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/*=========================================================================
Program: GDCM (Grassroots DICOM). A DICOM library
Copyright (c) 2006-2011 Mathieu Malaterre
All rights reserved.
See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "gdcmUUIDGenerator.h"
#include "gdcmTrace.h"
#include "gdcmSystem.h"
#include <cstring> // memcpy
// FIXME...
#if defined(_WIN32) || defined(__CYGWIN__)
#define HAVE_UUIDCREATE
#else
#define HAVE_UUID_GENERATE
#endif
#ifdef HAVE_UUID_GENERATE
#include "gdcm_uuid.h"
#endif
#ifdef GDCM_HAVE_RPC_H
#include <rpc.h>
#endif
namespace gdcm
{
const char* UUIDGenerator::Generate()
{
Unique.resize( 36 );
char *uuid_data = &Unique[0];
#if defined(HAVE_UUID_GENERATE)
assert( sizeof(uuid_t) == 16 );
uuid_t g;
uuid_generate(g);
uuid_unparse(g, uuid_data);
#elif defined(HAVE_UUID_CREATE)
uint32_t rv;
uuid_t g;
uuid_create(&g, &rv);
if (rv != uuid_s_ok) return NULL;
uuid_to_string(&g, &uuid_data, &rv);
if (rv != uuid_s_ok) return NULL;
#elif defined(HAVE_UUIDCREATE)
UUID uuid;
UuidCreate(&uuid);
BYTE * str = 0;
UuidToString(&uuid, &str);
Unique = (char*)str;
RpcStringFree(&str);
#else
#error should not happen
#endif
assert( IsValid( Unique.c_str() ) );
return Unique.c_str();
}
bool UUIDGenerator::IsValid(const char *suid)
{
if( !suid ) return false;
#if defined(HAVE_UUID_GENERATE)
uuid_t uu;
// technically the specification wants char* input not const char*:
// this makes compilation fails otherwise on OpenIndiana:
int res = uuid_parse((char*)suid, uu);
if( res ) return false;
#elif defined(HAVE_UUID_CREATE)
// http://www.freebsd.org/cgi/man.cgi?query=uuid_create
uint32_t status;
uuid_t uuid;
uuid_from_string(suid, &uuid, &status);
if( status != uuid_s_ok ) return false;
#elif defined(HAVE_UUIDCREATE)
// http://msdn.microsoft.com/en-us/library/windows/desktop/aa379336(v=vs.85).aspx
UUID uuid;
if (FAILED(UuidFromString((unsigned char*)suid, &uuid)))
{
return false;
}
#else
#error should not happen
#endif
// no error found !
return true;
}
} // end namespace gdcm
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