diff --git a/util/w32reg.c b/util/w32reg.c new file mode 100644 index 000000000..01ca5df89 --- /dev/null +++ b/util/w32reg.c @@ -0,0 +1,88 @@ +/* w32reg.c - MS-Windows Registry access + * Copyright (C) 1999 Free Software Foundation, Inc. + * + * This file is part of GnuPG. + * + * GnuPG is free software; you can redistribute it and/or modify + * it under the terms of 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. + * + * GnuPG 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 copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + */ + +#include +#ifdef __MINGW32__ /* This module is only used in this environment */ + +#include +#include +#include +#include +#include +#include "util.h" +#include "memory.h" + + +/**************** + * Return a string from the Win32 Registry or NULL in case of + * error. Caller must release the return value. A NUKK for root + * is an alias fro HKEY_CURRENT_USER + * NOTE: The value is allocated with a plain malloc() - use free() and not + * the usual m_free()!!! + */ +char * +read_w32_registry_string( const char *root, const char *dir, const char *name ) +{ + HKEY root_key, key_handle; + DWORD n1, nbytes; + char *result = NULL; + + 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; + + if( RegOpenKeyEx( root_key, dir, 0, KEY_READ, &key_handle ) ) + return NULL; /* no need for a RegClose, so return direct */ + + nbytes = 1; + if( RegQueryValueEx( key_handle, name, 0, NULL, NULL, &nbytes ) ) + goto leave; + result = malloc( (n1=nbytes+1) ); + if( !result ) + goto leave; + if( RegQueryValueEx( key_handle, name, 0, NULL, result, &n1 ) ) { + m_free(result); result = NULL; + goto leave; + } + result[nbytes] = 0; /* make sure it is really a string */ + + leave: + RegCloseKey( key_handle ); + return result; +} + + + + + +#endif /* __MINGW32__ */