70 static int BpfFd = -1;  variable
98 		BpfFd = open(bpfdev, O_RDWR);  in BpfOpen()
99 	} while (BpfFd < 0 && (errno == EBUSY || errno == EPERM));  in BpfOpen()
101 	if (BpfFd < 0) {  in BpfOpen()
111 	if (ioctl(BpfFd, BIOCSETIF, (caddr_t)&ifr) < 0) {  in BpfOpen()
119 	if (ioctl(BpfFd, BIOCGDLT, (caddr_t)&n) < 0) {  in BpfOpen()
133 	if (ioctl(BpfFd, BIOCIMMEDIATE, (caddr_t)&n) < 0) {  in BpfOpen()
149 	if (ioctl(BpfFd, BIOCPROMISC, (caddr_t)0) < 0) {  in BpfOpen()
157 	if (ioctl(BpfFd, BIOCGBLEN, (caddr_t)&BpfLen) < 0) {  in BpfOpen()
191 		if (ioctl(BpfFd, BIOCSETF, (caddr_t)&bpf_pgm) < 0) {  in BpfOpen()
197 	return(BpfFd);  in BpfOpen()
308 		if ((cc = read(BpfFd, (char *)BpfPkt, (int)BpfLen)) < 0) {  in BpfRead()
363 	if (write(BpfFd, (char *)&rconn->rmp, rconn->rmplen) < 0) {  in BpfWrite()
393 	if (BpfFd == -1)  in BpfClose()
401 	if (ioctl(BpfFd, SIOCDELMULTI, (caddr_t)&ifr) < 0)  in BpfClose()
402 		(void) ioctl(BpfFd, BIOCPROMISC, (caddr_t)0);  in BpfClose()
404 	(void) close(BpfFd);  in BpfClose()
405 	BpfFd = -1;  in BpfClose()