iowin32.c 14 KB

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  1. /* iowin32.c -- IO base function header for compress/uncompress .zip
  2. Version 1.1, February 14h, 2010
  3. part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
  4. Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
  5. Modifications for Zip64 support
  6. Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
  7. For more info read MiniZip_info.txt
  8. */
  9. #include <stdlib.h>
  10. #include "zlib.h"
  11. #include "ioapi.h"
  12. #include "iowin32.h"
  13. #ifndef INVALID_HANDLE_VALUE
  14. #define INVALID_HANDLE_VALUE (0xFFFFFFFF)
  15. #endif
  16. #ifndef INVALID_SET_FILE_POINTER
  17. #define INVALID_SET_FILE_POINTER ((DWORD)-1)
  18. #endif
  19. voidpf ZCALLBACK win32_open_file_func OF((voidpf opaque, const char* filename, int mode));
  20. uLong ZCALLBACK win32_read_file_func OF((voidpf opaque, voidpf stream, void* buf, uLong size));
  21. uLong ZCALLBACK win32_write_file_func OF((voidpf opaque, voidpf stream, const void* buf, uLong size));
  22. ZPOS64_T ZCALLBACK win32_tell64_file_func OF((voidpf opaque, voidpf stream));
  23. long ZCALLBACK win32_seek64_file_func OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
  24. int ZCALLBACK win32_close_file_func OF((voidpf opaque, voidpf stream));
  25. int ZCALLBACK win32_error_file_func OF((voidpf opaque, voidpf stream));
  26. typedef struct
  27. {
  28. HANDLE hf;
  29. int error;
  30. } WIN32FILE_IOWIN;
  31. static void win32_translate_open_mode(int mode,
  32. DWORD* lpdwDesiredAccess,
  33. DWORD* lpdwCreationDisposition,
  34. DWORD* lpdwShareMode,
  35. DWORD* lpdwFlagsAndAttributes)
  36. {
  37. *lpdwDesiredAccess = *lpdwShareMode = *lpdwFlagsAndAttributes = *lpdwCreationDisposition = 0;
  38. if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
  39. {
  40. *lpdwDesiredAccess = GENERIC_READ;
  41. *lpdwCreationDisposition = OPEN_EXISTING;
  42. *lpdwShareMode = FILE_SHARE_READ;
  43. }
  44. else if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
  45. {
  46. *lpdwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
  47. *lpdwCreationDisposition = OPEN_EXISTING;
  48. }
  49. else if (mode & ZLIB_FILEFUNC_MODE_CREATE)
  50. {
  51. *lpdwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
  52. *lpdwCreationDisposition = CREATE_ALWAYS;
  53. }
  54. }
  55. static voidpf win32_build_iowin(HANDLE hFile)
  56. {
  57. voidpf ret=NULL;
  58. if ((hFile != NULL) && (hFile != INVALID_HANDLE_VALUE))
  59. {
  60. WIN32FILE_IOWIN w32fiow;
  61. w32fiow.hf = hFile;
  62. w32fiow.error = 0;
  63. ret = malloc(sizeof(WIN32FILE_IOWIN));
  64. if (ret==NULL)
  65. CloseHandle(hFile);
  66. else
  67. *((WIN32FILE_IOWIN*)ret) = w32fiow;
  68. }
  69. return ret;
  70. }
  71. voidpf ZCALLBACK win32_open64_file_func (voidpf opaque,const void* filename,int mode)
  72. {
  73. const char* mode_fopen = NULL;
  74. DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
  75. HANDLE hFile = NULL;
  76. win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
  77. #ifdef IOWIN32_USING_WINRT_API
  78. #ifdef UNICODE
  79. if ((filename!=NULL) && (dwDesiredAccess != 0))
  80. hFile = CreateFile2((LPCTSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
  81. #else
  82. if ((filename!=NULL) && (dwDesiredAccess != 0))
  83. {
  84. WCHAR filenameW[FILENAME_MAX + 0x200 + 1];
  85. MultiByteToWideChar(CP_ACP,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200);
  86. hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
  87. }
  88. #endif
  89. #else
  90. if ((filename!=NULL) && (dwDesiredAccess != 0))
  91. hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
  92. #endif
  93. return win32_build_iowin(hFile);
  94. }
  95. voidpf ZCALLBACK win32_open64_file_funcA (voidpf opaque,const void* filename,int mode)
  96. {
  97. const char* mode_fopen = NULL;
  98. DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
  99. HANDLE hFile = NULL;
  100. win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
  101. #ifdef IOWIN32_USING_WINRT_API
  102. if ((filename!=NULL) && (dwDesiredAccess != 0))
  103. {
  104. WCHAR filenameW[FILENAME_MAX + 0x200 + 1];
  105. MultiByteToWideChar(CP_ACP,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200);
  106. hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
  107. }
  108. #else
  109. if ((filename!=NULL) && (dwDesiredAccess != 0))
  110. hFile = CreateFileA((LPCSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
  111. #endif
  112. return win32_build_iowin(hFile);
  113. }
  114. voidpf ZCALLBACK win32_open64_file_funcW (voidpf opaque,const void* filename,int mode)
  115. {
  116. const char* mode_fopen = NULL;
  117. DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
  118. HANDLE hFile = NULL;
  119. win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
  120. #ifdef IOWIN32_USING_WINRT_API
  121. if ((filename!=NULL) && (dwDesiredAccess != 0))
  122. hFile = CreateFile2((LPCWSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition,NULL);
  123. #else
  124. if ((filename!=NULL) && (dwDesiredAccess != 0))
  125. hFile = CreateFileW((LPCWSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
  126. #endif
  127. return win32_build_iowin(hFile);
  128. }
  129. voidpf ZCALLBACK win32_open_file_func (voidpf opaque,const char* filename,int mode)
  130. {
  131. const char* mode_fopen = NULL;
  132. DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
  133. HANDLE hFile = NULL;
  134. win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
  135. #ifdef IOWIN32_USING_WINRT_API
  136. #ifdef UNICODE
  137. if ((filename!=NULL) && (dwDesiredAccess != 0))
  138. hFile = CreateFile2((LPCTSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
  139. #else
  140. if ((filename!=NULL) && (dwDesiredAccess != 0))
  141. {
  142. WCHAR filenameW[FILENAME_MAX + 0x200 + 1];
  143. MultiByteToWideChar(CP_ACP,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200);
  144. hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
  145. }
  146. #endif
  147. #else
  148. if ((filename!=NULL) && (dwDesiredAccess != 0))
  149. hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
  150. #endif
  151. return win32_build_iowin(hFile);
  152. }
  153. uLong ZCALLBACK win32_read_file_func (voidpf opaque, voidpf stream, void* buf,uLong size)
  154. {
  155. uLong ret=0;
  156. HANDLE hFile = NULL;
  157. if (stream!=NULL)
  158. hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
  159. if (hFile != NULL)
  160. {
  161. if (!ReadFile(hFile, buf, size, &ret, NULL))
  162. {
  163. DWORD dwErr = GetLastError();
  164. if (dwErr == ERROR_HANDLE_EOF)
  165. dwErr = 0;
  166. ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
  167. }
  168. }
  169. return ret;
  170. }
  171. uLong ZCALLBACK win32_write_file_func (voidpf opaque,voidpf stream,const void* buf,uLong size)
  172. {
  173. uLong ret=0;
  174. HANDLE hFile = NULL;
  175. if (stream!=NULL)
  176. hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
  177. if (hFile != NULL)
  178. {
  179. if (!WriteFile(hFile, buf, size, &ret, NULL))
  180. {
  181. DWORD dwErr = GetLastError();
  182. if (dwErr == ERROR_HANDLE_EOF)
  183. dwErr = 0;
  184. ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
  185. }
  186. }
  187. return ret;
  188. }
  189. static BOOL MySetFilePointerEx(HANDLE hFile, LARGE_INTEGER pos, LARGE_INTEGER *newPos, DWORD dwMoveMethod)
  190. {
  191. #ifdef IOWIN32_USING_WINRT_API
  192. return SetFilePointerEx(hFile, pos, newPos, dwMoveMethod);
  193. #else
  194. LONG lHigh = pos.HighPart;
  195. DWORD dwNewPos = SetFilePointer(hFile, pos.LowPart, &lHigh, dwMoveMethod);
  196. BOOL fOk = TRUE;
  197. if (dwNewPos == 0xFFFFFFFF)
  198. if (GetLastError() != NO_ERROR)
  199. fOk = FALSE;
  200. if ((newPos != NULL) && (fOk))
  201. {
  202. newPos->LowPart = dwNewPos;
  203. newPos->HighPart = lHigh;
  204. }
  205. return fOk;
  206. #endif
  207. }
  208. long ZCALLBACK win32_tell_file_func (voidpf opaque,voidpf stream)
  209. {
  210. long ret=-1;
  211. HANDLE hFile = NULL;
  212. if (stream!=NULL)
  213. hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
  214. if (hFile != NULL)
  215. {
  216. LARGE_INTEGER pos;
  217. pos.QuadPart = 0;
  218. if (!MySetFilePointerEx(hFile, pos, &pos, FILE_CURRENT))
  219. {
  220. DWORD dwErr = GetLastError();
  221. ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
  222. ret = -1;
  223. }
  224. else
  225. ret=(long)pos.LowPart;
  226. }
  227. return ret;
  228. }
  229. ZPOS64_T ZCALLBACK win32_tell64_file_func (voidpf opaque, voidpf stream)
  230. {
  231. ZPOS64_T ret= (ZPOS64_T)-1;
  232. HANDLE hFile = NULL;
  233. if (stream!=NULL)
  234. hFile = ((WIN32FILE_IOWIN*)stream)->hf;
  235. if (hFile)
  236. {
  237. LARGE_INTEGER pos;
  238. pos.QuadPart = 0;
  239. if (!MySetFilePointerEx(hFile, pos, &pos, FILE_CURRENT))
  240. {
  241. DWORD dwErr = GetLastError();
  242. ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
  243. ret = (ZPOS64_T)-1;
  244. }
  245. else
  246. ret=pos.QuadPart;
  247. }
  248. return ret;
  249. }
  250. long ZCALLBACK win32_seek_file_func (voidpf opaque,voidpf stream,uLong offset,int origin)
  251. {
  252. DWORD dwMoveMethod=0xFFFFFFFF;
  253. HANDLE hFile = NULL;
  254. long ret=-1;
  255. if (stream!=NULL)
  256. hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
  257. switch (origin)
  258. {
  259. case ZLIB_FILEFUNC_SEEK_CUR :
  260. dwMoveMethod = FILE_CURRENT;
  261. break;
  262. case ZLIB_FILEFUNC_SEEK_END :
  263. dwMoveMethod = FILE_END;
  264. break;
  265. case ZLIB_FILEFUNC_SEEK_SET :
  266. dwMoveMethod = FILE_BEGIN;
  267. break;
  268. default: return -1;
  269. }
  270. if (hFile != NULL)
  271. {
  272. LARGE_INTEGER pos;
  273. pos.QuadPart = offset;
  274. if (!MySetFilePointerEx(hFile, pos, NULL, dwMoveMethod))
  275. {
  276. DWORD dwErr = GetLastError();
  277. ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
  278. ret = -1;
  279. }
  280. else
  281. ret=0;
  282. }
  283. return ret;
  284. }
  285. long ZCALLBACK win32_seek64_file_func (voidpf opaque, voidpf stream,ZPOS64_T offset,int origin)
  286. {
  287. DWORD dwMoveMethod=0xFFFFFFFF;
  288. HANDLE hFile = NULL;
  289. long ret=-1;
  290. if (stream!=NULL)
  291. hFile = ((WIN32FILE_IOWIN*)stream)->hf;
  292. switch (origin)
  293. {
  294. case ZLIB_FILEFUNC_SEEK_CUR :
  295. dwMoveMethod = FILE_CURRENT;
  296. break;
  297. case ZLIB_FILEFUNC_SEEK_END :
  298. dwMoveMethod = FILE_END;
  299. break;
  300. case ZLIB_FILEFUNC_SEEK_SET :
  301. dwMoveMethod = FILE_BEGIN;
  302. break;
  303. default: return -1;
  304. }
  305. if (hFile)
  306. {
  307. LARGE_INTEGER pos;
  308. pos.QuadPart = offset;
  309. if (!MySetFilePointerEx(hFile, pos, NULL, dwMoveMethod))
  310. {
  311. DWORD dwErr = GetLastError();
  312. ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
  313. ret = -1;
  314. }
  315. else
  316. ret=0;
  317. }
  318. return ret;
  319. }
  320. int ZCALLBACK win32_close_file_func (voidpf opaque, voidpf stream)
  321. {
  322. int ret=-1;
  323. if (stream!=NULL)
  324. {
  325. HANDLE hFile;
  326. hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
  327. if (hFile != NULL)
  328. {
  329. CloseHandle(hFile);
  330. ret=0;
  331. }
  332. free(stream);
  333. }
  334. return ret;
  335. }
  336. int ZCALLBACK win32_error_file_func (voidpf opaque,voidpf stream)
  337. {
  338. int ret=-1;
  339. if (stream!=NULL)
  340. {
  341. ret = ((WIN32FILE_IOWIN*)stream) -> error;
  342. }
  343. return ret;
  344. }
  345. void fill_win32_filefunc (zlib_filefunc_def* pzlib_filefunc_def)
  346. {
  347. pzlib_filefunc_def->zopen_file = win32_open_file_func;
  348. pzlib_filefunc_def->zread_file = win32_read_file_func;
  349. pzlib_filefunc_def->zwrite_file = win32_write_file_func;
  350. pzlib_filefunc_def->ztell_file = win32_tell_file_func;
  351. pzlib_filefunc_def->zseek_file = win32_seek_file_func;
  352. pzlib_filefunc_def->zclose_file = win32_close_file_func;
  353. pzlib_filefunc_def->zerror_file = win32_error_file_func;
  354. pzlib_filefunc_def->opaque = NULL;
  355. }
  356. void fill_win32_filefunc64(zlib_filefunc64_def* pzlib_filefunc_def)
  357. {
  358. pzlib_filefunc_def->zopen64_file = win32_open64_file_func;
  359. pzlib_filefunc_def->zread_file = win32_read_file_func;
  360. pzlib_filefunc_def->zwrite_file = win32_write_file_func;
  361. pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
  362. pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
  363. pzlib_filefunc_def->zclose_file = win32_close_file_func;
  364. pzlib_filefunc_def->zerror_file = win32_error_file_func;
  365. pzlib_filefunc_def->opaque = NULL;
  366. }
  367. void fill_win32_filefunc64A(zlib_filefunc64_def* pzlib_filefunc_def)
  368. {
  369. pzlib_filefunc_def->zopen64_file = win32_open64_file_funcA;
  370. pzlib_filefunc_def->zread_file = win32_read_file_func;
  371. pzlib_filefunc_def->zwrite_file = win32_write_file_func;
  372. pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
  373. pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
  374. pzlib_filefunc_def->zclose_file = win32_close_file_func;
  375. pzlib_filefunc_def->zerror_file = win32_error_file_func;
  376. pzlib_filefunc_def->opaque = NULL;
  377. }
  378. void fill_win32_filefunc64W(zlib_filefunc64_def* pzlib_filefunc_def)
  379. {
  380. pzlib_filefunc_def->zopen64_file = win32_open64_file_funcW;
  381. pzlib_filefunc_def->zread_file = win32_read_file_func;
  382. pzlib_filefunc_def->zwrite_file = win32_write_file_func;
  383. pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
  384. pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
  385. pzlib_filefunc_def->zclose_file = win32_close_file_func;
  386. pzlib_filefunc_def->zerror_file = win32_error_file_func;
  387. pzlib_filefunc_def->opaque = NULL;
  388. }