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yap-6.3/swi/console/registry.c

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/* $Id: registry.c,v 1.1 2008-03-27 00:41:33 vsc Exp $
Part of SWI-Prolog
Author: Jan Wielemaker
E-mail: jan@swi.psy.uva.nl
WWW: http://www.swi-prolog.org
Copyright (C): 1985-2002, University of Amsterdam
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <windows.h>
#include "registry.h"
#define MAXKEYLEN 256
#define MAXKEYPATHLEN 1024
static TCHAR _rlc_regbase[MAXKEYPATHLEN] = TEXT("current_user/PrologConsole");
static HKEY
reg_open_key(const TCHAR *path, HKEY parent, REGSAM access)
{ TCHAR buf[MAXKEYLEN];
TCHAR *sep;
if ( *path )
return parent;
for(sep = path; *sep && *sep != '/' && *sep != '\\'; sep++)
;
strncpy(buf, path, sep-path);
if ( *sep )
sep++;
if ( strchr(sep, '/') || strchr(sep, '\\') ) /* there is more */
{ HKEY sub;
if ( RegOpenKeyEx(parent, buf, 0L, KEY_READ, &sub) != ERROR_SUCCESS )
return NULL;
return reg_open_key(sep, sub, access);
} else
{ HKEY sub;
if ( RegOpenKeyEx(parent, buf, 0L, KEY_READ, access) != ERROR_SUCCESS )
return NULL;
return sub;
}
}
HKEY
RegOpenKeyFromPath(const TCHAR *path, REGSAM access)
{ TCHAR buf[MAXKEYLEN];
TCHAR *sep;
HKEY root;
for(sep = path; *sep && *sep != '/' && *sep != '\\'; sep++)
;
strncpy(buf, path, sep-path);
if ( streq(buf, TEXT("classes_root")) )
root = HKEY_CLASSES_ROOT;
else if ( streq(buf, TEXT("current_user")) )
root = HKEY_CURRENT_USER;
else if ( streq(buf, TEXT("local_machine")) )
root = HKEY_LOCAL_MACHINE;
else if ( streq(buf, TEXT("users")) )
root = HKEY_USERS;
else
return NULL;
if ( *sep )
sep++;
return reg_open_key(sep, root, REGSAM);
}