mirror of git://git.gnupg.org/gnupg.git
324 lines
8.1 KiB
C
324 lines
8.1 KiB
C
/* w32-reg.c - MS-Windows Registry access
|
|
* Copyright (C) 1999, 2002, 2007 Free Software Foundation, Inc.
|
|
*
|
|
* This file is part of JNLIB, which is a subsystem of GnuPG.
|
|
*
|
|
* JNLIB is free software; you can redistribute it and/or modify it
|
|
* under the terms of either
|
|
*
|
|
* - the GNU Lesser General Public License as published by the Free
|
|
* Software Foundation; either version 3 of the License, or (at
|
|
* your option) any later version.
|
|
*
|
|
* or
|
|
*
|
|
* - the GNU General Public License as published by the Free
|
|
* Software Foundation; either version 2 of the License, or (at
|
|
* your option) any later version.
|
|
*
|
|
* or both in parallel, as here.
|
|
*
|
|
* JNLIB 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
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copies of the GNU General Public License
|
|
* and the GNU Lesser General Public License along with this program;
|
|
* if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <config.h>
|
|
#ifdef HAVE_W32_SYSTEM
|
|
/* This module is only used in this environment */
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <stdarg.h>
|
|
#include <windows.h>
|
|
|
|
#include "libjnlib-config.h"
|
|
#include "utf8conv.h"
|
|
#include "w32help.h"
|
|
|
|
|
|
static HKEY
|
|
get_root_key(const char *root)
|
|
{
|
|
HKEY root_key;
|
|
|
|
if (!root)
|
|
root_key = HKEY_CURRENT_USER;
|
|
else if (!strcmp( root, "HKEY_CLASSES_ROOT" ) )
|
|
root_key = HKEY_CLASSES_ROOT;
|
|
else if (!strcmp( root, "HKEY_CURRENT_USER" ) )
|
|
root_key = HKEY_CURRENT_USER;
|
|
else if (!strcmp( root, "HKEY_LOCAL_MACHINE" ) )
|
|
root_key = HKEY_LOCAL_MACHINE;
|
|
else if (!strcmp( root, "HKEY_USERS" ) )
|
|
root_key = HKEY_USERS;
|
|
else if (!strcmp( root, "HKEY_PERFORMANCE_DATA" ) )
|
|
root_key = HKEY_PERFORMANCE_DATA;
|
|
else if (!strcmp( root, "HKEY_CURRENT_CONFIG" ) )
|
|
root_key = HKEY_CURRENT_CONFIG;
|
|
else
|
|
return NULL;
|
|
|
|
return root_key;
|
|
}
|
|
|
|
|
|
/* Return a string from the Win32 Registry or NULL in case of error.
|
|
Caller must release the return value. A NULL for root is an alias
|
|
for HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE in turn. */
|
|
char *
|
|
read_w32_registry_string (const char *root, const char *dir, const char *name)
|
|
{
|
|
#ifdef HAVE_W32CE_SYSTEM
|
|
HKEY root_key, key_handle;
|
|
DWORD n1, nbytes, type;
|
|
char *result = NULL;
|
|
wchar_t *wdir, *wname;
|
|
|
|
if ( !(root_key = get_root_key(root) ) )
|
|
return NULL;
|
|
|
|
wdir = utf8_to_wchar (dir);
|
|
if (!wdir)
|
|
return NULL;
|
|
|
|
if (RegOpenKeyEx (root_key, wdir, 0, KEY_READ, &key_handle) )
|
|
{
|
|
if (root)
|
|
{
|
|
jnlib_free (wdir);
|
|
return NULL; /* No need for a RegClose, so return immediately. */
|
|
}
|
|
/* It seems to be common practise to fall back to HKLM. */
|
|
if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, wdir, 0, KEY_READ, &key_handle) )
|
|
{
|
|
jnlib_free (wdir);
|
|
return NULL; /* Still no need for a RegClose. */
|
|
}
|
|
}
|
|
jnlib_free (wdir);
|
|
|
|
if (name)
|
|
{
|
|
wname = utf8_to_wchar (name);
|
|
if (!wname)
|
|
goto leave;
|
|
}
|
|
else
|
|
wname = NULL;
|
|
|
|
nbytes = 2;
|
|
if (RegQueryValueEx (key_handle, wname, 0, NULL, NULL, &nbytes))
|
|
goto leave;
|
|
result = jnlib_malloc ((n1=nbytes+2));
|
|
if (!result)
|
|
goto leave;
|
|
if (RegQueryValueEx (key_handle, wname, 0, &type, result, &n1))
|
|
{
|
|
jnlib_free (result);
|
|
result = NULL;
|
|
goto leave;
|
|
}
|
|
result[nbytes] = 0; /* Make sure it is a string. */
|
|
result[nbytes+1] = 0;
|
|
if (type == REG_SZ || type == REG_EXPAND_SZ)
|
|
{
|
|
wchar_t *tmp = (void*)result;
|
|
result = wchar_to_utf8 (tmp);
|
|
jnlib_free (tmp);
|
|
}
|
|
|
|
leave:
|
|
jnlib_free (wname);
|
|
RegCloseKey (key_handle);
|
|
return result;
|
|
#else /*!HAVE_W32CE_SYSTEM*/
|
|
HKEY root_key, key_handle;
|
|
DWORD n1, nbytes, type;
|
|
char *result = NULL;
|
|
|
|
if ( !(root_key = get_root_key(root) ) )
|
|
return NULL;
|
|
|
|
if (RegOpenKeyEx (root_key, dir, 0, KEY_READ, &key_handle) )
|
|
{
|
|
if (root)
|
|
return NULL; /* No need for a RegClose, so return immediately. */
|
|
/* It seems to be common practise to fall back to HKLM. */
|
|
if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, dir, 0, KEY_READ, &key_handle) )
|
|
return NULL; /* Still no need for a RegClose. */
|
|
}
|
|
|
|
nbytes = 1;
|
|
if (RegQueryValueEx( key_handle, name, 0, NULL, NULL, &nbytes ) )
|
|
goto leave;
|
|
result = jnlib_malloc ((n1=nbytes+1));
|
|
if (!result)
|
|
goto leave;
|
|
if (RegQueryValueEx( key_handle, name, 0, &type, result, &n1 ))
|
|
{
|
|
jnlib_free (result);
|
|
result = NULL;
|
|
goto leave;
|
|
}
|
|
result[nbytes] = 0; /* Make sure it is a string. */
|
|
if (type == REG_EXPAND_SZ && strchr (result, '%'))
|
|
{
|
|
char *tmp;
|
|
|
|
n1 += 1000;
|
|
tmp = jnlib_malloc (n1+1);
|
|
if (!tmp)
|
|
goto leave;
|
|
nbytes = ExpandEnvironmentStrings (result, tmp, n1);
|
|
if (nbytes && nbytes > n1)
|
|
{
|
|
jnlib_free (tmp);
|
|
n1 = nbytes;
|
|
tmp = jnlib_malloc (n1 + 1);
|
|
if (!tmp)
|
|
goto leave;
|
|
nbytes = ExpandEnvironmentStrings (result, tmp, n1);
|
|
if (nbytes && nbytes > n1)
|
|
{
|
|
/* Oops - truncated, better don't expand at all. */
|
|
jnlib_free (tmp);
|
|
goto leave;
|
|
}
|
|
tmp[nbytes] = 0;
|
|
jnlib_free (result);
|
|
result = tmp;
|
|
}
|
|
else if (nbytes)
|
|
{
|
|
/* Okay, reduce the length. */
|
|
tmp[nbytes] = 0;
|
|
jnlib_free (result);
|
|
result = jnlib_malloc (strlen (tmp)+1);
|
|
if (!result)
|
|
result = tmp;
|
|
else
|
|
{
|
|
strcpy (result, tmp);
|
|
jnlib_free (tmp);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Error - don't expand. */
|
|
jnlib_free (tmp);
|
|
}
|
|
}
|
|
|
|
leave:
|
|
RegCloseKey (key_handle);
|
|
return result;
|
|
#endif /*!HAVE_W32CE_SYSTEM*/
|
|
}
|
|
|
|
|
|
/* Note: This code is not well tested. However, it is not used in
|
|
GnuPG. */
|
|
int
|
|
write_w32_registry_string (const char *root, const char *dir,
|
|
const char *name, const char *value)
|
|
{
|
|
HKEY root_key, reg_key;
|
|
#ifdef HAVE_W32CE_SYSTEM
|
|
wchar_t *wdir, *wname, *wvalue;
|
|
DWORD disp;
|
|
|
|
if ( !(root_key = get_root_key(root) ) )
|
|
return -1;
|
|
|
|
wdir = utf8_to_wchar (dir);
|
|
if (!wdir)
|
|
return -1;
|
|
|
|
if (RegOpenKeyEx (root_key, wdir, 0, 0, ®_key))
|
|
{
|
|
jnlib_free (wdir);
|
|
return -1;
|
|
}
|
|
jnlib_free (wdir);
|
|
|
|
if (name)
|
|
{
|
|
wname = utf8_to_wchar (name);
|
|
if (!wname)
|
|
return -1;
|
|
}
|
|
else
|
|
wname = NULL;
|
|
|
|
wvalue = utf8_to_wchar (value);
|
|
if (wvalue)
|
|
{
|
|
jnlib_free (wname);
|
|
return -1;
|
|
}
|
|
|
|
if (RegSetValueEx (reg_key, wname, 0, REG_SZ,
|
|
(BYTE *)wvalue, wcslen (wvalue)) != ERROR_SUCCESS )
|
|
{
|
|
|
|
if (RegCreateKeyEx (root_key, wname, 0, NULL, 0, 0, NULL,
|
|
®_key, &disp) != ERROR_SUCCESS)
|
|
{
|
|
RegCloseKey(reg_key);
|
|
jnlib_free (wname);
|
|
jnlib_free (wvalue);
|
|
return -1;
|
|
}
|
|
if (RegSetValueEx (reg_key, wname, 0, REG_SZ,
|
|
(BYTE *)wvalue, wcslen (wvalue)) != ERROR_SUCCESS )
|
|
{
|
|
RegCloseKey(reg_key);
|
|
jnlib_free (wname);
|
|
jnlib_free (wvalue);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
jnlib_free (wname);
|
|
jnlib_free (wvalue);
|
|
RegCloseKey (reg_key);
|
|
return 0;
|
|
#else /*!HAVE_W32CE_SYSTEM*/
|
|
|
|
if ( !(root_key = get_root_key(root) ) )
|
|
return -1;
|
|
|
|
if ( RegOpenKeyEx( root_key, dir, 0, KEY_WRITE, ®_key )
|
|
!= ERROR_SUCCESS )
|
|
return -1;
|
|
|
|
if ( RegSetValueEx (reg_key, name, 0, REG_SZ, (BYTE *)value,
|
|
strlen( value ) ) != ERROR_SUCCESS )
|
|
{
|
|
if ( RegCreateKey( root_key, name, ®_key ) != ERROR_SUCCESS )
|
|
{
|
|
RegCloseKey(reg_key);
|
|
return -1;
|
|
}
|
|
if ( RegSetValueEx (reg_key, name, 0, REG_SZ, (BYTE *)value,
|
|
strlen( value ) ) != ERROR_SUCCESS )
|
|
{
|
|
RegCloseKey(reg_key);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
RegCloseKey (reg_key);
|
|
return 0;
|
|
#endif /*!HAVE_W32CE_SYSTEM*/
|
|
}
|
|
|
|
#endif /*HAVE_W32_SYSTEM*/
|