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// file : libbutl/uuid-openbsd.cxx -*- C++ -*-
// license : MIT; see accompanying LICENSE file
#ifndef BUILD2_BOOTSTRAP
#include <libbutl/uuid.hxx>
#include <uuid.h>
#include <errno.h>
#include <cassert>
#include <cstring> // memcpy()
#include <system_error>
using namespace std;
namespace butl
{
void
uuid_throw_weak (); // uuid.cxx
uuid uuid_system_generator::
generate (bool strong)
{
// The OpenBSD uuid_*() (<uuid.h>, uuid_compare(3)) API generates version
// 4 UUIDs (i.e. randomly generated) at least from version 6.4. For now we
// will assume that only random ones are strong.
//
// Here we assume uuid_t has the same definition as in FreeBSD/NetBSD (it
// is defined in <sys/uuid.h>).
//
uuid_t d;
uint32_t s;
uuid_create (&d, &s);
// None of the uuid_s_* errors seem plausible for this function so let's
// return the generic "not supported" error code.
//
if (s != uuid_s_ok)
throw system_error (ENOSYS, system_category ());
uuid r;
// This is effectively just memcpy() but let's reference the member names
// in case anything changes on either side.
//
r.time_low = d.time_low;
r.time_mid = d.time_mid;
r.time_hiv = d.time_hi_and_version;
r.clock_seq_hir = d.clock_seq_hi_and_reserved;
r.clock_seq_low = d.clock_seq_low;
memcpy (r.node, d.node, 6);
assert (r.variant () == uuid_variant::dce); // Sanity check.
if (strong)
{
switch (r.version ())
{
case uuid_version::random: break;
default: uuid_throw_weak ();
}
}
return r;
}
void uuid_system_generator::
initialize ()
{
}
void uuid_system_generator::
terminate ()
{
}
}
#endif // BUILD2_BOOTSTRAP
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