mirror of
https://github.com/reactos/wine.git
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164 lines
4.5 KiB
C
164 lines
4.5 KiB
C
/*
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* Services.exe - some utility functions
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*
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* Copyright 2007 Google (Mikolaj Zalewski)
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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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#define WIN32_LEAN_AND_MEAN
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#include <stdarg.h>
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#include <windows.h>
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#include "wine/unicode.h"
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#include "wine/debug.h"
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#include "services.h"
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WINE_DEFAULT_DEBUG_CHANNEL(service);
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LPWSTR strdupW(LPCWSTR str)
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{
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int len;
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WCHAR *buf;
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if (str == NULL)
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return NULL;
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len = strlenW(str);
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buf = HeapAlloc(GetProcessHeap(), 0, sizeof(WCHAR)*(len+1));
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if (buf == NULL)
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return NULL;
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strcpyW(buf, str);
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return buf;
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}
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BOOL check_multisz(LPCWSTR lpMultiSz, DWORD cbSize)
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{
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if (cbSize == 0 || (cbSize == sizeof(WCHAR) && lpMultiSz[0] == 0))
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return TRUE;
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if ((cbSize % sizeof(WCHAR)) != 0 || cbSize < 2*sizeof(WCHAR))
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return FALSE;
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if (lpMultiSz[cbSize/2 - 1] || lpMultiSz[cbSize/2 - 2])
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return FALSE;
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return TRUE;
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}
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DWORD load_reg_string(HKEY hKey, LPCWSTR szValue, BOOL bExpand, LPWSTR *output)
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{
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DWORD size, type;
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LPWSTR buf = NULL;
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DWORD err;
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*output = NULL;
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if ((err = RegQueryValueExW(hKey, szValue, 0, &type, NULL, &size)) != 0)
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{
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if (err == ERROR_FILE_NOT_FOUND)
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return ERROR_SUCCESS;
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goto failed;
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}
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if (!(type == REG_SZ || (type == REG_EXPAND_SZ && bExpand)))
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{
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err = ERROR_INVALID_DATATYPE;
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goto failed;
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}
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buf = HeapAlloc(GetProcessHeap(), 0, size + sizeof(WCHAR));
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if ((err = RegQueryValueExW(hKey, szValue, 0, &type, (LPBYTE)buf, &size)) != 0)
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goto failed;
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buf[size/sizeof(WCHAR)] = 0;
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if (type == REG_EXPAND_SZ)
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{
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LPWSTR str;
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DWORD size = ExpandEnvironmentStringsW(buf, NULL, 0);
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if (size == 0)
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{
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err = GetLastError();
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goto failed;
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}
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str = HeapAlloc(GetProcessHeap(), 0, size * sizeof(WCHAR));
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ExpandEnvironmentStringsW(buf, str, size);
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HeapFree(GetProcessHeap(), 0, buf);
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*output = str;
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}
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else
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*output = buf;
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return ERROR_SUCCESS;
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failed:
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WINE_ERR("Error %d while reading value %s\n", err, wine_dbgstr_w(szValue));
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HeapFree(GetProcessHeap(), 0, buf);
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return err;
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}
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DWORD load_reg_multisz(HKEY hKey, LPCWSTR szValue, BOOL bAllowSingle, LPWSTR *output)
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{
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DWORD size, type;
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LPWSTR buf = NULL;
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DWORD err;
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*output = NULL;
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if ((err = RegQueryValueExW(hKey, szValue, 0, &type, NULL, &size)) != 0)
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{
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if (err == ERROR_FILE_NOT_FOUND)
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{
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*output = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(WCHAR));
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return ERROR_SUCCESS;
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}
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goto failed;
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}
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if (!((type == REG_MULTI_SZ) || ((type == REG_SZ) && bAllowSingle)))
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{
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err = ERROR_INVALID_DATATYPE;
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goto failed;
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}
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buf = HeapAlloc(GetProcessHeap(), 0, size + 2*sizeof(WCHAR));
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if ((err = RegQueryValueExW(hKey, szValue, 0, &type, (LPBYTE)buf, &size)) != 0)
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goto failed;
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buf[size/sizeof(WCHAR)] = 0;
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buf[size/sizeof(WCHAR) + 1] = 0;
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*output = buf;
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return ERROR_SUCCESS;
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failed:
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WINE_ERR("Error %d while reading value %s\n", err, wine_dbgstr_w(szValue));
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HeapFree(GetProcessHeap(), 0, buf);
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return err;
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}
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DWORD load_reg_dword(HKEY hKey, LPCWSTR szValue, DWORD *output)
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{
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DWORD size, type;
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DWORD err;
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*output = 0;
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size = sizeof(DWORD);
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if ((err = RegQueryValueExW(hKey, szValue, 0, &type, (LPBYTE)output, &size)) != 0)
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{
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if (err == ERROR_FILE_NOT_FOUND)
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return ERROR_SUCCESS;
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goto failed;
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}
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if (type != REG_DWORD || size != sizeof(DWORD))
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{
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err = ERROR_INVALID_DATATYPE;
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goto failed;
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}
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return ERROR_SUCCESS;
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failed:
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WINE_ERR("Error %d while reading value %s\n", err, wine_dbgstr_w(szValue));
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return err;
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}
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