+ c_int)
+libcrypto.X509_LOOKUP_file.restype = c_void_p
+libcrypto.X509_LOOKUP_hash_dir.restype = c_void_p
+libcrypto.X509_NAME_cmp.argtypes = (c_void_p, c_void_p)
+libcrypto.X509_NAME_entry_count.argtypes = (c_void_p,)
+libcrypto.X509_NAME_free.argtypes = (c_void_p,)
+libcrypto.X509_NAME_new.restype = c_void_p
+libcrypto.X509_NAME_print_ex.argtypes = (c_void_p, c_void_p, c_int, c_ulong)
+libcrypto.X509_PURPOSE_get_by_sname.argtypes=(c_char_p,)
+libcrypto.X509_verify.argtypes = (c_void_p, c_void_p)
+libcrypto.X509_verify_cert.argtypes = (c_void_p,)