macbin3.c 24 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764
  1. /****************************************************************
  2. MacBinaryIII.c
  3. Copyright 1997 Christopher Evans (cevans@poppybank.com)
  4. Basic encoding and decoding of Macintosh files to the
  5. MacBinary III spec.
  6. This file is part of the MacBinaryIII_src_C.sit package
  7. see macbin3.h for more information
  8. ****************************************************************/
  9. /*****************************************************************************/
  10. /* Includes */
  11. /*****************************************************************************/
  12. #include <string.h>
  13. #include <stdio.h>
  14. #include "macbin3.h"
  15. /*****************************************************************************/
  16. /* Macros, typedefs */
  17. /*****************************************************************************/
  18. /* source (the macbinary file) will be deleted */
  19. #define DELETE_MACBINARY_SOURCE
  20. /* enable encoding
  21. #define INCLUDE_ENCODE_MACBINARY */
  22. /* enable decoding */
  23. #define INCLUDE_DECODE_MACBINARY
  24. /* include own CRC 32 Bit Calculation
  25. #define INCLUDE_CRC32CALC */
  26. /* produce some helpful printouts for tracing
  27. #define TRACE_MACBINARY */
  28. #define LONG_AT_OFFSET(data, offset) *((long *)((unsigned char *)&data[offset]))
  29. #define WORD_AT_OFFSET(data, offset) *((Word *)((unsigned char *)&data[offset]))
  30. #define BYTE_AT_OFFSET(data, offset) *((Byte *)((unsigned char *)&data[offset]))
  31. #define PTR_AT_OFFSET(data, offset) ((Ptr)((unsigned char *)&data[offset]))
  32. typedef unsigned short Word;
  33. #define kOldVersionOffset 0
  34. #define kFileNameLengthOffset 1
  35. #define kFileNameOffset 2
  36. #define kFileTypeOffset 65
  37. #define kFileCreatorOffset 69
  38. #define kFinderFlagsHiOffset 73
  39. #define kVersionCheckZero 74
  40. #define kFileVPositionOffset 75
  41. #define kFileHPositionOffset 77
  42. #define kFileFolderIDOffset 79
  43. #define kProtectedFlagOffset 81
  44. #define kVersionOneCheckZero 82
  45. #define kDataForkLengthOffset 83
  46. #define kResourceForkLengthOffset 87
  47. #define kFileCreationDateOffset 91
  48. #define kFileModificationDateOffset 95
  49. #define kGetInfoCommentLengthOffset 99
  50. #define kFinderFlagsLowOffset 101
  51. #define kMacbinarySigOffset 102
  52. #define kFilenameScriptOffset 106
  53. #define kExtendedFinderFlagsOffset 107
  54. #define kTotalFileLengthOffset 116
  55. #define kSecondaryHeaderLengthOffset 120
  56. #define kCurrentVersionOffset 122
  57. #define kMinimumVersionOffset 123
  58. #define kCRCOffset 124
  59. #define kResourceForkMaxLen (1024 * 1024 * 16)
  60. /*****************************************************************************/
  61. /* Module level Vars */
  62. /*****************************************************************************/
  63. #ifdef INCLUDE_CRC32CALC
  64. static unsigned long crc_table[256] = {
  65. 0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
  66. 0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,
  67. 0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,
  68. 0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
  69. 0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L,
  70. 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L,
  71. 0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L,
  72. 0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
  73. 0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L,
  74. 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL,
  75. 0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L,
  76. 0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
  77. 0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L,
  78. 0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL,
  79. 0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL,
  80. 0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
  81. 0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL,
  82. 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L,
  83. 0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L,
  84. 0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
  85. 0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL,
  86. 0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L,
  87. 0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L,
  88. 0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
  89. 0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L,
  90. 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L,
  91. 0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L,
  92. 0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
  93. 0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L,
  94. 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL,
  95. 0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL,
  96. 0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
  97. 0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L,
  98. 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL,
  99. 0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL,
  100. 0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
  101. 0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL,
  102. 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L,
  103. 0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL,
  104. 0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
  105. 0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL,
  106. 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L,
  107. 0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L,
  108. 0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
  109. 0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L,
  110. 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L,
  111. 0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L,
  112. 0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
  113. 0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L,
  114. 0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L,
  115. 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL,
  116. 0x2d02ef8dL
  117. };
  118. #endif
  119. /*****************************************************************************/
  120. /* Prototypes */
  121. /*****************************************************************************/
  122. static Boolean HeaderIsMacBinary(char *header,
  123. Word *version,
  124. long maxDataLen);
  125. static Boolean FSpExists(FSSpec *file);
  126. #ifdef INCLUDE_CRC32CALC
  127. static unsigned long crc32(unsigned long seed, unsigned char *p, size_t len);
  128. #else
  129. extern unsigned long crc32(unsigned long seed, unsigned char *p, size_t len);
  130. #endif
  131. static OSErr GetDesktopComment(FSSpec *file, char*comment, long *length);
  132. static OSErr SetDesktopComment(FSSpec *file, char*comment, long length);
  133. static Handle EncodeMacbinary(FSSpec *file);
  134. static OSErr DecodeMacBinary(Handle data, FSSpec *destination);
  135. /*****************************************************************************/
  136. /* Functions */
  137. /*****************************************************************************/
  138. #ifdef INCLUDE_CRC32CALC
  139. /* taken from the mcvert source code */
  140. static unsigned long crc32(unsigned long seed, unsigned char *p, size_t len)
  141. {
  142. unsigned long hold; /* crc computed so far */
  143. size_t i; /* index into data */
  144. hold = seed; /* start with seed */
  145. for (i = 0; i < len; i++, p++)
  146. {
  147. hold ^= (*p << 8);
  148. hold = (hold << 8) ^ crc_table[(unsigned char) (hold >> 8)];
  149. }
  150. return (hold);
  151. } /* crc32() */
  152. #endif
  153. static Boolean FSpExists(FSSpec *file)
  154. {
  155. FInfo fndrInfo;
  156. return FSpGetFInfo(file, &fndrInfo) == noErr;
  157. }
  158. static Boolean HeaderIsMacBinary(char *header,
  159. Word *version,
  160. long maxDataLen)
  161. {
  162. Boolean isIt = false;
  163. unsigned long resourceForkLength, dataForkLength, df_rf_length;
  164. short commentLength;
  165. Byte mbVersion;
  166. #ifdef TRACE_MACBINARY
  167. printf("\n\n Function HeaderIsMacBinary(): ");
  168. #endif
  169. if(LONG_AT_OFFSET(header, kMacbinarySigOffset) == 'mBIN')
  170. {
  171. isIt = true;
  172. mbVersion = 130;
  173. }
  174. else
  175. if(BYTE_AT_OFFSET(header, kVersionCheckZero) == 0 &&
  176. BYTE_AT_OFFSET(header, kOldVersionOffset) == 0)
  177. {
  178. if(WORD_AT_OFFSET(header, kCRCOffset) ==
  179. crc32(0, (unsigned char*) &header, 124))
  180. {
  181. isIt = true;
  182. mbVersion = 129;
  183. }
  184. else
  185. {
  186. if(BYTE_AT_OFFSET(header, kVersionOneCheckZero) == 0)
  187. {
  188. isIt = true;
  189. mbVersion = 128;
  190. }
  191. }
  192. }
  193. #ifdef TRACE_MACBINARY
  194. printf("\n mbVersion: %d",mbVersion);
  195. #endif
  196. resourceForkLength = LONG_AT_OFFSET(header, kResourceForkLengthOffset);
  197. dataForkLength = LONG_AT_OFFSET(header, kDataForkLengthOffset);
  198. commentLength = WORD_AT_OFFSET(header, kGetInfoCommentLengthOffset);
  199. df_rf_length = dataForkLength + resourceForkLength;
  200. #ifdef TRACE_MACBINARY
  201. printf("\n resourceForkLength: %d",resourceForkLength);
  202. printf("\n dataForkLength: %d",dataForkLength);
  203. printf("\n commentLength: %d",commentLength);
  204. printf("\n df_rf_length: %d",df_rf_length);
  205. printf("\n 1. isIt: bool: %d",
  206. isIt);
  207. printf("\n BYTE_AT_OFFSET(header, kFileNameLengthOffset) >= 1 bool: %d",
  208. BYTE_AT_OFFSET(header, kFileNameLengthOffset) >= 1);
  209. printf("\n BYTE_AT_OFFSET(header, kFileNameLengthOffset) <= 31 bool: %d",
  210. BYTE_AT_OFFSET(header, kFileNameLengthOffset) <= 31);
  211. printf("\n dataForkLength >= 0 bool: %d",
  212. dataForkLength >= 0);
  213. printf("\n resourceForkLength >= 0 bool: %d",
  214. resourceForkLength >= 0);
  215. printf("\n resourceForkLength <= 0x%8x bool: %d",
  216. kResourceForkMaxLen, resourceForkLength <= kResourceForkMaxLen);
  217. printf("\n dataForkLength <= %8u bool: %d",
  218. maxDataLen, dataForkLength <= maxDataLen);
  219. printf("\n df_rf_length > 0 bool: %d",
  220. df_rf_length > 0);
  221. printf("\n df_rf_length <= %8u bool: %d",
  222. maxDataLen, df_rf_length <= maxDataLen);
  223. #endif
  224. if(isIt &&
  225. BYTE_AT_OFFSET(header, kFileNameLengthOffset) >= 1 &&
  226. BYTE_AT_OFFSET(header, kFileNameLengthOffset) <= 31 &&
  227. dataForkLength >= 0 &&
  228. resourceForkLength >= 0 &&
  229. resourceForkLength <= kResourceForkMaxLen &&
  230. df_rf_length > 0 &&
  231. df_rf_length <= maxDataLen)
  232. {
  233. isIt = true;
  234. }
  235. else
  236. isIt = false; /* something is wrong with the header */
  237. #ifdef TRACE_MACBINARY
  238. printf("\n 2. isIt: bool: %d",
  239. isIt);
  240. #endif
  241. if(version)
  242. *version = mbVersion;
  243. return isIt;
  244. }
  245. Boolean FSpIsMacBinary(FSSpec *file)
  246. {
  247. char header[128];
  248. short dfRefNum = 0;
  249. OSErr err;
  250. long size;
  251. Boolean isIt = false;
  252. CInfoPBRec pb;
  253. long maxDataLen;
  254. memset(&pb, 0, sizeof(CInfoPBRec));
  255. pb.hFileInfo.ioNamePtr = file->name;
  256. pb.hFileInfo.ioVRefNum = file->vRefNum;
  257. pb.hFileInfo.ioFDirIndex = 0; /* query a file */
  258. pb.hFileInfo.ioDirID = file->parID;
  259. err = PBGetCatInfo(&pb,false);
  260. maxDataLen = pb.hFileInfo.ioFlLgLen;
  261. memset(header, 0, 128);
  262. err = FSpOpenDF(file, fsRdPerm, &dfRefNum);
  263. if(!err)
  264. {
  265. err = GetEOF(dfRefNum, &size);
  266. if(size > 128)
  267. {
  268. size = 128;
  269. err = FSRead(dfRefNum, &size, &header);
  270. if(err == noErr)
  271. {
  272. isIt = HeaderIsMacBinary(header, nil, maxDataLen);
  273. }
  274. }
  275. FSClose(dfRefNum);
  276. }
  277. return isIt;
  278. }
  279. #ifdef INCLUDE_ENCODE_MACBINARY
  280. static OSErr GetDesktopComment(FSSpec *file, char*comment, long *length)
  281. {
  282. DTPBRec pb;
  283. OSErr err;
  284. pb.ioCompletion = nil;
  285. pb.ioNamePtr = NULL;
  286. pb.ioVRefNum = file->vRefNum;
  287. err = PBDTGetPath(&pb);
  288. if(err == noErr)
  289. {
  290. pb.ioNamePtr = file->name;
  291. pb.ioDTBuffer = comment;
  292. pb.ioDirID = file->parID;
  293. err = PBDTGetComment(&pb, false);
  294. *length = pb.ioDTActCount;
  295. }
  296. return err;
  297. }
  298. OSErr EncodeMacbinaryFile(FSSpec *file)
  299. {
  300. Handle data;
  301. OSErr err = paramErr;
  302. short dfRefNum;
  303. data = EncodeMacbinary(file);
  304. if(data)
  305. {
  306. if(file->name[0] > 27)
  307. file->name[0] = 27;
  308. PtoCstr(file->name);
  309. strcat((char*)file->name, ".bin");
  310. CtoPstr((char *)file->name);
  311. FSpDelete(file);
  312. if(FSpCreate(file, 'dMB3', 'mBIN', smSystemScript) == noErr)
  313. {
  314. err = FSpOpenDF(file, fsWrPerm, &dfRefNum);
  315. if(err == noErr)
  316. {
  317. long inOutCount = GetHandleSize(data);
  318. HLock(data);
  319. err = FSWrite(dfRefNum,&inOutCount,*data);
  320. HUnlock(data);
  321. FSClose(dfRefNum);
  322. }
  323. }
  324. DisposeHandle(data);
  325. }
  326. return err;
  327. }
  328. static Handle EncodeMacbinary(FSSpec *file)
  329. {
  330. Handle result = nil;
  331. FInfo fndrInfo;
  332. FXInfo fndrXInfo;
  333. OSErr err;
  334. CInfoPBRec pb;
  335. short dfRefNum, rfRefNum;
  336. long ioCount;
  337. char buffer[128];
  338. char header[128];
  339. char comment[256];
  340. long resourceForkLength, dataForkLength, commentLength;
  341. memset(&header, 0, sizeof(header));
  342. err = FSpGetFInfo(file, &fndrInfo);
  343. memset(&pb, 0, sizeof(CInfoPBRec));
  344. pb.hFileInfo.ioNamePtr = file->name;
  345. pb.hFileInfo.ioVRefNum = file->vRefNum;
  346. pb.hFileInfo.ioFDirIndex = 0; //query a file
  347. pb.hFileInfo.ioDirID = file->parID;
  348. err = PBGetCatInfo(&pb,false);
  349. fndrXInfo = pb.hFileInfo.ioFlXFndrInfo;
  350. BYTE_AT_OFFSET(header, kFileNameLengthOffset) = file->name[0];
  351. BlockMoveData( &(file->name[1]),
  352. PTR_AT_OFFSET(header,
  353. kFileNameOffset),
  354. file->name[0]);
  355. LONG_AT_OFFSET(header, kFileTypeOffset) = fndrInfo.fdType;
  356. LONG_AT_OFFSET(header, kFileCreatorOffset) = fndrInfo.fdCreator;
  357. BYTE_AT_OFFSET(header, kFinderFlagsHiOffset) =
  358. (fndrInfo.fdFlags & 0xFF00) >> 8;
  359. BYTE_AT_OFFSET(header, kFinderFlagsLowOffset) =
  360. (fndrInfo.fdFlags & 0x00FF);
  361. WORD_AT_OFFSET(header, kFileVPositionOffset) = fndrInfo.fdLocation.v;
  362. WORD_AT_OFFSET(header, kFileHPositionOffset) = fndrInfo.fdLocation.h;
  363. WORD_AT_OFFSET(header, kFileFolderIDOffset) = fndrInfo.fdFldr;
  364. LONG_AT_OFFSET(header, kFileCreationDateOffset) = pb.hFileInfo.ioFlCrDat;
  365. LONG_AT_OFFSET(header, kFileModificationDateOffset) =
  366. pb.hFileInfo.ioFlMdDat;
  367. LONG_AT_OFFSET(header, kMacbinarySigOffset) = 'mBIN';
  368. BYTE_AT_OFFSET(header, kFilenameScriptOffset) = fndrXInfo.fdScript;
  369. BYTE_AT_OFFSET(header, kExtendedFinderFlagsOffset) = fndrXInfo.fdXFlags;
  370. LONG_AT_OFFSET(header, kTotalFileLengthOffset) = 0;
  371. WORD_AT_OFFSET(header, kSecondaryHeaderLengthOffset) = 0;
  372. WORD_AT_OFFSET(header, kCurrentVersionOffset) = 130;
  373. WORD_AT_OFFSET(header, kMinimumVersionOffset) = 129;
  374. err = FSpOpenDF(file,fsRdPerm,&dfRefNum);
  375. if(err == noErr)
  376. {
  377. err = GetEOF(dfRefNum,&dataForkLength);
  378. LONG_AT_OFFSET(header, kDataForkLengthOffset) = dataForkLength;
  379. }
  380. else
  381. {
  382. dfRefNum = 0;
  383. }
  384. err = FSpOpenRF(file,fsRdPerm,&rfRefNum);
  385. if(err == noErr)
  386. {
  387. err = GetEOF(rfRefNum,&resourceForkLength);
  388. LONG_AT_OFFSET(header, kResourceForkLengthOffset) = resourceForkLength;
  389. }
  390. else
  391. {
  392. rfRefNum = 0;
  393. }
  394. memset(comment, 0, 256);
  395. if(GetDesktopComment(file, comment, &commentLength) != noErr)
  396. commentLength = 0;
  397. WORD_AT_OFFSET(header, kGetInfoCommentLengthOffset) = commentLength;
  398. WORD_AT_OFFSET(header, kCRCOffset) =
  399. crc32( 0, (unsigned char*) &header, 124);
  400. result = TempNewHandle(0, &err);
  401. if(result)
  402. {
  403. err = PtrAndHand(&header,result,128);
  404. if(dfRefNum && dataForkLength)
  405. {
  406. err = noErr;
  407. while(dataForkLength > 0 && err == noErr)
  408. {
  409. ioCount = 128;
  410. err = FSRead(dfRefNum,&ioCount,&buffer);
  411. if(err == noErr || err == eofErr)
  412. err = PtrAndHand(&buffer,result,128);
  413. dataForkLength -= ioCount;
  414. }
  415. }
  416. if(rfRefNum && resourceForkLength)
  417. {
  418. err = noErr;
  419. while(resourceForkLength > 0 && err == noErr)
  420. {
  421. ioCount = 128;
  422. err = FSRead(rfRefNum,&ioCount,&buffer);
  423. if(err == noErr || err == eofErr)
  424. err = PtrAndHand(&buffer,result,128);
  425. resourceForkLength -= ioCount;
  426. }
  427. }
  428. if(commentLength)
  429. {
  430. PtrAndHand(&comment,result,commentLength);
  431. }
  432. }
  433. if(rfRefNum)
  434. FSClose(rfRefNum);
  435. if(dfRefNum)
  436. FSClose(dfRefNum);
  437. return result;
  438. }
  439. #endif /* INCLUDE_ENCODE_MACBINARY */
  440. #ifdef INCLUDE_DECODE_MACBINARY
  441. static OSErr SetDesktopComment(FSSpec *file, char*comment, long length)
  442. {
  443. DTPBRec pb;
  444. OSErr err;
  445. pb.ioCompletion = nil;
  446. pb.ioNamePtr = NULL;
  447. pb.ioVRefNum = file->vRefNum;
  448. err = PBDTGetPath(&pb);
  449. if(err == noErr)
  450. {
  451. pb.ioNamePtr = file->name;
  452. pb.ioDTBuffer = comment;
  453. pb.ioDirID = file->parID;
  454. pb.ioDTReqCount = length;
  455. err = PBDTSetComment(&pb, false);
  456. }
  457. return err;
  458. }
  459. OSErr DecodeMacBinaryFile(FSSpec *source)
  460. {
  461. Handle data = nil;
  462. OSErr err;
  463. short dfRefNum = 0;
  464. long size;
  465. FSSpec McBin_source;
  466. memcpy(McBin_source.name,source->name,source->name[0]+1);
  467. McBin_source.vRefNum = source->vRefNum;
  468. McBin_source.parID = source->parID;
  469. err = FSpOpenDF(source, fsRdPerm, &dfRefNum);
  470. if(!err)
  471. {
  472. err = GetEOF(dfRefNum, &size);
  473. data = TempNewHandle(size, &err);
  474. if(data)
  475. {
  476. HLock(data);
  477. err = FSRead(dfRefNum,&size,*data);
  478. HUnlock(data);
  479. }
  480. FSClose(dfRefNum);
  481. }
  482. if(data && err == noErr)
  483. {
  484. err = DecodeMacBinary(data, source);
  485. DisposeHandle(data);
  486. }
  487. #ifdef DELETE_MACBINARY_SOURCE
  488. if (err == noErr)
  489. err = FSpDelete(&McBin_source);
  490. #endif
  491. return err;
  492. }
  493. static OSErr DecodeMacBinary(Handle data, FSSpec *destination)
  494. {
  495. Handle result = nil;
  496. FInfo fndrInfo;
  497. OSErr err;
  498. CInfoPBRec pb;
  499. short dfRefNum, rfRefNum;
  500. long ioCount;
  501. char header[128];
  502. char comment[256];
  503. long resourceForkLength, dataForkLength, commentLength;
  504. Boolean isMacBinaryFile = false;
  505. short headerEnd = 128;
  506. long rfOffset;
  507. long maxDataLen;
  508. memset(&pb, 0, sizeof(CInfoPBRec));
  509. pb.hFileInfo.ioNamePtr = destination->name;
  510. pb.hFileInfo.ioVRefNum = destination->vRefNum;
  511. pb.hFileInfo.ioFDirIndex = 0; /* query a file */
  512. pb.hFileInfo.ioDirID = destination->parID;
  513. err = PBGetCatInfo(&pb,false);
  514. maxDataLen = pb.hFileInfo.ioFlLgLen;
  515. HLock(data);
  516. memcpy(header, *data, 128);
  517. /* already checked with FSpIsMacBinary() */
  518. isMacBinaryFile = HeaderIsMacBinary(header, nil, maxDataLen);;
  519. if(!isMacBinaryFile)
  520. return paramErr;
  521. if(WORD_AT_OFFSET(header, kSecondaryHeaderLengthOffset))
  522. {
  523. headerEnd = WORD_AT_OFFSET(header, kSecondaryHeaderLengthOffset);
  524. headerEnd = (headerEnd + 127) & ~127L;
  525. }
  526. resourceForkLength = LONG_AT_OFFSET(header, kResourceForkLengthOffset);
  527. dataForkLength = LONG_AT_OFFSET(header, kDataForkLengthOffset);
  528. commentLength = WORD_AT_OFFSET(header, kGetInfoCommentLengthOffset);
  529. memcpy( destination->name,
  530. PTR_AT_OFFSET(header,
  531. kFileNameLengthOffset),
  532. BYTE_AT_OFFSET(header,
  533. kFileNameLengthOffset));
  534. fndrInfo.fdType = LONG_AT_OFFSET(header, kFileTypeOffset);
  535. fndrInfo.fdCreator = LONG_AT_OFFSET(header, kFileCreatorOffset);
  536. fndrInfo.fdFlags = BYTE_AT_OFFSET(header, kFinderFlagsHiOffset);
  537. fndrInfo.fdFlags << 8;
  538. fndrInfo.fdFlags |= BYTE_AT_OFFSET(header, kFinderFlagsLowOffset);
  539. fndrInfo.fdLocation.v = WORD_AT_OFFSET(header, kFileVPositionOffset);
  540. fndrInfo.fdLocation.h = WORD_AT_OFFSET(header, kFileHPositionOffset);
  541. fndrInfo.fdFldr = WORD_AT_OFFSET(header, kFileFolderIDOffset);
  542. /*
  543. index = 1;
  544. checkFile = *destination;
  545. while(FSpExists(&checkFile))
  546. {
  547. checkFile = *destination;
  548. if(index < 10)
  549. checkFile.name[++checkFile.name[0]] = '0' + index;
  550. else
  551. checkFile.name[++checkFile.name[0]] = ('a' - 10) + index;
  552. index++;
  553. }
  554. *destination = checkFile;
  555. */
  556. err = FSpCreate(destination,
  557. fndrInfo.fdCreator,
  558. fndrInfo.fdType,
  559. smSystemScript);
  560. dfRefNum = 0;
  561. if(err == noErr)
  562. {
  563. err = FSpOpenDF(destination, fsRdWrPerm, &dfRefNum);
  564. }
  565. if(err == noErr && dfRefNum)
  566. {
  567. ioCount = dataForkLength;
  568. err = FSWrite(dfRefNum,&ioCount,*data + headerEnd);
  569. FSClose(dfRefNum);
  570. }
  571. rfRefNum = 0;
  572. if(err == noErr)
  573. {
  574. err = FSpOpenRF(destination, fsRdWrPerm, &rfRefNum);
  575. }
  576. rfOffset = headerEnd + dataForkLength;
  577. rfOffset = (rfOffset + 127) & ~127L;
  578. if(err == noErr && rfRefNum)
  579. {
  580. ioCount = resourceForkLength;
  581. err = FSWrite(rfRefNum,&ioCount,*data + rfOffset);
  582. FSClose(rfRefNum);
  583. }
  584. rfOffset += resourceForkLength;
  585. rfOffset = (rfOffset + 127) & ~127L;
  586. if(err == noErr)
  587. {
  588. FSpSetFInfo(destination,&fndrInfo);
  589. memset(&pb, 0, sizeof(CInfoPBRec));
  590. pb.hFileInfo.ioNamePtr = destination->name;
  591. pb.hFileInfo.ioVRefNum = destination->vRefNum;
  592. pb.hFileInfo.ioFDirIndex = 0; /* query a file */
  593. pb.hFileInfo.ioDirID = destination->parID;
  594. err = PBGetCatInfo(&pb,false);
  595. if(err == noErr)
  596. {
  597. pb.hFileInfo.ioDirID = destination->parID;
  598. pb.hFileInfo.ioFlCrDat =
  599. LONG_AT_OFFSET(header, kFileCreationDateOffset);
  600. pb.hFileInfo.ioFlMdDat =
  601. LONG_AT_OFFSET(header, kFileModificationDateOffset);
  602. pb.hFileInfo.ioFlXFndrInfo.fdXFlags =
  603. BYTE_AT_OFFSET(header, kExtendedFinderFlagsOffset);
  604. pb.hFileInfo.ioFlXFndrInfo.fdScript =
  605. BYTE_AT_OFFSET(header, kFilenameScriptOffset);
  606. err = PBSetCatInfo(&pb, false);
  607. }
  608. if(commentLength)
  609. {
  610. memcpy(comment,*data + rfOffset, commentLength);
  611. SetDesktopComment(destination, comment, commentLength);
  612. }
  613. }
  614. HUnlock(data);
  615. return err;
  616. }
  617. #endif /* INCLUDE_DECODE_MACBINARY */