fcgs_gidft_req_s
struct fcgs_gidft_req_s *gidft = (struct fcgs_gidft_req_s *)(cthdr + 1);
memset(gidft, 0, sizeof(struct fcgs_gidft_req_s));
return sizeof(struct fcgs_gidft_req_s) + sizeof(struct ct_hdr_s);