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vendor/file: upgrade from 5.32 to 5.38
[dragonfly.git] / contrib / file / src / cdf.c
blobbb81d6374194ea2f3700406ee7d0abaa45edd69e
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 1.116 2019/08/26 14:31:39 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
52 #ifndef EFTYPE
53 #define EFTYPE EINVAL
54 #endif
55
56 #ifndef SIZE_T_MAX
57 #define SIZE_T_MAX CAST(size_t, ~0ULL)
58 #endif
59
60 #include "cdf.h"
61
62 #ifdef CDF_DEBUG
63 #define DPRINTF(a) printf a, fflush(stdout)
64 #else
65 #define DPRINTF(a)
66 #endif
67
68 static union {
69 char s[4];
70 uint32_t u;
71 } cdf_bo;
72
73 #define NEED_SWAP (cdf_bo.u == CAST(uint32_t, 0x01020304))
74
75 #define CDF_TOLE8(x) \
76 (CAST(uint64_t, NEED_SWAP ? _cdf_tole8(x) : CAST(uint64_t, x)))
77 #define CDF_TOLE4(x) \
78 (CAST(uint32_t, NEED_SWAP ? _cdf_tole4(x) : CAST(uint32_t, x)))
79 #define CDF_TOLE2(x) \
80 (CAST(uint16_t, NEED_SWAP ? _cdf_tole2(x) : CAST(uint16_t, x)))
81 #define CDF_TOLE(x) (/*CONSTCOND*/sizeof(x) == 2 ? \
82 CDF_TOLE2(CAST(uint16_t, x)) : \
83 (/*CONSTCOND*/sizeof(x) == 4 ? \
84 CDF_TOLE4(CAST(uint32_t, x)) : \
85 CDF_TOLE8(CAST(uint64_t, x))))
86 #define CDF_GETUINT32(x, y) cdf_getuint32(x, y)
87
88 #define CDF_MALLOC(n) cdf_malloc(__FILE__, __LINE__, (n))
89 #define CDF_REALLOC(p, n) cdf_realloc(__FILE__, __LINE__, (p), (n))
90 #define CDF_CALLOC(n, u) cdf_calloc(__FILE__, __LINE__, (n), (u))
91
92
93 /*ARGSUSED*/
94 static void *
95 cdf_malloc(const char *file __attribute__((__unused__)),
96 size_t line __attribute__((__unused__)), size_t n)
97 {
98 DPRINTF(("%s,%" SIZE_T_FORMAT "u: %s %" SIZE_T_FORMAT "u\n",
99 file, line, __func__, n));
100 return malloc(n);
101 }
102
103 /*ARGSUSED*/
104 static void *
105 cdf_realloc(const char *file __attribute__((__unused__)),
106 size_t line __attribute__((__unused__)), void *p, size_t n)
107 {
108 DPRINTF(("%s,%" SIZE_T_FORMAT "u: %s %" SIZE_T_FORMAT "u\n",
109 file, line, __func__, n));
110 return realloc(p, n);
111 }
112
113 /*ARGSUSED*/
114 static void *
115 cdf_calloc(const char *file __attribute__((__unused__)),
116 size_t line __attribute__((__unused__)), size_t n, size_t u)
117 {
118 DPRINTF(("%s,%" SIZE_T_FORMAT "u: %s %" SIZE_T_FORMAT "u %"
119 SIZE_T_FORMAT "u\n", file, line, __func__, n, u));
120 return calloc(n, u);
121 }
122
123 /*
124 * swap a short
125 */
126 static uint16_t
127 _cdf_tole2(uint16_t sv)
128 {
129 uint16_t rv;
130 uint8_t *s = RCAST(uint8_t *, RCAST(void *, &sv));
131 uint8_t *d = RCAST(uint8_t *, RCAST(void *, &rv));
132 d[0] = s[1];
133 d[1] = s[0];
134 return rv;
135 }
136
137 /*
138 * swap an int
139 */
140 static uint32_t
141 _cdf_tole4(uint32_t sv)
142 {
143 uint32_t rv;
144 uint8_t *s = RCAST(uint8_t *, RCAST(void *, &sv));
145 uint8_t *d = RCAST(uint8_t *, RCAST(void *, &rv));
146 d[0] = s[3];
147 d[1] = s[2];
148 d[2] = s[1];
149 d[3] = s[0];
150 return rv;
151 }
152
153 /*
154 * swap a quad
155 */
156 static uint64_t
157 _cdf_tole8(uint64_t sv)
158 {
159 uint64_t rv;
160 uint8_t *s = RCAST(uint8_t *, RCAST(void *, &sv));
161 uint8_t *d = RCAST(uint8_t *, RCAST(void *, &rv));
162 d[0] = s[7];
163 d[1] = s[6];
164 d[2] = s[5];
165 d[3] = s[4];
166 d[4] = s[3];
167 d[5] = s[2];
168 d[6] = s[1];
169 d[7] = s[0];
170 return rv;
171 }
172
173 /*
174 * grab a uint32_t from a possibly unaligned address, and return it in
175 * the native host order.
176 */
177 static uint32_t
178 cdf_getuint32(const uint8_t *p, size_t offs)
179 {
180 uint32_t rv;
181 (void)memcpy(&rv, p + offs * sizeof(uint32_t), sizeof(rv));
182 return CDF_TOLE4(rv);
183 }
184
185 #define CDF_UNPACK(a) \
186 (void)memcpy(&(a), &buf[len], sizeof(a)), len += sizeof(a)
187 #define CDF_UNPACKA(a) \
188 (void)memcpy((a), &buf[len], sizeof(a)), len += sizeof(a)
189
190 uint16_t
191 cdf_tole2(uint16_t sv)
192 {
193 return CDF_TOLE2(sv);
194 }
195
196 uint32_t
197 cdf_tole4(uint32_t sv)
198 {
199 return CDF_TOLE4(sv);
200 }
201
202 uint64_t
203 cdf_tole8(uint64_t sv)
204 {
205 return CDF_TOLE8(sv);
206 }
207
208 void
209 cdf_swap_header(cdf_header_t *h)
210 {
211 size_t i;
212
213 h->h_magic = CDF_TOLE8(h->h_magic);
214 h->h_uuid[0] = CDF_TOLE8(h->h_uuid[0]);
215 h->h_uuid[1] = CDF_TOLE8(h->h_uuid[1]);
216 h->h_revision = CDF_TOLE2(h->h_revision);
217 h->h_version = CDF_TOLE2(h->h_version);
218 h->h_byte_order = CDF_TOLE2(h->h_byte_order);
219 h->h_sec_size_p2 = CDF_TOLE2(h->h_sec_size_p2);
220 h->h_short_sec_size_p2 = CDF_TOLE2(h->h_short_sec_size_p2);
221 h->h_num_sectors_in_sat = CDF_TOLE4(h->h_num_sectors_in_sat);
222 h->h_secid_first_directory = CDF_TOLE4(h->h_secid_first_directory);
223 h->h_min_size_standard_stream =
224 CDF_TOLE4(h->h_min_size_standard_stream);
225 h->h_secid_first_sector_in_short_sat =
226 CDF_TOLE4(CAST(uint32_t, h->h_secid_first_sector_in_short_sat));
227 h->h_num_sectors_in_short_sat =
228 CDF_TOLE4(h->h_num_sectors_in_short_sat);
229 h->h_secid_first_sector_in_master_sat =
230 CDF_TOLE4(CAST(uint32_t, h->h_secid_first_sector_in_master_sat));
231 h->h_num_sectors_in_master_sat =
232 CDF_TOLE4(h->h_num_sectors_in_master_sat);
233 for (i = 0; i < __arraycount(h->h_master_sat); i++) {
234 h->h_master_sat[i] =
235 CDF_TOLE4(CAST(uint32_t, h->h_master_sat[i]));
236 }
237 }
238
239 void
240 cdf_unpack_header(cdf_header_t *h, char *buf)
241 {
242 size_t i;
243 size_t len = 0;
244
245 CDF_UNPACK(h->h_magic);
246 CDF_UNPACKA(h->h_uuid);
247 CDF_UNPACK(h->h_revision);
248 CDF_UNPACK(h->h_version);
249 CDF_UNPACK(h->h_byte_order);
250 CDF_UNPACK(h->h_sec_size_p2);
251 CDF_UNPACK(h->h_short_sec_size_p2);
252 CDF_UNPACKA(h->h_unused0);
253 CDF_UNPACK(h->h_num_sectors_in_sat);
254 CDF_UNPACK(h->h_secid_first_directory);
255 CDF_UNPACKA(h->h_unused1);
256 CDF_UNPACK(h->h_min_size_standard_stream);
257 CDF_UNPACK(h->h_secid_first_sector_in_short_sat);
258 CDF_UNPACK(h->h_num_sectors_in_short_sat);
259 CDF_UNPACK(h->h_secid_first_sector_in_master_sat);
260 CDF_UNPACK(h->h_num_sectors_in_master_sat);
261 for (i = 0; i < __arraycount(h->h_master_sat); i++)
262 CDF_UNPACK(h->h_master_sat[i]);
263 }
264
265 void
266 cdf_swap_dir(cdf_directory_t *d)
267 {
268 d->d_namelen = CDF_TOLE2(d->d_namelen);
269 d->d_left_child = CDF_TOLE4(CAST(uint32_t, d->d_left_child));
270 d->d_right_child = CDF_TOLE4(CAST(uint32_t, d->d_right_child));
271 d->d_storage = CDF_TOLE4(CAST(uint32_t, d->d_storage));
272 d->d_storage_uuid[0] = CDF_TOLE8(d->d_storage_uuid[0]);
273 d->d_storage_uuid[1] = CDF_TOLE8(d->d_storage_uuid[1]);
274 d->d_flags = CDF_TOLE4(d->d_flags);
275 d->d_created = CDF_TOLE8(CAST(uint64_t, d->d_created));
276 d->d_modified = CDF_TOLE8(CAST(uint64_t, d->d_modified));
277 d->d_stream_first_sector = CDF_TOLE4(
278 CAST(uint32_t, d->d_stream_first_sector));
279 d->d_size = CDF_TOLE4(d->d_size);
280 }
281
282 void
283 cdf_swap_class(cdf_classid_t *d)
284 {
285 d->cl_dword = CDF_TOLE4(d->cl_dword);
286 d->cl_word[0] = CDF_TOLE2(d->cl_word[0]);
287 d->cl_word[1] = CDF_TOLE2(d->cl_word[1]);
288 }
289
290 void
291 cdf_unpack_dir(cdf_directory_t *d, char *buf)
292 {
293 size_t len = 0;
294
295 CDF_UNPACKA(d->d_name);
296 CDF_UNPACK(d->d_namelen);
297 CDF_UNPACK(d->d_type);
298 CDF_UNPACK(d->d_color);
299 CDF_UNPACK(d->d_left_child);
300 CDF_UNPACK(d->d_right_child);
301 CDF_UNPACK(d->d_storage);
302 CDF_UNPACKA(d->d_storage_uuid);
303 CDF_UNPACK(d->d_flags);
304 CDF_UNPACK(d->d_created);
305 CDF_UNPACK(d->d_modified);
306 CDF_UNPACK(d->d_stream_first_sector);
307 CDF_UNPACK(d->d_size);
308 CDF_UNPACK(d->d_unused0);
309 }
310
311 int
312 cdf_zero_stream(cdf_stream_t *scn)
313 {
314 scn->sst_len = 0;
315 scn->sst_dirlen = 0;
316 scn->sst_ss = 0;
317 free(scn->sst_tab);
318 scn->sst_tab = NULL;
319 return -1;
320 }
321
322 static size_t
323 cdf_check_stream(const cdf_stream_t *sst, const cdf_header_t *h)
324 {
325 size_t ss = sst->sst_dirlen < h->h_min_size_standard_stream ?
326 CDF_SHORT_SEC_SIZE(h) : CDF_SEC_SIZE(h);
327 assert(ss == sst->sst_ss);
328 return sst->sst_ss;
329 }
330
331 static int
332 cdf_check_stream_offset(const cdf_stream_t *sst, const cdf_header_t *h,
333 const void *p, size_t tail, int line)
334 {
335 const char *b = RCAST(const char *, sst->sst_tab);
336 const char *e = RCAST(const char *, p) + tail;
337 size_t ss = cdf_check_stream(sst, h);
338 /*LINTED*/(void)&line;
339 if (e >= b && CAST(size_t, e - b) <= ss * sst->sst_len)
340 return 0;
341 DPRINTF(("%d: offset begin %p < end %p || %" SIZE_T_FORMAT "u"
342 " > %" SIZE_T_FORMAT "u [%" SIZE_T_FORMAT "u %"
343 SIZE_T_FORMAT "u]\n", line, b, e, (size_t)(e - b),
344 ss * sst->sst_len, ss, sst->sst_len));
345 errno = EFTYPE;
346 return -1;
347 }
348
349 static ssize_t
350 cdf_read(const cdf_info_t *info, off_t off, void *buf, size_t len)
351 {
352 size_t siz = CAST(size_t, off + len);
353
354 if (CAST(off_t, off + len) != CAST(off_t, siz))
355 goto out;
356
357 if (info->i_buf != NULL && info->i_len >= siz) {
358 (void)memcpy(buf, &info->i_buf[off], len);
359 return CAST(ssize_t, len);
360 }
361
362 if (info->i_fd == -1)
363 goto out;
364
365 if (pread(info->i_fd, buf, len, off) != CAST(ssize_t, len))
366 return -1;
367
368 return CAST(ssize_t, len);
369 out:
370 errno = EINVAL;
371 return -1;
372 }
373
374 int
375 cdf_read_header(const cdf_info_t *info, cdf_header_t *h)
376 {
377 char buf[512];
378
379 (void)memcpy(cdf_bo.s, "\01\02\03\04", 4);
380 if (cdf_read(info, CAST(off_t, 0), buf, sizeof(buf)) == -1)
381 return -1;
382 cdf_unpack_header(h, buf);
383 cdf_swap_header(h);
384 if (h->h_magic != CDF_MAGIC) {
385 DPRINTF(("Bad magic %#" INT64_T_FORMAT "x != %#"
386 INT64_T_FORMAT "x\n",
387 (unsigned long long)h->h_magic,
388 (unsigned long long)CDF_MAGIC));
389 goto out;
390 }
391 if (h->h_sec_size_p2 > 20) {
392 DPRINTF(("Bad sector size %hu\n", h->h_sec_size_p2));
393 goto out;
394 }
395 if (h->h_short_sec_size_p2 > 20) {
396 DPRINTF(("Bad short sector size %hu\n",
397 h->h_short_sec_size_p2));
398 goto out;
399 }
400 return 0;
401 out:
402 errno = EFTYPE;
403 return -1;
404 }
405
406
407 ssize_t
408 cdf_read_sector(const cdf_info_t *info, void *buf, size_t offs, size_t len,
409 const cdf_header_t *h, cdf_secid_t id)
410 {
411 size_t ss = CDF_SEC_SIZE(h);
412 size_t pos;
413
414 if (SIZE_T_MAX / ss < CAST(size_t, id))
415 return -1;
416
417 pos = CDF_SEC_POS(h, id);
418 assert(ss == len);
419 return cdf_read(info, CAST(off_t, pos), RCAST(char *, buf) + offs, len);
420 }
421
422 ssize_t
423 cdf_read_short_sector(const cdf_stream_t *sst, void *buf, size_t offs,
424 size_t len, const cdf_header_t *h, cdf_secid_t id)
425 {
426 size_t ss = CDF_SHORT_SEC_SIZE(h);
427 size_t pos;
428
429 if (SIZE_T_MAX / ss < CAST(size_t, id))
430 return -1;
431
432 pos = CDF_SHORT_SEC_POS(h, id);
433 assert(ss == len);
434 if (pos + len > CDF_SEC_SIZE(h) * sst->sst_len) {
435 DPRINTF(("Out of bounds read %" SIZE_T_FORMAT "u > %"
436 SIZE_T_FORMAT "u\n",
437 pos + len, CDF_SEC_SIZE(h) * sst->sst_len));
438 goto out;
439 }
440 (void)memcpy(RCAST(char *, buf) + offs,
441 RCAST(const char *, sst->sst_tab) + pos, len);
442 return len;
443 out:
444 errno = EFTYPE;
445 return -1;
446 }
447
448 /*
449 * Read the sector allocation table.
450 */
451 int
452 cdf_read_sat(const cdf_info_t *info, cdf_header_t *h, cdf_sat_t *sat)
453 {
454 size_t i, j, k;
455 size_t ss = CDF_SEC_SIZE(h);
456 cdf_secid_t *msa, mid, sec;
457 size_t nsatpersec = (ss / sizeof(mid)) - 1;
458
459 for (i = 0; i < __arraycount(h->h_master_sat); i++)
460 if (h->h_master_sat[i] == CDF_SECID_FREE)
461 break;
462
463 #define CDF_SEC_LIMIT (UINT32_MAX / (64 * ss))
464 if ((nsatpersec > 0 &&
465 h->h_num_sectors_in_master_sat > CDF_SEC_LIMIT / nsatpersec) ||
466 i > CDF_SEC_LIMIT) {
467 DPRINTF(("Number of sectors in master SAT too big %u %"
468 SIZE_T_FORMAT "u\n", h->h_num_sectors_in_master_sat, i));
469 errno = EFTYPE;
470 return -1;
471 }
472
473 sat->sat_len = h->h_num_sectors_in_master_sat * nsatpersec + i;
474 DPRINTF(("sat_len = %" SIZE_T_FORMAT "u ss = %" SIZE_T_FORMAT "u\n",
475 sat->sat_len, ss));
476 if ((sat->sat_tab = CAST(cdf_secid_t *, CDF_CALLOC(sat->sat_len, ss)))
477 == NULL)
478 return -1;
479
480 for (i = 0; i < __arraycount(h->h_master_sat); i++) {
481 if (h->h_master_sat[i] < 0)
482 break;
483 if (cdf_read_sector(info, sat->sat_tab, ss * i, ss, h,
484 h->h_master_sat[i]) != CAST(ssize_t, ss)) {
485 DPRINTF(("Reading sector %d", h->h_master_sat[i]));
486 goto out1;
487 }
488 }
489
490 if ((msa = CAST(cdf_secid_t *, CDF_CALLOC(1, ss))) == NULL)
491 goto out1;
492
493 mid = h->h_secid_first_sector_in_master_sat;
494 for (j = 0; j < h->h_num_sectors_in_master_sat; j++) {
495 if (mid < 0)
496 goto out;
497 if (j >= CDF_LOOP_LIMIT) {
498 DPRINTF(("Reading master sector loop limit"));
499 goto out3;
500 }
501 if (cdf_read_sector(info, msa, 0, ss, h, mid) !=
502 CAST(ssize_t, ss)) {
503 DPRINTF(("Reading master sector %d", mid));
504 goto out2;
505 }
506 for (k = 0; k < nsatpersec; k++, i++) {
507 sec = CDF_TOLE4(CAST(uint32_t, msa[k]));
508 if (sec < 0)
509 goto out;
510 if (i >= sat->sat_len) {
511 DPRINTF(("Out of bounds reading MSA %"
512 SIZE_T_FORMAT "u >= %" SIZE_T_FORMAT "u",
513 i, sat->sat_len));
514 goto out3;
515 }
516 if (cdf_read_sector(info, sat->sat_tab, ss * i, ss, h,
517 sec) != CAST(ssize_t, ss)) {
518 DPRINTF(("Reading sector %d",
519 CDF_TOLE4(msa[k])));
520 goto out2;
521 }
522 }
523 mid = CDF_TOLE4(CAST(uint32_t, msa[nsatpersec]));
524 }
525 out:
526 sat->sat_len = i;
527 free(msa);
528 return 0;
529 out3:
530 errno = EFTYPE;
531 out2:
532 free(msa);
533 out1:
534 free(sat->sat_tab);
535 return -1;
536 }
537
538 size_t
539 cdf_count_chain(const cdf_sat_t *sat, cdf_secid_t sid, size_t size)
540 {
541 size_t i, j;
542 cdf_secid_t maxsector = CAST(cdf_secid_t, (sat->sat_len * size)
543 / sizeof(maxsector));
544
545 DPRINTF(("Chain:"));
546 if (sid == CDF_SECID_END_OF_CHAIN) {
547 /* 0-length chain. */
548 DPRINTF((" empty\n"));
549 return 0;
550 }
551
552 for (j = i = 0; sid >= 0; i++, j++) {
553 DPRINTF((" %d", sid));
554 if (j >= CDF_LOOP_LIMIT) {
555 DPRINTF(("Counting chain loop limit"));
556 goto out;
557 }
558 if (sid >= maxsector) {
559 DPRINTF(("Sector %d >= %d\n", sid, maxsector));
560 goto out;
561 }
562 sid = CDF_TOLE4(CAST(uint32_t, sat->sat_tab[sid]));
563 }
564 if (i == 0) {
565 DPRINTF((" none, sid: %d\n", sid));
566 goto out;
567
568 }
569 DPRINTF(("\n"));
570 return i;
571 out:
572 errno = EFTYPE;
573 return CAST(size_t, -1);
574 }
575
576 int
577 cdf_read_long_sector_chain(const cdf_info_t *info, const cdf_header_t *h,
578 const cdf_sat_t *sat, cdf_secid_t sid, size_t len, cdf_stream_t *scn)
579 {
580 size_t ss = CDF_SEC_SIZE(h), i, j;
581 ssize_t nr;
582 scn->sst_tab = NULL;
583 scn->sst_len = cdf_count_chain(sat, sid, ss);
584 scn->sst_dirlen = MAX(h->h_min_size_standard_stream, len);
585 scn->sst_ss = ss;
586
587 if (sid == CDF_SECID_END_OF_CHAIN || len == 0)
588 return cdf_zero_stream(scn);
589
590 if (scn->sst_len == CAST(size_t, -1))
591 goto out;
592
593 scn->sst_tab = CDF_CALLOC(scn->sst_len, ss);
594 if (scn->sst_tab == NULL)
595 return cdf_zero_stream(scn);
596
597 for (j = i = 0; sid >= 0; i++, j++) {
598 if (j >= CDF_LOOP_LIMIT) {
599 DPRINTF(("Read long sector chain loop limit"));
600 goto out;
601 }
602 if (i >= scn->sst_len) {
603 DPRINTF(("Out of bounds reading long sector chain "
604 "%" SIZE_T_FORMAT "u > %" SIZE_T_FORMAT "u\n", i,
605 scn->sst_len));
606 goto out;
607 }
608 if ((nr = cdf_read_sector(info, scn->sst_tab, i * ss, ss, h,
609 sid)) != CAST(ssize_t, ss)) {
610 if (i == scn->sst_len - 1 && nr > 0) {
611 /* Last sector might be truncated */
612 return 0;
613 }
614 DPRINTF(("Reading long sector chain %d", sid));
615 goto out;
616 }
617 sid = CDF_TOLE4(CAST(uint32_t, sat->sat_tab[sid]));
618 }
619 return 0;
620 out:
621 errno = EFTYPE;
622 return cdf_zero_stream(scn);
623 }
624
625 int
626 cdf_read_short_sector_chain(const cdf_header_t *h,
627 const cdf_sat_t *ssat, const cdf_stream_t *sst,
628 cdf_secid_t sid, size_t len, cdf_stream_t *scn)
629 {
630 size_t ss = CDF_SHORT_SEC_SIZE(h), i, j;
631 scn->sst_tab = NULL;
632 scn->sst_len = cdf_count_chain(ssat, sid, CDF_SEC_SIZE(h));
633 scn->sst_dirlen = len;
634 scn->sst_ss = ss;
635
636 if (scn->sst_len == CAST(size_t, -1))
637 goto out;
638
639 scn->sst_tab = CDF_CALLOC(scn->sst_len, ss);
640 if (scn->sst_tab == NULL)
641 return cdf_zero_stream(scn);
642
643 for (j = i = 0; sid >= 0; i++, j++) {
644 if (j >= CDF_LOOP_LIMIT) {
645 DPRINTF(("Read short sector chain loop limit"));
646 goto out;
647 }
648 if (i >= scn->sst_len) {
649 DPRINTF(("Out of bounds reading short sector chain "
650 "%" SIZE_T_FORMAT "u > %" SIZE_T_FORMAT "u\n",
651 i, scn->sst_len));
652 goto out;
653 }
654 if (cdf_read_short_sector(sst, scn->sst_tab, i * ss, ss, h,
655 sid) != CAST(ssize_t, ss)) {
656 DPRINTF(("Reading short sector chain %d", sid));
657 goto out;
658 }
659 sid = CDF_TOLE4(CAST(uint32_t, ssat->sat_tab[sid]));
660 }
661 return 0;
662 out:
663 errno = EFTYPE;
664 return cdf_zero_stream(scn);
665 }
666
667 int
668 cdf_read_sector_chain(const cdf_info_t *info, const cdf_header_t *h,
669 const cdf_sat_t *sat, const cdf_sat_t *ssat, const cdf_stream_t *sst,
670 cdf_secid_t sid, size_t len, cdf_stream_t *scn)
671 {
672
673 if (len < h->h_min_size_standard_stream && sst->sst_tab != NULL)
674 return cdf_read_short_sector_chain(h, ssat, sst, sid, len,
675 scn);
676 else
677 return cdf_read_long_sector_chain(info, h, sat, sid, len, scn);
678 }
679
680 int
681 cdf_read_dir(const cdf_info_t *info, const cdf_header_t *h,
682 const cdf_sat_t *sat, cdf_dir_t *dir)
683 {
684 size_t i, j;
685 size_t ss = CDF_SEC_SIZE(h), ns, nd;
686 char *buf;
687 cdf_secid_t sid = h->h_secid_first_directory;
688
689 ns = cdf_count_chain(sat, sid, ss);
690 if (ns == CAST(size_t, -1))
691 return -1;
692
693 nd = ss / CDF_DIRECTORY_SIZE;
694
695 dir->dir_len = ns * nd;
696 dir->dir_tab = CAST(cdf_directory_t *,
697 CDF_CALLOC(dir->dir_len, sizeof(dir->dir_tab[0])));
698 if (dir->dir_tab == NULL)
699 return -1;
700
701 if ((buf = CAST(char *, CDF_MALLOC(ss))) == NULL) {
702 free(dir->dir_tab);
703 return -1;
704 }
705
706 for (j = i = 0; i < ns; i++, j++) {
707 if (j >= CDF_LOOP_LIMIT) {
708 DPRINTF(("Read dir loop limit"));
709 goto out;
710 }
711 if (cdf_read_sector(info, buf, 0, ss, h, sid) !=
712 CAST(ssize_t, ss)) {
713 DPRINTF(("Reading directory sector %d", sid));
714 goto out;
715 }
716 for (j = 0; j < nd; j++) {
717 cdf_unpack_dir(&dir->dir_tab[i * nd + j],
718 &buf[j * CDF_DIRECTORY_SIZE]);
719 }
720 sid = CDF_TOLE4(CAST(uint32_t, sat->sat_tab[sid]));
721 }
722 if (NEED_SWAP)
723 for (i = 0; i < dir->dir_len; i++)
724 cdf_swap_dir(&dir->dir_tab[i]);
725 free(buf);
726 return 0;
727 out:
728 free(dir->dir_tab);
729 free(buf);
730 errno = EFTYPE;
731 return -1;
732 }
733
734
735 int
736 cdf_read_ssat(const cdf_info_t *info, const cdf_header_t *h,
737 const cdf_sat_t *sat, cdf_sat_t *ssat)
738 {
739 size_t i, j;
740 size_t ss = CDF_SEC_SIZE(h);
741 cdf_secid_t sid = h->h_secid_first_sector_in_short_sat;
742
743 ssat->sat_tab = NULL;
744 ssat->sat_len = cdf_count_chain(sat, sid, ss);
745 if (ssat->sat_len == CAST(size_t, -1))
746 goto out;
747
748 ssat->sat_tab = CAST(cdf_secid_t *, CDF_CALLOC(ssat->sat_len, ss));
749 if (ssat->sat_tab == NULL)
750 goto out1;
751
752 for (j = i = 0; sid >= 0; i++, j++) {
753 if (j >= CDF_LOOP_LIMIT) {
754 DPRINTF(("Read short sat sector loop limit"));
755 goto out;
756 }
757 if (i >= ssat->sat_len) {
758 DPRINTF(("Out of bounds reading short sector chain "
759 "%" SIZE_T_FORMAT "u > %" SIZE_T_FORMAT "u\n", i,
760 ssat->sat_len));
761 goto out;
762 }
763 if (cdf_read_sector(info, ssat->sat_tab, i * ss, ss, h, sid) !=
764 CAST(ssize_t, ss)) {
765 DPRINTF(("Reading short sat sector %d", sid));
766 goto out1;
767 }
768 sid = CDF_TOLE4(CAST(uint32_t, sat->sat_tab[sid]));
769 }
770 return 0;
771 out:
772 errno = EFTYPE;
773 out1:
774 free(ssat->sat_tab);
775 return -1;
776 }
777
778 int
779 cdf_read_short_stream(const cdf_info_t *info, const cdf_header_t *h,
780 const cdf_sat_t *sat, const cdf_dir_t *dir, cdf_stream_t *scn,
781 const cdf_directory_t **root)
782 {
783 size_t i;
784 const cdf_directory_t *d;
785
786 *root = NULL;
787 for (i = 0; i < dir->dir_len; i++)
788 if (dir->dir_tab[i].d_type == CDF_DIR_TYPE_ROOT_STORAGE)
789 break;
790
791 /* If the it is not there, just fake it; some docs don't have it */
792 if (i == dir->dir_len) {
793 DPRINTF(("Cannot find root storage dir\n"));
794 goto out;
795 }
796 d = &dir->dir_tab[i];
797 *root = d;
798
799 /* If the it is not there, just fake it; some docs don't have it */
800 if (d->d_stream_first_sector < 0) {
801 DPRINTF(("No first secror in dir\n"));
802 goto out;
803 }
804
805 return cdf_read_long_sector_chain(info, h, sat,
806 d->d_stream_first_sector, d->d_size, scn);
807 out:
808 scn->sst_tab = NULL;
809 (void)cdf_zero_stream(scn);
810 return 0;
811 }
812
813 static int
814 cdf_namecmp(const char *d, const uint16_t *s, size_t l)
815 {
816 for (; l--; d++, s++)
817 if (*d != CDF_TOLE2(*s))
818 return CAST(unsigned char, *d) - CDF_TOLE2(*s);
819 return 0;
820 }
821
822 int
823 cdf_read_doc_summary_info(const cdf_info_t *info, const cdf_header_t *h,
824 const cdf_sat_t *sat, const cdf_sat_t *ssat, const cdf_stream_t *sst,
825 const cdf_dir_t *dir, cdf_stream_t *scn)
826 {
827 return cdf_read_user_stream(info, h, sat, ssat, sst, dir,
828 "\05DocumentSummaryInformation", scn);
829 }
830
831 int
832 cdf_read_summary_info(const cdf_info_t *info, const cdf_header_t *h,
833 const cdf_sat_t *sat, const cdf_sat_t *ssat, const cdf_stream_t *sst,
834 const cdf_dir_t *dir, cdf_stream_t *scn)
835 {
836 return cdf_read_user_stream(info, h, sat, ssat, sst, dir,
837 "\05SummaryInformation", scn);
838 }
839
840 int
841 cdf_read_user_stream(const cdf_info_t *info, const cdf_header_t *h,
842 const cdf_sat_t *sat, const cdf_sat_t *ssat, const cdf_stream_t *sst,
843 const cdf_dir_t *dir, const char *name, cdf_stream_t *scn)
844 {
845 const cdf_directory_t *d;
846 int i = cdf_find_stream(dir, name, CDF_DIR_TYPE_USER_STREAM);
847
848 if (i <= 0) {
849 memset(scn, 0, sizeof(*scn));
850 return -1;
851 }
852
853 d = &dir->dir_tab[i - 1];
854 return cdf_read_sector_chain(info, h, sat, ssat, sst,
855 d->d_stream_first_sector, d->d_size, scn);
856 }
857
858 int
859 cdf_find_stream(const cdf_dir_t *dir, const char *name, int type)
860 {
861 size_t i, name_len = strlen(name) + 1;
862
863 for (i = dir->dir_len; i > 0; i--)
864 if (dir->dir_tab[i - 1].d_type == type &&
865 cdf_namecmp(name, dir->dir_tab[i - 1].d_name, name_len)
866 == 0)
867 break;
868 if (i > 0)
869 return CAST(int, i);
870
871 DPRINTF(("Cannot find type %d `%s'\n", type, name));
872 errno = ESRCH;
873 return 0;
874 }
875
876 #define CDF_SHLEN_LIMIT (UINT32_MAX / 64)
877 #define CDF_PROP_LIMIT (UINT32_MAX / (64 * sizeof(cdf_property_info_t)))
878
879 static const void *
880 cdf_offset(const void *p, size_t l)
881 {
882 return CAST(const void *, CAST(const uint8_t *, p) + l);
883 }
884
885 static const uint8_t *
886 cdf_get_property_info_pos(const cdf_stream_t *sst, const cdf_header_t *h,
887 const uint8_t *p, const uint8_t *e, size_t i)
888 {
889 size_t tail = (i << 1) + 1;
890 size_t ofs;
891 const uint8_t *q;
892
893 if (p >= e) {
894 DPRINTF(("Past end %p < %p\n", e, p));
895 return NULL;
896 }
897 if (cdf_check_stream_offset(sst, h, p, (tail + 1) * sizeof(uint32_t),
898 __LINE__) == -1)
899 return NULL;
900 ofs = CDF_GETUINT32(p, tail);
901 q = CAST(const uint8_t *, cdf_offset(CAST(const void *, p),
902 ofs - 2 * sizeof(uint32_t)));
903
904 if (q < p) {
905 DPRINTF(("Wrapped around %p < %p\n", q, p));
906 return NULL;
907 }
908
909 if (q >= e) {
910 DPRINTF(("Ran off the end %p >= %p\n", q, e));
911 return NULL;
912 }
913 return q;
914 }
915
916 static cdf_property_info_t *
917 cdf_grow_info(cdf_property_info_t **info, size_t *maxcount, size_t incr)
918 {
919 cdf_property_info_t *inp;
920 size_t newcount = *maxcount + incr;
921
922 if (newcount > CDF_PROP_LIMIT) {
923 DPRINTF(("exceeded property limit %" SIZE_T_FORMAT "u > %"
924 SIZE_T_FORMAT "u\n", newcount, CDF_PROP_LIMIT));
925 goto out;
926 }
927 inp = CAST(cdf_property_info_t *,
928 CDF_REALLOC(*info, newcount * sizeof(*inp)));
929 if (inp == NULL)
930 goto out;
931
932 *info = inp;
933 *maxcount = newcount;
934 return inp;
935 out:
936 free(*info);
937 *maxcount = 0;
938 *info = NULL;
939 return NULL;
940 }
941
942 static int
943 cdf_copy_info(cdf_property_info_t *inp, const void *p, const void *e,
944 size_t len)
945 {
946 if (inp->pi_type & CDF_VECTOR)
947 return 0;
948
949 if (CAST(size_t, CAST(const char *, e) - CAST(const char *, p)) < len)
950 return 0;
951
952 (void)memcpy(&inp->pi_val, p, len);
953
954 switch (len) {
955 case 2:
956 inp->pi_u16 = CDF_TOLE2(inp->pi_u16);
957 break;
958 case 4:
959 inp->pi_u32 = CDF_TOLE4(inp->pi_u32);
960 break;
961 case 8:
962 inp->pi_u64 = CDF_TOLE8(inp->pi_u64);
963 break;
964 default:
965 abort();
966 }
967 return 1;
968 }
969
970 int
971 cdf_read_property_info(const cdf_stream_t *sst, const cdf_header_t *h,
972 uint32_t offs, cdf_property_info_t **info, size_t *count, size_t *maxcount)
973 {
974 const cdf_section_header_t *shp;
975 cdf_section_header_t sh;
976 const uint8_t *p, *q, *e;
977 size_t i, o4, nelements, j, slen, left;
978 cdf_property_info_t *inp;
979
980 if (offs > UINT32_MAX / 4) {
981 errno = EFTYPE;
982 goto out;
983 }
984 shp = CAST(const cdf_section_header_t *,
985 cdf_offset(sst->sst_tab, offs));
986 if (cdf_check_stream_offset(sst, h, shp, sizeof(*shp), __LINE__) == -1)
987 goto out;
988 sh.sh_len = CDF_TOLE4(shp->sh_len);
989 if (sh.sh_len > CDF_SHLEN_LIMIT) {
990 errno = EFTYPE;
991 goto out;
992 }
993
994 if (cdf_check_stream_offset(sst, h, shp, sh.sh_len, __LINE__) == -1)
995 goto out;
996
997 sh.sh_properties = CDF_TOLE4(shp->sh_properties);
998 DPRINTF(("section len: %u properties %u\n", sh.sh_len,
999 sh.sh_properties));
1000 if (sh.sh_properties > CDF_PROP_LIMIT)
1001 goto out;
1002 inp = cdf_grow_info(info, maxcount, sh.sh_properties);
1003 if (inp == NULL)
1004 goto out;
1005 inp += *count;
1006 *count += sh.sh_properties;
1007 p = CAST(const uint8_t *, cdf_offset(sst->sst_tab, offs + sizeof(sh)));
1008 e = CAST(const uint8_t *, cdf_offset(shp, sh.sh_len));
1009 if (p >= e || cdf_check_stream_offset(sst, h, e, 0, __LINE__) == -1)
1010 goto out;
1011
1012 for (i = 0; i < sh.sh_properties; i++) {
1013 if ((q = cdf_get_property_info_pos(sst, h, p, e, i)) == NULL)
1014 goto out;
1015 inp[i].pi_id = CDF_GETUINT32(p, i << 1);
1016 left = CAST(size_t, e - q);
1017 if (left < sizeof(uint32_t)) {
1018 DPRINTF(("short info (no type)_\n"));
1019 goto out;
1020 }
1021 inp[i].pi_type = CDF_GETUINT32(q, 0);
1022 DPRINTF(("%" SIZE_T_FORMAT "u) id=%#x type=%#x offs=%#tx,%#x\n",
1023 i, inp[i].pi_id, inp[i].pi_type, q - p, offs));
1024 if (inp[i].pi_type & CDF_VECTOR) {
1025 if (left < sizeof(uint32_t) * 2) {
1026 DPRINTF(("missing CDF_VECTOR length\n"));
1027 goto out;
1028 }
1029 nelements = CDF_GETUINT32(q, 1);
1030 if (nelements > CDF_ELEMENT_LIMIT || nelements == 0) {
1031 DPRINTF(("CDF_VECTOR with nelements == %"
1032 SIZE_T_FORMAT "u\n", nelements));
1033 goto out;
1034 }
1035 slen = 2;
1036 } else {
1037 nelements = 1;
1038 slen = 1;
1039 }
1040 o4 = slen * sizeof(uint32_t);
1041 if (inp[i].pi_type & (CDF_ARRAY|CDF_BYREF|CDF_RESERVED))
1042 goto unknown;
1043 switch (inp[i].pi_type & CDF_TYPEMASK) {
1044 case CDF_NULL:
1045 case CDF_EMPTY:
1046 break;
1047 case CDF_SIGNED16:
1048 if (!cdf_copy_info(&inp[i], &q[o4], e, sizeof(int16_t)))
1049 goto unknown;
1050 break;
1051 case CDF_SIGNED32:
1052 case CDF_BOOL:
1053 case CDF_UNSIGNED32:
1054 case CDF_FLOAT:
1055 if (!cdf_copy_info(&inp[i], &q[o4], e, sizeof(int32_t)))
1056 goto unknown;
1057 break;
1058 case CDF_SIGNED64:
1059 case CDF_UNSIGNED64:
1060 case CDF_DOUBLE:
1061 case CDF_FILETIME:
1062 if (!cdf_copy_info(&inp[i], &q[o4], e, sizeof(int64_t)))
1063 goto unknown;
1064 break;
1065 case CDF_LENGTH32_STRING:
1066 case CDF_LENGTH32_WSTRING:
1067 if (nelements > 1) {
1068 size_t nelem = inp - *info;
1069 inp = cdf_grow_info(info, maxcount, nelements);
1070 if (inp == NULL)
1071 goto out;
1072 inp += nelem;
1073 }
1074 for (j = 0; j < nelements && i < sh.sh_properties;
1075 j++, i++)
1076 {
1077 uint32_t l;
1078
1079 if (o4 + sizeof(uint32_t) > left)
1080 goto out;
1081
1082 l = CDF_GETUINT32(q, slen);
1083 o4 += sizeof(uint32_t);
1084 if (o4 + l > left)
1085 goto out;
1086
1087 inp[i].pi_str.s_len = l;
1088 inp[i].pi_str.s_buf = CAST(const char *,
1089 CAST(const void *, &q[o4]));
1090
1091 DPRINTF(("o=%" SIZE_T_FORMAT "u l=%d(%"
1092 SIZE_T_FORMAT "u), t=%" SIZE_T_FORMAT
1093 "u s=%s\n", o4, l, CDF_ROUND(l, sizeof(l)),
1094 left, inp[i].pi_str.s_buf));
1095
1096 if (l & 1)
1097 l++;
1098
1099 slen += l >> 1;
1100 o4 = slen * sizeof(uint32_t);
1101 }
1102 i--;
1103 break;
1104 case CDF_CLIPBOARD:
1105 if (inp[i].pi_type & CDF_VECTOR)
1106 goto unknown;
1107 break;
1108 default:
1109 unknown:
1110 memset(&inp[i].pi_val, 0, sizeof(inp[i].pi_val));
1111 DPRINTF(("Don't know how to deal with %#x\n",
1112 inp[i].pi_type));
1113 break;
1114 }
1115 }
1116 return 0;
1117 out:
1118 free(*info);
1119 *info = NULL;
1120 *count = 0;
1121 *maxcount = 0;
1122 errno = EFTYPE;
1123 return -1;
1124 }
1125
1126 int
1127 cdf_unpack_summary_info(const cdf_stream_t *sst, const cdf_header_t *h,
1128 cdf_summary_info_header_t *ssi, cdf_property_info_t **info, size_t *count)
1129 {
1130 size_t maxcount;
1131 const cdf_summary_info_header_t *si =
1132 CAST(const cdf_summary_info_header_t *, sst->sst_tab);
1133 const cdf_section_declaration_t *sd =
1134 CAST(const cdf_section_declaration_t *, RCAST(const void *,
1135 RCAST(const char *, sst->sst_tab)
1136 + CDF_SECTION_DECLARATION_OFFSET));
1137
1138 if (cdf_check_stream_offset(sst, h, si, sizeof(*si), __LINE__) == -1 ||
1139 cdf_check_stream_offset(sst, h, sd, sizeof(*sd), __LINE__) == -1)
1140 return -1;
1141 ssi->si_byte_order = CDF_TOLE2(si->si_byte_order);
1142 ssi->si_os_version = CDF_TOLE2(si->si_os_version);
1143 ssi->si_os = CDF_TOLE2(si->si_os);
1144 ssi->si_class = si->si_class;
1145 cdf_swap_class(&ssi->si_class);
1146 ssi->si_count = CDF_TOLE4(si->si_count);
1147 *count = 0;
1148 maxcount = 0;
1149 *info = NULL;
1150 if (cdf_read_property_info(sst, h, CDF_TOLE4(sd->sd_offset), info,
1151 count, &maxcount) == -1)
1152 return -1;
1153 return 0;
1154 }
1155
1156
1157 #define extract_catalog_field(t, f, l) \
1158 if (b + l + sizeof(cep->f) > eb) { \
1159 cep->ce_namlen = 0; \
1160 break; \
1161 } \
1162 memcpy(&cep->f, b + (l), sizeof(cep->f)); \
1163 ce[i].f = CAST(t, CDF_TOLE(cep->f))
1164
1165 int
1166 cdf_unpack_catalog(const cdf_header_t *h, const cdf_stream_t *sst,
1167 cdf_catalog_t **cat)
1168 {
1169 size_t ss = cdf_check_stream(sst, h);
1170 const char *b = CAST(const char *, sst->sst_tab);
1171 const char *nb, *eb = b + ss * sst->sst_len;
1172 size_t nr, i, j, k;
1173 cdf_catalog_entry_t *ce;
1174 uint16_t reclen;
1175 const uint16_t *np;
1176
1177 for (nr = 0;; nr++) {
1178 memcpy(&reclen, b, sizeof(reclen));
1179 reclen = CDF_TOLE2(reclen);
1180 if (reclen == 0)
1181 break;
1182 b += reclen;
1183 if (b > eb)
1184 break;
1185 }
1186 if (nr == 0)
1187 return -1;
1188 nr--;
1189 *cat = CAST(cdf_catalog_t *,
1190 CDF_MALLOC(sizeof(cdf_catalog_t) + nr * sizeof(*ce)));
1191 if (*cat == NULL)
1192 return -1;
1193 ce = (*cat)->cat_e;
1194 memset(ce, 0, nr * sizeof(*ce));
1195 b = CAST(const char *, sst->sst_tab);
1196 for (j = i = 0; i < nr; b += reclen) {
1197 cdf_catalog_entry_t *cep = &ce[j];
1198 uint16_t rlen;
1199
1200 extract_catalog_field(uint16_t, ce_namlen, 0);
1201 extract_catalog_field(uint16_t, ce_num, 4);
1202 extract_catalog_field(uint64_t, ce_timestamp, 8);
1203 reclen = cep->ce_namlen;
1204
1205 if (reclen < 14) {
1206 cep->ce_namlen = 0;
1207 continue;
1208 }
1209
1210 cep->ce_namlen = __arraycount(cep->ce_name) - 1;
1211 rlen = reclen - 14;
1212 if (cep->ce_namlen > rlen)
1213 cep->ce_namlen = rlen;
1214
1215 np = CAST(const uint16_t *, CAST(const void *, (b + 16)));
1216 nb = CAST(const char *, CAST(const void *,
1217 (np + cep->ce_namlen)));
1218 if (nb > eb) {
1219 cep->ce_namlen = 0;
1220 break;
1221 }
1222
1223 for (k = 0; k < cep->ce_namlen; k++)
1224 cep->ce_name[k] = np[k]; /* XXX: CDF_TOLE2? */
1225 cep->ce_name[cep->ce_namlen] = 0;
1226 j = i;
1227 i++;
1228 }
1229 (*cat)->cat_num = j;
1230 return 0;
1231 }
1232
1233 int
1234 cdf_print_classid(char *buf, size_t buflen, const cdf_classid_t *id)
1235 {
1236 return snprintf(buf, buflen, "%.8x-%.4x-%.4x-%.2x%.2x-"
1237 "%.2x%.2x%.2x%.2x%.2x%.2x", id->cl_dword, id->cl_word[0],
1238 id->cl_word[1], id->cl_two[0], id->cl_two[1], id->cl_six[0],
1239 id->cl_six[1], id->cl_six[2], id->cl_six[3], id->cl_six[4],
1240 id->cl_six[5]);
1241 }
1242
1243 static const struct {
1244 uint32_t v;
1245 const char *n;
1246 } vn[] = {
1247 { CDF_PROPERTY_CODE_PAGE, "Code page" },
1248 { CDF_PROPERTY_TITLE, "Title" },
1249 { CDF_PROPERTY_SUBJECT, "Subject" },
1250 { CDF_PROPERTY_AUTHOR, "Author" },
1251 { CDF_PROPERTY_KEYWORDS, "Keywords" },
1252 { CDF_PROPERTY_COMMENTS, "Comments" },
1253 { CDF_PROPERTY_TEMPLATE, "Template" },
1254 { CDF_PROPERTY_LAST_SAVED_BY, "Last Saved By" },
1255 { CDF_PROPERTY_REVISION_NUMBER, "Revision Number" },
1256 { CDF_PROPERTY_TOTAL_EDITING_TIME, "Total Editing Time" },
1257 { CDF_PROPERTY_LAST_PRINTED, "Last Printed" },
1258 { CDF_PROPERTY_CREATE_TIME, "Create Time/Date" },
1259 { CDF_PROPERTY_LAST_SAVED_TIME, "Last Saved Time/Date" },
1260 { CDF_PROPERTY_NUMBER_OF_PAGES, "Number of Pages" },
1261 { CDF_PROPERTY_NUMBER_OF_WORDS, "Number of Words" },
1262 { CDF_PROPERTY_NUMBER_OF_CHARACTERS, "Number of Characters" },
1263 { CDF_PROPERTY_THUMBNAIL, "Thumbnail" },
1264 { CDF_PROPERTY_NAME_OF_APPLICATION, "Name of Creating Application" },
1265 { CDF_PROPERTY_SECURITY, "Security" },
1266 { CDF_PROPERTY_LOCALE_ID, "Locale ID" },
1267 };
1268
1269 int
1270 cdf_print_property_name(char *buf, size_t bufsiz, uint32_t p)
1271 {
1272 size_t i;
1273
1274 for (i = 0; i < __arraycount(vn); i++)
1275 if (vn[i].v == p)
1276 return snprintf(buf, bufsiz, "%s", vn[i].n);
1277 return snprintf(buf, bufsiz, "%#x", p);
1278 }
1279
1280 int
1281 cdf_print_elapsed_time(char *buf, size_t bufsiz, cdf_timestamp_t ts)
1282 {
1283 int len = 0;
1284 int days, hours, mins, secs;
1285
1286 ts /= CDF_TIME_PREC;
1287 secs = CAST(int, ts % 60);
1288 ts /= 60;
1289 mins = CAST(int, ts % 60);
1290 ts /= 60;
1291 hours = CAST(int, ts % 24);
1292 ts /= 24;
1293 days = CAST(int, ts);
1294
1295 if (days) {
1296 len += snprintf(buf + len, bufsiz - len, "%dd+", days);
1297 if (CAST(size_t, len) >= bufsiz)
1298 return len;
1299 }
1300
1301 if (days || hours) {
1302 len += snprintf(buf + len, bufsiz - len, "%.2d:", hours);
1303 if (CAST(size_t, len) >= bufsiz)
1304 return len;
1305 }
1306
1307 len += snprintf(buf + len, bufsiz - len, "%.2d:", mins);
1308 if (CAST(size_t, len) >= bufsiz)
1309 return len;
1310
1311 len += snprintf(buf + len, bufsiz - len, "%.2d", secs);
1312 return len;
1313 }
1314
1315 char *
1316 cdf_u16tos8(char *buf, size_t len, const uint16_t *p)
1317 {
1318 size_t i;
1319 for (i = 0; i < len && p[i]; i++)
1320 buf[i] = CAST(char, p[i]);
1321 buf[i] = '\0';
1322 return buf;
1323 }
1324
1325 #ifdef CDF_DEBUG
1326 void
1327 cdf_dump_header(const cdf_header_t *h)
1328 {
1329 size_t i;
1330
1331 #define DUMP(a, b) (void)fprintf(stderr, "%40.40s = " a "\n", # b, h->h_ ## b)
1332 #define DUMP2(a, b) (void)fprintf(stderr, "%40.40s = " a " (" a ")\n", # b, \
1333 h->h_ ## b, 1 << h->h_ ## b)
1334 DUMP("%d", revision);
1335 DUMP("%d", version);
1336 DUMP("%#x", byte_order);
1337 DUMP2("%d", sec_size_p2);
1338 DUMP2("%d", short_sec_size_p2);
1339 DUMP("%d", num_sectors_in_sat);
1340 DUMP("%d", secid_first_directory);
1341 DUMP("%d", min_size_standard_stream);
1342 DUMP("%d", secid_first_sector_in_short_sat);
1343 DUMP("%d", num_sectors_in_short_sat);
1344 DUMP("%d", secid_first_sector_in_master_sat);
1345 DUMP("%d", num_sectors_in_master_sat);
1346 for (i = 0; i < __arraycount(h->h_master_sat); i++) {
1347 if (h->h_master_sat[i] == CDF_SECID_FREE)
1348 break;
1349 (void)fprintf(stderr, "%35.35s[%.3" SIZE_T_FORMAT "u] = %d\n",
1350 "master_sat", i, h->h_master_sat[i]);
1351 }
1352 }
1353
1354 void
1355 cdf_dump_sat(const char *prefix, const cdf_sat_t *sat, size_t size)
1356 {
1357 size_t i, j, s = size / sizeof(cdf_secid_t);
1358
1359 for (i = 0; i < sat->sat_len; i++) {
1360 (void)fprintf(stderr, "%s[%" SIZE_T_FORMAT "u]:\n%.6"
1361 SIZE_T_FORMAT "u: ", prefix, i, i * s);
1362 for (j = 0; j < s; j++) {
1363 (void)fprintf(stderr, "%5d, ",
1364 CDF_TOLE4(sat->sat_tab[s * i + j]));
1365 if ((j + 1) % 10 == 0)
1366 (void)fprintf(stderr, "\n%.6" SIZE_T_FORMAT
1367 "u: ", i * s + j + 1);
1368 }
1369 (void)fprintf(stderr, "\n");
1370 }
1371 }
1372
1373 void
1374 cdf_dump(const void *v, size_t len)
1375 {
1376 size_t i, j;
1377 const unsigned char *p = v;
1378 char abuf[16];
1379
1380 (void)fprintf(stderr, "%.4x: ", 0);
1381 for (i = 0, j = 0; i < len; i++, p++) {
1382 (void)fprintf(stderr, "%.2x ", *p);
1383 abuf[j++] = isprint(*p) ? *p : '.';
1384 if (j == 16) {
1385 j = 0;
1386 abuf[15] = '\0';
1387 (void)fprintf(stderr, "%s\n%.4" SIZE_T_FORMAT "x: ",
1388 abuf, i + 1);
1389 }
1390 }
1391 (void)fprintf(stderr, "\n");
1392 }
1393
1394 void
1395 cdf_dump_stream(const cdf_stream_t *sst)
1396 {
1397 size_t ss = sst->sst_ss;
1398 cdf_dump(sst->sst_tab, ss * sst->sst_len);
1399 }
1400
1401 void
1402 cdf_dump_dir(const cdf_info_t *info, const cdf_header_t *h,
1403 const cdf_sat_t *sat, const cdf_sat_t *ssat, const cdf_stream_t *sst,
1404 const cdf_dir_t *dir)
1405 {
1406 size_t i, j;
1407 cdf_directory_t *d;
1408 char name[__arraycount(d->d_name)];
1409 cdf_stream_t scn;
1410 struct timespec ts;
1411
1412 static const char *types[] = { "empty", "user storage",
1413 "user stream", "lockbytes", "property", "root storage" };
1414
1415 for (i = 0; i < dir->dir_len; i++) {
1416 char buf[26];
1417 d = &dir->dir_tab[i];
1418 for (j = 0; j < sizeof(name); j++)
1419 name[j] = (char)CDF_TOLE2(d->d_name[j]);
1420 (void)fprintf(stderr, "Directory %" SIZE_T_FORMAT "u: %s\n",
1421 i, name);
1422 if (d->d_type < __arraycount(types))
1423 (void)fprintf(stderr, "Type: %s\n", types[d->d_type]);
1424 else
1425 (void)fprintf(stderr, "Type: %d\n", d->d_type);
1426 (void)fprintf(stderr, "Color: %s\n",
1427 d->d_color ? "black" : "red");
1428 (void)fprintf(stderr, "Left child: %d\n", d->d_left_child);
1429 (void)fprintf(stderr, "Right child: %d\n", d->d_right_child);
1430 (void)fprintf(stderr, "Flags: %#x\n", d->d_flags);
1431 cdf_timestamp_to_timespec(&ts, d->d_created);
1432 (void)fprintf(stderr, "Created %s", cdf_ctime(&ts.tv_sec, buf));
1433 cdf_timestamp_to_timespec(&ts, d->d_modified);
1434 (void)fprintf(stderr, "Modified %s",
1435 cdf_ctime(&ts.tv_sec, buf));
1436 (void)fprintf(stderr, "Stream %d\n", d->d_stream_first_sector);
1437 (void)fprintf(stderr, "Size %d\n", d->d_size);
1438 switch (d->d_type) {
1439 case CDF_DIR_TYPE_USER_STORAGE:
1440 (void)fprintf(stderr, "Storage: %d\n", d->d_storage);
1441 break;
1442 case CDF_DIR_TYPE_USER_STREAM:
1443 if (sst == NULL)
1444 break;
1445 if (cdf_read_sector_chain(info, h, sat, ssat, sst,
1446 d->d_stream_first_sector, d->d_size, &scn) == -1) {
1447 warn("Can't read stream for %s at %d len %d",
1448 name, d->d_stream_first_sector, d->d_size);
1449 break;
1450 }
1451 cdf_dump_stream(&scn);
1452 free(scn.sst_tab);
1453 break;
1454 default:
1455 break;
1456 }
1457
1458 }
1459 }
1460
1461 void
1462 cdf_dump_property_info(const cdf_property_info_t *info, size_t count)
1463 {
1464 cdf_timestamp_t tp;
1465 struct timespec ts;
1466 char buf[64];
1467 size_t i, j;
1468
1469 for (i = 0; i < count; i++) {
1470 cdf_print_property_name(buf, sizeof(buf), info[i].pi_id);
1471 (void)fprintf(stderr, "%" SIZE_T_FORMAT "u) %s: ", i, buf);
1472 switch (info[i].pi_type) {
1473 case CDF_NULL:
1474 break;
1475 case CDF_SIGNED16:
1476 (void)fprintf(stderr, "signed 16 [%hd]\n",
1477 info[i].pi_s16);
1478 break;
1479 case CDF_SIGNED32:
1480 (void)fprintf(stderr, "signed 32 [%d]\n",
1481 info[i].pi_s32);
1482 break;
1483 case CDF_UNSIGNED32:
1484 (void)fprintf(stderr, "unsigned 32 [%u]\n",
1485 info[i].pi_u32);
1486 break;
1487 case CDF_FLOAT:
1488 (void)fprintf(stderr, "float [%g]\n",
1489 info[i].pi_f);
1490 break;
1491 case CDF_DOUBLE:
1492 (void)fprintf(stderr, "double [%g]\n",
1493 info[i].pi_d);
1494 break;
1495 case CDF_LENGTH32_STRING:
1496 (void)fprintf(stderr, "string %u [%.*s]\n",
1497 info[i].pi_str.s_len,
1498 info[i].pi_str.s_len, info[i].pi_str.s_buf);
1499 break;
1500 case CDF_LENGTH32_WSTRING:
1501 (void)fprintf(stderr, "string %u [",
1502 info[i].pi_str.s_len);
1503 for (j = 0; j < info[i].pi_str.s_len - 1; j++)
1504 (void)fputc(info[i].pi_str.s_buf[j << 1], stderr);
1505 (void)fprintf(stderr, "]\n");
1506 break;
1507 case CDF_FILETIME:
1508 tp = info[i].pi_tp;
1509 if (tp < 1000000000000000LL) {
1510 cdf_print_elapsed_time(buf, sizeof(buf), tp);
1511 (void)fprintf(stderr, "timestamp %s\n", buf);
1512 } else {
1513 char tbuf[26];
1514 cdf_timestamp_to_timespec(&ts, tp);
1515 (void)fprintf(stderr, "timestamp %s",
1516 cdf_ctime(&ts.tv_sec, tbuf));
1517 }
1518 break;
1519 case CDF_CLIPBOARD:
1520 (void)fprintf(stderr, "CLIPBOARD %u\n", info[i].pi_u32);
1521 break;
1522 default:
1523 DPRINTF(("Don't know how to deal with %#x\n",
1524 info[i].pi_type));
1525 break;
1526 }
1527 }
1528 }
1529
1530
1531 void
1532 cdf_dump_summary_info(const cdf_header_t *h, const cdf_stream_t *sst)
1533 {
1534 char buf[128];
1535 cdf_summary_info_header_t ssi;
1536 cdf_property_info_t *info;
1537 size_t count;
1538
1539 (void)&h;
1540 if (cdf_unpack_summary_info(sst, h, &ssi, &info, &count) == -1)
1541 return;
1542 (void)fprintf(stderr, "Endian: %#x\n", ssi.si_byte_order);
1543 (void)fprintf(stderr, "Os Version %d.%d\n", ssi.si_os_version & 0xff,
1544 ssi.si_os_version >> 8);
1545 (void)fprintf(stderr, "Os %d\n", ssi.si_os);
1546 cdf_print_classid(buf, sizeof(buf), &ssi.si_class);
1547 (void)fprintf(stderr, "Class %s\n", buf);
1548 (void)fprintf(stderr, "Count %d\n", ssi.si_count);
1549 cdf_dump_property_info(info, count);
1550 free(info);
1551 }
1552
1553
1554 void
1555 cdf_dump_catalog(const cdf_header_t *h, const cdf_stream_t *sst)
1556 {
1557 cdf_catalog_t *cat;
1558 cdf_unpack_catalog(h, sst, &cat);
1559 const cdf_catalog_entry_t *ce = cat->cat_e;
1560 struct timespec ts;
1561 char tbuf[64], sbuf[256];
1562 size_t i;
1563
1564 printf("Catalog:\n");
1565 for (i = 0; i < cat->cat_num; i++) {
1566 cdf_timestamp_to_timespec(&ts, ce[i].ce_timestamp);
1567 printf("\t%d %s %s", ce[i].ce_num,
1568 cdf_u16tos8(sbuf, ce[i].ce_namlen, ce[i].ce_name),
1569 cdf_ctime(&ts.tv_sec, tbuf));
1570 }
1571 free(cat);
1572 }
1573
1574 #endif
1575
1576 #ifdef TEST
1577 int
1578 main(int argc, char *argv[])
1579 {
1580 int i;
1581 cdf_header_t h;
1582 cdf_sat_t sat, ssat;
1583 cdf_stream_t sst, scn;
1584 cdf_dir_t dir;
1585 cdf_info_t info;
1586 const cdf_directory_t *root;
1587 #ifdef __linux__
1588 #define getprogname() __progname
1589 extern char *__progname;
1590 #endif
1591 if (argc < 2) {
1592 (void)fprintf(stderr, "Usage: %s <filename>\n", getprogname());
1593 return -1;
1594 }
1595
1596 info.i_buf = NULL;
1597 info.i_len = 0;
1598 for (i = 1; i < argc; i++) {
1599 if ((info.i_fd = open(argv[1], O_RDONLY)) == -1)
1600 err(EXIT_FAILURE, "Cannot open `%s'", argv[1]);
1601
1602 if (cdf_read_header(&info, &h) == -1)
1603 err(EXIT_FAILURE, "Cannot read header");
1604 #ifdef CDF_DEBUG
1605 cdf_dump_header(&h);
1606 #endif
1607
1608 if (cdf_read_sat(&info, &h, &sat) == -1)
1609 err(EXIT_FAILURE, "Cannot read sat");
1610 #ifdef CDF_DEBUG
1611 cdf_dump_sat("SAT", &sat, CDF_SEC_SIZE(&h));
1612 #endif
1613
1614 if (cdf_read_ssat(&info, &h, &sat, &ssat) == -1)
1615 err(EXIT_FAILURE, "Cannot read ssat");
1616 #ifdef CDF_DEBUG
1617 cdf_dump_sat("SSAT", &ssat, CDF_SHORT_SEC_SIZE(&h));
1618 #endif
1619
1620 if (cdf_read_dir(&info, &h, &sat, &dir) == -1)
1621 err(EXIT_FAILURE, "Cannot read dir");
1622
1623 if (cdf_read_short_stream(&info, &h, &sat, &dir, &sst, &root)
1624 == -1)
1625 err(EXIT_FAILURE, "Cannot read short stream");
1626 #ifdef CDF_DEBUG
1627 cdf_dump_stream(&sst);
1628 #endif
1629
1630 #ifdef CDF_DEBUG
1631 cdf_dump_dir(&info, &h, &sat, &ssat, &sst, &dir);
1632 #endif
1633
1634
1635 if (cdf_read_summary_info(&info, &h, &sat, &ssat, &sst, &dir,
1636 &scn) == -1)
1637 warn("Cannot read summary info");
1638 #ifdef CDF_DEBUG
1639 else
1640 cdf_dump_summary_info(&h, &scn);
1641 #endif
1642 if (cdf_read_user_stream(&info, &h, &sat, &ssat, &sst,
1643 &dir, "Catalog", &scn) == -1)
1644 warn("Cannot read catalog");
1645 #ifdef CDF_DEBUG
1646 else
1647 cdf_dump_catalog(&h, &scn);
1648 #endif
1649
1650 (void)close(info.i_fd);
1651 }
1652
1653 return 0;
1654 }
1655 #endif
DragonFly BSD