wine/dlls/ctapi32/ctapi32.c
2008-05-06 16:10:20 +02:00

156 lines
4.2 KiB
C

/*
* WINE ct-api wrapper
*
* Copyright 2007 Christian Eggers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <string.h>
#include "wine/library.h"
#include "wine/debug.h"
#include "windef.h"
#include "winreg.h"
#include "winnls.h"
#include "ctapi.h"
WINE_DEFAULT_DEBUG_CHANNEL(ctapi32);
#define FALLBACK_LIBCTAPI "libctapi.so"
static const WCHAR value_name[] = {'l','i','b','r','a','r','y',0};
static IS8 (*pCT_init)(IU16 ctn, IU16 pn) = NULL;
static IS8 (*pCT_data)(IU16 ctn, IU8 *dad, IU8 *sad, IU16 lenc, IU8 *command,
IU16 *lenr, IU8 *response) = NULL;
static IS8 (*pCT_close)(IU16 ctn) = NULL;
static void *ctapi_handle = NULL;
static int load_functions(void) {
char soname[MAX_PATH] = FALLBACK_LIBCTAPI, buffer[MAX_PATH];
LONG result;
HKEY key_handle;
if (pCT_init) /* loaded already */
return 0;
/* Try to get name of low level library from registry */
/* @@ Wine registry key: HKCU\Software\Wine\ctapi32 */
result = RegOpenKeyExA(HKEY_CURRENT_USER, "Software\\Wine\\ctapi32", 0, KEY_READ, &key_handle);
if (result == ERROR_SUCCESS) {
DWORD type, size;
WCHAR buffer_w[MAX_PATH];
size = sizeof(buffer_w) - sizeof(WCHAR); /* Leave space for null termination */
result = RegQueryValueExW(key_handle, value_name, NULL, &type, (LPBYTE)buffer_w, &size);
if ((result == ERROR_SUCCESS) && (type == REG_SZ)) {
int len;
/* Null termination */
buffer_w[size / sizeof(WCHAR)] = '\0';
len = WideCharToMultiByte(CP_UNIXCP, 0, buffer_w, -1, buffer, sizeof(buffer), NULL, NULL);
if (len)
memcpy(soname, buffer, len);
}
RegCloseKey(key_handle);
}
TRACE("Loading library '%s'\n", soname);
ctapi_handle = wine_dlopen(soname, RTLD_NOW, NULL, 0);
if (ctapi_handle) {
TRACE("Successfully loaded '%s'\n", soname);
}
else {
MESSAGE("Wine cannot find any usable hardware library, ctapi32.dll not working.\n");
MESSAGE("Please create the key \"HKEY_CURRENT_USER\\Software\\Wine\\ctapi32\" in your registry\n");
MESSAGE("and set the value \"library\" to your library name (e.g. \"libctapi-cyberjack.so.1\" or \"/usr/lib/readers/libctapi.so\").\n");
return 1;
}
#define LOAD_FUNCPTR(f) if((p##f = wine_dlsym(ctapi_handle, #f, NULL, 0)) == NULL){WARN("Can't find symbol %s\n", #f); return 1;}
LOAD_FUNCPTR(CT_init);
LOAD_FUNCPTR(CT_data);
LOAD_FUNCPTR(CT_close);
#undef LOAD_FUNCPTR
return 0;
}
static void unload_functions(void)
{
pCT_close = NULL;
pCT_data = NULL;
pCT_init = NULL;
if (ctapi_handle)
wine_dlclose(ctapi_handle, NULL, 0);
}
/*
* ct-API specific functions
*/
IS8 WINAPI WIN_CT_init(IU16 ctn, IU16 pn)
{
if (!pCT_init)
return ERR_HOST;
return pCT_init(ctn, pn);
}
IS8 WINAPI WIN_CT_data(IU16 ctn, IU8 *dad, IU8 *sad, IU16 lenc, IU8 *command, IU16 *lenr, IU8 *response)
{
if (!pCT_data)
return ERR_HOST;
return pCT_data(ctn, dad, sad, lenc, command, lenr, response);
}
IS8 WINAPI WIN_CT_close(IU16 ctn)
{
if (!pCT_close)
return ERR_HOST;
return pCT_close(ctn);
}
/*
* Dll Main function
*/
BOOL WINAPI DllMain (HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
TRACE("%p,%x,%p\n", hinstDLL, fdwReason, lpvReserved);
switch (fdwReason)
{
case DLL_PROCESS_ATTACH:
{
DisableThreadLibraryCalls(hinstDLL);
/* Try to load low-level library */
if (load_functions() != 0)
return FALSE; /* error */
break;
}
case DLL_PROCESS_DETACH:
{
unload_functions();
break;
}
}
return TRUE;
}