mirror of
https://github.com/dolphin-emu/dolphin.git
synced 2024-11-15 22:09:19 -07:00
81 lines
2.4 KiB
C
81 lines
2.4 KiB
C
/*
|
|
* Source file for missing WinCE functionality
|
|
* Copyright © 2012 RealVNC Ltd.
|
|
*
|
|
* 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 Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "missing.h"
|
|
|
|
#include <config.h>
|
|
#include <libusbi.h>
|
|
|
|
#include <windows.h>
|
|
|
|
// The registry path to store environment variables
|
|
#define ENVIRONMENT_REG_PATH _T("Software\\libusb\\environment")
|
|
|
|
/* Workaround getenv not being available on WinCE.
|
|
* Instead look in HKLM\Software\libusb\environment */
|
|
char *getenv(const char *name)
|
|
{
|
|
static char value[MAX_PATH];
|
|
TCHAR wValue[MAX_PATH];
|
|
WCHAR wName[MAX_PATH];
|
|
DWORD dwType, dwData;
|
|
HKEY hkey;
|
|
LONG rc;
|
|
|
|
if (!name)
|
|
return NULL;
|
|
|
|
if (MultiByteToWideChar(CP_UTF8, 0, name, -1, wName, MAX_PATH) <= 0) {
|
|
usbi_dbg("Failed to convert environment variable name to wide string");
|
|
return NULL;
|
|
}
|
|
wName[MAX_PATH - 1] = 0; // Be sure it's NUL terminated
|
|
|
|
rc = RegOpenKeyEx(HKEY_LOCAL_MACHINE, ENVIRONMENT_REG_PATH, 0, KEY_QUERY_VALUE, &hkey);
|
|
if (rc != ERROR_SUCCESS) {
|
|
usbi_dbg("Failed to open registry key for getenv with error %d", rc);
|
|
return NULL;
|
|
}
|
|
|
|
// Attempt to read the key
|
|
dwData = sizeof(wValue);
|
|
rc = RegQueryValueEx(hkey, wName, NULL, &dwType,
|
|
(LPBYTE)&wValue, &dwData);
|
|
RegCloseKey(hkey);
|
|
if (rc != ERROR_SUCCESS) {
|
|
usbi_dbg("Failed to read registry key value for getenv with error %d", rc);
|
|
return NULL;
|
|
}
|
|
if (dwType != REG_SZ) {
|
|
usbi_dbg("Registry value was of type %d instead of REG_SZ", dwType);
|
|
return NULL;
|
|
}
|
|
|
|
// Success in reading the key, convert from WCHAR to char
|
|
if (WideCharToMultiByte(CP_UTF8, 0,
|
|
wValue, dwData / sizeof(*wValue),
|
|
value, MAX_PATH,
|
|
NULL, NULL) <= 0) {
|
|
usbi_dbg("Failed to convert environment variable value to narrow string");
|
|
return NULL;
|
|
}
|
|
value[MAX_PATH - 1] = 0; // Be sure it's NUL terminated
|
|
return value;
|
|
}
|