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Diffstat (limited to 'boost/uuid/detail/random_provider_getentropy.ipp')
-rw-r--r-- | boost/uuid/detail/random_provider_getentropy.ipp | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/boost/uuid/detail/random_provider_getentropy.ipp b/boost/uuid/detail/random_provider_getentropy.ipp new file mode 100644 index 0000000000..1379bf709c --- /dev/null +++ b/boost/uuid/detail/random_provider_getentropy.ipp @@ -0,0 +1,37 @@ +// +// Copyright (c) 2017 James E. King III +// +// Distributed under the Boost Software License, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at +// http://www.boost.org/LICENCE_1_0.txt) +// +// getentropy() capable platforms +// + +#include <boost/throw_exception.hpp> +#include <cerrno> +#include <unistd.h> + +namespace boost { +namespace uuids { +namespace detail { + +class random_provider_base +{ + public: + //! Obtain entropy and place it into a memory location + //! \param[in] buf the location to write entropy + //! \param[in] siz the number of bytes to acquire + void get_random_bytes(void *buf, size_t siz) + { + if (-1 == getentropy(buf, siz)) + { + int err = errno; + BOOST_THROW_EXCEPTION(entropy_error(err, "getentropy")); + } + } +}; + +} // detail +} // uuids +} // boost |