dlls/cabinet/cabinet_main.c

   1 /*
   2  * cabinet.dll main
   3  *
   4  * Copyright 2002 Patrik Stridvall
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <assert.h>
  24 #include <stdarg.h>
  25 #include <string.h>
  26
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "winerror.h"
  30 #define NO_SHLWAPI_REG
  31 #include "shlwapi.h"
  32 #undef NO_SHLWAPI_REG
  33
  34 #include "cabinet.h"
  35
  36 #include "wine/debug.h"
  37
  38 WINE_DEFAULT_DEBUG_CHANNEL(cabinet);
  39
  40 /* the following defintions are copied from msvcrt/fcntl.h */
  41
  42 #define _O_RDONLY      0
  43 #define _O_WRONLY      1
  44 #define _O_RDWR        2
  45 #define _O_ACCMODE     (_O_RDONLY|_O_WRONLY|_O_RDWR)
  46
  47
  48 /***********************************************************************
  49  * DllGetVersion (CABINET.2)
  50  *
  51  * Retrieves version information of the 'CABINET.DLL'
  52  *
  53  * PARAMS
  54  *     pdvi [O] pointer to version information structure.
  55  *
  56  * RETURNS
  57  *     Success: S_OK
  58  *     Failure: E_INVALIDARG
  59  *
  60  * NOTES
  61  *     Supposedly returns version from IE6SP1RP1
  62  */
  63 HRESULT WINAPI DllGetVersion (DLLVERSIONINFO *pdvi)
  64 {
  65   WARN("hmmm... not right version number \"5.1.1106.1\"?\n");
  66
  67   if (pdvi->cbSize != sizeof(DLLVERSIONINFO)) return E_INVALIDARG;
  68
  69   pdvi->dwMajorVersion = 5;
  70   pdvi->dwMinorVersion = 1;
  71   pdvi->dwBuildNumber = 1106;
  72   pdvi->dwPlatformID = 1;
  73
  74   return S_OK;
  75 }
  76
  77 /* FDI callback functions */
  78
  79 static void *mem_alloc(ULONG cb)
  80 {
  81     return HeapAlloc(GetProcessHeap(), 0, cb);
  82 }
  83
  84 static void mem_free(void *memory)
  85 {
  86     HeapFree(GetProcessHeap(), 0, memory);
  87 }
  88
  89 static INT_PTR fdi_open(char *pszFile, int oflag, int pmode)
  90 {
  91     HANDLE handle;
  92     DWORD dwAccess = 0;
  93     DWORD dwShareMode = 0;
  94     DWORD dwCreateDisposition = OPEN_EXISTING;
  95
  96     switch (oflag & _O_ACCMODE)
  97     {
  98         case _O_RDONLY:
  99             dwAccess = GENERIC_READ;
 100             dwShareMode = FILE_SHARE_READ | FILE_SHARE_DELETE;
 101             break;
 102         case _O_WRONLY:
 103             dwAccess = GENERIC_WRITE;
 104             dwShareMode = FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE;
 105             break;
 106         case _O_RDWR:
 107             dwAccess = GENERIC_READ | GENERIC_WRITE;
 108             dwShareMode = FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE;
 109             break;
 110     }
 111
 112     if (GetFileAttributesA(pszFile) != INVALID_FILE_ATTRIBUTES)
 113         dwCreateDisposition = OPEN_EXISTING;
 114     else
 115         dwCreateDisposition = CREATE_NEW;
 116
 117     handle = CreateFileA(pszFile, dwAccess, dwShareMode, NULL,
 118                          dwCreateDisposition, 0, NULL);
 119
 120     return (INT_PTR) handle;
 121 }
 122
 123 static UINT fdi_read(INT_PTR hf, void *pv, UINT cb)
 124 {
 125     HANDLE handle = (HANDLE) hf;
 126     DWORD dwRead;
 127
 128     if (ReadFile(handle, pv, cb, &dwRead, NULL))
 129         return dwRead;
 130
 131     return 0;
 132 }
 133
 134 static UINT fdi_write(INT_PTR hf, void *pv, UINT cb)
 135 {
 136     HANDLE handle = (HANDLE) hf;
 137     DWORD dwWritten;
 138
 139     if (WriteFile(handle, pv, cb, &dwWritten, NULL))
 140         return dwWritten;
 141
 142     return 0;
 143 }
 144
 145 static int fdi_close(INT_PTR hf)
 146 {
 147     HANDLE handle = (HANDLE) hf;
 148     return CloseHandle(handle) ? 0 : -1;
 149 }
 150
 151 static long fdi_seek(INT_PTR hf, long dist, int seektype)
 152 {
 153     HANDLE handle = (HANDLE) hf;
 154     return SetFilePointer(handle, dist, NULL, seektype);
 155 }
 156
 157 static void fill_file_node(struct ExtractFileList *pNode, LPSTR szFilename)
 158 {
 159     pNode->next = NULL;
 160     pNode->unknown = TRUE;
 161
 162     pNode->filename = HeapAlloc(GetProcessHeap(), 0, strlen(szFilename) + 1);
 163     lstrcpyA(pNode->filename, szFilename);
 164 }
 165
 166 static BOOL file_in_list(struct ExtractFileList *pNode, LPSTR szFilename)
 167 {
 168     while (pNode)
 169     {
 170         if (!lstrcmpiA(pNode->filename, szFilename))
 171             return TRUE;
 172
 173         pNode = pNode->next;
 174     }
 175
 176     return FALSE;
 177 }
 178
 179 static INT_PTR fdi_notify_extract(FDINOTIFICATIONTYPE fdint, PFDINOTIFICATION pfdin)
 180 {
 181     switch (fdint)
 182     {
 183         case fdintCOPY_FILE:
 184         {
 185             struct ExtractFileList **fileList;
 186             EXTRACTdest *pDestination = pfdin->pv;
 187             LPSTR szFullPath, szDirectory;
 188             HANDLE hFile = 0;
 189             DWORD dwSize;
 190
 191             dwSize = lstrlenA(pDestination->directory) +
 192                     lstrlenA("\\") + lstrlenA(pfdin->psz1) + 1;
 193             szFullPath = HeapAlloc(GetProcessHeap(), 0, dwSize);
 194
 195             lstrcpyA(szFullPath, pDestination->directory);
 196             lstrcatA(szFullPath, "\\");
 197             lstrcatA(szFullPath, pfdin->psz1);
 198
 199             /* pull out the destination directory string from the full path */
 200             dwSize = strrchr(szFullPath, '\\') - szFullPath + 1;
 201             szDirectory = HeapAlloc(GetProcessHeap(), 0, dwSize);
 202             lstrcpynA(szDirectory, szFullPath, dwSize);
 203
 204             if (pDestination->flags & EXTRACT_FILLFILELIST)
 205             {
 206                 fileList = &pDestination->filelist;
 207
 208                 while (*fileList)
 209                     fileList = &((*fileList)->next);
 210
 211                 *fileList = HeapAlloc(GetProcessHeap(), 0,
 212                                       sizeof(struct ExtractFileList));
 213
 214                 fill_file_node(*fileList, pfdin->psz1);
 215                 lstrcpyA(pDestination->lastfile, szFullPath);
 216                 pDestination->filecount++;
 217             }
 218
 219             if (pDestination->flags & EXTRACT_EXTRACTFILES)
 220             {
 221                 /* skip this file it it's not in the file list */
 222                 if (!file_in_list(pDestination->filelist, pfdin->psz1))
 223                     return 0;
 224
 225                 /* create the destination directory if it doesn't exist */
 226                 if (GetFileAttributesA(szDirectory) == INVALID_FILE_ATTRIBUTES)
 227                     CreateDirectoryA(szDirectory, NULL);
 228
 229                 hFile = CreateFileA(szFullPath, GENERIC_READ | GENERIC_WRITE, 0, NULL,
 230                                     CREATE_NEW, FILE_ATTRIBUTE_NORMAL, NULL);
 231
 232                 if (hFile == INVALID_HANDLE_VALUE)
 233                     hFile = 0;
 234             }
 235
 236             HeapFree(GetProcessHeap(), 0, szFullPath);
 237             HeapFree(GetProcessHeap(), 0, szDirectory);
 238
 239             return (INT_PTR) hFile;
 240         }
 241
 242         case fdintCLOSE_FILE_INFO:
 243         {
 244             FILETIME ft;
 245             FILETIME ftLocal;
 246             HANDLE handle = (HANDLE) pfdin->hf;
 247
 248             if (!DosDateTimeToFileTime(pfdin->date, pfdin->time, &ft))
 249                 return FALSE;
 250
 251             if (!LocalFileTimeToFileTime(&ft, &ftLocal))
 252                 return FALSE;
 253
 254             if (!SetFileTime(handle, &ftLocal, 0, &ftLocal))
 255                 return FALSE;
 256
 257             CloseHandle(handle);
 258             return TRUE;
 259         }
 260
 261         default:
 262             return 0;
 263     }
 264 }
 265
 266 /***********************************************************************
 267  * Extract (CABINET.3)
 268  *
 269  * Extracts the contents of the cabinet file to the specified
 270  * destination.
 271  *
 272  * PARAMS
 273  *   dest      [I/O] Controls the operation of Extract.  See NOTES.
 274  *   szCabName [I] Filename of the cabinet to extract.
 275  *
 276  * RETURNS
 277  *     Success: S_OK.
 278  *     Failure: E_FAIL.
 279  *
 280  * NOTES
 281  *   The following members of the dest struct control the operation
 282  *   of Extract:
 283  *       filelist  [I] A linked list of filenames.  Extract only extracts
 284  *                     files from the cabinet that are in this list.
 285  *       filecount [O] Contains the number of files in filelist on
 286  *                     completion.
 287  *       flags     [I] See Operation.
 288  *       directory [I] The destination directory.
 289  *       lastfile  [O] The last file extracted.
 290  *
 291  *   Operation
 292  *     If flags contains EXTRACT_FILLFILELIST, then filelist will be
 293  *     filled with all the files in the cabinet.  If flags contains
 294  *     EXTRACT_EXTRACTFILES, then only the files in the filelist will
 295  *     be extracted from the cabinet.  EXTRACT_FILLFILELIST can be called
 296  *     by itself, but EXTRACT_EXTRACTFILES must have a valid filelist
 297  *     in order to succeed.  If flags contains both EXTRACT_FILLFILELIST
 298  *     and EXTRACT_EXTRACTFILES, then all the files in the cabinet
 299  *     will be extracted.
 300  */
 301 HRESULT WINAPI Extract(EXTRACTdest *dest, LPCSTR szCabName)
 302 {
 303     HRESULT res = S_OK;
 304     HFDI hfdi;
 305     ERF erf;
 306     static CHAR empty[] = "";
 307
 308     TRACE("(%p, %s)\n", dest, szCabName);
 309
 310     hfdi = FDICreate(mem_alloc,
 311                      mem_free,
 312                      fdi_open,
 313                      fdi_read,
 314                      fdi_write,
 315                      fdi_close,
 316                      fdi_seek,
 317                      cpuUNKNOWN,
 318                      &erf);
 319
 320     if (!hfdi)
 321         return E_FAIL;
 322
 323     if (GetFileAttributesA(dest->directory) == INVALID_FILE_ATTRIBUTES)
 324         return S_OK;
 325
 326     if (!FDICopy(hfdi, (LPSTR)szCabName, empty, 0,
 327          fdi_notify_extract, NULL, dest))
 328         res = E_FAIL;
 329
 330     FDIDestroy(hfdi);
 331
 332     return res;
 333 }