diff options
| -rw-r--r-- | libbutl/buildfile | 1 | ||||
| -rw-r--r-- | libbutl/uuid-openbsd.cxx | 80 |
2 files changed, 81 insertions, 0 deletions
diff --git a/libbutl/buildfile b/libbutl/buildfile index a7b20f3..4dd952c 100644 --- a/libbutl/buildfile +++ b/libbutl/buildfile @@ -39,6 +39,7 @@ lib{butl}: cxx{uuid-linux}: include = ($tclass == 'linux') lib{butl}: cxx{uuid-macos}: include = ($tclass == 'macos') lib{butl}: cxx{uuid-windows}: include = $windows lib{butl}: cxx{uuid-freebsd}: include = ($tsys == 'freebsd' || $tsys == 'netbsd') +lib{butl}: cxx{uuid-openbsd}: include = ($tsys == 'openbsd') # GCC prior to version 6 has flaky `#pragma GCC diagnostic` so we have to # disable certain warnings outright. diff --git a/libbutl/uuid-openbsd.cxx b/libbutl/uuid-openbsd.cxx new file mode 100644 index 0000000..b64436b --- /dev/null +++ b/libbutl/uuid-openbsd.cxx @@ -0,0 +1,80 @@ +// 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 |