1 /*-
2 * Copyright (c) 2008, 2016 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 #include "file.h"
27
28 #ifndef lint
29 FILE_RCSID("@(#)$File: readcdf.c,v 1.76 2022/01/17 16:59:01 christos Exp $")
30 #endif
31
32 #include <assert.h>
33 #include <stdlib.h>
34 #include <unistd.h>
35 #include <string.h>
36 #include <time.h>
37 #include <ctype.h>
38
39 #include "cdf.h"
40 #include "magic.h"
41
42 #define NOTMIME(ms) (((ms)->flags & MAGIC_MIME) == 0)
43
44 static const struct nv {
45 const char *pattern;
46 const char *mime;
47 } app2mime[] = {
48 { "Word", "msword", },
49 { "Excel", "vnd.ms-excel", },
50 { "Powerpoint", "vnd.ms-powerpoint", },
51 { "Crystal Reports", "x-rpt", },
52 { "Advanced Installer", "vnd.ms-msi", },
53 { "InstallShield", "vnd.ms-msi", },
54 { "Microsoft Patch Compiler", "vnd.ms-msi", },
55 { "NAnt", "vnd.ms-msi", },
56 { "Windows Installer", "vnd.ms-msi", },
57 { NULL, NULL, },
58 }, name2mime[] = {
59 { "Book", "vnd.ms-excel", },
60 { "Workbook", "vnd.ms-excel", },
61 { "WordDocument", "msword", },
62 { "PowerPoint", "vnd.ms-powerpoint", },
63 { "DigitalSignature", "vnd.ms-msi", },
64 { NULL, NULL, },
65 }, name2desc[] = {
66 { "Book", "Microsoft Excel", },
67 { "Workbook", "Microsoft Excel", },
68 { "WordDocument", "Microsoft Word", },
69 { "PowerPoint", "Microsoft PowerPoint", },
70 { "DigitalSignature", "Microsoft Installer", },
71 { NULL, NULL, },
72 };
73
74 static const struct cv {
75 uint64_t clsid[2];
76 const char *mime;
77 } clsid2mime[] = {
78 {
79 { 0x00000000000c1084ULL, 0x46000000000000c0ULL },
80 "x-msi",
81 },
82 { { 0, 0 },
83 NULL,
84 },
85 }, clsid2desc[] = {
86 {
87 { 0x00000000000c1084ULL, 0x46000000000000c0ULL },
88 "MSI Installer",
89 },
90 { { 0, 0 },
91 NULL,
92 },
93 };
94
95 private const char *
cdf_clsid_to_mime(const uint64_t clsid[2],const struct cv * cv)96 cdf_clsid_to_mime(const uint64_t clsid[2], const struct cv *cv)
97 {
98 size_t i;
99 for (i = 0; cv[i].mime != NULL; i++) {
100 if (clsid[0] == cv[i].clsid[0] && clsid[1] == cv[i].clsid[1])
101 return cv[i].mime;
102 }
103 #ifdef CDF_DEBUG
104 fprintf(stderr, "unknown mime %" PRIx64 ", %" PRIx64 "\n", clsid[0],
105 clsid[1]);
106 #endif
107 return NULL;
108 }
109
110 private const char *
cdf_app_to_mime(const char * vbuf,const struct nv * nv)111 cdf_app_to_mime(const char *vbuf, const struct nv *nv)
112 {
113 size_t i;
114 const char *rv = NULL;
115 #ifdef USE_C_LOCALE
116 locale_t old_lc_ctype, c_lc_ctype;
117
118 c_lc_ctype = newlocale(LC_CTYPE_MASK, "C", 0);
119 assert(c_lc_ctype != NULL);
120 old_lc_ctype = uselocale(c_lc_ctype);
121 assert(old_lc_ctype != NULL);
122 #else
123 char *old_lc_ctype = setlocale(LC_CTYPE, NULL);
124 assert(old_lc_ctype != NULL);
125 old_lc_ctype = strdup(old_lc_ctype);
126 assert(old_lc_ctype != NULL);
127 (void)setlocale(LC_CTYPE, "C");
128 #endif
129 for (i = 0; nv[i].pattern != NULL; i++)
130 if (strcasestr(vbuf, nv[i].pattern) != NULL) {
131 rv = nv[i].mime;
132 break;
133 }
134 #ifdef CDF_DEBUG
135 fprintf(stderr, "unknown app %s\n", vbuf);
136 #endif
137 #ifdef USE_C_LOCALE
138 (void)uselocale(old_lc_ctype);
139 freelocale(c_lc_ctype);
140 #else
141 (void)setlocale(LC_CTYPE, old_lc_ctype);
142 free(old_lc_ctype);
143 #endif
144 return rv;
145 }
146
147 private int
cdf_file_property_info(struct magic_set * ms,const cdf_property_info_t * info,size_t count,const cdf_directory_t * root_storage)148 cdf_file_property_info(struct magic_set *ms, const cdf_property_info_t *info,
149 size_t count, const cdf_directory_t *root_storage)
150 {
151 size_t i;
152 cdf_timestamp_t tp;
153 struct timespec ts;
154 char buf[64];
155 const char *str = NULL;
156 const char *s, *e;
157 int len;
158
159 if (!NOTMIME(ms) && root_storage)
160 str = cdf_clsid_to_mime(root_storage->d_storage_uuid,
161 clsid2mime);
162
163 for (i = 0; i < count; i++) {
164 cdf_print_property_name(buf, sizeof(buf), info[i].pi_id);
165 switch (info[i].pi_type) {
166 case CDF_NULL:
167 break;
168 case CDF_SIGNED16:
169 if (NOTMIME(ms) && file_printf(ms, ", %s: %hd", buf,
170 info[i].pi_s16) == -1)
171 return -1;
172 break;
173 case CDF_SIGNED32:
174 if (NOTMIME(ms) && file_printf(ms, ", %s: %d", buf,
175 info[i].pi_s32) == -1)
176 return -1;
177 break;
178 case CDF_UNSIGNED32:
179 if (NOTMIME(ms) && file_printf(ms, ", %s: %u", buf,
180 info[i].pi_u32) == -1)
181 return -1;
182 break;
183 case CDF_FLOAT:
184 if (NOTMIME(ms) && file_printf(ms, ", %s: %g", buf,
185 info[i].pi_f) == -1)
186 return -1;
187 break;
188 case CDF_DOUBLE:
189 if (NOTMIME(ms) && file_printf(ms, ", %s: %g", buf,
190 info[i].pi_d) == -1)
191 return -1;
192 break;
193 case CDF_LENGTH32_STRING:
194 case CDF_LENGTH32_WSTRING:
195 len = info[i].pi_str.s_len;
196 if (len > 1) {
197 char vbuf[1024];
198 size_t j, k = 1;
199
200 if (info[i].pi_type == CDF_LENGTH32_WSTRING)
201 k++;
202 s = info[i].pi_str.s_buf;
203 e = info[i].pi_str.s_buf + len;
204 for (j = 0; s < e && j < sizeof(vbuf)
205 && len--; s += k) {
206 if (*s == '\0')
207 break;
208 if (isprint(CAST(unsigned char, *s)))
209 vbuf[j++] = *s;
210 }
211 if (j == sizeof(vbuf))
212 --j;
213 vbuf[j] = '\0';
214 if (NOTMIME(ms)) {
215 if (vbuf[0]) {
216 if (file_printf(ms, ", %s: %s",
217 buf, vbuf) == -1)
218 return -1;
219 }
220 } else if (str == NULL && info[i].pi_id ==
221 CDF_PROPERTY_NAME_OF_APPLICATION) {
222 str = cdf_app_to_mime(vbuf, app2mime);
223 }
224 }
225 break;
226 case CDF_FILETIME:
227 tp = info[i].pi_tp;
228 if (tp != 0) {
229 char tbuf[64];
230 if (tp < 1000000000000000LL) {
231 cdf_print_elapsed_time(tbuf,
232 sizeof(tbuf), tp);
233 if (NOTMIME(ms) && file_printf(ms,
234 ", %s: %s", buf, tbuf) == -1)
235 return -1;
236 } else {
237 char *c, *ec;
238 cdf_timestamp_to_timespec(&ts, tp);
239 c = cdf_ctime(&ts.tv_sec, tbuf);
240 if (c != NULL &&
241 (ec = strchr(c, '\n')) != NULL)
242 *ec = '\0';
243
244 if (NOTMIME(ms) && file_printf(ms,
245 ", %s: %s", buf, c) == -1)
246 return -1;
247 }
248 }
249 break;
250 case CDF_CLIPBOARD:
251 break;
252 default:
253 return -1;
254 }
255 }
256 if (ms->flags & MAGIC_MIME_TYPE) {
257 if (str == NULL)
258 return 0;
259 if (file_printf(ms, "application/%s", str) == -1)
260 return -1;
261 }
262 return 1;
263 }
264
265 private int
cdf_file_catalog(struct magic_set * ms,const cdf_header_t * h,const cdf_stream_t * sst)266 cdf_file_catalog(struct magic_set *ms, const cdf_header_t *h,
267 const cdf_stream_t *sst)
268 {
269 cdf_catalog_t *cat;
270 size_t i;
271 char buf[256];
272 cdf_catalog_entry_t *ce;
273
274 if (NOTMIME(ms)) {
275 if (file_printf(ms, "Microsoft Thumbs.db [") == -1)
276 return -1;
277 if (cdf_unpack_catalog(h, sst, &cat) == -1)
278 return -1;
279 ce = cat->cat_e;
280 /* skip first entry since it has a , or paren */
281 for (i = 1; i < cat->cat_num; i++)
282 if (file_printf(ms, "%s%s",
283 cdf_u16tos8(buf, ce[i].ce_namlen, ce[i].ce_name),
284 i == cat->cat_num - 1 ? "]" : ", ") == -1) {
285 free(cat);
286 return -1;
287 }
288 free(cat);
289 } else if (ms->flags & MAGIC_MIME_TYPE) {
290 if (file_printf(ms, "application/CDFV2") == -1)
291 return -1;
292 }
293 return 1;
294 }
295
296 private int
cdf_file_summary_info(struct magic_set * ms,const cdf_header_t * h,const cdf_stream_t * sst,const cdf_directory_t * root_storage)297 cdf_file_summary_info(struct magic_set *ms, const cdf_header_t *h,
298 const cdf_stream_t *sst, const cdf_directory_t *root_storage)
299 {
300 cdf_summary_info_header_t si;
301 cdf_property_info_t *info;
302 size_t count;
303 int m;
304
305 if (cdf_unpack_summary_info(sst, h, &si, &info, &count) == -1)
306 return -1;
307
308 if (NOTMIME(ms)) {
309 const char *str;
310
311 if (file_printf(ms, "Composite Document File V2 Document")
312 == -1)
313 return -1;
314
315 if (file_printf(ms, ", %s Endian",
316 si.si_byte_order == 0xfffe ? "Little" : "Big") == -1)
317 return -2;
318 switch (si.si_os) {
319 case 2:
320 if (file_printf(ms, ", Os: Windows, Version %d.%d",
321 si.si_os_version & 0xff,
322 CAST(uint32_t, si.si_os_version) >> 8) == -1)
323 return -2;
324 break;
325 case 1:
326 if (file_printf(ms, ", Os: MacOS, Version %d.%d",
327 CAST(uint32_t, si.si_os_version) >> 8,
328 si.si_os_version & 0xff) == -1)
329 return -2;
330 break;
331 default:
332 if (file_printf(ms, ", Os %d, Version: %d.%d", si.si_os,
333 si.si_os_version & 0xff,
334 CAST(uint32_t, si.si_os_version) >> 8) == -1)
335 return -2;
336 break;
337 }
338 if (root_storage) {
339 str = cdf_clsid_to_mime(root_storage->d_storage_uuid,
340 clsid2desc);
341 if (str) {
342 if (file_printf(ms, ", %s", str) == -1)
343 return -2;
344 }
345 }
346 }
347
348 m = cdf_file_property_info(ms, info, count, root_storage);
349 free(info);
350
351 return m == -1 ? -2 : m;
352 }
353
354 #ifdef notdef
355 private char *
format_clsid(char * buf,size_t len,const uint64_t uuid[2])356 format_clsid(char *buf, size_t len, const uint64_t uuid[2]) {
357 snprintf(buf, len, "%.8" PRIx64 "-%.4" PRIx64 "-%.4" PRIx64 "-%.4"
358 PRIx64 "-%.12" PRIx64,
359 (uuid[0] >> 32) & (uint64_t)0x000000000ffffffffULL,
360 (uuid[0] >> 16) & (uint64_t)0x0000000000000ffffULL,
361 (uuid[0] >> 0) & (uint64_t)0x0000000000000ffffULL,
362 (uuid[1] >> 48) & (uint64_t)0x0000000000000ffffULL,
363 (uuid[1] >> 0) & (uint64_t)0x0000fffffffffffffULL);
364 return buf;
365 }
366 #endif
367
368 private int
cdf_file_catalog_info(struct magic_set * ms,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)369 cdf_file_catalog_info(struct magic_set *ms, const cdf_info_t *info,
370 const cdf_header_t *h, const cdf_sat_t *sat, const cdf_sat_t *ssat,
371 const cdf_stream_t *sst, const cdf_dir_t *dir, cdf_stream_t *scn)
372 {
373 int i;
374
375 if ((i = cdf_read_user_stream(info, h, sat, ssat, sst,
376 dir, "Catalog", scn)) == -1)
377 return i;
378 #ifdef CDF_DEBUG
379 cdf_dump_catalog(h, scn);
380 #endif
381 if ((i = cdf_file_catalog(ms, h, scn)) == -1)
382 return -1;
383 return i;
384 }
385
386 private int
cdf_check_summary_info(struct magic_set * ms,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,const cdf_directory_t * root_storage,const char ** expn)387 cdf_check_summary_info(struct magic_set *ms, const cdf_info_t *info,
388 const cdf_header_t *h, const cdf_sat_t *sat, const cdf_sat_t *ssat,
389 const cdf_stream_t *sst, const cdf_dir_t *dir, cdf_stream_t *scn,
390 const cdf_directory_t *root_storage, const char **expn)
391 {
392 int i;
393 const char *str = NULL;
394 cdf_directory_t *d;
395 char name[__arraycount(d->d_name)];
396 size_t j, k;
397
398 #ifdef CDF_DEBUG
399 cdf_dump_summary_info(h, scn);
400 #endif
401 if ((i = cdf_file_summary_info(ms, h, scn, root_storage)) < 0) {
402 *expn = "Can't expand summary_info";
403 return i;
404 }
405 if (i == 1)
406 return i;
407 for (j = 0; str == NULL && j < dir->dir_len; j++) {
408 d = &dir->dir_tab[j];
409 for (k = 0; k < sizeof(name); k++)
410 name[k] = CAST(char, cdf_tole2(d->d_name[k]));
411 str = cdf_app_to_mime(name,
412 NOTMIME(ms) ? name2desc : name2mime);
413 }
414 if (NOTMIME(ms)) {
415 if (str != NULL) {
416 if (file_printf(ms, "%s", str) == -1)
417 return -1;
418 i = 1;
419 }
420 } else if (ms->flags & MAGIC_MIME_TYPE) {
421 if (str == NULL)
422 str = "vnd.ms-office";
423 if (file_printf(ms, "application/%s", str) == -1)
424 return -1;
425 i = 1;
426 }
427 if (i <= 0) {
428 i = cdf_file_catalog_info(ms, info, h, sat, ssat, sst,
429 dir, scn);
430 }
431 return i;
432 }
433
434 private struct sinfo {
435 const char *name;
436 const char *mime;
437 const char *sections[5];
438 const int types[5];
439 } sectioninfo[] = {
440 { "Encrypted", "encrypted",
441 {
442 "EncryptedPackage", "EncryptedSummary",
443 NULL, NULL, NULL,
444 },
445 {
446 CDF_DIR_TYPE_USER_STREAM,
447 CDF_DIR_TYPE_USER_STREAM,
448 0, 0, 0,
449
450 },
451 },
452 { "QuickBooks", "quickbooks",
453 {
454 #if 0
455 "TaxForms", "PDFTaxForms", "modulesInBackup",
456 #endif
457 "mfbu_header", NULL, NULL, NULL, NULL,
458 },
459 {
460 #if 0
461 CDF_DIR_TYPE_USER_STORAGE,
462 CDF_DIR_TYPE_USER_STORAGE,
463 CDF_DIR_TYPE_USER_STREAM,
464 #endif
465 CDF_DIR_TYPE_USER_STREAM,
466 0, 0, 0, 0
467 },
468 },
469 { "Microsoft Excel", "vnd.ms-excel",
470 {
471 "Book", "Workbook", NULL, NULL, NULL,
472 },
473 {
474 CDF_DIR_TYPE_USER_STREAM,
475 CDF_DIR_TYPE_USER_STREAM,
476 0, 0, 0,
477 },
478 },
479 { "Microsoft Word", "msword",
480 {
481 "WordDocument", NULL, NULL, NULL, NULL,
482 },
483 {
484 CDF_DIR_TYPE_USER_STREAM,
485 0, 0, 0, 0,
486 },
487 },
488 { "Microsoft PowerPoint", "vnd.ms-powerpoint",
489 {
490 "PowerPoint", NULL, NULL, NULL, NULL,
491 },
492 {
493 CDF_DIR_TYPE_USER_STREAM,
494 0, 0, 0, 0,
495 },
496 },
497 { "Microsoft Outlook Message", "vnd.ms-outlook",
498 {
499 "__properties_version1.0",
500 "__recip_version1.0_#00000000",
501 NULL, NULL, NULL,
502 },
503 {
504 CDF_DIR_TYPE_USER_STREAM,
505 CDF_DIR_TYPE_USER_STORAGE,
506 0, 0, 0,
507 },
508 },
509 };
510
511 private int
cdf_file_dir_info(struct magic_set * ms,const cdf_dir_t * dir)512 cdf_file_dir_info(struct magic_set *ms, const cdf_dir_t *dir)
513 {
514 size_t sd, j;
515
516 for (sd = 0; sd < __arraycount(sectioninfo); sd++) {
517 const struct sinfo *si = §ioninfo[sd];
518 for (j = 0; si->sections[j]; j++) {
519 if (cdf_find_stream(dir, si->sections[j], si->types[j])
520 > 0)
521 break;
522 #ifdef CDF_DEBUG
523 fprintf(stderr, "Can't read %s\n", si->sections[j]);
524 #endif
525 }
526 if (si->sections[j] == NULL)
527 continue;
528 if (NOTMIME(ms)) {
529 if (file_printf(ms, "CDFV2 %s", si->name) == -1)
530 return -1;
531 } else if (ms->flags & MAGIC_MIME_TYPE) {
532 if (file_printf(ms, "application/%s", si->mime) == -1)
533 return -1;
534 }
535 return 1;
536 }
537 return -1;
538 }
539
540 protected int
file_trycdf(struct magic_set * ms,const struct buffer * b)541 file_trycdf(struct magic_set *ms, const struct buffer *b)
542 {
543 int fd = b->fd;
544 const unsigned char *buf = CAST(const unsigned char *, b->fbuf);
545 size_t nbytes = b->flen;
546 cdf_info_t info;
547 cdf_header_t h;
548 cdf_sat_t sat, ssat;
549 cdf_stream_t sst, scn;
550 cdf_dir_t dir;
551 int i;
552 const char *expn = "";
553 const cdf_directory_t *root_storage;
554
555 scn.sst_tab = NULL;
556 info.i_fd = fd;
557 info.i_buf = buf;
558 info.i_len = nbytes;
559 if (ms->flags & (MAGIC_APPLE|MAGIC_EXTENSION))
560 return 0;
561 if (cdf_read_header(&info, &h) == -1)
562 return 0;
563 #ifdef CDF_DEBUG
564 cdf_dump_header(&h);
565 #endif
566
567 if ((i = cdf_read_sat(&info, &h, &sat)) == -1) {
568 expn = "Can't read SAT";
569 goto out0;
570 }
571 #ifdef CDF_DEBUG
572 cdf_dump_sat("SAT", &sat, CDF_SEC_SIZE(&h));
573 #endif
574
575 if ((i = cdf_read_ssat(&info, &h, &sat, &ssat)) == -1) {
576 expn = "Can't read SSAT";
577 goto out1;
578 }
579 #ifdef CDF_DEBUG
580 cdf_dump_sat("SSAT", &ssat, CDF_SHORT_SEC_SIZE(&h));
581 #endif
582
583 if ((i = cdf_read_dir(&info, &h, &sat, &dir)) == -1) {
584 expn = "Can't read directory";
585 goto out2;
586 }
587
588 if ((i = cdf_read_short_stream(&info, &h, &sat, &dir, &sst,
589 &root_storage)) == -1) {
590 expn = "Cannot read short stream";
591 goto out3;
592 }
593 #ifdef CDF_DEBUG
594 cdf_dump_dir(&info, &h, &sat, &ssat, &sst, &dir);
595 #endif
596 #ifdef notdef
597 if (root_storage) {
598 if (NOTMIME(ms)) {
599 char clsbuf[128];
600 if (file_printf(ms, "CLSID %s, ",
601 format_clsid(clsbuf, sizeof(clsbuf),
602 root_storage->d_storage_uuid)) == -1)
603 return -1;
604 }
605 }
606 #endif
607
608 if (cdf_read_user_stream(&info, &h, &sat, &ssat, &sst, &dir,
609 "FileHeader", &scn) != -1) {
610 #define HWP5_SIGNATURE "HWP Document File"
611 if (scn.sst_len * scn.sst_ss >= sizeof(HWP5_SIGNATURE) - 1
612 && memcmp(scn.sst_tab, HWP5_SIGNATURE,
613 sizeof(HWP5_SIGNATURE) - 1) == 0) {
614 if (NOTMIME(ms)) {
615 if (file_printf(ms,
616 "Hangul (Korean) Word Processor File 5.x") == -1)
617 return -1;
618 } else if (ms->flags & MAGIC_MIME_TYPE) {
619 if (file_printf(ms, "application/x-hwp") == -1)
620 return -1;
621 }
622 i = 1;
623 goto out5;
624 } else {
625 cdf_zero_stream(&scn);
626 }
627 }
628
629 if ((i = cdf_read_summary_info(&info, &h, &sat, &ssat, &sst, &dir,
630 &scn)) == -1) {
631 if (errno != ESRCH) {
632 expn = "Cannot read summary info";
633 }
634 } else {
635 i = cdf_check_summary_info(ms, &info, &h,
636 &sat, &ssat, &sst, &dir, &scn, root_storage, &expn);
637 cdf_zero_stream(&scn);
638 }
639 if (i <= 0) {
640 if ((i = cdf_read_doc_summary_info(&info, &h, &sat, &ssat,
641 &sst, &dir, &scn)) == -1) {
642 if (errno != ESRCH) {
643 expn = "Cannot read summary info";
644 }
645 } else {
646 i = cdf_check_summary_info(ms, &info, &h, &sat, &ssat,
647 &sst, &dir, &scn, root_storage, &expn);
648 }
649 }
650 if (i <= 0) {
651 i = cdf_file_dir_info(ms, &dir);
652 if (i < 0)
653 expn = "Cannot read section info";
654 }
655 out5:
656 cdf_zero_stream(&scn);
657 cdf_zero_stream(&sst);
658 out3:
659 free(dir.dir_tab);
660 out2:
661 free(ssat.sat_tab);
662 out1:
663 free(sat.sat_tab);
664 out0:
665 /* If we handled it already, return */
666 if (i != -1)
667 return i;
668 /* Provide a default handler */
669 if (NOTMIME(ms)) {
670 if (file_printf(ms,
671 "Composite Document File V2 Document") == -1)
672 return -1;
673 if (*expn)
674 if (file_printf(ms, ", %s", expn) == -1)
675 return -1;
676 } else if (ms->flags & MAGIC_MIME_TYPE) {
677 /* https://reposcope.com/mimetype/application/x-ole-storage */
678 if (file_printf(ms, "application/x-ole-storage") == -1)
679 return -1;
680 }
681 return 1;
682 }
683