Rename one case of c_type to c_ptr_type.

 * It needs to be defined somewhere in Tor, using

 * "DISPATCH_REGISTER_TYPE."

 *

 * "c_type" is a C pointer type (like "char *" or "struct foo *").

 * "c_ptr_type" is a C pointer type (like "char *" or "struct foo *").

 * The "*" needs to be included.

 */

#define DECLARE_MESSAGE(messagename, typename, c_type)                  \

  DECLARE_MESSAGE_COMMON__(messagename, typename, c_type)               \

  ATTR_UNUSED static inline c_type                                      \

#define DECLARE_MESSAGE(messagename, typename, c_ptr_type)              \

  DECLARE_MESSAGE_COMMON__(messagename, typename, c_ptr_type)           \

  ATTR_UNUSED static inline c_ptr_type                                  \

  msg_arg_get__ ##messagename(msg_aux_data_t m)                         \

  {                                                                     \

    return m.ptr;                                                       \

  }                                                                     \

  ATTR_UNUSED static inline void                                        \

  msg_arg_set__ ##messagename(msg_aux_data_t *m, c_type v)              \

  msg_arg_set__ ##messagename(msg_aux_data_t *m, c_ptr_type v)          \

  {                                                                     \

    m->ptr = v;                                                         \

  }                                                                     \