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 1.73 2015/01/11 16:58:25 christos Exp $")
39 #endif
40
41 #include <assert.h>
42 #ifdef CDF_DEBUG
43 #include <err.h>
44 #endif
45 #include <stdlib.h>
46
47 #ifdef PHP_WIN32
48 #include "win32/unistd.h"
49 #else
50 #include <unistd.h>
51 #endif
52
53 #ifndef UINT32_MAX
54 # define UINT32_MAX (0xffffffff)
55 #endif
56
57 #include <string.h>
58 #include <time.h>
59 #include <ctype.h>
60 #ifdef HAVE_LIMITS_H
61 #include <limits.h>
62 #endif
63
64 #ifndef EFTYPE
65 #define EFTYPE EINVAL
66 #endif
67
68 #include "cdf.h"
69
70 #ifdef CDF_DEBUG
71 #define DPRINTF(a) printf a, fflush(stdout)
72 #else
73 #define DPRINTF(a)
74 #endif
75
76 static union {
77 char s[4];
78 uint32_t u;
79 } cdf_bo;
80
81 #define NEED_SWAP (cdf_bo.u == (uint32_t)0x01020304)
82
83 #define CDF_TOLE8(x) ((uint64_t)(NEED_SWAP ? _cdf_tole8(x) : (uint64_t)(x)))
84 #define CDF_TOLE4(x) ((uint32_t)(NEED_SWAP ? _cdf_tole4(x) : (uint32_t)(x)))
85 #define CDF_TOLE2(x) ((uint16_t)(NEED_SWAP ? _cdf_tole2(x) : (uint16_t)(x)))
86 #define CDF_TOLE(x) (/*CONSTCOND*/sizeof(x) == 2 ? \
87 CDF_TOLE2(CAST(uint16_t, x)) : \
88 (/*CONSTCOND*/sizeof(x) == 4 ? \
89 CDF_TOLE4(CAST(uint32_t, x)) : \
90 CDF_TOLE8(CAST(uint64_t, x))))
91 #define CDF_GETUINT32(x, y) cdf_getuint32(x, y)
92
93
94 /*
95 * swap a short
96 */
97 static uint16_t
_cdf_tole2(uint16_t sv)98 _cdf_tole2(uint16_t sv)
99 {
100 uint16_t rv;
101 uint8_t *s = (uint8_t *)(void *)&sv;
102 uint8_t *d = (uint8_t *)(void *)&rv;
103 d[0] = s[1];
104 d[1] = s[0];
105 return rv;
106 }
107
108 /*
109 * swap an int
110 */
111 static uint32_t
_cdf_tole4(uint32_t sv)112 _cdf_tole4(uint32_t sv)
113 {
114 uint32_t rv;
115 uint8_t *s = (uint8_t *)(void *)&sv;
116 uint8_t *d = (uint8_t *)(void *)&rv;
117 d[0] = s[3];
118 d[1] = s[2];
119 d[2] = s[1];
120 d[3] = s[0];
121 return rv;
122 }
123
124 /*
125 * swap a quad
126 */
127 static uint64_t
_cdf_tole8(uint64_t sv)128 _cdf_tole8(uint64_t sv)
129 {
130 uint64_t rv;
131 uint8_t *s = (uint8_t *)(void *)&sv;
132 uint8_t *d = (uint8_t *)(void *)&rv;
133 d[0] = s[7];
134 d[1] = s[6];
135 d[2] = s[5];
136 d[3] = s[4];
137 d[4] = s[3];
138 d[5] = s[2];
139 d[6] = s[1];
140 d[7] = s[0];
141 return rv;
142 }
143
144 /*
145 * grab a uint32_t from a possibly unaligned address, and return it in
146 * the native host order.
147 */
148 static uint32_t
cdf_getuint32(const uint8_t * p,size_t offs)149 cdf_getuint32(const uint8_t *p, size_t offs)
150 {
151 uint32_t rv;
152 (void)memcpy(&rv, p + offs * sizeof(uint32_t), sizeof(rv));
153 return CDF_TOLE4(rv);
154 }
155
156 #define CDF_UNPACK(a) \
157 (void)memcpy(&(a), &buf[len], sizeof(a)), len += sizeof(a)
158 #define CDF_UNPACKA(a) \
159 (void)memcpy((a), &buf[len], sizeof(a)), len += sizeof(a)
160
161 uint16_t
cdf_tole2(uint16_t sv)162 cdf_tole2(uint16_t sv)
163 {
164 return CDF_TOLE2(sv);
165 }
166
167 uint32_t
cdf_tole4(uint32_t sv)168 cdf_tole4(uint32_t sv)
169 {
170 return CDF_TOLE4(sv);
171 }
172
173 uint64_t
cdf_tole8(uint64_t sv)174 cdf_tole8(uint64_t sv)
175 {
176 return CDF_TOLE8(sv);
177 }
178
179 void
cdf_swap_header(cdf_header_t * h)180 cdf_swap_header(cdf_header_t *h)
181 {
182 size_t i;
183
184 h->h_magic = CDF_TOLE8(h->h_magic);
185 h->h_uuid[0] = CDF_TOLE8(h->h_uuid[0]);
186 h->h_uuid[1] = CDF_TOLE8(h->h_uuid[1]);
187 h->h_revision = CDF_TOLE2(h->h_revision);
188 h->h_version = CDF_TOLE2(h->h_version);
189 h->h_byte_order = CDF_TOLE2(h->h_byte_order);
190 h->h_sec_size_p2 = CDF_TOLE2(h->h_sec_size_p2);
191 h->h_short_sec_size_p2 = CDF_TOLE2(h->h_short_sec_size_p2);
192 h->h_num_sectors_in_sat = CDF_TOLE4(h->h_num_sectors_in_sat);
193 h->h_secid_first_directory = CDF_TOLE4(h->h_secid_first_directory);
194 h->h_min_size_standard_stream =
195 CDF_TOLE4(h->h_min_size_standard_stream);
196 h->h_secid_first_sector_in_short_sat =
197 CDF_TOLE4((uint32_t)h->h_secid_first_sector_in_short_sat);
198 h->h_num_sectors_in_short_sat =
199 CDF_TOLE4(h->h_num_sectors_in_short_sat);
200 h->h_secid_first_sector_in_master_sat =
201 CDF_TOLE4((uint32_t)h->h_secid_first_sector_in_master_sat);
202 h->h_num_sectors_in_master_sat =
203 CDF_TOLE4(h->h_num_sectors_in_master_sat);
204 for (i = 0; i < __arraycount(h->h_master_sat); i++)
205 h->h_master_sat[i] = CDF_TOLE4((uint32_t)h->h_master_sat[i]);
206 }
207
208 void
cdf_unpack_header(cdf_header_t * h,char * buf)209 cdf_unpack_header(cdf_header_t *h, char *buf)
210 {
211 size_t i;
212 size_t len = 0;
213
214 CDF_UNPACK(h->h_magic);
215 CDF_UNPACKA(h->h_uuid);
216 CDF_UNPACK(h->h_revision);
217 CDF_UNPACK(h->h_version);
218 CDF_UNPACK(h->h_byte_order);
219 CDF_UNPACK(h->h_sec_size_p2);
220 CDF_UNPACK(h->h_short_sec_size_p2);
221 CDF_UNPACKA(h->h_unused0);
222 CDF_UNPACK(h->h_num_sectors_in_sat);
223 CDF_UNPACK(h->h_secid_first_directory);
224 CDF_UNPACKA(h->h_unused1);
225 CDF_UNPACK(h->h_min_size_standard_stream);
226 CDF_UNPACK(h->h_secid_first_sector_in_short_sat);
227 CDF_UNPACK(h->h_num_sectors_in_short_sat);
228 CDF_UNPACK(h->h_secid_first_sector_in_master_sat);
229 CDF_UNPACK(h->h_num_sectors_in_master_sat);
230 for (i = 0; i < __arraycount(h->h_master_sat); i++)
231 CDF_UNPACK(h->h_master_sat[i]);
232 }
233
234 void
cdf_swap_dir(cdf_directory_t * d)235 cdf_swap_dir(cdf_directory_t *d)
236 {
237 d->d_namelen = CDF_TOLE2(d->d_namelen);
238 d->d_left_child = CDF_TOLE4((uint32_t)d->d_left_child);
239 d->d_right_child = CDF_TOLE4((uint32_t)d->d_right_child);
240 d->d_storage = CDF_TOLE4((uint32_t)d->d_storage);
241 d->d_storage_uuid[0] = CDF_TOLE8(d->d_storage_uuid[0]);
242 d->d_storage_uuid[1] = CDF_TOLE8(d->d_storage_uuid[1]);
243 d->d_flags = CDF_TOLE4(d->d_flags);
244 d->d_created = CDF_TOLE8((uint64_t)d->d_created);
245 d->d_modified = CDF_TOLE8((uint64_t)d->d_modified);
246 d->d_stream_first_sector = CDF_TOLE4((uint32_t)d->d_stream_first_sector);
247 d->d_size = CDF_TOLE4(d->d_size);
248 }
249
250 void
cdf_swap_class(cdf_classid_t * d)251 cdf_swap_class(cdf_classid_t *d)
252 {
253 d->cl_dword = CDF_TOLE4(d->cl_dword);
254 d->cl_word[0] = CDF_TOLE2(d->cl_word[0]);
255 d->cl_word[1] = CDF_TOLE2(d->cl_word[1]);
256 }
257
258 void
cdf_unpack_dir(cdf_directory_t * d,char * buf)259 cdf_unpack_dir(cdf_directory_t *d, char *buf)
260 {
261 size_t len = 0;
262
263 CDF_UNPACKA(d->d_name);
264 CDF_UNPACK(d->d_namelen);
265 CDF_UNPACK(d->d_type);
266 CDF_UNPACK(d->d_color);
267 CDF_UNPACK(d->d_left_child);
268 CDF_UNPACK(d->d_right_child);
269 CDF_UNPACK(d->d_storage);
270 CDF_UNPACKA(d->d_storage_uuid);
271 CDF_UNPACK(d->d_flags);
272 CDF_UNPACK(d->d_created);
273 CDF_UNPACK(d->d_modified);
274 CDF_UNPACK(d->d_stream_first_sector);
275 CDF_UNPACK(d->d_size);
276 CDF_UNPACK(d->d_unused0);
277 }
278
279 static int
cdf_check_stream_offset(const cdf_stream_t * sst,const cdf_header_t * h,const void * p,size_t tail,int line)280 cdf_check_stream_offset(const cdf_stream_t *sst, const cdf_header_t *h,
281 const void *p, size_t tail, int line)
282 {
283 const char *b = (const char *)sst->sst_tab;
284 const char *e = ((const char *)p) + tail;
285 size_t ss = sst->sst_dirlen < h->h_min_size_standard_stream ?
286 CDF_SHORT_SEC_SIZE(h) : CDF_SEC_SIZE(h);
287 /*LINTED*/(void)&line;
288 if (e >= b && (size_t)(e - b) <= ss * sst->sst_len)
289 return 0;
290 DPRINTF(("%d: offset begin %p < end %p || %" SIZE_T_FORMAT "u"
291 " > %" SIZE_T_FORMAT "u [%" SIZE_T_FORMAT "u %"
292 SIZE_T_FORMAT "u]\n", line, b, e, (size_t)(e - b),
293 ss * sst->sst_len, ss, sst->sst_len));
294 errno = EFTYPE;
295 return -1;
296 }
297
298 static ssize_t
cdf_read(const cdf_info_t * info,zend_off_t off,void * buf,size_t len)299 cdf_read(const cdf_info_t *info, zend_off_t off, void *buf, size_t len)
300 {
301 size_t siz = (size_t)off + len;
302
303 if ((zend_off_t)(off + len) != (zend_off_t)siz) {
304 errno = EINVAL;
305 return -1;
306 }
307
308 if (info->i_buf != NULL && info->i_len >= siz) {
309 (void)memcpy(buf, &info->i_buf[off], len);
310 return (ssize_t)len;
311 }
312
313 if (info->i_fd == -1)
314 return -1;
315
316 if (FINFO_LSEEK_FUNC(info->i_fd, off, SEEK_SET) == (zend_off_t)-1)
317 return -1;
318
319 if (FINFO_READ_FUNC(info->i_fd, buf, len) != (ssize_t)len)
320 return -1;
321
322 return (ssize_t)len;
323 }
324
325 int
cdf_read_header(const cdf_info_t * info,cdf_header_t * h)326 cdf_read_header(const cdf_info_t *info, cdf_header_t *h)
327 {
328 char buf[512];
329
330 (void)memcpy(cdf_bo.s, "\01\02\03\04", 4);
331 if (cdf_read(info, (zend_off_t)0, buf, sizeof(buf)) == -1)
332 return -1;
333 cdf_unpack_header(h, buf);
334 cdf_swap_header(h);
335 if (h->h_magic != CDF_MAGIC) {
336 DPRINTF(("Bad magic 0x%" INT64_T_FORMAT "x != 0x%"
337 INT64_T_FORMAT "x\n",
338 (unsigned long long)h->h_magic,
339 (unsigned long long)CDF_MAGIC));
340 goto out;
341 }
342 if (h->h_sec_size_p2 > 20) {
343 DPRINTF(("Bad sector size 0x%u\n", h->h_sec_size_p2));
344 goto out;
345 }
346 if (h->h_short_sec_size_p2 > 20) {
347 DPRINTF(("Bad short sector size 0x%u\n",
348 h->h_short_sec_size_p2));
349 goto out;
350 }
351 return 0;
352 out:
353 errno = EFTYPE;
354 return -1;
355 }
356
357
358 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)359 cdf_read_sector(const cdf_info_t *info, void *buf, size_t offs, size_t len,
360 const cdf_header_t *h, cdf_secid_t id)
361 {
362 size_t ss = CDF_SEC_SIZE(h);
363 size_t pos = CDF_SEC_POS(h, id);
364 assert(ss == len);
365 return cdf_read(info, (zend_off_t)pos, ((char *)buf) + offs, len);
366 }
367
368 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)369 cdf_read_short_sector(const cdf_stream_t *sst, void *buf, size_t offs,
370 size_t len, const cdf_header_t *h, cdf_secid_t id)
371 {
372 size_t ss = CDF_SHORT_SEC_SIZE(h);
373 size_t pos = CDF_SHORT_SEC_POS(h, id);
374 assert(ss == len);
375 if (pos + len > CDF_SEC_SIZE(h) * sst->sst_len) {
376 DPRINTF(("Out of bounds read %" SIZE_T_FORMAT "u > %"
377 SIZE_T_FORMAT "u\n",
378 pos + len, CDF_SEC_SIZE(h) * sst->sst_len));
379 return -1;
380 }
381 (void)memcpy(((char *)buf) + offs,
382 ((const char *)sst->sst_tab) + pos, len);
383 return len;
384 }
385
386 /*
387 * Read the sector allocation table.
388 */
389 int
cdf_read_sat(const cdf_info_t * info,cdf_header_t * h,cdf_sat_t * sat)390 cdf_read_sat(const cdf_info_t *info, cdf_header_t *h, cdf_sat_t *sat)
391 {
392 size_t i, j, k;
393 size_t ss = CDF_SEC_SIZE(h);
394 cdf_secid_t *msa, mid, sec;
395 size_t nsatpersec = (ss / sizeof(mid)) - 1;
396
397 for (i = 0; i < __arraycount(h->h_master_sat); i++)
398 if (h->h_master_sat[i] == CDF_SECID_FREE)
399 break;
400
401 #define CDF_SEC_LIMIT (UINT32_MAX / (4 * ss))
402 if ((nsatpersec > 0 &&
403 h->h_num_sectors_in_master_sat > CDF_SEC_LIMIT / nsatpersec) ||
404 i > CDF_SEC_LIMIT) {
405 DPRINTF(("Number of sectors in master SAT too big %u %"
406 SIZE_T_FORMAT "u\n", h->h_num_sectors_in_master_sat, i));
407 errno = EFTYPE;
408 return -1;
409 }
410
411 sat->sat_len = h->h_num_sectors_in_master_sat * nsatpersec + i;
412 DPRINTF(("sat_len = %" SIZE_T_FORMAT "u ss = %" SIZE_T_FORMAT "u\n",
413 sat->sat_len, ss));
414 if ((sat->sat_tab = CAST(cdf_secid_t *, calloc(sat->sat_len, ss)))
415 == NULL)
416 return -1;
417
418 for (i = 0; i < __arraycount(h->h_master_sat); i++) {
419 if (h->h_master_sat[i] < 0)
420 break;
421 if (cdf_read_sector(info, sat->sat_tab, ss * i, ss, h,
422 h->h_master_sat[i]) != (ssize_t)ss) {
423 DPRINTF(("Reading sector %d", h->h_master_sat[i]));
424 goto out1;
425 }
426 }
427
428 if ((msa = CAST(cdf_secid_t *, calloc(1, ss))) == NULL)
429 goto out1;
430
431 mid = h->h_secid_first_sector_in_master_sat;
432 for (j = 0; j < h->h_num_sectors_in_master_sat; j++) {
433 if (mid < 0)
434 goto out;
435 if (j >= CDF_LOOP_LIMIT) {
436 DPRINTF(("Reading master sector loop limit"));
437 errno = EFTYPE;
438 goto out2;
439 }
440 if (cdf_read_sector(info, msa, 0, ss, h, mid) != (ssize_t)ss) {
441 DPRINTF(("Reading master sector %d", mid));
442 goto out2;
443 }
444 for (k = 0; k < nsatpersec; k++, i++) {
445 sec = CDF_TOLE4((uint32_t)msa[k]);
446 if (sec < 0)
447 goto out;
448 if (i >= sat->sat_len) {
449 DPRINTF(("Out of bounds reading MSA %" SIZE_T_FORMAT
450 "u >= %" SIZE_T_FORMAT "u", i, sat->sat_len));
451 errno = EFTYPE;
452 goto out2;
453 }
454 if (cdf_read_sector(info, sat->sat_tab, ss * i, ss, h,
455 sec) != (ssize_t)ss) {
456 DPRINTF(("Reading sector %d",
457 CDF_TOLE4(msa[k])));
458 goto out2;
459 }
460 }
461 mid = CDF_TOLE4((uint32_t)msa[nsatpersec]);
462 }
463 out:
464 sat->sat_len = i;
465 free(msa);
466 return 0;
467 out2:
468 free(msa);
469 out1:
470 free(sat->sat_tab);
471 return -1;
472 }
473
474 size_t
cdf_count_chain(const cdf_sat_t * sat,cdf_secid_t sid,size_t size)475 cdf_count_chain(const cdf_sat_t *sat, cdf_secid_t sid, size_t size)
476 {
477 size_t i, j;
478 cdf_secid_t maxsector = (cdf_secid_t)((sat->sat_len * size)
479 / sizeof(maxsector));
480
481 DPRINTF(("Chain:"));
482 if (sid == CDF_SECID_END_OF_CHAIN) {
483 /* 0-length chain. */
484 DPRINTF((" empty\n"));
485 return 0;
486 }
487
488 for (j = i = 0; sid >= 0; i++, j++) {
489 DPRINTF((" %d", sid));
490 if (j >= CDF_LOOP_LIMIT) {
491 DPRINTF(("Counting chain loop limit"));
492 errno = EFTYPE;
493 return (size_t)-1;
494 }
495 if (sid >= maxsector) {
496 DPRINTF(("Sector %d >= %d\n", sid, maxsector));
497 errno = EFTYPE;
498 return (size_t)-1;
499 }
500 sid = CDF_TOLE4((uint32_t)sat->sat_tab[sid]);
501 }
502 if (i == 0) {
503 DPRINTF((" none, sid: %d\n", sid));
504 return (size_t)-1;
505
506 }
507 DPRINTF(("\n"));
508 return i;
509 }
510
511 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)512 cdf_read_long_sector_chain(const cdf_info_t *info, const cdf_header_t *h,
513 const cdf_sat_t *sat, cdf_secid_t sid, size_t len, cdf_stream_t *scn)
514 {
515 size_t ss = CDF_SEC_SIZE(h), i, j;
516 ssize_t nr;
517 scn->sst_len = cdf_count_chain(sat, sid, ss);
518 scn->sst_dirlen = len;
519
520 if (scn->sst_len == (size_t)-1)
521 return -1;
522
523 scn->sst_tab = calloc(scn->sst_len, ss);
524 if (scn->sst_tab == NULL)
525 return -1;
526
527 for (j = i = 0; sid >= 0; i++, j++) {
528 if (j >= CDF_LOOP_LIMIT) {
529 DPRINTF(("Read long sector chain loop limit"));
530 errno = EFTYPE;
531 goto out;
532 }
533 if (i >= scn->sst_len) {
534 DPRINTF(("Out of bounds reading long sector chain "
535 "%" SIZE_T_FORMAT "u > %" SIZE_T_FORMAT "u\n", i,
536 scn->sst_len));
537 errno = EFTYPE;
538 goto out;
539 }
540 if ((nr = cdf_read_sector(info, scn->sst_tab, i * ss, ss, h,
541 sid)) != (ssize_t)ss) {
542 if (i == scn->sst_len - 1 && nr > 0) {
543 /* Last sector might be truncated */
544 return 0;
545 }
546 DPRINTF(("Reading long sector chain %d", sid));
547 goto out;
548 }
549 sid = CDF_TOLE4((uint32_t)sat->sat_tab[sid]);
550 }
551 return 0;
552 out:
553 free(scn->sst_tab);
554 return -1;
555 }
556
557 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)558 cdf_read_short_sector_chain(const cdf_header_t *h,
559 const cdf_sat_t *ssat, const cdf_stream_t *sst,
560 cdf_secid_t sid, size_t len, cdf_stream_t *scn)
561 {
562 size_t ss = CDF_SHORT_SEC_SIZE(h), i, j;
563 scn->sst_len = cdf_count_chain(ssat, sid, CDF_SEC_SIZE(h));
564 scn->sst_dirlen = len;
565
566 if (sst->sst_tab == NULL || scn->sst_len == (size_t)-1)
567 return -1;
568
569 scn->sst_tab = calloc(scn->sst_len, ss);
570 if (scn->sst_tab == NULL)
571 return -1;
572
573 for (j = i = 0; sid >= 0; i++, j++) {
574 if (j >= CDF_LOOP_LIMIT) {
575 DPRINTF(("Read short sector chain loop limit"));
576 errno = EFTYPE;
577 goto out;
578 }
579 if (i >= scn->sst_len) {
580 DPRINTF(("Out of bounds reading short sector chain "
581 "%" SIZE_T_FORMAT "u > %" SIZE_T_FORMAT "u\n",
582 i, scn->sst_len));
583 errno = EFTYPE;
584 goto out;
585 }
586 if (cdf_read_short_sector(sst, scn->sst_tab, i * ss, ss, h,
587 sid) != (ssize_t)ss) {
588 DPRINTF(("Reading short sector chain %d", sid));
589 goto out;
590 }
591 sid = CDF_TOLE4((uint32_t)ssat->sat_tab[sid]);
592 }
593 return 0;
594 out:
595 free(scn->sst_tab);
596 return -1;
597 }
598
599 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)600 cdf_read_sector_chain(const cdf_info_t *info, const cdf_header_t *h,
601 const cdf_sat_t *sat, const cdf_sat_t *ssat, const cdf_stream_t *sst,
602 cdf_secid_t sid, size_t len, cdf_stream_t *scn)
603 {
604
605 if (len < h->h_min_size_standard_stream && sst->sst_tab != NULL)
606 return cdf_read_short_sector_chain(h, ssat, sst, sid, len,
607 scn);
608 else
609 return cdf_read_long_sector_chain(info, h, sat, sid, len, scn);
610 }
611
612 int
cdf_read_dir(const cdf_info_t * info,const cdf_header_t * h,const cdf_sat_t * sat,cdf_dir_t * dir)613 cdf_read_dir(const cdf_info_t *info, const cdf_header_t *h,
614 const cdf_sat_t *sat, cdf_dir_t *dir)
615 {
616 size_t i, j;
617 size_t ss = CDF_SEC_SIZE(h), ns, nd;
618 char *buf;
619 cdf_secid_t sid = h->h_secid_first_directory;
620
621 ns = cdf_count_chain(sat, sid, ss);
622 if (ns == (size_t)-1)
623 return -1;
624
625 nd = ss / CDF_DIRECTORY_SIZE;
626
627 dir->dir_len = ns * nd;
628 dir->dir_tab = CAST(cdf_directory_t *,
629 calloc(dir->dir_len, sizeof(dir->dir_tab[0])));
630 if (dir->dir_tab == NULL)
631 return -1;
632
633 if ((buf = CAST(char *, malloc(ss))) == NULL) {
634 free(dir->dir_tab);
635 return -1;
636 }
637
638 for (j = i = 0; i < ns; i++, j++) {
639 if (j >= CDF_LOOP_LIMIT) {
640 DPRINTF(("Read dir loop limit"));
641 errno = EFTYPE;
642 goto out;
643 }
644 if (cdf_read_sector(info, buf, 0, ss, h, sid) != (ssize_t)ss) {
645 DPRINTF(("Reading directory sector %d", sid));
646 goto out;
647 }
648 for (j = 0; j < nd; j++) {
649 cdf_unpack_dir(&dir->dir_tab[i * nd + j],
650 &buf[j * CDF_DIRECTORY_SIZE]);
651 }
652 sid = CDF_TOLE4((uint32_t)sat->sat_tab[sid]);
653 }
654 if (NEED_SWAP)
655 for (i = 0; i < dir->dir_len; i++)
656 cdf_swap_dir(&dir->dir_tab[i]);
657 free(buf);
658 return 0;
659 out:
660 free(dir->dir_tab);
661 free(buf);
662 return -1;
663 }
664
665
666 int
cdf_read_ssat(const cdf_info_t * info,const cdf_header_t * h,const cdf_sat_t * sat,cdf_sat_t * ssat)667 cdf_read_ssat(const cdf_info_t *info, const cdf_header_t *h,
668 const cdf_sat_t *sat, cdf_sat_t *ssat)
669 {
670 size_t i, j;
671 size_t ss = CDF_SEC_SIZE(h);
672 cdf_secid_t sid = h->h_secid_first_sector_in_short_sat;
673
674 ssat->sat_len = cdf_count_chain(sat, sid, CDF_SEC_SIZE(h));
675 if (ssat->sat_len == (size_t)-1)
676 return -1;
677
678 ssat->sat_tab = CAST(cdf_secid_t *, calloc(ssat->sat_len, ss));
679 if (ssat->sat_tab == NULL)
680 return -1;
681
682 for (j = i = 0; sid >= 0; i++, j++) {
683 if (j >= CDF_LOOP_LIMIT) {
684 DPRINTF(("Read short sat sector loop limit"));
685 errno = EFTYPE;
686 goto out;
687 }
688 if (i >= ssat->sat_len) {
689 DPRINTF(("Out of bounds reading short sector chain "
690 "%" SIZE_T_FORMAT "u > %" SIZE_T_FORMAT "u\n", i,
691 ssat->sat_len));
692 errno = EFTYPE;
693 goto out;
694 }
695 if (cdf_read_sector(info, ssat->sat_tab, i * ss, ss, h, sid) !=
696 (ssize_t)ss) {
697 DPRINTF(("Reading short sat sector %d", sid));
698 goto out;
699 }
700 sid = CDF_TOLE4((uint32_t)sat->sat_tab[sid]);
701 }
702 return 0;
703 out:
704 free(ssat->sat_tab);
705 return -1;
706 }
707
708 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)709 cdf_read_short_stream(const cdf_info_t *info, const cdf_header_t *h,
710 const cdf_sat_t *sat, const cdf_dir_t *dir, cdf_stream_t *scn,
711 const cdf_directory_t **root)
712 {
713 size_t i;
714 const cdf_directory_t *d;
715
716 *root = NULL;
717 for (i = 0; i < dir->dir_len; i++)
718 if (dir->dir_tab[i].d_type == CDF_DIR_TYPE_ROOT_STORAGE)
719 break;
720
721 /* If the it is not there, just fake it; some docs don't have it */
722 if (i == dir->dir_len)
723 goto out;
724 d = &dir->dir_tab[i];
725 *root = d;
726
727 /* If the it is not there, just fake it; some docs don't have it */
728 if (d->d_stream_first_sector < 0)
729 goto out;
730
731 return cdf_read_long_sector_chain(info, h, sat,
732 d->d_stream_first_sector, d->d_size, scn);
733 out:
734 scn->sst_tab = NULL;
735 scn->sst_len = 0;
736 scn->sst_dirlen = 0;
737 return 0;
738 }
739
740 static int
cdf_namecmp(const char * d,const uint16_t * s,size_t l)741 cdf_namecmp(const char *d, const uint16_t *s, size_t l)
742 {
743 for (; l--; d++, s++)
744 if (*d != CDF_TOLE2(*s))
745 return (unsigned char)*d - CDF_TOLE2(*s);
746 return 0;
747 }
748
749 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)750 cdf_read_summary_info(const cdf_info_t *info, const cdf_header_t *h,
751 const cdf_sat_t *sat, const cdf_sat_t *ssat, const cdf_stream_t *sst,
752 const cdf_dir_t *dir, cdf_stream_t *scn)
753 {
754 return cdf_read_user_stream(info, h, sat, ssat, sst, dir,
755 "\05SummaryInformation", scn);
756 }
757
758 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)759 cdf_read_user_stream(const cdf_info_t *info, const cdf_header_t *h,
760 const cdf_sat_t *sat, const cdf_sat_t *ssat, const cdf_stream_t *sst,
761 const cdf_dir_t *dir, const char *name, cdf_stream_t *scn)
762 {
763 const cdf_directory_t *d;
764 int i = cdf_find_stream(dir, name, CDF_DIR_TYPE_USER_STREAM);
765
766 if (i <= 0)
767 return -1;
768
769 d = &dir->dir_tab[i - 1];
770 return cdf_read_sector_chain(info, h, sat, ssat, sst,
771 d->d_stream_first_sector, d->d_size, scn);
772 }
773
774 int
cdf_find_stream(const cdf_dir_t * dir,const char * name,int type)775 cdf_find_stream(const cdf_dir_t *dir, const char *name, int type)
776 {
777 size_t i, name_len = strlen(name) + 1;
778
779 for (i = dir->dir_len; i > 0; i--)
780 if (dir->dir_tab[i - 1].d_type == type &&
781 cdf_namecmp(name, dir->dir_tab[i - 1].d_name, name_len)
782 == 0)
783 break;
784 if (i > 0)
785 return i;
786
787 DPRINTF(("Cannot find type %d `%s'\n", type, name));
788 errno = ESRCH;
789 return 0;
790 }
791
792 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)793 cdf_read_property_info(const cdf_stream_t *sst, const cdf_header_t *h,
794 uint32_t offs, cdf_property_info_t **info, size_t *count, size_t *maxcount)
795 {
796 const cdf_section_header_t *shp;
797 cdf_section_header_t sh;
798 const uint8_t *p, *q, *e;
799 int16_t s16;
800 int32_t s32;
801 uint32_t u32;
802 int64_t s64;
803 uint64_t u64;
804 cdf_timestamp_t tp;
805 size_t i, o, o4, nelements, j;
806 cdf_property_info_t *inp;
807
808 if (offs > UINT32_MAX / 4) {
809 errno = EFTYPE;
810 goto out;
811 }
812 shp = CAST(const cdf_section_header_t *, (const void *)
813 ((const char *)sst->sst_tab + offs));
814 if (cdf_check_stream_offset(sst, h, shp, sizeof(*shp), __LINE__) == -1)
815 goto out;
816 sh.sh_len = CDF_TOLE4(shp->sh_len);
817 #define CDF_SHLEN_LIMIT (UINT32_MAX / 8)
818 if (sh.sh_len > CDF_SHLEN_LIMIT) {
819 errno = EFTYPE;
820 goto out;
821 }
822 sh.sh_properties = CDF_TOLE4(shp->sh_properties);
823 #define CDF_PROP_LIMIT (UINT32_MAX / (4 * sizeof(*inp)))
824 if (sh.sh_properties > CDF_PROP_LIMIT)
825 goto out;
826 DPRINTF(("section len: %u properties %u\n", sh.sh_len,
827 sh.sh_properties));
828 if (*maxcount) {
829 if (*maxcount > CDF_PROP_LIMIT)
830 goto out;
831 *maxcount += sh.sh_properties;
832 inp = CAST(cdf_property_info_t *,
833 realloc(*info, *maxcount * sizeof(*inp)));
834 } else {
835 *maxcount = sh.sh_properties;
836 inp = CAST(cdf_property_info_t *,
837 malloc(*maxcount * sizeof(*inp)));
838 }
839 if (inp == NULL)
840 goto out;
841 *info = inp;
842 inp += *count;
843 *count += sh.sh_properties;
844 p = CAST(const uint8_t *, (const void *)
845 ((const char *)(const void *)sst->sst_tab +
846 offs + sizeof(sh)));
847 e = CAST(const uint8_t *, (const void *)
848 (((const char *)(const void *)shp) + sh.sh_len));
849 if (cdf_check_stream_offset(sst, h, e, 0, __LINE__) == -1)
850 goto out;
851 for (i = 0; i < sh.sh_properties; i++) {
852 size_t tail = (i << 1) + 1;
853 size_t ofs;
854 if (cdf_check_stream_offset(sst, h, p, tail * sizeof(uint32_t),
855 __LINE__) == -1)
856 goto out;
857 ofs = CDF_GETUINT32(p, tail);
858 q = (const uint8_t *)(const void *)
859 ((const char *)(const void *)p + ofs
860 - 2 * sizeof(uint32_t));
861 if (q < p) {
862 DPRINTF(("Wrapped around %p < %p\n", q, p));
863 goto out;
864 }
865 if (q > e) {
866 DPRINTF(("Ran of the end %p > %p\n", q, e));
867 goto out;
868 }
869 inp[i].pi_id = CDF_GETUINT32(p, i << 1);
870 inp[i].pi_type = CDF_GETUINT32(q, 0);
871 DPRINTF(("%" SIZE_T_FORMAT "u) id=%x type=%x offs=0x%tx,0x%x\n",
872 i, inp[i].pi_id, inp[i].pi_type, q - p, offs));
873 if (inp[i].pi_type & CDF_VECTOR) {
874 nelements = CDF_GETUINT32(q, 1);
875 if (nelements > CDF_ELEMENT_LIMIT || nelements == 0) {
876 DPRINTF(("CDF_VECTOR with nelements == %"
877 SIZE_T_FORMAT "u\n", nelements));
878 goto out;
879 }
880 o = 2;
881 } else {
882 nelements = 1;
883 o = 1;
884 }
885 o4 = o * sizeof(uint32_t);
886 if (inp[i].pi_type & (CDF_ARRAY|CDF_BYREF|CDF_RESERVED))
887 goto unknown;
888 switch (inp[i].pi_type & CDF_TYPEMASK) {
889 case CDF_NULL:
890 case CDF_EMPTY:
891 break;
892 case CDF_SIGNED16:
893 if (inp[i].pi_type & CDF_VECTOR)
894 goto unknown;
895 (void)memcpy(&s16, &q[o4], sizeof(s16));
896 inp[i].pi_s16 = CDF_TOLE2(s16);
897 break;
898 case CDF_SIGNED32:
899 if (inp[i].pi_type & CDF_VECTOR)
900 goto unknown;
901 (void)memcpy(&s32, &q[o4], sizeof(s32));
902 inp[i].pi_s32 = CDF_TOLE4((uint32_t)s32);
903 break;
904 case CDF_BOOL:
905 case CDF_UNSIGNED32:
906 if (inp[i].pi_type & CDF_VECTOR)
907 goto unknown;
908 (void)memcpy(&u32, &q[o4], sizeof(u32));
909 inp[i].pi_u32 = CDF_TOLE4(u32);
910 break;
911 case CDF_SIGNED64:
912 if (inp[i].pi_type & CDF_VECTOR)
913 goto unknown;
914 (void)memcpy(&s64, &q[o4], sizeof(s64));
915 inp[i].pi_s64 = CDF_TOLE8((uint64_t)s64);
916 break;
917 case CDF_UNSIGNED64:
918 if (inp[i].pi_type & CDF_VECTOR)
919 goto unknown;
920 (void)memcpy(&u64, &q[o4], sizeof(u64));
921 inp[i].pi_u64 = CDF_TOLE8((uint64_t)u64);
922 break;
923 case CDF_FLOAT:
924 if (inp[i].pi_type & CDF_VECTOR)
925 goto unknown;
926 (void)memcpy(&u32, &q[o4], sizeof(u32));
927 u32 = CDF_TOLE4(u32);
928 memcpy(&inp[i].pi_f, &u32, sizeof(inp[i].pi_f));
929 break;
930 case CDF_DOUBLE:
931 if (inp[i].pi_type & CDF_VECTOR)
932 goto unknown;
933 (void)memcpy(&u64, &q[o4], sizeof(u64));
934 u64 = CDF_TOLE8((uint64_t)u64);
935 memcpy(&inp[i].pi_d, &u64, sizeof(inp[i].pi_d));
936 break;
937 case CDF_LENGTH32_STRING:
938 case CDF_LENGTH32_WSTRING:
939 if (nelements > 1) {
940 size_t nelem = inp - *info;
941 if (*maxcount > CDF_PROP_LIMIT
942 || nelements > CDF_PROP_LIMIT)
943 goto out;
944 *maxcount += nelements;
945 inp = CAST(cdf_property_info_t *,
946 realloc(*info, *maxcount * sizeof(*inp)));
947 if (inp == NULL)
948 goto out;
949 *info = inp;
950 inp = *info + nelem;
951 }
952 for (j = 0; j < nelements && i < sh.sh_properties;
953 j++, i++)
954 {
955 uint32_t l = CDF_GETUINT32(q, o);
956 inp[i].pi_str.s_len = l;
957 inp[i].pi_str.s_buf = (const char *)
958 (const void *)(&q[o4 + sizeof(l)]);
959 DPRINTF(("l = %d, r = %" SIZE_T_FORMAT
960 "u, s = %s\n", l,
961 CDF_ROUND(l, sizeof(l)),
962 inp[i].pi_str.s_buf));
963 if (l & 1)
964 l++;
965 o += l >> 1;
966 if (q + o >= e)
967 goto out;
968 o4 = o * sizeof(uint32_t);
969 }
970 i--;
971 break;
972 case CDF_FILETIME:
973 if (inp[i].pi_type & CDF_VECTOR)
974 goto unknown;
975 (void)memcpy(&tp, &q[o4], sizeof(tp));
976 inp[i].pi_tp = CDF_TOLE8((uint64_t)tp);
977 break;
978 case CDF_CLIPBOARD:
979 if (inp[i].pi_type & CDF_VECTOR)
980 goto unknown;
981 break;
982 default:
983 unknown:
984 DPRINTF(("Don't know how to deal with %x\n",
985 inp[i].pi_type));
986 break;
987 }
988 }
989 return 0;
990 out:
991 free(*info);
992 return -1;
993 }
994
995 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)996 cdf_unpack_summary_info(const cdf_stream_t *sst, const cdf_header_t *h,
997 cdf_summary_info_header_t *ssi, cdf_property_info_t **info, size_t *count)
998 {
999 size_t maxcount;
1000 const cdf_summary_info_header_t *si =
1001 CAST(const cdf_summary_info_header_t *, sst->sst_tab);
1002 const cdf_section_declaration_t *sd =
1003 CAST(const cdf_section_declaration_t *, (const void *)
1004 ((const char *)sst->sst_tab + CDF_SECTION_DECLARATION_OFFSET));
1005
1006 if (cdf_check_stream_offset(sst, h, si, sizeof(*si), __LINE__) == -1 ||
1007 cdf_check_stream_offset(sst, h, sd, sizeof(*sd), __LINE__) == -1)
1008 return -1;
1009 ssi->si_byte_order = CDF_TOLE2(si->si_byte_order);
1010 ssi->si_os_version = CDF_TOLE2(si->si_os_version);
1011 ssi->si_os = CDF_TOLE2(si->si_os);
1012 ssi->si_class = si->si_class;
1013 cdf_swap_class(&ssi->si_class);
1014 ssi->si_count = CDF_TOLE4(si->si_count);
1015 *count = 0;
1016 maxcount = 0;
1017 *info = NULL;
1018 if (cdf_read_property_info(sst, h, CDF_TOLE4(sd->sd_offset), info,
1019 count, &maxcount) == -1)
1020 return -1;
1021 return 0;
1022 }
1023
1024
1025 #define extract_catalog_field(t, f, l) \
1026 if (b + l + sizeof(cep->f) > eb) { \
1027 cep->ce_namlen = 0; \
1028 break; \
1029 } \
1030 memcpy(&cep->f, b + (l), sizeof(cep->f)); \
1031 ce[i].f = CAST(t, CDF_TOLE(cep->f))
1032
1033 int
cdf_unpack_catalog(const cdf_header_t * h,const cdf_stream_t * sst,cdf_catalog_t ** cat)1034 cdf_unpack_catalog(const cdf_header_t *h, const cdf_stream_t *sst,
1035 cdf_catalog_t **cat)
1036 {
1037 size_t ss = sst->sst_dirlen < h->h_min_size_standard_stream ?
1038 CDF_SHORT_SEC_SIZE(h) : CDF_SEC_SIZE(h);
1039 const char *b = CAST(const char *, sst->sst_tab);
1040 const char *eb = b + ss * sst->sst_len;
1041 size_t nr, i, k;
1042 cdf_catalog_entry_t *ce;
1043 uint16_t reclen;
1044 const uint16_t *np;
1045
1046 for (nr = 0; b < eb; nr++) {
1047 memcpy(&reclen, b, sizeof(reclen));
1048 reclen = CDF_TOLE2(reclen);
1049 if (reclen == 0)
1050 break;
1051 b += reclen;
1052 }
1053 *cat = CAST(cdf_catalog_t *,
1054 malloc(sizeof(cdf_catalog_t) + nr * sizeof(*ce)));
1055 (*cat)->cat_num = nr;
1056 ce = (*cat)->cat_e;
1057 memset(ce, 0, nr * sizeof(*ce));
1058 b = CAST(const char *, sst->sst_tab);
1059 for (i = 0; i < nr; i++, b += reclen) {
1060 cdf_catalog_entry_t *cep = &ce[i];
1061 uint16_t rlen;
1062
1063 extract_catalog_field(uint16_t, ce_namlen, 0);
1064 extract_catalog_field(uint16_t, ce_num, 2);
1065 extract_catalog_field(uint64_t, ce_timestamp, 6);
1066 reclen = cep->ce_namlen;
1067
1068 if (reclen < 14) {
1069 cep->ce_namlen = 0;
1070 continue;
1071 }
1072
1073 cep->ce_namlen = __arraycount(cep->ce_name) - 1;
1074 rlen = reclen - 14;
1075 if (cep->ce_namlen > rlen)
1076 cep->ce_namlen = rlen;
1077
1078 np = CAST(const uint16_t *, CAST(const void *, (b + 16)));
1079 if (CAST(const char *, np + cep->ce_namlen) > eb) {
1080 cep->ce_namlen = 0;
1081 break;
1082 }
1083
1084 for (k = 0; k < cep->ce_namlen; k++)
1085 cep->ce_name[k] = np[k]; /* XXX: CDF_TOLE2? */
1086 cep->ce_name[cep->ce_namlen] = 0;
1087 }
1088 return 0;
1089 }
1090
1091 int
cdf_print_classid(char * buf,size_t buflen,const cdf_classid_t * id)1092 cdf_print_classid(char *buf, size_t buflen, const cdf_classid_t *id)
1093 {
1094 return snprintf(buf, buflen, "%.8x-%.4x-%.4x-%.2x%.2x-"
1095 "%.2x%.2x%.2x%.2x%.2x%.2x", id->cl_dword, id->cl_word[0],
1096 id->cl_word[1], id->cl_two[0], id->cl_two[1], id->cl_six[0],
1097 id->cl_six[1], id->cl_six[2], id->cl_six[3], id->cl_six[4],
1098 id->cl_six[5]);
1099 }
1100
1101 static const struct {
1102 uint32_t v;
1103 const char *n;
1104 } vn[] = {
1105 { CDF_PROPERTY_CODE_PAGE, "Code page" },
1106 { CDF_PROPERTY_TITLE, "Title" },
1107 { CDF_PROPERTY_SUBJECT, "Subject" },
1108 { CDF_PROPERTY_AUTHOR, "Author" },
1109 { CDF_PROPERTY_KEYWORDS, "Keywords" },
1110 { CDF_PROPERTY_COMMENTS, "Comments" },
1111 { CDF_PROPERTY_TEMPLATE, "Template" },
1112 { CDF_PROPERTY_LAST_SAVED_BY, "Last Saved By" },
1113 { CDF_PROPERTY_REVISION_NUMBER, "Revision Number" },
1114 { CDF_PROPERTY_TOTAL_EDITING_TIME, "Total Editing Time" },
1115 { CDF_PROPERTY_LAST_PRINTED, "Last Printed" },
1116 { CDF_PROPERTY_CREATE_TIME, "Create Time/Date" },
1117 { CDF_PROPERTY_LAST_SAVED_TIME, "Last Saved Time/Date" },
1118 { CDF_PROPERTY_NUMBER_OF_PAGES, "Number of Pages" },
1119 { CDF_PROPERTY_NUMBER_OF_WORDS, "Number of Words" },
1120 { CDF_PROPERTY_NUMBER_OF_CHARACTERS, "Number of Characters" },
1121 { CDF_PROPERTY_THUMBNAIL, "Thumbnail" },
1122 { CDF_PROPERTY_NAME_OF_APPLICATION, "Name of Creating Application" },
1123 { CDF_PROPERTY_SECURITY, "Security" },
1124 { CDF_PROPERTY_LOCALE_ID, "Locale ID" },
1125 };
1126
1127 int
cdf_print_property_name(char * buf,size_t bufsiz,uint32_t p)1128 cdf_print_property_name(char *buf, size_t bufsiz, uint32_t p)
1129 {
1130 size_t i;
1131
1132 for (i = 0; i < __arraycount(vn); i++)
1133 if (vn[i].v == p)
1134 return snprintf(buf, bufsiz, "%s", vn[i].n);
1135 return snprintf(buf, bufsiz, "0x%x", p);
1136 }
1137
1138 int
cdf_print_elapsed_time(char * buf,size_t bufsiz,cdf_timestamp_t ts)1139 cdf_print_elapsed_time(char *buf, size_t bufsiz, cdf_timestamp_t ts)
1140 {
1141 int len = 0;
1142 int days, hours, mins, secs;
1143
1144 ts /= CDF_TIME_PREC;
1145 secs = (int)(ts % 60);
1146 ts /= 60;
1147 mins = (int)(ts % 60);
1148 ts /= 60;
1149 hours = (int)(ts % 24);
1150 ts /= 24;
1151 days = (int)ts;
1152
1153 if (days) {
1154 len += snprintf(buf + len, bufsiz - len, "%dd+", days);
1155 if ((size_t)len >= bufsiz)
1156 return len;
1157 }
1158
1159 if (days || hours) {
1160 len += snprintf(buf + len, bufsiz - len, "%.2d:", hours);
1161 if ((size_t)len >= bufsiz)
1162 return len;
1163 }
1164
1165 len += snprintf(buf + len, bufsiz - len, "%.2d:", mins);
1166 if ((size_t)len >= bufsiz)
1167 return len;
1168
1169 len += snprintf(buf + len, bufsiz - len, "%.2d", secs);
1170 return len;
1171 }
1172
1173 char *
cdf_u16tos8(char * buf,size_t len,const uint16_t * p)1174 cdf_u16tos8(char *buf, size_t len, const uint16_t *p)
1175 {
1176 size_t i;
1177 for (i = 0; i < len && p[i]; i++)
1178 buf[i] = (char)p[i];
1179 buf[i] = '\0';
1180 return buf;
1181 }
1182
1183 #ifdef CDF_DEBUG
1184 void
cdf_dump_header(const cdf_header_t * h)1185 cdf_dump_header(const cdf_header_t *h)
1186 {
1187 size_t i;
1188
1189 #define DUMP(a, b) (void)fprintf(stderr, "%40.40s = " a "\n", # b, h->h_ ## b)
1190 #define DUMP2(a, b) (void)fprintf(stderr, "%40.40s = " a " (" a ")\n", # b, \
1191 h->h_ ## b, 1 << h->h_ ## b)
1192 DUMP("%d", revision);
1193 DUMP("%d", version);
1194 DUMP("0x%x", byte_order);
1195 DUMP2("%d", sec_size_p2);
1196 DUMP2("%d", short_sec_size_p2);
1197 DUMP("%d", num_sectors_in_sat);
1198 DUMP("%d", secid_first_directory);
1199 DUMP("%d", min_size_standard_stream);
1200 DUMP("%d", secid_first_sector_in_short_sat);
1201 DUMP("%d", num_sectors_in_short_sat);
1202 DUMP("%d", secid_first_sector_in_master_sat);
1203 DUMP("%d", num_sectors_in_master_sat);
1204 for (i = 0; i < __arraycount(h->h_master_sat); i++) {
1205 if (h->h_master_sat[i] == CDF_SECID_FREE)
1206 break;
1207 (void)fprintf(stderr, "%35.35s[%.3" SIZE_T_FORMAT "u] = %d\n",
1208 "master_sat", i, h->h_master_sat[i]);
1209 }
1210 }
1211
1212 void
cdf_dump_sat(const char * prefix,const cdf_sat_t * sat,size_t size)1213 cdf_dump_sat(const char *prefix, const cdf_sat_t *sat, size_t size)
1214 {
1215 size_t i, j, s = size / sizeof(cdf_secid_t);
1216
1217 for (i = 0; i < sat->sat_len; i++) {
1218 (void)fprintf(stderr, "%s[%" SIZE_T_FORMAT "u]:\n%.6"
1219 SIZE_T_FORMAT "u: ", prefix, i, i * s);
1220 for (j = 0; j < s; j++) {
1221 (void)fprintf(stderr, "%5d, ",
1222 CDF_TOLE4(sat->sat_tab[s * i + j]));
1223 if ((j + 1) % 10 == 0)
1224 (void)fprintf(stderr, "\n%.6" SIZE_T_FORMAT
1225 "u: ", i * s + j + 1);
1226 }
1227 (void)fprintf(stderr, "\n");
1228 }
1229 }
1230
1231 void
cdf_dump(const void * v,size_t len)1232 cdf_dump(const void *v, size_t len)
1233 {
1234 size_t i, j;
1235 const unsigned char *p = v;
1236 char abuf[16];
1237
1238 (void)fprintf(stderr, "%.4x: ", 0);
1239 for (i = 0, j = 0; i < len; i++, p++) {
1240 (void)fprintf(stderr, "%.2x ", *p);
1241 abuf[j++] = isprint(*p) ? *p : '.';
1242 if (j == 16) {
1243 j = 0;
1244 abuf[15] = '\0';
1245 (void)fprintf(stderr, "%s\n%.4" SIZE_T_FORMAT "x: ",
1246 abuf, i + 1);
1247 }
1248 }
1249 (void)fprintf(stderr, "\n");
1250 }
1251
1252 void
cdf_dump_stream(const cdf_header_t * h,const cdf_stream_t * sst)1253 cdf_dump_stream(const cdf_header_t *h, const cdf_stream_t *sst)
1254 {
1255 size_t ss = sst->sst_dirlen < h->h_min_size_standard_stream ?
1256 CDF_SHORT_SEC_SIZE(h) : CDF_SEC_SIZE(h);
1257 cdf_dump(sst->sst_tab, ss * sst->sst_len);
1258 }
1259
1260 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)1261 cdf_dump_dir(const cdf_info_t *info, const cdf_header_t *h,
1262 const cdf_sat_t *sat, const cdf_sat_t *ssat, const cdf_stream_t *sst,
1263 const cdf_dir_t *dir)
1264 {
1265 size_t i, j;
1266 cdf_directory_t *d;
1267 char name[__arraycount(d->d_name)];
1268 cdf_stream_t scn;
1269 struct timeval ts;
1270
1271 static const char *types[] = { "empty", "user storage",
1272 "user stream", "lockbytes", "property", "root storage" };
1273
1274 for (i = 0; i < dir->dir_len; i++) {
1275 char buf[26];
1276 d = &dir->dir_tab[i];
1277 for (j = 0; j < sizeof(name); j++)
1278 name[j] = (char)CDF_TOLE2(d->d_name[j]);
1279 (void)fprintf(stderr, "Directory %" SIZE_T_FORMAT "u: %s\n",
1280 i, name);
1281 if (d->d_type < __arraycount(types))
1282 (void)fprintf(stderr, "Type: %s\n", types[d->d_type]);
1283 else
1284 (void)fprintf(stderr, "Type: %d\n", d->d_type);
1285 (void)fprintf(stderr, "Color: %s\n",
1286 d->d_color ? "black" : "red");
1287 (void)fprintf(stderr, "Left child: %d\n", d->d_left_child);
1288 (void)fprintf(stderr, "Right child: %d\n", d->d_right_child);
1289 (void)fprintf(stderr, "Flags: 0x%x\n", d->d_flags);
1290 cdf_timestamp_to_timespec(&ts, d->d_created);
1291 (void)fprintf(stderr, "Created %s", cdf_ctime(&ts.tv_sec, buf));
1292 cdf_timestamp_to_timespec(&ts, d->d_modified);
1293 (void)fprintf(stderr, "Modified %s",
1294 cdf_ctime(&ts.tv_sec, buf));
1295 (void)fprintf(stderr, "Stream %d\n", d->d_stream_first_sector);
1296 (void)fprintf(stderr, "Size %d\n", d->d_size);
1297 switch (d->d_type) {
1298 case CDF_DIR_TYPE_USER_STORAGE:
1299 (void)fprintf(stderr, "Storage: %d\n", d->d_storage);
1300 break;
1301 case CDF_DIR_TYPE_USER_STREAM:
1302 if (sst == NULL)
1303 break;
1304 if (cdf_read_sector_chain(info, h, sat, ssat, sst,
1305 d->d_stream_first_sector, d->d_size, &scn) == -1) {
1306 warn("Can't read stream for %s at %d len %d",
1307 name, d->d_stream_first_sector, d->d_size);
1308 break;
1309 }
1310 cdf_dump_stream(h, &scn);
1311 free(scn.sst_tab);
1312 break;
1313 default:
1314 break;
1315 }
1316
1317 }
1318 }
1319
1320 void
cdf_dump_property_info(const cdf_property_info_t * info,size_t count)1321 cdf_dump_property_info(const cdf_property_info_t *info, size_t count)
1322 {
1323 cdf_timestamp_t tp;
1324 struct timeval ts;
1325 char buf[64];
1326 size_t i, j;
1327
1328 for (i = 0; i < count; i++) {
1329 cdf_print_property_name(buf, sizeof(buf), info[i].pi_id);
1330 (void)fprintf(stderr, "%" SIZE_T_FORMAT "u) %s: ", i, buf);
1331 switch (info[i].pi_type) {
1332 case CDF_NULL:
1333 break;
1334 case CDF_SIGNED16:
1335 (void)fprintf(stderr, "signed 16 [%hd]\n",
1336 info[i].pi_s16);
1337 break;
1338 case CDF_SIGNED32:
1339 (void)fprintf(stderr, "signed 32 [%d]\n",
1340 info[i].pi_s32);
1341 break;
1342 case CDF_UNSIGNED32:
1343 (void)fprintf(stderr, "unsigned 32 [%u]\n",
1344 info[i].pi_u32);
1345 break;
1346 case CDF_FLOAT:
1347 (void)fprintf(stderr, "float [%g]\n",
1348 info[i].pi_f);
1349 break;
1350 case CDF_DOUBLE:
1351 (void)fprintf(stderr, "double [%g]\n",
1352 info[i].pi_d);
1353 break;
1354 case CDF_LENGTH32_STRING:
1355 (void)fprintf(stderr, "string %u [%.*s]\n",
1356 info[i].pi_str.s_len,
1357 info[i].pi_str.s_len, info[i].pi_str.s_buf);
1358 break;
1359 case CDF_LENGTH32_WSTRING:
1360 (void)fprintf(stderr, "string %u [",
1361 info[i].pi_str.s_len);
1362 for (j = 0; j < info[i].pi_str.s_len - 1; j++)
1363 (void)fputc(info[i].pi_str.s_buf[j << 1], stderr);
1364 (void)fprintf(stderr, "]\n");
1365 break;
1366 case CDF_FILETIME:
1367 tp = info[i].pi_tp;
1368 if (tp < 1000000000000000LL) {
1369 cdf_print_elapsed_time(buf, sizeof(buf), tp);
1370 (void)fprintf(stderr, "timestamp %s\n", buf);
1371 } else {
1372 char tbuf[26];
1373 cdf_timestamp_to_timespec(&ts, tp);
1374 (void)fprintf(stderr, "timestamp %s",
1375 cdf_ctime(&ts.tv_sec, tbuf));
1376 }
1377 break;
1378 case CDF_CLIPBOARD:
1379 (void)fprintf(stderr, "CLIPBOARD %u\n", info[i].pi_u32);
1380 break;
1381 default:
1382 DPRINTF(("Don't know how to deal with %x\n",
1383 info[i].pi_type));
1384 break;
1385 }
1386 }
1387 }
1388
1389
1390 void
cdf_dump_summary_info(const cdf_header_t * h,const cdf_stream_t * sst)1391 cdf_dump_summary_info(const cdf_header_t *h, const cdf_stream_t *sst)
1392 {
1393 char buf[128];
1394 cdf_summary_info_header_t ssi;
1395 cdf_property_info_t *info;
1396 size_t count;
1397
1398 (void)&h;
1399 if (cdf_unpack_summary_info(sst, h, &ssi, &info, &count) == -1)
1400 return;
1401 (void)fprintf(stderr, "Endian: %x\n", ssi.si_byte_order);
1402 (void)fprintf(stderr, "Os Version %d.%d\n", ssi.si_os_version & 0xff,
1403 ssi.si_os_version >> 8);
1404 (void)fprintf(stderr, "Os %d\n", ssi.si_os);
1405 cdf_print_classid(buf, sizeof(buf), &ssi.si_class);
1406 (void)fprintf(stderr, "Class %s\n", buf);
1407 (void)fprintf(stderr, "Count %d\n", ssi.si_count);
1408 cdf_dump_property_info(info, count);
1409 free(info);
1410 }
1411
1412
1413 void
cdf_dump_catalog(const cdf_header_t * h,const cdf_stream_t * sst)1414 cdf_dump_catalog(const cdf_header_t *h, const cdf_stream_t *sst)
1415 {
1416 cdf_catalog_t *cat;
1417 cdf_unpack_catalog(h, sst, &cat);
1418 const cdf_catalog_entry_t *ce = cat->cat_e;
1419 struct timespec ts;
1420 char tbuf[64], sbuf[256];
1421 size_t i;
1422
1423 printf("Catalog:\n");
1424 for (i = 0; i < cat->cat_num; i++) {
1425 cdf_timestamp_to_timespec(&ts, ce[i].ce_timestamp);
1426 printf("\t%d %s %s", ce[i].ce_num,
1427 cdf_u16tos8(sbuf, ce[i].ce_namlen, ce[i].ce_name),
1428 cdf_ctime(&ts.tv_sec, tbuf));
1429 }
1430 free(cat);
1431 }
1432
1433 #endif
1434
1435 #ifdef TEST
1436 int
main(int argc,char * argv[])1437 main(int argc, char *argv[])
1438 {
1439 int i;
1440 cdf_header_t h;
1441 cdf_sat_t sat, ssat;
1442 cdf_stream_t sst, scn;
1443 cdf_dir_t dir;
1444 cdf_info_t info;
1445 const cdf_directory_t *root;
1446
1447 if (argc < 2) {
1448 (void)fprintf(stderr, "Usage: %s <filename>\n", getprogname());
1449 return -1;
1450 }
1451
1452 info.i_buf = NULL;
1453 info.i_len = 0;
1454 for (i = 1; i < argc; i++) {
1455 if ((info.i_fd = open(argv[1], O_RDONLY)) == -1)
1456 err(1, "Cannot open `%s'", argv[1]);
1457
1458 if (cdf_read_header(&info, &h) == -1)
1459 err(1, "Cannot read header");
1460 #ifdef CDF_DEBUG
1461 cdf_dump_header(&h);
1462 #endif
1463
1464 if (cdf_read_sat(&info, &h, &sat) == -1)
1465 err(1, "Cannot read sat");
1466 #ifdef CDF_DEBUG
1467 cdf_dump_sat("SAT", &sat, CDF_SEC_SIZE(&h));
1468 #endif
1469
1470 if (cdf_read_ssat(&info, &h, &sat, &ssat) == -1)
1471 err(1, "Cannot read ssat");
1472 #ifdef CDF_DEBUG
1473 cdf_dump_sat("SSAT", &ssat, CDF_SHORT_SEC_SIZE(&h));
1474 #endif
1475
1476 if (cdf_read_dir(&info, &h, &sat, &dir) == -1)
1477 err(1, "Cannot read dir");
1478
1479 if (cdf_read_short_stream(&info, &h, &sat, &dir, &sst, &root)
1480 == -1)
1481 err(1, "Cannot read short stream");
1482 #ifdef CDF_DEBUG
1483 cdf_dump_stream(&h, &sst);
1484 #endif
1485
1486 #ifdef CDF_DEBUG
1487 cdf_dump_dir(&info, &h, &sat, &ssat, &sst, &dir);
1488 #endif
1489
1490
1491 if (cdf_read_summary_info(&info, &h, &sat, &ssat, &sst, &dir,
1492 &scn) == -1)
1493 warn("Cannot read summary info");
1494 #ifdef CDF_DEBUG
1495 else
1496 cdf_dump_summary_info(&h, &scn);
1497 #endif
1498 if (cdf_read_catalog(&info, &h, &sat, &ssat, &sst, &dir,
1499 &scn) == -1)
1500 warn("Cannot read catalog");
1501 #ifdef CDF_DEBUG
1502 else
1503 cdf_dump_catalog(&h, &scn);
1504 #endif
1505
1506 (void)close(info.i_fd);
1507 }
1508
1509 return 0;
1510 }
1511 #endif
1512
