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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
/*
* UUIDs and GUIDs (both RFC 4122) differ on byte positions of the
* internal representation. This matters when encoding to the wire
* and adhering to versioning info. Microsoft APIs used here operate
* on GUIDs even if the name implies UUIDs. AMQP expects the UUID 128
* bit format which is used here unless otherwise noted.
*/
#include <rpc.h>
#ifdef uuid_t /* Done in rpcdce.h */
# undef uuid_t
#endif
#include "qpid/sys/uuid.h"
#include <string.h>
namespace {
inline void iswap (char *p1, char *p2) {
char t = *p1;
*p1 = *p2;
*p2 = t;
}
void toUuid (const UUID *guid, uint8_t uuid[qpid::sys::UuidSize]) {
// copy then swap bytes
memcpy ((char *) uuid, (char *) guid, qpid::sys::UuidSize);
char *p = (char *) uuid;
iswap (p, p+3);
iswap (p+1, p+2);
iswap (p+4, p+5);
iswap (p+6, p+7);
}
} // namespace
namespace qpid {
namespace sys {
void uuid_generate (uint8_t out[qpid::sys::UuidSize]) {
UUID guid;
UuidCreate (&guid);
// Version 4 GUID, convert to UUID
toUuid (&guid, out);
}
}}
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