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1.1 misho 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: #include "file.h"
27:
28: #ifndef lint
1.1.1.3 ! misho 29: FILE_RCSID("@(#)$File: readcdf.c,v 1.33 2012/06/20 21:52:36 christos Exp $")
1.1 misho 30: #endif
31:
32: #include <stdlib.h>
33: #ifdef PHP_WIN32
34: #include "win32/unistd.h"
35: #else
36: #include <unistd.h>
37: #endif
38: #include <string.h>
39: #include <time.h>
40: #include <ctype.h>
41:
42: #include "cdf.h"
43: #include "magic.h"
44:
45: #define NOTMIME(ms) (((ms)->flags & MAGIC_MIME) == 0)
46:
47: private int
48: cdf_file_property_info(struct magic_set *ms, const cdf_property_info_t *info,
49: size_t count)
50: {
1.1.1.2 misho 51: size_t i;
52: cdf_timestamp_t tp;
53: struct timeval ts;
54: char buf[64];
55: const char *str = NULL;
56: const char *s;
57: int len;
58:
59: for (i = 0; i < count; i++) {
60: cdf_print_property_name(buf, sizeof(buf), info[i].pi_id);
61: switch (info[i].pi_type) {
62: case CDF_NULL:
63: break;
64: case CDF_SIGNED16:
65: if (NOTMIME(ms) && file_printf(ms, ", %s: %hd", buf,
66: info[i].pi_s16) == -1)
67: return -1;
68: break;
69: case CDF_SIGNED32:
70: if (NOTMIME(ms) && file_printf(ms, ", %s: %d", buf,
71: info[i].pi_s32) == -1)
72: return -1;
73: break;
74: case CDF_UNSIGNED32:
75: if (NOTMIME(ms) && file_printf(ms, ", %s: %u", buf,
76: info[i].pi_u32) == -1)
77: return -1;
78: break;
79: case CDF_FLOAT:
80: if (NOTMIME(ms) && file_printf(ms, ", %s: %g", buf,
81: info[i].pi_f) == -1)
82: return -1;
83: break;
84: case CDF_DOUBLE:
85: if (NOTMIME(ms) && file_printf(ms, ", %s: %g", buf,
86: info[i].pi_d) == -1)
87: return -1;
88: break;
89: case CDF_LENGTH32_STRING:
90: case CDF_LENGTH32_WSTRING:
91: len = info[i].pi_str.s_len;
92: if (len > 1) {
93: char vbuf[1024];
94: size_t j, k = 1;
95:
96: if (info[i].pi_type == CDF_LENGTH32_WSTRING)
97: k++;
98: s = info[i].pi_str.s_buf;
99: for (j = 0; j < sizeof(vbuf) && len--;
100: j++, s += k) {
101: if (*s == '\0')
102: break;
103: if (isprint((unsigned char)*s))
104: vbuf[j] = *s;
105: }
106: if (j == sizeof(vbuf))
107: --j;
108: vbuf[j] = '\0';
109: if (NOTMIME(ms)) {
110: if (vbuf[0]) {
111: if (file_printf(ms, ", %s: %s",
112: buf, vbuf) == -1)
113: return -1;
114: }
115: } else if (info[i].pi_id ==
116: CDF_PROPERTY_NAME_OF_APPLICATION) {
117: if (strstr(vbuf, "Word"))
118: str = "msword";
119: else if (strstr(vbuf, "Excel"))
120: str = "vnd.ms-excel";
121: else if (strstr(vbuf, "Powerpoint"))
122: str = "vnd.ms-powerpoint";
123: else if (strstr(vbuf,
124: "Crystal Reports"))
125: str = "x-rpt";
126: }
127: }
128: break;
129: case CDF_FILETIME:
130: tp = info[i].pi_tp;
131: if (tp != 0) {
1.1.1.3 ! misho 132: char tbuf[64];
1.1 misho 133: #if defined(PHP_WIN32) && _MSC_VER <= 1500
1.1.1.2 misho 134: if (tp < 1000000000000000i64) {
1.1 misho 135: #else
1.1.1.2 misho 136: if (tp < 1000000000000000LL) {
1.1 misho 137: #endif
1.1.1.2 misho 138: cdf_print_elapsed_time(tbuf,
139: sizeof(tbuf), tp);
140: if (NOTMIME(ms) && file_printf(ms,
141: ", %s: %s", buf, tbuf) == -1)
142: return -1;
143: } else {
144: char *c, *ec;
145: if (cdf_timestamp_to_timespec(&ts, tp) == -1) {
146: return -1;
147: }
1.1.1.3 ! misho 148: c = cdf_ctime(&ts.tv_sec, tbuf);
1.1.1.2 misho 149: if ((ec = strchr(c, '\n')) != NULL)
150: *ec = '\0';
151:
152: if (NOTMIME(ms) && file_printf(ms,
153: ", %s: %s", buf, c) == -1)
154: return -1;
155: }
156: }
157: break;
158: case CDF_CLIPBOARD:
159: break;
160: default:
161: return -1;
162: }
163: }
164: if (!NOTMIME(ms)) {
165: if (str == NULL)
166: return 0;
167: if (file_printf(ms, "application/%s", str) == -1)
168: return -1;
169: }
170: return 1;
1.1 misho 171: }
172:
173: private int
1.1.1.2 misho 174: cdf_file_summary_info(struct magic_set *ms, const cdf_header_t *h,
175: const cdf_stream_t *sst)
1.1 misho 176: {
1.1.1.2 misho 177: cdf_summary_info_header_t si;
178: cdf_property_info_t *info;
179: size_t count;
180: int m;
181:
182: if (cdf_unpack_summary_info(sst, h, &si, &info, &count) == -1)
183: return -1;
184:
185: if (NOTMIME(ms)) {
186: if (file_printf(ms, "Composite Document File V2 Document")
187: == -1)
188: return -1;
189:
190: if (file_printf(ms, ", %s Endian",
191: si.si_byte_order == 0xfffe ? "Little" : "Big") == -1)
192: return -2;
193: switch (si.si_os) {
194: case 2:
195: if (file_printf(ms, ", Os: Windows, Version %d.%d",
196: si.si_os_version & 0xff,
197: (uint32_t)si.si_os_version >> 8) == -1)
198: return -2;
199: break;
200: case 1:
201: if (file_printf(ms, ", Os: MacOS, Version %d.%d",
202: (uint32_t)si.si_os_version >> 8,
203: si.si_os_version & 0xff) == -1)
204: return -2;
205: break;
206: default:
207: if (file_printf(ms, ", Os %d, Version: %d.%d", si.si_os,
208: si.si_os_version & 0xff,
209: (uint32_t)si.si_os_version >> 8) == -1)
210: return -2;
211: break;
212: }
213: }
1.1 misho 214:
1.1.1.2 misho 215: m = cdf_file_property_info(ms, info, count);
216: free(info);
1.1 misho 217:
1.1.1.2 misho 218: return m == -1 ? -2 : m;
1.1 misho 219: }
220:
221: protected int
222: file_trycdf(struct magic_set *ms, int fd, const unsigned char *buf,
223: size_t nbytes)
224: {
1.1.1.2 misho 225: cdf_info_t info;
226: cdf_header_t h;
227: cdf_sat_t sat, ssat;
228: cdf_stream_t sst, scn;
229: cdf_dir_t dir;
230: int i;
231: const char *expn = "";
232: const char *corrupt = "corrupt: ";
233:
234: info.i_fd = fd;
235: info.i_buf = buf;
236: info.i_len = nbytes;
237: if (ms->flags & MAGIC_APPLE)
238: return 0;
239: if (cdf_read_header(&info, &h) == -1)
240: return 0;
1.1 misho 241: #ifdef CDF_DEBUG
1.1.1.2 misho 242: cdf_dump_header(&h);
1.1 misho 243: #endif
244:
1.1.1.2 misho 245: if ((i = cdf_read_sat(&info, &h, &sat)) == -1) {
246: expn = "Can't read SAT";
247: goto out0;
248: }
1.1 misho 249: #ifdef CDF_DEBUG
1.1.1.2 misho 250: cdf_dump_sat("SAT", &sat, CDF_SEC_SIZE(&h));
1.1 misho 251: #endif
252:
1.1.1.2 misho 253: if ((i = cdf_read_ssat(&info, &h, &sat, &ssat)) == -1) {
254: expn = "Can't read SSAT";
255: goto out1;
256: }
1.1 misho 257: #ifdef CDF_DEBUG
1.1.1.2 misho 258: cdf_dump_sat("SSAT", &ssat, CDF_SHORT_SEC_SIZE(&h));
1.1 misho 259: #endif
260:
1.1.1.2 misho 261: if ((i = cdf_read_dir(&info, &h, &sat, &dir)) == -1) {
262: expn = "Can't read directory";
263: goto out2;
264: }
265:
266: if ((i = cdf_read_short_stream(&info, &h, &sat, &dir, &sst)) == -1) {
267: expn = "Cannot read short stream";
268: goto out3;
269: }
1.1 misho 270: #ifdef CDF_DEBUG
1.1.1.2 misho 271: cdf_dump_dir(&info, &h, &sat, &ssat, &sst, &dir);
1.1 misho 272: #endif
273:
1.1.1.2 misho 274: if ((i = cdf_read_summary_info(&info, &h, &sat, &ssat, &sst, &dir,
275: &scn)) == -1) {
276: if (errno == ESRCH) {
277: corrupt = expn;
278: expn = "No summary info";
279: } else {
280: expn = "Cannot read summary info";
281: }
282: goto out4;
283: }
1.1 misho 284: #ifdef CDF_DEBUG
1.1.1.2 misho 285: cdf_dump_summary_info(&h, &scn);
1.1 misho 286: #endif
1.1.1.2 misho 287: if ((i = cdf_file_summary_info(ms, &h, &scn)) < 0)
288: expn = "Can't expand summary_info";
289: if (i == 0) {
290: const char *str = "vnd.ms-office";
291: cdf_directory_t *d;
292: char name[__arraycount(d->d_name)];
293: size_t j, k;
294: for (j = 0; j < dir.dir_len; j++) {
295: d = &dir.dir_tab[j];
296: for (k = 0; k < sizeof(name); k++)
297: name[k] = (char)cdf_tole2(d->d_name[k]);
1.1.1.3 ! misho 298: if (strstr(name, "WordDocument") != 0) {
1.1.1.2 misho 299: str = "msword";
300: break;
301: }
1.1.1.3 ! misho 302: if (strstr(name, "PowerPoint") != 0) {
! 303: str = "vnd.ms-powerpoint";
! 304: break;
! 305: }
1.1.1.2 misho 306: }
307: if (file_printf(ms, "application/%s", str) == -1)
308: return -1;
309: i = 1;
310: }
311: free(scn.sst_tab);
1.1 misho 312: out4:
1.1.1.2 misho 313: free(sst.sst_tab);
1.1 misho 314: out3:
1.1.1.2 misho 315: free(dir.dir_tab);
1.1 misho 316: out2:
1.1.1.2 misho 317: free(ssat.sat_tab);
1.1 misho 318: out1:
1.1.1.2 misho 319: free(sat.sat_tab);
1.1 misho 320: out0:
1.1.1.2 misho 321: if (i != 1) {
1.1.1.3 ! misho 322: if (i == -1) {
! 323: if (NOTMIME(ms)) {
! 324: if (file_printf(ms,
! 325: "Composite Document File V2 Document") == -1)
1.1.1.2 misho 326: return -1;
327: if (*expn)
328: if (file_printf(ms, ", %s%s", corrupt, expn) == -1)
329: return -1;
1.1.1.3 ! misho 330: } else {
! 331: if (file_printf(ms, "application/CDFV2-corrupt") == -1)
! 332: return -1;
! 333: }
! 334: }
1.1.1.2 misho 335: i = 1;
336: }
337: return i;
1.1 misho 338: }