gctl_add_param
gctl_add_param(req, "output", sizeof(buf), buf,
gctl_add_param(req, name, len, __DECONST(void *, value), GCTL_PARAM_RD);
gctl_add_param(req, name, len, value, GCTL_PARAM_RW);
gctl_add_param(r, "output", GEOM_GETXML_BUFFER, p,
void gctl_add_param(struct gctl_req *req, const char *name, int len,
gctl_add_param(grq, "output", sizeof(buf1), buf1,
gctl_add_param(grq, "output", ncp, cp,
gctl_add_param(req, "output", sizeof(buf), buf,
gctl_add_param(r, "output", sizeof(output), output,