m_add_data
m_add_data(p, to, (size_t)ret);
m_add_data(p, to, (size_t)buf_len);
m_add_data(p_ca, (const void *)from, (size_t)flen);
m_add_data(p_ca, (const void *)dgst, (size_t)dgst_len);
m_add_data(p, &userinfo, sizeof(userinfo));
m_add_data(p_parent, &deliver, sizeof(deliver));
m_add_data(proc, NULL, 0);
m_add_data(s->proc, ar->ar_data, ar->ar_datalen);
void m_add_data(struct mproc *, const void *, size_t);
m_add_data(p_control, value, sizeof(*value));
m_add_data(p_control, value, sizeof(*value));
m_add_data(p_control, value, sizeof(*value));