Annotation of embedaddon/php/ext/fileinfo/libmagic/readcdf.c, revision 1.1
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
! 29: FILE_RCSID("@(#)$File: readcdf.c,v 1.18 2009/05/06 20:48:22 christos Exp $")
! 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: {
! 51: size_t i;
! 52: cdf_timestamp_t tp;
! 53: struct timeval ts;
! 54: char buf[64];
! 55: const char *str = "vnd.ms-office";
! 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_SIGNED16:
! 63: if (NOTMIME(ms) && file_printf(ms, ", %s: %hd", buf,
! 64: info[i].pi_s16) == -1)
! 65: return -1;
! 66: break;
! 67: case CDF_SIGNED32:
! 68: if (NOTMIME(ms) && file_printf(ms, ", %s: %d", buf,
! 69: info[i].pi_s32) == -1)
! 70: return -1;
! 71: break;
! 72: case CDF_UNSIGNED32:
! 73: if (NOTMIME(ms) && file_printf(ms, ", %s: %u", buf,
! 74: info[i].pi_u32) == -1)
! 75: return -1;
! 76: break;
! 77: case CDF_LENGTH32_STRING:
! 78: len = info[i].pi_str.s_len;
! 79: if (len > 1) {
! 80: s = info[i].pi_str.s_buf;
! 81: if (NOTMIME(ms)) {
! 82: char vbuf[1024];
! 83: size_t j;
! 84: for (j = 0; j < sizeof(vbuf) && len--;
! 85: j++, s++) {
! 86: if (*s == '\0')
! 87: break;
! 88: if (isprint((unsigned char)*s))
! 89: vbuf[j] = *s;
! 90: }
! 91: if (j == sizeof(vbuf))
! 92: --j;
! 93: vbuf[j] = '\0';
! 94: if (vbuf[0]) {
! 95: if (file_printf(ms, ", %s: %s",
! 96: buf, vbuf) == -1)
! 97: return -1;
! 98: }
! 99: } else if (info[i].pi_id ==
! 100: CDF_PROPERTY_NAME_OF_APPLICATION) {
! 101: if (strstr(s, "Word"))
! 102: str = "msword";
! 103: else if (strstr(s, "Excel"))
! 104: str = "vnd.ms-excel";
! 105: else if (strstr(s, "Powerpoint"))
! 106: str = "vnd.ms-powerpoint";
! 107: }
! 108: }
! 109: break;
! 110: case CDF_FILETIME:
! 111: tp = info[i].pi_tp;
! 112: if (tp != 0) {
! 113: #if defined(PHP_WIN32) && _MSC_VER <= 1500
! 114: if (tp < 1000000000000000i64) {
! 115: #else
! 116: if (tp < 1000000000000000LL) {
! 117: #endif
! 118: char tbuf[64];
! 119: cdf_print_elapsed_time(tbuf,
! 120: sizeof(tbuf), tp);
! 121: if (NOTMIME(ms) && file_printf(ms,
! 122: ", %s: %s", buf, tbuf) == -1)
! 123: return -1;
! 124: } else {
! 125: char *c, *ec;
! 126:
! 127: if (cdf_timestamp_to_timespec(&ts, tp) == -1) {
! 128: return -1;
! 129: }
! 130: c = ctime(&ts.tv_sec);
! 131: if ((ec = strchr(c, '\n')) != NULL)
! 132: *ec = '\0';
! 133:
! 134: if (NOTMIME(ms) && file_printf(ms,
! 135: ", %s: %s", buf, c) == -1)
! 136: return -1;
! 137: }
! 138: }
! 139: break;
! 140: case CDF_CLIPBOARD:
! 141: break;
! 142: default:
! 143: return -1;
! 144: }
! 145: }
! 146: if (!NOTMIME(ms)) {
! 147: if (file_printf(ms, "application/%s", str) == -1)
! 148: return -1;
! 149: }
! 150: return 1;
! 151: }
! 152:
! 153: private int
! 154: cdf_file_summary_info(struct magic_set *ms, const cdf_stream_t *sst)
! 155: {
! 156: cdf_summary_info_header_t si;
! 157: cdf_property_info_t *info;
! 158: size_t count;
! 159: int m;
! 160:
! 161: if (cdf_unpack_summary_info(sst, &si, &info, &count) == -1)
! 162: return -1;
! 163:
! 164: if (NOTMIME(ms)) {
! 165: if (file_printf(ms, "CDF V2 Document") == -1)
! 166: return -1;
! 167:
! 168: if (file_printf(ms, ", %s Endian",
! 169: si.si_byte_order == 0xfffe ? "Little" : "Big") == -1)
! 170: return -1;
! 171: switch (si.si_os) {
! 172: case 2:
! 173: if (file_printf(ms, ", Os: Windows, Version %d.%d",
! 174: si.si_os_version & 0xff, si.si_os_version >> 8)
! 175: == -1)
! 176: return -1;
! 177: break;
! 178: case 1:
! 179: if (file_printf(ms, ", Os: MacOS, Version %d.%d",
! 180: si.si_os_version >> 8, si.si_os_version & 0xff)
! 181: == -1)
! 182: return -1;
! 183: break;
! 184: default:
! 185: if (file_printf(ms, ", Os %d, Version: %d.%d", si.si_os,
! 186: si.si_os_version & 0xff, si.si_os_version >> 8)
! 187: == -1)
! 188: return -1;
! 189: break;
! 190: }
! 191: }
! 192:
! 193: m = cdf_file_property_info(ms, info, count);
! 194: free(info);
! 195:
! 196: return m;
! 197: }
! 198:
! 199: protected int
! 200: file_trycdf(struct magic_set *ms, int fd, const unsigned char *buf,
! 201: size_t nbytes)
! 202: {
! 203: cdf_info_t info;
! 204: cdf_header_t h;
! 205: cdf_sat_t sat, ssat;
! 206: cdf_stream_t sst, scn;
! 207: cdf_dir_t dir;
! 208: int i;
! 209: const char *expn = "";
! 210:
! 211: info.i_fd = fd;
! 212: info.i_buf = buf;
! 213: info.i_len = nbytes;
! 214: if (ms->flags & MAGIC_APPLE)
! 215: return 0;
! 216: if (cdf_read_header(&info, &h) == -1)
! 217: return 0;
! 218: #ifdef CDF_DEBUG
! 219: cdf_dump_header(&h);
! 220: #endif
! 221:
! 222: if ((i = cdf_read_sat(&info, &h, &sat)) == -1) {
! 223: expn = "Can't read SAT";
! 224: goto out0;
! 225: }
! 226: #ifdef CDF_DEBUG
! 227: cdf_dump_sat("SAT", &sat, CDF_SEC_SIZE(&h));
! 228: #endif
! 229:
! 230: if ((i = cdf_read_ssat(&info, &h, &sat, &ssat)) == -1) {
! 231: expn = "Can't read SSAT";
! 232: goto out1;
! 233: }
! 234: #ifdef CDF_DEBUG
! 235: cdf_dump_sat("SSAT", &ssat, CDF_SHORT_SEC_SIZE(&h));
! 236: #endif
! 237:
! 238: if ((i = cdf_read_dir(&info, &h, &sat, &dir)) == -1) {
! 239: expn = "Can't read directory";
! 240: goto out2;
! 241: }
! 242:
! 243: if ((i = cdf_read_short_stream(&info, &h, &sat, &dir, &sst)) == -1) {
! 244: expn = "Cannot read short stream";
! 245: goto out3;
! 246: }
! 247: #ifdef CDF_DEBUG
! 248: cdf_dump_dir(&info, &h, &sat, &ssat, &sst, &dir);
! 249: #endif
! 250:
! 251: if ((i = cdf_read_summary_info(&info, &h, &sat, &ssat, &sst, &dir,
! 252: &scn)) == -1) {
! 253: expn = "Cannot read summary info";
! 254: goto out4;
! 255: }
! 256: #ifdef CDF_DEBUG
! 257: cdf_dump_summary_info(&h, &scn);
! 258: #endif
! 259: if ((i = cdf_file_summary_info(ms, &scn)) == -1)
! 260: expn = "Can't expand summary_info";
! 261: free(scn.sst_tab);
! 262: out4:
! 263: free(sst.sst_tab);
! 264: out3:
! 265: free(dir.dir_tab);
! 266: out2:
! 267: free(ssat.sat_tab);
! 268: out1:
! 269: free(sat.sat_tab);
! 270: out0:
! 271: if (i != 1) {
! 272: if (file_printf(ms, "CDF V2 Document") == -1)
! 273: return -1;
! 274: if (*expn)
! 275: if (file_printf(ms, ", corrupt: %s", expn) == -1)
! 276: return -1;
! 277: i = 1;
! 278: }
! 279: return i;
! 280: }
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