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/*
* Services.exe - some utility functions
*
* Copyright 2007 Google (Mikolaj Zalewski)
*
* 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
*/
#define WIN32_LEAN_AND_MEAN
#include <stdarg.h>
#include <stdlib.h>
#include <windows.h>
#include <winsvc.h>
#include "wine/debug.h"
#include "services.h"
WINE_DEFAULT_DEBUG_CHANNEL(service);
BOOL check_multisz(LPCWSTR lpMultiSz, DWORD cbSize)
{
if (cbSize == 0 || (cbSize == sizeof(WCHAR) && lpMultiSz[0] == 0))
return TRUE;
if ((cbSize % sizeof(WCHAR)) != 0 || cbSize < 2*sizeof(WCHAR))
return FALSE;
if (lpMultiSz[cbSize/2 - 1] || lpMultiSz[cbSize/2 - 2])
return FALSE;
return TRUE;
}
DWORD load_reg_string(HKEY hKey, LPCWSTR szValue, BOOL bExpand, LPWSTR *output)
{
DWORD size, type;
LPWSTR buf = NULL;
DWORD err;
*output = NULL;
if ((err = RegQueryValueExW(hKey, szValue, 0, &type, NULL, &size)) != 0)
{
if (err == ERROR_FILE_NOT_FOUND)
return ERROR_SUCCESS;
goto failed;
}
if (!(type == REG_SZ || (type == REG_EXPAND_SZ && bExpand)))
{
err = ERROR_INVALID_DATATYPE;
goto failed;
}
buf = malloc(size + sizeof(WCHAR));
if ((err = RegQueryValueExW(hKey, szValue, 0, &type, (LPBYTE)buf, &size)) != 0)
goto failed;
buf[size/sizeof(WCHAR)] = 0;
if (type == REG_EXPAND_SZ)
{
LPWSTR str;
if (!(size = ExpandEnvironmentStringsW(buf, NULL, 0)))
{
err = GetLastError();
goto failed;
}
str = malloc(size * sizeof(WCHAR));
ExpandEnvironmentStringsW(buf, str, size);
free(buf);
*output = str;
}
else
*output = buf;
return ERROR_SUCCESS;
failed:
WINE_ERR("Error %ld while reading value %s\n", err, wine_dbgstr_w(szValue));
free(buf);
return err;
}
DWORD load_reg_multisz(HKEY hKey, LPCWSTR szValue, BOOL bAllowSingle, LPWSTR *output)
{
DWORD size, type;
LPWSTR buf = NULL;
DWORD err;
*output = NULL;
if ((err = RegQueryValueExW(hKey, szValue, 0, &type, NULL, &size)) != 0)
{
if (err == ERROR_FILE_NOT_FOUND)
{
*output = calloc(1, sizeof(WCHAR));
return ERROR_SUCCESS;
}
goto failed;
}
if (!((type == REG_MULTI_SZ) || ((type == REG_SZ) && bAllowSingle)))
{
err = ERROR_INVALID_DATATYPE;
goto failed;
}
buf = malloc(size + 2 * sizeof(WCHAR));
if ((err = RegQueryValueExW(hKey, szValue, 0, &type, (LPBYTE)buf, &size)) != 0)
goto failed;
buf[size/sizeof(WCHAR)] = 0;
buf[size/sizeof(WCHAR) + 1] = 0;
*output = buf;
return ERROR_SUCCESS;
failed:
WINE_ERR("Error %ld while reading value %s\n", err, wine_dbgstr_w(szValue));
free(buf);
return err;
}
DWORD load_reg_dword(HKEY hKey, LPCWSTR szValue, DWORD *output)
{
DWORD size, type;
DWORD err;
*output = 0;
size = sizeof(DWORD);
if ((err = RegQueryValueExW(hKey, szValue, 0, &type, (LPBYTE)output, &size)) != 0)
{
if (err == ERROR_FILE_NOT_FOUND)
return ERROR_SUCCESS;
goto failed;
}
if ((type != REG_DWORD && type != REG_BINARY) || size != sizeof(DWORD))
{
err = ERROR_INVALID_DATATYPE;
goto failed;
}
return ERROR_SUCCESS;
failed:
WINE_ERR("Error %ld while reading value %s\n", err, wine_dbgstr_w(szValue));
return err;
}
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