dlls/ctapi32/ctapi32.c

   1 /*
   2  * WINE ct-api wrapper
   3  *
   4  * Copyright 2007 Christian Eggers
   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 <string.h>
  22 #include <stdarg.h>
  23
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "winreg.h"
  27 #include "winnls.h"
  28 #include "unixlib.h"
  29 #include "wine/debug.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(ctapi32);
  32
  33 #define FALLBACK_LIBCTAPI "libctapi.so"
  34
  35 static unixlib_handle_t ctapi_handle;
  36
  37 #define CTAPI_CALL( func, params ) __wine_unix_call( ctapi_handle, unix_ ## func, params )
  38
  39
  40 static BOOL load_functions(void) {
  41         char soname[MAX_PATH] = FALLBACK_LIBCTAPI;
  42         LONG result;
  43         HKEY key_handle;
  44
  45         /* Try to get name of low level library from registry */
  46         /* @@ Wine registry key: HKCU\Software\Wine\ctapi32 */
  47         result = RegOpenKeyExW(HKEY_CURRENT_USER, L"Software\\Wine\\ctapi32", 0, KEY_READ, &key_handle);
  48         if (result == ERROR_SUCCESS) {
  49                 DWORD type, size;
  50                 WCHAR buffer_w[MAX_PATH];
  51
  52                 size = sizeof(buffer_w) - sizeof(WCHAR);  /* Leave space for null termination */
  53                 result = RegQueryValueExW(key_handle, L"library", NULL, &type, (LPBYTE)buffer_w, &size);
  54                 if ((result == ERROR_SUCCESS) && (type == REG_SZ)) {
  55                         /* Null termination */
  56                         buffer_w[size / sizeof(WCHAR)] = '\0';
  57                         WideCharToMultiByte(CP_UNIXCP, 0, buffer_w, -1, soname, sizeof(soname), NULL, NULL);
  58                 }
  59                 RegCloseKey(key_handle);
  60         }
  61
  62         TRACE("Loading library '%s'\n", soname);
  63         if (!CTAPI_CALL( attach, soname )) return TRUE;
  64
  65         MESSAGE("Wine cannot find any usable hardware library, ctapi32.dll not working.\n");
  66         MESSAGE("Please create the key \"HKEY_CURRENT_USER\\Software\\Wine\\ctapi32\" in your registry\n");
  67         MESSAGE("and set the value \"library\" to your library name (e.g. \"libctapi-cyberjack.so.1\" or \"/usr/lib/readers/libctapi.so\").\n");
  68         return FALSE;
  69 }
  70
  71 /*
  72  *  ct-API specific functions
  73  */
  74
  75 IS8 WINAPI CT_init(IU16 ctn, IU16 pn)
  76 {
  77     struct ct_init_params params = { ctn, pn };
  78
  79     return CTAPI_CALL( ct_init, &params );
  80 }
  81
  82 IS8 WINAPI CT_data(IU16 ctn, IU8 *dad, IU8 *sad, IU16 lenc, IU8 *command, IU16 *lenr, IU8 *response)
  83 {
  84     struct ct_data_params params = { ctn, dad, sad, lenc, command, lenr, response };
  85
  86     return CTAPI_CALL( ct_data, &params );
  87 }
  88
  89 IS8 WINAPI CT_close(IU16 ctn)
  90 {
  91     struct ct_close_params params = { ctn };
  92
  93     return CTAPI_CALL( ct_close, &params );
  94 }
  95
  96 /*
  97  *  Dll Main function
  98  */
  99 BOOL WINAPI DllMain (HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
 100 {
 101     TRACE("%p,%lx,%p\n", hinstDLL, fdwReason, lpvReserved);
 102
 103     switch (fdwReason)
 104     {
 105         case DLL_PROCESS_ATTACH:
 106             DisableThreadLibraryCalls(hinstDLL);
 107             if (NtQueryVirtualMemory( GetCurrentProcess(), hinstDLL, MemoryWineUnixFuncs,
 108                                       &ctapi_handle, sizeof(ctapi_handle), NULL ))
 109                 return FALSE;
 110             if (!load_functions())
 111                 return FALSE;
 112             break;
 113         case DLL_PROCESS_DETACH:
 114             if (lpvReserved) break;
 115             CTAPI_CALL( detach, NULL );
 116             break;
 117     }
 118
 119     return TRUE;
 120 }