#!/usr/bin/env python

# Copyright (c) 2014, Jan Varho
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

"""Finds and loads libsodium"""

import ctypes, ctypes.util

_libsodium_soname = ctypes.util.find_library('sodium')
if _libsodium_soname is None:
    raise ImportError('Unable to find libsodium')

try:
    _lib = ctypes.CDLL(_libsodium_soname)
except OSError:
    raise ImportError('Unable to load libsodium: %s' % _libsodium_soname)

try:
    _lib.sodium_init()
except AttributeError as e:
    raise ImportError('Incompatible libsodium: %s (%s)' % (_lib._name, str(e)))

