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