4  * Based on the MERIT NNstat etherifrt.c and the Ultrix pcap-pf.c
56 	register struct bpf_insn *fcode = fp->bf_insns;  in readloop()
74 			caplen = ph->tap.th_wirelen > snaplen ? snaplen : ph->tap  in readloop()
76 			if (pcapint_filter(fcode, (char *)ph->packet,  in readloop()
77 						ph->tap.th_wirelen, caplen)) {  in readloop()
78 				if (cnt >= 0 && --cnt < 0)  in readloop()
80 				(*printit)((char *)ph->packet,  in readloop()
81 					(struct timeval *)ph->tap.th_timestamp,  in readloop()
82 					ph->tap.th_wirelen, caplen);  in readloop()
84 			inc = ph->length.PacketOffset;  in readloop()
85 			cc -= inc;  in readloop()
91 			if (cnt >= 0 && --cnt < 0)  in readloop()
108 			exit(-1);  in efReadError()
116 		exit(-1);  in efReadError()
126 	if (ioctl(fd, EIOSTATS, &es) == -1) {  in wrapup()
128 		exit(-1);  in wrapup()
148 	struct eniocb ctl;  in initdevice()  local
159 	if (if_fd == -1) {  in initdevice()
162 "your system may not be properly configured; see \"man enet(4)\"");  in initdevice()
163 		exit(-1);  in initdevice()
168 	if (ioctl(if_fd, EIOCGETP, (char *)&ctl) == -1) {  in initdevice()
170 		exit(-1);  in initdevice()
176 	ctl.en_rtout = 1 * ctl.en_hz;  in initdevice()
177 	ctl.en_tr_etherhead = 1;  in initdevice()
178 	ctl.en_tap_network = 1;  in initdevice()
179 	ctl.en_multi_packet = 1;  in initdevice()
180 	ctl.en_maxlen = BUFSPACE;  in initdevice()
182 	ctl.en_rtout = 64;	/* randomly picked value for HZ */  in initdevice()
184 	if (ioctl(if_fd, EIOCSETP, &ctl) == -1) {  in initdevice()
186 		exit(-1);  in initdevice()
193 	if (ioctl(if_fd, EIOCFLUSH) == -1) {  in initdevice()
195 		exit(-1);  in initdevice()
200 	maxwaiting = ctl.en_maxwaiting;  in initdevice()
201 	if (ioctl(if_fd, EIOCSETW, &maxwaiting) == -1) {  in initdevice()
203 		exit(-1);  in initdevice()
209 	if (ioctl(if_fd, EIOCLRSTAT, 0) == -1) {  in initdevice()
211 		exit(-1);  in initdevice()
219 	if (ioctl(if_fd, EIOCSETF, &filter) == -1) {  in initdevice()
221 		exit(-1);  in initdevice()