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/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2000-2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
#include "apr.h"
#include "apr_private.h"
#include "apr_general.h"
#include "apr_portable.h"
#include "apr_arch_misc.h"
#include <wincrypt.h>
APR_DECLARE(apr_status_t) apr_generate_random_bytes(unsigned char * buf,
apr_size_t length)
{
HCRYPTPROV hProv;
apr_status_t res = APR_SUCCESS;
/* 0x40 bit = CRYPT_SILENT, only introduced in more recent PSDKs
* and will only work for Win2K and later.
*/
DWORD flags = CRYPT_VERIFYCONTEXT
| ((apr_os_level >= APR_WIN_2000) ? 0x40 : 0);
if (!CryptAcquireContext(&hProv, NULL, NULL, PROV_RSA_FULL, flags)) {
return apr_get_os_error();
}
if (!CryptGenRandom(hProv, length, buf)) {
res = apr_get_os_error();
}
CryptReleaseContext(hProv, 0);
return res;
}
APR_DECLARE(apr_status_t) apr_os_uuid_get(unsigned char *uuid_data)
{
/* Note: this call doesn't actually require CoInitialize() first
*
* XXX: we should scramble the bytes or some such to eliminate the
* possible misuse/abuse since uuid is based on the NIC address, and
* is therefore not only a uniqifier, but an identity (which might not
* be appropriate in all cases.
*
* Note that Win2000, XP and later no longer suffer from this problem,
* a scrambling fix is only needed for (apr_os_level < APR_WIN_2000)
*/
if (FAILED(UuidCreate((UUID *)uuid_data))) {
return APR_EGENERAL;
}
return APR_SUCCESS;
}
|
