77 	int fdr;  in setup_rx()  local
79 	fdr = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_IP));  in setup_rx()
80 	if (fdr == -1)  in setup_rx()
83 	return fdr;  in setup_rx()
140 static int read_verify_pkt(int fdr, char payload_char)  in read_verify_pkt()  argument
145 	ret = read(fdr, buf, sizeof(buf));  in read_verify_pkt()
162 	int fdr, fdt, ret = 0;  in main()  local
164 	fdr = setup_rx();  in main()
170 	ret |= read_verify_pkt(fdr, payload_patterns[0]);  in main()
171 	ret |= read_verify_pkt(fdr, payload_patterns[1]);  in main()
175 	if (close(fdr))  in main()