/thirdparty/breakpad/common/solaris/guid_creator.cc
http://github.com/tomahawk-player/tomahawk · C++ · 84 lines · 35 code · 10 blank · 39 comment · 2 complexity · 0f1930071d1aad21736dc77707600d74 MD5 · raw file
- // Copyright (c) 2007, Google Inc.
- // All rights reserved.
- //
- // Redistribution and use in source and binary forms, with or without
- // modification, are permitted provided that the following conditions are
- // met:
- //
- // * Redistributions of source code must retain the above copyright
- // notice, this list of conditions and the following disclaimer.
- // * 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.
- // * Neither the name of Google Inc. nor the names of its
- // contributors may be used to endorse or promote products derived from
- // this software without specific prior written permission.
- //
- // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- // "AS IS" AND ANY EXPRESS 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 COPYRIGHT
- // OWNER OR 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.
- // Author: Alfred Peng
- #include <cassert>
- #include <ctime>
- #include <stdio.h>
- #include <stdlib.h>
- #include <unistd.h>
- #include "common/solaris/guid_creator.h"
- //
- // GUIDGenerator
- //
- // This class is used to generate random GUID.
- // Currently use random number to generate a GUID. This should be OK since
- // we don't expect crash to happen very offen.
- //
- class GUIDGenerator {
- public:
- GUIDGenerator() {
- srandom(time(NULL));
- }
- bool CreateGUID(GUID *guid) const {
- guid->data1 = random();
- guid->data2 = (u_int16_t)(random());
- guid->data3 = (u_int16_t)(random());
- *reinterpret_cast<u_int32_t*>(&guid->data4[0]) = random();
- *reinterpret_cast<u_int32_t*>(&guid->data4[4]) = random();
- return true;
- }
- };
- // Guid generator.
- const GUIDGenerator kGuidGenerator;
- bool CreateGUID(GUID *guid) {
- return kGuidGenerator.CreateGUID(guid);
- };
- // Parse guid to string.
- bool GUIDToString(const GUID *guid, char *buf, int buf_len) {
- // Should allow more space the the max length of GUID.
- assert(buf_len > kGUIDStringLength);
- int num = snprintf(buf, buf_len, kGUIDFormatString,
- guid->data1, guid->data2, guid->data3,
- *reinterpret_cast<const u_int32_t *>(&(guid->data4[0])),
- *reinterpret_cast<const u_int32_t *>(&(guid->data4[4])));
- if (num != kGUIDStringLength)
- return false;
- buf[num] = '\0';
- return true;
- }