| 1 |
#define __USE_LARGEFILE64 |
| 2 |
#define __USE_FILE_OFFSET64 |
| 3 |
#define _FILE_OFFSET_BITS 64 |
| 4 |
|
| 5 |
#ifdef __GNUC__ |
| 6 |
# ifndef _LARGEFILE_SOURCE |
| 7 |
# define _LARGEFILE_SOURCE |
| 8 |
# endif |
| 9 |
|
| 10 |
# ifndef _LARGEFILE64_SOURCE |
| 11 |
# define _LARGEFILE64_SOURCE |
| 12 |
# endif |
| 13 |
#endif |
| 14 |
|
| 15 |
#ifdef _WIN32 |
| 16 |
#include <windows.h> |
| 17 |
#endif |
| 18 |
|
| 19 |
#include <stdio.h> |
| 20 |
#include <stdlib.h> |
| 21 |
#include <string.h> |
| 22 |
#include <sys/types.h> |
| 23 |
#include <sys/stat.h> |
| 24 |
#include <fcntl.h> |
| 25 |
|
| 26 |
#include <zlib/zlib.h> |
| 27 |
#include <bzip2/bzlib.h> |
| 28 |
|
| 29 |
#include "CDVDiso.h" |
| 30 |
#include "libiso.h" |
| 31 |
|
| 32 |
/* some structs from libcdvd by Hiryu & Sjeep (C) 2002 */ |
| 33 |
|
| 34 |
#if defined(_WIN32) |
| 35 |
#pragma pack(1) |
| 36 |
#endif |
| 37 |
|
| 38 |
struct rootDirTocHeader |
| 39 |
{ |
| 40 |
u16 length; //+00 |
| 41 |
u32 tocLBA; //+02 |
| 42 |
u32 tocLBA_bigend; //+06 |
| 43 |
u32 tocSize; //+0A |
| 44 |
u32 tocSize_bigend; //+0E |
| 45 |
u8 dateStamp[8]; //+12 |
| 46 |
u8 reserved[6]; //+1A |
| 47 |
u8 reserved2; //+20 |
| 48 |
u8 reserved3; //+21 |
| 49 |
#if defined(_WIN32) |
| 50 |
}; //+22 |
| 51 |
#else |
| 52 |
} __attribute__((packed)); |
| 53 |
#endif |
| 54 |
|
| 55 |
struct asciiDate |
| 56 |
{ |
| 57 |
char year[4]; |
| 58 |
char month[2]; |
| 59 |
char day[2]; |
| 60 |
char hours[2]; |
| 61 |
char minutes[2]; |
| 62 |
char seconds[2]; |
| 63 |
char hundreths[2]; |
| 64 |
char terminator[1]; |
| 65 |
#if defined(_WIN32) |
| 66 |
}; |
| 67 |
#else |
| 68 |
} __attribute__((packed)); |
| 69 |
#endif |
| 70 |
|
| 71 |
struct cdVolDesc |
| 72 |
{ |
| 73 |
u8 filesystemType; // 0x01 = ISO9660, 0x02 = Joliet, 0xFF = NULL |
| 74 |
u8 volID[5]; // "CD001" |
| 75 |
u8 reserved2; |
| 76 |
u8 reserved3; |
| 77 |
u8 sysIdName[32]; |
| 78 |
u8 volName[32]; // The ISO9660 Volume Name |
| 79 |
u8 reserved5[8]; |
| 80 |
u32 volSize; // Volume Size |
| 81 |
u32 volSizeBig; // Volume Size Big-Endian |
| 82 |
u8 reserved6[32]; |
| 83 |
u32 unknown1; |
| 84 |
u32 unknown1_bigend; |
| 85 |
u16 volDescSize; //+80 |
| 86 |
u16 volDescSize_bigend; //+82 |
| 87 |
u32 unknown3; //+84 |
| 88 |
u32 unknown3_bigend; //+88 |
| 89 |
u32 priDirTableLBA; // LBA of Primary Dir Table //+8C |
| 90 |
u32 reserved7; //+90 |
| 91 |
u32 secDirTableLBA; // LBA of Secondary Dir Table //+94 |
| 92 |
u32 reserved8; //+98 |
| 93 |
struct rootDirTocHeader rootToc; |
| 94 |
u8 volSetName[128]; |
| 95 |
u8 publisherName[128]; |
| 96 |
u8 preparerName[128]; |
| 97 |
u8 applicationName[128]; |
| 98 |
u8 copyrightFileName[37]; |
| 99 |
u8 abstractFileName[37]; |
| 100 |
u8 bibliographyFileName[37]; |
| 101 |
struct asciiDate creationDate; |
| 102 |
struct asciiDate modificationDate; |
| 103 |
struct asciiDate effectiveDate; |
| 104 |
struct asciiDate expirationDate; |
| 105 |
u8 reserved10; |
| 106 |
u8 reserved11[1166]; |
| 107 |
#if defined(_WIN32) |
| 108 |
}; |
| 109 |
#else |
| 110 |
} __attribute__((packed)); |
| 111 |
#endif |
| 112 |
|
| 113 |
|
| 114 |
#ifdef _WIN32 |
| 115 |
void *_openfile(const char *filename, int flags) |
| 116 |
{ |
| 117 |
HANDLE handle; |
| 118 |
|
| 119 |
// printf("_openfile %s, %d\n", filename, flags & O_RDONLY); |
| 120 |
if (flags & O_WRONLY) |
| 121 |
{ |
| 122 |
int _flags = CREATE_NEW; |
| 123 |
if (flags & O_CREAT) _flags = CREATE_ALWAYS; |
| 124 |
handle = CreateFile(filename, GENERIC_WRITE, 0, NULL, _flags, 0, NULL); |
| 125 |
} |
| 126 |
else |
| 127 |
{ |
| 128 |
handle = CreateFile(filename, GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL); |
| 129 |
} |
| 130 |
|
| 131 |
return handle == INVALID_HANDLE_VALUE ? NULL : handle; |
| 132 |
} |
| 133 |
|
| 134 |
u32 _tellfile(void *handle) |
| 135 |
{ |
| 136 |
u32 ofs; |
| 137 |
PLONG _ofs = (LONG*) & ofs; |
| 138 |
_ofs[1] = 0; |
| 139 |
_ofs[0] = SetFilePointer(handle, 0, &_ofs[1], FILE_CURRENT); |
| 140 |
return ofs; |
| 141 |
} |
| 142 |
|
| 143 |
int _seekfile(void *handle, u64 offset, int whence) |
| 144 |
{ |
| 145 |
u64 ofs = (u64)offset; |
| 146 |
PLONG _ofs = (LONG*) & ofs; |
| 147 |
// printf("_seekfile %p, %d_%d\n", handle, _ofs[1], _ofs[0]); |
| 148 |
if (whence == SEEK_SET) |
| 149 |
{ |
| 150 |
SetFilePointer(handle, _ofs[0], &_ofs[1], FILE_BEGIN); |
| 151 |
} |
| 152 |
else |
| 153 |
{ |
| 154 |
SetFilePointer(handle, _ofs[0], &_ofs[1], FILE_END); |
| 155 |
} |
| 156 |
return 0; |
| 157 |
} |
| 158 |
|
| 159 |
int _readfile(void *handle, void *dst, int size) |
| 160 |
{ |
| 161 |
DWORD ret; |
| 162 |
|
| 163 |
// printf("_readfile %p %d\n", handle, size); |
| 164 |
ReadFile(handle, dst, size, &ret, NULL); |
| 165 |
// printf("_readfile ret %d; %d\n", ret, GetLastError()); |
| 166 |
return ret; |
| 167 |
} |
| 168 |
|
| 169 |
int _writefile(void *handle, void *src, int size) |
| 170 |
{ |
| 171 |
DWORD ret; |
| 172 |
|
| 173 |
// printf("_writefile %p, %d\n", handle, size); |
| 174 |
// _seekfile(handle, _tellfile(handle)); |
| 175 |
WriteFile(handle, src, size, &ret, NULL); |
| 176 |
// printf("_writefile ret %d\n", ret); |
| 177 |
return ret; |
| 178 |
} |
| 179 |
|
| 180 |
void _closefile(void *handle) |
| 181 |
{ |
| 182 |
CloseHandle(handle); |
| 183 |
} |
| 184 |
|
| 185 |
#else |
| 186 |
|
| 187 |
void *_openfile(const char *filename, int flags) |
| 188 |
{ |
| 189 |
printf("_openfile %s %x\n", filename, flags); |
| 190 |
|
| 191 |
if (flags & O_WRONLY) |
| 192 |
return fopen64(filename, "wb"); |
| 193 |
else |
| 194 |
return fopen64(filename, "rb"); |
| 195 |
} |
| 196 |
|
| 197 |
#include <errno.h> |
| 198 |
|
| 199 |
u64 _tellfile(void *handle) |
| 200 |
{ |
| 201 |
s64 cursize = ftell(handle); |
| 202 |
if (cursize == -1) |
| 203 |
{ |
| 204 |
// try 64bit |
| 205 |
cursize = ftello64(handle); |
| 206 |
if (cursize < -1) |
| 207 |
{ |
| 208 |
// zero top 32 bits |
| 209 |
cursize &= 0xffffffff; |
| 210 |
} |
| 211 |
} |
| 212 |
return cursize; |
| 213 |
} |
| 214 |
|
| 215 |
int _seekfile(void *handle, u64 offset, int whence) |
| 216 |
{ |
| 217 |
int seekerr = fseeko64(handle, offset, whence); |
| 218 |
|
| 219 |
if (seekerr == -1) printf("failed to seek\n"); |
| 220 |
|
| 221 |
return seekerr; |
| 222 |
} |
| 223 |
|
| 224 |
int _readfile(void *handle, void *dst, int size) |
| 225 |
{ |
| 226 |
return fread(dst, 1, size, handle); |
| 227 |
} |
| 228 |
|
| 229 |
int _writefile(void *handle, void *src, int size) |
| 230 |
{ |
| 231 |
return fwrite(src, 1, size, handle); |
| 232 |
} |
| 233 |
|
| 234 |
void _closefile(void *handle) |
| 235 |
{ |
| 236 |
fclose(handle); |
| 237 |
} |
| 238 |
|
| 239 |
#endif |
| 240 |
|
| 241 |
int detect(isoFile *iso) |
| 242 |
{ |
| 243 |
u8 buf[2448]; |
| 244 |
struct cdVolDesc *volDesc; |
| 245 |
|
| 246 |
if (isoReadBlock(iso, buf, 16) == -1) return -1; |
| 247 |
|
| 248 |
volDesc = (struct cdVolDesc *)(buf + 24); |
| 249 |
|
| 250 |
if (strncmp((char*)volDesc->volID, "CD001", 5)) return 0; |
| 251 |
|
| 252 |
if (volDesc->rootToc.tocSize == 2048) |
| 253 |
iso->type = ISOTYPE_CD; |
| 254 |
else |
| 255 |
iso->type = ISOTYPE_DVD; |
| 256 |
|
| 257 |
return 1; |
| 258 |
} |
| 259 |
|
| 260 |
int _isoReadZtable(isoFile *iso) |
| 261 |
{ |
| 262 |
void *handle; |
| 263 |
char table[256]; |
| 264 |
int size; |
| 265 |
|
| 266 |
sprintf(table, "%s.table", iso->filename); |
| 267 |
handle = _openfile(table, O_RDONLY); |
| 268 |
if (handle == NULL) |
| 269 |
{ |
| 270 |
printf("Error loading %s\n", table); |
| 271 |
return -1; |
| 272 |
} |
| 273 |
|
| 274 |
_seekfile(handle, 0, SEEK_END); |
| 275 |
size = _tellfile(handle); |
| 276 |
iso->Ztable = (char*)malloc(size); |
| 277 |
|
| 278 |
if (iso->Ztable == NULL) |
| 279 |
{ |
| 280 |
return -1; |
| 281 |
} |
| 282 |
|
| 283 |
_seekfile(handle, 0, SEEK_SET); |
| 284 |
_readfile(handle, iso->Ztable, size); |
| 285 |
_closefile(handle); |
| 286 |
|
| 287 |
iso->blocks = size / 6; |
| 288 |
|
| 289 |
return 0; |
| 290 |
} |
| 291 |
|
| 292 |
int _isoReadZ2table(isoFile *iso) |
| 293 |
{ |
| 294 |
void *handle; |
| 295 |
char table[256]; |
| 296 |
u32 *Ztable; |
| 297 |
int ofs, size, i; |
| 298 |
|
| 299 |
sprintf(table, "%s.table", iso->filename); |
| 300 |
handle = _openfile(table, O_RDONLY); |
| 301 |
|
| 302 |
if (handle == NULL) |
| 303 |
{ |
| 304 |
printf("Error loading %s\n", table); |
| 305 |
return -1; |
| 306 |
} |
| 307 |
|
| 308 |
_seekfile(handle, 0, SEEK_END); |
| 309 |
size = _tellfile(handle); |
| 310 |
Ztable = (u32*)malloc(size); |
| 311 |
|
| 312 |
if (Ztable == NULL) |
| 313 |
{ |
| 314 |
return -1; |
| 315 |
} |
| 316 |
|
| 317 |
_seekfile(handle, 0, SEEK_SET); |
| 318 |
_readfile(handle, Ztable, size); |
| 319 |
_closefile(handle); |
| 320 |
|
| 321 |
iso->Ztable = (char*)malloc(iso->blocks * 8); |
| 322 |
|
| 323 |
if (iso->Ztable == NULL) |
| 324 |
{ |
| 325 |
return -1; |
| 326 |
} |
| 327 |
|
| 328 |
ofs = 16; |
| 329 |
|
| 330 |
for (i = 0; i < iso->blocks; i++) |
| 331 |
{ |
| 332 |
*(u32*)&iso->Ztable[i*8+0] = ofs; |
| 333 |
*(u32*)&iso->Ztable[i*8+4] = Ztable[i]; |
| 334 |
ofs += Ztable[i]; |
| 335 |
} |
| 336 |
|
| 337 |
free(Ztable); |
| 338 |
|
| 339 |
return 0; |
| 340 |
} |
| 341 |
|
| 342 |
int _isoReadBZ2table(isoFile *iso) |
| 343 |
{ |
| 344 |
void *handle; |
| 345 |
char table[256]; |
| 346 |
u32 *Ztable; |
| 347 |
int ofs; |
| 348 |
int size; |
| 349 |
int i; |
| 350 |
|
| 351 |
sprintf(table, "%s.table", iso->filename); |
| 352 |
handle = _openfile(table, O_RDONLY); |
| 353 |
if (handle == NULL) |
| 354 |
{ |
| 355 |
printf("Error loading %s\n", table); |
| 356 |
return -1; |
| 357 |
} |
| 358 |
|
| 359 |
_seekfile(handle, 0, SEEK_END); |
| 360 |
size = _tellfile(handle); |
| 361 |
Ztable = (u32*)malloc(size); |
| 362 |
if (Ztable == NULL) return -1; |
| 363 |
|
| 364 |
_seekfile(handle, 0, SEEK_SET); |
| 365 |
_readfile(handle, Ztable, size); |
| 366 |
_closefile(handle); |
| 367 |
|
| 368 |
iso->Ztable = (char*)malloc(iso->blocks * 8); |
| 369 |
if (iso->Ztable == NULL) return -1; |
| 370 |
|
| 371 |
ofs = 16; |
| 372 |
|
| 373 |
for (i = 0; i < iso->blocks / 16; i++) |
| 374 |
{ |
| 375 |
*(u32*)&iso->Ztable[i*8+0] = ofs; |
| 376 |
*(u32*)&iso->Ztable[i*8+4] = Ztable[i]; |
| 377 |
ofs += Ztable[i]; |
| 378 |
} |
| 379 |
|
| 380 |
if (iso->blocks & 0xf) |
| 381 |
{ |
| 382 |
*(u32*)&iso->Ztable[i*8+0] = ofs; |
| 383 |
*(u32*)&iso->Ztable[i*8+4] = Ztable[i]; |
| 384 |
ofs += Ztable[i]; |
| 385 |
} |
| 386 |
|
| 387 |
free(Ztable); |
| 388 |
|
| 389 |
return 0; |
| 390 |
} |
| 391 |
|
| 392 |
int _isoReadDtable(isoFile *iso) |
| 393 |
{ |
| 394 |
int ret; |
| 395 |
int i; |
| 396 |
|
| 397 |
_seekfile(iso->handle, 0, SEEK_END); |
| 398 |
iso->dtablesize = (_tellfile(iso->handle) - 16) / (iso->blocksize + 4); |
| 399 |
iso->dtable = (u32*)malloc(iso->dtablesize * 4); |
| 400 |
|
| 401 |
for (i = 0; i < iso->dtablesize; i++) |
| 402 |
{ |
| 403 |
_seekfile(iso->handle, 16 + (iso->blocksize + 4)*i, SEEK_SET); |
| 404 |
ret = _readfile(iso->handle, &iso->dtable[i], 4); |
| 405 |
if (ret < 4) return -1; |
| 406 |
} |
| 407 |
|
| 408 |
return 0; |
| 409 |
} |
| 410 |
|
| 411 |
int isoDetect(isoFile *iso) // based on florin's CDVDbin detection code :) |
| 412 |
{ |
| 413 |
char buf[32]; |
| 414 |
int len; |
| 415 |
|
| 416 |
iso->type = ISOTYPE_ILLEGAL; |
| 417 |
|
| 418 |
len = strlen(iso->filename); |
| 419 |
if (len >= 2) |
| 420 |
{ |
| 421 |
if (!strncmp(iso->filename + (len - 2), ".Z", 2)) |
| 422 |
{ |
| 423 |
iso->flags = ISOFLAGS_Z; |
| 424 |
iso->blocksize = 2352; |
| 425 |
_isoReadZtable(iso); |
| 426 |
return detect(iso) == 1 ? 0 : -1; |
| 427 |
} |
| 428 |
} |
| 429 |
|
| 430 |
_seekfile(iso->handle, 0, SEEK_SET); |
| 431 |
_readfile(iso->handle, buf, 4); |
| 432 |
|
| 433 |
if (strncmp(buf, "BDV2", 4) == 0) |
| 434 |
{ |
| 435 |
iso->flags = ISOFLAGS_BLOCKDUMP; |
| 436 |
_readfile(iso->handle, &iso->blocksize, 4); |
| 437 |
_readfile(iso->handle, &iso->blocks, 4); |
| 438 |
_readfile(iso->handle, &iso->blockofs, 4); |
| 439 |
_isoReadDtable(iso); |
| 440 |
return detect(iso) == 1 ? 0 : -1; |
| 441 |
} |
| 442 |
else if (strncmp(buf, "Z V2", 4) == 0) |
| 443 |
{ |
| 444 |
iso->flags = ISOFLAGS_Z2; |
| 445 |
_readfile(iso->handle, &iso->blocksize, 4); |
| 446 |
_readfile(iso->handle, &iso->blocks, 4); |
| 447 |
_readfile(iso->handle, &iso->blockofs, 4); |
| 448 |
_isoReadZ2table(iso); |
| 449 |
return detect(iso) == 1 ? 0 : -1; |
| 450 |
} |
| 451 |
else if (strncmp(buf, "BZV2", 4) == 0) |
| 452 |
{ |
| 453 |
iso->flags = ISOFLAGS_BZ2; |
| 454 |
_readfile(iso->handle, &iso->blocksize, 4); |
| 455 |
_readfile(iso->handle, &iso->blocks, 4); |
| 456 |
_readfile(iso->handle, &iso->blockofs, 4); |
| 457 |
iso->buflsn = -1; |
| 458 |
iso->buffer = (u8*)malloc(iso->blocksize * 16); |
| 459 |
if (iso->buffer == NULL) return -1; |
| 460 |
_isoReadBZ2table(iso); |
| 461 |
return detect(iso) == 1 ? 0 : -1; |
| 462 |
} |
| 463 |
else |
| 464 |
{ |
| 465 |
iso->blocks = 16; |
| 466 |
} |
| 467 |
|
| 468 |
// ISO 2048 |
| 469 |
iso->blocksize = 2048; |
| 470 |
iso->offset = 0; |
| 471 |
iso->blockofs = 24; |
| 472 |
if (detect(iso) == 1) return 0; |
| 473 |
|
| 474 |
// RAW 2336 |
| 475 |
iso->blocksize = 2336; |
| 476 |
iso->offset = 0; |
| 477 |
iso->blockofs = 16; |
| 478 |
if (detect(iso) == 1) return 0; |
| 479 |
|
| 480 |
// RAW 2352 |
| 481 |
iso->blocksize = 2352; |
| 482 |
iso->offset = 0; |
| 483 |
iso->blockofs = 0; |
| 484 |
if (detect(iso) == 1) return 0; |
| 485 |
|
| 486 |
// RAWQ 2448 |
| 487 |
iso->blocksize = 2448; |
| 488 |
iso->offset = 0; |
| 489 |
iso->blockofs = 0; |
| 490 |
if (detect(iso) == 1) return 0; |
| 491 |
|
| 492 |
// NERO ISO 2048 |
| 493 |
iso->blocksize = 2048; |
| 494 |
iso->offset = 150 * 2048; |
| 495 |
iso->blockofs = 24; |
| 496 |
if (detect(iso) == 1) return 0; |
| 497 |
|
| 498 |
// NERO RAW 2352 |
| 499 |
iso->blocksize = 2352; |
| 500 |
iso->offset = 150 * 2048; |
| 501 |
iso->blockofs = 0; |
| 502 |
if (detect(iso) == 1) return 0; |
| 503 |
|
| 504 |
// NERO RAWQ 2448 |
| 505 |
iso->blocksize = 2448; |
| 506 |
iso->offset = 150 * 2048; |
| 507 |
iso->blockofs = 0; |
| 508 |
if (detect(iso) == 1) return 0; |
| 509 |
|
| 510 |
// ISO 2048 |
| 511 |
iso->blocksize = 2048; |
| 512 |
iso->offset = -8; |
| 513 |
iso->blockofs = 24; |
| 514 |
if (detect(iso) == 1) return 0; |
| 515 |
|
| 516 |
// RAW 2352 |
| 517 |
iso->blocksize = 2352; |
| 518 |
iso->offset = -8; |
| 519 |
iso->blockofs = 0; |
| 520 |
if (detect(iso) == 1) return 0; |
| 521 |
|
| 522 |
// RAWQ 2448 |
| 523 |
iso->blocksize = 2448; |
| 524 |
iso->offset = -8; |
| 525 |
iso->blockofs = 0; |
| 526 |
if (detect(iso) == 1) return 0; |
| 527 |
|
| 528 |
iso->offset = 0; |
| 529 |
iso->blocksize = 2352; |
| 530 |
iso->type = ISOTYPE_AUDIO; |
| 531 |
return 0; |
| 532 |
|
| 533 |
return -1; |
| 534 |
} |
| 535 |
|
| 536 |
isoFile *isoOpen(const char *filename) |
| 537 |
{ |
| 538 |
isoFile *iso; |
| 539 |
int i; |
| 540 |
|
| 541 |
iso = (isoFile*)malloc(sizeof(isoFile)); |
| 542 |
if (iso == NULL) return NULL; |
| 543 |
|
| 544 |
memset(iso, 0, sizeof(isoFile)); |
| 545 |
strcpy(iso->filename, filename); |
| 546 |
|
| 547 |
iso->handle = _openfile(iso->filename, O_RDONLY); |
| 548 |
if (iso->handle == NULL) |
| 549 |
{ |
| 550 |
printf("Error loading %s\n", iso->filename); |
| 551 |
return NULL; |
| 552 |
} |
| 553 |
|
| 554 |
if (isoDetect(iso) == -1) return NULL; |
| 555 |
|
| 556 |
printf("detected blocksize = %d\n", iso->blocksize); |
| 557 |
|
| 558 |
if (strlen(iso->filename) > 3 && strncmp(iso->filename + (strlen(iso->filename) - 3), "I00", 3) == 0) |
| 559 |
{ |
| 560 |
_closefile(iso->handle); |
| 561 |
iso->flags |= ISOFLAGS_MULTI; |
| 562 |
iso->blocks = 0; |
| 563 |
for (i = 0; i < 8; i++) |
| 564 |
{ |
| 565 |
iso->filename[strlen(iso->filename) - 1] = '0' + i; |
| 566 |
iso->multih[i].handle = _openfile(iso->filename, O_RDONLY); |
| 567 |
if (iso->multih[i].handle == NULL) |
| 568 |
{ |
| 569 |
break; |
| 570 |
} |
| 571 |
iso->multih[i].slsn = iso->blocks; |
| 572 |
_seekfile(iso->multih[i].handle, 0, SEEK_END); |
| 573 |
iso->blocks += (u32)((_tellfile(iso->multih[i].handle) - iso->offset) / |
| 574 |
(iso->blocksize)); |
| 575 |
iso->multih[i].elsn = iso->blocks - 1; |
| 576 |
} |
| 577 |
|
| 578 |
if (i == 0) |
| 579 |
{ |
| 580 |
return NULL; |
| 581 |
} |
| 582 |
} |
| 583 |
|
| 584 |
if (iso->flags == 0) |
| 585 |
{ |
| 586 |
_seekfile(iso->handle, 0, SEEK_END); |
| 587 |
iso->blocks = (u32)((_tellfile(iso->handle) - iso->offset) / |
| 588 |
(iso->blocksize)); |
| 589 |
} |
| 590 |
|
| 591 |
|
| 592 |
printf("isoOpen: %s ok\n", iso->filename); |
| 593 |
printf("offset = %d\n", iso->offset); |
| 594 |
printf("blockofs = %d\n", iso->blockofs); |
| 595 |
printf("blocksize = %d\n", iso->blocksize); |
| 596 |
printf("blocks = %d\n", iso->blocks); |
| 597 |
printf("type = %d\n", iso->type); |
| 598 |
|
| 599 |
return iso; |
| 600 |
} |
| 601 |
|
| 602 |
isoFile *isoCreate(const char *filename, int flags) |
| 603 |
{ |
| 604 |
isoFile *iso; |
| 605 |
char Zfile[256]; |
| 606 |
|
| 607 |
iso = (isoFile*)malloc(sizeof(isoFile)); |
| 608 |
if (iso == NULL) return NULL; |
| 609 |
|
| 610 |
memset(iso, 0, sizeof(isoFile)); |
| 611 |
strcpy(iso->filename, filename); |
| 612 |
iso->flags = flags; |
| 613 |
iso->offset = 0; |
| 614 |
iso->blockofs = 24; |
| 615 |
iso->blocksize = CD_FRAMESIZE_RAW; |
| 616 |
iso->blocksize = 2048; |
| 617 |
|
| 618 |
if (iso->flags & (ISOFLAGS_Z | ISOFLAGS_Z2 | ISOFLAGS_BZ2)) |
| 619 |
{ |
| 620 |
sprintf(Zfile, "%s.table", iso->filename); |
| 621 |
iso->htable = _openfile(Zfile, O_WRONLY); |
| 622 |
if (iso->htable == NULL) |
| 623 |
{ |
| 624 |
return NULL; |
| 625 |
} |
| 626 |
} |
| 627 |
|
| 628 |
iso->handle = _openfile(iso->filename, O_WRONLY | O_CREAT); |
| 629 |
if (iso->handle == NULL) |
| 630 |
{ |
| 631 |
printf("Error loading %s\n", iso->filename); |
| 632 |
return NULL; |
| 633 |
} |
| 634 |
printf("isoCreate: %s ok\n", iso->filename); |
| 635 |
printf("offset = %d\n", iso->offset); |
| 636 |
|
| 637 |
return iso; |
| 638 |
} |
| 639 |
|
| 640 |
int isoSetFormat(isoFile *iso, int blockofs, int blocksize, int blocks) |
| 641 |
{ |
| 642 |
iso->blocksize = blocksize; |
| 643 |
iso->blocks = blocks; |
| 644 |
iso->blockofs = blockofs; |
| 645 |
printf("blockofs = %d\n", iso->blockofs); |
| 646 |
printf("blocksize = %d\n", iso->blocksize); |
| 647 |
printf("blocks = %d\n", iso->blocks); |
| 648 |
if (iso->flags & ISOFLAGS_Z2) |
| 649 |
{ |
| 650 |
if (_writefile(iso->handle, "Z V2", 4) < 4) return -1; |
| 651 |
if (_writefile(iso->handle, &blocksize, 4) < 4) return -1; |
| 652 |
if (_writefile(iso->handle, &blocks, 4) < 4) return -1; |
| 653 |
if (_writefile(iso->handle, &blockofs, 4) < 4) return -1; |
| 654 |
} |
| 655 |
if (iso->flags & ISOFLAGS_BZ2) |
| 656 |
{ |
| 657 |
if (_writefile(iso->handle, "BZV2", 4) < 4) return -1; |
| 658 |
if (_writefile(iso->handle, &blocksize, 4) < 4) return -1; |
| 659 |
if (_writefile(iso->handle, &blocks, 4) < 4) return -1; |
| 660 |
if (_writefile(iso->handle, &blockofs, 4) < 4) return -1; |
| 661 |
iso->buflsn = -1; |
| 662 |
iso->buffer = (u8*)malloc(iso->blocksize * 16); |
| 663 |
if (iso->buffer == NULL) return -1; |
| 664 |
} |
| 665 |
if (iso->flags & ISOFLAGS_BLOCKDUMP) |
| 666 |
{ |
| 667 |
if (_writefile(iso->handle, "BDV2", 4) < 4) return -1; |
| 668 |
if (_writefile(iso->handle, &blocksize, 4) < 4) return -1; |
| 669 |
if (_writefile(iso->handle, &blocks, 4) < 4) return -1; |
| 670 |
if (_writefile(iso->handle, &blockofs, 4) < 4) return -1; |
| 671 |
} |
| 672 |
|
| 673 |
return 0; |
| 674 |
} |
| 675 |
|
| 676 |
s32 MSFtoLSN(u8 *Time) |
| 677 |
{ |
| 678 |
u32 lsn; |
| 679 |
|
| 680 |
lsn = Time[2]; |
| 681 |
lsn += (Time[1] - 2) * 75; |
| 682 |
lsn += Time[0] * 75 * 60; |
| 683 |
return lsn; |
| 684 |
} |
| 685 |
|
| 686 |
void LSNtoMSF(u8 *Time, s32 lsn) |
| 687 |
{ |
| 688 |
u8 m, s, f; |
| 689 |
|
| 690 |
lsn += 150; |
| 691 |
m = lsn / 4500; // minuten |
| 692 |
lsn = lsn - m * 4500; // minuten rest |
| 693 |
s = lsn / 75; // sekunden |
| 694 |
f = lsn - (s * 75); // sekunden rest |
| 695 |
Time[0] = itob(m); |
| 696 |
Time[1] = itob(s); |
| 697 |
Time[2] = itob(f); |
| 698 |
} |
| 699 |
|
| 700 |
int _isoReadBlock(isoFile *iso, u8 *dst, int lsn) |
| 701 |
{ |
| 702 |
u64 ofs = (u64)lsn * iso->blocksize + iso->offset; |
| 703 |
int ret; |
| 704 |
|
| 705 |
// printf("_isoReadBlock %d, blocksize=%d, blockofs=%d\n", lsn, iso->blocksize, iso->blockofs); |
| 706 |
memset(dst, 0, iso->blockofs); |
| 707 |
_seekfile(iso->handle, ofs, SEEK_SET); |
| 708 |
ret = _readfile(iso->handle, dst + iso->blockofs, iso->blocksize); |
| 709 |
if (ret < iso->blocksize) |
| 710 |
{ |
| 711 |
printf("read error %d\n", ret); |
| 712 |
return -1; |
| 713 |
} |
| 714 |
|
| 715 |
return 0; |
| 716 |
} |
| 717 |
|
| 718 |
int _isoReadBlockZ(isoFile *iso, u8 *dst, int lsn) |
| 719 |
{ |
| 720 |
u32 pos, p; |
| 721 |
uLongf size; |
| 722 |
u8 Zbuf[CD_FRAMESIZE_RAW*2]; |
| 723 |
int ret; |
| 724 |
|
| 725 |
// printf("_isoReadBlockZ %d, %d\n", lsn, iso->blocksize); |
| 726 |
pos = *(unsigned long*) & iso->Ztable[lsn * 6]; |
| 727 |
p = *(unsigned short*) & iso->Ztable[lsn * 6 + 4]; |
| 728 |
// printf("%d, %d\n", pos, p); |
| 729 |
_seekfile(iso->handle, pos, SEEK_SET); |
| 730 |
ret = _readfile(iso->handle, Zbuf, p); |
| 731 |
if (ret < p) |
| 732 |
{ |
| 733 |
printf("error reading block!!\n"); |
| 734 |
return -1; |
| 735 |
} |
| 736 |
|
| 737 |
size = CD_FRAMESIZE_RAW; |
| 738 |
uncompress(dst, &size, Zbuf, p); |
| 739 |
|
| 740 |
return 0; |
| 741 |
} |
| 742 |
|
| 743 |
int _isoReadBlockZ2(isoFile *iso, u8 *dst, int lsn) |
| 744 |
{ |
| 745 |
u32 pos, p; |
| 746 |
uLongf size; |
| 747 |
u8 Zbuf[16*1024]; |
| 748 |
int ret; |
| 749 |
|
| 750 |
// printf("_isoReadBlockZ2 %d, %d\n", lsn, iso->blocksize); |
| 751 |
pos = *(u32*) & iso->Ztable[lsn*8]; |
| 752 |
p = *(u32*) & iso->Ztable[lsn*8+4]; |
| 753 |
// printf("%d, %d\n", pos, p); |
| 754 |
_seekfile(iso->handle, pos, SEEK_SET); |
| 755 |
ret = _readfile(iso->handle, Zbuf, p); |
| 756 |
if (ret < p) |
| 757 |
{ |
| 758 |
printf("error reading block!!\n"); |
| 759 |
return -1; |
| 760 |
} |
| 761 |
|
| 762 |
size = iso->blocksize; |
| 763 |
uncompress(dst + iso->blockofs, &size, Zbuf, p); |
| 764 |
|
| 765 |
return 0; |
| 766 |
} |
| 767 |
|
| 768 |
int _isoReadBlockBZ2(isoFile *iso, u8 *dst, int lsn) |
| 769 |
{ |
| 770 |
u32 pos, p; |
| 771 |
u32 size; |
| 772 |
u8 Zbuf[64*1024]; |
| 773 |
int ret; |
| 774 |
|
| 775 |
if ((lsn / 16) == iso->buflsn) |
| 776 |
{ |
| 777 |
memset(dst, 0, iso->blockofs); |
| 778 |
memcpy(dst + iso->blockofs, iso->buffer + (iso->blocksize*(lsn&0xf)), iso->blocksize); |
| 779 |
return 0; |
| 780 |
} |
| 781 |
|
| 782 |
iso->buflsn = lsn / 16; |
| 783 |
// printf("_isoReadBlockBZ2 %d, %d\n", lsn, iso->blocksize); |
| 784 |
pos = *(u32*) & iso->Ztable[(lsn/16)*8]; |
| 785 |
p = *(u32*) & iso->Ztable[(lsn/16)*8+4]; |
| 786 |
// printf("%d, %d\n", pos, p); |
| 787 |
_seekfile(iso->handle, pos, SEEK_SET); |
| 788 |
ret = _readfile(iso->handle, Zbuf, p); |
| 789 |
|
| 790 |
if (ret < p) |
| 791 |
{ |
| 792 |
printf("error reading block!!\n"); |
| 793 |
return -1; |
| 794 |
} |
| 795 |
|
| 796 |
size = iso->blocksize * 64; |
| 797 |
ret = BZ2_bzBuffToBuffDecompress((s8*)iso->buffer, &size, (s8*)Zbuf, p, 0, 0); |
| 798 |
|
| 799 |
if (ret != BZ_OK) |
| 800 |
{ |
| 801 |
printf("_isoReadBlockBZ2 %d, %d\n", lsn, iso->blocksize); |
| 802 |
printf("%d, %d\n", pos, p); |
| 803 |
printf("error on BZ2: %d\n", ret); |
| 804 |
} |
| 805 |
|
| 806 |
memset(dst, 0, iso->blockofs); |
| 807 |
memcpy(dst + iso->blockofs, iso->buffer + (iso->blocksize*(lsn&0xf)), iso->blocksize); |
| 808 |
|
| 809 |
return 0; |
| 810 |
} |
| 811 |
|
| 812 |
int _isoReadBlockD(isoFile *iso, u8 *dst, int lsn) |
| 813 |
{ |
| 814 |
int ret; |
| 815 |
int i; |
| 816 |
|
| 817 |
// printf("_isoReadBlockD %d, blocksize=%d, blockofs=%d\n", lsn, iso->blocksize, iso->blockofs); |
| 818 |
memset(dst, 0, iso->blockofs); |
| 819 |
for (i = 0; i < iso->dtablesize;i++) |
| 820 |
{ |
| 821 |
if (iso->dtable[i] != lsn) continue; |
| 822 |
|
| 823 |
_seekfile(iso->handle, 16 + i*(iso->blocksize + 4) + 4, SEEK_SET); |
| 824 |
ret = _readfile(iso->handle, dst + iso->blockofs, iso->blocksize); |
| 825 |
if (ret < iso->blocksize) return -1; |
| 826 |
|
| 827 |
return 0; |
| 828 |
} |
| 829 |
printf("block %d not found in dump\n", lsn); |
| 830 |
|
| 831 |
return -1; |
| 832 |
} |
| 833 |
|
| 834 |
int _isoReadBlockM(isoFile *iso, u8 *dst, int lsn) |
| 835 |
{ |
| 836 |
u64 ofs; |
| 837 |
int ret; |
| 838 |
int i; |
| 839 |
|
| 840 |
for (i = 0; i < 8; i++) |
| 841 |
{ |
| 842 |
if (lsn >= iso->multih[i].slsn && |
| 843 |
lsn <= iso->multih[i].elsn) |
| 844 |
{ |
| 845 |
break; |
| 846 |
} |
| 847 |
} |
| 848 |
if (i == 8) return -1; |
| 849 |
|
| 850 |
ofs = (u64)(lsn - iso->multih[i].slsn) * iso->blocksize + iso->offset; |
| 851 |
// printf("_isoReadBlock %d, blocksize=%d, blockofs=%d\n", lsn, iso->blocksize, iso->blockofs); |
| 852 |
memset(dst, 0, iso->blockofs); |
| 853 |
_seekfile(iso->multih[i].handle, ofs, SEEK_SET); |
| 854 |
ret = _readfile(iso->multih[i].handle, dst + iso->blockofs, iso->blocksize); |
| 855 |
|
| 856 |
if (ret < iso->blocksize) |
| 857 |
{ |
| 858 |
printf("read error %d\n", ret); |
| 859 |
return -1; |
| 860 |
} |
| 861 |
|
| 862 |
return 0; |
| 863 |
} |
| 864 |
|
| 865 |
int isoReadBlock(isoFile *iso, u8 *dst, int lsn) |
| 866 |
{ |
| 867 |
int ret; |
| 868 |
|
| 869 |
if (lsn > iso->blocks) |
| 870 |
{ |
| 871 |
printf("isoReadBlock: %d > %d\n", lsn, iso->blocks); |
| 872 |
return -1; |
| 873 |
} |
| 874 |
|
| 875 |
if (iso->flags & ISOFLAGS_Z) |
| 876 |
ret = _isoReadBlockZ(iso, dst, lsn); |
| 877 |
else if (iso->flags & ISOFLAGS_Z2) |
| 878 |
ret = _isoReadBlockZ2(iso, dst, lsn); |
| 879 |
else if (iso->flags & ISOFLAGS_BLOCKDUMP) |
| 880 |
ret = _isoReadBlockD(iso, dst, lsn); |
| 881 |
else if (iso->flags & ISOFLAGS_MULTI) |
| 882 |
ret = _isoReadBlockM(iso, dst, lsn); |
| 883 |
else if (iso->flags & ISOFLAGS_BZ2) |
| 884 |
ret = _isoReadBlockBZ2(iso, dst, lsn); |
| 885 |
else |
| 886 |
ret = _isoReadBlock(iso, dst, lsn); |
| 887 |
|
| 888 |
if (ret == -1) return ret; |
| 889 |
|
| 890 |
if (iso->type == ISOTYPE_CD) |
| 891 |
{ |
| 892 |
LSNtoMSF(dst + 12, lsn); |
| 893 |
dst[15] = 2; |
| 894 |
} |
| 895 |
|
| 896 |
return 0; |
| 897 |
} |
| 898 |
|
| 899 |
|
| 900 |
int _isoWriteBlock(isoFile *iso, u8 *src, int lsn) |
| 901 |
{ |
| 902 |
u64 ofs = (u64)lsn * iso->blocksize + iso->offset; |
| 903 |
int ret; |
| 904 |
|
| 905 |
// printf("_isoWriteBlock %d (ofs=%d)\n", iso->blocksize, ofs); |
| 906 |
_seekfile(iso->handle, ofs, SEEK_SET); |
| 907 |
ret = _writefile(iso->handle, src + iso->blockofs, iso->blocksize); |
| 908 |
// printf("_isoWriteBlock %d\n", ret); |
| 909 |
if (ret < iso->blocksize) return -1; |
| 910 |
|
| 911 |
return 0; |
| 912 |
} |
| 913 |
|
| 914 |
int _isoWriteBlockZ(isoFile *iso, u8 *src, int lsn) |
| 915 |
{ |
| 916 |
u32 pos; |
| 917 |
uLongf size; |
| 918 |
u8 Zbuf[CD_FRAMESIZE_RAW]; |
| 919 |
int ret; |
| 920 |
|
| 921 |
// printf("_isoWriteBlockZ %d\n", iso->blocksize); |
| 922 |
size = 2352; |
| 923 |
compress(Zbuf, &size, src, 2352); |
| 924 |
// printf("_isoWriteBlockZ %d\n", size); |
| 925 |
|
| 926 |
pos = (u32)_tellfile(iso->handle); |
| 927 |
ret = _writefile(iso->htable, &pos, 4); |
| 928 |
if (ret < 4) return -1; |
| 929 |
ret = _writefile(iso->htable, &size, 2); |
| 930 |
if (ret < 2) return -1; |
| 931 |
|
| 932 |
ret = _writefile(iso->handle, Zbuf, size); |
| 933 |
// printf("_isoWriteBlockZ %d\n", ret); |
| 934 |
if (ret < size) |
| 935 |
{ |
| 936 |
printf("error writing block!!\n"); |
| 937 |
return -1; |
| 938 |
} |
| 939 |
|
| 940 |
return 0; |
| 941 |
} |
| 942 |
|
| 943 |
int _isoWriteBlockZ2(isoFile *iso, u8 *src, int lsn) |
| 944 |
{ |
| 945 |
uLongf size; |
| 946 |
u8 Zbuf[1024*16]; |
| 947 |
int ret; |
| 948 |
|
| 949 |
// printf("_isoWriteBlockZ %d\n", iso->blocksize); |
| 950 |
size = 1024 * 16; |
| 951 |
compress(Zbuf, &size, src + iso->blockofs, iso->blocksize); |
| 952 |
// printf("_isoWriteBlockZ %d\n", size); |
| 953 |
|
| 954 |
ret = _writefile(iso->htable, (u8*) & size, 4); |
| 955 |
if (ret < 4) return -1; |
| 956 |
ret = _writefile(iso->handle, Zbuf, size); |
| 957 |
// printf("_isoWriteBlockZ %d\n", ret); |
| 958 |
if (ret < size) |
| 959 |
{ |
| 960 |
printf("error writing block!!\n"); |
| 961 |
return -1; |
| 962 |
} |
| 963 |
|
| 964 |
return 0; |
| 965 |
} |
| 966 |
|
| 967 |
int _isoWriteBlockD(isoFile *iso, u8 *src, int lsn) |
| 968 |
{ |
| 969 |
int ret; |
| 970 |
|
| 971 |
// printf("_isoWriteBlock %d (ofs=%d)\n", iso->blocksize, ofs); |
| 972 |
ret = _writefile(iso->handle, &lsn, 4); |
| 973 |
if (ret < 4) return -1; |
| 974 |
ret = _writefile(iso->handle, src + iso->blockofs, iso->blocksize); |
| 975 |
// printf("_isoWriteBlock %d\n", ret); |
| 976 |
if (ret < iso->blocksize) return -1; |
| 977 |
|
| 978 |
return 0; |
| 979 |
} |
| 980 |
|
| 981 |
int _isoWriteBlockBZ2(isoFile *iso, u8 *src, int lsn) |
| 982 |
{ |
| 983 |
u32 size; |
| 984 |
u8 Zbuf[64*1024]; |
| 985 |
int blocks; |
| 986 |
int ret; |
| 987 |
|
| 988 |
memcpy(iso->buffer + (iso->blocksize*(lsn&0xf)), src + iso->blockofs, iso->blocksize); |
| 989 |
|
| 990 |
if (lsn == (iso->blocks - 1)) |
| 991 |
{ |
| 992 |
blocks = (lsn & 0xf) + 1; |
| 993 |
} |
| 994 |
else |
| 995 |
{ |
| 996 |
blocks = 16; |
| 997 |
if ((lsn & 0xf) != 0xf) return 0; |
| 998 |
} |
| 999 |
|
| 1000 |
// printf("_isoWriteBlockBZ2 %d\n", iso->blocksize); |
| 1001 |
size = 64 * 1024; |
| 1002 |
ret = BZ2_bzBuffToBuffCompress((s8*)Zbuf, (u32*) & size, (s8*)iso->buffer, iso->blocksize * blocks, 9, 0, 30); |
| 1003 |
|
| 1004 |
if (ret != BZ_OK) |
| 1005 |
{ |
| 1006 |
printf("error on BZ2: %d\n", ret); |
| 1007 |
} |
| 1008 |
|
| 1009 |
// printf("_isoWriteBlockBZ2 %d\n", size); |
| 1010 |
|
| 1011 |
ret = _writefile(iso->htable, (u8*) & size, 4); |
| 1012 |
if (ret < 4) return -1; |
| 1013 |
ret = _writefile(iso->handle, Zbuf, size); |
| 1014 |
// printf("_isoWriteBlockZ %d\n", ret); |
| 1015 |
|
| 1016 |
if (ret < size) |
| 1017 |
{ |
| 1018 |
printf("error writing block!!\n"); |
| 1019 |
return -1; |
| 1020 |
} |
| 1021 |
|
| 1022 |
return 0; |
| 1023 |
} |
| 1024 |
|
| 1025 |
int isoWriteBlock(isoFile *iso, u8 *src, int lsn) |
| 1026 |
{ |
| 1027 |
int ret; |
| 1028 |
|
| 1029 |
if (iso->flags & ISOFLAGS_Z) |
| 1030 |
ret = _isoWriteBlockZ(iso, src, lsn); |
| 1031 |
else if (iso->flags & ISOFLAGS_Z2) |
| 1032 |
ret = _isoWriteBlockZ2(iso, src, lsn); |
| 1033 |
else if (iso->flags & ISOFLAGS_BLOCKDUMP) |
| 1034 |
ret = _isoWriteBlockD(iso, src, lsn); |
| 1035 |
else if (iso->flags & ISOFLAGS_BZ2) |
| 1036 |
ret = _isoWriteBlockBZ2(iso, src, lsn); |
| 1037 |
else |
| 1038 |
ret = _isoWriteBlock(iso, src, lsn); |
| 1039 |
|
| 1040 |
if (ret == -1) return ret; |
| 1041 |
return 0; |
| 1042 |
} |
| 1043 |
|
| 1044 |
void isoClose(isoFile *iso) |
| 1045 |
{ |
| 1046 |
if (iso->handle) _closefile(iso->handle); |
| 1047 |
if (iso->htable) _closefile(iso->htable); |
| 1048 |
if (iso->buffer) free(iso->buffer); |
| 1049 |
|
| 1050 |
free(iso); |
| 1051 |
} |
| 1052 |
|
Parent Directory
| 
Revision Log