 		goto out;
1031 
1032 	for (i = 0; i < sh.sh_properties; i++) {
1033 		if ((q = cdf_get_property_info_pos(sst, h, p, e, i)) == NULL)
1034 			goto out;
1035 		inp[i].pi_id = CDF_GETUINT32(p, i << 1);
1036 		left = CAST(size_t, e - q);
1037 		if (left < sizeof(uint32_t)) {
1038 			DPRINTF(("short info (no type)_\n"));
1039 			goto out;
1040 		}
1041 		inp[i].pi_type = CDF_GETUINT32(q, 0);
1042 		DPRINTF(("%" SIZE_T_FORMAT "u) id=%#x type=%#x offs=%#tx,%#x\n",
1043 		    i, inp[i].pi_id, inp[i].pi_type, q - p, offs));
1044 		if (inp[i].pi_type & CDF_VECTOR) {
1045 			if (left < sizeof(uint32_t) * 2) {
1046 				DPRINTF(("missing CDF_VECTOR length\n"));
1047 				goto out;
1048 			}
1049 			nelements = CDF_GETUINT32(q, 1);
1050 			if (nelements > CDF_ELEMENT_LIMIT || nelements == 0) {
1051 				DPRINTF(("CDF_VECTOR with nelements == %"
1052 				    SIZE_T_FORMAT "u\n", nelements));
1053 				goto out;
1054 			}
1055 			slen = 2;
1056 		} else {
1057 			nelements = 1;
1058 			slen = 1;
1059 		}
1060 		o4 = slen * sizeof(uint32_t);
1061 		if (inp[i].pi_type & (CDF_ARRAY|CDF_BYREF|CDF_RESERVED))
1062 			goto unknown;
1063 		switch (inp[i].pi_type & CDF_TYPEMASK) {
1064 		case CDF_NULL:
1065 		case CDF_EMPTY:
1066 			break;
1067 		case CDF_SIGNED16:
1068 			if (!cdf_copy_info(&inp[i], &q[o4], e, sizeof(int16_t)))
1069 				goto unknown;
1070 			break;
1071 		case CDF_SIGNED32:
1072 		case CDF_BOOL:
1073 		case CDF_UNSIGNED32:
1074 		case CDF_FLOAT:
1075 			if (!cdf_copy_info(&inp[i], &q[o4], e, sizeof(int32_t)))
1076 				goto unknown;
1077 			break;
1078 		case CDF_SIGNED64:
1079 		case CDF_UNSIGNED64:
1080 		case CDF_DOUBLE:
1081 		case CDF_FILETIME:
1082 			if (!cdf_copy_info(&inp[i], &q[o4], e, sizeof(int64_t)))
1083 				goto unknown;
1084 			break;
1085 		case CDF_LENGTH32_STRING:
1086 		case CDF_LENGTH32_WSTRING:
1087 			if (nelements > 1) {
1088 				size_t nelem = inp - *info;
1089 				inp = cdf_grow_info(info, maxcount, nelements);
1090 				if (inp == NULL)
1091 					goto out;
1092 				inp += nelem;
1093 			}
1094 			for (j = 0; j < nelements && i < sh.sh_properties;
1095 			    j++, i++)
1096 			{
1097 				uint32_t l;
1098 
1099 				if (o4 + sizeof(uint32_t) > left)
1100 					goto out;
1101 
1102 				l = CDF_GETUINT32(q, slen);
1103 				o4 += sizeof(uint32_t);
1104 				if (o4 + l > left)
1105 					goto out;
1106 
1107 				inp[i].pi_str.s_len = l;
1108 				inp[i].pi_str.s_buf = CAST(const char *,
1109 				    CAST(const void *, &q[o4]));
1110 
1111 				DPRINTF(("o=%" SIZE_T_FORMAT "u l=%d(%"
1112 				    SIZE_T_FORMAT "u), t=%" SIZE_T_FORMAT
1113 				    "u s=%.*s\n", o4, l,
1114 				    CDF_ROUND(l, sizeof(l)),
1115 				    left, (int)l, inp[i].pi_str.s_buf));
1116 
1117 				if (l & 1)
1118 					l++;
1119 
1120 				slen += l >> 1;
1121 				o4 = slen * sizeof(uint32_t);
1122 			}
1123 			i--;
1124 			break;
1125 		case CDF_CLIPBOARD:
1126 			if (inp[i].pi_type & CDF_VECTOR)
1127 				goto unknown;
1128 			break;
1129 		default:
1130 		unknown:
1131 			memset(&inp[i].pi_val, 0, sizeof(inp[i].pi_val));
1132 			DPRINTF(("Don't know how to deal with %#x\n",
1133 			    inp[i].pi_type));
1134 			break;
1135 		}
1136 	}
1137 	return 0;
1138 out:
1139 	free(*info);
1140 	*info = NULL;
1141 	*count = 0;
1142 	*maxcount = 0;
1143 	errno = EFTYPE;
1144 	return -1;
1145 }
1146 
1147 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)1148 cdf_unpack_summary_info(const cdf_stream_t *sst, const cdf_header_t *h,
1149     cdf_summary_info_header_t *ssi, cdf_property_info_t **info, size_t *count)
1150 {
1151 	size_t maxcount;
1152 	const cdf_summary_info_header_t *si =
1153 	    CAST(const cdf_summary_info_header_t *, sst->sst_tab);
1154 	const cdf_section_declaration_t *sd =
1155 	    CAST(const cdf_section_declaration_t *, RCAST(const void *,
1156 	    RCAST(const char *, sst->sst_tab)
1157 	    + CDF_SECTION_DECLARATION_OFFSET));
1158 
1159 	if (cdf_check_stream_offset(sst, h, si, sizeof(*si), __LINE__) == -1 ||
1160 	    cdf_check_stream_offset(sst, h, sd, sizeof(*sd), __LINE__) == -1)
1161 		return -1;
1162 	ssi->si_byte_order = CDF_TOLE2(si->si_byte_order);
1163 	ssi->si_os_version = CDF_TOLE2(si->si_os_version);
1164 	ssi->si_os = CDF_TOLE2(si->si_os);
1165 	ssi->si_class = si->si_class;
1166 	cdf_swap_class(&ssi->si_class);
1167 	ssi->si_count = CDF_TOLE4(si->si_count);
1168 	*count = 0;
1169 	maxcount = 0;
1170 	*info = NULL;
1171 	if (cdf_read_property_info(sst, h, CDF_TOLE4(sd->sd_offset), info,
1172 	    count, &maxcount) == -1)
1173 		return -1;
1174 	return 0;
1175 }
1176 
1177 
1178 #define extract_catalog_field(t, f, l) \
1179     if (b + l + sizeof(cep->f) > eb) { \
1180 	    cep->ce_namlen = 0; \
1181 	    break; \
1182     } \
1183     memcpy(&cep->f, b + (l), sizeof(cep->f)); \
1184     ce[i].f = CAST(t, CDF_TOLE(cep->f))
1185 
1186 int
cdf_unpack_catalog(const cdf_header_t * h,const cdf_stream_t * sst,cdf_catalog_t ** cat)1187 cdf_unpack_catalog(const cdf_header_t *h, const cdf_stream_t *sst,
1188     cdf_catalog_t **cat)
1189 {
1190 	size_t ss = cdf_check_stream(sst, h);
1191 	const char *b = CAST(const char *, sst->sst_tab);
1192 	const char *nb, *eb = b + ss * sst->sst_len;
1193 	size_t nr, i, j, k;
1194 	cdf_catalog_entry_t *ce;
1195 	uint16_t reclen;
1196 	const uint16_t *np;
1197 
1198 	for (nr = 0;; nr++) {
1199 		memcpy(&reclen, b, sizeof(reclen));
1200 		reclen = CDF_TOLE2(reclen);
1201 		if (reclen == 0)
1202 			break;
1203 		b += reclen;
1204 		if (b > eb)
1205 		    break;
1206 	}
1207 	if (nr == 0)
1208 		return -1;
1209 	nr--;
1210 	*cat = CAST(cdf_catalog_t *,
1211 	    CDF_MALLOC(sizeof(cdf_catalog_t) + nr * sizeof(*ce)));
1212 	if (*cat == NULL)
1213 		return -1;
1214 	ce = (*cat)->cat_e;
1215 	memset(ce, 0, nr * sizeof(*ce));
1216 	b = CAST(const char *, sst->sst_tab);
1217 	for (j = i = 0; i < nr; b += reclen) {
1218 		cdf_catalog_entry_t *cep = &ce[j];
1219 		uint16_t rlen;
1220 
1221 		extract_catalog_field(uint16_t, ce_namlen, 0);
1222 		extract_catalog_field(uint16_t, ce_num, 4);
1223 		extract_catalog_field(uint64_t, ce_timestamp, 8);
1224 		reclen = cep->ce_namlen;
1225 
1226 		if (reclen < 14) {
1227 			cep->ce_namlen = 0;
1228 			continue;
1229 		}
1230 
1231 		cep->ce_namlen = __arraycount(cep->ce_name) - 1;
1232 		rlen = reclen - 14;
1233 		if (cep->ce_namlen > rlen)
1234 			cep->ce_namlen = rlen;
1235 
1236 		np = CAST(const uint16_t *, CAST(const void *, (b + 16)));
1237 		nb = CAST(const char *, CAST(const void *,
1238 		    (np + cep->ce_namlen)));
1239 		if (nb > eb) {
1240 			cep->ce_namlen = 0;
1241 			break;
1242 		}
1243 
1244 		for (k = 0; k < cep->ce_namlen; k++)
1245 			cep->ce_name[k] = np[k]; /* XXX: CDF_TOLE2? */
1246 		cep->ce_name[cep->ce_namlen] = 0;
1247 		j = i;
1248 		i++;
1249 	}
1250 	(*cat)->cat_num = j;
1251 	return 0;
1252 }
1253 
1254 int
cdf_print_classid(char * buf,size_t buflen,const cdf_classid_t * id)1255 cdf_print_classid(char *buf, size_t buflen, const cdf_classid_t *id)
1256 {
1257 	return snprintf(buf, buflen, "%.8x-%.4x-%.4x-%.2x%.2x-"
1258 	    "%.2x%.2x%.2x%.2x%.2x%.2x", id->cl_dword, id->cl_word[0],
1259 	    id->cl_word[1], id->cl_two[0], id->cl_two[1], id->cl_six[0],
1260 	    id->cl_six[1], id->cl_six[2], id->cl_six[3], id->cl_six[4],
1261 	    id->cl_six[5]);
1262 }
1263 
1264 static const struct {
1265 	uint32_t v;
1266 	const char *n;
1267 } vn[] = {
1268 	{ CDF_PROPERTY_CODE_PAGE, "Code page" },
1269 	{ CDF_PROPERTY_TITLE, "Title" },
1270 	{ CDF_PROPERTY_SUBJECT, "Subject" },
1271 	{ CDF_PROPERTY_AUTHOR, "Author" },
1272 	{ CDF_PROPERTY_KEYWORDS, "Keywords" },
1273 	{ CDF_PROPERTY_COMMENTS, "Comments" },
1274 	{ CDF_PROPERTY_TEMPLATE, "Template" },
1275 	{ CDF_PROPERTY_LAST_SAVED_BY, "Last Saved By" },
1276 	{ CDF_PROPERTY_REVISION_NUMBER, "Revision Number" },
1277 	{ CDF_PROPERTY_TOTAL_EDITING_TIME, "Total Editing Time" },
1278 	{ CDF_PROPERTY_LAST_PRINTED, "Last Printed" },
1279 	{ CDF_PROPERTY_CREATE_TIME, "Create Time/Date" },
1280 	{ CDF_PROPERTY_LAST_SAVED_TIME, "Last Saved Time/Date" },
1281 	{ CDF_PROPERTY_NUMBER_OF_PAGES, "Number of Pages" },
1282 	{ CDF_PROPERTY_NUMBER_OF_WORDS, "Number of Words" },
1283 	{ CDF_PROPERTY_NUMBER_OF_CHARACTERS, "Number of Characters" },
1284 	{ CDF_PROPERTY_THUMBNAIL, "Thumbnail" },
1285 	{ CDF_PROPERTY_NAME_OF_APPLICATION, "Name of Creating Application" },
1286 	{ CDF_PROPERTY_SECURITY, "Security" },
1287 	{ CDF_PROPERTY_LOCALE_ID, "Locale ID" },
1288 };
1289 
1290 int
cdf_print_property_name(char * buf,size_t bufsiz,uint32_t p)1291 cdf_print_property_name(char *buf, size_t bufsiz, uint32_t p)
1292 {
1293 	size_t i;
1294 
1295 	for (i = 0; i < __arraycount(vn); i++)
1296 		if (vn[i].v == p)
1297 			return snprintf(buf, bufsiz, "%s", vn[i].n);
1298 	return snprintf(buf, bufsiz, "%#x", p);
1299 }
1300 
1301 int
cdf_print_elapsed_time(char * buf,size_t bufsiz,cdf_timestamp_t ts)1302 cdf_print_elapsed_time(char *buf, size_t bufsiz, cdf_timestamp_t ts)
1303 {
1304 	int len = 0;
1305 	int days, hours, mins, secs;
1306 
1307 	ts /= CDF_TIME_PREC;
1308 	secs = CAST(int, ts % 60);
1309 	ts /= 60;
1310 	mins = CAST(int, ts % 60);
1311 	ts /= 60;
1312 	hours = CAST(int, ts % 24);
1313 	ts /= 24;
1314 	days = CAST(int, ts);
1315 
1316 	if (days) {
1317 		len += snprintf(buf + len, bufsiz - len, "%dd+", days);
1318 		if (CAST(size_t, len) >= bufsiz)
1319 			return len;
1320 	}
1321 
1322 	if (days || hours) {
1323 		len += snprintf(buf + len, bufsiz - len, "%.2d:", hours);
1324 		if (CAST(size_t, len) >= bufsiz)
1325 			return len;
1326 	}
1327 
1328 	len += snprintf(buf + len, bufsiz - len, "%.2d:", mins);
1329 	if (CAST(size_t, len) >= bufsiz)
1330 		return len;
1331 
1332 	len += snprintf(buf + len, bufsiz - len, "%.2d", secs);
1333 	return len;
1334 }
1335 
1336 char *
cdf_u16tos8(char * buf,size_t len,const uint16_t * p)1337 cdf_u16tos8(char *buf, size_t len, const uint16_t *p)
1338 {
1339 	size_t i;
1340 	for (i = 0; i < len && p[i]; i++)
1341 		buf[i] = CAST(char, p[i]);
1342 	buf[i] = '\0';
1343 	return buf;
1344 }
1345 
1346 #ifdef CDF_DEBUG
1347 void
cdf_dump_header(const cdf_header_t * h)1348 cdf_dump_header(const cdf_header_t *h)
1349 {
1350 	size_t i;
1351 
1352 #define DUMP(a, b) (void)fprintf(stderr, "%40.40s = " a "\n", # b, h->h_ ## b)
1353 #define DUMP2(a, b) (void)fprintf(stderr, "%40.40s = " a " (" a ")\n", # b, \
1354     h->h_ ## b, 1 << h->h_ ## b)
1355 	DUMP("%d", revision);
1356 	DUMP("%d", version);
1357 	DUMP("%#x", byte_order);
1358 	DUMP2("%d", sec_size_p2);
1359 	DUMP2("%d", short_sec_size_p2);
1360 	DUMP("%d", num_sectors_in_sat);
1361 	DUMP("%d", secid_first_directory);
1362 	DUMP("%d", min_size_standard_stream);
1363 	DUMP("%d", secid_first_sector_in_short_sat);
1364 	DUMP("%d", num_sectors_in_short_sat);
1365 	DUMP("%d", secid_first_sector_in_master_sat);
1366 	DUMP("%d", num_sectors_in_master_sat);
1367 	for (i = 0; i < __arraycount(h->h_master_sat); i++) {
1368 		if (h->h_master_sat[i] == CDF_SECID_FREE)
1369 			break;
1370 		(void)fprintf(stderr, "%35.35s[%.3" SIZE_T_FORMAT "u] = %d\n",
1371 		    "master_sat", i, h->h_master_sat[i]);
1372 	}
1373 }
1374 
1375 void
cdf_dump_sat(const char * prefix,const cdf_sat_t * sat,size_t size)1376 cdf_dump_sat(const char *prefix, const cdf_sat_t *sat, size_t size)
1377 {
1378 	size_t i, j, s = size / sizeof(cdf_secid_t);
1379 
1380 	for (i = 0; i < sat->sat_len; i++) {
1381 		(void)fprintf(stderr, "%s[%" SIZE_T_FORMAT "u]:\n%.6"
1382 		    SIZE_T_FORMAT "u: ", prefix, i, i * s);
1383 		for (j = 0; j < s; j++) {
1384 			(void)fprintf(stderr, "%5d, ",
1385 			    CDF_TOLE4(sat->sat_tab[s * i + j]));
1386 			if ((j + 1) % 10 == 0)
1387 				(void)fprintf(stderr, "\n%.6" SIZE_T_FORMAT
1388 				    "u: ", i * s + j + 1);
1389 		}
1390 		(void)fprintf(stderr, "\n");
1391 	}
1392 }
1393 
1394 void
cdf_dump(const void * v,size_t len)1395 cdf_dump(const void *v, size_t len)
1396 {
1397 	size_t i, j;
1398 	const unsigned char *p = v;
1399 	char abuf[16];
1400 
1401 	(void)fprintf(stderr, "%.4x: ", 0);
1402 	for (i = 0, j = 0; i < len; i++, p++) {
1403 		(void)fprintf(stderr, "%.2x ", *p);
1404 		abuf[j++] = isprint(*p) ? *p : '.';
1405 		if (j == 16) {
1406 			j = 0;
1407 			abuf[15] = '\0';
1408 			(void)fprintf(stderr, "%s\n%.4" SIZE_T_FORMAT "x: ",
1409 			    abuf, i + 1);
1410 		}
1411 	}
1412 	(void)fprintf(stderr, "\n");
1413 }
1414 
1415 void
cdf_dump_stream(const cdf_stream_t * sst)1416 cdf_dump_stream(const cdf_stream_t *sst)
1417 {
1418 	size_t ss = sst->sst_ss;
1419 	cdf_dump(sst->sst_tab, ss * sst->sst_len);
1420 }
1421 
1422 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)1423 cdf_dump_dir(const cdf_info_t *info, const cdf_header_t *h,
1424     const cdf_sat_t *sat, const cdf_sat_t *ssat, const cdf_stream_t *sst,
1425     const cdf_dir_t *dir)
1426 {
1427 	size_t i, j;
1428 	cdf_directory_t *d;
1429 	char name[__arraycount(d->d_name)];
1430 	cdf_stream_t scn;
1431 	struct timespec ts;
1432 
1433 	static const char *types[] = { "empty", "user storage",
1434 	    "user stream", "lockbytes", "property", "root storage" };
1435 
1436 	for (i = 0; i < dir->dir_len; i++) {
1437 		char buf[26];
1438 		d = &dir->dir_tab[i];
1439 		for (j = 0; j < sizeof(name); j++)
1440 			name[j] = (char)CDF_TOLE2(d->d_name[j]);
1441 		(void)fprintf(stderr, "Directory %" SIZE_T_FORMAT "u: %s\n",
1442 		    i, name);
1443 		if (d->d_type < __arraycount(types))
1444 			(void)fprintf(stderr, "Type: %s\n", types[d->d_type]);
1445 		else
1446 			(void)fprintf(stderr, "Type: %d\n", d->d_type);
1447 		(void)fprintf(stderr, "Color: %s\n",
1448 		    d->d_color ? "black" : "red");
1449 		(void)fprintf(stderr, "Left child: %d\n", d->d_left_child);
1450 		(void)fprintf(stderr, "Right child: %d\n", d->d_right_child);
1451 		(void)fprintf(stderr, "Flags: %#x\n", d->d_flags);
1452 		cdf_timestamp_to_timespec(&ts, d->d_created);
1453 		(void)fprintf(stderr, "Created %s", cdf_ctime(&ts.tv_sec, buf));
1454 		cdf_timestamp_to_timespec(&ts, d->d_modified);
1455 		(void)fprintf(stderr, "Modified %s",
1456 		    cdf_ctime(&ts.tv_sec, buf));
1457 		(void)fprintf(stderr, "Stream %d\n", d->d_stream_first_sector);
1458 		(void)fprintf(stderr, "Size %d\n", d->d_size);
1459 		switch (d->d_type) {
1460 		case CDF_DIR_TYPE_USER_STORAGE:
1461 			(void)fprintf(stderr, "Storage: %d\n", d->d_storage);
1462 			break;
1463 		case CDF_DIR_TYPE_USER_STREAM:
1464 			if (sst == NULL)
1465 				break;
1466 			if (cdf_read_sector_chain(info, h, sat, ssat, sst,
1467 			    d->d_stream_first_sector, d->d_size, &scn) == -1) {
1468 				warn("Can't read stream for %s at %d len %d",
1469 				    name, d->d_stream_first_sector, d->d_size);
1470 				break;
1471 			}
1472 			cdf_dump_stream(&scn);
1473 			free(scn.sst_tab);
1474 			break;
1475 		default:
1476 			break;
1477 		}
1478 
1479 	}
1480 }
1481 
1482 void
cdf_dump_property_info(const cdf_property_info_t * info,size_t count)1483 cdf_dump_property_info(const cdf_property_info_t *info, size_t count)
1484 {
1485 	cdf_timestamp_t tp;
1486 	struct timespec ts;
1487 	char buf[64];
1488 	size_t i, j;
1489 
1490 	for (i = 0; i < count; i++) {
1491 		cdf_print_property_name(buf, sizeof(buf), info[i].pi_id);
1492 		(void)fprintf(stderr, "%" SIZE_T_FORMAT "u) %s: ", i, buf);
1493 		switch (info[i].pi_type) {
1494 		case CDF_NULL:
1495 			break;
1496 		case CDF_SIGNED16:
1497 			(void)fprintf(stderr, "signed 16 [%hd]\n",
1498 			    info[i].pi_s16);
1499 			break;
1500 		case CDF_SIGNED32:
1501 			(void)fprintf(stderr, "signed 32 [%d]\n",
1502 			    info[i].pi_s32);
1503 			break;
1504 		case CDF_UNSIGNED32:
1505 			(void)fprintf(stderr, "unsigned 32 [%u]\n",
1506 			    info[i].pi_u32);
1507 			break;
1508 		case CDF_FLOAT:
1509 			(void)fprintf(stderr, "float [%g]\n",
1510 			    info[i].pi_f);
1511 			break;
1512 		case CDF_DOUBLE:
1513 			(void)fprintf(stderr, "double [%g]\n",
1514 			    info[i].pi_d);
1515 			break;
1516 		case CDF_LENGTH32_STRING:
1517 			(void)fprintf(stderr, "string %u [%.*s]\n",
1518 			    info[i].pi_str.s_len,
1519 			    info[i].pi_str.s_len, info[i].pi_str.s_buf);
1520 			break;
1521 		case CDF_LENGTH32_WSTRING:
1522 			(void)fprintf(stderr, "string %u [",
1523 			    info[i].pi_str.s_len);
1524 			for (j = 0; j < info[i].pi_str.s_len - 1; j++)
1525 			    (void)fputc(info[i].pi_str.s_buf[j << 1], stderr);
1526 			(void)fprintf(stderr, "]\n");
1527 			break;
1528 		case CDF_FILETIME:
1529 			tp = info[i].pi_tp;
1530 			if (tp < 1000000000000000LL) {
1531 				cdf_print_elapsed_time(buf, sizeof(buf), tp);
1532 				(void)fprintf(stderr, "timestamp %s\n", buf);
1533 			} else {
1534 				char tbuf[26];
1535 				cdf_timestamp_to_timespec(&ts, tp);
1536 				(void)fprintf(stderr, "timestamp %s",
1537 				    cdf_ctime(&ts.tv_sec, tbuf));
1538 			}
1539 			break;
1540 		case CDF_CLIPBOARD:
1541 			(void)fprintf(stderr, "CLIPBOARD %u\n", info[i].pi_u32);
1542 			break;
1543 		default:
1544 			DPRINTF(("Don't know how to deal with %#x\n",
1545 			    info[i].pi_type));
1546 			break;
1547 		}
1548 	}
1549 }
1550 
1551 
1552 void
cdf_dump_summary_info(const cdf_header_t * h,const cdf_stream_t * sst)1553 cdf_dump_summary_info(const cdf_header_t *h, const cdf_stream_t *sst)
1554 {
1555 	char buf[128];
1556 	cdf_summary_info_header_t ssi;
1557 	cdf_property_info_t *info;
1558 	size_t count;
1559 
1560 	(void)&h;
1561 	if (cdf_unpack_summary_info(sst, h, &ssi, &info, &count) == -1)
1562 		return;
1563 	(void)fprintf(stderr, "Endian: %#x\n", ssi.si_byte_order);
1564 	(void)fprintf(stderr, "Os Version %d.%d\n", ssi.si_os_version & 0xff,
1565 	    ssi.si_os_version >> 8);
1566 	(void)fprintf(stderr, "Os %d\n", ssi.si_os);
1567 	cdf_print_classid(buf, sizeof(buf), &ssi.si_class);
1568 	(void)fprintf(stderr, "Class %s\n", buf);
1569 	(void)fprintf(stderr, "Count %d\n", ssi.si_count);
1570 	cdf_dump_property_info(info, count);
1571 	free(info);
1572 }
1573 
1574 
1575 void
cdf_dump_catalog(const cdf_header_t * h,const cdf_stream_t * sst)1576 cdf_dump_catalog(const cdf_header_t *h, const cdf_stream_t *sst)
1577 {
1578 	cdf_catalog_t *cat;
1579 	cdf_unpack_catalog(h, sst, &cat);
1580 	const cdf_catalog_entry_t *ce = cat->cat_e;
1581 	struct timespec ts;
1582 	char tbuf[64], sbuf[256];
1583 	size_t i;
1584 
1585 	printf("Catalog:\n");
1586 	for (i = 0; i < cat->cat_num; i++) {
1587 		cdf_timestamp_to_timespec(&ts, ce[i].ce_timestamp);
1588 		printf("\t%d %s %s", ce[i].ce_num,
1589 		    cdf_u16tos8(sbuf, ce[i].ce_namlen, ce[i].ce_name),
1590 		    cdf_ctime(&ts.tv_sec, tbuf));
1591 	}
1592 	free(cat);
1593 }
1594 
1595 #endif
1596 
1597 #ifdef TEST
1598 int
main(int argc,char * argv[])1599 main(int argc, char *argv[])
1600 {
1601 	int i;
1602 	cdf_header_t h;
1603 	cdf_sat_t sat, ssat;
1604 	cdf_stream_t sst, scn;
1605 	cdf_dir_t dir;
1606 	cdf_info_t info;
1607 	const cdf_directory_t *root;
1608 #ifdef __linux__
1609 #define getprogname() __progname
1610 	extern char *__progname;
1611 #endif
1612 	if (argc < 2) {
1613 		(void)fprintf(stderr, "Usage: %s <filename>\n", getprogname());
1614 		return -1;
1615 	}
1616 
1617 	info.i_buf = NULL;
1618 	info.i_len = 0;
1619 	for (i = 1; i < argc; i++) {
1620 		if ((info.i_fd = open(argv[1], O_RDONLY)) == -1)
1621 			err(EXIT_FAILURE, "Cannot open `%s'", argv[1]);
1622 
1623 		if (cdf_read_header(&info, &h) == -1)
1624 			err(EXIT_FAILURE, "Cannot read header");
1625 #ifdef CDF_DEBUG
1626 		cdf_dump_header(&h);
1627 #endif
1628 
1629 		if (cdf_read_sat(&info, &h, &sat) == -1)
1630 			err(EXIT_FAILURE, "Cannot read sat");
1631 #ifdef CDF_DEBUG
1632 		cdf_dump_sat("SAT", &sat, CDF_SEC_SIZE(&h));
1633 #endif
1634 
1635 		if (cdf_read_ssat(&info, &h, &sat, &ssat) == -1)
1636 			err(EXIT_FAILURE, "Cannot read ssat");
1637 #ifdef CDF_DEBUG
1638 		cdf_dump_sat("SSAT", &ssat, CDF_SHORT_SEC_SIZE(&h));
1639 #endif
1640 
1641 		if (cdf_read_dir(&info, &h, &sat, &dir) == -1)
1642 			err(EXIT_FAILURE, "Cannot read dir");
1643 
1644 		if (cdf_read_short_stream(&info, &h, &sat, &dir, &sst, &root)
1645 		    == -1)
1646 			err(EXIT_FAILURE, "Cannot read short stream");
1647 #ifdef CDF_DEBUG
1648 		cdf_dump_stream(&sst);
1649 #endif
1650 
1651 #ifdef CDF_DEBUG
1652 		cdf_dump_dir(&info, &h, &sat, &ssat, &sst, &dir);
1653 #endif
1654 
1655 
1656 		if (cdf_read_summary_info(&info, &h, &sat, &ssat, &sst, &dir,
1657 		    &scn) == -1)
1658 			warn("Cannot read summary info");
1659 #ifdef CDF_DEBUG
1660 		else
1661 			cdf_dump_summary_info(&h, &scn);
1662 #endif
1663 		if (cdf_read_user_stream(&info, &h, &sat, &ssat, &sst,
1664 		    &dir, "Catalog", &scn) == -1)
1665 			warn("Cannot read catalog");
1666 #ifdef CDF_DEBUG
1667 		else
1668 			cdf_dump_catalog(&h, &scn);
1669 #endif
1670 
1671 		(void)close(info.i_fd);
1672 	}
1673 
1674 	return 0;
1675 }
1676 #endif
1677